Commit | Line | Data |
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b534c6d3 | 1 | /* tc-i386.c -- Assemble code for the Intel 80386 |
f7e42eb4 | 2 | Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
0bfee649 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
47926f60 | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | |
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
47926f60 KH |
23 | /* Intel 80386 machine specific gas. |
24 | Written by Eliot Dresselhaus (eliot@mgm.mit.edu). | |
3e73aa7c | 25 | x86_64 support by Jan Hubicka (jh@suse.cz) |
0f10071e | 26 | VIA PadLock support by Michal Ludvig (mludvig@suse.cz) |
47926f60 KH |
27 | Bugs & suggestions are completely welcome. This is free software. |
28 | Please help us make it better. */ | |
252b5132 | 29 | |
252b5132 | 30 | #include "as.h" |
3882b010 | 31 | #include "safe-ctype.h" |
252b5132 | 32 | #include "subsegs.h" |
316e2c05 | 33 | #include "dwarf2dbg.h" |
54cfded0 | 34 | #include "dw2gencfi.h" |
d2b2c203 | 35 | #include "elf/x86-64.h" |
40fb9820 | 36 | #include "opcodes/i386-init.h" |
252b5132 | 37 | |
252b5132 RH |
38 | #ifndef REGISTER_WARNINGS |
39 | #define REGISTER_WARNINGS 1 | |
40 | #endif | |
41 | ||
c3332e24 | 42 | #ifndef INFER_ADDR_PREFIX |
eecb386c | 43 | #define INFER_ADDR_PREFIX 1 |
c3332e24 AM |
44 | #endif |
45 | ||
29b0f896 AM |
46 | #ifndef DEFAULT_ARCH |
47 | #define DEFAULT_ARCH "i386" | |
246fcdee | 48 | #endif |
252b5132 | 49 | |
edde18a5 AM |
50 | #ifndef INLINE |
51 | #if __GNUC__ >= 2 | |
52 | #define INLINE __inline__ | |
53 | #else | |
54 | #define INLINE | |
55 | #endif | |
56 | #endif | |
57 | ||
6305a203 L |
58 | /* Prefixes will be emitted in the order defined below. |
59 | WAIT_PREFIX must be the first prefix since FWAIT is really is an | |
60 | instruction, and so must come before any prefixes. | |
61 | The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX, | |
62 | LOCKREP_PREFIX. */ | |
63 | #define WAIT_PREFIX 0 | |
64 | #define SEG_PREFIX 1 | |
65 | #define ADDR_PREFIX 2 | |
66 | #define DATA_PREFIX 3 | |
67 | #define LOCKREP_PREFIX 4 | |
68 | #define REX_PREFIX 5 /* must come last. */ | |
69 | #define MAX_PREFIXES 6 /* max prefixes per opcode */ | |
70 | ||
71 | /* we define the syntax here (modulo base,index,scale syntax) */ | |
72 | #define REGISTER_PREFIX '%' | |
73 | #define IMMEDIATE_PREFIX '$' | |
74 | #define ABSOLUTE_PREFIX '*' | |
75 | ||
76 | /* these are the instruction mnemonic suffixes in AT&T syntax or | |
77 | memory operand size in Intel syntax. */ | |
78 | #define WORD_MNEM_SUFFIX 'w' | |
79 | #define BYTE_MNEM_SUFFIX 'b' | |
80 | #define SHORT_MNEM_SUFFIX 's' | |
81 | #define LONG_MNEM_SUFFIX 'l' | |
82 | #define QWORD_MNEM_SUFFIX 'q' | |
83 | #define XMMWORD_MNEM_SUFFIX 'x' | |
c0f3af97 | 84 | #define YMMWORD_MNEM_SUFFIX 'y' |
6305a203 L |
85 | /* Intel Syntax. Use a non-ascii letter since since it never appears |
86 | in instructions. */ | |
87 | #define LONG_DOUBLE_MNEM_SUFFIX '\1' | |
88 | ||
89 | #define END_OF_INSN '\0' | |
90 | ||
91 | /* | |
92 | 'templates' is for grouping together 'template' structures for opcodes | |
93 | of the same name. This is only used for storing the insns in the grand | |
94 | ole hash table of insns. | |
95 | The templates themselves start at START and range up to (but not including) | |
96 | END. | |
97 | */ | |
98 | typedef struct | |
99 | { | |
100 | const template *start; | |
101 | const template *end; | |
102 | } | |
103 | templates; | |
104 | ||
105 | /* 386 operand encoding bytes: see 386 book for details of this. */ | |
106 | typedef struct | |
107 | { | |
108 | unsigned int regmem; /* codes register or memory operand */ | |
109 | unsigned int reg; /* codes register operand (or extended opcode) */ | |
110 | unsigned int mode; /* how to interpret regmem & reg */ | |
111 | } | |
112 | modrm_byte; | |
113 | ||
114 | /* x86-64 extension prefix. */ | |
115 | typedef int rex_byte; | |
116 | ||
117 | /* The SSE5 instructions have a two bit instruction modifier (OC) that | |
118 | is stored in two separate bytes in the instruction. Pick apart OC | |
119 | into the 2 separate bits for instruction. */ | |
120 | #define DREX_OC0(x) (((x) & 1) != 0) | |
121 | #define DREX_OC1(x) (((x) & 2) != 0) | |
122 | ||
123 | #define DREX_OC0_MASK (1 << 3) /* set OC0 in byte 4 */ | |
124 | #define DREX_OC1_MASK (1 << 2) /* set OC1 in byte 3 */ | |
125 | ||
126 | /* OC mappings */ | |
127 | #define DREX_XMEM_X1_X2_X2 0 /* 4 op insn, dest = src3, src1 = reg/mem */ | |
128 | #define DREX_X1_XMEM_X2_X2 1 /* 4 op insn, dest = src3, src2 = reg/mem */ | |
129 | #define DREX_X1_XMEM_X2_X1 2 /* 4 op insn, dest = src1, src2 = reg/mem */ | |
130 | #define DREX_X1_X2_XMEM_X1 3 /* 4 op insn, dest = src1, src3 = reg/mem */ | |
131 | ||
132 | #define DREX_XMEM_X1_X2 0 /* 3 op insn, src1 = reg/mem */ | |
133 | #define DREX_X1_XMEM_X2 1 /* 3 op insn, src1 = reg/mem */ | |
134 | ||
135 | /* Information needed to create the DREX byte in SSE5 instructions. */ | |
136 | typedef struct | |
137 | { | |
138 | unsigned int reg; /* register */ | |
139 | unsigned int rex; /* REX flags */ | |
140 | unsigned int modrm_reg; /* which arg goes in the modrm.reg field */ | |
141 | unsigned int modrm_regmem; /* which arg goes in the modrm.regmem field */ | |
142 | } drex_byte; | |
143 | ||
144 | /* 386 opcode byte to code indirect addressing. */ | |
145 | typedef struct | |
146 | { | |
147 | unsigned base; | |
148 | unsigned index; | |
149 | unsigned scale; | |
150 | } | |
151 | sib_byte; | |
152 | ||
6305a203 L |
153 | /* x86 arch names, types and features */ |
154 | typedef struct | |
155 | { | |
156 | const char *name; /* arch name */ | |
157 | enum processor_type type; /* arch type */ | |
158 | i386_cpu_flags flags; /* cpu feature flags */ | |
159 | } | |
160 | arch_entry; | |
161 | ||
e3bb37b5 L |
162 | static void set_code_flag (int); |
163 | static void set_16bit_gcc_code_flag (int); | |
164 | static void set_intel_syntax (int); | |
1efbbeb4 | 165 | static void set_intel_mnemonic (int); |
db51cc60 | 166 | static void set_allow_index_reg (int); |
cb19c032 | 167 | static void set_sse_check (int); |
e3bb37b5 | 168 | static void set_cpu_arch (int); |
6482c264 | 169 | #ifdef TE_PE |
e3bb37b5 | 170 | static void pe_directive_secrel (int); |
6482c264 | 171 | #endif |
e3bb37b5 L |
172 | static void signed_cons (int); |
173 | static char *output_invalid (int c); | |
a7619375 | 174 | static int i386_att_operand (char *); |
e3bb37b5 L |
175 | static int i386_intel_operand (char *, int); |
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); |
e3bb37b5 L |
181 | static void optimize_imm (void); |
182 | static void optimize_disp (void); | |
fa99fab2 | 183 | static const template *match_template (void); |
e3bb37b5 L |
184 | static int check_string (void); |
185 | static int process_suffix (void); | |
186 | static int check_byte_reg (void); | |
187 | static int check_long_reg (void); | |
188 | static int check_qword_reg (void); | |
189 | static int check_word_reg (void); | |
190 | static int finalize_imm (void); | |
85f10a01 | 191 | static void process_drex (void); |
e3bb37b5 L |
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); | |
202 | #endif | |
252b5132 | 203 | |
a847613f | 204 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 205 | |
c0f3af97 L |
206 | /* VEX prefix. */ |
207 | typedef struct | |
208 | { | |
209 | /* VEX prefix is either 2 byte or 3 byte. */ | |
210 | unsigned char bytes[3]; | |
211 | unsigned int length; | |
212 | /* Destination or source register specifier. */ | |
213 | const reg_entry *register_specifier; | |
214 | } vex_prefix; | |
215 | ||
252b5132 | 216 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 217 | i386_insn. */ |
252b5132 | 218 | |
520dc8e8 AM |
219 | union i386_op |
220 | { | |
221 | expressionS *disps; | |
222 | expressionS *imms; | |
223 | const reg_entry *regs; | |
224 | }; | |
225 | ||
252b5132 RH |
226 | struct _i386_insn |
227 | { | |
47926f60 | 228 | /* TM holds the template for the insn were currently assembling. */ |
252b5132 RH |
229 | template tm; |
230 | ||
7d5e4556 L |
231 | /* SUFFIX holds the instruction size suffix for byte, word, dword |
232 | or qword, if given. */ | |
252b5132 RH |
233 | char suffix; |
234 | ||
47926f60 | 235 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
236 | unsigned int operands; |
237 | ||
238 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
239 | of given register, displacement, memory operands and immediate | |
47926f60 | 240 | operands. */ |
252b5132 RH |
241 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
242 | ||
243 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 244 | use OP[i] for the corresponding operand. */ |
40fb9820 | 245 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 246 | |
520dc8e8 AM |
247 | /* Displacement expression, immediate expression, or register for each |
248 | operand. */ | |
249 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 250 | |
3e73aa7c JH |
251 | /* Flags for operands. */ |
252 | unsigned int flags[MAX_OPERANDS]; | |
253 | #define Operand_PCrel 1 | |
254 | ||
252b5132 | 255 | /* Relocation type for operand */ |
f86103b7 | 256 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 257 | |
252b5132 RH |
258 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
259 | the base index byte below. */ | |
260 | const reg_entry *base_reg; | |
261 | const reg_entry *index_reg; | |
262 | unsigned int log2_scale_factor; | |
263 | ||
264 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 265 | explicit segment overrides are given. */ |
ce8a8b2f | 266 | const seg_entry *seg[2]; |
252b5132 RH |
267 | |
268 | /* PREFIX holds all the given prefix opcodes (usually null). | |
269 | PREFIXES is the number of prefix opcodes. */ | |
270 | unsigned int prefixes; | |
271 | unsigned char prefix[MAX_PREFIXES]; | |
272 | ||
273 | /* RM and SIB are the modrm byte and the sib byte where the | |
85f10a01 MM |
274 | addressing modes of this insn are encoded. DREX is the byte |
275 | added by the SSE5 instructions. */ | |
252b5132 RH |
276 | |
277 | modrm_byte rm; | |
3e73aa7c | 278 | rex_byte rex; |
252b5132 | 279 | sib_byte sib; |
85f10a01 | 280 | drex_byte drex; |
c0f3af97 | 281 | vex_prefix vex; |
b6169b20 L |
282 | |
283 | /* Swap operand in encoding. */ | |
284 | unsigned int swap_operand : 1; | |
252b5132 RH |
285 | }; |
286 | ||
287 | typedef struct _i386_insn i386_insn; | |
288 | ||
289 | /* List of chars besides those in app.c:symbol_chars that can start an | |
290 | operand. Used to prevent the scrubber eating vital white-space. */ | |
32137342 | 291 | const char extra_symbol_chars[] = "*%-([" |
252b5132 | 292 | #ifdef LEX_AT |
32137342 NC |
293 | "@" |
294 | #endif | |
295 | #ifdef LEX_QM | |
296 | "?" | |
252b5132 | 297 | #endif |
32137342 | 298 | ; |
252b5132 | 299 | |
29b0f896 AM |
300 | #if (defined (TE_I386AIX) \ |
301 | || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ | |
3896cfd5 | 302 | && !defined (TE_GNU) \ |
29b0f896 | 303 | && !defined (TE_LINUX) \ |
32137342 | 304 | && !defined (TE_NETWARE) \ |
29b0f896 AM |
305 | && !defined (TE_FreeBSD) \ |
306 | && !defined (TE_NetBSD))) | |
252b5132 | 307 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
308 | pre-processor is disabled, these aren't very useful. The option |
309 | --divide will remove '/' from this list. */ | |
310 | const char *i386_comment_chars = "#/"; | |
311 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 312 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 313 | |
b3b91714 AM |
314 | #else |
315 | const char *i386_comment_chars = "#"; | |
316 | #define PREFIX_SEPARATOR '/' | |
317 | #endif | |
318 | ||
252b5132 RH |
319 | /* This array holds the chars that only start a comment at the beginning of |
320 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
321 | .line and .file directives will appear in the pre-processed output. |
322 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 323 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
324 | #NO_APP at the beginning of its output. |
325 | Also note that comments started like this one will always work if | |
252b5132 | 326 | '/' isn't otherwise defined. */ |
b3b91714 | 327 | const char line_comment_chars[] = "#/"; |
252b5132 | 328 | |
63a0b638 | 329 | const char line_separator_chars[] = ";"; |
252b5132 | 330 | |
ce8a8b2f AM |
331 | /* Chars that can be used to separate mant from exp in floating point |
332 | nums. */ | |
252b5132 RH |
333 | const char EXP_CHARS[] = "eE"; |
334 | ||
ce8a8b2f AM |
335 | /* Chars that mean this number is a floating point constant |
336 | As in 0f12.456 | |
337 | or 0d1.2345e12. */ | |
252b5132 RH |
338 | const char FLT_CHARS[] = "fFdDxX"; |
339 | ||
ce8a8b2f | 340 | /* Tables for lexical analysis. */ |
252b5132 RH |
341 | static char mnemonic_chars[256]; |
342 | static char register_chars[256]; | |
343 | static char operand_chars[256]; | |
344 | static char identifier_chars[256]; | |
345 | static char digit_chars[256]; | |
346 | ||
ce8a8b2f | 347 | /* Lexical macros. */ |
252b5132 RH |
348 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
349 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
350 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
351 | #define is_space_char(x) ((x) == ' ') | |
352 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
353 | #define is_digit_char(x) (digit_chars[(unsigned char) x]) | |
354 | ||
0234cb7c | 355 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
356 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
357 | ||
358 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
359 | effect this we maintain a stack of saved characters that we've smashed | |
360 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 361 | assembler instruction). */ |
252b5132 | 362 | static char save_stack[32]; |
ce8a8b2f | 363 | static char *save_stack_p; |
252b5132 RH |
364 | #define END_STRING_AND_SAVE(s) \ |
365 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
366 | #define RESTORE_END_STRING(s) \ | |
367 | do { *(s) = *--save_stack_p; } while (0) | |
368 | ||
47926f60 | 369 | /* The instruction we're assembling. */ |
252b5132 RH |
370 | static i386_insn i; |
371 | ||
372 | /* Possible templates for current insn. */ | |
373 | static const templates *current_templates; | |
374 | ||
31b2323c L |
375 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
376 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
377 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 378 | |
47926f60 KH |
379 | /* Current operand we are working on. */ |
380 | static int this_operand; | |
252b5132 | 381 | |
3e73aa7c JH |
382 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
383 | these. */ | |
384 | ||
385 | enum flag_code { | |
386 | CODE_32BIT, | |
387 | CODE_16BIT, | |
388 | CODE_64BIT }; | |
389 | ||
390 | static enum flag_code flag_code; | |
4fa24527 | 391 | static unsigned int object_64bit; |
3e73aa7c JH |
392 | static int use_rela_relocations = 0; |
393 | ||
394 | /* The names used to print error messages. */ | |
b77a7acd | 395 | static const char *flag_code_names[] = |
3e73aa7c JH |
396 | { |
397 | "32", | |
398 | "16", | |
399 | "64" | |
400 | }; | |
252b5132 | 401 | |
47926f60 KH |
402 | /* 1 for intel syntax, |
403 | 0 if att syntax. */ | |
404 | static int intel_syntax = 0; | |
252b5132 | 405 | |
1efbbeb4 L |
406 | /* 1 for intel mnemonic, |
407 | 0 if att mnemonic. */ | |
408 | static int intel_mnemonic = !SYSV386_COMPAT; | |
409 | ||
5209009a | 410 | /* 1 if support old (<= 2.8.1) versions of gcc. */ |
1efbbeb4 L |
411 | static int old_gcc = OLDGCC_COMPAT; |
412 | ||
a60de03c JB |
413 | /* 1 if pseudo registers are permitted. */ |
414 | static int allow_pseudo_reg = 0; | |
415 | ||
47926f60 KH |
416 | /* 1 if register prefix % not required. */ |
417 | static int allow_naked_reg = 0; | |
252b5132 | 418 | |
ba104c83 | 419 | /* 1 if pseudo index register, eiz/riz, is allowed . */ |
db51cc60 L |
420 | static int allow_index_reg = 0; |
421 | ||
daf50ae7 L |
422 | static enum |
423 | { | |
424 | sse_check_none = 0, | |
425 | sse_check_warning, | |
426 | sse_check_error | |
427 | } | |
428 | sse_check; | |
429 | ||
2ca3ace5 L |
430 | /* Register prefix used for error message. */ |
431 | static const char *register_prefix = "%"; | |
432 | ||
47926f60 KH |
433 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
434 | leave, push, and pop instructions so that gcc has the same stack | |
435 | frame as in 32 bit mode. */ | |
436 | static char stackop_size = '\0'; | |
eecb386c | 437 | |
12b55ccc L |
438 | /* Non-zero to optimize code alignment. */ |
439 | int optimize_align_code = 1; | |
440 | ||
47926f60 KH |
441 | /* Non-zero to quieten some warnings. */ |
442 | static int quiet_warnings = 0; | |
a38cf1db | 443 | |
47926f60 KH |
444 | /* CPU name. */ |
445 | static const char *cpu_arch_name = NULL; | |
6305a203 | 446 | static char *cpu_sub_arch_name = NULL; |
a38cf1db | 447 | |
47926f60 | 448 | /* CPU feature flags. */ |
40fb9820 L |
449 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
450 | ||
ccc9c027 L |
451 | /* If we have selected a cpu we are generating instructions for. */ |
452 | static int cpu_arch_tune_set = 0; | |
453 | ||
9103f4f4 | 454 | /* Cpu we are generating instructions for. */ |
fbf3f584 | 455 | enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; |
9103f4f4 L |
456 | |
457 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 458 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 459 | |
ccc9c027 | 460 | /* CPU instruction set architecture used. */ |
fbf3f584 | 461 | enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; |
ccc9c027 | 462 | |
9103f4f4 | 463 | /* CPU feature flags of instruction set architecture used. */ |
fbf3f584 | 464 | i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 465 | |
fddf5b5b AM |
466 | /* If set, conditional jumps are not automatically promoted to handle |
467 | larger than a byte offset. */ | |
468 | static unsigned int no_cond_jump_promotion = 0; | |
469 | ||
c0f3af97 L |
470 | /* Encode SSE instructions with VEX prefix. */ |
471 | static unsigned int sse2avx; | |
472 | ||
29b0f896 | 473 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 474 | static symbolS *GOT_symbol; |
29b0f896 | 475 | |
a4447b93 RH |
476 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
477 | unsigned int x86_dwarf2_return_column; | |
478 | ||
479 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
480 | int x86_cie_data_alignment; | |
481 | ||
252b5132 | 482 | /* Interface to relax_segment. |
fddf5b5b AM |
483 | There are 3 major relax states for 386 jump insns because the |
484 | different types of jumps add different sizes to frags when we're | |
485 | figuring out what sort of jump to choose to reach a given label. */ | |
252b5132 | 486 | |
47926f60 | 487 | /* Types. */ |
93c2a809 AM |
488 | #define UNCOND_JUMP 0 |
489 | #define COND_JUMP 1 | |
490 | #define COND_JUMP86 2 | |
fddf5b5b | 491 | |
47926f60 | 492 | /* Sizes. */ |
252b5132 RH |
493 | #define CODE16 1 |
494 | #define SMALL 0 | |
29b0f896 | 495 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 496 | #define BIG 2 |
29b0f896 | 497 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
498 | |
499 | #ifndef INLINE | |
500 | #ifdef __GNUC__ | |
501 | #define INLINE __inline__ | |
502 | #else | |
503 | #define INLINE | |
504 | #endif | |
505 | #endif | |
506 | ||
fddf5b5b AM |
507 | #define ENCODE_RELAX_STATE(type, size) \ |
508 | ((relax_substateT) (((type) << 2) | (size))) | |
509 | #define TYPE_FROM_RELAX_STATE(s) \ | |
510 | ((s) >> 2) | |
511 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
512 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
513 | |
514 | /* This table is used by relax_frag to promote short jumps to long | |
515 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
516 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
517 | don't allow a short jump in a 32 bit code segment to be promoted to | |
518 | a 16 bit offset jump because it's slower (requires data size | |
519 | prefix), and doesn't work, unless the destination is in the bottom | |
520 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
521 | ||
522 | const relax_typeS md_relax_table[] = | |
523 | { | |
24eab124 AM |
524 | /* The fields are: |
525 | 1) most positive reach of this state, | |
526 | 2) most negative reach of this state, | |
93c2a809 | 527 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 528 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 529 | |
fddf5b5b | 530 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
531 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
532 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
533 | /* dword jmp adds 4 bytes to frag: | |
534 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 535 | {0, 0, 4, 0}, |
93c2a809 AM |
536 | /* word jmp adds 2 byte2 to frag: |
537 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
538 | {0, 0, 2, 0}, |
539 | ||
93c2a809 AM |
540 | /* COND_JUMP states. */ |
541 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
542 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
543 | /* dword conditionals adds 5 bytes to frag: | |
544 | 1 extra opcode byte, 4 displacement bytes. */ | |
545 | {0, 0, 5, 0}, | |
fddf5b5b | 546 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
547 | 1 extra opcode byte, 2 displacement bytes. */ |
548 | {0, 0, 3, 0}, | |
549 | ||
550 | /* COND_JUMP86 states. */ | |
551 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
552 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
553 | /* dword conditionals adds 5 bytes to frag: | |
554 | 1 extra opcode byte, 4 displacement bytes. */ | |
555 | {0, 0, 5, 0}, | |
556 | /* word conditionals add 4 bytes to frag: | |
557 | 1 displacement byte and a 3 byte long branch insn. */ | |
558 | {0, 0, 4, 0} | |
252b5132 RH |
559 | }; |
560 | ||
9103f4f4 L |
561 | static const arch_entry cpu_arch[] = |
562 | { | |
6305a203 L |
563 | { "generic32", PROCESSOR_GENERIC32, |
564 | CPU_GENERIC32_FLAGS }, | |
565 | { "generic64", PROCESSOR_GENERIC64, | |
566 | CPU_GENERIC64_FLAGS }, | |
567 | { "i8086", PROCESSOR_UNKNOWN, | |
568 | CPU_NONE_FLAGS }, | |
569 | { "i186", PROCESSOR_UNKNOWN, | |
570 | CPU_I186_FLAGS }, | |
571 | { "i286", PROCESSOR_UNKNOWN, | |
572 | CPU_I286_FLAGS }, | |
573 | { "i386", PROCESSOR_I386, | |
574 | CPU_I386_FLAGS }, | |
575 | { "i486", PROCESSOR_I486, | |
576 | CPU_I486_FLAGS }, | |
577 | { "i586", PROCESSOR_PENTIUM, | |
578 | CPU_I586_FLAGS }, | |
579 | { "i686", PROCESSOR_PENTIUMPRO, | |
580 | CPU_I686_FLAGS }, | |
581 | { "pentium", PROCESSOR_PENTIUM, | |
582 | CPU_I586_FLAGS }, | |
583 | { "pentiumpro", PROCESSOR_PENTIUMPRO, | |
584 | CPU_I686_FLAGS }, | |
585 | { "pentiumii", PROCESSOR_PENTIUMPRO, | |
586 | CPU_P2_FLAGS }, | |
587 | { "pentiumiii",PROCESSOR_PENTIUMPRO, | |
588 | CPU_P3_FLAGS }, | |
589 | { "pentium4", PROCESSOR_PENTIUM4, | |
590 | CPU_P4_FLAGS }, | |
591 | { "prescott", PROCESSOR_NOCONA, | |
592 | CPU_CORE_FLAGS }, | |
593 | { "nocona", PROCESSOR_NOCONA, | |
594 | CPU_NOCONA_FLAGS }, | |
595 | { "yonah", PROCESSOR_CORE, | |
596 | CPU_CORE_FLAGS }, | |
597 | { "core", PROCESSOR_CORE, | |
598 | CPU_CORE_FLAGS }, | |
599 | { "merom", PROCESSOR_CORE2, | |
600 | CPU_CORE2_FLAGS }, | |
601 | { "core2", PROCESSOR_CORE2, | |
602 | CPU_CORE2_FLAGS }, | |
bd5295b2 L |
603 | { "corei7", PROCESSOR_COREI7, |
604 | CPU_COREI7_FLAGS }, | |
6305a203 L |
605 | { "k6", PROCESSOR_K6, |
606 | CPU_K6_FLAGS }, | |
607 | { "k6_2", PROCESSOR_K6, | |
608 | CPU_K6_2_FLAGS }, | |
609 | { "athlon", PROCESSOR_ATHLON, | |
610 | CPU_ATHLON_FLAGS }, | |
611 | { "sledgehammer", PROCESSOR_K8, | |
612 | CPU_K8_FLAGS }, | |
613 | { "opteron", PROCESSOR_K8, | |
614 | CPU_K8_FLAGS }, | |
615 | { "k8", PROCESSOR_K8, | |
616 | CPU_K8_FLAGS }, | |
617 | { "amdfam10", PROCESSOR_AMDFAM10, | |
618 | CPU_AMDFAM10_FLAGS }, | |
619 | { ".mmx", PROCESSOR_UNKNOWN, | |
620 | CPU_MMX_FLAGS }, | |
621 | { ".sse", PROCESSOR_UNKNOWN, | |
622 | CPU_SSE_FLAGS }, | |
623 | { ".sse2", PROCESSOR_UNKNOWN, | |
624 | CPU_SSE2_FLAGS }, | |
625 | { ".sse3", PROCESSOR_UNKNOWN, | |
626 | CPU_SSE3_FLAGS }, | |
627 | { ".ssse3", PROCESSOR_UNKNOWN, | |
628 | CPU_SSSE3_FLAGS }, | |
629 | { ".sse4.1", PROCESSOR_UNKNOWN, | |
630 | CPU_SSE4_1_FLAGS }, | |
631 | { ".sse4.2", PROCESSOR_UNKNOWN, | |
632 | CPU_SSE4_2_FLAGS }, | |
633 | { ".sse4", PROCESSOR_UNKNOWN, | |
634 | CPU_SSE4_2_FLAGS }, | |
c0f3af97 L |
635 | { ".avx", PROCESSOR_UNKNOWN, |
636 | CPU_AVX_FLAGS }, | |
6305a203 L |
637 | { ".vmx", PROCESSOR_UNKNOWN, |
638 | CPU_VMX_FLAGS }, | |
639 | { ".smx", PROCESSOR_UNKNOWN, | |
640 | CPU_SMX_FLAGS }, | |
f03fe4c1 L |
641 | { ".xsave", PROCESSOR_UNKNOWN, |
642 | CPU_XSAVE_FLAGS }, | |
c0f3af97 L |
643 | { ".aes", PROCESSOR_UNKNOWN, |
644 | CPU_AES_FLAGS }, | |
594ab6a3 L |
645 | { ".pclmul", PROCESSOR_UNKNOWN, |
646 | CPU_PCLMUL_FLAGS }, | |
c0f3af97 | 647 | { ".clmul", PROCESSOR_UNKNOWN, |
594ab6a3 | 648 | CPU_PCLMUL_FLAGS }, |
c0f3af97 L |
649 | { ".fma", PROCESSOR_UNKNOWN, |
650 | CPU_FMA_FLAGS }, | |
f1f8f695 L |
651 | { ".movbe", PROCESSOR_UNKNOWN, |
652 | CPU_MOVBE_FLAGS }, | |
653 | { ".ept", PROCESSOR_UNKNOWN, | |
654 | CPU_EPT_FLAGS }, | |
bd5295b2 L |
655 | { ".clflush", PROCESSOR_UNKNOWN, |
656 | CPU_CLFLUSH_FLAGS }, | |
657 | { ".syscall", PROCESSOR_UNKNOWN, | |
658 | CPU_SYSCALL_FLAGS }, | |
1b7f3fb0 L |
659 | { ".rdtscp", PROCESSOR_UNKNOWN, |
660 | CPU_RDTSCP_FLAGS }, | |
6305a203 L |
661 | { ".3dnow", PROCESSOR_UNKNOWN, |
662 | CPU_3DNOW_FLAGS }, | |
663 | { ".3dnowa", PROCESSOR_UNKNOWN, | |
664 | CPU_3DNOWA_FLAGS }, | |
665 | { ".padlock", PROCESSOR_UNKNOWN, | |
666 | CPU_PADLOCK_FLAGS }, | |
667 | { ".pacifica", PROCESSOR_UNKNOWN, | |
668 | CPU_SVME_FLAGS }, | |
669 | { ".svme", PROCESSOR_UNKNOWN, | |
670 | CPU_SVME_FLAGS }, | |
671 | { ".sse4a", PROCESSOR_UNKNOWN, | |
672 | CPU_SSE4A_FLAGS }, | |
673 | { ".abm", PROCESSOR_UNKNOWN, | |
674 | CPU_ABM_FLAGS }, | |
675 | { ".sse5", PROCESSOR_UNKNOWN, | |
676 | CPU_SSE5_FLAGS }, | |
e413e4e9 AM |
677 | }; |
678 | ||
704209c0 | 679 | #ifdef I386COFF |
a6c24e68 NC |
680 | /* Like s_lcomm_internal in gas/read.c but the alignment string |
681 | is allowed to be optional. */ | |
682 | ||
683 | static symbolS * | |
684 | pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size) | |
685 | { | |
686 | addressT align = 0; | |
687 | ||
688 | SKIP_WHITESPACE (); | |
689 | ||
690 | if (needs_align | |
691 | && *input_line_pointer == ',') | |
692 | { | |
693 | align = parse_align (needs_align - 1); | |
694 | ||
695 | if (align == (addressT) -1) | |
696 | return NULL; | |
697 | } | |
698 | else | |
699 | { | |
700 | if (size >= 8) | |
701 | align = 3; | |
702 | else if (size >= 4) | |
703 | align = 2; | |
704 | else if (size >= 2) | |
705 | align = 1; | |
706 | else | |
707 | align = 0; | |
708 | } | |
709 | ||
710 | bss_alloc (symbolP, size, align); | |
711 | return symbolP; | |
712 | } | |
713 | ||
704209c0 | 714 | static void |
a6c24e68 NC |
715 | pe_lcomm (int needs_align) |
716 | { | |
717 | s_comm_internal (needs_align * 2, pe_lcomm_internal); | |
718 | } | |
704209c0 | 719 | #endif |
a6c24e68 | 720 | |
29b0f896 AM |
721 | const pseudo_typeS md_pseudo_table[] = |
722 | { | |
723 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
724 | {"align", s_align_bytes, 0}, | |
725 | #else | |
726 | {"align", s_align_ptwo, 0}, | |
727 | #endif | |
728 | {"arch", set_cpu_arch, 0}, | |
729 | #ifndef I386COFF | |
730 | {"bss", s_bss, 0}, | |
a6c24e68 NC |
731 | #else |
732 | {"lcomm", pe_lcomm, 1}, | |
29b0f896 AM |
733 | #endif |
734 | {"ffloat", float_cons, 'f'}, | |
735 | {"dfloat", float_cons, 'd'}, | |
736 | {"tfloat", float_cons, 'x'}, | |
737 | {"value", cons, 2}, | |
d182319b | 738 | {"slong", signed_cons, 4}, |
29b0f896 AM |
739 | {"noopt", s_ignore, 0}, |
740 | {"optim", s_ignore, 0}, | |
741 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
742 | {"code16", set_code_flag, CODE_16BIT}, | |
743 | {"code32", set_code_flag, CODE_32BIT}, | |
744 | {"code64", set_code_flag, CODE_64BIT}, | |
745 | {"intel_syntax", set_intel_syntax, 1}, | |
746 | {"att_syntax", set_intel_syntax, 0}, | |
1efbbeb4 L |
747 | {"intel_mnemonic", set_intel_mnemonic, 1}, |
748 | {"att_mnemonic", set_intel_mnemonic, 0}, | |
db51cc60 L |
749 | {"allow_index_reg", set_allow_index_reg, 1}, |
750 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
cb19c032 | 751 | {"sse_check", set_sse_check, 0}, |
3b22753a L |
752 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
753 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 754 | #else |
e3bb37b5 | 755 | {"file", (void (*) (int)) dwarf2_directive_file, 0}, |
07a53e5c RH |
756 | {"loc", dwarf2_directive_loc, 0}, |
757 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 758 | #endif |
6482c264 NC |
759 | #ifdef TE_PE |
760 | {"secrel32", pe_directive_secrel, 0}, | |
761 | #endif | |
29b0f896 AM |
762 | {0, 0, 0} |
763 | }; | |
764 | ||
765 | /* For interface with expression (). */ | |
766 | extern char *input_line_pointer; | |
767 | ||
768 | /* Hash table for instruction mnemonic lookup. */ | |
769 | static struct hash_control *op_hash; | |
770 | ||
771 | /* Hash table for register lookup. */ | |
772 | static struct hash_control *reg_hash; | |
773 | \f | |
252b5132 | 774 | void |
e3bb37b5 | 775 | i386_align_code (fragS *fragP, int count) |
252b5132 | 776 | { |
ce8a8b2f AM |
777 | /* Various efficient no-op patterns for aligning code labels. |
778 | Note: Don't try to assemble the instructions in the comments. | |
779 | 0L and 0w are not legal. */ | |
252b5132 RH |
780 | static const char f32_1[] = |
781 | {0x90}; /* nop */ | |
782 | static const char f32_2[] = | |
ccc9c027 | 783 | {0x66,0x90}; /* xchg %ax,%ax */ |
252b5132 RH |
784 | static const char f32_3[] = |
785 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
786 | static const char f32_4[] = | |
787 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
788 | static const char f32_5[] = | |
789 | {0x90, /* nop */ | |
790 | 0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
791 | static const char f32_6[] = | |
792 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
793 | static const char f32_7[] = | |
794 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
795 | static const char f32_8[] = | |
796 | {0x90, /* nop */ | |
797 | 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
798 | static const char f32_9[] = | |
799 | {0x89,0xf6, /* movl %esi,%esi */ | |
800 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
801 | static const char f32_10[] = | |
802 | {0x8d,0x76,0x00, /* leal 0(%esi),%esi */ | |
803 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
804 | static const char f32_11[] = | |
805 | {0x8d,0x74,0x26,0x00, /* leal 0(%esi,1),%esi */ | |
806 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
807 | static const char f32_12[] = | |
808 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
809 | 0x8d,0xbf,0x00,0x00,0x00,0x00}; /* leal 0L(%edi),%edi */ | |
810 | static const char f32_13[] = | |
811 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
812 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
813 | static const char f32_14[] = | |
814 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00, /* leal 0L(%esi,1),%esi */ | |
815 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
c3332e24 AM |
816 | static const char f16_3[] = |
817 | {0x8d,0x74,0x00}; /* lea 0(%esi),%esi */ | |
252b5132 RH |
818 | static const char f16_4[] = |
819 | {0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
820 | static const char f16_5[] = | |
821 | {0x90, /* nop */ | |
822 | 0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
823 | static const char f16_6[] = | |
824 | {0x89,0xf6, /* mov %si,%si */ | |
825 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
826 | static const char f16_7[] = | |
827 | {0x8d,0x74,0x00, /* lea 0(%si),%si */ | |
828 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
829 | static const char f16_8[] = | |
830 | {0x8d,0xb4,0x00,0x00, /* lea 0w(%si),%si */ | |
831 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
76bc74dc L |
832 | static const char jump_31[] = |
833 | {0xeb,0x1d,0x90,0x90,0x90,0x90,0x90, /* jmp .+31; lotsa nops */ | |
834 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
835 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
836 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90}; | |
252b5132 RH |
837 | static const char *const f32_patt[] = { |
838 | f32_1, f32_2, f32_3, f32_4, f32_5, f32_6, f32_7, f32_8, | |
76bc74dc | 839 | f32_9, f32_10, f32_11, f32_12, f32_13, f32_14 |
252b5132 RH |
840 | }; |
841 | static const char *const f16_patt[] = { | |
76bc74dc | 842 | f32_1, f32_2, f16_3, f16_4, f16_5, f16_6, f16_7, f16_8 |
252b5132 | 843 | }; |
ccc9c027 L |
844 | /* nopl (%[re]ax) */ |
845 | static const char alt_3[] = | |
846 | {0x0f,0x1f,0x00}; | |
847 | /* nopl 0(%[re]ax) */ | |
848 | static const char alt_4[] = | |
849 | {0x0f,0x1f,0x40,0x00}; | |
850 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
851 | static const char alt_5[] = | |
852 | {0x0f,0x1f,0x44,0x00,0x00}; | |
853 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
854 | static const char alt_6[] = | |
855 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
856 | /* nopl 0L(%[re]ax) */ | |
857 | static const char alt_7[] = | |
858 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
859 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
860 | static const char alt_8[] = | |
861 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
862 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
863 | static const char alt_9[] = | |
864 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
865 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
866 | static const char alt_10[] = | |
867 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
868 | /* data16 | |
869 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
870 | static const char alt_long_11[] = | |
871 | {0x66, | |
872 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
873 | /* data16 | |
874 | data16 | |
875 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
876 | static const char alt_long_12[] = | |
877 | {0x66, | |
878 | 0x66, | |
879 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
880 | /* data16 | |
881 | data16 | |
882 | data16 | |
883 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
884 | static const char alt_long_13[] = | |
885 | {0x66, | |
886 | 0x66, | |
887 | 0x66, | |
888 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
889 | /* data16 | |
890 | data16 | |
891 | data16 | |
892 | data16 | |
893 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
894 | static const char alt_long_14[] = | |
895 | {0x66, | |
896 | 0x66, | |
897 | 0x66, | |
898 | 0x66, | |
899 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
900 | /* data16 | |
901 | data16 | |
902 | data16 | |
903 | data16 | |
904 | data16 | |
905 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
906 | static const char alt_long_15[] = | |
907 | {0x66, | |
908 | 0x66, | |
909 | 0x66, | |
910 | 0x66, | |
911 | 0x66, | |
912 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
913 | /* nopl 0(%[re]ax,%[re]ax,1) | |
914 | nopw 0(%[re]ax,%[re]ax,1) */ | |
915 | static const char alt_short_11[] = | |
916 | {0x0f,0x1f,0x44,0x00,0x00, | |
917 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
918 | /* nopw 0(%[re]ax,%[re]ax,1) | |
919 | nopw 0(%[re]ax,%[re]ax,1) */ | |
920 | static const char alt_short_12[] = | |
921 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
922 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
923 | /* nopw 0(%[re]ax,%[re]ax,1) | |
924 | nopl 0L(%[re]ax) */ | |
925 | static const char alt_short_13[] = | |
926 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
927 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
928 | /* nopl 0L(%[re]ax) | |
929 | nopl 0L(%[re]ax) */ | |
930 | static const char alt_short_14[] = | |
931 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
932 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
933 | /* nopl 0L(%[re]ax) | |
934 | nopl 0L(%[re]ax,%[re]ax,1) */ | |
935 | static const char alt_short_15[] = | |
936 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
937 | 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
938 | static const char *const alt_short_patt[] = { | |
939 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
940 | alt_9, alt_10, alt_short_11, alt_short_12, alt_short_13, | |
941 | alt_short_14, alt_short_15 | |
942 | }; | |
943 | static const char *const alt_long_patt[] = { | |
944 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
945 | alt_9, alt_10, alt_long_11, alt_long_12, alt_long_13, | |
946 | alt_long_14, alt_long_15 | |
947 | }; | |
252b5132 | 948 | |
76bc74dc L |
949 | /* Only align for at least a positive non-zero boundary. */ |
950 | if (count <= 0 || count > MAX_MEM_FOR_RS_ALIGN_CODE) | |
33fef721 | 951 | return; |
3e73aa7c | 952 | |
ccc9c027 L |
953 | /* We need to decide which NOP sequence to use for 32bit and |
954 | 64bit. When -mtune= is used: | |
4eed87de | 955 | |
76bc74dc L |
956 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
957 | PROCESSOR_GENERIC32, f32_patt will be used. | |
958 | 2. For PROCESSOR_PENTIUMPRO, PROCESSOR_PENTIUM4, PROCESSOR_NOCONA, | |
bd5295b2 L |
959 | PROCESSOR_CORE, PROCESSOR_CORE2, PROCESSOR_COREI7, and |
960 | PROCESSOR_GENERIC64, alt_long_patt will be used. | |
76bc74dc L |
961 | 3. For PROCESSOR_ATHLON, PROCESSOR_K6, PROCESSOR_K8 and |
962 | PROCESSOR_AMDFAM10, alt_short_patt will be used. | |
ccc9c027 | 963 | |
76bc74dc L |
964 | When -mtune= isn't used, alt_long_patt will be used if |
965 | cpu_arch_isa_flags has Cpu686. Otherwise, f32_patt will | |
966 | be used. | |
ccc9c027 L |
967 | |
968 | When -march= or .arch is used, we can't use anything beyond | |
969 | cpu_arch_isa_flags. */ | |
970 | ||
971 | if (flag_code == CODE_16BIT) | |
972 | { | |
ccc9c027 | 973 | if (count > 8) |
33fef721 | 974 | { |
76bc74dc L |
975 | memcpy (fragP->fr_literal + fragP->fr_fix, |
976 | jump_31, count); | |
977 | /* Adjust jump offset. */ | |
978 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
252b5132 | 979 | } |
76bc74dc L |
980 | else |
981 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
982 | f16_patt[count - 1], count); | |
252b5132 | 983 | } |
33fef721 | 984 | else |
ccc9c027 L |
985 | { |
986 | const char *const *patt = NULL; | |
987 | ||
fbf3f584 | 988 | if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN) |
ccc9c027 L |
989 | { |
990 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
991 | switch (cpu_arch_tune) | |
992 | { | |
993 | case PROCESSOR_UNKNOWN: | |
994 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
995 | optimize for Cpu686. */ | |
fbf3f584 | 996 | if (fragP->tc_frag_data.isa_flags.bitfield.cpui686) |
76bc74dc | 997 | patt = alt_long_patt; |
ccc9c027 L |
998 | else |
999 | patt = f32_patt; | |
1000 | break; | |
ccc9c027 L |
1001 | case PROCESSOR_PENTIUMPRO: |
1002 | case PROCESSOR_PENTIUM4: | |
1003 | case PROCESSOR_NOCONA: | |
ef05d495 | 1004 | case PROCESSOR_CORE: |
76bc74dc | 1005 | case PROCESSOR_CORE2: |
bd5295b2 | 1006 | case PROCESSOR_COREI7: |
76bc74dc L |
1007 | case PROCESSOR_GENERIC64: |
1008 | patt = alt_long_patt; | |
1009 | break; | |
ccc9c027 L |
1010 | case PROCESSOR_K6: |
1011 | case PROCESSOR_ATHLON: | |
1012 | case PROCESSOR_K8: | |
4eed87de | 1013 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
1014 | patt = alt_short_patt; |
1015 | break; | |
76bc74dc | 1016 | case PROCESSOR_I386: |
ccc9c027 L |
1017 | case PROCESSOR_I486: |
1018 | case PROCESSOR_PENTIUM: | |
1019 | case PROCESSOR_GENERIC32: | |
1020 | patt = f32_patt; | |
1021 | break; | |
4eed87de | 1022 | } |
ccc9c027 L |
1023 | } |
1024 | else | |
1025 | { | |
fbf3f584 | 1026 | switch (fragP->tc_frag_data.tune) |
ccc9c027 L |
1027 | { |
1028 | case PROCESSOR_UNKNOWN: | |
e6a14101 | 1029 | /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be |
ccc9c027 L |
1030 | PROCESSOR_UNKNOWN. */ |
1031 | abort (); | |
1032 | break; | |
1033 | ||
76bc74dc | 1034 | case PROCESSOR_I386: |
ccc9c027 L |
1035 | case PROCESSOR_I486: |
1036 | case PROCESSOR_PENTIUM: | |
ccc9c027 L |
1037 | case PROCESSOR_K6: |
1038 | case PROCESSOR_ATHLON: | |
1039 | case PROCESSOR_K8: | |
4eed87de | 1040 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
1041 | case PROCESSOR_GENERIC32: |
1042 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
1043 | for Cpu686. */ | |
fbf3f584 | 1044 | if (fragP->tc_frag_data.isa_flags.bitfield.cpui686) |
ccc9c027 L |
1045 | patt = alt_short_patt; |
1046 | else | |
1047 | patt = f32_patt; | |
1048 | break; | |
76bc74dc L |
1049 | case PROCESSOR_PENTIUMPRO: |
1050 | case PROCESSOR_PENTIUM4: | |
1051 | case PROCESSOR_NOCONA: | |
1052 | case PROCESSOR_CORE: | |
ef05d495 | 1053 | case PROCESSOR_CORE2: |
bd5295b2 | 1054 | case PROCESSOR_COREI7: |
fbf3f584 | 1055 | if (fragP->tc_frag_data.isa_flags.bitfield.cpui686) |
ccc9c027 L |
1056 | patt = alt_long_patt; |
1057 | else | |
1058 | patt = f32_patt; | |
1059 | break; | |
1060 | case PROCESSOR_GENERIC64: | |
76bc74dc | 1061 | patt = alt_long_patt; |
ccc9c027 | 1062 | break; |
4eed87de | 1063 | } |
ccc9c027 L |
1064 | } |
1065 | ||
76bc74dc L |
1066 | if (patt == f32_patt) |
1067 | { | |
1068 | /* If the padding is less than 15 bytes, we use the normal | |
1069 | ones. Otherwise, we use a jump instruction and adjust | |
1070 | its offset. */ | |
1071 | if (count < 15) | |
1072 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1073 | patt[count - 1], count); | |
1074 | else | |
1075 | { | |
1076 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1077 | jump_31, count); | |
1078 | /* Adjust jump offset. */ | |
1079 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
1080 | } | |
1081 | } | |
1082 | else | |
1083 | { | |
1084 | /* Maximum length of an instruction is 15 byte. If the | |
1085 | padding is greater than 15 bytes and we don't use jump, | |
1086 | we have to break it into smaller pieces. */ | |
1087 | int padding = count; | |
1088 | while (padding > 15) | |
1089 | { | |
1090 | padding -= 15; | |
1091 | memcpy (fragP->fr_literal + fragP->fr_fix + padding, | |
1092 | patt [14], 15); | |
1093 | } | |
1094 | ||
1095 | if (padding) | |
1096 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1097 | patt [padding - 1], padding); | |
1098 | } | |
ccc9c027 | 1099 | } |
33fef721 | 1100 | fragP->fr_var = count; |
252b5132 RH |
1101 | } |
1102 | ||
c6fb90c8 | 1103 | static INLINE int |
0dfbf9d7 | 1104 | operand_type_all_zero (const union i386_operand_type *x) |
40fb9820 | 1105 | { |
0dfbf9d7 | 1106 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1107 | { |
1108 | case 3: | |
0dfbf9d7 | 1109 | if (x->array[2]) |
c6fb90c8 L |
1110 | return 0; |
1111 | case 2: | |
0dfbf9d7 | 1112 | if (x->array[1]) |
c6fb90c8 L |
1113 | return 0; |
1114 | case 1: | |
0dfbf9d7 | 1115 | return !x->array[0]; |
c6fb90c8 L |
1116 | default: |
1117 | abort (); | |
1118 | } | |
40fb9820 L |
1119 | } |
1120 | ||
c6fb90c8 | 1121 | static INLINE void |
0dfbf9d7 | 1122 | operand_type_set (union i386_operand_type *x, unsigned int v) |
40fb9820 | 1123 | { |
0dfbf9d7 | 1124 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1125 | { |
1126 | case 3: | |
0dfbf9d7 | 1127 | x->array[2] = v; |
c6fb90c8 | 1128 | case 2: |
0dfbf9d7 | 1129 | x->array[1] = v; |
c6fb90c8 | 1130 | case 1: |
0dfbf9d7 | 1131 | x->array[0] = v; |
c6fb90c8 L |
1132 | break; |
1133 | default: | |
1134 | abort (); | |
1135 | } | |
1136 | } | |
40fb9820 | 1137 | |
c6fb90c8 | 1138 | static INLINE int |
0dfbf9d7 L |
1139 | operand_type_equal (const union i386_operand_type *x, |
1140 | const union i386_operand_type *y) | |
c6fb90c8 | 1141 | { |
0dfbf9d7 | 1142 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1143 | { |
1144 | case 3: | |
0dfbf9d7 | 1145 | if (x->array[2] != y->array[2]) |
c6fb90c8 L |
1146 | return 0; |
1147 | case 2: | |
0dfbf9d7 | 1148 | if (x->array[1] != y->array[1]) |
c6fb90c8 L |
1149 | return 0; |
1150 | case 1: | |
0dfbf9d7 | 1151 | return x->array[0] == y->array[0]; |
c6fb90c8 L |
1152 | break; |
1153 | default: | |
1154 | abort (); | |
1155 | } | |
1156 | } | |
40fb9820 | 1157 | |
0dfbf9d7 L |
1158 | static INLINE int |
1159 | cpu_flags_all_zero (const union i386_cpu_flags *x) | |
1160 | { | |
1161 | switch (ARRAY_SIZE(x->array)) | |
1162 | { | |
1163 | case 3: | |
1164 | if (x->array[2]) | |
1165 | return 0; | |
1166 | case 2: | |
1167 | if (x->array[1]) | |
1168 | return 0; | |
1169 | case 1: | |
1170 | return !x->array[0]; | |
1171 | default: | |
1172 | abort (); | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | static INLINE void | |
1177 | cpu_flags_set (union i386_cpu_flags *x, unsigned int v) | |
1178 | { | |
1179 | switch (ARRAY_SIZE(x->array)) | |
1180 | { | |
1181 | case 3: | |
1182 | x->array[2] = v; | |
1183 | case 2: | |
1184 | x->array[1] = v; | |
1185 | case 1: | |
1186 | x->array[0] = v; | |
1187 | break; | |
1188 | default: | |
1189 | abort (); | |
1190 | } | |
1191 | } | |
1192 | ||
1193 | static INLINE int | |
1194 | cpu_flags_equal (const union i386_cpu_flags *x, | |
1195 | const union i386_cpu_flags *y) | |
1196 | { | |
1197 | switch (ARRAY_SIZE(x->array)) | |
1198 | { | |
1199 | case 3: | |
1200 | if (x->array[2] != y->array[2]) | |
1201 | return 0; | |
1202 | case 2: | |
1203 | if (x->array[1] != y->array[1]) | |
1204 | return 0; | |
1205 | case 1: | |
1206 | return x->array[0] == y->array[0]; | |
1207 | break; | |
1208 | default: | |
1209 | abort (); | |
1210 | } | |
1211 | } | |
c6fb90c8 L |
1212 | |
1213 | static INLINE int | |
1214 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
1215 | { | |
1216 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
1217 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
1218 | } |
1219 | ||
c6fb90c8 L |
1220 | static INLINE i386_cpu_flags |
1221 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1222 | { |
c6fb90c8 L |
1223 | switch (ARRAY_SIZE (x.array)) |
1224 | { | |
1225 | case 3: | |
1226 | x.array [2] &= y.array [2]; | |
1227 | case 2: | |
1228 | x.array [1] &= y.array [1]; | |
1229 | case 1: | |
1230 | x.array [0] &= y.array [0]; | |
1231 | break; | |
1232 | default: | |
1233 | abort (); | |
1234 | } | |
1235 | return x; | |
1236 | } | |
40fb9820 | 1237 | |
c6fb90c8 L |
1238 | static INLINE i386_cpu_flags |
1239 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1240 | { |
c6fb90c8 | 1241 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1242 | { |
c6fb90c8 L |
1243 | case 3: |
1244 | x.array [2] |= y.array [2]; | |
1245 | case 2: | |
1246 | x.array [1] |= y.array [1]; | |
1247 | case 1: | |
1248 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1249 | break; |
1250 | default: | |
1251 | abort (); | |
1252 | } | |
40fb9820 L |
1253 | return x; |
1254 | } | |
1255 | ||
c0f3af97 L |
1256 | #define CPU_FLAGS_ARCH_MATCH 0x1 |
1257 | #define CPU_FLAGS_64BIT_MATCH 0x2 | |
a5ff0eb2 | 1258 | #define CPU_FLAGS_AES_MATCH 0x4 |
ce2f5b3c L |
1259 | #define CPU_FLAGS_PCLMUL_MATCH 0x8 |
1260 | #define CPU_FLAGS_AVX_MATCH 0x10 | |
c0f3af97 | 1261 | |
a5ff0eb2 | 1262 | #define CPU_FLAGS_32BIT_MATCH \ |
ce2f5b3c L |
1263 | (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_AES_MATCH \ |
1264 | | CPU_FLAGS_PCLMUL_MATCH | CPU_FLAGS_AVX_MATCH) | |
c0f3af97 L |
1265 | #define CPU_FLAGS_PERFECT_MATCH \ |
1266 | (CPU_FLAGS_32BIT_MATCH | CPU_FLAGS_64BIT_MATCH) | |
1267 | ||
1268 | /* Return CPU flags match bits. */ | |
3629bb00 | 1269 | |
40fb9820 | 1270 | static int |
c0f3af97 | 1271 | cpu_flags_match (const template *t) |
40fb9820 | 1272 | { |
c0f3af97 L |
1273 | i386_cpu_flags x = t->cpu_flags; |
1274 | int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0; | |
40fb9820 L |
1275 | |
1276 | x.bitfield.cpu64 = 0; | |
1277 | x.bitfield.cpuno64 = 0; | |
1278 | ||
0dfbf9d7 | 1279 | if (cpu_flags_all_zero (&x)) |
c0f3af97 L |
1280 | { |
1281 | /* This instruction is available on all archs. */ | |
1282 | match |= CPU_FLAGS_32BIT_MATCH; | |
1283 | } | |
3629bb00 L |
1284 | else |
1285 | { | |
c0f3af97 | 1286 | /* This instruction is available only on some archs. */ |
3629bb00 L |
1287 | i386_cpu_flags cpu = cpu_arch_flags; |
1288 | ||
1289 | cpu.bitfield.cpu64 = 0; | |
1290 | cpu.bitfield.cpuno64 = 0; | |
1291 | cpu = cpu_flags_and (x, cpu); | |
c0f3af97 L |
1292 | if (!cpu_flags_all_zero (&cpu)) |
1293 | { | |
a5ff0eb2 L |
1294 | if (x.bitfield.cpuavx) |
1295 | { | |
ce2f5b3c | 1296 | /* We only need to check AES/PCLMUL/SSE2AVX with AVX. */ |
a5ff0eb2 L |
1297 | if (cpu.bitfield.cpuavx) |
1298 | { | |
1299 | /* Check SSE2AVX. */ | |
1300 | if (!t->opcode_modifier.sse2avx|| sse2avx) | |
1301 | { | |
1302 | match |= (CPU_FLAGS_ARCH_MATCH | |
1303 | | CPU_FLAGS_AVX_MATCH); | |
1304 | /* Check AES. */ | |
1305 | if (!x.bitfield.cpuaes || cpu.bitfield.cpuaes) | |
1306 | match |= CPU_FLAGS_AES_MATCH; | |
ce2f5b3c L |
1307 | /* Check PCLMUL. */ |
1308 | if (!x.bitfield.cpupclmul | |
1309 | || cpu.bitfield.cpupclmul) | |
1310 | match |= CPU_FLAGS_PCLMUL_MATCH; | |
a5ff0eb2 L |
1311 | } |
1312 | } | |
1313 | else | |
1314 | match |= CPU_FLAGS_ARCH_MATCH; | |
1315 | } | |
1316 | else | |
c0f3af97 L |
1317 | match |= CPU_FLAGS_32BIT_MATCH; |
1318 | } | |
3629bb00 | 1319 | } |
c0f3af97 | 1320 | return match; |
40fb9820 L |
1321 | } |
1322 | ||
c6fb90c8 L |
1323 | static INLINE i386_operand_type |
1324 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1325 | { |
c6fb90c8 L |
1326 | switch (ARRAY_SIZE (x.array)) |
1327 | { | |
1328 | case 3: | |
1329 | x.array [2] &= y.array [2]; | |
1330 | case 2: | |
1331 | x.array [1] &= y.array [1]; | |
1332 | case 1: | |
1333 | x.array [0] &= y.array [0]; | |
1334 | break; | |
1335 | default: | |
1336 | abort (); | |
1337 | } | |
1338 | return x; | |
40fb9820 L |
1339 | } |
1340 | ||
c6fb90c8 L |
1341 | static INLINE i386_operand_type |
1342 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1343 | { |
c6fb90c8 | 1344 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1345 | { |
c6fb90c8 L |
1346 | case 3: |
1347 | x.array [2] |= y.array [2]; | |
1348 | case 2: | |
1349 | x.array [1] |= y.array [1]; | |
1350 | case 1: | |
1351 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1352 | break; |
1353 | default: | |
1354 | abort (); | |
1355 | } | |
c6fb90c8 L |
1356 | return x; |
1357 | } | |
40fb9820 | 1358 | |
c6fb90c8 L |
1359 | static INLINE i386_operand_type |
1360 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
1361 | { | |
1362 | switch (ARRAY_SIZE (x.array)) | |
1363 | { | |
1364 | case 3: | |
1365 | x.array [2] ^= y.array [2]; | |
1366 | case 2: | |
1367 | x.array [1] ^= y.array [1]; | |
1368 | case 1: | |
1369 | x.array [0] ^= y.array [0]; | |
1370 | break; | |
1371 | default: | |
1372 | abort (); | |
1373 | } | |
40fb9820 L |
1374 | return x; |
1375 | } | |
1376 | ||
1377 | static const i386_operand_type acc32 = OPERAND_TYPE_ACC32; | |
1378 | static const i386_operand_type acc64 = OPERAND_TYPE_ACC64; | |
1379 | static const i386_operand_type control = OPERAND_TYPE_CONTROL; | |
65da13b5 L |
1380 | static const i386_operand_type inoutportreg |
1381 | = OPERAND_TYPE_INOUTPORTREG; | |
40fb9820 L |
1382 | static const i386_operand_type reg16_inoutportreg |
1383 | = OPERAND_TYPE_REG16_INOUTPORTREG; | |
1384 | static const i386_operand_type disp16 = OPERAND_TYPE_DISP16; | |
1385 | static const i386_operand_type disp32 = OPERAND_TYPE_DISP32; | |
1386 | static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S; | |
1387 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; | |
1388 | static const i386_operand_type anydisp | |
1389 | = OPERAND_TYPE_ANYDISP; | |
40fb9820 | 1390 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
c0f3af97 | 1391 | static const i386_operand_type regymm = OPERAND_TYPE_REGYMM; |
40fb9820 L |
1392 | static const i386_operand_type imm8 = OPERAND_TYPE_IMM8; |
1393 | static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S; | |
1394 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; | |
1395 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
1396 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
1397 | static const i386_operand_type imm64 = OPERAND_TYPE_IMM64; | |
1398 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; | |
1399 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
1400 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
1401 | ||
1402 | enum operand_type | |
1403 | { | |
1404 | reg, | |
40fb9820 L |
1405 | imm, |
1406 | disp, | |
1407 | anymem | |
1408 | }; | |
1409 | ||
c6fb90c8 | 1410 | static INLINE int |
40fb9820 L |
1411 | operand_type_check (i386_operand_type t, enum operand_type c) |
1412 | { | |
1413 | switch (c) | |
1414 | { | |
1415 | case reg: | |
1416 | return (t.bitfield.reg8 | |
1417 | || t.bitfield.reg16 | |
1418 | || t.bitfield.reg32 | |
1419 | || t.bitfield.reg64); | |
1420 | ||
40fb9820 L |
1421 | case imm: |
1422 | return (t.bitfield.imm8 | |
1423 | || t.bitfield.imm8s | |
1424 | || t.bitfield.imm16 | |
1425 | || t.bitfield.imm32 | |
1426 | || t.bitfield.imm32s | |
1427 | || t.bitfield.imm64); | |
1428 | ||
1429 | case disp: | |
1430 | return (t.bitfield.disp8 | |
1431 | || t.bitfield.disp16 | |
1432 | || t.bitfield.disp32 | |
1433 | || t.bitfield.disp32s | |
1434 | || t.bitfield.disp64); | |
1435 | ||
1436 | case anymem: | |
1437 | return (t.bitfield.disp8 | |
1438 | || t.bitfield.disp16 | |
1439 | || t.bitfield.disp32 | |
1440 | || t.bitfield.disp32s | |
1441 | || t.bitfield.disp64 | |
1442 | || t.bitfield.baseindex); | |
1443 | ||
1444 | default: | |
1445 | abort (); | |
1446 | } | |
2cfe26b6 AM |
1447 | |
1448 | return 0; | |
40fb9820 L |
1449 | } |
1450 | ||
5c07affc L |
1451 | /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit on |
1452 | operand J for instruction template T. */ | |
1453 | ||
1454 | static INLINE int | |
1455 | match_reg_size (const template *t, unsigned int j) | |
1456 | { | |
1457 | return !((i.types[j].bitfield.byte | |
1458 | && !t->operand_types[j].bitfield.byte) | |
1459 | || (i.types[j].bitfield.word | |
1460 | && !t->operand_types[j].bitfield.word) | |
1461 | || (i.types[j].bitfield.dword | |
1462 | && !t->operand_types[j].bitfield.dword) | |
1463 | || (i.types[j].bitfield.qword | |
1464 | && !t->operand_types[j].bitfield.qword)); | |
1465 | } | |
1466 | ||
1467 | /* Return 1 if there is no conflict in any size on operand J for | |
1468 | instruction template T. */ | |
1469 | ||
1470 | static INLINE int | |
1471 | match_mem_size (const template *t, unsigned int j) | |
1472 | { | |
1473 | return (match_reg_size (t, j) | |
1474 | && !((i.types[j].bitfield.unspecified | |
1475 | && !t->operand_types[j].bitfield.unspecified) | |
1476 | || (i.types[j].bitfield.fword | |
1477 | && !t->operand_types[j].bitfield.fword) | |
1478 | || (i.types[j].bitfield.tbyte | |
1479 | && !t->operand_types[j].bitfield.tbyte) | |
1480 | || (i.types[j].bitfield.xmmword | |
c0f3af97 L |
1481 | && !t->operand_types[j].bitfield.xmmword) |
1482 | || (i.types[j].bitfield.ymmword | |
1483 | && !t->operand_types[j].bitfield.ymmword))); | |
5c07affc L |
1484 | } |
1485 | ||
1486 | /* Return 1 if there is no size conflict on any operands for | |
1487 | instruction template T. */ | |
1488 | ||
1489 | static INLINE int | |
1490 | operand_size_match (const template *t) | |
1491 | { | |
1492 | unsigned int j; | |
1493 | int match = 1; | |
1494 | ||
1495 | /* Don't check jump instructions. */ | |
1496 | if (t->opcode_modifier.jump | |
1497 | || t->opcode_modifier.jumpbyte | |
1498 | || t->opcode_modifier.jumpdword | |
1499 | || t->opcode_modifier.jumpintersegment) | |
1500 | return match; | |
1501 | ||
1502 | /* Check memory and accumulator operand size. */ | |
1503 | for (j = 0; j < i.operands; j++) | |
1504 | { | |
1505 | if (t->operand_types[j].bitfield.anysize) | |
1506 | continue; | |
1507 | ||
1508 | if (t->operand_types[j].bitfield.acc && !match_reg_size (t, j)) | |
1509 | { | |
1510 | match = 0; | |
1511 | break; | |
1512 | } | |
1513 | ||
1514 | if (i.types[j].bitfield.mem && !match_mem_size (t, j)) | |
1515 | { | |
1516 | match = 0; | |
1517 | break; | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | if (match | |
1522 | || (!t->opcode_modifier.d && !t->opcode_modifier.floatd)) | |
1523 | return match; | |
1524 | ||
1525 | /* Check reverse. */ | |
1526 | assert (i.operands == 2); | |
1527 | ||
1528 | match = 1; | |
1529 | for (j = 0; j < 2; j++) | |
1530 | { | |
1531 | if (t->operand_types[j].bitfield.acc | |
1532 | && !match_reg_size (t, j ? 0 : 1)) | |
1533 | { | |
1534 | match = 0; | |
1535 | break; | |
1536 | } | |
1537 | ||
1538 | if (i.types[j].bitfield.mem | |
1539 | && !match_mem_size (t, j ? 0 : 1)) | |
1540 | { | |
1541 | match = 0; | |
1542 | break; | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | return match; | |
1547 | } | |
1548 | ||
c6fb90c8 | 1549 | static INLINE int |
40fb9820 L |
1550 | operand_type_match (i386_operand_type overlap, |
1551 | i386_operand_type given) | |
1552 | { | |
1553 | i386_operand_type temp = overlap; | |
1554 | ||
1555 | temp.bitfield.jumpabsolute = 0; | |
7d5e4556 | 1556 | temp.bitfield.unspecified = 0; |
5c07affc L |
1557 | temp.bitfield.byte = 0; |
1558 | temp.bitfield.word = 0; | |
1559 | temp.bitfield.dword = 0; | |
1560 | temp.bitfield.fword = 0; | |
1561 | temp.bitfield.qword = 0; | |
1562 | temp.bitfield.tbyte = 0; | |
1563 | temp.bitfield.xmmword = 0; | |
c0f3af97 | 1564 | temp.bitfield.ymmword = 0; |
0dfbf9d7 | 1565 | if (operand_type_all_zero (&temp)) |
40fb9820 L |
1566 | return 0; |
1567 | ||
1568 | return (given.bitfield.baseindex == overlap.bitfield.baseindex | |
1569 | && given.bitfield.jumpabsolute == overlap.bitfield.jumpabsolute); | |
1570 | } | |
1571 | ||
7d5e4556 | 1572 | /* If given types g0 and g1 are registers they must be of the same type |
40fb9820 L |
1573 | unless the expected operand type register overlap is null. |
1574 | Note that Acc in a template matches every size of reg. */ | |
1575 | ||
c6fb90c8 | 1576 | static INLINE int |
40fb9820 L |
1577 | operand_type_register_match (i386_operand_type m0, |
1578 | i386_operand_type g0, | |
1579 | i386_operand_type t0, | |
1580 | i386_operand_type m1, | |
1581 | i386_operand_type g1, | |
1582 | i386_operand_type t1) | |
1583 | { | |
1584 | if (!operand_type_check (g0, reg)) | |
1585 | return 1; | |
1586 | ||
1587 | if (!operand_type_check (g1, reg)) | |
1588 | return 1; | |
1589 | ||
1590 | if (g0.bitfield.reg8 == g1.bitfield.reg8 | |
1591 | && g0.bitfield.reg16 == g1.bitfield.reg16 | |
1592 | && g0.bitfield.reg32 == g1.bitfield.reg32 | |
1593 | && g0.bitfield.reg64 == g1.bitfield.reg64) | |
1594 | return 1; | |
1595 | ||
1596 | if (m0.bitfield.acc) | |
1597 | { | |
1598 | t0.bitfield.reg8 = 1; | |
1599 | t0.bitfield.reg16 = 1; | |
1600 | t0.bitfield.reg32 = 1; | |
1601 | t0.bitfield.reg64 = 1; | |
1602 | } | |
1603 | ||
1604 | if (m1.bitfield.acc) | |
1605 | { | |
1606 | t1.bitfield.reg8 = 1; | |
1607 | t1.bitfield.reg16 = 1; | |
1608 | t1.bitfield.reg32 = 1; | |
1609 | t1.bitfield.reg64 = 1; | |
1610 | } | |
1611 | ||
1612 | return (!(t0.bitfield.reg8 & t1.bitfield.reg8) | |
1613 | && !(t0.bitfield.reg16 & t1.bitfield.reg16) | |
1614 | && !(t0.bitfield.reg32 & t1.bitfield.reg32) | |
1615 | && !(t0.bitfield.reg64 & t1.bitfield.reg64)); | |
1616 | } | |
1617 | ||
252b5132 | 1618 | static INLINE unsigned int |
40fb9820 | 1619 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 1620 | { |
40fb9820 L |
1621 | if (t.bitfield.disp8) |
1622 | return 1; | |
1623 | else if (t.bitfield.disp16 | |
1624 | || t.bitfield.disp32 | |
1625 | || t.bitfield.disp32s) | |
1626 | return 2; | |
1627 | else | |
1628 | return 0; | |
252b5132 RH |
1629 | } |
1630 | ||
1631 | static INLINE int | |
e3bb37b5 | 1632 | fits_in_signed_byte (offsetT num) |
252b5132 RH |
1633 | { |
1634 | return (num >= -128) && (num <= 127); | |
47926f60 | 1635 | } |
252b5132 RH |
1636 | |
1637 | static INLINE int | |
e3bb37b5 | 1638 | fits_in_unsigned_byte (offsetT num) |
252b5132 RH |
1639 | { |
1640 | return (num & 0xff) == num; | |
47926f60 | 1641 | } |
252b5132 RH |
1642 | |
1643 | static INLINE int | |
e3bb37b5 | 1644 | fits_in_unsigned_word (offsetT num) |
252b5132 RH |
1645 | { |
1646 | return (num & 0xffff) == num; | |
47926f60 | 1647 | } |
252b5132 RH |
1648 | |
1649 | static INLINE int | |
e3bb37b5 | 1650 | fits_in_signed_word (offsetT num) |
252b5132 RH |
1651 | { |
1652 | return (-32768 <= num) && (num <= 32767); | |
47926f60 | 1653 | } |
2a962e6d | 1654 | |
3e73aa7c | 1655 | static INLINE int |
e3bb37b5 | 1656 | fits_in_signed_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1657 | { |
1658 | #ifndef BFD64 | |
1659 | return 1; | |
1660 | #else | |
1661 | return (!(((offsetT) -1 << 31) & num) | |
1662 | || (((offsetT) -1 << 31) & num) == ((offsetT) -1 << 31)); | |
1663 | #endif | |
1664 | } /* fits_in_signed_long() */ | |
2a962e6d | 1665 | |
3e73aa7c | 1666 | static INLINE int |
e3bb37b5 | 1667 | fits_in_unsigned_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1668 | { |
1669 | #ifndef BFD64 | |
1670 | return 1; | |
1671 | #else | |
1672 | return (num & (((offsetT) 2 << 31) - 1)) == num; | |
1673 | #endif | |
1674 | } /* fits_in_unsigned_long() */ | |
252b5132 | 1675 | |
40fb9820 | 1676 | static i386_operand_type |
e3bb37b5 | 1677 | smallest_imm_type (offsetT num) |
252b5132 | 1678 | { |
40fb9820 L |
1679 | i386_operand_type t; |
1680 | ||
0dfbf9d7 | 1681 | operand_type_set (&t, 0); |
40fb9820 L |
1682 | t.bitfield.imm64 = 1; |
1683 | ||
1684 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
1685 | { |
1686 | /* This code is disabled on the 486 because all the Imm1 forms | |
1687 | in the opcode table are slower on the i486. They're the | |
1688 | versions with the implicitly specified single-position | |
1689 | displacement, which has another syntax if you really want to | |
1690 | use that form. */ | |
40fb9820 L |
1691 | t.bitfield.imm1 = 1; |
1692 | t.bitfield.imm8 = 1; | |
1693 | t.bitfield.imm8s = 1; | |
1694 | t.bitfield.imm16 = 1; | |
1695 | t.bitfield.imm32 = 1; | |
1696 | t.bitfield.imm32s = 1; | |
1697 | } | |
1698 | else if (fits_in_signed_byte (num)) | |
1699 | { | |
1700 | t.bitfield.imm8 = 1; | |
1701 | t.bitfield.imm8s = 1; | |
1702 | t.bitfield.imm16 = 1; | |
1703 | t.bitfield.imm32 = 1; | |
1704 | t.bitfield.imm32s = 1; | |
1705 | } | |
1706 | else if (fits_in_unsigned_byte (num)) | |
1707 | { | |
1708 | t.bitfield.imm8 = 1; | |
1709 | t.bitfield.imm16 = 1; | |
1710 | t.bitfield.imm32 = 1; | |
1711 | t.bitfield.imm32s = 1; | |
1712 | } | |
1713 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
1714 | { | |
1715 | t.bitfield.imm16 = 1; | |
1716 | t.bitfield.imm32 = 1; | |
1717 | t.bitfield.imm32s = 1; | |
1718 | } | |
1719 | else if (fits_in_signed_long (num)) | |
1720 | { | |
1721 | t.bitfield.imm32 = 1; | |
1722 | t.bitfield.imm32s = 1; | |
1723 | } | |
1724 | else if (fits_in_unsigned_long (num)) | |
1725 | t.bitfield.imm32 = 1; | |
1726 | ||
1727 | return t; | |
47926f60 | 1728 | } |
252b5132 | 1729 | |
847f7ad4 | 1730 | static offsetT |
e3bb37b5 | 1731 | offset_in_range (offsetT val, int size) |
847f7ad4 | 1732 | { |
508866be | 1733 | addressT mask; |
ba2adb93 | 1734 | |
847f7ad4 AM |
1735 | switch (size) |
1736 | { | |
508866be L |
1737 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
1738 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3b0ec529 | 1739 | case 4: mask = ((addressT) 2 << 31) - 1; break; |
3e73aa7c JH |
1740 | #ifdef BFD64 |
1741 | case 8: mask = ((addressT) 2 << 63) - 1; break; | |
1742 | #endif | |
47926f60 | 1743 | default: abort (); |
847f7ad4 AM |
1744 | } |
1745 | ||
ba2adb93 | 1746 | /* If BFD64, sign extend val. */ |
3e73aa7c JH |
1747 | if (!use_rela_relocations) |
1748 | if ((val & ~(((addressT) 2 << 31) - 1)) == 0) | |
1749 | val = (val ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
ba2adb93 | 1750 | |
47926f60 | 1751 | if ((val & ~mask) != 0 && (val & ~mask) != ~mask) |
847f7ad4 AM |
1752 | { |
1753 | char buf1[40], buf2[40]; | |
1754 | ||
1755 | sprint_value (buf1, val); | |
1756 | sprint_value (buf2, val & mask); | |
1757 | as_warn (_("%s shortened to %s"), buf1, buf2); | |
1758 | } | |
1759 | return val & mask; | |
1760 | } | |
1761 | ||
252b5132 RH |
1762 | /* Returns 0 if attempting to add a prefix where one from the same |
1763 | class already exists, 1 if non rep/repne added, 2 if rep/repne | |
1764 | added. */ | |
1765 | static int | |
e3bb37b5 | 1766 | add_prefix (unsigned int prefix) |
252b5132 RH |
1767 | { |
1768 | int ret = 1; | |
b1905489 | 1769 | unsigned int q; |
252b5132 | 1770 | |
29b0f896 AM |
1771 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
1772 | && flag_code == CODE_64BIT) | |
b1905489 | 1773 | { |
161a04f6 L |
1774 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
1775 | || ((i.prefix[REX_PREFIX] & (REX_R | REX_X | REX_B)) | |
1776 | && (prefix & (REX_R | REX_X | REX_B)))) | |
b1905489 JB |
1777 | ret = 0; |
1778 | q = REX_PREFIX; | |
1779 | } | |
3e73aa7c | 1780 | else |
b1905489 JB |
1781 | { |
1782 | switch (prefix) | |
1783 | { | |
1784 | default: | |
1785 | abort (); | |
1786 | ||
1787 | case CS_PREFIX_OPCODE: | |
1788 | case DS_PREFIX_OPCODE: | |
1789 | case ES_PREFIX_OPCODE: | |
1790 | case FS_PREFIX_OPCODE: | |
1791 | case GS_PREFIX_OPCODE: | |
1792 | case SS_PREFIX_OPCODE: | |
1793 | q = SEG_PREFIX; | |
1794 | break; | |
1795 | ||
1796 | case REPNE_PREFIX_OPCODE: | |
1797 | case REPE_PREFIX_OPCODE: | |
1798 | ret = 2; | |
1799 | /* fall thru */ | |
1800 | case LOCK_PREFIX_OPCODE: | |
1801 | q = LOCKREP_PREFIX; | |
1802 | break; | |
1803 | ||
1804 | case FWAIT_OPCODE: | |
1805 | q = WAIT_PREFIX; | |
1806 | break; | |
1807 | ||
1808 | case ADDR_PREFIX_OPCODE: | |
1809 | q = ADDR_PREFIX; | |
1810 | break; | |
1811 | ||
1812 | case DATA_PREFIX_OPCODE: | |
1813 | q = DATA_PREFIX; | |
1814 | break; | |
1815 | } | |
1816 | if (i.prefix[q] != 0) | |
1817 | ret = 0; | |
1818 | } | |
252b5132 | 1819 | |
b1905489 | 1820 | if (ret) |
252b5132 | 1821 | { |
b1905489 JB |
1822 | if (!i.prefix[q]) |
1823 | ++i.prefixes; | |
1824 | i.prefix[q] |= prefix; | |
252b5132 | 1825 | } |
b1905489 JB |
1826 | else |
1827 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 1828 | |
252b5132 RH |
1829 | return ret; |
1830 | } | |
1831 | ||
1832 | static void | |
e3bb37b5 | 1833 | set_code_flag (int value) |
eecb386c | 1834 | { |
3e73aa7c | 1835 | flag_code = value; |
40fb9820 L |
1836 | if (flag_code == CODE_64BIT) |
1837 | { | |
1838 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1839 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
40fb9820 L |
1840 | } |
1841 | else | |
1842 | { | |
1843 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1844 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
40fb9820 L |
1845 | } |
1846 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c JH |
1847 | { |
1848 | as_bad (_("64bit mode not supported on this CPU.")); | |
1849 | } | |
40fb9820 | 1850 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c JH |
1851 | { |
1852 | as_bad (_("32bit mode not supported on this CPU.")); | |
1853 | } | |
eecb386c AM |
1854 | stackop_size = '\0'; |
1855 | } | |
1856 | ||
1857 | static void | |
e3bb37b5 | 1858 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 1859 | { |
3e73aa7c | 1860 | flag_code = new_code_flag; |
40fb9820 L |
1861 | if (flag_code != CODE_16BIT) |
1862 | abort (); | |
1863 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1864 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
9306ca4a | 1865 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
1866 | } |
1867 | ||
1868 | static void | |
e3bb37b5 | 1869 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
1870 | { |
1871 | /* Find out if register prefixing is specified. */ | |
1872 | int ask_naked_reg = 0; | |
1873 | ||
1874 | SKIP_WHITESPACE (); | |
29b0f896 | 1875 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 RH |
1876 | { |
1877 | char *string = input_line_pointer; | |
1878 | int e = get_symbol_end (); | |
1879 | ||
47926f60 | 1880 | if (strcmp (string, "prefix") == 0) |
252b5132 | 1881 | ask_naked_reg = 1; |
47926f60 | 1882 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
1883 | ask_naked_reg = -1; |
1884 | else | |
d0b47220 | 1885 | as_bad (_("bad argument to syntax directive.")); |
252b5132 RH |
1886 | *input_line_pointer = e; |
1887 | } | |
1888 | demand_empty_rest_of_line (); | |
c3332e24 | 1889 | |
252b5132 RH |
1890 | intel_syntax = syntax_flag; |
1891 | ||
1892 | if (ask_naked_reg == 0) | |
f86103b7 AM |
1893 | allow_naked_reg = (intel_syntax |
1894 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
1895 | else |
1896 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 1897 | |
e4a3b5a4 | 1898 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 1899 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 1900 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
1901 | } |
1902 | ||
1efbbeb4 L |
1903 | static void |
1904 | set_intel_mnemonic (int mnemonic_flag) | |
1905 | { | |
e1d4d893 | 1906 | intel_mnemonic = mnemonic_flag; |
1efbbeb4 L |
1907 | } |
1908 | ||
db51cc60 L |
1909 | static void |
1910 | set_allow_index_reg (int flag) | |
1911 | { | |
1912 | allow_index_reg = flag; | |
1913 | } | |
1914 | ||
cb19c032 L |
1915 | static void |
1916 | set_sse_check (int dummy ATTRIBUTE_UNUSED) | |
1917 | { | |
1918 | SKIP_WHITESPACE (); | |
1919 | ||
1920 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
1921 | { | |
1922 | char *string = input_line_pointer; | |
1923 | int e = get_symbol_end (); | |
1924 | ||
1925 | if (strcmp (string, "none") == 0) | |
1926 | sse_check = sse_check_none; | |
1927 | else if (strcmp (string, "warning") == 0) | |
1928 | sse_check = sse_check_warning; | |
1929 | else if (strcmp (string, "error") == 0) | |
1930 | sse_check = sse_check_error; | |
1931 | else | |
1932 | as_bad (_("bad argument to sse_check directive.")); | |
1933 | *input_line_pointer = e; | |
1934 | } | |
1935 | else | |
1936 | as_bad (_("missing argument for sse_check directive")); | |
1937 | ||
1938 | demand_empty_rest_of_line (); | |
1939 | } | |
1940 | ||
e413e4e9 | 1941 | static void |
e3bb37b5 | 1942 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 1943 | { |
47926f60 | 1944 | SKIP_WHITESPACE (); |
e413e4e9 | 1945 | |
29b0f896 | 1946 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 AM |
1947 | { |
1948 | char *string = input_line_pointer; | |
1949 | int e = get_symbol_end (); | |
9103f4f4 | 1950 | unsigned int i; |
40fb9820 | 1951 | i386_cpu_flags flags; |
e413e4e9 | 1952 | |
9103f4f4 | 1953 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) |
e413e4e9 AM |
1954 | { |
1955 | if (strcmp (string, cpu_arch[i].name) == 0) | |
1956 | { | |
5c6af06e JB |
1957 | if (*string != '.') |
1958 | { | |
1959 | cpu_arch_name = cpu_arch[i].name; | |
1960 | cpu_sub_arch_name = NULL; | |
40fb9820 L |
1961 | cpu_arch_flags = cpu_arch[i].flags; |
1962 | if (flag_code == CODE_64BIT) | |
1963 | { | |
1964 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1965 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
1966 | } | |
1967 | else | |
1968 | { | |
1969 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1970 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
1971 | } | |
ccc9c027 | 1972 | cpu_arch_isa = cpu_arch[i].type; |
9103f4f4 | 1973 | cpu_arch_isa_flags = cpu_arch[i].flags; |
ccc9c027 L |
1974 | if (!cpu_arch_tune_set) |
1975 | { | |
1976 | cpu_arch_tune = cpu_arch_isa; | |
1977 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
1978 | } | |
5c6af06e JB |
1979 | break; |
1980 | } | |
40fb9820 | 1981 | |
c6fb90c8 L |
1982 | flags = cpu_flags_or (cpu_arch_flags, |
1983 | cpu_arch[i].flags); | |
0dfbf9d7 | 1984 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
5c6af06e | 1985 | { |
6305a203 L |
1986 | if (cpu_sub_arch_name) |
1987 | { | |
1988 | char *name = cpu_sub_arch_name; | |
1989 | cpu_sub_arch_name = concat (name, | |
1990 | cpu_arch[i].name, | |
1bf57e9f | 1991 | (const char *) NULL); |
6305a203 L |
1992 | free (name); |
1993 | } | |
1994 | else | |
1995 | cpu_sub_arch_name = xstrdup (cpu_arch[i].name); | |
40fb9820 | 1996 | cpu_arch_flags = flags; |
5c6af06e JB |
1997 | } |
1998 | *input_line_pointer = e; | |
1999 | demand_empty_rest_of_line (); | |
2000 | return; | |
e413e4e9 AM |
2001 | } |
2002 | } | |
9103f4f4 | 2003 | if (i >= ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
2004 | as_bad (_("no such architecture: `%s'"), string); |
2005 | ||
2006 | *input_line_pointer = e; | |
2007 | } | |
2008 | else | |
2009 | as_bad (_("missing cpu architecture")); | |
2010 | ||
fddf5b5b AM |
2011 | no_cond_jump_promotion = 0; |
2012 | if (*input_line_pointer == ',' | |
29b0f896 | 2013 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b AM |
2014 | { |
2015 | char *string = ++input_line_pointer; | |
2016 | int e = get_symbol_end (); | |
2017 | ||
2018 | if (strcmp (string, "nojumps") == 0) | |
2019 | no_cond_jump_promotion = 1; | |
2020 | else if (strcmp (string, "jumps") == 0) | |
2021 | ; | |
2022 | else | |
2023 | as_bad (_("no such architecture modifier: `%s'"), string); | |
2024 | ||
2025 | *input_line_pointer = e; | |
2026 | } | |
2027 | ||
e413e4e9 AM |
2028 | demand_empty_rest_of_line (); |
2029 | } | |
2030 | ||
b9d79e03 JH |
2031 | unsigned long |
2032 | i386_mach () | |
2033 | { | |
2034 | if (!strcmp (default_arch, "x86_64")) | |
2035 | return bfd_mach_x86_64; | |
2036 | else if (!strcmp (default_arch, "i386")) | |
2037 | return bfd_mach_i386_i386; | |
2038 | else | |
2039 | as_fatal (_("Unknown architecture")); | |
2040 | } | |
b9d79e03 | 2041 | \f |
252b5132 RH |
2042 | void |
2043 | md_begin () | |
2044 | { | |
2045 | const char *hash_err; | |
2046 | ||
47926f60 | 2047 | /* Initialize op_hash hash table. */ |
252b5132 RH |
2048 | op_hash = hash_new (); |
2049 | ||
2050 | { | |
29b0f896 AM |
2051 | const template *optab; |
2052 | templates *core_optab; | |
252b5132 | 2053 | |
47926f60 KH |
2054 | /* Setup for loop. */ |
2055 | optab = i386_optab; | |
252b5132 RH |
2056 | core_optab = (templates *) xmalloc (sizeof (templates)); |
2057 | core_optab->start = optab; | |
2058 | ||
2059 | while (1) | |
2060 | { | |
2061 | ++optab; | |
2062 | if (optab->name == NULL | |
2063 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
2064 | { | |
2065 | /* different name --> ship out current template list; | |
47926f60 | 2066 | add to hash table; & begin anew. */ |
252b5132 RH |
2067 | core_optab->end = optab; |
2068 | hash_err = hash_insert (op_hash, | |
2069 | (optab - 1)->name, | |
5a49b8ac | 2070 | (void *) core_optab); |
252b5132 RH |
2071 | if (hash_err) |
2072 | { | |
252b5132 RH |
2073 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
2074 | (optab - 1)->name, | |
2075 | hash_err); | |
2076 | } | |
2077 | if (optab->name == NULL) | |
2078 | break; | |
2079 | core_optab = (templates *) xmalloc (sizeof (templates)); | |
2080 | core_optab->start = optab; | |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | ||
47926f60 | 2085 | /* Initialize reg_hash hash table. */ |
252b5132 RH |
2086 | reg_hash = hash_new (); |
2087 | { | |
29b0f896 | 2088 | const reg_entry *regtab; |
c3fe08fa | 2089 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 2090 | |
c3fe08fa | 2091 | for (regtab = i386_regtab; regtab_size--; regtab++) |
252b5132 | 2092 | { |
5a49b8ac | 2093 | hash_err = hash_insert (reg_hash, regtab->reg_name, (void *) regtab); |
252b5132 | 2094 | if (hash_err) |
3e73aa7c JH |
2095 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
2096 | regtab->reg_name, | |
2097 | hash_err); | |
252b5132 RH |
2098 | } |
2099 | } | |
2100 | ||
47926f60 | 2101 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 2102 | { |
29b0f896 AM |
2103 | int c; |
2104 | char *p; | |
252b5132 RH |
2105 | |
2106 | for (c = 0; c < 256; c++) | |
2107 | { | |
3882b010 | 2108 | if (ISDIGIT (c)) |
252b5132 RH |
2109 | { |
2110 | digit_chars[c] = c; | |
2111 | mnemonic_chars[c] = c; | |
2112 | register_chars[c] = c; | |
2113 | operand_chars[c] = c; | |
2114 | } | |
3882b010 | 2115 | else if (ISLOWER (c)) |
252b5132 RH |
2116 | { |
2117 | mnemonic_chars[c] = c; | |
2118 | register_chars[c] = c; | |
2119 | operand_chars[c] = c; | |
2120 | } | |
3882b010 | 2121 | else if (ISUPPER (c)) |
252b5132 | 2122 | { |
3882b010 | 2123 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
2124 | register_chars[c] = mnemonic_chars[c]; |
2125 | operand_chars[c] = c; | |
2126 | } | |
2127 | ||
3882b010 | 2128 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
2129 | identifier_chars[c] = c; |
2130 | else if (c >= 128) | |
2131 | { | |
2132 | identifier_chars[c] = c; | |
2133 | operand_chars[c] = c; | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | #ifdef LEX_AT | |
2138 | identifier_chars['@'] = '@'; | |
32137342 NC |
2139 | #endif |
2140 | #ifdef LEX_QM | |
2141 | identifier_chars['?'] = '?'; | |
2142 | operand_chars['?'] = '?'; | |
252b5132 | 2143 | #endif |
252b5132 | 2144 | digit_chars['-'] = '-'; |
c0f3af97 | 2145 | mnemonic_chars['_'] = '_'; |
791fe849 | 2146 | mnemonic_chars['-'] = '-'; |
0003779b | 2147 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
2148 | identifier_chars['_'] = '_'; |
2149 | identifier_chars['.'] = '.'; | |
2150 | ||
2151 | for (p = operand_special_chars; *p != '\0'; p++) | |
2152 | operand_chars[(unsigned char) *p] = *p; | |
2153 | } | |
2154 | ||
2155 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 2156 | if (IS_ELF) |
252b5132 RH |
2157 | { |
2158 | record_alignment (text_section, 2); | |
2159 | record_alignment (data_section, 2); | |
2160 | record_alignment (bss_section, 2); | |
2161 | } | |
2162 | #endif | |
a4447b93 RH |
2163 | |
2164 | if (flag_code == CODE_64BIT) | |
2165 | { | |
2166 | x86_dwarf2_return_column = 16; | |
2167 | x86_cie_data_alignment = -8; | |
2168 | } | |
2169 | else | |
2170 | { | |
2171 | x86_dwarf2_return_column = 8; | |
2172 | x86_cie_data_alignment = -4; | |
2173 | } | |
252b5132 RH |
2174 | } |
2175 | ||
2176 | void | |
e3bb37b5 | 2177 | i386_print_statistics (FILE *file) |
252b5132 RH |
2178 | { |
2179 | hash_print_statistics (file, "i386 opcode", op_hash); | |
2180 | hash_print_statistics (file, "i386 register", reg_hash); | |
2181 | } | |
2182 | \f | |
252b5132 RH |
2183 | #ifdef DEBUG386 |
2184 | ||
ce8a8b2f | 2185 | /* Debugging routines for md_assemble. */ |
e3bb37b5 | 2186 | static void pte (template *); |
40fb9820 | 2187 | static void pt (i386_operand_type); |
e3bb37b5 L |
2188 | static void pe (expressionS *); |
2189 | static void ps (symbolS *); | |
252b5132 RH |
2190 | |
2191 | static void | |
e3bb37b5 | 2192 | pi (char *line, i386_insn *x) |
252b5132 | 2193 | { |
09f131f2 | 2194 | unsigned int i; |
252b5132 RH |
2195 | |
2196 | fprintf (stdout, "%s: template ", line); | |
2197 | pte (&x->tm); | |
09f131f2 JH |
2198 | fprintf (stdout, " address: base %s index %s scale %x\n", |
2199 | x->base_reg ? x->base_reg->reg_name : "none", | |
2200 | x->index_reg ? x->index_reg->reg_name : "none", | |
2201 | x->log2_scale_factor); | |
2202 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 2203 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
2204 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
2205 | x->sib.base, x->sib.index, x->sib.scale); | |
2206 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
2207 | (x->rex & REX_W) != 0, |
2208 | (x->rex & REX_R) != 0, | |
2209 | (x->rex & REX_X) != 0, | |
2210 | (x->rex & REX_B) != 0); | |
85f10a01 MM |
2211 | fprintf (stdout, " drex: reg %d rex 0x%x\n", |
2212 | x->drex.reg, x->drex.rex); | |
252b5132 RH |
2213 | for (i = 0; i < x->operands; i++) |
2214 | { | |
2215 | fprintf (stdout, " #%d: ", i + 1); | |
2216 | pt (x->types[i]); | |
2217 | fprintf (stdout, "\n"); | |
40fb9820 L |
2218 | if (x->types[i].bitfield.reg8 |
2219 | || x->types[i].bitfield.reg16 | |
2220 | || x->types[i].bitfield.reg32 | |
2221 | || x->types[i].bitfield.reg64 | |
2222 | || x->types[i].bitfield.regmmx | |
2223 | || x->types[i].bitfield.regxmm | |
c0f3af97 | 2224 | || x->types[i].bitfield.regymm |
40fb9820 L |
2225 | || x->types[i].bitfield.sreg2 |
2226 | || x->types[i].bitfield.sreg3 | |
2227 | || x->types[i].bitfield.control | |
2228 | || x->types[i].bitfield.debug | |
2229 | || x->types[i].bitfield.test) | |
520dc8e8 | 2230 | fprintf (stdout, "%s\n", x->op[i].regs->reg_name); |
40fb9820 | 2231 | if (operand_type_check (x->types[i], imm)) |
520dc8e8 | 2232 | pe (x->op[i].imms); |
40fb9820 | 2233 | if (operand_type_check (x->types[i], disp)) |
520dc8e8 | 2234 | pe (x->op[i].disps); |
252b5132 RH |
2235 | } |
2236 | } | |
2237 | ||
2238 | static void | |
e3bb37b5 | 2239 | pte (template *t) |
252b5132 | 2240 | { |
09f131f2 | 2241 | unsigned int i; |
252b5132 | 2242 | fprintf (stdout, " %d operands ", t->operands); |
47926f60 | 2243 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
2244 | if (t->extension_opcode != None) |
2245 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 2246 | if (t->opcode_modifier.d) |
252b5132 | 2247 | fprintf (stdout, "D"); |
40fb9820 | 2248 | if (t->opcode_modifier.w) |
252b5132 RH |
2249 | fprintf (stdout, "W"); |
2250 | fprintf (stdout, "\n"); | |
2251 | for (i = 0; i < t->operands; i++) | |
2252 | { | |
2253 | fprintf (stdout, " #%d type ", i + 1); | |
2254 | pt (t->operand_types[i]); | |
2255 | fprintf (stdout, "\n"); | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | static void | |
e3bb37b5 | 2260 | pe (expressionS *e) |
252b5132 | 2261 | { |
24eab124 | 2262 | fprintf (stdout, " operation %d\n", e->X_op); |
b77ad1d4 AM |
2263 | fprintf (stdout, " add_number %ld (%lx)\n", |
2264 | (long) e->X_add_number, (long) e->X_add_number); | |
252b5132 RH |
2265 | if (e->X_add_symbol) |
2266 | { | |
2267 | fprintf (stdout, " add_symbol "); | |
2268 | ps (e->X_add_symbol); | |
2269 | fprintf (stdout, "\n"); | |
2270 | } | |
2271 | if (e->X_op_symbol) | |
2272 | { | |
2273 | fprintf (stdout, " op_symbol "); | |
2274 | ps (e->X_op_symbol); | |
2275 | fprintf (stdout, "\n"); | |
2276 | } | |
2277 | } | |
2278 | ||
2279 | static void | |
e3bb37b5 | 2280 | ps (symbolS *s) |
252b5132 RH |
2281 | { |
2282 | fprintf (stdout, "%s type %s%s", | |
2283 | S_GET_NAME (s), | |
2284 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
2285 | segment_name (S_GET_SEGMENT (s))); | |
2286 | } | |
2287 | ||
7b81dfbb | 2288 | static struct type_name |
252b5132 | 2289 | { |
40fb9820 L |
2290 | i386_operand_type mask; |
2291 | const char *name; | |
252b5132 | 2292 | } |
7b81dfbb | 2293 | const type_names[] = |
252b5132 | 2294 | { |
40fb9820 L |
2295 | { OPERAND_TYPE_REG8, "r8" }, |
2296 | { OPERAND_TYPE_REG16, "r16" }, | |
2297 | { OPERAND_TYPE_REG32, "r32" }, | |
2298 | { OPERAND_TYPE_REG64, "r64" }, | |
2299 | { OPERAND_TYPE_IMM8, "i8" }, | |
2300 | { OPERAND_TYPE_IMM8, "i8s" }, | |
2301 | { OPERAND_TYPE_IMM16, "i16" }, | |
2302 | { OPERAND_TYPE_IMM32, "i32" }, | |
2303 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
2304 | { OPERAND_TYPE_IMM64, "i64" }, | |
2305 | { OPERAND_TYPE_IMM1, "i1" }, | |
2306 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
2307 | { OPERAND_TYPE_DISP8, "d8" }, | |
2308 | { OPERAND_TYPE_DISP16, "d16" }, | |
2309 | { OPERAND_TYPE_DISP32, "d32" }, | |
2310 | { OPERAND_TYPE_DISP32S, "d32s" }, | |
2311 | { OPERAND_TYPE_DISP64, "d64" }, | |
2312 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
2313 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
2314 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
2315 | { OPERAND_TYPE_TEST, "test reg" }, | |
2316 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
2317 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
2318 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
2319 | { OPERAND_TYPE_SREG2, "SReg2" }, | |
2320 | { OPERAND_TYPE_SREG3, "SReg3" }, | |
2321 | { OPERAND_TYPE_ACC, "Acc" }, | |
2322 | { OPERAND_TYPE_JUMPABSOLUTE, "Jump Absolute" }, | |
2323 | { OPERAND_TYPE_REGMMX, "rMMX" }, | |
2324 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
0349dc08 | 2325 | { OPERAND_TYPE_REGYMM, "rYMM" }, |
40fb9820 | 2326 | { OPERAND_TYPE_ESSEG, "es" }, |
252b5132 RH |
2327 | }; |
2328 | ||
2329 | static void | |
40fb9820 | 2330 | pt (i386_operand_type t) |
252b5132 | 2331 | { |
40fb9820 | 2332 | unsigned int j; |
c6fb90c8 | 2333 | i386_operand_type a; |
252b5132 | 2334 | |
40fb9820 | 2335 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
2336 | { |
2337 | a = operand_type_and (t, type_names[j].mask); | |
0349dc08 | 2338 | if (!operand_type_all_zero (&a)) |
c6fb90c8 L |
2339 | fprintf (stdout, "%s, ", type_names[j].name); |
2340 | } | |
252b5132 RH |
2341 | fflush (stdout); |
2342 | } | |
2343 | ||
2344 | #endif /* DEBUG386 */ | |
2345 | \f | |
252b5132 | 2346 | static bfd_reloc_code_real_type |
3956db08 | 2347 | reloc (unsigned int size, |
64e74474 AM |
2348 | int pcrel, |
2349 | int sign, | |
2350 | bfd_reloc_code_real_type other) | |
252b5132 | 2351 | { |
47926f60 | 2352 | if (other != NO_RELOC) |
3956db08 JB |
2353 | { |
2354 | reloc_howto_type *reloc; | |
2355 | ||
2356 | if (size == 8) | |
2357 | switch (other) | |
2358 | { | |
64e74474 AM |
2359 | case BFD_RELOC_X86_64_GOT32: |
2360 | return BFD_RELOC_X86_64_GOT64; | |
2361 | break; | |
2362 | case BFD_RELOC_X86_64_PLTOFF64: | |
2363 | return BFD_RELOC_X86_64_PLTOFF64; | |
2364 | break; | |
2365 | case BFD_RELOC_X86_64_GOTPC32: | |
2366 | other = BFD_RELOC_X86_64_GOTPC64; | |
2367 | break; | |
2368 | case BFD_RELOC_X86_64_GOTPCREL: | |
2369 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
2370 | break; | |
2371 | case BFD_RELOC_X86_64_TPOFF32: | |
2372 | other = BFD_RELOC_X86_64_TPOFF64; | |
2373 | break; | |
2374 | case BFD_RELOC_X86_64_DTPOFF32: | |
2375 | other = BFD_RELOC_X86_64_DTPOFF64; | |
2376 | break; | |
2377 | default: | |
2378 | break; | |
3956db08 | 2379 | } |
e05278af JB |
2380 | |
2381 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ | |
2382 | if (size == 4 && flag_code != CODE_64BIT) | |
2383 | sign = -1; | |
2384 | ||
3956db08 JB |
2385 | reloc = bfd_reloc_type_lookup (stdoutput, other); |
2386 | if (!reloc) | |
2387 | as_bad (_("unknown relocation (%u)"), other); | |
2388 | else if (size != bfd_get_reloc_size (reloc)) | |
2389 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), | |
2390 | bfd_get_reloc_size (reloc), | |
2391 | size); | |
2392 | else if (pcrel && !reloc->pc_relative) | |
2393 | as_bad (_("non-pc-relative relocation for pc-relative field")); | |
2394 | else if ((reloc->complain_on_overflow == complain_overflow_signed | |
2395 | && !sign) | |
2396 | || (reloc->complain_on_overflow == complain_overflow_unsigned | |
64e74474 | 2397 | && sign > 0)) |
3956db08 JB |
2398 | as_bad (_("relocated field and relocation type differ in signedness")); |
2399 | else | |
2400 | return other; | |
2401 | return NO_RELOC; | |
2402 | } | |
252b5132 RH |
2403 | |
2404 | if (pcrel) | |
2405 | { | |
3e73aa7c | 2406 | if (!sign) |
3956db08 | 2407 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
2408 | switch (size) |
2409 | { | |
2410 | case 1: return BFD_RELOC_8_PCREL; | |
2411 | case 2: return BFD_RELOC_16_PCREL; | |
2412 | case 4: return BFD_RELOC_32_PCREL; | |
d6ab8113 | 2413 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 2414 | } |
3956db08 | 2415 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
2416 | } |
2417 | else | |
2418 | { | |
3956db08 | 2419 | if (sign > 0) |
e5cb08ac | 2420 | switch (size) |
3e73aa7c JH |
2421 | { |
2422 | case 4: return BFD_RELOC_X86_64_32S; | |
2423 | } | |
2424 | else | |
2425 | switch (size) | |
2426 | { | |
2427 | case 1: return BFD_RELOC_8; | |
2428 | case 2: return BFD_RELOC_16; | |
2429 | case 4: return BFD_RELOC_32; | |
2430 | case 8: return BFD_RELOC_64; | |
2431 | } | |
3956db08 JB |
2432 | as_bad (_("cannot do %s %u byte relocation"), |
2433 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
2434 | } |
2435 | ||
bfb32b52 | 2436 | abort (); |
252b5132 RH |
2437 | return BFD_RELOC_NONE; |
2438 | } | |
2439 | ||
47926f60 KH |
2440 | /* Here we decide which fixups can be adjusted to make them relative to |
2441 | the beginning of the section instead of the symbol. Basically we need | |
2442 | to make sure that the dynamic relocations are done correctly, so in | |
2443 | some cases we force the original symbol to be used. */ | |
2444 | ||
252b5132 | 2445 | int |
e3bb37b5 | 2446 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 2447 | { |
6d249963 | 2448 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 2449 | if (!IS_ELF) |
31312f95 AM |
2450 | return 1; |
2451 | ||
a161fe53 AM |
2452 | /* Don't adjust pc-relative references to merge sections in 64-bit |
2453 | mode. */ | |
2454 | if (use_rela_relocations | |
2455 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
2456 | && fixP->fx_pcrel) | |
252b5132 | 2457 | return 0; |
31312f95 | 2458 | |
8d01d9a9 AJ |
2459 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
2460 | and changed later by validate_fix. */ | |
2461 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
2462 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
2463 | return 0; | |
2464 | ||
ce8a8b2f | 2465 | /* adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
2466 | if (fixP->fx_r_type == BFD_RELOC_386_GOTOFF |
2467 | || fixP->fx_r_type == BFD_RELOC_386_PLT32 | |
2468 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 | |
13ae64f3 JJ |
2469 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
2470 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
2471 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
2472 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
2473 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
2474 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
2475 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
2476 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
2477 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
2478 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c JH |
2479 | || fixP->fx_r_type == BFD_RELOC_X86_64_PLT32 |
2480 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 | |
80b3ee89 | 2481 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
bffbf940 JJ |
2482 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
2483 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
2484 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 2485 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
2486 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
2487 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
2488 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
2489 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
2490 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
2491 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
2492 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
2493 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2494 | return 0; | |
31312f95 | 2495 | #endif |
252b5132 RH |
2496 | return 1; |
2497 | } | |
252b5132 | 2498 | |
b4cac588 | 2499 | static int |
e3bb37b5 | 2500 | intel_float_operand (const char *mnemonic) |
252b5132 | 2501 | { |
9306ca4a JB |
2502 | /* Note that the value returned is meaningful only for opcodes with (memory) |
2503 | operands, hence the code here is free to improperly handle opcodes that | |
2504 | have no operands (for better performance and smaller code). */ | |
2505 | ||
2506 | if (mnemonic[0] != 'f') | |
2507 | return 0; /* non-math */ | |
2508 | ||
2509 | switch (mnemonic[1]) | |
2510 | { | |
2511 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
2512 | the fs segment override prefix not currently handled because no | |
2513 | call path can make opcodes without operands get here */ | |
2514 | case 'i': | |
2515 | return 2 /* integer op */; | |
2516 | case 'l': | |
2517 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
2518 | return 3; /* fldcw/fldenv */ | |
2519 | break; | |
2520 | case 'n': | |
2521 | if (mnemonic[2] != 'o' /* fnop */) | |
2522 | return 3; /* non-waiting control op */ | |
2523 | break; | |
2524 | case 'r': | |
2525 | if (mnemonic[2] == 's') | |
2526 | return 3; /* frstor/frstpm */ | |
2527 | break; | |
2528 | case 's': | |
2529 | if (mnemonic[2] == 'a') | |
2530 | return 3; /* fsave */ | |
2531 | if (mnemonic[2] == 't') | |
2532 | { | |
2533 | switch (mnemonic[3]) | |
2534 | { | |
2535 | case 'c': /* fstcw */ | |
2536 | case 'd': /* fstdw */ | |
2537 | case 'e': /* fstenv */ | |
2538 | case 's': /* fsts[gw] */ | |
2539 | return 3; | |
2540 | } | |
2541 | } | |
2542 | break; | |
2543 | case 'x': | |
2544 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
2545 | return 0; /* fxsave/fxrstor are not really math ops */ | |
2546 | break; | |
2547 | } | |
252b5132 | 2548 | |
9306ca4a | 2549 | return 1; |
252b5132 RH |
2550 | } |
2551 | ||
c0f3af97 L |
2552 | /* Build the VEX prefix. */ |
2553 | ||
2554 | static void | |
fa99fab2 | 2555 | build_vex_prefix (const template *t) |
c0f3af97 L |
2556 | { |
2557 | unsigned int register_specifier; | |
2558 | unsigned int implied_prefix; | |
2559 | unsigned int vector_length; | |
2560 | ||
2561 | /* Check register specifier. */ | |
2562 | if (i.vex.register_specifier) | |
2563 | { | |
2564 | register_specifier = i.vex.register_specifier->reg_num; | |
2565 | if ((i.vex.register_specifier->reg_flags & RegRex)) | |
2566 | register_specifier += 8; | |
2567 | register_specifier = ~register_specifier & 0xf; | |
2568 | } | |
2569 | else | |
2570 | register_specifier = 0xf; | |
2571 | ||
fa99fab2 L |
2572 | /* Use 2-byte VEX prefix by swappping destination and source |
2573 | operand. */ | |
2574 | if (!i.swap_operand | |
2575 | && i.operands == i.reg_operands | |
2576 | && i.tm.opcode_modifier.vex0f | |
2577 | && i.tm.opcode_modifier.s | |
2578 | && i.rex == REX_B) | |
2579 | { | |
2580 | unsigned int xchg = i.operands - 1; | |
2581 | union i386_op temp_op; | |
2582 | i386_operand_type temp_type; | |
2583 | ||
2584 | temp_type = i.types[xchg]; | |
2585 | i.types[xchg] = i.types[0]; | |
2586 | i.types[0] = temp_type; | |
2587 | temp_op = i.op[xchg]; | |
2588 | i.op[xchg] = i.op[0]; | |
2589 | i.op[0] = temp_op; | |
2590 | ||
2591 | assert (i.rm.mode == 3); | |
2592 | ||
2593 | i.rex = REX_R; | |
2594 | xchg = i.rm.regmem; | |
2595 | i.rm.regmem = i.rm.reg; | |
2596 | i.rm.reg = xchg; | |
2597 | ||
2598 | /* Use the next insn. */ | |
2599 | i.tm = t[1]; | |
2600 | } | |
2601 | ||
c0f3af97 L |
2602 | vector_length = i.tm.opcode_modifier.vex256 ? 1 : 0; |
2603 | ||
2604 | switch ((i.tm.base_opcode >> 8) & 0xff) | |
2605 | { | |
2606 | case 0: | |
2607 | implied_prefix = 0; | |
2608 | break; | |
2609 | case DATA_PREFIX_OPCODE: | |
2610 | implied_prefix = 1; | |
2611 | break; | |
2612 | case REPE_PREFIX_OPCODE: | |
2613 | implied_prefix = 2; | |
2614 | break; | |
2615 | case REPNE_PREFIX_OPCODE: | |
2616 | implied_prefix = 3; | |
2617 | break; | |
2618 | default: | |
2619 | abort (); | |
2620 | } | |
2621 | ||
2622 | /* Use 2-byte VEX prefix if possible. */ | |
2623 | if (i.tm.opcode_modifier.vex0f | |
2624 | && (i.rex & (REX_W | REX_X | REX_B)) == 0) | |
2625 | { | |
2626 | /* 2-byte VEX prefix. */ | |
2627 | unsigned int r; | |
2628 | ||
2629 | i.vex.length = 2; | |
2630 | i.vex.bytes[0] = 0xc5; | |
2631 | ||
2632 | /* Check the REX.R bit. */ | |
2633 | r = (i.rex & REX_R) ? 0 : 1; | |
2634 | i.vex.bytes[1] = (r << 7 | |
2635 | | register_specifier << 3 | |
2636 | | vector_length << 2 | |
2637 | | implied_prefix); | |
2638 | } | |
2639 | else | |
2640 | { | |
2641 | /* 3-byte VEX prefix. */ | |
2642 | unsigned int m, w; | |
2643 | ||
2644 | if (i.tm.opcode_modifier.vex0f) | |
2645 | m = 0x1; | |
2646 | else if (i.tm.opcode_modifier.vex0f38) | |
2647 | m = 0x2; | |
2648 | else if (i.tm.opcode_modifier.vex0f3a) | |
2649 | m = 0x3; | |
2650 | else | |
2651 | abort (); | |
2652 | ||
2653 | i.vex.length = 3; | |
2654 | i.vex.bytes[0] = 0xc4; | |
2655 | ||
2656 | /* The high 3 bits of the second VEX byte are 1's compliment | |
2657 | of RXB bits from REX. */ | |
2658 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m; | |
2659 | ||
2660 | /* Check the REX.W bit. */ | |
2661 | w = (i.rex & REX_W) ? 1 : 0; | |
2662 | if (i.tm.opcode_modifier.vexw0 || i.tm.opcode_modifier.vexw1) | |
2663 | { | |
2664 | if (w) | |
2665 | abort (); | |
2666 | ||
2667 | if (i.tm.opcode_modifier.vexw1) | |
2668 | w = 1; | |
2669 | } | |
2670 | ||
2671 | i.vex.bytes[2] = (w << 7 | |
2672 | | register_specifier << 3 | |
2673 | | vector_length << 2 | |
2674 | | implied_prefix); | |
2675 | } | |
2676 | } | |
2677 | ||
65da13b5 L |
2678 | static void |
2679 | process_immext (void) | |
2680 | { | |
2681 | expressionS *exp; | |
2682 | ||
2683 | if (i.tm.cpu_flags.bitfield.cpusse3 && i.operands > 0) | |
2684 | { | |
1fed0ba1 L |
2685 | /* SSE3 Instructions have the fixed operands with an opcode |
2686 | suffix which is coded in the same place as an 8-bit immediate | |
2687 | field would be. Here we check those operands and remove them | |
2688 | afterwards. */ | |
65da13b5 L |
2689 | unsigned int x; |
2690 | ||
2691 | for (x = 0; x < i.operands; x++) | |
2692 | if (i.op[x].regs->reg_num != x) | |
2693 | as_bad (_("can't use register '%s%s' as operand %d in '%s'."), | |
1fed0ba1 L |
2694 | register_prefix, i.op[x].regs->reg_name, x + 1, |
2695 | i.tm.name); | |
2696 | ||
2697 | i.operands = 0; | |
65da13b5 L |
2698 | } |
2699 | ||
c0f3af97 | 2700 | /* These AMD 3DNow! and SSE2 instructions have an opcode suffix |
65da13b5 L |
2701 | which is coded in the same place as an 8-bit immediate field |
2702 | would be. Here we fake an 8-bit immediate operand from the | |
2703 | opcode suffix stored in tm.extension_opcode. | |
2704 | ||
c0f3af97 L |
2705 | SSE5 and AVX instructions also use this encoding, for some of |
2706 | 3 argument instructions. */ | |
65da13b5 L |
2707 | |
2708 | assert (i.imm_operands == 0 | |
2709 | && (i.operands <= 2 | |
2710 | || (i.tm.cpu_flags.bitfield.cpusse5 | |
c0f3af97 L |
2711 | && i.operands <= 3) |
2712 | || (i.tm.opcode_modifier.vex | |
2713 | && i.operands <= 4))); | |
65da13b5 L |
2714 | |
2715 | exp = &im_expressions[i.imm_operands++]; | |
2716 | i.op[i.operands].imms = exp; | |
2717 | i.types[i.operands] = imm8; | |
2718 | i.operands++; | |
2719 | exp->X_op = O_constant; | |
2720 | exp->X_add_number = i.tm.extension_opcode; | |
2721 | i.tm.extension_opcode = None; | |
2722 | } | |
2723 | ||
252b5132 RH |
2724 | /* This is the guts of the machine-dependent assembler. LINE points to a |
2725 | machine dependent instruction. This function is supposed to emit | |
2726 | the frags/bytes it assembles to. */ | |
2727 | ||
2728 | void | |
65da13b5 | 2729 | md_assemble (char *line) |
252b5132 | 2730 | { |
40fb9820 | 2731 | unsigned int j; |
252b5132 | 2732 | char mnemonic[MAX_MNEM_SIZE]; |
fa99fab2 | 2733 | const template *t; |
252b5132 | 2734 | |
47926f60 | 2735 | /* Initialize globals. */ |
252b5132 RH |
2736 | memset (&i, '\0', sizeof (i)); |
2737 | for (j = 0; j < MAX_OPERANDS; j++) | |
1ae12ab7 | 2738 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
2739 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
2740 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 2741 | save_stack_p = save_stack; |
252b5132 RH |
2742 | |
2743 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
2744 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 2745 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 2746 | |
29b0f896 AM |
2747 | line = parse_insn (line, mnemonic); |
2748 | if (line == NULL) | |
2749 | return; | |
252b5132 | 2750 | |
29b0f896 AM |
2751 | line = parse_operands (line, mnemonic); |
2752 | if (line == NULL) | |
2753 | return; | |
252b5132 | 2754 | |
29b0f896 AM |
2755 | /* Now we've parsed the mnemonic into a set of templates, and have the |
2756 | operands at hand. */ | |
2757 | ||
2758 | /* All intel opcodes have reversed operands except for "bound" and | |
2759 | "enter". We also don't reverse intersegment "jmp" and "call" | |
2760 | instructions with 2 immediate operands so that the immediate segment | |
050dfa73 | 2761 | precedes the offset, as it does when in AT&T mode. */ |
4d456e3d L |
2762 | if (intel_syntax |
2763 | && i.operands > 1 | |
29b0f896 | 2764 | && (strcmp (mnemonic, "bound") != 0) |
30123838 | 2765 | && (strcmp (mnemonic, "invlpga") != 0) |
40fb9820 L |
2766 | && !(operand_type_check (i.types[0], imm) |
2767 | && operand_type_check (i.types[1], imm))) | |
29b0f896 AM |
2768 | swap_operands (); |
2769 | ||
ec56d5c0 JB |
2770 | /* The order of the immediates should be reversed |
2771 | for 2 immediates extrq and insertq instructions */ | |
2772 | if (i.imm_operands == 2 | |
2773 | && (strcmp (mnemonic, "extrq") == 0 | |
2774 | || strcmp (mnemonic, "insertq") == 0)) | |
2775 | swap_2_operands (0, 1); | |
2776 | ||
29b0f896 AM |
2777 | if (i.imm_operands) |
2778 | optimize_imm (); | |
2779 | ||
b300c311 L |
2780 | /* Don't optimize displacement for movabs since it only takes 64bit |
2781 | displacement. */ | |
2782 | if (i.disp_operands | |
2783 | && (flag_code != CODE_64BIT | |
2784 | || strcmp (mnemonic, "movabs") != 0)) | |
29b0f896 AM |
2785 | optimize_disp (); |
2786 | ||
2787 | /* Next, we find a template that matches the given insn, | |
2788 | making sure the overlap of the given operands types is consistent | |
2789 | with the template operand types. */ | |
252b5132 | 2790 | |
fa99fab2 | 2791 | if (!(t = match_template ())) |
29b0f896 | 2792 | return; |
252b5132 | 2793 | |
daf50ae7 | 2794 | if (sse_check != sse_check_none |
81f8a913 | 2795 | && !i.tm.opcode_modifier.noavx |
daf50ae7 L |
2796 | && (i.tm.cpu_flags.bitfield.cpusse |
2797 | || i.tm.cpu_flags.bitfield.cpusse2 | |
2798 | || i.tm.cpu_flags.bitfield.cpusse3 | |
2799 | || i.tm.cpu_flags.bitfield.cpussse3 | |
2800 | || i.tm.cpu_flags.bitfield.cpusse4_1 | |
2801 | || i.tm.cpu_flags.bitfield.cpusse4_2)) | |
2802 | { | |
2803 | (sse_check == sse_check_warning | |
2804 | ? as_warn | |
2805 | : as_bad) (_("SSE instruction `%s' is used"), i.tm.name); | |
2806 | } | |
2807 | ||
321fd21e L |
2808 | /* Zap movzx and movsx suffix. The suffix has been set from |
2809 | "word ptr" or "byte ptr" on the source operand in Intel syntax | |
2810 | or extracted from mnemonic in AT&T syntax. But we'll use | |
2811 | the destination register to choose the suffix for encoding. */ | |
2812 | if ((i.tm.base_opcode & ~9) == 0x0fb6) | |
cd61ebfe | 2813 | { |
321fd21e L |
2814 | /* In Intel syntax, there must be a suffix. In AT&T syntax, if |
2815 | there is no suffix, the default will be byte extension. */ | |
2816 | if (i.reg_operands != 2 | |
2817 | && !i.suffix | |
2818 | && intel_syntax) | |
2819 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); | |
2820 | ||
2821 | i.suffix = 0; | |
cd61ebfe | 2822 | } |
24eab124 | 2823 | |
40fb9820 | 2824 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
2825 | if (!add_prefix (FWAIT_OPCODE)) |
2826 | return; | |
252b5132 | 2827 | |
29b0f896 | 2828 | /* Check string instruction segment overrides. */ |
40fb9820 | 2829 | if (i.tm.opcode_modifier.isstring && i.mem_operands != 0) |
29b0f896 AM |
2830 | { |
2831 | if (!check_string ()) | |
5dd0794d | 2832 | return; |
fc0763e6 | 2833 | i.disp_operands = 0; |
29b0f896 | 2834 | } |
5dd0794d | 2835 | |
29b0f896 AM |
2836 | if (!process_suffix ()) |
2837 | return; | |
e413e4e9 | 2838 | |
29b0f896 AM |
2839 | /* Make still unresolved immediate matches conform to size of immediate |
2840 | given in i.suffix. */ | |
2841 | if (!finalize_imm ()) | |
2842 | return; | |
252b5132 | 2843 | |
40fb9820 | 2844 | if (i.types[0].bitfield.imm1) |
29b0f896 | 2845 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 2846 | |
40fb9820 | 2847 | for (j = 0; j < 3; j++) |
c6fb90c8 L |
2848 | if (i.types[j].bitfield.inoutportreg |
2849 | || i.types[j].bitfield.shiftcount | |
2850 | || i.types[j].bitfield.acc | |
2851 | || i.types[j].bitfield.floatacc) | |
40fb9820 L |
2852 | i.reg_operands--; |
2853 | ||
c0f3af97 L |
2854 | /* ImmExt should be processed after SSE2AVX. */ |
2855 | if (!i.tm.opcode_modifier.sse2avx | |
2856 | && i.tm.opcode_modifier.immext) | |
65da13b5 | 2857 | process_immext (); |
252b5132 | 2858 | |
29b0f896 AM |
2859 | /* For insns with operands there are more diddles to do to the opcode. */ |
2860 | if (i.operands) | |
2861 | { | |
2862 | if (!process_operands ()) | |
2863 | return; | |
2864 | } | |
40fb9820 | 2865 | else if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 AM |
2866 | { |
2867 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
2868 | as_warn (_("translating to `%sp'"), i.tm.name); | |
2869 | } | |
252b5132 | 2870 | |
c0f3af97 | 2871 | if (i.tm.opcode_modifier.vex) |
fa99fab2 | 2872 | build_vex_prefix (t); |
c0f3af97 | 2873 | |
29b0f896 AM |
2874 | /* Handle conversion of 'int $3' --> special int3 insn. */ |
2875 | if (i.tm.base_opcode == INT_OPCODE && i.op[0].imms->X_add_number == 3) | |
2876 | { | |
2877 | i.tm.base_opcode = INT3_OPCODE; | |
2878 | i.imm_operands = 0; | |
2879 | } | |
252b5132 | 2880 | |
40fb9820 L |
2881 | if ((i.tm.opcode_modifier.jump |
2882 | || i.tm.opcode_modifier.jumpbyte | |
2883 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 AM |
2884 | && i.op[0].disps->X_op == O_constant) |
2885 | { | |
2886 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
2887 | the absolute address given by the constant. Since ix86 jumps and | |
2888 | calls are pc relative, we need to generate a reloc. */ | |
2889 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
2890 | i.op[0].disps->X_op = O_symbol; | |
2891 | } | |
252b5132 | 2892 | |
40fb9820 | 2893 | if (i.tm.opcode_modifier.rex64) |
161a04f6 | 2894 | i.rex |= REX_W; |
252b5132 | 2895 | |
29b0f896 AM |
2896 | /* For 8 bit registers we need an empty rex prefix. Also if the |
2897 | instruction already has a prefix, we need to convert old | |
2898 | registers to new ones. */ | |
773f551c | 2899 | |
40fb9820 | 2900 | if ((i.types[0].bitfield.reg8 |
29b0f896 | 2901 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
40fb9820 | 2902 | || (i.types[1].bitfield.reg8 |
29b0f896 | 2903 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
40fb9820 L |
2904 | || ((i.types[0].bitfield.reg8 |
2905 | || i.types[1].bitfield.reg8) | |
29b0f896 AM |
2906 | && i.rex != 0)) |
2907 | { | |
2908 | int x; | |
726c5dcd | 2909 | |
29b0f896 AM |
2910 | i.rex |= REX_OPCODE; |
2911 | for (x = 0; x < 2; x++) | |
2912 | { | |
2913 | /* Look for 8 bit operand that uses old registers. */ | |
40fb9820 | 2914 | if (i.types[x].bitfield.reg8 |
29b0f896 | 2915 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 2916 | { |
29b0f896 AM |
2917 | /* In case it is "hi" register, give up. */ |
2918 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 2919 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 2920 | "instruction requiring REX prefix."), |
a540244d | 2921 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 2922 | |
29b0f896 AM |
2923 | /* Otherwise it is equivalent to the extended register. |
2924 | Since the encoding doesn't change this is merely | |
2925 | cosmetic cleanup for debug output. */ | |
2926 | ||
2927 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 2928 | } |
29b0f896 AM |
2929 | } |
2930 | } | |
773f551c | 2931 | |
85f10a01 MM |
2932 | /* If the instruction has the DREX attribute (aka SSE5), don't emit a |
2933 | REX prefix. */ | |
2934 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
2935 | { | |
2936 | i.drex.rex = i.rex; | |
2937 | i.rex = 0; | |
2938 | } | |
2939 | else if (i.rex != 0) | |
29b0f896 AM |
2940 | add_prefix (REX_OPCODE | i.rex); |
2941 | ||
2942 | /* We are ready to output the insn. */ | |
2943 | output_insn (); | |
2944 | } | |
2945 | ||
2946 | static char * | |
e3bb37b5 | 2947 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
2948 | { |
2949 | char *l = line; | |
2950 | char *token_start = l; | |
2951 | char *mnem_p; | |
5c6af06e JB |
2952 | int supported; |
2953 | const template *t; | |
b6169b20 | 2954 | char *dot_p = NULL; |
29b0f896 AM |
2955 | |
2956 | /* Non-zero if we found a prefix only acceptable with string insns. */ | |
2957 | const char *expecting_string_instruction = NULL; | |
45288df1 | 2958 | |
29b0f896 AM |
2959 | while (1) |
2960 | { | |
2961 | mnem_p = mnemonic; | |
2962 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
2963 | { | |
b6169b20 L |
2964 | if (*mnem_p == '.') |
2965 | dot_p = mnem_p; | |
29b0f896 AM |
2966 | mnem_p++; |
2967 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 2968 | { |
29b0f896 AM |
2969 | as_bad (_("no such instruction: `%s'"), token_start); |
2970 | return NULL; | |
2971 | } | |
2972 | l++; | |
2973 | } | |
2974 | if (!is_space_char (*l) | |
2975 | && *l != END_OF_INSN | |
e44823cf JB |
2976 | && (intel_syntax |
2977 | || (*l != PREFIX_SEPARATOR | |
2978 | && *l != ','))) | |
29b0f896 AM |
2979 | { |
2980 | as_bad (_("invalid character %s in mnemonic"), | |
2981 | output_invalid (*l)); | |
2982 | return NULL; | |
2983 | } | |
2984 | if (token_start == l) | |
2985 | { | |
e44823cf | 2986 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
2987 | as_bad (_("expecting prefix; got nothing")); |
2988 | else | |
2989 | as_bad (_("expecting mnemonic; got nothing")); | |
2990 | return NULL; | |
2991 | } | |
45288df1 | 2992 | |
29b0f896 AM |
2993 | /* Look up instruction (or prefix) via hash table. */ |
2994 | current_templates = hash_find (op_hash, mnemonic); | |
47926f60 | 2995 | |
29b0f896 AM |
2996 | if (*l != END_OF_INSN |
2997 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
2998 | && current_templates | |
40fb9820 | 2999 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 3000 | { |
c6fb90c8 | 3001 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
3002 | { |
3003 | as_bad ((flag_code != CODE_64BIT | |
3004 | ? _("`%s' is only supported in 64-bit mode") | |
3005 | : _("`%s' is not supported in 64-bit mode")), | |
3006 | current_templates->start->name); | |
3007 | return NULL; | |
3008 | } | |
29b0f896 AM |
3009 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
3010 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
40fb9820 L |
3011 | if ((current_templates->start->opcode_modifier.size16 |
3012 | || current_templates->start->opcode_modifier.size32) | |
29b0f896 | 3013 | && flag_code != CODE_64BIT |
40fb9820 | 3014 | && (current_templates->start->opcode_modifier.size32 |
29b0f896 AM |
3015 | ^ (flag_code == CODE_16BIT))) |
3016 | { | |
3017 | as_bad (_("redundant %s prefix"), | |
3018 | current_templates->start->name); | |
3019 | return NULL; | |
45288df1 | 3020 | } |
29b0f896 AM |
3021 | /* Add prefix, checking for repeated prefixes. */ |
3022 | switch (add_prefix (current_templates->start->base_opcode)) | |
3023 | { | |
3024 | case 0: | |
3025 | return NULL; | |
3026 | case 2: | |
3027 | expecting_string_instruction = current_templates->start->name; | |
3028 | break; | |
3029 | } | |
3030 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
3031 | token_start = ++l; | |
3032 | } | |
3033 | else | |
3034 | break; | |
3035 | } | |
45288df1 | 3036 | |
30a55f88 | 3037 | if (!current_templates) |
b6169b20 | 3038 | { |
30a55f88 L |
3039 | /* Check if we should swap operand in encoding. */ |
3040 | if (mnem_p - 2 == dot_p && dot_p[1] == 's') | |
3041 | i.swap_operand = 1; | |
3042 | else | |
3043 | goto check_suffix; | |
3044 | mnem_p = dot_p; | |
3045 | *dot_p = '\0'; | |
3046 | current_templates = hash_find (op_hash, mnemonic); | |
b6169b20 L |
3047 | } |
3048 | ||
29b0f896 AM |
3049 | if (!current_templates) |
3050 | { | |
b6169b20 | 3051 | check_suffix: |
29b0f896 AM |
3052 | /* See if we can get a match by trimming off a suffix. */ |
3053 | switch (mnem_p[-1]) | |
3054 | { | |
3055 | case WORD_MNEM_SUFFIX: | |
9306ca4a JB |
3056 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) |
3057 | i.suffix = SHORT_MNEM_SUFFIX; | |
3058 | else | |
29b0f896 AM |
3059 | case BYTE_MNEM_SUFFIX: |
3060 | case QWORD_MNEM_SUFFIX: | |
3061 | i.suffix = mnem_p[-1]; | |
3062 | mnem_p[-1] = '\0'; | |
3063 | current_templates = hash_find (op_hash, mnemonic); | |
3064 | break; | |
3065 | case SHORT_MNEM_SUFFIX: | |
3066 | case LONG_MNEM_SUFFIX: | |
3067 | if (!intel_syntax) | |
3068 | { | |
3069 | i.suffix = mnem_p[-1]; | |
3070 | mnem_p[-1] = '\0'; | |
3071 | current_templates = hash_find (op_hash, mnemonic); | |
3072 | } | |
3073 | break; | |
252b5132 | 3074 | |
29b0f896 AM |
3075 | /* Intel Syntax. */ |
3076 | case 'd': | |
3077 | if (intel_syntax) | |
3078 | { | |
9306ca4a | 3079 | if (intel_float_operand (mnemonic) == 1) |
29b0f896 AM |
3080 | i.suffix = SHORT_MNEM_SUFFIX; |
3081 | else | |
3082 | i.suffix = LONG_MNEM_SUFFIX; | |
3083 | mnem_p[-1] = '\0'; | |
3084 | current_templates = hash_find (op_hash, mnemonic); | |
3085 | } | |
3086 | break; | |
3087 | } | |
3088 | if (!current_templates) | |
3089 | { | |
3090 | as_bad (_("no such instruction: `%s'"), token_start); | |
3091 | return NULL; | |
3092 | } | |
3093 | } | |
252b5132 | 3094 | |
40fb9820 L |
3095 | if (current_templates->start->opcode_modifier.jump |
3096 | || current_templates->start->opcode_modifier.jumpbyte) | |
29b0f896 AM |
3097 | { |
3098 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
3099 | predict taken and predict not taken respectively. | |
3100 | I'm not sure that branch hints actually do anything on loop | |
3101 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
3102 | may work in the future and it doesn't hurt to accept them | |
3103 | now. */ | |
3104 | if (l[0] == ',' && l[1] == 'p') | |
3105 | { | |
3106 | if (l[2] == 't') | |
3107 | { | |
3108 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
3109 | return NULL; | |
3110 | l += 3; | |
3111 | } | |
3112 | else if (l[2] == 'n') | |
3113 | { | |
3114 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
3115 | return NULL; | |
3116 | l += 3; | |
3117 | } | |
3118 | } | |
3119 | } | |
3120 | /* Any other comma loses. */ | |
3121 | if (*l == ',') | |
3122 | { | |
3123 | as_bad (_("invalid character %s in mnemonic"), | |
3124 | output_invalid (*l)); | |
3125 | return NULL; | |
3126 | } | |
252b5132 | 3127 | |
29b0f896 | 3128 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
3129 | supported = 0; |
3130 | for (t = current_templates->start; t < current_templates->end; ++t) | |
3131 | { | |
c0f3af97 L |
3132 | supported |= cpu_flags_match (t); |
3133 | if (supported == CPU_FLAGS_PERFECT_MATCH) | |
3629bb00 | 3134 | goto skip; |
5c6af06e | 3135 | } |
3629bb00 | 3136 | |
c0f3af97 | 3137 | if (!(supported & CPU_FLAGS_64BIT_MATCH)) |
5c6af06e JB |
3138 | { |
3139 | as_bad (flag_code == CODE_64BIT | |
3140 | ? _("`%s' is not supported in 64-bit mode") | |
3141 | : _("`%s' is only supported in 64-bit mode"), | |
3142 | current_templates->start->name); | |
3143 | return NULL; | |
3144 | } | |
c0f3af97 | 3145 | if (supported != CPU_FLAGS_PERFECT_MATCH) |
29b0f896 | 3146 | { |
3629bb00 | 3147 | as_bad (_("`%s' is not supported on `%s%s'"), |
41aacd83 L |
3148 | current_templates->start->name, |
3149 | cpu_arch_name ? cpu_arch_name : default_arch, | |
3629bb00 L |
3150 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); |
3151 | return NULL; | |
29b0f896 | 3152 | } |
3629bb00 L |
3153 | |
3154 | skip: | |
3155 | if (!cpu_arch_flags.bitfield.cpui386 | |
40fb9820 | 3156 | && (flag_code != CODE_16BIT)) |
29b0f896 AM |
3157 | { |
3158 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
3159 | } | |
252b5132 | 3160 | |
29b0f896 | 3161 | /* Check for rep/repne without a string instruction. */ |
f41bbced | 3162 | if (expecting_string_instruction) |
29b0f896 | 3163 | { |
f41bbced JB |
3164 | static templates override; |
3165 | ||
3166 | for (t = current_templates->start; t < current_templates->end; ++t) | |
40fb9820 | 3167 | if (t->opcode_modifier.isstring) |
f41bbced JB |
3168 | break; |
3169 | if (t >= current_templates->end) | |
3170 | { | |
3171 | as_bad (_("expecting string instruction after `%s'"), | |
64e74474 | 3172 | expecting_string_instruction); |
f41bbced JB |
3173 | return NULL; |
3174 | } | |
3175 | for (override.start = t; t < current_templates->end; ++t) | |
40fb9820 | 3176 | if (!t->opcode_modifier.isstring) |
f41bbced JB |
3177 | break; |
3178 | override.end = t; | |
3179 | current_templates = &override; | |
29b0f896 | 3180 | } |
252b5132 | 3181 | |
29b0f896 AM |
3182 | return l; |
3183 | } | |
252b5132 | 3184 | |
29b0f896 | 3185 | static char * |
e3bb37b5 | 3186 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
3187 | { |
3188 | char *token_start; | |
3138f287 | 3189 | |
29b0f896 AM |
3190 | /* 1 if operand is pending after ','. */ |
3191 | unsigned int expecting_operand = 0; | |
252b5132 | 3192 | |
29b0f896 AM |
3193 | /* Non-zero if operand parens not balanced. */ |
3194 | unsigned int paren_not_balanced; | |
3195 | ||
3196 | while (*l != END_OF_INSN) | |
3197 | { | |
3198 | /* Skip optional white space before operand. */ | |
3199 | if (is_space_char (*l)) | |
3200 | ++l; | |
3201 | if (!is_operand_char (*l) && *l != END_OF_INSN) | |
3202 | { | |
3203 | as_bad (_("invalid character %s before operand %d"), | |
3204 | output_invalid (*l), | |
3205 | i.operands + 1); | |
3206 | return NULL; | |
3207 | } | |
3208 | token_start = l; /* after white space */ | |
3209 | paren_not_balanced = 0; | |
3210 | while (paren_not_balanced || *l != ',') | |
3211 | { | |
3212 | if (*l == END_OF_INSN) | |
3213 | { | |
3214 | if (paren_not_balanced) | |
3215 | { | |
3216 | if (!intel_syntax) | |
3217 | as_bad (_("unbalanced parenthesis in operand %d."), | |
3218 | i.operands + 1); | |
3219 | else | |
3220 | as_bad (_("unbalanced brackets in operand %d."), | |
3221 | i.operands + 1); | |
3222 | return NULL; | |
3223 | } | |
3224 | else | |
3225 | break; /* we are done */ | |
3226 | } | |
3227 | else if (!is_operand_char (*l) && !is_space_char (*l)) | |
3228 | { | |
3229 | as_bad (_("invalid character %s in operand %d"), | |
3230 | output_invalid (*l), | |
3231 | i.operands + 1); | |
3232 | return NULL; | |
3233 | } | |
3234 | if (!intel_syntax) | |
3235 | { | |
3236 | if (*l == '(') | |
3237 | ++paren_not_balanced; | |
3238 | if (*l == ')') | |
3239 | --paren_not_balanced; | |
3240 | } | |
3241 | else | |
3242 | { | |
3243 | if (*l == '[') | |
3244 | ++paren_not_balanced; | |
3245 | if (*l == ']') | |
3246 | --paren_not_balanced; | |
3247 | } | |
3248 | l++; | |
3249 | } | |
3250 | if (l != token_start) | |
3251 | { /* Yes, we've read in another operand. */ | |
3252 | unsigned int operand_ok; | |
3253 | this_operand = i.operands++; | |
7d5e4556 | 3254 | i.types[this_operand].bitfield.unspecified = 1; |
29b0f896 AM |
3255 | if (i.operands > MAX_OPERANDS) |
3256 | { | |
3257 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
3258 | MAX_OPERANDS); | |
3259 | return NULL; | |
3260 | } | |
3261 | /* Now parse operand adding info to 'i' as we go along. */ | |
3262 | END_STRING_AND_SAVE (l); | |
3263 | ||
3264 | if (intel_syntax) | |
3265 | operand_ok = | |
3266 | i386_intel_operand (token_start, | |
3267 | intel_float_operand (mnemonic)); | |
3268 | else | |
a7619375 | 3269 | operand_ok = i386_att_operand (token_start); |
29b0f896 AM |
3270 | |
3271 | RESTORE_END_STRING (l); | |
3272 | if (!operand_ok) | |
3273 | return NULL; | |
3274 | } | |
3275 | else | |
3276 | { | |
3277 | if (expecting_operand) | |
3278 | { | |
3279 | expecting_operand_after_comma: | |
3280 | as_bad (_("expecting operand after ','; got nothing")); | |
3281 | return NULL; | |
3282 | } | |
3283 | if (*l == ',') | |
3284 | { | |
3285 | as_bad (_("expecting operand before ','; got nothing")); | |
3286 | return NULL; | |
3287 | } | |
3288 | } | |
7f3f1ea2 | 3289 | |
29b0f896 AM |
3290 | /* Now *l must be either ',' or END_OF_INSN. */ |
3291 | if (*l == ',') | |
3292 | { | |
3293 | if (*++l == END_OF_INSN) | |
3294 | { | |
3295 | /* Just skip it, if it's \n complain. */ | |
3296 | goto expecting_operand_after_comma; | |
3297 | } | |
3298 | expecting_operand = 1; | |
3299 | } | |
3300 | } | |
3301 | return l; | |
3302 | } | |
7f3f1ea2 | 3303 | |
050dfa73 | 3304 | static void |
4d456e3d | 3305 | swap_2_operands (int xchg1, int xchg2) |
050dfa73 MM |
3306 | { |
3307 | union i386_op temp_op; | |
40fb9820 | 3308 | i386_operand_type temp_type; |
050dfa73 | 3309 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 3310 | |
050dfa73 MM |
3311 | temp_type = i.types[xchg2]; |
3312 | i.types[xchg2] = i.types[xchg1]; | |
3313 | i.types[xchg1] = temp_type; | |
3314 | temp_op = i.op[xchg2]; | |
3315 | i.op[xchg2] = i.op[xchg1]; | |
3316 | i.op[xchg1] = temp_op; | |
3317 | temp_reloc = i.reloc[xchg2]; | |
3318 | i.reloc[xchg2] = i.reloc[xchg1]; | |
3319 | i.reloc[xchg1] = temp_reloc; | |
3320 | } | |
3321 | ||
29b0f896 | 3322 | static void |
e3bb37b5 | 3323 | swap_operands (void) |
29b0f896 | 3324 | { |
b7c61d9a | 3325 | switch (i.operands) |
050dfa73 | 3326 | { |
c0f3af97 | 3327 | case 5: |
b7c61d9a | 3328 | case 4: |
4d456e3d | 3329 | swap_2_operands (1, i.operands - 2); |
b7c61d9a L |
3330 | case 3: |
3331 | case 2: | |
4d456e3d | 3332 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
3333 | break; |
3334 | default: | |
3335 | abort (); | |
29b0f896 | 3336 | } |
29b0f896 AM |
3337 | |
3338 | if (i.mem_operands == 2) | |
3339 | { | |
3340 | const seg_entry *temp_seg; | |
3341 | temp_seg = i.seg[0]; | |
3342 | i.seg[0] = i.seg[1]; | |
3343 | i.seg[1] = temp_seg; | |
3344 | } | |
3345 | } | |
252b5132 | 3346 | |
29b0f896 AM |
3347 | /* Try to ensure constant immediates are represented in the smallest |
3348 | opcode possible. */ | |
3349 | static void | |
e3bb37b5 | 3350 | optimize_imm (void) |
29b0f896 AM |
3351 | { |
3352 | char guess_suffix = 0; | |
3353 | int op; | |
252b5132 | 3354 | |
29b0f896 AM |
3355 | if (i.suffix) |
3356 | guess_suffix = i.suffix; | |
3357 | else if (i.reg_operands) | |
3358 | { | |
3359 | /* Figure out a suffix from the last register operand specified. | |
3360 | We can't do this properly yet, ie. excluding InOutPortReg, | |
3361 | but the following works for instructions with immediates. | |
3362 | In any case, we can't set i.suffix yet. */ | |
3363 | for (op = i.operands; --op >= 0;) | |
40fb9820 L |
3364 | if (i.types[op].bitfield.reg8) |
3365 | { | |
3366 | guess_suffix = BYTE_MNEM_SUFFIX; | |
3367 | break; | |
3368 | } | |
3369 | else if (i.types[op].bitfield.reg16) | |
252b5132 | 3370 | { |
40fb9820 L |
3371 | guess_suffix = WORD_MNEM_SUFFIX; |
3372 | break; | |
3373 | } | |
3374 | else if (i.types[op].bitfield.reg32) | |
3375 | { | |
3376 | guess_suffix = LONG_MNEM_SUFFIX; | |
3377 | break; | |
3378 | } | |
3379 | else if (i.types[op].bitfield.reg64) | |
3380 | { | |
3381 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 3382 | break; |
252b5132 | 3383 | } |
29b0f896 AM |
3384 | } |
3385 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
3386 | guess_suffix = WORD_MNEM_SUFFIX; | |
3387 | ||
3388 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 3389 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
3390 | { |
3391 | switch (i.op[op].imms->X_op) | |
252b5132 | 3392 | { |
29b0f896 AM |
3393 | case O_constant: |
3394 | /* If a suffix is given, this operand may be shortened. */ | |
3395 | switch (guess_suffix) | |
252b5132 | 3396 | { |
29b0f896 | 3397 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
3398 | i.types[op].bitfield.imm32 = 1; |
3399 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
3400 | break; |
3401 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
3402 | i.types[op].bitfield.imm16 = 1; |
3403 | i.types[op].bitfield.imm32 = 1; | |
3404 | i.types[op].bitfield.imm32s = 1; | |
3405 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
3406 | break; |
3407 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
3408 | i.types[op].bitfield.imm8 = 1; |
3409 | i.types[op].bitfield.imm8s = 1; | |
3410 | i.types[op].bitfield.imm16 = 1; | |
3411 | i.types[op].bitfield.imm32 = 1; | |
3412 | i.types[op].bitfield.imm32s = 1; | |
3413 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 3414 | break; |
252b5132 | 3415 | } |
252b5132 | 3416 | |
29b0f896 AM |
3417 | /* If this operand is at most 16 bits, convert it |
3418 | to a signed 16 bit number before trying to see | |
3419 | whether it will fit in an even smaller size. | |
3420 | This allows a 16-bit operand such as $0xffe0 to | |
3421 | be recognised as within Imm8S range. */ | |
40fb9820 | 3422 | if ((i.types[op].bitfield.imm16) |
29b0f896 | 3423 | && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0) |
252b5132 | 3424 | { |
29b0f896 AM |
3425 | i.op[op].imms->X_add_number = |
3426 | (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000); | |
3427 | } | |
40fb9820 | 3428 | if ((i.types[op].bitfield.imm32) |
29b0f896 AM |
3429 | && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1)) |
3430 | == 0)) | |
3431 | { | |
3432 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
3433 | ^ ((offsetT) 1 << 31)) | |
3434 | - ((offsetT) 1 << 31)); | |
3435 | } | |
40fb9820 | 3436 | i.types[op] |
c6fb90c8 L |
3437 | = operand_type_or (i.types[op], |
3438 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 3439 | |
29b0f896 AM |
3440 | /* We must avoid matching of Imm32 templates when 64bit |
3441 | only immediate is available. */ | |
3442 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 3443 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 3444 | break; |
252b5132 | 3445 | |
29b0f896 AM |
3446 | case O_absent: |
3447 | case O_register: | |
3448 | abort (); | |
3449 | ||
3450 | /* Symbols and expressions. */ | |
3451 | default: | |
9cd96992 JB |
3452 | /* Convert symbolic operand to proper sizes for matching, but don't |
3453 | prevent matching a set of insns that only supports sizes other | |
3454 | than those matching the insn suffix. */ | |
3455 | { | |
40fb9820 | 3456 | i386_operand_type mask, allowed; |
9cd96992 JB |
3457 | const template *t; |
3458 | ||
0dfbf9d7 L |
3459 | operand_type_set (&mask, 0); |
3460 | operand_type_set (&allowed, 0); | |
40fb9820 | 3461 | |
4eed87de AM |
3462 | for (t = current_templates->start; |
3463 | t < current_templates->end; | |
3464 | ++t) | |
c6fb90c8 L |
3465 | allowed = operand_type_or (allowed, |
3466 | t->operand_types[op]); | |
9cd96992 JB |
3467 | switch (guess_suffix) |
3468 | { | |
3469 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
3470 | mask.bitfield.imm64 = 1; |
3471 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
3472 | break; |
3473 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 3474 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
3475 | break; |
3476 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 3477 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
3478 | break; |
3479 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 3480 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
3481 | break; |
3482 | default: | |
9cd96992 JB |
3483 | break; |
3484 | } | |
c6fb90c8 | 3485 | allowed = operand_type_and (mask, allowed); |
0dfbf9d7 | 3486 | if (!operand_type_all_zero (&allowed)) |
c6fb90c8 | 3487 | i.types[op] = operand_type_and (i.types[op], mask); |
9cd96992 | 3488 | } |
29b0f896 | 3489 | break; |
252b5132 | 3490 | } |
29b0f896 AM |
3491 | } |
3492 | } | |
47926f60 | 3493 | |
29b0f896 AM |
3494 | /* Try to use the smallest displacement type too. */ |
3495 | static void | |
e3bb37b5 | 3496 | optimize_disp (void) |
29b0f896 AM |
3497 | { |
3498 | int op; | |
3e73aa7c | 3499 | |
29b0f896 | 3500 | for (op = i.operands; --op >= 0;) |
40fb9820 | 3501 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 3502 | { |
b300c311 | 3503 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 3504 | { |
b300c311 | 3505 | offsetT disp = i.op[op].disps->X_add_number; |
29b0f896 | 3506 | |
40fb9820 | 3507 | if (i.types[op].bitfield.disp16 |
b300c311 L |
3508 | && (disp & ~(offsetT) 0xffff) == 0) |
3509 | { | |
3510 | /* If this operand is at most 16 bits, convert | |
3511 | to a signed 16 bit number and don't use 64bit | |
3512 | displacement. */ | |
3513 | disp = (((disp & 0xffff) ^ 0x8000) - 0x8000); | |
40fb9820 | 3514 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 3515 | } |
40fb9820 | 3516 | if (i.types[op].bitfield.disp32 |
b300c311 L |
3517 | && (disp & ~(((offsetT) 2 << 31) - 1)) == 0) |
3518 | { | |
3519 | /* If this operand is at most 32 bits, convert | |
3520 | to a signed 32 bit number and don't use 64bit | |
3521 | displacement. */ | |
3522 | disp &= (((offsetT) 2 << 31) - 1); | |
3523 | disp = (disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
40fb9820 | 3524 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 3525 | } |
40fb9820 | 3526 | if (!disp && i.types[op].bitfield.baseindex) |
b300c311 | 3527 | { |
40fb9820 L |
3528 | i.types[op].bitfield.disp8 = 0; |
3529 | i.types[op].bitfield.disp16 = 0; | |
3530 | i.types[op].bitfield.disp32 = 0; | |
3531 | i.types[op].bitfield.disp32s = 0; | |
3532 | i.types[op].bitfield.disp64 = 0; | |
b300c311 L |
3533 | i.op[op].disps = 0; |
3534 | i.disp_operands--; | |
3535 | } | |
3536 | else if (flag_code == CODE_64BIT) | |
3537 | { | |
3538 | if (fits_in_signed_long (disp)) | |
28a9d8f5 | 3539 | { |
40fb9820 L |
3540 | i.types[op].bitfield.disp64 = 0; |
3541 | i.types[op].bitfield.disp32s = 1; | |
28a9d8f5 | 3542 | } |
b300c311 | 3543 | if (fits_in_unsigned_long (disp)) |
40fb9820 | 3544 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 3545 | } |
40fb9820 L |
3546 | if ((i.types[op].bitfield.disp32 |
3547 | || i.types[op].bitfield.disp32s | |
3548 | || i.types[op].bitfield.disp16) | |
b300c311 | 3549 | && fits_in_signed_byte (disp)) |
40fb9820 | 3550 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 3551 | } |
67a4f2b7 AO |
3552 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
3553 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
3554 | { | |
3555 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
3556 | i.op[op].disps, 0, i.reloc[op]); | |
40fb9820 L |
3557 | i.types[op].bitfield.disp8 = 0; |
3558 | i.types[op].bitfield.disp16 = 0; | |
3559 | i.types[op].bitfield.disp32 = 0; | |
3560 | i.types[op].bitfield.disp32s = 0; | |
3561 | i.types[op].bitfield.disp64 = 0; | |
67a4f2b7 AO |
3562 | } |
3563 | else | |
b300c311 | 3564 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 3565 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 3566 | } |
29b0f896 AM |
3567 | } |
3568 | ||
fa99fab2 | 3569 | static const template * |
e3bb37b5 | 3570 | match_template (void) |
29b0f896 AM |
3571 | { |
3572 | /* Points to template once we've found it. */ | |
3573 | const template *t; | |
40fb9820 | 3574 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
c0f3af97 | 3575 | i386_operand_type overlap4; |
29b0f896 | 3576 | unsigned int found_reverse_match; |
40fb9820 L |
3577 | i386_opcode_modifier suffix_check; |
3578 | i386_operand_type operand_types [MAX_OPERANDS]; | |
539e75ad | 3579 | int addr_prefix_disp; |
a5c311ca | 3580 | unsigned int j; |
3629bb00 | 3581 | unsigned int found_cpu_match; |
45664ddb | 3582 | unsigned int check_register; |
29b0f896 | 3583 | |
c0f3af97 L |
3584 | #if MAX_OPERANDS != 5 |
3585 | # error "MAX_OPERANDS must be 5." | |
f48ff2ae L |
3586 | #endif |
3587 | ||
29b0f896 | 3588 | found_reverse_match = 0; |
539e75ad | 3589 | addr_prefix_disp = -1; |
40fb9820 L |
3590 | |
3591 | memset (&suffix_check, 0, sizeof (suffix_check)); | |
3592 | if (i.suffix == BYTE_MNEM_SUFFIX) | |
3593 | suffix_check.no_bsuf = 1; | |
3594 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
3595 | suffix_check.no_wsuf = 1; | |
3596 | else if (i.suffix == SHORT_MNEM_SUFFIX) | |
3597 | suffix_check.no_ssuf = 1; | |
3598 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
3599 | suffix_check.no_lsuf = 1; | |
3600 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3601 | suffix_check.no_qsuf = 1; | |
3602 | else if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
7ce189b3 | 3603 | suffix_check.no_ldsuf = 1; |
29b0f896 | 3604 | |
45aa61fe | 3605 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 3606 | { |
539e75ad L |
3607 | addr_prefix_disp = -1; |
3608 | ||
29b0f896 AM |
3609 | /* Must have right number of operands. */ |
3610 | if (i.operands != t->operands) | |
3611 | continue; | |
3612 | ||
50aecf8c | 3613 | /* Check processor support. */ |
c0f3af97 L |
3614 | found_cpu_match = (cpu_flags_match (t) |
3615 | == CPU_FLAGS_PERFECT_MATCH); | |
50aecf8c L |
3616 | if (!found_cpu_match) |
3617 | continue; | |
3618 | ||
e1d4d893 L |
3619 | /* Check old gcc support. */ |
3620 | if (!old_gcc && t->opcode_modifier.oldgcc) | |
3621 | continue; | |
3622 | ||
3623 | /* Check AT&T mnemonic. */ | |
3624 | if (intel_mnemonic && t->opcode_modifier.attmnemonic) | |
1efbbeb4 L |
3625 | continue; |
3626 | ||
5c07affc L |
3627 | /* Check AT&T syntax Intel syntax. */ |
3628 | if ((intel_syntax && t->opcode_modifier.attsyntax) | |
3629 | || (!intel_syntax && t->opcode_modifier.intelsyntax)) | |
1efbbeb4 L |
3630 | continue; |
3631 | ||
20592a94 | 3632 | /* Check the suffix, except for some instructions in intel mode. */ |
567e4e96 L |
3633 | if ((!intel_syntax || !t->opcode_modifier.ignoresize) |
3634 | && ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf) | |
3635 | || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf) | |
3636 | || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf) | |
3637 | || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf) | |
3638 | || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf) | |
3639 | || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf))) | |
29b0f896 AM |
3640 | continue; |
3641 | ||
5c07affc | 3642 | if (!operand_size_match (t)) |
7d5e4556 | 3643 | continue; |
539e75ad | 3644 | |
5c07affc L |
3645 | for (j = 0; j < MAX_OPERANDS; j++) |
3646 | operand_types[j] = t->operand_types[j]; | |
3647 | ||
45aa61fe AM |
3648 | /* In general, don't allow 64-bit operands in 32-bit mode. */ |
3649 | if (i.suffix == QWORD_MNEM_SUFFIX | |
3650 | && flag_code != CODE_64BIT | |
3651 | && (intel_syntax | |
40fb9820 | 3652 | ? (!t->opcode_modifier.ignoresize |
45aa61fe AM |
3653 | && !intel_float_operand (t->name)) |
3654 | : intel_float_operand (t->name) != 2) | |
40fb9820 | 3655 | && ((!operand_types[0].bitfield.regmmx |
c0f3af97 L |
3656 | && !operand_types[0].bitfield.regxmm |
3657 | && !operand_types[0].bitfield.regymm) | |
40fb9820 | 3658 | || (!operand_types[t->operands > 1].bitfield.regmmx |
c0f3af97 L |
3659 | && !!operand_types[t->operands > 1].bitfield.regxmm |
3660 | && !!operand_types[t->operands > 1].bitfield.regymm)) | |
45aa61fe AM |
3661 | && (t->base_opcode != 0x0fc7 |
3662 | || t->extension_opcode != 1 /* cmpxchg8b */)) | |
3663 | continue; | |
3664 | ||
192dc9c6 JB |
3665 | /* In general, don't allow 32-bit operands on pre-386. */ |
3666 | else if (i.suffix == LONG_MNEM_SUFFIX | |
3667 | && !cpu_arch_flags.bitfield.cpui386 | |
3668 | && (intel_syntax | |
3669 | ? (!t->opcode_modifier.ignoresize | |
3670 | && !intel_float_operand (t->name)) | |
3671 | : intel_float_operand (t->name) != 2) | |
3672 | && ((!operand_types[0].bitfield.regmmx | |
3673 | && !operand_types[0].bitfield.regxmm) | |
3674 | || (!operand_types[t->operands > 1].bitfield.regmmx | |
3675 | && !!operand_types[t->operands > 1].bitfield.regxmm))) | |
3676 | continue; | |
3677 | ||
29b0f896 | 3678 | /* Do not verify operands when there are none. */ |
50aecf8c | 3679 | else |
29b0f896 | 3680 | { |
c6fb90c8 | 3681 | if (!t->operands) |
2dbab7d5 L |
3682 | /* We've found a match; break out of loop. */ |
3683 | break; | |
29b0f896 | 3684 | } |
252b5132 | 3685 | |
539e75ad L |
3686 | /* Address size prefix will turn Disp64/Disp32/Disp16 operand |
3687 | into Disp32/Disp16/Disp32 operand. */ | |
3688 | if (i.prefix[ADDR_PREFIX] != 0) | |
3689 | { | |
40fb9820 | 3690 | /* There should be only one Disp operand. */ |
539e75ad L |
3691 | switch (flag_code) |
3692 | { | |
3693 | case CODE_16BIT: | |
40fb9820 L |
3694 | for (j = 0; j < MAX_OPERANDS; j++) |
3695 | { | |
3696 | if (operand_types[j].bitfield.disp16) | |
3697 | { | |
3698 | addr_prefix_disp = j; | |
3699 | operand_types[j].bitfield.disp32 = 1; | |
3700 | operand_types[j].bitfield.disp16 = 0; | |
3701 | break; | |
3702 | } | |
3703 | } | |
539e75ad L |
3704 | break; |
3705 | case CODE_32BIT: | |
40fb9820 L |
3706 | for (j = 0; j < MAX_OPERANDS; j++) |
3707 | { | |
3708 | if (operand_types[j].bitfield.disp32) | |
3709 | { | |
3710 | addr_prefix_disp = j; | |
3711 | operand_types[j].bitfield.disp32 = 0; | |
3712 | operand_types[j].bitfield.disp16 = 1; | |
3713 | break; | |
3714 | } | |
3715 | } | |
539e75ad L |
3716 | break; |
3717 | case CODE_64BIT: | |
40fb9820 L |
3718 | for (j = 0; j < MAX_OPERANDS; j++) |
3719 | { | |
3720 | if (operand_types[j].bitfield.disp64) | |
3721 | { | |
3722 | addr_prefix_disp = j; | |
3723 | operand_types[j].bitfield.disp64 = 0; | |
3724 | operand_types[j].bitfield.disp32 = 1; | |
3725 | break; | |
3726 | } | |
3727 | } | |
539e75ad L |
3728 | break; |
3729 | } | |
539e75ad L |
3730 | } |
3731 | ||
45664ddb L |
3732 | /* We check register size only if size of operands can be |
3733 | encoded the canonical way. */ | |
3734 | check_register = t->opcode_modifier.w; | |
c6fb90c8 | 3735 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
3736 | switch (t->operands) |
3737 | { | |
3738 | case 1: | |
40fb9820 | 3739 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
3740 | continue; |
3741 | break; | |
3742 | case 2: | |
8b38ad71 L |
3743 | /* xchg %eax, %eax is a special case. It is an aliase for nop |
3744 | only in 32bit mode and we can use opcode 0x90. In 64bit | |
3745 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
3746 | zero-extend %eax to %rax. */ | |
3747 | if (flag_code == CODE_64BIT | |
3748 | && t->base_opcode == 0x90 | |
0dfbf9d7 L |
3749 | && operand_type_equal (&i.types [0], &acc32) |
3750 | && operand_type_equal (&i.types [1], &acc32)) | |
8b38ad71 | 3751 | continue; |
b6169b20 L |
3752 | if (i.swap_operand) |
3753 | { | |
3754 | /* If we swap operand in encoding, we either match | |
3755 | the next one or reverse direction of operands. */ | |
3756 | if (t->opcode_modifier.s) | |
3757 | continue; | |
3758 | else if (t->opcode_modifier.d) | |
3759 | goto check_reverse; | |
3760 | } | |
3761 | ||
29b0f896 | 3762 | case 3: |
fa99fab2 L |
3763 | /* If we swap operand in encoding, we match the next one. */ |
3764 | if (i.swap_operand && t->opcode_modifier.s) | |
3765 | continue; | |
f48ff2ae | 3766 | case 4: |
c0f3af97 | 3767 | case 5: |
c6fb90c8 | 3768 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
3769 | if (!operand_type_match (overlap0, i.types[0]) |
3770 | || !operand_type_match (overlap1, i.types[1]) | |
45664ddb L |
3771 | || (check_register |
3772 | && !operand_type_register_match (overlap0, i.types[0], | |
40fb9820 L |
3773 | operand_types[0], |
3774 | overlap1, i.types[1], | |
3775 | operand_types[1]))) | |
29b0f896 AM |
3776 | { |
3777 | /* Check if other direction is valid ... */ | |
40fb9820 | 3778 | if (!t->opcode_modifier.d && !t->opcode_modifier.floatd) |
29b0f896 AM |
3779 | continue; |
3780 | ||
b6169b20 | 3781 | check_reverse: |
29b0f896 | 3782 | /* Try reversing direction of operands. */ |
c6fb90c8 L |
3783 | overlap0 = operand_type_and (i.types[0], operand_types[1]); |
3784 | overlap1 = operand_type_and (i.types[1], operand_types[0]); | |
40fb9820 L |
3785 | if (!operand_type_match (overlap0, i.types[0]) |
3786 | || !operand_type_match (overlap1, i.types[1]) | |
45664ddb L |
3787 | || (check_register |
3788 | && !operand_type_register_match (overlap0, | |
3789 | i.types[0], | |
3790 | operand_types[1], | |
3791 | overlap1, | |
3792 | i.types[1], | |
3793 | operand_types[0]))) | |
29b0f896 AM |
3794 | { |
3795 | /* Does not match either direction. */ | |
3796 | continue; | |
3797 | } | |
3798 | /* found_reverse_match holds which of D or FloatDR | |
3799 | we've found. */ | |
40fb9820 | 3800 | if (t->opcode_modifier.d) |
8a2ed489 | 3801 | found_reverse_match = Opcode_D; |
40fb9820 | 3802 | else if (t->opcode_modifier.floatd) |
8a2ed489 L |
3803 | found_reverse_match = Opcode_FloatD; |
3804 | else | |
3805 | found_reverse_match = 0; | |
40fb9820 | 3806 | if (t->opcode_modifier.floatr) |
8a2ed489 | 3807 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 3808 | } |
f48ff2ae | 3809 | else |
29b0f896 | 3810 | { |
f48ff2ae | 3811 | /* Found a forward 2 operand match here. */ |
d1cbb4db L |
3812 | switch (t->operands) |
3813 | { | |
c0f3af97 L |
3814 | case 5: |
3815 | overlap4 = operand_type_and (i.types[4], | |
3816 | operand_types[4]); | |
d1cbb4db | 3817 | case 4: |
c6fb90c8 L |
3818 | overlap3 = operand_type_and (i.types[3], |
3819 | operand_types[3]); | |
d1cbb4db | 3820 | case 3: |
c6fb90c8 L |
3821 | overlap2 = operand_type_and (i.types[2], |
3822 | operand_types[2]); | |
d1cbb4db L |
3823 | break; |
3824 | } | |
29b0f896 | 3825 | |
f48ff2ae L |
3826 | switch (t->operands) |
3827 | { | |
c0f3af97 L |
3828 | case 5: |
3829 | if (!operand_type_match (overlap4, i.types[4]) | |
3830 | || !operand_type_register_match (overlap3, | |
3831 | i.types[3], | |
3832 | operand_types[3], | |
3833 | overlap4, | |
3834 | i.types[4], | |
3835 | operand_types[4])) | |
3836 | continue; | |
f48ff2ae | 3837 | case 4: |
40fb9820 | 3838 | if (!operand_type_match (overlap3, i.types[3]) |
45664ddb L |
3839 | || (check_register |
3840 | && !operand_type_register_match (overlap2, | |
3841 | i.types[2], | |
3842 | operand_types[2], | |
3843 | overlap3, | |
3844 | i.types[3], | |
3845 | operand_types[3]))) | |
f48ff2ae L |
3846 | continue; |
3847 | case 3: | |
3848 | /* Here we make use of the fact that there are no | |
3849 | reverse match 3 operand instructions, and all 3 | |
3850 | operand instructions only need to be checked for | |
3851 | register consistency between operands 2 and 3. */ | |
40fb9820 | 3852 | if (!operand_type_match (overlap2, i.types[2]) |
45664ddb L |
3853 | || (check_register |
3854 | && !operand_type_register_match (overlap1, | |
3855 | i.types[1], | |
3856 | operand_types[1], | |
3857 | overlap2, | |
3858 | i.types[2], | |
3859 | operand_types[2]))) | |
f48ff2ae L |
3860 | continue; |
3861 | break; | |
3862 | } | |
29b0f896 | 3863 | } |
f48ff2ae | 3864 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
3865 | slip through to break. */ |
3866 | } | |
3629bb00 | 3867 | if (!found_cpu_match) |
29b0f896 AM |
3868 | { |
3869 | found_reverse_match = 0; | |
3870 | continue; | |
3871 | } | |
c0f3af97 | 3872 | |
29b0f896 AM |
3873 | /* We've found a match; break out of loop. */ |
3874 | break; | |
3875 | } | |
3876 | ||
3877 | if (t == current_templates->end) | |
3878 | { | |
3879 | /* We found no match. */ | |
95f283e8 L |
3880 | if (intel_syntax) |
3881 | as_bad (_("ambiguous operand size or operands invalid for `%s'"), | |
3882 | current_templates->start->name); | |
3883 | else | |
3884 | as_bad (_("suffix or operands invalid for `%s'"), | |
3885 | current_templates->start->name); | |
fa99fab2 | 3886 | return NULL; |
29b0f896 | 3887 | } |
252b5132 | 3888 | |
29b0f896 AM |
3889 | if (!quiet_warnings) |
3890 | { | |
3891 | if (!intel_syntax | |
40fb9820 L |
3892 | && (i.types[0].bitfield.jumpabsolute |
3893 | != operand_types[0].bitfield.jumpabsolute)) | |
29b0f896 AM |
3894 | { |
3895 | as_warn (_("indirect %s without `*'"), t->name); | |
3896 | } | |
3897 | ||
40fb9820 L |
3898 | if (t->opcode_modifier.isprefix |
3899 | && t->opcode_modifier.ignoresize) | |
29b0f896 AM |
3900 | { |
3901 | /* Warn them that a data or address size prefix doesn't | |
3902 | affect assembly of the next line of code. */ | |
3903 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
3904 | } | |
3905 | } | |
3906 | ||
3907 | /* Copy the template we found. */ | |
3908 | i.tm = *t; | |
539e75ad L |
3909 | |
3910 | if (addr_prefix_disp != -1) | |
3911 | i.tm.operand_types[addr_prefix_disp] | |
3912 | = operand_types[addr_prefix_disp]; | |
3913 | ||
29b0f896 AM |
3914 | if (found_reverse_match) |
3915 | { | |
3916 | /* If we found a reverse match we must alter the opcode | |
3917 | direction bit. found_reverse_match holds bits to change | |
3918 | (different for int & float insns). */ | |
3919 | ||
3920 | i.tm.base_opcode ^= found_reverse_match; | |
3921 | ||
539e75ad L |
3922 | i.tm.operand_types[0] = operand_types[1]; |
3923 | i.tm.operand_types[1] = operand_types[0]; | |
29b0f896 AM |
3924 | } |
3925 | ||
fa99fab2 | 3926 | return t; |
29b0f896 AM |
3927 | } |
3928 | ||
3929 | static int | |
e3bb37b5 | 3930 | check_string (void) |
29b0f896 | 3931 | { |
40fb9820 L |
3932 | int mem_op = operand_type_check (i.types[0], anymem) ? 0 : 1; |
3933 | if (i.tm.operand_types[mem_op].bitfield.esseg) | |
29b0f896 AM |
3934 | { |
3935 | if (i.seg[0] != NULL && i.seg[0] != &es) | |
3936 | { | |
a87af027 | 3937 | as_bad (_("`%s' operand %d must use `%ses' segment"), |
29b0f896 | 3938 | i.tm.name, |
a87af027 JB |
3939 | mem_op + 1, |
3940 | register_prefix); | |
29b0f896 AM |
3941 | return 0; |
3942 | } | |
3943 | /* There's only ever one segment override allowed per instruction. | |
3944 | This instruction possibly has a legal segment override on the | |
3945 | second operand, so copy the segment to where non-string | |
3946 | instructions store it, allowing common code. */ | |
3947 | i.seg[0] = i.seg[1]; | |
3948 | } | |
40fb9820 | 3949 | else if (i.tm.operand_types[mem_op + 1].bitfield.esseg) |
29b0f896 AM |
3950 | { |
3951 | if (i.seg[1] != NULL && i.seg[1] != &es) | |
3952 | { | |
a87af027 | 3953 | as_bad (_("`%s' operand %d must use `%ses' segment"), |
29b0f896 | 3954 | i.tm.name, |
a87af027 JB |
3955 | mem_op + 2, |
3956 | register_prefix); | |
29b0f896 AM |
3957 | return 0; |
3958 | } | |
3959 | } | |
3960 | return 1; | |
3961 | } | |
3962 | ||
3963 | static int | |
543613e9 | 3964 | process_suffix (void) |
29b0f896 AM |
3965 | { |
3966 | /* If matched instruction specifies an explicit instruction mnemonic | |
3967 | suffix, use it. */ | |
40fb9820 L |
3968 | if (i.tm.opcode_modifier.size16) |
3969 | i.suffix = WORD_MNEM_SUFFIX; | |
3970 | else if (i.tm.opcode_modifier.size32) | |
3971 | i.suffix = LONG_MNEM_SUFFIX; | |
3972 | else if (i.tm.opcode_modifier.size64) | |
3973 | i.suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 AM |
3974 | else if (i.reg_operands) |
3975 | { | |
3976 | /* If there's no instruction mnemonic suffix we try to invent one | |
3977 | based on register operands. */ | |
3978 | if (!i.suffix) | |
3979 | { | |
3980 | /* We take i.suffix from the last register operand specified, | |
3981 | Destination register type is more significant than source | |
381d071f L |
3982 | register type. crc32 in SSE4.2 prefers source register |
3983 | type. */ | |
3984 | if (i.tm.base_opcode == 0xf20f38f1) | |
3985 | { | |
40fb9820 L |
3986 | if (i.types[0].bitfield.reg16) |
3987 | i.suffix = WORD_MNEM_SUFFIX; | |
3988 | else if (i.types[0].bitfield.reg32) | |
3989 | i.suffix = LONG_MNEM_SUFFIX; | |
3990 | else if (i.types[0].bitfield.reg64) | |
3991 | i.suffix = QWORD_MNEM_SUFFIX; | |
381d071f | 3992 | } |
9344ff29 | 3993 | else if (i.tm.base_opcode == 0xf20f38f0) |
20592a94 | 3994 | { |
40fb9820 | 3995 | if (i.types[0].bitfield.reg8) |
20592a94 L |
3996 | i.suffix = BYTE_MNEM_SUFFIX; |
3997 | } | |
381d071f L |
3998 | |
3999 | if (!i.suffix) | |
4000 | { | |
4001 | int op; | |
4002 | ||
20592a94 L |
4003 | if (i.tm.base_opcode == 0xf20f38f1 |
4004 | || i.tm.base_opcode == 0xf20f38f0) | |
4005 | { | |
4006 | /* We have to know the operand size for crc32. */ | |
4007 | as_bad (_("ambiguous memory operand size for `%s`"), | |
4008 | i.tm.name); | |
4009 | return 0; | |
4010 | } | |
4011 | ||
381d071f | 4012 | for (op = i.operands; --op >= 0;) |
40fb9820 | 4013 | if (!i.tm.operand_types[op].bitfield.inoutportreg) |
381d071f | 4014 | { |
40fb9820 L |
4015 | if (i.types[op].bitfield.reg8) |
4016 | { | |
4017 | i.suffix = BYTE_MNEM_SUFFIX; | |
4018 | break; | |
4019 | } | |
4020 | else if (i.types[op].bitfield.reg16) | |
4021 | { | |
4022 | i.suffix = WORD_MNEM_SUFFIX; | |
4023 | break; | |
4024 | } | |
4025 | else if (i.types[op].bitfield.reg32) | |
4026 | { | |
4027 | i.suffix = LONG_MNEM_SUFFIX; | |
4028 | break; | |
4029 | } | |
4030 | else if (i.types[op].bitfield.reg64) | |
4031 | { | |
4032 | i.suffix = QWORD_MNEM_SUFFIX; | |
4033 | break; | |
4034 | } | |
381d071f L |
4035 | } |
4036 | } | |
29b0f896 AM |
4037 | } |
4038 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
4039 | { | |
4040 | if (!check_byte_reg ()) | |
4041 | return 0; | |
4042 | } | |
4043 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
4044 | { | |
4045 | if (!check_long_reg ()) | |
4046 | return 0; | |
4047 | } | |
4048 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
4049 | { | |
955e1e6a L |
4050 | if (intel_syntax |
4051 | && i.tm.opcode_modifier.ignoresize | |
4052 | && i.tm.opcode_modifier.no_qsuf) | |
4053 | i.suffix = 0; | |
4054 | else if (!check_qword_reg ()) | |
29b0f896 AM |
4055 | return 0; |
4056 | } | |
4057 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
4058 | { | |
4059 | if (!check_word_reg ()) | |
4060 | return 0; | |
4061 | } | |
c0f3af97 L |
4062 | else if (i.suffix == XMMWORD_MNEM_SUFFIX |
4063 | || i.suffix == YMMWORD_MNEM_SUFFIX) | |
582d5edd | 4064 | { |
c0f3af97 | 4065 | /* Skip if the instruction has x/y suffix. match_template |
582d5edd L |
4066 | should check if it is a valid suffix. */ |
4067 | } | |
40fb9820 | 4068 | else if (intel_syntax && i.tm.opcode_modifier.ignoresize) |
29b0f896 AM |
4069 | /* Do nothing if the instruction is going to ignore the prefix. */ |
4070 | ; | |
4071 | else | |
4072 | abort (); | |
4073 | } | |
40fb9820 | 4074 | else if (i.tm.opcode_modifier.defaultsize |
9306ca4a JB |
4075 | && !i.suffix |
4076 | /* exclude fldenv/frstor/fsave/fstenv */ | |
40fb9820 | 4077 | && i.tm.opcode_modifier.no_ssuf) |
29b0f896 AM |
4078 | { |
4079 | i.suffix = stackop_size; | |
4080 | } | |
9306ca4a JB |
4081 | else if (intel_syntax |
4082 | && !i.suffix | |
40fb9820 L |
4083 | && (i.tm.operand_types[0].bitfield.jumpabsolute |
4084 | || i.tm.opcode_modifier.jumpbyte | |
4085 | || i.tm.opcode_modifier.jumpintersegment | |
64e74474 AM |
4086 | || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */ |
4087 | && i.tm.extension_opcode <= 3))) | |
9306ca4a JB |
4088 | { |
4089 | switch (flag_code) | |
4090 | { | |
4091 | case CODE_64BIT: | |
40fb9820 | 4092 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a JB |
4093 | { |
4094 | i.suffix = QWORD_MNEM_SUFFIX; | |
4095 | break; | |
4096 | } | |
4097 | case CODE_32BIT: | |
40fb9820 | 4098 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
4099 | i.suffix = LONG_MNEM_SUFFIX; |
4100 | break; | |
4101 | case CODE_16BIT: | |
40fb9820 | 4102 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
4103 | i.suffix = WORD_MNEM_SUFFIX; |
4104 | break; | |
4105 | } | |
4106 | } | |
252b5132 | 4107 | |
9306ca4a | 4108 | if (!i.suffix) |
29b0f896 | 4109 | { |
9306ca4a JB |
4110 | if (!intel_syntax) |
4111 | { | |
40fb9820 | 4112 | if (i.tm.opcode_modifier.w) |
9306ca4a | 4113 | { |
4eed87de AM |
4114 | as_bad (_("no instruction mnemonic suffix given and " |
4115 | "no register operands; can't size instruction")); | |
9306ca4a JB |
4116 | return 0; |
4117 | } | |
4118 | } | |
4119 | else | |
4120 | { | |
40fb9820 L |
4121 | unsigned int suffixes; |
4122 | ||
4123 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
4124 | if (!i.tm.opcode_modifier.no_wsuf) | |
4125 | suffixes |= 1 << 1; | |
4126 | if (!i.tm.opcode_modifier.no_lsuf) | |
4127 | suffixes |= 1 << 2; | |
fc4adea1 | 4128 | if (!i.tm.opcode_modifier.no_ldsuf) |
40fb9820 L |
4129 | suffixes |= 1 << 3; |
4130 | if (!i.tm.opcode_modifier.no_ssuf) | |
4131 | suffixes |= 1 << 4; | |
4132 | if (!i.tm.opcode_modifier.no_qsuf) | |
4133 | suffixes |= 1 << 5; | |
4134 | ||
4135 | /* There are more than suffix matches. */ | |
4136 | if (i.tm.opcode_modifier.w | |
9306ca4a | 4137 | || ((suffixes & (suffixes - 1)) |
40fb9820 L |
4138 | && !i.tm.opcode_modifier.defaultsize |
4139 | && !i.tm.opcode_modifier.ignoresize)) | |
9306ca4a JB |
4140 | { |
4141 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); | |
4142 | return 0; | |
4143 | } | |
4144 | } | |
29b0f896 | 4145 | } |
252b5132 | 4146 | |
9306ca4a JB |
4147 | /* Change the opcode based on the operand size given by i.suffix; |
4148 | We don't need to change things for byte insns. */ | |
4149 | ||
582d5edd L |
4150 | if (i.suffix |
4151 | && i.suffix != BYTE_MNEM_SUFFIX | |
c0f3af97 L |
4152 | && i.suffix != XMMWORD_MNEM_SUFFIX |
4153 | && i.suffix != YMMWORD_MNEM_SUFFIX) | |
29b0f896 AM |
4154 | { |
4155 | /* It's not a byte, select word/dword operation. */ | |
40fb9820 | 4156 | if (i.tm.opcode_modifier.w) |
29b0f896 | 4157 | { |
40fb9820 | 4158 | if (i.tm.opcode_modifier.shortform) |
29b0f896 AM |
4159 | i.tm.base_opcode |= 8; |
4160 | else | |
4161 | i.tm.base_opcode |= 1; | |
4162 | } | |
0f3f3d8b | 4163 | |
29b0f896 AM |
4164 | /* Now select between word & dword operations via the operand |
4165 | size prefix, except for instructions that will ignore this | |
4166 | prefix anyway. */ | |
ca61edf2 | 4167 | if (i.tm.opcode_modifier.addrprefixop0) |
cb712a9e | 4168 | { |
ca61edf2 L |
4169 | /* The address size override prefix changes the size of the |
4170 | first operand. */ | |
40fb9820 L |
4171 | if ((flag_code == CODE_32BIT |
4172 | && i.op->regs[0].reg_type.bitfield.reg16) | |
4173 | || (flag_code != CODE_32BIT | |
4174 | && i.op->regs[0].reg_type.bitfield.reg32)) | |
cb712a9e L |
4175 | if (!add_prefix (ADDR_PREFIX_OPCODE)) |
4176 | return 0; | |
4177 | } | |
4178 | else if (i.suffix != QWORD_MNEM_SUFFIX | |
4179 | && i.suffix != LONG_DOUBLE_MNEM_SUFFIX | |
40fb9820 L |
4180 | && !i.tm.opcode_modifier.ignoresize |
4181 | && !i.tm.opcode_modifier.floatmf | |
cb712a9e L |
4182 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) |
4183 | || (flag_code == CODE_64BIT | |
40fb9820 | 4184 | && i.tm.opcode_modifier.jumpbyte))) |
24eab124 AM |
4185 | { |
4186 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 4187 | |
40fb9820 | 4188 | if (i.tm.opcode_modifier.jumpbyte) /* jcxz, loop */ |
29b0f896 | 4189 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 4190 | |
29b0f896 AM |
4191 | if (!add_prefix (prefix)) |
4192 | return 0; | |
24eab124 | 4193 | } |
252b5132 | 4194 | |
29b0f896 AM |
4195 | /* Set mode64 for an operand. */ |
4196 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 4197 | && flag_code == CODE_64BIT |
40fb9820 | 4198 | && !i.tm.opcode_modifier.norex64) |
46e883c5 L |
4199 | { |
4200 | /* Special case for xchg %rax,%rax. It is NOP and doesn't | |
d9a5e5e5 L |
4201 | need rex64. cmpxchg8b is also a special case. */ |
4202 | if (! (i.operands == 2 | |
4203 | && i.tm.base_opcode == 0x90 | |
4204 | && i.tm.extension_opcode == None | |
0dfbf9d7 L |
4205 | && operand_type_equal (&i.types [0], &acc64) |
4206 | && operand_type_equal (&i.types [1], &acc64)) | |
d9a5e5e5 L |
4207 | && ! (i.operands == 1 |
4208 | && i.tm.base_opcode == 0xfc7 | |
4209 | && i.tm.extension_opcode == 1 | |
40fb9820 L |
4210 | && !operand_type_check (i.types [0], reg) |
4211 | && operand_type_check (i.types [0], anymem))) | |
f6bee062 | 4212 | i.rex |= REX_W; |
46e883c5 | 4213 | } |
3e73aa7c | 4214 | |
29b0f896 AM |
4215 | /* Size floating point instruction. */ |
4216 | if (i.suffix == LONG_MNEM_SUFFIX) | |
40fb9820 | 4217 | if (i.tm.opcode_modifier.floatmf) |
543613e9 | 4218 | i.tm.base_opcode ^= 4; |
29b0f896 | 4219 | } |
7ecd2f8b | 4220 | |
29b0f896 AM |
4221 | return 1; |
4222 | } | |
3e73aa7c | 4223 | |
29b0f896 | 4224 | static int |
543613e9 | 4225 | check_byte_reg (void) |
29b0f896 AM |
4226 | { |
4227 | int op; | |
543613e9 | 4228 | |
29b0f896 AM |
4229 | for (op = i.operands; --op >= 0;) |
4230 | { | |
4231 | /* If this is an eight bit register, it's OK. If it's the 16 or | |
4232 | 32 bit version of an eight bit register, we will just use the | |
4233 | low portion, and that's OK too. */ | |
40fb9820 | 4234 | if (i.types[op].bitfield.reg8) |
29b0f896 AM |
4235 | continue; |
4236 | ||
ca61edf2 L |
4237 | /* Don't generate this warning if not needed. */ |
4238 | if (intel_syntax && i.tm.opcode_modifier.byteokintel) | |
29b0f896 AM |
4239 | continue; |
4240 | ||
9344ff29 L |
4241 | /* crc32 doesn't generate this warning. */ |
4242 | if (i.tm.base_opcode == 0xf20f38f0) | |
4243 | continue; | |
4244 | ||
40fb9820 L |
4245 | if ((i.types[op].bitfield.reg16 |
4246 | || i.types[op].bitfield.reg32 | |
4247 | || i.types[op].bitfield.reg64) | |
4248 | && i.op[op].regs->reg_num < 4) | |
29b0f896 AM |
4249 | { |
4250 | /* Prohibit these changes in the 64bit mode, since the | |
4251 | lowering is more complicated. */ | |
4252 | if (flag_code == CODE_64BIT | |
40fb9820 | 4253 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
29b0f896 | 4254 | { |
2ca3ace5 L |
4255 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4256 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4257 | i.suffix); |
4258 | return 0; | |
4259 | } | |
4260 | #if REGISTER_WARNINGS | |
4261 | if (!quiet_warnings | |
40fb9820 | 4262 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
a540244d L |
4263 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4264 | register_prefix, | |
40fb9820 | 4265 | (i.op[op].regs + (i.types[op].bitfield.reg16 |
29b0f896 AM |
4266 | ? REGNAM_AL - REGNAM_AX |
4267 | : REGNAM_AL - REGNAM_EAX))->reg_name, | |
a540244d | 4268 | register_prefix, |
29b0f896 AM |
4269 | i.op[op].regs->reg_name, |
4270 | i.suffix); | |
4271 | #endif | |
4272 | continue; | |
4273 | } | |
4274 | /* Any other register is bad. */ | |
40fb9820 L |
4275 | if (i.types[op].bitfield.reg16 |
4276 | || i.types[op].bitfield.reg32 | |
4277 | || i.types[op].bitfield.reg64 | |
4278 | || i.types[op].bitfield.regmmx | |
4279 | || i.types[op].bitfield.regxmm | |
c0f3af97 | 4280 | || i.types[op].bitfield.regymm |
40fb9820 L |
4281 | || i.types[op].bitfield.sreg2 |
4282 | || i.types[op].bitfield.sreg3 | |
4283 | || i.types[op].bitfield.control | |
4284 | || i.types[op].bitfield.debug | |
4285 | || i.types[op].bitfield.test | |
4286 | || i.types[op].bitfield.floatreg | |
4287 | || i.types[op].bitfield.floatacc) | |
29b0f896 | 4288 | { |
a540244d L |
4289 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4290 | register_prefix, | |
29b0f896 AM |
4291 | i.op[op].regs->reg_name, |
4292 | i.tm.name, | |
4293 | i.suffix); | |
4294 | return 0; | |
4295 | } | |
4296 | } | |
4297 | return 1; | |
4298 | } | |
4299 | ||
4300 | static int | |
e3bb37b5 | 4301 | check_long_reg (void) |
29b0f896 AM |
4302 | { |
4303 | int op; | |
4304 | ||
4305 | for (op = i.operands; --op >= 0;) | |
4306 | /* Reject eight bit registers, except where the template requires | |
4307 | them. (eg. movzb) */ | |
40fb9820 L |
4308 | if (i.types[op].bitfield.reg8 |
4309 | && (i.tm.operand_types[op].bitfield.reg16 | |
4310 | || i.tm.operand_types[op].bitfield.reg32 | |
4311 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4312 | { |
a540244d L |
4313 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4314 | register_prefix, | |
29b0f896 AM |
4315 | i.op[op].regs->reg_name, |
4316 | i.tm.name, | |
4317 | i.suffix); | |
4318 | return 0; | |
4319 | } | |
4320 | /* Warn if the e prefix on a general reg is missing. */ | |
4321 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
4322 | && i.types[op].bitfield.reg16 |
4323 | && (i.tm.operand_types[op].bitfield.reg32 | |
4324 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
4325 | { |
4326 | /* Prohibit these changes in the 64bit mode, since the | |
4327 | lowering is more complicated. */ | |
4328 | if (flag_code == CODE_64BIT) | |
252b5132 | 4329 | { |
2ca3ace5 L |
4330 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4331 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4332 | i.suffix); |
4333 | return 0; | |
252b5132 | 4334 | } |
29b0f896 AM |
4335 | #if REGISTER_WARNINGS |
4336 | else | |
a540244d L |
4337 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4338 | register_prefix, | |
29b0f896 | 4339 | (i.op[op].regs + REGNAM_EAX - REGNAM_AX)->reg_name, |
a540244d | 4340 | register_prefix, |
29b0f896 AM |
4341 | i.op[op].regs->reg_name, |
4342 | i.suffix); | |
4343 | #endif | |
252b5132 | 4344 | } |
29b0f896 | 4345 | /* Warn if the r prefix on a general reg is missing. */ |
40fb9820 L |
4346 | else if (i.types[op].bitfield.reg64 |
4347 | && (i.tm.operand_types[op].bitfield.reg32 | |
4348 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 4349 | { |
34828aad | 4350 | if (intel_syntax |
ca61edf2 | 4351 | && i.tm.opcode_modifier.toqword |
40fb9820 | 4352 | && !i.types[0].bitfield.regxmm) |
34828aad | 4353 | { |
ca61edf2 | 4354 | /* Convert to QWORD. We want REX byte. */ |
34828aad L |
4355 | i.suffix = QWORD_MNEM_SUFFIX; |
4356 | } | |
4357 | else | |
4358 | { | |
4359 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
4360 | register_prefix, i.op[op].regs->reg_name, | |
4361 | i.suffix); | |
4362 | return 0; | |
4363 | } | |
29b0f896 AM |
4364 | } |
4365 | return 1; | |
4366 | } | |
252b5132 | 4367 | |
29b0f896 | 4368 | static int |
e3bb37b5 | 4369 | check_qword_reg (void) |
29b0f896 AM |
4370 | { |
4371 | int op; | |
252b5132 | 4372 | |
29b0f896 AM |
4373 | for (op = i.operands; --op >= 0; ) |
4374 | /* Reject eight bit registers, except where the template requires | |
4375 | them. (eg. movzb) */ | |
40fb9820 L |
4376 | if (i.types[op].bitfield.reg8 |
4377 | && (i.tm.operand_types[op].bitfield.reg16 | |
4378 | || i.tm.operand_types[op].bitfield.reg32 | |
4379 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4380 | { |
a540244d L |
4381 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4382 | register_prefix, | |
29b0f896 AM |
4383 | i.op[op].regs->reg_name, |
4384 | i.tm.name, | |
4385 | i.suffix); | |
4386 | return 0; | |
4387 | } | |
4388 | /* Warn if the e prefix on a general reg is missing. */ | |
40fb9820 L |
4389 | else if ((i.types[op].bitfield.reg16 |
4390 | || i.types[op].bitfield.reg32) | |
4391 | && (i.tm.operand_types[op].bitfield.reg32 | |
4392 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
4393 | { |
4394 | /* Prohibit these changes in the 64bit mode, since the | |
4395 | lowering is more complicated. */ | |
34828aad | 4396 | if (intel_syntax |
ca61edf2 | 4397 | && i.tm.opcode_modifier.todword |
40fb9820 | 4398 | && !i.types[0].bitfield.regxmm) |
34828aad | 4399 | { |
ca61edf2 | 4400 | /* Convert to DWORD. We don't want REX byte. */ |
34828aad L |
4401 | i.suffix = LONG_MNEM_SUFFIX; |
4402 | } | |
4403 | else | |
4404 | { | |
4405 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
4406 | register_prefix, i.op[op].regs->reg_name, | |
4407 | i.suffix); | |
4408 | return 0; | |
4409 | } | |
252b5132 | 4410 | } |
29b0f896 AM |
4411 | return 1; |
4412 | } | |
252b5132 | 4413 | |
29b0f896 | 4414 | static int |
e3bb37b5 | 4415 | check_word_reg (void) |
29b0f896 AM |
4416 | { |
4417 | int op; | |
4418 | for (op = i.operands; --op >= 0;) | |
4419 | /* Reject eight bit registers, except where the template requires | |
4420 | them. (eg. movzb) */ | |
40fb9820 L |
4421 | if (i.types[op].bitfield.reg8 |
4422 | && (i.tm.operand_types[op].bitfield.reg16 | |
4423 | || i.tm.operand_types[op].bitfield.reg32 | |
4424 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4425 | { |
a540244d L |
4426 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4427 | register_prefix, | |
29b0f896 AM |
4428 | i.op[op].regs->reg_name, |
4429 | i.tm.name, | |
4430 | i.suffix); | |
4431 | return 0; | |
4432 | } | |
4433 | /* Warn if the e prefix on a general reg is present. */ | |
4434 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
4435 | && i.types[op].bitfield.reg32 |
4436 | && (i.tm.operand_types[op].bitfield.reg16 | |
4437 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 4438 | { |
29b0f896 AM |
4439 | /* Prohibit these changes in the 64bit mode, since the |
4440 | lowering is more complicated. */ | |
4441 | if (flag_code == CODE_64BIT) | |
252b5132 | 4442 | { |
2ca3ace5 L |
4443 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4444 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4445 | i.suffix); |
4446 | return 0; | |
252b5132 | 4447 | } |
29b0f896 AM |
4448 | else |
4449 | #if REGISTER_WARNINGS | |
a540244d L |
4450 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4451 | register_prefix, | |
29b0f896 | 4452 | (i.op[op].regs + REGNAM_AX - REGNAM_EAX)->reg_name, |
a540244d | 4453 | register_prefix, |
29b0f896 AM |
4454 | i.op[op].regs->reg_name, |
4455 | i.suffix); | |
4456 | #endif | |
4457 | } | |
4458 | return 1; | |
4459 | } | |
252b5132 | 4460 | |
29b0f896 | 4461 | static int |
40fb9820 | 4462 | update_imm (unsigned int j) |
29b0f896 | 4463 | { |
40fb9820 L |
4464 | i386_operand_type overlap; |
4465 | ||
c6fb90c8 | 4466 | overlap = operand_type_and (i.types[j], i.tm.operand_types[j]); |
40fb9820 L |
4467 | if ((overlap.bitfield.imm8 |
4468 | || overlap.bitfield.imm8s | |
4469 | || overlap.bitfield.imm16 | |
4470 | || overlap.bitfield.imm32 | |
4471 | || overlap.bitfield.imm32s | |
4472 | || overlap.bitfield.imm64) | |
0dfbf9d7 L |
4473 | && !operand_type_equal (&overlap, &imm8) |
4474 | && !operand_type_equal (&overlap, &imm8s) | |
4475 | && !operand_type_equal (&overlap, &imm16) | |
4476 | && !operand_type_equal (&overlap, &imm32) | |
4477 | && !operand_type_equal (&overlap, &imm32s) | |
4478 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 AM |
4479 | { |
4480 | if (i.suffix) | |
4481 | { | |
40fb9820 L |
4482 | i386_operand_type temp; |
4483 | ||
0dfbf9d7 | 4484 | operand_type_set (&temp, 0); |
40fb9820 L |
4485 | if (i.suffix == BYTE_MNEM_SUFFIX) |
4486 | { | |
4487 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
4488 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
4489 | } | |
4490 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
4491 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
4492 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
4493 | { | |
4494 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
4495 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
4496 | } | |
4497 | else | |
4498 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
4499 | overlap = temp; | |
29b0f896 | 4500 | } |
0dfbf9d7 L |
4501 | else if (operand_type_equal (&overlap, &imm16_32_32s) |
4502 | || operand_type_equal (&overlap, &imm16_32) | |
4503 | || operand_type_equal (&overlap, &imm16_32s)) | |
29b0f896 | 4504 | { |
40fb9820 | 4505 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
65da13b5 | 4506 | overlap = imm16; |
40fb9820 | 4507 | else |
65da13b5 | 4508 | overlap = imm32s; |
29b0f896 | 4509 | } |
0dfbf9d7 L |
4510 | if (!operand_type_equal (&overlap, &imm8) |
4511 | && !operand_type_equal (&overlap, &imm8s) | |
4512 | && !operand_type_equal (&overlap, &imm16) | |
4513 | && !operand_type_equal (&overlap, &imm32) | |
4514 | && !operand_type_equal (&overlap, &imm32s) | |
4515 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 | 4516 | { |
4eed87de AM |
4517 | as_bad (_("no instruction mnemonic suffix given; " |
4518 | "can't determine immediate size")); | |
29b0f896 AM |
4519 | return 0; |
4520 | } | |
4521 | } | |
40fb9820 | 4522 | i.types[j] = overlap; |
29b0f896 | 4523 | |
40fb9820 L |
4524 | return 1; |
4525 | } | |
4526 | ||
4527 | static int | |
4528 | finalize_imm (void) | |
4529 | { | |
4530 | unsigned int j; | |
29b0f896 | 4531 | |
40fb9820 L |
4532 | for (j = 0; j < 2; j++) |
4533 | if (update_imm (j) == 0) | |
4534 | return 0; | |
4535 | ||
c6fb90c8 | 4536 | i.types[2] = operand_type_and (i.types[2], i.tm.operand_types[2]); |
40fb9820 | 4537 | assert (operand_type_check (i.types[2], imm) == 0); |
29b0f896 AM |
4538 | |
4539 | return 1; | |
4540 | } | |
4541 | ||
85f10a01 MM |
4542 | static void |
4543 | process_drex (void) | |
4544 | { | |
5dd15031 JJ |
4545 | i.drex.modrm_reg = 0; |
4546 | i.drex.modrm_regmem = 0; | |
85f10a01 MM |
4547 | |
4548 | /* SSE5 4 operand instructions must have the destination the same as | |
4549 | one of the inputs. Figure out the destination register and cache | |
4550 | it away in the drex field, and remember which fields to use for | |
4551 | the modrm byte. */ | |
4552 | if (i.tm.opcode_modifier.drex | |
4553 | && i.tm.opcode_modifier.drexv | |
4554 | && i.operands == 4) | |
4555 | { | |
4556 | i.tm.extension_opcode = None; | |
4557 | ||
4558 | /* Case 1: 4 operand insn, dest = src1, src3 = register. */ | |
4559 | if (i.types[0].bitfield.regxmm != 0 | |
4560 | && i.types[1].bitfield.regxmm != 0 | |
4561 | && i.types[2].bitfield.regxmm != 0 | |
4562 | && i.types[3].bitfield.regxmm != 0 | |
4563 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4564 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4565 | { | |
4566 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4567 | operand_type_set (&i.types[0], 0); |
4568 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4569 | i.reg_operands -= 2; |
4570 | ||
4571 | /* There are two different ways to encode a 4 operand | |
4572 | instruction with all registers that uses OC1 set to | |
4573 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
4574 | actions of other SSE5 assemblers. Use modrm encoding 2 | |
4575 | for register/register. Include the high order bit that | |
4576 | is normally stored in the REX byte in the register | |
4577 | field. */ | |
4578 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
4579 | i.drex.modrm_reg = 2; | |
4580 | i.drex.modrm_regmem = 1; | |
4581 | i.drex.reg = (i.op[3].regs->reg_num | |
4582 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4583 | } | |
4584 | ||
4585 | /* Case 2: 4 operand insn, dest = src1, src3 = memory. */ | |
4586 | else if (i.types[0].bitfield.regxmm != 0 | |
4587 | && i.types[1].bitfield.regxmm != 0 | |
4588 | && (i.types[2].bitfield.regxmm | |
4589 | || operand_type_check (i.types[2], anymem)) | |
4590 | && i.types[3].bitfield.regxmm != 0 | |
4591 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4592 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4593 | { | |
4594 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4595 | operand_type_set (&i.types[0], 0); |
4596 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4597 | i.reg_operands -= 2; |
4598 | ||
4599 | /* Specify the modrm encoding for memory addressing. Include | |
4600 | the high order bit that is normally stored in the REX byte | |
4601 | in the register field. */ | |
4602 | i.tm.extension_opcode = DREX_X1_X2_XMEM_X1; | |
4603 | i.drex.modrm_reg = 1; | |
4604 | i.drex.modrm_regmem = 2; | |
4605 | i.drex.reg = (i.op[3].regs->reg_num | |
4606 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4607 | } | |
4608 | ||
4609 | /* Case 3: 4 operand insn, dest = src1, src2 = memory. */ | |
4610 | else if (i.types[0].bitfield.regxmm != 0 | |
4611 | && operand_type_check (i.types[1], anymem) != 0 | |
4612 | && i.types[2].bitfield.regxmm != 0 | |
4613 | && i.types[3].bitfield.regxmm != 0 | |
4614 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4615 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4616 | { | |
4617 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4618 | operand_type_set (&i.types[0], 0); |
4619 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4620 | i.reg_operands -= 2; |
4621 | ||
4622 | /* Specify the modrm encoding for memory addressing. Include | |
4623 | the high order bit that is normally stored in the REX byte | |
4624 | in the register field. */ | |
4625 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
4626 | i.drex.modrm_reg = 2; | |
4627 | i.drex.modrm_regmem = 1; | |
4628 | i.drex.reg = (i.op[3].regs->reg_num | |
4629 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4630 | } | |
4631 | ||
4632 | /* Case 4: 4 operand insn, dest = src3, src2 = register. */ | |
4633 | else if (i.types[0].bitfield.regxmm != 0 | |
4634 | && i.types[1].bitfield.regxmm != 0 | |
4635 | && i.types[2].bitfield.regxmm != 0 | |
4636 | && i.types[3].bitfield.regxmm != 0 | |
4637 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4638 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4639 | { | |
4640 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4641 | operand_type_set (&i.types[2], 0); |
4642 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4643 | i.reg_operands -= 2; |
4644 | ||
4645 | /* There are two different ways to encode a 4 operand | |
4646 | instruction with all registers that uses OC1 set to | |
4647 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
4648 | actions of other SSE5 assemblers. Use modrm encoding | |
4649 | 2 for register/register. Include the high order bit that | |
4650 | is normally stored in the REX byte in the register | |
4651 | field. */ | |
4652 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4653 | i.drex.modrm_reg = 1; | |
4654 | i.drex.modrm_regmem = 0; | |
4655 | ||
4656 | /* Remember the register, including the upper bits */ | |
4657 | i.drex.reg = (i.op[3].regs->reg_num | |
4658 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4659 | } | |
4660 | ||
4661 | /* Case 5: 4 operand insn, dest = src3, src2 = memory. */ | |
4662 | else if (i.types[0].bitfield.regxmm != 0 | |
4663 | && (i.types[1].bitfield.regxmm | |
4664 | || operand_type_check (i.types[1], anymem)) | |
4665 | && i.types[2].bitfield.regxmm != 0 | |
4666 | && i.types[3].bitfield.regxmm != 0 | |
4667 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4668 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4669 | { | |
4670 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4671 | operand_type_set (&i.types[2], 0); |
4672 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4673 | i.reg_operands -= 2; |
4674 | ||
4675 | /* Specify the modrm encoding and remember the register | |
4676 | including the bits normally stored in the REX byte. */ | |
4677 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X2; | |
4678 | i.drex.modrm_reg = 0; | |
4679 | i.drex.modrm_regmem = 1; | |
4680 | i.drex.reg = (i.op[3].regs->reg_num | |
4681 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4682 | } | |
4683 | ||
4684 | /* Case 6: 4 operand insn, dest = src3, src1 = memory. */ | |
4685 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4686 | && i.types[1].bitfield.regxmm != 0 | |
4687 | && i.types[2].bitfield.regxmm != 0 | |
4688 | && i.types[3].bitfield.regxmm != 0 | |
4689 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4690 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4691 | { | |
4692 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4693 | operand_type_set (&i.types[2], 0); |
4694 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4695 | i.reg_operands -= 2; |
4696 | ||
4697 | /* Specify the modrm encoding and remember the register | |
4698 | including the bits normally stored in the REX byte. */ | |
4699 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4700 | i.drex.modrm_reg = 1; | |
4701 | i.drex.modrm_regmem = 0; | |
4702 | i.drex.reg = (i.op[3].regs->reg_num | |
4703 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4704 | } | |
4705 | ||
4706 | else | |
4707 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4708 | i.tm.name); | |
4709 | } | |
4710 | ||
4711 | /* SSE5 instructions with the DREX byte where the only memory operand | |
4712 | is in the 2nd argument, and the first and last xmm register must | |
4713 | match, and is encoded in the DREX byte. */ | |
4714 | else if (i.tm.opcode_modifier.drex | |
4715 | && !i.tm.opcode_modifier.drexv | |
4716 | && i.operands == 4) | |
4717 | { | |
4718 | /* Case 1: 4 operand insn, dest = src1, src3 = reg/mem. */ | |
4719 | if (i.types[0].bitfield.regxmm != 0 | |
4720 | && (i.types[1].bitfield.regxmm | |
4721 | || operand_type_check(i.types[1], anymem)) | |
4722 | && i.types[2].bitfield.regxmm != 0 | |
4723 | && i.types[3].bitfield.regxmm != 0 | |
4724 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4725 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4726 | { | |
4727 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4728 | operand_type_set (&i.types[0], 0); |
4729 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4730 | i.reg_operands -= 2; |
4731 | ||
4732 | /* Specify the modrm encoding and remember the register | |
4733 | including the high bit normally stored in the REX | |
4734 | byte. */ | |
4735 | i.drex.modrm_reg = 2; | |
4736 | i.drex.modrm_regmem = 1; | |
4737 | i.drex.reg = (i.op[3].regs->reg_num | |
4738 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4739 | } | |
4740 | ||
4741 | else | |
4742 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4743 | i.tm.name); | |
4744 | } | |
4745 | ||
4746 | /* SSE5 3 operand instructions that the result is a register, being | |
4747 | either operand can be a memory operand, using OC0 to note which | |
4748 | one is the memory. */ | |
4749 | else if (i.tm.opcode_modifier.drex | |
4750 | && i.tm.opcode_modifier.drexv | |
4751 | && i.operands == 3) | |
4752 | { | |
4753 | i.tm.extension_opcode = None; | |
4754 | ||
4755 | /* Case 1: 3 operand insn, src1 = register. */ | |
4756 | if (i.types[0].bitfield.regxmm != 0 | |
4757 | && i.types[1].bitfield.regxmm != 0 | |
4758 | && i.types[2].bitfield.regxmm != 0) | |
4759 | { | |
4760 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4761 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4762 | i.reg_operands--; |
4763 | ||
4764 | /* Specify the modrm encoding and remember the register | |
4765 | including the high bit normally stored in the REX byte. */ | |
4766 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4767 | i.drex.modrm_reg = 1; | |
4768 | i.drex.modrm_regmem = 0; | |
4769 | i.drex.reg = (i.op[2].regs->reg_num | |
4770 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4771 | } | |
4772 | ||
4773 | /* Case 2: 3 operand insn, src1 = memory. */ | |
4774 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4775 | && i.types[1].bitfield.regxmm != 0 | |
4776 | && i.types[2].bitfield.regxmm != 0) | |
4777 | { | |
4778 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4779 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4780 | i.reg_operands--; |
4781 | ||
4782 | /* Specify the modrm encoding and remember the register | |
4783 | including the high bit normally stored in the REX | |
4784 | byte. */ | |
4785 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4786 | i.drex.modrm_reg = 1; | |
4787 | i.drex.modrm_regmem = 0; | |
4788 | i.drex.reg = (i.op[2].regs->reg_num | |
4789 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4790 | } | |
4791 | ||
4792 | /* Case 3: 3 operand insn, src2 = memory. */ | |
4793 | else if (i.types[0].bitfield.regxmm != 0 | |
4794 | && operand_type_check (i.types[1], anymem) != 0 | |
4795 | && i.types[2].bitfield.regxmm != 0) | |
4796 | { | |
4797 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4798 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4799 | i.reg_operands--; |
4800 | ||
4801 | /* Specify the modrm encoding and remember the register | |
4802 | including the high bit normally stored in the REX byte. */ | |
4803 | i.tm.extension_opcode = DREX_X1_XMEM_X2; | |
4804 | i.drex.modrm_reg = 0; | |
4805 | i.drex.modrm_regmem = 1; | |
4806 | i.drex.reg = (i.op[2].regs->reg_num | |
4807 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4808 | } | |
4809 | ||
4810 | else | |
4811 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4812 | i.tm.name); | |
4813 | } | |
4814 | ||
4815 | /* SSE5 4 operand instructions that are the comparison instructions | |
4816 | where the first operand is the immediate value of the comparison | |
4817 | to be done. */ | |
4818 | else if (i.tm.opcode_modifier.drexc != 0 && i.operands == 4) | |
4819 | { | |
4820 | /* Case 1: 4 operand insn, src1 = reg/memory. */ | |
4821 | if (operand_type_check (i.types[0], imm) != 0 | |
4822 | && (i.types[1].bitfield.regxmm | |
4823 | || operand_type_check (i.types[1], anymem)) | |
4824 | && i.types[2].bitfield.regxmm != 0 | |
4825 | && i.types[3].bitfield.regxmm != 0) | |
4826 | { | |
4827 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 | 4828 | operand_type_set (&i.types[3], 0); |
85f10a01 MM |
4829 | i.reg_operands--; |
4830 | ||
4831 | /* Specify the modrm encoding and remember the register | |
4832 | including the high bit normally stored in the REX byte. */ | |
4833 | i.drex.modrm_reg = 2; | |
4834 | i.drex.modrm_regmem = 1; | |
4835 | i.drex.reg = (i.op[3].regs->reg_num | |
4836 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4837 | } | |
4838 | ||
4839 | /* Case 2: 3 operand insn with ImmExt that places the | |
4840 | opcode_extension as an immediate argument. This is used for | |
4841 | all of the varients of comparison that supplies the appropriate | |
4842 | value as part of the instruction. */ | |
4843 | else if ((i.types[0].bitfield.regxmm | |
4844 | || operand_type_check (i.types[0], anymem)) | |
4845 | && i.types[1].bitfield.regxmm != 0 | |
4846 | && i.types[2].bitfield.regxmm != 0 | |
4847 | && operand_type_check (i.types[3], imm) != 0) | |
4848 | { | |
4849 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 | 4850 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4851 | i.reg_operands--; |
4852 | ||
4853 | /* Specify the modrm encoding and remember the register | |
4854 | including the high bit normally stored in the REX byte. */ | |
4855 | i.drex.modrm_reg = 1; | |
4856 | i.drex.modrm_regmem = 0; | |
4857 | i.drex.reg = (i.op[2].regs->reg_num | |
4858 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4859 | } | |
4860 | ||
4861 | else | |
4862 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4863 | i.tm.name); | |
4864 | } | |
4865 | ||
4866 | else if (i.tm.opcode_modifier.drex | |
4867 | || i.tm.opcode_modifier.drexv | |
4868 | || i.tm.opcode_modifier.drexc) | |
4869 | as_bad (_("Internal error for the '%s' instruction"), i.tm.name); | |
4870 | } | |
4871 | ||
c0f3af97 L |
4872 | static int |
4873 | bad_implicit_operand (int xmm) | |
4874 | { | |
4875 | const char *reg = xmm ? "xmm0" : "ymm0"; | |
4876 | if (intel_syntax) | |
4877 | as_bad (_("the last operand of `%s' must be `%s%s'"), | |
4878 | i.tm.name, register_prefix, reg); | |
4879 | else | |
4880 | as_bad (_("the first operand of `%s' must be `%s%s'"), | |
4881 | i.tm.name, register_prefix, reg); | |
4882 | return 0; | |
4883 | } | |
4884 | ||
29b0f896 | 4885 | static int |
e3bb37b5 | 4886 | process_operands (void) |
29b0f896 AM |
4887 | { |
4888 | /* Default segment register this instruction will use for memory | |
4889 | accesses. 0 means unknown. This is only for optimizing out | |
4890 | unnecessary segment overrides. */ | |
4891 | const seg_entry *default_seg = 0; | |
4892 | ||
85f10a01 MM |
4893 | /* Handle all of the DREX munging that SSE5 needs. */ |
4894 | if (i.tm.opcode_modifier.drex | |
4895 | || i.tm.opcode_modifier.drexv | |
4896 | || i.tm.opcode_modifier.drexc) | |
4897 | process_drex (); | |
4898 | ||
c0f3af97 L |
4899 | if (i.tm.opcode_modifier.sse2avx |
4900 | && (i.tm.opcode_modifier.vexnds | |
4901 | || i.tm.opcode_modifier.vexndd)) | |
29b0f896 | 4902 | { |
c0f3af97 L |
4903 | unsigned int dup = i.operands; |
4904 | unsigned int dest = dup - 1; | |
9fcfb3d7 L |
4905 | unsigned int j; |
4906 | ||
c0f3af97 | 4907 | /* The destination must be an xmm register. */ |
0dfbf9d7 | 4908 | assert (i.reg_operands |
c0f3af97 L |
4909 | && MAX_OPERANDS > dup |
4910 | && operand_type_equal (&i.types[dest], ®xmm)); | |
4911 | ||
4912 | if (i.tm.opcode_modifier.firstxmm0) | |
e2ec9d29 | 4913 | { |
c0f3af97 L |
4914 | /* The first operand is implicit and must be xmm0. */ |
4915 | assert (operand_type_equal (&i.types[0], ®xmm)); | |
4916 | if (i.op[0].regs->reg_num != 0) | |
4917 | return bad_implicit_operand (1); | |
4918 | ||
4919 | if (i.tm.opcode_modifier.vex3sources) | |
4920 | { | |
4921 | /* Keep xmm0 for instructions with VEX prefix and 3 | |
4922 | sources. */ | |
4923 | goto duplicate; | |
4924 | } | |
e2ec9d29 | 4925 | else |
c0f3af97 L |
4926 | { |
4927 | /* We remove the first xmm0 and keep the number of | |
4928 | operands unchanged, which in fact duplicates the | |
4929 | destination. */ | |
4930 | for (j = 1; j < i.operands; j++) | |
4931 | { | |
4932 | i.op[j - 1] = i.op[j]; | |
4933 | i.types[j - 1] = i.types[j]; | |
4934 | i.tm.operand_types[j - 1] = i.tm.operand_types[j]; | |
4935 | } | |
4936 | } | |
4937 | } | |
4938 | else if (i.tm.opcode_modifier.implicit1stxmm0) | |
4939 | { | |
4940 | assert ((MAX_OPERANDS - 1) > dup | |
4941 | && i.tm.opcode_modifier.vex3sources); | |
4942 | ||
4943 | /* Add the implicit xmm0 for instructions with VEX prefix | |
4944 | and 3 sources. */ | |
4945 | for (j = i.operands; j > 0; j--) | |
4946 | { | |
4947 | i.op[j] = i.op[j - 1]; | |
4948 | i.types[j] = i.types[j - 1]; | |
4949 | i.tm.operand_types[j] = i.tm.operand_types[j - 1]; | |
4950 | } | |
4951 | i.op[0].regs | |
4952 | = (const reg_entry *) hash_find (reg_hash, "xmm0"); | |
4953 | i.types[0] = regxmm; | |
4954 | i.tm.operand_types[0] = regxmm; | |
4955 | ||
4956 | i.operands += 2; | |
4957 | i.reg_operands += 2; | |
4958 | i.tm.operands += 2; | |
4959 | ||
4960 | dup++; | |
4961 | dest++; | |
4962 | i.op[dup] = i.op[dest]; | |
4963 | i.types[dup] = i.types[dest]; | |
4964 | i.tm.operand_types[dup] = i.tm.operand_types[dest]; | |
e2ec9d29 | 4965 | } |
c0f3af97 L |
4966 | else |
4967 | { | |
4968 | duplicate: | |
4969 | i.operands++; | |
4970 | i.reg_operands++; | |
4971 | i.tm.operands++; | |
4972 | ||
4973 | i.op[dup] = i.op[dest]; | |
4974 | i.types[dup] = i.types[dest]; | |
4975 | i.tm.operand_types[dup] = i.tm.operand_types[dest]; | |
4976 | } | |
4977 | ||
4978 | if (i.tm.opcode_modifier.immext) | |
4979 | process_immext (); | |
4980 | } | |
4981 | else if (i.tm.opcode_modifier.firstxmm0) | |
4982 | { | |
4983 | unsigned int j; | |
4984 | ||
4985 | /* The first operand is implicit and must be xmm0/ymm0. */ | |
4986 | assert (i.reg_operands | |
4987 | && (operand_type_equal (&i.types[0], ®xmm) | |
4988 | || operand_type_equal (&i.types[0], ®ymm))); | |
4989 | if (i.op[0].regs->reg_num != 0) | |
4990 | return bad_implicit_operand (i.types[0].bitfield.regxmm); | |
9fcfb3d7 L |
4991 | |
4992 | for (j = 1; j < i.operands; j++) | |
4993 | { | |
4994 | i.op[j - 1] = i.op[j]; | |
4995 | i.types[j - 1] = i.types[j]; | |
4996 | ||
4997 | /* We need to adjust fields in i.tm since they are used by | |
4998 | build_modrm_byte. */ | |
4999 | i.tm.operand_types [j - 1] = i.tm.operand_types [j]; | |
5000 | } | |
5001 | ||
e2ec9d29 L |
5002 | i.operands--; |
5003 | i.reg_operands--; | |
e2ec9d29 L |
5004 | i.tm.operands--; |
5005 | } | |
5006 | else if (i.tm.opcode_modifier.regkludge) | |
5007 | { | |
5008 | /* The imul $imm, %reg instruction is converted into | |
5009 | imul $imm, %reg, %reg, and the clr %reg instruction | |
5010 | is converted into xor %reg, %reg. */ | |
5011 | ||
5012 | unsigned int first_reg_op; | |
5013 | ||
5014 | if (operand_type_check (i.types[0], reg)) | |
5015 | first_reg_op = 0; | |
5016 | else | |
5017 | first_reg_op = 1; | |
5018 | /* Pretend we saw the extra register operand. */ | |
5019 | assert (i.reg_operands == 1 | |
5020 | && i.op[first_reg_op + 1].regs == 0); | |
5021 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; | |
5022 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
5023 | i.operands++; | |
5024 | i.reg_operands++; | |
29b0f896 AM |
5025 | } |
5026 | ||
40fb9820 | 5027 | if (i.tm.opcode_modifier.shortform) |
29b0f896 | 5028 | { |
40fb9820 L |
5029 | if (i.types[0].bitfield.sreg2 |
5030 | || i.types[0].bitfield.sreg3) | |
29b0f896 | 5031 | { |
4eed87de AM |
5032 | if (i.tm.base_opcode == POP_SEG_SHORT |
5033 | && i.op[0].regs->reg_num == 1) | |
29b0f896 | 5034 | { |
a87af027 | 5035 | as_bad (_("you can't `pop %scs'"), register_prefix); |
4eed87de | 5036 | return 0; |
29b0f896 | 5037 | } |
4eed87de AM |
5038 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); |
5039 | if ((i.op[0].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5040 | i.rex |= REX_B; |
4eed87de AM |
5041 | } |
5042 | else | |
5043 | { | |
85f10a01 MM |
5044 | /* The register or float register operand is in operand |
5045 | 0 or 1. */ | |
40fb9820 L |
5046 | unsigned int op; |
5047 | ||
5048 | if (i.types[0].bitfield.floatreg | |
5049 | || operand_type_check (i.types[0], reg)) | |
5050 | op = 0; | |
5051 | else | |
5052 | op = 1; | |
4eed87de AM |
5053 | /* Register goes in low 3 bits of opcode. */ |
5054 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
5055 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5056 | i.rex |= REX_B; |
40fb9820 | 5057 | if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 | 5058 | { |
4eed87de AM |
5059 | /* Warn about some common errors, but press on regardless. |
5060 | The first case can be generated by gcc (<= 2.8.1). */ | |
5061 | if (i.operands == 2) | |
5062 | { | |
5063 | /* Reversed arguments on faddp, fsubp, etc. */ | |
a540244d L |
5064 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, |
5065 | register_prefix, i.op[1].regs->reg_name, | |
5066 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de AM |
5067 | } |
5068 | else | |
5069 | { | |
5070 | /* Extraneous `l' suffix on fp insn. */ | |
a540244d L |
5071 | as_warn (_("translating to `%s %s%s'"), i.tm.name, |
5072 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de | 5073 | } |
29b0f896 AM |
5074 | } |
5075 | } | |
5076 | } | |
40fb9820 | 5077 | else if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
5078 | { |
5079 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
5080 | must be put into the modrm byte). Now, we make the modrm and |
5081 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
5082 | |
5083 | default_seg = build_modrm_byte (); | |
5084 | } | |
8a2ed489 | 5085 | else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32) |
29b0f896 AM |
5086 | { |
5087 | default_seg = &ds; | |
5088 | } | |
40fb9820 | 5089 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
5090 | { |
5091 | /* For the string instructions that allow a segment override | |
5092 | on one of their operands, the default segment is ds. */ | |
5093 | default_seg = &ds; | |
5094 | } | |
5095 | ||
75178d9d L |
5096 | if (i.tm.base_opcode == 0x8d /* lea */ |
5097 | && i.seg[0] | |
5098 | && !quiet_warnings) | |
30123838 | 5099 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); |
52271982 AM |
5100 | |
5101 | /* If a segment was explicitly specified, and the specified segment | |
5102 | is not the default, use an opcode prefix to select it. If we | |
5103 | never figured out what the default segment is, then default_seg | |
5104 | will be zero at this point, and the specified segment prefix will | |
5105 | always be used. */ | |
29b0f896 AM |
5106 | if ((i.seg[0]) && (i.seg[0] != default_seg)) |
5107 | { | |
5108 | if (!add_prefix (i.seg[0]->seg_prefix)) | |
5109 | return 0; | |
5110 | } | |
5111 | return 1; | |
5112 | } | |
5113 | ||
5114 | static const seg_entry * | |
e3bb37b5 | 5115 | build_modrm_byte (void) |
29b0f896 AM |
5116 | { |
5117 | const seg_entry *default_seg = 0; | |
c0f3af97 L |
5118 | unsigned int source, dest; |
5119 | int vex_3_sources; | |
5120 | ||
5121 | /* The first operand of instructions with VEX prefix and 3 sources | |
5122 | must be VEX_Imm4. */ | |
5123 | vex_3_sources = i.tm.opcode_modifier.vex3sources; | |
5124 | if (vex_3_sources) | |
5125 | { | |
5126 | unsigned int nds, reg; | |
5127 | ||
0bfee649 | 5128 | dest = i.operands - 1; |
c0f3af97 | 5129 | nds = dest - 1; |
0bfee649 L |
5130 | source = 1; |
5131 | reg = 0; | |
5132 | ||
5133 | /* This instruction must have 4 operands: 4 register operands | |
5134 | or 3 register operands plus 1 memory operand. It must have | |
5135 | VexNDS and VexImmExt. */ | |
5136 | assert (i.operands == 4 | |
5137 | && (i.reg_operands == 4 | |
5138 | || (i.reg_operands == 3 && i.mem_operands == 1)) | |
5139 | && i.tm.opcode_modifier.vexnds | |
5140 | && i.tm.opcode_modifier.veximmext | |
5141 | && (operand_type_equal (&i.tm.operand_types[dest], | |
5142 | ®xmm) | |
5143 | || operand_type_equal (&i.tm.operand_types[dest], | |
5144 | ®ymm)) | |
5145 | && (operand_type_equal (&i.tm.operand_types[nds], | |
5146 | ®xmm) | |
5147 | || operand_type_equal (&i.tm.operand_types[nds], | |
5148 | ®ymm)) | |
5149 | && (operand_type_equal (&i.tm.operand_types[reg], | |
5150 | ®xmm) | |
c0f3af97 | 5151 | || operand_type_equal (&i.tm.operand_types[reg], |
0bfee649 | 5152 | ®ymm))); |
c0f3af97 | 5153 | |
0bfee649 L |
5154 | /* Generate an 8bit immediate operand to encode the register |
5155 | operand. */ | |
5156 | expressionS *exp = &im_expressions[i.imm_operands++]; | |
5157 | i.op[i.operands].imms = exp; | |
5158 | i.types[i.operands] = imm8; | |
5159 | i.operands++; | |
5160 | exp->X_op = O_constant; | |
5161 | exp->X_add_number | |
5162 | = ((i.op[0].regs->reg_num | |
5163 | + ((i.op[0].regs->reg_flags & RegRex) ? 8 : 0)) << 4); | |
dae39acc | 5164 | |
dae39acc | 5165 | i.vex.register_specifier = i.op[nds].regs; |
c0f3af97 L |
5166 | } |
5167 | else | |
5168 | source = dest = 0; | |
29b0f896 | 5169 | |
85f10a01 MM |
5170 | /* SSE5 4 operand instructions are encoded in such a way that one of |
5171 | the inputs must match the destination register. Process_drex hides | |
5172 | the 3rd argument in the drex field, so that by the time we get | |
5173 | here, it looks to GAS as if this is a 2 operand instruction. */ | |
5174 | if ((i.tm.opcode_modifier.drex | |
5175 | || i.tm.opcode_modifier.drexv | |
b5016f89 | 5176 | || i.tm.opcode_modifier.drexc) |
85f10a01 MM |
5177 | && i.reg_operands == 2) |
5178 | { | |
5179 | const reg_entry *reg = i.op[i.drex.modrm_reg].regs; | |
5180 | const reg_entry *regmem = i.op[i.drex.modrm_regmem].regs; | |
5181 | ||
5182 | i.rm.reg = reg->reg_num; | |
5183 | i.rm.regmem = regmem->reg_num; | |
5184 | i.rm.mode = 3; | |
5185 | if ((reg->reg_flags & RegRex) != 0) | |
5186 | i.rex |= REX_R; | |
5187 | if ((regmem->reg_flags & RegRex) != 0) | |
5188 | i.rex |= REX_B; | |
5189 | } | |
5190 | ||
29b0f896 | 5191 | /* i.reg_operands MUST be the number of real register operands; |
c0f3af97 L |
5192 | implicit registers do not count. If there are 3 register |
5193 | operands, it must be a instruction with VexNDS. For a | |
5194 | instruction with VexNDD, the destination register is encoded | |
5195 | in VEX prefix. If there are 4 register operands, it must be | |
5196 | a instruction with VEX prefix and 3 sources. */ | |
5197 | else if (i.mem_operands == 0 | |
5198 | && ((i.reg_operands == 2 | |
5199 | && !i.tm.opcode_modifier.vexndd) | |
5200 | || (i.reg_operands == 3 | |
5201 | && i.tm.opcode_modifier.vexnds) | |
5202 | || (i.reg_operands == 4 && vex_3_sources))) | |
29b0f896 | 5203 | { |
cab737b9 L |
5204 | switch (i.operands) |
5205 | { | |
5206 | case 2: | |
5207 | source = 0; | |
5208 | break; | |
5209 | case 3: | |
c81128dc L |
5210 | /* When there are 3 operands, one of them may be immediate, |
5211 | which may be the first or the last operand. Otherwise, | |
c0f3af97 L |
5212 | the first operand must be shift count register (cl) or it |
5213 | is an instruction with VexNDS. */ | |
c81128dc L |
5214 | assert (i.imm_operands == 1 |
5215 | || (i.imm_operands == 0 | |
c0f3af97 L |
5216 | && (i.tm.opcode_modifier.vexnds |
5217 | || i.types[0].bitfield.shiftcount))); | |
40fb9820 L |
5218 | if (operand_type_check (i.types[0], imm) |
5219 | || i.types[0].bitfield.shiftcount) | |
5220 | source = 1; | |
5221 | else | |
5222 | source = 0; | |
cab737b9 L |
5223 | break; |
5224 | case 4: | |
368d64cc L |
5225 | /* When there are 4 operands, the first two must be 8bit |
5226 | immediate operands. The source operand will be the 3rd | |
c0f3af97 L |
5227 | one. |
5228 | ||
5229 | For instructions with VexNDS, if the first operand | |
5230 | an imm8, the source operand is the 2nd one. If the last | |
5231 | operand is imm8, the source operand is the first one. */ | |
5232 | assert ((i.imm_operands == 2 | |
5233 | && i.types[0].bitfield.imm8 | |
5234 | && i.types[1].bitfield.imm8) | |
5235 | || (i.tm.opcode_modifier.vexnds | |
5236 | && i.imm_operands == 1 | |
5237 | && (i.types[0].bitfield.imm8 | |
5238 | || i.types[i.operands - 1].bitfield.imm8))); | |
5239 | if (i.tm.opcode_modifier.vexnds) | |
5240 | { | |
5241 | if (i.types[0].bitfield.imm8) | |
5242 | source = 1; | |
5243 | else | |
5244 | source = 0; | |
5245 | } | |
5246 | else | |
5247 | source = 2; | |
5248 | break; | |
5249 | case 5: | |
cab737b9 L |
5250 | break; |
5251 | default: | |
5252 | abort (); | |
5253 | } | |
5254 | ||
c0f3af97 L |
5255 | if (!vex_3_sources) |
5256 | { | |
5257 | dest = source + 1; | |
5258 | ||
5259 | if (i.tm.opcode_modifier.vexnds) | |
5260 | { | |
5261 | /* For instructions with VexNDS, the register-only | |
5262 | source operand must be XMM or YMM register. It is | |
fa99fab2 L |
5263 | encoded in VEX prefix. We need to clear RegMem bit |
5264 | before calling operand_type_equal. */ | |
5265 | i386_operand_type op = i.tm.operand_types[dest]; | |
5266 | op.bitfield.regmem = 0; | |
c0f3af97 | 5267 | if ((dest + 1) >= i.operands |
fa99fab2 L |
5268 | || (!operand_type_equal (&op, ®xmm) |
5269 | && !operand_type_equal (&op, ®ymm))) | |
c0f3af97 L |
5270 | abort (); |
5271 | i.vex.register_specifier = i.op[dest].regs; | |
5272 | dest++; | |
5273 | } | |
5274 | } | |
29b0f896 AM |
5275 | |
5276 | i.rm.mode = 3; | |
5277 | /* One of the register operands will be encoded in the i.tm.reg | |
5278 | field, the other in the combined i.tm.mode and i.tm.regmem | |
5279 | fields. If no form of this instruction supports a memory | |
5280 | destination operand, then we assume the source operand may | |
5281 | sometimes be a memory operand and so we need to store the | |
5282 | destination in the i.rm.reg field. */ | |
40fb9820 L |
5283 | if (!i.tm.operand_types[dest].bitfield.regmem |
5284 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) | |
29b0f896 AM |
5285 | { |
5286 | i.rm.reg = i.op[dest].regs->reg_num; | |
5287 | i.rm.regmem = i.op[source].regs->reg_num; | |
5288 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5289 | i.rex |= REX_R; |
29b0f896 | 5290 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 5291 | i.rex |= REX_B; |
29b0f896 AM |
5292 | } |
5293 | else | |
5294 | { | |
5295 | i.rm.reg = i.op[source].regs->reg_num; | |
5296 | i.rm.regmem = i.op[dest].regs->reg_num; | |
5297 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5298 | i.rex |= REX_B; |
29b0f896 | 5299 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 5300 | i.rex |= REX_R; |
29b0f896 | 5301 | } |
161a04f6 | 5302 | if (flag_code != CODE_64BIT && (i.rex & (REX_R | REX_B))) |
c4a530c5 | 5303 | { |
40fb9820 L |
5304 | if (!i.types[0].bitfield.control |
5305 | && !i.types[1].bitfield.control) | |
c4a530c5 | 5306 | abort (); |
161a04f6 | 5307 | i.rex &= ~(REX_R | REX_B); |
c4a530c5 JB |
5308 | add_prefix (LOCK_PREFIX_OPCODE); |
5309 | } | |
29b0f896 AM |
5310 | } |
5311 | else | |
5312 | { /* If it's not 2 reg operands... */ | |
c0f3af97 L |
5313 | unsigned int mem; |
5314 | ||
29b0f896 AM |
5315 | if (i.mem_operands) |
5316 | { | |
5317 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 5318 | unsigned int op; |
4eed87de | 5319 | |
85f10a01 MM |
5320 | /* This has been precalculated for SSE5 instructions |
5321 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
5322 | if (i.tm.opcode_modifier.drex |
5323 | || i.tm.opcode_modifier.drexv | |
5324 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
5325 | op = i.drex.modrm_regmem; |
5326 | else | |
5327 | { | |
c0209578 L |
5328 | for (op = 0; op < i.operands; op++) |
5329 | if (operand_type_check (i.types[op], anymem)) | |
5330 | break; | |
5331 | assert (op < i.operands); | |
85f10a01 | 5332 | } |
29b0f896 AM |
5333 | |
5334 | default_seg = &ds; | |
5335 | ||
5336 | if (i.base_reg == 0) | |
5337 | { | |
5338 | i.rm.mode = 0; | |
5339 | if (!i.disp_operands) | |
5340 | fake_zero_displacement = 1; | |
5341 | if (i.index_reg == 0) | |
5342 | { | |
5343 | /* Operand is just <disp> */ | |
20f0a1fc | 5344 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
5345 | { |
5346 | /* 64bit mode overwrites the 32bit absolute | |
5347 | addressing by RIP relative addressing and | |
5348 | absolute addressing is encoded by one of the | |
5349 | redundant SIB forms. */ | |
5350 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
5351 | i.sib.base = NO_BASE_REGISTER; | |
5352 | i.sib.index = NO_INDEX_REGISTER; | |
fc225355 | 5353 | i.types[op] = ((i.prefix[ADDR_PREFIX] == 0) |
40fb9820 | 5354 | ? disp32s : disp32); |
20f0a1fc | 5355 | } |
fc225355 L |
5356 | else if ((flag_code == CODE_16BIT) |
5357 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
5358 | { |
5359 | i.rm.regmem = NO_BASE_REGISTER_16; | |
40fb9820 | 5360 | i.types[op] = disp16; |
20f0a1fc NC |
5361 | } |
5362 | else | |
5363 | { | |
5364 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 | 5365 | i.types[op] = disp32; |
29b0f896 AM |
5366 | } |
5367 | } | |
5368 | else /* !i.base_reg && i.index_reg */ | |
5369 | { | |
db51cc60 L |
5370 | if (i.index_reg->reg_num == RegEiz |
5371 | || i.index_reg->reg_num == RegRiz) | |
5372 | i.sib.index = NO_INDEX_REGISTER; | |
5373 | else | |
5374 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
5375 | i.sib.base = NO_BASE_REGISTER; |
5376 | i.sib.scale = i.log2_scale_factor; | |
5377 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
40fb9820 L |
5378 | i.types[op].bitfield.disp8 = 0; |
5379 | i.types[op].bitfield.disp16 = 0; | |
5380 | i.types[op].bitfield.disp64 = 0; | |
29b0f896 | 5381 | if (flag_code != CODE_64BIT) |
40fb9820 L |
5382 | { |
5383 | /* Must be 32 bit */ | |
5384 | i.types[op].bitfield.disp32 = 1; | |
5385 | i.types[op].bitfield.disp32s = 0; | |
5386 | } | |
29b0f896 | 5387 | else |
40fb9820 L |
5388 | { |
5389 | i.types[op].bitfield.disp32 = 0; | |
5390 | i.types[op].bitfield.disp32s = 1; | |
5391 | } | |
29b0f896 | 5392 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 5393 | i.rex |= REX_X; |
29b0f896 AM |
5394 | } |
5395 | } | |
5396 | /* RIP addressing for 64bit mode. */ | |
9a04903e JB |
5397 | else if (i.base_reg->reg_num == RegRip || |
5398 | i.base_reg->reg_num == RegEip) | |
29b0f896 AM |
5399 | { |
5400 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 L |
5401 | i.types[op].bitfield.disp8 = 0; |
5402 | i.types[op].bitfield.disp16 = 0; | |
5403 | i.types[op].bitfield.disp32 = 0; | |
5404 | i.types[op].bitfield.disp32s = 1; | |
5405 | i.types[op].bitfield.disp64 = 0; | |
71903a11 | 5406 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
5407 | if (! i.disp_operands) |
5408 | fake_zero_displacement = 1; | |
29b0f896 | 5409 | } |
40fb9820 | 5410 | else if (i.base_reg->reg_type.bitfield.reg16) |
29b0f896 AM |
5411 | { |
5412 | switch (i.base_reg->reg_num) | |
5413 | { | |
5414 | case 3: /* (%bx) */ | |
5415 | if (i.index_reg == 0) | |
5416 | i.rm.regmem = 7; | |
5417 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
5418 | i.rm.regmem = i.index_reg->reg_num - 6; | |
5419 | break; | |
5420 | case 5: /* (%bp) */ | |
5421 | default_seg = &ss; | |
5422 | if (i.index_reg == 0) | |
5423 | { | |
5424 | i.rm.regmem = 6; | |
40fb9820 | 5425 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
5426 | { |
5427 | /* fake (%bp) into 0(%bp) */ | |
40fb9820 | 5428 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 5429 | fake_zero_displacement = 1; |
29b0f896 AM |
5430 | } |
5431 | } | |
5432 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
5433 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
5434 | break; | |
5435 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
5436 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
5437 | } | |
5438 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
5439 | } | |
5440 | else /* i.base_reg and 32/64 bit mode */ | |
5441 | { | |
5442 | if (flag_code == CODE_64BIT | |
40fb9820 L |
5443 | && operand_type_check (i.types[op], disp)) |
5444 | { | |
5445 | i386_operand_type temp; | |
0dfbf9d7 | 5446 | operand_type_set (&temp, 0); |
40fb9820 L |
5447 | temp.bitfield.disp8 = i.types[op].bitfield.disp8; |
5448 | i.types[op] = temp; | |
5449 | if (i.prefix[ADDR_PREFIX] == 0) | |
5450 | i.types[op].bitfield.disp32s = 1; | |
5451 | else | |
5452 | i.types[op].bitfield.disp32 = 1; | |
5453 | } | |
20f0a1fc | 5454 | |
29b0f896 AM |
5455 | i.rm.regmem = i.base_reg->reg_num; |
5456 | if ((i.base_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 5457 | i.rex |= REX_B; |
29b0f896 AM |
5458 | i.sib.base = i.base_reg->reg_num; |
5459 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
5460 | complications. */ | |
5461 | if ((i.base_reg->reg_num & 7) == EBP_REG_NUM) | |
5462 | { | |
5463 | default_seg = &ss; | |
5464 | if (i.disp_operands == 0) | |
5465 | { | |
5466 | fake_zero_displacement = 1; | |
40fb9820 | 5467 | i.types[op].bitfield.disp8 = 1; |
29b0f896 AM |
5468 | } |
5469 | } | |
5470 | else if (i.base_reg->reg_num == ESP_REG_NUM) | |
5471 | { | |
5472 | default_seg = &ss; | |
5473 | } | |
5474 | i.sib.scale = i.log2_scale_factor; | |
5475 | if (i.index_reg == 0) | |
5476 | { | |
5477 | /* <disp>(%esp) becomes two byte modrm with no index | |
5478 | register. We've already stored the code for esp | |
5479 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
5480 | Any base register besides %esp will not use the | |
5481 | extra modrm byte. */ | |
5482 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 AM |
5483 | } |
5484 | else | |
5485 | { | |
db51cc60 L |
5486 | if (i.index_reg->reg_num == RegEiz |
5487 | || i.index_reg->reg_num == RegRiz) | |
5488 | i.sib.index = NO_INDEX_REGISTER; | |
5489 | else | |
5490 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
5491 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
5492 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 5493 | i.rex |= REX_X; |
29b0f896 | 5494 | } |
67a4f2b7 AO |
5495 | |
5496 | if (i.disp_operands | |
5497 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
5498 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
5499 | i.rm.mode = 0; | |
5500 | else | |
5501 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
29b0f896 | 5502 | } |
252b5132 | 5503 | |
29b0f896 AM |
5504 | if (fake_zero_displacement) |
5505 | { | |
5506 | /* Fakes a zero displacement assuming that i.types[op] | |
5507 | holds the correct displacement size. */ | |
5508 | expressionS *exp; | |
5509 | ||
5510 | assert (i.op[op].disps == 0); | |
5511 | exp = &disp_expressions[i.disp_operands++]; | |
5512 | i.op[op].disps = exp; | |
5513 | exp->X_op = O_constant; | |
5514 | exp->X_add_number = 0; | |
5515 | exp->X_add_symbol = (symbolS *) 0; | |
5516 | exp->X_op_symbol = (symbolS *) 0; | |
5517 | } | |
c0f3af97 L |
5518 | |
5519 | mem = op; | |
29b0f896 | 5520 | } |
c0f3af97 L |
5521 | else |
5522 | mem = ~0; | |
252b5132 | 5523 | |
29b0f896 AM |
5524 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
5525 | (if any) based on i.tm.extension_opcode. Again, we must be | |
5526 | careful to make sure that segment/control/debug/test/MMX | |
5527 | registers are coded into the i.rm.reg field. */ | |
5528 | if (i.reg_operands) | |
5529 | { | |
99018f42 L |
5530 | unsigned int op; |
5531 | ||
85f10a01 MM |
5532 | /* This has been precalculated for SSE5 instructions |
5533 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
5534 | if (i.tm.opcode_modifier.drex |
5535 | || i.tm.opcode_modifier.drexv | |
5536 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
5537 | { |
5538 | op = i.drex.modrm_reg; | |
5539 | i.rm.reg = i.op[op].regs->reg_num; | |
5540 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5541 | i.rex |= REX_R; | |
5542 | } | |
5543 | else | |
5544 | { | |
c0f3af97 L |
5545 | unsigned int vex_reg = ~0; |
5546 | ||
c0209578 L |
5547 | for (op = 0; op < i.operands; op++) |
5548 | if (i.types[op].bitfield.reg8 | |
5549 | || i.types[op].bitfield.reg16 | |
5550 | || i.types[op].bitfield.reg32 | |
5551 | || i.types[op].bitfield.reg64 | |
5552 | || i.types[op].bitfield.regmmx | |
5553 | || i.types[op].bitfield.regxmm | |
c0f3af97 | 5554 | || i.types[op].bitfield.regymm |
c0209578 L |
5555 | || i.types[op].bitfield.sreg2 |
5556 | || i.types[op].bitfield.sreg3 | |
5557 | || i.types[op].bitfield.control | |
5558 | || i.types[op].bitfield.debug | |
5559 | || i.types[op].bitfield.test) | |
5560 | break; | |
5561 | ||
c0f3af97 L |
5562 | if (vex_3_sources) |
5563 | op = dest; | |
5564 | else if (i.tm.opcode_modifier.vexnds) | |
5565 | { | |
5566 | /* For instructions with VexNDS, the register-only | |
5567 | source operand is encoded in VEX prefix. */ | |
5568 | assert (mem != (unsigned int) ~0); | |
5569 | ||
5570 | if (op > mem) | |
5571 | { | |
5572 | vex_reg = op++; | |
5573 | assert (op < i.operands); | |
5574 | } | |
5575 | else | |
5576 | { | |
5577 | vex_reg = op + 1; | |
5578 | assert (vex_reg < i.operands); | |
5579 | } | |
5580 | } | |
5581 | else if (i.tm.opcode_modifier.vexndd) | |
5582 | { | |
5583 | /* For instructions with VexNDD, there should be | |
5584 | no memory operand and the register destination | |
5585 | is encoded in VEX prefix. */ | |
5586 | assert (i.mem_operands == 0 | |
5587 | && (op + 2) == i.operands); | |
5588 | vex_reg = op + 1; | |
5589 | } | |
5590 | else | |
5591 | assert (op < i.operands); | |
5592 | ||
5593 | if (vex_reg != (unsigned int) ~0) | |
5594 | { | |
5595 | assert (i.reg_operands == 2); | |
5596 | ||
5597 | if (!operand_type_equal (&i.tm.operand_types[vex_reg], | |
5598 | & regxmm) | |
5599 | && !operand_type_equal (&i.tm.operand_types[vex_reg], | |
5600 | ®ymm)) | |
5601 | abort (); | |
5602 | i.vex.register_specifier = i.op[vex_reg].regs; | |
5603 | } | |
99018f42 | 5604 | |
85f10a01 MM |
5605 | /* If there is an extension opcode to put here, the |
5606 | register number must be put into the regmem field. */ | |
c0209578 L |
5607 | if (i.tm.extension_opcode != None) |
5608 | { | |
5609 | i.rm.regmem = i.op[op].regs->reg_num; | |
5610 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5611 | i.rex |= REX_B; | |
5612 | } | |
5613 | else | |
5614 | { | |
5615 | i.rm.reg = i.op[op].regs->reg_num; | |
5616 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5617 | i.rex |= REX_R; | |
5618 | } | |
85f10a01 | 5619 | } |
252b5132 | 5620 | |
29b0f896 AM |
5621 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
5622 | must set it to 3 to indicate this is a register operand | |
5623 | in the regmem field. */ | |
5624 | if (!i.mem_operands) | |
5625 | i.rm.mode = 3; | |
5626 | } | |
252b5132 | 5627 | |
29b0f896 | 5628 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
85f10a01 MM |
5629 | if (i.tm.extension_opcode != None |
5630 | && !(i.tm.opcode_modifier.drex | |
5631 | || i.tm.opcode_modifier.drexv | |
5632 | || i.tm.opcode_modifier.drexc)) | |
29b0f896 AM |
5633 | i.rm.reg = i.tm.extension_opcode; |
5634 | } | |
5635 | return default_seg; | |
5636 | } | |
252b5132 | 5637 | |
29b0f896 | 5638 | static void |
e3bb37b5 | 5639 | output_branch (void) |
29b0f896 AM |
5640 | { |
5641 | char *p; | |
5642 | int code16; | |
5643 | int prefix; | |
5644 | relax_substateT subtype; | |
5645 | symbolS *sym; | |
5646 | offsetT off; | |
5647 | ||
5648 | code16 = 0; | |
5649 | if (flag_code == CODE_16BIT) | |
5650 | code16 = CODE16; | |
5651 | ||
5652 | prefix = 0; | |
5653 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 5654 | { |
29b0f896 AM |
5655 | prefix = 1; |
5656 | i.prefixes -= 1; | |
5657 | code16 ^= CODE16; | |
252b5132 | 5658 | } |
29b0f896 AM |
5659 | /* Pentium4 branch hints. */ |
5660 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
5661 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 5662 | { |
29b0f896 AM |
5663 | prefix++; |
5664 | i.prefixes--; | |
5665 | } | |
5666 | if (i.prefix[REX_PREFIX] != 0) | |
5667 | { | |
5668 | prefix++; | |
5669 | i.prefixes--; | |
2f66722d AM |
5670 | } |
5671 | ||
29b0f896 AM |
5672 | if (i.prefixes != 0 && !intel_syntax) |
5673 | as_warn (_("skipping prefixes on this instruction")); | |
5674 | ||
5675 | /* It's always a symbol; End frag & setup for relax. | |
5676 | Make sure there is enough room in this frag for the largest | |
5677 | instruction we may generate in md_convert_frag. This is 2 | |
5678 | bytes for the opcode and room for the prefix and largest | |
5679 | displacement. */ | |
5680 | frag_grow (prefix + 2 + 4); | |
5681 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
5682 | p = frag_more (prefix + 1); | |
5683 | if (i.prefix[DATA_PREFIX] != 0) | |
5684 | *p++ = DATA_PREFIX_OPCODE; | |
5685 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
5686 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
5687 | *p++ = i.prefix[SEG_PREFIX]; | |
5688 | if (i.prefix[REX_PREFIX] != 0) | |
5689 | *p++ = i.prefix[REX_PREFIX]; | |
5690 | *p = i.tm.base_opcode; | |
5691 | ||
5692 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
5693 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, SMALL); | |
40fb9820 | 5694 | else if (cpu_arch_flags.bitfield.cpui386) |
29b0f896 AM |
5695 | subtype = ENCODE_RELAX_STATE (COND_JUMP, SMALL); |
5696 | else | |
5697 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, SMALL); | |
5698 | subtype |= code16; | |
3e73aa7c | 5699 | |
29b0f896 AM |
5700 | sym = i.op[0].disps->X_add_symbol; |
5701 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 5702 | |
29b0f896 AM |
5703 | if (i.op[0].disps->X_op != O_constant |
5704 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 5705 | { |
29b0f896 AM |
5706 | /* Handle complex expressions. */ |
5707 | sym = make_expr_symbol (i.op[0].disps); | |
5708 | off = 0; | |
5709 | } | |
3e73aa7c | 5710 | |
29b0f896 AM |
5711 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
5712 | Pass reloc in fr_var. */ | |
5713 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); | |
5714 | } | |
3e73aa7c | 5715 | |
29b0f896 | 5716 | static void |
e3bb37b5 | 5717 | output_jump (void) |
29b0f896 AM |
5718 | { |
5719 | char *p; | |
5720 | int size; | |
3e02c1cc | 5721 | fixS *fixP; |
29b0f896 | 5722 | |
40fb9820 | 5723 | if (i.tm.opcode_modifier.jumpbyte) |
29b0f896 AM |
5724 | { |
5725 | /* This is a loop or jecxz type instruction. */ | |
5726 | size = 1; | |
5727 | if (i.prefix[ADDR_PREFIX] != 0) | |
5728 | { | |
5729 | FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE); | |
5730 | i.prefixes -= 1; | |
5731 | } | |
5732 | /* Pentium4 branch hints. */ | |
5733 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
5734 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
5735 | { | |
5736 | FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]); | |
5737 | i.prefixes--; | |
3e73aa7c JH |
5738 | } |
5739 | } | |
29b0f896 AM |
5740 | else |
5741 | { | |
5742 | int code16; | |
3e73aa7c | 5743 | |
29b0f896 AM |
5744 | code16 = 0; |
5745 | if (flag_code == CODE_16BIT) | |
5746 | code16 = CODE16; | |
3e73aa7c | 5747 | |
29b0f896 AM |
5748 | if (i.prefix[DATA_PREFIX] != 0) |
5749 | { | |
5750 | FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE); | |
5751 | i.prefixes -= 1; | |
5752 | code16 ^= CODE16; | |
5753 | } | |
252b5132 | 5754 | |
29b0f896 AM |
5755 | size = 4; |
5756 | if (code16) | |
5757 | size = 2; | |
5758 | } | |
9fcc94b6 | 5759 | |
29b0f896 AM |
5760 | if (i.prefix[REX_PREFIX] != 0) |
5761 | { | |
5762 | FRAG_APPEND_1_CHAR (i.prefix[REX_PREFIX]); | |
5763 | i.prefixes -= 1; | |
5764 | } | |
252b5132 | 5765 | |
29b0f896 AM |
5766 | if (i.prefixes != 0 && !intel_syntax) |
5767 | as_warn (_("skipping prefixes on this instruction")); | |
e0890092 | 5768 | |
29b0f896 AM |
5769 | p = frag_more (1 + size); |
5770 | *p++ = i.tm.base_opcode; | |
e0890092 | 5771 | |
3e02c1cc AM |
5772 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
5773 | i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0])); | |
5774 | ||
5775 | /* All jumps handled here are signed, but don't use a signed limit | |
5776 | check for 32 and 16 bit jumps as we want to allow wrap around at | |
5777 | 4G and 64k respectively. */ | |
5778 | if (size == 1) | |
5779 | fixP->fx_signed = 1; | |
29b0f896 | 5780 | } |
e0890092 | 5781 | |
29b0f896 | 5782 | static void |
e3bb37b5 | 5783 | output_interseg_jump (void) |
29b0f896 AM |
5784 | { |
5785 | char *p; | |
5786 | int size; | |
5787 | int prefix; | |
5788 | int code16; | |
252b5132 | 5789 | |
29b0f896 AM |
5790 | code16 = 0; |
5791 | if (flag_code == CODE_16BIT) | |
5792 | code16 = CODE16; | |
a217f122 | 5793 | |
29b0f896 AM |
5794 | prefix = 0; |
5795 | if (i.prefix[DATA_PREFIX] != 0) | |
5796 | { | |
5797 | prefix = 1; | |
5798 | i.prefixes -= 1; | |
5799 | code16 ^= CODE16; | |
5800 | } | |
5801 | if (i.prefix[REX_PREFIX] != 0) | |
5802 | { | |
5803 | prefix++; | |
5804 | i.prefixes -= 1; | |
5805 | } | |
252b5132 | 5806 | |
29b0f896 AM |
5807 | size = 4; |
5808 | if (code16) | |
5809 | size = 2; | |
252b5132 | 5810 | |
29b0f896 AM |
5811 | if (i.prefixes != 0 && !intel_syntax) |
5812 | as_warn (_("skipping prefixes on this instruction")); | |
252b5132 | 5813 | |
29b0f896 AM |
5814 | /* 1 opcode; 2 segment; offset */ |
5815 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 5816 | |
29b0f896 AM |
5817 | if (i.prefix[DATA_PREFIX] != 0) |
5818 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 5819 | |
29b0f896 AM |
5820 | if (i.prefix[REX_PREFIX] != 0) |
5821 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 5822 | |
29b0f896 AM |
5823 | *p++ = i.tm.base_opcode; |
5824 | if (i.op[1].imms->X_op == O_constant) | |
5825 | { | |
5826 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 5827 | |
29b0f896 AM |
5828 | if (size == 2 |
5829 | && !fits_in_unsigned_word (n) | |
5830 | && !fits_in_signed_word (n)) | |
5831 | { | |
5832 | as_bad (_("16-bit jump out of range")); | |
5833 | return; | |
5834 | } | |
5835 | md_number_to_chars (p, n, size); | |
5836 | } | |
5837 | else | |
5838 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
5839 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); | |
5840 | if (i.op[0].imms->X_op != O_constant) | |
5841 | as_bad (_("can't handle non absolute segment in `%s'"), | |
5842 | i.tm.name); | |
5843 | md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2); | |
5844 | } | |
a217f122 | 5845 | |
29b0f896 | 5846 | static void |
e3bb37b5 | 5847 | output_insn (void) |
29b0f896 | 5848 | { |
2bbd9c25 JJ |
5849 | fragS *insn_start_frag; |
5850 | offsetT insn_start_off; | |
5851 | ||
29b0f896 AM |
5852 | /* Tie dwarf2 debug info to the address at the start of the insn. |
5853 | We can't do this after the insn has been output as the current | |
5854 | frag may have been closed off. eg. by frag_var. */ | |
5855 | dwarf2_emit_insn (0); | |
5856 | ||
2bbd9c25 JJ |
5857 | insn_start_frag = frag_now; |
5858 | insn_start_off = frag_now_fix (); | |
5859 | ||
29b0f896 | 5860 | /* Output jumps. */ |
40fb9820 | 5861 | if (i.tm.opcode_modifier.jump) |
29b0f896 | 5862 | output_branch (); |
40fb9820 L |
5863 | else if (i.tm.opcode_modifier.jumpbyte |
5864 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 | 5865 | output_jump (); |
40fb9820 | 5866 | else if (i.tm.opcode_modifier.jumpintersegment) |
29b0f896 AM |
5867 | output_interseg_jump (); |
5868 | else | |
5869 | { | |
5870 | /* Output normal instructions here. */ | |
5871 | char *p; | |
5872 | unsigned char *q; | |
47465058 | 5873 | unsigned int j; |
331d2d0d | 5874 | unsigned int prefix; |
4dffcebc | 5875 | |
c0f3af97 L |
5876 | /* Since the VEX prefix contains the implicit prefix, we don't |
5877 | need the explicit prefix. */ | |
5878 | if (!i.tm.opcode_modifier.vex) | |
bc4bd9ab | 5879 | { |
c0f3af97 | 5880 | switch (i.tm.opcode_length) |
bc4bd9ab | 5881 | { |
c0f3af97 L |
5882 | case 3: |
5883 | if (i.tm.base_opcode & 0xff000000) | |
4dffcebc | 5884 | { |
c0f3af97 L |
5885 | prefix = (i.tm.base_opcode >> 24) & 0xff; |
5886 | goto check_prefix; | |
5887 | } | |
5888 | break; | |
5889 | case 2: | |
5890 | if ((i.tm.base_opcode & 0xff0000) != 0) | |
5891 | { | |
5892 | prefix = (i.tm.base_opcode >> 16) & 0xff; | |
5893 | if (i.tm.cpu_flags.bitfield.cpupadlock) | |
5894 | { | |
4dffcebc | 5895 | check_prefix: |
c0f3af97 L |
5896 | if (prefix != REPE_PREFIX_OPCODE |
5897 | || (i.prefix[LOCKREP_PREFIX] | |
5898 | != REPE_PREFIX_OPCODE)) | |
5899 | add_prefix (prefix); | |
5900 | } | |
5901 | else | |
4dffcebc L |
5902 | add_prefix (prefix); |
5903 | } | |
c0f3af97 L |
5904 | break; |
5905 | case 1: | |
5906 | break; | |
5907 | default: | |
5908 | abort (); | |
bc4bd9ab | 5909 | } |
c0f3af97 L |
5910 | |
5911 | /* The prefix bytes. */ | |
5912 | for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++) | |
5913 | if (*q) | |
5914 | FRAG_APPEND_1_CHAR (*q); | |
0f10071e | 5915 | } |
252b5132 | 5916 | |
c0f3af97 L |
5917 | if (i.tm.opcode_modifier.vex) |
5918 | { | |
5919 | for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++) | |
5920 | if (*q) | |
5921 | switch (j) | |
5922 | { | |
5923 | case REX_PREFIX: | |
5924 | /* REX byte is encoded in VEX prefix. */ | |
5925 | break; | |
5926 | case SEG_PREFIX: | |
5927 | case ADDR_PREFIX: | |
5928 | FRAG_APPEND_1_CHAR (*q); | |
5929 | break; | |
5930 | default: | |
5931 | /* There should be no other prefixes for instructions | |
5932 | with VEX prefix. */ | |
5933 | abort (); | |
5934 | } | |
5935 | ||
5936 | /* Now the VEX prefix. */ | |
5937 | p = frag_more (i.vex.length); | |
5938 | for (j = 0; j < i.vex.length; j++) | |
5939 | p[j] = i.vex.bytes[j]; | |
5940 | } | |
252b5132 | 5941 | |
29b0f896 | 5942 | /* Now the opcode; be careful about word order here! */ |
4dffcebc | 5943 | if (i.tm.opcode_length == 1) |
29b0f896 AM |
5944 | { |
5945 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
5946 | } | |
5947 | else | |
5948 | { | |
4dffcebc | 5949 | switch (i.tm.opcode_length) |
331d2d0d | 5950 | { |
4dffcebc | 5951 | case 3: |
331d2d0d L |
5952 | p = frag_more (3); |
5953 | *p++ = (i.tm.base_opcode >> 16) & 0xff; | |
4dffcebc L |
5954 | break; |
5955 | case 2: | |
5956 | p = frag_more (2); | |
5957 | break; | |
5958 | default: | |
5959 | abort (); | |
5960 | break; | |
331d2d0d | 5961 | } |
0f10071e | 5962 | |
29b0f896 AM |
5963 | /* Put out high byte first: can't use md_number_to_chars! */ |
5964 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
5965 | *p = i.tm.base_opcode & 0xff; | |
85f10a01 MM |
5966 | |
5967 | /* On SSE5, encode the OC1 bit in the DREX field if this | |
5968 | encoding has multiple formats. */ | |
5969 | if (i.tm.opcode_modifier.drex | |
5970 | && i.tm.opcode_modifier.drexv | |
5971 | && DREX_OC1 (i.tm.extension_opcode)) | |
5972 | *p |= DREX_OC1_MASK; | |
29b0f896 | 5973 | } |
3e73aa7c | 5974 | |
29b0f896 | 5975 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 5976 | if (i.tm.opcode_modifier.modrm) |
29b0f896 | 5977 | { |
4a3523fa L |
5978 | FRAG_APPEND_1_CHAR ((i.rm.regmem << 0 |
5979 | | i.rm.reg << 3 | |
5980 | | i.rm.mode << 6)); | |
29b0f896 AM |
5981 | /* If i.rm.regmem == ESP (4) |
5982 | && i.rm.mode != (Register mode) | |
5983 | && not 16 bit | |
5984 | ==> need second modrm byte. */ | |
5985 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
5986 | && i.rm.mode != 3 | |
40fb9820 | 5987 | && !(i.base_reg && i.base_reg->reg_type.bitfield.reg16)) |
4a3523fa L |
5988 | FRAG_APPEND_1_CHAR ((i.sib.base << 0 |
5989 | | i.sib.index << 3 | |
5990 | | i.sib.scale << 6)); | |
29b0f896 | 5991 | } |
3e73aa7c | 5992 | |
85f10a01 MM |
5993 | /* Write the DREX byte if needed. */ |
5994 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
5995 | { | |
5996 | p = frag_more (1); | |
5997 | *p = (((i.drex.reg & 0xf) << 4) | (i.drex.rex & 0x7)); | |
5998 | ||
5999 | /* Encode the OC0 bit if this encoding has multiple | |
6000 | formats. */ | |
6001 | if ((i.tm.opcode_modifier.drex | |
6002 | || i.tm.opcode_modifier.drexv) | |
6003 | && DREX_OC0 (i.tm.extension_opcode)) | |
6004 | *p |= DREX_OC0_MASK; | |
6005 | } | |
6006 | ||
29b0f896 | 6007 | if (i.disp_operands) |
2bbd9c25 | 6008 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 6009 | |
29b0f896 | 6010 | if (i.imm_operands) |
2bbd9c25 | 6011 | output_imm (insn_start_frag, insn_start_off); |
29b0f896 | 6012 | } |
252b5132 | 6013 | |
29b0f896 AM |
6014 | #ifdef DEBUG386 |
6015 | if (flag_debug) | |
6016 | { | |
7b81dfbb | 6017 | pi ("" /*line*/, &i); |
29b0f896 AM |
6018 | } |
6019 | #endif /* DEBUG386 */ | |
6020 | } | |
252b5132 | 6021 | |
e205caa7 L |
6022 | /* Return the size of the displacement operand N. */ |
6023 | ||
6024 | static int | |
6025 | disp_size (unsigned int n) | |
6026 | { | |
6027 | int size = 4; | |
40fb9820 L |
6028 | if (i.types[n].bitfield.disp64) |
6029 | size = 8; | |
6030 | else if (i.types[n].bitfield.disp8) | |
6031 | size = 1; | |
6032 | else if (i.types[n].bitfield.disp16) | |
6033 | size = 2; | |
e205caa7 L |
6034 | return size; |
6035 | } | |
6036 | ||
6037 | /* Return the size of the immediate operand N. */ | |
6038 | ||
6039 | static int | |
6040 | imm_size (unsigned int n) | |
6041 | { | |
6042 | int size = 4; | |
40fb9820 L |
6043 | if (i.types[n].bitfield.imm64) |
6044 | size = 8; | |
6045 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
6046 | size = 1; | |
6047 | else if (i.types[n].bitfield.imm16) | |
6048 | size = 2; | |
e205caa7 L |
6049 | return size; |
6050 | } | |
6051 | ||
29b0f896 | 6052 | static void |
64e74474 | 6053 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
6054 | { |
6055 | char *p; | |
6056 | unsigned int n; | |
252b5132 | 6057 | |
29b0f896 AM |
6058 | for (n = 0; n < i.operands; n++) |
6059 | { | |
40fb9820 | 6060 | if (operand_type_check (i.types[n], disp)) |
29b0f896 AM |
6061 | { |
6062 | if (i.op[n].disps->X_op == O_constant) | |
6063 | { | |
e205caa7 | 6064 | int size = disp_size (n); |
29b0f896 | 6065 | offsetT val; |
252b5132 | 6066 | |
29b0f896 AM |
6067 | val = offset_in_range (i.op[n].disps->X_add_number, |
6068 | size); | |
6069 | p = frag_more (size); | |
6070 | md_number_to_chars (p, val, size); | |
6071 | } | |
6072 | else | |
6073 | { | |
f86103b7 | 6074 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 6075 | int size = disp_size (n); |
40fb9820 | 6076 | int sign = i.types[n].bitfield.disp32s; |
29b0f896 AM |
6077 | int pcrel = (i.flags[n] & Operand_PCrel) != 0; |
6078 | ||
e205caa7 | 6079 | /* We can't have 8 bit displacement here. */ |
40fb9820 | 6080 | assert (!i.types[n].bitfield.disp8); |
e205caa7 | 6081 | |
29b0f896 AM |
6082 | /* The PC relative address is computed relative |
6083 | to the instruction boundary, so in case immediate | |
6084 | fields follows, we need to adjust the value. */ | |
6085 | if (pcrel && i.imm_operands) | |
6086 | { | |
29b0f896 | 6087 | unsigned int n1; |
e205caa7 | 6088 | int sz = 0; |
252b5132 | 6089 | |
29b0f896 | 6090 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 6091 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 6092 | { |
e205caa7 L |
6093 | /* Only one immediate is allowed for PC |
6094 | relative address. */ | |
6095 | assert (sz == 0); | |
6096 | sz = imm_size (n1); | |
6097 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 6098 | } |
29b0f896 | 6099 | /* We should find the immediate. */ |
e205caa7 | 6100 | assert (sz != 0); |
29b0f896 | 6101 | } |
520dc8e8 | 6102 | |
29b0f896 | 6103 | p = frag_more (size); |
2bbd9c25 | 6104 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 6105 | if (GOT_symbol |
2bbd9c25 | 6106 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 6107 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
6108 | || reloc_type == BFD_RELOC_X86_64_32S |
6109 | || (reloc_type == BFD_RELOC_64 | |
6110 | && object_64bit)) | |
d6ab8113 JB |
6111 | && (i.op[n].disps->X_op == O_symbol |
6112 | || (i.op[n].disps->X_op == O_add | |
6113 | && ((symbol_get_value_expression | |
6114 | (i.op[n].disps->X_op_symbol)->X_op) | |
6115 | == O_subtract)))) | |
6116 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 JJ |
6117 | { |
6118 | offsetT add; | |
6119 | ||
6120 | if (insn_start_frag == frag_now) | |
6121 | add = (p - frag_now->fr_literal) - insn_start_off; | |
6122 | else | |
6123 | { | |
6124 | fragS *fr; | |
6125 | ||
6126 | add = insn_start_frag->fr_fix - insn_start_off; | |
6127 | for (fr = insn_start_frag->fr_next; | |
6128 | fr && fr != frag_now; fr = fr->fr_next) | |
6129 | add += fr->fr_fix; | |
6130 | add += p - frag_now->fr_literal; | |
6131 | } | |
6132 | ||
4fa24527 | 6133 | if (!object_64bit) |
7b81dfbb AJ |
6134 | { |
6135 | reloc_type = BFD_RELOC_386_GOTPC; | |
6136 | i.op[n].imms->X_add_number += add; | |
6137 | } | |
6138 | else if (reloc_type == BFD_RELOC_64) | |
6139 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 6140 | else |
7b81dfbb AJ |
6141 | /* Don't do the adjustment for x86-64, as there |
6142 | the pcrel addressing is relative to the _next_ | |
6143 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 6144 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 6145 | } |
062cd5e7 | 6146 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
2bbd9c25 | 6147 | i.op[n].disps, pcrel, reloc_type); |
29b0f896 AM |
6148 | } |
6149 | } | |
6150 | } | |
6151 | } | |
252b5132 | 6152 | |
29b0f896 | 6153 | static void |
64e74474 | 6154 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
6155 | { |
6156 | char *p; | |
6157 | unsigned int n; | |
252b5132 | 6158 | |
29b0f896 AM |
6159 | for (n = 0; n < i.operands; n++) |
6160 | { | |
40fb9820 | 6161 | if (operand_type_check (i.types[n], imm)) |
29b0f896 AM |
6162 | { |
6163 | if (i.op[n].imms->X_op == O_constant) | |
6164 | { | |
e205caa7 | 6165 | int size = imm_size (n); |
29b0f896 | 6166 | offsetT val; |
b4cac588 | 6167 | |
29b0f896 AM |
6168 | val = offset_in_range (i.op[n].imms->X_add_number, |
6169 | size); | |
6170 | p = frag_more (size); | |
6171 | md_number_to_chars (p, val, size); | |
6172 | } | |
6173 | else | |
6174 | { | |
6175 | /* Not absolute_section. | |
6176 | Need a 32-bit fixup (don't support 8bit | |
6177 | non-absolute imms). Try to support other | |
6178 | sizes ... */ | |
f86103b7 | 6179 | enum bfd_reloc_code_real reloc_type; |
e205caa7 L |
6180 | int size = imm_size (n); |
6181 | int sign; | |
29b0f896 | 6182 | |
40fb9820 | 6183 | if (i.types[n].bitfield.imm32s |
a7d61044 | 6184 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 6185 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 6186 | sign = 1; |
e205caa7 L |
6187 | else |
6188 | sign = 0; | |
520dc8e8 | 6189 | |
29b0f896 AM |
6190 | p = frag_more (size); |
6191 | reloc_type = reloc (size, 0, sign, i.reloc[n]); | |
f86103b7 | 6192 | |
2bbd9c25 JJ |
6193 | /* This is tough to explain. We end up with this one if we |
6194 | * have operands that look like | |
6195 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
6196 | * obtain the absolute address of the GOT, and it is strongly | |
6197 | * preferable from a performance point of view to avoid using | |
6198 | * a runtime relocation for this. The actual sequence of | |
6199 | * instructions often look something like: | |
6200 | * | |
6201 | * call .L66 | |
6202 | * .L66: | |
6203 | * popl %ebx | |
6204 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
6205 | * | |
6206 | * The call and pop essentially return the absolute address | |
6207 | * of the label .L66 and store it in %ebx. The linker itself | |
6208 | * will ultimately change the first operand of the addl so | |
6209 | * that %ebx points to the GOT, but to keep things simple, the | |
6210 | * .o file must have this operand set so that it generates not | |
6211 | * the absolute address of .L66, but the absolute address of | |
6212 | * itself. This allows the linker itself simply treat a GOTPC | |
6213 | * relocation as asking for a pcrel offset to the GOT to be | |
6214 | * added in, and the addend of the relocation is stored in the | |
6215 | * operand field for the instruction itself. | |
6216 | * | |
6217 | * Our job here is to fix the operand so that it would add | |
6218 | * the correct offset so that %ebx would point to itself. The | |
6219 | * thing that is tricky is that .-.L66 will point to the | |
6220 | * beginning of the instruction, so we need to further modify | |
6221 | * the operand so that it will point to itself. There are | |
6222 | * other cases where you have something like: | |
6223 | * | |
6224 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
6225 | * | |
6226 | * and here no correction would be required. Internally in | |
6227 | * the assembler we treat operands of this form as not being | |
6228 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
6229 | * whether it would simplify matters to do it this way. Who | |
6230 | * knows. In earlier versions of the PIC patches, the | |
6231 | * pcrel_adjust field was used to store the correction, but | |
6232 | * since the expression is not pcrel, I felt it would be | |
6233 | * confusing to do it this way. */ | |
6234 | ||
d6ab8113 | 6235 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
6236 | || reloc_type == BFD_RELOC_X86_64_32S |
6237 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
6238 | && GOT_symbol |
6239 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
6240 | && (i.op[n].imms->X_op == O_symbol | |
6241 | || (i.op[n].imms->X_op == O_add | |
6242 | && ((symbol_get_value_expression | |
6243 | (i.op[n].imms->X_op_symbol)->X_op) | |
6244 | == O_subtract)))) | |
6245 | { | |
2bbd9c25 JJ |
6246 | offsetT add; |
6247 | ||
6248 | if (insn_start_frag == frag_now) | |
6249 | add = (p - frag_now->fr_literal) - insn_start_off; | |
6250 | else | |
6251 | { | |
6252 | fragS *fr; | |
6253 | ||
6254 | add = insn_start_frag->fr_fix - insn_start_off; | |
6255 | for (fr = insn_start_frag->fr_next; | |
6256 | fr && fr != frag_now; fr = fr->fr_next) | |
6257 | add += fr->fr_fix; | |
6258 | add += p - frag_now->fr_literal; | |
6259 | } | |
6260 | ||
4fa24527 | 6261 | if (!object_64bit) |
d6ab8113 | 6262 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 6263 | else if (size == 4) |
d6ab8113 | 6264 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
6265 | else if (size == 8) |
6266 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
2bbd9c25 | 6267 | i.op[n].imms->X_add_number += add; |
29b0f896 | 6268 | } |
29b0f896 AM |
6269 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
6270 | i.op[n].imms, 0, reloc_type); | |
6271 | } | |
6272 | } | |
6273 | } | |
252b5132 RH |
6274 | } |
6275 | \f | |
d182319b JB |
6276 | /* x86_cons_fix_new is called via the expression parsing code when a |
6277 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
6278 | static enum bfd_reloc_code_real got_reloc = NO_RELOC; | |
6279 | static int cons_sign = -1; | |
6280 | ||
6281 | void | |
e3bb37b5 | 6282 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
64e74474 | 6283 | expressionS *exp) |
d182319b JB |
6284 | { |
6285 | enum bfd_reloc_code_real r = reloc (len, 0, cons_sign, got_reloc); | |
6286 | ||
6287 | got_reloc = NO_RELOC; | |
6288 | ||
6289 | #ifdef TE_PE | |
6290 | if (exp->X_op == O_secrel) | |
6291 | { | |
6292 | exp->X_op = O_symbol; | |
6293 | r = BFD_RELOC_32_SECREL; | |
6294 | } | |
6295 | #endif | |
6296 | ||
6297 | fix_new_exp (frag, off, len, exp, 0, r); | |
6298 | } | |
6299 | ||
718ddfc0 JB |
6300 | #if (!defined (OBJ_ELF) && !defined (OBJ_MAYBE_ELF)) || defined (LEX_AT) |
6301 | # define lex_got(reloc, adjust, types) NULL | |
6302 | #else | |
f3c180ae AM |
6303 | /* Parse operands of the form |
6304 | <symbol>@GOTOFF+<nnn> | |
6305 | and similar .plt or .got references. | |
6306 | ||
6307 | If we find one, set up the correct relocation in RELOC and copy the | |
6308 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
6309 | parsing by the calling routine. Return this buffer, and if ADJUST | |
6310 | is non-null set it to the length of the string we removed from the | |
6311 | input line. Otherwise return NULL. */ | |
6312 | static char * | |
3956db08 | 6313 | lex_got (enum bfd_reloc_code_real *reloc, |
64e74474 | 6314 | int *adjust, |
40fb9820 | 6315 | i386_operand_type *types) |
f3c180ae | 6316 | { |
7b81dfbb AJ |
6317 | /* Some of the relocations depend on the size of what field is to |
6318 | be relocated. But in our callers i386_immediate and i386_displacement | |
6319 | we don't yet know the operand size (this will be set by insn | |
6320 | matching). Hence we record the word32 relocation here, | |
6321 | and adjust the reloc according to the real size in reloc(). */ | |
f3c180ae AM |
6322 | static const struct { |
6323 | const char *str; | |
4fa24527 | 6324 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 6325 | const i386_operand_type types64; |
f3c180ae | 6326 | } gotrel[] = { |
4eed87de AM |
6327 | { "PLTOFF", { 0, |
6328 | BFD_RELOC_X86_64_PLTOFF64 }, | |
40fb9820 | 6329 | OPERAND_TYPE_IMM64 }, |
4eed87de AM |
6330 | { "PLT", { BFD_RELOC_386_PLT32, |
6331 | BFD_RELOC_X86_64_PLT32 }, | |
40fb9820 | 6332 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6333 | { "GOTPLT", { 0, |
6334 | BFD_RELOC_X86_64_GOTPLT64 }, | |
40fb9820 | 6335 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
6336 | { "GOTOFF", { BFD_RELOC_386_GOTOFF, |
6337 | BFD_RELOC_X86_64_GOTOFF64 }, | |
40fb9820 | 6338 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
6339 | { "GOTPCREL", { 0, |
6340 | BFD_RELOC_X86_64_GOTPCREL }, | |
40fb9820 | 6341 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6342 | { "TLSGD", { BFD_RELOC_386_TLS_GD, |
6343 | BFD_RELOC_X86_64_TLSGD }, | |
40fb9820 | 6344 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6345 | { "TLSLDM", { BFD_RELOC_386_TLS_LDM, |
6346 | 0 }, | |
40fb9820 | 6347 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6348 | { "TLSLD", { 0, |
6349 | BFD_RELOC_X86_64_TLSLD }, | |
40fb9820 | 6350 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6351 | { "GOTTPOFF", { BFD_RELOC_386_TLS_IE_32, |
6352 | BFD_RELOC_X86_64_GOTTPOFF }, | |
40fb9820 | 6353 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6354 | { "TPOFF", { BFD_RELOC_386_TLS_LE_32, |
6355 | BFD_RELOC_X86_64_TPOFF32 }, | |
40fb9820 | 6356 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, |
4eed87de AM |
6357 | { "NTPOFF", { BFD_RELOC_386_TLS_LE, |
6358 | 0 }, | |
40fb9820 | 6359 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6360 | { "DTPOFF", { BFD_RELOC_386_TLS_LDO_32, |
6361 | BFD_RELOC_X86_64_DTPOFF32 }, | |
40fb9820 L |
6362 | |
6363 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, | |
4eed87de AM |
6364 | { "GOTNTPOFF",{ BFD_RELOC_386_TLS_GOTIE, |
6365 | 0 }, | |
40fb9820 | 6366 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6367 | { "INDNTPOFF",{ BFD_RELOC_386_TLS_IE, |
6368 | 0 }, | |
40fb9820 | 6369 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6370 | { "GOT", { BFD_RELOC_386_GOT32, |
6371 | BFD_RELOC_X86_64_GOT32 }, | |
40fb9820 | 6372 | OPERAND_TYPE_IMM32_32S_64_DISP32 }, |
4eed87de AM |
6373 | { "TLSDESC", { BFD_RELOC_386_TLS_GOTDESC, |
6374 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
40fb9820 | 6375 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6376 | { "TLSCALL", { BFD_RELOC_386_TLS_DESC_CALL, |
6377 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
40fb9820 | 6378 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
f3c180ae AM |
6379 | }; |
6380 | char *cp; | |
6381 | unsigned int j; | |
6382 | ||
718ddfc0 JB |
6383 | if (!IS_ELF) |
6384 | return NULL; | |
6385 | ||
f3c180ae | 6386 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 6387 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
6388 | return NULL; |
6389 | ||
47465058 | 6390 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) |
f3c180ae AM |
6391 | { |
6392 | int len; | |
6393 | ||
6394 | len = strlen (gotrel[j].str); | |
28f81592 | 6395 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 6396 | { |
4fa24527 | 6397 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 6398 | { |
28f81592 AM |
6399 | int first, second; |
6400 | char *tmpbuf, *past_reloc; | |
f3c180ae | 6401 | |
4fa24527 | 6402 | *reloc = gotrel[j].rel[object_64bit]; |
28f81592 AM |
6403 | if (adjust) |
6404 | *adjust = len; | |
f3c180ae | 6405 | |
3956db08 JB |
6406 | if (types) |
6407 | { | |
6408 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
6409 | { |
6410 | types->bitfield.imm32 = 1; | |
6411 | types->bitfield.disp32 = 1; | |
6412 | } | |
3956db08 JB |
6413 | else |
6414 | *types = gotrel[j].types64; | |
6415 | } | |
6416 | ||
f3c180ae AM |
6417 | if (GOT_symbol == NULL) |
6418 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
6419 | ||
28f81592 | 6420 | /* The length of the first part of our input line. */ |
f3c180ae | 6421 | first = cp - input_line_pointer; |
28f81592 AM |
6422 | |
6423 | /* The second part goes from after the reloc token until | |
67c11a9b | 6424 | (and including) an end_of_line char or comma. */ |
28f81592 | 6425 | past_reloc = cp + 1 + len; |
67c11a9b AM |
6426 | cp = past_reloc; |
6427 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
6428 | ++cp; | |
6429 | second = cp + 1 - past_reloc; | |
28f81592 AM |
6430 | |
6431 | /* Allocate and copy string. The trailing NUL shouldn't | |
6432 | be necessary, but be safe. */ | |
6433 | tmpbuf = xmalloc (first + second + 2); | |
f3c180ae | 6434 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
6435 | if (second != 0 && *past_reloc != ' ') |
6436 | /* Replace the relocation token with ' ', so that | |
6437 | errors like foo@GOTOFF1 will be detected. */ | |
6438 | tmpbuf[first++] = ' '; | |
6439 | memcpy (tmpbuf + first, past_reloc, second); | |
6440 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
6441 | return tmpbuf; |
6442 | } | |
6443 | ||
4fa24527 JB |
6444 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
6445 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
6446 | return NULL; |
6447 | } | |
6448 | } | |
6449 | ||
6450 | /* Might be a symbol version string. Don't as_bad here. */ | |
6451 | return NULL; | |
6452 | } | |
6453 | ||
f3c180ae | 6454 | void |
e3bb37b5 | 6455 | x86_cons (expressionS *exp, int size) |
f3c180ae | 6456 | { |
4fa24527 | 6457 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
6458 | { |
6459 | /* Handle @GOTOFF and the like in an expression. */ | |
6460 | char *save; | |
6461 | char *gotfree_input_line; | |
6462 | int adjust; | |
6463 | ||
6464 | save = input_line_pointer; | |
3956db08 | 6465 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
6466 | if (gotfree_input_line) |
6467 | input_line_pointer = gotfree_input_line; | |
6468 | ||
6469 | expression (exp); | |
6470 | ||
6471 | if (gotfree_input_line) | |
6472 | { | |
6473 | /* expression () has merrily parsed up to the end of line, | |
6474 | or a comma - in the wrong buffer. Transfer how far | |
6475 | input_line_pointer has moved to the right buffer. */ | |
6476 | input_line_pointer = (save | |
6477 | + (input_line_pointer - gotfree_input_line) | |
6478 | + adjust); | |
6479 | free (gotfree_input_line); | |
3992d3b7 AM |
6480 | if (exp->X_op == O_constant |
6481 | || exp->X_op == O_absent | |
6482 | || exp->X_op == O_illegal | |
6483 | || exp->X_op == O_register | |
6484 | || exp->X_op == O_big) | |
6485 | { | |
6486 | char c = *input_line_pointer; | |
6487 | *input_line_pointer = 0; | |
6488 | as_bad (_("missing or invalid expression `%s'"), save); | |
6489 | *input_line_pointer = c; | |
6490 | } | |
f3c180ae AM |
6491 | } |
6492 | } | |
6493 | else | |
6494 | expression (exp); | |
6495 | } | |
6496 | #endif | |
6497 | ||
d182319b | 6498 | static void signed_cons (int size) |
6482c264 | 6499 | { |
d182319b JB |
6500 | if (flag_code == CODE_64BIT) |
6501 | cons_sign = 1; | |
6502 | cons (size); | |
6503 | cons_sign = -1; | |
6482c264 NC |
6504 | } |
6505 | ||
d182319b | 6506 | #ifdef TE_PE |
6482c264 NC |
6507 | static void |
6508 | pe_directive_secrel (dummy) | |
6509 | int dummy ATTRIBUTE_UNUSED; | |
6510 | { | |
6511 | expressionS exp; | |
6512 | ||
6513 | do | |
6514 | { | |
6515 | expression (&exp); | |
6516 | if (exp.X_op == O_symbol) | |
6517 | exp.X_op = O_secrel; | |
6518 | ||
6519 | emit_expr (&exp, 4); | |
6520 | } | |
6521 | while (*input_line_pointer++ == ','); | |
6522 | ||
6523 | input_line_pointer--; | |
6524 | demand_empty_rest_of_line (); | |
6525 | } | |
6482c264 NC |
6526 | #endif |
6527 | ||
252b5132 | 6528 | static int |
70e41ade | 6529 | i386_immediate (char *imm_start) |
252b5132 RH |
6530 | { |
6531 | char *save_input_line_pointer; | |
f3c180ae | 6532 | char *gotfree_input_line; |
252b5132 | 6533 | segT exp_seg = 0; |
47926f60 | 6534 | expressionS *exp; |
40fb9820 L |
6535 | i386_operand_type types; |
6536 | ||
0dfbf9d7 | 6537 | operand_type_set (&types, ~0); |
252b5132 RH |
6538 | |
6539 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
6540 | { | |
31b2323c L |
6541 | as_bad (_("at most %d immediate operands are allowed"), |
6542 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
6543 | return 0; |
6544 | } | |
6545 | ||
6546 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 6547 | i.op[this_operand].imms = exp; |
252b5132 RH |
6548 | |
6549 | if (is_space_char (*imm_start)) | |
6550 | ++imm_start; | |
6551 | ||
6552 | save_input_line_pointer = input_line_pointer; | |
6553 | input_line_pointer = imm_start; | |
6554 | ||
3956db08 | 6555 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
6556 | if (gotfree_input_line) |
6557 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
6558 | |
6559 | exp_seg = expression (exp); | |
6560 | ||
83183c0c | 6561 | SKIP_WHITESPACE (); |
252b5132 | 6562 | if (*input_line_pointer) |
f3c180ae | 6563 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
6564 | |
6565 | input_line_pointer = save_input_line_pointer; | |
f3c180ae AM |
6566 | if (gotfree_input_line) |
6567 | free (gotfree_input_line); | |
252b5132 | 6568 | |
3992d3b7 AM |
6569 | if (exp->X_op == O_absent |
6570 | || exp->X_op == O_illegal | |
6571 | || exp->X_op == O_big | |
6572 | || (gotfree_input_line | |
6573 | && (exp->X_op == O_constant | |
6574 | || exp->X_op == O_register))) | |
252b5132 | 6575 | { |
3992d3b7 | 6576 | as_bad (_("missing or invalid immediate expression `%s'"), |
24eab124 | 6577 | imm_start); |
3992d3b7 | 6578 | return 0; |
252b5132 | 6579 | } |
3e73aa7c | 6580 | else if (exp->X_op == O_constant) |
252b5132 | 6581 | { |
47926f60 | 6582 | /* Size it properly later. */ |
40fb9820 | 6583 | i.types[this_operand].bitfield.imm64 = 1; |
3e73aa7c | 6584 | /* If BFD64, sign extend val. */ |
4eed87de AM |
6585 | if (!use_rela_relocations |
6586 | && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0) | |
6587 | exp->X_add_number | |
6588 | = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
252b5132 | 6589 | } |
4c63da97 | 6590 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 6591 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 6592 | && exp_seg != absolute_section |
47926f60 | 6593 | && exp_seg != text_section |
24eab124 AM |
6594 | && exp_seg != data_section |
6595 | && exp_seg != bss_section | |
6596 | && exp_seg != undefined_section | |
f86103b7 | 6597 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 6598 | { |
d0b47220 | 6599 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
6600 | return 0; |
6601 | } | |
6602 | #endif | |
bb8f5920 L |
6603 | else if (!intel_syntax && exp->X_op == O_register) |
6604 | { | |
6605 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
6606 | return 0; | |
6607 | } | |
252b5132 RH |
6608 | else |
6609 | { | |
6610 | /* This is an address. The size of the address will be | |
24eab124 | 6611 | determined later, depending on destination register, |
3e73aa7c | 6612 | suffix, or the default for the section. */ |
40fb9820 L |
6613 | i.types[this_operand].bitfield.imm8 = 1; |
6614 | i.types[this_operand].bitfield.imm16 = 1; | |
6615 | i.types[this_operand].bitfield.imm32 = 1; | |
6616 | i.types[this_operand].bitfield.imm32s = 1; | |
6617 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
6618 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
6619 | types); | |
252b5132 RH |
6620 | } |
6621 | ||
6622 | return 1; | |
6623 | } | |
6624 | ||
551c1ca1 | 6625 | static char * |
e3bb37b5 | 6626 | i386_scale (char *scale) |
252b5132 | 6627 | { |
551c1ca1 AM |
6628 | offsetT val; |
6629 | char *save = input_line_pointer; | |
252b5132 | 6630 | |
551c1ca1 AM |
6631 | input_line_pointer = scale; |
6632 | val = get_absolute_expression (); | |
6633 | ||
6634 | switch (val) | |
252b5132 | 6635 | { |
551c1ca1 | 6636 | case 1: |
252b5132 RH |
6637 | i.log2_scale_factor = 0; |
6638 | break; | |
551c1ca1 | 6639 | case 2: |
252b5132 RH |
6640 | i.log2_scale_factor = 1; |
6641 | break; | |
551c1ca1 | 6642 | case 4: |
252b5132 RH |
6643 | i.log2_scale_factor = 2; |
6644 | break; | |
551c1ca1 | 6645 | case 8: |
252b5132 RH |
6646 | i.log2_scale_factor = 3; |
6647 | break; | |
6648 | default: | |
a724f0f4 JB |
6649 | { |
6650 | char sep = *input_line_pointer; | |
6651 | ||
6652 | *input_line_pointer = '\0'; | |
6653 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
6654 | scale); | |
6655 | *input_line_pointer = sep; | |
6656 | input_line_pointer = save; | |
6657 | return NULL; | |
6658 | } | |
252b5132 | 6659 | } |
29b0f896 | 6660 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
6661 | { |
6662 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 6663 | 1 << i.log2_scale_factor); |
252b5132 | 6664 | i.log2_scale_factor = 0; |
252b5132 | 6665 | } |
551c1ca1 AM |
6666 | scale = input_line_pointer; |
6667 | input_line_pointer = save; | |
6668 | return scale; | |
252b5132 RH |
6669 | } |
6670 | ||
252b5132 | 6671 | static int |
e3bb37b5 | 6672 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 6673 | { |
29b0f896 | 6674 | expressionS *exp; |
252b5132 RH |
6675 | segT exp_seg = 0; |
6676 | char *save_input_line_pointer; | |
f3c180ae | 6677 | char *gotfree_input_line; |
40fb9820 L |
6678 | int override; |
6679 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 6680 | int ret; |
252b5132 | 6681 | |
31b2323c L |
6682 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
6683 | { | |
6684 | as_bad (_("at most %d displacement operands are allowed"), | |
6685 | MAX_MEMORY_OPERANDS); | |
6686 | return 0; | |
6687 | } | |
6688 | ||
0dfbf9d7 | 6689 | operand_type_set (&bigdisp, 0); |
40fb9820 L |
6690 | if ((i.types[this_operand].bitfield.jumpabsolute) |
6691 | || (!current_templates->start->opcode_modifier.jump | |
6692 | && !current_templates->start->opcode_modifier.jumpdword)) | |
e05278af | 6693 | { |
40fb9820 | 6694 | bigdisp.bitfield.disp32 = 1; |
e05278af | 6695 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
6696 | if (flag_code == CODE_64BIT) |
6697 | { | |
6698 | if (!override) | |
6699 | { | |
6700 | bigdisp.bitfield.disp32s = 1; | |
6701 | bigdisp.bitfield.disp64 = 1; | |
6702 | } | |
6703 | } | |
6704 | else if ((flag_code == CODE_16BIT) ^ override) | |
6705 | { | |
6706 | bigdisp.bitfield.disp32 = 0; | |
6707 | bigdisp.bitfield.disp16 = 1; | |
6708 | } | |
e05278af JB |
6709 | } |
6710 | else | |
6711 | { | |
6712 | /* For PC-relative branches, the width of the displacement | |
6713 | is dependent upon data size, not address size. */ | |
e05278af | 6714 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
6715 | if (flag_code == CODE_64BIT) |
6716 | { | |
6717 | if (override || i.suffix == WORD_MNEM_SUFFIX) | |
6718 | bigdisp.bitfield.disp16 = 1; | |
6719 | else | |
6720 | { | |
6721 | bigdisp.bitfield.disp32 = 1; | |
6722 | bigdisp.bitfield.disp32s = 1; | |
6723 | } | |
6724 | } | |
6725 | else | |
e05278af JB |
6726 | { |
6727 | if (!override) | |
6728 | override = (i.suffix == (flag_code != CODE_16BIT | |
6729 | ? WORD_MNEM_SUFFIX | |
6730 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
6731 | bigdisp.bitfield.disp32 = 1; |
6732 | if ((flag_code == CODE_16BIT) ^ override) | |
6733 | { | |
6734 | bigdisp.bitfield.disp32 = 0; | |
6735 | bigdisp.bitfield.disp16 = 1; | |
6736 | } | |
e05278af | 6737 | } |
e05278af | 6738 | } |
c6fb90c8 L |
6739 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
6740 | bigdisp); | |
252b5132 RH |
6741 | |
6742 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 6743 | i.op[this_operand].disps = exp; |
252b5132 RH |
6744 | i.disp_operands++; |
6745 | save_input_line_pointer = input_line_pointer; | |
6746 | input_line_pointer = disp_start; | |
6747 | END_STRING_AND_SAVE (disp_end); | |
6748 | ||
6749 | #ifndef GCC_ASM_O_HACK | |
6750 | #define GCC_ASM_O_HACK 0 | |
6751 | #endif | |
6752 | #if GCC_ASM_O_HACK | |
6753 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 6754 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 6755 | && displacement_string_end[-1] == '+') |
252b5132 RH |
6756 | { |
6757 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
6758 | constraint within gcc asm statements. |
6759 | For instance: | |
6760 | ||
6761 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
6762 | __asm__ __volatile__ ( \ | |
6763 | "movw %w2,%0\n\t" \ | |
6764 | "movw %w1,2+%0\n\t" \ | |
6765 | "rorl $16,%1\n\t" \ | |
6766 | "movb %b1,4+%0\n\t" \ | |
6767 | "movb %4,5+%0\n\t" \ | |
6768 | "movb $0,6+%0\n\t" \ | |
6769 | "movb %h1,7+%0\n\t" \ | |
6770 | "rorl $16,%1" \ | |
6771 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
6772 | ||
6773 | This works great except that the output assembler ends | |
6774 | up looking a bit weird if it turns out that there is | |
6775 | no offset. You end up producing code that looks like: | |
6776 | ||
6777 | #APP | |
6778 | movw $235,(%eax) | |
6779 | movw %dx,2+(%eax) | |
6780 | rorl $16,%edx | |
6781 | movb %dl,4+(%eax) | |
6782 | movb $137,5+(%eax) | |
6783 | movb $0,6+(%eax) | |
6784 | movb %dh,7+(%eax) | |
6785 | rorl $16,%edx | |
6786 | #NO_APP | |
6787 | ||
47926f60 | 6788 | So here we provide the missing zero. */ |
24eab124 AM |
6789 | |
6790 | *displacement_string_end = '0'; | |
252b5132 RH |
6791 | } |
6792 | #endif | |
3956db08 | 6793 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
6794 | if (gotfree_input_line) |
6795 | input_line_pointer = gotfree_input_line; | |
252b5132 | 6796 | |
24eab124 | 6797 | exp_seg = expression (exp); |
252b5132 | 6798 | |
636c26b0 AM |
6799 | SKIP_WHITESPACE (); |
6800 | if (*input_line_pointer) | |
6801 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
6802 | #if GCC_ASM_O_HACK | |
6803 | RESTORE_END_STRING (disp_end + 1); | |
6804 | #endif | |
636c26b0 | 6805 | input_line_pointer = save_input_line_pointer; |
636c26b0 AM |
6806 | if (gotfree_input_line) |
6807 | free (gotfree_input_line); | |
3992d3b7 | 6808 | ret = 1; |
636c26b0 | 6809 | |
24eab124 AM |
6810 | /* We do this to make sure that the section symbol is in |
6811 | the symbol table. We will ultimately change the relocation | |
47926f60 | 6812 | to be relative to the beginning of the section. */ |
1ae12ab7 | 6813 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
6814 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
6815 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 6816 | { |
636c26b0 | 6817 | if (exp->X_op != O_symbol) |
3992d3b7 | 6818 | goto inv_disp; |
636c26b0 | 6819 | |
e5cb08ac | 6820 | if (S_IS_LOCAL (exp->X_add_symbol) |
24eab124 AM |
6821 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section) |
6822 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); | |
24eab124 AM |
6823 | exp->X_op = O_subtract; |
6824 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 6825 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 6826 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
6827 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
6828 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 6829 | else |
29b0f896 | 6830 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 6831 | } |
252b5132 | 6832 | |
3992d3b7 AM |
6833 | else if (exp->X_op == O_absent |
6834 | || exp->X_op == O_illegal | |
6835 | || exp->X_op == O_big | |
6836 | || (gotfree_input_line | |
6837 | && (exp->X_op == O_constant | |
6838 | || exp->X_op == O_register))) | |
2daf4fd8 | 6839 | { |
3992d3b7 AM |
6840 | inv_disp: |
6841 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 6842 | disp_start); |
3992d3b7 | 6843 | ret = 0; |
2daf4fd8 AM |
6844 | } |
6845 | ||
4c63da97 | 6846 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
3992d3b7 AM |
6847 | else if (exp->X_op != O_constant |
6848 | && OUTPUT_FLAVOR == bfd_target_aout_flavour | |
6849 | && exp_seg != absolute_section | |
6850 | && exp_seg != text_section | |
6851 | && exp_seg != data_section | |
6852 | && exp_seg != bss_section | |
6853 | && exp_seg != undefined_section | |
6854 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 6855 | { |
d0b47220 | 6856 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 6857 | ret = 0; |
24eab124 | 6858 | } |
252b5132 | 6859 | #endif |
3956db08 | 6860 | |
3992d3b7 AM |
6861 | RESTORE_END_STRING (disp_end); |
6862 | ||
40fb9820 L |
6863 | /* Check if this is a displacement only operand. */ |
6864 | bigdisp = i.types[this_operand]; | |
6865 | bigdisp.bitfield.disp8 = 0; | |
6866 | bigdisp.bitfield.disp16 = 0; | |
6867 | bigdisp.bitfield.disp32 = 0; | |
6868 | bigdisp.bitfield.disp32s = 0; | |
6869 | bigdisp.bitfield.disp64 = 0; | |
0dfbf9d7 | 6870 | if (operand_type_all_zero (&bigdisp)) |
c6fb90c8 L |
6871 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
6872 | types); | |
3956db08 | 6873 | |
3992d3b7 | 6874 | return ret; |
252b5132 RH |
6875 | } |
6876 | ||
eecb386c | 6877 | /* Make sure the memory operand we've been dealt is valid. |
47926f60 KH |
6878 | Return 1 on success, 0 on a failure. */ |
6879 | ||
252b5132 | 6880 | static int |
e3bb37b5 | 6881 | i386_index_check (const char *operand_string) |
252b5132 | 6882 | { |
3e73aa7c | 6883 | int ok; |
fc0763e6 | 6884 | const char *kind = "base/index"; |
24eab124 | 6885 | #if INFER_ADDR_PREFIX |
eecb386c AM |
6886 | int fudged = 0; |
6887 | ||
24eab124 AM |
6888 | tryprefix: |
6889 | #endif | |
3e73aa7c | 6890 | ok = 1; |
fc0763e6 JB |
6891 | if (current_templates->start->opcode_modifier.isstring |
6892 | && !current_templates->start->opcode_modifier.immext | |
6893 | && (current_templates->end[-1].opcode_modifier.isstring | |
6894 | || i.mem_operands)) | |
6895 | { | |
6896 | /* Memory operands of string insns are special in that they only allow | |
6897 | a single register (rDI, rSI, or rBX) as their memory address. */ | |
6898 | unsigned int expected; | |
6899 | ||
6900 | kind = "string address"; | |
6901 | ||
6902 | if (current_templates->start->opcode_modifier.w) | |
6903 | { | |
6904 | i386_operand_type type = current_templates->end[-1].operand_types[0]; | |
6905 | ||
6906 | if (!type.bitfield.baseindex | |
6907 | || ((!i.mem_operands != !intel_syntax) | |
6908 | && current_templates->end[-1].operand_types[1] | |
6909 | .bitfield.baseindex)) | |
6910 | type = current_templates->end[-1].operand_types[1]; | |
6911 | expected = type.bitfield.esseg ? 7 /* rDI */ : 6 /* rSI */; | |
6912 | } | |
6913 | else | |
6914 | expected = 3 /* rBX */; | |
6915 | ||
6916 | if (!i.base_reg || i.index_reg | |
6917 | || operand_type_check (i.types[this_operand], disp)) | |
6918 | ok = -1; | |
6919 | else if (!(flag_code == CODE_64BIT | |
6920 | ? i.prefix[ADDR_PREFIX] | |
6921 | ? i.base_reg->reg_type.bitfield.reg32 | |
6922 | : i.base_reg->reg_type.bitfield.reg64 | |
6923 | : (flag_code == CODE_16BIT) ^ !i.prefix[ADDR_PREFIX] | |
6924 | ? i.base_reg->reg_type.bitfield.reg32 | |
6925 | : i.base_reg->reg_type.bitfield.reg16)) | |
6926 | ok = 0; | |
6927 | else if (i.base_reg->reg_num != expected) | |
6928 | ok = -1; | |
6929 | ||
6930 | if (ok < 0) | |
6931 | { | |
6932 | unsigned int j; | |
6933 | ||
6934 | for (j = 0; j < i386_regtab_size; ++j) | |
6935 | if ((flag_code == CODE_64BIT | |
6936 | ? i.prefix[ADDR_PREFIX] | |
6937 | ? i386_regtab[j].reg_type.bitfield.reg32 | |
6938 | : i386_regtab[j].reg_type.bitfield.reg64 | |
6939 | : (flag_code == CODE_16BIT) ^ !i.prefix[ADDR_PREFIX] | |
6940 | ? i386_regtab[j].reg_type.bitfield.reg32 | |
6941 | : i386_regtab[j].reg_type.bitfield.reg16) | |
6942 | && i386_regtab[j].reg_num == expected) | |
6943 | break; | |
6944 | assert (j < i386_regtab_size); | |
6945 | as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"), | |
6946 | operand_string, | |
6947 | intel_syntax ? '[' : '(', | |
6948 | register_prefix, | |
6949 | i386_regtab[j].reg_name, | |
6950 | intel_syntax ? ']' : ')'); | |
6951 | ok = 1; | |
6952 | } | |
6953 | } | |
6954 | else if (flag_code == CODE_64BIT) | |
64e74474 | 6955 | { |
64e74474 | 6956 | if ((i.base_reg |
40fb9820 L |
6957 | && ((i.prefix[ADDR_PREFIX] == 0 |
6958 | && !i.base_reg->reg_type.bitfield.reg64) | |
6959 | || (i.prefix[ADDR_PREFIX] | |
6960 | && !i.base_reg->reg_type.bitfield.reg32)) | |
6961 | && (i.index_reg | |
9a04903e JB |
6962 | || i.base_reg->reg_num != |
6963 | (i.prefix[ADDR_PREFIX] == 0 ? RegRip : RegEip))) | |
64e74474 | 6964 | || (i.index_reg |
40fb9820 L |
6965 | && (!i.index_reg->reg_type.bitfield.baseindex |
6966 | || (i.prefix[ADDR_PREFIX] == 0 | |
db51cc60 L |
6967 | && i.index_reg->reg_num != RegRiz |
6968 | && !i.index_reg->reg_type.bitfield.reg64 | |
6969 | ) | |
40fb9820 | 6970 | || (i.prefix[ADDR_PREFIX] |
db51cc60 | 6971 | && i.index_reg->reg_num != RegEiz |
40fb9820 | 6972 | && !i.index_reg->reg_type.bitfield.reg32)))) |
64e74474 | 6973 | ok = 0; |
3e73aa7c JH |
6974 | } |
6975 | else | |
6976 | { | |
6977 | if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) | |
6978 | { | |
6979 | /* 16bit checks. */ | |
6980 | if ((i.base_reg | |
40fb9820 L |
6981 | && (!i.base_reg->reg_type.bitfield.reg16 |
6982 | || !i.base_reg->reg_type.bitfield.baseindex)) | |
3e73aa7c | 6983 | || (i.index_reg |
40fb9820 L |
6984 | && (!i.index_reg->reg_type.bitfield.reg16 |
6985 | || !i.index_reg->reg_type.bitfield.baseindex | |
29b0f896 AM |
6986 | || !(i.base_reg |
6987 | && i.base_reg->reg_num < 6 | |
6988 | && i.index_reg->reg_num >= 6 | |
6989 | && i.log2_scale_factor == 0)))) | |
3e73aa7c JH |
6990 | ok = 0; |
6991 | } | |
6992 | else | |
e5cb08ac | 6993 | { |
3e73aa7c JH |
6994 | /* 32bit checks. */ |
6995 | if ((i.base_reg | |
40fb9820 | 6996 | && !i.base_reg->reg_type.bitfield.reg32) |
3e73aa7c | 6997 | || (i.index_reg |
db51cc60 L |
6998 | && ((!i.index_reg->reg_type.bitfield.reg32 |
6999 | && i.index_reg->reg_num != RegEiz) | |
40fb9820 | 7000 | || !i.index_reg->reg_type.bitfield.baseindex))) |
e5cb08ac | 7001 | ok = 0; |
3e73aa7c JH |
7002 | } |
7003 | } | |
7004 | if (!ok) | |
24eab124 AM |
7005 | { |
7006 | #if INFER_ADDR_PREFIX | |
fc0763e6 | 7007 | if (!i.mem_operands && !i.prefix[ADDR_PREFIX]) |
24eab124 AM |
7008 | { |
7009 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
7010 | i.prefixes += 1; | |
b23bac36 AM |
7011 | /* Change the size of any displacement too. At most one of |
7012 | Disp16 or Disp32 is set. | |
7013 | FIXME. There doesn't seem to be any real need for separate | |
7014 | Disp16 and Disp32 flags. The same goes for Imm16 and Imm32. | |
47926f60 | 7015 | Removing them would probably clean up the code quite a lot. */ |
4eed87de | 7016 | if (flag_code != CODE_64BIT |
40fb9820 L |
7017 | && (i.types[this_operand].bitfield.disp16 |
7018 | || i.types[this_operand].bitfield.disp32)) | |
7019 | i.types[this_operand] | |
c6fb90c8 | 7020 | = operand_type_xor (i.types[this_operand], disp16_32); |
eecb386c | 7021 | fudged = 1; |
24eab124 AM |
7022 | goto tryprefix; |
7023 | } | |
eecb386c | 7024 | if (fudged) |
fc0763e6 JB |
7025 | as_bad (_("`%s' is not a valid %s expression"), |
7026 | operand_string, | |
7027 | kind); | |
eecb386c | 7028 | else |
c388dee8 | 7029 | #endif |
fc0763e6 | 7030 | as_bad (_("`%s' is not a valid %s-bit %s expression"), |
eecb386c | 7031 | operand_string, |
fc0763e6 JB |
7032 | flag_code_names[i.prefix[ADDR_PREFIX] |
7033 | ? flag_code == CODE_32BIT | |
7034 | ? CODE_16BIT | |
7035 | : CODE_32BIT | |
7036 | : flag_code], | |
7037 | kind); | |
24eab124 | 7038 | } |
20f0a1fc | 7039 | return ok; |
24eab124 | 7040 | } |
252b5132 | 7041 | |
fc0763e6 | 7042 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero |
47926f60 | 7043 | on error. */ |
252b5132 | 7044 | |
252b5132 | 7045 | static int |
a7619375 | 7046 | i386_att_operand (char *operand_string) |
252b5132 | 7047 | { |
af6bdddf AM |
7048 | const reg_entry *r; |
7049 | char *end_op; | |
24eab124 | 7050 | char *op_string = operand_string; |
252b5132 | 7051 | |
24eab124 | 7052 | if (is_space_char (*op_string)) |
252b5132 RH |
7053 | ++op_string; |
7054 | ||
24eab124 | 7055 | /* We check for an absolute prefix (differentiating, |
47926f60 | 7056 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
7057 | if (*op_string == ABSOLUTE_PREFIX) |
7058 | { | |
7059 | ++op_string; | |
7060 | if (is_space_char (*op_string)) | |
7061 | ++op_string; | |
40fb9820 | 7062 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 | 7063 | } |
252b5132 | 7064 | |
47926f60 | 7065 | /* Check if operand is a register. */ |
4d1bb795 | 7066 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 7067 | { |
40fb9820 L |
7068 | i386_operand_type temp; |
7069 | ||
24eab124 AM |
7070 | /* Check for a segment override by searching for ':' after a |
7071 | segment register. */ | |
7072 | op_string = end_op; | |
7073 | if (is_space_char (*op_string)) | |
7074 | ++op_string; | |
40fb9820 L |
7075 | if (*op_string == ':' |
7076 | && (r->reg_type.bitfield.sreg2 | |
7077 | || r->reg_type.bitfield.sreg3)) | |
24eab124 AM |
7078 | { |
7079 | switch (r->reg_num) | |
7080 | { | |
7081 | case 0: | |
7082 | i.seg[i.mem_operands] = &es; | |
7083 | break; | |
7084 | case 1: | |
7085 | i.seg[i.mem_operands] = &cs; | |
7086 | break; | |
7087 | case 2: | |
7088 | i.seg[i.mem_operands] = &ss; | |
7089 | break; | |
7090 | case 3: | |
7091 | i.seg[i.mem_operands] = &ds; | |
7092 | break; | |
7093 | case 4: | |
7094 | i.seg[i.mem_operands] = &fs; | |
7095 | break; | |
7096 | case 5: | |
7097 | i.seg[i.mem_operands] = &gs; | |
7098 | break; | |
7099 | } | |
252b5132 | 7100 | |
24eab124 | 7101 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
7102 | ++op_string; |
7103 | if (is_space_char (*op_string)) | |
24eab124 | 7104 | ++op_string; |
252b5132 | 7105 | |
24eab124 AM |
7106 | if (!is_digit_char (*op_string) |
7107 | && !is_identifier_char (*op_string) | |
7108 | && *op_string != '(' | |
7109 | && *op_string != ABSOLUTE_PREFIX) | |
7110 | { | |
7111 | as_bad (_("bad memory operand `%s'"), op_string); | |
7112 | return 0; | |
7113 | } | |
47926f60 | 7114 | /* Handle case of %es:*foo. */ |
24eab124 AM |
7115 | if (*op_string == ABSOLUTE_PREFIX) |
7116 | { | |
7117 | ++op_string; | |
7118 | if (is_space_char (*op_string)) | |
7119 | ++op_string; | |
40fb9820 | 7120 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 AM |
7121 | } |
7122 | goto do_memory_reference; | |
7123 | } | |
7124 | if (*op_string) | |
7125 | { | |
d0b47220 | 7126 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
7127 | return 0; |
7128 | } | |
40fb9820 L |
7129 | temp = r->reg_type; |
7130 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
7131 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
7132 | temp); | |
7d5e4556 | 7133 | i.types[this_operand].bitfield.unspecified = 0; |
520dc8e8 | 7134 | i.op[this_operand].regs = r; |
24eab124 AM |
7135 | i.reg_operands++; |
7136 | } | |
af6bdddf AM |
7137 | else if (*op_string == REGISTER_PREFIX) |
7138 | { | |
7139 | as_bad (_("bad register name `%s'"), op_string); | |
7140 | return 0; | |
7141 | } | |
24eab124 | 7142 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 7143 | { |
24eab124 | 7144 | ++op_string; |
40fb9820 | 7145 | if (i.types[this_operand].bitfield.jumpabsolute) |
24eab124 | 7146 | { |
d0b47220 | 7147 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
7148 | return 0; |
7149 | } | |
7150 | if (!i386_immediate (op_string)) | |
7151 | return 0; | |
7152 | } | |
7153 | else if (is_digit_char (*op_string) | |
7154 | || is_identifier_char (*op_string) | |
e5cb08ac | 7155 | || *op_string == '(') |
24eab124 | 7156 | { |
47926f60 | 7157 | /* This is a memory reference of some sort. */ |
af6bdddf | 7158 | char *base_string; |
252b5132 | 7159 | |
47926f60 | 7160 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
7161 | char *displacement_string_start; |
7162 | char *displacement_string_end; | |
252b5132 | 7163 | |
24eab124 | 7164 | do_memory_reference: |
24eab124 | 7165 | if ((i.mem_operands == 1 |
40fb9820 | 7166 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
7167 | || i.mem_operands == 2) |
7168 | { | |
7169 | as_bad (_("too many memory references for `%s'"), | |
7170 | current_templates->start->name); | |
7171 | return 0; | |
7172 | } | |
252b5132 | 7173 | |
24eab124 AM |
7174 | /* Check for base index form. We detect the base index form by |
7175 | looking for an ')' at the end of the operand, searching | |
7176 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
7177 | after the '('. */ | |
af6bdddf | 7178 | base_string = op_string + strlen (op_string); |
c3332e24 | 7179 | |
af6bdddf AM |
7180 | --base_string; |
7181 | if (is_space_char (*base_string)) | |
7182 | --base_string; | |
252b5132 | 7183 | |
47926f60 | 7184 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
7185 | displacement_string_start = op_string; |
7186 | displacement_string_end = base_string + 1; | |
252b5132 | 7187 | |
24eab124 AM |
7188 | if (*base_string == ')') |
7189 | { | |
af6bdddf | 7190 | char *temp_string; |
24eab124 AM |
7191 | unsigned int parens_balanced = 1; |
7192 | /* We've already checked that the number of left & right ()'s are | |
47926f60 | 7193 | equal, so this loop will not be infinite. */ |
24eab124 AM |
7194 | do |
7195 | { | |
7196 | base_string--; | |
7197 | if (*base_string == ')') | |
7198 | parens_balanced++; | |
7199 | if (*base_string == '(') | |
7200 | parens_balanced--; | |
7201 | } | |
7202 | while (parens_balanced); | |
c3332e24 | 7203 | |
af6bdddf | 7204 | temp_string = base_string; |
c3332e24 | 7205 | |
24eab124 | 7206 | /* Skip past '(' and whitespace. */ |
252b5132 RH |
7207 | ++base_string; |
7208 | if (is_space_char (*base_string)) | |
24eab124 | 7209 | ++base_string; |
252b5132 | 7210 | |
af6bdddf | 7211 | if (*base_string == ',' |
4eed87de AM |
7212 | || ((i.base_reg = parse_register (base_string, &end_op)) |
7213 | != NULL)) | |
252b5132 | 7214 | { |
af6bdddf | 7215 | displacement_string_end = temp_string; |
252b5132 | 7216 | |
40fb9820 | 7217 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 7218 | |
af6bdddf | 7219 | if (i.base_reg) |
24eab124 | 7220 | { |
24eab124 AM |
7221 | base_string = end_op; |
7222 | if (is_space_char (*base_string)) | |
7223 | ++base_string; | |
af6bdddf AM |
7224 | } |
7225 | ||
7226 | /* There may be an index reg or scale factor here. */ | |
7227 | if (*base_string == ',') | |
7228 | { | |
7229 | ++base_string; | |
7230 | if (is_space_char (*base_string)) | |
7231 | ++base_string; | |
7232 | ||
4eed87de AM |
7233 | if ((i.index_reg = parse_register (base_string, &end_op)) |
7234 | != NULL) | |
24eab124 | 7235 | { |
af6bdddf | 7236 | base_string = end_op; |
24eab124 AM |
7237 | if (is_space_char (*base_string)) |
7238 | ++base_string; | |
af6bdddf AM |
7239 | if (*base_string == ',') |
7240 | { | |
7241 | ++base_string; | |
7242 | if (is_space_char (*base_string)) | |
7243 | ++base_string; | |
7244 | } | |
e5cb08ac | 7245 | else if (*base_string != ')') |
af6bdddf | 7246 | { |
4eed87de AM |
7247 | as_bad (_("expecting `,' or `)' " |
7248 | "after index register in `%s'"), | |
af6bdddf AM |
7249 | operand_string); |
7250 | return 0; | |
7251 | } | |
24eab124 | 7252 | } |
af6bdddf | 7253 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 7254 | { |
af6bdddf | 7255 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
7256 | return 0; |
7257 | } | |
252b5132 | 7258 | |
47926f60 | 7259 | /* Check for scale factor. */ |
551c1ca1 | 7260 | if (*base_string != ')') |
af6bdddf | 7261 | { |
551c1ca1 AM |
7262 | char *end_scale = i386_scale (base_string); |
7263 | ||
7264 | if (!end_scale) | |
af6bdddf | 7265 | return 0; |
24eab124 | 7266 | |
551c1ca1 | 7267 | base_string = end_scale; |
af6bdddf AM |
7268 | if (is_space_char (*base_string)) |
7269 | ++base_string; | |
7270 | if (*base_string != ')') | |
7271 | { | |
4eed87de AM |
7272 | as_bad (_("expecting `)' " |
7273 | "after scale factor in `%s'"), | |
af6bdddf AM |
7274 | operand_string); |
7275 | return 0; | |
7276 | } | |
7277 | } | |
7278 | else if (!i.index_reg) | |
24eab124 | 7279 | { |
4eed87de AM |
7280 | as_bad (_("expecting index register or scale factor " |
7281 | "after `,'; got '%c'"), | |
af6bdddf | 7282 | *base_string); |
24eab124 AM |
7283 | return 0; |
7284 | } | |
7285 | } | |
af6bdddf | 7286 | else if (*base_string != ')') |
24eab124 | 7287 | { |
4eed87de AM |
7288 | as_bad (_("expecting `,' or `)' " |
7289 | "after base register in `%s'"), | |
af6bdddf | 7290 | operand_string); |
24eab124 AM |
7291 | return 0; |
7292 | } | |
c3332e24 | 7293 | } |
af6bdddf | 7294 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 7295 | { |
af6bdddf | 7296 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 7297 | return 0; |
c3332e24 | 7298 | } |
24eab124 AM |
7299 | } |
7300 | ||
7301 | /* If there's an expression beginning the operand, parse it, | |
7302 | assuming displacement_string_start and | |
7303 | displacement_string_end are meaningful. */ | |
7304 | if (displacement_string_start != displacement_string_end) | |
7305 | { | |
7306 | if (!i386_displacement (displacement_string_start, | |
7307 | displacement_string_end)) | |
7308 | return 0; | |
7309 | } | |
7310 | ||
7311 | /* Special case for (%dx) while doing input/output op. */ | |
7312 | if (i.base_reg | |
0dfbf9d7 L |
7313 | && operand_type_equal (&i.base_reg->reg_type, |
7314 | ®16_inoutportreg) | |
24eab124 AM |
7315 | && i.index_reg == 0 |
7316 | && i.log2_scale_factor == 0 | |
7317 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 7318 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 7319 | { |
65da13b5 | 7320 | i.types[this_operand] = inoutportreg; |
24eab124 AM |
7321 | return 1; |
7322 | } | |
7323 | ||
eecb386c AM |
7324 | if (i386_index_check (operand_string) == 0) |
7325 | return 0; | |
5c07affc | 7326 | i.types[this_operand].bitfield.mem = 1; |
24eab124 AM |
7327 | i.mem_operands++; |
7328 | } | |
7329 | else | |
ce8a8b2f AM |
7330 | { |
7331 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
7332 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
7333 | output_invalid (*op_string), | |
7334 | this_operand + 1, | |
7335 | op_string); | |
7336 | return 0; | |
7337 | } | |
47926f60 | 7338 | return 1; /* Normal return. */ |
252b5132 RH |
7339 | } |
7340 | \f | |
ee7fcc42 AM |
7341 | /* md_estimate_size_before_relax() |
7342 | ||
7343 | Called just before relax() for rs_machine_dependent frags. The x86 | |
7344 | assembler uses these frags to handle variable size jump | |
7345 | instructions. | |
7346 | ||
7347 | Any symbol that is now undefined will not become defined. | |
7348 | Return the correct fr_subtype in the frag. | |
7349 | Return the initial "guess for variable size of frag" to caller. | |
7350 | The guess is actually the growth beyond the fixed part. Whatever | |
7351 | we do to grow the fixed or variable part contributes to our | |
7352 | returned value. */ | |
7353 | ||
252b5132 RH |
7354 | int |
7355 | md_estimate_size_before_relax (fragP, segment) | |
29b0f896 AM |
7356 | fragS *fragP; |
7357 | segT segment; | |
252b5132 | 7358 | { |
252b5132 | 7359 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
7360 | check for un-relaxable symbols. On an ELF system, we can't relax |
7361 | an externally visible symbol, because it may be overridden by a | |
7362 | shared library. */ | |
7363 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 7364 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 7365 | || (IS_ELF |
31312f95 AM |
7366 | && (S_IS_EXTERNAL (fragP->fr_symbol) |
7367 | || S_IS_WEAK (fragP->fr_symbol))) | |
b98ef147 AM |
7368 | #endif |
7369 | ) | |
252b5132 | 7370 | { |
b98ef147 AM |
7371 | /* Symbol is undefined in this segment, or we need to keep a |
7372 | reloc so that weak symbols can be overridden. */ | |
7373 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 7374 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
7375 | unsigned char *opcode; |
7376 | int old_fr_fix; | |
f6af82bd | 7377 | |
ee7fcc42 AM |
7378 | if (fragP->fr_var != NO_RELOC) |
7379 | reloc_type = fragP->fr_var; | |
b98ef147 | 7380 | else if (size == 2) |
f6af82bd AM |
7381 | reloc_type = BFD_RELOC_16_PCREL; |
7382 | else | |
7383 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 7384 | |
ee7fcc42 AM |
7385 | old_fr_fix = fragP->fr_fix; |
7386 | opcode = (unsigned char *) fragP->fr_opcode; | |
7387 | ||
fddf5b5b | 7388 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 7389 | { |
fddf5b5b AM |
7390 | case UNCOND_JUMP: |
7391 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 7392 | opcode[0] = 0xe9; |
252b5132 | 7393 | fragP->fr_fix += size; |
062cd5e7 AS |
7394 | fix_new (fragP, old_fr_fix, size, |
7395 | fragP->fr_symbol, | |
7396 | fragP->fr_offset, 1, | |
7397 | reloc_type); | |
252b5132 RH |
7398 | break; |
7399 | ||
fddf5b5b | 7400 | case COND_JUMP86: |
412167cb AM |
7401 | if (size == 2 |
7402 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
7403 | { |
7404 | /* Negate the condition, and branch past an | |
7405 | unconditional jump. */ | |
7406 | opcode[0] ^= 1; | |
7407 | opcode[1] = 3; | |
7408 | /* Insert an unconditional jump. */ | |
7409 | opcode[2] = 0xe9; | |
7410 | /* We added two extra opcode bytes, and have a two byte | |
7411 | offset. */ | |
7412 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
7413 | fix_new (fragP, old_fr_fix + 2, 2, |
7414 | fragP->fr_symbol, | |
7415 | fragP->fr_offset, 1, | |
7416 | reloc_type); | |
fddf5b5b AM |
7417 | break; |
7418 | } | |
7419 | /* Fall through. */ | |
7420 | ||
7421 | case COND_JUMP: | |
412167cb AM |
7422 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
7423 | { | |
3e02c1cc AM |
7424 | fixS *fixP; |
7425 | ||
412167cb | 7426 | fragP->fr_fix += 1; |
3e02c1cc AM |
7427 | fixP = fix_new (fragP, old_fr_fix, 1, |
7428 | fragP->fr_symbol, | |
7429 | fragP->fr_offset, 1, | |
7430 | BFD_RELOC_8_PCREL); | |
7431 | fixP->fx_signed = 1; | |
412167cb AM |
7432 | break; |
7433 | } | |
93c2a809 | 7434 | |
24eab124 | 7435 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 7436 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 7437 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 7438 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
7439 | /* We've added an opcode byte. */ |
7440 | fragP->fr_fix += 1 + size; | |
062cd5e7 AS |
7441 | fix_new (fragP, old_fr_fix + 1, size, |
7442 | fragP->fr_symbol, | |
7443 | fragP->fr_offset, 1, | |
7444 | reloc_type); | |
252b5132 | 7445 | break; |
fddf5b5b AM |
7446 | |
7447 | default: | |
7448 | BAD_CASE (fragP->fr_subtype); | |
7449 | break; | |
252b5132 RH |
7450 | } |
7451 | frag_wane (fragP); | |
ee7fcc42 | 7452 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 7453 | } |
93c2a809 | 7454 | |
93c2a809 AM |
7455 | /* Guess size depending on current relax state. Initially the relax |
7456 | state will correspond to a short jump and we return 1, because | |
7457 | the variable part of the frag (the branch offset) is one byte | |
7458 | long. However, we can relax a section more than once and in that | |
7459 | case we must either set fr_subtype back to the unrelaxed state, | |
7460 | or return the value for the appropriate branch. */ | |
7461 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
7462 | } |
7463 | ||
47926f60 KH |
7464 | /* Called after relax() is finished. |
7465 | ||
7466 | In: Address of frag. | |
7467 | fr_type == rs_machine_dependent. | |
7468 | fr_subtype is what the address relaxed to. | |
7469 | ||
7470 | Out: Any fixSs and constants are set up. | |
7471 | Caller will turn frag into a ".space 0". */ | |
7472 | ||
252b5132 RH |
7473 | void |
7474 | md_convert_frag (abfd, sec, fragP) | |
ab9da554 ILT |
7475 | bfd *abfd ATTRIBUTE_UNUSED; |
7476 | segT sec ATTRIBUTE_UNUSED; | |
29b0f896 | 7477 | fragS *fragP; |
252b5132 | 7478 | { |
29b0f896 | 7479 | unsigned char *opcode; |
252b5132 | 7480 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
7481 | offsetT target_address; |
7482 | offsetT opcode_address; | |
252b5132 | 7483 | unsigned int extension = 0; |
847f7ad4 | 7484 | offsetT displacement_from_opcode_start; |
252b5132 RH |
7485 | |
7486 | opcode = (unsigned char *) fragP->fr_opcode; | |
7487 | ||
47926f60 | 7488 | /* Address we want to reach in file space. */ |
252b5132 | 7489 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 7490 | |
47926f60 | 7491 | /* Address opcode resides at in file space. */ |
252b5132 RH |
7492 | opcode_address = fragP->fr_address + fragP->fr_fix; |
7493 | ||
47926f60 | 7494 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
7495 | displacement_from_opcode_start = target_address - opcode_address; |
7496 | ||
fddf5b5b | 7497 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 7498 | { |
47926f60 KH |
7499 | /* Don't have to change opcode. */ |
7500 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 7501 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
7502 | } |
7503 | else | |
7504 | { | |
7505 | if (no_cond_jump_promotion | |
7506 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
7507 | as_warn_where (fragP->fr_file, fragP->fr_line, |
7508 | _("long jump required")); | |
252b5132 | 7509 | |
fddf5b5b AM |
7510 | switch (fragP->fr_subtype) |
7511 | { | |
7512 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
7513 | extension = 4; /* 1 opcode + 4 displacement */ | |
7514 | opcode[0] = 0xe9; | |
7515 | where_to_put_displacement = &opcode[1]; | |
7516 | break; | |
252b5132 | 7517 | |
fddf5b5b AM |
7518 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
7519 | extension = 2; /* 1 opcode + 2 displacement */ | |
7520 | opcode[0] = 0xe9; | |
7521 | where_to_put_displacement = &opcode[1]; | |
7522 | break; | |
252b5132 | 7523 | |
fddf5b5b AM |
7524 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
7525 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
7526 | extension = 5; /* 2 opcode + 4 displacement */ | |
7527 | opcode[1] = opcode[0] + 0x10; | |
7528 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
7529 | where_to_put_displacement = &opcode[2]; | |
7530 | break; | |
252b5132 | 7531 | |
fddf5b5b AM |
7532 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
7533 | extension = 3; /* 2 opcode + 2 displacement */ | |
7534 | opcode[1] = opcode[0] + 0x10; | |
7535 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
7536 | where_to_put_displacement = &opcode[2]; | |
7537 | break; | |
252b5132 | 7538 | |
fddf5b5b AM |
7539 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
7540 | extension = 4; | |
7541 | opcode[0] ^= 1; | |
7542 | opcode[1] = 3; | |
7543 | opcode[2] = 0xe9; | |
7544 | where_to_put_displacement = &opcode[3]; | |
7545 | break; | |
7546 | ||
7547 | default: | |
7548 | BAD_CASE (fragP->fr_subtype); | |
7549 | break; | |
7550 | } | |
252b5132 | 7551 | } |
fddf5b5b | 7552 | |
7b81dfbb AJ |
7553 | /* If size if less then four we are sure that the operand fits, |
7554 | but if it's 4, then it could be that the displacement is larger | |
7555 | then -/+ 2GB. */ | |
7556 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
7557 | && object_64bit | |
7558 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
7559 | + ((addressT) 1 << 31)) |
7560 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
7561 | { |
7562 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
7563 | _("jump target out of range")); | |
7564 | /* Make us emit 0. */ | |
7565 | displacement_from_opcode_start = extension; | |
7566 | } | |
47926f60 | 7567 | /* Now put displacement after opcode. */ |
252b5132 RH |
7568 | md_number_to_chars ((char *) where_to_put_displacement, |
7569 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 7570 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
7571 | fragP->fr_fix += extension; |
7572 | } | |
7573 | \f | |
252b5132 RH |
7574 | /* Apply a fixup (fixS) to segment data, once it has been determined |
7575 | by our caller that we have all the info we need to fix it up. | |
7576 | ||
7577 | On the 386, immediates, displacements, and data pointers are all in | |
7578 | the same (little-endian) format, so we don't need to care about which | |
7579 | we are handling. */ | |
7580 | ||
94f592af | 7581 | void |
55cf6793 | 7582 | md_apply_fix (fixP, valP, seg) |
47926f60 KH |
7583 | /* The fix we're to put in. */ |
7584 | fixS *fixP; | |
47926f60 | 7585 | /* Pointer to the value of the bits. */ |
c6682705 | 7586 | valueT *valP; |
47926f60 KH |
7587 | /* Segment fix is from. */ |
7588 | segT seg ATTRIBUTE_UNUSED; | |
252b5132 | 7589 | { |
94f592af | 7590 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 7591 | valueT value = *valP; |
252b5132 | 7592 | |
f86103b7 | 7593 | #if !defined (TE_Mach) |
93382f6d AM |
7594 | if (fixP->fx_pcrel) |
7595 | { | |
7596 | switch (fixP->fx_r_type) | |
7597 | { | |
5865bb77 ILT |
7598 | default: |
7599 | break; | |
7600 | ||
d6ab8113 JB |
7601 | case BFD_RELOC_64: |
7602 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
7603 | break; | |
93382f6d | 7604 | case BFD_RELOC_32: |
ae8887b5 | 7605 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
7606 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
7607 | break; | |
7608 | case BFD_RELOC_16: | |
7609 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
7610 | break; | |
7611 | case BFD_RELOC_8: | |
7612 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
7613 | break; | |
7614 | } | |
7615 | } | |
252b5132 | 7616 | |
a161fe53 | 7617 | if (fixP->fx_addsy != NULL |
31312f95 | 7618 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 7619 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 AM |
7620 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
7621 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) | |
7622 | && !use_rela_relocations) | |
252b5132 | 7623 | { |
31312f95 AM |
7624 | /* This is a hack. There should be a better way to handle this. |
7625 | This covers for the fact that bfd_install_relocation will | |
7626 | subtract the current location (for partial_inplace, PC relative | |
7627 | relocations); see more below. */ | |
252b5132 | 7628 | #ifndef OBJ_AOUT |
718ddfc0 | 7629 | if (IS_ELF |
252b5132 RH |
7630 | #ifdef TE_PE |
7631 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
7632 | #endif | |
7633 | ) | |
7634 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
7635 | #endif | |
7636 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 7637 | if (IS_ELF) |
252b5132 | 7638 | { |
6539b54b | 7639 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 7640 | |
6539b54b | 7641 | if ((sym_seg == seg |
2f66722d | 7642 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 7643 | && sym_seg != absolute_section)) |
ae6063d4 | 7644 | && !generic_force_reloc (fixP)) |
2f66722d AM |
7645 | { |
7646 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
7647 | bfd_install_relocation subtracts them out again. I think |
7648 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
7649 | it. FIXME. */ |
7650 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
7651 | } | |
252b5132 RH |
7652 | } |
7653 | #endif | |
7654 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
7655 | /* For some reason, the PE format does not store a |
7656 | section address offset for a PC relative symbol. */ | |
7657 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 7658 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
7659 | value += md_pcrel_from (fixP); |
7660 | #endif | |
7661 | } | |
7662 | ||
7663 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 7664 | and we must not disappoint it. */ |
252b5132 | 7665 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 7666 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
7667 | switch (fixP->fx_r_type) |
7668 | { | |
7669 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 7670 | case BFD_RELOC_X86_64_PLT32: |
47926f60 KH |
7671 | /* Make the jump instruction point to the address of the operand. At |
7672 | runtime we merely add the offset to the actual PLT entry. */ | |
7673 | value = -4; | |
7674 | break; | |
31312f95 | 7675 | |
13ae64f3 JJ |
7676 | case BFD_RELOC_386_TLS_GD: |
7677 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 7678 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
7679 | case BFD_RELOC_386_TLS_IE: |
7680 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 7681 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
7682 | case BFD_RELOC_X86_64_TLSGD: |
7683 | case BFD_RELOC_X86_64_TLSLD: | |
7684 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 7685 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
7686 | value = 0; /* Fully resolved at runtime. No addend. */ |
7687 | /* Fallthrough */ | |
7688 | case BFD_RELOC_386_TLS_LE: | |
7689 | case BFD_RELOC_386_TLS_LDO_32: | |
7690 | case BFD_RELOC_386_TLS_LE_32: | |
7691 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 7692 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 7693 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 7694 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
7695 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
7696 | break; | |
7697 | ||
67a4f2b7 AO |
7698 | case BFD_RELOC_386_TLS_DESC_CALL: |
7699 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
7700 | value = 0; /* Fully resolved at runtime. No addend. */ | |
7701 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7702 | fixP->fx_done = 0; | |
7703 | return; | |
7704 | ||
00f7efb6 JJ |
7705 | case BFD_RELOC_386_GOT32: |
7706 | case BFD_RELOC_X86_64_GOT32: | |
47926f60 KH |
7707 | value = 0; /* Fully resolved at runtime. No addend. */ |
7708 | break; | |
47926f60 KH |
7709 | |
7710 | case BFD_RELOC_VTABLE_INHERIT: | |
7711 | case BFD_RELOC_VTABLE_ENTRY: | |
7712 | fixP->fx_done = 0; | |
94f592af | 7713 | return; |
47926f60 KH |
7714 | |
7715 | default: | |
7716 | break; | |
7717 | } | |
7718 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
c6682705 | 7719 | *valP = value; |
f86103b7 | 7720 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 7721 | |
3e73aa7c | 7722 | /* Are we finished with this relocation now? */ |
c6682705 | 7723 | if (fixP->fx_addsy == NULL) |
3e73aa7c JH |
7724 | fixP->fx_done = 1; |
7725 | else if (use_rela_relocations) | |
7726 | { | |
7727 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
7728 | /* Remember value for tc_gen_reloc. */ |
7729 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
7730 | value = 0; |
7731 | } | |
f86103b7 | 7732 | |
94f592af | 7733 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 7734 | } |
252b5132 | 7735 | \f |
252b5132 | 7736 | char * |
499ac353 | 7737 | md_atof (int type, char *litP, int *sizeP) |
252b5132 | 7738 | { |
499ac353 NC |
7739 | /* This outputs the LITTLENUMs in REVERSE order; |
7740 | in accord with the bigendian 386. */ | |
7741 | return ieee_md_atof (type, litP, sizeP, FALSE); | |
252b5132 RH |
7742 | } |
7743 | \f | |
2d545b82 | 7744 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 7745 | |
252b5132 | 7746 | static char * |
e3bb37b5 | 7747 | output_invalid (int c) |
252b5132 | 7748 | { |
3882b010 | 7749 | if (ISPRINT (c)) |
f9f21a03 L |
7750 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
7751 | "'%c'", c); | |
252b5132 | 7752 | else |
f9f21a03 | 7753 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 7754 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
7755 | return output_invalid_buf; |
7756 | } | |
7757 | ||
af6bdddf | 7758 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
7759 | |
7760 | static const reg_entry * | |
4d1bb795 | 7761 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 7762 | { |
af6bdddf AM |
7763 | char *s = reg_string; |
7764 | char *p; | |
252b5132 RH |
7765 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
7766 | const reg_entry *r; | |
7767 | ||
7768 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
7769 | if (*s == REGISTER_PREFIX) | |
7770 | ++s; | |
7771 | ||
7772 | if (is_space_char (*s)) | |
7773 | ++s; | |
7774 | ||
7775 | p = reg_name_given; | |
af6bdddf | 7776 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
7777 | { |
7778 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
7779 | return (const reg_entry *) NULL; |
7780 | s++; | |
252b5132 RH |
7781 | } |
7782 | ||
6588847e DN |
7783 | /* For naked regs, make sure that we are not dealing with an identifier. |
7784 | This prevents confusing an identifier like `eax_var' with register | |
7785 | `eax'. */ | |
7786 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
7787 | return (const reg_entry *) NULL; | |
7788 | ||
af6bdddf | 7789 | *end_op = s; |
252b5132 RH |
7790 | |
7791 | r = (const reg_entry *) hash_find (reg_hash, reg_name_given); | |
7792 | ||
5f47d35b | 7793 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
47926f60 | 7794 | if (r == i386_regtab /* %st is first entry of table */) |
5f47d35b | 7795 | { |
5f47d35b AM |
7796 | if (is_space_char (*s)) |
7797 | ++s; | |
7798 | if (*s == '(') | |
7799 | { | |
af6bdddf | 7800 | ++s; |
5f47d35b AM |
7801 | if (is_space_char (*s)) |
7802 | ++s; | |
7803 | if (*s >= '0' && *s <= '7') | |
7804 | { | |
db557034 | 7805 | int fpr = *s - '0'; |
af6bdddf | 7806 | ++s; |
5f47d35b AM |
7807 | if (is_space_char (*s)) |
7808 | ++s; | |
7809 | if (*s == ')') | |
7810 | { | |
7811 | *end_op = s + 1; | |
db557034 AM |
7812 | r = hash_find (reg_hash, "st(0)"); |
7813 | know (r); | |
7814 | return r + fpr; | |
5f47d35b | 7815 | } |
5f47d35b | 7816 | } |
47926f60 | 7817 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
7818 | return (const reg_entry *) NULL; |
7819 | } | |
7820 | } | |
7821 | ||
a60de03c JB |
7822 | if (r == NULL || allow_pseudo_reg) |
7823 | return r; | |
7824 | ||
0dfbf9d7 | 7825 | if (operand_type_all_zero (&r->reg_type)) |
a60de03c JB |
7826 | return (const reg_entry *) NULL; |
7827 | ||
192dc9c6 JB |
7828 | if ((r->reg_type.bitfield.reg32 |
7829 | || r->reg_type.bitfield.sreg3 | |
7830 | || r->reg_type.bitfield.control | |
7831 | || r->reg_type.bitfield.debug | |
7832 | || r->reg_type.bitfield.test) | |
7833 | && !cpu_arch_flags.bitfield.cpui386) | |
7834 | return (const reg_entry *) NULL; | |
7835 | ||
7836 | if (r->reg_type.bitfield.regmmx && !cpu_arch_flags.bitfield.cpummx) | |
7837 | return (const reg_entry *) NULL; | |
7838 | ||
7839 | if (r->reg_type.bitfield.regxmm && !cpu_arch_flags.bitfield.cpusse) | |
7840 | return (const reg_entry *) NULL; | |
7841 | ||
40f12533 L |
7842 | if (r->reg_type.bitfield.regymm && !cpu_arch_flags.bitfield.cpuavx) |
7843 | return (const reg_entry *) NULL; | |
7844 | ||
db51cc60 | 7845 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ |
a60de03c | 7846 | if (!allow_index_reg |
db51cc60 L |
7847 | && (r->reg_num == RegEiz || r->reg_num == RegRiz)) |
7848 | return (const reg_entry *) NULL; | |
7849 | ||
a60de03c JB |
7850 | if (((r->reg_flags & (RegRex64 | RegRex)) |
7851 | || r->reg_type.bitfield.reg64) | |
40fb9820 | 7852 | && (!cpu_arch_flags.bitfield.cpulm |
0dfbf9d7 | 7853 | || !operand_type_equal (&r->reg_type, &control)) |
1ae00879 | 7854 | && flag_code != CODE_64BIT) |
20f0a1fc | 7855 | return (const reg_entry *) NULL; |
1ae00879 | 7856 | |
b7240065 JB |
7857 | if (r->reg_type.bitfield.sreg3 && r->reg_num == RegFlat && !intel_syntax) |
7858 | return (const reg_entry *) NULL; | |
7859 | ||
252b5132 RH |
7860 | return r; |
7861 | } | |
4d1bb795 JB |
7862 | |
7863 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
7864 | ||
7865 | static const reg_entry * | |
7866 | parse_register (char *reg_string, char **end_op) | |
7867 | { | |
7868 | const reg_entry *r; | |
7869 | ||
7870 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
7871 | r = parse_real_register (reg_string, end_op); | |
7872 | else | |
7873 | r = NULL; | |
7874 | if (!r) | |
7875 | { | |
7876 | char *save = input_line_pointer; | |
7877 | char c; | |
7878 | symbolS *symbolP; | |
7879 | ||
7880 | input_line_pointer = reg_string; | |
7881 | c = get_symbol_end (); | |
7882 | symbolP = symbol_find (reg_string); | |
7883 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) | |
7884 | { | |
7885 | const expressionS *e = symbol_get_value_expression (symbolP); | |
7886 | ||
7887 | know (e->X_op == O_register); | |
4eed87de | 7888 | know (e->X_add_number >= 0 |
c3fe08fa | 7889 | && (valueT) e->X_add_number < i386_regtab_size); |
4d1bb795 JB |
7890 | r = i386_regtab + e->X_add_number; |
7891 | *end_op = input_line_pointer; | |
7892 | } | |
7893 | *input_line_pointer = c; | |
7894 | input_line_pointer = save; | |
7895 | } | |
7896 | return r; | |
7897 | } | |
7898 | ||
7899 | int | |
7900 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
7901 | { | |
7902 | const reg_entry *r; | |
7903 | char *end = input_line_pointer; | |
7904 | ||
7905 | *end = *nextcharP; | |
7906 | r = parse_register (name, &input_line_pointer); | |
7907 | if (r && end <= input_line_pointer) | |
7908 | { | |
7909 | *nextcharP = *input_line_pointer; | |
7910 | *input_line_pointer = 0; | |
7911 | e->X_op = O_register; | |
7912 | e->X_add_number = r - i386_regtab; | |
7913 | return 1; | |
7914 | } | |
7915 | input_line_pointer = end; | |
7916 | *end = 0; | |
7917 | return 0; | |
7918 | } | |
7919 | ||
7920 | void | |
7921 | md_operand (expressionS *e) | |
7922 | { | |
7923 | if (*input_line_pointer == REGISTER_PREFIX) | |
7924 | { | |
7925 | char *end; | |
7926 | const reg_entry *r = parse_real_register (input_line_pointer, &end); | |
7927 | ||
7928 | if (r) | |
7929 | { | |
7930 | e->X_op = O_register; | |
7931 | e->X_add_number = r - i386_regtab; | |
7932 | input_line_pointer = end; | |
7933 | } | |
7934 | } | |
7935 | } | |
7936 | ||
252b5132 | 7937 | \f |
4cc782b5 | 7938 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
12b55ccc | 7939 | const char *md_shortopts = "kVQ:sqn"; |
252b5132 | 7940 | #else |
12b55ccc | 7941 | const char *md_shortopts = "qn"; |
252b5132 | 7942 | #endif |
6e0b89ee | 7943 | |
3e73aa7c | 7944 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
7945 | #define OPTION_64 (OPTION_MD_BASE + 1) |
7946 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
7947 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
7948 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
1efbbeb4 L |
7949 | #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5) |
7950 | #define OPTION_MSYNTAX (OPTION_MD_BASE + 6) | |
7951 | #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7) | |
7952 | #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8) | |
7953 | #define OPTION_MOLD_GCC (OPTION_MD_BASE + 9) | |
c0f3af97 | 7954 | #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10) |
daf50ae7 | 7955 | #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11) |
b3b91714 | 7956 | |
99ad8390 NC |
7957 | struct option md_longopts[] = |
7958 | { | |
3e73aa7c | 7959 | {"32", no_argument, NULL, OPTION_32}, |
99ad8390 | 7960 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
3e73aa7c | 7961 | {"64", no_argument, NULL, OPTION_64}, |
6e0b89ee | 7962 | #endif |
b3b91714 | 7963 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
7964 | {"march", required_argument, NULL, OPTION_MARCH}, |
7965 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
1efbbeb4 L |
7966 | {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC}, |
7967 | {"msyntax", required_argument, NULL, OPTION_MSYNTAX}, | |
7968 | {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG}, | |
7969 | {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG}, | |
7970 | {"mold-gcc", no_argument, NULL, OPTION_MOLD_GCC}, | |
c0f3af97 | 7971 | {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX}, |
daf50ae7 | 7972 | {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK}, |
252b5132 RH |
7973 | {NULL, no_argument, NULL, 0} |
7974 | }; | |
7975 | size_t md_longopts_size = sizeof (md_longopts); | |
7976 | ||
7977 | int | |
9103f4f4 | 7978 | md_parse_option (int c, char *arg) |
252b5132 | 7979 | { |
9103f4f4 | 7980 | unsigned int i; |
6305a203 | 7981 | char *arch, *next; |
9103f4f4 | 7982 | |
252b5132 RH |
7983 | switch (c) |
7984 | { | |
12b55ccc L |
7985 | case 'n': |
7986 | optimize_align_code = 0; | |
7987 | break; | |
7988 | ||
a38cf1db AM |
7989 | case 'q': |
7990 | quiet_warnings = 1; | |
252b5132 RH |
7991 | break; |
7992 | ||
7993 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
7994 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
7995 | should be emitted or not. FIXME: Not implemented. */ | |
7996 | case 'Q': | |
252b5132 RH |
7997 | break; |
7998 | ||
7999 | /* -V: SVR4 argument to print version ID. */ | |
8000 | case 'V': | |
8001 | print_version_id (); | |
8002 | break; | |
8003 | ||
a38cf1db AM |
8004 | /* -k: Ignore for FreeBSD compatibility. */ |
8005 | case 'k': | |
252b5132 | 8006 | break; |
4cc782b5 ILT |
8007 | |
8008 | case 's': | |
8009 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 8010 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 8011 | break; |
99ad8390 NC |
8012 | #endif |
8013 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) | |
3e73aa7c JH |
8014 | case OPTION_64: |
8015 | { | |
8016 | const char **list, **l; | |
8017 | ||
3e73aa7c JH |
8018 | list = bfd_target_list (); |
8019 | for (l = list; *l != NULL; l++) | |
8620418b | 8020 | if (CONST_STRNEQ (*l, "elf64-x86-64") |
99ad8390 NC |
8021 | || strcmp (*l, "coff-x86-64") == 0 |
8022 | || strcmp (*l, "pe-x86-64") == 0 | |
8023 | || strcmp (*l, "pei-x86-64") == 0) | |
6e0b89ee AM |
8024 | { |
8025 | default_arch = "x86_64"; | |
8026 | break; | |
8027 | } | |
3e73aa7c | 8028 | if (*l == NULL) |
6e0b89ee | 8029 | as_fatal (_("No compiled in support for x86_64")); |
3e73aa7c JH |
8030 | free (list); |
8031 | } | |
8032 | break; | |
8033 | #endif | |
252b5132 | 8034 | |
6e0b89ee AM |
8035 | case OPTION_32: |
8036 | default_arch = "i386"; | |
8037 | break; | |
8038 | ||
b3b91714 AM |
8039 | case OPTION_DIVIDE: |
8040 | #ifdef SVR4_COMMENT_CHARS | |
8041 | { | |
8042 | char *n, *t; | |
8043 | const char *s; | |
8044 | ||
8045 | n = (char *) xmalloc (strlen (i386_comment_chars) + 1); | |
8046 | t = n; | |
8047 | for (s = i386_comment_chars; *s != '\0'; s++) | |
8048 | if (*s != '/') | |
8049 | *t++ = *s; | |
8050 | *t = '\0'; | |
8051 | i386_comment_chars = n; | |
8052 | } | |
8053 | #endif | |
8054 | break; | |
8055 | ||
9103f4f4 | 8056 | case OPTION_MARCH: |
6305a203 L |
8057 | arch = xstrdup (arg); |
8058 | do | |
9103f4f4 | 8059 | { |
6305a203 L |
8060 | if (*arch == '.') |
8061 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
8062 | next = strchr (arch, '+'); | |
8063 | if (next) | |
8064 | *next++ = '\0'; | |
8065 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
9103f4f4 | 8066 | { |
6305a203 | 8067 | if (strcmp (arch, cpu_arch [i].name) == 0) |
ccc9c027 | 8068 | { |
6305a203 L |
8069 | /* Processor. */ |
8070 | cpu_arch_name = cpu_arch[i].name; | |
8071 | cpu_sub_arch_name = NULL; | |
8072 | cpu_arch_flags = cpu_arch[i].flags; | |
8073 | cpu_arch_isa = cpu_arch[i].type; | |
8074 | cpu_arch_isa_flags = cpu_arch[i].flags; | |
8075 | if (!cpu_arch_tune_set) | |
8076 | { | |
8077 | cpu_arch_tune = cpu_arch_isa; | |
8078 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
8079 | } | |
8080 | break; | |
8081 | } | |
8082 | else if (*cpu_arch [i].name == '.' | |
8083 | && strcmp (arch, cpu_arch [i].name + 1) == 0) | |
8084 | { | |
8085 | /* ISA entension. */ | |
8086 | i386_cpu_flags flags; | |
8087 | flags = cpu_flags_or (cpu_arch_flags, | |
8088 | cpu_arch[i].flags); | |
0dfbf9d7 | 8089 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
6305a203 L |
8090 | { |
8091 | if (cpu_sub_arch_name) | |
8092 | { | |
8093 | char *name = cpu_sub_arch_name; | |
8094 | cpu_sub_arch_name = concat (name, | |
8095 | cpu_arch[i].name, | |
1bf57e9f | 8096 | (const char *) NULL); |
6305a203 L |
8097 | free (name); |
8098 | } | |
8099 | else | |
8100 | cpu_sub_arch_name = xstrdup (cpu_arch[i].name); | |
8101 | cpu_arch_flags = flags; | |
8102 | } | |
8103 | break; | |
ccc9c027 | 8104 | } |
9103f4f4 | 8105 | } |
6305a203 L |
8106 | |
8107 | if (i >= ARRAY_SIZE (cpu_arch)) | |
8108 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
8109 | ||
8110 | arch = next; | |
9103f4f4 | 8111 | } |
6305a203 | 8112 | while (next != NULL ); |
9103f4f4 L |
8113 | break; |
8114 | ||
8115 | case OPTION_MTUNE: | |
8116 | if (*arg == '.') | |
8117 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
8118 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
8119 | { | |
8120 | if (strcmp (arg, cpu_arch [i].name) == 0) | |
8121 | { | |
ccc9c027 | 8122 | cpu_arch_tune_set = 1; |
9103f4f4 L |
8123 | cpu_arch_tune = cpu_arch [i].type; |
8124 | cpu_arch_tune_flags = cpu_arch[i].flags; | |
8125 | break; | |
8126 | } | |
8127 | } | |
8128 | if (i >= ARRAY_SIZE (cpu_arch)) | |
8129 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
8130 | break; | |
8131 | ||
1efbbeb4 L |
8132 | case OPTION_MMNEMONIC: |
8133 | if (strcasecmp (arg, "att") == 0) | |
8134 | intel_mnemonic = 0; | |
8135 | else if (strcasecmp (arg, "intel") == 0) | |
8136 | intel_mnemonic = 1; | |
8137 | else | |
8138 | as_fatal (_("Invalid -mmnemonic= option: `%s'"), arg); | |
8139 | break; | |
8140 | ||
8141 | case OPTION_MSYNTAX: | |
8142 | if (strcasecmp (arg, "att") == 0) | |
8143 | intel_syntax = 0; | |
8144 | else if (strcasecmp (arg, "intel") == 0) | |
8145 | intel_syntax = 1; | |
8146 | else | |
8147 | as_fatal (_("Invalid -msyntax= option: `%s'"), arg); | |
8148 | break; | |
8149 | ||
8150 | case OPTION_MINDEX_REG: | |
8151 | allow_index_reg = 1; | |
8152 | break; | |
8153 | ||
8154 | case OPTION_MNAKED_REG: | |
8155 | allow_naked_reg = 1; | |
8156 | break; | |
8157 | ||
8158 | case OPTION_MOLD_GCC: | |
8159 | old_gcc = 1; | |
1efbbeb4 L |
8160 | break; |
8161 | ||
c0f3af97 L |
8162 | case OPTION_MSSE2AVX: |
8163 | sse2avx = 1; | |
8164 | break; | |
8165 | ||
daf50ae7 L |
8166 | case OPTION_MSSE_CHECK: |
8167 | if (strcasecmp (arg, "error") == 0) | |
8168 | sse_check = sse_check_error; | |
8169 | else if (strcasecmp (arg, "warning") == 0) | |
8170 | sse_check = sse_check_warning; | |
8171 | else if (strcasecmp (arg, "none") == 0) | |
8172 | sse_check = sse_check_none; | |
8173 | else | |
8174 | as_fatal (_("Invalid -msse-check= option: `%s'"), arg); | |
8175 | break; | |
8176 | ||
252b5132 RH |
8177 | default: |
8178 | return 0; | |
8179 | } | |
8180 | return 1; | |
8181 | } | |
8182 | ||
8183 | void | |
8184 | md_show_usage (stream) | |
8185 | FILE *stream; | |
8186 | { | |
4cc782b5 ILT |
8187 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8188 | fprintf (stream, _("\ | |
a38cf1db AM |
8189 | -Q ignored\n\ |
8190 | -V print assembler version number\n\ | |
b3b91714 AM |
8191 | -k ignored\n")); |
8192 | #endif | |
8193 | fprintf (stream, _("\ | |
12b55ccc | 8194 | -n Do not optimize code alignment\n\ |
b3b91714 AM |
8195 | -q quieten some warnings\n")); |
8196 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
8197 | fprintf (stream, _("\ | |
a38cf1db | 8198 | -s ignored\n")); |
b3b91714 | 8199 | #endif |
751d281c L |
8200 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
8201 | fprintf (stream, _("\ | |
8202 | --32/--64 generate 32bit/64bit code\n")); | |
8203 | #endif | |
b3b91714 AM |
8204 | #ifdef SVR4_COMMENT_CHARS |
8205 | fprintf (stream, _("\ | |
8206 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
8207 | #else |
8208 | fprintf (stream, _("\ | |
b3b91714 | 8209 | --divide ignored\n")); |
4cc782b5 | 8210 | #endif |
9103f4f4 | 8211 | fprintf (stream, _("\ |
6305a203 L |
8212 | -march=CPU[,+EXTENSION...]\n\ |
8213 | generate code for CPU and EXTENSION, CPU is one of:\n\ | |
2cb4f3d5 L |
8214 | i8086, i186, i286, i386, i486, pentium, pentiumpro,\n\ |
8215 | pentiumii, pentiumiii, pentium4, prescott, nocona,\n\ | |
bd5295b2 | 8216 | core, core2, corei7, k6, k6_2, athlon, k8, amdfam10,\n\ |
2cb4f3d5 | 8217 | generic32, generic64\n\ |
599121aa L |
8218 | EXTENSION is combination of:\n\ |
8219 | mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, sse4,\n\ | |
f1f8f695 | 8220 | avx, vmx, smx, xsave, movbe, ept, aes, pclmul, fma,\n\ |
bd5295b2 L |
8221 | clflush, syscall, rdtscp, 3dnow, 3dnowa, sse4a,\n\ |
8222 | sse5, svme, abm, padlock\n")); | |
6305a203 | 8223 | fprintf (stream, _("\ |
2cb4f3d5 L |
8224 | -mtune=CPU optimize for CPU, CPU is one of:\n\ |
8225 | i8086, i186, i286, i386, i486, pentium, pentiumpro,\n\ | |
8226 | pentiumii, pentiumiii, pentium4, prescott, nocona,\n\ | |
bd5295b2 | 8227 | core, core2, corei7, k6, k6_2, athlon, k8, amdfam10,\n\ |
2cb4f3d5 | 8228 | generic32, generic64\n")); |
ba104c83 | 8229 | fprintf (stream, _("\ |
c0f3af97 L |
8230 | -msse2avx encode SSE instructions with VEX prefix\n")); |
8231 | fprintf (stream, _("\ | |
daf50ae7 L |
8232 | -msse-check=[none|error|warning]\n\ |
8233 | check SSE instructions\n")); | |
8234 | fprintf (stream, _("\ | |
ba104c83 L |
8235 | -mmnemonic=[att|intel] use AT&T/Intel mnemonic\n")); |
8236 | fprintf (stream, _("\ | |
8237 | -msyntax=[att|intel] use AT&T/Intel syntax\n")); | |
8238 | fprintf (stream, _("\ | |
8239 | -mindex-reg support pseudo index registers\n")); | |
8240 | fprintf (stream, _("\ | |
8241 | -mnaked-reg don't require `%%' prefix for registers\n")); | |
8242 | fprintf (stream, _("\ | |
8243 | -mold-gcc support old (<= 2.8.1) versions of gcc\n")); | |
252b5132 RH |
8244 | } |
8245 | ||
3e73aa7c | 8246 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
872ce6ff | 8247 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (TE_PEP)) |
252b5132 RH |
8248 | |
8249 | /* Pick the target format to use. */ | |
8250 | ||
47926f60 | 8251 | const char * |
e3bb37b5 | 8252 | i386_target_format (void) |
252b5132 | 8253 | { |
3e73aa7c | 8254 | if (!strcmp (default_arch, "x86_64")) |
9103f4f4 L |
8255 | { |
8256 | set_code_flag (CODE_64BIT); | |
0dfbf9d7 | 8257 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) |
40fb9820 L |
8258 | { |
8259 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
8260 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
8261 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
8262 | cpu_arch_isa_flags.bitfield.cpui486 = 1; | |
8263 | cpu_arch_isa_flags.bitfield.cpui586 = 1; | |
8264 | cpu_arch_isa_flags.bitfield.cpui686 = 1; | |
bd5295b2 | 8265 | cpu_arch_isa_flags.bitfield.cpuclflush = 1; |
40fb9820 | 8266 | cpu_arch_isa_flags.bitfield.cpummx= 1; |
40fb9820 L |
8267 | cpu_arch_isa_flags.bitfield.cpusse = 1; |
8268 | cpu_arch_isa_flags.bitfield.cpusse2 = 1; | |
8269 | } | |
0dfbf9d7 | 8270 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
40fb9820 L |
8271 | { |
8272 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
8273 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
8274 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
8275 | cpu_arch_tune_flags.bitfield.cpui486 = 1; | |
8276 | cpu_arch_tune_flags.bitfield.cpui586 = 1; | |
8277 | cpu_arch_tune_flags.bitfield.cpui686 = 1; | |
bd5295b2 | 8278 | cpu_arch_tune_flags.bitfield.cpuclflush = 1; |
40fb9820 | 8279 | cpu_arch_tune_flags.bitfield.cpummx= 1; |
40fb9820 L |
8280 | cpu_arch_tune_flags.bitfield.cpusse = 1; |
8281 | cpu_arch_tune_flags.bitfield.cpusse2 = 1; | |
8282 | } | |
9103f4f4 | 8283 | } |
3e73aa7c | 8284 | else if (!strcmp (default_arch, "i386")) |
9103f4f4 L |
8285 | { |
8286 | set_code_flag (CODE_32BIT); | |
0dfbf9d7 | 8287 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) |
40fb9820 L |
8288 | { |
8289 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
8290 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
8291 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
8292 | } | |
0dfbf9d7 | 8293 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
40fb9820 L |
8294 | { |
8295 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
8296 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
8297 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
8298 | } | |
9103f4f4 | 8299 | } |
3e73aa7c JH |
8300 | else |
8301 | as_fatal (_("Unknown architecture")); | |
252b5132 RH |
8302 | switch (OUTPUT_FLAVOR) |
8303 | { | |
872ce6ff L |
8304 | #ifdef TE_PEP |
8305 | case bfd_target_coff_flavour: | |
b01ee69d | 8306 | return flag_code == CODE_64BIT ? COFF_TARGET_FORMAT : "pe-i386"; |
872ce6ff L |
8307 | break; |
8308 | #endif | |
4c63da97 AM |
8309 | #ifdef OBJ_MAYBE_AOUT |
8310 | case bfd_target_aout_flavour: | |
47926f60 | 8311 | return AOUT_TARGET_FORMAT; |
4c63da97 AM |
8312 | #endif |
8313 | #ifdef OBJ_MAYBE_COFF | |
252b5132 RH |
8314 | case bfd_target_coff_flavour: |
8315 | return "coff-i386"; | |
4c63da97 | 8316 | #endif |
3e73aa7c | 8317 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 8318 | case bfd_target_elf_flavour: |
3e73aa7c | 8319 | { |
e5cb08ac | 8320 | if (flag_code == CODE_64BIT) |
4fa24527 JB |
8321 | { |
8322 | object_64bit = 1; | |
8323 | use_rela_relocations = 1; | |
8324 | } | |
9d7cbccd | 8325 | return flag_code == CODE_64BIT ? ELF_TARGET_FORMAT64 : ELF_TARGET_FORMAT; |
3e73aa7c | 8326 | } |
4c63da97 | 8327 | #endif |
252b5132 RH |
8328 | default: |
8329 | abort (); | |
8330 | return NULL; | |
8331 | } | |
8332 | } | |
8333 | ||
47926f60 | 8334 | #endif /* OBJ_MAYBE_ more than one */ |
a847613f AM |
8335 | |
8336 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) | |
e3bb37b5 L |
8337 | void |
8338 | i386_elf_emit_arch_note (void) | |
a847613f | 8339 | { |
718ddfc0 | 8340 | if (IS_ELF && cpu_arch_name != NULL) |
a847613f AM |
8341 | { |
8342 | char *p; | |
8343 | asection *seg = now_seg; | |
8344 | subsegT subseg = now_subseg; | |
8345 | Elf_Internal_Note i_note; | |
8346 | Elf_External_Note e_note; | |
8347 | asection *note_secp; | |
8348 | int len; | |
8349 | ||
8350 | /* Create the .note section. */ | |
8351 | note_secp = subseg_new (".note", 0); | |
8352 | bfd_set_section_flags (stdoutput, | |
8353 | note_secp, | |
8354 | SEC_HAS_CONTENTS | SEC_READONLY); | |
8355 | ||
8356 | /* Process the arch string. */ | |
8357 | len = strlen (cpu_arch_name); | |
8358 | ||
8359 | i_note.namesz = len + 1; | |
8360 | i_note.descsz = 0; | |
8361 | i_note.type = NT_ARCH; | |
8362 | p = frag_more (sizeof (e_note.namesz)); | |
8363 | md_number_to_chars (p, (valueT) i_note.namesz, sizeof (e_note.namesz)); | |
8364 | p = frag_more (sizeof (e_note.descsz)); | |
8365 | md_number_to_chars (p, (valueT) i_note.descsz, sizeof (e_note.descsz)); | |
8366 | p = frag_more (sizeof (e_note.type)); | |
8367 | md_number_to_chars (p, (valueT) i_note.type, sizeof (e_note.type)); | |
8368 | p = frag_more (len + 1); | |
8369 | strcpy (p, cpu_arch_name); | |
8370 | ||
8371 | frag_align (2, 0, 0); | |
8372 | ||
8373 | subseg_set (seg, subseg); | |
8374 | } | |
8375 | } | |
8376 | #endif | |
252b5132 | 8377 | \f |
252b5132 RH |
8378 | symbolS * |
8379 | md_undefined_symbol (name) | |
8380 | char *name; | |
8381 | { | |
18dc2407 ILT |
8382 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
8383 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
8384 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
8385 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
8386 | { |
8387 | if (!GOT_symbol) | |
8388 | { | |
8389 | if (symbol_find (name)) | |
8390 | as_bad (_("GOT already in symbol table")); | |
8391 | GOT_symbol = symbol_new (name, undefined_section, | |
8392 | (valueT) 0, &zero_address_frag); | |
8393 | }; | |
8394 | return GOT_symbol; | |
8395 | } | |
252b5132 RH |
8396 | return 0; |
8397 | } | |
8398 | ||
8399 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 8400 | |
252b5132 RH |
8401 | valueT |
8402 | md_section_align (segment, size) | |
ab9da554 | 8403 | segT segment ATTRIBUTE_UNUSED; |
252b5132 RH |
8404 | valueT size; |
8405 | { | |
4c63da97 AM |
8406 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
8407 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
8408 | { | |
8409 | /* For a.out, force the section size to be aligned. If we don't do | |
8410 | this, BFD will align it for us, but it will not write out the | |
8411 | final bytes of the section. This may be a bug in BFD, but it is | |
8412 | easier to fix it here since that is how the other a.out targets | |
8413 | work. */ | |
8414 | int align; | |
8415 | ||
8416 | align = bfd_get_section_alignment (stdoutput, segment); | |
8417 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
8418 | } | |
252b5132 RH |
8419 | #endif |
8420 | ||
8421 | return size; | |
8422 | } | |
8423 | ||
8424 | /* On the i386, PC-relative offsets are relative to the start of the | |
8425 | next instruction. That is, the address of the offset, plus its | |
8426 | size, since the offset is always the last part of the insn. */ | |
8427 | ||
8428 | long | |
e3bb37b5 | 8429 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
8430 | { |
8431 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
8432 | } | |
8433 | ||
8434 | #ifndef I386COFF | |
8435 | ||
8436 | static void | |
e3bb37b5 | 8437 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 8438 | { |
29b0f896 | 8439 | int temp; |
252b5132 | 8440 | |
8a75718c JB |
8441 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8442 | if (IS_ELF) | |
8443 | obj_elf_section_change_hook (); | |
8444 | #endif | |
252b5132 RH |
8445 | temp = get_absolute_expression (); |
8446 | subseg_set (bss_section, (subsegT) temp); | |
8447 | demand_empty_rest_of_line (); | |
8448 | } | |
8449 | ||
8450 | #endif | |
8451 | ||
252b5132 | 8452 | void |
e3bb37b5 | 8453 | i386_validate_fix (fixS *fixp) |
252b5132 RH |
8454 | { |
8455 | if (fixp->fx_subsy && fixp->fx_subsy == GOT_symbol) | |
8456 | { | |
23df1078 JH |
8457 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
8458 | { | |
4fa24527 | 8459 | if (!object_64bit) |
23df1078 JH |
8460 | abort (); |
8461 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
8462 | } | |
8463 | else | |
8464 | { | |
4fa24527 | 8465 | if (!object_64bit) |
d6ab8113 JB |
8466 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; |
8467 | else | |
8468 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
23df1078 | 8469 | } |
252b5132 RH |
8470 | fixp->fx_subsy = 0; |
8471 | } | |
8472 | } | |
8473 | ||
252b5132 RH |
8474 | arelent * |
8475 | tc_gen_reloc (section, fixp) | |
ab9da554 | 8476 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
8477 | fixS *fixp; |
8478 | { | |
8479 | arelent *rel; | |
8480 | bfd_reloc_code_real_type code; | |
8481 | ||
8482 | switch (fixp->fx_r_type) | |
8483 | { | |
3e73aa7c JH |
8484 | case BFD_RELOC_X86_64_PLT32: |
8485 | case BFD_RELOC_X86_64_GOT32: | |
8486 | case BFD_RELOC_X86_64_GOTPCREL: | |
252b5132 RH |
8487 | case BFD_RELOC_386_PLT32: |
8488 | case BFD_RELOC_386_GOT32: | |
8489 | case BFD_RELOC_386_GOTOFF: | |
8490 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
8491 | case BFD_RELOC_386_TLS_GD: |
8492 | case BFD_RELOC_386_TLS_LDM: | |
8493 | case BFD_RELOC_386_TLS_LDO_32: | |
8494 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
8495 | case BFD_RELOC_386_TLS_IE: |
8496 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
8497 | case BFD_RELOC_386_TLS_LE_32: |
8498 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
8499 | case BFD_RELOC_386_TLS_GOTDESC: |
8500 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
8501 | case BFD_RELOC_X86_64_TLSGD: |
8502 | case BFD_RELOC_X86_64_TLSLD: | |
8503 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 8504 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
8505 | case BFD_RELOC_X86_64_GOTTPOFF: |
8506 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
8507 | case BFD_RELOC_X86_64_TPOFF64: |
8508 | case BFD_RELOC_X86_64_GOTOFF64: | |
8509 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
8510 | case BFD_RELOC_X86_64_GOT64: |
8511 | case BFD_RELOC_X86_64_GOTPCREL64: | |
8512 | case BFD_RELOC_X86_64_GOTPC64: | |
8513 | case BFD_RELOC_X86_64_GOTPLT64: | |
8514 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
8515 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
8516 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
8517 | case BFD_RELOC_RVA: |
8518 | case BFD_RELOC_VTABLE_ENTRY: | |
8519 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
8520 | #ifdef TE_PE |
8521 | case BFD_RELOC_32_SECREL: | |
8522 | #endif | |
252b5132 RH |
8523 | code = fixp->fx_r_type; |
8524 | break; | |
dbbaec26 L |
8525 | case BFD_RELOC_X86_64_32S: |
8526 | if (!fixp->fx_pcrel) | |
8527 | { | |
8528 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
8529 | code = fixp->fx_r_type; | |
8530 | break; | |
8531 | } | |
252b5132 | 8532 | default: |
93382f6d | 8533 | if (fixp->fx_pcrel) |
252b5132 | 8534 | { |
93382f6d AM |
8535 | switch (fixp->fx_size) |
8536 | { | |
8537 | default: | |
b091f402 AM |
8538 | as_bad_where (fixp->fx_file, fixp->fx_line, |
8539 | _("can not do %d byte pc-relative relocation"), | |
8540 | fixp->fx_size); | |
93382f6d AM |
8541 | code = BFD_RELOC_32_PCREL; |
8542 | break; | |
8543 | case 1: code = BFD_RELOC_8_PCREL; break; | |
8544 | case 2: code = BFD_RELOC_16_PCREL; break; | |
8545 | case 4: code = BFD_RELOC_32_PCREL; break; | |
d6ab8113 JB |
8546 | #ifdef BFD64 |
8547 | case 8: code = BFD_RELOC_64_PCREL; break; | |
8548 | #endif | |
93382f6d AM |
8549 | } |
8550 | } | |
8551 | else | |
8552 | { | |
8553 | switch (fixp->fx_size) | |
8554 | { | |
8555 | default: | |
b091f402 AM |
8556 | as_bad_where (fixp->fx_file, fixp->fx_line, |
8557 | _("can not do %d byte relocation"), | |
8558 | fixp->fx_size); | |
93382f6d AM |
8559 | code = BFD_RELOC_32; |
8560 | break; | |
8561 | case 1: code = BFD_RELOC_8; break; | |
8562 | case 2: code = BFD_RELOC_16; break; | |
8563 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 8564 | #ifdef BFD64 |
3e73aa7c | 8565 | case 8: code = BFD_RELOC_64; break; |
937149dd | 8566 | #endif |
93382f6d | 8567 | } |
252b5132 RH |
8568 | } |
8569 | break; | |
8570 | } | |
252b5132 | 8571 | |
d182319b JB |
8572 | if ((code == BFD_RELOC_32 |
8573 | || code == BFD_RELOC_32_PCREL | |
8574 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
8575 | && GOT_symbol |
8576 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 8577 | { |
4fa24527 | 8578 | if (!object_64bit) |
d6ab8113 JB |
8579 | code = BFD_RELOC_386_GOTPC; |
8580 | else | |
8581 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 8582 | } |
7b81dfbb AJ |
8583 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
8584 | && GOT_symbol | |
8585 | && fixp->fx_addsy == GOT_symbol) | |
8586 | { | |
8587 | code = BFD_RELOC_X86_64_GOTPC64; | |
8588 | } | |
252b5132 RH |
8589 | |
8590 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
8591 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
8592 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
8593 | |
8594 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 8595 | |
3e73aa7c JH |
8596 | if (!use_rela_relocations) |
8597 | { | |
8598 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
8599 | vtable entry to be used in the relocation's section offset. */ | |
8600 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
8601 | rel->address = fixp->fx_offset; | |
252b5132 | 8602 | |
c6682705 | 8603 | rel->addend = 0; |
3e73aa7c JH |
8604 | } |
8605 | /* Use the rela in 64bit mode. */ | |
252b5132 | 8606 | else |
3e73aa7c | 8607 | { |
062cd5e7 AS |
8608 | if (!fixp->fx_pcrel) |
8609 | rel->addend = fixp->fx_offset; | |
8610 | else | |
8611 | switch (code) | |
8612 | { | |
8613 | case BFD_RELOC_X86_64_PLT32: | |
8614 | case BFD_RELOC_X86_64_GOT32: | |
8615 | case BFD_RELOC_X86_64_GOTPCREL: | |
bffbf940 JJ |
8616 | case BFD_RELOC_X86_64_TLSGD: |
8617 | case BFD_RELOC_X86_64_TLSLD: | |
8618 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
8619 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
8620 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
8621 | rel->addend = fixp->fx_offset - fixp->fx_size; |
8622 | break; | |
8623 | default: | |
8624 | rel->addend = (section->vma | |
8625 | - fixp->fx_size | |
8626 | + fixp->fx_addnumber | |
8627 | + md_pcrel_from (fixp)); | |
8628 | break; | |
8629 | } | |
3e73aa7c JH |
8630 | } |
8631 | ||
252b5132 RH |
8632 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
8633 | if (rel->howto == NULL) | |
8634 | { | |
8635 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 8636 | _("cannot represent relocation type %s"), |
252b5132 RH |
8637 | bfd_get_reloc_code_name (code)); |
8638 | /* Set howto to a garbage value so that we can keep going. */ | |
8639 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
8640 | assert (rel->howto != NULL); | |
8641 | } | |
8642 | ||
8643 | return rel; | |
8644 | } | |
8645 | ||
64a0c779 DN |
8646 | \f |
8647 | /* Parse operands using Intel syntax. This implements a recursive descent | |
8648 | parser based on the BNF grammar published in Appendix B of the MASM 6.1 | |
8649 | Programmer's Guide. | |
8650 | ||
8651 | FIXME: We do not recognize the full operand grammar defined in the MASM | |
8652 | documentation. In particular, all the structure/union and | |
8653 | high-level macro operands are missing. | |
8654 | ||
8655 | Uppercase words are terminals, lower case words are non-terminals. | |
8656 | Objects surrounded by double brackets '[[' ']]' are optional. Vertical | |
8657 | bars '|' denote choices. Most grammar productions are implemented in | |
8658 | functions called 'intel_<production>'. | |
8659 | ||
8660 | Initial production is 'expr'. | |
8661 | ||
9306ca4a | 8662 | addOp + | - |
64a0c779 DN |
8663 | |
8664 | alpha [a-zA-Z] | |
8665 | ||
9306ca4a JB |
8666 | binOp & | AND | \| | OR | ^ | XOR |
8667 | ||
64a0c779 DN |
8668 | byteRegister AL | AH | BL | BH | CL | CH | DL | DH |
8669 | ||
8670 | constant digits [[ radixOverride ]] | |
8671 | ||
c0f3af97 | 8672 | dataType BYTE | WORD | DWORD | FWORD | QWORD | TBYTE | OWORD | XMMWORD | YMMWORD |
64a0c779 DN |
8673 | |
8674 | digits decdigit | |
b77a7acd AJ |
8675 | | digits decdigit |
8676 | | digits hexdigit | |
64a0c779 DN |
8677 | |
8678 | decdigit [0-9] | |
8679 | ||
9306ca4a JB |
8680 | e04 e04 addOp e05 |
8681 | | e05 | |
8682 | ||
8683 | e05 e05 binOp e06 | |
b77a7acd | 8684 | | e06 |
64a0c779 DN |
8685 | |
8686 | e06 e06 mulOp e09 | |
b77a7acd | 8687 | | e09 |
64a0c779 DN |
8688 | |
8689 | e09 OFFSET e10 | |
a724f0f4 JB |
8690 | | SHORT e10 |
8691 | | + e10 | |
8692 | | - e10 | |
9306ca4a JB |
8693 | | ~ e10 |
8694 | | NOT e10 | |
64a0c779 DN |
8695 | | e09 PTR e10 |
8696 | | e09 : e10 | |
8697 | | e10 | |
8698 | ||
8699 | e10 e10 [ expr ] | |
b77a7acd | 8700 | | e11 |
64a0c779 DN |
8701 | |
8702 | e11 ( expr ) | |
b77a7acd | 8703 | | [ expr ] |
64a0c779 DN |
8704 | | constant |
8705 | | dataType | |
8706 | | id | |
8707 | | $ | |
8708 | | register | |
8709 | ||
a724f0f4 | 8710 | => expr expr cmpOp e04 |
9306ca4a | 8711 | | e04 |
64a0c779 DN |
8712 | |
8713 | gpRegister AX | EAX | BX | EBX | CX | ECX | DX | EDX | |
b77a7acd | 8714 | | BP | EBP | SP | ESP | DI | EDI | SI | ESI |
64a0c779 DN |
8715 | |
8716 | hexdigit a | b | c | d | e | f | |
b77a7acd | 8717 | | A | B | C | D | E | F |
64a0c779 DN |
8718 | |
8719 | id alpha | |
b77a7acd | 8720 | | id alpha |
64a0c779 DN |
8721 | | id decdigit |
8722 | ||
9306ca4a | 8723 | mulOp * | / | % | MOD | << | SHL | >> | SHR |
64a0c779 DN |
8724 | |
8725 | quote " | ' | |
8726 | ||
8727 | register specialRegister | |
b77a7acd | 8728 | | gpRegister |
64a0c779 DN |
8729 | | byteRegister |
8730 | ||
8731 | segmentRegister CS | DS | ES | FS | GS | SS | |
8732 | ||
9306ca4a | 8733 | specialRegister CR0 | CR2 | CR3 | CR4 |
b77a7acd | 8734 | | DR0 | DR1 | DR2 | DR3 | DR6 | DR7 |
64a0c779 DN |
8735 | | TR3 | TR4 | TR5 | TR6 | TR7 |
8736 | ||
64a0c779 DN |
8737 | We simplify the grammar in obvious places (e.g., register parsing is |
8738 | done by calling parse_register) and eliminate immediate left recursion | |
8739 | to implement a recursive-descent parser. | |
8740 | ||
a724f0f4 JB |
8741 | expr e04 expr' |
8742 | ||
8743 | expr' cmpOp e04 expr' | |
8744 | | Empty | |
9306ca4a JB |
8745 | |
8746 | e04 e05 e04' | |
8747 | ||
8748 | e04' addOp e05 e04' | |
8749 | | Empty | |
64a0c779 DN |
8750 | |
8751 | e05 e06 e05' | |
8752 | ||
9306ca4a | 8753 | e05' binOp e06 e05' |
b77a7acd | 8754 | | Empty |
64a0c779 DN |
8755 | |
8756 | e06 e09 e06' | |
8757 | ||
8758 | e06' mulOp e09 e06' | |
b77a7acd | 8759 | | Empty |
64a0c779 DN |
8760 | |
8761 | e09 OFFSET e10 e09' | |
a724f0f4 JB |
8762 | | SHORT e10' |
8763 | | + e10' | |
8764 | | - e10' | |
8765 | | ~ e10' | |
8766 | | NOT e10' | |
b77a7acd | 8767 | | e10 e09' |
64a0c779 DN |
8768 | |
8769 | e09' PTR e10 e09' | |
b77a7acd | 8770 | | : e10 e09' |
64a0c779 DN |
8771 | | Empty |
8772 | ||
8773 | e10 e11 e10' | |
8774 | ||
8775 | e10' [ expr ] e10' | |
b77a7acd | 8776 | | Empty |
64a0c779 DN |
8777 | |
8778 | e11 ( expr ) | |
b77a7acd | 8779 | | [ expr ] |
64a0c779 DN |
8780 | | BYTE |
8781 | | WORD | |
8782 | | DWORD | |
9306ca4a | 8783 | | FWORD |
64a0c779 | 8784 | | QWORD |
9306ca4a JB |
8785 | | TBYTE |
8786 | | OWORD | |
8787 | | XMMWORD | |
c0f3af97 | 8788 | | YMMWORD |
64a0c779 DN |
8789 | | . |
8790 | | $ | |
8791 | | register | |
8792 | | id | |
8793 | | constant */ | |
8794 | ||
8795 | /* Parsing structure for the intel syntax parser. Used to implement the | |
8796 | semantic actions for the operand grammar. */ | |
8797 | struct intel_parser_s | |
8798 | { | |
8799 | char *op_string; /* The string being parsed. */ | |
8800 | int got_a_float; /* Whether the operand is a float. */ | |
4a1805b1 | 8801 | int op_modifier; /* Operand modifier. */ |
64a0c779 | 8802 | int is_mem; /* 1 if operand is memory reference. */ |
4eed87de AM |
8803 | int in_offset; /* >=1 if parsing operand of offset. */ |
8804 | int in_bracket; /* >=1 if parsing operand in brackets. */ | |
64a0c779 DN |
8805 | const reg_entry *reg; /* Last register reference found. */ |
8806 | char *disp; /* Displacement string being built. */ | |
a724f0f4 | 8807 | char *next_operand; /* Resume point when splitting operands. */ |
64a0c779 DN |
8808 | }; |
8809 | ||
8810 | static struct intel_parser_s intel_parser; | |
8811 | ||
8812 | /* Token structure for parsing intel syntax. */ | |
8813 | struct intel_token | |
8814 | { | |
8815 | int code; /* Token code. */ | |
8816 | const reg_entry *reg; /* Register entry for register tokens. */ | |
8817 | char *str; /* String representation. */ | |
8818 | }; | |
8819 | ||
8820 | static struct intel_token cur_token, prev_token; | |
8821 | ||
50705ef4 AM |
8822 | /* Token codes for the intel parser. Since T_SHORT is already used |
8823 | by COFF, undefine it first to prevent a warning. */ | |
64a0c779 DN |
8824 | #define T_NIL -1 |
8825 | #define T_CONST 1 | |
8826 | #define T_REG 2 | |
8827 | #define T_BYTE 3 | |
8828 | #define T_WORD 4 | |
9306ca4a JB |
8829 | #define T_DWORD 5 |
8830 | #define T_FWORD 6 | |
8831 | #define T_QWORD 7 | |
8832 | #define T_TBYTE 8 | |
8833 | #define T_XMMWORD 9 | |
50705ef4 | 8834 | #undef T_SHORT |
9306ca4a JB |
8835 | #define T_SHORT 10 |
8836 | #define T_OFFSET 11 | |
8837 | #define T_PTR 12 | |
8838 | #define T_ID 13 | |
8839 | #define T_SHL 14 | |
8840 | #define T_SHR 15 | |
c0f3af97 | 8841 | #define T_YMMWORD 16 |
64a0c779 DN |
8842 | |
8843 | /* Prototypes for intel parser functions. */ | |
e3bb37b5 L |
8844 | static int intel_match_token (int); |
8845 | static void intel_putback_token (void); | |
8846 | static void intel_get_token (void); | |
8847 | static int intel_expr (void); | |
8848 | static int intel_e04 (void); | |
8849 | static int intel_e05 (void); | |
8850 | static int intel_e06 (void); | |
8851 | static int intel_e09 (void); | |
8852 | static int intel_e10 (void); | |
8853 | static int intel_e11 (void); | |
64a0c779 | 8854 | |
64a0c779 | 8855 | static int |
e3bb37b5 | 8856 | i386_intel_operand (char *operand_string, int got_a_float) |
64a0c779 DN |
8857 | { |
8858 | int ret; | |
8859 | char *p; | |
fc0763e6 JB |
8860 | const reg_entry *final_base = i.base_reg; |
8861 | const reg_entry *final_index = i.index_reg; | |
64a0c779 | 8862 | |
a724f0f4 JB |
8863 | p = intel_parser.op_string = xstrdup (operand_string); |
8864 | intel_parser.disp = (char *) xmalloc (strlen (operand_string) + 1); | |
8865 | ||
8866 | for (;;) | |
64a0c779 | 8867 | { |
a724f0f4 JB |
8868 | /* Initialize token holders. */ |
8869 | cur_token.code = prev_token.code = T_NIL; | |
8870 | cur_token.reg = prev_token.reg = NULL; | |
8871 | cur_token.str = prev_token.str = NULL; | |
8872 | ||
8873 | /* Initialize parser structure. */ | |
8874 | intel_parser.got_a_float = got_a_float; | |
8875 | intel_parser.op_modifier = 0; | |
8876 | intel_parser.is_mem = 0; | |
8877 | intel_parser.in_offset = 0; | |
8878 | intel_parser.in_bracket = 0; | |
8879 | intel_parser.reg = NULL; | |
8880 | intel_parser.disp[0] = '\0'; | |
8881 | intel_parser.next_operand = NULL; | |
8882 | ||
fc0763e6 JB |
8883 | i.base_reg = NULL; |
8884 | i.index_reg = NULL; | |
8885 | ||
a724f0f4 JB |
8886 | /* Read the first token and start the parser. */ |
8887 | intel_get_token (); | |
8888 | ret = intel_expr (); | |
8889 | ||
8890 | if (!ret) | |
8891 | break; | |
8892 | ||
9306ca4a JB |
8893 | if (cur_token.code != T_NIL) |
8894 | { | |
8895 | as_bad (_("invalid operand for '%s' ('%s' unexpected)"), | |
8896 | current_templates->start->name, cur_token.str); | |
8897 | ret = 0; | |
8898 | } | |
64a0c779 DN |
8899 | /* If we found a memory reference, hand it over to i386_displacement |
8900 | to fill in the rest of the operand fields. */ | |
9306ca4a | 8901 | else if (intel_parser.is_mem) |
64a0c779 DN |
8902 | { |
8903 | if ((i.mem_operands == 1 | |
40fb9820 | 8904 | && !current_templates->start->opcode_modifier.isstring) |
64a0c779 DN |
8905 | || i.mem_operands == 2) |
8906 | { | |
8907 | as_bad (_("too many memory references for '%s'"), | |
8908 | current_templates->start->name); | |
8909 | ret = 0; | |
8910 | } | |
8911 | else | |
8912 | { | |
8913 | char *s = intel_parser.disp; | |
64a0c779 | 8914 | |
a724f0f4 JB |
8915 | if (!quiet_warnings && intel_parser.is_mem < 0) |
8916 | /* See the comments in intel_bracket_expr. */ | |
8917 | as_warn (_("Treating `%s' as memory reference"), operand_string); | |
8918 | ||
64a0c779 DN |
8919 | /* Add the displacement expression. */ |
8920 | if (*s != '\0') | |
a4622f40 AM |
8921 | ret = i386_displacement (s, s + strlen (s)); |
8922 | if (ret) | |
a724f0f4 JB |
8923 | { |
8924 | /* Swap base and index in 16-bit memory operands like | |
8925 | [si+bx]. Since i386_index_check is also used in AT&T | |
8926 | mode we have to do that here. */ | |
8927 | if (i.base_reg | |
8928 | && i.index_reg | |
40fb9820 L |
8929 | && i.base_reg->reg_type.bitfield.reg16 |
8930 | && i.index_reg->reg_type.bitfield.reg16 | |
a724f0f4 JB |
8931 | && i.base_reg->reg_num >= 6 |
8932 | && i.index_reg->reg_num < 6) | |
8933 | { | |
8934 | const reg_entry *base = i.index_reg; | |
8935 | ||
8936 | i.index_reg = i.base_reg; | |
8937 | i.base_reg = base; | |
8938 | } | |
8939 | ret = i386_index_check (operand_string); | |
8940 | } | |
fc0763e6 JB |
8941 | if (ret) |
8942 | { | |
8943 | i.types[this_operand].bitfield.mem = 1; | |
8944 | i.mem_operands++; | |
8945 | } | |
64a0c779 DN |
8946 | } |
8947 | } | |
8948 | ||
8949 | /* Constant and OFFSET expressions are handled by i386_immediate. */ | |
a724f0f4 | 8950 | else if ((intel_parser.op_modifier & (1 << T_OFFSET)) |
64a0c779 | 8951 | || intel_parser.reg == NULL) |
b7240065 JB |
8952 | { |
8953 | if (i.mem_operands < 2 && i.seg[i.mem_operands]) | |
8954 | { | |
8955 | if (!(intel_parser.op_modifier & (1 << T_OFFSET))) | |
8956 | as_warn (_("Segment override ignored")); | |
8957 | i.seg[i.mem_operands] = NULL; | |
8958 | } | |
8959 | ret = i386_immediate (intel_parser.disp); | |
8960 | } | |
a724f0f4 | 8961 | |
fc0763e6 JB |
8962 | if (!final_base && !final_index) |
8963 | { | |
8964 | final_base = i.base_reg; | |
8965 | final_index = i.index_reg; | |
8966 | } | |
8967 | ||
a724f0f4 | 8968 | if (intel_parser.next_operand && this_operand >= MAX_OPERANDS - 1) |
4eed87de | 8969 | ret = 0; |
a724f0f4 JB |
8970 | if (!ret || !intel_parser.next_operand) |
8971 | break; | |
8972 | intel_parser.op_string = intel_parser.next_operand; | |
8973 | this_operand = i.operands++; | |
7d5e4556 | 8974 | i.types[this_operand].bitfield.unspecified = 1; |
64a0c779 DN |
8975 | } |
8976 | ||
8977 | free (p); | |
8978 | free (intel_parser.disp); | |
8979 | ||
fc0763e6 JB |
8980 | if (final_base || final_index) |
8981 | { | |
8982 | i.base_reg = final_base; | |
8983 | i.index_reg = final_index; | |
8984 | } | |
8985 | ||
64a0c779 DN |
8986 | return ret; |
8987 | } | |
8988 | ||
a724f0f4 JB |
8989 | #define NUM_ADDRESS_REGS (!!i.base_reg + !!i.index_reg) |
8990 | ||
8991 | /* expr e04 expr' | |
8992 | ||
8993 | expr' cmpOp e04 expr' | |
8994 | | Empty */ | |
64a0c779 | 8995 | static int |
e3bb37b5 | 8996 | intel_expr (void) |
64a0c779 | 8997 | { |
a724f0f4 JB |
8998 | /* XXX Implement the comparison operators. */ |
8999 | return intel_e04 (); | |
9306ca4a JB |
9000 | } |
9001 | ||
a724f0f4 | 9002 | /* e04 e05 e04' |
9306ca4a | 9003 | |
a724f0f4 | 9004 | e04' addOp e05 e04' |
9306ca4a JB |
9005 | | Empty */ |
9006 | static int | |
e3bb37b5 | 9007 | intel_e04 (void) |
9306ca4a | 9008 | { |
a724f0f4 | 9009 | int nregs = -1; |
9306ca4a | 9010 | |
a724f0f4 | 9011 | for (;;) |
9306ca4a | 9012 | { |
a724f0f4 JB |
9013 | if (!intel_e05()) |
9014 | return 0; | |
9306ca4a | 9015 | |
a724f0f4 JB |
9016 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
9017 | i.base_reg = i386_regtab + REGNAM_AL; /* al is invalid as base */ | |
9306ca4a | 9018 | |
a724f0f4 JB |
9019 | if (cur_token.code == '+') |
9020 | nregs = -1; | |
9021 | else if (cur_token.code == '-') | |
9022 | nregs = NUM_ADDRESS_REGS; | |
9023 | else | |
9024 | return 1; | |
64a0c779 | 9025 | |
a724f0f4 JB |
9026 | strcat (intel_parser.disp, cur_token.str); |
9027 | intel_match_token (cur_token.code); | |
9028 | } | |
64a0c779 DN |
9029 | } |
9030 | ||
64a0c779 DN |
9031 | /* e05 e06 e05' |
9032 | ||
9306ca4a | 9033 | e05' binOp e06 e05' |
64a0c779 DN |
9034 | | Empty */ |
9035 | static int | |
e3bb37b5 | 9036 | intel_e05 (void) |
64a0c779 | 9037 | { |
a724f0f4 | 9038 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 9039 | |
a724f0f4 | 9040 | for (;;) |
64a0c779 | 9041 | { |
a724f0f4 JB |
9042 | if (!intel_e06()) |
9043 | return 0; | |
9044 | ||
4eed87de AM |
9045 | if (cur_token.code == '&' |
9046 | || cur_token.code == '|' | |
9047 | || cur_token.code == '^') | |
a724f0f4 JB |
9048 | { |
9049 | char str[2]; | |
9050 | ||
9051 | str[0] = cur_token.code; | |
9052 | str[1] = 0; | |
9053 | strcat (intel_parser.disp, str); | |
9054 | } | |
9055 | else | |
9056 | break; | |
9306ca4a | 9057 | |
64a0c779 DN |
9058 | intel_match_token (cur_token.code); |
9059 | ||
a724f0f4 JB |
9060 | if (nregs < 0) |
9061 | nregs = ~nregs; | |
64a0c779 | 9062 | } |
a724f0f4 JB |
9063 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
9064 | i.base_reg = i386_regtab + REGNAM_AL + 1; /* cl is invalid as base */ | |
9065 | return 1; | |
4a1805b1 | 9066 | } |
64a0c779 DN |
9067 | |
9068 | /* e06 e09 e06' | |
9069 | ||
9070 | e06' mulOp e09 e06' | |
b77a7acd | 9071 | | Empty */ |
64a0c779 | 9072 | static int |
e3bb37b5 | 9073 | intel_e06 (void) |
64a0c779 | 9074 | { |
a724f0f4 | 9075 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 9076 | |
a724f0f4 | 9077 | for (;;) |
64a0c779 | 9078 | { |
a724f0f4 JB |
9079 | if (!intel_e09()) |
9080 | return 0; | |
9306ca4a | 9081 | |
4eed87de AM |
9082 | if (cur_token.code == '*' |
9083 | || cur_token.code == '/' | |
9084 | || cur_token.code == '%') | |
a724f0f4 JB |
9085 | { |
9086 | char str[2]; | |
9306ca4a | 9087 | |
a724f0f4 JB |
9088 | str[0] = cur_token.code; |
9089 | str[1] = 0; | |
9090 | strcat (intel_parser.disp, str); | |
9091 | } | |
9092 | else if (cur_token.code == T_SHL) | |
9093 | strcat (intel_parser.disp, "<<"); | |
9094 | else if (cur_token.code == T_SHR) | |
9095 | strcat (intel_parser.disp, ">>"); | |
9096 | else | |
9097 | break; | |
9306ca4a | 9098 | |
64e74474 | 9099 | intel_match_token (cur_token.code); |
64a0c779 | 9100 | |
a724f0f4 JB |
9101 | if (nregs < 0) |
9102 | nregs = ~nregs; | |
64a0c779 | 9103 | } |
a724f0f4 JB |
9104 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
9105 | i.base_reg = i386_regtab + REGNAM_AL + 2; /* dl is invalid as base */ | |
9106 | return 1; | |
64a0c779 DN |
9107 | } |
9108 | ||
a724f0f4 JB |
9109 | /* e09 OFFSET e09 |
9110 | | SHORT e09 | |
9111 | | + e09 | |
9112 | | - e09 | |
9113 | | ~ e09 | |
9114 | | NOT e09 | |
9306ca4a JB |
9115 | | e10 e09' |
9116 | ||
64a0c779 | 9117 | e09' PTR e10 e09' |
b77a7acd | 9118 | | : e10 e09' |
64a0c779 DN |
9119 | | Empty */ |
9120 | static int | |
e3bb37b5 | 9121 | intel_e09 (void) |
64a0c779 | 9122 | { |
a724f0f4 JB |
9123 | int nregs = ~NUM_ADDRESS_REGS; |
9124 | int in_offset = 0; | |
9125 | ||
9126 | for (;;) | |
64a0c779 | 9127 | { |
a724f0f4 JB |
9128 | /* Don't consume constants here. */ |
9129 | if (cur_token.code == '+' || cur_token.code == '-') | |
9130 | { | |
9131 | /* Need to look one token ahead - if the next token | |
9132 | is a constant, the current token is its sign. */ | |
9133 | int next_code; | |
9134 | ||
9135 | intel_match_token (cur_token.code); | |
9136 | next_code = cur_token.code; | |
9137 | intel_putback_token (); | |
9138 | if (next_code == T_CONST) | |
9139 | break; | |
9140 | } | |
9141 | ||
9142 | /* e09 OFFSET e09 */ | |
9143 | if (cur_token.code == T_OFFSET) | |
9144 | { | |
9145 | if (!in_offset++) | |
9146 | ++intel_parser.in_offset; | |
9147 | } | |
9148 | ||
9149 | /* e09 SHORT e09 */ | |
9150 | else if (cur_token.code == T_SHORT) | |
9151 | intel_parser.op_modifier |= 1 << T_SHORT; | |
9152 | ||
9153 | /* e09 + e09 */ | |
9154 | else if (cur_token.code == '+') | |
9155 | strcat (intel_parser.disp, "+"); | |
9156 | ||
9157 | /* e09 - e09 | |
9158 | | ~ e09 | |
9159 | | NOT e09 */ | |
9160 | else if (cur_token.code == '-' || cur_token.code == '~') | |
9161 | { | |
9162 | char str[2]; | |
64a0c779 | 9163 | |
a724f0f4 JB |
9164 | if (nregs < 0) |
9165 | nregs = ~nregs; | |
9166 | str[0] = cur_token.code; | |
9167 | str[1] = 0; | |
9168 | strcat (intel_parser.disp, str); | |
9169 | } | |
9170 | ||
9171 | /* e09 e10 e09' */ | |
9172 | else | |
9173 | break; | |
9174 | ||
9175 | intel_match_token (cur_token.code); | |
64a0c779 DN |
9176 | } |
9177 | ||
a724f0f4 | 9178 | for (;;) |
9306ca4a | 9179 | { |
a724f0f4 JB |
9180 | if (!intel_e10 ()) |
9181 | return 0; | |
9306ca4a | 9182 | |
a724f0f4 JB |
9183 | /* e09' PTR e10 e09' */ |
9184 | if (cur_token.code == T_PTR) | |
9185 | { | |
9186 | char suffix; | |
9306ca4a | 9187 | |
a724f0f4 | 9188 | if (prev_token.code == T_BYTE) |
7d5e4556 L |
9189 | { |
9190 | suffix = BYTE_MNEM_SUFFIX; | |
9191 | i.types[this_operand].bitfield.byte = 1; | |
9192 | } | |
9306ca4a | 9193 | |
a724f0f4 JB |
9194 | else if (prev_token.code == T_WORD) |
9195 | { | |
34b772a6 JB |
9196 | if ((current_templates->start->name[0] == 'l' |
9197 | && current_templates->start->name[2] == 's' | |
9198 | && current_templates->start->name[3] == 0) | |
9199 | || current_templates->start->base_opcode == 0x62 /* bound */) | |
a724f0f4 JB |
9200 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ |
9201 | else if (intel_parser.got_a_float == 2) /* "fi..." */ | |
9202 | suffix = SHORT_MNEM_SUFFIX; | |
9203 | else | |
9204 | suffix = WORD_MNEM_SUFFIX; | |
7d5e4556 | 9205 | i.types[this_operand].bitfield.word = 1; |
a724f0f4 | 9206 | } |
64a0c779 | 9207 | |
a724f0f4 JB |
9208 | else if (prev_token.code == T_DWORD) |
9209 | { | |
34b772a6 JB |
9210 | if ((current_templates->start->name[0] == 'l' |
9211 | && current_templates->start->name[2] == 's' | |
9212 | && current_templates->start->name[3] == 0) | |
9213 | || current_templates->start->base_opcode == 0x62 /* bound */) | |
a724f0f4 JB |
9214 | suffix = WORD_MNEM_SUFFIX; |
9215 | else if (flag_code == CODE_16BIT | |
40fb9820 L |
9216 | && (current_templates->start->opcode_modifier.jump |
9217 | || current_templates->start->opcode_modifier.jumpdword)) | |
a724f0f4 JB |
9218 | suffix = LONG_DOUBLE_MNEM_SUFFIX; |
9219 | else if (intel_parser.got_a_float == 1) /* "f..." */ | |
9220 | suffix = SHORT_MNEM_SUFFIX; | |
9221 | else | |
9222 | suffix = LONG_MNEM_SUFFIX; | |
7d5e4556 | 9223 | i.types[this_operand].bitfield.dword = 1; |
a724f0f4 | 9224 | } |
9306ca4a | 9225 | |
a724f0f4 JB |
9226 | else if (prev_token.code == T_FWORD) |
9227 | { | |
9228 | if (current_templates->start->name[0] == 'l' | |
9229 | && current_templates->start->name[2] == 's' | |
9230 | && current_templates->start->name[3] == 0) | |
9231 | suffix = LONG_MNEM_SUFFIX; | |
9232 | else if (!intel_parser.got_a_float) | |
9233 | { | |
9234 | if (flag_code == CODE_16BIT) | |
9235 | add_prefix (DATA_PREFIX_OPCODE); | |
9236 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
9237 | } | |
9238 | else | |
9239 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
7d5e4556 | 9240 | i.types[this_operand].bitfield.fword = 1; |
a724f0f4 | 9241 | } |
64a0c779 | 9242 | |
a724f0f4 JB |
9243 | else if (prev_token.code == T_QWORD) |
9244 | { | |
34b772a6 JB |
9245 | if (current_templates->start->base_opcode == 0x62 /* bound */ |
9246 | || intel_parser.got_a_float == 1) /* "f..." */ | |
a724f0f4 JB |
9247 | suffix = LONG_MNEM_SUFFIX; |
9248 | else | |
34b772a6 | 9249 | suffix = QWORD_MNEM_SUFFIX; |
7d5e4556 | 9250 | i.types[this_operand].bitfield.qword = 1; |
a724f0f4 | 9251 | } |
64a0c779 | 9252 | |
a724f0f4 JB |
9253 | else if (prev_token.code == T_TBYTE) |
9254 | { | |
9255 | if (intel_parser.got_a_float == 1) | |
9256 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
9257 | else | |
9258 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
9259 | } | |
9306ca4a | 9260 | |
a724f0f4 | 9261 | else if (prev_token.code == T_XMMWORD) |
9306ca4a | 9262 | { |
582d5edd | 9263 | suffix = XMMWORD_MNEM_SUFFIX; |
7d5e4556 | 9264 | i.types[this_operand].bitfield.xmmword = 1; |
9306ca4a | 9265 | } |
64a0c779 | 9266 | |
c0f3af97 L |
9267 | else if (prev_token.code == T_YMMWORD) |
9268 | { | |
9269 | suffix = YMMWORD_MNEM_SUFFIX; | |
9270 | i.types[this_operand].bitfield.ymmword = 1; | |
9271 | } | |
9272 | ||
f16b83df | 9273 | else |
a724f0f4 JB |
9274 | { |
9275 | as_bad (_("Unknown operand modifier `%s'"), prev_token.str); | |
9276 | return 0; | |
9277 | } | |
9278 | ||
7d5e4556 L |
9279 | i.types[this_operand].bitfield.unspecified = 0; |
9280 | ||
435acd52 JB |
9281 | /* Operands for jump/call using 'ptr' notation denote absolute |
9282 | addresses. */ | |
40fb9820 L |
9283 | if (current_templates->start->opcode_modifier.jump |
9284 | || current_templates->start->opcode_modifier.jumpdword) | |
9285 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 9286 | |
a724f0f4 JB |
9287 | if (current_templates->start->base_opcode == 0x8d /* lea */) |
9288 | ; | |
9289 | else if (!i.suffix) | |
9290 | i.suffix = suffix; | |
9291 | else if (i.suffix != suffix) | |
9292 | { | |
9293 | as_bad (_("Conflicting operand modifiers")); | |
9294 | return 0; | |
9295 | } | |
64a0c779 | 9296 | |
9306ca4a JB |
9297 | } |
9298 | ||
a724f0f4 JB |
9299 | /* e09' : e10 e09' */ |
9300 | else if (cur_token.code == ':') | |
9306ca4a | 9301 | { |
a724f0f4 JB |
9302 | if (prev_token.code != T_REG) |
9303 | { | |
9304 | /* While {call,jmp} SSSS:OOOO is MASM syntax only when SSSS is a | |
9305 | segment/group identifier (which we don't have), using comma | |
9306 | as the operand separator there is even less consistent, since | |
9307 | there all branches only have a single operand. */ | |
9308 | if (this_operand != 0 | |
9309 | || intel_parser.in_offset | |
9310 | || intel_parser.in_bracket | |
40fb9820 L |
9311 | || (!current_templates->start->opcode_modifier.jump |
9312 | && !current_templates->start->opcode_modifier.jumpdword | |
9313 | && !current_templates->start->opcode_modifier.jumpintersegment | |
9314 | && !current_templates->start->operand_types[0].bitfield.jumpabsolute)) | |
a724f0f4 JB |
9315 | return intel_match_token (T_NIL); |
9316 | /* Remember the start of the 2nd operand and terminate 1st | |
9317 | operand here. | |
9318 | XXX This isn't right, yet (when SSSS:OOOO is right operand of | |
9319 | another expression), but it gets at least the simplest case | |
9320 | (a plain number or symbol on the left side) right. */ | |
9321 | intel_parser.next_operand = intel_parser.op_string; | |
9322 | *--intel_parser.op_string = '\0'; | |
9323 | return intel_match_token (':'); | |
9324 | } | |
9306ca4a | 9325 | } |
64a0c779 | 9326 | |
a724f0f4 | 9327 | /* e09' Empty */ |
64a0c779 | 9328 | else |
a724f0f4 | 9329 | break; |
64a0c779 | 9330 | |
a724f0f4 JB |
9331 | intel_match_token (cur_token.code); |
9332 | ||
9333 | } | |
9334 | ||
9335 | if (in_offset) | |
9336 | { | |
9337 | --intel_parser.in_offset; | |
9338 | if (nregs < 0) | |
9339 | nregs = ~nregs; | |
9340 | if (NUM_ADDRESS_REGS > nregs) | |
9306ca4a | 9341 | { |
a724f0f4 | 9342 | as_bad (_("Invalid operand to `OFFSET'")); |
9306ca4a JB |
9343 | return 0; |
9344 | } | |
a724f0f4 JB |
9345 | intel_parser.op_modifier |= 1 << T_OFFSET; |
9346 | } | |
9306ca4a | 9347 | |
a724f0f4 JB |
9348 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
9349 | i.base_reg = i386_regtab + REGNAM_AL + 3; /* bl is invalid as base */ | |
9350 | return 1; | |
9351 | } | |
64a0c779 | 9352 | |
a724f0f4 | 9353 | static int |
e3bb37b5 | 9354 | intel_bracket_expr (void) |
a724f0f4 JB |
9355 | { |
9356 | int was_offset = intel_parser.op_modifier & (1 << T_OFFSET); | |
9357 | const char *start = intel_parser.op_string; | |
9358 | int len; | |
9359 | ||
9360 | if (i.op[this_operand].regs) | |
9361 | return intel_match_token (T_NIL); | |
9362 | ||
9363 | intel_match_token ('['); | |
9364 | ||
9365 | /* Mark as a memory operand only if it's not already known to be an | |
9366 | offset expression. If it's an offset expression, we need to keep | |
9367 | the brace in. */ | |
9368 | if (!intel_parser.in_offset) | |
9369 | { | |
9370 | ++intel_parser.in_bracket; | |
435acd52 JB |
9371 | |
9372 | /* Operands for jump/call inside brackets denote absolute addresses. */ | |
40fb9820 L |
9373 | if (current_templates->start->opcode_modifier.jump |
9374 | || current_templates->start->opcode_modifier.jumpdword) | |
9375 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 9376 | |
a724f0f4 JB |
9377 | /* Unfortunately gas always diverged from MASM in a respect that can't |
9378 | be easily fixed without risking to break code sequences likely to be | |
9379 | encountered (the testsuite even check for this): MASM doesn't consider | |
9380 | an expression inside brackets unconditionally as a memory reference. | |
9381 | When that is e.g. a constant, an offset expression, or the sum of the | |
9382 | two, this is still taken as a constant load. gas, however, always | |
9383 | treated these as memory references. As a compromise, we'll try to make | |
9384 | offset expressions inside brackets work the MASM way (since that's | |
9385 | less likely to be found in real world code), but make constants alone | |
9386 | continue to work the traditional gas way. In either case, issue a | |
9387 | warning. */ | |
9388 | intel_parser.op_modifier &= ~was_offset; | |
64a0c779 | 9389 | } |
a724f0f4 | 9390 | else |
64e74474 | 9391 | strcat (intel_parser.disp, "["); |
a724f0f4 JB |
9392 | |
9393 | /* Add a '+' to the displacement string if necessary. */ | |
9394 | if (*intel_parser.disp != '\0' | |
9395 | && *(intel_parser.disp + strlen (intel_parser.disp) - 1) != '+') | |
9396 | strcat (intel_parser.disp, "+"); | |
64a0c779 | 9397 | |
a724f0f4 JB |
9398 | if (intel_expr () |
9399 | && (len = intel_parser.op_string - start - 1, | |
9400 | intel_match_token (']'))) | |
64a0c779 | 9401 | { |
a724f0f4 JB |
9402 | /* Preserve brackets when the operand is an offset expression. */ |
9403 | if (intel_parser.in_offset) | |
9404 | strcat (intel_parser.disp, "]"); | |
9405 | else | |
9406 | { | |
9407 | --intel_parser.in_bracket; | |
9408 | if (i.base_reg || i.index_reg) | |
9409 | intel_parser.is_mem = 1; | |
9410 | if (!intel_parser.is_mem) | |
9411 | { | |
9412 | if (!(intel_parser.op_modifier & (1 << T_OFFSET))) | |
9413 | /* Defer the warning until all of the operand was parsed. */ | |
9414 | intel_parser.is_mem = -1; | |
9415 | else if (!quiet_warnings) | |
4eed87de AM |
9416 | as_warn (_("`[%.*s]' taken to mean just `%.*s'"), |
9417 | len, start, len, start); | |
a724f0f4 JB |
9418 | } |
9419 | } | |
9420 | intel_parser.op_modifier |= was_offset; | |
64a0c779 | 9421 | |
a724f0f4 | 9422 | return 1; |
64a0c779 | 9423 | } |
a724f0f4 | 9424 | return 0; |
64a0c779 DN |
9425 | } |
9426 | ||
9427 | /* e10 e11 e10' | |
9428 | ||
9429 | e10' [ expr ] e10' | |
b77a7acd | 9430 | | Empty */ |
64a0c779 | 9431 | static int |
e3bb37b5 | 9432 | intel_e10 (void) |
64a0c779 | 9433 | { |
a724f0f4 JB |
9434 | if (!intel_e11 ()) |
9435 | return 0; | |
64a0c779 | 9436 | |
a724f0f4 | 9437 | while (cur_token.code == '[') |
64a0c779 | 9438 | { |
a724f0f4 | 9439 | if (!intel_bracket_expr ()) |
21d6c4af | 9440 | return 0; |
64a0c779 DN |
9441 | } |
9442 | ||
a724f0f4 | 9443 | return 1; |
64a0c779 DN |
9444 | } |
9445 | ||
64a0c779 | 9446 | /* e11 ( expr ) |
b77a7acd | 9447 | | [ expr ] |
64a0c779 DN |
9448 | | BYTE |
9449 | | WORD | |
9450 | | DWORD | |
9306ca4a | 9451 | | FWORD |
64a0c779 | 9452 | | QWORD |
9306ca4a JB |
9453 | | TBYTE |
9454 | | OWORD | |
9455 | | XMMWORD | |
c0f3af97 | 9456 | | YMMWORD |
4a1805b1 | 9457 | | $ |
64a0c779 DN |
9458 | | . |
9459 | | register | |
9460 | | id | |
9461 | | constant */ | |
9462 | static int | |
e3bb37b5 | 9463 | intel_e11 (void) |
64a0c779 | 9464 | { |
a724f0f4 | 9465 | switch (cur_token.code) |
64a0c779 | 9466 | { |
a724f0f4 JB |
9467 | /* e11 ( expr ) */ |
9468 | case '(': | |
64a0c779 DN |
9469 | intel_match_token ('('); |
9470 | strcat (intel_parser.disp, "("); | |
9471 | ||
9472 | if (intel_expr () && intel_match_token (')')) | |
e5cb08ac KH |
9473 | { |
9474 | strcat (intel_parser.disp, ")"); | |
9475 | return 1; | |
9476 | } | |
a724f0f4 | 9477 | return 0; |
4a1805b1 | 9478 | |
a724f0f4 JB |
9479 | /* e11 [ expr ] */ |
9480 | case '[': | |
a724f0f4 | 9481 | return intel_bracket_expr (); |
64a0c779 | 9482 | |
a724f0f4 JB |
9483 | /* e11 $ |
9484 | | . */ | |
9485 | case '.': | |
64a0c779 DN |
9486 | strcat (intel_parser.disp, cur_token.str); |
9487 | intel_match_token (cur_token.code); | |
21d6c4af DN |
9488 | |
9489 | /* Mark as a memory operand only if it's not already known to be an | |
9490 | offset expression. */ | |
a724f0f4 | 9491 | if (!intel_parser.in_offset) |
21d6c4af | 9492 | intel_parser.is_mem = 1; |
64a0c779 DN |
9493 | |
9494 | return 1; | |
64a0c779 | 9495 | |
a724f0f4 JB |
9496 | /* e11 register */ |
9497 | case T_REG: | |
9498 | { | |
9499 | const reg_entry *reg = intel_parser.reg = cur_token.reg; | |
64a0c779 | 9500 | |
a724f0f4 | 9501 | intel_match_token (T_REG); |
64a0c779 | 9502 | |
a724f0f4 JB |
9503 | /* Check for segment change. */ |
9504 | if (cur_token.code == ':') | |
9505 | { | |
40fb9820 L |
9506 | if (!reg->reg_type.bitfield.sreg2 |
9507 | && !reg->reg_type.bitfield.sreg3) | |
a724f0f4 | 9508 | { |
4eed87de AM |
9509 | as_bad (_("`%s' is not a valid segment register"), |
9510 | reg->reg_name); | |
a724f0f4 JB |
9511 | return 0; |
9512 | } | |
b7240065 JB |
9513 | else if (i.mem_operands >= 2) |
9514 | as_warn (_("Segment override ignored")); | |
a724f0f4 JB |
9515 | else if (i.seg[i.mem_operands]) |
9516 | as_warn (_("Extra segment override ignored")); | |
9517 | else | |
9518 | { | |
9519 | if (!intel_parser.in_offset) | |
9520 | intel_parser.is_mem = 1; | |
9521 | switch (reg->reg_num) | |
9522 | { | |
9523 | case 0: | |
9524 | i.seg[i.mem_operands] = &es; | |
9525 | break; | |
9526 | case 1: | |
9527 | i.seg[i.mem_operands] = &cs; | |
9528 | break; | |
9529 | case 2: | |
9530 | i.seg[i.mem_operands] = &ss; | |
9531 | break; | |
9532 | case 3: | |
9533 | i.seg[i.mem_operands] = &ds; | |
9534 | break; | |
9535 | case 4: | |
9536 | i.seg[i.mem_operands] = &fs; | |
9537 | break; | |
9538 | case 5: | |
9539 | i.seg[i.mem_operands] = &gs; | |
9540 | break; | |
9541 | } | |
9542 | } | |
9543 | } | |
64a0c779 | 9544 | |
b7240065 JB |
9545 | else if (reg->reg_type.bitfield.sreg3 && reg->reg_num == RegFlat) |
9546 | { | |
9547 | as_bad (_("cannot use `FLAT' here")); | |
9548 | return 0; | |
9549 | } | |
9550 | ||
a724f0f4 JB |
9551 | /* Not a segment register. Check for register scaling. */ |
9552 | else if (cur_token.code == '*') | |
9553 | { | |
9554 | if (!intel_parser.in_bracket) | |
9555 | { | |
9556 | as_bad (_("Register scaling only allowed in memory operands")); | |
9557 | return 0; | |
9558 | } | |
64a0c779 | 9559 | |
40fb9820 | 9560 | if (reg->reg_type.bitfield.reg16) /* Disallow things like [si*1]. */ |
a724f0f4 JB |
9561 | reg = i386_regtab + REGNAM_AX + 4; /* sp is invalid as index */ |
9562 | else if (i.index_reg) | |
9563 | reg = i386_regtab + REGNAM_EAX + 4; /* esp is invalid as index */ | |
64a0c779 | 9564 | |
a724f0f4 JB |
9565 | /* What follows must be a valid scale. */ |
9566 | intel_match_token ('*'); | |
9567 | i.index_reg = reg; | |
40fb9820 | 9568 | i.types[this_operand].bitfield.baseindex = 1; |
64a0c779 | 9569 | |
a724f0f4 JB |
9570 | /* Set the scale after setting the register (otherwise, |
9571 | i386_scale will complain) */ | |
9572 | if (cur_token.code == '+' || cur_token.code == '-') | |
9573 | { | |
9574 | char *str, sign = cur_token.code; | |
9575 | intel_match_token (cur_token.code); | |
9576 | if (cur_token.code != T_CONST) | |
9577 | { | |
9578 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
9579 | cur_token.str); | |
9580 | return 0; | |
9581 | } | |
9582 | str = (char *) xmalloc (strlen (cur_token.str) + 2); | |
9583 | strcpy (str + 1, cur_token.str); | |
9584 | *str = sign; | |
9585 | if (!i386_scale (str)) | |
9586 | return 0; | |
9587 | free (str); | |
9588 | } | |
9589 | else if (!i386_scale (cur_token.str)) | |
64a0c779 | 9590 | return 0; |
a724f0f4 JB |
9591 | intel_match_token (cur_token.code); |
9592 | } | |
64a0c779 | 9593 | |
a724f0f4 JB |
9594 | /* No scaling. If this is a memory operand, the register is either a |
9595 | base register (first occurrence) or an index register (second | |
9596 | occurrence). */ | |
7b0441f6 | 9597 | else if (intel_parser.in_bracket) |
a724f0f4 | 9598 | { |
64a0c779 | 9599 | |
a724f0f4 JB |
9600 | if (!i.base_reg) |
9601 | i.base_reg = reg; | |
9602 | else if (!i.index_reg) | |
9603 | i.index_reg = reg; | |
9604 | else | |
9605 | { | |
9606 | as_bad (_("Too many register references in memory operand")); | |
9607 | return 0; | |
9608 | } | |
64a0c779 | 9609 | |
40fb9820 | 9610 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 | 9611 | } |
4a1805b1 | 9612 | |
4d1bb795 JB |
9613 | /* It's neither base nor index. */ |
9614 | else if (!intel_parser.in_offset && !intel_parser.is_mem) | |
a724f0f4 | 9615 | { |
40fb9820 L |
9616 | i386_operand_type temp = reg->reg_type; |
9617 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
9618 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
9619 | temp); | |
7d5e4556 | 9620 | i.types[this_operand].bitfield.unspecified = 0; |
a724f0f4 JB |
9621 | i.op[this_operand].regs = reg; |
9622 | i.reg_operands++; | |
9623 | } | |
9624 | else | |
9625 | { | |
9626 | as_bad (_("Invalid use of register")); | |
9627 | return 0; | |
9628 | } | |
64a0c779 | 9629 | |
a724f0f4 JB |
9630 | /* Since registers are not part of the displacement string (except |
9631 | when we're parsing offset operands), we may need to remove any | |
9632 | preceding '+' from the displacement string. */ | |
9633 | if (*intel_parser.disp != '\0' | |
9634 | && !intel_parser.in_offset) | |
9635 | { | |
9636 | char *s = intel_parser.disp; | |
9637 | s += strlen (s) - 1; | |
9638 | if (*s == '+') | |
9639 | *s = '\0'; | |
9640 | } | |
4a1805b1 | 9641 | |
a724f0f4 JB |
9642 | return 1; |
9643 | } | |
9644 | ||
9645 | /* e11 BYTE | |
9646 | | WORD | |
9647 | | DWORD | |
9648 | | FWORD | |
9649 | | QWORD | |
9650 | | TBYTE | |
9651 | | OWORD | |
c0f3af97 L |
9652 | | XMMWORD |
9653 | | YMMWORD */ | |
a724f0f4 JB |
9654 | case T_BYTE: |
9655 | case T_WORD: | |
9656 | case T_DWORD: | |
9657 | case T_FWORD: | |
9658 | case T_QWORD: | |
9659 | case T_TBYTE: | |
9660 | case T_XMMWORD: | |
c0f3af97 | 9661 | case T_YMMWORD: |
a724f0f4 | 9662 | intel_match_token (cur_token.code); |
64a0c779 | 9663 | |
a724f0f4 JB |
9664 | if (cur_token.code == T_PTR) |
9665 | return 1; | |
9666 | ||
9667 | /* It must have been an identifier. */ | |
9668 | intel_putback_token (); | |
9669 | cur_token.code = T_ID; | |
9670 | /* FALLTHRU */ | |
9671 | ||
9672 | /* e11 id | |
9673 | | constant */ | |
9674 | case T_ID: | |
9675 | if (!intel_parser.in_offset && intel_parser.is_mem <= 0) | |
9306ca4a JB |
9676 | { |
9677 | symbolS *symbolP; | |
9678 | ||
a724f0f4 JB |
9679 | /* The identifier represents a memory reference only if it's not |
9680 | preceded by an offset modifier and if it's not an equate. */ | |
9306ca4a JB |
9681 | symbolP = symbol_find(cur_token.str); |
9682 | if (!symbolP || S_GET_SEGMENT(symbolP) != absolute_section) | |
9683 | intel_parser.is_mem = 1; | |
9684 | } | |
a724f0f4 | 9685 | /* FALLTHRU */ |
64a0c779 | 9686 | |
a724f0f4 JB |
9687 | case T_CONST: |
9688 | case '-': | |
9689 | case '+': | |
9690 | { | |
9691 | char *save_str, sign = 0; | |
64a0c779 | 9692 | |
a724f0f4 JB |
9693 | /* Allow constants that start with `+' or `-'. */ |
9694 | if (cur_token.code == '-' || cur_token.code == '+') | |
9695 | { | |
9696 | sign = cur_token.code; | |
9697 | intel_match_token (cur_token.code); | |
9698 | if (cur_token.code != T_CONST) | |
9699 | { | |
9700 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
9701 | cur_token.str); | |
9702 | return 0; | |
9703 | } | |
9704 | } | |
64a0c779 | 9705 | |
a724f0f4 JB |
9706 | save_str = (char *) xmalloc (strlen (cur_token.str) + 2); |
9707 | strcpy (save_str + !!sign, cur_token.str); | |
9708 | if (sign) | |
9709 | *save_str = sign; | |
64a0c779 | 9710 | |
a724f0f4 JB |
9711 | /* Get the next token to check for register scaling. */ |
9712 | intel_match_token (cur_token.code); | |
64a0c779 | 9713 | |
4eed87de AM |
9714 | /* Check if this constant is a scaling factor for an |
9715 | index register. */ | |
a724f0f4 JB |
9716 | if (cur_token.code == '*') |
9717 | { | |
9718 | if (intel_match_token ('*') && cur_token.code == T_REG) | |
9719 | { | |
9720 | const reg_entry *reg = cur_token.reg; | |
9721 | ||
9722 | if (!intel_parser.in_bracket) | |
9723 | { | |
4eed87de AM |
9724 | as_bad (_("Register scaling only allowed " |
9725 | "in memory operands")); | |
a724f0f4 JB |
9726 | return 0; |
9727 | } | |
9728 | ||
4eed87de AM |
9729 | /* Disallow things like [1*si]. |
9730 | sp and esp are invalid as index. */ | |
40fb9820 | 9731 | if (reg->reg_type.bitfield.reg16) |
4eed87de | 9732 | reg = i386_regtab + REGNAM_AX + 4; |
a724f0f4 | 9733 | else if (i.index_reg) |
4eed87de | 9734 | reg = i386_regtab + REGNAM_EAX + 4; |
a724f0f4 JB |
9735 | |
9736 | /* The constant is followed by `* reg', so it must be | |
9737 | a valid scale. */ | |
9738 | i.index_reg = reg; | |
40fb9820 | 9739 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 JB |
9740 | |
9741 | /* Set the scale after setting the register (otherwise, | |
9742 | i386_scale will complain) */ | |
9743 | if (!i386_scale (save_str)) | |
64a0c779 | 9744 | return 0; |
a724f0f4 JB |
9745 | intel_match_token (T_REG); |
9746 | ||
9747 | /* Since registers are not part of the displacement | |
9748 | string, we may need to remove any preceding '+' from | |
9749 | the displacement string. */ | |
9750 | if (*intel_parser.disp != '\0') | |
9751 | { | |
9752 | char *s = intel_parser.disp; | |
9753 | s += strlen (s) - 1; | |
9754 | if (*s == '+') | |
9755 | *s = '\0'; | |
9756 | } | |
9757 | ||
9758 | free (save_str); | |
9759 | ||
9760 | return 1; | |
9761 | } | |
64a0c779 | 9762 | |
a724f0f4 JB |
9763 | /* The constant was not used for register scaling. Since we have |
9764 | already consumed the token following `*' we now need to put it | |
9765 | back in the stream. */ | |
64a0c779 | 9766 | intel_putback_token (); |
a724f0f4 | 9767 | } |
64a0c779 | 9768 | |
a724f0f4 JB |
9769 | /* Add the constant to the displacement string. */ |
9770 | strcat (intel_parser.disp, save_str); | |
9771 | free (save_str); | |
64a0c779 | 9772 | |
a724f0f4 JB |
9773 | return 1; |
9774 | } | |
64a0c779 DN |
9775 | } |
9776 | ||
64a0c779 DN |
9777 | as_bad (_("Unrecognized token '%s'"), cur_token.str); |
9778 | return 0; | |
9779 | } | |
9780 | ||
64a0c779 DN |
9781 | /* Match the given token against cur_token. If they match, read the next |
9782 | token from the operand string. */ | |
9783 | static int | |
e3bb37b5 | 9784 | intel_match_token (int code) |
64a0c779 DN |
9785 | { |
9786 | if (cur_token.code == code) | |
9787 | { | |
9788 | intel_get_token (); | |
9789 | return 1; | |
9790 | } | |
9791 | else | |
9792 | { | |
0477af35 | 9793 | as_bad (_("Unexpected token `%s'"), cur_token.str); |
64a0c779 DN |
9794 | return 0; |
9795 | } | |
9796 | } | |
9797 | ||
64a0c779 DN |
9798 | /* Read a new token from intel_parser.op_string and store it in cur_token. */ |
9799 | static void | |
e3bb37b5 | 9800 | intel_get_token (void) |
64a0c779 DN |
9801 | { |
9802 | char *end_op; | |
9803 | const reg_entry *reg; | |
9804 | struct intel_token new_token; | |
9805 | ||
9806 | new_token.code = T_NIL; | |
9807 | new_token.reg = NULL; | |
9808 | new_token.str = NULL; | |
9809 | ||
4a1805b1 | 9810 | /* Free the memory allocated to the previous token and move |
64a0c779 DN |
9811 | cur_token to prev_token. */ |
9812 | if (prev_token.str) | |
9813 | free (prev_token.str); | |
9814 | ||
9815 | prev_token = cur_token; | |
9816 | ||
9817 | /* Skip whitespace. */ | |
9818 | while (is_space_char (*intel_parser.op_string)) | |
9819 | intel_parser.op_string++; | |
9820 | ||
9821 | /* Return an empty token if we find nothing else on the line. */ | |
9822 | if (*intel_parser.op_string == '\0') | |
9823 | { | |
9824 | cur_token = new_token; | |
9825 | return; | |
9826 | } | |
9827 | ||
9828 | /* The new token cannot be larger than the remainder of the operand | |
9829 | string. */ | |
a724f0f4 | 9830 | new_token.str = (char *) xmalloc (strlen (intel_parser.op_string) + 1); |
64a0c779 DN |
9831 | new_token.str[0] = '\0'; |
9832 | ||
9833 | if (strchr ("0123456789", *intel_parser.op_string)) | |
9834 | { | |
9835 | char *p = new_token.str; | |
9836 | char *q = intel_parser.op_string; | |
9837 | new_token.code = T_CONST; | |
9838 | ||
9839 | /* Allow any kind of identifier char to encompass floating point and | |
9840 | hexadecimal numbers. */ | |
9841 | while (is_identifier_char (*q)) | |
9842 | *p++ = *q++; | |
9843 | *p = '\0'; | |
9844 | ||
9845 | /* Recognize special symbol names [0-9][bf]. */ | |
9846 | if (strlen (intel_parser.op_string) == 2 | |
4a1805b1 | 9847 | && (intel_parser.op_string[1] == 'b' |
64a0c779 DN |
9848 | || intel_parser.op_string[1] == 'f')) |
9849 | new_token.code = T_ID; | |
9850 | } | |
9851 | ||
4d1bb795 | 9852 | else if ((reg = parse_register (intel_parser.op_string, &end_op)) != NULL) |
64a0c779 | 9853 | { |
4d1bb795 JB |
9854 | size_t len = end_op - intel_parser.op_string; |
9855 | ||
64a0c779 DN |
9856 | new_token.code = T_REG; |
9857 | new_token.reg = reg; | |
9858 | ||
4d1bb795 JB |
9859 | memcpy (new_token.str, intel_parser.op_string, len); |
9860 | new_token.str[len] = '\0'; | |
64a0c779 DN |
9861 | } |
9862 | ||
9863 | else if (is_identifier_char (*intel_parser.op_string)) | |
9864 | { | |
9865 | char *p = new_token.str; | |
9866 | char *q = intel_parser.op_string; | |
9867 | ||
9868 | /* A '.' or '$' followed by an identifier char is an identifier. | |
9869 | Otherwise, it's operator '.' followed by an expression. */ | |
9870 | if ((*q == '.' || *q == '$') && !is_identifier_char (*(q + 1))) | |
9871 | { | |
9306ca4a JB |
9872 | new_token.code = '.'; |
9873 | new_token.str[0] = '.'; | |
64a0c779 DN |
9874 | new_token.str[1] = '\0'; |
9875 | } | |
9876 | else | |
9877 | { | |
9878 | while (is_identifier_char (*q) || *q == '@') | |
9879 | *p++ = *q++; | |
9880 | *p = '\0'; | |
9881 | ||
9306ca4a JB |
9882 | if (strcasecmp (new_token.str, "NOT") == 0) |
9883 | new_token.code = '~'; | |
9884 | ||
9885 | else if (strcasecmp (new_token.str, "MOD") == 0) | |
9886 | new_token.code = '%'; | |
9887 | ||
9888 | else if (strcasecmp (new_token.str, "AND") == 0) | |
9889 | new_token.code = '&'; | |
9890 | ||
9891 | else if (strcasecmp (new_token.str, "OR") == 0) | |
9892 | new_token.code = '|'; | |
9893 | ||
9894 | else if (strcasecmp (new_token.str, "XOR") == 0) | |
9895 | new_token.code = '^'; | |
9896 | ||
9897 | else if (strcasecmp (new_token.str, "SHL") == 0) | |
9898 | new_token.code = T_SHL; | |
9899 | ||
9900 | else if (strcasecmp (new_token.str, "SHR") == 0) | |
9901 | new_token.code = T_SHR; | |
9902 | ||
9903 | else if (strcasecmp (new_token.str, "BYTE") == 0) | |
64a0c779 DN |
9904 | new_token.code = T_BYTE; |
9905 | ||
9906 | else if (strcasecmp (new_token.str, "WORD") == 0) | |
9907 | new_token.code = T_WORD; | |
9908 | ||
9909 | else if (strcasecmp (new_token.str, "DWORD") == 0) | |
9910 | new_token.code = T_DWORD; | |
9911 | ||
9306ca4a JB |
9912 | else if (strcasecmp (new_token.str, "FWORD") == 0) |
9913 | new_token.code = T_FWORD; | |
9914 | ||
64a0c779 DN |
9915 | else if (strcasecmp (new_token.str, "QWORD") == 0) |
9916 | new_token.code = T_QWORD; | |
9917 | ||
9306ca4a JB |
9918 | else if (strcasecmp (new_token.str, "TBYTE") == 0 |
9919 | /* XXX remove (gcc still uses it) */ | |
9920 | || strcasecmp (new_token.str, "XWORD") == 0) | |
9921 | new_token.code = T_TBYTE; | |
9922 | ||
9923 | else if (strcasecmp (new_token.str, "XMMWORD") == 0 | |
9924 | || strcasecmp (new_token.str, "OWORD") == 0) | |
9925 | new_token.code = T_XMMWORD; | |
64a0c779 | 9926 | |
c0f3af97 L |
9927 | else if (strcasecmp (new_token.str, "YMMWORD") == 0) |
9928 | new_token.code = T_YMMWORD; | |
9929 | ||
64a0c779 DN |
9930 | else if (strcasecmp (new_token.str, "PTR") == 0) |
9931 | new_token.code = T_PTR; | |
9932 | ||
9933 | else if (strcasecmp (new_token.str, "SHORT") == 0) | |
9934 | new_token.code = T_SHORT; | |
9935 | ||
9936 | else if (strcasecmp (new_token.str, "OFFSET") == 0) | |
9937 | { | |
9938 | new_token.code = T_OFFSET; | |
9939 | ||
9940 | /* ??? This is not mentioned in the MASM grammar but gcc | |
9941 | makes use of it with -mintel-syntax. OFFSET may be | |
9942 | followed by FLAT: */ | |
9943 | if (strncasecmp (q, " FLAT:", 6) == 0) | |
9944 | strcat (new_token.str, " FLAT:"); | |
9945 | } | |
9946 | ||
64a0c779 DN |
9947 | else |
9948 | new_token.code = T_ID; | |
9949 | } | |
9950 | } | |
9951 | ||
9306ca4a JB |
9952 | else if (strchr ("+-/*%|&^:[]()~", *intel_parser.op_string)) |
9953 | { | |
9954 | new_token.code = *intel_parser.op_string; | |
9955 | new_token.str[0] = *intel_parser.op_string; | |
9956 | new_token.str[1] = '\0'; | |
9957 | } | |
9958 | ||
9959 | else if (strchr ("<>", *intel_parser.op_string) | |
9960 | && *intel_parser.op_string == *(intel_parser.op_string + 1)) | |
9961 | { | |
9962 | new_token.code = *intel_parser.op_string == '<' ? T_SHL : T_SHR; | |
9963 | new_token.str[0] = *intel_parser.op_string; | |
9964 | new_token.str[1] = *intel_parser.op_string; | |
9965 | new_token.str[2] = '\0'; | |
9966 | } | |
9967 | ||
64a0c779 | 9968 | else |
0477af35 | 9969 | as_bad (_("Unrecognized token `%s'"), intel_parser.op_string); |
64a0c779 DN |
9970 | |
9971 | intel_parser.op_string += strlen (new_token.str); | |
9972 | cur_token = new_token; | |
9973 | } | |
9974 | ||
64a0c779 DN |
9975 | /* Put cur_token back into the token stream and make cur_token point to |
9976 | prev_token. */ | |
9977 | static void | |
e3bb37b5 | 9978 | intel_putback_token (void) |
64a0c779 | 9979 | { |
a724f0f4 JB |
9980 | if (cur_token.code != T_NIL) |
9981 | { | |
9982 | intel_parser.op_string -= strlen (cur_token.str); | |
9983 | free (cur_token.str); | |
9984 | } | |
64a0c779 | 9985 | cur_token = prev_token; |
4a1805b1 | 9986 | |
64a0c779 DN |
9987 | /* Forget prev_token. */ |
9988 | prev_token.code = T_NIL; | |
9989 | prev_token.reg = NULL; | |
9990 | prev_token.str = NULL; | |
9991 | } | |
54cfded0 | 9992 | |
a60de03c JB |
9993 | void |
9994 | tc_x86_parse_to_dw2regnum (expressionS *exp) | |
54cfded0 | 9995 | { |
a60de03c JB |
9996 | int saved_naked_reg; |
9997 | char saved_register_dot; | |
54cfded0 | 9998 | |
a60de03c JB |
9999 | saved_naked_reg = allow_naked_reg; |
10000 | allow_naked_reg = 1; | |
10001 | saved_register_dot = register_chars['.']; | |
10002 | register_chars['.'] = '.'; | |
10003 | allow_pseudo_reg = 1; | |
10004 | expression_and_evaluate (exp); | |
10005 | allow_pseudo_reg = 0; | |
10006 | register_chars['.'] = saved_register_dot; | |
10007 | allow_naked_reg = saved_naked_reg; | |
10008 | ||
10009 | if (exp->X_op == O_register && exp->X_add_number >= 0) | |
54cfded0 | 10010 | { |
a60de03c JB |
10011 | if ((addressT) exp->X_add_number < i386_regtab_size) |
10012 | { | |
10013 | exp->X_op = O_constant; | |
10014 | exp->X_add_number = i386_regtab[exp->X_add_number] | |
10015 | .dw2_regnum[flag_code >> 1]; | |
10016 | } | |
10017 | else | |
10018 | exp->X_op = O_illegal; | |
54cfded0 | 10019 | } |
54cfded0 AM |
10020 | } |
10021 | ||
10022 | void | |
10023 | tc_x86_frame_initial_instructions (void) | |
10024 | { | |
a60de03c JB |
10025 | static unsigned int sp_regno[2]; |
10026 | ||
10027 | if (!sp_regno[flag_code >> 1]) | |
10028 | { | |
10029 | char *saved_input = input_line_pointer; | |
10030 | char sp[][4] = {"esp", "rsp"}; | |
10031 | expressionS exp; | |
a4447b93 | 10032 | |
a60de03c JB |
10033 | input_line_pointer = sp[flag_code >> 1]; |
10034 | tc_x86_parse_to_dw2regnum (&exp); | |
10035 | assert (exp.X_op == O_constant); | |
10036 | sp_regno[flag_code >> 1] = exp.X_add_number; | |
10037 | input_line_pointer = saved_input; | |
10038 | } | |
a4447b93 | 10039 | |
a60de03c | 10040 | cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment); |
a4447b93 | 10041 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); |
54cfded0 | 10042 | } |
d2b2c203 DJ |
10043 | |
10044 | int | |
10045 | i386_elf_section_type (const char *str, size_t len) | |
10046 | { | |
10047 | if (flag_code == CODE_64BIT | |
10048 | && len == sizeof ("unwind") - 1 | |
10049 | && strncmp (str, "unwind", 6) == 0) | |
10050 | return SHT_X86_64_UNWIND; | |
10051 | ||
10052 | return -1; | |
10053 | } | |
bb41ade5 | 10054 | |
ad5fec3b EB |
10055 | #ifdef TE_SOLARIS |
10056 | void | |
10057 | i386_solaris_fix_up_eh_frame (segT sec) | |
10058 | { | |
10059 | if (flag_code == CODE_64BIT) | |
10060 | elf_section_type (sec) = SHT_X86_64_UNWIND; | |
10061 | } | |
10062 | #endif | |
10063 | ||
bb41ade5 AM |
10064 | #ifdef TE_PE |
10065 | void | |
10066 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
10067 | { | |
10068 | expressionS expr; | |
10069 | ||
10070 | expr.X_op = O_secrel; | |
10071 | expr.X_add_symbol = symbol; | |
10072 | expr.X_add_number = 0; | |
10073 | emit_expr (&expr, size); | |
10074 | } | |
10075 | #endif | |
3b22753a L |
10076 | |
10077 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
10078 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
10079 | ||
01e1a5bc | 10080 | bfd_vma |
3b22753a L |
10081 | x86_64_section_letter (int letter, char **ptr_msg) |
10082 | { | |
10083 | if (flag_code == CODE_64BIT) | |
10084 | { | |
10085 | if (letter == 'l') | |
10086 | return SHF_X86_64_LARGE; | |
10087 | ||
10088 | *ptr_msg = _("Bad .section directive: want a,l,w,x,M,S,G,T in string"); | |
64e74474 | 10089 | } |
3b22753a | 10090 | else |
64e74474 | 10091 | *ptr_msg = _("Bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
10092 | return -1; |
10093 | } | |
10094 | ||
01e1a5bc | 10095 | bfd_vma |
3b22753a L |
10096 | x86_64_section_word (char *str, size_t len) |
10097 | { | |
8620418b | 10098 | if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large")) |
3b22753a L |
10099 | return SHF_X86_64_LARGE; |
10100 | ||
10101 | return -1; | |
10102 | } | |
10103 | ||
10104 | static void | |
10105 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
10106 | { | |
10107 | if (flag_code != CODE_64BIT) | |
10108 | { | |
10109 | s_comm_internal (0, elf_common_parse); | |
10110 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
10111 | } | |
10112 | else | |
10113 | { | |
10114 | static segT lbss_section; | |
10115 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
10116 | asection *saved_bss_section = bss_section; | |
10117 | ||
10118 | if (lbss_section == NULL) | |
10119 | { | |
10120 | flagword applicable; | |
10121 | segT seg = now_seg; | |
10122 | subsegT subseg = now_subseg; | |
10123 | ||
10124 | /* The .lbss section is for local .largecomm symbols. */ | |
10125 | lbss_section = subseg_new (".lbss", 0); | |
10126 | applicable = bfd_applicable_section_flags (stdoutput); | |
10127 | bfd_set_section_flags (stdoutput, lbss_section, | |
10128 | applicable & SEC_ALLOC); | |
10129 | seg_info (lbss_section)->bss = 1; | |
10130 | ||
10131 | subseg_set (seg, subseg); | |
10132 | } | |
10133 | ||
10134 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
10135 | bss_section = lbss_section; | |
10136 | ||
10137 | s_comm_internal (0, elf_common_parse); | |
10138 | ||
10139 | elf_com_section_ptr = saved_com_section_ptr; | |
10140 | bss_section = saved_bss_section; | |
10141 | } | |
10142 | } | |
10143 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |