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b534c6d3 | 1 | /* tc-i386.c -- Assemble code for the Intel 80386 |
b3adc24a | 2 | Copyright (C) 1989-2020 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
9 | any later version. |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | 02110-1301, USA. */ | |
252b5132 | 20 | |
47926f60 KH |
21 | /* Intel 80386 machine specific gas. |
22 | Written by Eliot Dresselhaus (eliot@mgm.mit.edu). | |
3e73aa7c | 23 | x86_64 support by Jan Hubicka (jh@suse.cz) |
0f10071e | 24 | VIA PadLock support by Michal Ludvig (mludvig@suse.cz) |
47926f60 KH |
25 | Bugs & suggestions are completely welcome. This is free software. |
26 | Please help us make it better. */ | |
252b5132 | 27 | |
252b5132 | 28 | #include "as.h" |
3882b010 | 29 | #include "safe-ctype.h" |
252b5132 | 30 | #include "subsegs.h" |
316e2c05 | 31 | #include "dwarf2dbg.h" |
54cfded0 | 32 | #include "dw2gencfi.h" |
d2b2c203 | 33 | #include "elf/x86-64.h" |
40fb9820 | 34 | #include "opcodes/i386-init.h" |
252b5132 | 35 | |
41fd2579 L |
36 | #ifdef HAVE_LIMITS_H |
37 | #include <limits.h> | |
38 | #else | |
39 | #ifdef HAVE_SYS_PARAM_H | |
40 | #include <sys/param.h> | |
41 | #endif | |
42 | #ifndef INT_MAX | |
43 | #define INT_MAX (int) (((unsigned) (-1)) >> 1) | |
44 | #endif | |
45 | #endif | |
46 | ||
c3332e24 | 47 | #ifndef INFER_ADDR_PREFIX |
eecb386c | 48 | #define INFER_ADDR_PREFIX 1 |
c3332e24 AM |
49 | #endif |
50 | ||
29b0f896 AM |
51 | #ifndef DEFAULT_ARCH |
52 | #define DEFAULT_ARCH "i386" | |
246fcdee | 53 | #endif |
252b5132 | 54 | |
edde18a5 AM |
55 | #ifndef INLINE |
56 | #if __GNUC__ >= 2 | |
57 | #define INLINE __inline__ | |
58 | #else | |
59 | #define INLINE | |
60 | #endif | |
61 | #endif | |
62 | ||
6305a203 L |
63 | /* Prefixes will be emitted in the order defined below. |
64 | WAIT_PREFIX must be the first prefix since FWAIT is really is an | |
65 | instruction, and so must come before any prefixes. | |
66 | The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX, | |
42164a71 | 67 | REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */ |
6305a203 L |
68 | #define WAIT_PREFIX 0 |
69 | #define SEG_PREFIX 1 | |
70 | #define ADDR_PREFIX 2 | |
71 | #define DATA_PREFIX 3 | |
c32fa91d | 72 | #define REP_PREFIX 4 |
42164a71 | 73 | #define HLE_PREFIX REP_PREFIX |
7e8b059b | 74 | #define BND_PREFIX REP_PREFIX |
c32fa91d | 75 | #define LOCK_PREFIX 5 |
4e9ac44a L |
76 | #define REX_PREFIX 6 /* must come last. */ |
77 | #define MAX_PREFIXES 7 /* max prefixes per opcode */ | |
6305a203 L |
78 | |
79 | /* we define the syntax here (modulo base,index,scale syntax) */ | |
80 | #define REGISTER_PREFIX '%' | |
81 | #define IMMEDIATE_PREFIX '$' | |
82 | #define ABSOLUTE_PREFIX '*' | |
83 | ||
84 | /* these are the instruction mnemonic suffixes in AT&T syntax or | |
85 | memory operand size in Intel syntax. */ | |
86 | #define WORD_MNEM_SUFFIX 'w' | |
87 | #define BYTE_MNEM_SUFFIX 'b' | |
88 | #define SHORT_MNEM_SUFFIX 's' | |
89 | #define LONG_MNEM_SUFFIX 'l' | |
90 | #define QWORD_MNEM_SUFFIX 'q' | |
6305a203 L |
91 | /* Intel Syntax. Use a non-ascii letter since since it never appears |
92 | in instructions. */ | |
93 | #define LONG_DOUBLE_MNEM_SUFFIX '\1' | |
94 | ||
95 | #define END_OF_INSN '\0' | |
96 | ||
79dec6b7 JB |
97 | /* This matches the C -> StaticRounding alias in the opcode table. */ |
98 | #define commutative staticrounding | |
99 | ||
6305a203 L |
100 | /* |
101 | 'templates' is for grouping together 'template' structures for opcodes | |
102 | of the same name. This is only used for storing the insns in the grand | |
103 | ole hash table of insns. | |
104 | The templates themselves start at START and range up to (but not including) | |
105 | END. | |
106 | */ | |
107 | typedef struct | |
108 | { | |
d3ce72d0 NC |
109 | const insn_template *start; |
110 | const insn_template *end; | |
6305a203 L |
111 | } |
112 | templates; | |
113 | ||
114 | /* 386 operand encoding bytes: see 386 book for details of this. */ | |
115 | typedef struct | |
116 | { | |
117 | unsigned int regmem; /* codes register or memory operand */ | |
118 | unsigned int reg; /* codes register operand (or extended opcode) */ | |
119 | unsigned int mode; /* how to interpret regmem & reg */ | |
120 | } | |
121 | modrm_byte; | |
122 | ||
123 | /* x86-64 extension prefix. */ | |
124 | typedef int rex_byte; | |
125 | ||
6305a203 L |
126 | /* 386 opcode byte to code indirect addressing. */ |
127 | typedef struct | |
128 | { | |
129 | unsigned base; | |
130 | unsigned index; | |
131 | unsigned scale; | |
132 | } | |
133 | sib_byte; | |
134 | ||
6305a203 L |
135 | /* x86 arch names, types and features */ |
136 | typedef struct | |
137 | { | |
138 | const char *name; /* arch name */ | |
8a2c8fef | 139 | unsigned int len; /* arch string length */ |
6305a203 L |
140 | enum processor_type type; /* arch type */ |
141 | i386_cpu_flags flags; /* cpu feature flags */ | |
8a2c8fef | 142 | unsigned int skip; /* show_arch should skip this. */ |
6305a203 L |
143 | } |
144 | arch_entry; | |
145 | ||
293f5f65 L |
146 | /* Used to turn off indicated flags. */ |
147 | typedef struct | |
148 | { | |
149 | const char *name; /* arch name */ | |
150 | unsigned int len; /* arch string length */ | |
151 | i386_cpu_flags flags; /* cpu feature flags */ | |
152 | } | |
153 | noarch_entry; | |
154 | ||
78f12dd3 | 155 | static void update_code_flag (int, int); |
e3bb37b5 L |
156 | static void set_code_flag (int); |
157 | static void set_16bit_gcc_code_flag (int); | |
158 | static void set_intel_syntax (int); | |
1efbbeb4 | 159 | static void set_intel_mnemonic (int); |
db51cc60 | 160 | static void set_allow_index_reg (int); |
7bab8ab5 | 161 | static void set_check (int); |
e3bb37b5 | 162 | static void set_cpu_arch (int); |
6482c264 | 163 | #ifdef TE_PE |
e3bb37b5 | 164 | static void pe_directive_secrel (int); |
6482c264 | 165 | #endif |
e3bb37b5 L |
166 | static void signed_cons (int); |
167 | static char *output_invalid (int c); | |
ee86248c JB |
168 | static int i386_finalize_immediate (segT, expressionS *, i386_operand_type, |
169 | const char *); | |
170 | static int i386_finalize_displacement (segT, expressionS *, i386_operand_type, | |
171 | const char *); | |
a7619375 | 172 | static int i386_att_operand (char *); |
e3bb37b5 | 173 | static int i386_intel_operand (char *, int); |
ee86248c JB |
174 | static int i386_intel_simplify (expressionS *); |
175 | static int i386_intel_parse_name (const char *, expressionS *); | |
e3bb37b5 L |
176 | static const reg_entry *parse_register (char *, char **); |
177 | static char *parse_insn (char *, char *); | |
178 | static char *parse_operands (char *, const char *); | |
179 | static void swap_operands (void); | |
4d456e3d | 180 | static void swap_2_operands (int, int); |
48bcea9f | 181 | static enum flag_code i386_addressing_mode (void); |
e3bb37b5 L |
182 | static void optimize_imm (void); |
183 | static void optimize_disp (void); | |
83b16ac6 | 184 | static const insn_template *match_template (char); |
e3bb37b5 L |
185 | static int check_string (void); |
186 | static int process_suffix (void); | |
187 | static int check_byte_reg (void); | |
188 | static int check_long_reg (void); | |
189 | static int check_qword_reg (void); | |
190 | static int check_word_reg (void); | |
191 | static int finalize_imm (void); | |
192 | static int process_operands (void); | |
193 | static const seg_entry *build_modrm_byte (void); | |
194 | static void output_insn (void); | |
195 | static void output_imm (fragS *, offsetT); | |
196 | static void output_disp (fragS *, offsetT); | |
29b0f896 | 197 | #ifndef I386COFF |
e3bb37b5 | 198 | static void s_bss (int); |
252b5132 | 199 | #endif |
17d4e2a2 L |
200 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
201 | static void handle_large_common (int small ATTRIBUTE_UNUSED); | |
b4a3a7b4 L |
202 | |
203 | /* GNU_PROPERTY_X86_ISA_1_USED. */ | |
204 | static unsigned int x86_isa_1_used; | |
205 | /* GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
206 | static unsigned int x86_feature_2_used; | |
207 | /* Generate x86 used ISA and feature properties. */ | |
208 | static unsigned int x86_used_note = DEFAULT_X86_USED_NOTE; | |
17d4e2a2 | 209 | #endif |
252b5132 | 210 | |
a847613f | 211 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 212 | |
43234a1e L |
213 | /* This struct describes rounding control and SAE in the instruction. */ |
214 | struct RC_Operation | |
215 | { | |
216 | enum rc_type | |
217 | { | |
218 | rne = 0, | |
219 | rd, | |
220 | ru, | |
221 | rz, | |
222 | saeonly | |
223 | } type; | |
224 | int operand; | |
225 | }; | |
226 | ||
227 | static struct RC_Operation rc_op; | |
228 | ||
229 | /* The struct describes masking, applied to OPERAND in the instruction. | |
230 | MASK is a pointer to the corresponding mask register. ZEROING tells | |
231 | whether merging or zeroing mask is used. */ | |
232 | struct Mask_Operation | |
233 | { | |
234 | const reg_entry *mask; | |
235 | unsigned int zeroing; | |
236 | /* The operand where this operation is associated. */ | |
237 | int operand; | |
238 | }; | |
239 | ||
240 | static struct Mask_Operation mask_op; | |
241 | ||
242 | /* The struct describes broadcasting, applied to OPERAND. FACTOR is | |
243 | broadcast factor. */ | |
244 | struct Broadcast_Operation | |
245 | { | |
8e6e0792 | 246 | /* Type of broadcast: {1to2}, {1to4}, {1to8}, or {1to16}. */ |
43234a1e L |
247 | int type; |
248 | ||
249 | /* Index of broadcasted operand. */ | |
250 | int operand; | |
4a1b91ea L |
251 | |
252 | /* Number of bytes to broadcast. */ | |
253 | int bytes; | |
43234a1e L |
254 | }; |
255 | ||
256 | static struct Broadcast_Operation broadcast_op; | |
257 | ||
c0f3af97 L |
258 | /* VEX prefix. */ |
259 | typedef struct | |
260 | { | |
43234a1e L |
261 | /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */ |
262 | unsigned char bytes[4]; | |
c0f3af97 L |
263 | unsigned int length; |
264 | /* Destination or source register specifier. */ | |
265 | const reg_entry *register_specifier; | |
266 | } vex_prefix; | |
267 | ||
252b5132 | 268 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 269 | i386_insn. */ |
252b5132 | 270 | |
520dc8e8 AM |
271 | union i386_op |
272 | { | |
273 | expressionS *disps; | |
274 | expressionS *imms; | |
275 | const reg_entry *regs; | |
276 | }; | |
277 | ||
a65babc9 L |
278 | enum i386_error |
279 | { | |
86e026a4 | 280 | operand_size_mismatch, |
a65babc9 L |
281 | operand_type_mismatch, |
282 | register_type_mismatch, | |
283 | number_of_operands_mismatch, | |
284 | invalid_instruction_suffix, | |
285 | bad_imm4, | |
a65babc9 L |
286 | unsupported_with_intel_mnemonic, |
287 | unsupported_syntax, | |
6c30d220 L |
288 | unsupported, |
289 | invalid_vsib_address, | |
7bab8ab5 | 290 | invalid_vector_register_set, |
43234a1e L |
291 | unsupported_vector_index_register, |
292 | unsupported_broadcast, | |
43234a1e L |
293 | broadcast_needed, |
294 | unsupported_masking, | |
295 | mask_not_on_destination, | |
296 | no_default_mask, | |
297 | unsupported_rc_sae, | |
298 | rc_sae_operand_not_last_imm, | |
299 | invalid_register_operand, | |
a65babc9 L |
300 | }; |
301 | ||
252b5132 RH |
302 | struct _i386_insn |
303 | { | |
47926f60 | 304 | /* TM holds the template for the insn were currently assembling. */ |
d3ce72d0 | 305 | insn_template tm; |
252b5132 | 306 | |
7d5e4556 L |
307 | /* SUFFIX holds the instruction size suffix for byte, word, dword |
308 | or qword, if given. */ | |
252b5132 RH |
309 | char suffix; |
310 | ||
47926f60 | 311 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
312 | unsigned int operands; |
313 | ||
314 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
315 | of given register, displacement, memory operands and immediate | |
47926f60 | 316 | operands. */ |
252b5132 RH |
317 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
318 | ||
319 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 320 | use OP[i] for the corresponding operand. */ |
40fb9820 | 321 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 322 | |
520dc8e8 AM |
323 | /* Displacement expression, immediate expression, or register for each |
324 | operand. */ | |
325 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 326 | |
3e73aa7c JH |
327 | /* Flags for operands. */ |
328 | unsigned int flags[MAX_OPERANDS]; | |
329 | #define Operand_PCrel 1 | |
c48dadc9 | 330 | #define Operand_Mem 2 |
3e73aa7c | 331 | |
252b5132 | 332 | /* Relocation type for operand */ |
f86103b7 | 333 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 334 | |
252b5132 RH |
335 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
336 | the base index byte below. */ | |
337 | const reg_entry *base_reg; | |
338 | const reg_entry *index_reg; | |
339 | unsigned int log2_scale_factor; | |
340 | ||
341 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 342 | explicit segment overrides are given. */ |
ce8a8b2f | 343 | const seg_entry *seg[2]; |
252b5132 | 344 | |
8325cc63 JB |
345 | /* Copied first memory operand string, for re-checking. */ |
346 | char *memop1_string; | |
347 | ||
252b5132 RH |
348 | /* PREFIX holds all the given prefix opcodes (usually null). |
349 | PREFIXES is the number of prefix opcodes. */ | |
350 | unsigned int prefixes; | |
351 | unsigned char prefix[MAX_PREFIXES]; | |
352 | ||
50128d0c JB |
353 | /* Register is in low 3 bits of opcode. */ |
354 | bfd_boolean short_form; | |
355 | ||
6f2f06be JB |
356 | /* The operand to a branch insn indicates an absolute branch. */ |
357 | bfd_boolean jumpabsolute; | |
358 | ||
b4a3a7b4 L |
359 | /* Has MMX register operands. */ |
360 | bfd_boolean has_regmmx; | |
361 | ||
362 | /* Has XMM register operands. */ | |
363 | bfd_boolean has_regxmm; | |
364 | ||
365 | /* Has YMM register operands. */ | |
366 | bfd_boolean has_regymm; | |
367 | ||
368 | /* Has ZMM register operands. */ | |
369 | bfd_boolean has_regzmm; | |
370 | ||
e379e5f3 L |
371 | /* Has GOTPC or TLS relocation. */ |
372 | bfd_boolean has_gotpc_tls_reloc; | |
373 | ||
252b5132 | 374 | /* RM and SIB are the modrm byte and the sib byte where the |
c1e679ec | 375 | addressing modes of this insn are encoded. */ |
252b5132 | 376 | modrm_byte rm; |
3e73aa7c | 377 | rex_byte rex; |
43234a1e | 378 | rex_byte vrex; |
252b5132 | 379 | sib_byte sib; |
c0f3af97 | 380 | vex_prefix vex; |
b6169b20 | 381 | |
43234a1e L |
382 | /* Masking attributes. */ |
383 | struct Mask_Operation *mask; | |
384 | ||
385 | /* Rounding control and SAE attributes. */ | |
386 | struct RC_Operation *rounding; | |
387 | ||
388 | /* Broadcasting attributes. */ | |
389 | struct Broadcast_Operation *broadcast; | |
390 | ||
391 | /* Compressed disp8*N attribute. */ | |
392 | unsigned int memshift; | |
393 | ||
86fa6981 L |
394 | /* Prefer load or store in encoding. */ |
395 | enum | |
396 | { | |
397 | dir_encoding_default = 0, | |
398 | dir_encoding_load, | |
64c49ab3 JB |
399 | dir_encoding_store, |
400 | dir_encoding_swap | |
86fa6981 | 401 | } dir_encoding; |
891edac4 | 402 | |
a501d77e L |
403 | /* Prefer 8bit or 32bit displacement in encoding. */ |
404 | enum | |
405 | { | |
406 | disp_encoding_default = 0, | |
407 | disp_encoding_8bit, | |
408 | disp_encoding_32bit | |
409 | } disp_encoding; | |
f8a5c266 | 410 | |
6b6b6807 L |
411 | /* Prefer the REX byte in encoding. */ |
412 | bfd_boolean rex_encoding; | |
413 | ||
b6f8c7c4 L |
414 | /* Disable instruction size optimization. */ |
415 | bfd_boolean no_optimize; | |
416 | ||
86fa6981 L |
417 | /* How to encode vector instructions. */ |
418 | enum | |
419 | { | |
420 | vex_encoding_default = 0, | |
42e04b36 | 421 | vex_encoding_vex, |
86fa6981 L |
422 | vex_encoding_vex3, |
423 | vex_encoding_evex | |
424 | } vec_encoding; | |
425 | ||
d5de92cf L |
426 | /* REP prefix. */ |
427 | const char *rep_prefix; | |
428 | ||
165de32a L |
429 | /* HLE prefix. */ |
430 | const char *hle_prefix; | |
42164a71 | 431 | |
7e8b059b L |
432 | /* Have BND prefix. */ |
433 | const char *bnd_prefix; | |
434 | ||
04ef582a L |
435 | /* Have NOTRACK prefix. */ |
436 | const char *notrack_prefix; | |
437 | ||
891edac4 | 438 | /* Error message. */ |
a65babc9 | 439 | enum i386_error error; |
252b5132 RH |
440 | }; |
441 | ||
442 | typedef struct _i386_insn i386_insn; | |
443 | ||
43234a1e L |
444 | /* Link RC type with corresponding string, that'll be looked for in |
445 | asm. */ | |
446 | struct RC_name | |
447 | { | |
448 | enum rc_type type; | |
449 | const char *name; | |
450 | unsigned int len; | |
451 | }; | |
452 | ||
453 | static const struct RC_name RC_NamesTable[] = | |
454 | { | |
455 | { rne, STRING_COMMA_LEN ("rn-sae") }, | |
456 | { rd, STRING_COMMA_LEN ("rd-sae") }, | |
457 | { ru, STRING_COMMA_LEN ("ru-sae") }, | |
458 | { rz, STRING_COMMA_LEN ("rz-sae") }, | |
459 | { saeonly, STRING_COMMA_LEN ("sae") }, | |
460 | }; | |
461 | ||
252b5132 RH |
462 | /* List of chars besides those in app.c:symbol_chars that can start an |
463 | operand. Used to prevent the scrubber eating vital white-space. */ | |
86fa6981 | 464 | const char extra_symbol_chars[] = "*%-([{}" |
252b5132 | 465 | #ifdef LEX_AT |
32137342 NC |
466 | "@" |
467 | #endif | |
468 | #ifdef LEX_QM | |
469 | "?" | |
252b5132 | 470 | #endif |
32137342 | 471 | ; |
252b5132 | 472 | |
29b0f896 AM |
473 | #if (defined (TE_I386AIX) \ |
474 | || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ | |
3896cfd5 | 475 | && !defined (TE_GNU) \ |
29b0f896 | 476 | && !defined (TE_LINUX) \ |
8d63c93e | 477 | && !defined (TE_NACL) \ |
29b0f896 | 478 | && !defined (TE_FreeBSD) \ |
5b806d27 | 479 | && !defined (TE_DragonFly) \ |
29b0f896 | 480 | && !defined (TE_NetBSD))) |
252b5132 | 481 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
482 | pre-processor is disabled, these aren't very useful. The option |
483 | --divide will remove '/' from this list. */ | |
484 | const char *i386_comment_chars = "#/"; | |
485 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 486 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 487 | |
b3b91714 AM |
488 | #else |
489 | const char *i386_comment_chars = "#"; | |
490 | #define PREFIX_SEPARATOR '/' | |
491 | #endif | |
492 | ||
252b5132 RH |
493 | /* This array holds the chars that only start a comment at the beginning of |
494 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
495 | .line and .file directives will appear in the pre-processed output. |
496 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 497 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
498 | #NO_APP at the beginning of its output. |
499 | Also note that comments started like this one will always work if | |
252b5132 | 500 | '/' isn't otherwise defined. */ |
b3b91714 | 501 | const char line_comment_chars[] = "#/"; |
252b5132 | 502 | |
63a0b638 | 503 | const char line_separator_chars[] = ";"; |
252b5132 | 504 | |
ce8a8b2f AM |
505 | /* Chars that can be used to separate mant from exp in floating point |
506 | nums. */ | |
252b5132 RH |
507 | const char EXP_CHARS[] = "eE"; |
508 | ||
ce8a8b2f AM |
509 | /* Chars that mean this number is a floating point constant |
510 | As in 0f12.456 | |
511 | or 0d1.2345e12. */ | |
252b5132 RH |
512 | const char FLT_CHARS[] = "fFdDxX"; |
513 | ||
ce8a8b2f | 514 | /* Tables for lexical analysis. */ |
252b5132 RH |
515 | static char mnemonic_chars[256]; |
516 | static char register_chars[256]; | |
517 | static char operand_chars[256]; | |
518 | static char identifier_chars[256]; | |
519 | static char digit_chars[256]; | |
520 | ||
ce8a8b2f | 521 | /* Lexical macros. */ |
252b5132 RH |
522 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
523 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
524 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
525 | #define is_space_char(x) ((x) == ' ') | |
526 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
527 | #define is_digit_char(x) (digit_chars[(unsigned char) x]) | |
528 | ||
0234cb7c | 529 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
530 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
531 | ||
532 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
533 | effect this we maintain a stack of saved characters that we've smashed | |
534 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 535 | assembler instruction). */ |
252b5132 | 536 | static char save_stack[32]; |
ce8a8b2f | 537 | static char *save_stack_p; |
252b5132 RH |
538 | #define END_STRING_AND_SAVE(s) \ |
539 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
540 | #define RESTORE_END_STRING(s) \ | |
541 | do { *(s) = *--save_stack_p; } while (0) | |
542 | ||
47926f60 | 543 | /* The instruction we're assembling. */ |
252b5132 RH |
544 | static i386_insn i; |
545 | ||
546 | /* Possible templates for current insn. */ | |
547 | static const templates *current_templates; | |
548 | ||
31b2323c L |
549 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
550 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
551 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 552 | |
47926f60 | 553 | /* Current operand we are working on. */ |
ee86248c | 554 | static int this_operand = -1; |
252b5132 | 555 | |
3e73aa7c JH |
556 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
557 | these. */ | |
558 | ||
559 | enum flag_code { | |
560 | CODE_32BIT, | |
561 | CODE_16BIT, | |
562 | CODE_64BIT }; | |
563 | ||
564 | static enum flag_code flag_code; | |
4fa24527 | 565 | static unsigned int object_64bit; |
862be3fb | 566 | static unsigned int disallow_64bit_reloc; |
3e73aa7c | 567 | static int use_rela_relocations = 0; |
e379e5f3 L |
568 | /* __tls_get_addr/___tls_get_addr symbol for TLS. */ |
569 | static const char *tls_get_addr; | |
3e73aa7c | 570 | |
7af8ed2d NC |
571 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
572 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ | |
573 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) | |
574 | ||
351f65ca L |
575 | /* The ELF ABI to use. */ |
576 | enum x86_elf_abi | |
577 | { | |
578 | I386_ABI, | |
7f56bc95 L |
579 | X86_64_ABI, |
580 | X86_64_X32_ABI | |
351f65ca L |
581 | }; |
582 | ||
583 | static enum x86_elf_abi x86_elf_abi = I386_ABI; | |
7af8ed2d | 584 | #endif |
351f65ca | 585 | |
167ad85b TG |
586 | #if defined (TE_PE) || defined (TE_PEP) |
587 | /* Use big object file format. */ | |
588 | static int use_big_obj = 0; | |
589 | #endif | |
590 | ||
8dcea932 L |
591 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
592 | /* 1 if generating code for a shared library. */ | |
593 | static int shared = 0; | |
594 | #endif | |
595 | ||
47926f60 KH |
596 | /* 1 for intel syntax, |
597 | 0 if att syntax. */ | |
598 | static int intel_syntax = 0; | |
252b5132 | 599 | |
4b5aaf5f L |
600 | static enum x86_64_isa |
601 | { | |
602 | amd64 = 1, /* AMD64 ISA. */ | |
603 | intel64 /* Intel64 ISA. */ | |
604 | } isa64; | |
e89c5eaa | 605 | |
1efbbeb4 L |
606 | /* 1 for intel mnemonic, |
607 | 0 if att mnemonic. */ | |
608 | static int intel_mnemonic = !SYSV386_COMPAT; | |
609 | ||
a60de03c JB |
610 | /* 1 if pseudo registers are permitted. */ |
611 | static int allow_pseudo_reg = 0; | |
612 | ||
47926f60 KH |
613 | /* 1 if register prefix % not required. */ |
614 | static int allow_naked_reg = 0; | |
252b5132 | 615 | |
33eaf5de | 616 | /* 1 if the assembler should add BND prefix for all control-transferring |
7e8b059b L |
617 | instructions supporting it, even if this prefix wasn't specified |
618 | explicitly. */ | |
619 | static int add_bnd_prefix = 0; | |
620 | ||
ba104c83 | 621 | /* 1 if pseudo index register, eiz/riz, is allowed . */ |
db51cc60 L |
622 | static int allow_index_reg = 0; |
623 | ||
d022bddd IT |
624 | /* 1 if the assembler should ignore LOCK prefix, even if it was |
625 | specified explicitly. */ | |
626 | static int omit_lock_prefix = 0; | |
627 | ||
e4e00185 AS |
628 | /* 1 if the assembler should encode lfence, mfence, and sfence as |
629 | "lock addl $0, (%{re}sp)". */ | |
630 | static int avoid_fence = 0; | |
631 | ||
ae531041 L |
632 | /* 1 if lfence should be inserted after every load. */ |
633 | static int lfence_after_load = 0; | |
634 | ||
635 | /* Non-zero if lfence should be inserted before indirect branch. */ | |
636 | static enum lfence_before_indirect_branch_kind | |
637 | { | |
638 | lfence_branch_none = 0, | |
639 | lfence_branch_register, | |
640 | lfence_branch_memory, | |
641 | lfence_branch_all | |
642 | } | |
643 | lfence_before_indirect_branch; | |
644 | ||
645 | /* Non-zero if lfence should be inserted before ret. */ | |
646 | static enum lfence_before_ret_kind | |
647 | { | |
648 | lfence_before_ret_none = 0, | |
649 | lfence_before_ret_not, | |
a09f656b | 650 | lfence_before_ret_or, |
651 | lfence_before_ret_shl | |
ae531041 L |
652 | } |
653 | lfence_before_ret; | |
654 | ||
655 | /* Types of previous instruction is .byte or prefix. */ | |
e379e5f3 L |
656 | static struct |
657 | { | |
658 | segT seg; | |
659 | const char *file; | |
660 | const char *name; | |
661 | unsigned int line; | |
662 | enum last_insn_kind | |
663 | { | |
664 | last_insn_other = 0, | |
665 | last_insn_directive, | |
666 | last_insn_prefix | |
667 | } kind; | |
668 | } last_insn; | |
669 | ||
0cb4071e L |
670 | /* 1 if the assembler should generate relax relocations. */ |
671 | ||
672 | static int generate_relax_relocations | |
673 | = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS; | |
674 | ||
7bab8ab5 | 675 | static enum check_kind |
daf50ae7 | 676 | { |
7bab8ab5 JB |
677 | check_none = 0, |
678 | check_warning, | |
679 | check_error | |
daf50ae7 | 680 | } |
7bab8ab5 | 681 | sse_check, operand_check = check_warning; |
daf50ae7 | 682 | |
e379e5f3 L |
683 | /* Non-zero if branches should be aligned within power of 2 boundary. */ |
684 | static int align_branch_power = 0; | |
685 | ||
686 | /* Types of branches to align. */ | |
687 | enum align_branch_kind | |
688 | { | |
689 | align_branch_none = 0, | |
690 | align_branch_jcc = 1, | |
691 | align_branch_fused = 2, | |
692 | align_branch_jmp = 3, | |
693 | align_branch_call = 4, | |
694 | align_branch_indirect = 5, | |
695 | align_branch_ret = 6 | |
696 | }; | |
697 | ||
698 | /* Type bits of branches to align. */ | |
699 | enum align_branch_bit | |
700 | { | |
701 | align_branch_jcc_bit = 1 << align_branch_jcc, | |
702 | align_branch_fused_bit = 1 << align_branch_fused, | |
703 | align_branch_jmp_bit = 1 << align_branch_jmp, | |
704 | align_branch_call_bit = 1 << align_branch_call, | |
705 | align_branch_indirect_bit = 1 << align_branch_indirect, | |
706 | align_branch_ret_bit = 1 << align_branch_ret | |
707 | }; | |
708 | ||
709 | static unsigned int align_branch = (align_branch_jcc_bit | |
710 | | align_branch_fused_bit | |
711 | | align_branch_jmp_bit); | |
712 | ||
79d72f45 HL |
713 | /* Types of condition jump used by macro-fusion. */ |
714 | enum mf_jcc_kind | |
715 | { | |
716 | mf_jcc_jo = 0, /* base opcode 0x70 */ | |
717 | mf_jcc_jc, /* base opcode 0x72 */ | |
718 | mf_jcc_je, /* base opcode 0x74 */ | |
719 | mf_jcc_jna, /* base opcode 0x76 */ | |
720 | mf_jcc_js, /* base opcode 0x78 */ | |
721 | mf_jcc_jp, /* base opcode 0x7a */ | |
722 | mf_jcc_jl, /* base opcode 0x7c */ | |
723 | mf_jcc_jle, /* base opcode 0x7e */ | |
724 | }; | |
725 | ||
726 | /* Types of compare flag-modifying insntructions used by macro-fusion. */ | |
727 | enum mf_cmp_kind | |
728 | { | |
729 | mf_cmp_test_and, /* test/cmp */ | |
730 | mf_cmp_alu_cmp, /* add/sub/cmp */ | |
731 | mf_cmp_incdec /* inc/dec */ | |
732 | }; | |
733 | ||
e379e5f3 L |
734 | /* The maximum padding size for fused jcc. CMP like instruction can |
735 | be 9 bytes and jcc can be 6 bytes. Leave room just in case for | |
736 | prefixes. */ | |
737 | #define MAX_FUSED_JCC_PADDING_SIZE 20 | |
738 | ||
739 | /* The maximum number of prefixes added for an instruction. */ | |
740 | static unsigned int align_branch_prefix_size = 5; | |
741 | ||
b6f8c7c4 L |
742 | /* Optimization: |
743 | 1. Clear the REX_W bit with register operand if possible. | |
744 | 2. Above plus use 128bit vector instruction to clear the full vector | |
745 | register. | |
746 | */ | |
747 | static int optimize = 0; | |
748 | ||
749 | /* Optimization: | |
750 | 1. Clear the REX_W bit with register operand if possible. | |
751 | 2. Above plus use 128bit vector instruction to clear the full vector | |
752 | register. | |
753 | 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to | |
754 | "testb $imm7,%r8". | |
755 | */ | |
756 | static int optimize_for_space = 0; | |
757 | ||
2ca3ace5 L |
758 | /* Register prefix used for error message. */ |
759 | static const char *register_prefix = "%"; | |
760 | ||
47926f60 KH |
761 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
762 | leave, push, and pop instructions so that gcc has the same stack | |
763 | frame as in 32 bit mode. */ | |
764 | static char stackop_size = '\0'; | |
eecb386c | 765 | |
12b55ccc L |
766 | /* Non-zero to optimize code alignment. */ |
767 | int optimize_align_code = 1; | |
768 | ||
47926f60 KH |
769 | /* Non-zero to quieten some warnings. */ |
770 | static int quiet_warnings = 0; | |
a38cf1db | 771 | |
47926f60 KH |
772 | /* CPU name. */ |
773 | static const char *cpu_arch_name = NULL; | |
6305a203 | 774 | static char *cpu_sub_arch_name = NULL; |
a38cf1db | 775 | |
47926f60 | 776 | /* CPU feature flags. */ |
40fb9820 L |
777 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
778 | ||
ccc9c027 L |
779 | /* If we have selected a cpu we are generating instructions for. */ |
780 | static int cpu_arch_tune_set = 0; | |
781 | ||
9103f4f4 | 782 | /* Cpu we are generating instructions for. */ |
fbf3f584 | 783 | enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; |
9103f4f4 L |
784 | |
785 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 786 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 787 | |
ccc9c027 | 788 | /* CPU instruction set architecture used. */ |
fbf3f584 | 789 | enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; |
ccc9c027 | 790 | |
9103f4f4 | 791 | /* CPU feature flags of instruction set architecture used. */ |
fbf3f584 | 792 | i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 793 | |
fddf5b5b AM |
794 | /* If set, conditional jumps are not automatically promoted to handle |
795 | larger than a byte offset. */ | |
796 | static unsigned int no_cond_jump_promotion = 0; | |
797 | ||
c0f3af97 L |
798 | /* Encode SSE instructions with VEX prefix. */ |
799 | static unsigned int sse2avx; | |
800 | ||
539f890d L |
801 | /* Encode scalar AVX instructions with specific vector length. */ |
802 | static enum | |
803 | { | |
804 | vex128 = 0, | |
805 | vex256 | |
806 | } avxscalar; | |
807 | ||
03751133 L |
808 | /* Encode VEX WIG instructions with specific vex.w. */ |
809 | static enum | |
810 | { | |
811 | vexw0 = 0, | |
812 | vexw1 | |
813 | } vexwig; | |
814 | ||
43234a1e L |
815 | /* Encode scalar EVEX LIG instructions with specific vector length. */ |
816 | static enum | |
817 | { | |
818 | evexl128 = 0, | |
819 | evexl256, | |
820 | evexl512 | |
821 | } evexlig; | |
822 | ||
823 | /* Encode EVEX WIG instructions with specific evex.w. */ | |
824 | static enum | |
825 | { | |
826 | evexw0 = 0, | |
827 | evexw1 | |
828 | } evexwig; | |
829 | ||
d3d3c6db IT |
830 | /* Value to encode in EVEX RC bits, for SAE-only instructions. */ |
831 | static enum rc_type evexrcig = rne; | |
832 | ||
29b0f896 | 833 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 834 | static symbolS *GOT_symbol; |
29b0f896 | 835 | |
a4447b93 RH |
836 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
837 | unsigned int x86_dwarf2_return_column; | |
838 | ||
839 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
840 | int x86_cie_data_alignment; | |
841 | ||
252b5132 | 842 | /* Interface to relax_segment. |
fddf5b5b AM |
843 | There are 3 major relax states for 386 jump insns because the |
844 | different types of jumps add different sizes to frags when we're | |
e379e5f3 L |
845 | figuring out what sort of jump to choose to reach a given label. |
846 | ||
847 | BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING are used to align | |
848 | branches which are handled by md_estimate_size_before_relax() and | |
849 | i386_generic_table_relax_frag(). */ | |
252b5132 | 850 | |
47926f60 | 851 | /* Types. */ |
93c2a809 AM |
852 | #define UNCOND_JUMP 0 |
853 | #define COND_JUMP 1 | |
854 | #define COND_JUMP86 2 | |
e379e5f3 L |
855 | #define BRANCH_PADDING 3 |
856 | #define BRANCH_PREFIX 4 | |
857 | #define FUSED_JCC_PADDING 5 | |
fddf5b5b | 858 | |
47926f60 | 859 | /* Sizes. */ |
252b5132 RH |
860 | #define CODE16 1 |
861 | #define SMALL 0 | |
29b0f896 | 862 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 863 | #define BIG 2 |
29b0f896 | 864 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
865 | |
866 | #ifndef INLINE | |
867 | #ifdef __GNUC__ | |
868 | #define INLINE __inline__ | |
869 | #else | |
870 | #define INLINE | |
871 | #endif | |
872 | #endif | |
873 | ||
fddf5b5b AM |
874 | #define ENCODE_RELAX_STATE(type, size) \ |
875 | ((relax_substateT) (((type) << 2) | (size))) | |
876 | #define TYPE_FROM_RELAX_STATE(s) \ | |
877 | ((s) >> 2) | |
878 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
879 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
880 | |
881 | /* This table is used by relax_frag to promote short jumps to long | |
882 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
883 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
884 | don't allow a short jump in a 32 bit code segment to be promoted to | |
885 | a 16 bit offset jump because it's slower (requires data size | |
886 | prefix), and doesn't work, unless the destination is in the bottom | |
887 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
888 | ||
889 | const relax_typeS md_relax_table[] = | |
890 | { | |
24eab124 AM |
891 | /* The fields are: |
892 | 1) most positive reach of this state, | |
893 | 2) most negative reach of this state, | |
93c2a809 | 894 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 895 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 896 | |
fddf5b5b | 897 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
898 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
899 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
900 | /* dword jmp adds 4 bytes to frag: | |
901 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 902 | {0, 0, 4, 0}, |
93c2a809 AM |
903 | /* word jmp adds 2 byte2 to frag: |
904 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
905 | {0, 0, 2, 0}, |
906 | ||
93c2a809 AM |
907 | /* COND_JUMP states. */ |
908 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
909 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
910 | /* dword conditionals adds 5 bytes to frag: | |
911 | 1 extra opcode byte, 4 displacement bytes. */ | |
912 | {0, 0, 5, 0}, | |
fddf5b5b | 913 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
914 | 1 extra opcode byte, 2 displacement bytes. */ |
915 | {0, 0, 3, 0}, | |
916 | ||
917 | /* COND_JUMP86 states. */ | |
918 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
919 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
920 | /* dword conditionals adds 5 bytes to frag: | |
921 | 1 extra opcode byte, 4 displacement bytes. */ | |
922 | {0, 0, 5, 0}, | |
923 | /* word conditionals add 4 bytes to frag: | |
924 | 1 displacement byte and a 3 byte long branch insn. */ | |
925 | {0, 0, 4, 0} | |
252b5132 RH |
926 | }; |
927 | ||
9103f4f4 L |
928 | static const arch_entry cpu_arch[] = |
929 | { | |
89507696 JB |
930 | /* Do not replace the first two entries - i386_target_format() |
931 | relies on them being there in this order. */ | |
8a2c8fef | 932 | { STRING_COMMA_LEN ("generic32"), PROCESSOR_GENERIC32, |
293f5f65 | 933 | CPU_GENERIC32_FLAGS, 0 }, |
8a2c8fef | 934 | { STRING_COMMA_LEN ("generic64"), PROCESSOR_GENERIC64, |
293f5f65 | 935 | CPU_GENERIC64_FLAGS, 0 }, |
8a2c8fef | 936 | { STRING_COMMA_LEN ("i8086"), PROCESSOR_UNKNOWN, |
293f5f65 | 937 | CPU_NONE_FLAGS, 0 }, |
8a2c8fef | 938 | { STRING_COMMA_LEN ("i186"), PROCESSOR_UNKNOWN, |
293f5f65 | 939 | CPU_I186_FLAGS, 0 }, |
8a2c8fef | 940 | { STRING_COMMA_LEN ("i286"), PROCESSOR_UNKNOWN, |
293f5f65 | 941 | CPU_I286_FLAGS, 0 }, |
8a2c8fef | 942 | { STRING_COMMA_LEN ("i386"), PROCESSOR_I386, |
293f5f65 | 943 | CPU_I386_FLAGS, 0 }, |
8a2c8fef | 944 | { STRING_COMMA_LEN ("i486"), PROCESSOR_I486, |
293f5f65 | 945 | CPU_I486_FLAGS, 0 }, |
8a2c8fef | 946 | { STRING_COMMA_LEN ("i586"), PROCESSOR_PENTIUM, |
293f5f65 | 947 | CPU_I586_FLAGS, 0 }, |
8a2c8fef | 948 | { STRING_COMMA_LEN ("i686"), PROCESSOR_PENTIUMPRO, |
293f5f65 | 949 | CPU_I686_FLAGS, 0 }, |
8a2c8fef | 950 | { STRING_COMMA_LEN ("pentium"), PROCESSOR_PENTIUM, |
293f5f65 | 951 | CPU_I586_FLAGS, 0 }, |
8a2c8fef | 952 | { STRING_COMMA_LEN ("pentiumpro"), PROCESSOR_PENTIUMPRO, |
293f5f65 | 953 | CPU_PENTIUMPRO_FLAGS, 0 }, |
8a2c8fef | 954 | { STRING_COMMA_LEN ("pentiumii"), PROCESSOR_PENTIUMPRO, |
293f5f65 | 955 | CPU_P2_FLAGS, 0 }, |
8a2c8fef | 956 | { STRING_COMMA_LEN ("pentiumiii"),PROCESSOR_PENTIUMPRO, |
293f5f65 | 957 | CPU_P3_FLAGS, 0 }, |
8a2c8fef | 958 | { STRING_COMMA_LEN ("pentium4"), PROCESSOR_PENTIUM4, |
293f5f65 | 959 | CPU_P4_FLAGS, 0 }, |
8a2c8fef | 960 | { STRING_COMMA_LEN ("prescott"), PROCESSOR_NOCONA, |
293f5f65 | 961 | CPU_CORE_FLAGS, 0 }, |
8a2c8fef | 962 | { STRING_COMMA_LEN ("nocona"), PROCESSOR_NOCONA, |
293f5f65 | 963 | CPU_NOCONA_FLAGS, 0 }, |
8a2c8fef | 964 | { STRING_COMMA_LEN ("yonah"), PROCESSOR_CORE, |
293f5f65 | 965 | CPU_CORE_FLAGS, 1 }, |
8a2c8fef | 966 | { STRING_COMMA_LEN ("core"), PROCESSOR_CORE, |
293f5f65 | 967 | CPU_CORE_FLAGS, 0 }, |
8a2c8fef | 968 | { STRING_COMMA_LEN ("merom"), PROCESSOR_CORE2, |
293f5f65 | 969 | CPU_CORE2_FLAGS, 1 }, |
8a2c8fef | 970 | { STRING_COMMA_LEN ("core2"), PROCESSOR_CORE2, |
293f5f65 | 971 | CPU_CORE2_FLAGS, 0 }, |
8a2c8fef | 972 | { STRING_COMMA_LEN ("corei7"), PROCESSOR_COREI7, |
293f5f65 | 973 | CPU_COREI7_FLAGS, 0 }, |
8a2c8fef | 974 | { STRING_COMMA_LEN ("l1om"), PROCESSOR_L1OM, |
293f5f65 | 975 | CPU_L1OM_FLAGS, 0 }, |
7a9068fe | 976 | { STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM, |
293f5f65 | 977 | CPU_K1OM_FLAGS, 0 }, |
81486035 | 978 | { STRING_COMMA_LEN ("iamcu"), PROCESSOR_IAMCU, |
293f5f65 | 979 | CPU_IAMCU_FLAGS, 0 }, |
8a2c8fef | 980 | { STRING_COMMA_LEN ("k6"), PROCESSOR_K6, |
293f5f65 | 981 | CPU_K6_FLAGS, 0 }, |
8a2c8fef | 982 | { STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6, |
293f5f65 | 983 | CPU_K6_2_FLAGS, 0 }, |
8a2c8fef | 984 | { STRING_COMMA_LEN ("athlon"), PROCESSOR_ATHLON, |
293f5f65 | 985 | CPU_ATHLON_FLAGS, 0 }, |
8a2c8fef | 986 | { STRING_COMMA_LEN ("sledgehammer"), PROCESSOR_K8, |
293f5f65 | 987 | CPU_K8_FLAGS, 1 }, |
8a2c8fef | 988 | { STRING_COMMA_LEN ("opteron"), PROCESSOR_K8, |
293f5f65 | 989 | CPU_K8_FLAGS, 0 }, |
8a2c8fef | 990 | { STRING_COMMA_LEN ("k8"), PROCESSOR_K8, |
293f5f65 | 991 | CPU_K8_FLAGS, 0 }, |
8a2c8fef | 992 | { STRING_COMMA_LEN ("amdfam10"), PROCESSOR_AMDFAM10, |
293f5f65 | 993 | CPU_AMDFAM10_FLAGS, 0 }, |
8aedb9fe | 994 | { STRING_COMMA_LEN ("bdver1"), PROCESSOR_BD, |
293f5f65 | 995 | CPU_BDVER1_FLAGS, 0 }, |
8aedb9fe | 996 | { STRING_COMMA_LEN ("bdver2"), PROCESSOR_BD, |
293f5f65 | 997 | CPU_BDVER2_FLAGS, 0 }, |
5e5c50d3 | 998 | { STRING_COMMA_LEN ("bdver3"), PROCESSOR_BD, |
293f5f65 | 999 | CPU_BDVER3_FLAGS, 0 }, |
c7b0bd56 | 1000 | { STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD, |
293f5f65 | 1001 | CPU_BDVER4_FLAGS, 0 }, |
029f3522 | 1002 | { STRING_COMMA_LEN ("znver1"), PROCESSOR_ZNVER, |
293f5f65 | 1003 | CPU_ZNVER1_FLAGS, 0 }, |
a9660a6f AP |
1004 | { STRING_COMMA_LEN ("znver2"), PROCESSOR_ZNVER, |
1005 | CPU_ZNVER2_FLAGS, 0 }, | |
7b458c12 | 1006 | { STRING_COMMA_LEN ("btver1"), PROCESSOR_BT, |
293f5f65 | 1007 | CPU_BTVER1_FLAGS, 0 }, |
7b458c12 | 1008 | { STRING_COMMA_LEN ("btver2"), PROCESSOR_BT, |
293f5f65 | 1009 | CPU_BTVER2_FLAGS, 0 }, |
8a2c8fef | 1010 | { STRING_COMMA_LEN (".8087"), PROCESSOR_UNKNOWN, |
293f5f65 | 1011 | CPU_8087_FLAGS, 0 }, |
8a2c8fef | 1012 | { STRING_COMMA_LEN (".287"), PROCESSOR_UNKNOWN, |
293f5f65 | 1013 | CPU_287_FLAGS, 0 }, |
8a2c8fef | 1014 | { STRING_COMMA_LEN (".387"), PROCESSOR_UNKNOWN, |
293f5f65 | 1015 | CPU_387_FLAGS, 0 }, |
1848e567 L |
1016 | { STRING_COMMA_LEN (".687"), PROCESSOR_UNKNOWN, |
1017 | CPU_687_FLAGS, 0 }, | |
d871f3f4 L |
1018 | { STRING_COMMA_LEN (".cmov"), PROCESSOR_UNKNOWN, |
1019 | CPU_CMOV_FLAGS, 0 }, | |
1020 | { STRING_COMMA_LEN (".fxsr"), PROCESSOR_UNKNOWN, | |
1021 | CPU_FXSR_FLAGS, 0 }, | |
8a2c8fef | 1022 | { STRING_COMMA_LEN (".mmx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1023 | CPU_MMX_FLAGS, 0 }, |
8a2c8fef | 1024 | { STRING_COMMA_LEN (".sse"), PROCESSOR_UNKNOWN, |
293f5f65 | 1025 | CPU_SSE_FLAGS, 0 }, |
8a2c8fef | 1026 | { STRING_COMMA_LEN (".sse2"), PROCESSOR_UNKNOWN, |
293f5f65 | 1027 | CPU_SSE2_FLAGS, 0 }, |
8a2c8fef | 1028 | { STRING_COMMA_LEN (".sse3"), PROCESSOR_UNKNOWN, |
293f5f65 | 1029 | CPU_SSE3_FLAGS, 0 }, |
af5c13b0 L |
1030 | { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN, |
1031 | CPU_SSE4A_FLAGS, 0 }, | |
8a2c8fef | 1032 | { STRING_COMMA_LEN (".ssse3"), PROCESSOR_UNKNOWN, |
293f5f65 | 1033 | CPU_SSSE3_FLAGS, 0 }, |
8a2c8fef | 1034 | { STRING_COMMA_LEN (".sse4.1"), PROCESSOR_UNKNOWN, |
293f5f65 | 1035 | CPU_SSE4_1_FLAGS, 0 }, |
8a2c8fef | 1036 | { STRING_COMMA_LEN (".sse4.2"), PROCESSOR_UNKNOWN, |
293f5f65 | 1037 | CPU_SSE4_2_FLAGS, 0 }, |
8a2c8fef | 1038 | { STRING_COMMA_LEN (".sse4"), PROCESSOR_UNKNOWN, |
293f5f65 | 1039 | CPU_SSE4_2_FLAGS, 0 }, |
8a2c8fef | 1040 | { STRING_COMMA_LEN (".avx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1041 | CPU_AVX_FLAGS, 0 }, |
6c30d220 | 1042 | { STRING_COMMA_LEN (".avx2"), PROCESSOR_UNKNOWN, |
293f5f65 | 1043 | CPU_AVX2_FLAGS, 0 }, |
43234a1e | 1044 | { STRING_COMMA_LEN (".avx512f"), PROCESSOR_UNKNOWN, |
293f5f65 | 1045 | CPU_AVX512F_FLAGS, 0 }, |
43234a1e | 1046 | { STRING_COMMA_LEN (".avx512cd"), PROCESSOR_UNKNOWN, |
293f5f65 | 1047 | CPU_AVX512CD_FLAGS, 0 }, |
43234a1e | 1048 | { STRING_COMMA_LEN (".avx512er"), PROCESSOR_UNKNOWN, |
293f5f65 | 1049 | CPU_AVX512ER_FLAGS, 0 }, |
43234a1e | 1050 | { STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN, |
293f5f65 | 1051 | CPU_AVX512PF_FLAGS, 0 }, |
1dfc6506 | 1052 | { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN, |
293f5f65 | 1053 | CPU_AVX512DQ_FLAGS, 0 }, |
1dfc6506 | 1054 | { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN, |
293f5f65 | 1055 | CPU_AVX512BW_FLAGS, 0 }, |
1dfc6506 | 1056 | { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN, |
293f5f65 | 1057 | CPU_AVX512VL_FLAGS, 0 }, |
8a2c8fef | 1058 | { STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1059 | CPU_VMX_FLAGS, 0 }, |
8729a6f6 | 1060 | { STRING_COMMA_LEN (".vmfunc"), PROCESSOR_UNKNOWN, |
293f5f65 | 1061 | CPU_VMFUNC_FLAGS, 0 }, |
8a2c8fef | 1062 | { STRING_COMMA_LEN (".smx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1063 | CPU_SMX_FLAGS, 0 }, |
8a2c8fef | 1064 | { STRING_COMMA_LEN (".xsave"), PROCESSOR_UNKNOWN, |
293f5f65 | 1065 | CPU_XSAVE_FLAGS, 0 }, |
c7b8aa3a | 1066 | { STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN, |
293f5f65 | 1067 | CPU_XSAVEOPT_FLAGS, 0 }, |
1dfc6506 | 1068 | { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN, |
293f5f65 | 1069 | CPU_XSAVEC_FLAGS, 0 }, |
1dfc6506 | 1070 | { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN, |
293f5f65 | 1071 | CPU_XSAVES_FLAGS, 0 }, |
8a2c8fef | 1072 | { STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN, |
293f5f65 | 1073 | CPU_AES_FLAGS, 0 }, |
8a2c8fef | 1074 | { STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN, |
293f5f65 | 1075 | CPU_PCLMUL_FLAGS, 0 }, |
8a2c8fef | 1076 | { STRING_COMMA_LEN (".clmul"), PROCESSOR_UNKNOWN, |
293f5f65 | 1077 | CPU_PCLMUL_FLAGS, 1 }, |
c7b8aa3a | 1078 | { STRING_COMMA_LEN (".fsgsbase"), PROCESSOR_UNKNOWN, |
293f5f65 | 1079 | CPU_FSGSBASE_FLAGS, 0 }, |
c7b8aa3a | 1080 | { STRING_COMMA_LEN (".rdrnd"), PROCESSOR_UNKNOWN, |
293f5f65 | 1081 | CPU_RDRND_FLAGS, 0 }, |
c7b8aa3a | 1082 | { STRING_COMMA_LEN (".f16c"), PROCESSOR_UNKNOWN, |
293f5f65 | 1083 | CPU_F16C_FLAGS, 0 }, |
6c30d220 | 1084 | { STRING_COMMA_LEN (".bmi2"), PROCESSOR_UNKNOWN, |
293f5f65 | 1085 | CPU_BMI2_FLAGS, 0 }, |
8a2c8fef | 1086 | { STRING_COMMA_LEN (".fma"), PROCESSOR_UNKNOWN, |
293f5f65 | 1087 | CPU_FMA_FLAGS, 0 }, |
8a2c8fef | 1088 | { STRING_COMMA_LEN (".fma4"), PROCESSOR_UNKNOWN, |
293f5f65 | 1089 | CPU_FMA4_FLAGS, 0 }, |
8a2c8fef | 1090 | { STRING_COMMA_LEN (".xop"), PROCESSOR_UNKNOWN, |
293f5f65 | 1091 | CPU_XOP_FLAGS, 0 }, |
8a2c8fef | 1092 | { STRING_COMMA_LEN (".lwp"), PROCESSOR_UNKNOWN, |
293f5f65 | 1093 | CPU_LWP_FLAGS, 0 }, |
8a2c8fef | 1094 | { STRING_COMMA_LEN (".movbe"), PROCESSOR_UNKNOWN, |
293f5f65 | 1095 | CPU_MOVBE_FLAGS, 0 }, |
60aa667e | 1096 | { STRING_COMMA_LEN (".cx16"), PROCESSOR_UNKNOWN, |
293f5f65 | 1097 | CPU_CX16_FLAGS, 0 }, |
8a2c8fef | 1098 | { STRING_COMMA_LEN (".ept"), PROCESSOR_UNKNOWN, |
293f5f65 | 1099 | CPU_EPT_FLAGS, 0 }, |
6c30d220 | 1100 | { STRING_COMMA_LEN (".lzcnt"), PROCESSOR_UNKNOWN, |
293f5f65 | 1101 | CPU_LZCNT_FLAGS, 0 }, |
272a84b1 L |
1102 | { STRING_COMMA_LEN (".popcnt"), PROCESSOR_UNKNOWN, |
1103 | CPU_POPCNT_FLAGS, 0 }, | |
42164a71 | 1104 | { STRING_COMMA_LEN (".hle"), PROCESSOR_UNKNOWN, |
293f5f65 | 1105 | CPU_HLE_FLAGS, 0 }, |
42164a71 | 1106 | { STRING_COMMA_LEN (".rtm"), PROCESSOR_UNKNOWN, |
293f5f65 | 1107 | CPU_RTM_FLAGS, 0 }, |
6c30d220 | 1108 | { STRING_COMMA_LEN (".invpcid"), PROCESSOR_UNKNOWN, |
293f5f65 | 1109 | CPU_INVPCID_FLAGS, 0 }, |
8a2c8fef | 1110 | { STRING_COMMA_LEN (".clflush"), PROCESSOR_UNKNOWN, |
293f5f65 | 1111 | CPU_CLFLUSH_FLAGS, 0 }, |
22109423 | 1112 | { STRING_COMMA_LEN (".nop"), PROCESSOR_UNKNOWN, |
293f5f65 | 1113 | CPU_NOP_FLAGS, 0 }, |
8a2c8fef | 1114 | { STRING_COMMA_LEN (".syscall"), PROCESSOR_UNKNOWN, |
293f5f65 | 1115 | CPU_SYSCALL_FLAGS, 0 }, |
8a2c8fef | 1116 | { STRING_COMMA_LEN (".rdtscp"), PROCESSOR_UNKNOWN, |
293f5f65 | 1117 | CPU_RDTSCP_FLAGS, 0 }, |
8a2c8fef | 1118 | { STRING_COMMA_LEN (".3dnow"), PROCESSOR_UNKNOWN, |
293f5f65 | 1119 | CPU_3DNOW_FLAGS, 0 }, |
8a2c8fef | 1120 | { STRING_COMMA_LEN (".3dnowa"), PROCESSOR_UNKNOWN, |
293f5f65 | 1121 | CPU_3DNOWA_FLAGS, 0 }, |
8a2c8fef | 1122 | { STRING_COMMA_LEN (".padlock"), PROCESSOR_UNKNOWN, |
293f5f65 | 1123 | CPU_PADLOCK_FLAGS, 0 }, |
8a2c8fef | 1124 | { STRING_COMMA_LEN (".pacifica"), PROCESSOR_UNKNOWN, |
293f5f65 | 1125 | CPU_SVME_FLAGS, 1 }, |
8a2c8fef | 1126 | { STRING_COMMA_LEN (".svme"), PROCESSOR_UNKNOWN, |
293f5f65 | 1127 | CPU_SVME_FLAGS, 0 }, |
8a2c8fef | 1128 | { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN, |
293f5f65 | 1129 | CPU_SSE4A_FLAGS, 0 }, |
8a2c8fef | 1130 | { STRING_COMMA_LEN (".abm"), PROCESSOR_UNKNOWN, |
293f5f65 | 1131 | CPU_ABM_FLAGS, 0 }, |
87973e9f | 1132 | { STRING_COMMA_LEN (".bmi"), PROCESSOR_UNKNOWN, |
293f5f65 | 1133 | CPU_BMI_FLAGS, 0 }, |
2a2a0f38 | 1134 | { STRING_COMMA_LEN (".tbm"), PROCESSOR_UNKNOWN, |
293f5f65 | 1135 | CPU_TBM_FLAGS, 0 }, |
e2e1fcde | 1136 | { STRING_COMMA_LEN (".adx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1137 | CPU_ADX_FLAGS, 0 }, |
e2e1fcde | 1138 | { STRING_COMMA_LEN (".rdseed"), PROCESSOR_UNKNOWN, |
293f5f65 | 1139 | CPU_RDSEED_FLAGS, 0 }, |
e2e1fcde | 1140 | { STRING_COMMA_LEN (".prfchw"), PROCESSOR_UNKNOWN, |
293f5f65 | 1141 | CPU_PRFCHW_FLAGS, 0 }, |
5c111e37 | 1142 | { STRING_COMMA_LEN (".smap"), PROCESSOR_UNKNOWN, |
293f5f65 | 1143 | CPU_SMAP_FLAGS, 0 }, |
7e8b059b | 1144 | { STRING_COMMA_LEN (".mpx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1145 | CPU_MPX_FLAGS, 0 }, |
a0046408 | 1146 | { STRING_COMMA_LEN (".sha"), PROCESSOR_UNKNOWN, |
293f5f65 | 1147 | CPU_SHA_FLAGS, 0 }, |
963f3586 | 1148 | { STRING_COMMA_LEN (".clflushopt"), PROCESSOR_UNKNOWN, |
293f5f65 | 1149 | CPU_CLFLUSHOPT_FLAGS, 0 }, |
dcf893b5 | 1150 | { STRING_COMMA_LEN (".prefetchwt1"), PROCESSOR_UNKNOWN, |
293f5f65 | 1151 | CPU_PREFETCHWT1_FLAGS, 0 }, |
2cf200a4 | 1152 | { STRING_COMMA_LEN (".se1"), PROCESSOR_UNKNOWN, |
293f5f65 | 1153 | CPU_SE1_FLAGS, 0 }, |
c5e7287a | 1154 | { STRING_COMMA_LEN (".clwb"), PROCESSOR_UNKNOWN, |
293f5f65 | 1155 | CPU_CLWB_FLAGS, 0 }, |
2cc1b5aa | 1156 | { STRING_COMMA_LEN (".avx512ifma"), PROCESSOR_UNKNOWN, |
293f5f65 | 1157 | CPU_AVX512IFMA_FLAGS, 0 }, |
14f195c9 | 1158 | { STRING_COMMA_LEN (".avx512vbmi"), PROCESSOR_UNKNOWN, |
293f5f65 | 1159 | CPU_AVX512VBMI_FLAGS, 0 }, |
920d2ddc IT |
1160 | { STRING_COMMA_LEN (".avx512_4fmaps"), PROCESSOR_UNKNOWN, |
1161 | CPU_AVX512_4FMAPS_FLAGS, 0 }, | |
47acf0bd IT |
1162 | { STRING_COMMA_LEN (".avx512_4vnniw"), PROCESSOR_UNKNOWN, |
1163 | CPU_AVX512_4VNNIW_FLAGS, 0 }, | |
620214f7 IT |
1164 | { STRING_COMMA_LEN (".avx512_vpopcntdq"), PROCESSOR_UNKNOWN, |
1165 | CPU_AVX512_VPOPCNTDQ_FLAGS, 0 }, | |
53467f57 IT |
1166 | { STRING_COMMA_LEN (".avx512_vbmi2"), PROCESSOR_UNKNOWN, |
1167 | CPU_AVX512_VBMI2_FLAGS, 0 }, | |
8cfcb765 IT |
1168 | { STRING_COMMA_LEN (".avx512_vnni"), PROCESSOR_UNKNOWN, |
1169 | CPU_AVX512_VNNI_FLAGS, 0 }, | |
ee6872be IT |
1170 | { STRING_COMMA_LEN (".avx512_bitalg"), PROCESSOR_UNKNOWN, |
1171 | CPU_AVX512_BITALG_FLAGS, 0 }, | |
029f3522 | 1172 | { STRING_COMMA_LEN (".clzero"), PROCESSOR_UNKNOWN, |
293f5f65 | 1173 | CPU_CLZERO_FLAGS, 0 }, |
9916071f | 1174 | { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN, |
293f5f65 | 1175 | CPU_MWAITX_FLAGS, 0 }, |
8eab4136 | 1176 | { STRING_COMMA_LEN (".ospke"), PROCESSOR_UNKNOWN, |
293f5f65 | 1177 | CPU_OSPKE_FLAGS, 0 }, |
8bc52696 | 1178 | { STRING_COMMA_LEN (".rdpid"), PROCESSOR_UNKNOWN, |
293f5f65 | 1179 | CPU_RDPID_FLAGS, 0 }, |
6b40c462 L |
1180 | { STRING_COMMA_LEN (".ptwrite"), PROCESSOR_UNKNOWN, |
1181 | CPU_PTWRITE_FLAGS, 0 }, | |
d777820b IT |
1182 | { STRING_COMMA_LEN (".ibt"), PROCESSOR_UNKNOWN, |
1183 | CPU_IBT_FLAGS, 0 }, | |
1184 | { STRING_COMMA_LEN (".shstk"), PROCESSOR_UNKNOWN, | |
1185 | CPU_SHSTK_FLAGS, 0 }, | |
48521003 IT |
1186 | { STRING_COMMA_LEN (".gfni"), PROCESSOR_UNKNOWN, |
1187 | CPU_GFNI_FLAGS, 0 }, | |
8dcf1fad IT |
1188 | { STRING_COMMA_LEN (".vaes"), PROCESSOR_UNKNOWN, |
1189 | CPU_VAES_FLAGS, 0 }, | |
ff1982d5 IT |
1190 | { STRING_COMMA_LEN (".vpclmulqdq"), PROCESSOR_UNKNOWN, |
1191 | CPU_VPCLMULQDQ_FLAGS, 0 }, | |
3233d7d0 IT |
1192 | { STRING_COMMA_LEN (".wbnoinvd"), PROCESSOR_UNKNOWN, |
1193 | CPU_WBNOINVD_FLAGS, 0 }, | |
be3a8dca IT |
1194 | { STRING_COMMA_LEN (".pconfig"), PROCESSOR_UNKNOWN, |
1195 | CPU_PCONFIG_FLAGS, 0 }, | |
de89d0a3 IT |
1196 | { STRING_COMMA_LEN (".waitpkg"), PROCESSOR_UNKNOWN, |
1197 | CPU_WAITPKG_FLAGS, 0 }, | |
c48935d7 IT |
1198 | { STRING_COMMA_LEN (".cldemote"), PROCESSOR_UNKNOWN, |
1199 | CPU_CLDEMOTE_FLAGS, 0 }, | |
c0a30a9f L |
1200 | { STRING_COMMA_LEN (".movdiri"), PROCESSOR_UNKNOWN, |
1201 | CPU_MOVDIRI_FLAGS, 0 }, | |
1202 | { STRING_COMMA_LEN (".movdir64b"), PROCESSOR_UNKNOWN, | |
1203 | CPU_MOVDIR64B_FLAGS, 0 }, | |
d6aab7a1 XG |
1204 | { STRING_COMMA_LEN (".avx512_bf16"), PROCESSOR_UNKNOWN, |
1205 | CPU_AVX512_BF16_FLAGS, 0 }, | |
9186c494 L |
1206 | { STRING_COMMA_LEN (".avx512_vp2intersect"), PROCESSOR_UNKNOWN, |
1207 | CPU_AVX512_VP2INTERSECT_FLAGS, 0 }, | |
dd455cf5 L |
1208 | { STRING_COMMA_LEN (".enqcmd"), PROCESSOR_UNKNOWN, |
1209 | CPU_ENQCMD_FLAGS, 0 }, | |
4b27d27c L |
1210 | { STRING_COMMA_LEN (".serialize"), PROCESSOR_UNKNOWN, |
1211 | CPU_SERIALIZE_FLAGS, 0 }, | |
142861df JB |
1212 | { STRING_COMMA_LEN (".rdpru"), PROCESSOR_UNKNOWN, |
1213 | CPU_RDPRU_FLAGS, 0 }, | |
1214 | { STRING_COMMA_LEN (".mcommit"), PROCESSOR_UNKNOWN, | |
1215 | CPU_MCOMMIT_FLAGS, 0 }, | |
a847e322 JB |
1216 | { STRING_COMMA_LEN (".sev_es"), PROCESSOR_UNKNOWN, |
1217 | CPU_SEV_ES_FLAGS, 0 }, | |
bb651e8b CL |
1218 | { STRING_COMMA_LEN (".tsxldtrk"), PROCESSOR_UNKNOWN, |
1219 | CPU_TSXLDTRK_FLAGS, 0 }, | |
293f5f65 L |
1220 | }; |
1221 | ||
1222 | static const noarch_entry cpu_noarch[] = | |
1223 | { | |
1224 | { STRING_COMMA_LEN ("no87"), CPU_ANY_X87_FLAGS }, | |
1848e567 L |
1225 | { STRING_COMMA_LEN ("no287"), CPU_ANY_287_FLAGS }, |
1226 | { STRING_COMMA_LEN ("no387"), CPU_ANY_387_FLAGS }, | |
1227 | { STRING_COMMA_LEN ("no687"), CPU_ANY_687_FLAGS }, | |
d871f3f4 L |
1228 | { STRING_COMMA_LEN ("nocmov"), CPU_ANY_CMOV_FLAGS }, |
1229 | { STRING_COMMA_LEN ("nofxsr"), CPU_ANY_FXSR_FLAGS }, | |
293f5f65 L |
1230 | { STRING_COMMA_LEN ("nommx"), CPU_ANY_MMX_FLAGS }, |
1231 | { STRING_COMMA_LEN ("nosse"), CPU_ANY_SSE_FLAGS }, | |
1848e567 L |
1232 | { STRING_COMMA_LEN ("nosse2"), CPU_ANY_SSE2_FLAGS }, |
1233 | { STRING_COMMA_LEN ("nosse3"), CPU_ANY_SSE3_FLAGS }, | |
af5c13b0 | 1234 | { STRING_COMMA_LEN ("nosse4a"), CPU_ANY_SSE4A_FLAGS }, |
1848e567 L |
1235 | { STRING_COMMA_LEN ("nossse3"), CPU_ANY_SSSE3_FLAGS }, |
1236 | { STRING_COMMA_LEN ("nosse4.1"), CPU_ANY_SSE4_1_FLAGS }, | |
1237 | { STRING_COMMA_LEN ("nosse4.2"), CPU_ANY_SSE4_2_FLAGS }, | |
af5c13b0 | 1238 | { STRING_COMMA_LEN ("nosse4"), CPU_ANY_SSE4_1_FLAGS }, |
293f5f65 | 1239 | { STRING_COMMA_LEN ("noavx"), CPU_ANY_AVX_FLAGS }, |
1848e567 | 1240 | { STRING_COMMA_LEN ("noavx2"), CPU_ANY_AVX2_FLAGS }, |
144b71e2 L |
1241 | { STRING_COMMA_LEN ("noavx512f"), CPU_ANY_AVX512F_FLAGS }, |
1242 | { STRING_COMMA_LEN ("noavx512cd"), CPU_ANY_AVX512CD_FLAGS }, | |
1243 | { STRING_COMMA_LEN ("noavx512er"), CPU_ANY_AVX512ER_FLAGS }, | |
1244 | { STRING_COMMA_LEN ("noavx512pf"), CPU_ANY_AVX512PF_FLAGS }, | |
1245 | { STRING_COMMA_LEN ("noavx512dq"), CPU_ANY_AVX512DQ_FLAGS }, | |
1246 | { STRING_COMMA_LEN ("noavx512bw"), CPU_ANY_AVX512BW_FLAGS }, | |
1247 | { STRING_COMMA_LEN ("noavx512vl"), CPU_ANY_AVX512VL_FLAGS }, | |
1248 | { STRING_COMMA_LEN ("noavx512ifma"), CPU_ANY_AVX512IFMA_FLAGS }, | |
1249 | { STRING_COMMA_LEN ("noavx512vbmi"), CPU_ANY_AVX512VBMI_FLAGS }, | |
920d2ddc | 1250 | { STRING_COMMA_LEN ("noavx512_4fmaps"), CPU_ANY_AVX512_4FMAPS_FLAGS }, |
47acf0bd | 1251 | { STRING_COMMA_LEN ("noavx512_4vnniw"), CPU_ANY_AVX512_4VNNIW_FLAGS }, |
620214f7 | 1252 | { STRING_COMMA_LEN ("noavx512_vpopcntdq"), CPU_ANY_AVX512_VPOPCNTDQ_FLAGS }, |
53467f57 | 1253 | { STRING_COMMA_LEN ("noavx512_vbmi2"), CPU_ANY_AVX512_VBMI2_FLAGS }, |
8cfcb765 | 1254 | { STRING_COMMA_LEN ("noavx512_vnni"), CPU_ANY_AVX512_VNNI_FLAGS }, |
ee6872be | 1255 | { STRING_COMMA_LEN ("noavx512_bitalg"), CPU_ANY_AVX512_BITALG_FLAGS }, |
d777820b IT |
1256 | { STRING_COMMA_LEN ("noibt"), CPU_ANY_IBT_FLAGS }, |
1257 | { STRING_COMMA_LEN ("noshstk"), CPU_ANY_SHSTK_FLAGS }, | |
c0a30a9f L |
1258 | { STRING_COMMA_LEN ("nomovdiri"), CPU_ANY_MOVDIRI_FLAGS }, |
1259 | { STRING_COMMA_LEN ("nomovdir64b"), CPU_ANY_MOVDIR64B_FLAGS }, | |
d6aab7a1 | 1260 | { STRING_COMMA_LEN ("noavx512_bf16"), CPU_ANY_AVX512_BF16_FLAGS }, |
9186c494 | 1261 | { STRING_COMMA_LEN ("noavx512_vp2intersect"), CPU_ANY_SHSTK_FLAGS }, |
dd455cf5 | 1262 | { STRING_COMMA_LEN ("noenqcmd"), CPU_ANY_ENQCMD_FLAGS }, |
4b27d27c | 1263 | { STRING_COMMA_LEN ("noserialize"), CPU_ANY_SERIALIZE_FLAGS }, |
bb651e8b | 1264 | { STRING_COMMA_LEN ("notsxldtrk"), CPU_ANY_TSXLDTRK_FLAGS }, |
e413e4e9 AM |
1265 | }; |
1266 | ||
704209c0 | 1267 | #ifdef I386COFF |
a6c24e68 NC |
1268 | /* Like s_lcomm_internal in gas/read.c but the alignment string |
1269 | is allowed to be optional. */ | |
1270 | ||
1271 | static symbolS * | |
1272 | pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size) | |
1273 | { | |
1274 | addressT align = 0; | |
1275 | ||
1276 | SKIP_WHITESPACE (); | |
1277 | ||
7ab9ffdd | 1278 | if (needs_align |
a6c24e68 NC |
1279 | && *input_line_pointer == ',') |
1280 | { | |
1281 | align = parse_align (needs_align - 1); | |
7ab9ffdd | 1282 | |
a6c24e68 NC |
1283 | if (align == (addressT) -1) |
1284 | return NULL; | |
1285 | } | |
1286 | else | |
1287 | { | |
1288 | if (size >= 8) | |
1289 | align = 3; | |
1290 | else if (size >= 4) | |
1291 | align = 2; | |
1292 | else if (size >= 2) | |
1293 | align = 1; | |
1294 | else | |
1295 | align = 0; | |
1296 | } | |
1297 | ||
1298 | bss_alloc (symbolP, size, align); | |
1299 | return symbolP; | |
1300 | } | |
1301 | ||
704209c0 | 1302 | static void |
a6c24e68 NC |
1303 | pe_lcomm (int needs_align) |
1304 | { | |
1305 | s_comm_internal (needs_align * 2, pe_lcomm_internal); | |
1306 | } | |
704209c0 | 1307 | #endif |
a6c24e68 | 1308 | |
29b0f896 AM |
1309 | const pseudo_typeS md_pseudo_table[] = |
1310 | { | |
1311 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
1312 | {"align", s_align_bytes, 0}, | |
1313 | #else | |
1314 | {"align", s_align_ptwo, 0}, | |
1315 | #endif | |
1316 | {"arch", set_cpu_arch, 0}, | |
1317 | #ifndef I386COFF | |
1318 | {"bss", s_bss, 0}, | |
a6c24e68 NC |
1319 | #else |
1320 | {"lcomm", pe_lcomm, 1}, | |
29b0f896 AM |
1321 | #endif |
1322 | {"ffloat", float_cons, 'f'}, | |
1323 | {"dfloat", float_cons, 'd'}, | |
1324 | {"tfloat", float_cons, 'x'}, | |
1325 | {"value", cons, 2}, | |
d182319b | 1326 | {"slong", signed_cons, 4}, |
29b0f896 AM |
1327 | {"noopt", s_ignore, 0}, |
1328 | {"optim", s_ignore, 0}, | |
1329 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
1330 | {"code16", set_code_flag, CODE_16BIT}, | |
1331 | {"code32", set_code_flag, CODE_32BIT}, | |
da5f19a2 | 1332 | #ifdef BFD64 |
29b0f896 | 1333 | {"code64", set_code_flag, CODE_64BIT}, |
da5f19a2 | 1334 | #endif |
29b0f896 AM |
1335 | {"intel_syntax", set_intel_syntax, 1}, |
1336 | {"att_syntax", set_intel_syntax, 0}, | |
1efbbeb4 L |
1337 | {"intel_mnemonic", set_intel_mnemonic, 1}, |
1338 | {"att_mnemonic", set_intel_mnemonic, 0}, | |
db51cc60 L |
1339 | {"allow_index_reg", set_allow_index_reg, 1}, |
1340 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
7bab8ab5 JB |
1341 | {"sse_check", set_check, 0}, |
1342 | {"operand_check", set_check, 1}, | |
3b22753a L |
1343 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1344 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 1345 | #else |
68d20676 | 1346 | {"file", dwarf2_directive_file, 0}, |
07a53e5c RH |
1347 | {"loc", dwarf2_directive_loc, 0}, |
1348 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 1349 | #endif |
6482c264 NC |
1350 | #ifdef TE_PE |
1351 | {"secrel32", pe_directive_secrel, 0}, | |
1352 | #endif | |
29b0f896 AM |
1353 | {0, 0, 0} |
1354 | }; | |
1355 | ||
1356 | /* For interface with expression (). */ | |
1357 | extern char *input_line_pointer; | |
1358 | ||
1359 | /* Hash table for instruction mnemonic lookup. */ | |
1360 | static struct hash_control *op_hash; | |
1361 | ||
1362 | /* Hash table for register lookup. */ | |
1363 | static struct hash_control *reg_hash; | |
1364 | \f | |
ce8a8b2f AM |
1365 | /* Various efficient no-op patterns for aligning code labels. |
1366 | Note: Don't try to assemble the instructions in the comments. | |
1367 | 0L and 0w are not legal. */ | |
62a02d25 L |
1368 | static const unsigned char f32_1[] = |
1369 | {0x90}; /* nop */ | |
1370 | static const unsigned char f32_2[] = | |
1371 | {0x66,0x90}; /* xchg %ax,%ax */ | |
1372 | static const unsigned char f32_3[] = | |
1373 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
1374 | static const unsigned char f32_4[] = | |
1375 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
62a02d25 L |
1376 | static const unsigned char f32_6[] = |
1377 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
1378 | static const unsigned char f32_7[] = | |
1379 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
62a02d25 | 1380 | static const unsigned char f16_3[] = |
3ae729d5 | 1381 | {0x8d,0x74,0x00}; /* lea 0(%si),%si */ |
62a02d25 | 1382 | static const unsigned char f16_4[] = |
3ae729d5 L |
1383 | {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */ |
1384 | static const unsigned char jump_disp8[] = | |
1385 | {0xeb}; /* jmp disp8 */ | |
1386 | static const unsigned char jump32_disp32[] = | |
1387 | {0xe9}; /* jmp disp32 */ | |
1388 | static const unsigned char jump16_disp32[] = | |
1389 | {0x66,0xe9}; /* jmp disp32 */ | |
62a02d25 L |
1390 | /* 32-bit NOPs patterns. */ |
1391 | static const unsigned char *const f32_patt[] = { | |
3ae729d5 | 1392 | f32_1, f32_2, f32_3, f32_4, NULL, f32_6, f32_7 |
62a02d25 L |
1393 | }; |
1394 | /* 16-bit NOPs patterns. */ | |
1395 | static const unsigned char *const f16_patt[] = { | |
3ae729d5 | 1396 | f32_1, f32_2, f16_3, f16_4 |
62a02d25 L |
1397 | }; |
1398 | /* nopl (%[re]ax) */ | |
1399 | static const unsigned char alt_3[] = | |
1400 | {0x0f,0x1f,0x00}; | |
1401 | /* nopl 0(%[re]ax) */ | |
1402 | static const unsigned char alt_4[] = | |
1403 | {0x0f,0x1f,0x40,0x00}; | |
1404 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
1405 | static const unsigned char alt_5[] = | |
1406 | {0x0f,0x1f,0x44,0x00,0x00}; | |
1407 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
1408 | static const unsigned char alt_6[] = | |
1409 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
1410 | /* nopl 0L(%[re]ax) */ | |
1411 | static const unsigned char alt_7[] = | |
1412 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
1413 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
1414 | static const unsigned char alt_8[] = | |
1415 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1416 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
1417 | static const unsigned char alt_9[] = | |
1418 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1419 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
1420 | static const unsigned char alt_10[] = | |
1421 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
3ae729d5 L |
1422 | /* data16 nopw %cs:0L(%eax,%eax,1) */ |
1423 | static const unsigned char alt_11[] = | |
1424 | {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
62a02d25 L |
1425 | /* 32-bit and 64-bit NOPs patterns. */ |
1426 | static const unsigned char *const alt_patt[] = { | |
1427 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
3ae729d5 | 1428 | alt_9, alt_10, alt_11 |
62a02d25 L |
1429 | }; |
1430 | ||
1431 | /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum | |
1432 | size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */ | |
1433 | ||
1434 | static void | |
1435 | i386_output_nops (char *where, const unsigned char *const *patt, | |
1436 | int count, int max_single_nop_size) | |
1437 | ||
1438 | { | |
3ae729d5 L |
1439 | /* Place the longer NOP first. */ |
1440 | int last; | |
1441 | int offset; | |
3076e594 NC |
1442 | const unsigned char *nops; |
1443 | ||
1444 | if (max_single_nop_size < 1) | |
1445 | { | |
1446 | as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"), | |
1447 | max_single_nop_size); | |
1448 | return; | |
1449 | } | |
1450 | ||
1451 | nops = patt[max_single_nop_size - 1]; | |
3ae729d5 L |
1452 | |
1453 | /* Use the smaller one if the requsted one isn't available. */ | |
1454 | if (nops == NULL) | |
62a02d25 | 1455 | { |
3ae729d5 L |
1456 | max_single_nop_size--; |
1457 | nops = patt[max_single_nop_size - 1]; | |
62a02d25 L |
1458 | } |
1459 | ||
3ae729d5 L |
1460 | last = count % max_single_nop_size; |
1461 | ||
1462 | count -= last; | |
1463 | for (offset = 0; offset < count; offset += max_single_nop_size) | |
1464 | memcpy (where + offset, nops, max_single_nop_size); | |
1465 | ||
1466 | if (last) | |
1467 | { | |
1468 | nops = patt[last - 1]; | |
1469 | if (nops == NULL) | |
1470 | { | |
1471 | /* Use the smaller one plus one-byte NOP if the needed one | |
1472 | isn't available. */ | |
1473 | last--; | |
1474 | nops = patt[last - 1]; | |
1475 | memcpy (where + offset, nops, last); | |
1476 | where[offset + last] = *patt[0]; | |
1477 | } | |
1478 | else | |
1479 | memcpy (where + offset, nops, last); | |
1480 | } | |
62a02d25 L |
1481 | } |
1482 | ||
3ae729d5 L |
1483 | static INLINE int |
1484 | fits_in_imm7 (offsetT num) | |
1485 | { | |
1486 | return (num & 0x7f) == num; | |
1487 | } | |
1488 | ||
1489 | static INLINE int | |
1490 | fits_in_imm31 (offsetT num) | |
1491 | { | |
1492 | return (num & 0x7fffffff) == num; | |
1493 | } | |
62a02d25 L |
1494 | |
1495 | /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a | |
1496 | single NOP instruction LIMIT. */ | |
1497 | ||
1498 | void | |
3ae729d5 | 1499 | i386_generate_nops (fragS *fragP, char *where, offsetT count, int limit) |
62a02d25 | 1500 | { |
3ae729d5 | 1501 | const unsigned char *const *patt = NULL; |
62a02d25 | 1502 | int max_single_nop_size; |
3ae729d5 L |
1503 | /* Maximum number of NOPs before switching to jump over NOPs. */ |
1504 | int max_number_of_nops; | |
62a02d25 | 1505 | |
3ae729d5 | 1506 | switch (fragP->fr_type) |
62a02d25 | 1507 | { |
3ae729d5 L |
1508 | case rs_fill_nop: |
1509 | case rs_align_code: | |
1510 | break; | |
e379e5f3 L |
1511 | case rs_machine_dependent: |
1512 | /* Allow NOP padding for jumps and calls. */ | |
1513 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
1514 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
1515 | break; | |
1516 | /* Fall through. */ | |
3ae729d5 | 1517 | default: |
62a02d25 L |
1518 | return; |
1519 | } | |
1520 | ||
ccc9c027 L |
1521 | /* We need to decide which NOP sequence to use for 32bit and |
1522 | 64bit. When -mtune= is used: | |
4eed87de | 1523 | |
76bc74dc L |
1524 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
1525 | PROCESSOR_GENERIC32, f32_patt will be used. | |
80b8656c L |
1526 | 2. For the rest, alt_patt will be used. |
1527 | ||
1528 | When -mtune= isn't used, alt_patt will be used if | |
22109423 | 1529 | cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will |
76bc74dc | 1530 | be used. |
ccc9c027 L |
1531 | |
1532 | When -march= or .arch is used, we can't use anything beyond | |
1533 | cpu_arch_isa_flags. */ | |
1534 | ||
1535 | if (flag_code == CODE_16BIT) | |
1536 | { | |
3ae729d5 L |
1537 | patt = f16_patt; |
1538 | max_single_nop_size = sizeof (f16_patt) / sizeof (f16_patt[0]); | |
1539 | /* Limit number of NOPs to 2 in 16-bit mode. */ | |
1540 | max_number_of_nops = 2; | |
252b5132 | 1541 | } |
33fef721 | 1542 | else |
ccc9c027 | 1543 | { |
fbf3f584 | 1544 | if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN) |
ccc9c027 L |
1545 | { |
1546 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
1547 | switch (cpu_arch_tune) | |
1548 | { | |
1549 | case PROCESSOR_UNKNOWN: | |
1550 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
22109423 L |
1551 | optimize with nops. */ |
1552 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1553 | patt = alt_patt; |
ccc9c027 L |
1554 | else |
1555 | patt = f32_patt; | |
1556 | break; | |
ccc9c027 L |
1557 | case PROCESSOR_PENTIUM4: |
1558 | case PROCESSOR_NOCONA: | |
ef05d495 | 1559 | case PROCESSOR_CORE: |
76bc74dc | 1560 | case PROCESSOR_CORE2: |
bd5295b2 | 1561 | case PROCESSOR_COREI7: |
3632d14b | 1562 | case PROCESSOR_L1OM: |
7a9068fe | 1563 | case PROCESSOR_K1OM: |
76bc74dc | 1564 | case PROCESSOR_GENERIC64: |
ccc9c027 L |
1565 | case PROCESSOR_K6: |
1566 | case PROCESSOR_ATHLON: | |
1567 | case PROCESSOR_K8: | |
4eed87de | 1568 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1569 | case PROCESSOR_BD: |
029f3522 | 1570 | case PROCESSOR_ZNVER: |
7b458c12 | 1571 | case PROCESSOR_BT: |
80b8656c | 1572 | patt = alt_patt; |
ccc9c027 | 1573 | break; |
76bc74dc | 1574 | case PROCESSOR_I386: |
ccc9c027 L |
1575 | case PROCESSOR_I486: |
1576 | case PROCESSOR_PENTIUM: | |
2dde1948 | 1577 | case PROCESSOR_PENTIUMPRO: |
81486035 | 1578 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1579 | case PROCESSOR_GENERIC32: |
1580 | patt = f32_patt; | |
1581 | break; | |
4eed87de | 1582 | } |
ccc9c027 L |
1583 | } |
1584 | else | |
1585 | { | |
fbf3f584 | 1586 | switch (fragP->tc_frag_data.tune) |
ccc9c027 L |
1587 | { |
1588 | case PROCESSOR_UNKNOWN: | |
e6a14101 | 1589 | /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be |
ccc9c027 L |
1590 | PROCESSOR_UNKNOWN. */ |
1591 | abort (); | |
1592 | break; | |
1593 | ||
76bc74dc | 1594 | case PROCESSOR_I386: |
ccc9c027 L |
1595 | case PROCESSOR_I486: |
1596 | case PROCESSOR_PENTIUM: | |
81486035 | 1597 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1598 | case PROCESSOR_K6: |
1599 | case PROCESSOR_ATHLON: | |
1600 | case PROCESSOR_K8: | |
4eed87de | 1601 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1602 | case PROCESSOR_BD: |
029f3522 | 1603 | case PROCESSOR_ZNVER: |
7b458c12 | 1604 | case PROCESSOR_BT: |
ccc9c027 L |
1605 | case PROCESSOR_GENERIC32: |
1606 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
22109423 L |
1607 | with nops. */ |
1608 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1609 | patt = alt_patt; |
ccc9c027 L |
1610 | else |
1611 | patt = f32_patt; | |
1612 | break; | |
76bc74dc L |
1613 | case PROCESSOR_PENTIUMPRO: |
1614 | case PROCESSOR_PENTIUM4: | |
1615 | case PROCESSOR_NOCONA: | |
1616 | case PROCESSOR_CORE: | |
ef05d495 | 1617 | case PROCESSOR_CORE2: |
bd5295b2 | 1618 | case PROCESSOR_COREI7: |
3632d14b | 1619 | case PROCESSOR_L1OM: |
7a9068fe | 1620 | case PROCESSOR_K1OM: |
22109423 | 1621 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) |
80b8656c | 1622 | patt = alt_patt; |
ccc9c027 L |
1623 | else |
1624 | patt = f32_patt; | |
1625 | break; | |
1626 | case PROCESSOR_GENERIC64: | |
80b8656c | 1627 | patt = alt_patt; |
ccc9c027 | 1628 | break; |
4eed87de | 1629 | } |
ccc9c027 L |
1630 | } |
1631 | ||
76bc74dc L |
1632 | if (patt == f32_patt) |
1633 | { | |
3ae729d5 L |
1634 | max_single_nop_size = sizeof (f32_patt) / sizeof (f32_patt[0]); |
1635 | /* Limit number of NOPs to 2 for older processors. */ | |
1636 | max_number_of_nops = 2; | |
76bc74dc L |
1637 | } |
1638 | else | |
1639 | { | |
3ae729d5 L |
1640 | max_single_nop_size = sizeof (alt_patt) / sizeof (alt_patt[0]); |
1641 | /* Limit number of NOPs to 7 for newer processors. */ | |
1642 | max_number_of_nops = 7; | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | if (limit == 0) | |
1647 | limit = max_single_nop_size; | |
1648 | ||
1649 | if (fragP->fr_type == rs_fill_nop) | |
1650 | { | |
1651 | /* Output NOPs for .nop directive. */ | |
1652 | if (limit > max_single_nop_size) | |
1653 | { | |
1654 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1655 | _("invalid single nop size: %d " | |
1656 | "(expect within [0, %d])"), | |
1657 | limit, max_single_nop_size); | |
1658 | return; | |
1659 | } | |
1660 | } | |
e379e5f3 | 1661 | else if (fragP->fr_type != rs_machine_dependent) |
3ae729d5 L |
1662 | fragP->fr_var = count; |
1663 | ||
1664 | if ((count / max_single_nop_size) > max_number_of_nops) | |
1665 | { | |
1666 | /* Generate jump over NOPs. */ | |
1667 | offsetT disp = count - 2; | |
1668 | if (fits_in_imm7 (disp)) | |
1669 | { | |
1670 | /* Use "jmp disp8" if possible. */ | |
1671 | count = disp; | |
1672 | where[0] = jump_disp8[0]; | |
1673 | where[1] = count; | |
1674 | where += 2; | |
1675 | } | |
1676 | else | |
1677 | { | |
1678 | unsigned int size_of_jump; | |
1679 | ||
1680 | if (flag_code == CODE_16BIT) | |
1681 | { | |
1682 | where[0] = jump16_disp32[0]; | |
1683 | where[1] = jump16_disp32[1]; | |
1684 | size_of_jump = 2; | |
1685 | } | |
1686 | else | |
1687 | { | |
1688 | where[0] = jump32_disp32[0]; | |
1689 | size_of_jump = 1; | |
1690 | } | |
1691 | ||
1692 | count -= size_of_jump + 4; | |
1693 | if (!fits_in_imm31 (count)) | |
1694 | { | |
1695 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1696 | _("jump over nop padding out of range")); | |
1697 | return; | |
1698 | } | |
1699 | ||
1700 | md_number_to_chars (where + size_of_jump, count, 4); | |
1701 | where += size_of_jump + 4; | |
76bc74dc | 1702 | } |
ccc9c027 | 1703 | } |
3ae729d5 L |
1704 | |
1705 | /* Generate multiple NOPs. */ | |
1706 | i386_output_nops (where, patt, count, limit); | |
252b5132 RH |
1707 | } |
1708 | ||
c6fb90c8 | 1709 | static INLINE int |
0dfbf9d7 | 1710 | operand_type_all_zero (const union i386_operand_type *x) |
40fb9820 | 1711 | { |
0dfbf9d7 | 1712 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1713 | { |
1714 | case 3: | |
0dfbf9d7 | 1715 | if (x->array[2]) |
c6fb90c8 | 1716 | return 0; |
1a0670f3 | 1717 | /* Fall through. */ |
c6fb90c8 | 1718 | case 2: |
0dfbf9d7 | 1719 | if (x->array[1]) |
c6fb90c8 | 1720 | return 0; |
1a0670f3 | 1721 | /* Fall through. */ |
c6fb90c8 | 1722 | case 1: |
0dfbf9d7 | 1723 | return !x->array[0]; |
c6fb90c8 L |
1724 | default: |
1725 | abort (); | |
1726 | } | |
40fb9820 L |
1727 | } |
1728 | ||
c6fb90c8 | 1729 | static INLINE void |
0dfbf9d7 | 1730 | operand_type_set (union i386_operand_type *x, unsigned int v) |
40fb9820 | 1731 | { |
0dfbf9d7 | 1732 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1733 | { |
1734 | case 3: | |
0dfbf9d7 | 1735 | x->array[2] = v; |
1a0670f3 | 1736 | /* Fall through. */ |
c6fb90c8 | 1737 | case 2: |
0dfbf9d7 | 1738 | x->array[1] = v; |
1a0670f3 | 1739 | /* Fall through. */ |
c6fb90c8 | 1740 | case 1: |
0dfbf9d7 | 1741 | x->array[0] = v; |
1a0670f3 | 1742 | /* Fall through. */ |
c6fb90c8 L |
1743 | break; |
1744 | default: | |
1745 | abort (); | |
1746 | } | |
bab6aec1 JB |
1747 | |
1748 | x->bitfield.class = ClassNone; | |
75e5731b | 1749 | x->bitfield.instance = InstanceNone; |
c6fb90c8 | 1750 | } |
40fb9820 | 1751 | |
c6fb90c8 | 1752 | static INLINE int |
0dfbf9d7 L |
1753 | operand_type_equal (const union i386_operand_type *x, |
1754 | const union i386_operand_type *y) | |
c6fb90c8 | 1755 | { |
0dfbf9d7 | 1756 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1757 | { |
1758 | case 3: | |
0dfbf9d7 | 1759 | if (x->array[2] != y->array[2]) |
c6fb90c8 | 1760 | return 0; |
1a0670f3 | 1761 | /* Fall through. */ |
c6fb90c8 | 1762 | case 2: |
0dfbf9d7 | 1763 | if (x->array[1] != y->array[1]) |
c6fb90c8 | 1764 | return 0; |
1a0670f3 | 1765 | /* Fall through. */ |
c6fb90c8 | 1766 | case 1: |
0dfbf9d7 | 1767 | return x->array[0] == y->array[0]; |
c6fb90c8 L |
1768 | break; |
1769 | default: | |
1770 | abort (); | |
1771 | } | |
1772 | } | |
40fb9820 | 1773 | |
0dfbf9d7 L |
1774 | static INLINE int |
1775 | cpu_flags_all_zero (const union i386_cpu_flags *x) | |
1776 | { | |
1777 | switch (ARRAY_SIZE(x->array)) | |
1778 | { | |
53467f57 IT |
1779 | case 4: |
1780 | if (x->array[3]) | |
1781 | return 0; | |
1782 | /* Fall through. */ | |
0dfbf9d7 L |
1783 | case 3: |
1784 | if (x->array[2]) | |
1785 | return 0; | |
1a0670f3 | 1786 | /* Fall through. */ |
0dfbf9d7 L |
1787 | case 2: |
1788 | if (x->array[1]) | |
1789 | return 0; | |
1a0670f3 | 1790 | /* Fall through. */ |
0dfbf9d7 L |
1791 | case 1: |
1792 | return !x->array[0]; | |
1793 | default: | |
1794 | abort (); | |
1795 | } | |
1796 | } | |
1797 | ||
0dfbf9d7 L |
1798 | static INLINE int |
1799 | cpu_flags_equal (const union i386_cpu_flags *x, | |
1800 | const union i386_cpu_flags *y) | |
1801 | { | |
1802 | switch (ARRAY_SIZE(x->array)) | |
1803 | { | |
53467f57 IT |
1804 | case 4: |
1805 | if (x->array[3] != y->array[3]) | |
1806 | return 0; | |
1807 | /* Fall through. */ | |
0dfbf9d7 L |
1808 | case 3: |
1809 | if (x->array[2] != y->array[2]) | |
1810 | return 0; | |
1a0670f3 | 1811 | /* Fall through. */ |
0dfbf9d7 L |
1812 | case 2: |
1813 | if (x->array[1] != y->array[1]) | |
1814 | return 0; | |
1a0670f3 | 1815 | /* Fall through. */ |
0dfbf9d7 L |
1816 | case 1: |
1817 | return x->array[0] == y->array[0]; | |
1818 | break; | |
1819 | default: | |
1820 | abort (); | |
1821 | } | |
1822 | } | |
c6fb90c8 L |
1823 | |
1824 | static INLINE int | |
1825 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
1826 | { | |
1827 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
1828 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
1829 | } |
1830 | ||
c6fb90c8 L |
1831 | static INLINE i386_cpu_flags |
1832 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1833 | { |
c6fb90c8 L |
1834 | switch (ARRAY_SIZE (x.array)) |
1835 | { | |
53467f57 IT |
1836 | case 4: |
1837 | x.array [3] &= y.array [3]; | |
1838 | /* Fall through. */ | |
c6fb90c8 L |
1839 | case 3: |
1840 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1841 | /* Fall through. */ |
c6fb90c8 L |
1842 | case 2: |
1843 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1844 | /* Fall through. */ |
c6fb90c8 L |
1845 | case 1: |
1846 | x.array [0] &= y.array [0]; | |
1847 | break; | |
1848 | default: | |
1849 | abort (); | |
1850 | } | |
1851 | return x; | |
1852 | } | |
40fb9820 | 1853 | |
c6fb90c8 L |
1854 | static INLINE i386_cpu_flags |
1855 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1856 | { |
c6fb90c8 | 1857 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1858 | { |
53467f57 IT |
1859 | case 4: |
1860 | x.array [3] |= y.array [3]; | |
1861 | /* Fall through. */ | |
c6fb90c8 L |
1862 | case 3: |
1863 | x.array [2] |= y.array [2]; | |
1a0670f3 | 1864 | /* Fall through. */ |
c6fb90c8 L |
1865 | case 2: |
1866 | x.array [1] |= y.array [1]; | |
1a0670f3 | 1867 | /* Fall through. */ |
c6fb90c8 L |
1868 | case 1: |
1869 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1870 | break; |
1871 | default: | |
1872 | abort (); | |
1873 | } | |
40fb9820 L |
1874 | return x; |
1875 | } | |
1876 | ||
309d3373 JB |
1877 | static INLINE i386_cpu_flags |
1878 | cpu_flags_and_not (i386_cpu_flags x, i386_cpu_flags y) | |
1879 | { | |
1880 | switch (ARRAY_SIZE (x.array)) | |
1881 | { | |
53467f57 IT |
1882 | case 4: |
1883 | x.array [3] &= ~y.array [3]; | |
1884 | /* Fall through. */ | |
309d3373 JB |
1885 | case 3: |
1886 | x.array [2] &= ~y.array [2]; | |
1a0670f3 | 1887 | /* Fall through. */ |
309d3373 JB |
1888 | case 2: |
1889 | x.array [1] &= ~y.array [1]; | |
1a0670f3 | 1890 | /* Fall through. */ |
309d3373 JB |
1891 | case 1: |
1892 | x.array [0] &= ~y.array [0]; | |
1893 | break; | |
1894 | default: | |
1895 | abort (); | |
1896 | } | |
1897 | return x; | |
1898 | } | |
1899 | ||
6c0946d0 JB |
1900 | static const i386_cpu_flags avx512 = CPU_ANY_AVX512F_FLAGS; |
1901 | ||
c0f3af97 L |
1902 | #define CPU_FLAGS_ARCH_MATCH 0x1 |
1903 | #define CPU_FLAGS_64BIT_MATCH 0x2 | |
1904 | ||
c0f3af97 | 1905 | #define CPU_FLAGS_PERFECT_MATCH \ |
db12e14e | 1906 | (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH) |
c0f3af97 L |
1907 | |
1908 | /* Return CPU flags match bits. */ | |
3629bb00 | 1909 | |
40fb9820 | 1910 | static int |
d3ce72d0 | 1911 | cpu_flags_match (const insn_template *t) |
40fb9820 | 1912 | { |
c0f3af97 L |
1913 | i386_cpu_flags x = t->cpu_flags; |
1914 | int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0; | |
40fb9820 L |
1915 | |
1916 | x.bitfield.cpu64 = 0; | |
1917 | x.bitfield.cpuno64 = 0; | |
1918 | ||
0dfbf9d7 | 1919 | if (cpu_flags_all_zero (&x)) |
c0f3af97 L |
1920 | { |
1921 | /* This instruction is available on all archs. */ | |
db12e14e | 1922 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1923 | } |
3629bb00 L |
1924 | else |
1925 | { | |
c0f3af97 | 1926 | /* This instruction is available only on some archs. */ |
3629bb00 L |
1927 | i386_cpu_flags cpu = cpu_arch_flags; |
1928 | ||
ab592e75 JB |
1929 | /* AVX512VL is no standalone feature - match it and then strip it. */ |
1930 | if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl) | |
1931 | return match; | |
1932 | x.bitfield.cpuavx512vl = 0; | |
1933 | ||
3629bb00 | 1934 | cpu = cpu_flags_and (x, cpu); |
c0f3af97 L |
1935 | if (!cpu_flags_all_zero (&cpu)) |
1936 | { | |
a5ff0eb2 L |
1937 | if (x.bitfield.cpuavx) |
1938 | { | |
929f69fa | 1939 | /* We need to check a few extra flags with AVX. */ |
b9d49817 JB |
1940 | if (cpu.bitfield.cpuavx |
1941 | && (!t->opcode_modifier.sse2avx || sse2avx) | |
1942 | && (!x.bitfield.cpuaes || cpu.bitfield.cpuaes) | |
929f69fa | 1943 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) |
b9d49817 JB |
1944 | && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul)) |
1945 | match |= CPU_FLAGS_ARCH_MATCH; | |
a5ff0eb2 | 1946 | } |
929f69fa JB |
1947 | else if (x.bitfield.cpuavx512f) |
1948 | { | |
1949 | /* We need to check a few extra flags with AVX512F. */ | |
1950 | if (cpu.bitfield.cpuavx512f | |
1951 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) | |
1952 | && (!x.bitfield.cpuvaes || cpu.bitfield.cpuvaes) | |
1953 | && (!x.bitfield.cpuvpclmulqdq || cpu.bitfield.cpuvpclmulqdq)) | |
1954 | match |= CPU_FLAGS_ARCH_MATCH; | |
1955 | } | |
a5ff0eb2 | 1956 | else |
db12e14e | 1957 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1958 | } |
3629bb00 | 1959 | } |
c0f3af97 | 1960 | return match; |
40fb9820 L |
1961 | } |
1962 | ||
c6fb90c8 L |
1963 | static INLINE i386_operand_type |
1964 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1965 | { |
bab6aec1 JB |
1966 | if (x.bitfield.class != y.bitfield.class) |
1967 | x.bitfield.class = ClassNone; | |
75e5731b JB |
1968 | if (x.bitfield.instance != y.bitfield.instance) |
1969 | x.bitfield.instance = InstanceNone; | |
bab6aec1 | 1970 | |
c6fb90c8 L |
1971 | switch (ARRAY_SIZE (x.array)) |
1972 | { | |
1973 | case 3: | |
1974 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1975 | /* Fall through. */ |
c6fb90c8 L |
1976 | case 2: |
1977 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1978 | /* Fall through. */ |
c6fb90c8 L |
1979 | case 1: |
1980 | x.array [0] &= y.array [0]; | |
1981 | break; | |
1982 | default: | |
1983 | abort (); | |
1984 | } | |
1985 | return x; | |
40fb9820 L |
1986 | } |
1987 | ||
73053c1f JB |
1988 | static INLINE i386_operand_type |
1989 | operand_type_and_not (i386_operand_type x, i386_operand_type y) | |
1990 | { | |
bab6aec1 | 1991 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 1992 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 1993 | |
73053c1f JB |
1994 | switch (ARRAY_SIZE (x.array)) |
1995 | { | |
1996 | case 3: | |
1997 | x.array [2] &= ~y.array [2]; | |
1998 | /* Fall through. */ | |
1999 | case 2: | |
2000 | x.array [1] &= ~y.array [1]; | |
2001 | /* Fall through. */ | |
2002 | case 1: | |
2003 | x.array [0] &= ~y.array [0]; | |
2004 | break; | |
2005 | default: | |
2006 | abort (); | |
2007 | } | |
2008 | return x; | |
2009 | } | |
2010 | ||
c6fb90c8 L |
2011 | static INLINE i386_operand_type |
2012 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 2013 | { |
bab6aec1 JB |
2014 | gas_assert (x.bitfield.class == ClassNone || |
2015 | y.bitfield.class == ClassNone || | |
2016 | x.bitfield.class == y.bitfield.class); | |
75e5731b JB |
2017 | gas_assert (x.bitfield.instance == InstanceNone || |
2018 | y.bitfield.instance == InstanceNone || | |
2019 | x.bitfield.instance == y.bitfield.instance); | |
bab6aec1 | 2020 | |
c6fb90c8 | 2021 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 2022 | { |
c6fb90c8 L |
2023 | case 3: |
2024 | x.array [2] |= y.array [2]; | |
1a0670f3 | 2025 | /* Fall through. */ |
c6fb90c8 L |
2026 | case 2: |
2027 | x.array [1] |= y.array [1]; | |
1a0670f3 | 2028 | /* Fall through. */ |
c6fb90c8 L |
2029 | case 1: |
2030 | x.array [0] |= y.array [0]; | |
40fb9820 L |
2031 | break; |
2032 | default: | |
2033 | abort (); | |
2034 | } | |
c6fb90c8 L |
2035 | return x; |
2036 | } | |
40fb9820 | 2037 | |
c6fb90c8 L |
2038 | static INLINE i386_operand_type |
2039 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
2040 | { | |
bab6aec1 | 2041 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 2042 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 2043 | |
c6fb90c8 L |
2044 | switch (ARRAY_SIZE (x.array)) |
2045 | { | |
2046 | case 3: | |
2047 | x.array [2] ^= y.array [2]; | |
1a0670f3 | 2048 | /* Fall through. */ |
c6fb90c8 L |
2049 | case 2: |
2050 | x.array [1] ^= y.array [1]; | |
1a0670f3 | 2051 | /* Fall through. */ |
c6fb90c8 L |
2052 | case 1: |
2053 | x.array [0] ^= y.array [0]; | |
2054 | break; | |
2055 | default: | |
2056 | abort (); | |
2057 | } | |
40fb9820 L |
2058 | return x; |
2059 | } | |
2060 | ||
40fb9820 L |
2061 | static const i386_operand_type disp16 = OPERAND_TYPE_DISP16; |
2062 | static const i386_operand_type disp32 = OPERAND_TYPE_DISP32; | |
2063 | static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S; | |
2064 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; | |
bab6aec1 JB |
2065 | static const i386_operand_type anydisp = OPERAND_TYPE_ANYDISP; |
2066 | static const i386_operand_type anyimm = OPERAND_TYPE_ANYIMM; | |
40fb9820 | 2067 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
43234a1e | 2068 | static const i386_operand_type regmask = OPERAND_TYPE_REGMASK; |
40fb9820 L |
2069 | static const i386_operand_type imm8 = OPERAND_TYPE_IMM8; |
2070 | static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S; | |
2071 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; | |
2072 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
2073 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
2074 | static const i386_operand_type imm64 = OPERAND_TYPE_IMM64; | |
2075 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; | |
2076 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
2077 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
2078 | ||
2079 | enum operand_type | |
2080 | { | |
2081 | reg, | |
40fb9820 L |
2082 | imm, |
2083 | disp, | |
2084 | anymem | |
2085 | }; | |
2086 | ||
c6fb90c8 | 2087 | static INLINE int |
40fb9820 L |
2088 | operand_type_check (i386_operand_type t, enum operand_type c) |
2089 | { | |
2090 | switch (c) | |
2091 | { | |
2092 | case reg: | |
bab6aec1 | 2093 | return t.bitfield.class == Reg; |
40fb9820 | 2094 | |
40fb9820 L |
2095 | case imm: |
2096 | return (t.bitfield.imm8 | |
2097 | || t.bitfield.imm8s | |
2098 | || t.bitfield.imm16 | |
2099 | || t.bitfield.imm32 | |
2100 | || t.bitfield.imm32s | |
2101 | || t.bitfield.imm64); | |
2102 | ||
2103 | case disp: | |
2104 | return (t.bitfield.disp8 | |
2105 | || t.bitfield.disp16 | |
2106 | || t.bitfield.disp32 | |
2107 | || t.bitfield.disp32s | |
2108 | || t.bitfield.disp64); | |
2109 | ||
2110 | case anymem: | |
2111 | return (t.bitfield.disp8 | |
2112 | || t.bitfield.disp16 | |
2113 | || t.bitfield.disp32 | |
2114 | || t.bitfield.disp32s | |
2115 | || t.bitfield.disp64 | |
2116 | || t.bitfield.baseindex); | |
2117 | ||
2118 | default: | |
2119 | abort (); | |
2120 | } | |
2cfe26b6 AM |
2121 | |
2122 | return 0; | |
40fb9820 L |
2123 | } |
2124 | ||
7a54636a L |
2125 | /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size |
2126 | between operand GIVEN and opeand WANTED for instruction template T. */ | |
5c07affc L |
2127 | |
2128 | static INLINE int | |
7a54636a L |
2129 | match_operand_size (const insn_template *t, unsigned int wanted, |
2130 | unsigned int given) | |
5c07affc | 2131 | { |
3ac21baa JB |
2132 | return !((i.types[given].bitfield.byte |
2133 | && !t->operand_types[wanted].bitfield.byte) | |
2134 | || (i.types[given].bitfield.word | |
2135 | && !t->operand_types[wanted].bitfield.word) | |
2136 | || (i.types[given].bitfield.dword | |
2137 | && !t->operand_types[wanted].bitfield.dword) | |
2138 | || (i.types[given].bitfield.qword | |
2139 | && !t->operand_types[wanted].bitfield.qword) | |
2140 | || (i.types[given].bitfield.tbyte | |
2141 | && !t->operand_types[wanted].bitfield.tbyte)); | |
5c07affc L |
2142 | } |
2143 | ||
dd40ce22 L |
2144 | /* Return 1 if there is no conflict in SIMD register between operand |
2145 | GIVEN and opeand WANTED for instruction template T. */ | |
1b54b8d7 JB |
2146 | |
2147 | static INLINE int | |
dd40ce22 L |
2148 | match_simd_size (const insn_template *t, unsigned int wanted, |
2149 | unsigned int given) | |
1b54b8d7 | 2150 | { |
3ac21baa JB |
2151 | return !((i.types[given].bitfield.xmmword |
2152 | && !t->operand_types[wanted].bitfield.xmmword) | |
2153 | || (i.types[given].bitfield.ymmword | |
2154 | && !t->operand_types[wanted].bitfield.ymmword) | |
2155 | || (i.types[given].bitfield.zmmword | |
2156 | && !t->operand_types[wanted].bitfield.zmmword)); | |
1b54b8d7 JB |
2157 | } |
2158 | ||
7a54636a L |
2159 | /* Return 1 if there is no conflict in any size between operand GIVEN |
2160 | and opeand WANTED for instruction template T. */ | |
5c07affc L |
2161 | |
2162 | static INLINE int | |
dd40ce22 L |
2163 | match_mem_size (const insn_template *t, unsigned int wanted, |
2164 | unsigned int given) | |
5c07affc | 2165 | { |
7a54636a | 2166 | return (match_operand_size (t, wanted, given) |
3ac21baa | 2167 | && !((i.types[given].bitfield.unspecified |
af508cb9 | 2168 | && !i.broadcast |
3ac21baa JB |
2169 | && !t->operand_types[wanted].bitfield.unspecified) |
2170 | || (i.types[given].bitfield.fword | |
2171 | && !t->operand_types[wanted].bitfield.fword) | |
1b54b8d7 JB |
2172 | /* For scalar opcode templates to allow register and memory |
2173 | operands at the same time, some special casing is needed | |
d6793fa1 JB |
2174 | here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and |
2175 | down-conversion vpmov*. */ | |
3528c362 | 2176 | || ((t->operand_types[wanted].bitfield.class == RegSIMD |
bc49bfd8 JB |
2177 | && t->operand_types[wanted].bitfield.byte |
2178 | + t->operand_types[wanted].bitfield.word | |
2179 | + t->operand_types[wanted].bitfield.dword | |
2180 | + t->operand_types[wanted].bitfield.qword | |
2181 | > !!t->opcode_modifier.broadcast) | |
3ac21baa JB |
2182 | ? (i.types[given].bitfield.xmmword |
2183 | || i.types[given].bitfield.ymmword | |
2184 | || i.types[given].bitfield.zmmword) | |
2185 | : !match_simd_size(t, wanted, given)))); | |
5c07affc L |
2186 | } |
2187 | ||
3ac21baa JB |
2188 | /* Return value has MATCH_STRAIGHT set if there is no size conflict on any |
2189 | operands for instruction template T, and it has MATCH_REVERSE set if there | |
2190 | is no size conflict on any operands for the template with operands reversed | |
2191 | (and the template allows for reversing in the first place). */ | |
5c07affc | 2192 | |
3ac21baa JB |
2193 | #define MATCH_STRAIGHT 1 |
2194 | #define MATCH_REVERSE 2 | |
2195 | ||
2196 | static INLINE unsigned int | |
d3ce72d0 | 2197 | operand_size_match (const insn_template *t) |
5c07affc | 2198 | { |
3ac21baa | 2199 | unsigned int j, match = MATCH_STRAIGHT; |
5c07affc | 2200 | |
0cfa3eb3 | 2201 | /* Don't check non-absolute jump instructions. */ |
5c07affc | 2202 | if (t->opcode_modifier.jump |
0cfa3eb3 | 2203 | && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
5c07affc L |
2204 | return match; |
2205 | ||
2206 | /* Check memory and accumulator operand size. */ | |
2207 | for (j = 0; j < i.operands; j++) | |
2208 | { | |
3528c362 JB |
2209 | if (i.types[j].bitfield.class != Reg |
2210 | && i.types[j].bitfield.class != RegSIMD | |
601e8564 | 2211 | && t->opcode_modifier.anysize) |
5c07affc L |
2212 | continue; |
2213 | ||
bab6aec1 | 2214 | if (t->operand_types[j].bitfield.class == Reg |
7a54636a | 2215 | && !match_operand_size (t, j, j)) |
5c07affc L |
2216 | { |
2217 | match = 0; | |
2218 | break; | |
2219 | } | |
2220 | ||
3528c362 | 2221 | if (t->operand_types[j].bitfield.class == RegSIMD |
3ac21baa | 2222 | && !match_simd_size (t, j, j)) |
1b54b8d7 JB |
2223 | { |
2224 | match = 0; | |
2225 | break; | |
2226 | } | |
2227 | ||
75e5731b | 2228 | if (t->operand_types[j].bitfield.instance == Accum |
7a54636a | 2229 | && (!match_operand_size (t, j, j) || !match_simd_size (t, j, j))) |
1b54b8d7 JB |
2230 | { |
2231 | match = 0; | |
2232 | break; | |
2233 | } | |
2234 | ||
c48dadc9 | 2235 | if ((i.flags[j] & Operand_Mem) && !match_mem_size (t, j, j)) |
5c07affc L |
2236 | { |
2237 | match = 0; | |
2238 | break; | |
2239 | } | |
2240 | } | |
2241 | ||
3ac21baa | 2242 | if (!t->opcode_modifier.d) |
891edac4 | 2243 | { |
dc1e8a47 | 2244 | mismatch: |
3ac21baa JB |
2245 | if (!match) |
2246 | i.error = operand_size_mismatch; | |
2247 | return match; | |
891edac4 | 2248 | } |
5c07affc L |
2249 | |
2250 | /* Check reverse. */ | |
f5eb1d70 | 2251 | gas_assert (i.operands >= 2 && i.operands <= 3); |
5c07affc | 2252 | |
f5eb1d70 | 2253 | for (j = 0; j < i.operands; j++) |
5c07affc | 2254 | { |
f5eb1d70 JB |
2255 | unsigned int given = i.operands - j - 1; |
2256 | ||
bab6aec1 | 2257 | if (t->operand_types[j].bitfield.class == Reg |
f5eb1d70 | 2258 | && !match_operand_size (t, j, given)) |
891edac4 | 2259 | goto mismatch; |
5c07affc | 2260 | |
3528c362 | 2261 | if (t->operand_types[j].bitfield.class == RegSIMD |
f5eb1d70 | 2262 | && !match_simd_size (t, j, given)) |
dbbc8b7e JB |
2263 | goto mismatch; |
2264 | ||
75e5731b | 2265 | if (t->operand_types[j].bitfield.instance == Accum |
f5eb1d70 JB |
2266 | && (!match_operand_size (t, j, given) |
2267 | || !match_simd_size (t, j, given))) | |
dbbc8b7e JB |
2268 | goto mismatch; |
2269 | ||
f5eb1d70 | 2270 | if ((i.flags[given] & Operand_Mem) && !match_mem_size (t, j, given)) |
891edac4 | 2271 | goto mismatch; |
5c07affc L |
2272 | } |
2273 | ||
3ac21baa | 2274 | return match | MATCH_REVERSE; |
5c07affc L |
2275 | } |
2276 | ||
c6fb90c8 | 2277 | static INLINE int |
40fb9820 L |
2278 | operand_type_match (i386_operand_type overlap, |
2279 | i386_operand_type given) | |
2280 | { | |
2281 | i386_operand_type temp = overlap; | |
2282 | ||
7d5e4556 | 2283 | temp.bitfield.unspecified = 0; |
5c07affc L |
2284 | temp.bitfield.byte = 0; |
2285 | temp.bitfield.word = 0; | |
2286 | temp.bitfield.dword = 0; | |
2287 | temp.bitfield.fword = 0; | |
2288 | temp.bitfield.qword = 0; | |
2289 | temp.bitfield.tbyte = 0; | |
2290 | temp.bitfield.xmmword = 0; | |
c0f3af97 | 2291 | temp.bitfield.ymmword = 0; |
43234a1e | 2292 | temp.bitfield.zmmword = 0; |
0dfbf9d7 | 2293 | if (operand_type_all_zero (&temp)) |
891edac4 | 2294 | goto mismatch; |
40fb9820 | 2295 | |
6f2f06be | 2296 | if (given.bitfield.baseindex == overlap.bitfield.baseindex) |
891edac4 L |
2297 | return 1; |
2298 | ||
dc1e8a47 | 2299 | mismatch: |
a65babc9 | 2300 | i.error = operand_type_mismatch; |
891edac4 | 2301 | return 0; |
40fb9820 L |
2302 | } |
2303 | ||
7d5e4556 | 2304 | /* If given types g0 and g1 are registers they must be of the same type |
10c17abd | 2305 | unless the expected operand type register overlap is null. |
5de4d9ef | 2306 | Some Intel syntax memory operand size checking also happens here. */ |
40fb9820 | 2307 | |
c6fb90c8 | 2308 | static INLINE int |
dc821c5f | 2309 | operand_type_register_match (i386_operand_type g0, |
40fb9820 | 2310 | i386_operand_type t0, |
40fb9820 L |
2311 | i386_operand_type g1, |
2312 | i386_operand_type t1) | |
2313 | { | |
bab6aec1 | 2314 | if (g0.bitfield.class != Reg |
3528c362 | 2315 | && g0.bitfield.class != RegSIMD |
10c17abd JB |
2316 | && (!operand_type_check (g0, anymem) |
2317 | || g0.bitfield.unspecified | |
5de4d9ef JB |
2318 | || (t0.bitfield.class != Reg |
2319 | && t0.bitfield.class != RegSIMD))) | |
40fb9820 L |
2320 | return 1; |
2321 | ||
bab6aec1 | 2322 | if (g1.bitfield.class != Reg |
3528c362 | 2323 | && g1.bitfield.class != RegSIMD |
10c17abd JB |
2324 | && (!operand_type_check (g1, anymem) |
2325 | || g1.bitfield.unspecified | |
5de4d9ef JB |
2326 | || (t1.bitfield.class != Reg |
2327 | && t1.bitfield.class != RegSIMD))) | |
40fb9820 L |
2328 | return 1; |
2329 | ||
dc821c5f JB |
2330 | if (g0.bitfield.byte == g1.bitfield.byte |
2331 | && g0.bitfield.word == g1.bitfield.word | |
2332 | && g0.bitfield.dword == g1.bitfield.dword | |
10c17abd JB |
2333 | && g0.bitfield.qword == g1.bitfield.qword |
2334 | && g0.bitfield.xmmword == g1.bitfield.xmmword | |
2335 | && g0.bitfield.ymmword == g1.bitfield.ymmword | |
2336 | && g0.bitfield.zmmword == g1.bitfield.zmmword) | |
40fb9820 L |
2337 | return 1; |
2338 | ||
dc821c5f JB |
2339 | if (!(t0.bitfield.byte & t1.bitfield.byte) |
2340 | && !(t0.bitfield.word & t1.bitfield.word) | |
2341 | && !(t0.bitfield.dword & t1.bitfield.dword) | |
10c17abd JB |
2342 | && !(t0.bitfield.qword & t1.bitfield.qword) |
2343 | && !(t0.bitfield.xmmword & t1.bitfield.xmmword) | |
2344 | && !(t0.bitfield.ymmword & t1.bitfield.ymmword) | |
2345 | && !(t0.bitfield.zmmword & t1.bitfield.zmmword)) | |
891edac4 L |
2346 | return 1; |
2347 | ||
a65babc9 | 2348 | i.error = register_type_mismatch; |
891edac4 L |
2349 | |
2350 | return 0; | |
40fb9820 L |
2351 | } |
2352 | ||
4c692bc7 JB |
2353 | static INLINE unsigned int |
2354 | register_number (const reg_entry *r) | |
2355 | { | |
2356 | unsigned int nr = r->reg_num; | |
2357 | ||
2358 | if (r->reg_flags & RegRex) | |
2359 | nr += 8; | |
2360 | ||
200cbe0f L |
2361 | if (r->reg_flags & RegVRex) |
2362 | nr += 16; | |
2363 | ||
4c692bc7 JB |
2364 | return nr; |
2365 | } | |
2366 | ||
252b5132 | 2367 | static INLINE unsigned int |
40fb9820 | 2368 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 2369 | { |
b5014f7a | 2370 | if (t.bitfield.disp8) |
40fb9820 L |
2371 | return 1; |
2372 | else if (t.bitfield.disp16 | |
2373 | || t.bitfield.disp32 | |
2374 | || t.bitfield.disp32s) | |
2375 | return 2; | |
2376 | else | |
2377 | return 0; | |
252b5132 RH |
2378 | } |
2379 | ||
2380 | static INLINE int | |
65879393 | 2381 | fits_in_signed_byte (addressT num) |
252b5132 | 2382 | { |
65879393 | 2383 | return num + 0x80 <= 0xff; |
47926f60 | 2384 | } |
252b5132 RH |
2385 | |
2386 | static INLINE int | |
65879393 | 2387 | fits_in_unsigned_byte (addressT num) |
252b5132 | 2388 | { |
65879393 | 2389 | return num <= 0xff; |
47926f60 | 2390 | } |
252b5132 RH |
2391 | |
2392 | static INLINE int | |
65879393 | 2393 | fits_in_unsigned_word (addressT num) |
252b5132 | 2394 | { |
65879393 | 2395 | return num <= 0xffff; |
47926f60 | 2396 | } |
252b5132 RH |
2397 | |
2398 | static INLINE int | |
65879393 | 2399 | fits_in_signed_word (addressT num) |
252b5132 | 2400 | { |
65879393 | 2401 | return num + 0x8000 <= 0xffff; |
47926f60 | 2402 | } |
2a962e6d | 2403 | |
3e73aa7c | 2404 | static INLINE int |
65879393 | 2405 | fits_in_signed_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2406 | { |
2407 | #ifndef BFD64 | |
2408 | return 1; | |
2409 | #else | |
65879393 | 2410 | return num + 0x80000000 <= 0xffffffff; |
3e73aa7c JH |
2411 | #endif |
2412 | } /* fits_in_signed_long() */ | |
2a962e6d | 2413 | |
3e73aa7c | 2414 | static INLINE int |
65879393 | 2415 | fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2416 | { |
2417 | #ifndef BFD64 | |
2418 | return 1; | |
2419 | #else | |
65879393 | 2420 | return num <= 0xffffffff; |
3e73aa7c JH |
2421 | #endif |
2422 | } /* fits_in_unsigned_long() */ | |
252b5132 | 2423 | |
43234a1e | 2424 | static INLINE int |
b5014f7a | 2425 | fits_in_disp8 (offsetT num) |
43234a1e L |
2426 | { |
2427 | int shift = i.memshift; | |
2428 | unsigned int mask; | |
2429 | ||
2430 | if (shift == -1) | |
2431 | abort (); | |
2432 | ||
2433 | mask = (1 << shift) - 1; | |
2434 | ||
2435 | /* Return 0 if NUM isn't properly aligned. */ | |
2436 | if ((num & mask)) | |
2437 | return 0; | |
2438 | ||
2439 | /* Check if NUM will fit in 8bit after shift. */ | |
2440 | return fits_in_signed_byte (num >> shift); | |
2441 | } | |
2442 | ||
a683cc34 SP |
2443 | static INLINE int |
2444 | fits_in_imm4 (offsetT num) | |
2445 | { | |
2446 | return (num & 0xf) == num; | |
2447 | } | |
2448 | ||
40fb9820 | 2449 | static i386_operand_type |
e3bb37b5 | 2450 | smallest_imm_type (offsetT num) |
252b5132 | 2451 | { |
40fb9820 | 2452 | i386_operand_type t; |
7ab9ffdd | 2453 | |
0dfbf9d7 | 2454 | operand_type_set (&t, 0); |
40fb9820 L |
2455 | t.bitfield.imm64 = 1; |
2456 | ||
2457 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
2458 | { |
2459 | /* This code is disabled on the 486 because all the Imm1 forms | |
2460 | in the opcode table are slower on the i486. They're the | |
2461 | versions with the implicitly specified single-position | |
2462 | displacement, which has another syntax if you really want to | |
2463 | use that form. */ | |
40fb9820 L |
2464 | t.bitfield.imm1 = 1; |
2465 | t.bitfield.imm8 = 1; | |
2466 | t.bitfield.imm8s = 1; | |
2467 | t.bitfield.imm16 = 1; | |
2468 | t.bitfield.imm32 = 1; | |
2469 | t.bitfield.imm32s = 1; | |
2470 | } | |
2471 | else if (fits_in_signed_byte (num)) | |
2472 | { | |
2473 | t.bitfield.imm8 = 1; | |
2474 | t.bitfield.imm8s = 1; | |
2475 | t.bitfield.imm16 = 1; | |
2476 | t.bitfield.imm32 = 1; | |
2477 | t.bitfield.imm32s = 1; | |
2478 | } | |
2479 | else if (fits_in_unsigned_byte (num)) | |
2480 | { | |
2481 | t.bitfield.imm8 = 1; | |
2482 | t.bitfield.imm16 = 1; | |
2483 | t.bitfield.imm32 = 1; | |
2484 | t.bitfield.imm32s = 1; | |
2485 | } | |
2486 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
2487 | { | |
2488 | t.bitfield.imm16 = 1; | |
2489 | t.bitfield.imm32 = 1; | |
2490 | t.bitfield.imm32s = 1; | |
2491 | } | |
2492 | else if (fits_in_signed_long (num)) | |
2493 | { | |
2494 | t.bitfield.imm32 = 1; | |
2495 | t.bitfield.imm32s = 1; | |
2496 | } | |
2497 | else if (fits_in_unsigned_long (num)) | |
2498 | t.bitfield.imm32 = 1; | |
2499 | ||
2500 | return t; | |
47926f60 | 2501 | } |
252b5132 | 2502 | |
847f7ad4 | 2503 | static offsetT |
e3bb37b5 | 2504 | offset_in_range (offsetT val, int size) |
847f7ad4 | 2505 | { |
508866be | 2506 | addressT mask; |
ba2adb93 | 2507 | |
847f7ad4 AM |
2508 | switch (size) |
2509 | { | |
508866be L |
2510 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
2511 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3b0ec529 | 2512 | case 4: mask = ((addressT) 2 << 31) - 1; break; |
3e73aa7c JH |
2513 | #ifdef BFD64 |
2514 | case 8: mask = ((addressT) 2 << 63) - 1; break; | |
2515 | #endif | |
47926f60 | 2516 | default: abort (); |
847f7ad4 AM |
2517 | } |
2518 | ||
9de868bf L |
2519 | #ifdef BFD64 |
2520 | /* If BFD64, sign extend val for 32bit address mode. */ | |
2521 | if (flag_code != CODE_64BIT | |
2522 | || i.prefix[ADDR_PREFIX]) | |
3e73aa7c JH |
2523 | if ((val & ~(((addressT) 2 << 31) - 1)) == 0) |
2524 | val = (val ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
fa289fb8 | 2525 | #endif |
ba2adb93 | 2526 | |
47926f60 | 2527 | if ((val & ~mask) != 0 && (val & ~mask) != ~mask) |
847f7ad4 AM |
2528 | { |
2529 | char buf1[40], buf2[40]; | |
2530 | ||
2531 | sprint_value (buf1, val); | |
2532 | sprint_value (buf2, val & mask); | |
2533 | as_warn (_("%s shortened to %s"), buf1, buf2); | |
2534 | } | |
2535 | return val & mask; | |
2536 | } | |
2537 | ||
c32fa91d L |
2538 | enum PREFIX_GROUP |
2539 | { | |
2540 | PREFIX_EXIST = 0, | |
2541 | PREFIX_LOCK, | |
2542 | PREFIX_REP, | |
04ef582a | 2543 | PREFIX_DS, |
c32fa91d L |
2544 | PREFIX_OTHER |
2545 | }; | |
2546 | ||
2547 | /* Returns | |
2548 | a. PREFIX_EXIST if attempting to add a prefix where one from the | |
2549 | same class already exists. | |
2550 | b. PREFIX_LOCK if lock prefix is added. | |
2551 | c. PREFIX_REP if rep/repne prefix is added. | |
04ef582a L |
2552 | d. PREFIX_DS if ds prefix is added. |
2553 | e. PREFIX_OTHER if other prefix is added. | |
c32fa91d L |
2554 | */ |
2555 | ||
2556 | static enum PREFIX_GROUP | |
e3bb37b5 | 2557 | add_prefix (unsigned int prefix) |
252b5132 | 2558 | { |
c32fa91d | 2559 | enum PREFIX_GROUP ret = PREFIX_OTHER; |
b1905489 | 2560 | unsigned int q; |
252b5132 | 2561 | |
29b0f896 AM |
2562 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
2563 | && flag_code == CODE_64BIT) | |
b1905489 | 2564 | { |
161a04f6 | 2565 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
44846f29 JB |
2566 | || (i.prefix[REX_PREFIX] & prefix & REX_R) |
2567 | || (i.prefix[REX_PREFIX] & prefix & REX_X) | |
2568 | || (i.prefix[REX_PREFIX] & prefix & REX_B)) | |
c32fa91d | 2569 | ret = PREFIX_EXIST; |
b1905489 JB |
2570 | q = REX_PREFIX; |
2571 | } | |
3e73aa7c | 2572 | else |
b1905489 JB |
2573 | { |
2574 | switch (prefix) | |
2575 | { | |
2576 | default: | |
2577 | abort (); | |
2578 | ||
b1905489 | 2579 | case DS_PREFIX_OPCODE: |
04ef582a L |
2580 | ret = PREFIX_DS; |
2581 | /* Fall through. */ | |
2582 | case CS_PREFIX_OPCODE: | |
b1905489 JB |
2583 | case ES_PREFIX_OPCODE: |
2584 | case FS_PREFIX_OPCODE: | |
2585 | case GS_PREFIX_OPCODE: | |
2586 | case SS_PREFIX_OPCODE: | |
2587 | q = SEG_PREFIX; | |
2588 | break; | |
2589 | ||
2590 | case REPNE_PREFIX_OPCODE: | |
2591 | case REPE_PREFIX_OPCODE: | |
c32fa91d L |
2592 | q = REP_PREFIX; |
2593 | ret = PREFIX_REP; | |
2594 | break; | |
2595 | ||
b1905489 | 2596 | case LOCK_PREFIX_OPCODE: |
c32fa91d L |
2597 | q = LOCK_PREFIX; |
2598 | ret = PREFIX_LOCK; | |
b1905489 JB |
2599 | break; |
2600 | ||
2601 | case FWAIT_OPCODE: | |
2602 | q = WAIT_PREFIX; | |
2603 | break; | |
2604 | ||
2605 | case ADDR_PREFIX_OPCODE: | |
2606 | q = ADDR_PREFIX; | |
2607 | break; | |
2608 | ||
2609 | case DATA_PREFIX_OPCODE: | |
2610 | q = DATA_PREFIX; | |
2611 | break; | |
2612 | } | |
2613 | if (i.prefix[q] != 0) | |
c32fa91d | 2614 | ret = PREFIX_EXIST; |
b1905489 | 2615 | } |
252b5132 | 2616 | |
b1905489 | 2617 | if (ret) |
252b5132 | 2618 | { |
b1905489 JB |
2619 | if (!i.prefix[q]) |
2620 | ++i.prefixes; | |
2621 | i.prefix[q] |= prefix; | |
252b5132 | 2622 | } |
b1905489 JB |
2623 | else |
2624 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 2625 | |
252b5132 RH |
2626 | return ret; |
2627 | } | |
2628 | ||
2629 | static void | |
78f12dd3 | 2630 | update_code_flag (int value, int check) |
eecb386c | 2631 | { |
78f12dd3 L |
2632 | PRINTF_LIKE ((*as_error)); |
2633 | ||
1e9cc1c2 | 2634 | flag_code = (enum flag_code) value; |
40fb9820 L |
2635 | if (flag_code == CODE_64BIT) |
2636 | { | |
2637 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2638 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
40fb9820 L |
2639 | } |
2640 | else | |
2641 | { | |
2642 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2643 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
40fb9820 L |
2644 | } |
2645 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c | 2646 | { |
78f12dd3 L |
2647 | if (check) |
2648 | as_error = as_fatal; | |
2649 | else | |
2650 | as_error = as_bad; | |
2651 | (*as_error) (_("64bit mode not supported on `%s'."), | |
2652 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2653 | } |
40fb9820 | 2654 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c | 2655 | { |
78f12dd3 L |
2656 | if (check) |
2657 | as_error = as_fatal; | |
2658 | else | |
2659 | as_error = as_bad; | |
2660 | (*as_error) (_("32bit mode not supported on `%s'."), | |
2661 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2662 | } |
eecb386c AM |
2663 | stackop_size = '\0'; |
2664 | } | |
2665 | ||
78f12dd3 L |
2666 | static void |
2667 | set_code_flag (int value) | |
2668 | { | |
2669 | update_code_flag (value, 0); | |
2670 | } | |
2671 | ||
eecb386c | 2672 | static void |
e3bb37b5 | 2673 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 2674 | { |
1e9cc1c2 | 2675 | flag_code = (enum flag_code) new_code_flag; |
40fb9820 L |
2676 | if (flag_code != CODE_16BIT) |
2677 | abort (); | |
2678 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2679 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
9306ca4a | 2680 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
2681 | } |
2682 | ||
2683 | static void | |
e3bb37b5 | 2684 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
2685 | { |
2686 | /* Find out if register prefixing is specified. */ | |
2687 | int ask_naked_reg = 0; | |
2688 | ||
2689 | SKIP_WHITESPACE (); | |
29b0f896 | 2690 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 | 2691 | { |
d02603dc NC |
2692 | char *string; |
2693 | int e = get_symbol_name (&string); | |
252b5132 | 2694 | |
47926f60 | 2695 | if (strcmp (string, "prefix") == 0) |
252b5132 | 2696 | ask_naked_reg = 1; |
47926f60 | 2697 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
2698 | ask_naked_reg = -1; |
2699 | else | |
d0b47220 | 2700 | as_bad (_("bad argument to syntax directive.")); |
d02603dc | 2701 | (void) restore_line_pointer (e); |
252b5132 RH |
2702 | } |
2703 | demand_empty_rest_of_line (); | |
c3332e24 | 2704 | |
252b5132 RH |
2705 | intel_syntax = syntax_flag; |
2706 | ||
2707 | if (ask_naked_reg == 0) | |
f86103b7 AM |
2708 | allow_naked_reg = (intel_syntax |
2709 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
2710 | else |
2711 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 2712 | |
ee86248c | 2713 | expr_set_rank (O_full_ptr, syntax_flag ? 10 : 0); |
7ab9ffdd | 2714 | |
e4a3b5a4 | 2715 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 2716 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 2717 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
2718 | } |
2719 | ||
1efbbeb4 L |
2720 | static void |
2721 | set_intel_mnemonic (int mnemonic_flag) | |
2722 | { | |
e1d4d893 | 2723 | intel_mnemonic = mnemonic_flag; |
1efbbeb4 L |
2724 | } |
2725 | ||
db51cc60 L |
2726 | static void |
2727 | set_allow_index_reg (int flag) | |
2728 | { | |
2729 | allow_index_reg = flag; | |
2730 | } | |
2731 | ||
cb19c032 | 2732 | static void |
7bab8ab5 | 2733 | set_check (int what) |
cb19c032 | 2734 | { |
7bab8ab5 JB |
2735 | enum check_kind *kind; |
2736 | const char *str; | |
2737 | ||
2738 | if (what) | |
2739 | { | |
2740 | kind = &operand_check; | |
2741 | str = "operand"; | |
2742 | } | |
2743 | else | |
2744 | { | |
2745 | kind = &sse_check; | |
2746 | str = "sse"; | |
2747 | } | |
2748 | ||
cb19c032 L |
2749 | SKIP_WHITESPACE (); |
2750 | ||
2751 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
2752 | { | |
d02603dc NC |
2753 | char *string; |
2754 | int e = get_symbol_name (&string); | |
cb19c032 L |
2755 | |
2756 | if (strcmp (string, "none") == 0) | |
7bab8ab5 | 2757 | *kind = check_none; |
cb19c032 | 2758 | else if (strcmp (string, "warning") == 0) |
7bab8ab5 | 2759 | *kind = check_warning; |
cb19c032 | 2760 | else if (strcmp (string, "error") == 0) |
7bab8ab5 | 2761 | *kind = check_error; |
cb19c032 | 2762 | else |
7bab8ab5 | 2763 | as_bad (_("bad argument to %s_check directive."), str); |
d02603dc | 2764 | (void) restore_line_pointer (e); |
cb19c032 L |
2765 | } |
2766 | else | |
7bab8ab5 | 2767 | as_bad (_("missing argument for %s_check directive"), str); |
cb19c032 L |
2768 | |
2769 | demand_empty_rest_of_line (); | |
2770 | } | |
2771 | ||
8a9036a4 L |
2772 | static void |
2773 | check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED, | |
1e9cc1c2 | 2774 | i386_cpu_flags new_flag ATTRIBUTE_UNUSED) |
8a9036a4 L |
2775 | { |
2776 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
2777 | static const char *arch; | |
2778 | ||
2779 | /* Intel LIOM is only supported on ELF. */ | |
2780 | if (!IS_ELF) | |
2781 | return; | |
2782 | ||
2783 | if (!arch) | |
2784 | { | |
2785 | /* Use cpu_arch_name if it is set in md_parse_option. Otherwise | |
2786 | use default_arch. */ | |
2787 | arch = cpu_arch_name; | |
2788 | if (!arch) | |
2789 | arch = default_arch; | |
2790 | } | |
2791 | ||
81486035 L |
2792 | /* If we are targeting Intel MCU, we must enable it. */ |
2793 | if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_IAMCU | |
2794 | || new_flag.bitfield.cpuiamcu) | |
2795 | return; | |
2796 | ||
3632d14b | 2797 | /* If we are targeting Intel L1OM, we must enable it. */ |
8a9036a4 | 2798 | if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_L1OM |
1e9cc1c2 | 2799 | || new_flag.bitfield.cpul1om) |
8a9036a4 | 2800 | return; |
76ba9986 | 2801 | |
7a9068fe L |
2802 | /* If we are targeting Intel K1OM, we must enable it. */ |
2803 | if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_K1OM | |
2804 | || new_flag.bitfield.cpuk1om) | |
2805 | return; | |
2806 | ||
8a9036a4 L |
2807 | as_bad (_("`%s' is not supported on `%s'"), name, arch); |
2808 | #endif | |
2809 | } | |
2810 | ||
e413e4e9 | 2811 | static void |
e3bb37b5 | 2812 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 2813 | { |
47926f60 | 2814 | SKIP_WHITESPACE (); |
e413e4e9 | 2815 | |
29b0f896 | 2816 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 | 2817 | { |
d02603dc NC |
2818 | char *string; |
2819 | int e = get_symbol_name (&string); | |
91d6fa6a | 2820 | unsigned int j; |
40fb9820 | 2821 | i386_cpu_flags flags; |
e413e4e9 | 2822 | |
91d6fa6a | 2823 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
e413e4e9 | 2824 | { |
91d6fa6a | 2825 | if (strcmp (string, cpu_arch[j].name) == 0) |
e413e4e9 | 2826 | { |
91d6fa6a | 2827 | check_cpu_arch_compatible (string, cpu_arch[j].flags); |
8a9036a4 | 2828 | |
5c6af06e JB |
2829 | if (*string != '.') |
2830 | { | |
91d6fa6a | 2831 | cpu_arch_name = cpu_arch[j].name; |
5c6af06e | 2832 | cpu_sub_arch_name = NULL; |
91d6fa6a | 2833 | cpu_arch_flags = cpu_arch[j].flags; |
40fb9820 L |
2834 | if (flag_code == CODE_64BIT) |
2835 | { | |
2836 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2837 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
2838 | } | |
2839 | else | |
2840 | { | |
2841 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2842 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
2843 | } | |
91d6fa6a NC |
2844 | cpu_arch_isa = cpu_arch[j].type; |
2845 | cpu_arch_isa_flags = cpu_arch[j].flags; | |
ccc9c027 L |
2846 | if (!cpu_arch_tune_set) |
2847 | { | |
2848 | cpu_arch_tune = cpu_arch_isa; | |
2849 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
2850 | } | |
5c6af06e JB |
2851 | break; |
2852 | } | |
40fb9820 | 2853 | |
293f5f65 L |
2854 | flags = cpu_flags_or (cpu_arch_flags, |
2855 | cpu_arch[j].flags); | |
81486035 | 2856 | |
5b64d091 | 2857 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
5c6af06e | 2858 | { |
6305a203 L |
2859 | if (cpu_sub_arch_name) |
2860 | { | |
2861 | char *name = cpu_sub_arch_name; | |
2862 | cpu_sub_arch_name = concat (name, | |
91d6fa6a | 2863 | cpu_arch[j].name, |
1bf57e9f | 2864 | (const char *) NULL); |
6305a203 L |
2865 | free (name); |
2866 | } | |
2867 | else | |
91d6fa6a | 2868 | cpu_sub_arch_name = xstrdup (cpu_arch[j].name); |
40fb9820 | 2869 | cpu_arch_flags = flags; |
a586129e | 2870 | cpu_arch_isa_flags = flags; |
5c6af06e | 2871 | } |
0089dace L |
2872 | else |
2873 | cpu_arch_isa_flags | |
2874 | = cpu_flags_or (cpu_arch_isa_flags, | |
2875 | cpu_arch[j].flags); | |
d02603dc | 2876 | (void) restore_line_pointer (e); |
5c6af06e JB |
2877 | demand_empty_rest_of_line (); |
2878 | return; | |
e413e4e9 AM |
2879 | } |
2880 | } | |
293f5f65 L |
2881 | |
2882 | if (*string == '.' && j >= ARRAY_SIZE (cpu_arch)) | |
2883 | { | |
33eaf5de | 2884 | /* Disable an ISA extension. */ |
293f5f65 L |
2885 | for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++) |
2886 | if (strcmp (string + 1, cpu_noarch [j].name) == 0) | |
2887 | { | |
2888 | flags = cpu_flags_and_not (cpu_arch_flags, | |
2889 | cpu_noarch[j].flags); | |
2890 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) | |
2891 | { | |
2892 | if (cpu_sub_arch_name) | |
2893 | { | |
2894 | char *name = cpu_sub_arch_name; | |
2895 | cpu_sub_arch_name = concat (name, string, | |
2896 | (const char *) NULL); | |
2897 | free (name); | |
2898 | } | |
2899 | else | |
2900 | cpu_sub_arch_name = xstrdup (string); | |
2901 | cpu_arch_flags = flags; | |
2902 | cpu_arch_isa_flags = flags; | |
2903 | } | |
2904 | (void) restore_line_pointer (e); | |
2905 | demand_empty_rest_of_line (); | |
2906 | return; | |
2907 | } | |
2908 | ||
2909 | j = ARRAY_SIZE (cpu_arch); | |
2910 | } | |
2911 | ||
91d6fa6a | 2912 | if (j >= ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
2913 | as_bad (_("no such architecture: `%s'"), string); |
2914 | ||
2915 | *input_line_pointer = e; | |
2916 | } | |
2917 | else | |
2918 | as_bad (_("missing cpu architecture")); | |
2919 | ||
fddf5b5b AM |
2920 | no_cond_jump_promotion = 0; |
2921 | if (*input_line_pointer == ',' | |
29b0f896 | 2922 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b | 2923 | { |
d02603dc NC |
2924 | char *string; |
2925 | char e; | |
2926 | ||
2927 | ++input_line_pointer; | |
2928 | e = get_symbol_name (&string); | |
fddf5b5b AM |
2929 | |
2930 | if (strcmp (string, "nojumps") == 0) | |
2931 | no_cond_jump_promotion = 1; | |
2932 | else if (strcmp (string, "jumps") == 0) | |
2933 | ; | |
2934 | else | |
2935 | as_bad (_("no such architecture modifier: `%s'"), string); | |
2936 | ||
d02603dc | 2937 | (void) restore_line_pointer (e); |
fddf5b5b AM |
2938 | } |
2939 | ||
e413e4e9 AM |
2940 | demand_empty_rest_of_line (); |
2941 | } | |
2942 | ||
8a9036a4 L |
2943 | enum bfd_architecture |
2944 | i386_arch (void) | |
2945 | { | |
3632d14b | 2946 | if (cpu_arch_isa == PROCESSOR_L1OM) |
8a9036a4 L |
2947 | { |
2948 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2949 | || flag_code != CODE_64BIT) | |
2950 | as_fatal (_("Intel L1OM is 64bit ELF only")); | |
2951 | return bfd_arch_l1om; | |
2952 | } | |
7a9068fe L |
2953 | else if (cpu_arch_isa == PROCESSOR_K1OM) |
2954 | { | |
2955 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2956 | || flag_code != CODE_64BIT) | |
2957 | as_fatal (_("Intel K1OM is 64bit ELF only")); | |
2958 | return bfd_arch_k1om; | |
2959 | } | |
81486035 L |
2960 | else if (cpu_arch_isa == PROCESSOR_IAMCU) |
2961 | { | |
2962 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2963 | || flag_code == CODE_64BIT) | |
2964 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
2965 | return bfd_arch_iamcu; | |
2966 | } | |
8a9036a4 L |
2967 | else |
2968 | return bfd_arch_i386; | |
2969 | } | |
2970 | ||
b9d79e03 | 2971 | unsigned long |
7016a5d5 | 2972 | i386_mach (void) |
b9d79e03 | 2973 | { |
351f65ca | 2974 | if (!strncmp (default_arch, "x86_64", 6)) |
8a9036a4 | 2975 | { |
3632d14b | 2976 | if (cpu_arch_isa == PROCESSOR_L1OM) |
8a9036a4 | 2977 | { |
351f65ca L |
2978 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour |
2979 | || default_arch[6] != '\0') | |
8a9036a4 L |
2980 | as_fatal (_("Intel L1OM is 64bit ELF only")); |
2981 | return bfd_mach_l1om; | |
2982 | } | |
7a9068fe L |
2983 | else if (cpu_arch_isa == PROCESSOR_K1OM) |
2984 | { | |
2985 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2986 | || default_arch[6] != '\0') | |
2987 | as_fatal (_("Intel K1OM is 64bit ELF only")); | |
2988 | return bfd_mach_k1om; | |
2989 | } | |
351f65ca | 2990 | else if (default_arch[6] == '\0') |
8a9036a4 | 2991 | return bfd_mach_x86_64; |
351f65ca L |
2992 | else |
2993 | return bfd_mach_x64_32; | |
8a9036a4 | 2994 | } |
5197d474 L |
2995 | else if (!strcmp (default_arch, "i386") |
2996 | || !strcmp (default_arch, "iamcu")) | |
81486035 L |
2997 | { |
2998 | if (cpu_arch_isa == PROCESSOR_IAMCU) | |
2999 | { | |
3000 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour) | |
3001 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
3002 | return bfd_mach_i386_iamcu; | |
3003 | } | |
3004 | else | |
3005 | return bfd_mach_i386_i386; | |
3006 | } | |
b9d79e03 | 3007 | else |
2b5d6a91 | 3008 | as_fatal (_("unknown architecture")); |
b9d79e03 | 3009 | } |
b9d79e03 | 3010 | \f |
252b5132 | 3011 | void |
7016a5d5 | 3012 | md_begin (void) |
252b5132 RH |
3013 | { |
3014 | const char *hash_err; | |
3015 | ||
86fa6981 L |
3016 | /* Support pseudo prefixes like {disp32}. */ |
3017 | lex_type ['{'] = LEX_BEGIN_NAME; | |
3018 | ||
47926f60 | 3019 | /* Initialize op_hash hash table. */ |
252b5132 RH |
3020 | op_hash = hash_new (); |
3021 | ||
3022 | { | |
d3ce72d0 | 3023 | const insn_template *optab; |
29b0f896 | 3024 | templates *core_optab; |
252b5132 | 3025 | |
47926f60 KH |
3026 | /* Setup for loop. */ |
3027 | optab = i386_optab; | |
add39d23 | 3028 | core_optab = XNEW (templates); |
252b5132 RH |
3029 | core_optab->start = optab; |
3030 | ||
3031 | while (1) | |
3032 | { | |
3033 | ++optab; | |
3034 | if (optab->name == NULL | |
3035 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
3036 | { | |
3037 | /* different name --> ship out current template list; | |
47926f60 | 3038 | add to hash table; & begin anew. */ |
252b5132 RH |
3039 | core_optab->end = optab; |
3040 | hash_err = hash_insert (op_hash, | |
3041 | (optab - 1)->name, | |
5a49b8ac | 3042 | (void *) core_optab); |
252b5132 RH |
3043 | if (hash_err) |
3044 | { | |
b37df7c4 | 3045 | as_fatal (_("can't hash %s: %s"), |
252b5132 RH |
3046 | (optab - 1)->name, |
3047 | hash_err); | |
3048 | } | |
3049 | if (optab->name == NULL) | |
3050 | break; | |
add39d23 | 3051 | core_optab = XNEW (templates); |
252b5132 RH |
3052 | core_optab->start = optab; |
3053 | } | |
3054 | } | |
3055 | } | |
3056 | ||
47926f60 | 3057 | /* Initialize reg_hash hash table. */ |
252b5132 RH |
3058 | reg_hash = hash_new (); |
3059 | { | |
29b0f896 | 3060 | const reg_entry *regtab; |
c3fe08fa | 3061 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 3062 | |
c3fe08fa | 3063 | for (regtab = i386_regtab; regtab_size--; regtab++) |
252b5132 | 3064 | { |
5a49b8ac | 3065 | hash_err = hash_insert (reg_hash, regtab->reg_name, (void *) regtab); |
252b5132 | 3066 | if (hash_err) |
b37df7c4 | 3067 | as_fatal (_("can't hash %s: %s"), |
3e73aa7c JH |
3068 | regtab->reg_name, |
3069 | hash_err); | |
252b5132 RH |
3070 | } |
3071 | } | |
3072 | ||
47926f60 | 3073 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 3074 | { |
29b0f896 AM |
3075 | int c; |
3076 | char *p; | |
252b5132 RH |
3077 | |
3078 | for (c = 0; c < 256; c++) | |
3079 | { | |
3882b010 | 3080 | if (ISDIGIT (c)) |
252b5132 RH |
3081 | { |
3082 | digit_chars[c] = c; | |
3083 | mnemonic_chars[c] = c; | |
3084 | register_chars[c] = c; | |
3085 | operand_chars[c] = c; | |
3086 | } | |
3882b010 | 3087 | else if (ISLOWER (c)) |
252b5132 RH |
3088 | { |
3089 | mnemonic_chars[c] = c; | |
3090 | register_chars[c] = c; | |
3091 | operand_chars[c] = c; | |
3092 | } | |
3882b010 | 3093 | else if (ISUPPER (c)) |
252b5132 | 3094 | { |
3882b010 | 3095 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
3096 | register_chars[c] = mnemonic_chars[c]; |
3097 | operand_chars[c] = c; | |
3098 | } | |
43234a1e | 3099 | else if (c == '{' || c == '}') |
86fa6981 L |
3100 | { |
3101 | mnemonic_chars[c] = c; | |
3102 | operand_chars[c] = c; | |
3103 | } | |
252b5132 | 3104 | |
3882b010 | 3105 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
3106 | identifier_chars[c] = c; |
3107 | else if (c >= 128) | |
3108 | { | |
3109 | identifier_chars[c] = c; | |
3110 | operand_chars[c] = c; | |
3111 | } | |
3112 | } | |
3113 | ||
3114 | #ifdef LEX_AT | |
3115 | identifier_chars['@'] = '@'; | |
32137342 NC |
3116 | #endif |
3117 | #ifdef LEX_QM | |
3118 | identifier_chars['?'] = '?'; | |
3119 | operand_chars['?'] = '?'; | |
252b5132 | 3120 | #endif |
252b5132 | 3121 | digit_chars['-'] = '-'; |
c0f3af97 | 3122 | mnemonic_chars['_'] = '_'; |
791fe849 | 3123 | mnemonic_chars['-'] = '-'; |
0003779b | 3124 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
3125 | identifier_chars['_'] = '_'; |
3126 | identifier_chars['.'] = '.'; | |
3127 | ||
3128 | for (p = operand_special_chars; *p != '\0'; p++) | |
3129 | operand_chars[(unsigned char) *p] = *p; | |
3130 | } | |
3131 | ||
a4447b93 RH |
3132 | if (flag_code == CODE_64BIT) |
3133 | { | |
ca19b261 KT |
3134 | #if defined (OBJ_COFF) && defined (TE_PE) |
3135 | x86_dwarf2_return_column = (OUTPUT_FLAVOR == bfd_target_coff_flavour | |
3136 | ? 32 : 16); | |
3137 | #else | |
a4447b93 | 3138 | x86_dwarf2_return_column = 16; |
ca19b261 | 3139 | #endif |
61ff971f | 3140 | x86_cie_data_alignment = -8; |
a4447b93 RH |
3141 | } |
3142 | else | |
3143 | { | |
3144 | x86_dwarf2_return_column = 8; | |
3145 | x86_cie_data_alignment = -4; | |
3146 | } | |
e379e5f3 L |
3147 | |
3148 | /* NB: FUSED_JCC_PADDING frag must have sufficient room so that it | |
3149 | can be turned into BRANCH_PREFIX frag. */ | |
3150 | if (align_branch_prefix_size > MAX_FUSED_JCC_PADDING_SIZE) | |
3151 | abort (); | |
252b5132 RH |
3152 | } |
3153 | ||
3154 | void | |
e3bb37b5 | 3155 | i386_print_statistics (FILE *file) |
252b5132 RH |
3156 | { |
3157 | hash_print_statistics (file, "i386 opcode", op_hash); | |
3158 | hash_print_statistics (file, "i386 register", reg_hash); | |
3159 | } | |
3160 | \f | |
252b5132 RH |
3161 | #ifdef DEBUG386 |
3162 | ||
ce8a8b2f | 3163 | /* Debugging routines for md_assemble. */ |
d3ce72d0 | 3164 | static void pte (insn_template *); |
40fb9820 | 3165 | static void pt (i386_operand_type); |
e3bb37b5 L |
3166 | static void pe (expressionS *); |
3167 | static void ps (symbolS *); | |
252b5132 RH |
3168 | |
3169 | static void | |
2c703856 | 3170 | pi (const char *line, i386_insn *x) |
252b5132 | 3171 | { |
09137c09 | 3172 | unsigned int j; |
252b5132 RH |
3173 | |
3174 | fprintf (stdout, "%s: template ", line); | |
3175 | pte (&x->tm); | |
09f131f2 JH |
3176 | fprintf (stdout, " address: base %s index %s scale %x\n", |
3177 | x->base_reg ? x->base_reg->reg_name : "none", | |
3178 | x->index_reg ? x->index_reg->reg_name : "none", | |
3179 | x->log2_scale_factor); | |
3180 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 3181 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
3182 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
3183 | x->sib.base, x->sib.index, x->sib.scale); | |
3184 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
3185 | (x->rex & REX_W) != 0, |
3186 | (x->rex & REX_R) != 0, | |
3187 | (x->rex & REX_X) != 0, | |
3188 | (x->rex & REX_B) != 0); | |
09137c09 | 3189 | for (j = 0; j < x->operands; j++) |
252b5132 | 3190 | { |
09137c09 SP |
3191 | fprintf (stdout, " #%d: ", j + 1); |
3192 | pt (x->types[j]); | |
252b5132 | 3193 | fprintf (stdout, "\n"); |
bab6aec1 | 3194 | if (x->types[j].bitfield.class == Reg |
3528c362 JB |
3195 | || x->types[j].bitfield.class == RegMMX |
3196 | || x->types[j].bitfield.class == RegSIMD | |
00cee14f | 3197 | || x->types[j].bitfield.class == SReg |
4a5c67ed JB |
3198 | || x->types[j].bitfield.class == RegCR |
3199 | || x->types[j].bitfield.class == RegDR | |
3200 | || x->types[j].bitfield.class == RegTR) | |
09137c09 SP |
3201 | fprintf (stdout, "%s\n", x->op[j].regs->reg_name); |
3202 | if (operand_type_check (x->types[j], imm)) | |
3203 | pe (x->op[j].imms); | |
3204 | if (operand_type_check (x->types[j], disp)) | |
3205 | pe (x->op[j].disps); | |
252b5132 RH |
3206 | } |
3207 | } | |
3208 | ||
3209 | static void | |
d3ce72d0 | 3210 | pte (insn_template *t) |
252b5132 | 3211 | { |
09137c09 | 3212 | unsigned int j; |
252b5132 | 3213 | fprintf (stdout, " %d operands ", t->operands); |
47926f60 | 3214 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
3215 | if (t->extension_opcode != None) |
3216 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 3217 | if (t->opcode_modifier.d) |
252b5132 | 3218 | fprintf (stdout, "D"); |
40fb9820 | 3219 | if (t->opcode_modifier.w) |
252b5132 RH |
3220 | fprintf (stdout, "W"); |
3221 | fprintf (stdout, "\n"); | |
09137c09 | 3222 | for (j = 0; j < t->operands; j++) |
252b5132 | 3223 | { |
09137c09 SP |
3224 | fprintf (stdout, " #%d type ", j + 1); |
3225 | pt (t->operand_types[j]); | |
252b5132 RH |
3226 | fprintf (stdout, "\n"); |
3227 | } | |
3228 | } | |
3229 | ||
3230 | static void | |
e3bb37b5 | 3231 | pe (expressionS *e) |
252b5132 | 3232 | { |
24eab124 | 3233 | fprintf (stdout, " operation %d\n", e->X_op); |
b77ad1d4 AM |
3234 | fprintf (stdout, " add_number %ld (%lx)\n", |
3235 | (long) e->X_add_number, (long) e->X_add_number); | |
252b5132 RH |
3236 | if (e->X_add_symbol) |
3237 | { | |
3238 | fprintf (stdout, " add_symbol "); | |
3239 | ps (e->X_add_symbol); | |
3240 | fprintf (stdout, "\n"); | |
3241 | } | |
3242 | if (e->X_op_symbol) | |
3243 | { | |
3244 | fprintf (stdout, " op_symbol "); | |
3245 | ps (e->X_op_symbol); | |
3246 | fprintf (stdout, "\n"); | |
3247 | } | |
3248 | } | |
3249 | ||
3250 | static void | |
e3bb37b5 | 3251 | ps (symbolS *s) |
252b5132 RH |
3252 | { |
3253 | fprintf (stdout, "%s type %s%s", | |
3254 | S_GET_NAME (s), | |
3255 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
3256 | segment_name (S_GET_SEGMENT (s))); | |
3257 | } | |
3258 | ||
7b81dfbb | 3259 | static struct type_name |
252b5132 | 3260 | { |
40fb9820 L |
3261 | i386_operand_type mask; |
3262 | const char *name; | |
252b5132 | 3263 | } |
7b81dfbb | 3264 | const type_names[] = |
252b5132 | 3265 | { |
40fb9820 L |
3266 | { OPERAND_TYPE_REG8, "r8" }, |
3267 | { OPERAND_TYPE_REG16, "r16" }, | |
3268 | { OPERAND_TYPE_REG32, "r32" }, | |
3269 | { OPERAND_TYPE_REG64, "r64" }, | |
2c703856 JB |
3270 | { OPERAND_TYPE_ACC8, "acc8" }, |
3271 | { OPERAND_TYPE_ACC16, "acc16" }, | |
3272 | { OPERAND_TYPE_ACC32, "acc32" }, | |
3273 | { OPERAND_TYPE_ACC64, "acc64" }, | |
40fb9820 L |
3274 | { OPERAND_TYPE_IMM8, "i8" }, |
3275 | { OPERAND_TYPE_IMM8, "i8s" }, | |
3276 | { OPERAND_TYPE_IMM16, "i16" }, | |
3277 | { OPERAND_TYPE_IMM32, "i32" }, | |
3278 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
3279 | { OPERAND_TYPE_IMM64, "i64" }, | |
3280 | { OPERAND_TYPE_IMM1, "i1" }, | |
3281 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
3282 | { OPERAND_TYPE_DISP8, "d8" }, | |
3283 | { OPERAND_TYPE_DISP16, "d16" }, | |
3284 | { OPERAND_TYPE_DISP32, "d32" }, | |
3285 | { OPERAND_TYPE_DISP32S, "d32s" }, | |
3286 | { OPERAND_TYPE_DISP64, "d64" }, | |
3287 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
3288 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
3289 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
3290 | { OPERAND_TYPE_TEST, "test reg" }, | |
3291 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
3292 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
3293 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
21df382b | 3294 | { OPERAND_TYPE_SREG, "SReg" }, |
40fb9820 L |
3295 | { OPERAND_TYPE_REGMMX, "rMMX" }, |
3296 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
0349dc08 | 3297 | { OPERAND_TYPE_REGYMM, "rYMM" }, |
43234a1e L |
3298 | { OPERAND_TYPE_REGZMM, "rZMM" }, |
3299 | { OPERAND_TYPE_REGMASK, "Mask reg" }, | |
252b5132 RH |
3300 | }; |
3301 | ||
3302 | static void | |
40fb9820 | 3303 | pt (i386_operand_type t) |
252b5132 | 3304 | { |
40fb9820 | 3305 | unsigned int j; |
c6fb90c8 | 3306 | i386_operand_type a; |
252b5132 | 3307 | |
40fb9820 | 3308 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
3309 | { |
3310 | a = operand_type_and (t, type_names[j].mask); | |
2c703856 | 3311 | if (operand_type_equal (&a, &type_names[j].mask)) |
c6fb90c8 L |
3312 | fprintf (stdout, "%s, ", type_names[j].name); |
3313 | } | |
252b5132 RH |
3314 | fflush (stdout); |
3315 | } | |
3316 | ||
3317 | #endif /* DEBUG386 */ | |
3318 | \f | |
252b5132 | 3319 | static bfd_reloc_code_real_type |
3956db08 | 3320 | reloc (unsigned int size, |
64e74474 AM |
3321 | int pcrel, |
3322 | int sign, | |
3323 | bfd_reloc_code_real_type other) | |
252b5132 | 3324 | { |
47926f60 | 3325 | if (other != NO_RELOC) |
3956db08 | 3326 | { |
91d6fa6a | 3327 | reloc_howto_type *rel; |
3956db08 JB |
3328 | |
3329 | if (size == 8) | |
3330 | switch (other) | |
3331 | { | |
64e74474 AM |
3332 | case BFD_RELOC_X86_64_GOT32: |
3333 | return BFD_RELOC_X86_64_GOT64; | |
3334 | break; | |
553d1284 L |
3335 | case BFD_RELOC_X86_64_GOTPLT64: |
3336 | return BFD_RELOC_X86_64_GOTPLT64; | |
3337 | break; | |
64e74474 AM |
3338 | case BFD_RELOC_X86_64_PLTOFF64: |
3339 | return BFD_RELOC_X86_64_PLTOFF64; | |
3340 | break; | |
3341 | case BFD_RELOC_X86_64_GOTPC32: | |
3342 | other = BFD_RELOC_X86_64_GOTPC64; | |
3343 | break; | |
3344 | case BFD_RELOC_X86_64_GOTPCREL: | |
3345 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
3346 | break; | |
3347 | case BFD_RELOC_X86_64_TPOFF32: | |
3348 | other = BFD_RELOC_X86_64_TPOFF64; | |
3349 | break; | |
3350 | case BFD_RELOC_X86_64_DTPOFF32: | |
3351 | other = BFD_RELOC_X86_64_DTPOFF64; | |
3352 | break; | |
3353 | default: | |
3354 | break; | |
3956db08 | 3355 | } |
e05278af | 3356 | |
8ce3d284 | 3357 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
3358 | if (other == BFD_RELOC_SIZE32) |
3359 | { | |
3360 | if (size == 8) | |
1ab668bf | 3361 | other = BFD_RELOC_SIZE64; |
8fd4256d | 3362 | if (pcrel) |
1ab668bf AM |
3363 | { |
3364 | as_bad (_("there are no pc-relative size relocations")); | |
3365 | return NO_RELOC; | |
3366 | } | |
8fd4256d | 3367 | } |
8ce3d284 | 3368 | #endif |
8fd4256d | 3369 | |
e05278af | 3370 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ |
f2d8a97c | 3371 | if (size == 4 && (flag_code != CODE_64BIT || disallow_64bit_reloc)) |
e05278af JB |
3372 | sign = -1; |
3373 | ||
91d6fa6a NC |
3374 | rel = bfd_reloc_type_lookup (stdoutput, other); |
3375 | if (!rel) | |
3956db08 | 3376 | as_bad (_("unknown relocation (%u)"), other); |
91d6fa6a | 3377 | else if (size != bfd_get_reloc_size (rel)) |
3956db08 | 3378 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), |
91d6fa6a | 3379 | bfd_get_reloc_size (rel), |
3956db08 | 3380 | size); |
91d6fa6a | 3381 | else if (pcrel && !rel->pc_relative) |
3956db08 | 3382 | as_bad (_("non-pc-relative relocation for pc-relative field")); |
91d6fa6a | 3383 | else if ((rel->complain_on_overflow == complain_overflow_signed |
3956db08 | 3384 | && !sign) |
91d6fa6a | 3385 | || (rel->complain_on_overflow == complain_overflow_unsigned |
64e74474 | 3386 | && sign > 0)) |
3956db08 JB |
3387 | as_bad (_("relocated field and relocation type differ in signedness")); |
3388 | else | |
3389 | return other; | |
3390 | return NO_RELOC; | |
3391 | } | |
252b5132 RH |
3392 | |
3393 | if (pcrel) | |
3394 | { | |
3e73aa7c | 3395 | if (!sign) |
3956db08 | 3396 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
3397 | switch (size) |
3398 | { | |
3399 | case 1: return BFD_RELOC_8_PCREL; | |
3400 | case 2: return BFD_RELOC_16_PCREL; | |
d258b828 | 3401 | case 4: return BFD_RELOC_32_PCREL; |
d6ab8113 | 3402 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 3403 | } |
3956db08 | 3404 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
3405 | } |
3406 | else | |
3407 | { | |
3956db08 | 3408 | if (sign > 0) |
e5cb08ac | 3409 | switch (size) |
3e73aa7c JH |
3410 | { |
3411 | case 4: return BFD_RELOC_X86_64_32S; | |
3412 | } | |
3413 | else | |
3414 | switch (size) | |
3415 | { | |
3416 | case 1: return BFD_RELOC_8; | |
3417 | case 2: return BFD_RELOC_16; | |
3418 | case 4: return BFD_RELOC_32; | |
3419 | case 8: return BFD_RELOC_64; | |
3420 | } | |
3956db08 JB |
3421 | as_bad (_("cannot do %s %u byte relocation"), |
3422 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
3423 | } |
3424 | ||
0cc9e1d3 | 3425 | return NO_RELOC; |
252b5132 RH |
3426 | } |
3427 | ||
47926f60 KH |
3428 | /* Here we decide which fixups can be adjusted to make them relative to |
3429 | the beginning of the section instead of the symbol. Basically we need | |
3430 | to make sure that the dynamic relocations are done correctly, so in | |
3431 | some cases we force the original symbol to be used. */ | |
3432 | ||
252b5132 | 3433 | int |
e3bb37b5 | 3434 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 3435 | { |
6d249963 | 3436 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 3437 | if (!IS_ELF) |
31312f95 AM |
3438 | return 1; |
3439 | ||
a161fe53 AM |
3440 | /* Don't adjust pc-relative references to merge sections in 64-bit |
3441 | mode. */ | |
3442 | if (use_rela_relocations | |
3443 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
3444 | && fixP->fx_pcrel) | |
252b5132 | 3445 | return 0; |
31312f95 | 3446 | |
8d01d9a9 AJ |
3447 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
3448 | and changed later by validate_fix. */ | |
3449 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
3450 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
3451 | return 0; | |
3452 | ||
8fd4256d L |
3453 | /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol |
3454 | for size relocations. */ | |
3455 | if (fixP->fx_r_type == BFD_RELOC_SIZE32 | |
3456 | || fixP->fx_r_type == BFD_RELOC_SIZE64 | |
3457 | || fixP->fx_r_type == BFD_RELOC_386_GOTOFF | |
252b5132 | 3458 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 |
02a86693 | 3459 | || fixP->fx_r_type == BFD_RELOC_386_GOT32X |
13ae64f3 JJ |
3460 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
3461 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
3462 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
3463 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
3464 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
3465 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
3466 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
3467 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
3468 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
3469 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c | 3470 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 |
80b3ee89 | 3471 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
56ceb5b5 L |
3472 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX |
3473 | || fixP->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX | |
bffbf940 JJ |
3474 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
3475 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
3476 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 3477 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
3478 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
3479 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
3480 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
3481 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
3482 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
3483 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
3484 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
3485 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
3486 | return 0; | |
31312f95 | 3487 | #endif |
252b5132 RH |
3488 | return 1; |
3489 | } | |
252b5132 | 3490 | |
b4cac588 | 3491 | static int |
e3bb37b5 | 3492 | intel_float_operand (const char *mnemonic) |
252b5132 | 3493 | { |
9306ca4a JB |
3494 | /* Note that the value returned is meaningful only for opcodes with (memory) |
3495 | operands, hence the code here is free to improperly handle opcodes that | |
3496 | have no operands (for better performance and smaller code). */ | |
3497 | ||
3498 | if (mnemonic[0] != 'f') | |
3499 | return 0; /* non-math */ | |
3500 | ||
3501 | switch (mnemonic[1]) | |
3502 | { | |
3503 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
3504 | the fs segment override prefix not currently handled because no | |
3505 | call path can make opcodes without operands get here */ | |
3506 | case 'i': | |
3507 | return 2 /* integer op */; | |
3508 | case 'l': | |
3509 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
3510 | return 3; /* fldcw/fldenv */ | |
3511 | break; | |
3512 | case 'n': | |
3513 | if (mnemonic[2] != 'o' /* fnop */) | |
3514 | return 3; /* non-waiting control op */ | |
3515 | break; | |
3516 | case 'r': | |
3517 | if (mnemonic[2] == 's') | |
3518 | return 3; /* frstor/frstpm */ | |
3519 | break; | |
3520 | case 's': | |
3521 | if (mnemonic[2] == 'a') | |
3522 | return 3; /* fsave */ | |
3523 | if (mnemonic[2] == 't') | |
3524 | { | |
3525 | switch (mnemonic[3]) | |
3526 | { | |
3527 | case 'c': /* fstcw */ | |
3528 | case 'd': /* fstdw */ | |
3529 | case 'e': /* fstenv */ | |
3530 | case 's': /* fsts[gw] */ | |
3531 | return 3; | |
3532 | } | |
3533 | } | |
3534 | break; | |
3535 | case 'x': | |
3536 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
3537 | return 0; /* fxsave/fxrstor are not really math ops */ | |
3538 | break; | |
3539 | } | |
252b5132 | 3540 | |
9306ca4a | 3541 | return 1; |
252b5132 RH |
3542 | } |
3543 | ||
c0f3af97 L |
3544 | /* Build the VEX prefix. */ |
3545 | ||
3546 | static void | |
d3ce72d0 | 3547 | build_vex_prefix (const insn_template *t) |
c0f3af97 L |
3548 | { |
3549 | unsigned int register_specifier; | |
3550 | unsigned int implied_prefix; | |
3551 | unsigned int vector_length; | |
03751133 | 3552 | unsigned int w; |
c0f3af97 L |
3553 | |
3554 | /* Check register specifier. */ | |
3555 | if (i.vex.register_specifier) | |
43234a1e L |
3556 | { |
3557 | register_specifier = | |
3558 | ~register_number (i.vex.register_specifier) & 0xf; | |
3559 | gas_assert ((i.vex.register_specifier->reg_flags & RegVRex) == 0); | |
3560 | } | |
c0f3af97 L |
3561 | else |
3562 | register_specifier = 0xf; | |
3563 | ||
79f0fa25 L |
3564 | /* Use 2-byte VEX prefix by swapping destination and source operand |
3565 | if there are more than 1 register operand. */ | |
3566 | if (i.reg_operands > 1 | |
3567 | && i.vec_encoding != vex_encoding_vex3 | |
86fa6981 | 3568 | && i.dir_encoding == dir_encoding_default |
fa99fab2 | 3569 | && i.operands == i.reg_operands |
dbbc8b7e | 3570 | && operand_type_equal (&i.types[0], &i.types[i.operands - 1]) |
7f399153 | 3571 | && i.tm.opcode_modifier.vexopcode == VEX0F |
dbbc8b7e | 3572 | && (i.tm.opcode_modifier.load || i.tm.opcode_modifier.d) |
fa99fab2 L |
3573 | && i.rex == REX_B) |
3574 | { | |
3575 | unsigned int xchg = i.operands - 1; | |
3576 | union i386_op temp_op; | |
3577 | i386_operand_type temp_type; | |
3578 | ||
3579 | temp_type = i.types[xchg]; | |
3580 | i.types[xchg] = i.types[0]; | |
3581 | i.types[0] = temp_type; | |
3582 | temp_op = i.op[xchg]; | |
3583 | i.op[xchg] = i.op[0]; | |
3584 | i.op[0] = temp_op; | |
3585 | ||
9c2799c2 | 3586 | gas_assert (i.rm.mode == 3); |
fa99fab2 L |
3587 | |
3588 | i.rex = REX_R; | |
3589 | xchg = i.rm.regmem; | |
3590 | i.rm.regmem = i.rm.reg; | |
3591 | i.rm.reg = xchg; | |
3592 | ||
dbbc8b7e JB |
3593 | if (i.tm.opcode_modifier.d) |
3594 | i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e | |
3595 | ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD; | |
3596 | else /* Use the next insn. */ | |
3597 | i.tm = t[1]; | |
fa99fab2 L |
3598 | } |
3599 | ||
79dec6b7 JB |
3600 | /* Use 2-byte VEX prefix by swapping commutative source operands if there |
3601 | are no memory operands and at least 3 register ones. */ | |
3602 | if (i.reg_operands >= 3 | |
3603 | && i.vec_encoding != vex_encoding_vex3 | |
3604 | && i.reg_operands == i.operands - i.imm_operands | |
3605 | && i.tm.opcode_modifier.vex | |
3606 | && i.tm.opcode_modifier.commutative | |
3607 | && (i.tm.opcode_modifier.sse2avx || optimize > 1) | |
3608 | && i.rex == REX_B | |
3609 | && i.vex.register_specifier | |
3610 | && !(i.vex.register_specifier->reg_flags & RegRex)) | |
3611 | { | |
3612 | unsigned int xchg = i.operands - i.reg_operands; | |
3613 | union i386_op temp_op; | |
3614 | i386_operand_type temp_type; | |
3615 | ||
3616 | gas_assert (i.tm.opcode_modifier.vexopcode == VEX0F); | |
3617 | gas_assert (!i.tm.opcode_modifier.sae); | |
3618 | gas_assert (operand_type_equal (&i.types[i.operands - 2], | |
3619 | &i.types[i.operands - 3])); | |
3620 | gas_assert (i.rm.mode == 3); | |
3621 | ||
3622 | temp_type = i.types[xchg]; | |
3623 | i.types[xchg] = i.types[xchg + 1]; | |
3624 | i.types[xchg + 1] = temp_type; | |
3625 | temp_op = i.op[xchg]; | |
3626 | i.op[xchg] = i.op[xchg + 1]; | |
3627 | i.op[xchg + 1] = temp_op; | |
3628 | ||
3629 | i.rex = 0; | |
3630 | xchg = i.rm.regmem | 8; | |
3631 | i.rm.regmem = ~register_specifier & 0xf; | |
3632 | gas_assert (!(i.rm.regmem & 8)); | |
3633 | i.vex.register_specifier += xchg - i.rm.regmem; | |
3634 | register_specifier = ~xchg & 0xf; | |
3635 | } | |
3636 | ||
539f890d L |
3637 | if (i.tm.opcode_modifier.vex == VEXScalar) |
3638 | vector_length = avxscalar; | |
10c17abd JB |
3639 | else if (i.tm.opcode_modifier.vex == VEX256) |
3640 | vector_length = 1; | |
539f890d | 3641 | else |
10c17abd | 3642 | { |
56522fc5 | 3643 | unsigned int op; |
10c17abd | 3644 | |
c7213af9 L |
3645 | /* Determine vector length from the last multi-length vector |
3646 | operand. */ | |
10c17abd | 3647 | vector_length = 0; |
56522fc5 | 3648 | for (op = t->operands; op--;) |
10c17abd JB |
3649 | if (t->operand_types[op].bitfield.xmmword |
3650 | && t->operand_types[op].bitfield.ymmword | |
3651 | && i.types[op].bitfield.ymmword) | |
3652 | { | |
3653 | vector_length = 1; | |
3654 | break; | |
3655 | } | |
3656 | } | |
c0f3af97 L |
3657 | |
3658 | switch ((i.tm.base_opcode >> 8) & 0xff) | |
3659 | { | |
3660 | case 0: | |
3661 | implied_prefix = 0; | |
3662 | break; | |
3663 | case DATA_PREFIX_OPCODE: | |
3664 | implied_prefix = 1; | |
3665 | break; | |
3666 | case REPE_PREFIX_OPCODE: | |
3667 | implied_prefix = 2; | |
3668 | break; | |
3669 | case REPNE_PREFIX_OPCODE: | |
3670 | implied_prefix = 3; | |
3671 | break; | |
3672 | default: | |
3673 | abort (); | |
3674 | } | |
3675 | ||
03751133 L |
3676 | /* Check the REX.W bit and VEXW. */ |
3677 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3678 | w = (vexwig == vexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3679 | else if (i.tm.opcode_modifier.vexw) | |
3680 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3681 | else | |
931d03b7 | 3682 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : vexwig == vexw1) ? 1 : 0; |
03751133 | 3683 | |
c0f3af97 | 3684 | /* Use 2-byte VEX prefix if possible. */ |
03751133 L |
3685 | if (w == 0 |
3686 | && i.vec_encoding != vex_encoding_vex3 | |
86fa6981 | 3687 | && i.tm.opcode_modifier.vexopcode == VEX0F |
c0f3af97 L |
3688 | && (i.rex & (REX_W | REX_X | REX_B)) == 0) |
3689 | { | |
3690 | /* 2-byte VEX prefix. */ | |
3691 | unsigned int r; | |
3692 | ||
3693 | i.vex.length = 2; | |
3694 | i.vex.bytes[0] = 0xc5; | |
3695 | ||
3696 | /* Check the REX.R bit. */ | |
3697 | r = (i.rex & REX_R) ? 0 : 1; | |
3698 | i.vex.bytes[1] = (r << 7 | |
3699 | | register_specifier << 3 | |
3700 | | vector_length << 2 | |
3701 | | implied_prefix); | |
3702 | } | |
3703 | else | |
3704 | { | |
3705 | /* 3-byte VEX prefix. */ | |
03751133 | 3706 | unsigned int m; |
c0f3af97 | 3707 | |
f88c9eb0 | 3708 | i.vex.length = 3; |
f88c9eb0 | 3709 | |
7f399153 | 3710 | switch (i.tm.opcode_modifier.vexopcode) |
5dd85c99 | 3711 | { |
7f399153 L |
3712 | case VEX0F: |
3713 | m = 0x1; | |
80de6e00 | 3714 | i.vex.bytes[0] = 0xc4; |
7f399153 L |
3715 | break; |
3716 | case VEX0F38: | |
3717 | m = 0x2; | |
80de6e00 | 3718 | i.vex.bytes[0] = 0xc4; |
7f399153 L |
3719 | break; |
3720 | case VEX0F3A: | |
3721 | m = 0x3; | |
80de6e00 | 3722 | i.vex.bytes[0] = 0xc4; |
7f399153 L |
3723 | break; |
3724 | case XOP08: | |
5dd85c99 SP |
3725 | m = 0x8; |
3726 | i.vex.bytes[0] = 0x8f; | |
7f399153 L |
3727 | break; |
3728 | case XOP09: | |
f88c9eb0 SP |
3729 | m = 0x9; |
3730 | i.vex.bytes[0] = 0x8f; | |
7f399153 L |
3731 | break; |
3732 | case XOP0A: | |
f88c9eb0 SP |
3733 | m = 0xa; |
3734 | i.vex.bytes[0] = 0x8f; | |
7f399153 L |
3735 | break; |
3736 | default: | |
3737 | abort (); | |
f88c9eb0 | 3738 | } |
c0f3af97 | 3739 | |
c0f3af97 L |
3740 | /* The high 3 bits of the second VEX byte are 1's compliment |
3741 | of RXB bits from REX. */ | |
3742 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m; | |
3743 | ||
c0f3af97 L |
3744 | i.vex.bytes[2] = (w << 7 |
3745 | | register_specifier << 3 | |
3746 | | vector_length << 2 | |
3747 | | implied_prefix); | |
3748 | } | |
3749 | } | |
3750 | ||
e771e7c9 JB |
3751 | static INLINE bfd_boolean |
3752 | is_evex_encoding (const insn_template *t) | |
3753 | { | |
7091c612 | 3754 | return t->opcode_modifier.evex || t->opcode_modifier.disp8memshift |
e771e7c9 | 3755 | || t->opcode_modifier.broadcast || t->opcode_modifier.masking |
a80195f1 | 3756 | || t->opcode_modifier.sae; |
e771e7c9 JB |
3757 | } |
3758 | ||
7a8655d2 JB |
3759 | static INLINE bfd_boolean |
3760 | is_any_vex_encoding (const insn_template *t) | |
3761 | { | |
3762 | return t->opcode_modifier.vex || t->opcode_modifier.vexopcode | |
3763 | || is_evex_encoding (t); | |
3764 | } | |
3765 | ||
43234a1e L |
3766 | /* Build the EVEX prefix. */ |
3767 | ||
3768 | static void | |
3769 | build_evex_prefix (void) | |
3770 | { | |
3771 | unsigned int register_specifier; | |
3772 | unsigned int implied_prefix; | |
3773 | unsigned int m, w; | |
3774 | rex_byte vrex_used = 0; | |
3775 | ||
3776 | /* Check register specifier. */ | |
3777 | if (i.vex.register_specifier) | |
3778 | { | |
3779 | gas_assert ((i.vrex & REX_X) == 0); | |
3780 | ||
3781 | register_specifier = i.vex.register_specifier->reg_num; | |
3782 | if ((i.vex.register_specifier->reg_flags & RegRex)) | |
3783 | register_specifier += 8; | |
3784 | /* The upper 16 registers are encoded in the fourth byte of the | |
3785 | EVEX prefix. */ | |
3786 | if (!(i.vex.register_specifier->reg_flags & RegVRex)) | |
3787 | i.vex.bytes[3] = 0x8; | |
3788 | register_specifier = ~register_specifier & 0xf; | |
3789 | } | |
3790 | else | |
3791 | { | |
3792 | register_specifier = 0xf; | |
3793 | ||
3794 | /* Encode upper 16 vector index register in the fourth byte of | |
3795 | the EVEX prefix. */ | |
3796 | if (!(i.vrex & REX_X)) | |
3797 | i.vex.bytes[3] = 0x8; | |
3798 | else | |
3799 | vrex_used |= REX_X; | |
3800 | } | |
3801 | ||
3802 | switch ((i.tm.base_opcode >> 8) & 0xff) | |
3803 | { | |
3804 | case 0: | |
3805 | implied_prefix = 0; | |
3806 | break; | |
3807 | case DATA_PREFIX_OPCODE: | |
3808 | implied_prefix = 1; | |
3809 | break; | |
3810 | case REPE_PREFIX_OPCODE: | |
3811 | implied_prefix = 2; | |
3812 | break; | |
3813 | case REPNE_PREFIX_OPCODE: | |
3814 | implied_prefix = 3; | |
3815 | break; | |
3816 | default: | |
3817 | abort (); | |
3818 | } | |
3819 | ||
3820 | /* 4 byte EVEX prefix. */ | |
3821 | i.vex.length = 4; | |
3822 | i.vex.bytes[0] = 0x62; | |
3823 | ||
3824 | /* mmmm bits. */ | |
3825 | switch (i.tm.opcode_modifier.vexopcode) | |
3826 | { | |
3827 | case VEX0F: | |
3828 | m = 1; | |
3829 | break; | |
3830 | case VEX0F38: | |
3831 | m = 2; | |
3832 | break; | |
3833 | case VEX0F3A: | |
3834 | m = 3; | |
3835 | break; | |
3836 | default: | |
3837 | abort (); | |
3838 | break; | |
3839 | } | |
3840 | ||
3841 | /* The high 3 bits of the second EVEX byte are 1's compliment of RXB | |
3842 | bits from REX. */ | |
3843 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m; | |
3844 | ||
3845 | /* The fifth bit of the second EVEX byte is 1's compliment of the | |
3846 | REX_R bit in VREX. */ | |
3847 | if (!(i.vrex & REX_R)) | |
3848 | i.vex.bytes[1] |= 0x10; | |
3849 | else | |
3850 | vrex_used |= REX_R; | |
3851 | ||
3852 | if ((i.reg_operands + i.imm_operands) == i.operands) | |
3853 | { | |
3854 | /* When all operands are registers, the REX_X bit in REX is not | |
3855 | used. We reuse it to encode the upper 16 registers, which is | |
3856 | indicated by the REX_B bit in VREX. The REX_X bit is encoded | |
3857 | as 1's compliment. */ | |
3858 | if ((i.vrex & REX_B)) | |
3859 | { | |
3860 | vrex_used |= REX_B; | |
3861 | i.vex.bytes[1] &= ~0x40; | |
3862 | } | |
3863 | } | |
3864 | ||
3865 | /* EVEX instructions shouldn't need the REX prefix. */ | |
3866 | i.vrex &= ~vrex_used; | |
3867 | gas_assert (i.vrex == 0); | |
3868 | ||
6865c043 L |
3869 | /* Check the REX.W bit and VEXW. */ |
3870 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3871 | w = (evexwig == evexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3872 | else if (i.tm.opcode_modifier.vexw) | |
3873 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3874 | else | |
931d03b7 | 3875 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : evexwig == evexw1) ? 1 : 0; |
43234a1e L |
3876 | |
3877 | /* Encode the U bit. */ | |
3878 | implied_prefix |= 0x4; | |
3879 | ||
3880 | /* The third byte of the EVEX prefix. */ | |
3881 | i.vex.bytes[2] = (w << 7 | register_specifier << 3 | implied_prefix); | |
3882 | ||
3883 | /* The fourth byte of the EVEX prefix. */ | |
3884 | /* The zeroing-masking bit. */ | |
3885 | if (i.mask && i.mask->zeroing) | |
3886 | i.vex.bytes[3] |= 0x80; | |
3887 | ||
3888 | /* Don't always set the broadcast bit if there is no RC. */ | |
3889 | if (!i.rounding) | |
3890 | { | |
3891 | /* Encode the vector length. */ | |
3892 | unsigned int vec_length; | |
3893 | ||
e771e7c9 JB |
3894 | if (!i.tm.opcode_modifier.evex |
3895 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
3896 | { | |
56522fc5 | 3897 | unsigned int op; |
e771e7c9 | 3898 | |
c7213af9 L |
3899 | /* Determine vector length from the last multi-length vector |
3900 | operand. */ | |
e771e7c9 | 3901 | vec_length = 0; |
56522fc5 | 3902 | for (op = i.operands; op--;) |
e771e7c9 JB |
3903 | if (i.tm.operand_types[op].bitfield.xmmword |
3904 | + i.tm.operand_types[op].bitfield.ymmword | |
3905 | + i.tm.operand_types[op].bitfield.zmmword > 1) | |
3906 | { | |
3907 | if (i.types[op].bitfield.zmmword) | |
c7213af9 L |
3908 | { |
3909 | i.tm.opcode_modifier.evex = EVEX512; | |
3910 | break; | |
3911 | } | |
e771e7c9 | 3912 | else if (i.types[op].bitfield.ymmword) |
c7213af9 L |
3913 | { |
3914 | i.tm.opcode_modifier.evex = EVEX256; | |
3915 | break; | |
3916 | } | |
e771e7c9 | 3917 | else if (i.types[op].bitfield.xmmword) |
c7213af9 L |
3918 | { |
3919 | i.tm.opcode_modifier.evex = EVEX128; | |
3920 | break; | |
3921 | } | |
625cbd7a JB |
3922 | else if (i.broadcast && (int) op == i.broadcast->operand) |
3923 | { | |
4a1b91ea | 3924 | switch (i.broadcast->bytes) |
625cbd7a JB |
3925 | { |
3926 | case 64: | |
3927 | i.tm.opcode_modifier.evex = EVEX512; | |
3928 | break; | |
3929 | case 32: | |
3930 | i.tm.opcode_modifier.evex = EVEX256; | |
3931 | break; | |
3932 | case 16: | |
3933 | i.tm.opcode_modifier.evex = EVEX128; | |
3934 | break; | |
3935 | default: | |
c7213af9 | 3936 | abort (); |
625cbd7a | 3937 | } |
c7213af9 | 3938 | break; |
625cbd7a | 3939 | } |
e771e7c9 | 3940 | } |
c7213af9 | 3941 | |
56522fc5 | 3942 | if (op >= MAX_OPERANDS) |
c7213af9 | 3943 | abort (); |
e771e7c9 JB |
3944 | } |
3945 | ||
43234a1e L |
3946 | switch (i.tm.opcode_modifier.evex) |
3947 | { | |
3948 | case EVEXLIG: /* LL' is ignored */ | |
3949 | vec_length = evexlig << 5; | |
3950 | break; | |
3951 | case EVEX128: | |
3952 | vec_length = 0 << 5; | |
3953 | break; | |
3954 | case EVEX256: | |
3955 | vec_length = 1 << 5; | |
3956 | break; | |
3957 | case EVEX512: | |
3958 | vec_length = 2 << 5; | |
3959 | break; | |
3960 | default: | |
3961 | abort (); | |
3962 | break; | |
3963 | } | |
3964 | i.vex.bytes[3] |= vec_length; | |
3965 | /* Encode the broadcast bit. */ | |
3966 | if (i.broadcast) | |
3967 | i.vex.bytes[3] |= 0x10; | |
3968 | } | |
3969 | else | |
3970 | { | |
3971 | if (i.rounding->type != saeonly) | |
3972 | i.vex.bytes[3] |= 0x10 | (i.rounding->type << 5); | |
3973 | else | |
d3d3c6db | 3974 | i.vex.bytes[3] |= 0x10 | (evexrcig << 5); |
43234a1e L |
3975 | } |
3976 | ||
3977 | if (i.mask && i.mask->mask) | |
3978 | i.vex.bytes[3] |= i.mask->mask->reg_num; | |
3979 | } | |
3980 | ||
65da13b5 L |
3981 | static void |
3982 | process_immext (void) | |
3983 | { | |
3984 | expressionS *exp; | |
3985 | ||
c0f3af97 | 3986 | /* These AMD 3DNow! and SSE2 instructions have an opcode suffix |
65da13b5 L |
3987 | which is coded in the same place as an 8-bit immediate field |
3988 | would be. Here we fake an 8-bit immediate operand from the | |
3989 | opcode suffix stored in tm.extension_opcode. | |
3990 | ||
c1e679ec | 3991 | AVX instructions also use this encoding, for some of |
c0f3af97 | 3992 | 3 argument instructions. */ |
65da13b5 | 3993 | |
43234a1e | 3994 | gas_assert (i.imm_operands <= 1 |
7ab9ffdd | 3995 | && (i.operands <= 2 |
7a8655d2 | 3996 | || (is_any_vex_encoding (&i.tm) |
7ab9ffdd | 3997 | && i.operands <= 4))); |
65da13b5 L |
3998 | |
3999 | exp = &im_expressions[i.imm_operands++]; | |
4000 | i.op[i.operands].imms = exp; | |
4001 | i.types[i.operands] = imm8; | |
4002 | i.operands++; | |
4003 | exp->X_op = O_constant; | |
4004 | exp->X_add_number = i.tm.extension_opcode; | |
4005 | i.tm.extension_opcode = None; | |
4006 | } | |
4007 | ||
42164a71 L |
4008 | |
4009 | static int | |
4010 | check_hle (void) | |
4011 | { | |
4012 | switch (i.tm.opcode_modifier.hleprefixok) | |
4013 | { | |
4014 | default: | |
4015 | abort (); | |
82c2def5 | 4016 | case HLEPrefixNone: |
165de32a L |
4017 | as_bad (_("invalid instruction `%s' after `%s'"), |
4018 | i.tm.name, i.hle_prefix); | |
42164a71 | 4019 | return 0; |
82c2def5 | 4020 | case HLEPrefixLock: |
42164a71 L |
4021 | if (i.prefix[LOCK_PREFIX]) |
4022 | return 1; | |
165de32a | 4023 | as_bad (_("missing `lock' with `%s'"), i.hle_prefix); |
42164a71 | 4024 | return 0; |
82c2def5 | 4025 | case HLEPrefixAny: |
42164a71 | 4026 | return 1; |
82c2def5 | 4027 | case HLEPrefixRelease: |
42164a71 L |
4028 | if (i.prefix[HLE_PREFIX] != XRELEASE_PREFIX_OPCODE) |
4029 | { | |
4030 | as_bad (_("instruction `%s' after `xacquire' not allowed"), | |
4031 | i.tm.name); | |
4032 | return 0; | |
4033 | } | |
8dc0818e | 4034 | if (i.mem_operands == 0 || !(i.flags[i.operands - 1] & Operand_Mem)) |
42164a71 L |
4035 | { |
4036 | as_bad (_("memory destination needed for instruction `%s'" | |
4037 | " after `xrelease'"), i.tm.name); | |
4038 | return 0; | |
4039 | } | |
4040 | return 1; | |
4041 | } | |
4042 | } | |
4043 | ||
b6f8c7c4 L |
4044 | /* Try the shortest encoding by shortening operand size. */ |
4045 | ||
4046 | static void | |
4047 | optimize_encoding (void) | |
4048 | { | |
a0a1771e | 4049 | unsigned int j; |
b6f8c7c4 L |
4050 | |
4051 | if (optimize_for_space | |
72aea328 | 4052 | && !is_any_vex_encoding (&i.tm) |
b6f8c7c4 L |
4053 | && i.reg_operands == 1 |
4054 | && i.imm_operands == 1 | |
4055 | && !i.types[1].bitfield.byte | |
4056 | && i.op[0].imms->X_op == O_constant | |
4057 | && fits_in_imm7 (i.op[0].imms->X_add_number) | |
72aea328 | 4058 | && (i.tm.base_opcode == 0xa8 |
b6f8c7c4 L |
4059 | || (i.tm.base_opcode == 0xf6 |
4060 | && i.tm.extension_opcode == 0x0))) | |
4061 | { | |
4062 | /* Optimize: -Os: | |
4063 | test $imm7, %r64/%r32/%r16 -> test $imm7, %r8 | |
4064 | */ | |
4065 | unsigned int base_regnum = i.op[1].regs->reg_num; | |
4066 | if (flag_code == CODE_64BIT || base_regnum < 4) | |
4067 | { | |
4068 | i.types[1].bitfield.byte = 1; | |
4069 | /* Ignore the suffix. */ | |
4070 | i.suffix = 0; | |
7697afb6 JB |
4071 | /* Convert to byte registers. */ |
4072 | if (i.types[1].bitfield.word) | |
4073 | j = 16; | |
4074 | else if (i.types[1].bitfield.dword) | |
4075 | j = 32; | |
4076 | else | |
4077 | j = 48; | |
4078 | if (!(i.op[1].regs->reg_flags & RegRex) && base_regnum < 4) | |
4079 | j += 8; | |
4080 | i.op[1].regs -= j; | |
b6f8c7c4 L |
4081 | } |
4082 | } | |
4083 | else if (flag_code == CODE_64BIT | |
72aea328 | 4084 | && !is_any_vex_encoding (&i.tm) |
d3d50934 L |
4085 | && ((i.types[1].bitfield.qword |
4086 | && i.reg_operands == 1 | |
b6f8c7c4 L |
4087 | && i.imm_operands == 1 |
4088 | && i.op[0].imms->X_op == O_constant | |
507916b8 | 4089 | && ((i.tm.base_opcode == 0xb8 |
b6f8c7c4 L |
4090 | && i.tm.extension_opcode == None |
4091 | && fits_in_unsigned_long (i.op[0].imms->X_add_number)) | |
4092 | || (fits_in_imm31 (i.op[0].imms->X_add_number) | |
72aea328 JB |
4093 | && ((i.tm.base_opcode == 0x24 |
4094 | || i.tm.base_opcode == 0xa8) | |
b6f8c7c4 L |
4095 | || (i.tm.base_opcode == 0x80 |
4096 | && i.tm.extension_opcode == 0x4) | |
4097 | || ((i.tm.base_opcode == 0xf6 | |
507916b8 | 4098 | || (i.tm.base_opcode | 1) == 0xc7) |
b8364fa7 JB |
4099 | && i.tm.extension_opcode == 0x0))) |
4100 | || (fits_in_imm7 (i.op[0].imms->X_add_number) | |
4101 | && i.tm.base_opcode == 0x83 | |
4102 | && i.tm.extension_opcode == 0x4))) | |
d3d50934 L |
4103 | || (i.types[0].bitfield.qword |
4104 | && ((i.reg_operands == 2 | |
4105 | && i.op[0].regs == i.op[1].regs | |
72aea328 JB |
4106 | && (i.tm.base_opcode == 0x30 |
4107 | || i.tm.base_opcode == 0x28)) | |
d3d50934 L |
4108 | || (i.reg_operands == 1 |
4109 | && i.operands == 1 | |
72aea328 | 4110 | && i.tm.base_opcode == 0x30))))) |
b6f8c7c4 L |
4111 | { |
4112 | /* Optimize: -O: | |
4113 | andq $imm31, %r64 -> andl $imm31, %r32 | |
b8364fa7 | 4114 | andq $imm7, %r64 -> andl $imm7, %r32 |
b6f8c7c4 L |
4115 | testq $imm31, %r64 -> testl $imm31, %r32 |
4116 | xorq %r64, %r64 -> xorl %r32, %r32 | |
4117 | subq %r64, %r64 -> subl %r32, %r32 | |
4118 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4119 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4120 | */ | |
4121 | i.tm.opcode_modifier.norex64 = 1; | |
507916b8 | 4122 | if (i.tm.base_opcode == 0xb8 || (i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4123 | { |
4124 | /* Handle | |
4125 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4126 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4127 | */ | |
4128 | i.tm.operand_types[0].bitfield.imm32 = 1; | |
4129 | i.tm.operand_types[0].bitfield.imm32s = 0; | |
4130 | i.tm.operand_types[0].bitfield.imm64 = 0; | |
4131 | i.types[0].bitfield.imm32 = 1; | |
4132 | i.types[0].bitfield.imm32s = 0; | |
4133 | i.types[0].bitfield.imm64 = 0; | |
4134 | i.types[1].bitfield.dword = 1; | |
4135 | i.types[1].bitfield.qword = 0; | |
507916b8 | 4136 | if ((i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4137 | { |
4138 | /* Handle | |
4139 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4140 | */ | |
507916b8 | 4141 | i.tm.base_opcode = 0xb8; |
b6f8c7c4 | 4142 | i.tm.extension_opcode = None; |
507916b8 | 4143 | i.tm.opcode_modifier.w = 0; |
b6f8c7c4 L |
4144 | i.tm.opcode_modifier.modrm = 0; |
4145 | } | |
4146 | } | |
4147 | } | |
5641ec01 JB |
4148 | else if (optimize > 1 |
4149 | && !optimize_for_space | |
72aea328 | 4150 | && !is_any_vex_encoding (&i.tm) |
5641ec01 JB |
4151 | && i.reg_operands == 2 |
4152 | && i.op[0].regs == i.op[1].regs | |
4153 | && ((i.tm.base_opcode & ~(Opcode_D | 1)) == 0x8 | |
4154 | || (i.tm.base_opcode & ~(Opcode_D | 1)) == 0x20) | |
4155 | && (flag_code != CODE_64BIT || !i.types[0].bitfield.dword)) | |
4156 | { | |
4157 | /* Optimize: -O2: | |
4158 | andb %rN, %rN -> testb %rN, %rN | |
4159 | andw %rN, %rN -> testw %rN, %rN | |
4160 | andq %rN, %rN -> testq %rN, %rN | |
4161 | orb %rN, %rN -> testb %rN, %rN | |
4162 | orw %rN, %rN -> testw %rN, %rN | |
4163 | orq %rN, %rN -> testq %rN, %rN | |
4164 | ||
4165 | and outside of 64-bit mode | |
4166 | ||
4167 | andl %rN, %rN -> testl %rN, %rN | |
4168 | orl %rN, %rN -> testl %rN, %rN | |
4169 | */ | |
4170 | i.tm.base_opcode = 0x84 | (i.tm.base_opcode & 1); | |
4171 | } | |
99112332 | 4172 | else if (i.reg_operands == 3 |
b6f8c7c4 L |
4173 | && i.op[0].regs == i.op[1].regs |
4174 | && !i.types[2].bitfield.xmmword | |
4175 | && (i.tm.opcode_modifier.vex | |
7a69eac3 | 4176 | || ((!i.mask || i.mask->zeroing) |
b6f8c7c4 | 4177 | && !i.rounding |
e771e7c9 | 4178 | && is_evex_encoding (&i.tm) |
80c34c38 | 4179 | && (i.vec_encoding != vex_encoding_evex |
dd22218c | 4180 | || cpu_arch_isa_flags.bitfield.cpuavx512vl |
80c34c38 | 4181 | || i.tm.cpu_flags.bitfield.cpuavx512vl |
7091c612 | 4182 | || (i.tm.operand_types[2].bitfield.zmmword |
dd22218c | 4183 | && i.types[2].bitfield.ymmword)))) |
b6f8c7c4 L |
4184 | && ((i.tm.base_opcode == 0x55 |
4185 | || i.tm.base_opcode == 0x6655 | |
4186 | || i.tm.base_opcode == 0x66df | |
4187 | || i.tm.base_opcode == 0x57 | |
4188 | || i.tm.base_opcode == 0x6657 | |
8305403a L |
4189 | || i.tm.base_opcode == 0x66ef |
4190 | || i.tm.base_opcode == 0x66f8 | |
4191 | || i.tm.base_opcode == 0x66f9 | |
4192 | || i.tm.base_opcode == 0x66fa | |
1424ad86 JB |
4193 | || i.tm.base_opcode == 0x66fb |
4194 | || i.tm.base_opcode == 0x42 | |
4195 | || i.tm.base_opcode == 0x6642 | |
4196 | || i.tm.base_opcode == 0x47 | |
4197 | || i.tm.base_opcode == 0x6647) | |
b6f8c7c4 L |
4198 | && i.tm.extension_opcode == None)) |
4199 | { | |
99112332 | 4200 | /* Optimize: -O1: |
8305403a L |
4201 | VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd, |
4202 | vpsubq and vpsubw: | |
b6f8c7c4 L |
4203 | EVEX VOP %zmmM, %zmmM, %zmmN |
4204 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4205 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4206 | EVEX VOP %ymmM, %ymmM, %ymmN |
4207 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4208 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4209 | VEX VOP %ymmM, %ymmM, %ymmN |
4210 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4211 | VOP, one of vpandn and vpxor: | |
4212 | VEX VOP %ymmM, %ymmM, %ymmN | |
4213 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4214 | VOP, one of vpandnd and vpandnq: | |
4215 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4216 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4217 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4218 | EVEX VOP %ymmM, %ymmM, %ymmN |
4219 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4220 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4221 | VOP, one of vpxord and vpxorq: |
4222 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4223 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4224 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4225 | EVEX VOP %ymmM, %ymmM, %ymmN |
4226 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4227 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
1424ad86 JB |
4228 | VOP, one of kxord and kxorq: |
4229 | VEX VOP %kM, %kM, %kN | |
4230 | -> VEX kxorw %kM, %kM, %kN | |
4231 | VOP, one of kandnd and kandnq: | |
4232 | VEX VOP %kM, %kM, %kN | |
4233 | -> VEX kandnw %kM, %kM, %kN | |
b6f8c7c4 | 4234 | */ |
e771e7c9 | 4235 | if (is_evex_encoding (&i.tm)) |
b6f8c7c4 | 4236 | { |
7b1d7ca1 | 4237 | if (i.vec_encoding != vex_encoding_evex) |
b6f8c7c4 L |
4238 | { |
4239 | i.tm.opcode_modifier.vex = VEX128; | |
4240 | i.tm.opcode_modifier.vexw = VEXW0; | |
4241 | i.tm.opcode_modifier.evex = 0; | |
4242 | } | |
7b1d7ca1 | 4243 | else if (optimize > 1) |
dd22218c L |
4244 | i.tm.opcode_modifier.evex = EVEX128; |
4245 | else | |
4246 | return; | |
b6f8c7c4 | 4247 | } |
f74a6307 | 4248 | else if (i.tm.operand_types[0].bitfield.class == RegMask) |
1424ad86 JB |
4249 | { |
4250 | i.tm.base_opcode &= 0xff; | |
4251 | i.tm.opcode_modifier.vexw = VEXW0; | |
4252 | } | |
b6f8c7c4 L |
4253 | else |
4254 | i.tm.opcode_modifier.vex = VEX128; | |
4255 | ||
4256 | if (i.tm.opcode_modifier.vex) | |
4257 | for (j = 0; j < 3; j++) | |
4258 | { | |
4259 | i.types[j].bitfield.xmmword = 1; | |
4260 | i.types[j].bitfield.ymmword = 0; | |
4261 | } | |
4262 | } | |
392a5972 | 4263 | else if (i.vec_encoding != vex_encoding_evex |
97ed31ae | 4264 | && !i.types[0].bitfield.zmmword |
392a5972 | 4265 | && !i.types[1].bitfield.zmmword |
97ed31ae | 4266 | && !i.mask |
a0a1771e | 4267 | && !i.broadcast |
97ed31ae | 4268 | && is_evex_encoding (&i.tm) |
392a5972 L |
4269 | && ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x666f |
4270 | || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf36f | |
a0a1771e JB |
4271 | || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f |
4272 | || (i.tm.base_opcode & ~4) == 0x66db | |
4273 | || (i.tm.base_opcode & ~4) == 0x66eb) | |
97ed31ae L |
4274 | && i.tm.extension_opcode == None) |
4275 | { | |
4276 | /* Optimize: -O1: | |
4277 | VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16, | |
4278 | vmovdqu32 and vmovdqu64: | |
4279 | EVEX VOP %xmmM, %xmmN | |
4280 | -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16) | |
4281 | EVEX VOP %ymmM, %ymmN | |
4282 | -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16) | |
4283 | EVEX VOP %xmmM, mem | |
4284 | -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16) | |
4285 | EVEX VOP %ymmM, mem | |
4286 | -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16) | |
4287 | EVEX VOP mem, %xmmN | |
4288 | -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16) | |
4289 | EVEX VOP mem, %ymmN | |
4290 | -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16) | |
a0a1771e JB |
4291 | VOP, one of vpand, vpandn, vpor, vpxor: |
4292 | EVEX VOP{d,q} %xmmL, %xmmM, %xmmN | |
4293 | -> VEX VOP %xmmL, %xmmM, %xmmN (L, M, and N < 16) | |
4294 | EVEX VOP{d,q} %ymmL, %ymmM, %ymmN | |
4295 | -> VEX VOP %ymmL, %ymmM, %ymmN (L, M, and N < 16) | |
4296 | EVEX VOP{d,q} mem, %xmmM, %xmmN | |
4297 | -> VEX VOP mem, %xmmM, %xmmN (M and N < 16) | |
4298 | EVEX VOP{d,q} mem, %ymmM, %ymmN | |
4299 | -> VEX VOP mem, %ymmM, %ymmN (M and N < 16) | |
97ed31ae | 4300 | */ |
a0a1771e | 4301 | for (j = 0; j < i.operands; j++) |
392a5972 L |
4302 | if (operand_type_check (i.types[j], disp) |
4303 | && i.op[j].disps->X_op == O_constant) | |
4304 | { | |
4305 | /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix | |
4306 | has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4 | |
4307 | bytes, we choose EVEX Disp8 over VEX Disp32. */ | |
4308 | int evex_disp8, vex_disp8; | |
4309 | unsigned int memshift = i.memshift; | |
4310 | offsetT n = i.op[j].disps->X_add_number; | |
4311 | ||
4312 | evex_disp8 = fits_in_disp8 (n); | |
4313 | i.memshift = 0; | |
4314 | vex_disp8 = fits_in_disp8 (n); | |
4315 | if (evex_disp8 != vex_disp8) | |
4316 | { | |
4317 | i.memshift = memshift; | |
4318 | return; | |
4319 | } | |
4320 | ||
4321 | i.types[j].bitfield.disp8 = vex_disp8; | |
4322 | break; | |
4323 | } | |
4324 | if ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f) | |
4325 | i.tm.base_opcode ^= 0xf36f ^ 0xf26f; | |
97ed31ae L |
4326 | i.tm.opcode_modifier.vex |
4327 | = i.types[0].bitfield.ymmword ? VEX256 : VEX128; | |
4328 | i.tm.opcode_modifier.vexw = VEXW0; | |
79dec6b7 JB |
4329 | /* VPAND, VPOR, and VPXOR are commutative. */ |
4330 | if (i.reg_operands == 3 && i.tm.base_opcode != 0x66df) | |
4331 | i.tm.opcode_modifier.commutative = 1; | |
97ed31ae L |
4332 | i.tm.opcode_modifier.evex = 0; |
4333 | i.tm.opcode_modifier.masking = 0; | |
a0a1771e | 4334 | i.tm.opcode_modifier.broadcast = 0; |
97ed31ae L |
4335 | i.tm.opcode_modifier.disp8memshift = 0; |
4336 | i.memshift = 0; | |
a0a1771e JB |
4337 | if (j < i.operands) |
4338 | i.types[j].bitfield.disp8 | |
4339 | = fits_in_disp8 (i.op[j].disps->X_add_number); | |
97ed31ae | 4340 | } |
b6f8c7c4 L |
4341 | } |
4342 | ||
ae531041 L |
4343 | /* Return non-zero for load instruction. */ |
4344 | ||
4345 | static int | |
4346 | load_insn_p (void) | |
4347 | { | |
4348 | unsigned int dest; | |
4349 | int any_vex_p = is_any_vex_encoding (&i.tm); | |
4350 | unsigned int base_opcode = i.tm.base_opcode | 1; | |
4351 | ||
4352 | if (!any_vex_p) | |
4353 | { | |
a09f656b | 4354 | /* Anysize insns: lea, invlpg, clflush, prefetchnta, prefetcht0, |
4355 | prefetcht1, prefetcht2, prefetchtw, bndmk, bndcl, bndcu, bndcn, | |
4356 | bndstx, bndldx, prefetchwt1, clflushopt, clwb, cldemote. */ | |
4357 | if (i.tm.opcode_modifier.anysize) | |
ae531041 L |
4358 | return 0; |
4359 | ||
a09f656b | 4360 | /* pop, popf, popa. */ |
4361 | if (strcmp (i.tm.name, "pop") == 0 | |
4362 | || i.tm.base_opcode == 0x9d | |
4363 | || i.tm.base_opcode == 0x61) | |
ae531041 L |
4364 | return 1; |
4365 | ||
4366 | /* movs, cmps, lods, scas. */ | |
4367 | if ((i.tm.base_opcode | 0xb) == 0xaf) | |
4368 | return 1; | |
4369 | ||
a09f656b | 4370 | /* outs, xlatb. */ |
4371 | if (base_opcode == 0x6f | |
4372 | || i.tm.base_opcode == 0xd7) | |
ae531041 | 4373 | return 1; |
a09f656b | 4374 | /* NB: For AMD-specific insns with implicit memory operands, |
4375 | they're intentionally not covered. */ | |
ae531041 L |
4376 | } |
4377 | ||
4378 | /* No memory operand. */ | |
4379 | if (!i.mem_operands) | |
4380 | return 0; | |
4381 | ||
4382 | if (any_vex_p) | |
4383 | { | |
4384 | /* vldmxcsr. */ | |
4385 | if (i.tm.base_opcode == 0xae | |
4386 | && i.tm.opcode_modifier.vex | |
4387 | && i.tm.opcode_modifier.vexopcode == VEX0F | |
4388 | && i.tm.extension_opcode == 2) | |
4389 | return 1; | |
4390 | } | |
4391 | else | |
4392 | { | |
4393 | /* test, not, neg, mul, imul, div, idiv. */ | |
4394 | if ((i.tm.base_opcode == 0xf6 || i.tm.base_opcode == 0xf7) | |
4395 | && i.tm.extension_opcode != 1) | |
4396 | return 1; | |
4397 | ||
4398 | /* inc, dec. */ | |
4399 | if (base_opcode == 0xff && i.tm.extension_opcode <= 1) | |
4400 | return 1; | |
4401 | ||
4402 | /* add, or, adc, sbb, and, sub, xor, cmp. */ | |
4403 | if (i.tm.base_opcode >= 0x80 && i.tm.base_opcode <= 0x83) | |
4404 | return 1; | |
4405 | ||
4406 | /* bt, bts, btr, btc. */ | |
4407 | if (i.tm.base_opcode == 0xfba | |
4408 | && (i.tm.extension_opcode >= 4 && i.tm.extension_opcode <= 7)) | |
4409 | return 1; | |
4410 | ||
4411 | /* rol, ror, rcl, rcr, shl/sal, shr, sar. */ | |
4412 | if ((base_opcode == 0xc1 | |
4413 | || (i.tm.base_opcode >= 0xd0 && i.tm.base_opcode <= 0xd3)) | |
4414 | && i.tm.extension_opcode != 6) | |
4415 | return 1; | |
4416 | ||
4417 | /* cmpxchg8b, cmpxchg16b, xrstors. */ | |
4418 | if (i.tm.base_opcode == 0xfc7 | |
4419 | && (i.tm.extension_opcode == 1 || i.tm.extension_opcode == 3)) | |
4420 | return 1; | |
4421 | ||
4422 | /* fxrstor, ldmxcsr, xrstor. */ | |
4423 | if (i.tm.base_opcode == 0xfae | |
4424 | && (i.tm.extension_opcode == 1 | |
4425 | || i.tm.extension_opcode == 2 | |
4426 | || i.tm.extension_opcode == 5)) | |
4427 | return 1; | |
4428 | ||
4429 | /* lgdt, lidt, lmsw. */ | |
4430 | if (i.tm.base_opcode == 0xf01 | |
4431 | && (i.tm.extension_opcode == 2 | |
4432 | || i.tm.extension_opcode == 3 | |
4433 | || i.tm.extension_opcode == 6)) | |
4434 | return 1; | |
4435 | ||
4436 | /* vmptrld */ | |
4437 | if (i.tm.base_opcode == 0xfc7 | |
4438 | && i.tm.extension_opcode == 6) | |
4439 | return 1; | |
4440 | ||
4441 | /* Check for x87 instructions. */ | |
4442 | if (i.tm.base_opcode >= 0xd8 && i.tm.base_opcode <= 0xdf) | |
4443 | { | |
4444 | /* Skip fst, fstp, fstenv, fstcw. */ | |
4445 | if (i.tm.base_opcode == 0xd9 | |
4446 | && (i.tm.extension_opcode == 2 | |
4447 | || i.tm.extension_opcode == 3 | |
4448 | || i.tm.extension_opcode == 6 | |
4449 | || i.tm.extension_opcode == 7)) | |
4450 | return 0; | |
4451 | ||
4452 | /* Skip fisttp, fist, fistp, fstp. */ | |
4453 | if (i.tm.base_opcode == 0xdb | |
4454 | && (i.tm.extension_opcode == 1 | |
4455 | || i.tm.extension_opcode == 2 | |
4456 | || i.tm.extension_opcode == 3 | |
4457 | || i.tm.extension_opcode == 7)) | |
4458 | return 0; | |
4459 | ||
4460 | /* Skip fisttp, fst, fstp, fsave, fstsw. */ | |
4461 | if (i.tm.base_opcode == 0xdd | |
4462 | && (i.tm.extension_opcode == 1 | |
4463 | || i.tm.extension_opcode == 2 | |
4464 | || i.tm.extension_opcode == 3 | |
4465 | || i.tm.extension_opcode == 6 | |
4466 | || i.tm.extension_opcode == 7)) | |
4467 | return 0; | |
4468 | ||
4469 | /* Skip fisttp, fist, fistp, fbstp, fistp. */ | |
4470 | if (i.tm.base_opcode == 0xdf | |
4471 | && (i.tm.extension_opcode == 1 | |
4472 | || i.tm.extension_opcode == 2 | |
4473 | || i.tm.extension_opcode == 3 | |
4474 | || i.tm.extension_opcode == 6 | |
4475 | || i.tm.extension_opcode == 7)) | |
4476 | return 0; | |
4477 | ||
4478 | return 1; | |
4479 | } | |
4480 | } | |
4481 | ||
4482 | dest = i.operands - 1; | |
4483 | ||
4484 | /* Check fake imm8 operand and 3 source operands. */ | |
4485 | if ((i.tm.opcode_modifier.immext | |
4486 | || i.tm.opcode_modifier.vexsources == VEX3SOURCES) | |
4487 | && i.types[dest].bitfield.imm8) | |
4488 | dest--; | |
4489 | ||
4490 | /* add, or, adc, sbb, and, sub, xor, cmp, test, xchg, xadd */ | |
4491 | if (!any_vex_p | |
4492 | && (base_opcode == 0x1 | |
4493 | || base_opcode == 0x9 | |
4494 | || base_opcode == 0x11 | |
4495 | || base_opcode == 0x19 | |
4496 | || base_opcode == 0x21 | |
4497 | || base_opcode == 0x29 | |
4498 | || base_opcode == 0x31 | |
4499 | || base_opcode == 0x39 | |
4500 | || (i.tm.base_opcode >= 0x84 && i.tm.base_opcode <= 0x87) | |
4501 | || base_opcode == 0xfc1)) | |
4502 | return 1; | |
4503 | ||
4504 | /* Check for load instruction. */ | |
4505 | return (i.types[dest].bitfield.class != ClassNone | |
4506 | || i.types[dest].bitfield.instance == Accum); | |
4507 | } | |
4508 | ||
4509 | /* Output lfence, 0xfaee8, after instruction. */ | |
4510 | ||
4511 | static void | |
4512 | insert_lfence_after (void) | |
4513 | { | |
4514 | if (lfence_after_load && load_insn_p ()) | |
4515 | { | |
a09f656b | 4516 | /* There are also two REP string instructions that require |
4517 | special treatment. Specifically, the compare string (CMPS) | |
4518 | and scan string (SCAS) instructions set EFLAGS in a manner | |
4519 | that depends on the data being compared/scanned. When used | |
4520 | with a REP prefix, the number of iterations may therefore | |
4521 | vary depending on this data. If the data is a program secret | |
4522 | chosen by the adversary using an LVI method, | |
4523 | then this data-dependent behavior may leak some aspect | |
4524 | of the secret. */ | |
4525 | if (((i.tm.base_opcode | 0x1) == 0xa7 | |
4526 | || (i.tm.base_opcode | 0x1) == 0xaf) | |
4527 | && i.prefix[REP_PREFIX]) | |
4528 | { | |
4529 | as_warn (_("`%s` changes flags which would affect control flow behavior"), | |
4530 | i.tm.name); | |
4531 | } | |
ae531041 L |
4532 | char *p = frag_more (3); |
4533 | *p++ = 0xf; | |
4534 | *p++ = 0xae; | |
4535 | *p = 0xe8; | |
4536 | } | |
4537 | } | |
4538 | ||
4539 | /* Output lfence, 0xfaee8, before instruction. */ | |
4540 | ||
4541 | static void | |
4542 | insert_lfence_before (void) | |
4543 | { | |
4544 | char *p; | |
4545 | ||
4546 | if (is_any_vex_encoding (&i.tm)) | |
4547 | return; | |
4548 | ||
4549 | if (i.tm.base_opcode == 0xff | |
4550 | && (i.tm.extension_opcode == 2 || i.tm.extension_opcode == 4)) | |
4551 | { | |
4552 | /* Insert lfence before indirect branch if needed. */ | |
4553 | ||
4554 | if (lfence_before_indirect_branch == lfence_branch_none) | |
4555 | return; | |
4556 | ||
4557 | if (i.operands != 1) | |
4558 | abort (); | |
4559 | ||
4560 | if (i.reg_operands == 1) | |
4561 | { | |
4562 | /* Indirect branch via register. Don't insert lfence with | |
4563 | -mlfence-after-load=yes. */ | |
4564 | if (lfence_after_load | |
4565 | || lfence_before_indirect_branch == lfence_branch_memory) | |
4566 | return; | |
4567 | } | |
4568 | else if (i.mem_operands == 1 | |
4569 | && lfence_before_indirect_branch != lfence_branch_register) | |
4570 | { | |
4571 | as_warn (_("indirect `%s` with memory operand should be avoided"), | |
4572 | i.tm.name); | |
4573 | return; | |
4574 | } | |
4575 | else | |
4576 | return; | |
4577 | ||
4578 | if (last_insn.kind != last_insn_other | |
4579 | && last_insn.seg == now_seg) | |
4580 | { | |
4581 | as_warn_where (last_insn.file, last_insn.line, | |
4582 | _("`%s` skips -mlfence-before-indirect-branch on `%s`"), | |
4583 | last_insn.name, i.tm.name); | |
4584 | return; | |
4585 | } | |
4586 | ||
4587 | p = frag_more (3); | |
4588 | *p++ = 0xf; | |
4589 | *p++ = 0xae; | |
4590 | *p = 0xe8; | |
4591 | return; | |
4592 | } | |
4593 | ||
a09f656b | 4594 | /* Output or/not/shl and lfence before ret/lret/iret. */ |
ae531041 L |
4595 | if (lfence_before_ret != lfence_before_ret_none |
4596 | && (i.tm.base_opcode == 0xc2 | |
4597 | || i.tm.base_opcode == 0xc3 | |
4598 | || i.tm.base_opcode == 0xca | |
a09f656b | 4599 | || i.tm.base_opcode == 0xcb |
4600 | || i.tm.base_opcode == 0xcf)) | |
ae531041 L |
4601 | { |
4602 | if (last_insn.kind != last_insn_other | |
4603 | && last_insn.seg == now_seg) | |
4604 | { | |
4605 | as_warn_where (last_insn.file, last_insn.line, | |
4606 | _("`%s` skips -mlfence-before-ret on `%s`"), | |
4607 | last_insn.name, i.tm.name); | |
4608 | return; | |
4609 | } | |
a09f656b | 4610 | |
4611 | /* lret or iret. */ | |
4612 | bfd_boolean lret = (i.tm.base_opcode | 0x5) == 0xcf; | |
4613 | bfd_boolean has_rexw = i.prefix[REX_PREFIX] & REX_W; | |
4614 | char prefix = 0x0; | |
4615 | /* Default operand size for far return is 32 bits, | |
4616 | 64 bits for near return. */ | |
4617 | /* Near ret ingore operand size override under CPU64. */ | |
4618 | if ((!lret && flag_code == CODE_64BIT) || has_rexw) | |
4619 | prefix = 0x48; | |
4620 | else if (i.prefix[DATA_PREFIX]) | |
4621 | prefix = 0x66; | |
4622 | ||
4623 | if (lfence_before_ret == lfence_before_ret_not) | |
4624 | { | |
4625 | /* not: 0xf71424, may add prefix | |
4626 | for operand size override or 64-bit code. */ | |
4627 | p = frag_more ((prefix ? 2 : 0) + 6 + 3); | |
4628 | if (prefix) | |
4629 | *p++ = prefix; | |
ae531041 L |
4630 | *p++ = 0xf7; |
4631 | *p++ = 0x14; | |
4632 | *p++ = 0x24; | |
a09f656b | 4633 | if (prefix) |
4634 | *p++ = prefix; | |
ae531041 L |
4635 | *p++ = 0xf7; |
4636 | *p++ = 0x14; | |
4637 | *p++ = 0x24; | |
4638 | } | |
a09f656b | 4639 | else |
4640 | { | |
4641 | p = frag_more ((prefix ? 1 : 0) + 4 + 3); | |
4642 | if (prefix) | |
4643 | *p++ = prefix; | |
4644 | if (lfence_before_ret == lfence_before_ret_or) | |
4645 | { | |
4646 | /* or: 0x830c2400, may add prefix | |
4647 | for operand size override or 64-bit code. */ | |
4648 | *p++ = 0x83; | |
4649 | *p++ = 0x0c; | |
4650 | } | |
4651 | else | |
4652 | { | |
4653 | /* shl: 0xc1242400, may add prefix | |
4654 | for operand size override or 64-bit code. */ | |
4655 | *p++ = 0xc1; | |
4656 | *p++ = 0x24; | |
4657 | } | |
4658 | ||
4659 | *p++ = 0x24; | |
4660 | *p++ = 0x0; | |
4661 | } | |
4662 | ||
ae531041 L |
4663 | *p++ = 0xf; |
4664 | *p++ = 0xae; | |
4665 | *p = 0xe8; | |
4666 | } | |
4667 | } | |
4668 | ||
252b5132 RH |
4669 | /* This is the guts of the machine-dependent assembler. LINE points to a |
4670 | machine dependent instruction. This function is supposed to emit | |
4671 | the frags/bytes it assembles to. */ | |
4672 | ||
4673 | void | |
65da13b5 | 4674 | md_assemble (char *line) |
252b5132 | 4675 | { |
40fb9820 | 4676 | unsigned int j; |
83b16ac6 | 4677 | char mnemonic[MAX_MNEM_SIZE], mnem_suffix; |
d3ce72d0 | 4678 | const insn_template *t; |
252b5132 | 4679 | |
47926f60 | 4680 | /* Initialize globals. */ |
252b5132 RH |
4681 | memset (&i, '\0', sizeof (i)); |
4682 | for (j = 0; j < MAX_OPERANDS; j++) | |
1ae12ab7 | 4683 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
4684 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
4685 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 4686 | save_stack_p = save_stack; |
252b5132 RH |
4687 | |
4688 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
4689 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 4690 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 4691 | |
29b0f896 AM |
4692 | line = parse_insn (line, mnemonic); |
4693 | if (line == NULL) | |
4694 | return; | |
83b16ac6 | 4695 | mnem_suffix = i.suffix; |
252b5132 | 4696 | |
29b0f896 | 4697 | line = parse_operands (line, mnemonic); |
ee86248c | 4698 | this_operand = -1; |
8325cc63 JB |
4699 | xfree (i.memop1_string); |
4700 | i.memop1_string = NULL; | |
29b0f896 AM |
4701 | if (line == NULL) |
4702 | return; | |
252b5132 | 4703 | |
29b0f896 AM |
4704 | /* Now we've parsed the mnemonic into a set of templates, and have the |
4705 | operands at hand. */ | |
4706 | ||
b630c145 JB |
4707 | /* All Intel opcodes have reversed operands except for "bound", "enter", |
4708 | "monitor*", "mwait*", "tpause", and "umwait". We also don't reverse | |
4709 | intersegment "jmp" and "call" instructions with 2 immediate operands so | |
4710 | that the immediate segment precedes the offset, as it does when in AT&T | |
4711 | mode. */ | |
4d456e3d L |
4712 | if (intel_syntax |
4713 | && i.operands > 1 | |
29b0f896 | 4714 | && (strcmp (mnemonic, "bound") != 0) |
30123838 | 4715 | && (strcmp (mnemonic, "invlpga") != 0) |
eedb0f2c JB |
4716 | && (strncmp (mnemonic, "monitor", 7) != 0) |
4717 | && (strncmp (mnemonic, "mwait", 5) != 0) | |
b630c145 JB |
4718 | && (strcmp (mnemonic, "tpause") != 0) |
4719 | && (strcmp (mnemonic, "umwait") != 0) | |
40fb9820 L |
4720 | && !(operand_type_check (i.types[0], imm) |
4721 | && operand_type_check (i.types[1], imm))) | |
29b0f896 AM |
4722 | swap_operands (); |
4723 | ||
ec56d5c0 JB |
4724 | /* The order of the immediates should be reversed |
4725 | for 2 immediates extrq and insertq instructions */ | |
4726 | if (i.imm_operands == 2 | |
4727 | && (strcmp (mnemonic, "extrq") == 0 | |
4728 | || strcmp (mnemonic, "insertq") == 0)) | |
4729 | swap_2_operands (0, 1); | |
4730 | ||
29b0f896 AM |
4731 | if (i.imm_operands) |
4732 | optimize_imm (); | |
4733 | ||
b300c311 L |
4734 | /* Don't optimize displacement for movabs since it only takes 64bit |
4735 | displacement. */ | |
4736 | if (i.disp_operands | |
a501d77e | 4737 | && i.disp_encoding != disp_encoding_32bit |
862be3fb L |
4738 | && (flag_code != CODE_64BIT |
4739 | || strcmp (mnemonic, "movabs") != 0)) | |
4740 | optimize_disp (); | |
29b0f896 AM |
4741 | |
4742 | /* Next, we find a template that matches the given insn, | |
4743 | making sure the overlap of the given operands types is consistent | |
4744 | with the template operand types. */ | |
252b5132 | 4745 | |
83b16ac6 | 4746 | if (!(t = match_template (mnem_suffix))) |
29b0f896 | 4747 | return; |
252b5132 | 4748 | |
7bab8ab5 | 4749 | if (sse_check != check_none |
81f8a913 | 4750 | && !i.tm.opcode_modifier.noavx |
6e3e5c9e | 4751 | && !i.tm.cpu_flags.bitfield.cpuavx |
569d50f1 | 4752 | && !i.tm.cpu_flags.bitfield.cpuavx512f |
daf50ae7 L |
4753 | && (i.tm.cpu_flags.bitfield.cpusse |
4754 | || i.tm.cpu_flags.bitfield.cpusse2 | |
4755 | || i.tm.cpu_flags.bitfield.cpusse3 | |
4756 | || i.tm.cpu_flags.bitfield.cpussse3 | |
4757 | || i.tm.cpu_flags.bitfield.cpusse4_1 | |
6e3e5c9e | 4758 | || i.tm.cpu_flags.bitfield.cpusse4_2 |
569d50f1 | 4759 | || i.tm.cpu_flags.bitfield.cpusse4a |
6e3e5c9e JB |
4760 | || i.tm.cpu_flags.bitfield.cpupclmul |
4761 | || i.tm.cpu_flags.bitfield.cpuaes | |
569d50f1 | 4762 | || i.tm.cpu_flags.bitfield.cpusha |
6e3e5c9e | 4763 | || i.tm.cpu_flags.bitfield.cpugfni)) |
daf50ae7 | 4764 | { |
7bab8ab5 | 4765 | (sse_check == check_warning |
daf50ae7 L |
4766 | ? as_warn |
4767 | : as_bad) (_("SSE instruction `%s' is used"), i.tm.name); | |
4768 | } | |
4769 | ||
40fb9820 | 4770 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
4771 | if (!add_prefix (FWAIT_OPCODE)) |
4772 | return; | |
252b5132 | 4773 | |
d5de92cf L |
4774 | /* Check if REP prefix is OK. */ |
4775 | if (i.rep_prefix && !i.tm.opcode_modifier.repprefixok) | |
4776 | { | |
4777 | as_bad (_("invalid instruction `%s' after `%s'"), | |
4778 | i.tm.name, i.rep_prefix); | |
4779 | return; | |
4780 | } | |
4781 | ||
c1ba0266 L |
4782 | /* Check for lock without a lockable instruction. Destination operand |
4783 | must be memory unless it is xchg (0x86). */ | |
c32fa91d L |
4784 | if (i.prefix[LOCK_PREFIX] |
4785 | && (!i.tm.opcode_modifier.islockable | |
c1ba0266 L |
4786 | || i.mem_operands == 0 |
4787 | || (i.tm.base_opcode != 0x86 | |
8dc0818e | 4788 | && !(i.flags[i.operands - 1] & Operand_Mem)))) |
c32fa91d L |
4789 | { |
4790 | as_bad (_("expecting lockable instruction after `lock'")); | |
4791 | return; | |
4792 | } | |
4793 | ||
7a8655d2 JB |
4794 | /* Check for data size prefix on VEX/XOP/EVEX encoded insns. */ |
4795 | if (i.prefix[DATA_PREFIX] && is_any_vex_encoding (&i.tm)) | |
4796 | { | |
4797 | as_bad (_("data size prefix invalid with `%s'"), i.tm.name); | |
4798 | return; | |
4799 | } | |
4800 | ||
42164a71 | 4801 | /* Check if HLE prefix is OK. */ |
165de32a | 4802 | if (i.hle_prefix && !check_hle ()) |
42164a71 L |
4803 | return; |
4804 | ||
7e8b059b L |
4805 | /* Check BND prefix. */ |
4806 | if (i.bnd_prefix && !i.tm.opcode_modifier.bndprefixok) | |
4807 | as_bad (_("expecting valid branch instruction after `bnd'")); | |
4808 | ||
04ef582a | 4809 | /* Check NOTRACK prefix. */ |
9fef80d6 L |
4810 | if (i.notrack_prefix && !i.tm.opcode_modifier.notrackprefixok) |
4811 | as_bad (_("expecting indirect branch instruction after `notrack'")); | |
04ef582a | 4812 | |
327e8c42 JB |
4813 | if (i.tm.cpu_flags.bitfield.cpumpx) |
4814 | { | |
4815 | if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX]) | |
4816 | as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions.")); | |
4817 | else if (flag_code != CODE_16BIT | |
4818 | ? i.prefix[ADDR_PREFIX] | |
4819 | : i.mem_operands && !i.prefix[ADDR_PREFIX]) | |
4820 | as_bad (_("16-bit address isn't allowed in MPX instructions")); | |
4821 | } | |
7e8b059b L |
4822 | |
4823 | /* Insert BND prefix. */ | |
76d3a78a JB |
4824 | if (add_bnd_prefix && i.tm.opcode_modifier.bndprefixok) |
4825 | { | |
4826 | if (!i.prefix[BND_PREFIX]) | |
4827 | add_prefix (BND_PREFIX_OPCODE); | |
4828 | else if (i.prefix[BND_PREFIX] != BND_PREFIX_OPCODE) | |
4829 | { | |
4830 | as_warn (_("replacing `rep'/`repe' prefix by `bnd'")); | |
4831 | i.prefix[BND_PREFIX] = BND_PREFIX_OPCODE; | |
4832 | } | |
4833 | } | |
7e8b059b | 4834 | |
29b0f896 | 4835 | /* Check string instruction segment overrides. */ |
51c8edf6 | 4836 | if (i.tm.opcode_modifier.isstring >= IS_STRING_ES_OP0) |
29b0f896 | 4837 | { |
51c8edf6 | 4838 | gas_assert (i.mem_operands); |
29b0f896 | 4839 | if (!check_string ()) |
5dd0794d | 4840 | return; |
fc0763e6 | 4841 | i.disp_operands = 0; |
29b0f896 | 4842 | } |
5dd0794d | 4843 | |
b6f8c7c4 L |
4844 | if (optimize && !i.no_optimize && i.tm.opcode_modifier.optimize) |
4845 | optimize_encoding (); | |
4846 | ||
29b0f896 AM |
4847 | if (!process_suffix ()) |
4848 | return; | |
e413e4e9 | 4849 | |
bc0844ae L |
4850 | /* Update operand types. */ |
4851 | for (j = 0; j < i.operands; j++) | |
4852 | i.types[j] = operand_type_and (i.types[j], i.tm.operand_types[j]); | |
4853 | ||
29b0f896 AM |
4854 | /* Make still unresolved immediate matches conform to size of immediate |
4855 | given in i.suffix. */ | |
4856 | if (!finalize_imm ()) | |
4857 | return; | |
252b5132 | 4858 | |
40fb9820 | 4859 | if (i.types[0].bitfield.imm1) |
29b0f896 | 4860 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 4861 | |
9afe6eb8 L |
4862 | /* We only need to check those implicit registers for instructions |
4863 | with 3 operands or less. */ | |
4864 | if (i.operands <= 3) | |
4865 | for (j = 0; j < i.operands; j++) | |
75e5731b JB |
4866 | if (i.types[j].bitfield.instance != InstanceNone |
4867 | && !i.types[j].bitfield.xmmword) | |
9afe6eb8 | 4868 | i.reg_operands--; |
40fb9820 | 4869 | |
c0f3af97 L |
4870 | /* ImmExt should be processed after SSE2AVX. */ |
4871 | if (!i.tm.opcode_modifier.sse2avx | |
4872 | && i.tm.opcode_modifier.immext) | |
65da13b5 | 4873 | process_immext (); |
252b5132 | 4874 | |
29b0f896 AM |
4875 | /* For insns with operands there are more diddles to do to the opcode. */ |
4876 | if (i.operands) | |
4877 | { | |
4878 | if (!process_operands ()) | |
4879 | return; | |
4880 | } | |
40fb9820 | 4881 | else if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 AM |
4882 | { |
4883 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
4884 | as_warn (_("translating to `%sp'"), i.tm.name); | |
4885 | } | |
252b5132 | 4886 | |
7a8655d2 | 4887 | if (is_any_vex_encoding (&i.tm)) |
9e5e5283 | 4888 | { |
c1dc7af5 | 4889 | if (!cpu_arch_flags.bitfield.cpui286) |
9e5e5283 | 4890 | { |
c1dc7af5 | 4891 | as_bad (_("instruction `%s' isn't supported outside of protected mode."), |
9e5e5283 L |
4892 | i.tm.name); |
4893 | return; | |
4894 | } | |
c0f3af97 | 4895 | |
9e5e5283 L |
4896 | if (i.tm.opcode_modifier.vex) |
4897 | build_vex_prefix (t); | |
4898 | else | |
4899 | build_evex_prefix (); | |
4900 | } | |
43234a1e | 4901 | |
5dd85c99 SP |
4902 | /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4 |
4903 | instructions may define INT_OPCODE as well, so avoid this corner | |
4904 | case for those instructions that use MODRM. */ | |
4905 | if (i.tm.base_opcode == INT_OPCODE | |
a6461c02 SP |
4906 | && !i.tm.opcode_modifier.modrm |
4907 | && i.op[0].imms->X_add_number == 3) | |
29b0f896 AM |
4908 | { |
4909 | i.tm.base_opcode = INT3_OPCODE; | |
4910 | i.imm_operands = 0; | |
4911 | } | |
252b5132 | 4912 | |
0cfa3eb3 JB |
4913 | if ((i.tm.opcode_modifier.jump == JUMP |
4914 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
4915 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 AM |
4916 | && i.op[0].disps->X_op == O_constant) |
4917 | { | |
4918 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
4919 | the absolute address given by the constant. Since ix86 jumps and | |
4920 | calls are pc relative, we need to generate a reloc. */ | |
4921 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
4922 | i.op[0].disps->X_op = O_symbol; | |
4923 | } | |
252b5132 | 4924 | |
29b0f896 AM |
4925 | /* For 8 bit registers we need an empty rex prefix. Also if the |
4926 | instruction already has a prefix, we need to convert old | |
4927 | registers to new ones. */ | |
773f551c | 4928 | |
bab6aec1 | 4929 | if ((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte |
29b0f896 | 4930 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
bab6aec1 | 4931 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte |
29b0f896 | 4932 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
bab6aec1 JB |
4933 | || (((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte) |
4934 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte)) | |
29b0f896 AM |
4935 | && i.rex != 0)) |
4936 | { | |
4937 | int x; | |
726c5dcd | 4938 | |
29b0f896 AM |
4939 | i.rex |= REX_OPCODE; |
4940 | for (x = 0; x < 2; x++) | |
4941 | { | |
4942 | /* Look for 8 bit operand that uses old registers. */ | |
bab6aec1 | 4943 | if (i.types[x].bitfield.class == Reg && i.types[x].bitfield.byte |
29b0f896 | 4944 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 4945 | { |
3f93af61 | 4946 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
29b0f896 AM |
4947 | /* In case it is "hi" register, give up. */ |
4948 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 4949 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 4950 | "instruction requiring REX prefix."), |
a540244d | 4951 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 4952 | |
29b0f896 AM |
4953 | /* Otherwise it is equivalent to the extended register. |
4954 | Since the encoding doesn't change this is merely | |
4955 | cosmetic cleanup for debug output. */ | |
4956 | ||
4957 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 4958 | } |
29b0f896 AM |
4959 | } |
4960 | } | |
773f551c | 4961 | |
6b6b6807 L |
4962 | if (i.rex == 0 && i.rex_encoding) |
4963 | { | |
4964 | /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand | |
3f93af61 | 4965 | that uses legacy register. If it is "hi" register, don't add |
6b6b6807 L |
4966 | the REX_OPCODE byte. */ |
4967 | int x; | |
4968 | for (x = 0; x < 2; x++) | |
bab6aec1 | 4969 | if (i.types[x].bitfield.class == Reg |
6b6b6807 L |
4970 | && i.types[x].bitfield.byte |
4971 | && (i.op[x].regs->reg_flags & RegRex64) == 0 | |
4972 | && i.op[x].regs->reg_num > 3) | |
4973 | { | |
3f93af61 | 4974 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
6b6b6807 L |
4975 | i.rex_encoding = FALSE; |
4976 | break; | |
4977 | } | |
4978 | ||
4979 | if (i.rex_encoding) | |
4980 | i.rex = REX_OPCODE; | |
4981 | } | |
4982 | ||
7ab9ffdd | 4983 | if (i.rex != 0) |
29b0f896 AM |
4984 | add_prefix (REX_OPCODE | i.rex); |
4985 | ||
ae531041 L |
4986 | insert_lfence_before (); |
4987 | ||
29b0f896 AM |
4988 | /* We are ready to output the insn. */ |
4989 | output_insn (); | |
e379e5f3 | 4990 | |
ae531041 L |
4991 | insert_lfence_after (); |
4992 | ||
e379e5f3 L |
4993 | last_insn.seg = now_seg; |
4994 | ||
4995 | if (i.tm.opcode_modifier.isprefix) | |
4996 | { | |
4997 | last_insn.kind = last_insn_prefix; | |
4998 | last_insn.name = i.tm.name; | |
4999 | last_insn.file = as_where (&last_insn.line); | |
5000 | } | |
5001 | else | |
5002 | last_insn.kind = last_insn_other; | |
29b0f896 AM |
5003 | } |
5004 | ||
5005 | static char * | |
e3bb37b5 | 5006 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
5007 | { |
5008 | char *l = line; | |
5009 | char *token_start = l; | |
5010 | char *mnem_p; | |
5c6af06e | 5011 | int supported; |
d3ce72d0 | 5012 | const insn_template *t; |
b6169b20 | 5013 | char *dot_p = NULL; |
29b0f896 | 5014 | |
29b0f896 AM |
5015 | while (1) |
5016 | { | |
5017 | mnem_p = mnemonic; | |
5018 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
5019 | { | |
b6169b20 L |
5020 | if (*mnem_p == '.') |
5021 | dot_p = mnem_p; | |
29b0f896 AM |
5022 | mnem_p++; |
5023 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 5024 | { |
29b0f896 AM |
5025 | as_bad (_("no such instruction: `%s'"), token_start); |
5026 | return NULL; | |
5027 | } | |
5028 | l++; | |
5029 | } | |
5030 | if (!is_space_char (*l) | |
5031 | && *l != END_OF_INSN | |
e44823cf JB |
5032 | && (intel_syntax |
5033 | || (*l != PREFIX_SEPARATOR | |
5034 | && *l != ','))) | |
29b0f896 AM |
5035 | { |
5036 | as_bad (_("invalid character %s in mnemonic"), | |
5037 | output_invalid (*l)); | |
5038 | return NULL; | |
5039 | } | |
5040 | if (token_start == l) | |
5041 | { | |
e44823cf | 5042 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
5043 | as_bad (_("expecting prefix; got nothing")); |
5044 | else | |
5045 | as_bad (_("expecting mnemonic; got nothing")); | |
5046 | return NULL; | |
5047 | } | |
45288df1 | 5048 | |
29b0f896 | 5049 | /* Look up instruction (or prefix) via hash table. */ |
d3ce72d0 | 5050 | current_templates = (const templates *) hash_find (op_hash, mnemonic); |
47926f60 | 5051 | |
29b0f896 AM |
5052 | if (*l != END_OF_INSN |
5053 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
5054 | && current_templates | |
40fb9820 | 5055 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 5056 | { |
c6fb90c8 | 5057 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
5058 | { |
5059 | as_bad ((flag_code != CODE_64BIT | |
5060 | ? _("`%s' is only supported in 64-bit mode") | |
5061 | : _("`%s' is not supported in 64-bit mode")), | |
5062 | current_templates->start->name); | |
5063 | return NULL; | |
5064 | } | |
29b0f896 AM |
5065 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
5066 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
673fe0f0 JB |
5067 | if ((current_templates->start->opcode_modifier.size == SIZE16 |
5068 | || current_templates->start->opcode_modifier.size == SIZE32) | |
29b0f896 | 5069 | && flag_code != CODE_64BIT |
673fe0f0 | 5070 | && ((current_templates->start->opcode_modifier.size == SIZE32) |
29b0f896 AM |
5071 | ^ (flag_code == CODE_16BIT))) |
5072 | { | |
5073 | as_bad (_("redundant %s prefix"), | |
5074 | current_templates->start->name); | |
5075 | return NULL; | |
45288df1 | 5076 | } |
86fa6981 | 5077 | if (current_templates->start->opcode_length == 0) |
29b0f896 | 5078 | { |
86fa6981 L |
5079 | /* Handle pseudo prefixes. */ |
5080 | switch (current_templates->start->base_opcode) | |
5081 | { | |
5082 | case 0x0: | |
5083 | /* {disp8} */ | |
5084 | i.disp_encoding = disp_encoding_8bit; | |
5085 | break; | |
5086 | case 0x1: | |
5087 | /* {disp32} */ | |
5088 | i.disp_encoding = disp_encoding_32bit; | |
5089 | break; | |
5090 | case 0x2: | |
5091 | /* {load} */ | |
5092 | i.dir_encoding = dir_encoding_load; | |
5093 | break; | |
5094 | case 0x3: | |
5095 | /* {store} */ | |
5096 | i.dir_encoding = dir_encoding_store; | |
5097 | break; | |
5098 | case 0x4: | |
42e04b36 L |
5099 | /* {vex} */ |
5100 | i.vec_encoding = vex_encoding_vex; | |
86fa6981 L |
5101 | break; |
5102 | case 0x5: | |
5103 | /* {vex3} */ | |
5104 | i.vec_encoding = vex_encoding_vex3; | |
5105 | break; | |
5106 | case 0x6: | |
5107 | /* {evex} */ | |
5108 | i.vec_encoding = vex_encoding_evex; | |
5109 | break; | |
6b6b6807 L |
5110 | case 0x7: |
5111 | /* {rex} */ | |
5112 | i.rex_encoding = TRUE; | |
5113 | break; | |
b6f8c7c4 L |
5114 | case 0x8: |
5115 | /* {nooptimize} */ | |
5116 | i.no_optimize = TRUE; | |
5117 | break; | |
86fa6981 L |
5118 | default: |
5119 | abort (); | |
5120 | } | |
5121 | } | |
5122 | else | |
5123 | { | |
5124 | /* Add prefix, checking for repeated prefixes. */ | |
4e9ac44a | 5125 | switch (add_prefix (current_templates->start->base_opcode)) |
86fa6981 | 5126 | { |
4e9ac44a L |
5127 | case PREFIX_EXIST: |
5128 | return NULL; | |
5129 | case PREFIX_DS: | |
d777820b | 5130 | if (current_templates->start->cpu_flags.bitfield.cpuibt) |
4e9ac44a L |
5131 | i.notrack_prefix = current_templates->start->name; |
5132 | break; | |
5133 | case PREFIX_REP: | |
5134 | if (current_templates->start->cpu_flags.bitfield.cpuhle) | |
5135 | i.hle_prefix = current_templates->start->name; | |
5136 | else if (current_templates->start->cpu_flags.bitfield.cpumpx) | |
5137 | i.bnd_prefix = current_templates->start->name; | |
5138 | else | |
5139 | i.rep_prefix = current_templates->start->name; | |
5140 | break; | |
5141 | default: | |
5142 | break; | |
86fa6981 | 5143 | } |
29b0f896 AM |
5144 | } |
5145 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
5146 | token_start = ++l; | |
5147 | } | |
5148 | else | |
5149 | break; | |
5150 | } | |
45288df1 | 5151 | |
30a55f88 | 5152 | if (!current_templates) |
b6169b20 | 5153 | { |
07d5e953 JB |
5154 | /* Deprecated functionality (new code should use pseudo-prefixes instead): |
5155 | Check if we should swap operand or force 32bit displacement in | |
f8a5c266 | 5156 | encoding. */ |
30a55f88 | 5157 | if (mnem_p - 2 == dot_p && dot_p[1] == 's') |
64c49ab3 | 5158 | i.dir_encoding = dir_encoding_swap; |
8d63c93e | 5159 | else if (mnem_p - 3 == dot_p |
a501d77e L |
5160 | && dot_p[1] == 'd' |
5161 | && dot_p[2] == '8') | |
5162 | i.disp_encoding = disp_encoding_8bit; | |
8d63c93e | 5163 | else if (mnem_p - 4 == dot_p |
f8a5c266 L |
5164 | && dot_p[1] == 'd' |
5165 | && dot_p[2] == '3' | |
5166 | && dot_p[3] == '2') | |
a501d77e | 5167 | i.disp_encoding = disp_encoding_32bit; |
30a55f88 L |
5168 | else |
5169 | goto check_suffix; | |
5170 | mnem_p = dot_p; | |
5171 | *dot_p = '\0'; | |
d3ce72d0 | 5172 | current_templates = (const templates *) hash_find (op_hash, mnemonic); |
b6169b20 L |
5173 | } |
5174 | ||
29b0f896 AM |
5175 | if (!current_templates) |
5176 | { | |
dc1e8a47 | 5177 | check_suffix: |
1c529385 | 5178 | if (mnem_p > mnemonic) |
29b0f896 | 5179 | { |
1c529385 LH |
5180 | /* See if we can get a match by trimming off a suffix. */ |
5181 | switch (mnem_p[-1]) | |
29b0f896 | 5182 | { |
1c529385 LH |
5183 | case WORD_MNEM_SUFFIX: |
5184 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) | |
29b0f896 AM |
5185 | i.suffix = SHORT_MNEM_SUFFIX; |
5186 | else | |
1c529385 LH |
5187 | /* Fall through. */ |
5188 | case BYTE_MNEM_SUFFIX: | |
5189 | case QWORD_MNEM_SUFFIX: | |
5190 | i.suffix = mnem_p[-1]; | |
29b0f896 | 5191 | mnem_p[-1] = '\0'; |
d3ce72d0 | 5192 | current_templates = (const templates *) hash_find (op_hash, |
1c529385 LH |
5193 | mnemonic); |
5194 | break; | |
5195 | case SHORT_MNEM_SUFFIX: | |
5196 | case LONG_MNEM_SUFFIX: | |
5197 | if (!intel_syntax) | |
5198 | { | |
5199 | i.suffix = mnem_p[-1]; | |
5200 | mnem_p[-1] = '\0'; | |
5201 | current_templates = (const templates *) hash_find (op_hash, | |
5202 | mnemonic); | |
5203 | } | |
5204 | break; | |
5205 | ||
5206 | /* Intel Syntax. */ | |
5207 | case 'd': | |
5208 | if (intel_syntax) | |
5209 | { | |
5210 | if (intel_float_operand (mnemonic) == 1) | |
5211 | i.suffix = SHORT_MNEM_SUFFIX; | |
5212 | else | |
5213 | i.suffix = LONG_MNEM_SUFFIX; | |
5214 | mnem_p[-1] = '\0'; | |
5215 | current_templates = (const templates *) hash_find (op_hash, | |
5216 | mnemonic); | |
5217 | } | |
5218 | break; | |
29b0f896 | 5219 | } |
29b0f896 | 5220 | } |
1c529385 | 5221 | |
29b0f896 AM |
5222 | if (!current_templates) |
5223 | { | |
5224 | as_bad (_("no such instruction: `%s'"), token_start); | |
5225 | return NULL; | |
5226 | } | |
5227 | } | |
252b5132 | 5228 | |
0cfa3eb3 JB |
5229 | if (current_templates->start->opcode_modifier.jump == JUMP |
5230 | || current_templates->start->opcode_modifier.jump == JUMP_BYTE) | |
29b0f896 AM |
5231 | { |
5232 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
5233 | predict taken and predict not taken respectively. | |
5234 | I'm not sure that branch hints actually do anything on loop | |
5235 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
5236 | may work in the future and it doesn't hurt to accept them | |
5237 | now. */ | |
5238 | if (l[0] == ',' && l[1] == 'p') | |
5239 | { | |
5240 | if (l[2] == 't') | |
5241 | { | |
5242 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
5243 | return NULL; | |
5244 | l += 3; | |
5245 | } | |
5246 | else if (l[2] == 'n') | |
5247 | { | |
5248 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
5249 | return NULL; | |
5250 | l += 3; | |
5251 | } | |
5252 | } | |
5253 | } | |
5254 | /* Any other comma loses. */ | |
5255 | if (*l == ',') | |
5256 | { | |
5257 | as_bad (_("invalid character %s in mnemonic"), | |
5258 | output_invalid (*l)); | |
5259 | return NULL; | |
5260 | } | |
252b5132 | 5261 | |
29b0f896 | 5262 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
5263 | supported = 0; |
5264 | for (t = current_templates->start; t < current_templates->end; ++t) | |
5265 | { | |
c0f3af97 L |
5266 | supported |= cpu_flags_match (t); |
5267 | if (supported == CPU_FLAGS_PERFECT_MATCH) | |
548d0ee6 JB |
5268 | { |
5269 | if (!cpu_arch_flags.bitfield.cpui386 && (flag_code != CODE_16BIT)) | |
5270 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
3629bb00 | 5271 | |
548d0ee6 JB |
5272 | return l; |
5273 | } | |
29b0f896 | 5274 | } |
3629bb00 | 5275 | |
548d0ee6 JB |
5276 | if (!(supported & CPU_FLAGS_64BIT_MATCH)) |
5277 | as_bad (flag_code == CODE_64BIT | |
5278 | ? _("`%s' is not supported in 64-bit mode") | |
5279 | : _("`%s' is only supported in 64-bit mode"), | |
5280 | current_templates->start->name); | |
5281 | else | |
5282 | as_bad (_("`%s' is not supported on `%s%s'"), | |
5283 | current_templates->start->name, | |
5284 | cpu_arch_name ? cpu_arch_name : default_arch, | |
5285 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); | |
252b5132 | 5286 | |
548d0ee6 | 5287 | return NULL; |
29b0f896 | 5288 | } |
252b5132 | 5289 | |
29b0f896 | 5290 | static char * |
e3bb37b5 | 5291 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
5292 | { |
5293 | char *token_start; | |
3138f287 | 5294 | |
29b0f896 AM |
5295 | /* 1 if operand is pending after ','. */ |
5296 | unsigned int expecting_operand = 0; | |
252b5132 | 5297 | |
29b0f896 AM |
5298 | /* Non-zero if operand parens not balanced. */ |
5299 | unsigned int paren_not_balanced; | |
5300 | ||
5301 | while (*l != END_OF_INSN) | |
5302 | { | |
5303 | /* Skip optional white space before operand. */ | |
5304 | if (is_space_char (*l)) | |
5305 | ++l; | |
d02603dc | 5306 | if (!is_operand_char (*l) && *l != END_OF_INSN && *l != '"') |
29b0f896 AM |
5307 | { |
5308 | as_bad (_("invalid character %s before operand %d"), | |
5309 | output_invalid (*l), | |
5310 | i.operands + 1); | |
5311 | return NULL; | |
5312 | } | |
d02603dc | 5313 | token_start = l; /* After white space. */ |
29b0f896 AM |
5314 | paren_not_balanced = 0; |
5315 | while (paren_not_balanced || *l != ',') | |
5316 | { | |
5317 | if (*l == END_OF_INSN) | |
5318 | { | |
5319 | if (paren_not_balanced) | |
5320 | { | |
5321 | if (!intel_syntax) | |
5322 | as_bad (_("unbalanced parenthesis in operand %d."), | |
5323 | i.operands + 1); | |
5324 | else | |
5325 | as_bad (_("unbalanced brackets in operand %d."), | |
5326 | i.operands + 1); | |
5327 | return NULL; | |
5328 | } | |
5329 | else | |
5330 | break; /* we are done */ | |
5331 | } | |
d02603dc | 5332 | else if (!is_operand_char (*l) && !is_space_char (*l) && *l != '"') |
29b0f896 AM |
5333 | { |
5334 | as_bad (_("invalid character %s in operand %d"), | |
5335 | output_invalid (*l), | |
5336 | i.operands + 1); | |
5337 | return NULL; | |
5338 | } | |
5339 | if (!intel_syntax) | |
5340 | { | |
5341 | if (*l == '(') | |
5342 | ++paren_not_balanced; | |
5343 | if (*l == ')') | |
5344 | --paren_not_balanced; | |
5345 | } | |
5346 | else | |
5347 | { | |
5348 | if (*l == '[') | |
5349 | ++paren_not_balanced; | |
5350 | if (*l == ']') | |
5351 | --paren_not_balanced; | |
5352 | } | |
5353 | l++; | |
5354 | } | |
5355 | if (l != token_start) | |
5356 | { /* Yes, we've read in another operand. */ | |
5357 | unsigned int operand_ok; | |
5358 | this_operand = i.operands++; | |
5359 | if (i.operands > MAX_OPERANDS) | |
5360 | { | |
5361 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
5362 | MAX_OPERANDS); | |
5363 | return NULL; | |
5364 | } | |
9d46ce34 | 5365 | i.types[this_operand].bitfield.unspecified = 1; |
29b0f896 AM |
5366 | /* Now parse operand adding info to 'i' as we go along. */ |
5367 | END_STRING_AND_SAVE (l); | |
5368 | ||
1286ab78 L |
5369 | if (i.mem_operands > 1) |
5370 | { | |
5371 | as_bad (_("too many memory references for `%s'"), | |
5372 | mnemonic); | |
5373 | return 0; | |
5374 | } | |
5375 | ||
29b0f896 AM |
5376 | if (intel_syntax) |
5377 | operand_ok = | |
5378 | i386_intel_operand (token_start, | |
5379 | intel_float_operand (mnemonic)); | |
5380 | else | |
a7619375 | 5381 | operand_ok = i386_att_operand (token_start); |
29b0f896 AM |
5382 | |
5383 | RESTORE_END_STRING (l); | |
5384 | if (!operand_ok) | |
5385 | return NULL; | |
5386 | } | |
5387 | else | |
5388 | { | |
5389 | if (expecting_operand) | |
5390 | { | |
5391 | expecting_operand_after_comma: | |
5392 | as_bad (_("expecting operand after ','; got nothing")); | |
5393 | return NULL; | |
5394 | } | |
5395 | if (*l == ',') | |
5396 | { | |
5397 | as_bad (_("expecting operand before ','; got nothing")); | |
5398 | return NULL; | |
5399 | } | |
5400 | } | |
7f3f1ea2 | 5401 | |
29b0f896 AM |
5402 | /* Now *l must be either ',' or END_OF_INSN. */ |
5403 | if (*l == ',') | |
5404 | { | |
5405 | if (*++l == END_OF_INSN) | |
5406 | { | |
5407 | /* Just skip it, if it's \n complain. */ | |
5408 | goto expecting_operand_after_comma; | |
5409 | } | |
5410 | expecting_operand = 1; | |
5411 | } | |
5412 | } | |
5413 | return l; | |
5414 | } | |
7f3f1ea2 | 5415 | |
050dfa73 | 5416 | static void |
4d456e3d | 5417 | swap_2_operands (int xchg1, int xchg2) |
050dfa73 MM |
5418 | { |
5419 | union i386_op temp_op; | |
40fb9820 | 5420 | i386_operand_type temp_type; |
c48dadc9 | 5421 | unsigned int temp_flags; |
050dfa73 | 5422 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 5423 | |
050dfa73 MM |
5424 | temp_type = i.types[xchg2]; |
5425 | i.types[xchg2] = i.types[xchg1]; | |
5426 | i.types[xchg1] = temp_type; | |
c48dadc9 JB |
5427 | |
5428 | temp_flags = i.flags[xchg2]; | |
5429 | i.flags[xchg2] = i.flags[xchg1]; | |
5430 | i.flags[xchg1] = temp_flags; | |
5431 | ||
050dfa73 MM |
5432 | temp_op = i.op[xchg2]; |
5433 | i.op[xchg2] = i.op[xchg1]; | |
5434 | i.op[xchg1] = temp_op; | |
c48dadc9 | 5435 | |
050dfa73 MM |
5436 | temp_reloc = i.reloc[xchg2]; |
5437 | i.reloc[xchg2] = i.reloc[xchg1]; | |
5438 | i.reloc[xchg1] = temp_reloc; | |
43234a1e L |
5439 | |
5440 | if (i.mask) | |
5441 | { | |
5442 | if (i.mask->operand == xchg1) | |
5443 | i.mask->operand = xchg2; | |
5444 | else if (i.mask->operand == xchg2) | |
5445 | i.mask->operand = xchg1; | |
5446 | } | |
5447 | if (i.broadcast) | |
5448 | { | |
5449 | if (i.broadcast->operand == xchg1) | |
5450 | i.broadcast->operand = xchg2; | |
5451 | else if (i.broadcast->operand == xchg2) | |
5452 | i.broadcast->operand = xchg1; | |
5453 | } | |
5454 | if (i.rounding) | |
5455 | { | |
5456 | if (i.rounding->operand == xchg1) | |
5457 | i.rounding->operand = xchg2; | |
5458 | else if (i.rounding->operand == xchg2) | |
5459 | i.rounding->operand = xchg1; | |
5460 | } | |
050dfa73 MM |
5461 | } |
5462 | ||
29b0f896 | 5463 | static void |
e3bb37b5 | 5464 | swap_operands (void) |
29b0f896 | 5465 | { |
b7c61d9a | 5466 | switch (i.operands) |
050dfa73 | 5467 | { |
c0f3af97 | 5468 | case 5: |
b7c61d9a | 5469 | case 4: |
4d456e3d | 5470 | swap_2_operands (1, i.operands - 2); |
1a0670f3 | 5471 | /* Fall through. */ |
b7c61d9a L |
5472 | case 3: |
5473 | case 2: | |
4d456e3d | 5474 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
5475 | break; |
5476 | default: | |
5477 | abort (); | |
29b0f896 | 5478 | } |
29b0f896 AM |
5479 | |
5480 | if (i.mem_operands == 2) | |
5481 | { | |
5482 | const seg_entry *temp_seg; | |
5483 | temp_seg = i.seg[0]; | |
5484 | i.seg[0] = i.seg[1]; | |
5485 | i.seg[1] = temp_seg; | |
5486 | } | |
5487 | } | |
252b5132 | 5488 | |
29b0f896 AM |
5489 | /* Try to ensure constant immediates are represented in the smallest |
5490 | opcode possible. */ | |
5491 | static void | |
e3bb37b5 | 5492 | optimize_imm (void) |
29b0f896 AM |
5493 | { |
5494 | char guess_suffix = 0; | |
5495 | int op; | |
252b5132 | 5496 | |
29b0f896 AM |
5497 | if (i.suffix) |
5498 | guess_suffix = i.suffix; | |
5499 | else if (i.reg_operands) | |
5500 | { | |
5501 | /* Figure out a suffix from the last register operand specified. | |
75e5731b JB |
5502 | We can't do this properly yet, i.e. excluding special register |
5503 | instances, but the following works for instructions with | |
5504 | immediates. In any case, we can't set i.suffix yet. */ | |
29b0f896 | 5505 | for (op = i.operands; --op >= 0;) |
bab6aec1 JB |
5506 | if (i.types[op].bitfield.class != Reg) |
5507 | continue; | |
5508 | else if (i.types[op].bitfield.byte) | |
7ab9ffdd | 5509 | { |
40fb9820 L |
5510 | guess_suffix = BYTE_MNEM_SUFFIX; |
5511 | break; | |
5512 | } | |
bab6aec1 | 5513 | else if (i.types[op].bitfield.word) |
252b5132 | 5514 | { |
40fb9820 L |
5515 | guess_suffix = WORD_MNEM_SUFFIX; |
5516 | break; | |
5517 | } | |
bab6aec1 | 5518 | else if (i.types[op].bitfield.dword) |
40fb9820 L |
5519 | { |
5520 | guess_suffix = LONG_MNEM_SUFFIX; | |
5521 | break; | |
5522 | } | |
bab6aec1 | 5523 | else if (i.types[op].bitfield.qword) |
40fb9820 L |
5524 | { |
5525 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 5526 | break; |
252b5132 | 5527 | } |
29b0f896 AM |
5528 | } |
5529 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
5530 | guess_suffix = WORD_MNEM_SUFFIX; | |
5531 | ||
5532 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 5533 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
5534 | { |
5535 | switch (i.op[op].imms->X_op) | |
252b5132 | 5536 | { |
29b0f896 AM |
5537 | case O_constant: |
5538 | /* If a suffix is given, this operand may be shortened. */ | |
5539 | switch (guess_suffix) | |
252b5132 | 5540 | { |
29b0f896 | 5541 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
5542 | i.types[op].bitfield.imm32 = 1; |
5543 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5544 | break; |
5545 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
5546 | i.types[op].bitfield.imm16 = 1; |
5547 | i.types[op].bitfield.imm32 = 1; | |
5548 | i.types[op].bitfield.imm32s = 1; | |
5549 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5550 | break; |
5551 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
5552 | i.types[op].bitfield.imm8 = 1; |
5553 | i.types[op].bitfield.imm8s = 1; | |
5554 | i.types[op].bitfield.imm16 = 1; | |
5555 | i.types[op].bitfield.imm32 = 1; | |
5556 | i.types[op].bitfield.imm32s = 1; | |
5557 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 5558 | break; |
252b5132 | 5559 | } |
252b5132 | 5560 | |
29b0f896 AM |
5561 | /* If this operand is at most 16 bits, convert it |
5562 | to a signed 16 bit number before trying to see | |
5563 | whether it will fit in an even smaller size. | |
5564 | This allows a 16-bit operand such as $0xffe0 to | |
5565 | be recognised as within Imm8S range. */ | |
40fb9820 | 5566 | if ((i.types[op].bitfield.imm16) |
29b0f896 | 5567 | && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0) |
252b5132 | 5568 | { |
29b0f896 AM |
5569 | i.op[op].imms->X_add_number = |
5570 | (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000); | |
5571 | } | |
a28def75 L |
5572 | #ifdef BFD64 |
5573 | /* Store 32-bit immediate in 64-bit for 64-bit BFD. */ | |
40fb9820 | 5574 | if ((i.types[op].bitfield.imm32) |
29b0f896 AM |
5575 | && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1)) |
5576 | == 0)) | |
5577 | { | |
5578 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
5579 | ^ ((offsetT) 1 << 31)) | |
5580 | - ((offsetT) 1 << 31)); | |
5581 | } | |
a28def75 | 5582 | #endif |
40fb9820 | 5583 | i.types[op] |
c6fb90c8 L |
5584 | = operand_type_or (i.types[op], |
5585 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 5586 | |
29b0f896 AM |
5587 | /* We must avoid matching of Imm32 templates when 64bit |
5588 | only immediate is available. */ | |
5589 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 5590 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 5591 | break; |
252b5132 | 5592 | |
29b0f896 AM |
5593 | case O_absent: |
5594 | case O_register: | |
5595 | abort (); | |
5596 | ||
5597 | /* Symbols and expressions. */ | |
5598 | default: | |
9cd96992 JB |
5599 | /* Convert symbolic operand to proper sizes for matching, but don't |
5600 | prevent matching a set of insns that only supports sizes other | |
5601 | than those matching the insn suffix. */ | |
5602 | { | |
40fb9820 | 5603 | i386_operand_type mask, allowed; |
d3ce72d0 | 5604 | const insn_template *t; |
9cd96992 | 5605 | |
0dfbf9d7 L |
5606 | operand_type_set (&mask, 0); |
5607 | operand_type_set (&allowed, 0); | |
40fb9820 | 5608 | |
4eed87de AM |
5609 | for (t = current_templates->start; |
5610 | t < current_templates->end; | |
5611 | ++t) | |
bab6aec1 JB |
5612 | { |
5613 | allowed = operand_type_or (allowed, t->operand_types[op]); | |
5614 | allowed = operand_type_and (allowed, anyimm); | |
5615 | } | |
9cd96992 JB |
5616 | switch (guess_suffix) |
5617 | { | |
5618 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
5619 | mask.bitfield.imm64 = 1; |
5620 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
5621 | break; |
5622 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 5623 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
5624 | break; |
5625 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 5626 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
5627 | break; |
5628 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 5629 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
5630 | break; |
5631 | default: | |
9cd96992 JB |
5632 | break; |
5633 | } | |
c6fb90c8 | 5634 | allowed = operand_type_and (mask, allowed); |
0dfbf9d7 | 5635 | if (!operand_type_all_zero (&allowed)) |
c6fb90c8 | 5636 | i.types[op] = operand_type_and (i.types[op], mask); |
9cd96992 | 5637 | } |
29b0f896 | 5638 | break; |
252b5132 | 5639 | } |
29b0f896 AM |
5640 | } |
5641 | } | |
47926f60 | 5642 | |
29b0f896 AM |
5643 | /* Try to use the smallest displacement type too. */ |
5644 | static void | |
e3bb37b5 | 5645 | optimize_disp (void) |
29b0f896 AM |
5646 | { |
5647 | int op; | |
3e73aa7c | 5648 | |
29b0f896 | 5649 | for (op = i.operands; --op >= 0;) |
40fb9820 | 5650 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 5651 | { |
b300c311 | 5652 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 5653 | { |
91d6fa6a | 5654 | offsetT op_disp = i.op[op].disps->X_add_number; |
29b0f896 | 5655 | |
40fb9820 | 5656 | if (i.types[op].bitfield.disp16 |
91d6fa6a | 5657 | && (op_disp & ~(offsetT) 0xffff) == 0) |
b300c311 L |
5658 | { |
5659 | /* If this operand is at most 16 bits, convert | |
5660 | to a signed 16 bit number and don't use 64bit | |
5661 | displacement. */ | |
91d6fa6a | 5662 | op_disp = (((op_disp & 0xffff) ^ 0x8000) - 0x8000); |
40fb9820 | 5663 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 5664 | } |
a28def75 L |
5665 | #ifdef BFD64 |
5666 | /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */ | |
40fb9820 | 5667 | if (i.types[op].bitfield.disp32 |
91d6fa6a | 5668 | && (op_disp & ~(((offsetT) 2 << 31) - 1)) == 0) |
b300c311 L |
5669 | { |
5670 | /* If this operand is at most 32 bits, convert | |
5671 | to a signed 32 bit number and don't use 64bit | |
5672 | displacement. */ | |
91d6fa6a NC |
5673 | op_disp &= (((offsetT) 2 << 31) - 1); |
5674 | op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
40fb9820 | 5675 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 5676 | } |
a28def75 | 5677 | #endif |
91d6fa6a | 5678 | if (!op_disp && i.types[op].bitfield.baseindex) |
b300c311 | 5679 | { |
40fb9820 L |
5680 | i.types[op].bitfield.disp8 = 0; |
5681 | i.types[op].bitfield.disp16 = 0; | |
5682 | i.types[op].bitfield.disp32 = 0; | |
5683 | i.types[op].bitfield.disp32s = 0; | |
5684 | i.types[op].bitfield.disp64 = 0; | |
b300c311 L |
5685 | i.op[op].disps = 0; |
5686 | i.disp_operands--; | |
5687 | } | |
5688 | else if (flag_code == CODE_64BIT) | |
5689 | { | |
91d6fa6a | 5690 | if (fits_in_signed_long (op_disp)) |
28a9d8f5 | 5691 | { |
40fb9820 L |
5692 | i.types[op].bitfield.disp64 = 0; |
5693 | i.types[op].bitfield.disp32s = 1; | |
28a9d8f5 | 5694 | } |
0e1147d9 | 5695 | if (i.prefix[ADDR_PREFIX] |
91d6fa6a | 5696 | && fits_in_unsigned_long (op_disp)) |
40fb9820 | 5697 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 5698 | } |
40fb9820 L |
5699 | if ((i.types[op].bitfield.disp32 |
5700 | || i.types[op].bitfield.disp32s | |
5701 | || i.types[op].bitfield.disp16) | |
b5014f7a | 5702 | && fits_in_disp8 (op_disp)) |
40fb9820 | 5703 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 5704 | } |
67a4f2b7 AO |
5705 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
5706 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
5707 | { | |
5708 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
5709 | i.op[op].disps, 0, i.reloc[op]); | |
40fb9820 L |
5710 | i.types[op].bitfield.disp8 = 0; |
5711 | i.types[op].bitfield.disp16 = 0; | |
5712 | i.types[op].bitfield.disp32 = 0; | |
5713 | i.types[op].bitfield.disp32s = 0; | |
5714 | i.types[op].bitfield.disp64 = 0; | |
67a4f2b7 AO |
5715 | } |
5716 | else | |
b300c311 | 5717 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 5718 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 5719 | } |
29b0f896 AM |
5720 | } |
5721 | ||
4a1b91ea L |
5722 | /* Return 1 if there is a match in broadcast bytes between operand |
5723 | GIVEN and instruction template T. */ | |
5724 | ||
5725 | static INLINE int | |
5726 | match_broadcast_size (const insn_template *t, unsigned int given) | |
5727 | { | |
5728 | return ((t->opcode_modifier.broadcast == BYTE_BROADCAST | |
5729 | && i.types[given].bitfield.byte) | |
5730 | || (t->opcode_modifier.broadcast == WORD_BROADCAST | |
5731 | && i.types[given].bitfield.word) | |
5732 | || (t->opcode_modifier.broadcast == DWORD_BROADCAST | |
5733 | && i.types[given].bitfield.dword) | |
5734 | || (t->opcode_modifier.broadcast == QWORD_BROADCAST | |
5735 | && i.types[given].bitfield.qword)); | |
5736 | } | |
5737 | ||
6c30d220 L |
5738 | /* Check if operands are valid for the instruction. */ |
5739 | ||
5740 | static int | |
5741 | check_VecOperands (const insn_template *t) | |
5742 | { | |
43234a1e | 5743 | unsigned int op; |
e2195274 | 5744 | i386_cpu_flags cpu; |
e2195274 JB |
5745 | |
5746 | /* Templates allowing for ZMMword as well as YMMword and/or XMMword for | |
5747 | any one operand are implicity requiring AVX512VL support if the actual | |
5748 | operand size is YMMword or XMMword. Since this function runs after | |
5749 | template matching, there's no need to check for YMMword/XMMword in | |
5750 | the template. */ | |
5751 | cpu = cpu_flags_and (t->cpu_flags, avx512); | |
5752 | if (!cpu_flags_all_zero (&cpu) | |
5753 | && !t->cpu_flags.bitfield.cpuavx512vl | |
5754 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
5755 | { | |
5756 | for (op = 0; op < t->operands; ++op) | |
5757 | { | |
5758 | if (t->operand_types[op].bitfield.zmmword | |
5759 | && (i.types[op].bitfield.ymmword | |
5760 | || i.types[op].bitfield.xmmword)) | |
5761 | { | |
5762 | i.error = unsupported; | |
5763 | return 1; | |
5764 | } | |
5765 | } | |
5766 | } | |
43234a1e | 5767 | |
6c30d220 L |
5768 | /* Without VSIB byte, we can't have a vector register for index. */ |
5769 | if (!t->opcode_modifier.vecsib | |
5770 | && i.index_reg | |
1b54b8d7 JB |
5771 | && (i.index_reg->reg_type.bitfield.xmmword |
5772 | || i.index_reg->reg_type.bitfield.ymmword | |
5773 | || i.index_reg->reg_type.bitfield.zmmword)) | |
6c30d220 L |
5774 | { |
5775 | i.error = unsupported_vector_index_register; | |
5776 | return 1; | |
5777 | } | |
5778 | ||
ad8ecc81 MZ |
5779 | /* Check if default mask is allowed. */ |
5780 | if (t->opcode_modifier.nodefmask | |
5781 | && (!i.mask || i.mask->mask->reg_num == 0)) | |
5782 | { | |
5783 | i.error = no_default_mask; | |
5784 | return 1; | |
5785 | } | |
5786 | ||
7bab8ab5 JB |
5787 | /* For VSIB byte, we need a vector register for index, and all vector |
5788 | registers must be distinct. */ | |
5789 | if (t->opcode_modifier.vecsib) | |
5790 | { | |
5791 | if (!i.index_reg | |
6c30d220 | 5792 | || !((t->opcode_modifier.vecsib == VecSIB128 |
1b54b8d7 | 5793 | && i.index_reg->reg_type.bitfield.xmmword) |
6c30d220 | 5794 | || (t->opcode_modifier.vecsib == VecSIB256 |
1b54b8d7 | 5795 | && i.index_reg->reg_type.bitfield.ymmword) |
43234a1e | 5796 | || (t->opcode_modifier.vecsib == VecSIB512 |
1b54b8d7 | 5797 | && i.index_reg->reg_type.bitfield.zmmword))) |
7bab8ab5 JB |
5798 | { |
5799 | i.error = invalid_vsib_address; | |
5800 | return 1; | |
5801 | } | |
5802 | ||
43234a1e L |
5803 | gas_assert (i.reg_operands == 2 || i.mask); |
5804 | if (i.reg_operands == 2 && !i.mask) | |
5805 | { | |
3528c362 | 5806 | gas_assert (i.types[0].bitfield.class == RegSIMD); |
1b54b8d7 JB |
5807 | gas_assert (i.types[0].bitfield.xmmword |
5808 | || i.types[0].bitfield.ymmword); | |
3528c362 | 5809 | gas_assert (i.types[2].bitfield.class == RegSIMD); |
1b54b8d7 JB |
5810 | gas_assert (i.types[2].bitfield.xmmword |
5811 | || i.types[2].bitfield.ymmword); | |
43234a1e L |
5812 | if (operand_check == check_none) |
5813 | return 0; | |
5814 | if (register_number (i.op[0].regs) | |
5815 | != register_number (i.index_reg) | |
5816 | && register_number (i.op[2].regs) | |
5817 | != register_number (i.index_reg) | |
5818 | && register_number (i.op[0].regs) | |
5819 | != register_number (i.op[2].regs)) | |
5820 | return 0; | |
5821 | if (operand_check == check_error) | |
5822 | { | |
5823 | i.error = invalid_vector_register_set; | |
5824 | return 1; | |
5825 | } | |
5826 | as_warn (_("mask, index, and destination registers should be distinct")); | |
5827 | } | |
8444f82a MZ |
5828 | else if (i.reg_operands == 1 && i.mask) |
5829 | { | |
3528c362 | 5830 | if (i.types[1].bitfield.class == RegSIMD |
1b54b8d7 JB |
5831 | && (i.types[1].bitfield.xmmword |
5832 | || i.types[1].bitfield.ymmword | |
5833 | || i.types[1].bitfield.zmmword) | |
8444f82a MZ |
5834 | && (register_number (i.op[1].regs) |
5835 | == register_number (i.index_reg))) | |
5836 | { | |
5837 | if (operand_check == check_error) | |
5838 | { | |
5839 | i.error = invalid_vector_register_set; | |
5840 | return 1; | |
5841 | } | |
5842 | if (operand_check != check_none) | |
5843 | as_warn (_("index and destination registers should be distinct")); | |
5844 | } | |
5845 | } | |
43234a1e | 5846 | } |
7bab8ab5 | 5847 | |
43234a1e L |
5848 | /* Check if broadcast is supported by the instruction and is applied |
5849 | to the memory operand. */ | |
5850 | if (i.broadcast) | |
5851 | { | |
8e6e0792 | 5852 | i386_operand_type type, overlap; |
43234a1e L |
5853 | |
5854 | /* Check if specified broadcast is supported in this instruction, | |
4a1b91ea | 5855 | and its broadcast bytes match the memory operand. */ |
32546502 | 5856 | op = i.broadcast->operand; |
8e6e0792 | 5857 | if (!t->opcode_modifier.broadcast |
c48dadc9 | 5858 | || !(i.flags[op] & Operand_Mem) |
c39e5b26 | 5859 | || (!i.types[op].bitfield.unspecified |
4a1b91ea | 5860 | && !match_broadcast_size (t, op))) |
43234a1e L |
5861 | { |
5862 | bad_broadcast: | |
5863 | i.error = unsupported_broadcast; | |
5864 | return 1; | |
5865 | } | |
8e6e0792 | 5866 | |
4a1b91ea L |
5867 | i.broadcast->bytes = ((1 << (t->opcode_modifier.broadcast - 1)) |
5868 | * i.broadcast->type); | |
8e6e0792 | 5869 | operand_type_set (&type, 0); |
4a1b91ea | 5870 | switch (i.broadcast->bytes) |
8e6e0792 | 5871 | { |
4a1b91ea L |
5872 | case 2: |
5873 | type.bitfield.word = 1; | |
5874 | break; | |
5875 | case 4: | |
5876 | type.bitfield.dword = 1; | |
5877 | break; | |
8e6e0792 JB |
5878 | case 8: |
5879 | type.bitfield.qword = 1; | |
5880 | break; | |
5881 | case 16: | |
5882 | type.bitfield.xmmword = 1; | |
5883 | break; | |
5884 | case 32: | |
5885 | type.bitfield.ymmword = 1; | |
5886 | break; | |
5887 | case 64: | |
5888 | type.bitfield.zmmword = 1; | |
5889 | break; | |
5890 | default: | |
5891 | goto bad_broadcast; | |
5892 | } | |
5893 | ||
5894 | overlap = operand_type_and (type, t->operand_types[op]); | |
bc49bfd8 JB |
5895 | if (t->operand_types[op].bitfield.class == RegSIMD |
5896 | && t->operand_types[op].bitfield.byte | |
5897 | + t->operand_types[op].bitfield.word | |
5898 | + t->operand_types[op].bitfield.dword | |
5899 | + t->operand_types[op].bitfield.qword > 1) | |
5900 | { | |
5901 | overlap.bitfield.xmmword = 0; | |
5902 | overlap.bitfield.ymmword = 0; | |
5903 | overlap.bitfield.zmmword = 0; | |
5904 | } | |
8e6e0792 JB |
5905 | if (operand_type_all_zero (&overlap)) |
5906 | goto bad_broadcast; | |
5907 | ||
5908 | if (t->opcode_modifier.checkregsize) | |
5909 | { | |
5910 | unsigned int j; | |
5911 | ||
e2195274 | 5912 | type.bitfield.baseindex = 1; |
8e6e0792 JB |
5913 | for (j = 0; j < i.operands; ++j) |
5914 | { | |
5915 | if (j != op | |
5916 | && !operand_type_register_match(i.types[j], | |
5917 | t->operand_types[j], | |
5918 | type, | |
5919 | t->operand_types[op])) | |
5920 | goto bad_broadcast; | |
5921 | } | |
5922 | } | |
43234a1e L |
5923 | } |
5924 | /* If broadcast is supported in this instruction, we need to check if | |
5925 | operand of one-element size isn't specified without broadcast. */ | |
5926 | else if (t->opcode_modifier.broadcast && i.mem_operands) | |
5927 | { | |
5928 | /* Find memory operand. */ | |
5929 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 5930 | if (i.flags[op] & Operand_Mem) |
43234a1e L |
5931 | break; |
5932 | gas_assert (op < i.operands); | |
5933 | /* Check size of the memory operand. */ | |
4a1b91ea | 5934 | if (match_broadcast_size (t, op)) |
43234a1e L |
5935 | { |
5936 | i.error = broadcast_needed; | |
5937 | return 1; | |
5938 | } | |
5939 | } | |
c39e5b26 JB |
5940 | else |
5941 | op = MAX_OPERANDS - 1; /* Avoid uninitialized variable warning. */ | |
43234a1e L |
5942 | |
5943 | /* Check if requested masking is supported. */ | |
ae2387fe | 5944 | if (i.mask) |
43234a1e | 5945 | { |
ae2387fe JB |
5946 | switch (t->opcode_modifier.masking) |
5947 | { | |
5948 | case BOTH_MASKING: | |
5949 | break; | |
5950 | case MERGING_MASKING: | |
5951 | if (i.mask->zeroing) | |
5952 | { | |
5953 | case 0: | |
5954 | i.error = unsupported_masking; | |
5955 | return 1; | |
5956 | } | |
5957 | break; | |
5958 | case DYNAMIC_MASKING: | |
5959 | /* Memory destinations allow only merging masking. */ | |
5960 | if (i.mask->zeroing && i.mem_operands) | |
5961 | { | |
5962 | /* Find memory operand. */ | |
5963 | for (op = 0; op < i.operands; op++) | |
c48dadc9 | 5964 | if (i.flags[op] & Operand_Mem) |
ae2387fe JB |
5965 | break; |
5966 | gas_assert (op < i.operands); | |
5967 | if (op == i.operands - 1) | |
5968 | { | |
5969 | i.error = unsupported_masking; | |
5970 | return 1; | |
5971 | } | |
5972 | } | |
5973 | break; | |
5974 | default: | |
5975 | abort (); | |
5976 | } | |
43234a1e L |
5977 | } |
5978 | ||
5979 | /* Check if masking is applied to dest operand. */ | |
5980 | if (i.mask && (i.mask->operand != (int) (i.operands - 1))) | |
5981 | { | |
5982 | i.error = mask_not_on_destination; | |
5983 | return 1; | |
5984 | } | |
5985 | ||
43234a1e L |
5986 | /* Check RC/SAE. */ |
5987 | if (i.rounding) | |
5988 | { | |
a80195f1 JB |
5989 | if (!t->opcode_modifier.sae |
5990 | || (i.rounding->type != saeonly && !t->opcode_modifier.staticrounding)) | |
43234a1e L |
5991 | { |
5992 | i.error = unsupported_rc_sae; | |
5993 | return 1; | |
5994 | } | |
5995 | /* If the instruction has several immediate operands and one of | |
5996 | them is rounding, the rounding operand should be the last | |
5997 | immediate operand. */ | |
5998 | if (i.imm_operands > 1 | |
5999 | && i.rounding->operand != (int) (i.imm_operands - 1)) | |
7bab8ab5 | 6000 | { |
43234a1e | 6001 | i.error = rc_sae_operand_not_last_imm; |
7bab8ab5 JB |
6002 | return 1; |
6003 | } | |
6c30d220 L |
6004 | } |
6005 | ||
43234a1e | 6006 | /* Check vector Disp8 operand. */ |
b5014f7a JB |
6007 | if (t->opcode_modifier.disp8memshift |
6008 | && i.disp_encoding != disp_encoding_32bit) | |
43234a1e L |
6009 | { |
6010 | if (i.broadcast) | |
4a1b91ea | 6011 | i.memshift = t->opcode_modifier.broadcast - 1; |
7091c612 | 6012 | else if (t->opcode_modifier.disp8memshift != DISP8_SHIFT_VL) |
43234a1e | 6013 | i.memshift = t->opcode_modifier.disp8memshift; |
7091c612 JB |
6014 | else |
6015 | { | |
6016 | const i386_operand_type *type = NULL; | |
6017 | ||
6018 | i.memshift = 0; | |
6019 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 6020 | if (i.flags[op] & Operand_Mem) |
7091c612 | 6021 | { |
4174bfff JB |
6022 | if (t->opcode_modifier.evex == EVEXLIG) |
6023 | i.memshift = 2 + (i.suffix == QWORD_MNEM_SUFFIX); | |
6024 | else if (t->operand_types[op].bitfield.xmmword | |
6025 | + t->operand_types[op].bitfield.ymmword | |
6026 | + t->operand_types[op].bitfield.zmmword <= 1) | |
7091c612 JB |
6027 | type = &t->operand_types[op]; |
6028 | else if (!i.types[op].bitfield.unspecified) | |
6029 | type = &i.types[op]; | |
6030 | } | |
3528c362 | 6031 | else if (i.types[op].bitfield.class == RegSIMD |
4174bfff | 6032 | && t->opcode_modifier.evex != EVEXLIG) |
7091c612 JB |
6033 | { |
6034 | if (i.types[op].bitfield.zmmword) | |
6035 | i.memshift = 6; | |
6036 | else if (i.types[op].bitfield.ymmword && i.memshift < 5) | |
6037 | i.memshift = 5; | |
6038 | else if (i.types[op].bitfield.xmmword && i.memshift < 4) | |
6039 | i.memshift = 4; | |
6040 | } | |
6041 | ||
6042 | if (type) | |
6043 | { | |
6044 | if (type->bitfield.zmmword) | |
6045 | i.memshift = 6; | |
6046 | else if (type->bitfield.ymmword) | |
6047 | i.memshift = 5; | |
6048 | else if (type->bitfield.xmmword) | |
6049 | i.memshift = 4; | |
6050 | } | |
6051 | ||
6052 | /* For the check in fits_in_disp8(). */ | |
6053 | if (i.memshift == 0) | |
6054 | i.memshift = -1; | |
6055 | } | |
43234a1e L |
6056 | |
6057 | for (op = 0; op < i.operands; op++) | |
6058 | if (operand_type_check (i.types[op], disp) | |
6059 | && i.op[op].disps->X_op == O_constant) | |
6060 | { | |
b5014f7a | 6061 | if (fits_in_disp8 (i.op[op].disps->X_add_number)) |
43234a1e | 6062 | { |
b5014f7a JB |
6063 | i.types[op].bitfield.disp8 = 1; |
6064 | return 0; | |
43234a1e | 6065 | } |
b5014f7a | 6066 | i.types[op].bitfield.disp8 = 0; |
43234a1e L |
6067 | } |
6068 | } | |
b5014f7a JB |
6069 | |
6070 | i.memshift = 0; | |
43234a1e | 6071 | |
6c30d220 L |
6072 | return 0; |
6073 | } | |
6074 | ||
43f3e2ee | 6075 | /* Check if operands are valid for the instruction. Update VEX |
a683cc34 SP |
6076 | operand types. */ |
6077 | ||
6078 | static int | |
6079 | VEX_check_operands (const insn_template *t) | |
6080 | { | |
86fa6981 | 6081 | if (i.vec_encoding == vex_encoding_evex) |
43234a1e | 6082 | { |
86fa6981 | 6083 | /* This instruction must be encoded with EVEX prefix. */ |
e771e7c9 | 6084 | if (!is_evex_encoding (t)) |
86fa6981 L |
6085 | { |
6086 | i.error = unsupported; | |
6087 | return 1; | |
6088 | } | |
6089 | return 0; | |
43234a1e L |
6090 | } |
6091 | ||
a683cc34 | 6092 | if (!t->opcode_modifier.vex) |
86fa6981 L |
6093 | { |
6094 | /* This instruction template doesn't have VEX prefix. */ | |
6095 | if (i.vec_encoding != vex_encoding_default) | |
6096 | { | |
6097 | i.error = unsupported; | |
6098 | return 1; | |
6099 | } | |
6100 | return 0; | |
6101 | } | |
a683cc34 | 6102 | |
9d3bf266 JB |
6103 | /* Check the special Imm4 cases; must be the first operand. */ |
6104 | if (t->cpu_flags.bitfield.cpuxop && t->operands == 5) | |
a683cc34 SP |
6105 | { |
6106 | if (i.op[0].imms->X_op != O_constant | |
6107 | || !fits_in_imm4 (i.op[0].imms->X_add_number)) | |
891edac4 | 6108 | { |
a65babc9 | 6109 | i.error = bad_imm4; |
891edac4 L |
6110 | return 1; |
6111 | } | |
a683cc34 | 6112 | |
9d3bf266 JB |
6113 | /* Turn off Imm<N> so that update_imm won't complain. */ |
6114 | operand_type_set (&i.types[0], 0); | |
a683cc34 SP |
6115 | } |
6116 | ||
6117 | return 0; | |
6118 | } | |
6119 | ||
d3ce72d0 | 6120 | static const insn_template * |
83b16ac6 | 6121 | match_template (char mnem_suffix) |
29b0f896 AM |
6122 | { |
6123 | /* Points to template once we've found it. */ | |
d3ce72d0 | 6124 | const insn_template *t; |
40fb9820 | 6125 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
c0f3af97 | 6126 | i386_operand_type overlap4; |
29b0f896 | 6127 | unsigned int found_reverse_match; |
dc2be329 | 6128 | i386_opcode_modifier suffix_check; |
40fb9820 | 6129 | i386_operand_type operand_types [MAX_OPERANDS]; |
539e75ad | 6130 | int addr_prefix_disp; |
45a4bb20 | 6131 | unsigned int j, size_match, check_register; |
5614d22c | 6132 | enum i386_error specific_error = 0; |
29b0f896 | 6133 | |
c0f3af97 L |
6134 | #if MAX_OPERANDS != 5 |
6135 | # error "MAX_OPERANDS must be 5." | |
f48ff2ae L |
6136 | #endif |
6137 | ||
29b0f896 | 6138 | found_reverse_match = 0; |
539e75ad | 6139 | addr_prefix_disp = -1; |
40fb9820 | 6140 | |
dc2be329 | 6141 | /* Prepare for mnemonic suffix check. */ |
40fb9820 | 6142 | memset (&suffix_check, 0, sizeof (suffix_check)); |
dc2be329 L |
6143 | switch (mnem_suffix) |
6144 | { | |
6145 | case BYTE_MNEM_SUFFIX: | |
6146 | suffix_check.no_bsuf = 1; | |
6147 | break; | |
6148 | case WORD_MNEM_SUFFIX: | |
6149 | suffix_check.no_wsuf = 1; | |
6150 | break; | |
6151 | case SHORT_MNEM_SUFFIX: | |
6152 | suffix_check.no_ssuf = 1; | |
6153 | break; | |
6154 | case LONG_MNEM_SUFFIX: | |
6155 | suffix_check.no_lsuf = 1; | |
6156 | break; | |
6157 | case QWORD_MNEM_SUFFIX: | |
6158 | suffix_check.no_qsuf = 1; | |
6159 | break; | |
6160 | default: | |
6161 | /* NB: In Intel syntax, normally we can check for memory operand | |
6162 | size when there is no mnemonic suffix. But jmp and call have | |
6163 | 2 different encodings with Dword memory operand size, one with | |
6164 | No_ldSuf and the other without. i.suffix is set to | |
6165 | LONG_DOUBLE_MNEM_SUFFIX to skip the one with No_ldSuf. */ | |
6166 | if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
6167 | suffix_check.no_ldsuf = 1; | |
83b16ac6 JB |
6168 | } |
6169 | ||
01559ecc L |
6170 | /* Must have right number of operands. */ |
6171 | i.error = number_of_operands_mismatch; | |
6172 | ||
45aa61fe | 6173 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 6174 | { |
539e75ad | 6175 | addr_prefix_disp = -1; |
dbbc8b7e | 6176 | found_reverse_match = 0; |
539e75ad | 6177 | |
29b0f896 AM |
6178 | if (i.operands != t->operands) |
6179 | continue; | |
6180 | ||
50aecf8c | 6181 | /* Check processor support. */ |
a65babc9 | 6182 | i.error = unsupported; |
45a4bb20 | 6183 | if (cpu_flags_match (t) != CPU_FLAGS_PERFECT_MATCH) |
50aecf8c L |
6184 | continue; |
6185 | ||
e1d4d893 | 6186 | /* Check AT&T mnemonic. */ |
a65babc9 | 6187 | i.error = unsupported_with_intel_mnemonic; |
e1d4d893 | 6188 | if (intel_mnemonic && t->opcode_modifier.attmnemonic) |
1efbbeb4 L |
6189 | continue; |
6190 | ||
4b5aaf5f | 6191 | /* Check AT&T/Intel syntax. */ |
a65babc9 | 6192 | i.error = unsupported_syntax; |
5c07affc | 6193 | if ((intel_syntax && t->opcode_modifier.attsyntax) |
4b5aaf5f | 6194 | || (!intel_syntax && t->opcode_modifier.intelsyntax)) |
1efbbeb4 L |
6195 | continue; |
6196 | ||
4b5aaf5f L |
6197 | /* Check Intel64/AMD64 ISA. */ |
6198 | switch (isa64) | |
6199 | { | |
6200 | default: | |
6201 | /* Default: Don't accept Intel64. */ | |
6202 | if (t->opcode_modifier.isa64 == INTEL64) | |
6203 | continue; | |
6204 | break; | |
6205 | case amd64: | |
6206 | /* -mamd64: Don't accept Intel64 and Intel64 only. */ | |
6207 | if (t->opcode_modifier.isa64 >= INTEL64) | |
6208 | continue; | |
6209 | break; | |
6210 | case intel64: | |
6211 | /* -mintel64: Don't accept AMD64. */ | |
5990e377 | 6212 | if (t->opcode_modifier.isa64 == AMD64 && flag_code == CODE_64BIT) |
4b5aaf5f L |
6213 | continue; |
6214 | break; | |
6215 | } | |
6216 | ||
dc2be329 | 6217 | /* Check the suffix. */ |
a65babc9 | 6218 | i.error = invalid_instruction_suffix; |
dc2be329 L |
6219 | if ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf) |
6220 | || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf) | |
6221 | || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf) | |
6222 | || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf) | |
6223 | || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf) | |
6224 | || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf)) | |
83b16ac6 | 6225 | continue; |
29b0f896 | 6226 | |
3ac21baa JB |
6227 | size_match = operand_size_match (t); |
6228 | if (!size_match) | |
7d5e4556 | 6229 | continue; |
539e75ad | 6230 | |
6f2f06be JB |
6231 | /* This is intentionally not |
6232 | ||
0cfa3eb3 | 6233 | if (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE)) |
6f2f06be JB |
6234 | |
6235 | as the case of a missing * on the operand is accepted (perhaps with | |
6236 | a warning, issued further down). */ | |
0cfa3eb3 | 6237 | if (i.jumpabsolute && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
6f2f06be JB |
6238 | { |
6239 | i.error = operand_type_mismatch; | |
6240 | continue; | |
6241 | } | |
6242 | ||
5c07affc L |
6243 | for (j = 0; j < MAX_OPERANDS; j++) |
6244 | operand_types[j] = t->operand_types[j]; | |
6245 | ||
e365e234 JB |
6246 | /* In general, don't allow |
6247 | - 64-bit operands outside of 64-bit mode, | |
6248 | - 32-bit operands on pre-386. */ | |
4873e243 | 6249 | j = i.imm_operands + (t->operands > i.imm_operands + 1); |
e365e234 JB |
6250 | if (((i.suffix == QWORD_MNEM_SUFFIX |
6251 | && flag_code != CODE_64BIT | |
6252 | && (t->base_opcode != 0x0fc7 | |
6253 | || t->extension_opcode != 1 /* cmpxchg8b */)) | |
6254 | || (i.suffix == LONG_MNEM_SUFFIX | |
6255 | && !cpu_arch_flags.bitfield.cpui386)) | |
45aa61fe | 6256 | && (intel_syntax |
3cd7f3e3 | 6257 | ? (t->opcode_modifier.mnemonicsize != IGNORESIZE |
45aa61fe AM |
6258 | && !intel_float_operand (t->name)) |
6259 | : intel_float_operand (t->name) != 2) | |
4873e243 JB |
6260 | && (t->operands == i.imm_operands |
6261 | || (operand_types[i.imm_operands].bitfield.class != RegMMX | |
6262 | && operand_types[i.imm_operands].bitfield.class != RegSIMD | |
6263 | && operand_types[i.imm_operands].bitfield.class != RegMask) | |
6264 | || (operand_types[j].bitfield.class != RegMMX | |
6265 | && operand_types[j].bitfield.class != RegSIMD | |
6266 | && operand_types[j].bitfield.class != RegMask)) | |
6267 | && !t->opcode_modifier.vecsib) | |
192dc9c6 JB |
6268 | continue; |
6269 | ||
29b0f896 | 6270 | /* Do not verify operands when there are none. */ |
e365e234 JB |
6271 | if (!t->operands) |
6272 | /* We've found a match; break out of loop. */ | |
6273 | break; | |
252b5132 | 6274 | |
48bcea9f JB |
6275 | if (!t->opcode_modifier.jump |
6276 | || t->opcode_modifier.jump == JUMP_ABSOLUTE) | |
6277 | { | |
6278 | /* There should be only one Disp operand. */ | |
6279 | for (j = 0; j < MAX_OPERANDS; j++) | |
6280 | if (operand_type_check (operand_types[j], disp)) | |
539e75ad | 6281 | break; |
48bcea9f JB |
6282 | if (j < MAX_OPERANDS) |
6283 | { | |
6284 | bfd_boolean override = (i.prefix[ADDR_PREFIX] != 0); | |
6285 | ||
6286 | addr_prefix_disp = j; | |
6287 | ||
6288 | /* Address size prefix will turn Disp64/Disp32S/Disp32/Disp16 | |
6289 | operand into Disp32/Disp32/Disp16/Disp32 operand. */ | |
6290 | switch (flag_code) | |
40fb9820 | 6291 | { |
48bcea9f JB |
6292 | case CODE_16BIT: |
6293 | override = !override; | |
6294 | /* Fall through. */ | |
6295 | case CODE_32BIT: | |
6296 | if (operand_types[j].bitfield.disp32 | |
6297 | && operand_types[j].bitfield.disp16) | |
40fb9820 | 6298 | { |
48bcea9f JB |
6299 | operand_types[j].bitfield.disp16 = override; |
6300 | operand_types[j].bitfield.disp32 = !override; | |
40fb9820 | 6301 | } |
48bcea9f JB |
6302 | operand_types[j].bitfield.disp32s = 0; |
6303 | operand_types[j].bitfield.disp64 = 0; | |
6304 | break; | |
6305 | ||
6306 | case CODE_64BIT: | |
6307 | if (operand_types[j].bitfield.disp32s | |
6308 | || operand_types[j].bitfield.disp64) | |
40fb9820 | 6309 | { |
48bcea9f JB |
6310 | operand_types[j].bitfield.disp64 &= !override; |
6311 | operand_types[j].bitfield.disp32s &= !override; | |
6312 | operand_types[j].bitfield.disp32 = override; | |
40fb9820 | 6313 | } |
48bcea9f JB |
6314 | operand_types[j].bitfield.disp16 = 0; |
6315 | break; | |
40fb9820 | 6316 | } |
539e75ad | 6317 | } |
48bcea9f | 6318 | } |
539e75ad | 6319 | |
02a86693 L |
6320 | /* Force 0x8b encoding for "mov foo@GOT, %eax". */ |
6321 | if (i.reloc[0] == BFD_RELOC_386_GOT32 && t->base_opcode == 0xa0) | |
6322 | continue; | |
6323 | ||
56ffb741 | 6324 | /* We check register size if needed. */ |
e2195274 JB |
6325 | if (t->opcode_modifier.checkregsize) |
6326 | { | |
6327 | check_register = (1 << t->operands) - 1; | |
6328 | if (i.broadcast) | |
6329 | check_register &= ~(1 << i.broadcast->operand); | |
6330 | } | |
6331 | else | |
6332 | check_register = 0; | |
6333 | ||
c6fb90c8 | 6334 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
6335 | switch (t->operands) |
6336 | { | |
6337 | case 1: | |
40fb9820 | 6338 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
6339 | continue; |
6340 | break; | |
6341 | case 2: | |
33eaf5de | 6342 | /* xchg %eax, %eax is a special case. It is an alias for nop |
8b38ad71 L |
6343 | only in 32bit mode and we can use opcode 0x90. In 64bit |
6344 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
6345 | zero-extend %eax to %rax. */ | |
6346 | if (flag_code == CODE_64BIT | |
6347 | && t->base_opcode == 0x90 | |
75e5731b JB |
6348 | && i.types[0].bitfield.instance == Accum |
6349 | && i.types[0].bitfield.dword | |
6350 | && i.types[1].bitfield.instance == Accum | |
6351 | && i.types[1].bitfield.dword) | |
8b38ad71 | 6352 | continue; |
1212781b JB |
6353 | /* xrelease mov %eax, <disp> is another special case. It must not |
6354 | match the accumulator-only encoding of mov. */ | |
6355 | if (flag_code != CODE_64BIT | |
6356 | && i.hle_prefix | |
6357 | && t->base_opcode == 0xa0 | |
75e5731b | 6358 | && i.types[0].bitfield.instance == Accum |
8dc0818e | 6359 | && (i.flags[1] & Operand_Mem)) |
1212781b | 6360 | continue; |
f5eb1d70 JB |
6361 | /* Fall through. */ |
6362 | ||
6363 | case 3: | |
3ac21baa JB |
6364 | if (!(size_match & MATCH_STRAIGHT)) |
6365 | goto check_reverse; | |
64c49ab3 JB |
6366 | /* Reverse direction of operands if swapping is possible in the first |
6367 | place (operands need to be symmetric) and | |
6368 | - the load form is requested, and the template is a store form, | |
6369 | - the store form is requested, and the template is a load form, | |
6370 | - the non-default (swapped) form is requested. */ | |
6371 | overlap1 = operand_type_and (operand_types[0], operand_types[1]); | |
f5eb1d70 | 6372 | if (t->opcode_modifier.d && i.reg_operands == i.operands |
64c49ab3 JB |
6373 | && !operand_type_all_zero (&overlap1)) |
6374 | switch (i.dir_encoding) | |
6375 | { | |
6376 | case dir_encoding_load: | |
6377 | if (operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6378 | || t->opcode_modifier.regmem) |
64c49ab3 JB |
6379 | goto check_reverse; |
6380 | break; | |
6381 | ||
6382 | case dir_encoding_store: | |
6383 | if (!operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6384 | && !t->opcode_modifier.regmem) |
64c49ab3 JB |
6385 | goto check_reverse; |
6386 | break; | |
6387 | ||
6388 | case dir_encoding_swap: | |
6389 | goto check_reverse; | |
6390 | ||
6391 | case dir_encoding_default: | |
6392 | break; | |
6393 | } | |
86fa6981 | 6394 | /* If we want store form, we skip the current load. */ |
64c49ab3 JB |
6395 | if ((i.dir_encoding == dir_encoding_store |
6396 | || i.dir_encoding == dir_encoding_swap) | |
86fa6981 L |
6397 | && i.mem_operands == 0 |
6398 | && t->opcode_modifier.load) | |
fa99fab2 | 6399 | continue; |
1a0670f3 | 6400 | /* Fall through. */ |
f48ff2ae | 6401 | case 4: |
c0f3af97 | 6402 | case 5: |
c6fb90c8 | 6403 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
6404 | if (!operand_type_match (overlap0, i.types[0]) |
6405 | || !operand_type_match (overlap1, i.types[1]) | |
e2195274 | 6406 | || ((check_register & 3) == 3 |
dc821c5f | 6407 | && !operand_type_register_match (i.types[0], |
40fb9820 | 6408 | operand_types[0], |
dc821c5f | 6409 | i.types[1], |
40fb9820 | 6410 | operand_types[1]))) |
29b0f896 AM |
6411 | { |
6412 | /* Check if other direction is valid ... */ | |
38e314eb | 6413 | if (!t->opcode_modifier.d) |
29b0f896 AM |
6414 | continue; |
6415 | ||
dc1e8a47 | 6416 | check_reverse: |
3ac21baa JB |
6417 | if (!(size_match & MATCH_REVERSE)) |
6418 | continue; | |
29b0f896 | 6419 | /* Try reversing direction of operands. */ |
f5eb1d70 JB |
6420 | overlap0 = operand_type_and (i.types[0], operand_types[i.operands - 1]); |
6421 | overlap1 = operand_type_and (i.types[i.operands - 1], operand_types[0]); | |
40fb9820 | 6422 | if (!operand_type_match (overlap0, i.types[0]) |
f5eb1d70 | 6423 | || !operand_type_match (overlap1, i.types[i.operands - 1]) |
45664ddb | 6424 | || (check_register |
dc821c5f | 6425 | && !operand_type_register_match (i.types[0], |
f5eb1d70 JB |
6426 | operand_types[i.operands - 1], |
6427 | i.types[i.operands - 1], | |
45664ddb | 6428 | operand_types[0]))) |
29b0f896 AM |
6429 | { |
6430 | /* Does not match either direction. */ | |
6431 | continue; | |
6432 | } | |
38e314eb | 6433 | /* found_reverse_match holds which of D or FloatR |
29b0f896 | 6434 | we've found. */ |
38e314eb JB |
6435 | if (!t->opcode_modifier.d) |
6436 | found_reverse_match = 0; | |
6437 | else if (operand_types[0].bitfield.tbyte) | |
8a2ed489 | 6438 | found_reverse_match = Opcode_FloatD; |
dbbc8b7e | 6439 | else if (operand_types[0].bitfield.xmmword |
f5eb1d70 | 6440 | || operand_types[i.operands - 1].bitfield.xmmword |
3528c362 JB |
6441 | || operand_types[0].bitfield.class == RegMMX |
6442 | || operand_types[i.operands - 1].bitfield.class == RegMMX | |
dbbc8b7e JB |
6443 | || is_any_vex_encoding(t)) |
6444 | found_reverse_match = (t->base_opcode & 0xee) != 0x6e | |
6445 | ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD; | |
8a2ed489 | 6446 | else |
38e314eb | 6447 | found_reverse_match = Opcode_D; |
40fb9820 | 6448 | if (t->opcode_modifier.floatr) |
8a2ed489 | 6449 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 6450 | } |
f48ff2ae | 6451 | else |
29b0f896 | 6452 | { |
f48ff2ae | 6453 | /* Found a forward 2 operand match here. */ |
d1cbb4db L |
6454 | switch (t->operands) |
6455 | { | |
c0f3af97 L |
6456 | case 5: |
6457 | overlap4 = operand_type_and (i.types[4], | |
6458 | operand_types[4]); | |
1a0670f3 | 6459 | /* Fall through. */ |
d1cbb4db | 6460 | case 4: |
c6fb90c8 L |
6461 | overlap3 = operand_type_and (i.types[3], |
6462 | operand_types[3]); | |
1a0670f3 | 6463 | /* Fall through. */ |
d1cbb4db | 6464 | case 3: |
c6fb90c8 L |
6465 | overlap2 = operand_type_and (i.types[2], |
6466 | operand_types[2]); | |
d1cbb4db L |
6467 | break; |
6468 | } | |
29b0f896 | 6469 | |
f48ff2ae L |
6470 | switch (t->operands) |
6471 | { | |
c0f3af97 L |
6472 | case 5: |
6473 | if (!operand_type_match (overlap4, i.types[4]) | |
dc821c5f | 6474 | || !operand_type_register_match (i.types[3], |
c0f3af97 | 6475 | operand_types[3], |
c0f3af97 L |
6476 | i.types[4], |
6477 | operand_types[4])) | |
6478 | continue; | |
1a0670f3 | 6479 | /* Fall through. */ |
f48ff2ae | 6480 | case 4: |
40fb9820 | 6481 | if (!operand_type_match (overlap3, i.types[3]) |
e2195274 JB |
6482 | || ((check_register & 0xa) == 0xa |
6483 | && !operand_type_register_match (i.types[1], | |
f7768225 JB |
6484 | operand_types[1], |
6485 | i.types[3], | |
e2195274 JB |
6486 | operand_types[3])) |
6487 | || ((check_register & 0xc) == 0xc | |
6488 | && !operand_type_register_match (i.types[2], | |
6489 | operand_types[2], | |
6490 | i.types[3], | |
6491 | operand_types[3]))) | |
f48ff2ae | 6492 | continue; |
1a0670f3 | 6493 | /* Fall through. */ |
f48ff2ae L |
6494 | case 3: |
6495 | /* Here we make use of the fact that there are no | |
23e42951 | 6496 | reverse match 3 operand instructions. */ |
40fb9820 | 6497 | if (!operand_type_match (overlap2, i.types[2]) |
e2195274 JB |
6498 | || ((check_register & 5) == 5 |
6499 | && !operand_type_register_match (i.types[0], | |
23e42951 JB |
6500 | operand_types[0], |
6501 | i.types[2], | |
e2195274 JB |
6502 | operand_types[2])) |
6503 | || ((check_register & 6) == 6 | |
6504 | && !operand_type_register_match (i.types[1], | |
6505 | operand_types[1], | |
6506 | i.types[2], | |
6507 | operand_types[2]))) | |
f48ff2ae L |
6508 | continue; |
6509 | break; | |
6510 | } | |
29b0f896 | 6511 | } |
f48ff2ae | 6512 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
6513 | slip through to break. */ |
6514 | } | |
c0f3af97 | 6515 | |
5614d22c JB |
6516 | /* Check if vector and VEX operands are valid. */ |
6517 | if (check_VecOperands (t) || VEX_check_operands (t)) | |
6518 | { | |
6519 | specific_error = i.error; | |
6520 | continue; | |
6521 | } | |
a683cc34 | 6522 | |
29b0f896 AM |
6523 | /* We've found a match; break out of loop. */ |
6524 | break; | |
6525 | } | |
6526 | ||
6527 | if (t == current_templates->end) | |
6528 | { | |
6529 | /* We found no match. */ | |
a65babc9 | 6530 | const char *err_msg; |
5614d22c | 6531 | switch (specific_error ? specific_error : i.error) |
a65babc9 L |
6532 | { |
6533 | default: | |
6534 | abort (); | |
86e026a4 | 6535 | case operand_size_mismatch: |
a65babc9 L |
6536 | err_msg = _("operand size mismatch"); |
6537 | break; | |
6538 | case operand_type_mismatch: | |
6539 | err_msg = _("operand type mismatch"); | |
6540 | break; | |
6541 | case register_type_mismatch: | |
6542 | err_msg = _("register type mismatch"); | |
6543 | break; | |
6544 | case number_of_operands_mismatch: | |
6545 | err_msg = _("number of operands mismatch"); | |
6546 | break; | |
6547 | case invalid_instruction_suffix: | |
6548 | err_msg = _("invalid instruction suffix"); | |
6549 | break; | |
6550 | case bad_imm4: | |
4a2608e3 | 6551 | err_msg = _("constant doesn't fit in 4 bits"); |
a65babc9 | 6552 | break; |
a65babc9 L |
6553 | case unsupported_with_intel_mnemonic: |
6554 | err_msg = _("unsupported with Intel mnemonic"); | |
6555 | break; | |
6556 | case unsupported_syntax: | |
6557 | err_msg = _("unsupported syntax"); | |
6558 | break; | |
6559 | case unsupported: | |
35262a23 | 6560 | as_bad (_("unsupported instruction `%s'"), |
10efe3f6 L |
6561 | current_templates->start->name); |
6562 | return NULL; | |
6c30d220 L |
6563 | case invalid_vsib_address: |
6564 | err_msg = _("invalid VSIB address"); | |
6565 | break; | |
7bab8ab5 JB |
6566 | case invalid_vector_register_set: |
6567 | err_msg = _("mask, index, and destination registers must be distinct"); | |
6568 | break; | |
6c30d220 L |
6569 | case unsupported_vector_index_register: |
6570 | err_msg = _("unsupported vector index register"); | |
6571 | break; | |
43234a1e L |
6572 | case unsupported_broadcast: |
6573 | err_msg = _("unsupported broadcast"); | |
6574 | break; | |
43234a1e L |
6575 | case broadcast_needed: |
6576 | err_msg = _("broadcast is needed for operand of such type"); | |
6577 | break; | |
6578 | case unsupported_masking: | |
6579 | err_msg = _("unsupported masking"); | |
6580 | break; | |
6581 | case mask_not_on_destination: | |
6582 | err_msg = _("mask not on destination operand"); | |
6583 | break; | |
6584 | case no_default_mask: | |
6585 | err_msg = _("default mask isn't allowed"); | |
6586 | break; | |
6587 | case unsupported_rc_sae: | |
6588 | err_msg = _("unsupported static rounding/sae"); | |
6589 | break; | |
6590 | case rc_sae_operand_not_last_imm: | |
6591 | if (intel_syntax) | |
6592 | err_msg = _("RC/SAE operand must precede immediate operands"); | |
6593 | else | |
6594 | err_msg = _("RC/SAE operand must follow immediate operands"); | |
6595 | break; | |
6596 | case invalid_register_operand: | |
6597 | err_msg = _("invalid register operand"); | |
6598 | break; | |
a65babc9 L |
6599 | } |
6600 | as_bad (_("%s for `%s'"), err_msg, | |
891edac4 | 6601 | current_templates->start->name); |
fa99fab2 | 6602 | return NULL; |
29b0f896 | 6603 | } |
252b5132 | 6604 | |
29b0f896 AM |
6605 | if (!quiet_warnings) |
6606 | { | |
6607 | if (!intel_syntax | |
0cfa3eb3 | 6608 | && (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE))) |
6f2f06be | 6609 | as_warn (_("indirect %s without `*'"), t->name); |
29b0f896 | 6610 | |
40fb9820 | 6611 | if (t->opcode_modifier.isprefix |
3cd7f3e3 | 6612 | && t->opcode_modifier.mnemonicsize == IGNORESIZE) |
29b0f896 AM |
6613 | { |
6614 | /* Warn them that a data or address size prefix doesn't | |
6615 | affect assembly of the next line of code. */ | |
6616 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
6617 | } | |
6618 | } | |
6619 | ||
6620 | /* Copy the template we found. */ | |
6621 | i.tm = *t; | |
539e75ad L |
6622 | |
6623 | if (addr_prefix_disp != -1) | |
6624 | i.tm.operand_types[addr_prefix_disp] | |
6625 | = operand_types[addr_prefix_disp]; | |
6626 | ||
29b0f896 AM |
6627 | if (found_reverse_match) |
6628 | { | |
dfd69174 JB |
6629 | /* If we found a reverse match we must alter the opcode direction |
6630 | bit and clear/flip the regmem modifier one. found_reverse_match | |
6631 | holds bits to change (different for int & float insns). */ | |
29b0f896 AM |
6632 | |
6633 | i.tm.base_opcode ^= found_reverse_match; | |
6634 | ||
f5eb1d70 JB |
6635 | i.tm.operand_types[0] = operand_types[i.operands - 1]; |
6636 | i.tm.operand_types[i.operands - 1] = operand_types[0]; | |
dfd69174 JB |
6637 | |
6638 | /* Certain SIMD insns have their load forms specified in the opcode | |
6639 | table, and hence we need to _set_ RegMem instead of clearing it. | |
6640 | We need to avoid setting the bit though on insns like KMOVW. */ | |
6641 | i.tm.opcode_modifier.regmem | |
6642 | = i.tm.opcode_modifier.modrm && i.tm.opcode_modifier.d | |
6643 | && i.tm.operands > 2U - i.tm.opcode_modifier.sse2avx | |
6644 | && !i.tm.opcode_modifier.regmem; | |
29b0f896 AM |
6645 | } |
6646 | ||
fa99fab2 | 6647 | return t; |
29b0f896 AM |
6648 | } |
6649 | ||
6650 | static int | |
e3bb37b5 | 6651 | check_string (void) |
29b0f896 | 6652 | { |
51c8edf6 JB |
6653 | unsigned int es_op = i.tm.opcode_modifier.isstring - IS_STRING_ES_OP0; |
6654 | unsigned int op = i.tm.operand_types[0].bitfield.baseindex ? es_op : 0; | |
8dc0818e | 6655 | |
51c8edf6 | 6656 | if (i.seg[op] != NULL && i.seg[op] != &es) |
29b0f896 | 6657 | { |
51c8edf6 JB |
6658 | as_bad (_("`%s' operand %u must use `%ses' segment"), |
6659 | i.tm.name, | |
6660 | intel_syntax ? i.tm.operands - es_op : es_op + 1, | |
6661 | register_prefix); | |
6662 | return 0; | |
29b0f896 | 6663 | } |
51c8edf6 JB |
6664 | |
6665 | /* There's only ever one segment override allowed per instruction. | |
6666 | This instruction possibly has a legal segment override on the | |
6667 | second operand, so copy the segment to where non-string | |
6668 | instructions store it, allowing common code. */ | |
6669 | i.seg[op] = i.seg[1]; | |
6670 | ||
29b0f896 AM |
6671 | return 1; |
6672 | } | |
6673 | ||
6674 | static int | |
543613e9 | 6675 | process_suffix (void) |
29b0f896 AM |
6676 | { |
6677 | /* If matched instruction specifies an explicit instruction mnemonic | |
6678 | suffix, use it. */ | |
673fe0f0 | 6679 | if (i.tm.opcode_modifier.size == SIZE16) |
40fb9820 | 6680 | i.suffix = WORD_MNEM_SUFFIX; |
673fe0f0 | 6681 | else if (i.tm.opcode_modifier.size == SIZE32) |
40fb9820 | 6682 | i.suffix = LONG_MNEM_SUFFIX; |
673fe0f0 | 6683 | else if (i.tm.opcode_modifier.size == SIZE64) |
40fb9820 | 6684 | i.suffix = QWORD_MNEM_SUFFIX; |
13e600d0 | 6685 | else if (i.reg_operands |
c8f8eebc JB |
6686 | && (i.operands > 1 || i.types[0].bitfield.class == Reg) |
6687 | && !i.tm.opcode_modifier.addrprefixopreg) | |
29b0f896 | 6688 | { |
65fca059 JB |
6689 | unsigned int numop = i.operands; |
6690 | ||
6691 | /* movsx/movzx want only their source operand considered here, for the | |
6692 | ambiguity checking below. The suffix will be replaced afterwards | |
6693 | to represent the destination (register). */ | |
6694 | if (((i.tm.base_opcode | 8) == 0xfbe && i.tm.opcode_modifier.w) | |
6695 | || (i.tm.base_opcode == 0x63 && i.tm.cpu_flags.bitfield.cpu64)) | |
6696 | --i.operands; | |
6697 | ||
643bb870 JB |
6698 | /* crc32 needs REX.W set regardless of suffix / source operand size. */ |
6699 | if (i.tm.base_opcode == 0xf20f38f0 | |
6700 | && i.tm.operand_types[1].bitfield.qword) | |
6701 | i.rex |= REX_W; | |
6702 | ||
29b0f896 | 6703 | /* If there's no instruction mnemonic suffix we try to invent one |
13e600d0 | 6704 | based on GPR operands. */ |
29b0f896 AM |
6705 | if (!i.suffix) |
6706 | { | |
6707 | /* We take i.suffix from the last register operand specified, | |
6708 | Destination register type is more significant than source | |
381d071f L |
6709 | register type. crc32 in SSE4.2 prefers source register |
6710 | type. */ | |
1a035124 | 6711 | unsigned int op = i.tm.base_opcode != 0xf20f38f0 ? i.operands : 1; |
20592a94 | 6712 | |
1a035124 JB |
6713 | while (op--) |
6714 | if (i.tm.operand_types[op].bitfield.instance == InstanceNone | |
6715 | || i.tm.operand_types[op].bitfield.instance == Accum) | |
6716 | { | |
6717 | if (i.types[op].bitfield.class != Reg) | |
6718 | continue; | |
6719 | if (i.types[op].bitfield.byte) | |
6720 | i.suffix = BYTE_MNEM_SUFFIX; | |
6721 | else if (i.types[op].bitfield.word) | |
6722 | i.suffix = WORD_MNEM_SUFFIX; | |
6723 | else if (i.types[op].bitfield.dword) | |
6724 | i.suffix = LONG_MNEM_SUFFIX; | |
6725 | else if (i.types[op].bitfield.qword) | |
6726 | i.suffix = QWORD_MNEM_SUFFIX; | |
6727 | else | |
6728 | continue; | |
6729 | break; | |
6730 | } | |
65fca059 JB |
6731 | |
6732 | /* As an exception, movsx/movzx silently default to a byte source | |
6733 | in AT&T mode. */ | |
6734 | if ((i.tm.base_opcode | 8) == 0xfbe && i.tm.opcode_modifier.w | |
6735 | && !i.suffix && !intel_syntax) | |
6736 | i.suffix = BYTE_MNEM_SUFFIX; | |
29b0f896 AM |
6737 | } |
6738 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
6739 | { | |
2eb952a4 | 6740 | if (intel_syntax |
3cd7f3e3 | 6741 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE |
2eb952a4 L |
6742 | && i.tm.opcode_modifier.no_bsuf) |
6743 | i.suffix = 0; | |
6744 | else if (!check_byte_reg ()) | |
29b0f896 AM |
6745 | return 0; |
6746 | } | |
6747 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
6748 | { | |
2eb952a4 | 6749 | if (intel_syntax |
3cd7f3e3 | 6750 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE |
9f123b91 JB |
6751 | && i.tm.opcode_modifier.no_lsuf |
6752 | && !i.tm.opcode_modifier.todword | |
6753 | && !i.tm.opcode_modifier.toqword) | |
2eb952a4 L |
6754 | i.suffix = 0; |
6755 | else if (!check_long_reg ()) | |
29b0f896 AM |
6756 | return 0; |
6757 | } | |
6758 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
6759 | { | |
955e1e6a | 6760 | if (intel_syntax |
3cd7f3e3 | 6761 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE |
9f123b91 JB |
6762 | && i.tm.opcode_modifier.no_qsuf |
6763 | && !i.tm.opcode_modifier.todword | |
6764 | && !i.tm.opcode_modifier.toqword) | |
955e1e6a L |
6765 | i.suffix = 0; |
6766 | else if (!check_qword_reg ()) | |
29b0f896 AM |
6767 | return 0; |
6768 | } | |
6769 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
6770 | { | |
2eb952a4 | 6771 | if (intel_syntax |
3cd7f3e3 | 6772 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE |
2eb952a4 L |
6773 | && i.tm.opcode_modifier.no_wsuf) |
6774 | i.suffix = 0; | |
6775 | else if (!check_word_reg ()) | |
29b0f896 AM |
6776 | return 0; |
6777 | } | |
3cd7f3e3 L |
6778 | else if (intel_syntax |
6779 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE) | |
29b0f896 AM |
6780 | /* Do nothing if the instruction is going to ignore the prefix. */ |
6781 | ; | |
6782 | else | |
6783 | abort (); | |
65fca059 JB |
6784 | |
6785 | /* Undo the movsx/movzx change done above. */ | |
6786 | i.operands = numop; | |
29b0f896 | 6787 | } |
3cd7f3e3 L |
6788 | else if (i.tm.opcode_modifier.mnemonicsize == DEFAULTSIZE |
6789 | && !i.suffix) | |
29b0f896 | 6790 | { |
13e600d0 JB |
6791 | i.suffix = stackop_size; |
6792 | if (stackop_size == LONG_MNEM_SUFFIX) | |
06f74c5c L |
6793 | { |
6794 | /* stackop_size is set to LONG_MNEM_SUFFIX for the | |
6795 | .code16gcc directive to support 16-bit mode with | |
6796 | 32-bit address. For IRET without a suffix, generate | |
6797 | 16-bit IRET (opcode 0xcf) to return from an interrupt | |
6798 | handler. */ | |
13e600d0 JB |
6799 | if (i.tm.base_opcode == 0xcf) |
6800 | { | |
6801 | i.suffix = WORD_MNEM_SUFFIX; | |
6802 | as_warn (_("generating 16-bit `iret' for .code16gcc directive")); | |
6803 | } | |
6804 | /* Warn about changed behavior for segment register push/pop. */ | |
6805 | else if ((i.tm.base_opcode | 1) == 0x07) | |
6806 | as_warn (_("generating 32-bit `%s', unlike earlier gas versions"), | |
6807 | i.tm.name); | |
06f74c5c | 6808 | } |
29b0f896 | 6809 | } |
c006a730 | 6810 | else if (!i.suffix |
0cfa3eb3 JB |
6811 | && (i.tm.opcode_modifier.jump == JUMP_ABSOLUTE |
6812 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
6813 | || i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT | |
64e74474 AM |
6814 | || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */ |
6815 | && i.tm.extension_opcode <= 3))) | |
9306ca4a JB |
6816 | { |
6817 | switch (flag_code) | |
6818 | { | |
6819 | case CODE_64BIT: | |
40fb9820 | 6820 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a JB |
6821 | { |
6822 | i.suffix = QWORD_MNEM_SUFFIX; | |
6823 | break; | |
6824 | } | |
1a0670f3 | 6825 | /* Fall through. */ |
9306ca4a | 6826 | case CODE_32BIT: |
40fb9820 | 6827 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
6828 | i.suffix = LONG_MNEM_SUFFIX; |
6829 | break; | |
6830 | case CODE_16BIT: | |
40fb9820 | 6831 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
6832 | i.suffix = WORD_MNEM_SUFFIX; |
6833 | break; | |
6834 | } | |
6835 | } | |
252b5132 | 6836 | |
c006a730 | 6837 | if (!i.suffix |
3cd7f3e3 | 6838 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 JB |
6839 | /* Also cover lret/retf/iret in 64-bit mode. */ |
6840 | || (flag_code == CODE_64BIT | |
6841 | && !i.tm.opcode_modifier.no_lsuf | |
6842 | && !i.tm.opcode_modifier.no_qsuf)) | |
3cd7f3e3 | 6843 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
62b3f548 JB |
6844 | /* Accept FLDENV et al without suffix. */ |
6845 | && (i.tm.opcode_modifier.no_ssuf || i.tm.opcode_modifier.floatmf)) | |
29b0f896 | 6846 | { |
6c0946d0 | 6847 | unsigned int suffixes, evex = 0; |
c006a730 JB |
6848 | |
6849 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
6850 | if (!i.tm.opcode_modifier.no_wsuf) | |
6851 | suffixes |= 1 << 1; | |
6852 | if (!i.tm.opcode_modifier.no_lsuf) | |
6853 | suffixes |= 1 << 2; | |
6854 | if (!i.tm.opcode_modifier.no_ldsuf) | |
6855 | suffixes |= 1 << 3; | |
6856 | if (!i.tm.opcode_modifier.no_ssuf) | |
6857 | suffixes |= 1 << 4; | |
6858 | if (flag_code == CODE_64BIT && !i.tm.opcode_modifier.no_qsuf) | |
6859 | suffixes |= 1 << 5; | |
6860 | ||
6c0946d0 JB |
6861 | /* For [XYZ]MMWORD operands inspect operand sizes. While generally |
6862 | also suitable for AT&T syntax mode, it was requested that this be | |
6863 | restricted to just Intel syntax. */ | |
b9915cbc | 6864 | if (intel_syntax && is_any_vex_encoding (&i.tm) && !i.broadcast) |
6c0946d0 | 6865 | { |
b9915cbc | 6866 | unsigned int op; |
6c0946d0 | 6867 | |
b9915cbc | 6868 | for (op = 0; op < i.tm.operands; ++op) |
6c0946d0 | 6869 | { |
b9915cbc JB |
6870 | if (is_evex_encoding (&i.tm) |
6871 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
6c0946d0 | 6872 | { |
b9915cbc JB |
6873 | if (i.tm.operand_types[op].bitfield.ymmword) |
6874 | i.tm.operand_types[op].bitfield.xmmword = 0; | |
6875 | if (i.tm.operand_types[op].bitfield.zmmword) | |
6876 | i.tm.operand_types[op].bitfield.ymmword = 0; | |
6877 | if (!i.tm.opcode_modifier.evex | |
6878 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
6879 | i.tm.opcode_modifier.evex = EVEX512; | |
6880 | } | |
6c0946d0 | 6881 | |
b9915cbc JB |
6882 | if (i.tm.operand_types[op].bitfield.xmmword |
6883 | + i.tm.operand_types[op].bitfield.ymmword | |
6884 | + i.tm.operand_types[op].bitfield.zmmword < 2) | |
6885 | continue; | |
6c0946d0 | 6886 | |
b9915cbc JB |
6887 | /* Any properly sized operand disambiguates the insn. */ |
6888 | if (i.types[op].bitfield.xmmword | |
6889 | || i.types[op].bitfield.ymmword | |
6890 | || i.types[op].bitfield.zmmword) | |
6891 | { | |
6892 | suffixes &= ~(7 << 6); | |
6893 | evex = 0; | |
6894 | break; | |
6895 | } | |
6c0946d0 | 6896 | |
b9915cbc JB |
6897 | if ((i.flags[op] & Operand_Mem) |
6898 | && i.tm.operand_types[op].bitfield.unspecified) | |
6899 | { | |
6900 | if (i.tm.operand_types[op].bitfield.xmmword) | |
6901 | suffixes |= 1 << 6; | |
6902 | if (i.tm.operand_types[op].bitfield.ymmword) | |
6903 | suffixes |= 1 << 7; | |
6904 | if (i.tm.operand_types[op].bitfield.zmmword) | |
6905 | suffixes |= 1 << 8; | |
6906 | if (is_evex_encoding (&i.tm)) | |
6907 | evex = EVEX512; | |
6c0946d0 JB |
6908 | } |
6909 | } | |
6910 | } | |
6911 | ||
6912 | /* Are multiple suffixes / operand sizes allowed? */ | |
c006a730 | 6913 | if (suffixes & (suffixes - 1)) |
9306ca4a | 6914 | { |
873494c8 | 6915 | if (intel_syntax |
3cd7f3e3 | 6916 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 | 6917 | || operand_check == check_error)) |
9306ca4a | 6918 | { |
c006a730 | 6919 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); |
9306ca4a JB |
6920 | return 0; |
6921 | } | |
c006a730 | 6922 | if (operand_check == check_error) |
9306ca4a | 6923 | { |
c006a730 JB |
6924 | as_bad (_("no instruction mnemonic suffix given and " |
6925 | "no register operands; can't size `%s'"), i.tm.name); | |
9306ca4a JB |
6926 | return 0; |
6927 | } | |
c006a730 | 6928 | if (operand_check == check_warning) |
873494c8 JB |
6929 | as_warn (_("%s; using default for `%s'"), |
6930 | intel_syntax | |
6931 | ? _("ambiguous operand size") | |
6932 | : _("no instruction mnemonic suffix given and " | |
6933 | "no register operands"), | |
6934 | i.tm.name); | |
c006a730 JB |
6935 | |
6936 | if (i.tm.opcode_modifier.floatmf) | |
6937 | i.suffix = SHORT_MNEM_SUFFIX; | |
65fca059 JB |
6938 | else if ((i.tm.base_opcode | 8) == 0xfbe |
6939 | || (i.tm.base_opcode == 0x63 | |
6940 | && i.tm.cpu_flags.bitfield.cpu64)) | |
6941 | /* handled below */; | |
6c0946d0 JB |
6942 | else if (evex) |
6943 | i.tm.opcode_modifier.evex = evex; | |
c006a730 JB |
6944 | else if (flag_code == CODE_16BIT) |
6945 | i.suffix = WORD_MNEM_SUFFIX; | |
1a035124 | 6946 | else if (!i.tm.opcode_modifier.no_lsuf) |
c006a730 | 6947 | i.suffix = LONG_MNEM_SUFFIX; |
1a035124 JB |
6948 | else |
6949 | i.suffix = QWORD_MNEM_SUFFIX; | |
9306ca4a | 6950 | } |
29b0f896 | 6951 | } |
252b5132 | 6952 | |
65fca059 JB |
6953 | if ((i.tm.base_opcode | 8) == 0xfbe |
6954 | || (i.tm.base_opcode == 0x63 && i.tm.cpu_flags.bitfield.cpu64)) | |
6955 | { | |
6956 | /* In Intel syntax, movsx/movzx must have a "suffix" (checked above). | |
6957 | In AT&T syntax, if there is no suffix (warned about above), the default | |
6958 | will be byte extension. */ | |
6959 | if (i.tm.opcode_modifier.w && i.suffix && i.suffix != BYTE_MNEM_SUFFIX) | |
6960 | i.tm.base_opcode |= 1; | |
6961 | ||
6962 | /* For further processing, the suffix should represent the destination | |
6963 | (register). This is already the case when one was used with | |
6964 | mov[sz][bw]*, but we need to replace it for mov[sz]x, or if there was | |
6965 | no suffix to begin with. */ | |
6966 | if (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63 || !i.suffix) | |
6967 | { | |
6968 | if (i.types[1].bitfield.word) | |
6969 | i.suffix = WORD_MNEM_SUFFIX; | |
6970 | else if (i.types[1].bitfield.qword) | |
6971 | i.suffix = QWORD_MNEM_SUFFIX; | |
6972 | else | |
6973 | i.suffix = LONG_MNEM_SUFFIX; | |
6974 | ||
6975 | i.tm.opcode_modifier.w = 0; | |
6976 | } | |
6977 | } | |
6978 | ||
50128d0c JB |
6979 | if (!i.tm.opcode_modifier.modrm && i.reg_operands && i.tm.operands < 3) |
6980 | i.short_form = (i.tm.operand_types[0].bitfield.class == Reg) | |
6981 | != (i.tm.operand_types[1].bitfield.class == Reg); | |
6982 | ||
d2224064 JB |
6983 | /* Change the opcode based on the operand size given by i.suffix. */ |
6984 | switch (i.suffix) | |
29b0f896 | 6985 | { |
d2224064 JB |
6986 | /* Size floating point instruction. */ |
6987 | case LONG_MNEM_SUFFIX: | |
6988 | if (i.tm.opcode_modifier.floatmf) | |
6989 | { | |
6990 | i.tm.base_opcode ^= 4; | |
6991 | break; | |
6992 | } | |
6993 | /* fall through */ | |
6994 | case WORD_MNEM_SUFFIX: | |
6995 | case QWORD_MNEM_SUFFIX: | |
29b0f896 | 6996 | /* It's not a byte, select word/dword operation. */ |
40fb9820 | 6997 | if (i.tm.opcode_modifier.w) |
29b0f896 | 6998 | { |
50128d0c | 6999 | if (i.short_form) |
29b0f896 AM |
7000 | i.tm.base_opcode |= 8; |
7001 | else | |
7002 | i.tm.base_opcode |= 1; | |
7003 | } | |
d2224064 JB |
7004 | /* fall through */ |
7005 | case SHORT_MNEM_SUFFIX: | |
29b0f896 AM |
7006 | /* Now select between word & dword operations via the operand |
7007 | size prefix, except for instructions that will ignore this | |
7008 | prefix anyway. */ | |
c8f8eebc | 7009 | if (i.suffix != QWORD_MNEM_SUFFIX |
3cd7f3e3 | 7010 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
c8f8eebc JB |
7011 | && !i.tm.opcode_modifier.floatmf |
7012 | && !is_any_vex_encoding (&i.tm) | |
7013 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) | |
7014 | || (flag_code == CODE_64BIT | |
7015 | && i.tm.opcode_modifier.jump == JUMP_BYTE))) | |
24eab124 AM |
7016 | { |
7017 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 7018 | |
0cfa3eb3 | 7019 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) /* jcxz, loop */ |
29b0f896 | 7020 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 7021 | |
29b0f896 AM |
7022 | if (!add_prefix (prefix)) |
7023 | return 0; | |
24eab124 | 7024 | } |
252b5132 | 7025 | |
29b0f896 AM |
7026 | /* Set mode64 for an operand. */ |
7027 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 7028 | && flag_code == CODE_64BIT |
d2224064 | 7029 | && !i.tm.opcode_modifier.norex64 |
4ed21b58 | 7030 | && !i.tm.opcode_modifier.vexw |
46e883c5 | 7031 | /* Special case for xchg %rax,%rax. It is NOP and doesn't |
d2224064 JB |
7032 | need rex64. */ |
7033 | && ! (i.operands == 2 | |
7034 | && i.tm.base_opcode == 0x90 | |
7035 | && i.tm.extension_opcode == None | |
75e5731b JB |
7036 | && i.types[0].bitfield.instance == Accum |
7037 | && i.types[0].bitfield.qword | |
7038 | && i.types[1].bitfield.instance == Accum | |
7039 | && i.types[1].bitfield.qword)) | |
d2224064 | 7040 | i.rex |= REX_W; |
3e73aa7c | 7041 | |
d2224064 | 7042 | break; |
29b0f896 | 7043 | } |
7ecd2f8b | 7044 | |
c8f8eebc | 7045 | if (i.tm.opcode_modifier.addrprefixopreg) |
c0a30a9f | 7046 | { |
c8f8eebc JB |
7047 | gas_assert (!i.suffix); |
7048 | gas_assert (i.reg_operands); | |
c0a30a9f | 7049 | |
c8f8eebc JB |
7050 | if (i.tm.operand_types[0].bitfield.instance == Accum |
7051 | || i.operands == 1) | |
7052 | { | |
7053 | /* The address size override prefix changes the size of the | |
7054 | first operand. */ | |
7055 | if (flag_code == CODE_64BIT | |
7056 | && i.op[0].regs->reg_type.bitfield.word) | |
7057 | { | |
7058 | as_bad (_("16-bit addressing unavailable for `%s'"), | |
7059 | i.tm.name); | |
7060 | return 0; | |
7061 | } | |
7062 | ||
7063 | if ((flag_code == CODE_32BIT | |
7064 | ? i.op[0].regs->reg_type.bitfield.word | |
7065 | : i.op[0].regs->reg_type.bitfield.dword) | |
7066 | && !add_prefix (ADDR_PREFIX_OPCODE)) | |
7067 | return 0; | |
7068 | } | |
c0a30a9f L |
7069 | else |
7070 | { | |
c8f8eebc JB |
7071 | /* Check invalid register operand when the address size override |
7072 | prefix changes the size of register operands. */ | |
7073 | unsigned int op; | |
7074 | enum { need_word, need_dword, need_qword } need; | |
7075 | ||
7076 | if (flag_code == CODE_32BIT) | |
7077 | need = i.prefix[ADDR_PREFIX] ? need_word : need_dword; | |
7078 | else if (i.prefix[ADDR_PREFIX]) | |
c0a30a9f L |
7079 | need = need_dword; |
7080 | else | |
7081 | need = flag_code == CODE_64BIT ? need_qword : need_word; | |
c0a30a9f | 7082 | |
c8f8eebc JB |
7083 | for (op = 0; op < i.operands; op++) |
7084 | { | |
7085 | if (i.types[op].bitfield.class != Reg) | |
7086 | continue; | |
7087 | ||
7088 | switch (need) | |
7089 | { | |
7090 | case need_word: | |
7091 | if (i.op[op].regs->reg_type.bitfield.word) | |
7092 | continue; | |
7093 | break; | |
7094 | case need_dword: | |
7095 | if (i.op[op].regs->reg_type.bitfield.dword) | |
7096 | continue; | |
7097 | break; | |
7098 | case need_qword: | |
7099 | if (i.op[op].regs->reg_type.bitfield.qword) | |
7100 | continue; | |
7101 | break; | |
7102 | } | |
7103 | ||
7104 | as_bad (_("invalid register operand size for `%s'"), | |
7105 | i.tm.name); | |
7106 | return 0; | |
7107 | } | |
7108 | } | |
c0a30a9f L |
7109 | } |
7110 | ||
29b0f896 AM |
7111 | return 1; |
7112 | } | |
3e73aa7c | 7113 | |
29b0f896 | 7114 | static int |
543613e9 | 7115 | check_byte_reg (void) |
29b0f896 AM |
7116 | { |
7117 | int op; | |
543613e9 | 7118 | |
29b0f896 AM |
7119 | for (op = i.operands; --op >= 0;) |
7120 | { | |
dc821c5f | 7121 | /* Skip non-register operands. */ |
bab6aec1 | 7122 | if (i.types[op].bitfield.class != Reg) |
dc821c5f JB |
7123 | continue; |
7124 | ||
29b0f896 AM |
7125 | /* If this is an eight bit register, it's OK. If it's the 16 or |
7126 | 32 bit version of an eight bit register, we will just use the | |
7127 | low portion, and that's OK too. */ | |
dc821c5f | 7128 | if (i.types[op].bitfield.byte) |
29b0f896 AM |
7129 | continue; |
7130 | ||
5a819eb9 | 7131 | /* I/O port address operands are OK too. */ |
75e5731b JB |
7132 | if (i.tm.operand_types[op].bitfield.instance == RegD |
7133 | && i.tm.operand_types[op].bitfield.word) | |
5a819eb9 JB |
7134 | continue; |
7135 | ||
9706160a JB |
7136 | /* crc32 only wants its source operand checked here. */ |
7137 | if (i.tm.base_opcode == 0xf20f38f0 && op) | |
9344ff29 L |
7138 | continue; |
7139 | ||
29b0f896 | 7140 | /* Any other register is bad. */ |
bab6aec1 | 7141 | if (i.types[op].bitfield.class == Reg |
3528c362 JB |
7142 | || i.types[op].bitfield.class == RegMMX |
7143 | || i.types[op].bitfield.class == RegSIMD | |
00cee14f | 7144 | || i.types[op].bitfield.class == SReg |
4a5c67ed JB |
7145 | || i.types[op].bitfield.class == RegCR |
7146 | || i.types[op].bitfield.class == RegDR | |
7147 | || i.types[op].bitfield.class == RegTR) | |
29b0f896 | 7148 | { |
a540244d L |
7149 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7150 | register_prefix, | |
29b0f896 AM |
7151 | i.op[op].regs->reg_name, |
7152 | i.tm.name, | |
7153 | i.suffix); | |
7154 | return 0; | |
7155 | } | |
7156 | } | |
7157 | return 1; | |
7158 | } | |
7159 | ||
7160 | static int | |
e3bb37b5 | 7161 | check_long_reg (void) |
29b0f896 AM |
7162 | { |
7163 | int op; | |
7164 | ||
7165 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7166 | /* Skip non-register operands. */ |
bab6aec1 | 7167 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7168 | continue; |
29b0f896 AM |
7169 | /* Reject eight bit registers, except where the template requires |
7170 | them. (eg. movzb) */ | |
dc821c5f | 7171 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7172 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7173 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7174 | && (i.tm.operand_types[op].bitfield.word |
7175 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7176 | { |
a540244d L |
7177 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7178 | register_prefix, | |
29b0f896 AM |
7179 | i.op[op].regs->reg_name, |
7180 | i.tm.name, | |
7181 | i.suffix); | |
7182 | return 0; | |
7183 | } | |
be4c5e58 L |
7184 | /* Error if the e prefix on a general reg is missing. */ |
7185 | else if (i.types[op].bitfield.word | |
bab6aec1 | 7186 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7187 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7188 | && i.tm.operand_types[op].bitfield.dword) |
29b0f896 | 7189 | { |
be4c5e58 L |
7190 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7191 | register_prefix, i.op[op].regs->reg_name, | |
7192 | i.suffix); | |
7193 | return 0; | |
252b5132 | 7194 | } |
e4630f71 | 7195 | /* Warn if the r prefix on a general reg is present. */ |
dc821c5f | 7196 | else if (i.types[op].bitfield.qword |
bab6aec1 | 7197 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7198 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7199 | && i.tm.operand_types[op].bitfield.dword) |
252b5132 | 7200 | { |
34828aad | 7201 | if (intel_syntax |
65fca059 | 7202 | && i.tm.opcode_modifier.toqword |
3528c362 | 7203 | && i.types[0].bitfield.class != RegSIMD) |
34828aad | 7204 | { |
ca61edf2 | 7205 | /* Convert to QWORD. We want REX byte. */ |
34828aad L |
7206 | i.suffix = QWORD_MNEM_SUFFIX; |
7207 | } | |
7208 | else | |
7209 | { | |
2b5d6a91 | 7210 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
34828aad L |
7211 | register_prefix, i.op[op].regs->reg_name, |
7212 | i.suffix); | |
7213 | return 0; | |
7214 | } | |
29b0f896 AM |
7215 | } |
7216 | return 1; | |
7217 | } | |
252b5132 | 7218 | |
29b0f896 | 7219 | static int |
e3bb37b5 | 7220 | check_qword_reg (void) |
29b0f896 AM |
7221 | { |
7222 | int op; | |
252b5132 | 7223 | |
29b0f896 | 7224 | for (op = i.operands; --op >= 0; ) |
dc821c5f | 7225 | /* Skip non-register operands. */ |
bab6aec1 | 7226 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7227 | continue; |
29b0f896 AM |
7228 | /* Reject eight bit registers, except where the template requires |
7229 | them. (eg. movzb) */ | |
dc821c5f | 7230 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7231 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7232 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7233 | && (i.tm.operand_types[op].bitfield.word |
7234 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7235 | { |
a540244d L |
7236 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7237 | register_prefix, | |
29b0f896 AM |
7238 | i.op[op].regs->reg_name, |
7239 | i.tm.name, | |
7240 | i.suffix); | |
7241 | return 0; | |
7242 | } | |
e4630f71 | 7243 | /* Warn if the r prefix on a general reg is missing. */ |
dc821c5f JB |
7244 | else if ((i.types[op].bitfield.word |
7245 | || i.types[op].bitfield.dword) | |
bab6aec1 | 7246 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7247 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7248 | && i.tm.operand_types[op].bitfield.qword) |
29b0f896 AM |
7249 | { |
7250 | /* Prohibit these changes in the 64bit mode, since the | |
7251 | lowering is more complicated. */ | |
34828aad | 7252 | if (intel_syntax |
ca61edf2 | 7253 | && i.tm.opcode_modifier.todword |
3528c362 | 7254 | && i.types[0].bitfield.class != RegSIMD) |
34828aad | 7255 | { |
ca61edf2 | 7256 | /* Convert to DWORD. We don't want REX byte. */ |
34828aad L |
7257 | i.suffix = LONG_MNEM_SUFFIX; |
7258 | } | |
7259 | else | |
7260 | { | |
2b5d6a91 | 7261 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
34828aad L |
7262 | register_prefix, i.op[op].regs->reg_name, |
7263 | i.suffix); | |
7264 | return 0; | |
7265 | } | |
252b5132 | 7266 | } |
29b0f896 AM |
7267 | return 1; |
7268 | } | |
252b5132 | 7269 | |
29b0f896 | 7270 | static int |
e3bb37b5 | 7271 | check_word_reg (void) |
29b0f896 AM |
7272 | { |
7273 | int op; | |
7274 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7275 | /* Skip non-register operands. */ |
bab6aec1 | 7276 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7277 | continue; |
29b0f896 AM |
7278 | /* Reject eight bit registers, except where the template requires |
7279 | them. (eg. movzb) */ | |
dc821c5f | 7280 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7281 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7282 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7283 | && (i.tm.operand_types[op].bitfield.word |
7284 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7285 | { |
a540244d L |
7286 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7287 | register_prefix, | |
29b0f896 AM |
7288 | i.op[op].regs->reg_name, |
7289 | i.tm.name, | |
7290 | i.suffix); | |
7291 | return 0; | |
7292 | } | |
9706160a JB |
7293 | /* Error if the e or r prefix on a general reg is present. */ |
7294 | else if ((i.types[op].bitfield.dword | |
dc821c5f | 7295 | || i.types[op].bitfield.qword) |
bab6aec1 | 7296 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7297 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7298 | && i.tm.operand_types[op].bitfield.word) |
252b5132 | 7299 | { |
9706160a JB |
7300 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7301 | register_prefix, i.op[op].regs->reg_name, | |
7302 | i.suffix); | |
7303 | return 0; | |
29b0f896 AM |
7304 | } |
7305 | return 1; | |
7306 | } | |
252b5132 | 7307 | |
29b0f896 | 7308 | static int |
40fb9820 | 7309 | update_imm (unsigned int j) |
29b0f896 | 7310 | { |
bc0844ae | 7311 | i386_operand_type overlap = i.types[j]; |
40fb9820 L |
7312 | if ((overlap.bitfield.imm8 |
7313 | || overlap.bitfield.imm8s | |
7314 | || overlap.bitfield.imm16 | |
7315 | || overlap.bitfield.imm32 | |
7316 | || overlap.bitfield.imm32s | |
7317 | || overlap.bitfield.imm64) | |
0dfbf9d7 L |
7318 | && !operand_type_equal (&overlap, &imm8) |
7319 | && !operand_type_equal (&overlap, &imm8s) | |
7320 | && !operand_type_equal (&overlap, &imm16) | |
7321 | && !operand_type_equal (&overlap, &imm32) | |
7322 | && !operand_type_equal (&overlap, &imm32s) | |
7323 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 AM |
7324 | { |
7325 | if (i.suffix) | |
7326 | { | |
40fb9820 L |
7327 | i386_operand_type temp; |
7328 | ||
0dfbf9d7 | 7329 | operand_type_set (&temp, 0); |
7ab9ffdd | 7330 | if (i.suffix == BYTE_MNEM_SUFFIX) |
40fb9820 L |
7331 | { |
7332 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
7333 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
7334 | } | |
7335 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
7336 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
7337 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
7338 | { | |
7339 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
7340 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
7341 | } | |
7342 | else | |
7343 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
7344 | overlap = temp; | |
29b0f896 | 7345 | } |
0dfbf9d7 L |
7346 | else if (operand_type_equal (&overlap, &imm16_32_32s) |
7347 | || operand_type_equal (&overlap, &imm16_32) | |
7348 | || operand_type_equal (&overlap, &imm16_32s)) | |
29b0f896 | 7349 | { |
40fb9820 | 7350 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
65da13b5 | 7351 | overlap = imm16; |
40fb9820 | 7352 | else |
65da13b5 | 7353 | overlap = imm32s; |
29b0f896 | 7354 | } |
0dfbf9d7 L |
7355 | if (!operand_type_equal (&overlap, &imm8) |
7356 | && !operand_type_equal (&overlap, &imm8s) | |
7357 | && !operand_type_equal (&overlap, &imm16) | |
7358 | && !operand_type_equal (&overlap, &imm32) | |
7359 | && !operand_type_equal (&overlap, &imm32s) | |
7360 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 | 7361 | { |
4eed87de AM |
7362 | as_bad (_("no instruction mnemonic suffix given; " |
7363 | "can't determine immediate size")); | |
29b0f896 AM |
7364 | return 0; |
7365 | } | |
7366 | } | |
40fb9820 | 7367 | i.types[j] = overlap; |
29b0f896 | 7368 | |
40fb9820 L |
7369 | return 1; |
7370 | } | |
7371 | ||
7372 | static int | |
7373 | finalize_imm (void) | |
7374 | { | |
bc0844ae | 7375 | unsigned int j, n; |
29b0f896 | 7376 | |
bc0844ae L |
7377 | /* Update the first 2 immediate operands. */ |
7378 | n = i.operands > 2 ? 2 : i.operands; | |
7379 | if (n) | |
7380 | { | |
7381 | for (j = 0; j < n; j++) | |
7382 | if (update_imm (j) == 0) | |
7383 | return 0; | |
40fb9820 | 7384 | |
bc0844ae L |
7385 | /* The 3rd operand can't be immediate operand. */ |
7386 | gas_assert (operand_type_check (i.types[2], imm) == 0); | |
7387 | } | |
29b0f896 AM |
7388 | |
7389 | return 1; | |
7390 | } | |
7391 | ||
7392 | static int | |
e3bb37b5 | 7393 | process_operands (void) |
29b0f896 AM |
7394 | { |
7395 | /* Default segment register this instruction will use for memory | |
7396 | accesses. 0 means unknown. This is only for optimizing out | |
7397 | unnecessary segment overrides. */ | |
7398 | const seg_entry *default_seg = 0; | |
7399 | ||
2426c15f | 7400 | if (i.tm.opcode_modifier.sse2avx && i.tm.opcode_modifier.vexvvvv) |
29b0f896 | 7401 | { |
91d6fa6a NC |
7402 | unsigned int dupl = i.operands; |
7403 | unsigned int dest = dupl - 1; | |
9fcfb3d7 L |
7404 | unsigned int j; |
7405 | ||
c0f3af97 | 7406 | /* The destination must be an xmm register. */ |
9c2799c2 | 7407 | gas_assert (i.reg_operands |
91d6fa6a | 7408 | && MAX_OPERANDS > dupl |
7ab9ffdd | 7409 | && operand_type_equal (&i.types[dest], ®xmm)); |
c0f3af97 | 7410 | |
75e5731b | 7411 | if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7412 | && i.tm.operand_types[0].bitfield.xmmword) |
e2ec9d29 | 7413 | { |
8cd7925b | 7414 | if (i.tm.opcode_modifier.vexsources == VEX3SOURCES) |
c0f3af97 L |
7415 | { |
7416 | /* Keep xmm0 for instructions with VEX prefix and 3 | |
7417 | sources. */ | |
75e5731b | 7418 | i.tm.operand_types[0].bitfield.instance = InstanceNone; |
3528c362 | 7419 | i.tm.operand_types[0].bitfield.class = RegSIMD; |
c0f3af97 L |
7420 | goto duplicate; |
7421 | } | |
e2ec9d29 | 7422 | else |
c0f3af97 L |
7423 | { |
7424 | /* We remove the first xmm0 and keep the number of | |
7425 | operands unchanged, which in fact duplicates the | |
7426 | destination. */ | |
7427 | for (j = 1; j < i.operands; j++) | |
7428 | { | |
7429 | i.op[j - 1] = i.op[j]; | |
7430 | i.types[j - 1] = i.types[j]; | |
7431 | i.tm.operand_types[j - 1] = i.tm.operand_types[j]; | |
8dc0818e | 7432 | i.flags[j - 1] = i.flags[j]; |
c0f3af97 L |
7433 | } |
7434 | } | |
7435 | } | |
7436 | else if (i.tm.opcode_modifier.implicit1stxmm0) | |
7ab9ffdd | 7437 | { |
91d6fa6a | 7438 | gas_assert ((MAX_OPERANDS - 1) > dupl |
8cd7925b L |
7439 | && (i.tm.opcode_modifier.vexsources |
7440 | == VEX3SOURCES)); | |
c0f3af97 L |
7441 | |
7442 | /* Add the implicit xmm0 for instructions with VEX prefix | |
7443 | and 3 sources. */ | |
7444 | for (j = i.operands; j > 0; j--) | |
7445 | { | |
7446 | i.op[j] = i.op[j - 1]; | |
7447 | i.types[j] = i.types[j - 1]; | |
7448 | i.tm.operand_types[j] = i.tm.operand_types[j - 1]; | |
8dc0818e | 7449 | i.flags[j] = i.flags[j - 1]; |
c0f3af97 L |
7450 | } |
7451 | i.op[0].regs | |
7452 | = (const reg_entry *) hash_find (reg_hash, "xmm0"); | |
7ab9ffdd | 7453 | i.types[0] = regxmm; |
c0f3af97 L |
7454 | i.tm.operand_types[0] = regxmm; |
7455 | ||
7456 | i.operands += 2; | |
7457 | i.reg_operands += 2; | |
7458 | i.tm.operands += 2; | |
7459 | ||
91d6fa6a | 7460 | dupl++; |
c0f3af97 | 7461 | dest++; |
91d6fa6a NC |
7462 | i.op[dupl] = i.op[dest]; |
7463 | i.types[dupl] = i.types[dest]; | |
7464 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7465 | i.flags[dupl] = i.flags[dest]; |
e2ec9d29 | 7466 | } |
c0f3af97 L |
7467 | else |
7468 | { | |
dc1e8a47 | 7469 | duplicate: |
c0f3af97 L |
7470 | i.operands++; |
7471 | i.reg_operands++; | |
7472 | i.tm.operands++; | |
7473 | ||
91d6fa6a NC |
7474 | i.op[dupl] = i.op[dest]; |
7475 | i.types[dupl] = i.types[dest]; | |
7476 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7477 | i.flags[dupl] = i.flags[dest]; |
c0f3af97 L |
7478 | } |
7479 | ||
7480 | if (i.tm.opcode_modifier.immext) | |
7481 | process_immext (); | |
7482 | } | |
75e5731b | 7483 | else if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7484 | && i.tm.operand_types[0].bitfield.xmmword) |
c0f3af97 L |
7485 | { |
7486 | unsigned int j; | |
7487 | ||
9fcfb3d7 L |
7488 | for (j = 1; j < i.operands; j++) |
7489 | { | |
7490 | i.op[j - 1] = i.op[j]; | |
7491 | i.types[j - 1] = i.types[j]; | |
7492 | ||
7493 | /* We need to adjust fields in i.tm since they are used by | |
7494 | build_modrm_byte. */ | |
7495 | i.tm.operand_types [j - 1] = i.tm.operand_types [j]; | |
8dc0818e JB |
7496 | |
7497 | i.flags[j - 1] = i.flags[j]; | |
9fcfb3d7 L |
7498 | } |
7499 | ||
e2ec9d29 L |
7500 | i.operands--; |
7501 | i.reg_operands--; | |
e2ec9d29 L |
7502 | i.tm.operands--; |
7503 | } | |
920d2ddc IT |
7504 | else if (i.tm.opcode_modifier.implicitquadgroup) |
7505 | { | |
a477a8c4 JB |
7506 | unsigned int regnum, first_reg_in_group, last_reg_in_group; |
7507 | ||
920d2ddc | 7508 | /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */ |
3528c362 | 7509 | gas_assert (i.operands >= 2 && i.types[1].bitfield.class == RegSIMD); |
a477a8c4 JB |
7510 | regnum = register_number (i.op[1].regs); |
7511 | first_reg_in_group = regnum & ~3; | |
7512 | last_reg_in_group = first_reg_in_group + 3; | |
7513 | if (regnum != first_reg_in_group) | |
7514 | as_warn (_("source register `%s%s' implicitly denotes" | |
7515 | " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"), | |
7516 | register_prefix, i.op[1].regs->reg_name, | |
7517 | register_prefix, i.op[1].regs->reg_name, first_reg_in_group, | |
7518 | register_prefix, i.op[1].regs->reg_name, last_reg_in_group, | |
7519 | i.tm.name); | |
7520 | } | |
e2ec9d29 L |
7521 | else if (i.tm.opcode_modifier.regkludge) |
7522 | { | |
7523 | /* The imul $imm, %reg instruction is converted into | |
7524 | imul $imm, %reg, %reg, and the clr %reg instruction | |
7525 | is converted into xor %reg, %reg. */ | |
7526 | ||
7527 | unsigned int first_reg_op; | |
7528 | ||
7529 | if (operand_type_check (i.types[0], reg)) | |
7530 | first_reg_op = 0; | |
7531 | else | |
7532 | first_reg_op = 1; | |
7533 | /* Pretend we saw the extra register operand. */ | |
9c2799c2 | 7534 | gas_assert (i.reg_operands == 1 |
7ab9ffdd | 7535 | && i.op[first_reg_op + 1].regs == 0); |
e2ec9d29 L |
7536 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; |
7537 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
7538 | i.operands++; | |
7539 | i.reg_operands++; | |
29b0f896 AM |
7540 | } |
7541 | ||
85b80b0f | 7542 | if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
7543 | { |
7544 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
7545 | must be put into the modrm byte). Now, we make the modrm and |
7546 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
7547 | |
7548 | default_seg = build_modrm_byte (); | |
7549 | } | |
00cee14f | 7550 | else if (i.types[0].bitfield.class == SReg) |
85b80b0f JB |
7551 | { |
7552 | if (flag_code != CODE_64BIT | |
7553 | ? i.tm.base_opcode == POP_SEG_SHORT | |
7554 | && i.op[0].regs->reg_num == 1 | |
7555 | : (i.tm.base_opcode | 1) == POP_SEG386_SHORT | |
7556 | && i.op[0].regs->reg_num < 4) | |
7557 | { | |
7558 | as_bad (_("you can't `%s %s%s'"), | |
7559 | i.tm.name, register_prefix, i.op[0].regs->reg_name); | |
7560 | return 0; | |
7561 | } | |
7562 | if ( i.op[0].regs->reg_num > 3 && i.tm.opcode_length == 1 ) | |
7563 | { | |
7564 | i.tm.base_opcode ^= POP_SEG_SHORT ^ POP_SEG386_SHORT; | |
7565 | i.tm.opcode_length = 2; | |
7566 | } | |
7567 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); | |
7568 | } | |
8a2ed489 | 7569 | else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32) |
29b0f896 AM |
7570 | { |
7571 | default_seg = &ds; | |
7572 | } | |
40fb9820 | 7573 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
7574 | { |
7575 | /* For the string instructions that allow a segment override | |
7576 | on one of their operands, the default segment is ds. */ | |
7577 | default_seg = &ds; | |
7578 | } | |
50128d0c | 7579 | else if (i.short_form) |
85b80b0f JB |
7580 | { |
7581 | /* The register or float register operand is in operand | |
7582 | 0 or 1. */ | |
bab6aec1 | 7583 | unsigned int op = i.tm.operand_types[0].bitfield.class != Reg; |
85b80b0f JB |
7584 | |
7585 | /* Register goes in low 3 bits of opcode. */ | |
7586 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
7587 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
7588 | i.rex |= REX_B; | |
7589 | if (!quiet_warnings && i.tm.opcode_modifier.ugh) | |
7590 | { | |
7591 | /* Warn about some common errors, but press on regardless. | |
7592 | The first case can be generated by gcc (<= 2.8.1). */ | |
7593 | if (i.operands == 2) | |
7594 | { | |
7595 | /* Reversed arguments on faddp, fsubp, etc. */ | |
7596 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, | |
7597 | register_prefix, i.op[!intel_syntax].regs->reg_name, | |
7598 | register_prefix, i.op[intel_syntax].regs->reg_name); | |
7599 | } | |
7600 | else | |
7601 | { | |
7602 | /* Extraneous `l' suffix on fp insn. */ | |
7603 | as_warn (_("translating to `%s %s%s'"), i.tm.name, | |
7604 | register_prefix, i.op[0].regs->reg_name); | |
7605 | } | |
7606 | } | |
7607 | } | |
29b0f896 | 7608 | |
514a8bb0 | 7609 | if ((i.seg[0] || i.prefix[SEG_PREFIX]) |
514a8bb0 JB |
7610 | && i.tm.base_opcode == 0x8d /* lea */ |
7611 | && !is_any_vex_encoding(&i.tm)) | |
92334ad2 JB |
7612 | { |
7613 | if (!quiet_warnings) | |
7614 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); | |
7615 | if (optimize) | |
7616 | { | |
7617 | i.seg[0] = NULL; | |
7618 | i.prefix[SEG_PREFIX] = 0; | |
7619 | } | |
7620 | } | |
52271982 AM |
7621 | |
7622 | /* If a segment was explicitly specified, and the specified segment | |
b6773884 JB |
7623 | is neither the default nor the one already recorded from a prefix, |
7624 | use an opcode prefix to select it. If we never figured out what | |
7625 | the default segment is, then default_seg will be zero at this | |
7626 | point, and the specified segment prefix will always be used. */ | |
7627 | if (i.seg[0] | |
7628 | && i.seg[0] != default_seg | |
7629 | && i.seg[0]->seg_prefix != i.prefix[SEG_PREFIX]) | |
29b0f896 AM |
7630 | { |
7631 | if (!add_prefix (i.seg[0]->seg_prefix)) | |
7632 | return 0; | |
7633 | } | |
7634 | return 1; | |
7635 | } | |
7636 | ||
7637 | static const seg_entry * | |
e3bb37b5 | 7638 | build_modrm_byte (void) |
29b0f896 AM |
7639 | { |
7640 | const seg_entry *default_seg = 0; | |
c0f3af97 | 7641 | unsigned int source, dest; |
8cd7925b | 7642 | int vex_3_sources; |
c0f3af97 | 7643 | |
8cd7925b | 7644 | vex_3_sources = i.tm.opcode_modifier.vexsources == VEX3SOURCES; |
c0f3af97 L |
7645 | if (vex_3_sources) |
7646 | { | |
91d6fa6a | 7647 | unsigned int nds, reg_slot; |
4c2c6516 | 7648 | expressionS *exp; |
c0f3af97 | 7649 | |
6b8d3588 | 7650 | dest = i.operands - 1; |
c0f3af97 | 7651 | nds = dest - 1; |
922d8de8 | 7652 | |
a683cc34 | 7653 | /* There are 2 kinds of instructions: |
bed3d976 | 7654 | 1. 5 operands: 4 register operands or 3 register operands |
9d3bf266 | 7655 | plus 1 memory operand plus one Imm4 operand, VexXDS, and |
bed3d976 | 7656 | VexW0 or VexW1. The destination must be either XMM, YMM or |
43234a1e | 7657 | ZMM register. |
bed3d976 | 7658 | 2. 4 operands: 4 register operands or 3 register operands |
2f1bada2 | 7659 | plus 1 memory operand, with VexXDS. */ |
922d8de8 | 7660 | gas_assert ((i.reg_operands == 4 |
bed3d976 JB |
7661 | || (i.reg_operands == 3 && i.mem_operands == 1)) |
7662 | && i.tm.opcode_modifier.vexvvvv == VEXXDS | |
dcd7e323 | 7663 | && i.tm.opcode_modifier.vexw |
3528c362 | 7664 | && i.tm.operand_types[dest].bitfield.class == RegSIMD); |
a683cc34 | 7665 | |
48db9223 JB |
7666 | /* If VexW1 is set, the first non-immediate operand is the source and |
7667 | the second non-immediate one is encoded in the immediate operand. */ | |
7668 | if (i.tm.opcode_modifier.vexw == VEXW1) | |
7669 | { | |
7670 | source = i.imm_operands; | |
7671 | reg_slot = i.imm_operands + 1; | |
7672 | } | |
7673 | else | |
7674 | { | |
7675 | source = i.imm_operands + 1; | |
7676 | reg_slot = i.imm_operands; | |
7677 | } | |
7678 | ||
a683cc34 | 7679 | if (i.imm_operands == 0) |
bed3d976 JB |
7680 | { |
7681 | /* When there is no immediate operand, generate an 8bit | |
7682 | immediate operand to encode the first operand. */ | |
7683 | exp = &im_expressions[i.imm_operands++]; | |
7684 | i.op[i.operands].imms = exp; | |
7685 | i.types[i.operands] = imm8; | |
7686 | i.operands++; | |
7687 | ||
3528c362 | 7688 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
bed3d976 JB |
7689 | exp->X_op = O_constant; |
7690 | exp->X_add_number = register_number (i.op[reg_slot].regs) << 4; | |
43234a1e L |
7691 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
7692 | } | |
922d8de8 | 7693 | else |
bed3d976 | 7694 | { |
9d3bf266 JB |
7695 | gas_assert (i.imm_operands == 1); |
7696 | gas_assert (fits_in_imm4 (i.op[0].imms->X_add_number)); | |
7697 | gas_assert (!i.tm.opcode_modifier.immext); | |
a683cc34 | 7698 | |
9d3bf266 JB |
7699 | /* Turn on Imm8 again so that output_imm will generate it. */ |
7700 | i.types[0].bitfield.imm8 = 1; | |
bed3d976 | 7701 | |
3528c362 | 7702 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
9d3bf266 | 7703 | i.op[0].imms->X_add_number |
bed3d976 | 7704 | |= register_number (i.op[reg_slot].regs) << 4; |
43234a1e | 7705 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
bed3d976 | 7706 | } |
a683cc34 | 7707 | |
3528c362 | 7708 | gas_assert (i.tm.operand_types[nds].bitfield.class == RegSIMD); |
dae39acc | 7709 | i.vex.register_specifier = i.op[nds].regs; |
c0f3af97 L |
7710 | } |
7711 | else | |
7712 | source = dest = 0; | |
29b0f896 AM |
7713 | |
7714 | /* i.reg_operands MUST be the number of real register operands; | |
c0f3af97 L |
7715 | implicit registers do not count. If there are 3 register |
7716 | operands, it must be a instruction with VexNDS. For a | |
7717 | instruction with VexNDD, the destination register is encoded | |
7718 | in VEX prefix. If there are 4 register operands, it must be | |
7719 | a instruction with VEX prefix and 3 sources. */ | |
7ab9ffdd L |
7720 | if (i.mem_operands == 0 |
7721 | && ((i.reg_operands == 2 | |
2426c15f | 7722 | && i.tm.opcode_modifier.vexvvvv <= VEXXDS) |
7ab9ffdd | 7723 | || (i.reg_operands == 3 |
2426c15f | 7724 | && i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd | 7725 | || (i.reg_operands == 4 && vex_3_sources))) |
29b0f896 | 7726 | { |
cab737b9 L |
7727 | switch (i.operands) |
7728 | { | |
7729 | case 2: | |
7730 | source = 0; | |
7731 | break; | |
7732 | case 3: | |
c81128dc L |
7733 | /* When there are 3 operands, one of them may be immediate, |
7734 | which may be the first or the last operand. Otherwise, | |
c0f3af97 L |
7735 | the first operand must be shift count register (cl) or it |
7736 | is an instruction with VexNDS. */ | |
9c2799c2 | 7737 | gas_assert (i.imm_operands == 1 |
7ab9ffdd | 7738 | || (i.imm_operands == 0 |
2426c15f | 7739 | && (i.tm.opcode_modifier.vexvvvv == VEXXDS |
75e5731b JB |
7740 | || (i.types[0].bitfield.instance == RegC |
7741 | && i.types[0].bitfield.byte)))); | |
40fb9820 | 7742 | if (operand_type_check (i.types[0], imm) |
75e5731b JB |
7743 | || (i.types[0].bitfield.instance == RegC |
7744 | && i.types[0].bitfield.byte)) | |
40fb9820 L |
7745 | source = 1; |
7746 | else | |
7747 | source = 0; | |
cab737b9 L |
7748 | break; |
7749 | case 4: | |
368d64cc L |
7750 | /* When there are 4 operands, the first two must be 8bit |
7751 | immediate operands. The source operand will be the 3rd | |
c0f3af97 L |
7752 | one. |
7753 | ||
7754 | For instructions with VexNDS, if the first operand | |
7755 | an imm8, the source operand is the 2nd one. If the last | |
7756 | operand is imm8, the source operand is the first one. */ | |
9c2799c2 | 7757 | gas_assert ((i.imm_operands == 2 |
7ab9ffdd L |
7758 | && i.types[0].bitfield.imm8 |
7759 | && i.types[1].bitfield.imm8) | |
2426c15f | 7760 | || (i.tm.opcode_modifier.vexvvvv == VEXXDS |
7ab9ffdd L |
7761 | && i.imm_operands == 1 |
7762 | && (i.types[0].bitfield.imm8 | |
43234a1e L |
7763 | || i.types[i.operands - 1].bitfield.imm8 |
7764 | || i.rounding))); | |
9f2670f2 L |
7765 | if (i.imm_operands == 2) |
7766 | source = 2; | |
7767 | else | |
c0f3af97 L |
7768 | { |
7769 | if (i.types[0].bitfield.imm8) | |
7770 | source = 1; | |
7771 | else | |
7772 | source = 0; | |
7773 | } | |
c0f3af97 L |
7774 | break; |
7775 | case 5: | |
e771e7c9 | 7776 | if (is_evex_encoding (&i.tm)) |
43234a1e L |
7777 | { |
7778 | /* For EVEX instructions, when there are 5 operands, the | |
7779 | first one must be immediate operand. If the second one | |
7780 | is immediate operand, the source operand is the 3th | |
7781 | one. If the last one is immediate operand, the source | |
7782 | operand is the 2nd one. */ | |
7783 | gas_assert (i.imm_operands == 2 | |
7784 | && i.tm.opcode_modifier.sae | |
7785 | && operand_type_check (i.types[0], imm)); | |
7786 | if (operand_type_check (i.types[1], imm)) | |
7787 | source = 2; | |
7788 | else if (operand_type_check (i.types[4], imm)) | |
7789 | source = 1; | |
7790 | else | |
7791 | abort (); | |
7792 | } | |
cab737b9 L |
7793 | break; |
7794 | default: | |
7795 | abort (); | |
7796 | } | |
7797 | ||
c0f3af97 L |
7798 | if (!vex_3_sources) |
7799 | { | |
7800 | dest = source + 1; | |
7801 | ||
43234a1e L |
7802 | /* RC/SAE operand could be between DEST and SRC. That happens |
7803 | when one operand is GPR and the other one is XMM/YMM/ZMM | |
7804 | register. */ | |
7805 | if (i.rounding && i.rounding->operand == (int) dest) | |
7806 | dest++; | |
7807 | ||
2426c15f | 7808 | if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
c0f3af97 | 7809 | { |
43234a1e | 7810 | /* For instructions with VexNDS, the register-only source |
c5d0745b | 7811 | operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask |
dfd69174 | 7812 | register. It is encoded in VEX prefix. */ |
f12dc422 L |
7813 | |
7814 | i386_operand_type op; | |
7815 | unsigned int vvvv; | |
7816 | ||
7817 | /* Check register-only source operand when two source | |
7818 | operands are swapped. */ | |
7819 | if (!i.tm.operand_types[source].bitfield.baseindex | |
7820 | && i.tm.operand_types[dest].bitfield.baseindex) | |
7821 | { | |
7822 | vvvv = source; | |
7823 | source = dest; | |
7824 | } | |
7825 | else | |
7826 | vvvv = dest; | |
7827 | ||
7828 | op = i.tm.operand_types[vvvv]; | |
c0f3af97 | 7829 | if ((dest + 1) >= i.operands |
bab6aec1 | 7830 | || ((op.bitfield.class != Reg |
dc821c5f | 7831 | || (!op.bitfield.dword && !op.bitfield.qword)) |
3528c362 | 7832 | && op.bitfield.class != RegSIMD |
43234a1e | 7833 | && !operand_type_equal (&op, ®mask))) |
c0f3af97 | 7834 | abort (); |
f12dc422 | 7835 | i.vex.register_specifier = i.op[vvvv].regs; |
c0f3af97 L |
7836 | dest++; |
7837 | } | |
7838 | } | |
29b0f896 AM |
7839 | |
7840 | i.rm.mode = 3; | |
dfd69174 JB |
7841 | /* One of the register operands will be encoded in the i.rm.reg |
7842 | field, the other in the combined i.rm.mode and i.rm.regmem | |
29b0f896 AM |
7843 | fields. If no form of this instruction supports a memory |
7844 | destination operand, then we assume the source operand may | |
7845 | sometimes be a memory operand and so we need to store the | |
7846 | destination in the i.rm.reg field. */ | |
dfd69174 | 7847 | if (!i.tm.opcode_modifier.regmem |
40fb9820 | 7848 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) |
29b0f896 AM |
7849 | { |
7850 | i.rm.reg = i.op[dest].regs->reg_num; | |
7851 | i.rm.regmem = i.op[source].regs->reg_num; | |
3528c362 JB |
7852 | if (i.op[dest].regs->reg_type.bitfield.class == RegMMX |
7853 | || i.op[source].regs->reg_type.bitfield.class == RegMMX) | |
b4a3a7b4 | 7854 | i.has_regmmx = TRUE; |
3528c362 JB |
7855 | else if (i.op[dest].regs->reg_type.bitfield.class == RegSIMD |
7856 | || i.op[source].regs->reg_type.bitfield.class == RegSIMD) | |
b4a3a7b4 L |
7857 | { |
7858 | if (i.types[dest].bitfield.zmmword | |
7859 | || i.types[source].bitfield.zmmword) | |
7860 | i.has_regzmm = TRUE; | |
7861 | else if (i.types[dest].bitfield.ymmword | |
7862 | || i.types[source].bitfield.ymmword) | |
7863 | i.has_regymm = TRUE; | |
7864 | else | |
7865 | i.has_regxmm = TRUE; | |
7866 | } | |
29b0f896 | 7867 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) |
161a04f6 | 7868 | i.rex |= REX_R; |
43234a1e L |
7869 | if ((i.op[dest].regs->reg_flags & RegVRex) != 0) |
7870 | i.vrex |= REX_R; | |
29b0f896 | 7871 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 7872 | i.rex |= REX_B; |
43234a1e L |
7873 | if ((i.op[source].regs->reg_flags & RegVRex) != 0) |
7874 | i.vrex |= REX_B; | |
29b0f896 AM |
7875 | } |
7876 | else | |
7877 | { | |
7878 | i.rm.reg = i.op[source].regs->reg_num; | |
7879 | i.rm.regmem = i.op[dest].regs->reg_num; | |
7880 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 7881 | i.rex |= REX_B; |
43234a1e L |
7882 | if ((i.op[dest].regs->reg_flags & RegVRex) != 0) |
7883 | i.vrex |= REX_B; | |
29b0f896 | 7884 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 7885 | i.rex |= REX_R; |
43234a1e L |
7886 | if ((i.op[source].regs->reg_flags & RegVRex) != 0) |
7887 | i.vrex |= REX_R; | |
29b0f896 | 7888 | } |
e0c7f900 | 7889 | if (flag_code != CODE_64BIT && (i.rex & REX_R)) |
c4a530c5 | 7890 | { |
4a5c67ed | 7891 | if (i.types[!i.tm.opcode_modifier.regmem].bitfield.class != RegCR) |
c4a530c5 | 7892 | abort (); |
e0c7f900 | 7893 | i.rex &= ~REX_R; |
c4a530c5 JB |
7894 | add_prefix (LOCK_PREFIX_OPCODE); |
7895 | } | |
29b0f896 AM |
7896 | } |
7897 | else | |
7898 | { /* If it's not 2 reg operands... */ | |
c0f3af97 L |
7899 | unsigned int mem; |
7900 | ||
29b0f896 AM |
7901 | if (i.mem_operands) |
7902 | { | |
7903 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 7904 | unsigned int op; |
4eed87de | 7905 | |
7ab9ffdd | 7906 | for (op = 0; op < i.operands; op++) |
8dc0818e | 7907 | if (i.flags[op] & Operand_Mem) |
7ab9ffdd | 7908 | break; |
7ab9ffdd | 7909 | gas_assert (op < i.operands); |
29b0f896 | 7910 | |
6c30d220 L |
7911 | if (i.tm.opcode_modifier.vecsib) |
7912 | { | |
e968fc9b | 7913 | if (i.index_reg->reg_num == RegIZ) |
6c30d220 L |
7914 | abort (); |
7915 | ||
7916 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
7917 | if (!i.base_reg) | |
7918 | { | |
7919 | i.sib.base = NO_BASE_REGISTER; | |
7920 | i.sib.scale = i.log2_scale_factor; | |
7921 | i.types[op].bitfield.disp8 = 0; | |
7922 | i.types[op].bitfield.disp16 = 0; | |
7923 | i.types[op].bitfield.disp64 = 0; | |
43083a50 | 7924 | if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX]) |
6c30d220 L |
7925 | { |
7926 | /* Must be 32 bit */ | |
7927 | i.types[op].bitfield.disp32 = 1; | |
7928 | i.types[op].bitfield.disp32s = 0; | |
7929 | } | |
7930 | else | |
7931 | { | |
7932 | i.types[op].bitfield.disp32 = 0; | |
7933 | i.types[op].bitfield.disp32s = 1; | |
7934 | } | |
7935 | } | |
7936 | i.sib.index = i.index_reg->reg_num; | |
7937 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
7938 | i.rex |= REX_X; | |
43234a1e L |
7939 | if ((i.index_reg->reg_flags & RegVRex) != 0) |
7940 | i.vrex |= REX_X; | |
6c30d220 L |
7941 | } |
7942 | ||
29b0f896 AM |
7943 | default_seg = &ds; |
7944 | ||
7945 | if (i.base_reg == 0) | |
7946 | { | |
7947 | i.rm.mode = 0; | |
7948 | if (!i.disp_operands) | |
9bb129e8 | 7949 | fake_zero_displacement = 1; |
29b0f896 AM |
7950 | if (i.index_reg == 0) |
7951 | { | |
73053c1f JB |
7952 | i386_operand_type newdisp; |
7953 | ||
6c30d220 | 7954 | gas_assert (!i.tm.opcode_modifier.vecsib); |
29b0f896 | 7955 | /* Operand is just <disp> */ |
20f0a1fc | 7956 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
7957 | { |
7958 | /* 64bit mode overwrites the 32bit absolute | |
7959 | addressing by RIP relative addressing and | |
7960 | absolute addressing is encoded by one of the | |
7961 | redundant SIB forms. */ | |
7962 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
7963 | i.sib.base = NO_BASE_REGISTER; | |
7964 | i.sib.index = NO_INDEX_REGISTER; | |
73053c1f | 7965 | newdisp = (!i.prefix[ADDR_PREFIX] ? disp32s : disp32); |
20f0a1fc | 7966 | } |
fc225355 L |
7967 | else if ((flag_code == CODE_16BIT) |
7968 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
7969 | { |
7970 | i.rm.regmem = NO_BASE_REGISTER_16; | |
73053c1f | 7971 | newdisp = disp16; |
20f0a1fc NC |
7972 | } |
7973 | else | |
7974 | { | |
7975 | i.rm.regmem = NO_BASE_REGISTER; | |
73053c1f | 7976 | newdisp = disp32; |
29b0f896 | 7977 | } |
73053c1f JB |
7978 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
7979 | i.types[op] = operand_type_or (i.types[op], newdisp); | |
29b0f896 | 7980 | } |
6c30d220 | 7981 | else if (!i.tm.opcode_modifier.vecsib) |
29b0f896 | 7982 | { |
6c30d220 | 7983 | /* !i.base_reg && i.index_reg */ |
e968fc9b | 7984 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
7985 | i.sib.index = NO_INDEX_REGISTER; |
7986 | else | |
7987 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
7988 | i.sib.base = NO_BASE_REGISTER; |
7989 | i.sib.scale = i.log2_scale_factor; | |
7990 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
40fb9820 L |
7991 | i.types[op].bitfield.disp8 = 0; |
7992 | i.types[op].bitfield.disp16 = 0; | |
7993 | i.types[op].bitfield.disp64 = 0; | |
43083a50 | 7994 | if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX]) |
40fb9820 L |
7995 | { |
7996 | /* Must be 32 bit */ | |
7997 | i.types[op].bitfield.disp32 = 1; | |
7998 | i.types[op].bitfield.disp32s = 0; | |
7999 | } | |
29b0f896 | 8000 | else |
40fb9820 L |
8001 | { |
8002 | i.types[op].bitfield.disp32 = 0; | |
8003 | i.types[op].bitfield.disp32s = 1; | |
8004 | } | |
29b0f896 | 8005 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8006 | i.rex |= REX_X; |
29b0f896 AM |
8007 | } |
8008 | } | |
8009 | /* RIP addressing for 64bit mode. */ | |
e968fc9b | 8010 | else if (i.base_reg->reg_num == RegIP) |
29b0f896 | 8011 | { |
6c30d220 | 8012 | gas_assert (!i.tm.opcode_modifier.vecsib); |
29b0f896 | 8013 | i.rm.regmem = NO_BASE_REGISTER; |
40fb9820 L |
8014 | i.types[op].bitfield.disp8 = 0; |
8015 | i.types[op].bitfield.disp16 = 0; | |
8016 | i.types[op].bitfield.disp32 = 0; | |
8017 | i.types[op].bitfield.disp32s = 1; | |
8018 | i.types[op].bitfield.disp64 = 0; | |
71903a11 | 8019 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
8020 | if (! i.disp_operands) |
8021 | fake_zero_displacement = 1; | |
29b0f896 | 8022 | } |
dc821c5f | 8023 | else if (i.base_reg->reg_type.bitfield.word) |
29b0f896 | 8024 | { |
6c30d220 | 8025 | gas_assert (!i.tm.opcode_modifier.vecsib); |
29b0f896 AM |
8026 | switch (i.base_reg->reg_num) |
8027 | { | |
8028 | case 3: /* (%bx) */ | |
8029 | if (i.index_reg == 0) | |
8030 | i.rm.regmem = 7; | |
8031 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
8032 | i.rm.regmem = i.index_reg->reg_num - 6; | |
8033 | break; | |
8034 | case 5: /* (%bp) */ | |
8035 | default_seg = &ss; | |
8036 | if (i.index_reg == 0) | |
8037 | { | |
8038 | i.rm.regmem = 6; | |
40fb9820 | 8039 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
8040 | { |
8041 | /* fake (%bp) into 0(%bp) */ | |
b5014f7a | 8042 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 8043 | fake_zero_displacement = 1; |
29b0f896 AM |
8044 | } |
8045 | } | |
8046 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
8047 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
8048 | break; | |
8049 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
8050 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
8051 | } | |
8052 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
8053 | } | |
8054 | else /* i.base_reg and 32/64 bit mode */ | |
8055 | { | |
8056 | if (flag_code == CODE_64BIT | |
40fb9820 L |
8057 | && operand_type_check (i.types[op], disp)) |
8058 | { | |
73053c1f JB |
8059 | i.types[op].bitfield.disp16 = 0; |
8060 | i.types[op].bitfield.disp64 = 0; | |
40fb9820 | 8061 | if (i.prefix[ADDR_PREFIX] == 0) |
73053c1f JB |
8062 | { |
8063 | i.types[op].bitfield.disp32 = 0; | |
8064 | i.types[op].bitfield.disp32s = 1; | |
8065 | } | |
40fb9820 | 8066 | else |
73053c1f JB |
8067 | { |
8068 | i.types[op].bitfield.disp32 = 1; | |
8069 | i.types[op].bitfield.disp32s = 0; | |
8070 | } | |
40fb9820 | 8071 | } |
20f0a1fc | 8072 | |
6c30d220 L |
8073 | if (!i.tm.opcode_modifier.vecsib) |
8074 | i.rm.regmem = i.base_reg->reg_num; | |
29b0f896 | 8075 | if ((i.base_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8076 | i.rex |= REX_B; |
29b0f896 AM |
8077 | i.sib.base = i.base_reg->reg_num; |
8078 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
8079 | complications. */ | |
848930b2 JB |
8080 | if (!(i.base_reg->reg_flags & RegRex) |
8081 | && (i.base_reg->reg_num == EBP_REG_NUM | |
8082 | || i.base_reg->reg_num == ESP_REG_NUM)) | |
29b0f896 | 8083 | default_seg = &ss; |
848930b2 | 8084 | if (i.base_reg->reg_num == 5 && i.disp_operands == 0) |
29b0f896 | 8085 | { |
848930b2 | 8086 | fake_zero_displacement = 1; |
b5014f7a | 8087 | i.types[op].bitfield.disp8 = 1; |
29b0f896 AM |
8088 | } |
8089 | i.sib.scale = i.log2_scale_factor; | |
8090 | if (i.index_reg == 0) | |
8091 | { | |
6c30d220 | 8092 | gas_assert (!i.tm.opcode_modifier.vecsib); |
29b0f896 AM |
8093 | /* <disp>(%esp) becomes two byte modrm with no index |
8094 | register. We've already stored the code for esp | |
8095 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
8096 | Any base register besides %esp will not use the | |
8097 | extra modrm byte. */ | |
8098 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 | 8099 | } |
6c30d220 | 8100 | else if (!i.tm.opcode_modifier.vecsib) |
29b0f896 | 8101 | { |
e968fc9b | 8102 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
8103 | i.sib.index = NO_INDEX_REGISTER; |
8104 | else | |
8105 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
8106 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
8107 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 8108 | i.rex |= REX_X; |
29b0f896 | 8109 | } |
67a4f2b7 AO |
8110 | |
8111 | if (i.disp_operands | |
8112 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
8113 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
8114 | i.rm.mode = 0; | |
8115 | else | |
a501d77e L |
8116 | { |
8117 | if (!fake_zero_displacement | |
8118 | && !i.disp_operands | |
8119 | && i.disp_encoding) | |
8120 | { | |
8121 | fake_zero_displacement = 1; | |
8122 | if (i.disp_encoding == disp_encoding_8bit) | |
8123 | i.types[op].bitfield.disp8 = 1; | |
8124 | else | |
8125 | i.types[op].bitfield.disp32 = 1; | |
8126 | } | |
8127 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
8128 | } | |
29b0f896 | 8129 | } |
252b5132 | 8130 | |
29b0f896 AM |
8131 | if (fake_zero_displacement) |
8132 | { | |
8133 | /* Fakes a zero displacement assuming that i.types[op] | |
8134 | holds the correct displacement size. */ | |
8135 | expressionS *exp; | |
8136 | ||
9c2799c2 | 8137 | gas_assert (i.op[op].disps == 0); |
29b0f896 AM |
8138 | exp = &disp_expressions[i.disp_operands++]; |
8139 | i.op[op].disps = exp; | |
8140 | exp->X_op = O_constant; | |
8141 | exp->X_add_number = 0; | |
8142 | exp->X_add_symbol = (symbolS *) 0; | |
8143 | exp->X_op_symbol = (symbolS *) 0; | |
8144 | } | |
c0f3af97 L |
8145 | |
8146 | mem = op; | |
29b0f896 | 8147 | } |
c0f3af97 L |
8148 | else |
8149 | mem = ~0; | |
252b5132 | 8150 | |
8c43a48b | 8151 | if (i.tm.opcode_modifier.vexsources == XOP2SOURCES) |
5dd85c99 SP |
8152 | { |
8153 | if (operand_type_check (i.types[0], imm)) | |
8154 | i.vex.register_specifier = NULL; | |
8155 | else | |
8156 | { | |
8157 | /* VEX.vvvv encodes one of the sources when the first | |
8158 | operand is not an immediate. */ | |
1ef99a7b | 8159 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8160 | i.vex.register_specifier = i.op[0].regs; |
8161 | else | |
8162 | i.vex.register_specifier = i.op[1].regs; | |
8163 | } | |
8164 | ||
8165 | /* Destination is a XMM register encoded in the ModRM.reg | |
8166 | and VEX.R bit. */ | |
8167 | i.rm.reg = i.op[2].regs->reg_num; | |
8168 | if ((i.op[2].regs->reg_flags & RegRex) != 0) | |
8169 | i.rex |= REX_R; | |
8170 | ||
8171 | /* ModRM.rm and VEX.B encodes the other source. */ | |
8172 | if (!i.mem_operands) | |
8173 | { | |
8174 | i.rm.mode = 3; | |
8175 | ||
1ef99a7b | 8176 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8177 | i.rm.regmem = i.op[1].regs->reg_num; |
8178 | else | |
8179 | i.rm.regmem = i.op[0].regs->reg_num; | |
8180 | ||
8181 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8182 | i.rex |= REX_B; | |
8183 | } | |
8184 | } | |
2426c15f | 8185 | else if (i.tm.opcode_modifier.vexvvvv == VEXLWP) |
f88c9eb0 SP |
8186 | { |
8187 | i.vex.register_specifier = i.op[2].regs; | |
8188 | if (!i.mem_operands) | |
8189 | { | |
8190 | i.rm.mode = 3; | |
8191 | i.rm.regmem = i.op[1].regs->reg_num; | |
8192 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8193 | i.rex |= REX_B; | |
8194 | } | |
8195 | } | |
29b0f896 AM |
8196 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
8197 | (if any) based on i.tm.extension_opcode. Again, we must be | |
8198 | careful to make sure that segment/control/debug/test/MMX | |
8199 | registers are coded into the i.rm.reg field. */ | |
f88c9eb0 | 8200 | else if (i.reg_operands) |
29b0f896 | 8201 | { |
99018f42 | 8202 | unsigned int op; |
7ab9ffdd L |
8203 | unsigned int vex_reg = ~0; |
8204 | ||
8205 | for (op = 0; op < i.operands; op++) | |
b4a3a7b4 | 8206 | { |
bab6aec1 | 8207 | if (i.types[op].bitfield.class == Reg |
f74a6307 JB |
8208 | || i.types[op].bitfield.class == RegBND |
8209 | || i.types[op].bitfield.class == RegMask | |
00cee14f | 8210 | || i.types[op].bitfield.class == SReg |
4a5c67ed JB |
8211 | || i.types[op].bitfield.class == RegCR |
8212 | || i.types[op].bitfield.class == RegDR | |
8213 | || i.types[op].bitfield.class == RegTR) | |
b4a3a7b4 | 8214 | break; |
3528c362 | 8215 | if (i.types[op].bitfield.class == RegSIMD) |
b4a3a7b4 L |
8216 | { |
8217 | if (i.types[op].bitfield.zmmword) | |
8218 | i.has_regzmm = TRUE; | |
8219 | else if (i.types[op].bitfield.ymmword) | |
8220 | i.has_regymm = TRUE; | |
8221 | else | |
8222 | i.has_regxmm = TRUE; | |
8223 | break; | |
8224 | } | |
3528c362 | 8225 | if (i.types[op].bitfield.class == RegMMX) |
b4a3a7b4 L |
8226 | { |
8227 | i.has_regmmx = TRUE; | |
8228 | break; | |
8229 | } | |
8230 | } | |
c0209578 | 8231 | |
7ab9ffdd L |
8232 | if (vex_3_sources) |
8233 | op = dest; | |
2426c15f | 8234 | else if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd L |
8235 | { |
8236 | /* For instructions with VexNDS, the register-only | |
8237 | source operand is encoded in VEX prefix. */ | |
8238 | gas_assert (mem != (unsigned int) ~0); | |
c0f3af97 | 8239 | |
7ab9ffdd | 8240 | if (op > mem) |
c0f3af97 | 8241 | { |
7ab9ffdd L |
8242 | vex_reg = op++; |
8243 | gas_assert (op < i.operands); | |
c0f3af97 L |
8244 | } |
8245 | else | |
c0f3af97 | 8246 | { |
f12dc422 L |
8247 | /* Check register-only source operand when two source |
8248 | operands are swapped. */ | |
8249 | if (!i.tm.operand_types[op].bitfield.baseindex | |
8250 | && i.tm.operand_types[op + 1].bitfield.baseindex) | |
8251 | { | |
8252 | vex_reg = op; | |
8253 | op += 2; | |
8254 | gas_assert (mem == (vex_reg + 1) | |
8255 | && op < i.operands); | |
8256 | } | |
8257 | else | |
8258 | { | |
8259 | vex_reg = op + 1; | |
8260 | gas_assert (vex_reg < i.operands); | |
8261 | } | |
c0f3af97 | 8262 | } |
7ab9ffdd | 8263 | } |
2426c15f | 8264 | else if (i.tm.opcode_modifier.vexvvvv == VEXNDD) |
7ab9ffdd | 8265 | { |
f12dc422 | 8266 | /* For instructions with VexNDD, the register destination |
7ab9ffdd | 8267 | is encoded in VEX prefix. */ |
f12dc422 L |
8268 | if (i.mem_operands == 0) |
8269 | { | |
8270 | /* There is no memory operand. */ | |
8271 | gas_assert ((op + 2) == i.operands); | |
8272 | vex_reg = op + 1; | |
8273 | } | |
8274 | else | |
8d63c93e | 8275 | { |
ed438a93 JB |
8276 | /* There are only 2 non-immediate operands. */ |
8277 | gas_assert (op < i.imm_operands + 2 | |
8278 | && i.operands == i.imm_operands + 2); | |
8279 | vex_reg = i.imm_operands + 1; | |
f12dc422 | 8280 | } |
7ab9ffdd L |
8281 | } |
8282 | else | |
8283 | gas_assert (op < i.operands); | |
99018f42 | 8284 | |
7ab9ffdd L |
8285 | if (vex_reg != (unsigned int) ~0) |
8286 | { | |
f12dc422 | 8287 | i386_operand_type *type = &i.tm.operand_types[vex_reg]; |
7ab9ffdd | 8288 | |
bab6aec1 | 8289 | if ((type->bitfield.class != Reg |
dc821c5f | 8290 | || (!type->bitfield.dword && !type->bitfield.qword)) |
3528c362 | 8291 | && type->bitfield.class != RegSIMD |
43234a1e | 8292 | && !operand_type_equal (type, ®mask)) |
7ab9ffdd | 8293 | abort (); |
f88c9eb0 | 8294 | |
7ab9ffdd L |
8295 | i.vex.register_specifier = i.op[vex_reg].regs; |
8296 | } | |
8297 | ||
1b9f0c97 L |
8298 | /* Don't set OP operand twice. */ |
8299 | if (vex_reg != op) | |
7ab9ffdd | 8300 | { |
1b9f0c97 L |
8301 | /* If there is an extension opcode to put here, the |
8302 | register number must be put into the regmem field. */ | |
8303 | if (i.tm.extension_opcode != None) | |
8304 | { | |
8305 | i.rm.regmem = i.op[op].regs->reg_num; | |
8306 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
8307 | i.rex |= REX_B; | |
43234a1e L |
8308 | if ((i.op[op].regs->reg_flags & RegVRex) != 0) |
8309 | i.vrex |= REX_B; | |
1b9f0c97 L |
8310 | } |
8311 | else | |
8312 | { | |
8313 | i.rm.reg = i.op[op].regs->reg_num; | |
8314 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
8315 | i.rex |= REX_R; | |
43234a1e L |
8316 | if ((i.op[op].regs->reg_flags & RegVRex) != 0) |
8317 | i.vrex |= REX_R; | |
1b9f0c97 | 8318 | } |
7ab9ffdd | 8319 | } |
252b5132 | 8320 | |
29b0f896 AM |
8321 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
8322 | must set it to 3 to indicate this is a register operand | |
8323 | in the regmem field. */ | |
8324 | if (!i.mem_operands) | |
8325 | i.rm.mode = 3; | |
8326 | } | |
252b5132 | 8327 | |
29b0f896 | 8328 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
c1e679ec | 8329 | if (i.tm.extension_opcode != None) |
29b0f896 AM |
8330 | i.rm.reg = i.tm.extension_opcode; |
8331 | } | |
8332 | return default_seg; | |
8333 | } | |
252b5132 | 8334 | |
376cd056 JB |
8335 | static unsigned int |
8336 | flip_code16 (unsigned int code16) | |
8337 | { | |
8338 | gas_assert (i.tm.operands == 1); | |
8339 | ||
8340 | return !(i.prefix[REX_PREFIX] & REX_W) | |
8341 | && (code16 ? i.tm.operand_types[0].bitfield.disp32 | |
8342 | || i.tm.operand_types[0].bitfield.disp32s | |
8343 | : i.tm.operand_types[0].bitfield.disp16) | |
8344 | ? CODE16 : 0; | |
8345 | } | |
8346 | ||
29b0f896 | 8347 | static void |
e3bb37b5 | 8348 | output_branch (void) |
29b0f896 AM |
8349 | { |
8350 | char *p; | |
f8a5c266 | 8351 | int size; |
29b0f896 AM |
8352 | int code16; |
8353 | int prefix; | |
8354 | relax_substateT subtype; | |
8355 | symbolS *sym; | |
8356 | offsetT off; | |
8357 | ||
f8a5c266 | 8358 | code16 = flag_code == CODE_16BIT ? CODE16 : 0; |
a501d77e | 8359 | size = i.disp_encoding == disp_encoding_32bit ? BIG : SMALL; |
29b0f896 AM |
8360 | |
8361 | prefix = 0; | |
8362 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 8363 | { |
29b0f896 AM |
8364 | prefix = 1; |
8365 | i.prefixes -= 1; | |
376cd056 | 8366 | code16 ^= flip_code16(code16); |
252b5132 | 8367 | } |
29b0f896 AM |
8368 | /* Pentium4 branch hints. */ |
8369 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8370 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 8371 | { |
29b0f896 AM |
8372 | prefix++; |
8373 | i.prefixes--; | |
8374 | } | |
8375 | if (i.prefix[REX_PREFIX] != 0) | |
8376 | { | |
8377 | prefix++; | |
8378 | i.prefixes--; | |
2f66722d AM |
8379 | } |
8380 | ||
7e8b059b L |
8381 | /* BND prefixed jump. */ |
8382 | if (i.prefix[BND_PREFIX] != 0) | |
8383 | { | |
6cb0a70e JB |
8384 | prefix++; |
8385 | i.prefixes--; | |
7e8b059b L |
8386 | } |
8387 | ||
f2810fe0 JB |
8388 | if (i.prefixes != 0) |
8389 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
29b0f896 AM |
8390 | |
8391 | /* It's always a symbol; End frag & setup for relax. | |
8392 | Make sure there is enough room in this frag for the largest | |
8393 | instruction we may generate in md_convert_frag. This is 2 | |
8394 | bytes for the opcode and room for the prefix and largest | |
8395 | displacement. */ | |
8396 | frag_grow (prefix + 2 + 4); | |
8397 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
8398 | p = frag_more (prefix + 1); | |
8399 | if (i.prefix[DATA_PREFIX] != 0) | |
8400 | *p++ = DATA_PREFIX_OPCODE; | |
8401 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
8402 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
8403 | *p++ = i.prefix[SEG_PREFIX]; | |
6cb0a70e JB |
8404 | if (i.prefix[BND_PREFIX] != 0) |
8405 | *p++ = BND_PREFIX_OPCODE; | |
29b0f896 AM |
8406 | if (i.prefix[REX_PREFIX] != 0) |
8407 | *p++ = i.prefix[REX_PREFIX]; | |
8408 | *p = i.tm.base_opcode; | |
8409 | ||
8410 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
f8a5c266 | 8411 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size); |
40fb9820 | 8412 | else if (cpu_arch_flags.bitfield.cpui386) |
f8a5c266 | 8413 | subtype = ENCODE_RELAX_STATE (COND_JUMP, size); |
29b0f896 | 8414 | else |
f8a5c266 | 8415 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, size); |
29b0f896 | 8416 | subtype |= code16; |
3e73aa7c | 8417 | |
29b0f896 AM |
8418 | sym = i.op[0].disps->X_add_symbol; |
8419 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 8420 | |
29b0f896 AM |
8421 | if (i.op[0].disps->X_op != O_constant |
8422 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 8423 | { |
29b0f896 AM |
8424 | /* Handle complex expressions. */ |
8425 | sym = make_expr_symbol (i.op[0].disps); | |
8426 | off = 0; | |
8427 | } | |
3e73aa7c | 8428 | |
29b0f896 AM |
8429 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
8430 | Pass reloc in fr_var. */ | |
d258b828 | 8431 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); |
29b0f896 | 8432 | } |
3e73aa7c | 8433 | |
bd7ab16b L |
8434 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8435 | /* Return TRUE iff PLT32 relocation should be used for branching to | |
8436 | symbol S. */ | |
8437 | ||
8438 | static bfd_boolean | |
8439 | need_plt32_p (symbolS *s) | |
8440 | { | |
8441 | /* PLT32 relocation is ELF only. */ | |
8442 | if (!IS_ELF) | |
8443 | return FALSE; | |
8444 | ||
a5def729 RO |
8445 | #ifdef TE_SOLARIS |
8446 | /* Don't emit PLT32 relocation on Solaris: neither native linker nor | |
8447 | krtld support it. */ | |
8448 | return FALSE; | |
8449 | #endif | |
8450 | ||
bd7ab16b L |
8451 | /* Since there is no need to prepare for PLT branch on x86-64, we |
8452 | can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can | |
8453 | be used as a marker for 32-bit PC-relative branches. */ | |
8454 | if (!object_64bit) | |
8455 | return FALSE; | |
8456 | ||
8457 | /* Weak or undefined symbol need PLT32 relocation. */ | |
8458 | if (S_IS_WEAK (s) || !S_IS_DEFINED (s)) | |
8459 | return TRUE; | |
8460 | ||
8461 | /* Non-global symbol doesn't need PLT32 relocation. */ | |
8462 | if (! S_IS_EXTERNAL (s)) | |
8463 | return FALSE; | |
8464 | ||
8465 | /* Other global symbols need PLT32 relocation. NB: Symbol with | |
8466 | non-default visibilities are treated as normal global symbol | |
8467 | so that PLT32 relocation can be used as a marker for 32-bit | |
8468 | PC-relative branches. It is useful for linker relaxation. */ | |
8469 | return TRUE; | |
8470 | } | |
8471 | #endif | |
8472 | ||
29b0f896 | 8473 | static void |
e3bb37b5 | 8474 | output_jump (void) |
29b0f896 AM |
8475 | { |
8476 | char *p; | |
8477 | int size; | |
3e02c1cc | 8478 | fixS *fixP; |
bd7ab16b | 8479 | bfd_reloc_code_real_type jump_reloc = i.reloc[0]; |
29b0f896 | 8480 | |
0cfa3eb3 | 8481 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) |
29b0f896 AM |
8482 | { |
8483 | /* This is a loop or jecxz type instruction. */ | |
8484 | size = 1; | |
8485 | if (i.prefix[ADDR_PREFIX] != 0) | |
8486 | { | |
8487 | FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE); | |
8488 | i.prefixes -= 1; | |
8489 | } | |
8490 | /* Pentium4 branch hints. */ | |
8491 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8492 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
8493 | { | |
8494 | FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]); | |
8495 | i.prefixes--; | |
3e73aa7c JH |
8496 | } |
8497 | } | |
29b0f896 AM |
8498 | else |
8499 | { | |
8500 | int code16; | |
3e73aa7c | 8501 | |
29b0f896 AM |
8502 | code16 = 0; |
8503 | if (flag_code == CODE_16BIT) | |
8504 | code16 = CODE16; | |
3e73aa7c | 8505 | |
29b0f896 AM |
8506 | if (i.prefix[DATA_PREFIX] != 0) |
8507 | { | |
8508 | FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE); | |
8509 | i.prefixes -= 1; | |
376cd056 | 8510 | code16 ^= flip_code16(code16); |
29b0f896 | 8511 | } |
252b5132 | 8512 | |
29b0f896 AM |
8513 | size = 4; |
8514 | if (code16) | |
8515 | size = 2; | |
8516 | } | |
9fcc94b6 | 8517 | |
6cb0a70e JB |
8518 | /* BND prefixed jump. */ |
8519 | if (i.prefix[BND_PREFIX] != 0) | |
29b0f896 | 8520 | { |
6cb0a70e | 8521 | FRAG_APPEND_1_CHAR (i.prefix[BND_PREFIX]); |
29b0f896 AM |
8522 | i.prefixes -= 1; |
8523 | } | |
252b5132 | 8524 | |
6cb0a70e | 8525 | if (i.prefix[REX_PREFIX] != 0) |
7e8b059b | 8526 | { |
6cb0a70e | 8527 | FRAG_APPEND_1_CHAR (i.prefix[REX_PREFIX]); |
7e8b059b L |
8528 | i.prefixes -= 1; |
8529 | } | |
8530 | ||
f2810fe0 JB |
8531 | if (i.prefixes != 0) |
8532 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
e0890092 | 8533 | |
42164a71 L |
8534 | p = frag_more (i.tm.opcode_length + size); |
8535 | switch (i.tm.opcode_length) | |
8536 | { | |
8537 | case 2: | |
8538 | *p++ = i.tm.base_opcode >> 8; | |
1a0670f3 | 8539 | /* Fall through. */ |
42164a71 L |
8540 | case 1: |
8541 | *p++ = i.tm.base_opcode; | |
8542 | break; | |
8543 | default: | |
8544 | abort (); | |
8545 | } | |
e0890092 | 8546 | |
bd7ab16b L |
8547 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8548 | if (size == 4 | |
8549 | && jump_reloc == NO_RELOC | |
8550 | && need_plt32_p (i.op[0].disps->X_add_symbol)) | |
8551 | jump_reloc = BFD_RELOC_X86_64_PLT32; | |
8552 | #endif | |
8553 | ||
8554 | jump_reloc = reloc (size, 1, 1, jump_reloc); | |
8555 | ||
3e02c1cc | 8556 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
bd7ab16b | 8557 | i.op[0].disps, 1, jump_reloc); |
3e02c1cc AM |
8558 | |
8559 | /* All jumps handled here are signed, but don't use a signed limit | |
8560 | check for 32 and 16 bit jumps as we want to allow wrap around at | |
8561 | 4G and 64k respectively. */ | |
8562 | if (size == 1) | |
8563 | fixP->fx_signed = 1; | |
29b0f896 | 8564 | } |
e0890092 | 8565 | |
29b0f896 | 8566 | static void |
e3bb37b5 | 8567 | output_interseg_jump (void) |
29b0f896 AM |
8568 | { |
8569 | char *p; | |
8570 | int size; | |
8571 | int prefix; | |
8572 | int code16; | |
252b5132 | 8573 | |
29b0f896 AM |
8574 | code16 = 0; |
8575 | if (flag_code == CODE_16BIT) | |
8576 | code16 = CODE16; | |
a217f122 | 8577 | |
29b0f896 AM |
8578 | prefix = 0; |
8579 | if (i.prefix[DATA_PREFIX] != 0) | |
8580 | { | |
8581 | prefix = 1; | |
8582 | i.prefixes -= 1; | |
8583 | code16 ^= CODE16; | |
8584 | } | |
6cb0a70e JB |
8585 | |
8586 | gas_assert (!i.prefix[REX_PREFIX]); | |
252b5132 | 8587 | |
29b0f896 AM |
8588 | size = 4; |
8589 | if (code16) | |
8590 | size = 2; | |
252b5132 | 8591 | |
f2810fe0 JB |
8592 | if (i.prefixes != 0) |
8593 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
252b5132 | 8594 | |
29b0f896 AM |
8595 | /* 1 opcode; 2 segment; offset */ |
8596 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 8597 | |
29b0f896 AM |
8598 | if (i.prefix[DATA_PREFIX] != 0) |
8599 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 8600 | |
29b0f896 AM |
8601 | if (i.prefix[REX_PREFIX] != 0) |
8602 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 8603 | |
29b0f896 AM |
8604 | *p++ = i.tm.base_opcode; |
8605 | if (i.op[1].imms->X_op == O_constant) | |
8606 | { | |
8607 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 8608 | |
29b0f896 AM |
8609 | if (size == 2 |
8610 | && !fits_in_unsigned_word (n) | |
8611 | && !fits_in_signed_word (n)) | |
8612 | { | |
8613 | as_bad (_("16-bit jump out of range")); | |
8614 | return; | |
8615 | } | |
8616 | md_number_to_chars (p, n, size); | |
8617 | } | |
8618 | else | |
8619 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
d258b828 | 8620 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); |
29b0f896 AM |
8621 | if (i.op[0].imms->X_op != O_constant) |
8622 | as_bad (_("can't handle non absolute segment in `%s'"), | |
8623 | i.tm.name); | |
8624 | md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2); | |
8625 | } | |
a217f122 | 8626 | |
b4a3a7b4 L |
8627 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8628 | void | |
8629 | x86_cleanup (void) | |
8630 | { | |
8631 | char *p; | |
8632 | asection *seg = now_seg; | |
8633 | subsegT subseg = now_subseg; | |
8634 | asection *sec; | |
8635 | unsigned int alignment, align_size_1; | |
8636 | unsigned int isa_1_descsz, feature_2_descsz, descsz; | |
8637 | unsigned int isa_1_descsz_raw, feature_2_descsz_raw; | |
8638 | unsigned int padding; | |
8639 | ||
8640 | if (!IS_ELF || !x86_used_note) | |
8641 | return; | |
8642 | ||
b4a3a7b4 L |
8643 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X86; |
8644 | ||
8645 | /* The .note.gnu.property section layout: | |
8646 | ||
8647 | Field Length Contents | |
8648 | ---- ---- ---- | |
8649 | n_namsz 4 4 | |
8650 | n_descsz 4 The note descriptor size | |
8651 | n_type 4 NT_GNU_PROPERTY_TYPE_0 | |
8652 | n_name 4 "GNU" | |
8653 | n_desc n_descsz The program property array | |
8654 | .... .... .... | |
8655 | */ | |
8656 | ||
8657 | /* Create the .note.gnu.property section. */ | |
8658 | sec = subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME, 0); | |
fd361982 | 8659 | bfd_set_section_flags (sec, |
b4a3a7b4 L |
8660 | (SEC_ALLOC |
8661 | | SEC_LOAD | |
8662 | | SEC_DATA | |
8663 | | SEC_HAS_CONTENTS | |
8664 | | SEC_READONLY)); | |
8665 | ||
8666 | if (get_elf_backend_data (stdoutput)->s->elfclass == ELFCLASS64) | |
8667 | { | |
8668 | align_size_1 = 7; | |
8669 | alignment = 3; | |
8670 | } | |
8671 | else | |
8672 | { | |
8673 | align_size_1 = 3; | |
8674 | alignment = 2; | |
8675 | } | |
8676 | ||
fd361982 | 8677 | bfd_set_section_alignment (sec, alignment); |
b4a3a7b4 L |
8678 | elf_section_type (sec) = SHT_NOTE; |
8679 | ||
8680 | /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size | |
8681 | + 4-byte data */ | |
8682 | isa_1_descsz_raw = 4 + 4 + 4; | |
8683 | /* Align GNU_PROPERTY_X86_ISA_1_USED. */ | |
8684 | isa_1_descsz = (isa_1_descsz_raw + align_size_1) & ~align_size_1; | |
8685 | ||
8686 | feature_2_descsz_raw = isa_1_descsz; | |
8687 | /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size | |
8688 | + 4-byte data */ | |
8689 | feature_2_descsz_raw += 4 + 4 + 4; | |
8690 | /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
8691 | feature_2_descsz = ((feature_2_descsz_raw + align_size_1) | |
8692 | & ~align_size_1); | |
8693 | ||
8694 | descsz = feature_2_descsz; | |
8695 | /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */ | |
8696 | p = frag_more (4 + 4 + 4 + 4 + descsz); | |
8697 | ||
8698 | /* Write n_namsz. */ | |
8699 | md_number_to_chars (p, (valueT) 4, 4); | |
8700 | ||
8701 | /* Write n_descsz. */ | |
8702 | md_number_to_chars (p + 4, (valueT) descsz, 4); | |
8703 | ||
8704 | /* Write n_type. */ | |
8705 | md_number_to_chars (p + 4 * 2, (valueT) NT_GNU_PROPERTY_TYPE_0, 4); | |
8706 | ||
8707 | /* Write n_name. */ | |
8708 | memcpy (p + 4 * 3, "GNU", 4); | |
8709 | ||
8710 | /* Write 4-byte type. */ | |
8711 | md_number_to_chars (p + 4 * 4, | |
8712 | (valueT) GNU_PROPERTY_X86_ISA_1_USED, 4); | |
8713 | ||
8714 | /* Write 4-byte data size. */ | |
8715 | md_number_to_chars (p + 4 * 5, (valueT) 4, 4); | |
8716 | ||
8717 | /* Write 4-byte data. */ | |
8718 | md_number_to_chars (p + 4 * 6, (valueT) x86_isa_1_used, 4); | |
8719 | ||
8720 | /* Zero out paddings. */ | |
8721 | padding = isa_1_descsz - isa_1_descsz_raw; | |
8722 | if (padding) | |
8723 | memset (p + 4 * 7, 0, padding); | |
8724 | ||
8725 | /* Write 4-byte type. */ | |
8726 | md_number_to_chars (p + isa_1_descsz + 4 * 4, | |
8727 | (valueT) GNU_PROPERTY_X86_FEATURE_2_USED, 4); | |
8728 | ||
8729 | /* Write 4-byte data size. */ | |
8730 | md_number_to_chars (p + isa_1_descsz + 4 * 5, (valueT) 4, 4); | |
8731 | ||
8732 | /* Write 4-byte data. */ | |
8733 | md_number_to_chars (p + isa_1_descsz + 4 * 6, | |
8734 | (valueT) x86_feature_2_used, 4); | |
8735 | ||
8736 | /* Zero out paddings. */ | |
8737 | padding = feature_2_descsz - feature_2_descsz_raw; | |
8738 | if (padding) | |
8739 | memset (p + isa_1_descsz + 4 * 7, 0, padding); | |
8740 | ||
8741 | /* We probably can't restore the current segment, for there likely | |
8742 | isn't one yet... */ | |
8743 | if (seg && subseg) | |
8744 | subseg_set (seg, subseg); | |
8745 | } | |
8746 | #endif | |
8747 | ||
9c33702b JB |
8748 | static unsigned int |
8749 | encoding_length (const fragS *start_frag, offsetT start_off, | |
8750 | const char *frag_now_ptr) | |
8751 | { | |
8752 | unsigned int len = 0; | |
8753 | ||
8754 | if (start_frag != frag_now) | |
8755 | { | |
8756 | const fragS *fr = start_frag; | |
8757 | ||
8758 | do { | |
8759 | len += fr->fr_fix; | |
8760 | fr = fr->fr_next; | |
8761 | } while (fr && fr != frag_now); | |
8762 | } | |
8763 | ||
8764 | return len - start_off + (frag_now_ptr - frag_now->fr_literal); | |
8765 | } | |
8766 | ||
e379e5f3 | 8767 | /* Return 1 for test, and, cmp, add, sub, inc and dec which may |
79d72f45 HL |
8768 | be macro-fused with conditional jumps. |
8769 | NB: If TEST/AND/CMP/ADD/SUB/INC/DEC is of RIP relative address, | |
8770 | or is one of the following format: | |
8771 | ||
8772 | cmp m, imm | |
8773 | add m, imm | |
8774 | sub m, imm | |
8775 | test m, imm | |
8776 | and m, imm | |
8777 | inc m | |
8778 | dec m | |
8779 | ||
8780 | it is unfusible. */ | |
e379e5f3 L |
8781 | |
8782 | static int | |
79d72f45 | 8783 | maybe_fused_with_jcc_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
8784 | { |
8785 | /* No RIP address. */ | |
8786 | if (i.base_reg && i.base_reg->reg_num == RegIP) | |
8787 | return 0; | |
8788 | ||
8789 | /* No VEX/EVEX encoding. */ | |
8790 | if (is_any_vex_encoding (&i.tm)) | |
8791 | return 0; | |
8792 | ||
79d72f45 HL |
8793 | /* add, sub without add/sub m, imm. */ |
8794 | if (i.tm.base_opcode <= 5 | |
e379e5f3 L |
8795 | || (i.tm.base_opcode >= 0x28 && i.tm.base_opcode <= 0x2d) |
8796 | || ((i.tm.base_opcode | 3) == 0x83 | |
79d72f45 | 8797 | && (i.tm.extension_opcode == 0x5 |
e379e5f3 | 8798 | || i.tm.extension_opcode == 0x0))) |
79d72f45 HL |
8799 | { |
8800 | *mf_cmp_p = mf_cmp_alu_cmp; | |
8801 | return !(i.mem_operands && i.imm_operands); | |
8802 | } | |
e379e5f3 | 8803 | |
79d72f45 HL |
8804 | /* and without and m, imm. */ |
8805 | if ((i.tm.base_opcode >= 0x20 && i.tm.base_opcode <= 0x25) | |
8806 | || ((i.tm.base_opcode | 3) == 0x83 | |
8807 | && i.tm.extension_opcode == 0x4)) | |
8808 | { | |
8809 | *mf_cmp_p = mf_cmp_test_and; | |
8810 | return !(i.mem_operands && i.imm_operands); | |
8811 | } | |
8812 | ||
8813 | /* test without test m imm. */ | |
e379e5f3 L |
8814 | if ((i.tm.base_opcode | 1) == 0x85 |
8815 | || (i.tm.base_opcode | 1) == 0xa9 | |
8816 | || ((i.tm.base_opcode | 1) == 0xf7 | |
79d72f45 HL |
8817 | && i.tm.extension_opcode == 0)) |
8818 | { | |
8819 | *mf_cmp_p = mf_cmp_test_and; | |
8820 | return !(i.mem_operands && i.imm_operands); | |
8821 | } | |
8822 | ||
8823 | /* cmp without cmp m, imm. */ | |
8824 | if ((i.tm.base_opcode >= 0x38 && i.tm.base_opcode <= 0x3d) | |
e379e5f3 L |
8825 | || ((i.tm.base_opcode | 3) == 0x83 |
8826 | && (i.tm.extension_opcode == 0x7))) | |
79d72f45 HL |
8827 | { |
8828 | *mf_cmp_p = mf_cmp_alu_cmp; | |
8829 | return !(i.mem_operands && i.imm_operands); | |
8830 | } | |
e379e5f3 | 8831 | |
79d72f45 | 8832 | /* inc, dec without inc/dec m. */ |
e379e5f3 L |
8833 | if ((i.tm.cpu_flags.bitfield.cpuno64 |
8834 | && (i.tm.base_opcode | 0xf) == 0x4f) | |
8835 | || ((i.tm.base_opcode | 1) == 0xff | |
8836 | && i.tm.extension_opcode <= 0x1)) | |
79d72f45 HL |
8837 | { |
8838 | *mf_cmp_p = mf_cmp_incdec; | |
8839 | return !i.mem_operands; | |
8840 | } | |
e379e5f3 L |
8841 | |
8842 | return 0; | |
8843 | } | |
8844 | ||
8845 | /* Return 1 if a FUSED_JCC_PADDING frag should be generated. */ | |
8846 | ||
8847 | static int | |
79d72f45 | 8848 | add_fused_jcc_padding_frag_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
8849 | { |
8850 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
8851 | if (!align_branch_power | |
8852 | || now_seg == absolute_section | |
8853 | || !cpu_arch_flags.bitfield.cpui386 | |
8854 | || !(align_branch & align_branch_fused_bit)) | |
8855 | return 0; | |
8856 | ||
79d72f45 | 8857 | if (maybe_fused_with_jcc_p (mf_cmp_p)) |
e379e5f3 L |
8858 | { |
8859 | if (last_insn.kind == last_insn_other | |
8860 | || last_insn.seg != now_seg) | |
8861 | return 1; | |
8862 | if (flag_debug) | |
8863 | as_warn_where (last_insn.file, last_insn.line, | |
8864 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
8865 | last_insn.name, i.tm.name); | |
8866 | } | |
8867 | ||
8868 | return 0; | |
8869 | } | |
8870 | ||
8871 | /* Return 1 if a BRANCH_PREFIX frag should be generated. */ | |
8872 | ||
8873 | static int | |
8874 | add_branch_prefix_frag_p (void) | |
8875 | { | |
8876 | /* NB: Don't work with COND_JUMP86 without i386. Don't add prefix | |
8877 | to PadLock instructions since they include prefixes in opcode. */ | |
8878 | if (!align_branch_power | |
8879 | || !align_branch_prefix_size | |
8880 | || now_seg == absolute_section | |
8881 | || i.tm.cpu_flags.bitfield.cpupadlock | |
8882 | || !cpu_arch_flags.bitfield.cpui386) | |
8883 | return 0; | |
8884 | ||
8885 | /* Don't add prefix if it is a prefix or there is no operand in case | |
8886 | that segment prefix is special. */ | |
8887 | if (!i.operands || i.tm.opcode_modifier.isprefix) | |
8888 | return 0; | |
8889 | ||
8890 | if (last_insn.kind == last_insn_other | |
8891 | || last_insn.seg != now_seg) | |
8892 | return 1; | |
8893 | ||
8894 | if (flag_debug) | |
8895 | as_warn_where (last_insn.file, last_insn.line, | |
8896 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
8897 | last_insn.name, i.tm.name); | |
8898 | ||
8899 | return 0; | |
8900 | } | |
8901 | ||
8902 | /* Return 1 if a BRANCH_PADDING frag should be generated. */ | |
8903 | ||
8904 | static int | |
79d72f45 HL |
8905 | add_branch_padding_frag_p (enum align_branch_kind *branch_p, |
8906 | enum mf_jcc_kind *mf_jcc_p) | |
e379e5f3 L |
8907 | { |
8908 | int add_padding; | |
8909 | ||
8910 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
8911 | if (!align_branch_power | |
8912 | || now_seg == absolute_section | |
8913 | || !cpu_arch_flags.bitfield.cpui386) | |
8914 | return 0; | |
8915 | ||
8916 | add_padding = 0; | |
8917 | ||
8918 | /* Check for jcc and direct jmp. */ | |
8919 | if (i.tm.opcode_modifier.jump == JUMP) | |
8920 | { | |
8921 | if (i.tm.base_opcode == JUMP_PC_RELATIVE) | |
8922 | { | |
8923 | *branch_p = align_branch_jmp; | |
8924 | add_padding = align_branch & align_branch_jmp_bit; | |
8925 | } | |
8926 | else | |
8927 | { | |
79d72f45 HL |
8928 | /* Because J<cc> and JN<cc> share same group in macro-fusible table, |
8929 | igore the lowest bit. */ | |
8930 | *mf_jcc_p = (i.tm.base_opcode & 0x0e) >> 1; | |
e379e5f3 L |
8931 | *branch_p = align_branch_jcc; |
8932 | if ((align_branch & align_branch_jcc_bit)) | |
8933 | add_padding = 1; | |
8934 | } | |
8935 | } | |
8936 | else if (is_any_vex_encoding (&i.tm)) | |
8937 | return 0; | |
8938 | else if ((i.tm.base_opcode | 1) == 0xc3) | |
8939 | { | |
8940 | /* Near ret. */ | |
8941 | *branch_p = align_branch_ret; | |
8942 | if ((align_branch & align_branch_ret_bit)) | |
8943 | add_padding = 1; | |
8944 | } | |
8945 | else | |
8946 | { | |
8947 | /* Check for indirect jmp, direct and indirect calls. */ | |
8948 | if (i.tm.base_opcode == 0xe8) | |
8949 | { | |
8950 | /* Direct call. */ | |
8951 | *branch_p = align_branch_call; | |
8952 | if ((align_branch & align_branch_call_bit)) | |
8953 | add_padding = 1; | |
8954 | } | |
8955 | else if (i.tm.base_opcode == 0xff | |
8956 | && (i.tm.extension_opcode == 2 | |
8957 | || i.tm.extension_opcode == 4)) | |
8958 | { | |
8959 | /* Indirect call and jmp. */ | |
8960 | *branch_p = align_branch_indirect; | |
8961 | if ((align_branch & align_branch_indirect_bit)) | |
8962 | add_padding = 1; | |
8963 | } | |
8964 | ||
8965 | if (add_padding | |
8966 | && i.disp_operands | |
8967 | && tls_get_addr | |
8968 | && (i.op[0].disps->X_op == O_symbol | |
8969 | || (i.op[0].disps->X_op == O_subtract | |
8970 | && i.op[0].disps->X_op_symbol == GOT_symbol))) | |
8971 | { | |
8972 | symbolS *s = i.op[0].disps->X_add_symbol; | |
8973 | /* No padding to call to global or undefined tls_get_addr. */ | |
8974 | if ((S_IS_EXTERNAL (s) || !S_IS_DEFINED (s)) | |
8975 | && strcmp (S_GET_NAME (s), tls_get_addr) == 0) | |
8976 | return 0; | |
8977 | } | |
8978 | } | |
8979 | ||
8980 | if (add_padding | |
8981 | && last_insn.kind != last_insn_other | |
8982 | && last_insn.seg == now_seg) | |
8983 | { | |
8984 | if (flag_debug) | |
8985 | as_warn_where (last_insn.file, last_insn.line, | |
8986 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
8987 | last_insn.name, i.tm.name); | |
8988 | return 0; | |
8989 | } | |
8990 | ||
8991 | return add_padding; | |
8992 | } | |
8993 | ||
29b0f896 | 8994 | static void |
e3bb37b5 | 8995 | output_insn (void) |
29b0f896 | 8996 | { |
2bbd9c25 JJ |
8997 | fragS *insn_start_frag; |
8998 | offsetT insn_start_off; | |
e379e5f3 L |
8999 | fragS *fragP = NULL; |
9000 | enum align_branch_kind branch = align_branch_none; | |
79d72f45 HL |
9001 | /* The initializer is arbitrary just to avoid uninitialized error. |
9002 | it's actually either assigned in add_branch_padding_frag_p | |
9003 | or never be used. */ | |
9004 | enum mf_jcc_kind mf_jcc = mf_jcc_jo; | |
2bbd9c25 | 9005 | |
b4a3a7b4 L |
9006 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
9007 | if (IS_ELF && x86_used_note) | |
9008 | { | |
9009 | if (i.tm.cpu_flags.bitfield.cpucmov) | |
9010 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_CMOV; | |
9011 | if (i.tm.cpu_flags.bitfield.cpusse) | |
9012 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE; | |
9013 | if (i.tm.cpu_flags.bitfield.cpusse2) | |
9014 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE2; | |
9015 | if (i.tm.cpu_flags.bitfield.cpusse3) | |
9016 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE3; | |
9017 | if (i.tm.cpu_flags.bitfield.cpussse3) | |
9018 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSSE3; | |
9019 | if (i.tm.cpu_flags.bitfield.cpusse4_1) | |
9020 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_1; | |
9021 | if (i.tm.cpu_flags.bitfield.cpusse4_2) | |
9022 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_2; | |
9023 | if (i.tm.cpu_flags.bitfield.cpuavx) | |
9024 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX; | |
9025 | if (i.tm.cpu_flags.bitfield.cpuavx2) | |
9026 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX2; | |
9027 | if (i.tm.cpu_flags.bitfield.cpufma) | |
9028 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_FMA; | |
9029 | if (i.tm.cpu_flags.bitfield.cpuavx512f) | |
9030 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512F; | |
9031 | if (i.tm.cpu_flags.bitfield.cpuavx512cd) | |
9032 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512CD; | |
9033 | if (i.tm.cpu_flags.bitfield.cpuavx512er) | |
9034 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512ER; | |
9035 | if (i.tm.cpu_flags.bitfield.cpuavx512pf) | |
9036 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512PF; | |
9037 | if (i.tm.cpu_flags.bitfield.cpuavx512vl) | |
9038 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512VL; | |
9039 | if (i.tm.cpu_flags.bitfield.cpuavx512dq) | |
9040 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512DQ; | |
9041 | if (i.tm.cpu_flags.bitfield.cpuavx512bw) | |
9042 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512BW; | |
9043 | if (i.tm.cpu_flags.bitfield.cpuavx512_4fmaps) | |
9044 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS; | |
9045 | if (i.tm.cpu_flags.bitfield.cpuavx512_4vnniw) | |
9046 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW; | |
9047 | if (i.tm.cpu_flags.bitfield.cpuavx512_bitalg) | |
9048 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BITALG; | |
9049 | if (i.tm.cpu_flags.bitfield.cpuavx512ifma) | |
9050 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_IFMA; | |
9051 | if (i.tm.cpu_flags.bitfield.cpuavx512vbmi) | |
9052 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI; | |
9053 | if (i.tm.cpu_flags.bitfield.cpuavx512_vbmi2) | |
9054 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2; | |
9055 | if (i.tm.cpu_flags.bitfield.cpuavx512_vnni) | |
9056 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VNNI; | |
462cac58 L |
9057 | if (i.tm.cpu_flags.bitfield.cpuavx512_bf16) |
9058 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BF16; | |
b4a3a7b4 L |
9059 | |
9060 | if (i.tm.cpu_flags.bitfield.cpu8087 | |
9061 | || i.tm.cpu_flags.bitfield.cpu287 | |
9062 | || i.tm.cpu_flags.bitfield.cpu387 | |
9063 | || i.tm.cpu_flags.bitfield.cpu687 | |
9064 | || i.tm.cpu_flags.bitfield.cpufisttp) | |
9065 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87; | |
319ff62c JB |
9066 | if (i.has_regmmx |
9067 | || i.tm.base_opcode == 0xf77 /* emms */ | |
a7e12755 L |
9068 | || i.tm.base_opcode == 0xf0e /* femms */ |
9069 | || i.tm.base_opcode == 0xf2a /* cvtpi2ps */ | |
9070 | || i.tm.base_opcode == 0x660f2a /* cvtpi2pd */) | |
b4a3a7b4 L |
9071 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX; |
9072 | if (i.has_regxmm) | |
9073 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM; | |
9074 | if (i.has_regymm) | |
9075 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_YMM; | |
9076 | if (i.has_regzmm) | |
9077 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_ZMM; | |
9078 | if (i.tm.cpu_flags.bitfield.cpufxsr) | |
9079 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_FXSR; | |
9080 | if (i.tm.cpu_flags.bitfield.cpuxsave) | |
9081 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVE; | |
9082 | if (i.tm.cpu_flags.bitfield.cpuxsaveopt) | |
9083 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT; | |
9084 | if (i.tm.cpu_flags.bitfield.cpuxsavec) | |
9085 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEC; | |
9086 | } | |
9087 | #endif | |
9088 | ||
29b0f896 AM |
9089 | /* Tie dwarf2 debug info to the address at the start of the insn. |
9090 | We can't do this after the insn has been output as the current | |
9091 | frag may have been closed off. eg. by frag_var. */ | |
9092 | dwarf2_emit_insn (0); | |
9093 | ||
2bbd9c25 JJ |
9094 | insn_start_frag = frag_now; |
9095 | insn_start_off = frag_now_fix (); | |
9096 | ||
79d72f45 | 9097 | if (add_branch_padding_frag_p (&branch, &mf_jcc)) |
e379e5f3 L |
9098 | { |
9099 | char *p; | |
9100 | /* Branch can be 8 bytes. Leave some room for prefixes. */ | |
9101 | unsigned int max_branch_padding_size = 14; | |
9102 | ||
9103 | /* Align section to boundary. */ | |
9104 | record_alignment (now_seg, align_branch_power); | |
9105 | ||
9106 | /* Make room for padding. */ | |
9107 | frag_grow (max_branch_padding_size); | |
9108 | ||
9109 | /* Start of the padding. */ | |
9110 | p = frag_more (0); | |
9111 | ||
9112 | fragP = frag_now; | |
9113 | ||
9114 | frag_var (rs_machine_dependent, max_branch_padding_size, 0, | |
9115 | ENCODE_RELAX_STATE (BRANCH_PADDING, 0), | |
9116 | NULL, 0, p); | |
9117 | ||
79d72f45 | 9118 | fragP->tc_frag_data.mf_type = mf_jcc; |
e379e5f3 L |
9119 | fragP->tc_frag_data.branch_type = branch; |
9120 | fragP->tc_frag_data.max_bytes = max_branch_padding_size; | |
9121 | } | |
9122 | ||
29b0f896 | 9123 | /* Output jumps. */ |
0cfa3eb3 | 9124 | if (i.tm.opcode_modifier.jump == JUMP) |
29b0f896 | 9125 | output_branch (); |
0cfa3eb3 JB |
9126 | else if (i.tm.opcode_modifier.jump == JUMP_BYTE |
9127 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 | 9128 | output_jump (); |
0cfa3eb3 | 9129 | else if (i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT) |
29b0f896 AM |
9130 | output_interseg_jump (); |
9131 | else | |
9132 | { | |
9133 | /* Output normal instructions here. */ | |
9134 | char *p; | |
9135 | unsigned char *q; | |
47465058 | 9136 | unsigned int j; |
331d2d0d | 9137 | unsigned int prefix; |
79d72f45 | 9138 | enum mf_cmp_kind mf_cmp; |
4dffcebc | 9139 | |
e4e00185 | 9140 | if (avoid_fence |
c3949f43 JB |
9141 | && (i.tm.base_opcode == 0xfaee8 |
9142 | || i.tm.base_opcode == 0xfaef0 | |
9143 | || i.tm.base_opcode == 0xfaef8)) | |
e4e00185 AS |
9144 | { |
9145 | /* Encode lfence, mfence, and sfence as | |
9146 | f0 83 04 24 00 lock addl $0x0, (%{re}sp). */ | |
9147 | offsetT val = 0x240483f0ULL; | |
9148 | p = frag_more (5); | |
9149 | md_number_to_chars (p, val, 5); | |
9150 | return; | |
9151 | } | |
9152 | ||
d022bddd IT |
9153 | /* Some processors fail on LOCK prefix. This options makes |
9154 | assembler ignore LOCK prefix and serves as a workaround. */ | |
9155 | if (omit_lock_prefix) | |
9156 | { | |
9157 | if (i.tm.base_opcode == LOCK_PREFIX_OPCODE) | |
9158 | return; | |
9159 | i.prefix[LOCK_PREFIX] = 0; | |
9160 | } | |
9161 | ||
e379e5f3 L |
9162 | if (branch) |
9163 | /* Skip if this is a branch. */ | |
9164 | ; | |
79d72f45 | 9165 | else if (add_fused_jcc_padding_frag_p (&mf_cmp)) |
e379e5f3 L |
9166 | { |
9167 | /* Make room for padding. */ | |
9168 | frag_grow (MAX_FUSED_JCC_PADDING_SIZE); | |
9169 | p = frag_more (0); | |
9170 | ||
9171 | fragP = frag_now; | |
9172 | ||
9173 | frag_var (rs_machine_dependent, MAX_FUSED_JCC_PADDING_SIZE, 0, | |
9174 | ENCODE_RELAX_STATE (FUSED_JCC_PADDING, 0), | |
9175 | NULL, 0, p); | |
9176 | ||
79d72f45 | 9177 | fragP->tc_frag_data.mf_type = mf_cmp; |
e379e5f3 L |
9178 | fragP->tc_frag_data.branch_type = align_branch_fused; |
9179 | fragP->tc_frag_data.max_bytes = MAX_FUSED_JCC_PADDING_SIZE; | |
9180 | } | |
9181 | else if (add_branch_prefix_frag_p ()) | |
9182 | { | |
9183 | unsigned int max_prefix_size = align_branch_prefix_size; | |
9184 | ||
9185 | /* Make room for padding. */ | |
9186 | frag_grow (max_prefix_size); | |
9187 | p = frag_more (0); | |
9188 | ||
9189 | fragP = frag_now; | |
9190 | ||
9191 | frag_var (rs_machine_dependent, max_prefix_size, 0, | |
9192 | ENCODE_RELAX_STATE (BRANCH_PREFIX, 0), | |
9193 | NULL, 0, p); | |
9194 | ||
9195 | fragP->tc_frag_data.max_bytes = max_prefix_size; | |
9196 | } | |
9197 | ||
43234a1e L |
9198 | /* Since the VEX/EVEX prefix contains the implicit prefix, we |
9199 | don't need the explicit prefix. */ | |
9200 | if (!i.tm.opcode_modifier.vex && !i.tm.opcode_modifier.evex) | |
bc4bd9ab | 9201 | { |
c0f3af97 | 9202 | switch (i.tm.opcode_length) |
bc4bd9ab | 9203 | { |
c0f3af97 L |
9204 | case 3: |
9205 | if (i.tm.base_opcode & 0xff000000) | |
4dffcebc | 9206 | { |
c0f3af97 | 9207 | prefix = (i.tm.base_opcode >> 24) & 0xff; |
c3949f43 JB |
9208 | if (!i.tm.cpu_flags.bitfield.cpupadlock |
9209 | || prefix != REPE_PREFIX_OPCODE | |
9210 | || (i.prefix[REP_PREFIX] != REPE_PREFIX_OPCODE)) | |
9211 | add_prefix (prefix); | |
c0f3af97 L |
9212 | } |
9213 | break; | |
9214 | case 2: | |
9215 | if ((i.tm.base_opcode & 0xff0000) != 0) | |
9216 | { | |
9217 | prefix = (i.tm.base_opcode >> 16) & 0xff; | |
c3949f43 | 9218 | add_prefix (prefix); |
4dffcebc | 9219 | } |
c0f3af97 L |
9220 | break; |
9221 | case 1: | |
9222 | break; | |
390c91cf L |
9223 | case 0: |
9224 | /* Check for pseudo prefixes. */ | |
9225 | as_bad_where (insn_start_frag->fr_file, | |
9226 | insn_start_frag->fr_line, | |
9227 | _("pseudo prefix without instruction")); | |
9228 | return; | |
c0f3af97 L |
9229 | default: |
9230 | abort (); | |
bc4bd9ab | 9231 | } |
c0f3af97 | 9232 | |
6d19a37a | 9233 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
cf61b747 L |
9234 | /* For x32, add a dummy REX_OPCODE prefix for mov/add with |
9235 | R_X86_64_GOTTPOFF relocation so that linker can safely | |
14470f07 L |
9236 | perform IE->LE optimization. A dummy REX_OPCODE prefix |
9237 | is also needed for lea with R_X86_64_GOTPC32_TLSDESC | |
9238 | relocation for GDesc -> IE/LE optimization. */ | |
cf61b747 L |
9239 | if (x86_elf_abi == X86_64_X32_ABI |
9240 | && i.operands == 2 | |
14470f07 L |
9241 | && (i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF |
9242 | || i.reloc[0] == BFD_RELOC_X86_64_GOTPC32_TLSDESC) | |
cf61b747 L |
9243 | && i.prefix[REX_PREFIX] == 0) |
9244 | add_prefix (REX_OPCODE); | |
6d19a37a | 9245 | #endif |
cf61b747 | 9246 | |
c0f3af97 L |
9247 | /* The prefix bytes. */ |
9248 | for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++) | |
9249 | if (*q) | |
9250 | FRAG_APPEND_1_CHAR (*q); | |
0f10071e | 9251 | } |
ae5c1c7b | 9252 | else |
c0f3af97 L |
9253 | { |
9254 | for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++) | |
9255 | if (*q) | |
9256 | switch (j) | |
9257 | { | |
9258 | case REX_PREFIX: | |
9259 | /* REX byte is encoded in VEX prefix. */ | |
9260 | break; | |
9261 | case SEG_PREFIX: | |
9262 | case ADDR_PREFIX: | |
9263 | FRAG_APPEND_1_CHAR (*q); | |
9264 | break; | |
9265 | default: | |
9266 | /* There should be no other prefixes for instructions | |
9267 | with VEX prefix. */ | |
9268 | abort (); | |
9269 | } | |
9270 | ||
43234a1e L |
9271 | /* For EVEX instructions i.vrex should become 0 after |
9272 | build_evex_prefix. For VEX instructions upper 16 registers | |
9273 | aren't available, so VREX should be 0. */ | |
9274 | if (i.vrex) | |
9275 | abort (); | |
c0f3af97 L |
9276 | /* Now the VEX prefix. */ |
9277 | p = frag_more (i.vex.length); | |
9278 | for (j = 0; j < i.vex.length; j++) | |
9279 | p[j] = i.vex.bytes[j]; | |
9280 | } | |
252b5132 | 9281 | |
29b0f896 | 9282 | /* Now the opcode; be careful about word order here! */ |
4dffcebc | 9283 | if (i.tm.opcode_length == 1) |
29b0f896 AM |
9284 | { |
9285 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
9286 | } | |
9287 | else | |
9288 | { | |
4dffcebc | 9289 | switch (i.tm.opcode_length) |
331d2d0d | 9290 | { |
43234a1e L |
9291 | case 4: |
9292 | p = frag_more (4); | |
9293 | *p++ = (i.tm.base_opcode >> 24) & 0xff; | |
9294 | *p++ = (i.tm.base_opcode >> 16) & 0xff; | |
9295 | break; | |
4dffcebc | 9296 | case 3: |
331d2d0d L |
9297 | p = frag_more (3); |
9298 | *p++ = (i.tm.base_opcode >> 16) & 0xff; | |
4dffcebc L |
9299 | break; |
9300 | case 2: | |
9301 | p = frag_more (2); | |
9302 | break; | |
9303 | default: | |
9304 | abort (); | |
9305 | break; | |
331d2d0d | 9306 | } |
0f10071e | 9307 | |
29b0f896 AM |
9308 | /* Put out high byte first: can't use md_number_to_chars! */ |
9309 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
9310 | *p = i.tm.base_opcode & 0xff; | |
9311 | } | |
3e73aa7c | 9312 | |
29b0f896 | 9313 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 9314 | if (i.tm.opcode_modifier.modrm) |
29b0f896 | 9315 | { |
4a3523fa L |
9316 | FRAG_APPEND_1_CHAR ((i.rm.regmem << 0 |
9317 | | i.rm.reg << 3 | |
9318 | | i.rm.mode << 6)); | |
29b0f896 AM |
9319 | /* If i.rm.regmem == ESP (4) |
9320 | && i.rm.mode != (Register mode) | |
9321 | && not 16 bit | |
9322 | ==> need second modrm byte. */ | |
9323 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
9324 | && i.rm.mode != 3 | |
dc821c5f | 9325 | && !(i.base_reg && i.base_reg->reg_type.bitfield.word)) |
4a3523fa L |
9326 | FRAG_APPEND_1_CHAR ((i.sib.base << 0 |
9327 | | i.sib.index << 3 | |
9328 | | i.sib.scale << 6)); | |
29b0f896 | 9329 | } |
3e73aa7c | 9330 | |
29b0f896 | 9331 | if (i.disp_operands) |
2bbd9c25 | 9332 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 9333 | |
29b0f896 | 9334 | if (i.imm_operands) |
2bbd9c25 | 9335 | output_imm (insn_start_frag, insn_start_off); |
9c33702b JB |
9336 | |
9337 | /* | |
9338 | * frag_now_fix () returning plain abs_section_offset when we're in the | |
9339 | * absolute section, and abs_section_offset not getting updated as data | |
9340 | * gets added to the frag breaks the logic below. | |
9341 | */ | |
9342 | if (now_seg != absolute_section) | |
9343 | { | |
9344 | j = encoding_length (insn_start_frag, insn_start_off, frag_more (0)); | |
9345 | if (j > 15) | |
9346 | as_warn (_("instruction length of %u bytes exceeds the limit of 15"), | |
9347 | j); | |
e379e5f3 L |
9348 | else if (fragP) |
9349 | { | |
9350 | /* NB: Don't add prefix with GOTPC relocation since | |
9351 | output_disp() above depends on the fixed encoding | |
9352 | length. Can't add prefix with TLS relocation since | |
9353 | it breaks TLS linker optimization. */ | |
9354 | unsigned int max = i.has_gotpc_tls_reloc ? 0 : 15 - j; | |
9355 | /* Prefix count on the current instruction. */ | |
9356 | unsigned int count = i.vex.length; | |
9357 | unsigned int k; | |
9358 | for (k = 0; k < ARRAY_SIZE (i.prefix); k++) | |
9359 | /* REX byte is encoded in VEX/EVEX prefix. */ | |
9360 | if (i.prefix[k] && (k != REX_PREFIX || !i.vex.length)) | |
9361 | count++; | |
9362 | ||
9363 | /* Count prefixes for extended opcode maps. */ | |
9364 | if (!i.vex.length) | |
9365 | switch (i.tm.opcode_length) | |
9366 | { | |
9367 | case 3: | |
9368 | if (((i.tm.base_opcode >> 16) & 0xff) == 0xf) | |
9369 | { | |
9370 | count++; | |
9371 | switch ((i.tm.base_opcode >> 8) & 0xff) | |
9372 | { | |
9373 | case 0x38: | |
9374 | case 0x3a: | |
9375 | count++; | |
9376 | break; | |
9377 | default: | |
9378 | break; | |
9379 | } | |
9380 | } | |
9381 | break; | |
9382 | case 2: | |
9383 | if (((i.tm.base_opcode >> 8) & 0xff) == 0xf) | |
9384 | count++; | |
9385 | break; | |
9386 | case 1: | |
9387 | break; | |
9388 | default: | |
9389 | abort (); | |
9390 | } | |
9391 | ||
9392 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
9393 | == BRANCH_PREFIX) | |
9394 | { | |
9395 | /* Set the maximum prefix size in BRANCH_PREFIX | |
9396 | frag. */ | |
9397 | if (fragP->tc_frag_data.max_bytes > max) | |
9398 | fragP->tc_frag_data.max_bytes = max; | |
9399 | if (fragP->tc_frag_data.max_bytes > count) | |
9400 | fragP->tc_frag_data.max_bytes -= count; | |
9401 | else | |
9402 | fragP->tc_frag_data.max_bytes = 0; | |
9403 | } | |
9404 | else | |
9405 | { | |
9406 | /* Remember the maximum prefix size in FUSED_JCC_PADDING | |
9407 | frag. */ | |
9408 | unsigned int max_prefix_size; | |
9409 | if (align_branch_prefix_size > max) | |
9410 | max_prefix_size = max; | |
9411 | else | |
9412 | max_prefix_size = align_branch_prefix_size; | |
9413 | if (max_prefix_size > count) | |
9414 | fragP->tc_frag_data.max_prefix_length | |
9415 | = max_prefix_size - count; | |
9416 | } | |
9417 | ||
9418 | /* Use existing segment prefix if possible. Use CS | |
9419 | segment prefix in 64-bit mode. In 32-bit mode, use SS | |
9420 | segment prefix with ESP/EBP base register and use DS | |
9421 | segment prefix without ESP/EBP base register. */ | |
9422 | if (i.prefix[SEG_PREFIX]) | |
9423 | fragP->tc_frag_data.default_prefix = i.prefix[SEG_PREFIX]; | |
9424 | else if (flag_code == CODE_64BIT) | |
9425 | fragP->tc_frag_data.default_prefix = CS_PREFIX_OPCODE; | |
9426 | else if (i.base_reg | |
9427 | && (i.base_reg->reg_num == 4 | |
9428 | || i.base_reg->reg_num == 5)) | |
9429 | fragP->tc_frag_data.default_prefix = SS_PREFIX_OPCODE; | |
9430 | else | |
9431 | fragP->tc_frag_data.default_prefix = DS_PREFIX_OPCODE; | |
9432 | } | |
9c33702b | 9433 | } |
29b0f896 | 9434 | } |
252b5132 | 9435 | |
e379e5f3 L |
9436 | /* NB: Don't work with COND_JUMP86 without i386. */ |
9437 | if (align_branch_power | |
9438 | && now_seg != absolute_section | |
9439 | && cpu_arch_flags.bitfield.cpui386) | |
9440 | { | |
9441 | /* Terminate each frag so that we can add prefix and check for | |
9442 | fused jcc. */ | |
9443 | frag_wane (frag_now); | |
9444 | frag_new (0); | |
9445 | } | |
9446 | ||
29b0f896 AM |
9447 | #ifdef DEBUG386 |
9448 | if (flag_debug) | |
9449 | { | |
7b81dfbb | 9450 | pi ("" /*line*/, &i); |
29b0f896 AM |
9451 | } |
9452 | #endif /* DEBUG386 */ | |
9453 | } | |
252b5132 | 9454 | |
e205caa7 L |
9455 | /* Return the size of the displacement operand N. */ |
9456 | ||
9457 | static int | |
9458 | disp_size (unsigned int n) | |
9459 | { | |
9460 | int size = 4; | |
43234a1e | 9461 | |
b5014f7a | 9462 | if (i.types[n].bitfield.disp64) |
40fb9820 L |
9463 | size = 8; |
9464 | else if (i.types[n].bitfield.disp8) | |
9465 | size = 1; | |
9466 | else if (i.types[n].bitfield.disp16) | |
9467 | size = 2; | |
e205caa7 L |
9468 | return size; |
9469 | } | |
9470 | ||
9471 | /* Return the size of the immediate operand N. */ | |
9472 | ||
9473 | static int | |
9474 | imm_size (unsigned int n) | |
9475 | { | |
9476 | int size = 4; | |
40fb9820 L |
9477 | if (i.types[n].bitfield.imm64) |
9478 | size = 8; | |
9479 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
9480 | size = 1; | |
9481 | else if (i.types[n].bitfield.imm16) | |
9482 | size = 2; | |
e205caa7 L |
9483 | return size; |
9484 | } | |
9485 | ||
29b0f896 | 9486 | static void |
64e74474 | 9487 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
9488 | { |
9489 | char *p; | |
9490 | unsigned int n; | |
252b5132 | 9491 | |
29b0f896 AM |
9492 | for (n = 0; n < i.operands; n++) |
9493 | { | |
b5014f7a | 9494 | if (operand_type_check (i.types[n], disp)) |
29b0f896 AM |
9495 | { |
9496 | if (i.op[n].disps->X_op == O_constant) | |
9497 | { | |
e205caa7 | 9498 | int size = disp_size (n); |
43234a1e | 9499 | offsetT val = i.op[n].disps->X_add_number; |
252b5132 | 9500 | |
629cfaf1 JB |
9501 | val = offset_in_range (val >> (size == 1 ? i.memshift : 0), |
9502 | size); | |
29b0f896 AM |
9503 | p = frag_more (size); |
9504 | md_number_to_chars (p, val, size); | |
9505 | } | |
9506 | else | |
9507 | { | |
f86103b7 | 9508 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 9509 | int size = disp_size (n); |
40fb9820 | 9510 | int sign = i.types[n].bitfield.disp32s; |
29b0f896 | 9511 | int pcrel = (i.flags[n] & Operand_PCrel) != 0; |
02a86693 | 9512 | fixS *fixP; |
29b0f896 | 9513 | |
e205caa7 | 9514 | /* We can't have 8 bit displacement here. */ |
9c2799c2 | 9515 | gas_assert (!i.types[n].bitfield.disp8); |
e205caa7 | 9516 | |
29b0f896 AM |
9517 | /* The PC relative address is computed relative |
9518 | to the instruction boundary, so in case immediate | |
9519 | fields follows, we need to adjust the value. */ | |
9520 | if (pcrel && i.imm_operands) | |
9521 | { | |
29b0f896 | 9522 | unsigned int n1; |
e205caa7 | 9523 | int sz = 0; |
252b5132 | 9524 | |
29b0f896 | 9525 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 9526 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 9527 | { |
e205caa7 L |
9528 | /* Only one immediate is allowed for PC |
9529 | relative address. */ | |
9c2799c2 | 9530 | gas_assert (sz == 0); |
e205caa7 L |
9531 | sz = imm_size (n1); |
9532 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 9533 | } |
29b0f896 | 9534 | /* We should find the immediate. */ |
9c2799c2 | 9535 | gas_assert (sz != 0); |
29b0f896 | 9536 | } |
520dc8e8 | 9537 | |
29b0f896 | 9538 | p = frag_more (size); |
d258b828 | 9539 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 9540 | if (GOT_symbol |
2bbd9c25 | 9541 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 9542 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
9543 | || reloc_type == BFD_RELOC_X86_64_32S |
9544 | || (reloc_type == BFD_RELOC_64 | |
9545 | && object_64bit)) | |
d6ab8113 JB |
9546 | && (i.op[n].disps->X_op == O_symbol |
9547 | || (i.op[n].disps->X_op == O_add | |
9548 | && ((symbol_get_value_expression | |
9549 | (i.op[n].disps->X_op_symbol)->X_op) | |
9550 | == O_subtract)))) | |
9551 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 | 9552 | { |
4fa24527 | 9553 | if (!object_64bit) |
7b81dfbb AJ |
9554 | { |
9555 | reloc_type = BFD_RELOC_386_GOTPC; | |
e379e5f3 | 9556 | i.has_gotpc_tls_reloc = TRUE; |
d583596c JB |
9557 | i.op[n].imms->X_add_number += |
9558 | encoding_length (insn_start_frag, insn_start_off, p); | |
7b81dfbb AJ |
9559 | } |
9560 | else if (reloc_type == BFD_RELOC_64) | |
9561 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 9562 | else |
7b81dfbb AJ |
9563 | /* Don't do the adjustment for x86-64, as there |
9564 | the pcrel addressing is relative to the _next_ | |
9565 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 9566 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 9567 | } |
e379e5f3 L |
9568 | else if (align_branch_power) |
9569 | { | |
9570 | switch (reloc_type) | |
9571 | { | |
9572 | case BFD_RELOC_386_TLS_GD: | |
9573 | case BFD_RELOC_386_TLS_LDM: | |
9574 | case BFD_RELOC_386_TLS_IE: | |
9575 | case BFD_RELOC_386_TLS_IE_32: | |
9576 | case BFD_RELOC_386_TLS_GOTIE: | |
9577 | case BFD_RELOC_386_TLS_GOTDESC: | |
9578 | case BFD_RELOC_386_TLS_DESC_CALL: | |
9579 | case BFD_RELOC_X86_64_TLSGD: | |
9580 | case BFD_RELOC_X86_64_TLSLD: | |
9581 | case BFD_RELOC_X86_64_GOTTPOFF: | |
9582 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: | |
9583 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
9584 | i.has_gotpc_tls_reloc = TRUE; | |
9585 | default: | |
9586 | break; | |
9587 | } | |
9588 | } | |
02a86693 L |
9589 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, |
9590 | size, i.op[n].disps, pcrel, | |
9591 | reloc_type); | |
9592 | /* Check for "call/jmp *mem", "mov mem, %reg", | |
9593 | "test %reg, mem" and "binop mem, %reg" where binop | |
9594 | is one of adc, add, and, cmp, or, sbb, sub, xor | |
e60f4d3b L |
9595 | instructions without data prefix. Always generate |
9596 | R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */ | |
9597 | if (i.prefix[DATA_PREFIX] == 0 | |
9598 | && (generate_relax_relocations | |
9599 | || (!object_64bit | |
9600 | && i.rm.mode == 0 | |
9601 | && i.rm.regmem == 5)) | |
0cb4071e L |
9602 | && (i.rm.mode == 2 |
9603 | || (i.rm.mode == 0 && i.rm.regmem == 5)) | |
2ae4c703 | 9604 | && !is_any_vex_encoding(&i.tm) |
02a86693 L |
9605 | && ((i.operands == 1 |
9606 | && i.tm.base_opcode == 0xff | |
9607 | && (i.rm.reg == 2 || i.rm.reg == 4)) | |
9608 | || (i.operands == 2 | |
9609 | && (i.tm.base_opcode == 0x8b | |
9610 | || i.tm.base_opcode == 0x85 | |
2ae4c703 | 9611 | || (i.tm.base_opcode & ~0x38) == 0x03)))) |
02a86693 L |
9612 | { |
9613 | if (object_64bit) | |
9614 | { | |
9615 | fixP->fx_tcbit = i.rex != 0; | |
9616 | if (i.base_reg | |
e968fc9b | 9617 | && (i.base_reg->reg_num == RegIP)) |
02a86693 L |
9618 | fixP->fx_tcbit2 = 1; |
9619 | } | |
9620 | else | |
9621 | fixP->fx_tcbit2 = 1; | |
9622 | } | |
29b0f896 AM |
9623 | } |
9624 | } | |
9625 | } | |
9626 | } | |
252b5132 | 9627 | |
29b0f896 | 9628 | static void |
64e74474 | 9629 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
9630 | { |
9631 | char *p; | |
9632 | unsigned int n; | |
252b5132 | 9633 | |
29b0f896 AM |
9634 | for (n = 0; n < i.operands; n++) |
9635 | { | |
43234a1e L |
9636 | /* Skip SAE/RC Imm operand in EVEX. They are already handled. */ |
9637 | if (i.rounding && (int) n == i.rounding->operand) | |
9638 | continue; | |
9639 | ||
40fb9820 | 9640 | if (operand_type_check (i.types[n], imm)) |
29b0f896 AM |
9641 | { |
9642 | if (i.op[n].imms->X_op == O_constant) | |
9643 | { | |
e205caa7 | 9644 | int size = imm_size (n); |
29b0f896 | 9645 | offsetT val; |
b4cac588 | 9646 | |
29b0f896 AM |
9647 | val = offset_in_range (i.op[n].imms->X_add_number, |
9648 | size); | |
9649 | p = frag_more (size); | |
9650 | md_number_to_chars (p, val, size); | |
9651 | } | |
9652 | else | |
9653 | { | |
9654 | /* Not absolute_section. | |
9655 | Need a 32-bit fixup (don't support 8bit | |
9656 | non-absolute imms). Try to support other | |
9657 | sizes ... */ | |
f86103b7 | 9658 | enum bfd_reloc_code_real reloc_type; |
e205caa7 L |
9659 | int size = imm_size (n); |
9660 | int sign; | |
29b0f896 | 9661 | |
40fb9820 | 9662 | if (i.types[n].bitfield.imm32s |
a7d61044 | 9663 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 9664 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 9665 | sign = 1; |
e205caa7 L |
9666 | else |
9667 | sign = 0; | |
520dc8e8 | 9668 | |
29b0f896 | 9669 | p = frag_more (size); |
d258b828 | 9670 | reloc_type = reloc (size, 0, sign, i.reloc[n]); |
f86103b7 | 9671 | |
2bbd9c25 JJ |
9672 | /* This is tough to explain. We end up with this one if we |
9673 | * have operands that look like | |
9674 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
9675 | * obtain the absolute address of the GOT, and it is strongly | |
9676 | * preferable from a performance point of view to avoid using | |
9677 | * a runtime relocation for this. The actual sequence of | |
9678 | * instructions often look something like: | |
9679 | * | |
9680 | * call .L66 | |
9681 | * .L66: | |
9682 | * popl %ebx | |
9683 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
9684 | * | |
9685 | * The call and pop essentially return the absolute address | |
9686 | * of the label .L66 and store it in %ebx. The linker itself | |
9687 | * will ultimately change the first operand of the addl so | |
9688 | * that %ebx points to the GOT, but to keep things simple, the | |
9689 | * .o file must have this operand set so that it generates not | |
9690 | * the absolute address of .L66, but the absolute address of | |
9691 | * itself. This allows the linker itself simply treat a GOTPC | |
9692 | * relocation as asking for a pcrel offset to the GOT to be | |
9693 | * added in, and the addend of the relocation is stored in the | |
9694 | * operand field for the instruction itself. | |
9695 | * | |
9696 | * Our job here is to fix the operand so that it would add | |
9697 | * the correct offset so that %ebx would point to itself. The | |
9698 | * thing that is tricky is that .-.L66 will point to the | |
9699 | * beginning of the instruction, so we need to further modify | |
9700 | * the operand so that it will point to itself. There are | |
9701 | * other cases where you have something like: | |
9702 | * | |
9703 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
9704 | * | |
9705 | * and here no correction would be required. Internally in | |
9706 | * the assembler we treat operands of this form as not being | |
9707 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
9708 | * whether it would simplify matters to do it this way. Who | |
9709 | * knows. In earlier versions of the PIC patches, the | |
9710 | * pcrel_adjust field was used to store the correction, but | |
9711 | * since the expression is not pcrel, I felt it would be | |
9712 | * confusing to do it this way. */ | |
9713 | ||
d6ab8113 | 9714 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
9715 | || reloc_type == BFD_RELOC_X86_64_32S |
9716 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
9717 | && GOT_symbol |
9718 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
9719 | && (i.op[n].imms->X_op == O_symbol | |
9720 | || (i.op[n].imms->X_op == O_add | |
9721 | && ((symbol_get_value_expression | |
9722 | (i.op[n].imms->X_op_symbol)->X_op) | |
9723 | == O_subtract)))) | |
9724 | { | |
4fa24527 | 9725 | if (!object_64bit) |
d6ab8113 | 9726 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 9727 | else if (size == 4) |
d6ab8113 | 9728 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
9729 | else if (size == 8) |
9730 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
e379e5f3 | 9731 | i.has_gotpc_tls_reloc = TRUE; |
d583596c JB |
9732 | i.op[n].imms->X_add_number += |
9733 | encoding_length (insn_start_frag, insn_start_off, p); | |
29b0f896 | 9734 | } |
29b0f896 AM |
9735 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
9736 | i.op[n].imms, 0, reloc_type); | |
9737 | } | |
9738 | } | |
9739 | } | |
252b5132 RH |
9740 | } |
9741 | \f | |
d182319b JB |
9742 | /* x86_cons_fix_new is called via the expression parsing code when a |
9743 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
d182319b JB |
9744 | static int cons_sign = -1; |
9745 | ||
9746 | void | |
e3bb37b5 | 9747 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
62ebcb5c | 9748 | expressionS *exp, bfd_reloc_code_real_type r) |
d182319b | 9749 | { |
d258b828 | 9750 | r = reloc (len, 0, cons_sign, r); |
d182319b JB |
9751 | |
9752 | #ifdef TE_PE | |
9753 | if (exp->X_op == O_secrel) | |
9754 | { | |
9755 | exp->X_op = O_symbol; | |
9756 | r = BFD_RELOC_32_SECREL; | |
9757 | } | |
9758 | #endif | |
9759 | ||
9760 | fix_new_exp (frag, off, len, exp, 0, r); | |
9761 | } | |
9762 | ||
357d1bd8 L |
9763 | /* Export the ABI address size for use by TC_ADDRESS_BYTES for the |
9764 | purpose of the `.dc.a' internal pseudo-op. */ | |
9765 | ||
9766 | int | |
9767 | x86_address_bytes (void) | |
9768 | { | |
9769 | if ((stdoutput->arch_info->mach & bfd_mach_x64_32)) | |
9770 | return 4; | |
9771 | return stdoutput->arch_info->bits_per_address / 8; | |
9772 | } | |
9773 | ||
d382c579 TG |
9774 | #if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \ |
9775 | || defined (LEX_AT) | |
d258b828 | 9776 | # define lex_got(reloc, adjust, types) NULL |
718ddfc0 | 9777 | #else |
f3c180ae AM |
9778 | /* Parse operands of the form |
9779 | <symbol>@GOTOFF+<nnn> | |
9780 | and similar .plt or .got references. | |
9781 | ||
9782 | If we find one, set up the correct relocation in RELOC and copy the | |
9783 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
9784 | parsing by the calling routine. Return this buffer, and if ADJUST | |
9785 | is non-null set it to the length of the string we removed from the | |
9786 | input line. Otherwise return NULL. */ | |
9787 | static char * | |
91d6fa6a | 9788 | lex_got (enum bfd_reloc_code_real *rel, |
64e74474 | 9789 | int *adjust, |
d258b828 | 9790 | i386_operand_type *types) |
f3c180ae | 9791 | { |
7b81dfbb AJ |
9792 | /* Some of the relocations depend on the size of what field is to |
9793 | be relocated. But in our callers i386_immediate and i386_displacement | |
9794 | we don't yet know the operand size (this will be set by insn | |
9795 | matching). Hence we record the word32 relocation here, | |
9796 | and adjust the reloc according to the real size in reloc(). */ | |
f3c180ae AM |
9797 | static const struct { |
9798 | const char *str; | |
cff8d58a | 9799 | int len; |
4fa24527 | 9800 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 9801 | const i386_operand_type types64; |
f3c180ae | 9802 | } gotrel[] = { |
8ce3d284 | 9803 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
9804 | { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32, |
9805 | BFD_RELOC_SIZE32 }, | |
9806 | OPERAND_TYPE_IMM32_64 }, | |
8ce3d284 | 9807 | #endif |
cff8d58a L |
9808 | { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real, |
9809 | BFD_RELOC_X86_64_PLTOFF64 }, | |
40fb9820 | 9810 | OPERAND_TYPE_IMM64 }, |
cff8d58a L |
9811 | { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32, |
9812 | BFD_RELOC_X86_64_PLT32 }, | |
40fb9820 | 9813 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9814 | { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real, |
9815 | BFD_RELOC_X86_64_GOTPLT64 }, | |
40fb9820 | 9816 | OPERAND_TYPE_IMM64_DISP64 }, |
cff8d58a L |
9817 | { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF, |
9818 | BFD_RELOC_X86_64_GOTOFF64 }, | |
40fb9820 | 9819 | OPERAND_TYPE_IMM64_DISP64 }, |
cff8d58a L |
9820 | { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real, |
9821 | BFD_RELOC_X86_64_GOTPCREL }, | |
40fb9820 | 9822 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9823 | { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD, |
9824 | BFD_RELOC_X86_64_TLSGD }, | |
40fb9820 | 9825 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9826 | { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM, |
9827 | _dummy_first_bfd_reloc_code_real }, | |
40fb9820 | 9828 | OPERAND_TYPE_NONE }, |
cff8d58a L |
9829 | { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real, |
9830 | BFD_RELOC_X86_64_TLSLD }, | |
40fb9820 | 9831 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9832 | { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32, |
9833 | BFD_RELOC_X86_64_GOTTPOFF }, | |
40fb9820 | 9834 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9835 | { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32, |
9836 | BFD_RELOC_X86_64_TPOFF32 }, | |
40fb9820 | 9837 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, |
cff8d58a L |
9838 | { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE, |
9839 | _dummy_first_bfd_reloc_code_real }, | |
40fb9820 | 9840 | OPERAND_TYPE_NONE }, |
cff8d58a L |
9841 | { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32, |
9842 | BFD_RELOC_X86_64_DTPOFF32 }, | |
40fb9820 | 9843 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, |
cff8d58a L |
9844 | { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE, |
9845 | _dummy_first_bfd_reloc_code_real }, | |
40fb9820 | 9846 | OPERAND_TYPE_NONE }, |
cff8d58a L |
9847 | { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE, |
9848 | _dummy_first_bfd_reloc_code_real }, | |
40fb9820 | 9849 | OPERAND_TYPE_NONE }, |
cff8d58a L |
9850 | { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32, |
9851 | BFD_RELOC_X86_64_GOT32 }, | |
40fb9820 | 9852 | OPERAND_TYPE_IMM32_32S_64_DISP32 }, |
cff8d58a L |
9853 | { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC, |
9854 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
40fb9820 | 9855 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
cff8d58a L |
9856 | { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL, |
9857 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
40fb9820 | 9858 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
f3c180ae AM |
9859 | }; |
9860 | char *cp; | |
9861 | unsigned int j; | |
9862 | ||
d382c579 | 9863 | #if defined (OBJ_MAYBE_ELF) |
718ddfc0 JB |
9864 | if (!IS_ELF) |
9865 | return NULL; | |
d382c579 | 9866 | #endif |
718ddfc0 | 9867 | |
f3c180ae | 9868 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 9869 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
9870 | return NULL; |
9871 | ||
47465058 | 9872 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) |
f3c180ae | 9873 | { |
cff8d58a | 9874 | int len = gotrel[j].len; |
28f81592 | 9875 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 9876 | { |
4fa24527 | 9877 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 9878 | { |
28f81592 AM |
9879 | int first, second; |
9880 | char *tmpbuf, *past_reloc; | |
f3c180ae | 9881 | |
91d6fa6a | 9882 | *rel = gotrel[j].rel[object_64bit]; |
f3c180ae | 9883 | |
3956db08 JB |
9884 | if (types) |
9885 | { | |
9886 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
9887 | { |
9888 | types->bitfield.imm32 = 1; | |
9889 | types->bitfield.disp32 = 1; | |
9890 | } | |
3956db08 JB |
9891 | else |
9892 | *types = gotrel[j].types64; | |
9893 | } | |
9894 | ||
8fd4256d | 9895 | if (j != 0 && GOT_symbol == NULL) |
f3c180ae AM |
9896 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); |
9897 | ||
28f81592 | 9898 | /* The length of the first part of our input line. */ |
f3c180ae | 9899 | first = cp - input_line_pointer; |
28f81592 AM |
9900 | |
9901 | /* The second part goes from after the reloc token until | |
67c11a9b | 9902 | (and including) an end_of_line char or comma. */ |
28f81592 | 9903 | past_reloc = cp + 1 + len; |
67c11a9b AM |
9904 | cp = past_reloc; |
9905 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
9906 | ++cp; | |
9907 | second = cp + 1 - past_reloc; | |
28f81592 AM |
9908 | |
9909 | /* Allocate and copy string. The trailing NUL shouldn't | |
9910 | be necessary, but be safe. */ | |
add39d23 | 9911 | tmpbuf = XNEWVEC (char, first + second + 2); |
f3c180ae | 9912 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
9913 | if (second != 0 && *past_reloc != ' ') |
9914 | /* Replace the relocation token with ' ', so that | |
9915 | errors like foo@GOTOFF1 will be detected. */ | |
9916 | tmpbuf[first++] = ' '; | |
af89796a L |
9917 | else |
9918 | /* Increment length by 1 if the relocation token is | |
9919 | removed. */ | |
9920 | len++; | |
9921 | if (adjust) | |
9922 | *adjust = len; | |
0787a12d AM |
9923 | memcpy (tmpbuf + first, past_reloc, second); |
9924 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
9925 | return tmpbuf; |
9926 | } | |
9927 | ||
4fa24527 JB |
9928 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
9929 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
9930 | return NULL; |
9931 | } | |
9932 | } | |
9933 | ||
9934 | /* Might be a symbol version string. Don't as_bad here. */ | |
9935 | return NULL; | |
9936 | } | |
4e4f7c87 | 9937 | #endif |
f3c180ae | 9938 | |
a988325c NC |
9939 | #ifdef TE_PE |
9940 | #ifdef lex_got | |
9941 | #undef lex_got | |
9942 | #endif | |
9943 | /* Parse operands of the form | |
9944 | <symbol>@SECREL32+<nnn> | |
9945 | ||
9946 | If we find one, set up the correct relocation in RELOC and copy the | |
9947 | input string, minus the `@SECREL32' into a malloc'd buffer for | |
9948 | parsing by the calling routine. Return this buffer, and if ADJUST | |
9949 | is non-null set it to the length of the string we removed from the | |
34bca508 L |
9950 | input line. Otherwise return NULL. |
9951 | ||
a988325c NC |
9952 | This function is copied from the ELF version above adjusted for PE targets. */ |
9953 | ||
9954 | static char * | |
9955 | lex_got (enum bfd_reloc_code_real *rel ATTRIBUTE_UNUSED, | |
9956 | int *adjust ATTRIBUTE_UNUSED, | |
d258b828 | 9957 | i386_operand_type *types) |
a988325c NC |
9958 | { |
9959 | static const struct | |
9960 | { | |
9961 | const char *str; | |
9962 | int len; | |
9963 | const enum bfd_reloc_code_real rel[2]; | |
9964 | const i386_operand_type types64; | |
9965 | } | |
9966 | gotrel[] = | |
9967 | { | |
9968 | { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL, | |
9969 | BFD_RELOC_32_SECREL }, | |
9970 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, | |
9971 | }; | |
9972 | ||
9973 | char *cp; | |
9974 | unsigned j; | |
9975 | ||
9976 | for (cp = input_line_pointer; *cp != '@'; cp++) | |
9977 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') | |
9978 | return NULL; | |
9979 | ||
9980 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) | |
9981 | { | |
9982 | int len = gotrel[j].len; | |
9983 | ||
9984 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) | |
9985 | { | |
9986 | if (gotrel[j].rel[object_64bit] != 0) | |
9987 | { | |
9988 | int first, second; | |
9989 | char *tmpbuf, *past_reloc; | |
9990 | ||
9991 | *rel = gotrel[j].rel[object_64bit]; | |
9992 | if (adjust) | |
9993 | *adjust = len; | |
9994 | ||
9995 | if (types) | |
9996 | { | |
9997 | if (flag_code != CODE_64BIT) | |
9998 | { | |
9999 | types->bitfield.imm32 = 1; | |
10000 | types->bitfield.disp32 = 1; | |
10001 | } | |
10002 | else | |
10003 | *types = gotrel[j].types64; | |
10004 | } | |
10005 | ||
10006 | /* The length of the first part of our input line. */ | |
10007 | first = cp - input_line_pointer; | |
10008 | ||
10009 | /* The second part goes from after the reloc token until | |
10010 | (and including) an end_of_line char or comma. */ | |
10011 | past_reloc = cp + 1 + len; | |
10012 | cp = past_reloc; | |
10013 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
10014 | ++cp; | |
10015 | second = cp + 1 - past_reloc; | |
10016 | ||
10017 | /* Allocate and copy string. The trailing NUL shouldn't | |
10018 | be necessary, but be safe. */ | |
add39d23 | 10019 | tmpbuf = XNEWVEC (char, first + second + 2); |
a988325c NC |
10020 | memcpy (tmpbuf, input_line_pointer, first); |
10021 | if (second != 0 && *past_reloc != ' ') | |
10022 | /* Replace the relocation token with ' ', so that | |
10023 | errors like foo@SECLREL321 will be detected. */ | |
10024 | tmpbuf[first++] = ' '; | |
10025 | memcpy (tmpbuf + first, past_reloc, second); | |
10026 | tmpbuf[first + second] = '\0'; | |
10027 | return tmpbuf; | |
10028 | } | |
10029 | ||
10030 | as_bad (_("@%s reloc is not supported with %d-bit output format"), | |
10031 | gotrel[j].str, 1 << (5 + object_64bit)); | |
10032 | return NULL; | |
10033 | } | |
10034 | } | |
10035 | ||
10036 | /* Might be a symbol version string. Don't as_bad here. */ | |
10037 | return NULL; | |
10038 | } | |
10039 | ||
10040 | #endif /* TE_PE */ | |
10041 | ||
62ebcb5c | 10042 | bfd_reloc_code_real_type |
e3bb37b5 | 10043 | x86_cons (expressionS *exp, int size) |
f3c180ae | 10044 | { |
62ebcb5c AM |
10045 | bfd_reloc_code_real_type got_reloc = NO_RELOC; |
10046 | ||
ee86248c JB |
10047 | intel_syntax = -intel_syntax; |
10048 | ||
3c7b9c2c | 10049 | exp->X_md = 0; |
4fa24527 | 10050 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
10051 | { |
10052 | /* Handle @GOTOFF and the like in an expression. */ | |
10053 | char *save; | |
10054 | char *gotfree_input_line; | |
4a57f2cf | 10055 | int adjust = 0; |
f3c180ae AM |
10056 | |
10057 | save = input_line_pointer; | |
d258b828 | 10058 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
10059 | if (gotfree_input_line) |
10060 | input_line_pointer = gotfree_input_line; | |
10061 | ||
10062 | expression (exp); | |
10063 | ||
10064 | if (gotfree_input_line) | |
10065 | { | |
10066 | /* expression () has merrily parsed up to the end of line, | |
10067 | or a comma - in the wrong buffer. Transfer how far | |
10068 | input_line_pointer has moved to the right buffer. */ | |
10069 | input_line_pointer = (save | |
10070 | + (input_line_pointer - gotfree_input_line) | |
10071 | + adjust); | |
10072 | free (gotfree_input_line); | |
3992d3b7 AM |
10073 | if (exp->X_op == O_constant |
10074 | || exp->X_op == O_absent | |
10075 | || exp->X_op == O_illegal | |
0398aac5 | 10076 | || exp->X_op == O_register |
3992d3b7 AM |
10077 | || exp->X_op == O_big) |
10078 | { | |
10079 | char c = *input_line_pointer; | |
10080 | *input_line_pointer = 0; | |
10081 | as_bad (_("missing or invalid expression `%s'"), save); | |
10082 | *input_line_pointer = c; | |
10083 | } | |
b9519cfe L |
10084 | else if ((got_reloc == BFD_RELOC_386_PLT32 |
10085 | || got_reloc == BFD_RELOC_X86_64_PLT32) | |
10086 | && exp->X_op != O_symbol) | |
10087 | { | |
10088 | char c = *input_line_pointer; | |
10089 | *input_line_pointer = 0; | |
10090 | as_bad (_("invalid PLT expression `%s'"), save); | |
10091 | *input_line_pointer = c; | |
10092 | } | |
f3c180ae AM |
10093 | } |
10094 | } | |
10095 | else | |
10096 | expression (exp); | |
ee86248c JB |
10097 | |
10098 | intel_syntax = -intel_syntax; | |
10099 | ||
10100 | if (intel_syntax) | |
10101 | i386_intel_simplify (exp); | |
62ebcb5c AM |
10102 | |
10103 | return got_reloc; | |
f3c180ae | 10104 | } |
f3c180ae | 10105 | |
9f32dd5b L |
10106 | static void |
10107 | signed_cons (int size) | |
6482c264 | 10108 | { |
d182319b JB |
10109 | if (flag_code == CODE_64BIT) |
10110 | cons_sign = 1; | |
10111 | cons (size); | |
10112 | cons_sign = -1; | |
6482c264 NC |
10113 | } |
10114 | ||
d182319b | 10115 | #ifdef TE_PE |
6482c264 | 10116 | static void |
7016a5d5 | 10117 | pe_directive_secrel (int dummy ATTRIBUTE_UNUSED) |
6482c264 NC |
10118 | { |
10119 | expressionS exp; | |
10120 | ||
10121 | do | |
10122 | { | |
10123 | expression (&exp); | |
10124 | if (exp.X_op == O_symbol) | |
10125 | exp.X_op = O_secrel; | |
10126 | ||
10127 | emit_expr (&exp, 4); | |
10128 | } | |
10129 | while (*input_line_pointer++ == ','); | |
10130 | ||
10131 | input_line_pointer--; | |
10132 | demand_empty_rest_of_line (); | |
10133 | } | |
6482c264 NC |
10134 | #endif |
10135 | ||
43234a1e L |
10136 | /* Handle Vector operations. */ |
10137 | ||
10138 | static char * | |
10139 | check_VecOperations (char *op_string, char *op_end) | |
10140 | { | |
10141 | const reg_entry *mask; | |
10142 | const char *saved; | |
10143 | char *end_op; | |
10144 | ||
10145 | while (*op_string | |
10146 | && (op_end == NULL || op_string < op_end)) | |
10147 | { | |
10148 | saved = op_string; | |
10149 | if (*op_string == '{') | |
10150 | { | |
10151 | op_string++; | |
10152 | ||
10153 | /* Check broadcasts. */ | |
10154 | if (strncmp (op_string, "1to", 3) == 0) | |
10155 | { | |
10156 | int bcst_type; | |
10157 | ||
10158 | if (i.broadcast) | |
10159 | goto duplicated_vec_op; | |
10160 | ||
10161 | op_string += 3; | |
10162 | if (*op_string == '8') | |
8e6e0792 | 10163 | bcst_type = 8; |
b28d1bda | 10164 | else if (*op_string == '4') |
8e6e0792 | 10165 | bcst_type = 4; |
b28d1bda | 10166 | else if (*op_string == '2') |
8e6e0792 | 10167 | bcst_type = 2; |
43234a1e L |
10168 | else if (*op_string == '1' |
10169 | && *(op_string+1) == '6') | |
10170 | { | |
8e6e0792 | 10171 | bcst_type = 16; |
43234a1e L |
10172 | op_string++; |
10173 | } | |
10174 | else | |
10175 | { | |
10176 | as_bad (_("Unsupported broadcast: `%s'"), saved); | |
10177 | return NULL; | |
10178 | } | |
10179 | op_string++; | |
10180 | ||
10181 | broadcast_op.type = bcst_type; | |
10182 | broadcast_op.operand = this_operand; | |
1f75763a | 10183 | broadcast_op.bytes = 0; |
43234a1e L |
10184 | i.broadcast = &broadcast_op; |
10185 | } | |
10186 | /* Check masking operation. */ | |
10187 | else if ((mask = parse_register (op_string, &end_op)) != NULL) | |
10188 | { | |
10189 | /* k0 can't be used for write mask. */ | |
f74a6307 | 10190 | if (mask->reg_type.bitfield.class != RegMask || !mask->reg_num) |
43234a1e | 10191 | { |
6d2cd6b2 JB |
10192 | as_bad (_("`%s%s' can't be used for write mask"), |
10193 | register_prefix, mask->reg_name); | |
43234a1e L |
10194 | return NULL; |
10195 | } | |
10196 | ||
10197 | if (!i.mask) | |
10198 | { | |
10199 | mask_op.mask = mask; | |
10200 | mask_op.zeroing = 0; | |
10201 | mask_op.operand = this_operand; | |
10202 | i.mask = &mask_op; | |
10203 | } | |
10204 | else | |
10205 | { | |
10206 | if (i.mask->mask) | |
10207 | goto duplicated_vec_op; | |
10208 | ||
10209 | i.mask->mask = mask; | |
10210 | ||
10211 | /* Only "{z}" is allowed here. No need to check | |
10212 | zeroing mask explicitly. */ | |
10213 | if (i.mask->operand != this_operand) | |
10214 | { | |
10215 | as_bad (_("invalid write mask `%s'"), saved); | |
10216 | return NULL; | |
10217 | } | |
10218 | } | |
10219 | ||
10220 | op_string = end_op; | |
10221 | } | |
10222 | /* Check zeroing-flag for masking operation. */ | |
10223 | else if (*op_string == 'z') | |
10224 | { | |
10225 | if (!i.mask) | |
10226 | { | |
10227 | mask_op.mask = NULL; | |
10228 | mask_op.zeroing = 1; | |
10229 | mask_op.operand = this_operand; | |
10230 | i.mask = &mask_op; | |
10231 | } | |
10232 | else | |
10233 | { | |
10234 | if (i.mask->zeroing) | |
10235 | { | |
10236 | duplicated_vec_op: | |
10237 | as_bad (_("duplicated `%s'"), saved); | |
10238 | return NULL; | |
10239 | } | |
10240 | ||
10241 | i.mask->zeroing = 1; | |
10242 | ||
10243 | /* Only "{%k}" is allowed here. No need to check mask | |
10244 | register explicitly. */ | |
10245 | if (i.mask->operand != this_operand) | |
10246 | { | |
10247 | as_bad (_("invalid zeroing-masking `%s'"), | |
10248 | saved); | |
10249 | return NULL; | |
10250 | } | |
10251 | } | |
10252 | ||
10253 | op_string++; | |
10254 | } | |
10255 | else | |
10256 | goto unknown_vec_op; | |
10257 | ||
10258 | if (*op_string != '}') | |
10259 | { | |
10260 | as_bad (_("missing `}' in `%s'"), saved); | |
10261 | return NULL; | |
10262 | } | |
10263 | op_string++; | |
0ba3a731 L |
10264 | |
10265 | /* Strip whitespace since the addition of pseudo prefixes | |
10266 | changed how the scrubber treats '{'. */ | |
10267 | if (is_space_char (*op_string)) | |
10268 | ++op_string; | |
10269 | ||
43234a1e L |
10270 | continue; |
10271 | } | |
10272 | unknown_vec_op: | |
10273 | /* We don't know this one. */ | |
10274 | as_bad (_("unknown vector operation: `%s'"), saved); | |
10275 | return NULL; | |
10276 | } | |
10277 | ||
6d2cd6b2 JB |
10278 | if (i.mask && i.mask->zeroing && !i.mask->mask) |
10279 | { | |
10280 | as_bad (_("zeroing-masking only allowed with write mask")); | |
10281 | return NULL; | |
10282 | } | |
10283 | ||
43234a1e L |
10284 | return op_string; |
10285 | } | |
10286 | ||
252b5132 | 10287 | static int |
70e41ade | 10288 | i386_immediate (char *imm_start) |
252b5132 RH |
10289 | { |
10290 | char *save_input_line_pointer; | |
f3c180ae | 10291 | char *gotfree_input_line; |
252b5132 | 10292 | segT exp_seg = 0; |
47926f60 | 10293 | expressionS *exp; |
40fb9820 L |
10294 | i386_operand_type types; |
10295 | ||
0dfbf9d7 | 10296 | operand_type_set (&types, ~0); |
252b5132 RH |
10297 | |
10298 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
10299 | { | |
31b2323c L |
10300 | as_bad (_("at most %d immediate operands are allowed"), |
10301 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
10302 | return 0; |
10303 | } | |
10304 | ||
10305 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 10306 | i.op[this_operand].imms = exp; |
252b5132 RH |
10307 | |
10308 | if (is_space_char (*imm_start)) | |
10309 | ++imm_start; | |
10310 | ||
10311 | save_input_line_pointer = input_line_pointer; | |
10312 | input_line_pointer = imm_start; | |
10313 | ||
d258b828 | 10314 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
10315 | if (gotfree_input_line) |
10316 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
10317 | |
10318 | exp_seg = expression (exp); | |
10319 | ||
83183c0c | 10320 | SKIP_WHITESPACE (); |
43234a1e L |
10321 | |
10322 | /* Handle vector operations. */ | |
10323 | if (*input_line_pointer == '{') | |
10324 | { | |
10325 | input_line_pointer = check_VecOperations (input_line_pointer, | |
10326 | NULL); | |
10327 | if (input_line_pointer == NULL) | |
10328 | return 0; | |
10329 | } | |
10330 | ||
252b5132 | 10331 | if (*input_line_pointer) |
f3c180ae | 10332 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
10333 | |
10334 | input_line_pointer = save_input_line_pointer; | |
f3c180ae | 10335 | if (gotfree_input_line) |
ee86248c JB |
10336 | { |
10337 | free (gotfree_input_line); | |
10338 | ||
10339 | if (exp->X_op == O_constant || exp->X_op == O_register) | |
10340 | exp->X_op = O_illegal; | |
10341 | } | |
10342 | ||
10343 | return i386_finalize_immediate (exp_seg, exp, types, imm_start); | |
10344 | } | |
252b5132 | 10345 | |
ee86248c JB |
10346 | static int |
10347 | i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
10348 | i386_operand_type types, const char *imm_start) | |
10349 | { | |
10350 | if (exp->X_op == O_absent || exp->X_op == O_illegal || exp->X_op == O_big) | |
252b5132 | 10351 | { |
313c53d1 L |
10352 | if (imm_start) |
10353 | as_bad (_("missing or invalid immediate expression `%s'"), | |
10354 | imm_start); | |
3992d3b7 | 10355 | return 0; |
252b5132 | 10356 | } |
3e73aa7c | 10357 | else if (exp->X_op == O_constant) |
252b5132 | 10358 | { |
47926f60 | 10359 | /* Size it properly later. */ |
40fb9820 | 10360 | i.types[this_operand].bitfield.imm64 = 1; |
13f864ae L |
10361 | /* If not 64bit, sign extend val. */ |
10362 | if (flag_code != CODE_64BIT | |
4eed87de AM |
10363 | && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0) |
10364 | exp->X_add_number | |
10365 | = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
252b5132 | 10366 | } |
4c63da97 | 10367 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 10368 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 10369 | && exp_seg != absolute_section |
47926f60 | 10370 | && exp_seg != text_section |
24eab124 AM |
10371 | && exp_seg != data_section |
10372 | && exp_seg != bss_section | |
10373 | && exp_seg != undefined_section | |
f86103b7 | 10374 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 10375 | { |
d0b47220 | 10376 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
10377 | return 0; |
10378 | } | |
10379 | #endif | |
a841bdf5 | 10380 | else if (!intel_syntax && exp_seg == reg_section) |
bb8f5920 | 10381 | { |
313c53d1 L |
10382 | if (imm_start) |
10383 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
bb8f5920 L |
10384 | return 0; |
10385 | } | |
252b5132 RH |
10386 | else |
10387 | { | |
10388 | /* This is an address. The size of the address will be | |
24eab124 | 10389 | determined later, depending on destination register, |
3e73aa7c | 10390 | suffix, or the default for the section. */ |
40fb9820 L |
10391 | i.types[this_operand].bitfield.imm8 = 1; |
10392 | i.types[this_operand].bitfield.imm16 = 1; | |
10393 | i.types[this_operand].bitfield.imm32 = 1; | |
10394 | i.types[this_operand].bitfield.imm32s = 1; | |
10395 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
10396 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
10397 | types); | |
252b5132 RH |
10398 | } |
10399 | ||
10400 | return 1; | |
10401 | } | |
10402 | ||
551c1ca1 | 10403 | static char * |
e3bb37b5 | 10404 | i386_scale (char *scale) |
252b5132 | 10405 | { |
551c1ca1 AM |
10406 | offsetT val; |
10407 | char *save = input_line_pointer; | |
252b5132 | 10408 | |
551c1ca1 AM |
10409 | input_line_pointer = scale; |
10410 | val = get_absolute_expression (); | |
10411 | ||
10412 | switch (val) | |
252b5132 | 10413 | { |
551c1ca1 | 10414 | case 1: |
252b5132 RH |
10415 | i.log2_scale_factor = 0; |
10416 | break; | |
551c1ca1 | 10417 | case 2: |
252b5132 RH |
10418 | i.log2_scale_factor = 1; |
10419 | break; | |
551c1ca1 | 10420 | case 4: |
252b5132 RH |
10421 | i.log2_scale_factor = 2; |
10422 | break; | |
551c1ca1 | 10423 | case 8: |
252b5132 RH |
10424 | i.log2_scale_factor = 3; |
10425 | break; | |
10426 | default: | |
a724f0f4 JB |
10427 | { |
10428 | char sep = *input_line_pointer; | |
10429 | ||
10430 | *input_line_pointer = '\0'; | |
10431 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
10432 | scale); | |
10433 | *input_line_pointer = sep; | |
10434 | input_line_pointer = save; | |
10435 | return NULL; | |
10436 | } | |
252b5132 | 10437 | } |
29b0f896 | 10438 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
10439 | { |
10440 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 10441 | 1 << i.log2_scale_factor); |
252b5132 | 10442 | i.log2_scale_factor = 0; |
252b5132 | 10443 | } |
551c1ca1 AM |
10444 | scale = input_line_pointer; |
10445 | input_line_pointer = save; | |
10446 | return scale; | |
252b5132 RH |
10447 | } |
10448 | ||
252b5132 | 10449 | static int |
e3bb37b5 | 10450 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 10451 | { |
29b0f896 | 10452 | expressionS *exp; |
252b5132 RH |
10453 | segT exp_seg = 0; |
10454 | char *save_input_line_pointer; | |
f3c180ae | 10455 | char *gotfree_input_line; |
40fb9820 L |
10456 | int override; |
10457 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 10458 | int ret; |
252b5132 | 10459 | |
31b2323c L |
10460 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
10461 | { | |
10462 | as_bad (_("at most %d displacement operands are allowed"), | |
10463 | MAX_MEMORY_OPERANDS); | |
10464 | return 0; | |
10465 | } | |
10466 | ||
0dfbf9d7 | 10467 | operand_type_set (&bigdisp, 0); |
6f2f06be | 10468 | if (i.jumpabsolute |
48bcea9f | 10469 | || i.types[this_operand].bitfield.baseindex |
0cfa3eb3 JB |
10470 | || (current_templates->start->opcode_modifier.jump != JUMP |
10471 | && current_templates->start->opcode_modifier.jump != JUMP_DWORD)) | |
e05278af | 10472 | { |
48bcea9f | 10473 | i386_addressing_mode (); |
e05278af | 10474 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
10475 | if (flag_code == CODE_64BIT) |
10476 | { | |
10477 | if (!override) | |
10478 | { | |
10479 | bigdisp.bitfield.disp32s = 1; | |
10480 | bigdisp.bitfield.disp64 = 1; | |
10481 | } | |
48bcea9f JB |
10482 | else |
10483 | bigdisp.bitfield.disp32 = 1; | |
40fb9820 L |
10484 | } |
10485 | else if ((flag_code == CODE_16BIT) ^ override) | |
40fb9820 | 10486 | bigdisp.bitfield.disp16 = 1; |
48bcea9f JB |
10487 | else |
10488 | bigdisp.bitfield.disp32 = 1; | |
e05278af JB |
10489 | } |
10490 | else | |
10491 | { | |
376cd056 JB |
10492 | /* For PC-relative branches, the width of the displacement may be |
10493 | dependent upon data size, but is never dependent upon address size. | |
10494 | Also make sure to not unintentionally match against a non-PC-relative | |
10495 | branch template. */ | |
10496 | static templates aux_templates; | |
10497 | const insn_template *t = current_templates->start; | |
10498 | bfd_boolean has_intel64 = FALSE; | |
10499 | ||
10500 | aux_templates.start = t; | |
10501 | while (++t < current_templates->end) | |
10502 | { | |
10503 | if (t->opcode_modifier.jump | |
10504 | != current_templates->start->opcode_modifier.jump) | |
10505 | break; | |
4b5aaf5f | 10506 | if ((t->opcode_modifier.isa64 >= INTEL64)) |
376cd056 JB |
10507 | has_intel64 = TRUE; |
10508 | } | |
10509 | if (t < current_templates->end) | |
10510 | { | |
10511 | aux_templates.end = t; | |
10512 | current_templates = &aux_templates; | |
10513 | } | |
10514 | ||
e05278af | 10515 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
10516 | if (flag_code == CODE_64BIT) |
10517 | { | |
376cd056 JB |
10518 | if ((override || i.suffix == WORD_MNEM_SUFFIX) |
10519 | && (!intel64 || !has_intel64)) | |
40fb9820 L |
10520 | bigdisp.bitfield.disp16 = 1; |
10521 | else | |
48bcea9f | 10522 | bigdisp.bitfield.disp32s = 1; |
40fb9820 L |
10523 | } |
10524 | else | |
e05278af JB |
10525 | { |
10526 | if (!override) | |
10527 | override = (i.suffix == (flag_code != CODE_16BIT | |
10528 | ? WORD_MNEM_SUFFIX | |
10529 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
10530 | bigdisp.bitfield.disp32 = 1; |
10531 | if ((flag_code == CODE_16BIT) ^ override) | |
10532 | { | |
10533 | bigdisp.bitfield.disp32 = 0; | |
10534 | bigdisp.bitfield.disp16 = 1; | |
10535 | } | |
e05278af | 10536 | } |
e05278af | 10537 | } |
c6fb90c8 L |
10538 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
10539 | bigdisp); | |
252b5132 RH |
10540 | |
10541 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 10542 | i.op[this_operand].disps = exp; |
252b5132 RH |
10543 | i.disp_operands++; |
10544 | save_input_line_pointer = input_line_pointer; | |
10545 | input_line_pointer = disp_start; | |
10546 | END_STRING_AND_SAVE (disp_end); | |
10547 | ||
10548 | #ifndef GCC_ASM_O_HACK | |
10549 | #define GCC_ASM_O_HACK 0 | |
10550 | #endif | |
10551 | #if GCC_ASM_O_HACK | |
10552 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 10553 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 10554 | && displacement_string_end[-1] == '+') |
252b5132 RH |
10555 | { |
10556 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
10557 | constraint within gcc asm statements. |
10558 | For instance: | |
10559 | ||
10560 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
10561 | __asm__ __volatile__ ( \ | |
10562 | "movw %w2,%0\n\t" \ | |
10563 | "movw %w1,2+%0\n\t" \ | |
10564 | "rorl $16,%1\n\t" \ | |
10565 | "movb %b1,4+%0\n\t" \ | |
10566 | "movb %4,5+%0\n\t" \ | |
10567 | "movb $0,6+%0\n\t" \ | |
10568 | "movb %h1,7+%0\n\t" \ | |
10569 | "rorl $16,%1" \ | |
10570 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
10571 | ||
10572 | This works great except that the output assembler ends | |
10573 | up looking a bit weird if it turns out that there is | |
10574 | no offset. You end up producing code that looks like: | |
10575 | ||
10576 | #APP | |
10577 | movw $235,(%eax) | |
10578 | movw %dx,2+(%eax) | |
10579 | rorl $16,%edx | |
10580 | movb %dl,4+(%eax) | |
10581 | movb $137,5+(%eax) | |
10582 | movb $0,6+(%eax) | |
10583 | movb %dh,7+(%eax) | |
10584 | rorl $16,%edx | |
10585 | #NO_APP | |
10586 | ||
47926f60 | 10587 | So here we provide the missing zero. */ |
24eab124 AM |
10588 | |
10589 | *displacement_string_end = '0'; | |
252b5132 RH |
10590 | } |
10591 | #endif | |
d258b828 | 10592 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
10593 | if (gotfree_input_line) |
10594 | input_line_pointer = gotfree_input_line; | |
252b5132 | 10595 | |
24eab124 | 10596 | exp_seg = expression (exp); |
252b5132 | 10597 | |
636c26b0 AM |
10598 | SKIP_WHITESPACE (); |
10599 | if (*input_line_pointer) | |
10600 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
10601 | #if GCC_ASM_O_HACK | |
10602 | RESTORE_END_STRING (disp_end + 1); | |
10603 | #endif | |
636c26b0 | 10604 | input_line_pointer = save_input_line_pointer; |
636c26b0 | 10605 | if (gotfree_input_line) |
ee86248c JB |
10606 | { |
10607 | free (gotfree_input_line); | |
10608 | ||
10609 | if (exp->X_op == O_constant || exp->X_op == O_register) | |
10610 | exp->X_op = O_illegal; | |
10611 | } | |
10612 | ||
10613 | ret = i386_finalize_displacement (exp_seg, exp, types, disp_start); | |
10614 | ||
10615 | RESTORE_END_STRING (disp_end); | |
10616 | ||
10617 | return ret; | |
10618 | } | |
10619 | ||
10620 | static int | |
10621 | i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
10622 | i386_operand_type types, const char *disp_start) | |
10623 | { | |
10624 | i386_operand_type bigdisp; | |
10625 | int ret = 1; | |
636c26b0 | 10626 | |
24eab124 AM |
10627 | /* We do this to make sure that the section symbol is in |
10628 | the symbol table. We will ultimately change the relocation | |
47926f60 | 10629 | to be relative to the beginning of the section. */ |
1ae12ab7 | 10630 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
10631 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
10632 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 10633 | { |
636c26b0 | 10634 | if (exp->X_op != O_symbol) |
3992d3b7 | 10635 | goto inv_disp; |
636c26b0 | 10636 | |
e5cb08ac | 10637 | if (S_IS_LOCAL (exp->X_add_symbol) |
c64efb4b L |
10638 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section |
10639 | && S_GET_SEGMENT (exp->X_add_symbol) != expr_section) | |
24eab124 | 10640 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); |
24eab124 AM |
10641 | exp->X_op = O_subtract; |
10642 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 10643 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 10644 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
10645 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
10646 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 10647 | else |
29b0f896 | 10648 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 10649 | } |
252b5132 | 10650 | |
3992d3b7 AM |
10651 | else if (exp->X_op == O_absent |
10652 | || exp->X_op == O_illegal | |
ee86248c | 10653 | || exp->X_op == O_big) |
2daf4fd8 | 10654 | { |
3992d3b7 AM |
10655 | inv_disp: |
10656 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 10657 | disp_start); |
3992d3b7 | 10658 | ret = 0; |
2daf4fd8 AM |
10659 | } |
10660 | ||
0e1147d9 L |
10661 | else if (flag_code == CODE_64BIT |
10662 | && !i.prefix[ADDR_PREFIX] | |
10663 | && exp->X_op == O_constant) | |
10664 | { | |
10665 | /* Since displacement is signed extended to 64bit, don't allow | |
10666 | disp32 and turn off disp32s if they are out of range. */ | |
10667 | i.types[this_operand].bitfield.disp32 = 0; | |
10668 | if (!fits_in_signed_long (exp->X_add_number)) | |
10669 | { | |
10670 | i.types[this_operand].bitfield.disp32s = 0; | |
10671 | if (i.types[this_operand].bitfield.baseindex) | |
10672 | { | |
10673 | as_bad (_("0x%lx out range of signed 32bit displacement"), | |
10674 | (long) exp->X_add_number); | |
10675 | ret = 0; | |
10676 | } | |
10677 | } | |
10678 | } | |
10679 | ||
4c63da97 | 10680 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
3992d3b7 AM |
10681 | else if (exp->X_op != O_constant |
10682 | && OUTPUT_FLAVOR == bfd_target_aout_flavour | |
10683 | && exp_seg != absolute_section | |
10684 | && exp_seg != text_section | |
10685 | && exp_seg != data_section | |
10686 | && exp_seg != bss_section | |
10687 | && exp_seg != undefined_section | |
10688 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 10689 | { |
d0b47220 | 10690 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 10691 | ret = 0; |
24eab124 | 10692 | } |
252b5132 | 10693 | #endif |
3956db08 | 10694 | |
48bcea9f JB |
10695 | if (current_templates->start->opcode_modifier.jump == JUMP_BYTE |
10696 | /* Constants get taken care of by optimize_disp(). */ | |
10697 | && exp->X_op != O_constant) | |
10698 | i.types[this_operand].bitfield.disp8 = 1; | |
10699 | ||
40fb9820 L |
10700 | /* Check if this is a displacement only operand. */ |
10701 | bigdisp = i.types[this_operand]; | |
10702 | bigdisp.bitfield.disp8 = 0; | |
10703 | bigdisp.bitfield.disp16 = 0; | |
10704 | bigdisp.bitfield.disp32 = 0; | |
10705 | bigdisp.bitfield.disp32s = 0; | |
10706 | bigdisp.bitfield.disp64 = 0; | |
0dfbf9d7 | 10707 | if (operand_type_all_zero (&bigdisp)) |
c6fb90c8 L |
10708 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
10709 | types); | |
3956db08 | 10710 | |
3992d3b7 | 10711 | return ret; |
252b5132 RH |
10712 | } |
10713 | ||
2abc2bec JB |
10714 | /* Return the active addressing mode, taking address override and |
10715 | registers forming the address into consideration. Update the | |
10716 | address override prefix if necessary. */ | |
47926f60 | 10717 | |
2abc2bec JB |
10718 | static enum flag_code |
10719 | i386_addressing_mode (void) | |
252b5132 | 10720 | { |
be05d201 L |
10721 | enum flag_code addr_mode; |
10722 | ||
10723 | if (i.prefix[ADDR_PREFIX]) | |
10724 | addr_mode = flag_code == CODE_32BIT ? CODE_16BIT : CODE_32BIT; | |
a23b33b3 JB |
10725 | else if (flag_code == CODE_16BIT |
10726 | && current_templates->start->cpu_flags.bitfield.cpumpx | |
10727 | /* Avoid replacing the "16-bit addressing not allowed" diagnostic | |
10728 | from md_assemble() by "is not a valid base/index expression" | |
10729 | when there is a base and/or index. */ | |
10730 | && !i.types[this_operand].bitfield.baseindex) | |
10731 | { | |
10732 | /* MPX insn memory operands with neither base nor index must be forced | |
10733 | to use 32-bit addressing in 16-bit mode. */ | |
10734 | addr_mode = CODE_32BIT; | |
10735 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
10736 | ++i.prefixes; | |
10737 | gas_assert (!i.types[this_operand].bitfield.disp16); | |
10738 | gas_assert (!i.types[this_operand].bitfield.disp32); | |
10739 | } | |
be05d201 L |
10740 | else |
10741 | { | |
10742 | addr_mode = flag_code; | |
10743 | ||
24eab124 | 10744 | #if INFER_ADDR_PREFIX |
be05d201 L |
10745 | if (i.mem_operands == 0) |
10746 | { | |
10747 | /* Infer address prefix from the first memory operand. */ | |
10748 | const reg_entry *addr_reg = i.base_reg; | |
10749 | ||
10750 | if (addr_reg == NULL) | |
10751 | addr_reg = i.index_reg; | |
eecb386c | 10752 | |
be05d201 L |
10753 | if (addr_reg) |
10754 | { | |
e968fc9b | 10755 | if (addr_reg->reg_type.bitfield.dword) |
be05d201 L |
10756 | addr_mode = CODE_32BIT; |
10757 | else if (flag_code != CODE_64BIT | |
dc821c5f | 10758 | && addr_reg->reg_type.bitfield.word) |
be05d201 L |
10759 | addr_mode = CODE_16BIT; |
10760 | ||
10761 | if (addr_mode != flag_code) | |
10762 | { | |
10763 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
10764 | i.prefixes += 1; | |
10765 | /* Change the size of any displacement too. At most one | |
10766 | of Disp16 or Disp32 is set. | |
10767 | FIXME. There doesn't seem to be any real need for | |
10768 | separate Disp16 and Disp32 flags. The same goes for | |
10769 | Imm16 and Imm32. Removing them would probably clean | |
10770 | up the code quite a lot. */ | |
10771 | if (flag_code != CODE_64BIT | |
10772 | && (i.types[this_operand].bitfield.disp16 | |
10773 | || i.types[this_operand].bitfield.disp32)) | |
10774 | i.types[this_operand] | |
10775 | = operand_type_xor (i.types[this_operand], disp16_32); | |
10776 | } | |
10777 | } | |
10778 | } | |
24eab124 | 10779 | #endif |
be05d201 L |
10780 | } |
10781 | ||
2abc2bec JB |
10782 | return addr_mode; |
10783 | } | |
10784 | ||
10785 | /* Make sure the memory operand we've been dealt is valid. | |
10786 | Return 1 on success, 0 on a failure. */ | |
10787 | ||
10788 | static int | |
10789 | i386_index_check (const char *operand_string) | |
10790 | { | |
10791 | const char *kind = "base/index"; | |
10792 | enum flag_code addr_mode = i386_addressing_mode (); | |
10793 | ||
fc0763e6 | 10794 | if (current_templates->start->opcode_modifier.isstring |
c3949f43 | 10795 | && !current_templates->start->cpu_flags.bitfield.cpupadlock |
fc0763e6 JB |
10796 | && (current_templates->end[-1].opcode_modifier.isstring |
10797 | || i.mem_operands)) | |
10798 | { | |
10799 | /* Memory operands of string insns are special in that they only allow | |
10800 | a single register (rDI, rSI, or rBX) as their memory address. */ | |
be05d201 L |
10801 | const reg_entry *expected_reg; |
10802 | static const char *di_si[][2] = | |
10803 | { | |
10804 | { "esi", "edi" }, | |
10805 | { "si", "di" }, | |
10806 | { "rsi", "rdi" } | |
10807 | }; | |
10808 | static const char *bx[] = { "ebx", "bx", "rbx" }; | |
fc0763e6 JB |
10809 | |
10810 | kind = "string address"; | |
10811 | ||
8325cc63 | 10812 | if (current_templates->start->opcode_modifier.repprefixok) |
fc0763e6 | 10813 | { |
51c8edf6 JB |
10814 | int es_op = current_templates->end[-1].opcode_modifier.isstring |
10815 | - IS_STRING_ES_OP0; | |
10816 | int op = 0; | |
fc0763e6 | 10817 | |
51c8edf6 | 10818 | if (!current_templates->end[-1].operand_types[0].bitfield.baseindex |
fc0763e6 JB |
10819 | || ((!i.mem_operands != !intel_syntax) |
10820 | && current_templates->end[-1].operand_types[1] | |
10821 | .bitfield.baseindex)) | |
51c8edf6 JB |
10822 | op = 1; |
10823 | expected_reg = hash_find (reg_hash, di_si[addr_mode][op == es_op]); | |
fc0763e6 JB |
10824 | } |
10825 | else | |
be05d201 | 10826 | expected_reg = hash_find (reg_hash, bx[addr_mode]); |
fc0763e6 | 10827 | |
be05d201 L |
10828 | if (i.base_reg != expected_reg |
10829 | || i.index_reg | |
fc0763e6 | 10830 | || operand_type_check (i.types[this_operand], disp)) |
fc0763e6 | 10831 | { |
be05d201 L |
10832 | /* The second memory operand must have the same size as |
10833 | the first one. */ | |
10834 | if (i.mem_operands | |
10835 | && i.base_reg | |
10836 | && !((addr_mode == CODE_64BIT | |
dc821c5f | 10837 | && i.base_reg->reg_type.bitfield.qword) |
be05d201 | 10838 | || (addr_mode == CODE_32BIT |
dc821c5f JB |
10839 | ? i.base_reg->reg_type.bitfield.dword |
10840 | : i.base_reg->reg_type.bitfield.word))) | |
be05d201 L |
10841 | goto bad_address; |
10842 | ||
fc0763e6 JB |
10843 | as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"), |
10844 | operand_string, | |
10845 | intel_syntax ? '[' : '(', | |
10846 | register_prefix, | |
be05d201 | 10847 | expected_reg->reg_name, |
fc0763e6 | 10848 | intel_syntax ? ']' : ')'); |
be05d201 | 10849 | return 1; |
fc0763e6 | 10850 | } |
be05d201 L |
10851 | else |
10852 | return 1; | |
10853 | ||
dc1e8a47 | 10854 | bad_address: |
be05d201 L |
10855 | as_bad (_("`%s' is not a valid %s expression"), |
10856 | operand_string, kind); | |
10857 | return 0; | |
3e73aa7c JH |
10858 | } |
10859 | else | |
10860 | { | |
be05d201 L |
10861 | if (addr_mode != CODE_16BIT) |
10862 | { | |
10863 | /* 32-bit/64-bit checks. */ | |
10864 | if ((i.base_reg | |
e968fc9b JB |
10865 | && ((addr_mode == CODE_64BIT |
10866 | ? !i.base_reg->reg_type.bitfield.qword | |
10867 | : !i.base_reg->reg_type.bitfield.dword) | |
10868 | || (i.index_reg && i.base_reg->reg_num == RegIP) | |
10869 | || i.base_reg->reg_num == RegIZ)) | |
be05d201 | 10870 | || (i.index_reg |
1b54b8d7 JB |
10871 | && !i.index_reg->reg_type.bitfield.xmmword |
10872 | && !i.index_reg->reg_type.bitfield.ymmword | |
10873 | && !i.index_reg->reg_type.bitfield.zmmword | |
be05d201 | 10874 | && ((addr_mode == CODE_64BIT |
e968fc9b JB |
10875 | ? !i.index_reg->reg_type.bitfield.qword |
10876 | : !i.index_reg->reg_type.bitfield.dword) | |
be05d201 L |
10877 | || !i.index_reg->reg_type.bitfield.baseindex))) |
10878 | goto bad_address; | |
8178be5b JB |
10879 | |
10880 | /* bndmk, bndldx, and bndstx have special restrictions. */ | |
10881 | if (current_templates->start->base_opcode == 0xf30f1b | |
10882 | || (current_templates->start->base_opcode & ~1) == 0x0f1a) | |
10883 | { | |
10884 | /* They cannot use RIP-relative addressing. */ | |
e968fc9b | 10885 | if (i.base_reg && i.base_reg->reg_num == RegIP) |
8178be5b JB |
10886 | { |
10887 | as_bad (_("`%s' cannot be used here"), operand_string); | |
10888 | return 0; | |
10889 | } | |
10890 | ||
10891 | /* bndldx and bndstx ignore their scale factor. */ | |
10892 | if (current_templates->start->base_opcode != 0xf30f1b | |
10893 | && i.log2_scale_factor) | |
10894 | as_warn (_("register scaling is being ignored here")); | |
10895 | } | |
be05d201 L |
10896 | } |
10897 | else | |
3e73aa7c | 10898 | { |
be05d201 | 10899 | /* 16-bit checks. */ |
3e73aa7c | 10900 | if ((i.base_reg |
dc821c5f | 10901 | && (!i.base_reg->reg_type.bitfield.word |
40fb9820 | 10902 | || !i.base_reg->reg_type.bitfield.baseindex)) |
3e73aa7c | 10903 | || (i.index_reg |
dc821c5f | 10904 | && (!i.index_reg->reg_type.bitfield.word |
40fb9820 | 10905 | || !i.index_reg->reg_type.bitfield.baseindex |
29b0f896 AM |
10906 | || !(i.base_reg |
10907 | && i.base_reg->reg_num < 6 | |
10908 | && i.index_reg->reg_num >= 6 | |
10909 | && i.log2_scale_factor == 0)))) | |
be05d201 | 10910 | goto bad_address; |
3e73aa7c JH |
10911 | } |
10912 | } | |
be05d201 | 10913 | return 1; |
24eab124 | 10914 | } |
252b5132 | 10915 | |
43234a1e L |
10916 | /* Handle vector immediates. */ |
10917 | ||
10918 | static int | |
10919 | RC_SAE_immediate (const char *imm_start) | |
10920 | { | |
10921 | unsigned int match_found, j; | |
10922 | const char *pstr = imm_start; | |
10923 | expressionS *exp; | |
10924 | ||
10925 | if (*pstr != '{') | |
10926 | return 0; | |
10927 | ||
10928 | pstr++; | |
10929 | match_found = 0; | |
10930 | for (j = 0; j < ARRAY_SIZE (RC_NamesTable); j++) | |
10931 | { | |
10932 | if (!strncmp (pstr, RC_NamesTable[j].name, RC_NamesTable[j].len)) | |
10933 | { | |
10934 | if (!i.rounding) | |
10935 | { | |
10936 | rc_op.type = RC_NamesTable[j].type; | |
10937 | rc_op.operand = this_operand; | |
10938 | i.rounding = &rc_op; | |
10939 | } | |
10940 | else | |
10941 | { | |
10942 | as_bad (_("duplicated `%s'"), imm_start); | |
10943 | return 0; | |
10944 | } | |
10945 | pstr += RC_NamesTable[j].len; | |
10946 | match_found = 1; | |
10947 | break; | |
10948 | } | |
10949 | } | |
10950 | if (!match_found) | |
10951 | return 0; | |
10952 | ||
10953 | if (*pstr++ != '}') | |
10954 | { | |
10955 | as_bad (_("Missing '}': '%s'"), imm_start); | |
10956 | return 0; | |
10957 | } | |
10958 | /* RC/SAE immediate string should contain nothing more. */; | |
10959 | if (*pstr != 0) | |
10960 | { | |
10961 | as_bad (_("Junk after '}': '%s'"), imm_start); | |
10962 | return 0; | |
10963 | } | |
10964 | ||
10965 | exp = &im_expressions[i.imm_operands++]; | |
10966 | i.op[this_operand].imms = exp; | |
10967 | ||
10968 | exp->X_op = O_constant; | |
10969 | exp->X_add_number = 0; | |
10970 | exp->X_add_symbol = (symbolS *) 0; | |
10971 | exp->X_op_symbol = (symbolS *) 0; | |
10972 | ||
10973 | i.types[this_operand].bitfield.imm8 = 1; | |
10974 | return 1; | |
10975 | } | |
10976 | ||
8325cc63 JB |
10977 | /* Only string instructions can have a second memory operand, so |
10978 | reduce current_templates to just those if it contains any. */ | |
10979 | static int | |
10980 | maybe_adjust_templates (void) | |
10981 | { | |
10982 | const insn_template *t; | |
10983 | ||
10984 | gas_assert (i.mem_operands == 1); | |
10985 | ||
10986 | for (t = current_templates->start; t < current_templates->end; ++t) | |
10987 | if (t->opcode_modifier.isstring) | |
10988 | break; | |
10989 | ||
10990 | if (t < current_templates->end) | |
10991 | { | |
10992 | static templates aux_templates; | |
10993 | bfd_boolean recheck; | |
10994 | ||
10995 | aux_templates.start = t; | |
10996 | for (; t < current_templates->end; ++t) | |
10997 | if (!t->opcode_modifier.isstring) | |
10998 | break; | |
10999 | aux_templates.end = t; | |
11000 | ||
11001 | /* Determine whether to re-check the first memory operand. */ | |
11002 | recheck = (aux_templates.start != current_templates->start | |
11003 | || t != current_templates->end); | |
11004 | ||
11005 | current_templates = &aux_templates; | |
11006 | ||
11007 | if (recheck) | |
11008 | { | |
11009 | i.mem_operands = 0; | |
11010 | if (i.memop1_string != NULL | |
11011 | && i386_index_check (i.memop1_string) == 0) | |
11012 | return 0; | |
11013 | i.mem_operands = 1; | |
11014 | } | |
11015 | } | |
11016 | ||
11017 | return 1; | |
11018 | } | |
11019 | ||
fc0763e6 | 11020 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero |
47926f60 | 11021 | on error. */ |
252b5132 | 11022 | |
252b5132 | 11023 | static int |
a7619375 | 11024 | i386_att_operand (char *operand_string) |
252b5132 | 11025 | { |
af6bdddf AM |
11026 | const reg_entry *r; |
11027 | char *end_op; | |
24eab124 | 11028 | char *op_string = operand_string; |
252b5132 | 11029 | |
24eab124 | 11030 | if (is_space_char (*op_string)) |
252b5132 RH |
11031 | ++op_string; |
11032 | ||
24eab124 | 11033 | /* We check for an absolute prefix (differentiating, |
47926f60 | 11034 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
11035 | if (*op_string == ABSOLUTE_PREFIX) |
11036 | { | |
11037 | ++op_string; | |
11038 | if (is_space_char (*op_string)) | |
11039 | ++op_string; | |
6f2f06be | 11040 | i.jumpabsolute = TRUE; |
24eab124 | 11041 | } |
252b5132 | 11042 | |
47926f60 | 11043 | /* Check if operand is a register. */ |
4d1bb795 | 11044 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 11045 | { |
40fb9820 L |
11046 | i386_operand_type temp; |
11047 | ||
24eab124 AM |
11048 | /* Check for a segment override by searching for ':' after a |
11049 | segment register. */ | |
11050 | op_string = end_op; | |
11051 | if (is_space_char (*op_string)) | |
11052 | ++op_string; | |
00cee14f | 11053 | if (*op_string == ':' && r->reg_type.bitfield.class == SReg) |
24eab124 AM |
11054 | { |
11055 | switch (r->reg_num) | |
11056 | { | |
11057 | case 0: | |
11058 | i.seg[i.mem_operands] = &es; | |
11059 | break; | |
11060 | case 1: | |
11061 | i.seg[i.mem_operands] = &cs; | |
11062 | break; | |
11063 | case 2: | |
11064 | i.seg[i.mem_operands] = &ss; | |
11065 | break; | |
11066 | case 3: | |
11067 | i.seg[i.mem_operands] = &ds; | |
11068 | break; | |
11069 | case 4: | |
11070 | i.seg[i.mem_operands] = &fs; | |
11071 | break; | |
11072 | case 5: | |
11073 | i.seg[i.mem_operands] = &gs; | |
11074 | break; | |
11075 | } | |
252b5132 | 11076 | |
24eab124 | 11077 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
11078 | ++op_string; |
11079 | if (is_space_char (*op_string)) | |
24eab124 | 11080 | ++op_string; |
252b5132 | 11081 | |
24eab124 AM |
11082 | if (!is_digit_char (*op_string) |
11083 | && !is_identifier_char (*op_string) | |
11084 | && *op_string != '(' | |
11085 | && *op_string != ABSOLUTE_PREFIX) | |
11086 | { | |
11087 | as_bad (_("bad memory operand `%s'"), op_string); | |
11088 | return 0; | |
11089 | } | |
47926f60 | 11090 | /* Handle case of %es:*foo. */ |
24eab124 AM |
11091 | if (*op_string == ABSOLUTE_PREFIX) |
11092 | { | |
11093 | ++op_string; | |
11094 | if (is_space_char (*op_string)) | |
11095 | ++op_string; | |
6f2f06be | 11096 | i.jumpabsolute = TRUE; |
24eab124 AM |
11097 | } |
11098 | goto do_memory_reference; | |
11099 | } | |
43234a1e L |
11100 | |
11101 | /* Handle vector operations. */ | |
11102 | if (*op_string == '{') | |
11103 | { | |
11104 | op_string = check_VecOperations (op_string, NULL); | |
11105 | if (op_string == NULL) | |
11106 | return 0; | |
11107 | } | |
11108 | ||
24eab124 AM |
11109 | if (*op_string) |
11110 | { | |
d0b47220 | 11111 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
11112 | return 0; |
11113 | } | |
40fb9820 L |
11114 | temp = r->reg_type; |
11115 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
11116 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
11117 | temp); | |
7d5e4556 | 11118 | i.types[this_operand].bitfield.unspecified = 0; |
520dc8e8 | 11119 | i.op[this_operand].regs = r; |
24eab124 AM |
11120 | i.reg_operands++; |
11121 | } | |
af6bdddf AM |
11122 | else if (*op_string == REGISTER_PREFIX) |
11123 | { | |
11124 | as_bad (_("bad register name `%s'"), op_string); | |
11125 | return 0; | |
11126 | } | |
24eab124 | 11127 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 11128 | { |
24eab124 | 11129 | ++op_string; |
6f2f06be | 11130 | if (i.jumpabsolute) |
24eab124 | 11131 | { |
d0b47220 | 11132 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
11133 | return 0; |
11134 | } | |
11135 | if (!i386_immediate (op_string)) | |
11136 | return 0; | |
11137 | } | |
43234a1e L |
11138 | else if (RC_SAE_immediate (operand_string)) |
11139 | { | |
11140 | /* If it is a RC or SAE immediate, do nothing. */ | |
11141 | ; | |
11142 | } | |
24eab124 AM |
11143 | else if (is_digit_char (*op_string) |
11144 | || is_identifier_char (*op_string) | |
d02603dc | 11145 | || *op_string == '"' |
e5cb08ac | 11146 | || *op_string == '(') |
24eab124 | 11147 | { |
47926f60 | 11148 | /* This is a memory reference of some sort. */ |
af6bdddf | 11149 | char *base_string; |
252b5132 | 11150 | |
47926f60 | 11151 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
11152 | char *displacement_string_start; |
11153 | char *displacement_string_end; | |
43234a1e | 11154 | char *vop_start; |
252b5132 | 11155 | |
24eab124 | 11156 | do_memory_reference: |
8325cc63 JB |
11157 | if (i.mem_operands == 1 && !maybe_adjust_templates ()) |
11158 | return 0; | |
24eab124 | 11159 | if ((i.mem_operands == 1 |
40fb9820 | 11160 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
11161 | || i.mem_operands == 2) |
11162 | { | |
11163 | as_bad (_("too many memory references for `%s'"), | |
11164 | current_templates->start->name); | |
11165 | return 0; | |
11166 | } | |
252b5132 | 11167 | |
24eab124 AM |
11168 | /* Check for base index form. We detect the base index form by |
11169 | looking for an ')' at the end of the operand, searching | |
11170 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
11171 | after the '('. */ | |
af6bdddf | 11172 | base_string = op_string + strlen (op_string); |
c3332e24 | 11173 | |
43234a1e L |
11174 | /* Handle vector operations. */ |
11175 | vop_start = strchr (op_string, '{'); | |
11176 | if (vop_start && vop_start < base_string) | |
11177 | { | |
11178 | if (check_VecOperations (vop_start, base_string) == NULL) | |
11179 | return 0; | |
11180 | base_string = vop_start; | |
11181 | } | |
11182 | ||
af6bdddf AM |
11183 | --base_string; |
11184 | if (is_space_char (*base_string)) | |
11185 | --base_string; | |
252b5132 | 11186 | |
47926f60 | 11187 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
11188 | displacement_string_start = op_string; |
11189 | displacement_string_end = base_string + 1; | |
252b5132 | 11190 | |
24eab124 AM |
11191 | if (*base_string == ')') |
11192 | { | |
af6bdddf | 11193 | char *temp_string; |
24eab124 AM |
11194 | unsigned int parens_balanced = 1; |
11195 | /* We've already checked that the number of left & right ()'s are | |
47926f60 | 11196 | equal, so this loop will not be infinite. */ |
24eab124 AM |
11197 | do |
11198 | { | |
11199 | base_string--; | |
11200 | if (*base_string == ')') | |
11201 | parens_balanced++; | |
11202 | if (*base_string == '(') | |
11203 | parens_balanced--; | |
11204 | } | |
11205 | while (parens_balanced); | |
c3332e24 | 11206 | |
af6bdddf | 11207 | temp_string = base_string; |
c3332e24 | 11208 | |
24eab124 | 11209 | /* Skip past '(' and whitespace. */ |
252b5132 RH |
11210 | ++base_string; |
11211 | if (is_space_char (*base_string)) | |
24eab124 | 11212 | ++base_string; |
252b5132 | 11213 | |
af6bdddf | 11214 | if (*base_string == ',' |
4eed87de AM |
11215 | || ((i.base_reg = parse_register (base_string, &end_op)) |
11216 | != NULL)) | |
252b5132 | 11217 | { |
af6bdddf | 11218 | displacement_string_end = temp_string; |
252b5132 | 11219 | |
40fb9820 | 11220 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 11221 | |
af6bdddf | 11222 | if (i.base_reg) |
24eab124 | 11223 | { |
24eab124 AM |
11224 | base_string = end_op; |
11225 | if (is_space_char (*base_string)) | |
11226 | ++base_string; | |
af6bdddf AM |
11227 | } |
11228 | ||
11229 | /* There may be an index reg or scale factor here. */ | |
11230 | if (*base_string == ',') | |
11231 | { | |
11232 | ++base_string; | |
11233 | if (is_space_char (*base_string)) | |
11234 | ++base_string; | |
11235 | ||
4eed87de AM |
11236 | if ((i.index_reg = parse_register (base_string, &end_op)) |
11237 | != NULL) | |
24eab124 | 11238 | { |
af6bdddf | 11239 | base_string = end_op; |
24eab124 AM |
11240 | if (is_space_char (*base_string)) |
11241 | ++base_string; | |
af6bdddf AM |
11242 | if (*base_string == ',') |
11243 | { | |
11244 | ++base_string; | |
11245 | if (is_space_char (*base_string)) | |
11246 | ++base_string; | |
11247 | } | |
e5cb08ac | 11248 | else if (*base_string != ')') |
af6bdddf | 11249 | { |
4eed87de AM |
11250 | as_bad (_("expecting `,' or `)' " |
11251 | "after index register in `%s'"), | |
af6bdddf AM |
11252 | operand_string); |
11253 | return 0; | |
11254 | } | |
24eab124 | 11255 | } |
af6bdddf | 11256 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 11257 | { |
f76bf5e0 L |
11258 | end_op = strchr (base_string, ','); |
11259 | if (end_op) | |
11260 | *end_op = '\0'; | |
af6bdddf | 11261 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
11262 | return 0; |
11263 | } | |
252b5132 | 11264 | |
47926f60 | 11265 | /* Check for scale factor. */ |
551c1ca1 | 11266 | if (*base_string != ')') |
af6bdddf | 11267 | { |
551c1ca1 AM |
11268 | char *end_scale = i386_scale (base_string); |
11269 | ||
11270 | if (!end_scale) | |
af6bdddf | 11271 | return 0; |
24eab124 | 11272 | |
551c1ca1 | 11273 | base_string = end_scale; |
af6bdddf AM |
11274 | if (is_space_char (*base_string)) |
11275 | ++base_string; | |
11276 | if (*base_string != ')') | |
11277 | { | |
4eed87de AM |
11278 | as_bad (_("expecting `)' " |
11279 | "after scale factor in `%s'"), | |
af6bdddf AM |
11280 | operand_string); |
11281 | return 0; | |
11282 | } | |
11283 | } | |
11284 | else if (!i.index_reg) | |
24eab124 | 11285 | { |
4eed87de AM |
11286 | as_bad (_("expecting index register or scale factor " |
11287 | "after `,'; got '%c'"), | |
af6bdddf | 11288 | *base_string); |
24eab124 AM |
11289 | return 0; |
11290 | } | |
11291 | } | |
af6bdddf | 11292 | else if (*base_string != ')') |
24eab124 | 11293 | { |
4eed87de AM |
11294 | as_bad (_("expecting `,' or `)' " |
11295 | "after base register in `%s'"), | |
af6bdddf | 11296 | operand_string); |
24eab124 AM |
11297 | return 0; |
11298 | } | |
c3332e24 | 11299 | } |
af6bdddf | 11300 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 11301 | { |
f76bf5e0 L |
11302 | end_op = strchr (base_string, ','); |
11303 | if (end_op) | |
11304 | *end_op = '\0'; | |
af6bdddf | 11305 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 11306 | return 0; |
c3332e24 | 11307 | } |
24eab124 AM |
11308 | } |
11309 | ||
11310 | /* If there's an expression beginning the operand, parse it, | |
11311 | assuming displacement_string_start and | |
11312 | displacement_string_end are meaningful. */ | |
11313 | if (displacement_string_start != displacement_string_end) | |
11314 | { | |
11315 | if (!i386_displacement (displacement_string_start, | |
11316 | displacement_string_end)) | |
11317 | return 0; | |
11318 | } | |
11319 | ||
11320 | /* Special case for (%dx) while doing input/output op. */ | |
11321 | if (i.base_reg | |
75e5731b JB |
11322 | && i.base_reg->reg_type.bitfield.instance == RegD |
11323 | && i.base_reg->reg_type.bitfield.word | |
24eab124 AM |
11324 | && i.index_reg == 0 |
11325 | && i.log2_scale_factor == 0 | |
11326 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 11327 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 11328 | { |
2fb5be8d | 11329 | i.types[this_operand] = i.base_reg->reg_type; |
24eab124 AM |
11330 | return 1; |
11331 | } | |
11332 | ||
eecb386c AM |
11333 | if (i386_index_check (operand_string) == 0) |
11334 | return 0; | |
c48dadc9 | 11335 | i.flags[this_operand] |= Operand_Mem; |
8325cc63 JB |
11336 | if (i.mem_operands == 0) |
11337 | i.memop1_string = xstrdup (operand_string); | |
24eab124 AM |
11338 | i.mem_operands++; |
11339 | } | |
11340 | else | |
ce8a8b2f AM |
11341 | { |
11342 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
11343 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
11344 | output_invalid (*op_string), | |
11345 | this_operand + 1, | |
11346 | op_string); | |
11347 | return 0; | |
11348 | } | |
47926f60 | 11349 | return 1; /* Normal return. */ |
252b5132 RH |
11350 | } |
11351 | \f | |
fa94de6b RM |
11352 | /* Calculate the maximum variable size (i.e., excluding fr_fix) |
11353 | that an rs_machine_dependent frag may reach. */ | |
11354 | ||
11355 | unsigned int | |
11356 | i386_frag_max_var (fragS *frag) | |
11357 | { | |
11358 | /* The only relaxable frags are for jumps. | |
11359 | Unconditional jumps can grow by 4 bytes and others by 5 bytes. */ | |
11360 | gas_assert (frag->fr_type == rs_machine_dependent); | |
11361 | return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5; | |
11362 | } | |
11363 | ||
b084df0b L |
11364 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
11365 | static int | |
8dcea932 | 11366 | elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var) |
b084df0b L |
11367 | { |
11368 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
11369 | if ((symbol_get_bfdsym (fr_symbol)->flags | |
11370 | & BSF_GNU_INDIRECT_FUNCTION) != 0) | |
11371 | return 0; | |
11372 | ||
11373 | if (!S_IS_EXTERNAL (fr_symbol)) | |
11374 | /* Symbol may be weak or local. */ | |
11375 | return !S_IS_WEAK (fr_symbol); | |
11376 | ||
8dcea932 L |
11377 | /* Global symbols with non-default visibility can't be preempted. */ |
11378 | if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT) | |
11379 | return 1; | |
11380 | ||
11381 | if (fr_var != NO_RELOC) | |
11382 | switch ((enum bfd_reloc_code_real) fr_var) | |
11383 | { | |
11384 | case BFD_RELOC_386_PLT32: | |
11385 | case BFD_RELOC_X86_64_PLT32: | |
33eaf5de | 11386 | /* Symbol with PLT relocation may be preempted. */ |
8dcea932 L |
11387 | return 0; |
11388 | default: | |
11389 | abort (); | |
11390 | } | |
11391 | ||
b084df0b L |
11392 | /* Global symbols with default visibility in a shared library may be |
11393 | preempted by another definition. */ | |
8dcea932 | 11394 | return !shared; |
b084df0b L |
11395 | } |
11396 | #endif | |
11397 | ||
79d72f45 HL |
11398 | /* Table 3-2. Macro-Fusible Instructions in Haswell Microarchitecture |
11399 | Note also work for Skylake and Cascadelake. | |
11400 | --------------------------------------------------------------------- | |
11401 | | JCC | ADD/SUB/CMP | INC/DEC | TEST/AND | | |
11402 | | ------ | ----------- | ------- | -------- | | |
11403 | | Jo | N | N | Y | | |
11404 | | Jno | N | N | Y | | |
11405 | | Jc/Jb | Y | N | Y | | |
11406 | | Jae/Jnb | Y | N | Y | | |
11407 | | Je/Jz | Y | Y | Y | | |
11408 | | Jne/Jnz | Y | Y | Y | | |
11409 | | Jna/Jbe | Y | N | Y | | |
11410 | | Ja/Jnbe | Y | N | Y | | |
11411 | | Js | N | N | Y | | |
11412 | | Jns | N | N | Y | | |
11413 | | Jp/Jpe | N | N | Y | | |
11414 | | Jnp/Jpo | N | N | Y | | |
11415 | | Jl/Jnge | Y | Y | Y | | |
11416 | | Jge/Jnl | Y | Y | Y | | |
11417 | | Jle/Jng | Y | Y | Y | | |
11418 | | Jg/Jnle | Y | Y | Y | | |
11419 | --------------------------------------------------------------------- */ | |
11420 | static int | |
11421 | i386_macro_fusible_p (enum mf_cmp_kind mf_cmp, enum mf_jcc_kind mf_jcc) | |
11422 | { | |
11423 | if (mf_cmp == mf_cmp_alu_cmp) | |
11424 | return ((mf_jcc >= mf_jcc_jc && mf_jcc <= mf_jcc_jna) | |
11425 | || mf_jcc == mf_jcc_jl || mf_jcc == mf_jcc_jle); | |
11426 | if (mf_cmp == mf_cmp_incdec) | |
11427 | return (mf_jcc == mf_jcc_je || mf_jcc == mf_jcc_jl | |
11428 | || mf_jcc == mf_jcc_jle); | |
11429 | if (mf_cmp == mf_cmp_test_and) | |
11430 | return 1; | |
11431 | return 0; | |
11432 | } | |
11433 | ||
e379e5f3 L |
11434 | /* Return the next non-empty frag. */ |
11435 | ||
11436 | static fragS * | |
11437 | i386_next_non_empty_frag (fragS *fragP) | |
11438 | { | |
11439 | /* There may be a frag with a ".fill 0" when there is no room in | |
11440 | the current frag for frag_grow in output_insn. */ | |
11441 | for (fragP = fragP->fr_next; | |
11442 | (fragP != NULL | |
11443 | && fragP->fr_type == rs_fill | |
11444 | && fragP->fr_fix == 0); | |
11445 | fragP = fragP->fr_next) | |
11446 | ; | |
11447 | return fragP; | |
11448 | } | |
11449 | ||
11450 | /* Return the next jcc frag after BRANCH_PADDING. */ | |
11451 | ||
11452 | static fragS * | |
79d72f45 | 11453 | i386_next_fusible_jcc_frag (fragS *maybe_cmp_fragP, fragS *pad_fragP) |
e379e5f3 | 11454 | { |
79d72f45 HL |
11455 | fragS *branch_fragP; |
11456 | if (!pad_fragP) | |
e379e5f3 L |
11457 | return NULL; |
11458 | ||
79d72f45 HL |
11459 | if (pad_fragP->fr_type == rs_machine_dependent |
11460 | && (TYPE_FROM_RELAX_STATE (pad_fragP->fr_subtype) | |
e379e5f3 L |
11461 | == BRANCH_PADDING)) |
11462 | { | |
79d72f45 HL |
11463 | branch_fragP = i386_next_non_empty_frag (pad_fragP); |
11464 | if (branch_fragP->fr_type != rs_machine_dependent) | |
e379e5f3 | 11465 | return NULL; |
79d72f45 HL |
11466 | if (TYPE_FROM_RELAX_STATE (branch_fragP->fr_subtype) == COND_JUMP |
11467 | && i386_macro_fusible_p (maybe_cmp_fragP->tc_frag_data.mf_type, | |
11468 | pad_fragP->tc_frag_data.mf_type)) | |
11469 | return branch_fragP; | |
e379e5f3 L |
11470 | } |
11471 | ||
11472 | return NULL; | |
11473 | } | |
11474 | ||
11475 | /* Classify BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags. */ | |
11476 | ||
11477 | static void | |
11478 | i386_classify_machine_dependent_frag (fragS *fragP) | |
11479 | { | |
11480 | fragS *cmp_fragP; | |
11481 | fragS *pad_fragP; | |
11482 | fragS *branch_fragP; | |
11483 | fragS *next_fragP; | |
11484 | unsigned int max_prefix_length; | |
11485 | ||
11486 | if (fragP->tc_frag_data.classified) | |
11487 | return; | |
11488 | ||
11489 | /* First scan for BRANCH_PADDING and FUSED_JCC_PADDING. Convert | |
11490 | FUSED_JCC_PADDING and merge BRANCH_PADDING. */ | |
11491 | for (next_fragP = fragP; | |
11492 | next_fragP != NULL; | |
11493 | next_fragP = next_fragP->fr_next) | |
11494 | { | |
11495 | next_fragP->tc_frag_data.classified = 1; | |
11496 | if (next_fragP->fr_type == rs_machine_dependent) | |
11497 | switch (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)) | |
11498 | { | |
11499 | case BRANCH_PADDING: | |
11500 | /* The BRANCH_PADDING frag must be followed by a branch | |
11501 | frag. */ | |
11502 | branch_fragP = i386_next_non_empty_frag (next_fragP); | |
11503 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
11504 | break; | |
11505 | case FUSED_JCC_PADDING: | |
11506 | /* Check if this is a fused jcc: | |
11507 | FUSED_JCC_PADDING | |
11508 | CMP like instruction | |
11509 | BRANCH_PADDING | |
11510 | COND_JUMP | |
11511 | */ | |
11512 | cmp_fragP = i386_next_non_empty_frag (next_fragP); | |
11513 | pad_fragP = i386_next_non_empty_frag (cmp_fragP); | |
79d72f45 | 11514 | branch_fragP = i386_next_fusible_jcc_frag (next_fragP, pad_fragP); |
e379e5f3 L |
11515 | if (branch_fragP) |
11516 | { | |
11517 | /* The BRANCH_PADDING frag is merged with the | |
11518 | FUSED_JCC_PADDING frag. */ | |
11519 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
11520 | /* CMP like instruction size. */ | |
11521 | next_fragP->tc_frag_data.cmp_size = cmp_fragP->fr_fix; | |
11522 | frag_wane (pad_fragP); | |
11523 | /* Skip to branch_fragP. */ | |
11524 | next_fragP = branch_fragP; | |
11525 | } | |
11526 | else if (next_fragP->tc_frag_data.max_prefix_length) | |
11527 | { | |
11528 | /* Turn FUSED_JCC_PADDING into BRANCH_PREFIX if it isn't | |
11529 | a fused jcc. */ | |
11530 | next_fragP->fr_subtype | |
11531 | = ENCODE_RELAX_STATE (BRANCH_PREFIX, 0); | |
11532 | next_fragP->tc_frag_data.max_bytes | |
11533 | = next_fragP->tc_frag_data.max_prefix_length; | |
11534 | /* This will be updated in the BRANCH_PREFIX scan. */ | |
11535 | next_fragP->tc_frag_data.max_prefix_length = 0; | |
11536 | } | |
11537 | else | |
11538 | frag_wane (next_fragP); | |
11539 | break; | |
11540 | } | |
11541 | } | |
11542 | ||
11543 | /* Stop if there is no BRANCH_PREFIX. */ | |
11544 | if (!align_branch_prefix_size) | |
11545 | return; | |
11546 | ||
11547 | /* Scan for BRANCH_PREFIX. */ | |
11548 | for (; fragP != NULL; fragP = fragP->fr_next) | |
11549 | { | |
11550 | if (fragP->fr_type != rs_machine_dependent | |
11551 | || (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
11552 | != BRANCH_PREFIX)) | |
11553 | continue; | |
11554 | ||
11555 | /* Count all BRANCH_PREFIX frags before BRANCH_PADDING and | |
11556 | COND_JUMP_PREFIX. */ | |
11557 | max_prefix_length = 0; | |
11558 | for (next_fragP = fragP; | |
11559 | next_fragP != NULL; | |
11560 | next_fragP = next_fragP->fr_next) | |
11561 | { | |
11562 | if (next_fragP->fr_type == rs_fill) | |
11563 | /* Skip rs_fill frags. */ | |
11564 | continue; | |
11565 | else if (next_fragP->fr_type != rs_machine_dependent) | |
11566 | /* Stop for all other frags. */ | |
11567 | break; | |
11568 | ||
11569 | /* rs_machine_dependent frags. */ | |
11570 | if (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11571 | == BRANCH_PREFIX) | |
11572 | { | |
11573 | /* Count BRANCH_PREFIX frags. */ | |
11574 | if (max_prefix_length >= MAX_FUSED_JCC_PADDING_SIZE) | |
11575 | { | |
11576 | max_prefix_length = MAX_FUSED_JCC_PADDING_SIZE; | |
11577 | frag_wane (next_fragP); | |
11578 | } | |
11579 | else | |
11580 | max_prefix_length | |
11581 | += next_fragP->tc_frag_data.max_bytes; | |
11582 | } | |
11583 | else if ((TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11584 | == BRANCH_PADDING) | |
11585 | || (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11586 | == FUSED_JCC_PADDING)) | |
11587 | { | |
11588 | /* Stop at BRANCH_PADDING and FUSED_JCC_PADDING. */ | |
11589 | fragP->tc_frag_data.u.padding_fragP = next_fragP; | |
11590 | break; | |
11591 | } | |
11592 | else | |
11593 | /* Stop for other rs_machine_dependent frags. */ | |
11594 | break; | |
11595 | } | |
11596 | ||
11597 | fragP->tc_frag_data.max_prefix_length = max_prefix_length; | |
11598 | ||
11599 | /* Skip to the next frag. */ | |
11600 | fragP = next_fragP; | |
11601 | } | |
11602 | } | |
11603 | ||
11604 | /* Compute padding size for | |
11605 | ||
11606 | FUSED_JCC_PADDING | |
11607 | CMP like instruction | |
11608 | BRANCH_PADDING | |
11609 | COND_JUMP/UNCOND_JUMP | |
11610 | ||
11611 | or | |
11612 | ||
11613 | BRANCH_PADDING | |
11614 | COND_JUMP/UNCOND_JUMP | |
11615 | */ | |
11616 | ||
11617 | static int | |
11618 | i386_branch_padding_size (fragS *fragP, offsetT address) | |
11619 | { | |
11620 | unsigned int offset, size, padding_size; | |
11621 | fragS *branch_fragP = fragP->tc_frag_data.u.branch_fragP; | |
11622 | ||
11623 | /* The start address of the BRANCH_PADDING or FUSED_JCC_PADDING frag. */ | |
11624 | if (!address) | |
11625 | address = fragP->fr_address; | |
11626 | address += fragP->fr_fix; | |
11627 | ||
11628 | /* CMP like instrunction size. */ | |
11629 | size = fragP->tc_frag_data.cmp_size; | |
11630 | ||
11631 | /* The base size of the branch frag. */ | |
11632 | size += branch_fragP->fr_fix; | |
11633 | ||
11634 | /* Add opcode and displacement bytes for the rs_machine_dependent | |
11635 | branch frag. */ | |
11636 | if (branch_fragP->fr_type == rs_machine_dependent) | |
11637 | size += md_relax_table[branch_fragP->fr_subtype].rlx_length; | |
11638 | ||
11639 | /* Check if branch is within boundary and doesn't end at the last | |
11640 | byte. */ | |
11641 | offset = address & ((1U << align_branch_power) - 1); | |
11642 | if ((offset + size) >= (1U << align_branch_power)) | |
11643 | /* Padding needed to avoid crossing boundary. */ | |
11644 | padding_size = (1U << align_branch_power) - offset; | |
11645 | else | |
11646 | /* No padding needed. */ | |
11647 | padding_size = 0; | |
11648 | ||
11649 | /* The return value may be saved in tc_frag_data.length which is | |
11650 | unsigned byte. */ | |
11651 | if (!fits_in_unsigned_byte (padding_size)) | |
11652 | abort (); | |
11653 | ||
11654 | return padding_size; | |
11655 | } | |
11656 | ||
11657 | /* i386_generic_table_relax_frag() | |
11658 | ||
11659 | Handle BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags to | |
11660 | grow/shrink padding to align branch frags. Hand others to | |
11661 | relax_frag(). */ | |
11662 | ||
11663 | long | |
11664 | i386_generic_table_relax_frag (segT segment, fragS *fragP, long stretch) | |
11665 | { | |
11666 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
11667 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
11668 | { | |
11669 | long padding_size = i386_branch_padding_size (fragP, 0); | |
11670 | long grow = padding_size - fragP->tc_frag_data.length; | |
11671 | ||
11672 | /* When the BRANCH_PREFIX frag is used, the computed address | |
11673 | must match the actual address and there should be no padding. */ | |
11674 | if (fragP->tc_frag_data.padding_address | |
11675 | && (fragP->tc_frag_data.padding_address != fragP->fr_address | |
11676 | || padding_size)) | |
11677 | abort (); | |
11678 | ||
11679 | /* Update the padding size. */ | |
11680 | if (grow) | |
11681 | fragP->tc_frag_data.length = padding_size; | |
11682 | ||
11683 | return grow; | |
11684 | } | |
11685 | else if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
11686 | { | |
11687 | fragS *padding_fragP, *next_fragP; | |
11688 | long padding_size, left_size, last_size; | |
11689 | ||
11690 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
11691 | if (!padding_fragP) | |
11692 | /* Use the padding set by the leading BRANCH_PREFIX frag. */ | |
11693 | return (fragP->tc_frag_data.length | |
11694 | - fragP->tc_frag_data.last_length); | |
11695 | ||
11696 | /* Compute the relative address of the padding frag in the very | |
11697 | first time where the BRANCH_PREFIX frag sizes are zero. */ | |
11698 | if (!fragP->tc_frag_data.padding_address) | |
11699 | fragP->tc_frag_data.padding_address | |
11700 | = padding_fragP->fr_address - (fragP->fr_address - stretch); | |
11701 | ||
11702 | /* First update the last length from the previous interation. */ | |
11703 | left_size = fragP->tc_frag_data.prefix_length; | |
11704 | for (next_fragP = fragP; | |
11705 | next_fragP != padding_fragP; | |
11706 | next_fragP = next_fragP->fr_next) | |
11707 | if (next_fragP->fr_type == rs_machine_dependent | |
11708 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11709 | == BRANCH_PREFIX)) | |
11710 | { | |
11711 | if (left_size) | |
11712 | { | |
11713 | int max = next_fragP->tc_frag_data.max_bytes; | |
11714 | if (max) | |
11715 | { | |
11716 | int size; | |
11717 | if (max > left_size) | |
11718 | size = left_size; | |
11719 | else | |
11720 | size = max; | |
11721 | left_size -= size; | |
11722 | next_fragP->tc_frag_data.last_length = size; | |
11723 | } | |
11724 | } | |
11725 | else | |
11726 | next_fragP->tc_frag_data.last_length = 0; | |
11727 | } | |
11728 | ||
11729 | /* Check the padding size for the padding frag. */ | |
11730 | padding_size = i386_branch_padding_size | |
11731 | (padding_fragP, (fragP->fr_address | |
11732 | + fragP->tc_frag_data.padding_address)); | |
11733 | ||
11734 | last_size = fragP->tc_frag_data.prefix_length; | |
11735 | /* Check if there is change from the last interation. */ | |
11736 | if (padding_size == last_size) | |
11737 | { | |
11738 | /* Update the expected address of the padding frag. */ | |
11739 | padding_fragP->tc_frag_data.padding_address | |
11740 | = (fragP->fr_address + padding_size | |
11741 | + fragP->tc_frag_data.padding_address); | |
11742 | return 0; | |
11743 | } | |
11744 | ||
11745 | if (padding_size > fragP->tc_frag_data.max_prefix_length) | |
11746 | { | |
11747 | /* No padding if there is no sufficient room. Clear the | |
11748 | expected address of the padding frag. */ | |
11749 | padding_fragP->tc_frag_data.padding_address = 0; | |
11750 | padding_size = 0; | |
11751 | } | |
11752 | else | |
11753 | /* Store the expected address of the padding frag. */ | |
11754 | padding_fragP->tc_frag_data.padding_address | |
11755 | = (fragP->fr_address + padding_size | |
11756 | + fragP->tc_frag_data.padding_address); | |
11757 | ||
11758 | fragP->tc_frag_data.prefix_length = padding_size; | |
11759 | ||
11760 | /* Update the length for the current interation. */ | |
11761 | left_size = padding_size; | |
11762 | for (next_fragP = fragP; | |
11763 | next_fragP != padding_fragP; | |
11764 | next_fragP = next_fragP->fr_next) | |
11765 | if (next_fragP->fr_type == rs_machine_dependent | |
11766 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11767 | == BRANCH_PREFIX)) | |
11768 | { | |
11769 | if (left_size) | |
11770 | { | |
11771 | int max = next_fragP->tc_frag_data.max_bytes; | |
11772 | if (max) | |
11773 | { | |
11774 | int size; | |
11775 | if (max > left_size) | |
11776 | size = left_size; | |
11777 | else | |
11778 | size = max; | |
11779 | left_size -= size; | |
11780 | next_fragP->tc_frag_data.length = size; | |
11781 | } | |
11782 | } | |
11783 | else | |
11784 | next_fragP->tc_frag_data.length = 0; | |
11785 | } | |
11786 | ||
11787 | return (fragP->tc_frag_data.length | |
11788 | - fragP->tc_frag_data.last_length); | |
11789 | } | |
11790 | return relax_frag (segment, fragP, stretch); | |
11791 | } | |
11792 | ||
ee7fcc42 AM |
11793 | /* md_estimate_size_before_relax() |
11794 | ||
11795 | Called just before relax() for rs_machine_dependent frags. The x86 | |
11796 | assembler uses these frags to handle variable size jump | |
11797 | instructions. | |
11798 | ||
11799 | Any symbol that is now undefined will not become defined. | |
11800 | Return the correct fr_subtype in the frag. | |
11801 | Return the initial "guess for variable size of frag" to caller. | |
11802 | The guess is actually the growth beyond the fixed part. Whatever | |
11803 | we do to grow the fixed or variable part contributes to our | |
11804 | returned value. */ | |
11805 | ||
252b5132 | 11806 | int |
7016a5d5 | 11807 | md_estimate_size_before_relax (fragS *fragP, segT segment) |
252b5132 | 11808 | { |
e379e5f3 L |
11809 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
11810 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX | |
11811 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
11812 | { | |
11813 | i386_classify_machine_dependent_frag (fragP); | |
11814 | return fragP->tc_frag_data.length; | |
11815 | } | |
11816 | ||
252b5132 | 11817 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
11818 | check for un-relaxable symbols. On an ELF system, we can't relax |
11819 | an externally visible symbol, because it may be overridden by a | |
11820 | shared library. */ | |
11821 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 11822 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 11823 | || (IS_ELF |
8dcea932 L |
11824 | && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol, |
11825 | fragP->fr_var)) | |
fbeb56a4 DK |
11826 | #endif |
11827 | #if defined (OBJ_COFF) && defined (TE_PE) | |
7ab9ffdd | 11828 | || (OUTPUT_FLAVOR == bfd_target_coff_flavour |
fbeb56a4 | 11829 | && S_IS_WEAK (fragP->fr_symbol)) |
b98ef147 AM |
11830 | #endif |
11831 | ) | |
252b5132 | 11832 | { |
b98ef147 AM |
11833 | /* Symbol is undefined in this segment, or we need to keep a |
11834 | reloc so that weak symbols can be overridden. */ | |
11835 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 11836 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
11837 | unsigned char *opcode; |
11838 | int old_fr_fix; | |
f6af82bd | 11839 | |
ee7fcc42 | 11840 | if (fragP->fr_var != NO_RELOC) |
1e9cc1c2 | 11841 | reloc_type = (enum bfd_reloc_code_real) fragP->fr_var; |
b98ef147 | 11842 | else if (size == 2) |
f6af82bd | 11843 | reloc_type = BFD_RELOC_16_PCREL; |
bd7ab16b L |
11844 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
11845 | else if (need_plt32_p (fragP->fr_symbol)) | |
11846 | reloc_type = BFD_RELOC_X86_64_PLT32; | |
11847 | #endif | |
f6af82bd AM |
11848 | else |
11849 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 11850 | |
ee7fcc42 AM |
11851 | old_fr_fix = fragP->fr_fix; |
11852 | opcode = (unsigned char *) fragP->fr_opcode; | |
11853 | ||
fddf5b5b | 11854 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 11855 | { |
fddf5b5b AM |
11856 | case UNCOND_JUMP: |
11857 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 11858 | opcode[0] = 0xe9; |
252b5132 | 11859 | fragP->fr_fix += size; |
062cd5e7 AS |
11860 | fix_new (fragP, old_fr_fix, size, |
11861 | fragP->fr_symbol, | |
11862 | fragP->fr_offset, 1, | |
11863 | reloc_type); | |
252b5132 RH |
11864 | break; |
11865 | ||
fddf5b5b | 11866 | case COND_JUMP86: |
412167cb AM |
11867 | if (size == 2 |
11868 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
11869 | { |
11870 | /* Negate the condition, and branch past an | |
11871 | unconditional jump. */ | |
11872 | opcode[0] ^= 1; | |
11873 | opcode[1] = 3; | |
11874 | /* Insert an unconditional jump. */ | |
11875 | opcode[2] = 0xe9; | |
11876 | /* We added two extra opcode bytes, and have a two byte | |
11877 | offset. */ | |
11878 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
11879 | fix_new (fragP, old_fr_fix + 2, 2, |
11880 | fragP->fr_symbol, | |
11881 | fragP->fr_offset, 1, | |
11882 | reloc_type); | |
fddf5b5b AM |
11883 | break; |
11884 | } | |
11885 | /* Fall through. */ | |
11886 | ||
11887 | case COND_JUMP: | |
412167cb AM |
11888 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
11889 | { | |
3e02c1cc AM |
11890 | fixS *fixP; |
11891 | ||
412167cb | 11892 | fragP->fr_fix += 1; |
3e02c1cc AM |
11893 | fixP = fix_new (fragP, old_fr_fix, 1, |
11894 | fragP->fr_symbol, | |
11895 | fragP->fr_offset, 1, | |
11896 | BFD_RELOC_8_PCREL); | |
11897 | fixP->fx_signed = 1; | |
412167cb AM |
11898 | break; |
11899 | } | |
93c2a809 | 11900 | |
24eab124 | 11901 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 11902 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 11903 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 11904 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
11905 | /* We've added an opcode byte. */ |
11906 | fragP->fr_fix += 1 + size; | |
062cd5e7 AS |
11907 | fix_new (fragP, old_fr_fix + 1, size, |
11908 | fragP->fr_symbol, | |
11909 | fragP->fr_offset, 1, | |
11910 | reloc_type); | |
252b5132 | 11911 | break; |
fddf5b5b AM |
11912 | |
11913 | default: | |
11914 | BAD_CASE (fragP->fr_subtype); | |
11915 | break; | |
252b5132 RH |
11916 | } |
11917 | frag_wane (fragP); | |
ee7fcc42 | 11918 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 11919 | } |
93c2a809 | 11920 | |
93c2a809 AM |
11921 | /* Guess size depending on current relax state. Initially the relax |
11922 | state will correspond to a short jump and we return 1, because | |
11923 | the variable part of the frag (the branch offset) is one byte | |
11924 | long. However, we can relax a section more than once and in that | |
11925 | case we must either set fr_subtype back to the unrelaxed state, | |
11926 | or return the value for the appropriate branch. */ | |
11927 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
11928 | } |
11929 | ||
47926f60 KH |
11930 | /* Called after relax() is finished. |
11931 | ||
11932 | In: Address of frag. | |
11933 | fr_type == rs_machine_dependent. | |
11934 | fr_subtype is what the address relaxed to. | |
11935 | ||
11936 | Out: Any fixSs and constants are set up. | |
11937 | Caller will turn frag into a ".space 0". */ | |
11938 | ||
252b5132 | 11939 | void |
7016a5d5 TG |
11940 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT sec ATTRIBUTE_UNUSED, |
11941 | fragS *fragP) | |
252b5132 | 11942 | { |
29b0f896 | 11943 | unsigned char *opcode; |
252b5132 | 11944 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
11945 | offsetT target_address; |
11946 | offsetT opcode_address; | |
252b5132 | 11947 | unsigned int extension = 0; |
847f7ad4 | 11948 | offsetT displacement_from_opcode_start; |
252b5132 | 11949 | |
e379e5f3 L |
11950 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
11951 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING | |
11952 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
11953 | { | |
11954 | /* Generate nop padding. */ | |
11955 | unsigned int size = fragP->tc_frag_data.length; | |
11956 | if (size) | |
11957 | { | |
11958 | if (size > fragP->tc_frag_data.max_bytes) | |
11959 | abort (); | |
11960 | ||
11961 | if (flag_debug) | |
11962 | { | |
11963 | const char *msg; | |
11964 | const char *branch = "branch"; | |
11965 | const char *prefix = ""; | |
11966 | fragS *padding_fragP; | |
11967 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
11968 | == BRANCH_PREFIX) | |
11969 | { | |
11970 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
11971 | switch (fragP->tc_frag_data.default_prefix) | |
11972 | { | |
11973 | default: | |
11974 | abort (); | |
11975 | break; | |
11976 | case CS_PREFIX_OPCODE: | |
11977 | prefix = " cs"; | |
11978 | break; | |
11979 | case DS_PREFIX_OPCODE: | |
11980 | prefix = " ds"; | |
11981 | break; | |
11982 | case ES_PREFIX_OPCODE: | |
11983 | prefix = " es"; | |
11984 | break; | |
11985 | case FS_PREFIX_OPCODE: | |
11986 | prefix = " fs"; | |
11987 | break; | |
11988 | case GS_PREFIX_OPCODE: | |
11989 | prefix = " gs"; | |
11990 | break; | |
11991 | case SS_PREFIX_OPCODE: | |
11992 | prefix = " ss"; | |
11993 | break; | |
11994 | } | |
11995 | if (padding_fragP) | |
11996 | msg = _("%s:%u: add %d%s at 0x%llx to align " | |
11997 | "%s within %d-byte boundary\n"); | |
11998 | else | |
11999 | msg = _("%s:%u: add additional %d%s at 0x%llx to " | |
12000 | "align %s within %d-byte boundary\n"); | |
12001 | } | |
12002 | else | |
12003 | { | |
12004 | padding_fragP = fragP; | |
12005 | msg = _("%s:%u: add %d%s-byte nop at 0x%llx to align " | |
12006 | "%s within %d-byte boundary\n"); | |
12007 | } | |
12008 | ||
12009 | if (padding_fragP) | |
12010 | switch (padding_fragP->tc_frag_data.branch_type) | |
12011 | { | |
12012 | case align_branch_jcc: | |
12013 | branch = "jcc"; | |
12014 | break; | |
12015 | case align_branch_fused: | |
12016 | branch = "fused jcc"; | |
12017 | break; | |
12018 | case align_branch_jmp: | |
12019 | branch = "jmp"; | |
12020 | break; | |
12021 | case align_branch_call: | |
12022 | branch = "call"; | |
12023 | break; | |
12024 | case align_branch_indirect: | |
12025 | branch = "indiret branch"; | |
12026 | break; | |
12027 | case align_branch_ret: | |
12028 | branch = "ret"; | |
12029 | break; | |
12030 | default: | |
12031 | break; | |
12032 | } | |
12033 | ||
12034 | fprintf (stdout, msg, | |
12035 | fragP->fr_file, fragP->fr_line, size, prefix, | |
12036 | (long long) fragP->fr_address, branch, | |
12037 | 1 << align_branch_power); | |
12038 | } | |
12039 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12040 | memset (fragP->fr_opcode, | |
12041 | fragP->tc_frag_data.default_prefix, size); | |
12042 | else | |
12043 | i386_generate_nops (fragP, (char *) fragP->fr_opcode, | |
12044 | size, 0); | |
12045 | fragP->fr_fix += size; | |
12046 | } | |
12047 | return; | |
12048 | } | |
12049 | ||
252b5132 RH |
12050 | opcode = (unsigned char *) fragP->fr_opcode; |
12051 | ||
47926f60 | 12052 | /* Address we want to reach in file space. */ |
252b5132 | 12053 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 12054 | |
47926f60 | 12055 | /* Address opcode resides at in file space. */ |
252b5132 RH |
12056 | opcode_address = fragP->fr_address + fragP->fr_fix; |
12057 | ||
47926f60 | 12058 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
12059 | displacement_from_opcode_start = target_address - opcode_address; |
12060 | ||
fddf5b5b | 12061 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 12062 | { |
47926f60 KH |
12063 | /* Don't have to change opcode. */ |
12064 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 12065 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
12066 | } |
12067 | else | |
12068 | { | |
12069 | if (no_cond_jump_promotion | |
12070 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
12071 | as_warn_where (fragP->fr_file, fragP->fr_line, |
12072 | _("long jump required")); | |
252b5132 | 12073 | |
fddf5b5b AM |
12074 | switch (fragP->fr_subtype) |
12075 | { | |
12076 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
12077 | extension = 4; /* 1 opcode + 4 displacement */ | |
12078 | opcode[0] = 0xe9; | |
12079 | where_to_put_displacement = &opcode[1]; | |
12080 | break; | |
252b5132 | 12081 | |
fddf5b5b AM |
12082 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
12083 | extension = 2; /* 1 opcode + 2 displacement */ | |
12084 | opcode[0] = 0xe9; | |
12085 | where_to_put_displacement = &opcode[1]; | |
12086 | break; | |
252b5132 | 12087 | |
fddf5b5b AM |
12088 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
12089 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
12090 | extension = 5; /* 2 opcode + 4 displacement */ | |
12091 | opcode[1] = opcode[0] + 0x10; | |
12092 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12093 | where_to_put_displacement = &opcode[2]; | |
12094 | break; | |
252b5132 | 12095 | |
fddf5b5b AM |
12096 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
12097 | extension = 3; /* 2 opcode + 2 displacement */ | |
12098 | opcode[1] = opcode[0] + 0x10; | |
12099 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12100 | where_to_put_displacement = &opcode[2]; | |
12101 | break; | |
252b5132 | 12102 | |
fddf5b5b AM |
12103 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
12104 | extension = 4; | |
12105 | opcode[0] ^= 1; | |
12106 | opcode[1] = 3; | |
12107 | opcode[2] = 0xe9; | |
12108 | where_to_put_displacement = &opcode[3]; | |
12109 | break; | |
12110 | ||
12111 | default: | |
12112 | BAD_CASE (fragP->fr_subtype); | |
12113 | break; | |
12114 | } | |
252b5132 | 12115 | } |
fddf5b5b | 12116 | |
7b81dfbb AJ |
12117 | /* If size if less then four we are sure that the operand fits, |
12118 | but if it's 4, then it could be that the displacement is larger | |
12119 | then -/+ 2GB. */ | |
12120 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
12121 | && object_64bit | |
12122 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
12123 | + ((addressT) 1 << 31)) |
12124 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
12125 | { |
12126 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
12127 | _("jump target out of range")); | |
12128 | /* Make us emit 0. */ | |
12129 | displacement_from_opcode_start = extension; | |
12130 | } | |
47926f60 | 12131 | /* Now put displacement after opcode. */ |
252b5132 RH |
12132 | md_number_to_chars ((char *) where_to_put_displacement, |
12133 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 12134 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
12135 | fragP->fr_fix += extension; |
12136 | } | |
12137 | \f | |
7016a5d5 | 12138 | /* Apply a fixup (fixP) to segment data, once it has been determined |
252b5132 RH |
12139 | by our caller that we have all the info we need to fix it up. |
12140 | ||
7016a5d5 TG |
12141 | Parameter valP is the pointer to the value of the bits. |
12142 | ||
252b5132 RH |
12143 | On the 386, immediates, displacements, and data pointers are all in |
12144 | the same (little-endian) format, so we don't need to care about which | |
12145 | we are handling. */ | |
12146 | ||
94f592af | 12147 | void |
7016a5d5 | 12148 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 12149 | { |
94f592af | 12150 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 12151 | valueT value = *valP; |
252b5132 | 12152 | |
f86103b7 | 12153 | #if !defined (TE_Mach) |
93382f6d AM |
12154 | if (fixP->fx_pcrel) |
12155 | { | |
12156 | switch (fixP->fx_r_type) | |
12157 | { | |
5865bb77 ILT |
12158 | default: |
12159 | break; | |
12160 | ||
d6ab8113 JB |
12161 | case BFD_RELOC_64: |
12162 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
12163 | break; | |
93382f6d | 12164 | case BFD_RELOC_32: |
ae8887b5 | 12165 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
12166 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
12167 | break; | |
12168 | case BFD_RELOC_16: | |
12169 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
12170 | break; | |
12171 | case BFD_RELOC_8: | |
12172 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
12173 | break; | |
12174 | } | |
12175 | } | |
252b5132 | 12176 | |
a161fe53 | 12177 | if (fixP->fx_addsy != NULL |
31312f95 | 12178 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 12179 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 | 12180 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
d258b828 | 12181 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) |
31312f95 | 12182 | && !use_rela_relocations) |
252b5132 | 12183 | { |
31312f95 AM |
12184 | /* This is a hack. There should be a better way to handle this. |
12185 | This covers for the fact that bfd_install_relocation will | |
12186 | subtract the current location (for partial_inplace, PC relative | |
12187 | relocations); see more below. */ | |
252b5132 | 12188 | #ifndef OBJ_AOUT |
718ddfc0 | 12189 | if (IS_ELF |
252b5132 RH |
12190 | #ifdef TE_PE |
12191 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
12192 | #endif | |
12193 | ) | |
12194 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12195 | #endif | |
12196 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 12197 | if (IS_ELF) |
252b5132 | 12198 | { |
6539b54b | 12199 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 12200 | |
6539b54b | 12201 | if ((sym_seg == seg |
2f66722d | 12202 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 12203 | && sym_seg != absolute_section)) |
af65af87 | 12204 | && !generic_force_reloc (fixP)) |
2f66722d AM |
12205 | { |
12206 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
12207 | bfd_install_relocation subtracts them out again. I think |
12208 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
12209 | it. FIXME. */ |
12210 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12211 | } | |
252b5132 RH |
12212 | } |
12213 | #endif | |
12214 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
12215 | /* For some reason, the PE format does not store a |
12216 | section address offset for a PC relative symbol. */ | |
12217 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 12218 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
12219 | value += md_pcrel_from (fixP); |
12220 | #endif | |
12221 | } | |
fbeb56a4 | 12222 | #if defined (OBJ_COFF) && defined (TE_PE) |
f01c1a09 NC |
12223 | if (fixP->fx_addsy != NULL |
12224 | && S_IS_WEAK (fixP->fx_addsy) | |
12225 | /* PR 16858: Do not modify weak function references. */ | |
12226 | && ! fixP->fx_pcrel) | |
fbeb56a4 | 12227 | { |
296a8689 NC |
12228 | #if !defined (TE_PEP) |
12229 | /* For x86 PE weak function symbols are neither PC-relative | |
12230 | nor do they set S_IS_FUNCTION. So the only reliable way | |
12231 | to detect them is to check the flags of their containing | |
12232 | section. */ | |
12233 | if (S_GET_SEGMENT (fixP->fx_addsy) != NULL | |
12234 | && S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_CODE) | |
12235 | ; | |
12236 | else | |
12237 | #endif | |
fbeb56a4 DK |
12238 | value -= S_GET_VALUE (fixP->fx_addsy); |
12239 | } | |
12240 | #endif | |
252b5132 RH |
12241 | |
12242 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 12243 | and we must not disappoint it. */ |
252b5132 | 12244 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 12245 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
12246 | switch (fixP->fx_r_type) |
12247 | { | |
12248 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 12249 | case BFD_RELOC_X86_64_PLT32: |
b9519cfe L |
12250 | /* Make the jump instruction point to the address of the operand. |
12251 | At runtime we merely add the offset to the actual PLT entry. | |
12252 | NB: Subtract the offset size only for jump instructions. */ | |
12253 | if (fixP->fx_pcrel) | |
12254 | value = -4; | |
47926f60 | 12255 | break; |
31312f95 | 12256 | |
13ae64f3 JJ |
12257 | case BFD_RELOC_386_TLS_GD: |
12258 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 12259 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
12260 | case BFD_RELOC_386_TLS_IE: |
12261 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 12262 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
12263 | case BFD_RELOC_X86_64_TLSGD: |
12264 | case BFD_RELOC_X86_64_TLSLD: | |
12265 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 12266 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
12267 | value = 0; /* Fully resolved at runtime. No addend. */ |
12268 | /* Fallthrough */ | |
12269 | case BFD_RELOC_386_TLS_LE: | |
12270 | case BFD_RELOC_386_TLS_LDO_32: | |
12271 | case BFD_RELOC_386_TLS_LE_32: | |
12272 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 12273 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 12274 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 12275 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
12276 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
12277 | break; | |
12278 | ||
67a4f2b7 AO |
12279 | case BFD_RELOC_386_TLS_DESC_CALL: |
12280 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
12281 | value = 0; /* Fully resolved at runtime. No addend. */ | |
12282 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
12283 | fixP->fx_done = 0; | |
12284 | return; | |
12285 | ||
47926f60 KH |
12286 | case BFD_RELOC_VTABLE_INHERIT: |
12287 | case BFD_RELOC_VTABLE_ENTRY: | |
12288 | fixP->fx_done = 0; | |
94f592af | 12289 | return; |
47926f60 KH |
12290 | |
12291 | default: | |
12292 | break; | |
12293 | } | |
12294 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
c6682705 | 12295 | *valP = value; |
f86103b7 | 12296 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 12297 | |
3e73aa7c | 12298 | /* Are we finished with this relocation now? */ |
c6682705 | 12299 | if (fixP->fx_addsy == NULL) |
3e73aa7c | 12300 | fixP->fx_done = 1; |
fbeb56a4 DK |
12301 | #if defined (OBJ_COFF) && defined (TE_PE) |
12302 | else if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy)) | |
12303 | { | |
12304 | fixP->fx_done = 0; | |
12305 | /* Remember value for tc_gen_reloc. */ | |
12306 | fixP->fx_addnumber = value; | |
12307 | /* Clear out the frag for now. */ | |
12308 | value = 0; | |
12309 | } | |
12310 | #endif | |
3e73aa7c JH |
12311 | else if (use_rela_relocations) |
12312 | { | |
12313 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
12314 | /* Remember value for tc_gen_reloc. */ |
12315 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
12316 | value = 0; |
12317 | } | |
f86103b7 | 12318 | |
94f592af | 12319 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 12320 | } |
252b5132 | 12321 | \f |
6d4af3c2 | 12322 | const char * |
499ac353 | 12323 | md_atof (int type, char *litP, int *sizeP) |
252b5132 | 12324 | { |
499ac353 NC |
12325 | /* This outputs the LITTLENUMs in REVERSE order; |
12326 | in accord with the bigendian 386. */ | |
12327 | return ieee_md_atof (type, litP, sizeP, FALSE); | |
252b5132 RH |
12328 | } |
12329 | \f | |
2d545b82 | 12330 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 12331 | |
252b5132 | 12332 | static char * |
e3bb37b5 | 12333 | output_invalid (int c) |
252b5132 | 12334 | { |
3882b010 | 12335 | if (ISPRINT (c)) |
f9f21a03 L |
12336 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
12337 | "'%c'", c); | |
252b5132 | 12338 | else |
f9f21a03 | 12339 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 12340 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
12341 | return output_invalid_buf; |
12342 | } | |
12343 | ||
af6bdddf | 12344 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
12345 | |
12346 | static const reg_entry * | |
4d1bb795 | 12347 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 12348 | { |
af6bdddf AM |
12349 | char *s = reg_string; |
12350 | char *p; | |
252b5132 RH |
12351 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
12352 | const reg_entry *r; | |
12353 | ||
12354 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
12355 | if (*s == REGISTER_PREFIX) | |
12356 | ++s; | |
12357 | ||
12358 | if (is_space_char (*s)) | |
12359 | ++s; | |
12360 | ||
12361 | p = reg_name_given; | |
af6bdddf | 12362 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
12363 | { |
12364 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
12365 | return (const reg_entry *) NULL; |
12366 | s++; | |
252b5132 RH |
12367 | } |
12368 | ||
6588847e DN |
12369 | /* For naked regs, make sure that we are not dealing with an identifier. |
12370 | This prevents confusing an identifier like `eax_var' with register | |
12371 | `eax'. */ | |
12372 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
12373 | return (const reg_entry *) NULL; | |
12374 | ||
af6bdddf | 12375 | *end_op = s; |
252b5132 RH |
12376 | |
12377 | r = (const reg_entry *) hash_find (reg_hash, reg_name_given); | |
12378 | ||
5f47d35b | 12379 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
47926f60 | 12380 | if (r == i386_regtab /* %st is first entry of table */) |
5f47d35b | 12381 | { |
0e0eea78 JB |
12382 | if (!cpu_arch_flags.bitfield.cpu8087 |
12383 | && !cpu_arch_flags.bitfield.cpu287 | |
12384 | && !cpu_arch_flags.bitfield.cpu387) | |
12385 | return (const reg_entry *) NULL; | |
12386 | ||
5f47d35b AM |
12387 | if (is_space_char (*s)) |
12388 | ++s; | |
12389 | if (*s == '(') | |
12390 | { | |
af6bdddf | 12391 | ++s; |
5f47d35b AM |
12392 | if (is_space_char (*s)) |
12393 | ++s; | |
12394 | if (*s >= '0' && *s <= '7') | |
12395 | { | |
db557034 | 12396 | int fpr = *s - '0'; |
af6bdddf | 12397 | ++s; |
5f47d35b AM |
12398 | if (is_space_char (*s)) |
12399 | ++s; | |
12400 | if (*s == ')') | |
12401 | { | |
12402 | *end_op = s + 1; | |
1e9cc1c2 | 12403 | r = (const reg_entry *) hash_find (reg_hash, "st(0)"); |
db557034 AM |
12404 | know (r); |
12405 | return r + fpr; | |
5f47d35b | 12406 | } |
5f47d35b | 12407 | } |
47926f60 | 12408 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
12409 | return (const reg_entry *) NULL; |
12410 | } | |
12411 | } | |
12412 | ||
a60de03c JB |
12413 | if (r == NULL || allow_pseudo_reg) |
12414 | return r; | |
12415 | ||
0dfbf9d7 | 12416 | if (operand_type_all_zero (&r->reg_type)) |
a60de03c JB |
12417 | return (const reg_entry *) NULL; |
12418 | ||
dc821c5f | 12419 | if ((r->reg_type.bitfield.dword |
00cee14f | 12420 | || (r->reg_type.bitfield.class == SReg && r->reg_num > 3) |
4a5c67ed JB |
12421 | || r->reg_type.bitfield.class == RegCR |
12422 | || r->reg_type.bitfield.class == RegDR | |
12423 | || r->reg_type.bitfield.class == RegTR) | |
192dc9c6 JB |
12424 | && !cpu_arch_flags.bitfield.cpui386) |
12425 | return (const reg_entry *) NULL; | |
12426 | ||
3528c362 | 12427 | if (r->reg_type.bitfield.class == RegMMX && !cpu_arch_flags.bitfield.cpummx) |
192dc9c6 JB |
12428 | return (const reg_entry *) NULL; |
12429 | ||
6e041cf4 JB |
12430 | if (!cpu_arch_flags.bitfield.cpuavx512f) |
12431 | { | |
f74a6307 JB |
12432 | if (r->reg_type.bitfield.zmmword |
12433 | || r->reg_type.bitfield.class == RegMask) | |
6e041cf4 | 12434 | return (const reg_entry *) NULL; |
40f12533 | 12435 | |
6e041cf4 JB |
12436 | if (!cpu_arch_flags.bitfield.cpuavx) |
12437 | { | |
12438 | if (r->reg_type.bitfield.ymmword) | |
12439 | return (const reg_entry *) NULL; | |
1848e567 | 12440 | |
6e041cf4 JB |
12441 | if (!cpu_arch_flags.bitfield.cpusse && r->reg_type.bitfield.xmmword) |
12442 | return (const reg_entry *) NULL; | |
12443 | } | |
12444 | } | |
43234a1e | 12445 | |
f74a6307 | 12446 | if (r->reg_type.bitfield.class == RegBND && !cpu_arch_flags.bitfield.cpumpx) |
1adf7f56 JB |
12447 | return (const reg_entry *) NULL; |
12448 | ||
db51cc60 | 12449 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ |
e968fc9b | 12450 | if (!allow_index_reg && r->reg_num == RegIZ) |
db51cc60 L |
12451 | return (const reg_entry *) NULL; |
12452 | ||
1d3f8286 JB |
12453 | /* Upper 16 vector registers are only available with VREX in 64bit |
12454 | mode, and require EVEX encoding. */ | |
12455 | if (r->reg_flags & RegVRex) | |
43234a1e | 12456 | { |
e951d5ca | 12457 | if (!cpu_arch_flags.bitfield.cpuavx512f |
43234a1e L |
12458 | || flag_code != CODE_64BIT) |
12459 | return (const reg_entry *) NULL; | |
1d3f8286 JB |
12460 | |
12461 | i.vec_encoding = vex_encoding_evex; | |
43234a1e L |
12462 | } |
12463 | ||
4787f4a5 | 12464 | if (((r->reg_flags & (RegRex64 | RegRex)) || r->reg_type.bitfield.qword) |
4a5c67ed | 12465 | && (!cpu_arch_flags.bitfield.cpulm || r->reg_type.bitfield.class != RegCR) |
1ae00879 | 12466 | && flag_code != CODE_64BIT) |
20f0a1fc | 12467 | return (const reg_entry *) NULL; |
1ae00879 | 12468 | |
00cee14f JB |
12469 | if (r->reg_type.bitfield.class == SReg && r->reg_num == RegFlat |
12470 | && !intel_syntax) | |
b7240065 JB |
12471 | return (const reg_entry *) NULL; |
12472 | ||
252b5132 RH |
12473 | return r; |
12474 | } | |
4d1bb795 JB |
12475 | |
12476 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
12477 | ||
12478 | static const reg_entry * | |
12479 | parse_register (char *reg_string, char **end_op) | |
12480 | { | |
12481 | const reg_entry *r; | |
12482 | ||
12483 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
12484 | r = parse_real_register (reg_string, end_op); | |
12485 | else | |
12486 | r = NULL; | |
12487 | if (!r) | |
12488 | { | |
12489 | char *save = input_line_pointer; | |
12490 | char c; | |
12491 | symbolS *symbolP; | |
12492 | ||
12493 | input_line_pointer = reg_string; | |
d02603dc | 12494 | c = get_symbol_name (®_string); |
4d1bb795 JB |
12495 | symbolP = symbol_find (reg_string); |
12496 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) | |
12497 | { | |
12498 | const expressionS *e = symbol_get_value_expression (symbolP); | |
12499 | ||
0398aac5 | 12500 | know (e->X_op == O_register); |
4eed87de | 12501 | know (e->X_add_number >= 0 |
c3fe08fa | 12502 | && (valueT) e->X_add_number < i386_regtab_size); |
4d1bb795 | 12503 | r = i386_regtab + e->X_add_number; |
d3bb6b49 | 12504 | if ((r->reg_flags & RegVRex)) |
86fa6981 | 12505 | i.vec_encoding = vex_encoding_evex; |
4d1bb795 JB |
12506 | *end_op = input_line_pointer; |
12507 | } | |
12508 | *input_line_pointer = c; | |
12509 | input_line_pointer = save; | |
12510 | } | |
12511 | return r; | |
12512 | } | |
12513 | ||
12514 | int | |
12515 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
12516 | { | |
12517 | const reg_entry *r; | |
12518 | char *end = input_line_pointer; | |
12519 | ||
12520 | *end = *nextcharP; | |
12521 | r = parse_register (name, &input_line_pointer); | |
12522 | if (r && end <= input_line_pointer) | |
12523 | { | |
12524 | *nextcharP = *input_line_pointer; | |
12525 | *input_line_pointer = 0; | |
12526 | e->X_op = O_register; | |
12527 | e->X_add_number = r - i386_regtab; | |
12528 | return 1; | |
12529 | } | |
12530 | input_line_pointer = end; | |
12531 | *end = 0; | |
ee86248c | 12532 | return intel_syntax ? i386_intel_parse_name (name, e) : 0; |
4d1bb795 JB |
12533 | } |
12534 | ||
12535 | void | |
12536 | md_operand (expressionS *e) | |
12537 | { | |
ee86248c JB |
12538 | char *end; |
12539 | const reg_entry *r; | |
4d1bb795 | 12540 | |
ee86248c JB |
12541 | switch (*input_line_pointer) |
12542 | { | |
12543 | case REGISTER_PREFIX: | |
12544 | r = parse_real_register (input_line_pointer, &end); | |
4d1bb795 JB |
12545 | if (r) |
12546 | { | |
12547 | e->X_op = O_register; | |
12548 | e->X_add_number = r - i386_regtab; | |
12549 | input_line_pointer = end; | |
12550 | } | |
ee86248c JB |
12551 | break; |
12552 | ||
12553 | case '[': | |
9c2799c2 | 12554 | gas_assert (intel_syntax); |
ee86248c JB |
12555 | end = input_line_pointer++; |
12556 | expression (e); | |
12557 | if (*input_line_pointer == ']') | |
12558 | { | |
12559 | ++input_line_pointer; | |
12560 | e->X_op_symbol = make_expr_symbol (e); | |
12561 | e->X_add_symbol = NULL; | |
12562 | e->X_add_number = 0; | |
12563 | e->X_op = O_index; | |
12564 | } | |
12565 | else | |
12566 | { | |
12567 | e->X_op = O_absent; | |
12568 | input_line_pointer = end; | |
12569 | } | |
12570 | break; | |
4d1bb795 JB |
12571 | } |
12572 | } | |
12573 | ||
252b5132 | 12574 | \f |
4cc782b5 | 12575 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
b6f8c7c4 | 12576 | const char *md_shortopts = "kVQ:sqnO::"; |
252b5132 | 12577 | #else |
b6f8c7c4 | 12578 | const char *md_shortopts = "qnO::"; |
252b5132 | 12579 | #endif |
6e0b89ee | 12580 | |
3e73aa7c | 12581 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
12582 | #define OPTION_64 (OPTION_MD_BASE + 1) |
12583 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
12584 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
12585 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
1efbbeb4 L |
12586 | #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5) |
12587 | #define OPTION_MSYNTAX (OPTION_MD_BASE + 6) | |
12588 | #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7) | |
12589 | #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8) | |
bd5dea88 | 12590 | #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9) |
c0f3af97 | 12591 | #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10) |
daf50ae7 | 12592 | #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11) |
7bab8ab5 JB |
12593 | #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12) |
12594 | #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13) | |
12595 | #define OPTION_X32 (OPTION_MD_BASE + 14) | |
7e8b059b | 12596 | #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15) |
43234a1e L |
12597 | #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16) |
12598 | #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17) | |
167ad85b | 12599 | #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18) |
d1982f93 | 12600 | #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19) |
d3d3c6db | 12601 | #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20) |
8dcea932 | 12602 | #define OPTION_MSHARED (OPTION_MD_BASE + 21) |
5db04b09 L |
12603 | #define OPTION_MAMD64 (OPTION_MD_BASE + 22) |
12604 | #define OPTION_MINTEL64 (OPTION_MD_BASE + 23) | |
e4e00185 | 12605 | #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24) |
b4a3a7b4 | 12606 | #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25) |
03751133 | 12607 | #define OPTION_MVEXWIG (OPTION_MD_BASE + 26) |
e379e5f3 L |
12608 | #define OPTION_MALIGN_BRANCH_BOUNDARY (OPTION_MD_BASE + 27) |
12609 | #define OPTION_MALIGN_BRANCH_PREFIX_SIZE (OPTION_MD_BASE + 28) | |
12610 | #define OPTION_MALIGN_BRANCH (OPTION_MD_BASE + 29) | |
76cf450b | 12611 | #define OPTION_MBRANCHES_WITH_32B_BOUNDARIES (OPTION_MD_BASE + 30) |
ae531041 L |
12612 | #define OPTION_MLFENCE_AFTER_LOAD (OPTION_MD_BASE + 31) |
12613 | #define OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH (OPTION_MD_BASE + 32) | |
12614 | #define OPTION_MLFENCE_BEFORE_RET (OPTION_MD_BASE + 33) | |
b3b91714 | 12615 | |
99ad8390 NC |
12616 | struct option md_longopts[] = |
12617 | { | |
3e73aa7c | 12618 | {"32", no_argument, NULL, OPTION_32}, |
321098a5 | 12619 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 12620 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c | 12621 | {"64", no_argument, NULL, OPTION_64}, |
351f65ca L |
12622 | #endif |
12623 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
570561f7 | 12624 | {"x32", no_argument, NULL, OPTION_X32}, |
8dcea932 | 12625 | {"mshared", no_argument, NULL, OPTION_MSHARED}, |
b4a3a7b4 | 12626 | {"mx86-used-note", required_argument, NULL, OPTION_X86_USED_NOTE}, |
6e0b89ee | 12627 | #endif |
b3b91714 | 12628 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
12629 | {"march", required_argument, NULL, OPTION_MARCH}, |
12630 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
1efbbeb4 L |
12631 | {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC}, |
12632 | {"msyntax", required_argument, NULL, OPTION_MSYNTAX}, | |
12633 | {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG}, | |
12634 | {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG}, | |
c0f3af97 | 12635 | {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX}, |
daf50ae7 | 12636 | {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK}, |
7bab8ab5 | 12637 | {"moperand-check", required_argument, NULL, OPTION_MOPERAND_CHECK}, |
539f890d | 12638 | {"mavxscalar", required_argument, NULL, OPTION_MAVXSCALAR}, |
03751133 | 12639 | {"mvexwig", required_argument, NULL, OPTION_MVEXWIG}, |
7e8b059b | 12640 | {"madd-bnd-prefix", no_argument, NULL, OPTION_MADD_BND_PREFIX}, |
43234a1e L |
12641 | {"mevexlig", required_argument, NULL, OPTION_MEVEXLIG}, |
12642 | {"mevexwig", required_argument, NULL, OPTION_MEVEXWIG}, | |
167ad85b TG |
12643 | # if defined (TE_PE) || defined (TE_PEP) |
12644 | {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ}, | |
12645 | #endif | |
d1982f93 | 12646 | {"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX}, |
e4e00185 | 12647 | {"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD}, |
0cb4071e | 12648 | {"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS}, |
d3d3c6db | 12649 | {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG}, |
e379e5f3 L |
12650 | {"malign-branch-boundary", required_argument, NULL, OPTION_MALIGN_BRANCH_BOUNDARY}, |
12651 | {"malign-branch-prefix-size", required_argument, NULL, OPTION_MALIGN_BRANCH_PREFIX_SIZE}, | |
12652 | {"malign-branch", required_argument, NULL, OPTION_MALIGN_BRANCH}, | |
76cf450b | 12653 | {"mbranches-within-32B-boundaries", no_argument, NULL, OPTION_MBRANCHES_WITH_32B_BOUNDARIES}, |
ae531041 L |
12654 | {"mlfence-after-load", required_argument, NULL, OPTION_MLFENCE_AFTER_LOAD}, |
12655 | {"mlfence-before-indirect-branch", required_argument, NULL, | |
12656 | OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH}, | |
12657 | {"mlfence-before-ret", required_argument, NULL, OPTION_MLFENCE_BEFORE_RET}, | |
5db04b09 L |
12658 | {"mamd64", no_argument, NULL, OPTION_MAMD64}, |
12659 | {"mintel64", no_argument, NULL, OPTION_MINTEL64}, | |
252b5132 RH |
12660 | {NULL, no_argument, NULL, 0} |
12661 | }; | |
12662 | size_t md_longopts_size = sizeof (md_longopts); | |
12663 | ||
12664 | int | |
17b9d67d | 12665 | md_parse_option (int c, const char *arg) |
252b5132 | 12666 | { |
91d6fa6a | 12667 | unsigned int j; |
e379e5f3 | 12668 | char *arch, *next, *saved, *type; |
9103f4f4 | 12669 | |
252b5132 RH |
12670 | switch (c) |
12671 | { | |
12b55ccc L |
12672 | case 'n': |
12673 | optimize_align_code = 0; | |
12674 | break; | |
12675 | ||
a38cf1db AM |
12676 | case 'q': |
12677 | quiet_warnings = 1; | |
252b5132 RH |
12678 | break; |
12679 | ||
12680 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
12681 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
12682 | should be emitted or not. FIXME: Not implemented. */ | |
12683 | case 'Q': | |
d4693039 JB |
12684 | if ((arg[0] != 'y' && arg[0] != 'n') || arg[1]) |
12685 | return 0; | |
252b5132 RH |
12686 | break; |
12687 | ||
12688 | /* -V: SVR4 argument to print version ID. */ | |
12689 | case 'V': | |
12690 | print_version_id (); | |
12691 | break; | |
12692 | ||
a38cf1db AM |
12693 | /* -k: Ignore for FreeBSD compatibility. */ |
12694 | case 'k': | |
252b5132 | 12695 | break; |
4cc782b5 ILT |
12696 | |
12697 | case 's': | |
12698 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 12699 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 12700 | break; |
8dcea932 L |
12701 | |
12702 | case OPTION_MSHARED: | |
12703 | shared = 1; | |
12704 | break; | |
b4a3a7b4 L |
12705 | |
12706 | case OPTION_X86_USED_NOTE: | |
12707 | if (strcasecmp (arg, "yes") == 0) | |
12708 | x86_used_note = 1; | |
12709 | else if (strcasecmp (arg, "no") == 0) | |
12710 | x86_used_note = 0; | |
12711 | else | |
12712 | as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg); | |
12713 | break; | |
12714 | ||
12715 | ||
99ad8390 | 12716 | #endif |
321098a5 | 12717 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 12718 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c JH |
12719 | case OPTION_64: |
12720 | { | |
12721 | const char **list, **l; | |
12722 | ||
3e73aa7c JH |
12723 | list = bfd_target_list (); |
12724 | for (l = list; *l != NULL; l++) | |
8620418b | 12725 | if (CONST_STRNEQ (*l, "elf64-x86-64") |
99ad8390 NC |
12726 | || strcmp (*l, "coff-x86-64") == 0 |
12727 | || strcmp (*l, "pe-x86-64") == 0 | |
d382c579 TG |
12728 | || strcmp (*l, "pei-x86-64") == 0 |
12729 | || strcmp (*l, "mach-o-x86-64") == 0) | |
6e0b89ee AM |
12730 | { |
12731 | default_arch = "x86_64"; | |
12732 | break; | |
12733 | } | |
3e73aa7c | 12734 | if (*l == NULL) |
2b5d6a91 | 12735 | as_fatal (_("no compiled in support for x86_64")); |
3e73aa7c JH |
12736 | free (list); |
12737 | } | |
12738 | break; | |
12739 | #endif | |
252b5132 | 12740 | |
351f65ca | 12741 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
570561f7 | 12742 | case OPTION_X32: |
351f65ca L |
12743 | if (IS_ELF) |
12744 | { | |
12745 | const char **list, **l; | |
12746 | ||
12747 | list = bfd_target_list (); | |
12748 | for (l = list; *l != NULL; l++) | |
12749 | if (CONST_STRNEQ (*l, "elf32-x86-64")) | |
12750 | { | |
12751 | default_arch = "x86_64:32"; | |
12752 | break; | |
12753 | } | |
12754 | if (*l == NULL) | |
2b5d6a91 | 12755 | as_fatal (_("no compiled in support for 32bit x86_64")); |
351f65ca L |
12756 | free (list); |
12757 | } | |
12758 | else | |
12759 | as_fatal (_("32bit x86_64 is only supported for ELF")); | |
12760 | break; | |
12761 | #endif | |
12762 | ||
6e0b89ee AM |
12763 | case OPTION_32: |
12764 | default_arch = "i386"; | |
12765 | break; | |
12766 | ||
b3b91714 AM |
12767 | case OPTION_DIVIDE: |
12768 | #ifdef SVR4_COMMENT_CHARS | |
12769 | { | |
12770 | char *n, *t; | |
12771 | const char *s; | |
12772 | ||
add39d23 | 12773 | n = XNEWVEC (char, strlen (i386_comment_chars) + 1); |
b3b91714 AM |
12774 | t = n; |
12775 | for (s = i386_comment_chars; *s != '\0'; s++) | |
12776 | if (*s != '/') | |
12777 | *t++ = *s; | |
12778 | *t = '\0'; | |
12779 | i386_comment_chars = n; | |
12780 | } | |
12781 | #endif | |
12782 | break; | |
12783 | ||
9103f4f4 | 12784 | case OPTION_MARCH: |
293f5f65 L |
12785 | saved = xstrdup (arg); |
12786 | arch = saved; | |
12787 | /* Allow -march=+nosse. */ | |
12788 | if (*arch == '+') | |
12789 | arch++; | |
6305a203 | 12790 | do |
9103f4f4 | 12791 | { |
6305a203 | 12792 | if (*arch == '.') |
2b5d6a91 | 12793 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
12794 | next = strchr (arch, '+'); |
12795 | if (next) | |
12796 | *next++ = '\0'; | |
91d6fa6a | 12797 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 12798 | { |
91d6fa6a | 12799 | if (strcmp (arch, cpu_arch [j].name) == 0) |
ccc9c027 | 12800 | { |
6305a203 | 12801 | /* Processor. */ |
1ded5609 JB |
12802 | if (! cpu_arch[j].flags.bitfield.cpui386) |
12803 | continue; | |
12804 | ||
91d6fa6a | 12805 | cpu_arch_name = cpu_arch[j].name; |
6305a203 | 12806 | cpu_sub_arch_name = NULL; |
91d6fa6a NC |
12807 | cpu_arch_flags = cpu_arch[j].flags; |
12808 | cpu_arch_isa = cpu_arch[j].type; | |
12809 | cpu_arch_isa_flags = cpu_arch[j].flags; | |
6305a203 L |
12810 | if (!cpu_arch_tune_set) |
12811 | { | |
12812 | cpu_arch_tune = cpu_arch_isa; | |
12813 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
12814 | } | |
12815 | break; | |
12816 | } | |
91d6fa6a NC |
12817 | else if (*cpu_arch [j].name == '.' |
12818 | && strcmp (arch, cpu_arch [j].name + 1) == 0) | |
6305a203 | 12819 | { |
33eaf5de | 12820 | /* ISA extension. */ |
6305a203 | 12821 | i386_cpu_flags flags; |
309d3373 | 12822 | |
293f5f65 L |
12823 | flags = cpu_flags_or (cpu_arch_flags, |
12824 | cpu_arch[j].flags); | |
81486035 | 12825 | |
5b64d091 | 12826 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
6305a203 L |
12827 | { |
12828 | if (cpu_sub_arch_name) | |
12829 | { | |
12830 | char *name = cpu_sub_arch_name; | |
12831 | cpu_sub_arch_name = concat (name, | |
91d6fa6a | 12832 | cpu_arch[j].name, |
1bf57e9f | 12833 | (const char *) NULL); |
6305a203 L |
12834 | free (name); |
12835 | } | |
12836 | else | |
91d6fa6a | 12837 | cpu_sub_arch_name = xstrdup (cpu_arch[j].name); |
6305a203 | 12838 | cpu_arch_flags = flags; |
a586129e | 12839 | cpu_arch_isa_flags = flags; |
6305a203 | 12840 | } |
0089dace L |
12841 | else |
12842 | cpu_arch_isa_flags | |
12843 | = cpu_flags_or (cpu_arch_isa_flags, | |
12844 | cpu_arch[j].flags); | |
6305a203 | 12845 | break; |
ccc9c027 | 12846 | } |
9103f4f4 | 12847 | } |
6305a203 | 12848 | |
293f5f65 L |
12849 | if (j >= ARRAY_SIZE (cpu_arch)) |
12850 | { | |
33eaf5de | 12851 | /* Disable an ISA extension. */ |
293f5f65 L |
12852 | for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++) |
12853 | if (strcmp (arch, cpu_noarch [j].name) == 0) | |
12854 | { | |
12855 | i386_cpu_flags flags; | |
12856 | ||
12857 | flags = cpu_flags_and_not (cpu_arch_flags, | |
12858 | cpu_noarch[j].flags); | |
12859 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) | |
12860 | { | |
12861 | if (cpu_sub_arch_name) | |
12862 | { | |
12863 | char *name = cpu_sub_arch_name; | |
12864 | cpu_sub_arch_name = concat (arch, | |
12865 | (const char *) NULL); | |
12866 | free (name); | |
12867 | } | |
12868 | else | |
12869 | cpu_sub_arch_name = xstrdup (arch); | |
12870 | cpu_arch_flags = flags; | |
12871 | cpu_arch_isa_flags = flags; | |
12872 | } | |
12873 | break; | |
12874 | } | |
12875 | ||
12876 | if (j >= ARRAY_SIZE (cpu_noarch)) | |
12877 | j = ARRAY_SIZE (cpu_arch); | |
12878 | } | |
12879 | ||
91d6fa6a | 12880 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 12881 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
12882 | |
12883 | arch = next; | |
9103f4f4 | 12884 | } |
293f5f65 L |
12885 | while (next != NULL); |
12886 | free (saved); | |
9103f4f4 L |
12887 | break; |
12888 | ||
12889 | case OPTION_MTUNE: | |
12890 | if (*arg == '.') | |
2b5d6a91 | 12891 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
91d6fa6a | 12892 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 12893 | { |
91d6fa6a | 12894 | if (strcmp (arg, cpu_arch [j].name) == 0) |
9103f4f4 | 12895 | { |
ccc9c027 | 12896 | cpu_arch_tune_set = 1; |
91d6fa6a NC |
12897 | cpu_arch_tune = cpu_arch [j].type; |
12898 | cpu_arch_tune_flags = cpu_arch[j].flags; | |
9103f4f4 L |
12899 | break; |
12900 | } | |
12901 | } | |
91d6fa6a | 12902 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 12903 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
9103f4f4 L |
12904 | break; |
12905 | ||
1efbbeb4 L |
12906 | case OPTION_MMNEMONIC: |
12907 | if (strcasecmp (arg, "att") == 0) | |
12908 | intel_mnemonic = 0; | |
12909 | else if (strcasecmp (arg, "intel") == 0) | |
12910 | intel_mnemonic = 1; | |
12911 | else | |
2b5d6a91 | 12912 | as_fatal (_("invalid -mmnemonic= option: `%s'"), arg); |
1efbbeb4 L |
12913 | break; |
12914 | ||
12915 | case OPTION_MSYNTAX: | |
12916 | if (strcasecmp (arg, "att") == 0) | |
12917 | intel_syntax = 0; | |
12918 | else if (strcasecmp (arg, "intel") == 0) | |
12919 | intel_syntax = 1; | |
12920 | else | |
2b5d6a91 | 12921 | as_fatal (_("invalid -msyntax= option: `%s'"), arg); |
1efbbeb4 L |
12922 | break; |
12923 | ||
12924 | case OPTION_MINDEX_REG: | |
12925 | allow_index_reg = 1; | |
12926 | break; | |
12927 | ||
12928 | case OPTION_MNAKED_REG: | |
12929 | allow_naked_reg = 1; | |
12930 | break; | |
12931 | ||
c0f3af97 L |
12932 | case OPTION_MSSE2AVX: |
12933 | sse2avx = 1; | |
12934 | break; | |
12935 | ||
daf50ae7 L |
12936 | case OPTION_MSSE_CHECK: |
12937 | if (strcasecmp (arg, "error") == 0) | |
7bab8ab5 | 12938 | sse_check = check_error; |
daf50ae7 | 12939 | else if (strcasecmp (arg, "warning") == 0) |
7bab8ab5 | 12940 | sse_check = check_warning; |
daf50ae7 | 12941 | else if (strcasecmp (arg, "none") == 0) |
7bab8ab5 | 12942 | sse_check = check_none; |
daf50ae7 | 12943 | else |
2b5d6a91 | 12944 | as_fatal (_("invalid -msse-check= option: `%s'"), arg); |
daf50ae7 L |
12945 | break; |
12946 | ||
7bab8ab5 JB |
12947 | case OPTION_MOPERAND_CHECK: |
12948 | if (strcasecmp (arg, "error") == 0) | |
12949 | operand_check = check_error; | |
12950 | else if (strcasecmp (arg, "warning") == 0) | |
12951 | operand_check = check_warning; | |
12952 | else if (strcasecmp (arg, "none") == 0) | |
12953 | operand_check = check_none; | |
12954 | else | |
12955 | as_fatal (_("invalid -moperand-check= option: `%s'"), arg); | |
12956 | break; | |
12957 | ||
539f890d L |
12958 | case OPTION_MAVXSCALAR: |
12959 | if (strcasecmp (arg, "128") == 0) | |
12960 | avxscalar = vex128; | |
12961 | else if (strcasecmp (arg, "256") == 0) | |
12962 | avxscalar = vex256; | |
12963 | else | |
2b5d6a91 | 12964 | as_fatal (_("invalid -mavxscalar= option: `%s'"), arg); |
539f890d L |
12965 | break; |
12966 | ||
03751133 L |
12967 | case OPTION_MVEXWIG: |
12968 | if (strcmp (arg, "0") == 0) | |
40c9c8de | 12969 | vexwig = vexw0; |
03751133 | 12970 | else if (strcmp (arg, "1") == 0) |
40c9c8de | 12971 | vexwig = vexw1; |
03751133 L |
12972 | else |
12973 | as_fatal (_("invalid -mvexwig= option: `%s'"), arg); | |
12974 | break; | |
12975 | ||
7e8b059b L |
12976 | case OPTION_MADD_BND_PREFIX: |
12977 | add_bnd_prefix = 1; | |
12978 | break; | |
12979 | ||
43234a1e L |
12980 | case OPTION_MEVEXLIG: |
12981 | if (strcmp (arg, "128") == 0) | |
12982 | evexlig = evexl128; | |
12983 | else if (strcmp (arg, "256") == 0) | |
12984 | evexlig = evexl256; | |
12985 | else if (strcmp (arg, "512") == 0) | |
12986 | evexlig = evexl512; | |
12987 | else | |
12988 | as_fatal (_("invalid -mevexlig= option: `%s'"), arg); | |
12989 | break; | |
12990 | ||
d3d3c6db IT |
12991 | case OPTION_MEVEXRCIG: |
12992 | if (strcmp (arg, "rne") == 0) | |
12993 | evexrcig = rne; | |
12994 | else if (strcmp (arg, "rd") == 0) | |
12995 | evexrcig = rd; | |
12996 | else if (strcmp (arg, "ru") == 0) | |
12997 | evexrcig = ru; | |
12998 | else if (strcmp (arg, "rz") == 0) | |
12999 | evexrcig = rz; | |
13000 | else | |
13001 | as_fatal (_("invalid -mevexrcig= option: `%s'"), arg); | |
13002 | break; | |
13003 | ||
43234a1e L |
13004 | case OPTION_MEVEXWIG: |
13005 | if (strcmp (arg, "0") == 0) | |
13006 | evexwig = evexw0; | |
13007 | else if (strcmp (arg, "1") == 0) | |
13008 | evexwig = evexw1; | |
13009 | else | |
13010 | as_fatal (_("invalid -mevexwig= option: `%s'"), arg); | |
13011 | break; | |
13012 | ||
167ad85b TG |
13013 | # if defined (TE_PE) || defined (TE_PEP) |
13014 | case OPTION_MBIG_OBJ: | |
13015 | use_big_obj = 1; | |
13016 | break; | |
13017 | #endif | |
13018 | ||
d1982f93 | 13019 | case OPTION_MOMIT_LOCK_PREFIX: |
d022bddd IT |
13020 | if (strcasecmp (arg, "yes") == 0) |
13021 | omit_lock_prefix = 1; | |
13022 | else if (strcasecmp (arg, "no") == 0) | |
13023 | omit_lock_prefix = 0; | |
13024 | else | |
13025 | as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg); | |
13026 | break; | |
13027 | ||
e4e00185 AS |
13028 | case OPTION_MFENCE_AS_LOCK_ADD: |
13029 | if (strcasecmp (arg, "yes") == 0) | |
13030 | avoid_fence = 1; | |
13031 | else if (strcasecmp (arg, "no") == 0) | |
13032 | avoid_fence = 0; | |
13033 | else | |
13034 | as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg); | |
13035 | break; | |
13036 | ||
ae531041 L |
13037 | case OPTION_MLFENCE_AFTER_LOAD: |
13038 | if (strcasecmp (arg, "yes") == 0) | |
13039 | lfence_after_load = 1; | |
13040 | else if (strcasecmp (arg, "no") == 0) | |
13041 | lfence_after_load = 0; | |
13042 | else | |
13043 | as_fatal (_("invalid -mlfence-after-load= option: `%s'"), arg); | |
13044 | break; | |
13045 | ||
13046 | case OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH: | |
13047 | if (strcasecmp (arg, "all") == 0) | |
a09f656b | 13048 | { |
13049 | lfence_before_indirect_branch = lfence_branch_all; | |
13050 | if (lfence_before_ret == lfence_before_ret_none) | |
13051 | lfence_before_ret = lfence_before_ret_shl; | |
13052 | } | |
ae531041 L |
13053 | else if (strcasecmp (arg, "memory") == 0) |
13054 | lfence_before_indirect_branch = lfence_branch_memory; | |
13055 | else if (strcasecmp (arg, "register") == 0) | |
13056 | lfence_before_indirect_branch = lfence_branch_register; | |
13057 | else if (strcasecmp (arg, "none") == 0) | |
13058 | lfence_before_indirect_branch = lfence_branch_none; | |
13059 | else | |
13060 | as_fatal (_("invalid -mlfence-before-indirect-branch= option: `%s'"), | |
13061 | arg); | |
13062 | break; | |
13063 | ||
13064 | case OPTION_MLFENCE_BEFORE_RET: | |
13065 | if (strcasecmp (arg, "or") == 0) | |
13066 | lfence_before_ret = lfence_before_ret_or; | |
13067 | else if (strcasecmp (arg, "not") == 0) | |
13068 | lfence_before_ret = lfence_before_ret_not; | |
a09f656b | 13069 | else if (strcasecmp (arg, "shl") == 0 || strcasecmp (arg, "yes") == 0) |
13070 | lfence_before_ret = lfence_before_ret_shl; | |
ae531041 L |
13071 | else if (strcasecmp (arg, "none") == 0) |
13072 | lfence_before_ret = lfence_before_ret_none; | |
13073 | else | |
13074 | as_fatal (_("invalid -mlfence-before-ret= option: `%s'"), | |
13075 | arg); | |
13076 | break; | |
13077 | ||
0cb4071e L |
13078 | case OPTION_MRELAX_RELOCATIONS: |
13079 | if (strcasecmp (arg, "yes") == 0) | |
13080 | generate_relax_relocations = 1; | |
13081 | else if (strcasecmp (arg, "no") == 0) | |
13082 | generate_relax_relocations = 0; | |
13083 | else | |
13084 | as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg); | |
13085 | break; | |
13086 | ||
e379e5f3 L |
13087 | case OPTION_MALIGN_BRANCH_BOUNDARY: |
13088 | { | |
13089 | char *end; | |
13090 | long int align = strtoul (arg, &end, 0); | |
13091 | if (*end == '\0') | |
13092 | { | |
13093 | if (align == 0) | |
13094 | { | |
13095 | align_branch_power = 0; | |
13096 | break; | |
13097 | } | |
13098 | else if (align >= 16) | |
13099 | { | |
13100 | int align_power; | |
13101 | for (align_power = 0; | |
13102 | (align & 1) == 0; | |
13103 | align >>= 1, align_power++) | |
13104 | continue; | |
13105 | /* Limit alignment power to 31. */ | |
13106 | if (align == 1 && align_power < 32) | |
13107 | { | |
13108 | align_branch_power = align_power; | |
13109 | break; | |
13110 | } | |
13111 | } | |
13112 | } | |
13113 | as_fatal (_("invalid -malign-branch-boundary= value: %s"), arg); | |
13114 | } | |
13115 | break; | |
13116 | ||
13117 | case OPTION_MALIGN_BRANCH_PREFIX_SIZE: | |
13118 | { | |
13119 | char *end; | |
13120 | int align = strtoul (arg, &end, 0); | |
13121 | /* Some processors only support 5 prefixes. */ | |
13122 | if (*end == '\0' && align >= 0 && align < 6) | |
13123 | { | |
13124 | align_branch_prefix_size = align; | |
13125 | break; | |
13126 | } | |
13127 | as_fatal (_("invalid -malign-branch-prefix-size= value: %s"), | |
13128 | arg); | |
13129 | } | |
13130 | break; | |
13131 | ||
13132 | case OPTION_MALIGN_BRANCH: | |
13133 | align_branch = 0; | |
13134 | saved = xstrdup (arg); | |
13135 | type = saved; | |
13136 | do | |
13137 | { | |
13138 | next = strchr (type, '+'); | |
13139 | if (next) | |
13140 | *next++ = '\0'; | |
13141 | if (strcasecmp (type, "jcc") == 0) | |
13142 | align_branch |= align_branch_jcc_bit; | |
13143 | else if (strcasecmp (type, "fused") == 0) | |
13144 | align_branch |= align_branch_fused_bit; | |
13145 | else if (strcasecmp (type, "jmp") == 0) | |
13146 | align_branch |= align_branch_jmp_bit; | |
13147 | else if (strcasecmp (type, "call") == 0) | |
13148 | align_branch |= align_branch_call_bit; | |
13149 | else if (strcasecmp (type, "ret") == 0) | |
13150 | align_branch |= align_branch_ret_bit; | |
13151 | else if (strcasecmp (type, "indirect") == 0) | |
13152 | align_branch |= align_branch_indirect_bit; | |
13153 | else | |
13154 | as_fatal (_("invalid -malign-branch= option: `%s'"), arg); | |
13155 | type = next; | |
13156 | } | |
13157 | while (next != NULL); | |
13158 | free (saved); | |
13159 | break; | |
13160 | ||
76cf450b L |
13161 | case OPTION_MBRANCHES_WITH_32B_BOUNDARIES: |
13162 | align_branch_power = 5; | |
13163 | align_branch_prefix_size = 5; | |
13164 | align_branch = (align_branch_jcc_bit | |
13165 | | align_branch_fused_bit | |
13166 | | align_branch_jmp_bit); | |
13167 | break; | |
13168 | ||
5db04b09 | 13169 | case OPTION_MAMD64: |
4b5aaf5f | 13170 | isa64 = amd64; |
5db04b09 L |
13171 | break; |
13172 | ||
13173 | case OPTION_MINTEL64: | |
4b5aaf5f | 13174 | isa64 = intel64; |
5db04b09 L |
13175 | break; |
13176 | ||
b6f8c7c4 L |
13177 | case 'O': |
13178 | if (arg == NULL) | |
13179 | { | |
13180 | optimize = 1; | |
13181 | /* Turn off -Os. */ | |
13182 | optimize_for_space = 0; | |
13183 | } | |
13184 | else if (*arg == 's') | |
13185 | { | |
13186 | optimize_for_space = 1; | |
13187 | /* Turn on all encoding optimizations. */ | |
41fd2579 | 13188 | optimize = INT_MAX; |
b6f8c7c4 L |
13189 | } |
13190 | else | |
13191 | { | |
13192 | optimize = atoi (arg); | |
13193 | /* Turn off -Os. */ | |
13194 | optimize_for_space = 0; | |
13195 | } | |
13196 | break; | |
13197 | ||
252b5132 RH |
13198 | default: |
13199 | return 0; | |
13200 | } | |
13201 | return 1; | |
13202 | } | |
13203 | ||
8a2c8fef L |
13204 | #define MESSAGE_TEMPLATE \ |
13205 | " " | |
13206 | ||
293f5f65 L |
13207 | static char * |
13208 | output_message (FILE *stream, char *p, char *message, char *start, | |
13209 | int *left_p, const char *name, int len) | |
13210 | { | |
13211 | int size = sizeof (MESSAGE_TEMPLATE); | |
13212 | int left = *left_p; | |
13213 | ||
13214 | /* Reserve 2 spaces for ", " or ",\0" */ | |
13215 | left -= len + 2; | |
13216 | ||
13217 | /* Check if there is any room. */ | |
13218 | if (left >= 0) | |
13219 | { | |
13220 | if (p != start) | |
13221 | { | |
13222 | *p++ = ','; | |
13223 | *p++ = ' '; | |
13224 | } | |
13225 | p = mempcpy (p, name, len); | |
13226 | } | |
13227 | else | |
13228 | { | |
13229 | /* Output the current message now and start a new one. */ | |
13230 | *p++ = ','; | |
13231 | *p = '\0'; | |
13232 | fprintf (stream, "%s\n", message); | |
13233 | p = start; | |
13234 | left = size - (start - message) - len - 2; | |
13235 | ||
13236 | gas_assert (left >= 0); | |
13237 | ||
13238 | p = mempcpy (p, name, len); | |
13239 | } | |
13240 | ||
13241 | *left_p = left; | |
13242 | return p; | |
13243 | } | |
13244 | ||
8a2c8fef | 13245 | static void |
1ded5609 | 13246 | show_arch (FILE *stream, int ext, int check) |
8a2c8fef L |
13247 | { |
13248 | static char message[] = MESSAGE_TEMPLATE; | |
13249 | char *start = message + 27; | |
13250 | char *p; | |
13251 | int size = sizeof (MESSAGE_TEMPLATE); | |
13252 | int left; | |
13253 | const char *name; | |
13254 | int len; | |
13255 | unsigned int j; | |
13256 | ||
13257 | p = start; | |
13258 | left = size - (start - message); | |
13259 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) | |
13260 | { | |
13261 | /* Should it be skipped? */ | |
13262 | if (cpu_arch [j].skip) | |
13263 | continue; | |
13264 | ||
13265 | name = cpu_arch [j].name; | |
13266 | len = cpu_arch [j].len; | |
13267 | if (*name == '.') | |
13268 | { | |
13269 | /* It is an extension. Skip if we aren't asked to show it. */ | |
13270 | if (ext) | |
13271 | { | |
13272 | name++; | |
13273 | len--; | |
13274 | } | |
13275 | else | |
13276 | continue; | |
13277 | } | |
13278 | else if (ext) | |
13279 | { | |
13280 | /* It is an processor. Skip if we show only extension. */ | |
13281 | continue; | |
13282 | } | |
1ded5609 JB |
13283 | else if (check && ! cpu_arch[j].flags.bitfield.cpui386) |
13284 | { | |
13285 | /* It is an impossible processor - skip. */ | |
13286 | continue; | |
13287 | } | |
8a2c8fef | 13288 | |
293f5f65 | 13289 | p = output_message (stream, p, message, start, &left, name, len); |
8a2c8fef L |
13290 | } |
13291 | ||
293f5f65 L |
13292 | /* Display disabled extensions. */ |
13293 | if (ext) | |
13294 | for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++) | |
13295 | { | |
13296 | name = cpu_noarch [j].name; | |
13297 | len = cpu_noarch [j].len; | |
13298 | p = output_message (stream, p, message, start, &left, name, | |
13299 | len); | |
13300 | } | |
13301 | ||
8a2c8fef L |
13302 | *p = '\0'; |
13303 | fprintf (stream, "%s\n", message); | |
13304 | } | |
13305 | ||
252b5132 | 13306 | void |
8a2c8fef | 13307 | md_show_usage (FILE *stream) |
252b5132 | 13308 | { |
4cc782b5 ILT |
13309 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
13310 | fprintf (stream, _("\ | |
d4693039 | 13311 | -Qy, -Qn ignored\n\ |
a38cf1db | 13312 | -V print assembler version number\n\ |
b3b91714 AM |
13313 | -k ignored\n")); |
13314 | #endif | |
13315 | fprintf (stream, _("\ | |
12b55ccc | 13316 | -n Do not optimize code alignment\n\ |
b3b91714 AM |
13317 | -q quieten some warnings\n")); |
13318 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13319 | fprintf (stream, _("\ | |
a38cf1db | 13320 | -s ignored\n")); |
b3b91714 | 13321 | #endif |
d7f449c0 L |
13322 | #if defined BFD64 && (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
13323 | || defined (TE_PE) || defined (TE_PEP)) | |
751d281c | 13324 | fprintf (stream, _("\ |
570561f7 | 13325 | --32/--64/--x32 generate 32bit/64bit/x32 code\n")); |
751d281c | 13326 | #endif |
b3b91714 AM |
13327 | #ifdef SVR4_COMMENT_CHARS |
13328 | fprintf (stream, _("\ | |
13329 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
13330 | #else |
13331 | fprintf (stream, _("\ | |
b3b91714 | 13332 | --divide ignored\n")); |
4cc782b5 | 13333 | #endif |
9103f4f4 | 13334 | fprintf (stream, _("\ |
6305a203 | 13335 | -march=CPU[,+EXTENSION...]\n\ |
8a2c8fef | 13336 | generate code for CPU and EXTENSION, CPU is one of:\n")); |
1ded5609 | 13337 | show_arch (stream, 0, 1); |
8a2c8fef L |
13338 | fprintf (stream, _("\ |
13339 | EXTENSION is combination of:\n")); | |
1ded5609 | 13340 | show_arch (stream, 1, 0); |
6305a203 | 13341 | fprintf (stream, _("\ |
8a2c8fef | 13342 | -mtune=CPU optimize for CPU, CPU is one of:\n")); |
1ded5609 | 13343 | show_arch (stream, 0, 0); |
ba104c83 | 13344 | fprintf (stream, _("\ |
c0f3af97 L |
13345 | -msse2avx encode SSE instructions with VEX prefix\n")); |
13346 | fprintf (stream, _("\ | |
7c5c05ef | 13347 | -msse-check=[none|error|warning] (default: warning)\n\ |
daf50ae7 L |
13348 | check SSE instructions\n")); |
13349 | fprintf (stream, _("\ | |
7c5c05ef | 13350 | -moperand-check=[none|error|warning] (default: warning)\n\ |
7bab8ab5 JB |
13351 | check operand combinations for validity\n")); |
13352 | fprintf (stream, _("\ | |
7c5c05ef L |
13353 | -mavxscalar=[128|256] (default: 128)\n\ |
13354 | encode scalar AVX instructions with specific vector\n\ | |
539f890d L |
13355 | length\n")); |
13356 | fprintf (stream, _("\ | |
03751133 L |
13357 | -mvexwig=[0|1] (default: 0)\n\ |
13358 | encode VEX instructions with specific VEX.W value\n\ | |
13359 | for VEX.W bit ignored instructions\n")); | |
13360 | fprintf (stream, _("\ | |
7c5c05ef L |
13361 | -mevexlig=[128|256|512] (default: 128)\n\ |
13362 | encode scalar EVEX instructions with specific vector\n\ | |
43234a1e L |
13363 | length\n")); |
13364 | fprintf (stream, _("\ | |
7c5c05ef L |
13365 | -mevexwig=[0|1] (default: 0)\n\ |
13366 | encode EVEX instructions with specific EVEX.W value\n\ | |
43234a1e L |
13367 | for EVEX.W bit ignored instructions\n")); |
13368 | fprintf (stream, _("\ | |
7c5c05ef | 13369 | -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\ |
d3d3c6db IT |
13370 | encode EVEX instructions with specific EVEX.RC value\n\ |
13371 | for SAE-only ignored instructions\n")); | |
13372 | fprintf (stream, _("\ | |
7c5c05ef L |
13373 | -mmnemonic=[att|intel] ")); |
13374 | if (SYSV386_COMPAT) | |
13375 | fprintf (stream, _("(default: att)\n")); | |
13376 | else | |
13377 | fprintf (stream, _("(default: intel)\n")); | |
13378 | fprintf (stream, _("\ | |
13379 | use AT&T/Intel mnemonic\n")); | |
ba104c83 | 13380 | fprintf (stream, _("\ |
7c5c05ef L |
13381 | -msyntax=[att|intel] (default: att)\n\ |
13382 | use AT&T/Intel syntax\n")); | |
ba104c83 L |
13383 | fprintf (stream, _("\ |
13384 | -mindex-reg support pseudo index registers\n")); | |
13385 | fprintf (stream, _("\ | |
13386 | -mnaked-reg don't require `%%' prefix for registers\n")); | |
13387 | fprintf (stream, _("\ | |
7e8b059b | 13388 | -madd-bnd-prefix add BND prefix for all valid branches\n")); |
b4a3a7b4 | 13389 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8dcea932 L |
13390 | fprintf (stream, _("\ |
13391 | -mshared disable branch optimization for shared code\n")); | |
b4a3a7b4 L |
13392 | fprintf (stream, _("\ |
13393 | -mx86-used-note=[no|yes] ")); | |
13394 | if (DEFAULT_X86_USED_NOTE) | |
13395 | fprintf (stream, _("(default: yes)\n")); | |
13396 | else | |
13397 | fprintf (stream, _("(default: no)\n")); | |
13398 | fprintf (stream, _("\ | |
13399 | generate x86 used ISA and feature properties\n")); | |
13400 | #endif | |
13401 | #if defined (TE_PE) || defined (TE_PEP) | |
167ad85b TG |
13402 | fprintf (stream, _("\ |
13403 | -mbig-obj generate big object files\n")); | |
13404 | #endif | |
d022bddd | 13405 | fprintf (stream, _("\ |
7c5c05ef | 13406 | -momit-lock-prefix=[no|yes] (default: no)\n\ |
d022bddd | 13407 | strip all lock prefixes\n")); |
5db04b09 | 13408 | fprintf (stream, _("\ |
7c5c05ef | 13409 | -mfence-as-lock-add=[no|yes] (default: no)\n\ |
e4e00185 AS |
13410 | encode lfence, mfence and sfence as\n\ |
13411 | lock addl $0x0, (%%{re}sp)\n")); | |
13412 | fprintf (stream, _("\ | |
7c5c05ef L |
13413 | -mrelax-relocations=[no|yes] ")); |
13414 | if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS) | |
13415 | fprintf (stream, _("(default: yes)\n")); | |
13416 | else | |
13417 | fprintf (stream, _("(default: no)\n")); | |
13418 | fprintf (stream, _("\ | |
0cb4071e L |
13419 | generate relax relocations\n")); |
13420 | fprintf (stream, _("\ | |
e379e5f3 L |
13421 | -malign-branch-boundary=NUM (default: 0)\n\ |
13422 | align branches within NUM byte boundary\n")); | |
13423 | fprintf (stream, _("\ | |
13424 | -malign-branch=TYPE[+TYPE...] (default: jcc+fused+jmp)\n\ | |
13425 | TYPE is combination of jcc, fused, jmp, call, ret,\n\ | |
13426 | indirect\n\ | |
13427 | specify types of branches to align\n")); | |
13428 | fprintf (stream, _("\ | |
13429 | -malign-branch-prefix-size=NUM (default: 5)\n\ | |
13430 | align branches with NUM prefixes per instruction\n")); | |
13431 | fprintf (stream, _("\ | |
76cf450b L |
13432 | -mbranches-within-32B-boundaries\n\ |
13433 | align branches within 32 byte boundary\n")); | |
13434 | fprintf (stream, _("\ | |
ae531041 L |
13435 | -mlfence-after-load=[no|yes] (default: no)\n\ |
13436 | generate lfence after load\n")); | |
13437 | fprintf (stream, _("\ | |
13438 | -mlfence-before-indirect-branch=[none|all|register|memory] (default: none)\n\ | |
13439 | generate lfence before indirect near branch\n")); | |
13440 | fprintf (stream, _("\ | |
a09f656b | 13441 | -mlfence-before-ret=[none|or|not|shl|yes] (default: none)\n\ |
ae531041 L |
13442 | generate lfence before ret\n")); |
13443 | fprintf (stream, _("\ | |
7c5c05ef | 13444 | -mamd64 accept only AMD64 ISA [default]\n")); |
5db04b09 L |
13445 | fprintf (stream, _("\ |
13446 | -mintel64 accept only Intel64 ISA\n")); | |
252b5132 RH |
13447 | } |
13448 | ||
3e73aa7c | 13449 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
321098a5 | 13450 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
e57f8c65 | 13451 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
252b5132 RH |
13452 | |
13453 | /* Pick the target format to use. */ | |
13454 | ||
47926f60 | 13455 | const char * |
e3bb37b5 | 13456 | i386_target_format (void) |
252b5132 | 13457 | { |
351f65ca L |
13458 | if (!strncmp (default_arch, "x86_64", 6)) |
13459 | { | |
13460 | update_code_flag (CODE_64BIT, 1); | |
13461 | if (default_arch[6] == '\0') | |
7f56bc95 | 13462 | x86_elf_abi = X86_64_ABI; |
351f65ca | 13463 | else |
7f56bc95 | 13464 | x86_elf_abi = X86_64_X32_ABI; |
351f65ca | 13465 | } |
3e73aa7c | 13466 | else if (!strcmp (default_arch, "i386")) |
78f12dd3 | 13467 | update_code_flag (CODE_32BIT, 1); |
5197d474 L |
13468 | else if (!strcmp (default_arch, "iamcu")) |
13469 | { | |
13470 | update_code_flag (CODE_32BIT, 1); | |
13471 | if (cpu_arch_isa == PROCESSOR_UNKNOWN) | |
13472 | { | |
13473 | static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS; | |
13474 | cpu_arch_name = "iamcu"; | |
13475 | cpu_sub_arch_name = NULL; | |
13476 | cpu_arch_flags = iamcu_flags; | |
13477 | cpu_arch_isa = PROCESSOR_IAMCU; | |
13478 | cpu_arch_isa_flags = iamcu_flags; | |
13479 | if (!cpu_arch_tune_set) | |
13480 | { | |
13481 | cpu_arch_tune = cpu_arch_isa; | |
13482 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
13483 | } | |
13484 | } | |
8d471ec1 | 13485 | else if (cpu_arch_isa != PROCESSOR_IAMCU) |
5197d474 L |
13486 | as_fatal (_("Intel MCU doesn't support `%s' architecture"), |
13487 | cpu_arch_name); | |
13488 | } | |
3e73aa7c | 13489 | else |
2b5d6a91 | 13490 | as_fatal (_("unknown architecture")); |
89507696 JB |
13491 | |
13492 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) | |
13493 | cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].flags; | |
13494 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) | |
13495 | cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].flags; | |
13496 | ||
252b5132 RH |
13497 | switch (OUTPUT_FLAVOR) |
13498 | { | |
9384f2ff | 13499 | #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT) |
4c63da97 | 13500 | case bfd_target_aout_flavour: |
47926f60 | 13501 | return AOUT_TARGET_FORMAT; |
4c63da97 | 13502 | #endif |
9384f2ff AM |
13503 | #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF) |
13504 | # if defined (TE_PE) || defined (TE_PEP) | |
13505 | case bfd_target_coff_flavour: | |
167ad85b TG |
13506 | if (flag_code == CODE_64BIT) |
13507 | return use_big_obj ? "pe-bigobj-x86-64" : "pe-x86-64"; | |
13508 | else | |
13509 | return "pe-i386"; | |
9384f2ff | 13510 | # elif defined (TE_GO32) |
0561d57c JK |
13511 | case bfd_target_coff_flavour: |
13512 | return "coff-go32"; | |
9384f2ff | 13513 | # else |
252b5132 RH |
13514 | case bfd_target_coff_flavour: |
13515 | return "coff-i386"; | |
9384f2ff | 13516 | # endif |
4c63da97 | 13517 | #endif |
3e73aa7c | 13518 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 13519 | case bfd_target_elf_flavour: |
3e73aa7c | 13520 | { |
351f65ca L |
13521 | const char *format; |
13522 | ||
13523 | switch (x86_elf_abi) | |
4fa24527 | 13524 | { |
351f65ca L |
13525 | default: |
13526 | format = ELF_TARGET_FORMAT; | |
e379e5f3 L |
13527 | #ifndef TE_SOLARIS |
13528 | tls_get_addr = "___tls_get_addr"; | |
13529 | #endif | |
351f65ca | 13530 | break; |
7f56bc95 | 13531 | case X86_64_ABI: |
351f65ca | 13532 | use_rela_relocations = 1; |
4fa24527 | 13533 | object_64bit = 1; |
e379e5f3 L |
13534 | #ifndef TE_SOLARIS |
13535 | tls_get_addr = "__tls_get_addr"; | |
13536 | #endif | |
351f65ca L |
13537 | format = ELF_TARGET_FORMAT64; |
13538 | break; | |
7f56bc95 | 13539 | case X86_64_X32_ABI: |
4fa24527 | 13540 | use_rela_relocations = 1; |
351f65ca | 13541 | object_64bit = 1; |
e379e5f3 L |
13542 | #ifndef TE_SOLARIS |
13543 | tls_get_addr = "__tls_get_addr"; | |
13544 | #endif | |
862be3fb | 13545 | disallow_64bit_reloc = 1; |
351f65ca L |
13546 | format = ELF_TARGET_FORMAT32; |
13547 | break; | |
4fa24527 | 13548 | } |
3632d14b | 13549 | if (cpu_arch_isa == PROCESSOR_L1OM) |
8a9036a4 | 13550 | { |
7f56bc95 | 13551 | if (x86_elf_abi != X86_64_ABI) |
8a9036a4 L |
13552 | as_fatal (_("Intel L1OM is 64bit only")); |
13553 | return ELF_TARGET_L1OM_FORMAT; | |
13554 | } | |
b49f93f6 | 13555 | else if (cpu_arch_isa == PROCESSOR_K1OM) |
7a9068fe L |
13556 | { |
13557 | if (x86_elf_abi != X86_64_ABI) | |
13558 | as_fatal (_("Intel K1OM is 64bit only")); | |
13559 | return ELF_TARGET_K1OM_FORMAT; | |
13560 | } | |
81486035 L |
13561 | else if (cpu_arch_isa == PROCESSOR_IAMCU) |
13562 | { | |
13563 | if (x86_elf_abi != I386_ABI) | |
13564 | as_fatal (_("Intel MCU is 32bit only")); | |
13565 | return ELF_TARGET_IAMCU_FORMAT; | |
13566 | } | |
8a9036a4 | 13567 | else |
351f65ca | 13568 | return format; |
3e73aa7c | 13569 | } |
e57f8c65 TG |
13570 | #endif |
13571 | #if defined (OBJ_MACH_O) | |
13572 | case bfd_target_mach_o_flavour: | |
d382c579 TG |
13573 | if (flag_code == CODE_64BIT) |
13574 | { | |
13575 | use_rela_relocations = 1; | |
13576 | object_64bit = 1; | |
13577 | return "mach-o-x86-64"; | |
13578 | } | |
13579 | else | |
13580 | return "mach-o-i386"; | |
4c63da97 | 13581 | #endif |
252b5132 RH |
13582 | default: |
13583 | abort (); | |
13584 | return NULL; | |
13585 | } | |
13586 | } | |
13587 | ||
47926f60 | 13588 | #endif /* OBJ_MAYBE_ more than one */ |
252b5132 | 13589 | \f |
252b5132 | 13590 | symbolS * |
7016a5d5 | 13591 | md_undefined_symbol (char *name) |
252b5132 | 13592 | { |
18dc2407 ILT |
13593 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
13594 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
13595 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
13596 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
13597 | { |
13598 | if (!GOT_symbol) | |
13599 | { | |
13600 | if (symbol_find (name)) | |
13601 | as_bad (_("GOT already in symbol table")); | |
13602 | GOT_symbol = symbol_new (name, undefined_section, | |
13603 | (valueT) 0, &zero_address_frag); | |
13604 | }; | |
13605 | return GOT_symbol; | |
13606 | } | |
252b5132 RH |
13607 | return 0; |
13608 | } | |
13609 | ||
13610 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 13611 | |
252b5132 | 13612 | valueT |
7016a5d5 | 13613 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) |
252b5132 | 13614 | { |
4c63da97 AM |
13615 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
13616 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
13617 | { | |
13618 | /* For a.out, force the section size to be aligned. If we don't do | |
13619 | this, BFD will align it for us, but it will not write out the | |
13620 | final bytes of the section. This may be a bug in BFD, but it is | |
13621 | easier to fix it here since that is how the other a.out targets | |
13622 | work. */ | |
13623 | int align; | |
13624 | ||
fd361982 | 13625 | align = bfd_section_alignment (segment); |
8d3842cd | 13626 | size = ((size + (1 << align) - 1) & (-((valueT) 1 << align))); |
4c63da97 | 13627 | } |
252b5132 RH |
13628 | #endif |
13629 | ||
13630 | return size; | |
13631 | } | |
13632 | ||
13633 | /* On the i386, PC-relative offsets are relative to the start of the | |
13634 | next instruction. That is, the address of the offset, plus its | |
13635 | size, since the offset is always the last part of the insn. */ | |
13636 | ||
13637 | long | |
e3bb37b5 | 13638 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
13639 | { |
13640 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
13641 | } | |
13642 | ||
13643 | #ifndef I386COFF | |
13644 | ||
13645 | static void | |
e3bb37b5 | 13646 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 13647 | { |
29b0f896 | 13648 | int temp; |
252b5132 | 13649 | |
8a75718c JB |
13650 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
13651 | if (IS_ELF) | |
13652 | obj_elf_section_change_hook (); | |
13653 | #endif | |
252b5132 RH |
13654 | temp = get_absolute_expression (); |
13655 | subseg_set (bss_section, (subsegT) temp); | |
13656 | demand_empty_rest_of_line (); | |
13657 | } | |
13658 | ||
13659 | #endif | |
13660 | ||
e379e5f3 L |
13661 | /* Remember constant directive. */ |
13662 | ||
13663 | void | |
13664 | i386_cons_align (int ignore ATTRIBUTE_UNUSED) | |
13665 | { | |
13666 | if (last_insn.kind != last_insn_directive | |
13667 | && (bfd_section_flags (now_seg) & SEC_CODE)) | |
13668 | { | |
13669 | last_insn.seg = now_seg; | |
13670 | last_insn.kind = last_insn_directive; | |
13671 | last_insn.name = "constant directive"; | |
13672 | last_insn.file = as_where (&last_insn.line); | |
ae531041 L |
13673 | if (lfence_before_ret != lfence_before_ret_none) |
13674 | { | |
13675 | if (lfence_before_indirect_branch != lfence_branch_none) | |
13676 | as_warn (_("constant directive skips -mlfence-before-ret " | |
13677 | "and -mlfence-before-indirect-branch")); | |
13678 | else | |
13679 | as_warn (_("constant directive skips -mlfence-before-ret")); | |
13680 | } | |
13681 | else if (lfence_before_indirect_branch != lfence_branch_none) | |
13682 | as_warn (_("constant directive skips -mlfence-before-indirect-branch")); | |
e379e5f3 L |
13683 | } |
13684 | } | |
13685 | ||
252b5132 | 13686 | void |
e3bb37b5 | 13687 | i386_validate_fix (fixS *fixp) |
252b5132 | 13688 | { |
02a86693 | 13689 | if (fixp->fx_subsy) |
252b5132 | 13690 | { |
02a86693 | 13691 | if (fixp->fx_subsy == GOT_symbol) |
23df1078 | 13692 | { |
02a86693 L |
13693 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
13694 | { | |
13695 | if (!object_64bit) | |
13696 | abort (); | |
13697 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13698 | if (fixp->fx_tcbit2) | |
56ceb5b5 L |
13699 | fixp->fx_r_type = (fixp->fx_tcbit |
13700 | ? BFD_RELOC_X86_64_REX_GOTPCRELX | |
13701 | : BFD_RELOC_X86_64_GOTPCRELX); | |
02a86693 L |
13702 | else |
13703 | #endif | |
13704 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
13705 | } | |
d6ab8113 | 13706 | else |
02a86693 L |
13707 | { |
13708 | if (!object_64bit) | |
13709 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; | |
13710 | else | |
13711 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
13712 | } | |
13713 | fixp->fx_subsy = 0; | |
23df1078 | 13714 | } |
252b5132 | 13715 | } |
02a86693 L |
13716 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
13717 | else if (!object_64bit) | |
13718 | { | |
13719 | if (fixp->fx_r_type == BFD_RELOC_386_GOT32 | |
13720 | && fixp->fx_tcbit2) | |
13721 | fixp->fx_r_type = BFD_RELOC_386_GOT32X; | |
13722 | } | |
13723 | #endif | |
252b5132 RH |
13724 | } |
13725 | ||
252b5132 | 13726 | arelent * |
7016a5d5 | 13727 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
13728 | { |
13729 | arelent *rel; | |
13730 | bfd_reloc_code_real_type code; | |
13731 | ||
13732 | switch (fixp->fx_r_type) | |
13733 | { | |
8ce3d284 | 13734 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
13735 | case BFD_RELOC_SIZE32: |
13736 | case BFD_RELOC_SIZE64: | |
13737 | if (S_IS_DEFINED (fixp->fx_addsy) | |
13738 | && !S_IS_EXTERNAL (fixp->fx_addsy)) | |
13739 | { | |
13740 | /* Resolve size relocation against local symbol to size of | |
13741 | the symbol plus addend. */ | |
13742 | valueT value = S_GET_SIZE (fixp->fx_addsy) + fixp->fx_offset; | |
13743 | if (fixp->fx_r_type == BFD_RELOC_SIZE32 | |
13744 | && !fits_in_unsigned_long (value)) | |
13745 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
13746 | _("symbol size computation overflow")); | |
13747 | fixp->fx_addsy = NULL; | |
13748 | fixp->fx_subsy = NULL; | |
13749 | md_apply_fix (fixp, (valueT *) &value, NULL); | |
13750 | return NULL; | |
13751 | } | |
8ce3d284 | 13752 | #endif |
1a0670f3 | 13753 | /* Fall through. */ |
8fd4256d | 13754 | |
3e73aa7c JH |
13755 | case BFD_RELOC_X86_64_PLT32: |
13756 | case BFD_RELOC_X86_64_GOT32: | |
13757 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
13758 | case BFD_RELOC_X86_64_GOTPCRELX: |
13759 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
252b5132 RH |
13760 | case BFD_RELOC_386_PLT32: |
13761 | case BFD_RELOC_386_GOT32: | |
02a86693 | 13762 | case BFD_RELOC_386_GOT32X: |
252b5132 RH |
13763 | case BFD_RELOC_386_GOTOFF: |
13764 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
13765 | case BFD_RELOC_386_TLS_GD: |
13766 | case BFD_RELOC_386_TLS_LDM: | |
13767 | case BFD_RELOC_386_TLS_LDO_32: | |
13768 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
13769 | case BFD_RELOC_386_TLS_IE: |
13770 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
13771 | case BFD_RELOC_386_TLS_LE_32: |
13772 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
13773 | case BFD_RELOC_386_TLS_GOTDESC: |
13774 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
13775 | case BFD_RELOC_X86_64_TLSGD: |
13776 | case BFD_RELOC_X86_64_TLSLD: | |
13777 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 13778 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
13779 | case BFD_RELOC_X86_64_GOTTPOFF: |
13780 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
13781 | case BFD_RELOC_X86_64_TPOFF64: |
13782 | case BFD_RELOC_X86_64_GOTOFF64: | |
13783 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
13784 | case BFD_RELOC_X86_64_GOT64: |
13785 | case BFD_RELOC_X86_64_GOTPCREL64: | |
13786 | case BFD_RELOC_X86_64_GOTPC64: | |
13787 | case BFD_RELOC_X86_64_GOTPLT64: | |
13788 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
13789 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
13790 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
13791 | case BFD_RELOC_RVA: |
13792 | case BFD_RELOC_VTABLE_ENTRY: | |
13793 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
13794 | #ifdef TE_PE |
13795 | case BFD_RELOC_32_SECREL: | |
13796 | #endif | |
252b5132 RH |
13797 | code = fixp->fx_r_type; |
13798 | break; | |
dbbaec26 L |
13799 | case BFD_RELOC_X86_64_32S: |
13800 | if (!fixp->fx_pcrel) | |
13801 | { | |
13802 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
13803 | code = fixp->fx_r_type; | |
13804 | break; | |
13805 | } | |
1a0670f3 | 13806 | /* Fall through. */ |
252b5132 | 13807 | default: |
93382f6d | 13808 | if (fixp->fx_pcrel) |
252b5132 | 13809 | { |
93382f6d AM |
13810 | switch (fixp->fx_size) |
13811 | { | |
13812 | default: | |
b091f402 AM |
13813 | as_bad_where (fixp->fx_file, fixp->fx_line, |
13814 | _("can not do %d byte pc-relative relocation"), | |
13815 | fixp->fx_size); | |
93382f6d AM |
13816 | code = BFD_RELOC_32_PCREL; |
13817 | break; | |
13818 | case 1: code = BFD_RELOC_8_PCREL; break; | |
13819 | case 2: code = BFD_RELOC_16_PCREL; break; | |
d258b828 | 13820 | case 4: code = BFD_RELOC_32_PCREL; break; |
d6ab8113 JB |
13821 | #ifdef BFD64 |
13822 | case 8: code = BFD_RELOC_64_PCREL; break; | |
13823 | #endif | |
93382f6d AM |
13824 | } |
13825 | } | |
13826 | else | |
13827 | { | |
13828 | switch (fixp->fx_size) | |
13829 | { | |
13830 | default: | |
b091f402 AM |
13831 | as_bad_where (fixp->fx_file, fixp->fx_line, |
13832 | _("can not do %d byte relocation"), | |
13833 | fixp->fx_size); | |
93382f6d AM |
13834 | code = BFD_RELOC_32; |
13835 | break; | |
13836 | case 1: code = BFD_RELOC_8; break; | |
13837 | case 2: code = BFD_RELOC_16; break; | |
13838 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 13839 | #ifdef BFD64 |
3e73aa7c | 13840 | case 8: code = BFD_RELOC_64; break; |
937149dd | 13841 | #endif |
93382f6d | 13842 | } |
252b5132 RH |
13843 | } |
13844 | break; | |
13845 | } | |
252b5132 | 13846 | |
d182319b JB |
13847 | if ((code == BFD_RELOC_32 |
13848 | || code == BFD_RELOC_32_PCREL | |
13849 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
13850 | && GOT_symbol |
13851 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 13852 | { |
4fa24527 | 13853 | if (!object_64bit) |
d6ab8113 JB |
13854 | code = BFD_RELOC_386_GOTPC; |
13855 | else | |
13856 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 13857 | } |
7b81dfbb AJ |
13858 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
13859 | && GOT_symbol | |
13860 | && fixp->fx_addsy == GOT_symbol) | |
13861 | { | |
13862 | code = BFD_RELOC_X86_64_GOTPC64; | |
13863 | } | |
252b5132 | 13864 | |
add39d23 TS |
13865 | rel = XNEW (arelent); |
13866 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
49309057 | 13867 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
252b5132 RH |
13868 | |
13869 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 13870 | |
3e73aa7c JH |
13871 | if (!use_rela_relocations) |
13872 | { | |
13873 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
13874 | vtable entry to be used in the relocation's section offset. */ | |
13875 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
13876 | rel->address = fixp->fx_offset; | |
fbeb56a4 DK |
13877 | #if defined (OBJ_COFF) && defined (TE_PE) |
13878 | else if (fixp->fx_addsy && S_IS_WEAK (fixp->fx_addsy)) | |
13879 | rel->addend = fixp->fx_addnumber - (S_GET_VALUE (fixp->fx_addsy) * 2); | |
13880 | else | |
13881 | #endif | |
c6682705 | 13882 | rel->addend = 0; |
3e73aa7c JH |
13883 | } |
13884 | /* Use the rela in 64bit mode. */ | |
252b5132 | 13885 | else |
3e73aa7c | 13886 | { |
862be3fb L |
13887 | if (disallow_64bit_reloc) |
13888 | switch (code) | |
13889 | { | |
862be3fb L |
13890 | case BFD_RELOC_X86_64_DTPOFF64: |
13891 | case BFD_RELOC_X86_64_TPOFF64: | |
13892 | case BFD_RELOC_64_PCREL: | |
13893 | case BFD_RELOC_X86_64_GOTOFF64: | |
13894 | case BFD_RELOC_X86_64_GOT64: | |
13895 | case BFD_RELOC_X86_64_GOTPCREL64: | |
13896 | case BFD_RELOC_X86_64_GOTPC64: | |
13897 | case BFD_RELOC_X86_64_GOTPLT64: | |
13898 | case BFD_RELOC_X86_64_PLTOFF64: | |
13899 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
13900 | _("cannot represent relocation type %s in x32 mode"), | |
13901 | bfd_get_reloc_code_name (code)); | |
13902 | break; | |
13903 | default: | |
13904 | break; | |
13905 | } | |
13906 | ||
062cd5e7 AS |
13907 | if (!fixp->fx_pcrel) |
13908 | rel->addend = fixp->fx_offset; | |
13909 | else | |
13910 | switch (code) | |
13911 | { | |
13912 | case BFD_RELOC_X86_64_PLT32: | |
13913 | case BFD_RELOC_X86_64_GOT32: | |
13914 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
13915 | case BFD_RELOC_X86_64_GOTPCRELX: |
13916 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
bffbf940 JJ |
13917 | case BFD_RELOC_X86_64_TLSGD: |
13918 | case BFD_RELOC_X86_64_TLSLD: | |
13919 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
13920 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
13921 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
13922 | rel->addend = fixp->fx_offset - fixp->fx_size; |
13923 | break; | |
13924 | default: | |
13925 | rel->addend = (section->vma | |
13926 | - fixp->fx_size | |
13927 | + fixp->fx_addnumber | |
13928 | + md_pcrel_from (fixp)); | |
13929 | break; | |
13930 | } | |
3e73aa7c JH |
13931 | } |
13932 | ||
252b5132 RH |
13933 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
13934 | if (rel->howto == NULL) | |
13935 | { | |
13936 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 13937 | _("cannot represent relocation type %s"), |
252b5132 RH |
13938 | bfd_get_reloc_code_name (code)); |
13939 | /* Set howto to a garbage value so that we can keep going. */ | |
13940 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 13941 | gas_assert (rel->howto != NULL); |
252b5132 RH |
13942 | } |
13943 | ||
13944 | return rel; | |
13945 | } | |
13946 | ||
ee86248c | 13947 | #include "tc-i386-intel.c" |
54cfded0 | 13948 | |
a60de03c JB |
13949 | void |
13950 | tc_x86_parse_to_dw2regnum (expressionS *exp) | |
54cfded0 | 13951 | { |
a60de03c JB |
13952 | int saved_naked_reg; |
13953 | char saved_register_dot; | |
54cfded0 | 13954 | |
a60de03c JB |
13955 | saved_naked_reg = allow_naked_reg; |
13956 | allow_naked_reg = 1; | |
13957 | saved_register_dot = register_chars['.']; | |
13958 | register_chars['.'] = '.'; | |
13959 | allow_pseudo_reg = 1; | |
13960 | expression_and_evaluate (exp); | |
13961 | allow_pseudo_reg = 0; | |
13962 | register_chars['.'] = saved_register_dot; | |
13963 | allow_naked_reg = saved_naked_reg; | |
13964 | ||
e96d56a1 | 13965 | if (exp->X_op == O_register && exp->X_add_number >= 0) |
54cfded0 | 13966 | { |
a60de03c JB |
13967 | if ((addressT) exp->X_add_number < i386_regtab_size) |
13968 | { | |
13969 | exp->X_op = O_constant; | |
13970 | exp->X_add_number = i386_regtab[exp->X_add_number] | |
13971 | .dw2_regnum[flag_code >> 1]; | |
13972 | } | |
13973 | else | |
13974 | exp->X_op = O_illegal; | |
54cfded0 | 13975 | } |
54cfded0 AM |
13976 | } |
13977 | ||
13978 | void | |
13979 | tc_x86_frame_initial_instructions (void) | |
13980 | { | |
a60de03c JB |
13981 | static unsigned int sp_regno[2]; |
13982 | ||
13983 | if (!sp_regno[flag_code >> 1]) | |
13984 | { | |
13985 | char *saved_input = input_line_pointer; | |
13986 | char sp[][4] = {"esp", "rsp"}; | |
13987 | expressionS exp; | |
a4447b93 | 13988 | |
a60de03c JB |
13989 | input_line_pointer = sp[flag_code >> 1]; |
13990 | tc_x86_parse_to_dw2regnum (&exp); | |
9c2799c2 | 13991 | gas_assert (exp.X_op == O_constant); |
a60de03c JB |
13992 | sp_regno[flag_code >> 1] = exp.X_add_number; |
13993 | input_line_pointer = saved_input; | |
13994 | } | |
a4447b93 | 13995 | |
61ff971f L |
13996 | cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment); |
13997 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); | |
54cfded0 | 13998 | } |
d2b2c203 | 13999 | |
d7921315 L |
14000 | int |
14001 | x86_dwarf2_addr_size (void) | |
14002 | { | |
14003 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) | |
14004 | if (x86_elf_abi == X86_64_X32_ABI) | |
14005 | return 4; | |
14006 | #endif | |
14007 | return bfd_arch_bits_per_address (stdoutput) / 8; | |
14008 | } | |
14009 | ||
d2b2c203 DJ |
14010 | int |
14011 | i386_elf_section_type (const char *str, size_t len) | |
14012 | { | |
14013 | if (flag_code == CODE_64BIT | |
14014 | && len == sizeof ("unwind") - 1 | |
14015 | && strncmp (str, "unwind", 6) == 0) | |
14016 | return SHT_X86_64_UNWIND; | |
14017 | ||
14018 | return -1; | |
14019 | } | |
bb41ade5 | 14020 | |
ad5fec3b EB |
14021 | #ifdef TE_SOLARIS |
14022 | void | |
14023 | i386_solaris_fix_up_eh_frame (segT sec) | |
14024 | { | |
14025 | if (flag_code == CODE_64BIT) | |
14026 | elf_section_type (sec) = SHT_X86_64_UNWIND; | |
14027 | } | |
14028 | #endif | |
14029 | ||
bb41ade5 AM |
14030 | #ifdef TE_PE |
14031 | void | |
14032 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
14033 | { | |
91d6fa6a | 14034 | expressionS exp; |
bb41ade5 | 14035 | |
91d6fa6a NC |
14036 | exp.X_op = O_secrel; |
14037 | exp.X_add_symbol = symbol; | |
14038 | exp.X_add_number = 0; | |
14039 | emit_expr (&exp, size); | |
bb41ade5 AM |
14040 | } |
14041 | #endif | |
3b22753a L |
14042 | |
14043 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
14044 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
14045 | ||
01e1a5bc | 14046 | bfd_vma |
6d4af3c2 | 14047 | x86_64_section_letter (int letter, const char **ptr_msg) |
3b22753a L |
14048 | { |
14049 | if (flag_code == CODE_64BIT) | |
14050 | { | |
14051 | if (letter == 'l') | |
14052 | return SHF_X86_64_LARGE; | |
14053 | ||
8f3bae45 | 14054 | *ptr_msg = _("bad .section directive: want a,l,w,x,M,S,G,T in string"); |
64e74474 | 14055 | } |
3b22753a | 14056 | else |
8f3bae45 | 14057 | *ptr_msg = _("bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
14058 | return -1; |
14059 | } | |
14060 | ||
01e1a5bc | 14061 | bfd_vma |
3b22753a L |
14062 | x86_64_section_word (char *str, size_t len) |
14063 | { | |
8620418b | 14064 | if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large")) |
3b22753a L |
14065 | return SHF_X86_64_LARGE; |
14066 | ||
14067 | return -1; | |
14068 | } | |
14069 | ||
14070 | static void | |
14071 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
14072 | { | |
14073 | if (flag_code != CODE_64BIT) | |
14074 | { | |
14075 | s_comm_internal (0, elf_common_parse); | |
14076 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
14077 | } | |
14078 | else | |
14079 | { | |
14080 | static segT lbss_section; | |
14081 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
14082 | asection *saved_bss_section = bss_section; | |
14083 | ||
14084 | if (lbss_section == NULL) | |
14085 | { | |
14086 | flagword applicable; | |
14087 | segT seg = now_seg; | |
14088 | subsegT subseg = now_subseg; | |
14089 | ||
14090 | /* The .lbss section is for local .largecomm symbols. */ | |
14091 | lbss_section = subseg_new (".lbss", 0); | |
14092 | applicable = bfd_applicable_section_flags (stdoutput); | |
fd361982 | 14093 | bfd_set_section_flags (lbss_section, applicable & SEC_ALLOC); |
3b22753a L |
14094 | seg_info (lbss_section)->bss = 1; |
14095 | ||
14096 | subseg_set (seg, subseg); | |
14097 | } | |
14098 | ||
14099 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
14100 | bss_section = lbss_section; | |
14101 | ||
14102 | s_comm_internal (0, elf_common_parse); | |
14103 | ||
14104 | elf_com_section_ptr = saved_com_section_ptr; | |
14105 | bss_section = saved_bss_section; | |
14106 | } | |
14107 | } | |
14108 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |