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, |
5dd15031 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
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 | ||
153 | enum processor_type | |
154 | { | |
155 | PROCESSOR_UNKNOWN, | |
156 | PROCESSOR_I386, | |
157 | PROCESSOR_I486, | |
158 | PROCESSOR_PENTIUM, | |
159 | PROCESSOR_PENTIUMPRO, | |
160 | PROCESSOR_PENTIUM4, | |
161 | PROCESSOR_NOCONA, | |
162 | PROCESSOR_CORE, | |
163 | PROCESSOR_CORE2, | |
164 | PROCESSOR_K6, | |
165 | PROCESSOR_ATHLON, | |
166 | PROCESSOR_K8, | |
167 | PROCESSOR_GENERIC32, | |
168 | PROCESSOR_GENERIC64, | |
169 | PROCESSOR_AMDFAM10 | |
170 | }; | |
171 | ||
172 | /* x86 arch names, types and features */ | |
173 | typedef struct | |
174 | { | |
175 | const char *name; /* arch name */ | |
176 | enum processor_type type; /* arch type */ | |
177 | i386_cpu_flags flags; /* cpu feature flags */ | |
178 | } | |
179 | arch_entry; | |
180 | ||
e3bb37b5 L |
181 | static void set_code_flag (int); |
182 | static void set_16bit_gcc_code_flag (int); | |
183 | static void set_intel_syntax (int); | |
1efbbeb4 | 184 | static void set_intel_mnemonic (int); |
db51cc60 | 185 | static void set_allow_index_reg (int); |
e3bb37b5 | 186 | static void set_cpu_arch (int); |
6482c264 | 187 | #ifdef TE_PE |
e3bb37b5 | 188 | static void pe_directive_secrel (int); |
6482c264 | 189 | #endif |
e3bb37b5 L |
190 | static void signed_cons (int); |
191 | static char *output_invalid (int c); | |
a7619375 | 192 | static int i386_att_operand (char *); |
e3bb37b5 L |
193 | static int i386_intel_operand (char *, int); |
194 | static const reg_entry *parse_register (char *, char **); | |
195 | static char *parse_insn (char *, char *); | |
196 | static char *parse_operands (char *, const char *); | |
197 | static void swap_operands (void); | |
4d456e3d | 198 | static void swap_2_operands (int, int); |
e3bb37b5 L |
199 | static void optimize_imm (void); |
200 | static void optimize_disp (void); | |
201 | static int match_template (void); | |
202 | static int check_string (void); | |
203 | static int process_suffix (void); | |
204 | static int check_byte_reg (void); | |
205 | static int check_long_reg (void); | |
206 | static int check_qword_reg (void); | |
207 | static int check_word_reg (void); | |
208 | static int finalize_imm (void); | |
85f10a01 | 209 | static void process_drex (void); |
e3bb37b5 L |
210 | static int process_operands (void); |
211 | static const seg_entry *build_modrm_byte (void); | |
212 | static void output_insn (void); | |
213 | static void output_imm (fragS *, offsetT); | |
214 | static void output_disp (fragS *, offsetT); | |
29b0f896 | 215 | #ifndef I386COFF |
e3bb37b5 | 216 | static void s_bss (int); |
252b5132 | 217 | #endif |
17d4e2a2 L |
218 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
219 | static void handle_large_common (int small ATTRIBUTE_UNUSED); | |
220 | #endif | |
252b5132 | 221 | |
a847613f | 222 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 223 | |
c0f3af97 L |
224 | /* VEX prefix. */ |
225 | typedef struct | |
226 | { | |
227 | /* VEX prefix is either 2 byte or 3 byte. */ | |
228 | unsigned char bytes[3]; | |
229 | unsigned int length; | |
230 | /* Destination or source register specifier. */ | |
231 | const reg_entry *register_specifier; | |
232 | } vex_prefix; | |
233 | ||
252b5132 | 234 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 235 | i386_insn. */ |
252b5132 | 236 | |
520dc8e8 AM |
237 | union i386_op |
238 | { | |
239 | expressionS *disps; | |
240 | expressionS *imms; | |
241 | const reg_entry *regs; | |
242 | }; | |
243 | ||
252b5132 RH |
244 | struct _i386_insn |
245 | { | |
47926f60 | 246 | /* TM holds the template for the insn were currently assembling. */ |
252b5132 RH |
247 | template tm; |
248 | ||
7d5e4556 L |
249 | /* SUFFIX holds the instruction size suffix for byte, word, dword |
250 | or qword, if given. */ | |
252b5132 RH |
251 | char suffix; |
252 | ||
47926f60 | 253 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
254 | unsigned int operands; |
255 | ||
256 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
257 | of given register, displacement, memory operands and immediate | |
47926f60 | 258 | operands. */ |
252b5132 RH |
259 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
260 | ||
261 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 262 | use OP[i] for the corresponding operand. */ |
40fb9820 | 263 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 264 | |
520dc8e8 AM |
265 | /* Displacement expression, immediate expression, or register for each |
266 | operand. */ | |
267 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 268 | |
3e73aa7c JH |
269 | /* Flags for operands. */ |
270 | unsigned int flags[MAX_OPERANDS]; | |
271 | #define Operand_PCrel 1 | |
272 | ||
252b5132 | 273 | /* Relocation type for operand */ |
f86103b7 | 274 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 275 | |
252b5132 RH |
276 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
277 | the base index byte below. */ | |
278 | const reg_entry *base_reg; | |
279 | const reg_entry *index_reg; | |
280 | unsigned int log2_scale_factor; | |
281 | ||
282 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 283 | explicit segment overrides are given. */ |
ce8a8b2f | 284 | const seg_entry *seg[2]; |
252b5132 RH |
285 | |
286 | /* PREFIX holds all the given prefix opcodes (usually null). | |
287 | PREFIXES is the number of prefix opcodes. */ | |
288 | unsigned int prefixes; | |
289 | unsigned char prefix[MAX_PREFIXES]; | |
290 | ||
291 | /* RM and SIB are the modrm byte and the sib byte where the | |
85f10a01 MM |
292 | addressing modes of this insn are encoded. DREX is the byte |
293 | added by the SSE5 instructions. */ | |
252b5132 RH |
294 | |
295 | modrm_byte rm; | |
3e73aa7c | 296 | rex_byte rex; |
252b5132 | 297 | sib_byte sib; |
85f10a01 | 298 | drex_byte drex; |
c0f3af97 | 299 | vex_prefix vex; |
252b5132 RH |
300 | }; |
301 | ||
302 | typedef struct _i386_insn i386_insn; | |
303 | ||
304 | /* List of chars besides those in app.c:symbol_chars that can start an | |
305 | operand. Used to prevent the scrubber eating vital white-space. */ | |
32137342 | 306 | const char extra_symbol_chars[] = "*%-([" |
252b5132 | 307 | #ifdef LEX_AT |
32137342 NC |
308 | "@" |
309 | #endif | |
310 | #ifdef LEX_QM | |
311 | "?" | |
252b5132 | 312 | #endif |
32137342 | 313 | ; |
252b5132 | 314 | |
29b0f896 AM |
315 | #if (defined (TE_I386AIX) \ |
316 | || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ | |
3896cfd5 | 317 | && !defined (TE_GNU) \ |
29b0f896 | 318 | && !defined (TE_LINUX) \ |
32137342 | 319 | && !defined (TE_NETWARE) \ |
29b0f896 AM |
320 | && !defined (TE_FreeBSD) \ |
321 | && !defined (TE_NetBSD))) | |
252b5132 | 322 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
323 | pre-processor is disabled, these aren't very useful. The option |
324 | --divide will remove '/' from this list. */ | |
325 | const char *i386_comment_chars = "#/"; | |
326 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 327 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 328 | |
b3b91714 AM |
329 | #else |
330 | const char *i386_comment_chars = "#"; | |
331 | #define PREFIX_SEPARATOR '/' | |
332 | #endif | |
333 | ||
252b5132 RH |
334 | /* This array holds the chars that only start a comment at the beginning of |
335 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
336 | .line and .file directives will appear in the pre-processed output. |
337 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 338 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
339 | #NO_APP at the beginning of its output. |
340 | Also note that comments started like this one will always work if | |
252b5132 | 341 | '/' isn't otherwise defined. */ |
b3b91714 | 342 | const char line_comment_chars[] = "#/"; |
252b5132 | 343 | |
63a0b638 | 344 | const char line_separator_chars[] = ";"; |
252b5132 | 345 | |
ce8a8b2f AM |
346 | /* Chars that can be used to separate mant from exp in floating point |
347 | nums. */ | |
252b5132 RH |
348 | const char EXP_CHARS[] = "eE"; |
349 | ||
ce8a8b2f AM |
350 | /* Chars that mean this number is a floating point constant |
351 | As in 0f12.456 | |
352 | or 0d1.2345e12. */ | |
252b5132 RH |
353 | const char FLT_CHARS[] = "fFdDxX"; |
354 | ||
ce8a8b2f | 355 | /* Tables for lexical analysis. */ |
252b5132 RH |
356 | static char mnemonic_chars[256]; |
357 | static char register_chars[256]; | |
358 | static char operand_chars[256]; | |
359 | static char identifier_chars[256]; | |
360 | static char digit_chars[256]; | |
361 | ||
ce8a8b2f | 362 | /* Lexical macros. */ |
252b5132 RH |
363 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
364 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
365 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
366 | #define is_space_char(x) ((x) == ' ') | |
367 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
368 | #define is_digit_char(x) (digit_chars[(unsigned char) x]) | |
369 | ||
0234cb7c | 370 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
371 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
372 | ||
373 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
374 | effect this we maintain a stack of saved characters that we've smashed | |
375 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 376 | assembler instruction). */ |
252b5132 | 377 | static char save_stack[32]; |
ce8a8b2f | 378 | static char *save_stack_p; |
252b5132 RH |
379 | #define END_STRING_AND_SAVE(s) \ |
380 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
381 | #define RESTORE_END_STRING(s) \ | |
382 | do { *(s) = *--save_stack_p; } while (0) | |
383 | ||
47926f60 | 384 | /* The instruction we're assembling. */ |
252b5132 RH |
385 | static i386_insn i; |
386 | ||
387 | /* Possible templates for current insn. */ | |
388 | static const templates *current_templates; | |
389 | ||
31b2323c L |
390 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
391 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
392 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 393 | |
47926f60 KH |
394 | /* Current operand we are working on. */ |
395 | static int this_operand; | |
252b5132 | 396 | |
3e73aa7c JH |
397 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
398 | these. */ | |
399 | ||
400 | enum flag_code { | |
401 | CODE_32BIT, | |
402 | CODE_16BIT, | |
403 | CODE_64BIT }; | |
404 | ||
405 | static enum flag_code flag_code; | |
4fa24527 | 406 | static unsigned int object_64bit; |
3e73aa7c JH |
407 | static int use_rela_relocations = 0; |
408 | ||
409 | /* The names used to print error messages. */ | |
b77a7acd | 410 | static const char *flag_code_names[] = |
3e73aa7c JH |
411 | { |
412 | "32", | |
413 | "16", | |
414 | "64" | |
415 | }; | |
252b5132 | 416 | |
47926f60 KH |
417 | /* 1 for intel syntax, |
418 | 0 if att syntax. */ | |
419 | static int intel_syntax = 0; | |
252b5132 | 420 | |
1efbbeb4 L |
421 | /* 1 for intel mnemonic, |
422 | 0 if att mnemonic. */ | |
423 | static int intel_mnemonic = !SYSV386_COMPAT; | |
424 | ||
5209009a | 425 | /* 1 if support old (<= 2.8.1) versions of gcc. */ |
1efbbeb4 L |
426 | static int old_gcc = OLDGCC_COMPAT; |
427 | ||
a60de03c JB |
428 | /* 1 if pseudo registers are permitted. */ |
429 | static int allow_pseudo_reg = 0; | |
430 | ||
47926f60 KH |
431 | /* 1 if register prefix % not required. */ |
432 | static int allow_naked_reg = 0; | |
252b5132 | 433 | |
ba104c83 | 434 | /* 1 if pseudo index register, eiz/riz, is allowed . */ |
db51cc60 L |
435 | static int allow_index_reg = 0; |
436 | ||
2ca3ace5 L |
437 | /* Register prefix used for error message. */ |
438 | static const char *register_prefix = "%"; | |
439 | ||
47926f60 KH |
440 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
441 | leave, push, and pop instructions so that gcc has the same stack | |
442 | frame as in 32 bit mode. */ | |
443 | static char stackop_size = '\0'; | |
eecb386c | 444 | |
12b55ccc L |
445 | /* Non-zero to optimize code alignment. */ |
446 | int optimize_align_code = 1; | |
447 | ||
47926f60 KH |
448 | /* Non-zero to quieten some warnings. */ |
449 | static int quiet_warnings = 0; | |
a38cf1db | 450 | |
47926f60 KH |
451 | /* CPU name. */ |
452 | static const char *cpu_arch_name = NULL; | |
6305a203 | 453 | static char *cpu_sub_arch_name = NULL; |
a38cf1db | 454 | |
47926f60 | 455 | /* CPU feature flags. */ |
40fb9820 L |
456 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
457 | ||
ccc9c027 L |
458 | /* If we have selected a cpu we are generating instructions for. */ |
459 | static int cpu_arch_tune_set = 0; | |
460 | ||
9103f4f4 L |
461 | /* Cpu we are generating instructions for. */ |
462 | static enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; | |
463 | ||
464 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 465 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 466 | |
ccc9c027 L |
467 | /* CPU instruction set architecture used. */ |
468 | static enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; | |
469 | ||
9103f4f4 | 470 | /* CPU feature flags of instruction set architecture used. */ |
40fb9820 | 471 | static i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 472 | |
fddf5b5b AM |
473 | /* If set, conditional jumps are not automatically promoted to handle |
474 | larger than a byte offset. */ | |
475 | static unsigned int no_cond_jump_promotion = 0; | |
476 | ||
c0f3af97 L |
477 | /* Encode SSE instructions with VEX prefix. */ |
478 | static unsigned int sse2avx; | |
479 | ||
29b0f896 | 480 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 481 | static symbolS *GOT_symbol; |
29b0f896 | 482 | |
a4447b93 RH |
483 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
484 | unsigned int x86_dwarf2_return_column; | |
485 | ||
486 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
487 | int x86_cie_data_alignment; | |
488 | ||
252b5132 | 489 | /* Interface to relax_segment. |
fddf5b5b AM |
490 | There are 3 major relax states for 386 jump insns because the |
491 | different types of jumps add different sizes to frags when we're | |
492 | figuring out what sort of jump to choose to reach a given label. */ | |
252b5132 | 493 | |
47926f60 | 494 | /* Types. */ |
93c2a809 AM |
495 | #define UNCOND_JUMP 0 |
496 | #define COND_JUMP 1 | |
497 | #define COND_JUMP86 2 | |
fddf5b5b | 498 | |
47926f60 | 499 | /* Sizes. */ |
252b5132 RH |
500 | #define CODE16 1 |
501 | #define SMALL 0 | |
29b0f896 | 502 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 503 | #define BIG 2 |
29b0f896 | 504 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
505 | |
506 | #ifndef INLINE | |
507 | #ifdef __GNUC__ | |
508 | #define INLINE __inline__ | |
509 | #else | |
510 | #define INLINE | |
511 | #endif | |
512 | #endif | |
513 | ||
fddf5b5b AM |
514 | #define ENCODE_RELAX_STATE(type, size) \ |
515 | ((relax_substateT) (((type) << 2) | (size))) | |
516 | #define TYPE_FROM_RELAX_STATE(s) \ | |
517 | ((s) >> 2) | |
518 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
519 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
520 | |
521 | /* This table is used by relax_frag to promote short jumps to long | |
522 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
523 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
524 | don't allow a short jump in a 32 bit code segment to be promoted to | |
525 | a 16 bit offset jump because it's slower (requires data size | |
526 | prefix), and doesn't work, unless the destination is in the bottom | |
527 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
528 | ||
529 | const relax_typeS md_relax_table[] = | |
530 | { | |
24eab124 AM |
531 | /* The fields are: |
532 | 1) most positive reach of this state, | |
533 | 2) most negative reach of this state, | |
93c2a809 | 534 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 535 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 536 | |
fddf5b5b | 537 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
538 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
539 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
540 | /* dword jmp adds 4 bytes to frag: | |
541 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 542 | {0, 0, 4, 0}, |
93c2a809 AM |
543 | /* word jmp adds 2 byte2 to frag: |
544 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
545 | {0, 0, 2, 0}, |
546 | ||
93c2a809 AM |
547 | /* COND_JUMP states. */ |
548 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
549 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
550 | /* dword conditionals adds 5 bytes to frag: | |
551 | 1 extra opcode byte, 4 displacement bytes. */ | |
552 | {0, 0, 5, 0}, | |
fddf5b5b | 553 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
554 | 1 extra opcode byte, 2 displacement bytes. */ |
555 | {0, 0, 3, 0}, | |
556 | ||
557 | /* COND_JUMP86 states. */ | |
558 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
559 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
560 | /* dword conditionals adds 5 bytes to frag: | |
561 | 1 extra opcode byte, 4 displacement bytes. */ | |
562 | {0, 0, 5, 0}, | |
563 | /* word conditionals add 4 bytes to frag: | |
564 | 1 displacement byte and a 3 byte long branch insn. */ | |
565 | {0, 0, 4, 0} | |
252b5132 RH |
566 | }; |
567 | ||
9103f4f4 L |
568 | static const arch_entry cpu_arch[] = |
569 | { | |
6305a203 L |
570 | { "generic32", PROCESSOR_GENERIC32, |
571 | CPU_GENERIC32_FLAGS }, | |
572 | { "generic64", PROCESSOR_GENERIC64, | |
573 | CPU_GENERIC64_FLAGS }, | |
574 | { "i8086", PROCESSOR_UNKNOWN, | |
575 | CPU_NONE_FLAGS }, | |
576 | { "i186", PROCESSOR_UNKNOWN, | |
577 | CPU_I186_FLAGS }, | |
578 | { "i286", PROCESSOR_UNKNOWN, | |
579 | CPU_I286_FLAGS }, | |
580 | { "i386", PROCESSOR_I386, | |
581 | CPU_I386_FLAGS }, | |
582 | { "i486", PROCESSOR_I486, | |
583 | CPU_I486_FLAGS }, | |
584 | { "i586", PROCESSOR_PENTIUM, | |
585 | CPU_I586_FLAGS }, | |
586 | { "i686", PROCESSOR_PENTIUMPRO, | |
587 | CPU_I686_FLAGS }, | |
588 | { "pentium", PROCESSOR_PENTIUM, | |
589 | CPU_I586_FLAGS }, | |
590 | { "pentiumpro", PROCESSOR_PENTIUMPRO, | |
591 | CPU_I686_FLAGS }, | |
592 | { "pentiumii", PROCESSOR_PENTIUMPRO, | |
593 | CPU_P2_FLAGS }, | |
594 | { "pentiumiii",PROCESSOR_PENTIUMPRO, | |
595 | CPU_P3_FLAGS }, | |
596 | { "pentium4", PROCESSOR_PENTIUM4, | |
597 | CPU_P4_FLAGS }, | |
598 | { "prescott", PROCESSOR_NOCONA, | |
599 | CPU_CORE_FLAGS }, | |
600 | { "nocona", PROCESSOR_NOCONA, | |
601 | CPU_NOCONA_FLAGS }, | |
602 | { "yonah", PROCESSOR_CORE, | |
603 | CPU_CORE_FLAGS }, | |
604 | { "core", PROCESSOR_CORE, | |
605 | CPU_CORE_FLAGS }, | |
606 | { "merom", PROCESSOR_CORE2, | |
607 | CPU_CORE2_FLAGS }, | |
608 | { "core2", PROCESSOR_CORE2, | |
609 | CPU_CORE2_FLAGS }, | |
610 | { "k6", PROCESSOR_K6, | |
611 | CPU_K6_FLAGS }, | |
612 | { "k6_2", PROCESSOR_K6, | |
613 | CPU_K6_2_FLAGS }, | |
614 | { "athlon", PROCESSOR_ATHLON, | |
615 | CPU_ATHLON_FLAGS }, | |
616 | { "sledgehammer", PROCESSOR_K8, | |
617 | CPU_K8_FLAGS }, | |
618 | { "opteron", PROCESSOR_K8, | |
619 | CPU_K8_FLAGS }, | |
620 | { "k8", PROCESSOR_K8, | |
621 | CPU_K8_FLAGS }, | |
622 | { "amdfam10", PROCESSOR_AMDFAM10, | |
623 | CPU_AMDFAM10_FLAGS }, | |
624 | { ".mmx", PROCESSOR_UNKNOWN, | |
625 | CPU_MMX_FLAGS }, | |
626 | { ".sse", PROCESSOR_UNKNOWN, | |
627 | CPU_SSE_FLAGS }, | |
628 | { ".sse2", PROCESSOR_UNKNOWN, | |
629 | CPU_SSE2_FLAGS }, | |
630 | { ".sse3", PROCESSOR_UNKNOWN, | |
631 | CPU_SSE3_FLAGS }, | |
632 | { ".ssse3", PROCESSOR_UNKNOWN, | |
633 | CPU_SSSE3_FLAGS }, | |
634 | { ".sse4.1", PROCESSOR_UNKNOWN, | |
635 | CPU_SSE4_1_FLAGS }, | |
636 | { ".sse4.2", PROCESSOR_UNKNOWN, | |
637 | CPU_SSE4_2_FLAGS }, | |
638 | { ".sse4", PROCESSOR_UNKNOWN, | |
639 | CPU_SSE4_2_FLAGS }, | |
c0f3af97 L |
640 | { ".avx", PROCESSOR_UNKNOWN, |
641 | CPU_AVX_FLAGS }, | |
6305a203 L |
642 | { ".vmx", PROCESSOR_UNKNOWN, |
643 | CPU_VMX_FLAGS }, | |
644 | { ".smx", PROCESSOR_UNKNOWN, | |
645 | CPU_SMX_FLAGS }, | |
f03fe4c1 L |
646 | { ".xsave", PROCESSOR_UNKNOWN, |
647 | CPU_XSAVE_FLAGS }, | |
c0f3af97 L |
648 | { ".aes", PROCESSOR_UNKNOWN, |
649 | CPU_AES_FLAGS }, | |
594ab6a3 L |
650 | { ".pclmul", PROCESSOR_UNKNOWN, |
651 | CPU_PCLMUL_FLAGS }, | |
c0f3af97 | 652 | { ".clmul", PROCESSOR_UNKNOWN, |
594ab6a3 | 653 | CPU_PCLMUL_FLAGS }, |
c0f3af97 L |
654 | { ".fma", PROCESSOR_UNKNOWN, |
655 | CPU_FMA_FLAGS }, | |
6305a203 L |
656 | { ".3dnow", PROCESSOR_UNKNOWN, |
657 | CPU_3DNOW_FLAGS }, | |
658 | { ".3dnowa", PROCESSOR_UNKNOWN, | |
659 | CPU_3DNOWA_FLAGS }, | |
660 | { ".padlock", PROCESSOR_UNKNOWN, | |
661 | CPU_PADLOCK_FLAGS }, | |
662 | { ".pacifica", PROCESSOR_UNKNOWN, | |
663 | CPU_SVME_FLAGS }, | |
664 | { ".svme", PROCESSOR_UNKNOWN, | |
665 | CPU_SVME_FLAGS }, | |
666 | { ".sse4a", PROCESSOR_UNKNOWN, | |
667 | CPU_SSE4A_FLAGS }, | |
668 | { ".abm", PROCESSOR_UNKNOWN, | |
669 | CPU_ABM_FLAGS }, | |
670 | { ".sse5", PROCESSOR_UNKNOWN, | |
671 | CPU_SSE5_FLAGS }, | |
e413e4e9 AM |
672 | }; |
673 | ||
29b0f896 AM |
674 | const pseudo_typeS md_pseudo_table[] = |
675 | { | |
676 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
677 | {"align", s_align_bytes, 0}, | |
678 | #else | |
679 | {"align", s_align_ptwo, 0}, | |
680 | #endif | |
681 | {"arch", set_cpu_arch, 0}, | |
682 | #ifndef I386COFF | |
683 | {"bss", s_bss, 0}, | |
684 | #endif | |
685 | {"ffloat", float_cons, 'f'}, | |
686 | {"dfloat", float_cons, 'd'}, | |
687 | {"tfloat", float_cons, 'x'}, | |
688 | {"value", cons, 2}, | |
d182319b | 689 | {"slong", signed_cons, 4}, |
29b0f896 AM |
690 | {"noopt", s_ignore, 0}, |
691 | {"optim", s_ignore, 0}, | |
692 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
693 | {"code16", set_code_flag, CODE_16BIT}, | |
694 | {"code32", set_code_flag, CODE_32BIT}, | |
695 | {"code64", set_code_flag, CODE_64BIT}, | |
696 | {"intel_syntax", set_intel_syntax, 1}, | |
697 | {"att_syntax", set_intel_syntax, 0}, | |
1efbbeb4 L |
698 | {"intel_mnemonic", set_intel_mnemonic, 1}, |
699 | {"att_mnemonic", set_intel_mnemonic, 0}, | |
db51cc60 L |
700 | {"allow_index_reg", set_allow_index_reg, 1}, |
701 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
3b22753a L |
702 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
703 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 704 | #else |
e3bb37b5 | 705 | {"file", (void (*) (int)) dwarf2_directive_file, 0}, |
07a53e5c RH |
706 | {"loc", dwarf2_directive_loc, 0}, |
707 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 708 | #endif |
6482c264 NC |
709 | #ifdef TE_PE |
710 | {"secrel32", pe_directive_secrel, 0}, | |
711 | #endif | |
29b0f896 AM |
712 | {0, 0, 0} |
713 | }; | |
714 | ||
715 | /* For interface with expression (). */ | |
716 | extern char *input_line_pointer; | |
717 | ||
718 | /* Hash table for instruction mnemonic lookup. */ | |
719 | static struct hash_control *op_hash; | |
720 | ||
721 | /* Hash table for register lookup. */ | |
722 | static struct hash_control *reg_hash; | |
723 | \f | |
252b5132 | 724 | void |
e3bb37b5 | 725 | i386_align_code (fragS *fragP, int count) |
252b5132 | 726 | { |
ce8a8b2f AM |
727 | /* Various efficient no-op patterns for aligning code labels. |
728 | Note: Don't try to assemble the instructions in the comments. | |
729 | 0L and 0w are not legal. */ | |
252b5132 RH |
730 | static const char f32_1[] = |
731 | {0x90}; /* nop */ | |
732 | static const char f32_2[] = | |
ccc9c027 | 733 | {0x66,0x90}; /* xchg %ax,%ax */ |
252b5132 RH |
734 | static const char f32_3[] = |
735 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
736 | static const char f32_4[] = | |
737 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
738 | static const char f32_5[] = | |
739 | {0x90, /* nop */ | |
740 | 0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
741 | static const char f32_6[] = | |
742 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
743 | static const char f32_7[] = | |
744 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
745 | static const char f32_8[] = | |
746 | {0x90, /* nop */ | |
747 | 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
748 | static const char f32_9[] = | |
749 | {0x89,0xf6, /* movl %esi,%esi */ | |
750 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
751 | static const char f32_10[] = | |
752 | {0x8d,0x76,0x00, /* leal 0(%esi),%esi */ | |
753 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
754 | static const char f32_11[] = | |
755 | {0x8d,0x74,0x26,0x00, /* leal 0(%esi,1),%esi */ | |
756 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
757 | static const char f32_12[] = | |
758 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
759 | 0x8d,0xbf,0x00,0x00,0x00,0x00}; /* leal 0L(%edi),%edi */ | |
760 | static const char f32_13[] = | |
761 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
762 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
763 | static const char f32_14[] = | |
764 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00, /* leal 0L(%esi,1),%esi */ | |
765 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
c3332e24 AM |
766 | static const char f16_3[] = |
767 | {0x8d,0x74,0x00}; /* lea 0(%esi),%esi */ | |
252b5132 RH |
768 | static const char f16_4[] = |
769 | {0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
770 | static const char f16_5[] = | |
771 | {0x90, /* nop */ | |
772 | 0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
773 | static const char f16_6[] = | |
774 | {0x89,0xf6, /* mov %si,%si */ | |
775 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
776 | static const char f16_7[] = | |
777 | {0x8d,0x74,0x00, /* lea 0(%si),%si */ | |
778 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
779 | static const char f16_8[] = | |
780 | {0x8d,0xb4,0x00,0x00, /* lea 0w(%si),%si */ | |
781 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
76bc74dc L |
782 | static const char jump_31[] = |
783 | {0xeb,0x1d,0x90,0x90,0x90,0x90,0x90, /* jmp .+31; lotsa nops */ | |
784 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
785 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
786 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90}; | |
252b5132 RH |
787 | static const char *const f32_patt[] = { |
788 | f32_1, f32_2, f32_3, f32_4, f32_5, f32_6, f32_7, f32_8, | |
76bc74dc | 789 | f32_9, f32_10, f32_11, f32_12, f32_13, f32_14 |
252b5132 RH |
790 | }; |
791 | static const char *const f16_patt[] = { | |
76bc74dc | 792 | f32_1, f32_2, f16_3, f16_4, f16_5, f16_6, f16_7, f16_8 |
252b5132 | 793 | }; |
ccc9c027 L |
794 | /* nopl (%[re]ax) */ |
795 | static const char alt_3[] = | |
796 | {0x0f,0x1f,0x00}; | |
797 | /* nopl 0(%[re]ax) */ | |
798 | static const char alt_4[] = | |
799 | {0x0f,0x1f,0x40,0x00}; | |
800 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
801 | static const char alt_5[] = | |
802 | {0x0f,0x1f,0x44,0x00,0x00}; | |
803 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
804 | static const char alt_6[] = | |
805 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
806 | /* nopl 0L(%[re]ax) */ | |
807 | static const char alt_7[] = | |
808 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
809 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
810 | static const char alt_8[] = | |
811 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
812 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
813 | static const char alt_9[] = | |
814 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
815 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
816 | static const char alt_10[] = | |
817 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
818 | /* data16 | |
819 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
820 | static const char alt_long_11[] = | |
821 | {0x66, | |
822 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
823 | /* data16 | |
824 | data16 | |
825 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
826 | static const char alt_long_12[] = | |
827 | {0x66, | |
828 | 0x66, | |
829 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
830 | /* data16 | |
831 | data16 | |
832 | data16 | |
833 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
834 | static const char alt_long_13[] = | |
835 | {0x66, | |
836 | 0x66, | |
837 | 0x66, | |
838 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
839 | /* data16 | |
840 | data16 | |
841 | data16 | |
842 | data16 | |
843 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
844 | static const char alt_long_14[] = | |
845 | {0x66, | |
846 | 0x66, | |
847 | 0x66, | |
848 | 0x66, | |
849 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
850 | /* data16 | |
851 | data16 | |
852 | data16 | |
853 | data16 | |
854 | data16 | |
855 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
856 | static const char alt_long_15[] = | |
857 | {0x66, | |
858 | 0x66, | |
859 | 0x66, | |
860 | 0x66, | |
861 | 0x66, | |
862 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
863 | /* nopl 0(%[re]ax,%[re]ax,1) | |
864 | nopw 0(%[re]ax,%[re]ax,1) */ | |
865 | static const char alt_short_11[] = | |
866 | {0x0f,0x1f,0x44,0x00,0x00, | |
867 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
868 | /* nopw 0(%[re]ax,%[re]ax,1) | |
869 | nopw 0(%[re]ax,%[re]ax,1) */ | |
870 | static const char alt_short_12[] = | |
871 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
872 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
873 | /* nopw 0(%[re]ax,%[re]ax,1) | |
874 | nopl 0L(%[re]ax) */ | |
875 | static const char alt_short_13[] = | |
876 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
877 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
878 | /* nopl 0L(%[re]ax) | |
879 | nopl 0L(%[re]ax) */ | |
880 | static const char alt_short_14[] = | |
881 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
882 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
883 | /* nopl 0L(%[re]ax) | |
884 | nopl 0L(%[re]ax,%[re]ax,1) */ | |
885 | static const char alt_short_15[] = | |
886 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
887 | 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
888 | static const char *const alt_short_patt[] = { | |
889 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
890 | alt_9, alt_10, alt_short_11, alt_short_12, alt_short_13, | |
891 | alt_short_14, alt_short_15 | |
892 | }; | |
893 | static const char *const alt_long_patt[] = { | |
894 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
895 | alt_9, alt_10, alt_long_11, alt_long_12, alt_long_13, | |
896 | alt_long_14, alt_long_15 | |
897 | }; | |
252b5132 | 898 | |
76bc74dc L |
899 | /* Only align for at least a positive non-zero boundary. */ |
900 | if (count <= 0 || count > MAX_MEM_FOR_RS_ALIGN_CODE) | |
33fef721 | 901 | return; |
3e73aa7c | 902 | |
ccc9c027 L |
903 | /* We need to decide which NOP sequence to use for 32bit and |
904 | 64bit. When -mtune= is used: | |
4eed87de | 905 | |
76bc74dc L |
906 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
907 | PROCESSOR_GENERIC32, f32_patt will be used. | |
908 | 2. For PROCESSOR_PENTIUMPRO, PROCESSOR_PENTIUM4, PROCESSOR_NOCONA, | |
909 | PROCESSOR_CORE, PROCESSOR_CORE2, and PROCESSOR_GENERIC64, | |
910 | alt_long_patt will be used. | |
911 | 3. For PROCESSOR_ATHLON, PROCESSOR_K6, PROCESSOR_K8 and | |
912 | PROCESSOR_AMDFAM10, alt_short_patt will be used. | |
ccc9c027 | 913 | |
76bc74dc L |
914 | When -mtune= isn't used, alt_long_patt will be used if |
915 | cpu_arch_isa_flags has Cpu686. Otherwise, f32_patt will | |
916 | be used. | |
ccc9c027 L |
917 | |
918 | When -march= or .arch is used, we can't use anything beyond | |
919 | cpu_arch_isa_flags. */ | |
920 | ||
921 | if (flag_code == CODE_16BIT) | |
922 | { | |
ccc9c027 | 923 | if (count > 8) |
33fef721 | 924 | { |
76bc74dc L |
925 | memcpy (fragP->fr_literal + fragP->fr_fix, |
926 | jump_31, count); | |
927 | /* Adjust jump offset. */ | |
928 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
252b5132 | 929 | } |
76bc74dc L |
930 | else |
931 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
932 | f16_patt[count - 1], count); | |
252b5132 | 933 | } |
33fef721 | 934 | else |
ccc9c027 L |
935 | { |
936 | const char *const *patt = NULL; | |
937 | ||
938 | if (cpu_arch_isa == PROCESSOR_UNKNOWN) | |
939 | { | |
940 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
941 | switch (cpu_arch_tune) | |
942 | { | |
943 | case PROCESSOR_UNKNOWN: | |
944 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
945 | optimize for Cpu686. */ | |
40fb9820 | 946 | if (cpu_arch_isa_flags.bitfield.cpui686) |
76bc74dc | 947 | patt = alt_long_patt; |
ccc9c027 L |
948 | else |
949 | patt = f32_patt; | |
950 | break; | |
ccc9c027 L |
951 | case PROCESSOR_PENTIUMPRO: |
952 | case PROCESSOR_PENTIUM4: | |
953 | case PROCESSOR_NOCONA: | |
ef05d495 | 954 | case PROCESSOR_CORE: |
76bc74dc L |
955 | case PROCESSOR_CORE2: |
956 | case PROCESSOR_GENERIC64: | |
957 | patt = alt_long_patt; | |
958 | break; | |
ccc9c027 L |
959 | case PROCESSOR_K6: |
960 | case PROCESSOR_ATHLON: | |
961 | case PROCESSOR_K8: | |
4eed87de | 962 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
963 | patt = alt_short_patt; |
964 | break; | |
76bc74dc | 965 | case PROCESSOR_I386: |
ccc9c027 L |
966 | case PROCESSOR_I486: |
967 | case PROCESSOR_PENTIUM: | |
968 | case PROCESSOR_GENERIC32: | |
969 | patt = f32_patt; | |
970 | break; | |
4eed87de | 971 | } |
ccc9c027 L |
972 | } |
973 | else | |
974 | { | |
975 | switch (cpu_arch_tune) | |
976 | { | |
977 | case PROCESSOR_UNKNOWN: | |
978 | /* When cpu_arch_isa is net, cpu_arch_tune shouldn't be | |
979 | PROCESSOR_UNKNOWN. */ | |
980 | abort (); | |
981 | break; | |
982 | ||
76bc74dc | 983 | case PROCESSOR_I386: |
ccc9c027 L |
984 | case PROCESSOR_I486: |
985 | case PROCESSOR_PENTIUM: | |
ccc9c027 L |
986 | case PROCESSOR_K6: |
987 | case PROCESSOR_ATHLON: | |
988 | case PROCESSOR_K8: | |
4eed87de | 989 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
990 | case PROCESSOR_GENERIC32: |
991 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
992 | for Cpu686. */ | |
40fb9820 | 993 | if (cpu_arch_isa_flags.bitfield.cpui686) |
ccc9c027 L |
994 | patt = alt_short_patt; |
995 | else | |
996 | patt = f32_patt; | |
997 | break; | |
76bc74dc L |
998 | case PROCESSOR_PENTIUMPRO: |
999 | case PROCESSOR_PENTIUM4: | |
1000 | case PROCESSOR_NOCONA: | |
1001 | case PROCESSOR_CORE: | |
ef05d495 | 1002 | case PROCESSOR_CORE2: |
40fb9820 | 1003 | if (cpu_arch_isa_flags.bitfield.cpui686) |
ccc9c027 L |
1004 | patt = alt_long_patt; |
1005 | else | |
1006 | patt = f32_patt; | |
1007 | break; | |
1008 | case PROCESSOR_GENERIC64: | |
76bc74dc | 1009 | patt = alt_long_patt; |
ccc9c027 | 1010 | break; |
4eed87de | 1011 | } |
ccc9c027 L |
1012 | } |
1013 | ||
76bc74dc L |
1014 | if (patt == f32_patt) |
1015 | { | |
1016 | /* If the padding is less than 15 bytes, we use the normal | |
1017 | ones. Otherwise, we use a jump instruction and adjust | |
1018 | its offset. */ | |
1019 | if (count < 15) | |
1020 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1021 | patt[count - 1], count); | |
1022 | else | |
1023 | { | |
1024 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1025 | jump_31, count); | |
1026 | /* Adjust jump offset. */ | |
1027 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
1028 | } | |
1029 | } | |
1030 | else | |
1031 | { | |
1032 | /* Maximum length of an instruction is 15 byte. If the | |
1033 | padding is greater than 15 bytes and we don't use jump, | |
1034 | we have to break it into smaller pieces. */ | |
1035 | int padding = count; | |
1036 | while (padding > 15) | |
1037 | { | |
1038 | padding -= 15; | |
1039 | memcpy (fragP->fr_literal + fragP->fr_fix + padding, | |
1040 | patt [14], 15); | |
1041 | } | |
1042 | ||
1043 | if (padding) | |
1044 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
1045 | patt [padding - 1], padding); | |
1046 | } | |
ccc9c027 | 1047 | } |
33fef721 | 1048 | fragP->fr_var = count; |
252b5132 RH |
1049 | } |
1050 | ||
c6fb90c8 | 1051 | static INLINE int |
0dfbf9d7 | 1052 | operand_type_all_zero (const union i386_operand_type *x) |
40fb9820 | 1053 | { |
0dfbf9d7 | 1054 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1055 | { |
1056 | case 3: | |
0dfbf9d7 | 1057 | if (x->array[2]) |
c6fb90c8 L |
1058 | return 0; |
1059 | case 2: | |
0dfbf9d7 | 1060 | if (x->array[1]) |
c6fb90c8 L |
1061 | return 0; |
1062 | case 1: | |
0dfbf9d7 | 1063 | return !x->array[0]; |
c6fb90c8 L |
1064 | default: |
1065 | abort (); | |
1066 | } | |
40fb9820 L |
1067 | } |
1068 | ||
c6fb90c8 | 1069 | static INLINE void |
0dfbf9d7 | 1070 | operand_type_set (union i386_operand_type *x, unsigned int v) |
40fb9820 | 1071 | { |
0dfbf9d7 | 1072 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1073 | { |
1074 | case 3: | |
0dfbf9d7 | 1075 | x->array[2] = v; |
c6fb90c8 | 1076 | case 2: |
0dfbf9d7 | 1077 | x->array[1] = v; |
c6fb90c8 | 1078 | case 1: |
0dfbf9d7 | 1079 | x->array[0] = v; |
c6fb90c8 L |
1080 | break; |
1081 | default: | |
1082 | abort (); | |
1083 | } | |
1084 | } | |
40fb9820 | 1085 | |
c6fb90c8 | 1086 | static INLINE int |
0dfbf9d7 L |
1087 | operand_type_equal (const union i386_operand_type *x, |
1088 | const union i386_operand_type *y) | |
c6fb90c8 | 1089 | { |
0dfbf9d7 | 1090 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1091 | { |
1092 | case 3: | |
0dfbf9d7 | 1093 | if (x->array[2] != y->array[2]) |
c6fb90c8 L |
1094 | return 0; |
1095 | case 2: | |
0dfbf9d7 | 1096 | if (x->array[1] != y->array[1]) |
c6fb90c8 L |
1097 | return 0; |
1098 | case 1: | |
0dfbf9d7 | 1099 | return x->array[0] == y->array[0]; |
c6fb90c8 L |
1100 | break; |
1101 | default: | |
1102 | abort (); | |
1103 | } | |
1104 | } | |
40fb9820 | 1105 | |
0dfbf9d7 L |
1106 | static INLINE int |
1107 | cpu_flags_all_zero (const union i386_cpu_flags *x) | |
1108 | { | |
1109 | switch (ARRAY_SIZE(x->array)) | |
1110 | { | |
1111 | case 3: | |
1112 | if (x->array[2]) | |
1113 | return 0; | |
1114 | case 2: | |
1115 | if (x->array[1]) | |
1116 | return 0; | |
1117 | case 1: | |
1118 | return !x->array[0]; | |
1119 | default: | |
1120 | abort (); | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | static INLINE void | |
1125 | cpu_flags_set (union i386_cpu_flags *x, unsigned int v) | |
1126 | { | |
1127 | switch (ARRAY_SIZE(x->array)) | |
1128 | { | |
1129 | case 3: | |
1130 | x->array[2] = v; | |
1131 | case 2: | |
1132 | x->array[1] = v; | |
1133 | case 1: | |
1134 | x->array[0] = v; | |
1135 | break; | |
1136 | default: | |
1137 | abort (); | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | static INLINE int | |
1142 | cpu_flags_equal (const union i386_cpu_flags *x, | |
1143 | const union i386_cpu_flags *y) | |
1144 | { | |
1145 | switch (ARRAY_SIZE(x->array)) | |
1146 | { | |
1147 | case 3: | |
1148 | if (x->array[2] != y->array[2]) | |
1149 | return 0; | |
1150 | case 2: | |
1151 | if (x->array[1] != y->array[1]) | |
1152 | return 0; | |
1153 | case 1: | |
1154 | return x->array[0] == y->array[0]; | |
1155 | break; | |
1156 | default: | |
1157 | abort (); | |
1158 | } | |
1159 | } | |
c6fb90c8 L |
1160 | |
1161 | static INLINE int | |
1162 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
1163 | { | |
1164 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
1165 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
1166 | } |
1167 | ||
c6fb90c8 L |
1168 | static INLINE i386_cpu_flags |
1169 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1170 | { |
c6fb90c8 L |
1171 | switch (ARRAY_SIZE (x.array)) |
1172 | { | |
1173 | case 3: | |
1174 | x.array [2] &= y.array [2]; | |
1175 | case 2: | |
1176 | x.array [1] &= y.array [1]; | |
1177 | case 1: | |
1178 | x.array [0] &= y.array [0]; | |
1179 | break; | |
1180 | default: | |
1181 | abort (); | |
1182 | } | |
1183 | return x; | |
1184 | } | |
40fb9820 | 1185 | |
c6fb90c8 L |
1186 | static INLINE i386_cpu_flags |
1187 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1188 | { |
c6fb90c8 | 1189 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1190 | { |
c6fb90c8 L |
1191 | case 3: |
1192 | x.array [2] |= y.array [2]; | |
1193 | case 2: | |
1194 | x.array [1] |= y.array [1]; | |
1195 | case 1: | |
1196 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1197 | break; |
1198 | default: | |
1199 | abort (); | |
1200 | } | |
40fb9820 L |
1201 | return x; |
1202 | } | |
1203 | ||
c0f3af97 L |
1204 | #define CPU_FLAGS_ARCH_MATCH 0x1 |
1205 | #define CPU_FLAGS_64BIT_MATCH 0x2 | |
1206 | ||
1207 | #define CPU_FLAGS_32BIT_MATCH CPU_FLAGS_ARCH_MATCH | |
1208 | #define CPU_FLAGS_PERFECT_MATCH \ | |
1209 | (CPU_FLAGS_32BIT_MATCH | CPU_FLAGS_64BIT_MATCH) | |
1210 | ||
1211 | /* Return CPU flags match bits. */ | |
3629bb00 | 1212 | |
40fb9820 | 1213 | static int |
c0f3af97 | 1214 | cpu_flags_match (const template *t) |
40fb9820 | 1215 | { |
c0f3af97 L |
1216 | i386_cpu_flags x = t->cpu_flags; |
1217 | int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0; | |
40fb9820 L |
1218 | |
1219 | x.bitfield.cpu64 = 0; | |
1220 | x.bitfield.cpuno64 = 0; | |
1221 | ||
0dfbf9d7 | 1222 | if (cpu_flags_all_zero (&x)) |
c0f3af97 L |
1223 | { |
1224 | /* This instruction is available on all archs. */ | |
1225 | match |= CPU_FLAGS_32BIT_MATCH; | |
1226 | } | |
3629bb00 L |
1227 | else |
1228 | { | |
c0f3af97 | 1229 | /* This instruction is available only on some archs. */ |
3629bb00 L |
1230 | i386_cpu_flags cpu = cpu_arch_flags; |
1231 | ||
1232 | cpu.bitfield.cpu64 = 0; | |
1233 | cpu.bitfield.cpuno64 = 0; | |
1234 | cpu = cpu_flags_and (x, cpu); | |
c0f3af97 L |
1235 | if (!cpu_flags_all_zero (&cpu)) |
1236 | { | |
1237 | /* Check SSE2AVX */ | |
1238 | if (!t->opcode_modifier.sse2avx || sse2avx) | |
1239 | match |= CPU_FLAGS_32BIT_MATCH; | |
1240 | } | |
3629bb00 | 1241 | } |
c0f3af97 | 1242 | return match; |
40fb9820 L |
1243 | } |
1244 | ||
c6fb90c8 L |
1245 | static INLINE i386_operand_type |
1246 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1247 | { |
c6fb90c8 L |
1248 | switch (ARRAY_SIZE (x.array)) |
1249 | { | |
1250 | case 3: | |
1251 | x.array [2] &= y.array [2]; | |
1252 | case 2: | |
1253 | x.array [1] &= y.array [1]; | |
1254 | case 1: | |
1255 | x.array [0] &= y.array [0]; | |
1256 | break; | |
1257 | default: | |
1258 | abort (); | |
1259 | } | |
1260 | return x; | |
40fb9820 L |
1261 | } |
1262 | ||
c6fb90c8 L |
1263 | static INLINE i386_operand_type |
1264 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1265 | { |
c6fb90c8 | 1266 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1267 | { |
c6fb90c8 L |
1268 | case 3: |
1269 | x.array [2] |= y.array [2]; | |
1270 | case 2: | |
1271 | x.array [1] |= y.array [1]; | |
1272 | case 1: | |
1273 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1274 | break; |
1275 | default: | |
1276 | abort (); | |
1277 | } | |
c6fb90c8 L |
1278 | return x; |
1279 | } | |
40fb9820 | 1280 | |
c6fb90c8 L |
1281 | static INLINE i386_operand_type |
1282 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
1283 | { | |
1284 | switch (ARRAY_SIZE (x.array)) | |
1285 | { | |
1286 | case 3: | |
1287 | x.array [2] ^= y.array [2]; | |
1288 | case 2: | |
1289 | x.array [1] ^= y.array [1]; | |
1290 | case 1: | |
1291 | x.array [0] ^= y.array [0]; | |
1292 | break; | |
1293 | default: | |
1294 | abort (); | |
1295 | } | |
40fb9820 L |
1296 | return x; |
1297 | } | |
1298 | ||
1299 | static const i386_operand_type acc32 = OPERAND_TYPE_ACC32; | |
1300 | static const i386_operand_type acc64 = OPERAND_TYPE_ACC64; | |
1301 | static const i386_operand_type control = OPERAND_TYPE_CONTROL; | |
65da13b5 L |
1302 | static const i386_operand_type inoutportreg |
1303 | = OPERAND_TYPE_INOUTPORTREG; | |
40fb9820 L |
1304 | static const i386_operand_type reg16_inoutportreg |
1305 | = OPERAND_TYPE_REG16_INOUTPORTREG; | |
1306 | static const i386_operand_type disp16 = OPERAND_TYPE_DISP16; | |
1307 | static const i386_operand_type disp32 = OPERAND_TYPE_DISP32; | |
1308 | static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S; | |
1309 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; | |
1310 | static const i386_operand_type anydisp | |
1311 | = OPERAND_TYPE_ANYDISP; | |
40fb9820 | 1312 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
c0f3af97 | 1313 | static const i386_operand_type regymm = OPERAND_TYPE_REGYMM; |
40fb9820 L |
1314 | static const i386_operand_type imm8 = OPERAND_TYPE_IMM8; |
1315 | static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S; | |
1316 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; | |
1317 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
1318 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
1319 | static const i386_operand_type imm64 = OPERAND_TYPE_IMM64; | |
1320 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; | |
1321 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
1322 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
c0f3af97 | 1323 | static const i386_operand_type vex_imm4 = OPERAND_TYPE_VEX_IMM4; |
40fb9820 L |
1324 | |
1325 | enum operand_type | |
1326 | { | |
1327 | reg, | |
40fb9820 L |
1328 | imm, |
1329 | disp, | |
1330 | anymem | |
1331 | }; | |
1332 | ||
c6fb90c8 | 1333 | static INLINE int |
40fb9820 L |
1334 | operand_type_check (i386_operand_type t, enum operand_type c) |
1335 | { | |
1336 | switch (c) | |
1337 | { | |
1338 | case reg: | |
1339 | return (t.bitfield.reg8 | |
1340 | || t.bitfield.reg16 | |
1341 | || t.bitfield.reg32 | |
1342 | || t.bitfield.reg64); | |
1343 | ||
40fb9820 L |
1344 | case imm: |
1345 | return (t.bitfield.imm8 | |
1346 | || t.bitfield.imm8s | |
1347 | || t.bitfield.imm16 | |
1348 | || t.bitfield.imm32 | |
1349 | || t.bitfield.imm32s | |
1350 | || t.bitfield.imm64); | |
1351 | ||
1352 | case disp: | |
1353 | return (t.bitfield.disp8 | |
1354 | || t.bitfield.disp16 | |
1355 | || t.bitfield.disp32 | |
1356 | || t.bitfield.disp32s | |
1357 | || t.bitfield.disp64); | |
1358 | ||
1359 | case anymem: | |
1360 | return (t.bitfield.disp8 | |
1361 | || t.bitfield.disp16 | |
1362 | || t.bitfield.disp32 | |
1363 | || t.bitfield.disp32s | |
1364 | || t.bitfield.disp64 | |
1365 | || t.bitfield.baseindex); | |
1366 | ||
1367 | default: | |
1368 | abort (); | |
1369 | } | |
1370 | } | |
1371 | ||
5c07affc L |
1372 | /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit on |
1373 | operand J for instruction template T. */ | |
1374 | ||
1375 | static INLINE int | |
1376 | match_reg_size (const template *t, unsigned int j) | |
1377 | { | |
1378 | return !((i.types[j].bitfield.byte | |
1379 | && !t->operand_types[j].bitfield.byte) | |
1380 | || (i.types[j].bitfield.word | |
1381 | && !t->operand_types[j].bitfield.word) | |
1382 | || (i.types[j].bitfield.dword | |
1383 | && !t->operand_types[j].bitfield.dword) | |
1384 | || (i.types[j].bitfield.qword | |
1385 | && !t->operand_types[j].bitfield.qword)); | |
1386 | } | |
1387 | ||
1388 | /* Return 1 if there is no conflict in any size on operand J for | |
1389 | instruction template T. */ | |
1390 | ||
1391 | static INLINE int | |
1392 | match_mem_size (const template *t, unsigned int j) | |
1393 | { | |
1394 | return (match_reg_size (t, j) | |
1395 | && !((i.types[j].bitfield.unspecified | |
1396 | && !t->operand_types[j].bitfield.unspecified) | |
1397 | || (i.types[j].bitfield.fword | |
1398 | && !t->operand_types[j].bitfield.fword) | |
1399 | || (i.types[j].bitfield.tbyte | |
1400 | && !t->operand_types[j].bitfield.tbyte) | |
1401 | || (i.types[j].bitfield.xmmword | |
c0f3af97 L |
1402 | && !t->operand_types[j].bitfield.xmmword) |
1403 | || (i.types[j].bitfield.ymmword | |
1404 | && !t->operand_types[j].bitfield.ymmword))); | |
5c07affc L |
1405 | } |
1406 | ||
1407 | /* Return 1 if there is no size conflict on any operands for | |
1408 | instruction template T. */ | |
1409 | ||
1410 | static INLINE int | |
1411 | operand_size_match (const template *t) | |
1412 | { | |
1413 | unsigned int j; | |
1414 | int match = 1; | |
1415 | ||
1416 | /* Don't check jump instructions. */ | |
1417 | if (t->opcode_modifier.jump | |
1418 | || t->opcode_modifier.jumpbyte | |
1419 | || t->opcode_modifier.jumpdword | |
1420 | || t->opcode_modifier.jumpintersegment) | |
1421 | return match; | |
1422 | ||
1423 | /* Check memory and accumulator operand size. */ | |
1424 | for (j = 0; j < i.operands; j++) | |
1425 | { | |
1426 | if (t->operand_types[j].bitfield.anysize) | |
1427 | continue; | |
1428 | ||
1429 | if (t->operand_types[j].bitfield.acc && !match_reg_size (t, j)) | |
1430 | { | |
1431 | match = 0; | |
1432 | break; | |
1433 | } | |
1434 | ||
1435 | if (i.types[j].bitfield.mem && !match_mem_size (t, j)) | |
1436 | { | |
1437 | match = 0; | |
1438 | break; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | if (match | |
1443 | || (!t->opcode_modifier.d && !t->opcode_modifier.floatd)) | |
1444 | return match; | |
1445 | ||
1446 | /* Check reverse. */ | |
1447 | assert (i.operands == 2); | |
1448 | ||
1449 | match = 1; | |
1450 | for (j = 0; j < 2; j++) | |
1451 | { | |
1452 | if (t->operand_types[j].bitfield.acc | |
1453 | && !match_reg_size (t, j ? 0 : 1)) | |
1454 | { | |
1455 | match = 0; | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | if (i.types[j].bitfield.mem | |
1460 | && !match_mem_size (t, j ? 0 : 1)) | |
1461 | { | |
1462 | match = 0; | |
1463 | break; | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | return match; | |
1468 | } | |
1469 | ||
c6fb90c8 | 1470 | static INLINE int |
40fb9820 L |
1471 | operand_type_match (i386_operand_type overlap, |
1472 | i386_operand_type given) | |
1473 | { | |
1474 | i386_operand_type temp = overlap; | |
1475 | ||
1476 | temp.bitfield.jumpabsolute = 0; | |
7d5e4556 | 1477 | temp.bitfield.unspecified = 0; |
5c07affc L |
1478 | temp.bitfield.byte = 0; |
1479 | temp.bitfield.word = 0; | |
1480 | temp.bitfield.dword = 0; | |
1481 | temp.bitfield.fword = 0; | |
1482 | temp.bitfield.qword = 0; | |
1483 | temp.bitfield.tbyte = 0; | |
1484 | temp.bitfield.xmmword = 0; | |
c0f3af97 | 1485 | temp.bitfield.ymmword = 0; |
0dfbf9d7 | 1486 | if (operand_type_all_zero (&temp)) |
40fb9820 L |
1487 | return 0; |
1488 | ||
1489 | return (given.bitfield.baseindex == overlap.bitfield.baseindex | |
1490 | && given.bitfield.jumpabsolute == overlap.bitfield.jumpabsolute); | |
1491 | } | |
1492 | ||
7d5e4556 | 1493 | /* If given types g0 and g1 are registers they must be of the same type |
40fb9820 L |
1494 | unless the expected operand type register overlap is null. |
1495 | Note that Acc in a template matches every size of reg. */ | |
1496 | ||
c6fb90c8 | 1497 | static INLINE int |
40fb9820 L |
1498 | operand_type_register_match (i386_operand_type m0, |
1499 | i386_operand_type g0, | |
1500 | i386_operand_type t0, | |
1501 | i386_operand_type m1, | |
1502 | i386_operand_type g1, | |
1503 | i386_operand_type t1) | |
1504 | { | |
1505 | if (!operand_type_check (g0, reg)) | |
1506 | return 1; | |
1507 | ||
1508 | if (!operand_type_check (g1, reg)) | |
1509 | return 1; | |
1510 | ||
1511 | if (g0.bitfield.reg8 == g1.bitfield.reg8 | |
1512 | && g0.bitfield.reg16 == g1.bitfield.reg16 | |
1513 | && g0.bitfield.reg32 == g1.bitfield.reg32 | |
1514 | && g0.bitfield.reg64 == g1.bitfield.reg64) | |
1515 | return 1; | |
1516 | ||
1517 | if (m0.bitfield.acc) | |
1518 | { | |
1519 | t0.bitfield.reg8 = 1; | |
1520 | t0.bitfield.reg16 = 1; | |
1521 | t0.bitfield.reg32 = 1; | |
1522 | t0.bitfield.reg64 = 1; | |
1523 | } | |
1524 | ||
1525 | if (m1.bitfield.acc) | |
1526 | { | |
1527 | t1.bitfield.reg8 = 1; | |
1528 | t1.bitfield.reg16 = 1; | |
1529 | t1.bitfield.reg32 = 1; | |
1530 | t1.bitfield.reg64 = 1; | |
1531 | } | |
1532 | ||
1533 | return (!(t0.bitfield.reg8 & t1.bitfield.reg8) | |
1534 | && !(t0.bitfield.reg16 & t1.bitfield.reg16) | |
1535 | && !(t0.bitfield.reg32 & t1.bitfield.reg32) | |
1536 | && !(t0.bitfield.reg64 & t1.bitfield.reg64)); | |
1537 | } | |
1538 | ||
252b5132 | 1539 | static INLINE unsigned int |
40fb9820 | 1540 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 1541 | { |
40fb9820 L |
1542 | if (t.bitfield.disp8) |
1543 | return 1; | |
1544 | else if (t.bitfield.disp16 | |
1545 | || t.bitfield.disp32 | |
1546 | || t.bitfield.disp32s) | |
1547 | return 2; | |
1548 | else | |
1549 | return 0; | |
252b5132 RH |
1550 | } |
1551 | ||
1552 | static INLINE int | |
e3bb37b5 | 1553 | fits_in_signed_byte (offsetT num) |
252b5132 RH |
1554 | { |
1555 | return (num >= -128) && (num <= 127); | |
47926f60 | 1556 | } |
252b5132 RH |
1557 | |
1558 | static INLINE int | |
e3bb37b5 | 1559 | fits_in_unsigned_byte (offsetT num) |
252b5132 RH |
1560 | { |
1561 | return (num & 0xff) == num; | |
47926f60 | 1562 | } |
252b5132 RH |
1563 | |
1564 | static INLINE int | |
e3bb37b5 | 1565 | fits_in_unsigned_word (offsetT num) |
252b5132 RH |
1566 | { |
1567 | return (num & 0xffff) == num; | |
47926f60 | 1568 | } |
252b5132 RH |
1569 | |
1570 | static INLINE int | |
e3bb37b5 | 1571 | fits_in_signed_word (offsetT num) |
252b5132 RH |
1572 | { |
1573 | return (-32768 <= num) && (num <= 32767); | |
47926f60 | 1574 | } |
2a962e6d | 1575 | |
3e73aa7c | 1576 | static INLINE int |
e3bb37b5 | 1577 | fits_in_signed_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1578 | { |
1579 | #ifndef BFD64 | |
1580 | return 1; | |
1581 | #else | |
1582 | return (!(((offsetT) -1 << 31) & num) | |
1583 | || (((offsetT) -1 << 31) & num) == ((offsetT) -1 << 31)); | |
1584 | #endif | |
1585 | } /* fits_in_signed_long() */ | |
2a962e6d | 1586 | |
3e73aa7c | 1587 | static INLINE int |
e3bb37b5 | 1588 | fits_in_unsigned_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1589 | { |
1590 | #ifndef BFD64 | |
1591 | return 1; | |
1592 | #else | |
1593 | return (num & (((offsetT) 2 << 31) - 1)) == num; | |
1594 | #endif | |
1595 | } /* fits_in_unsigned_long() */ | |
252b5132 | 1596 | |
c0f3af97 L |
1597 | static INLINE int |
1598 | fits_in_imm4 (offsetT num) | |
1599 | { | |
1600 | return (num & 0xf) == num; | |
1601 | } | |
1602 | ||
40fb9820 | 1603 | static i386_operand_type |
e3bb37b5 | 1604 | smallest_imm_type (offsetT num) |
252b5132 | 1605 | { |
40fb9820 L |
1606 | i386_operand_type t; |
1607 | ||
0dfbf9d7 | 1608 | operand_type_set (&t, 0); |
40fb9820 L |
1609 | t.bitfield.imm64 = 1; |
1610 | ||
1611 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
1612 | { |
1613 | /* This code is disabled on the 486 because all the Imm1 forms | |
1614 | in the opcode table are slower on the i486. They're the | |
1615 | versions with the implicitly specified single-position | |
1616 | displacement, which has another syntax if you really want to | |
1617 | use that form. */ | |
40fb9820 L |
1618 | t.bitfield.imm1 = 1; |
1619 | t.bitfield.imm8 = 1; | |
1620 | t.bitfield.imm8s = 1; | |
1621 | t.bitfield.imm16 = 1; | |
1622 | t.bitfield.imm32 = 1; | |
1623 | t.bitfield.imm32s = 1; | |
1624 | } | |
1625 | else if (fits_in_signed_byte (num)) | |
1626 | { | |
1627 | t.bitfield.imm8 = 1; | |
1628 | t.bitfield.imm8s = 1; | |
1629 | t.bitfield.imm16 = 1; | |
1630 | t.bitfield.imm32 = 1; | |
1631 | t.bitfield.imm32s = 1; | |
1632 | } | |
1633 | else if (fits_in_unsigned_byte (num)) | |
1634 | { | |
1635 | t.bitfield.imm8 = 1; | |
1636 | t.bitfield.imm16 = 1; | |
1637 | t.bitfield.imm32 = 1; | |
1638 | t.bitfield.imm32s = 1; | |
1639 | } | |
1640 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
1641 | { | |
1642 | t.bitfield.imm16 = 1; | |
1643 | t.bitfield.imm32 = 1; | |
1644 | t.bitfield.imm32s = 1; | |
1645 | } | |
1646 | else if (fits_in_signed_long (num)) | |
1647 | { | |
1648 | t.bitfield.imm32 = 1; | |
1649 | t.bitfield.imm32s = 1; | |
1650 | } | |
1651 | else if (fits_in_unsigned_long (num)) | |
1652 | t.bitfield.imm32 = 1; | |
1653 | ||
1654 | return t; | |
47926f60 | 1655 | } |
252b5132 | 1656 | |
847f7ad4 | 1657 | static offsetT |
e3bb37b5 | 1658 | offset_in_range (offsetT val, int size) |
847f7ad4 | 1659 | { |
508866be | 1660 | addressT mask; |
ba2adb93 | 1661 | |
847f7ad4 AM |
1662 | switch (size) |
1663 | { | |
508866be L |
1664 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
1665 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3b0ec529 | 1666 | case 4: mask = ((addressT) 2 << 31) - 1; break; |
3e73aa7c JH |
1667 | #ifdef BFD64 |
1668 | case 8: mask = ((addressT) 2 << 63) - 1; break; | |
1669 | #endif | |
47926f60 | 1670 | default: abort (); |
847f7ad4 AM |
1671 | } |
1672 | ||
ba2adb93 | 1673 | /* If BFD64, sign extend val. */ |
3e73aa7c JH |
1674 | if (!use_rela_relocations) |
1675 | if ((val & ~(((addressT) 2 << 31) - 1)) == 0) | |
1676 | val = (val ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
ba2adb93 | 1677 | |
47926f60 | 1678 | if ((val & ~mask) != 0 && (val & ~mask) != ~mask) |
847f7ad4 AM |
1679 | { |
1680 | char buf1[40], buf2[40]; | |
1681 | ||
1682 | sprint_value (buf1, val); | |
1683 | sprint_value (buf2, val & mask); | |
1684 | as_warn (_("%s shortened to %s"), buf1, buf2); | |
1685 | } | |
1686 | return val & mask; | |
1687 | } | |
1688 | ||
252b5132 RH |
1689 | /* Returns 0 if attempting to add a prefix where one from the same |
1690 | class already exists, 1 if non rep/repne added, 2 if rep/repne | |
1691 | added. */ | |
1692 | static int | |
e3bb37b5 | 1693 | add_prefix (unsigned int prefix) |
252b5132 RH |
1694 | { |
1695 | int ret = 1; | |
b1905489 | 1696 | unsigned int q; |
252b5132 | 1697 | |
29b0f896 AM |
1698 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
1699 | && flag_code == CODE_64BIT) | |
b1905489 | 1700 | { |
161a04f6 L |
1701 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
1702 | || ((i.prefix[REX_PREFIX] & (REX_R | REX_X | REX_B)) | |
1703 | && (prefix & (REX_R | REX_X | REX_B)))) | |
b1905489 JB |
1704 | ret = 0; |
1705 | q = REX_PREFIX; | |
1706 | } | |
3e73aa7c | 1707 | else |
b1905489 JB |
1708 | { |
1709 | switch (prefix) | |
1710 | { | |
1711 | default: | |
1712 | abort (); | |
1713 | ||
1714 | case CS_PREFIX_OPCODE: | |
1715 | case DS_PREFIX_OPCODE: | |
1716 | case ES_PREFIX_OPCODE: | |
1717 | case FS_PREFIX_OPCODE: | |
1718 | case GS_PREFIX_OPCODE: | |
1719 | case SS_PREFIX_OPCODE: | |
1720 | q = SEG_PREFIX; | |
1721 | break; | |
1722 | ||
1723 | case REPNE_PREFIX_OPCODE: | |
1724 | case REPE_PREFIX_OPCODE: | |
1725 | ret = 2; | |
1726 | /* fall thru */ | |
1727 | case LOCK_PREFIX_OPCODE: | |
1728 | q = LOCKREP_PREFIX; | |
1729 | break; | |
1730 | ||
1731 | case FWAIT_OPCODE: | |
1732 | q = WAIT_PREFIX; | |
1733 | break; | |
1734 | ||
1735 | case ADDR_PREFIX_OPCODE: | |
1736 | q = ADDR_PREFIX; | |
1737 | break; | |
1738 | ||
1739 | case DATA_PREFIX_OPCODE: | |
1740 | q = DATA_PREFIX; | |
1741 | break; | |
1742 | } | |
1743 | if (i.prefix[q] != 0) | |
1744 | ret = 0; | |
1745 | } | |
252b5132 | 1746 | |
b1905489 | 1747 | if (ret) |
252b5132 | 1748 | { |
b1905489 JB |
1749 | if (!i.prefix[q]) |
1750 | ++i.prefixes; | |
1751 | i.prefix[q] |= prefix; | |
252b5132 | 1752 | } |
b1905489 JB |
1753 | else |
1754 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 1755 | |
252b5132 RH |
1756 | return ret; |
1757 | } | |
1758 | ||
1759 | static void | |
e3bb37b5 | 1760 | set_code_flag (int value) |
eecb386c | 1761 | { |
3e73aa7c | 1762 | flag_code = value; |
40fb9820 L |
1763 | if (flag_code == CODE_64BIT) |
1764 | { | |
1765 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1766 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
40fb9820 L |
1767 | } |
1768 | else | |
1769 | { | |
1770 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1771 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
40fb9820 L |
1772 | } |
1773 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c JH |
1774 | { |
1775 | as_bad (_("64bit mode not supported on this CPU.")); | |
1776 | } | |
40fb9820 | 1777 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c JH |
1778 | { |
1779 | as_bad (_("32bit mode not supported on this CPU.")); | |
1780 | } | |
eecb386c AM |
1781 | stackop_size = '\0'; |
1782 | } | |
1783 | ||
1784 | static void | |
e3bb37b5 | 1785 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 1786 | { |
3e73aa7c | 1787 | flag_code = new_code_flag; |
40fb9820 L |
1788 | if (flag_code != CODE_16BIT) |
1789 | abort (); | |
1790 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1791 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
9306ca4a | 1792 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
1793 | } |
1794 | ||
1795 | static void | |
e3bb37b5 | 1796 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
1797 | { |
1798 | /* Find out if register prefixing is specified. */ | |
1799 | int ask_naked_reg = 0; | |
1800 | ||
1801 | SKIP_WHITESPACE (); | |
29b0f896 | 1802 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 RH |
1803 | { |
1804 | char *string = input_line_pointer; | |
1805 | int e = get_symbol_end (); | |
1806 | ||
47926f60 | 1807 | if (strcmp (string, "prefix") == 0) |
252b5132 | 1808 | ask_naked_reg = 1; |
47926f60 | 1809 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
1810 | ask_naked_reg = -1; |
1811 | else | |
d0b47220 | 1812 | as_bad (_("bad argument to syntax directive.")); |
252b5132 RH |
1813 | *input_line_pointer = e; |
1814 | } | |
1815 | demand_empty_rest_of_line (); | |
c3332e24 | 1816 | |
252b5132 RH |
1817 | intel_syntax = syntax_flag; |
1818 | ||
1819 | if (ask_naked_reg == 0) | |
f86103b7 AM |
1820 | allow_naked_reg = (intel_syntax |
1821 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
1822 | else |
1823 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 1824 | |
e4a3b5a4 | 1825 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 1826 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 1827 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
1828 | } |
1829 | ||
1efbbeb4 L |
1830 | static void |
1831 | set_intel_mnemonic (int mnemonic_flag) | |
1832 | { | |
e1d4d893 | 1833 | intel_mnemonic = mnemonic_flag; |
1efbbeb4 L |
1834 | } |
1835 | ||
db51cc60 L |
1836 | static void |
1837 | set_allow_index_reg (int flag) | |
1838 | { | |
1839 | allow_index_reg = flag; | |
1840 | } | |
1841 | ||
e413e4e9 | 1842 | static void |
e3bb37b5 | 1843 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 1844 | { |
47926f60 | 1845 | SKIP_WHITESPACE (); |
e413e4e9 | 1846 | |
29b0f896 | 1847 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 AM |
1848 | { |
1849 | char *string = input_line_pointer; | |
1850 | int e = get_symbol_end (); | |
9103f4f4 | 1851 | unsigned int i; |
40fb9820 | 1852 | i386_cpu_flags flags; |
e413e4e9 | 1853 | |
9103f4f4 | 1854 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) |
e413e4e9 AM |
1855 | { |
1856 | if (strcmp (string, cpu_arch[i].name) == 0) | |
1857 | { | |
5c6af06e JB |
1858 | if (*string != '.') |
1859 | { | |
1860 | cpu_arch_name = cpu_arch[i].name; | |
1861 | cpu_sub_arch_name = NULL; | |
40fb9820 L |
1862 | cpu_arch_flags = cpu_arch[i].flags; |
1863 | if (flag_code == CODE_64BIT) | |
1864 | { | |
1865 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1866 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
1867 | } | |
1868 | else | |
1869 | { | |
1870 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1871 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
1872 | } | |
ccc9c027 | 1873 | cpu_arch_isa = cpu_arch[i].type; |
9103f4f4 | 1874 | cpu_arch_isa_flags = cpu_arch[i].flags; |
ccc9c027 L |
1875 | if (!cpu_arch_tune_set) |
1876 | { | |
1877 | cpu_arch_tune = cpu_arch_isa; | |
1878 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
1879 | } | |
5c6af06e JB |
1880 | break; |
1881 | } | |
40fb9820 | 1882 | |
c6fb90c8 L |
1883 | flags = cpu_flags_or (cpu_arch_flags, |
1884 | cpu_arch[i].flags); | |
0dfbf9d7 | 1885 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
5c6af06e | 1886 | { |
6305a203 L |
1887 | if (cpu_sub_arch_name) |
1888 | { | |
1889 | char *name = cpu_sub_arch_name; | |
1890 | cpu_sub_arch_name = concat (name, | |
1891 | cpu_arch[i].name, | |
1bf57e9f | 1892 | (const char *) NULL); |
6305a203 L |
1893 | free (name); |
1894 | } | |
1895 | else | |
1896 | cpu_sub_arch_name = xstrdup (cpu_arch[i].name); | |
40fb9820 | 1897 | cpu_arch_flags = flags; |
5c6af06e JB |
1898 | } |
1899 | *input_line_pointer = e; | |
1900 | demand_empty_rest_of_line (); | |
1901 | return; | |
e413e4e9 AM |
1902 | } |
1903 | } | |
9103f4f4 | 1904 | if (i >= ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
1905 | as_bad (_("no such architecture: `%s'"), string); |
1906 | ||
1907 | *input_line_pointer = e; | |
1908 | } | |
1909 | else | |
1910 | as_bad (_("missing cpu architecture")); | |
1911 | ||
fddf5b5b AM |
1912 | no_cond_jump_promotion = 0; |
1913 | if (*input_line_pointer == ',' | |
29b0f896 | 1914 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b AM |
1915 | { |
1916 | char *string = ++input_line_pointer; | |
1917 | int e = get_symbol_end (); | |
1918 | ||
1919 | if (strcmp (string, "nojumps") == 0) | |
1920 | no_cond_jump_promotion = 1; | |
1921 | else if (strcmp (string, "jumps") == 0) | |
1922 | ; | |
1923 | else | |
1924 | as_bad (_("no such architecture modifier: `%s'"), string); | |
1925 | ||
1926 | *input_line_pointer = e; | |
1927 | } | |
1928 | ||
e413e4e9 AM |
1929 | demand_empty_rest_of_line (); |
1930 | } | |
1931 | ||
b9d79e03 JH |
1932 | unsigned long |
1933 | i386_mach () | |
1934 | { | |
1935 | if (!strcmp (default_arch, "x86_64")) | |
1936 | return bfd_mach_x86_64; | |
1937 | else if (!strcmp (default_arch, "i386")) | |
1938 | return bfd_mach_i386_i386; | |
1939 | else | |
1940 | as_fatal (_("Unknown architecture")); | |
1941 | } | |
b9d79e03 | 1942 | \f |
252b5132 RH |
1943 | void |
1944 | md_begin () | |
1945 | { | |
1946 | const char *hash_err; | |
1947 | ||
47926f60 | 1948 | /* Initialize op_hash hash table. */ |
252b5132 RH |
1949 | op_hash = hash_new (); |
1950 | ||
1951 | { | |
29b0f896 AM |
1952 | const template *optab; |
1953 | templates *core_optab; | |
252b5132 | 1954 | |
47926f60 KH |
1955 | /* Setup for loop. */ |
1956 | optab = i386_optab; | |
252b5132 RH |
1957 | core_optab = (templates *) xmalloc (sizeof (templates)); |
1958 | core_optab->start = optab; | |
1959 | ||
1960 | while (1) | |
1961 | { | |
1962 | ++optab; | |
1963 | if (optab->name == NULL | |
1964 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
1965 | { | |
1966 | /* different name --> ship out current template list; | |
47926f60 | 1967 | add to hash table; & begin anew. */ |
252b5132 RH |
1968 | core_optab->end = optab; |
1969 | hash_err = hash_insert (op_hash, | |
1970 | (optab - 1)->name, | |
1971 | (PTR) core_optab); | |
1972 | if (hash_err) | |
1973 | { | |
252b5132 RH |
1974 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
1975 | (optab - 1)->name, | |
1976 | hash_err); | |
1977 | } | |
1978 | if (optab->name == NULL) | |
1979 | break; | |
1980 | core_optab = (templates *) xmalloc (sizeof (templates)); | |
1981 | core_optab->start = optab; | |
1982 | } | |
1983 | } | |
1984 | } | |
1985 | ||
47926f60 | 1986 | /* Initialize reg_hash hash table. */ |
252b5132 RH |
1987 | reg_hash = hash_new (); |
1988 | { | |
29b0f896 | 1989 | const reg_entry *regtab; |
c3fe08fa | 1990 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 1991 | |
c3fe08fa | 1992 | for (regtab = i386_regtab; regtab_size--; regtab++) |
252b5132 RH |
1993 | { |
1994 | hash_err = hash_insert (reg_hash, regtab->reg_name, (PTR) regtab); | |
1995 | if (hash_err) | |
3e73aa7c JH |
1996 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
1997 | regtab->reg_name, | |
1998 | hash_err); | |
252b5132 RH |
1999 | } |
2000 | } | |
2001 | ||
47926f60 | 2002 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 2003 | { |
29b0f896 AM |
2004 | int c; |
2005 | char *p; | |
252b5132 RH |
2006 | |
2007 | for (c = 0; c < 256; c++) | |
2008 | { | |
3882b010 | 2009 | if (ISDIGIT (c)) |
252b5132 RH |
2010 | { |
2011 | digit_chars[c] = c; | |
2012 | mnemonic_chars[c] = c; | |
2013 | register_chars[c] = c; | |
2014 | operand_chars[c] = c; | |
2015 | } | |
3882b010 | 2016 | else if (ISLOWER (c)) |
252b5132 RH |
2017 | { |
2018 | mnemonic_chars[c] = c; | |
2019 | register_chars[c] = c; | |
2020 | operand_chars[c] = c; | |
2021 | } | |
3882b010 | 2022 | else if (ISUPPER (c)) |
252b5132 | 2023 | { |
3882b010 | 2024 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
2025 | register_chars[c] = mnemonic_chars[c]; |
2026 | operand_chars[c] = c; | |
2027 | } | |
2028 | ||
3882b010 | 2029 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
2030 | identifier_chars[c] = c; |
2031 | else if (c >= 128) | |
2032 | { | |
2033 | identifier_chars[c] = c; | |
2034 | operand_chars[c] = c; | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | #ifdef LEX_AT | |
2039 | identifier_chars['@'] = '@'; | |
32137342 NC |
2040 | #endif |
2041 | #ifdef LEX_QM | |
2042 | identifier_chars['?'] = '?'; | |
2043 | operand_chars['?'] = '?'; | |
252b5132 | 2044 | #endif |
252b5132 | 2045 | digit_chars['-'] = '-'; |
c0f3af97 | 2046 | mnemonic_chars['_'] = '_'; |
791fe849 | 2047 | mnemonic_chars['-'] = '-'; |
0003779b | 2048 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
2049 | identifier_chars['_'] = '_'; |
2050 | identifier_chars['.'] = '.'; | |
2051 | ||
2052 | for (p = operand_special_chars; *p != '\0'; p++) | |
2053 | operand_chars[(unsigned char) *p] = *p; | |
2054 | } | |
2055 | ||
2056 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 2057 | if (IS_ELF) |
252b5132 RH |
2058 | { |
2059 | record_alignment (text_section, 2); | |
2060 | record_alignment (data_section, 2); | |
2061 | record_alignment (bss_section, 2); | |
2062 | } | |
2063 | #endif | |
a4447b93 RH |
2064 | |
2065 | if (flag_code == CODE_64BIT) | |
2066 | { | |
2067 | x86_dwarf2_return_column = 16; | |
2068 | x86_cie_data_alignment = -8; | |
2069 | } | |
2070 | else | |
2071 | { | |
2072 | x86_dwarf2_return_column = 8; | |
2073 | x86_cie_data_alignment = -4; | |
2074 | } | |
252b5132 RH |
2075 | } |
2076 | ||
2077 | void | |
e3bb37b5 | 2078 | i386_print_statistics (FILE *file) |
252b5132 RH |
2079 | { |
2080 | hash_print_statistics (file, "i386 opcode", op_hash); | |
2081 | hash_print_statistics (file, "i386 register", reg_hash); | |
2082 | } | |
2083 | \f | |
252b5132 RH |
2084 | #ifdef DEBUG386 |
2085 | ||
ce8a8b2f | 2086 | /* Debugging routines for md_assemble. */ |
e3bb37b5 | 2087 | static void pte (template *); |
40fb9820 | 2088 | static void pt (i386_operand_type); |
e3bb37b5 L |
2089 | static void pe (expressionS *); |
2090 | static void ps (symbolS *); | |
252b5132 RH |
2091 | |
2092 | static void | |
e3bb37b5 | 2093 | pi (char *line, i386_insn *x) |
252b5132 | 2094 | { |
09f131f2 | 2095 | unsigned int i; |
252b5132 RH |
2096 | |
2097 | fprintf (stdout, "%s: template ", line); | |
2098 | pte (&x->tm); | |
09f131f2 JH |
2099 | fprintf (stdout, " address: base %s index %s scale %x\n", |
2100 | x->base_reg ? x->base_reg->reg_name : "none", | |
2101 | x->index_reg ? x->index_reg->reg_name : "none", | |
2102 | x->log2_scale_factor); | |
2103 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 2104 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
2105 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
2106 | x->sib.base, x->sib.index, x->sib.scale); | |
2107 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
2108 | (x->rex & REX_W) != 0, |
2109 | (x->rex & REX_R) != 0, | |
2110 | (x->rex & REX_X) != 0, | |
2111 | (x->rex & REX_B) != 0); | |
85f10a01 MM |
2112 | fprintf (stdout, " drex: reg %d rex 0x%x\n", |
2113 | x->drex.reg, x->drex.rex); | |
252b5132 RH |
2114 | for (i = 0; i < x->operands; i++) |
2115 | { | |
2116 | fprintf (stdout, " #%d: ", i + 1); | |
2117 | pt (x->types[i]); | |
2118 | fprintf (stdout, "\n"); | |
40fb9820 L |
2119 | if (x->types[i].bitfield.reg8 |
2120 | || x->types[i].bitfield.reg16 | |
2121 | || x->types[i].bitfield.reg32 | |
2122 | || x->types[i].bitfield.reg64 | |
2123 | || x->types[i].bitfield.regmmx | |
2124 | || x->types[i].bitfield.regxmm | |
c0f3af97 | 2125 | || x->types[i].bitfield.regymm |
40fb9820 L |
2126 | || x->types[i].bitfield.sreg2 |
2127 | || x->types[i].bitfield.sreg3 | |
2128 | || x->types[i].bitfield.control | |
2129 | || x->types[i].bitfield.debug | |
2130 | || x->types[i].bitfield.test) | |
520dc8e8 | 2131 | fprintf (stdout, "%s\n", x->op[i].regs->reg_name); |
40fb9820 | 2132 | if (operand_type_check (x->types[i], imm)) |
520dc8e8 | 2133 | pe (x->op[i].imms); |
40fb9820 | 2134 | if (operand_type_check (x->types[i], disp)) |
520dc8e8 | 2135 | pe (x->op[i].disps); |
252b5132 RH |
2136 | } |
2137 | } | |
2138 | ||
2139 | static void | |
e3bb37b5 | 2140 | pte (template *t) |
252b5132 | 2141 | { |
09f131f2 | 2142 | unsigned int i; |
252b5132 | 2143 | fprintf (stdout, " %d operands ", t->operands); |
47926f60 | 2144 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
2145 | if (t->extension_opcode != None) |
2146 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 2147 | if (t->opcode_modifier.d) |
252b5132 | 2148 | fprintf (stdout, "D"); |
40fb9820 | 2149 | if (t->opcode_modifier.w) |
252b5132 RH |
2150 | fprintf (stdout, "W"); |
2151 | fprintf (stdout, "\n"); | |
2152 | for (i = 0; i < t->operands; i++) | |
2153 | { | |
2154 | fprintf (stdout, " #%d type ", i + 1); | |
2155 | pt (t->operand_types[i]); | |
2156 | fprintf (stdout, "\n"); | |
2157 | } | |
2158 | } | |
2159 | ||
2160 | static void | |
e3bb37b5 | 2161 | pe (expressionS *e) |
252b5132 | 2162 | { |
24eab124 | 2163 | fprintf (stdout, " operation %d\n", e->X_op); |
b77ad1d4 AM |
2164 | fprintf (stdout, " add_number %ld (%lx)\n", |
2165 | (long) e->X_add_number, (long) e->X_add_number); | |
252b5132 RH |
2166 | if (e->X_add_symbol) |
2167 | { | |
2168 | fprintf (stdout, " add_symbol "); | |
2169 | ps (e->X_add_symbol); | |
2170 | fprintf (stdout, "\n"); | |
2171 | } | |
2172 | if (e->X_op_symbol) | |
2173 | { | |
2174 | fprintf (stdout, " op_symbol "); | |
2175 | ps (e->X_op_symbol); | |
2176 | fprintf (stdout, "\n"); | |
2177 | } | |
2178 | } | |
2179 | ||
2180 | static void | |
e3bb37b5 | 2181 | ps (symbolS *s) |
252b5132 RH |
2182 | { |
2183 | fprintf (stdout, "%s type %s%s", | |
2184 | S_GET_NAME (s), | |
2185 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
2186 | segment_name (S_GET_SEGMENT (s))); | |
2187 | } | |
2188 | ||
7b81dfbb | 2189 | static struct type_name |
252b5132 | 2190 | { |
40fb9820 L |
2191 | i386_operand_type mask; |
2192 | const char *name; | |
252b5132 | 2193 | } |
7b81dfbb | 2194 | const type_names[] = |
252b5132 | 2195 | { |
40fb9820 L |
2196 | { OPERAND_TYPE_REG8, "r8" }, |
2197 | { OPERAND_TYPE_REG16, "r16" }, | |
2198 | { OPERAND_TYPE_REG32, "r32" }, | |
2199 | { OPERAND_TYPE_REG64, "r64" }, | |
2200 | { OPERAND_TYPE_IMM8, "i8" }, | |
2201 | { OPERAND_TYPE_IMM8, "i8s" }, | |
2202 | { OPERAND_TYPE_IMM16, "i16" }, | |
2203 | { OPERAND_TYPE_IMM32, "i32" }, | |
2204 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
2205 | { OPERAND_TYPE_IMM64, "i64" }, | |
2206 | { OPERAND_TYPE_IMM1, "i1" }, | |
2207 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
2208 | { OPERAND_TYPE_DISP8, "d8" }, | |
2209 | { OPERAND_TYPE_DISP16, "d16" }, | |
2210 | { OPERAND_TYPE_DISP32, "d32" }, | |
2211 | { OPERAND_TYPE_DISP32S, "d32s" }, | |
2212 | { OPERAND_TYPE_DISP64, "d64" }, | |
2213 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
2214 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
2215 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
2216 | { OPERAND_TYPE_TEST, "test reg" }, | |
2217 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
2218 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
2219 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
2220 | { OPERAND_TYPE_SREG2, "SReg2" }, | |
2221 | { OPERAND_TYPE_SREG3, "SReg3" }, | |
2222 | { OPERAND_TYPE_ACC, "Acc" }, | |
2223 | { OPERAND_TYPE_JUMPABSOLUTE, "Jump Absolute" }, | |
2224 | { OPERAND_TYPE_REGMMX, "rMMX" }, | |
2225 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
2226 | { OPERAND_TYPE_ESSEG, "es" }, | |
c0f3af97 | 2227 | { OPERAND_TYPE_VEX_IMM4, "VEX i4" }, |
252b5132 RH |
2228 | }; |
2229 | ||
2230 | static void | |
40fb9820 | 2231 | pt (i386_operand_type t) |
252b5132 | 2232 | { |
40fb9820 | 2233 | unsigned int j; |
c6fb90c8 | 2234 | i386_operand_type a; |
252b5132 | 2235 | |
40fb9820 | 2236 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
2237 | { |
2238 | a = operand_type_and (t, type_names[j].mask); | |
2239 | if (!UINTS_ALL_ZERO (a)) | |
2240 | fprintf (stdout, "%s, ", type_names[j].name); | |
2241 | } | |
252b5132 RH |
2242 | fflush (stdout); |
2243 | } | |
2244 | ||
2245 | #endif /* DEBUG386 */ | |
2246 | \f | |
252b5132 | 2247 | static bfd_reloc_code_real_type |
3956db08 | 2248 | reloc (unsigned int size, |
64e74474 AM |
2249 | int pcrel, |
2250 | int sign, | |
2251 | bfd_reloc_code_real_type other) | |
252b5132 | 2252 | { |
47926f60 | 2253 | if (other != NO_RELOC) |
3956db08 JB |
2254 | { |
2255 | reloc_howto_type *reloc; | |
2256 | ||
2257 | if (size == 8) | |
2258 | switch (other) | |
2259 | { | |
64e74474 AM |
2260 | case BFD_RELOC_X86_64_GOT32: |
2261 | return BFD_RELOC_X86_64_GOT64; | |
2262 | break; | |
2263 | case BFD_RELOC_X86_64_PLTOFF64: | |
2264 | return BFD_RELOC_X86_64_PLTOFF64; | |
2265 | break; | |
2266 | case BFD_RELOC_X86_64_GOTPC32: | |
2267 | other = BFD_RELOC_X86_64_GOTPC64; | |
2268 | break; | |
2269 | case BFD_RELOC_X86_64_GOTPCREL: | |
2270 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
2271 | break; | |
2272 | case BFD_RELOC_X86_64_TPOFF32: | |
2273 | other = BFD_RELOC_X86_64_TPOFF64; | |
2274 | break; | |
2275 | case BFD_RELOC_X86_64_DTPOFF32: | |
2276 | other = BFD_RELOC_X86_64_DTPOFF64; | |
2277 | break; | |
2278 | default: | |
2279 | break; | |
3956db08 | 2280 | } |
e05278af JB |
2281 | |
2282 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ | |
2283 | if (size == 4 && flag_code != CODE_64BIT) | |
2284 | sign = -1; | |
2285 | ||
3956db08 JB |
2286 | reloc = bfd_reloc_type_lookup (stdoutput, other); |
2287 | if (!reloc) | |
2288 | as_bad (_("unknown relocation (%u)"), other); | |
2289 | else if (size != bfd_get_reloc_size (reloc)) | |
2290 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), | |
2291 | bfd_get_reloc_size (reloc), | |
2292 | size); | |
2293 | else if (pcrel && !reloc->pc_relative) | |
2294 | as_bad (_("non-pc-relative relocation for pc-relative field")); | |
2295 | else if ((reloc->complain_on_overflow == complain_overflow_signed | |
2296 | && !sign) | |
2297 | || (reloc->complain_on_overflow == complain_overflow_unsigned | |
64e74474 | 2298 | && sign > 0)) |
3956db08 JB |
2299 | as_bad (_("relocated field and relocation type differ in signedness")); |
2300 | else | |
2301 | return other; | |
2302 | return NO_RELOC; | |
2303 | } | |
252b5132 RH |
2304 | |
2305 | if (pcrel) | |
2306 | { | |
3e73aa7c | 2307 | if (!sign) |
3956db08 | 2308 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
2309 | switch (size) |
2310 | { | |
2311 | case 1: return BFD_RELOC_8_PCREL; | |
2312 | case 2: return BFD_RELOC_16_PCREL; | |
2313 | case 4: return BFD_RELOC_32_PCREL; | |
d6ab8113 | 2314 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 2315 | } |
3956db08 | 2316 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
2317 | } |
2318 | else | |
2319 | { | |
3956db08 | 2320 | if (sign > 0) |
e5cb08ac | 2321 | switch (size) |
3e73aa7c JH |
2322 | { |
2323 | case 4: return BFD_RELOC_X86_64_32S; | |
2324 | } | |
2325 | else | |
2326 | switch (size) | |
2327 | { | |
2328 | case 1: return BFD_RELOC_8; | |
2329 | case 2: return BFD_RELOC_16; | |
2330 | case 4: return BFD_RELOC_32; | |
2331 | case 8: return BFD_RELOC_64; | |
2332 | } | |
3956db08 JB |
2333 | as_bad (_("cannot do %s %u byte relocation"), |
2334 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
2335 | } |
2336 | ||
bfb32b52 | 2337 | abort (); |
252b5132 RH |
2338 | return BFD_RELOC_NONE; |
2339 | } | |
2340 | ||
47926f60 KH |
2341 | /* Here we decide which fixups can be adjusted to make them relative to |
2342 | the beginning of the section instead of the symbol. Basically we need | |
2343 | to make sure that the dynamic relocations are done correctly, so in | |
2344 | some cases we force the original symbol to be used. */ | |
2345 | ||
252b5132 | 2346 | int |
e3bb37b5 | 2347 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 2348 | { |
6d249963 | 2349 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 2350 | if (!IS_ELF) |
31312f95 AM |
2351 | return 1; |
2352 | ||
a161fe53 AM |
2353 | /* Don't adjust pc-relative references to merge sections in 64-bit |
2354 | mode. */ | |
2355 | if (use_rela_relocations | |
2356 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
2357 | && fixP->fx_pcrel) | |
252b5132 | 2358 | return 0; |
31312f95 | 2359 | |
8d01d9a9 AJ |
2360 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
2361 | and changed later by validate_fix. */ | |
2362 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
2363 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
2364 | return 0; | |
2365 | ||
ce8a8b2f | 2366 | /* adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
2367 | if (fixP->fx_r_type == BFD_RELOC_386_GOTOFF |
2368 | || fixP->fx_r_type == BFD_RELOC_386_PLT32 | |
2369 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 | |
13ae64f3 JJ |
2370 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
2371 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
2372 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
2373 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
2374 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
2375 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
2376 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
2377 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
2378 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
2379 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c JH |
2380 | || fixP->fx_r_type == BFD_RELOC_X86_64_PLT32 |
2381 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 | |
80b3ee89 | 2382 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
bffbf940 JJ |
2383 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
2384 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
2385 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 2386 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
2387 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
2388 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
2389 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
2390 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
2391 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
2392 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
2393 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
2394 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2395 | return 0; | |
31312f95 | 2396 | #endif |
252b5132 RH |
2397 | return 1; |
2398 | } | |
252b5132 | 2399 | |
b4cac588 | 2400 | static int |
e3bb37b5 | 2401 | intel_float_operand (const char *mnemonic) |
252b5132 | 2402 | { |
9306ca4a JB |
2403 | /* Note that the value returned is meaningful only for opcodes with (memory) |
2404 | operands, hence the code here is free to improperly handle opcodes that | |
2405 | have no operands (for better performance and smaller code). */ | |
2406 | ||
2407 | if (mnemonic[0] != 'f') | |
2408 | return 0; /* non-math */ | |
2409 | ||
2410 | switch (mnemonic[1]) | |
2411 | { | |
2412 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
2413 | the fs segment override prefix not currently handled because no | |
2414 | call path can make opcodes without operands get here */ | |
2415 | case 'i': | |
2416 | return 2 /* integer op */; | |
2417 | case 'l': | |
2418 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
2419 | return 3; /* fldcw/fldenv */ | |
2420 | break; | |
2421 | case 'n': | |
2422 | if (mnemonic[2] != 'o' /* fnop */) | |
2423 | return 3; /* non-waiting control op */ | |
2424 | break; | |
2425 | case 'r': | |
2426 | if (mnemonic[2] == 's') | |
2427 | return 3; /* frstor/frstpm */ | |
2428 | break; | |
2429 | case 's': | |
2430 | if (mnemonic[2] == 'a') | |
2431 | return 3; /* fsave */ | |
2432 | if (mnemonic[2] == 't') | |
2433 | { | |
2434 | switch (mnemonic[3]) | |
2435 | { | |
2436 | case 'c': /* fstcw */ | |
2437 | case 'd': /* fstdw */ | |
2438 | case 'e': /* fstenv */ | |
2439 | case 's': /* fsts[gw] */ | |
2440 | return 3; | |
2441 | } | |
2442 | } | |
2443 | break; | |
2444 | case 'x': | |
2445 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
2446 | return 0; /* fxsave/fxrstor are not really math ops */ | |
2447 | break; | |
2448 | } | |
252b5132 | 2449 | |
9306ca4a | 2450 | return 1; |
252b5132 RH |
2451 | } |
2452 | ||
c0f3af97 L |
2453 | /* Build the VEX prefix. */ |
2454 | ||
2455 | static void | |
2456 | build_vex_prefix (void) | |
2457 | { | |
2458 | unsigned int register_specifier; | |
2459 | unsigned int implied_prefix; | |
2460 | unsigned int vector_length; | |
2461 | ||
2462 | /* Check register specifier. */ | |
2463 | if (i.vex.register_specifier) | |
2464 | { | |
2465 | register_specifier = i.vex.register_specifier->reg_num; | |
2466 | if ((i.vex.register_specifier->reg_flags & RegRex)) | |
2467 | register_specifier += 8; | |
2468 | register_specifier = ~register_specifier & 0xf; | |
2469 | } | |
2470 | else | |
2471 | register_specifier = 0xf; | |
2472 | ||
2473 | vector_length = i.tm.opcode_modifier.vex256 ? 1 : 0; | |
2474 | ||
2475 | switch ((i.tm.base_opcode >> 8) & 0xff) | |
2476 | { | |
2477 | case 0: | |
2478 | implied_prefix = 0; | |
2479 | break; | |
2480 | case DATA_PREFIX_OPCODE: | |
2481 | implied_prefix = 1; | |
2482 | break; | |
2483 | case REPE_PREFIX_OPCODE: | |
2484 | implied_prefix = 2; | |
2485 | break; | |
2486 | case REPNE_PREFIX_OPCODE: | |
2487 | implied_prefix = 3; | |
2488 | break; | |
2489 | default: | |
2490 | abort (); | |
2491 | } | |
2492 | ||
2493 | /* Use 2-byte VEX prefix if possible. */ | |
2494 | if (i.tm.opcode_modifier.vex0f | |
2495 | && (i.rex & (REX_W | REX_X | REX_B)) == 0) | |
2496 | { | |
2497 | /* 2-byte VEX prefix. */ | |
2498 | unsigned int r; | |
2499 | ||
2500 | i.vex.length = 2; | |
2501 | i.vex.bytes[0] = 0xc5; | |
2502 | ||
2503 | /* Check the REX.R bit. */ | |
2504 | r = (i.rex & REX_R) ? 0 : 1; | |
2505 | i.vex.bytes[1] = (r << 7 | |
2506 | | register_specifier << 3 | |
2507 | | vector_length << 2 | |
2508 | | implied_prefix); | |
2509 | } | |
2510 | else | |
2511 | { | |
2512 | /* 3-byte VEX prefix. */ | |
2513 | unsigned int m, w; | |
2514 | ||
2515 | if (i.tm.opcode_modifier.vex0f) | |
2516 | m = 0x1; | |
2517 | else if (i.tm.opcode_modifier.vex0f38) | |
2518 | m = 0x2; | |
2519 | else if (i.tm.opcode_modifier.vex0f3a) | |
2520 | m = 0x3; | |
2521 | else | |
2522 | abort (); | |
2523 | ||
2524 | i.vex.length = 3; | |
2525 | i.vex.bytes[0] = 0xc4; | |
2526 | ||
2527 | /* The high 3 bits of the second VEX byte are 1's compliment | |
2528 | of RXB bits from REX. */ | |
2529 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m; | |
2530 | ||
2531 | /* Check the REX.W bit. */ | |
2532 | w = (i.rex & REX_W) ? 1 : 0; | |
2533 | if (i.tm.opcode_modifier.vexw0 || i.tm.opcode_modifier.vexw1) | |
2534 | { | |
2535 | if (w) | |
2536 | abort (); | |
2537 | ||
2538 | if (i.tm.opcode_modifier.vexw1) | |
2539 | w = 1; | |
2540 | } | |
2541 | ||
2542 | i.vex.bytes[2] = (w << 7 | |
2543 | | register_specifier << 3 | |
2544 | | vector_length << 2 | |
2545 | | implied_prefix); | |
2546 | } | |
2547 | } | |
2548 | ||
65da13b5 L |
2549 | static void |
2550 | process_immext (void) | |
2551 | { | |
2552 | expressionS *exp; | |
2553 | ||
2554 | if (i.tm.cpu_flags.bitfield.cpusse3 && i.operands > 0) | |
2555 | { | |
1fed0ba1 L |
2556 | /* SSE3 Instructions have the fixed operands with an opcode |
2557 | suffix which is coded in the same place as an 8-bit immediate | |
2558 | field would be. Here we check those operands and remove them | |
2559 | afterwards. */ | |
65da13b5 L |
2560 | unsigned int x; |
2561 | ||
2562 | for (x = 0; x < i.operands; x++) | |
2563 | if (i.op[x].regs->reg_num != x) | |
2564 | as_bad (_("can't use register '%s%s' as operand %d in '%s'."), | |
1fed0ba1 L |
2565 | register_prefix, i.op[x].regs->reg_name, x + 1, |
2566 | i.tm.name); | |
2567 | ||
2568 | i.operands = 0; | |
65da13b5 L |
2569 | } |
2570 | ||
c0f3af97 | 2571 | /* These AMD 3DNow! and SSE2 instructions have an opcode suffix |
65da13b5 L |
2572 | which is coded in the same place as an 8-bit immediate field |
2573 | would be. Here we fake an 8-bit immediate operand from the | |
2574 | opcode suffix stored in tm.extension_opcode. | |
2575 | ||
c0f3af97 L |
2576 | SSE5 and AVX instructions also use this encoding, for some of |
2577 | 3 argument instructions. */ | |
65da13b5 L |
2578 | |
2579 | assert (i.imm_operands == 0 | |
2580 | && (i.operands <= 2 | |
2581 | || (i.tm.cpu_flags.bitfield.cpusse5 | |
c0f3af97 L |
2582 | && i.operands <= 3) |
2583 | || (i.tm.opcode_modifier.vex | |
2584 | && i.operands <= 4))); | |
65da13b5 L |
2585 | |
2586 | exp = &im_expressions[i.imm_operands++]; | |
2587 | i.op[i.operands].imms = exp; | |
2588 | i.types[i.operands] = imm8; | |
2589 | i.operands++; | |
2590 | exp->X_op = O_constant; | |
2591 | exp->X_add_number = i.tm.extension_opcode; | |
2592 | i.tm.extension_opcode = None; | |
2593 | } | |
2594 | ||
252b5132 RH |
2595 | /* This is the guts of the machine-dependent assembler. LINE points to a |
2596 | machine dependent instruction. This function is supposed to emit | |
2597 | the frags/bytes it assembles to. */ | |
2598 | ||
2599 | void | |
65da13b5 | 2600 | md_assemble (char *line) |
252b5132 | 2601 | { |
40fb9820 | 2602 | unsigned int j; |
252b5132 RH |
2603 | char mnemonic[MAX_MNEM_SIZE]; |
2604 | ||
47926f60 | 2605 | /* Initialize globals. */ |
252b5132 RH |
2606 | memset (&i, '\0', sizeof (i)); |
2607 | for (j = 0; j < MAX_OPERANDS; j++) | |
1ae12ab7 | 2608 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
2609 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
2610 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 2611 | save_stack_p = save_stack; |
252b5132 RH |
2612 | |
2613 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
2614 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 2615 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 2616 | |
29b0f896 AM |
2617 | line = parse_insn (line, mnemonic); |
2618 | if (line == NULL) | |
2619 | return; | |
252b5132 | 2620 | |
29b0f896 AM |
2621 | line = parse_operands (line, mnemonic); |
2622 | if (line == NULL) | |
2623 | return; | |
252b5132 | 2624 | |
29b0f896 AM |
2625 | /* Now we've parsed the mnemonic into a set of templates, and have the |
2626 | operands at hand. */ | |
2627 | ||
2628 | /* All intel opcodes have reversed operands except for "bound" and | |
2629 | "enter". We also don't reverse intersegment "jmp" and "call" | |
2630 | instructions with 2 immediate operands so that the immediate segment | |
050dfa73 | 2631 | precedes the offset, as it does when in AT&T mode. */ |
4d456e3d L |
2632 | if (intel_syntax |
2633 | && i.operands > 1 | |
29b0f896 | 2634 | && (strcmp (mnemonic, "bound") != 0) |
30123838 | 2635 | && (strcmp (mnemonic, "invlpga") != 0) |
40fb9820 L |
2636 | && !(operand_type_check (i.types[0], imm) |
2637 | && operand_type_check (i.types[1], imm))) | |
29b0f896 AM |
2638 | swap_operands (); |
2639 | ||
ec56d5c0 JB |
2640 | /* The order of the immediates should be reversed |
2641 | for 2 immediates extrq and insertq instructions */ | |
2642 | if (i.imm_operands == 2 | |
2643 | && (strcmp (mnemonic, "extrq") == 0 | |
2644 | || strcmp (mnemonic, "insertq") == 0)) | |
2645 | swap_2_operands (0, 1); | |
2646 | ||
29b0f896 AM |
2647 | if (i.imm_operands) |
2648 | optimize_imm (); | |
2649 | ||
b300c311 L |
2650 | /* Don't optimize displacement for movabs since it only takes 64bit |
2651 | displacement. */ | |
2652 | if (i.disp_operands | |
2653 | && (flag_code != CODE_64BIT | |
2654 | || strcmp (mnemonic, "movabs") != 0)) | |
29b0f896 AM |
2655 | optimize_disp (); |
2656 | ||
2657 | /* Next, we find a template that matches the given insn, | |
2658 | making sure the overlap of the given operands types is consistent | |
2659 | with the template operand types. */ | |
252b5132 | 2660 | |
29b0f896 AM |
2661 | if (!match_template ()) |
2662 | return; | |
252b5132 | 2663 | |
321fd21e L |
2664 | /* Zap movzx and movsx suffix. The suffix has been set from |
2665 | "word ptr" or "byte ptr" on the source operand in Intel syntax | |
2666 | or extracted from mnemonic in AT&T syntax. But we'll use | |
2667 | the destination register to choose the suffix for encoding. */ | |
2668 | if ((i.tm.base_opcode & ~9) == 0x0fb6) | |
cd61ebfe | 2669 | { |
321fd21e L |
2670 | /* In Intel syntax, there must be a suffix. In AT&T syntax, if |
2671 | there is no suffix, the default will be byte extension. */ | |
2672 | if (i.reg_operands != 2 | |
2673 | && !i.suffix | |
2674 | && intel_syntax) | |
2675 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); | |
2676 | ||
2677 | i.suffix = 0; | |
cd61ebfe | 2678 | } |
24eab124 | 2679 | |
40fb9820 | 2680 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
2681 | if (!add_prefix (FWAIT_OPCODE)) |
2682 | return; | |
252b5132 | 2683 | |
29b0f896 | 2684 | /* Check string instruction segment overrides. */ |
40fb9820 | 2685 | if (i.tm.opcode_modifier.isstring && i.mem_operands != 0) |
29b0f896 AM |
2686 | { |
2687 | if (!check_string ()) | |
5dd0794d | 2688 | return; |
29b0f896 | 2689 | } |
5dd0794d | 2690 | |
29b0f896 AM |
2691 | if (!process_suffix ()) |
2692 | return; | |
e413e4e9 | 2693 | |
29b0f896 AM |
2694 | /* Make still unresolved immediate matches conform to size of immediate |
2695 | given in i.suffix. */ | |
2696 | if (!finalize_imm ()) | |
2697 | return; | |
252b5132 | 2698 | |
40fb9820 | 2699 | if (i.types[0].bitfield.imm1) |
29b0f896 | 2700 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 2701 | |
40fb9820 | 2702 | for (j = 0; j < 3; j++) |
c6fb90c8 L |
2703 | if (i.types[j].bitfield.inoutportreg |
2704 | || i.types[j].bitfield.shiftcount | |
2705 | || i.types[j].bitfield.acc | |
2706 | || i.types[j].bitfield.floatacc) | |
40fb9820 L |
2707 | i.reg_operands--; |
2708 | ||
c0f3af97 L |
2709 | /* ImmExt should be processed after SSE2AVX. */ |
2710 | if (!i.tm.opcode_modifier.sse2avx | |
2711 | && i.tm.opcode_modifier.immext) | |
65da13b5 | 2712 | process_immext (); |
252b5132 | 2713 | |
29b0f896 AM |
2714 | /* For insns with operands there are more diddles to do to the opcode. */ |
2715 | if (i.operands) | |
2716 | { | |
2717 | if (!process_operands ()) | |
2718 | return; | |
2719 | } | |
40fb9820 | 2720 | else if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 AM |
2721 | { |
2722 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
2723 | as_warn (_("translating to `%sp'"), i.tm.name); | |
2724 | } | |
252b5132 | 2725 | |
c0f3af97 L |
2726 | if (i.tm.opcode_modifier.vex) |
2727 | build_vex_prefix (); | |
2728 | ||
29b0f896 AM |
2729 | /* Handle conversion of 'int $3' --> special int3 insn. */ |
2730 | if (i.tm.base_opcode == INT_OPCODE && i.op[0].imms->X_add_number == 3) | |
2731 | { | |
2732 | i.tm.base_opcode = INT3_OPCODE; | |
2733 | i.imm_operands = 0; | |
2734 | } | |
252b5132 | 2735 | |
40fb9820 L |
2736 | if ((i.tm.opcode_modifier.jump |
2737 | || i.tm.opcode_modifier.jumpbyte | |
2738 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 AM |
2739 | && i.op[0].disps->X_op == O_constant) |
2740 | { | |
2741 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
2742 | the absolute address given by the constant. Since ix86 jumps and | |
2743 | calls are pc relative, we need to generate a reloc. */ | |
2744 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
2745 | i.op[0].disps->X_op = O_symbol; | |
2746 | } | |
252b5132 | 2747 | |
40fb9820 | 2748 | if (i.tm.opcode_modifier.rex64) |
161a04f6 | 2749 | i.rex |= REX_W; |
252b5132 | 2750 | |
29b0f896 AM |
2751 | /* For 8 bit registers we need an empty rex prefix. Also if the |
2752 | instruction already has a prefix, we need to convert old | |
2753 | registers to new ones. */ | |
773f551c | 2754 | |
40fb9820 | 2755 | if ((i.types[0].bitfield.reg8 |
29b0f896 | 2756 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
40fb9820 | 2757 | || (i.types[1].bitfield.reg8 |
29b0f896 | 2758 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
40fb9820 L |
2759 | || ((i.types[0].bitfield.reg8 |
2760 | || i.types[1].bitfield.reg8) | |
29b0f896 AM |
2761 | && i.rex != 0)) |
2762 | { | |
2763 | int x; | |
726c5dcd | 2764 | |
29b0f896 AM |
2765 | i.rex |= REX_OPCODE; |
2766 | for (x = 0; x < 2; x++) | |
2767 | { | |
2768 | /* Look for 8 bit operand that uses old registers. */ | |
40fb9820 | 2769 | if (i.types[x].bitfield.reg8 |
29b0f896 | 2770 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 2771 | { |
29b0f896 AM |
2772 | /* In case it is "hi" register, give up. */ |
2773 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 2774 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 2775 | "instruction requiring REX prefix."), |
a540244d | 2776 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 2777 | |
29b0f896 AM |
2778 | /* Otherwise it is equivalent to the extended register. |
2779 | Since the encoding doesn't change this is merely | |
2780 | cosmetic cleanup for debug output. */ | |
2781 | ||
2782 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 2783 | } |
29b0f896 AM |
2784 | } |
2785 | } | |
773f551c | 2786 | |
85f10a01 MM |
2787 | /* If the instruction has the DREX attribute (aka SSE5), don't emit a |
2788 | REX prefix. */ | |
2789 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
2790 | { | |
2791 | i.drex.rex = i.rex; | |
2792 | i.rex = 0; | |
2793 | } | |
2794 | else if (i.rex != 0) | |
29b0f896 AM |
2795 | add_prefix (REX_OPCODE | i.rex); |
2796 | ||
2797 | /* We are ready to output the insn. */ | |
2798 | output_insn (); | |
2799 | } | |
2800 | ||
2801 | static char * | |
e3bb37b5 | 2802 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
2803 | { |
2804 | char *l = line; | |
2805 | char *token_start = l; | |
2806 | char *mnem_p; | |
5c6af06e JB |
2807 | int supported; |
2808 | const template *t; | |
29b0f896 AM |
2809 | |
2810 | /* Non-zero if we found a prefix only acceptable with string insns. */ | |
2811 | const char *expecting_string_instruction = NULL; | |
45288df1 | 2812 | |
29b0f896 AM |
2813 | while (1) |
2814 | { | |
2815 | mnem_p = mnemonic; | |
2816 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
2817 | { | |
2818 | mnem_p++; | |
2819 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 2820 | { |
29b0f896 AM |
2821 | as_bad (_("no such instruction: `%s'"), token_start); |
2822 | return NULL; | |
2823 | } | |
2824 | l++; | |
2825 | } | |
2826 | if (!is_space_char (*l) | |
2827 | && *l != END_OF_INSN | |
e44823cf JB |
2828 | && (intel_syntax |
2829 | || (*l != PREFIX_SEPARATOR | |
2830 | && *l != ','))) | |
29b0f896 AM |
2831 | { |
2832 | as_bad (_("invalid character %s in mnemonic"), | |
2833 | output_invalid (*l)); | |
2834 | return NULL; | |
2835 | } | |
2836 | if (token_start == l) | |
2837 | { | |
e44823cf | 2838 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
2839 | as_bad (_("expecting prefix; got nothing")); |
2840 | else | |
2841 | as_bad (_("expecting mnemonic; got nothing")); | |
2842 | return NULL; | |
2843 | } | |
45288df1 | 2844 | |
29b0f896 AM |
2845 | /* Look up instruction (or prefix) via hash table. */ |
2846 | current_templates = hash_find (op_hash, mnemonic); | |
47926f60 | 2847 | |
29b0f896 AM |
2848 | if (*l != END_OF_INSN |
2849 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
2850 | && current_templates | |
40fb9820 | 2851 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 2852 | { |
c6fb90c8 | 2853 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
2854 | { |
2855 | as_bad ((flag_code != CODE_64BIT | |
2856 | ? _("`%s' is only supported in 64-bit mode") | |
2857 | : _("`%s' is not supported in 64-bit mode")), | |
2858 | current_templates->start->name); | |
2859 | return NULL; | |
2860 | } | |
29b0f896 AM |
2861 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
2862 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
40fb9820 L |
2863 | if ((current_templates->start->opcode_modifier.size16 |
2864 | || current_templates->start->opcode_modifier.size32) | |
29b0f896 | 2865 | && flag_code != CODE_64BIT |
40fb9820 | 2866 | && (current_templates->start->opcode_modifier.size32 |
29b0f896 AM |
2867 | ^ (flag_code == CODE_16BIT))) |
2868 | { | |
2869 | as_bad (_("redundant %s prefix"), | |
2870 | current_templates->start->name); | |
2871 | return NULL; | |
45288df1 | 2872 | } |
29b0f896 AM |
2873 | /* Add prefix, checking for repeated prefixes. */ |
2874 | switch (add_prefix (current_templates->start->base_opcode)) | |
2875 | { | |
2876 | case 0: | |
2877 | return NULL; | |
2878 | case 2: | |
2879 | expecting_string_instruction = current_templates->start->name; | |
2880 | break; | |
2881 | } | |
2882 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
2883 | token_start = ++l; | |
2884 | } | |
2885 | else | |
2886 | break; | |
2887 | } | |
45288df1 | 2888 | |
29b0f896 AM |
2889 | if (!current_templates) |
2890 | { | |
2891 | /* See if we can get a match by trimming off a suffix. */ | |
2892 | switch (mnem_p[-1]) | |
2893 | { | |
2894 | case WORD_MNEM_SUFFIX: | |
9306ca4a JB |
2895 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) |
2896 | i.suffix = SHORT_MNEM_SUFFIX; | |
2897 | else | |
29b0f896 AM |
2898 | case BYTE_MNEM_SUFFIX: |
2899 | case QWORD_MNEM_SUFFIX: | |
2900 | i.suffix = mnem_p[-1]; | |
2901 | mnem_p[-1] = '\0'; | |
2902 | current_templates = hash_find (op_hash, mnemonic); | |
2903 | break; | |
2904 | case SHORT_MNEM_SUFFIX: | |
2905 | case LONG_MNEM_SUFFIX: | |
2906 | if (!intel_syntax) | |
2907 | { | |
2908 | i.suffix = mnem_p[-1]; | |
2909 | mnem_p[-1] = '\0'; | |
2910 | current_templates = hash_find (op_hash, mnemonic); | |
2911 | } | |
2912 | break; | |
252b5132 | 2913 | |
29b0f896 AM |
2914 | /* Intel Syntax. */ |
2915 | case 'd': | |
2916 | if (intel_syntax) | |
2917 | { | |
9306ca4a | 2918 | if (intel_float_operand (mnemonic) == 1) |
29b0f896 AM |
2919 | i.suffix = SHORT_MNEM_SUFFIX; |
2920 | else | |
2921 | i.suffix = LONG_MNEM_SUFFIX; | |
2922 | mnem_p[-1] = '\0'; | |
2923 | current_templates = hash_find (op_hash, mnemonic); | |
2924 | } | |
2925 | break; | |
2926 | } | |
2927 | if (!current_templates) | |
2928 | { | |
2929 | as_bad (_("no such instruction: `%s'"), token_start); | |
2930 | return NULL; | |
2931 | } | |
2932 | } | |
252b5132 | 2933 | |
40fb9820 L |
2934 | if (current_templates->start->opcode_modifier.jump |
2935 | || current_templates->start->opcode_modifier.jumpbyte) | |
29b0f896 AM |
2936 | { |
2937 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
2938 | predict taken and predict not taken respectively. | |
2939 | I'm not sure that branch hints actually do anything on loop | |
2940 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
2941 | may work in the future and it doesn't hurt to accept them | |
2942 | now. */ | |
2943 | if (l[0] == ',' && l[1] == 'p') | |
2944 | { | |
2945 | if (l[2] == 't') | |
2946 | { | |
2947 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
2948 | return NULL; | |
2949 | l += 3; | |
2950 | } | |
2951 | else if (l[2] == 'n') | |
2952 | { | |
2953 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
2954 | return NULL; | |
2955 | l += 3; | |
2956 | } | |
2957 | } | |
2958 | } | |
2959 | /* Any other comma loses. */ | |
2960 | if (*l == ',') | |
2961 | { | |
2962 | as_bad (_("invalid character %s in mnemonic"), | |
2963 | output_invalid (*l)); | |
2964 | return NULL; | |
2965 | } | |
252b5132 | 2966 | |
29b0f896 | 2967 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
2968 | supported = 0; |
2969 | for (t = current_templates->start; t < current_templates->end; ++t) | |
2970 | { | |
c0f3af97 L |
2971 | supported |= cpu_flags_match (t); |
2972 | if (supported == CPU_FLAGS_PERFECT_MATCH) | |
3629bb00 | 2973 | goto skip; |
5c6af06e | 2974 | } |
3629bb00 | 2975 | |
c0f3af97 | 2976 | if (!(supported & CPU_FLAGS_64BIT_MATCH)) |
5c6af06e JB |
2977 | { |
2978 | as_bad (flag_code == CODE_64BIT | |
2979 | ? _("`%s' is not supported in 64-bit mode") | |
2980 | : _("`%s' is only supported in 64-bit mode"), | |
2981 | current_templates->start->name); | |
2982 | return NULL; | |
2983 | } | |
c0f3af97 | 2984 | if (supported != CPU_FLAGS_PERFECT_MATCH) |
29b0f896 | 2985 | { |
3629bb00 L |
2986 | as_bad (_("`%s' is not supported on `%s%s'"), |
2987 | current_templates->start->name, cpu_arch_name, | |
2988 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); | |
2989 | return NULL; | |
29b0f896 | 2990 | } |
3629bb00 L |
2991 | |
2992 | skip: | |
2993 | if (!cpu_arch_flags.bitfield.cpui386 | |
40fb9820 | 2994 | && (flag_code != CODE_16BIT)) |
29b0f896 AM |
2995 | { |
2996 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
2997 | } | |
252b5132 | 2998 | |
29b0f896 | 2999 | /* Check for rep/repne without a string instruction. */ |
f41bbced | 3000 | if (expecting_string_instruction) |
29b0f896 | 3001 | { |
f41bbced JB |
3002 | static templates override; |
3003 | ||
3004 | for (t = current_templates->start; t < current_templates->end; ++t) | |
40fb9820 | 3005 | if (t->opcode_modifier.isstring) |
f41bbced JB |
3006 | break; |
3007 | if (t >= current_templates->end) | |
3008 | { | |
3009 | as_bad (_("expecting string instruction after `%s'"), | |
64e74474 | 3010 | expecting_string_instruction); |
f41bbced JB |
3011 | return NULL; |
3012 | } | |
3013 | for (override.start = t; t < current_templates->end; ++t) | |
40fb9820 | 3014 | if (!t->opcode_modifier.isstring) |
f41bbced JB |
3015 | break; |
3016 | override.end = t; | |
3017 | current_templates = &override; | |
29b0f896 | 3018 | } |
252b5132 | 3019 | |
29b0f896 AM |
3020 | return l; |
3021 | } | |
252b5132 | 3022 | |
29b0f896 | 3023 | static char * |
e3bb37b5 | 3024 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
3025 | { |
3026 | char *token_start; | |
3138f287 | 3027 | |
29b0f896 AM |
3028 | /* 1 if operand is pending after ','. */ |
3029 | unsigned int expecting_operand = 0; | |
252b5132 | 3030 | |
29b0f896 AM |
3031 | /* Non-zero if operand parens not balanced. */ |
3032 | unsigned int paren_not_balanced; | |
3033 | ||
3034 | while (*l != END_OF_INSN) | |
3035 | { | |
3036 | /* Skip optional white space before operand. */ | |
3037 | if (is_space_char (*l)) | |
3038 | ++l; | |
3039 | if (!is_operand_char (*l) && *l != END_OF_INSN) | |
3040 | { | |
3041 | as_bad (_("invalid character %s before operand %d"), | |
3042 | output_invalid (*l), | |
3043 | i.operands + 1); | |
3044 | return NULL; | |
3045 | } | |
3046 | token_start = l; /* after white space */ | |
3047 | paren_not_balanced = 0; | |
3048 | while (paren_not_balanced || *l != ',') | |
3049 | { | |
3050 | if (*l == END_OF_INSN) | |
3051 | { | |
3052 | if (paren_not_balanced) | |
3053 | { | |
3054 | if (!intel_syntax) | |
3055 | as_bad (_("unbalanced parenthesis in operand %d."), | |
3056 | i.operands + 1); | |
3057 | else | |
3058 | as_bad (_("unbalanced brackets in operand %d."), | |
3059 | i.operands + 1); | |
3060 | return NULL; | |
3061 | } | |
3062 | else | |
3063 | break; /* we are done */ | |
3064 | } | |
3065 | else if (!is_operand_char (*l) && !is_space_char (*l)) | |
3066 | { | |
3067 | as_bad (_("invalid character %s in operand %d"), | |
3068 | output_invalid (*l), | |
3069 | i.operands + 1); | |
3070 | return NULL; | |
3071 | } | |
3072 | if (!intel_syntax) | |
3073 | { | |
3074 | if (*l == '(') | |
3075 | ++paren_not_balanced; | |
3076 | if (*l == ')') | |
3077 | --paren_not_balanced; | |
3078 | } | |
3079 | else | |
3080 | { | |
3081 | if (*l == '[') | |
3082 | ++paren_not_balanced; | |
3083 | if (*l == ']') | |
3084 | --paren_not_balanced; | |
3085 | } | |
3086 | l++; | |
3087 | } | |
3088 | if (l != token_start) | |
3089 | { /* Yes, we've read in another operand. */ | |
3090 | unsigned int operand_ok; | |
3091 | this_operand = i.operands++; | |
7d5e4556 | 3092 | i.types[this_operand].bitfield.unspecified = 1; |
29b0f896 AM |
3093 | if (i.operands > MAX_OPERANDS) |
3094 | { | |
3095 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
3096 | MAX_OPERANDS); | |
3097 | return NULL; | |
3098 | } | |
3099 | /* Now parse operand adding info to 'i' as we go along. */ | |
3100 | END_STRING_AND_SAVE (l); | |
3101 | ||
3102 | if (intel_syntax) | |
3103 | operand_ok = | |
3104 | i386_intel_operand (token_start, | |
3105 | intel_float_operand (mnemonic)); | |
3106 | else | |
a7619375 | 3107 | operand_ok = i386_att_operand (token_start); |
29b0f896 AM |
3108 | |
3109 | RESTORE_END_STRING (l); | |
3110 | if (!operand_ok) | |
3111 | return NULL; | |
3112 | } | |
3113 | else | |
3114 | { | |
3115 | if (expecting_operand) | |
3116 | { | |
3117 | expecting_operand_after_comma: | |
3118 | as_bad (_("expecting operand after ','; got nothing")); | |
3119 | return NULL; | |
3120 | } | |
3121 | if (*l == ',') | |
3122 | { | |
3123 | as_bad (_("expecting operand before ','; got nothing")); | |
3124 | return NULL; | |
3125 | } | |
3126 | } | |
7f3f1ea2 | 3127 | |
29b0f896 AM |
3128 | /* Now *l must be either ',' or END_OF_INSN. */ |
3129 | if (*l == ',') | |
3130 | { | |
3131 | if (*++l == END_OF_INSN) | |
3132 | { | |
3133 | /* Just skip it, if it's \n complain. */ | |
3134 | goto expecting_operand_after_comma; | |
3135 | } | |
3136 | expecting_operand = 1; | |
3137 | } | |
3138 | } | |
3139 | return l; | |
3140 | } | |
7f3f1ea2 | 3141 | |
050dfa73 | 3142 | static void |
4d456e3d | 3143 | swap_2_operands (int xchg1, int xchg2) |
050dfa73 MM |
3144 | { |
3145 | union i386_op temp_op; | |
40fb9820 | 3146 | i386_operand_type temp_type; |
050dfa73 | 3147 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 3148 | |
050dfa73 MM |
3149 | temp_type = i.types[xchg2]; |
3150 | i.types[xchg2] = i.types[xchg1]; | |
3151 | i.types[xchg1] = temp_type; | |
3152 | temp_op = i.op[xchg2]; | |
3153 | i.op[xchg2] = i.op[xchg1]; | |
3154 | i.op[xchg1] = temp_op; | |
3155 | temp_reloc = i.reloc[xchg2]; | |
3156 | i.reloc[xchg2] = i.reloc[xchg1]; | |
3157 | i.reloc[xchg1] = temp_reloc; | |
3158 | } | |
3159 | ||
29b0f896 | 3160 | static void |
e3bb37b5 | 3161 | swap_operands (void) |
29b0f896 | 3162 | { |
b7c61d9a | 3163 | switch (i.operands) |
050dfa73 | 3164 | { |
c0f3af97 | 3165 | case 5: |
b7c61d9a | 3166 | case 4: |
4d456e3d | 3167 | swap_2_operands (1, i.operands - 2); |
b7c61d9a L |
3168 | case 3: |
3169 | case 2: | |
4d456e3d | 3170 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
3171 | break; |
3172 | default: | |
3173 | abort (); | |
29b0f896 | 3174 | } |
29b0f896 AM |
3175 | |
3176 | if (i.mem_operands == 2) | |
3177 | { | |
3178 | const seg_entry *temp_seg; | |
3179 | temp_seg = i.seg[0]; | |
3180 | i.seg[0] = i.seg[1]; | |
3181 | i.seg[1] = temp_seg; | |
3182 | } | |
3183 | } | |
252b5132 | 3184 | |
29b0f896 AM |
3185 | /* Try to ensure constant immediates are represented in the smallest |
3186 | opcode possible. */ | |
3187 | static void | |
e3bb37b5 | 3188 | optimize_imm (void) |
29b0f896 AM |
3189 | { |
3190 | char guess_suffix = 0; | |
3191 | int op; | |
252b5132 | 3192 | |
29b0f896 AM |
3193 | if (i.suffix) |
3194 | guess_suffix = i.suffix; | |
3195 | else if (i.reg_operands) | |
3196 | { | |
3197 | /* Figure out a suffix from the last register operand specified. | |
3198 | We can't do this properly yet, ie. excluding InOutPortReg, | |
3199 | but the following works for instructions with immediates. | |
3200 | In any case, we can't set i.suffix yet. */ | |
3201 | for (op = i.operands; --op >= 0;) | |
40fb9820 L |
3202 | if (i.types[op].bitfield.reg8) |
3203 | { | |
3204 | guess_suffix = BYTE_MNEM_SUFFIX; | |
3205 | break; | |
3206 | } | |
3207 | else if (i.types[op].bitfield.reg16) | |
252b5132 | 3208 | { |
40fb9820 L |
3209 | guess_suffix = WORD_MNEM_SUFFIX; |
3210 | break; | |
3211 | } | |
3212 | else if (i.types[op].bitfield.reg32) | |
3213 | { | |
3214 | guess_suffix = LONG_MNEM_SUFFIX; | |
3215 | break; | |
3216 | } | |
3217 | else if (i.types[op].bitfield.reg64) | |
3218 | { | |
3219 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 3220 | break; |
252b5132 | 3221 | } |
29b0f896 AM |
3222 | } |
3223 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
3224 | guess_suffix = WORD_MNEM_SUFFIX; | |
3225 | ||
3226 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 3227 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
3228 | { |
3229 | switch (i.op[op].imms->X_op) | |
252b5132 | 3230 | { |
29b0f896 AM |
3231 | case O_constant: |
3232 | /* If a suffix is given, this operand may be shortened. */ | |
3233 | switch (guess_suffix) | |
252b5132 | 3234 | { |
29b0f896 | 3235 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
3236 | i.types[op].bitfield.imm32 = 1; |
3237 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
3238 | break; |
3239 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
3240 | i.types[op].bitfield.imm16 = 1; |
3241 | i.types[op].bitfield.imm32 = 1; | |
3242 | i.types[op].bitfield.imm32s = 1; | |
3243 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
3244 | break; |
3245 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
3246 | i.types[op].bitfield.imm8 = 1; |
3247 | i.types[op].bitfield.imm8s = 1; | |
3248 | i.types[op].bitfield.imm16 = 1; | |
3249 | i.types[op].bitfield.imm32 = 1; | |
3250 | i.types[op].bitfield.imm32s = 1; | |
3251 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 3252 | break; |
252b5132 | 3253 | } |
252b5132 | 3254 | |
29b0f896 AM |
3255 | /* If this operand is at most 16 bits, convert it |
3256 | to a signed 16 bit number before trying to see | |
3257 | whether it will fit in an even smaller size. | |
3258 | This allows a 16-bit operand such as $0xffe0 to | |
3259 | be recognised as within Imm8S range. */ | |
40fb9820 | 3260 | if ((i.types[op].bitfield.imm16) |
29b0f896 | 3261 | && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0) |
252b5132 | 3262 | { |
29b0f896 AM |
3263 | i.op[op].imms->X_add_number = |
3264 | (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000); | |
3265 | } | |
40fb9820 | 3266 | if ((i.types[op].bitfield.imm32) |
29b0f896 AM |
3267 | && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1)) |
3268 | == 0)) | |
3269 | { | |
3270 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
3271 | ^ ((offsetT) 1 << 31)) | |
3272 | - ((offsetT) 1 << 31)); | |
3273 | } | |
40fb9820 | 3274 | i.types[op] |
c6fb90c8 L |
3275 | = operand_type_or (i.types[op], |
3276 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 3277 | |
29b0f896 AM |
3278 | /* We must avoid matching of Imm32 templates when 64bit |
3279 | only immediate is available. */ | |
3280 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 3281 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 3282 | break; |
252b5132 | 3283 | |
29b0f896 AM |
3284 | case O_absent: |
3285 | case O_register: | |
3286 | abort (); | |
3287 | ||
3288 | /* Symbols and expressions. */ | |
3289 | default: | |
9cd96992 JB |
3290 | /* Convert symbolic operand to proper sizes for matching, but don't |
3291 | prevent matching a set of insns that only supports sizes other | |
3292 | than those matching the insn suffix. */ | |
3293 | { | |
40fb9820 | 3294 | i386_operand_type mask, allowed; |
9cd96992 JB |
3295 | const template *t; |
3296 | ||
0dfbf9d7 L |
3297 | operand_type_set (&mask, 0); |
3298 | operand_type_set (&allowed, 0); | |
40fb9820 | 3299 | |
4eed87de AM |
3300 | for (t = current_templates->start; |
3301 | t < current_templates->end; | |
3302 | ++t) | |
c6fb90c8 L |
3303 | allowed = operand_type_or (allowed, |
3304 | t->operand_types[op]); | |
9cd96992 JB |
3305 | switch (guess_suffix) |
3306 | { | |
3307 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
3308 | mask.bitfield.imm64 = 1; |
3309 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
3310 | break; |
3311 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 3312 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
3313 | break; |
3314 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 3315 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
3316 | break; |
3317 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 3318 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
3319 | break; |
3320 | default: | |
9cd96992 JB |
3321 | break; |
3322 | } | |
c6fb90c8 | 3323 | allowed = operand_type_and (mask, allowed); |
0dfbf9d7 | 3324 | if (!operand_type_all_zero (&allowed)) |
c6fb90c8 | 3325 | i.types[op] = operand_type_and (i.types[op], mask); |
9cd96992 | 3326 | } |
29b0f896 | 3327 | break; |
252b5132 | 3328 | } |
29b0f896 AM |
3329 | } |
3330 | } | |
47926f60 | 3331 | |
29b0f896 AM |
3332 | /* Try to use the smallest displacement type too. */ |
3333 | static void | |
e3bb37b5 | 3334 | optimize_disp (void) |
29b0f896 AM |
3335 | { |
3336 | int op; | |
3e73aa7c | 3337 | |
29b0f896 | 3338 | for (op = i.operands; --op >= 0;) |
40fb9820 | 3339 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 3340 | { |
b300c311 | 3341 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 3342 | { |
b300c311 | 3343 | offsetT disp = i.op[op].disps->X_add_number; |
29b0f896 | 3344 | |
40fb9820 | 3345 | if (i.types[op].bitfield.disp16 |
b300c311 L |
3346 | && (disp & ~(offsetT) 0xffff) == 0) |
3347 | { | |
3348 | /* If this operand is at most 16 bits, convert | |
3349 | to a signed 16 bit number and don't use 64bit | |
3350 | displacement. */ | |
3351 | disp = (((disp & 0xffff) ^ 0x8000) - 0x8000); | |
40fb9820 | 3352 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 3353 | } |
40fb9820 | 3354 | if (i.types[op].bitfield.disp32 |
b300c311 L |
3355 | && (disp & ~(((offsetT) 2 << 31) - 1)) == 0) |
3356 | { | |
3357 | /* If this operand is at most 32 bits, convert | |
3358 | to a signed 32 bit number and don't use 64bit | |
3359 | displacement. */ | |
3360 | disp &= (((offsetT) 2 << 31) - 1); | |
3361 | disp = (disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
40fb9820 | 3362 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 3363 | } |
40fb9820 | 3364 | if (!disp && i.types[op].bitfield.baseindex) |
b300c311 | 3365 | { |
40fb9820 L |
3366 | i.types[op].bitfield.disp8 = 0; |
3367 | i.types[op].bitfield.disp16 = 0; | |
3368 | i.types[op].bitfield.disp32 = 0; | |
3369 | i.types[op].bitfield.disp32s = 0; | |
3370 | i.types[op].bitfield.disp64 = 0; | |
b300c311 L |
3371 | i.op[op].disps = 0; |
3372 | i.disp_operands--; | |
3373 | } | |
3374 | else if (flag_code == CODE_64BIT) | |
3375 | { | |
3376 | if (fits_in_signed_long (disp)) | |
28a9d8f5 | 3377 | { |
40fb9820 L |
3378 | i.types[op].bitfield.disp64 = 0; |
3379 | i.types[op].bitfield.disp32s = 1; | |
28a9d8f5 | 3380 | } |
b300c311 | 3381 | if (fits_in_unsigned_long (disp)) |
40fb9820 | 3382 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 3383 | } |
40fb9820 L |
3384 | if ((i.types[op].bitfield.disp32 |
3385 | || i.types[op].bitfield.disp32s | |
3386 | || i.types[op].bitfield.disp16) | |
b300c311 | 3387 | && fits_in_signed_byte (disp)) |
40fb9820 | 3388 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 3389 | } |
67a4f2b7 AO |
3390 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
3391 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
3392 | { | |
3393 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
3394 | i.op[op].disps, 0, i.reloc[op]); | |
40fb9820 L |
3395 | i.types[op].bitfield.disp8 = 0; |
3396 | i.types[op].bitfield.disp16 = 0; | |
3397 | i.types[op].bitfield.disp32 = 0; | |
3398 | i.types[op].bitfield.disp32s = 0; | |
3399 | i.types[op].bitfield.disp64 = 0; | |
67a4f2b7 AO |
3400 | } |
3401 | else | |
b300c311 | 3402 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 3403 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 3404 | } |
29b0f896 AM |
3405 | } |
3406 | ||
c0f3af97 L |
3407 | /* Check if operands are valid for the instrucrtion. Update VEX |
3408 | operand types. */ | |
3409 | ||
3410 | static int | |
3411 | VEX_check_operands (const template *t) | |
3412 | { | |
3413 | if (!t->opcode_modifier.vex) | |
3414 | return 0; | |
3415 | ||
3416 | /* Only check VEX_Imm4, which must be the first operand. */ | |
3417 | if (t->operand_types[0].bitfield.vex_imm4) | |
3418 | { | |
3419 | if (i.op[0].imms->X_op != O_constant | |
3420 | || !fits_in_imm4 (i.op[0].imms->X_add_number)) | |
3421 | return 1; | |
3422 | ||
3423 | /* Turn off Imm8 so that update_imm won't complain. */ | |
3424 | i.types[0] = vex_imm4; | |
3425 | } | |
3426 | ||
3427 | return 0; | |
3428 | } | |
3429 | ||
29b0f896 | 3430 | static int |
e3bb37b5 | 3431 | match_template (void) |
29b0f896 AM |
3432 | { |
3433 | /* Points to template once we've found it. */ | |
3434 | const template *t; | |
40fb9820 | 3435 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
c0f3af97 | 3436 | i386_operand_type overlap4; |
29b0f896 | 3437 | unsigned int found_reverse_match; |
40fb9820 L |
3438 | i386_opcode_modifier suffix_check; |
3439 | i386_operand_type operand_types [MAX_OPERANDS]; | |
539e75ad | 3440 | int addr_prefix_disp; |
a5c311ca | 3441 | unsigned int j; |
3629bb00 | 3442 | unsigned int found_cpu_match; |
45664ddb | 3443 | unsigned int check_register; |
29b0f896 | 3444 | |
c0f3af97 L |
3445 | #if MAX_OPERANDS != 5 |
3446 | # error "MAX_OPERANDS must be 5." | |
f48ff2ae L |
3447 | #endif |
3448 | ||
29b0f896 | 3449 | found_reverse_match = 0; |
539e75ad | 3450 | addr_prefix_disp = -1; |
40fb9820 L |
3451 | |
3452 | memset (&suffix_check, 0, sizeof (suffix_check)); | |
3453 | if (i.suffix == BYTE_MNEM_SUFFIX) | |
3454 | suffix_check.no_bsuf = 1; | |
3455 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
3456 | suffix_check.no_wsuf = 1; | |
3457 | else if (i.suffix == SHORT_MNEM_SUFFIX) | |
3458 | suffix_check.no_ssuf = 1; | |
3459 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
3460 | suffix_check.no_lsuf = 1; | |
3461 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3462 | suffix_check.no_qsuf = 1; | |
3463 | else if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
7ce189b3 | 3464 | suffix_check.no_ldsuf = 1; |
29b0f896 | 3465 | |
45aa61fe | 3466 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 3467 | { |
539e75ad L |
3468 | addr_prefix_disp = -1; |
3469 | ||
29b0f896 AM |
3470 | /* Must have right number of operands. */ |
3471 | if (i.operands != t->operands) | |
3472 | continue; | |
3473 | ||
50aecf8c | 3474 | /* Check processor support. */ |
c0f3af97 L |
3475 | found_cpu_match = (cpu_flags_match (t) |
3476 | == CPU_FLAGS_PERFECT_MATCH); | |
50aecf8c L |
3477 | if (!found_cpu_match) |
3478 | continue; | |
3479 | ||
e1d4d893 L |
3480 | /* Check old gcc support. */ |
3481 | if (!old_gcc && t->opcode_modifier.oldgcc) | |
3482 | continue; | |
3483 | ||
3484 | /* Check AT&T mnemonic. */ | |
3485 | if (intel_mnemonic && t->opcode_modifier.attmnemonic) | |
1efbbeb4 L |
3486 | continue; |
3487 | ||
5c07affc L |
3488 | /* Check AT&T syntax Intel syntax. */ |
3489 | if ((intel_syntax && t->opcode_modifier.attsyntax) | |
3490 | || (!intel_syntax && t->opcode_modifier.intelsyntax)) | |
1efbbeb4 L |
3491 | continue; |
3492 | ||
20592a94 | 3493 | /* Check the suffix, except for some instructions in intel mode. */ |
567e4e96 L |
3494 | if ((!intel_syntax || !t->opcode_modifier.ignoresize) |
3495 | && ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf) | |
3496 | || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf) | |
3497 | || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf) | |
3498 | || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf) | |
3499 | || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf) | |
3500 | || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf))) | |
29b0f896 AM |
3501 | continue; |
3502 | ||
5c07affc | 3503 | if (!operand_size_match (t)) |
7d5e4556 | 3504 | continue; |
539e75ad | 3505 | |
5c07affc L |
3506 | for (j = 0; j < MAX_OPERANDS; j++) |
3507 | operand_types[j] = t->operand_types[j]; | |
3508 | ||
45aa61fe AM |
3509 | /* In general, don't allow 64-bit operands in 32-bit mode. */ |
3510 | if (i.suffix == QWORD_MNEM_SUFFIX | |
3511 | && flag_code != CODE_64BIT | |
3512 | && (intel_syntax | |
40fb9820 | 3513 | ? (!t->opcode_modifier.ignoresize |
45aa61fe AM |
3514 | && !intel_float_operand (t->name)) |
3515 | : intel_float_operand (t->name) != 2) | |
40fb9820 | 3516 | && ((!operand_types[0].bitfield.regmmx |
c0f3af97 L |
3517 | && !operand_types[0].bitfield.regxmm |
3518 | && !operand_types[0].bitfield.regymm) | |
40fb9820 | 3519 | || (!operand_types[t->operands > 1].bitfield.regmmx |
c0f3af97 L |
3520 | && !!operand_types[t->operands > 1].bitfield.regxmm |
3521 | && !!operand_types[t->operands > 1].bitfield.regymm)) | |
45aa61fe AM |
3522 | && (t->base_opcode != 0x0fc7 |
3523 | || t->extension_opcode != 1 /* cmpxchg8b */)) | |
3524 | continue; | |
3525 | ||
192dc9c6 JB |
3526 | /* In general, don't allow 32-bit operands on pre-386. */ |
3527 | else if (i.suffix == LONG_MNEM_SUFFIX | |
3528 | && !cpu_arch_flags.bitfield.cpui386 | |
3529 | && (intel_syntax | |
3530 | ? (!t->opcode_modifier.ignoresize | |
3531 | && !intel_float_operand (t->name)) | |
3532 | : intel_float_operand (t->name) != 2) | |
3533 | && ((!operand_types[0].bitfield.regmmx | |
3534 | && !operand_types[0].bitfield.regxmm) | |
3535 | || (!operand_types[t->operands > 1].bitfield.regmmx | |
3536 | && !!operand_types[t->operands > 1].bitfield.regxmm))) | |
3537 | continue; | |
3538 | ||
29b0f896 | 3539 | /* Do not verify operands when there are none. */ |
50aecf8c | 3540 | else |
29b0f896 | 3541 | { |
c6fb90c8 | 3542 | if (!t->operands) |
2dbab7d5 L |
3543 | /* We've found a match; break out of loop. */ |
3544 | break; | |
29b0f896 | 3545 | } |
252b5132 | 3546 | |
539e75ad L |
3547 | /* Address size prefix will turn Disp64/Disp32/Disp16 operand |
3548 | into Disp32/Disp16/Disp32 operand. */ | |
3549 | if (i.prefix[ADDR_PREFIX] != 0) | |
3550 | { | |
40fb9820 | 3551 | /* There should be only one Disp operand. */ |
539e75ad L |
3552 | switch (flag_code) |
3553 | { | |
3554 | case CODE_16BIT: | |
40fb9820 L |
3555 | for (j = 0; j < MAX_OPERANDS; j++) |
3556 | { | |
3557 | if (operand_types[j].bitfield.disp16) | |
3558 | { | |
3559 | addr_prefix_disp = j; | |
3560 | operand_types[j].bitfield.disp32 = 1; | |
3561 | operand_types[j].bitfield.disp16 = 0; | |
3562 | break; | |
3563 | } | |
3564 | } | |
539e75ad L |
3565 | break; |
3566 | case CODE_32BIT: | |
40fb9820 L |
3567 | for (j = 0; j < MAX_OPERANDS; j++) |
3568 | { | |
3569 | if (operand_types[j].bitfield.disp32) | |
3570 | { | |
3571 | addr_prefix_disp = j; | |
3572 | operand_types[j].bitfield.disp32 = 0; | |
3573 | operand_types[j].bitfield.disp16 = 1; | |
3574 | break; | |
3575 | } | |
3576 | } | |
539e75ad L |
3577 | break; |
3578 | case CODE_64BIT: | |
40fb9820 L |
3579 | for (j = 0; j < MAX_OPERANDS; j++) |
3580 | { | |
3581 | if (operand_types[j].bitfield.disp64) | |
3582 | { | |
3583 | addr_prefix_disp = j; | |
3584 | operand_types[j].bitfield.disp64 = 0; | |
3585 | operand_types[j].bitfield.disp32 = 1; | |
3586 | break; | |
3587 | } | |
3588 | } | |
539e75ad L |
3589 | break; |
3590 | } | |
539e75ad L |
3591 | } |
3592 | ||
45664ddb L |
3593 | /* We check register size only if size of operands can be |
3594 | encoded the canonical way. */ | |
3595 | check_register = t->opcode_modifier.w; | |
c6fb90c8 | 3596 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
3597 | switch (t->operands) |
3598 | { | |
3599 | case 1: | |
40fb9820 | 3600 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
3601 | continue; |
3602 | break; | |
3603 | case 2: | |
8b38ad71 L |
3604 | /* xchg %eax, %eax is a special case. It is an aliase for nop |
3605 | only in 32bit mode and we can use opcode 0x90. In 64bit | |
3606 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
3607 | zero-extend %eax to %rax. */ | |
3608 | if (flag_code == CODE_64BIT | |
3609 | && t->base_opcode == 0x90 | |
0dfbf9d7 L |
3610 | && operand_type_equal (&i.types [0], &acc32) |
3611 | && operand_type_equal (&i.types [1], &acc32)) | |
8b38ad71 | 3612 | continue; |
29b0f896 | 3613 | case 3: |
f48ff2ae | 3614 | case 4: |
c0f3af97 | 3615 | case 5: |
c6fb90c8 | 3616 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
3617 | if (!operand_type_match (overlap0, i.types[0]) |
3618 | || !operand_type_match (overlap1, i.types[1]) | |
45664ddb L |
3619 | || (check_register |
3620 | && !operand_type_register_match (overlap0, i.types[0], | |
40fb9820 L |
3621 | operand_types[0], |
3622 | overlap1, i.types[1], | |
3623 | operand_types[1]))) | |
29b0f896 AM |
3624 | { |
3625 | /* Check if other direction is valid ... */ | |
40fb9820 | 3626 | if (!t->opcode_modifier.d && !t->opcode_modifier.floatd) |
29b0f896 AM |
3627 | continue; |
3628 | ||
3629 | /* Try reversing direction of operands. */ | |
c6fb90c8 L |
3630 | overlap0 = operand_type_and (i.types[0], operand_types[1]); |
3631 | overlap1 = operand_type_and (i.types[1], operand_types[0]); | |
40fb9820 L |
3632 | if (!operand_type_match (overlap0, i.types[0]) |
3633 | || !operand_type_match (overlap1, i.types[1]) | |
45664ddb L |
3634 | || (check_register |
3635 | && !operand_type_register_match (overlap0, | |
3636 | i.types[0], | |
3637 | operand_types[1], | |
3638 | overlap1, | |
3639 | i.types[1], | |
3640 | operand_types[0]))) | |
29b0f896 AM |
3641 | { |
3642 | /* Does not match either direction. */ | |
3643 | continue; | |
3644 | } | |
3645 | /* found_reverse_match holds which of D or FloatDR | |
3646 | we've found. */ | |
40fb9820 | 3647 | if (t->opcode_modifier.d) |
8a2ed489 | 3648 | found_reverse_match = Opcode_D; |
40fb9820 | 3649 | else if (t->opcode_modifier.floatd) |
8a2ed489 L |
3650 | found_reverse_match = Opcode_FloatD; |
3651 | else | |
3652 | found_reverse_match = 0; | |
40fb9820 | 3653 | if (t->opcode_modifier.floatr) |
8a2ed489 | 3654 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 3655 | } |
f48ff2ae | 3656 | else |
29b0f896 | 3657 | { |
f48ff2ae | 3658 | /* Found a forward 2 operand match here. */ |
d1cbb4db L |
3659 | switch (t->operands) |
3660 | { | |
c0f3af97 L |
3661 | case 5: |
3662 | overlap4 = operand_type_and (i.types[4], | |
3663 | operand_types[4]); | |
d1cbb4db | 3664 | case 4: |
c6fb90c8 L |
3665 | overlap3 = operand_type_and (i.types[3], |
3666 | operand_types[3]); | |
d1cbb4db | 3667 | case 3: |
c6fb90c8 L |
3668 | overlap2 = operand_type_and (i.types[2], |
3669 | operand_types[2]); | |
d1cbb4db L |
3670 | break; |
3671 | } | |
29b0f896 | 3672 | |
f48ff2ae L |
3673 | switch (t->operands) |
3674 | { | |
c0f3af97 L |
3675 | case 5: |
3676 | if (!operand_type_match (overlap4, i.types[4]) | |
3677 | || !operand_type_register_match (overlap3, | |
3678 | i.types[3], | |
3679 | operand_types[3], | |
3680 | overlap4, | |
3681 | i.types[4], | |
3682 | operand_types[4])) | |
3683 | continue; | |
f48ff2ae | 3684 | case 4: |
40fb9820 | 3685 | if (!operand_type_match (overlap3, i.types[3]) |
45664ddb L |
3686 | || (check_register |
3687 | && !operand_type_register_match (overlap2, | |
3688 | i.types[2], | |
3689 | operand_types[2], | |
3690 | overlap3, | |
3691 | i.types[3], | |
3692 | operand_types[3]))) | |
f48ff2ae L |
3693 | continue; |
3694 | case 3: | |
3695 | /* Here we make use of the fact that there are no | |
3696 | reverse match 3 operand instructions, and all 3 | |
3697 | operand instructions only need to be checked for | |
3698 | register consistency between operands 2 and 3. */ | |
40fb9820 | 3699 | if (!operand_type_match (overlap2, i.types[2]) |
45664ddb L |
3700 | || (check_register |
3701 | && !operand_type_register_match (overlap1, | |
3702 | i.types[1], | |
3703 | operand_types[1], | |
3704 | overlap2, | |
3705 | i.types[2], | |
3706 | operand_types[2]))) | |
f48ff2ae L |
3707 | continue; |
3708 | break; | |
3709 | } | |
29b0f896 | 3710 | } |
f48ff2ae | 3711 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
3712 | slip through to break. */ |
3713 | } | |
3629bb00 | 3714 | if (!found_cpu_match) |
29b0f896 AM |
3715 | { |
3716 | found_reverse_match = 0; | |
3717 | continue; | |
3718 | } | |
c0f3af97 L |
3719 | |
3720 | /* Check if VEX operands are valid. */ | |
3721 | if (VEX_check_operands (t)) | |
3722 | continue; | |
3723 | ||
29b0f896 AM |
3724 | /* We've found a match; break out of loop. */ |
3725 | break; | |
3726 | } | |
3727 | ||
3728 | if (t == current_templates->end) | |
3729 | { | |
3730 | /* We found no match. */ | |
3731 | as_bad (_("suffix or operands invalid for `%s'"), | |
3732 | current_templates->start->name); | |
3733 | return 0; | |
3734 | } | |
252b5132 | 3735 | |
29b0f896 AM |
3736 | if (!quiet_warnings) |
3737 | { | |
3738 | if (!intel_syntax | |
40fb9820 L |
3739 | && (i.types[0].bitfield.jumpabsolute |
3740 | != operand_types[0].bitfield.jumpabsolute)) | |
29b0f896 AM |
3741 | { |
3742 | as_warn (_("indirect %s without `*'"), t->name); | |
3743 | } | |
3744 | ||
40fb9820 L |
3745 | if (t->opcode_modifier.isprefix |
3746 | && t->opcode_modifier.ignoresize) | |
29b0f896 AM |
3747 | { |
3748 | /* Warn them that a data or address size prefix doesn't | |
3749 | affect assembly of the next line of code. */ | |
3750 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
3751 | } | |
3752 | } | |
3753 | ||
3754 | /* Copy the template we found. */ | |
3755 | i.tm = *t; | |
539e75ad L |
3756 | |
3757 | if (addr_prefix_disp != -1) | |
3758 | i.tm.operand_types[addr_prefix_disp] | |
3759 | = operand_types[addr_prefix_disp]; | |
3760 | ||
29b0f896 AM |
3761 | if (found_reverse_match) |
3762 | { | |
3763 | /* If we found a reverse match we must alter the opcode | |
3764 | direction bit. found_reverse_match holds bits to change | |
3765 | (different for int & float insns). */ | |
3766 | ||
3767 | i.tm.base_opcode ^= found_reverse_match; | |
3768 | ||
539e75ad L |
3769 | i.tm.operand_types[0] = operand_types[1]; |
3770 | i.tm.operand_types[1] = operand_types[0]; | |
29b0f896 AM |
3771 | } |
3772 | ||
3773 | return 1; | |
3774 | } | |
3775 | ||
3776 | static int | |
e3bb37b5 | 3777 | check_string (void) |
29b0f896 | 3778 | { |
40fb9820 L |
3779 | int mem_op = operand_type_check (i.types[0], anymem) ? 0 : 1; |
3780 | if (i.tm.operand_types[mem_op].bitfield.esseg) | |
29b0f896 AM |
3781 | { |
3782 | if (i.seg[0] != NULL && i.seg[0] != &es) | |
3783 | { | |
3784 | as_bad (_("`%s' operand %d must use `%%es' segment"), | |
3785 | i.tm.name, | |
3786 | mem_op + 1); | |
3787 | return 0; | |
3788 | } | |
3789 | /* There's only ever one segment override allowed per instruction. | |
3790 | This instruction possibly has a legal segment override on the | |
3791 | second operand, so copy the segment to where non-string | |
3792 | instructions store it, allowing common code. */ | |
3793 | i.seg[0] = i.seg[1]; | |
3794 | } | |
40fb9820 | 3795 | else if (i.tm.operand_types[mem_op + 1].bitfield.esseg) |
29b0f896 AM |
3796 | { |
3797 | if (i.seg[1] != NULL && i.seg[1] != &es) | |
3798 | { | |
3799 | as_bad (_("`%s' operand %d must use `%%es' segment"), | |
3800 | i.tm.name, | |
3801 | mem_op + 2); | |
3802 | return 0; | |
3803 | } | |
3804 | } | |
3805 | return 1; | |
3806 | } | |
3807 | ||
3808 | static int | |
543613e9 | 3809 | process_suffix (void) |
29b0f896 AM |
3810 | { |
3811 | /* If matched instruction specifies an explicit instruction mnemonic | |
3812 | suffix, use it. */ | |
40fb9820 L |
3813 | if (i.tm.opcode_modifier.size16) |
3814 | i.suffix = WORD_MNEM_SUFFIX; | |
3815 | else if (i.tm.opcode_modifier.size32) | |
3816 | i.suffix = LONG_MNEM_SUFFIX; | |
3817 | else if (i.tm.opcode_modifier.size64) | |
3818 | i.suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 AM |
3819 | else if (i.reg_operands) |
3820 | { | |
3821 | /* If there's no instruction mnemonic suffix we try to invent one | |
3822 | based on register operands. */ | |
3823 | if (!i.suffix) | |
3824 | { | |
3825 | /* We take i.suffix from the last register operand specified, | |
3826 | Destination register type is more significant than source | |
381d071f L |
3827 | register type. crc32 in SSE4.2 prefers source register |
3828 | type. */ | |
3829 | if (i.tm.base_opcode == 0xf20f38f1) | |
3830 | { | |
40fb9820 L |
3831 | if (i.types[0].bitfield.reg16) |
3832 | i.suffix = WORD_MNEM_SUFFIX; | |
3833 | else if (i.types[0].bitfield.reg32) | |
3834 | i.suffix = LONG_MNEM_SUFFIX; | |
3835 | else if (i.types[0].bitfield.reg64) | |
3836 | i.suffix = QWORD_MNEM_SUFFIX; | |
381d071f | 3837 | } |
9344ff29 | 3838 | else if (i.tm.base_opcode == 0xf20f38f0) |
20592a94 | 3839 | { |
40fb9820 | 3840 | if (i.types[0].bitfield.reg8) |
20592a94 L |
3841 | i.suffix = BYTE_MNEM_SUFFIX; |
3842 | } | |
381d071f L |
3843 | |
3844 | if (!i.suffix) | |
3845 | { | |
3846 | int op; | |
3847 | ||
20592a94 L |
3848 | if (i.tm.base_opcode == 0xf20f38f1 |
3849 | || i.tm.base_opcode == 0xf20f38f0) | |
3850 | { | |
3851 | /* We have to know the operand size for crc32. */ | |
3852 | as_bad (_("ambiguous memory operand size for `%s`"), | |
3853 | i.tm.name); | |
3854 | return 0; | |
3855 | } | |
3856 | ||
381d071f | 3857 | for (op = i.operands; --op >= 0;) |
40fb9820 | 3858 | if (!i.tm.operand_types[op].bitfield.inoutportreg) |
381d071f | 3859 | { |
40fb9820 L |
3860 | if (i.types[op].bitfield.reg8) |
3861 | { | |
3862 | i.suffix = BYTE_MNEM_SUFFIX; | |
3863 | break; | |
3864 | } | |
3865 | else if (i.types[op].bitfield.reg16) | |
3866 | { | |
3867 | i.suffix = WORD_MNEM_SUFFIX; | |
3868 | break; | |
3869 | } | |
3870 | else if (i.types[op].bitfield.reg32) | |
3871 | { | |
3872 | i.suffix = LONG_MNEM_SUFFIX; | |
3873 | break; | |
3874 | } | |
3875 | else if (i.types[op].bitfield.reg64) | |
3876 | { | |
3877 | i.suffix = QWORD_MNEM_SUFFIX; | |
3878 | break; | |
3879 | } | |
381d071f L |
3880 | } |
3881 | } | |
29b0f896 AM |
3882 | } |
3883 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
3884 | { | |
3885 | if (!check_byte_reg ()) | |
3886 | return 0; | |
3887 | } | |
3888 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
3889 | { | |
3890 | if (!check_long_reg ()) | |
3891 | return 0; | |
3892 | } | |
3893 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3894 | { | |
955e1e6a L |
3895 | if (intel_syntax |
3896 | && i.tm.opcode_modifier.ignoresize | |
3897 | && i.tm.opcode_modifier.no_qsuf) | |
3898 | i.suffix = 0; | |
3899 | else if (!check_qword_reg ()) | |
29b0f896 AM |
3900 | return 0; |
3901 | } | |
3902 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
3903 | { | |
3904 | if (!check_word_reg ()) | |
3905 | return 0; | |
3906 | } | |
c0f3af97 L |
3907 | else if (i.suffix == XMMWORD_MNEM_SUFFIX |
3908 | || i.suffix == YMMWORD_MNEM_SUFFIX) | |
582d5edd | 3909 | { |
c0f3af97 | 3910 | /* Skip if the instruction has x/y suffix. match_template |
582d5edd L |
3911 | should check if it is a valid suffix. */ |
3912 | } | |
40fb9820 | 3913 | else if (intel_syntax && i.tm.opcode_modifier.ignoresize) |
29b0f896 AM |
3914 | /* Do nothing if the instruction is going to ignore the prefix. */ |
3915 | ; | |
3916 | else | |
3917 | abort (); | |
3918 | } | |
40fb9820 | 3919 | else if (i.tm.opcode_modifier.defaultsize |
9306ca4a JB |
3920 | && !i.suffix |
3921 | /* exclude fldenv/frstor/fsave/fstenv */ | |
40fb9820 | 3922 | && i.tm.opcode_modifier.no_ssuf) |
29b0f896 AM |
3923 | { |
3924 | i.suffix = stackop_size; | |
3925 | } | |
9306ca4a JB |
3926 | else if (intel_syntax |
3927 | && !i.suffix | |
40fb9820 L |
3928 | && (i.tm.operand_types[0].bitfield.jumpabsolute |
3929 | || i.tm.opcode_modifier.jumpbyte | |
3930 | || i.tm.opcode_modifier.jumpintersegment | |
64e74474 AM |
3931 | || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */ |
3932 | && i.tm.extension_opcode <= 3))) | |
9306ca4a JB |
3933 | { |
3934 | switch (flag_code) | |
3935 | { | |
3936 | case CODE_64BIT: | |
40fb9820 | 3937 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a JB |
3938 | { |
3939 | i.suffix = QWORD_MNEM_SUFFIX; | |
3940 | break; | |
3941 | } | |
3942 | case CODE_32BIT: | |
40fb9820 | 3943 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
3944 | i.suffix = LONG_MNEM_SUFFIX; |
3945 | break; | |
3946 | case CODE_16BIT: | |
40fb9820 | 3947 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
3948 | i.suffix = WORD_MNEM_SUFFIX; |
3949 | break; | |
3950 | } | |
3951 | } | |
252b5132 | 3952 | |
9306ca4a | 3953 | if (!i.suffix) |
29b0f896 | 3954 | { |
9306ca4a JB |
3955 | if (!intel_syntax) |
3956 | { | |
40fb9820 | 3957 | if (i.tm.opcode_modifier.w) |
9306ca4a | 3958 | { |
4eed87de AM |
3959 | as_bad (_("no instruction mnemonic suffix given and " |
3960 | "no register operands; can't size instruction")); | |
9306ca4a JB |
3961 | return 0; |
3962 | } | |
3963 | } | |
3964 | else | |
3965 | { | |
40fb9820 L |
3966 | unsigned int suffixes; |
3967 | ||
3968 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
3969 | if (!i.tm.opcode_modifier.no_wsuf) | |
3970 | suffixes |= 1 << 1; | |
3971 | if (!i.tm.opcode_modifier.no_lsuf) | |
3972 | suffixes |= 1 << 2; | |
fc4adea1 | 3973 | if (!i.tm.opcode_modifier.no_ldsuf) |
40fb9820 L |
3974 | suffixes |= 1 << 3; |
3975 | if (!i.tm.opcode_modifier.no_ssuf) | |
3976 | suffixes |= 1 << 4; | |
3977 | if (!i.tm.opcode_modifier.no_qsuf) | |
3978 | suffixes |= 1 << 5; | |
3979 | ||
3980 | /* There are more than suffix matches. */ | |
3981 | if (i.tm.opcode_modifier.w | |
9306ca4a | 3982 | || ((suffixes & (suffixes - 1)) |
40fb9820 L |
3983 | && !i.tm.opcode_modifier.defaultsize |
3984 | && !i.tm.opcode_modifier.ignoresize)) | |
9306ca4a JB |
3985 | { |
3986 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); | |
3987 | return 0; | |
3988 | } | |
3989 | } | |
29b0f896 | 3990 | } |
252b5132 | 3991 | |
9306ca4a JB |
3992 | /* Change the opcode based on the operand size given by i.suffix; |
3993 | We don't need to change things for byte insns. */ | |
3994 | ||
582d5edd L |
3995 | if (i.suffix |
3996 | && i.suffix != BYTE_MNEM_SUFFIX | |
c0f3af97 L |
3997 | && i.suffix != XMMWORD_MNEM_SUFFIX |
3998 | && i.suffix != YMMWORD_MNEM_SUFFIX) | |
29b0f896 AM |
3999 | { |
4000 | /* It's not a byte, select word/dword operation. */ | |
40fb9820 | 4001 | if (i.tm.opcode_modifier.w) |
29b0f896 | 4002 | { |
40fb9820 | 4003 | if (i.tm.opcode_modifier.shortform) |
29b0f896 AM |
4004 | i.tm.base_opcode |= 8; |
4005 | else | |
4006 | i.tm.base_opcode |= 1; | |
4007 | } | |
0f3f3d8b | 4008 | |
29b0f896 AM |
4009 | /* Now select between word & dword operations via the operand |
4010 | size prefix, except for instructions that will ignore this | |
4011 | prefix anyway. */ | |
ca61edf2 | 4012 | if (i.tm.opcode_modifier.addrprefixop0) |
cb712a9e | 4013 | { |
ca61edf2 L |
4014 | /* The address size override prefix changes the size of the |
4015 | first operand. */ | |
40fb9820 L |
4016 | if ((flag_code == CODE_32BIT |
4017 | && i.op->regs[0].reg_type.bitfield.reg16) | |
4018 | || (flag_code != CODE_32BIT | |
4019 | && i.op->regs[0].reg_type.bitfield.reg32)) | |
cb712a9e L |
4020 | if (!add_prefix (ADDR_PREFIX_OPCODE)) |
4021 | return 0; | |
4022 | } | |
4023 | else if (i.suffix != QWORD_MNEM_SUFFIX | |
4024 | && i.suffix != LONG_DOUBLE_MNEM_SUFFIX | |
40fb9820 L |
4025 | && !i.tm.opcode_modifier.ignoresize |
4026 | && !i.tm.opcode_modifier.floatmf | |
cb712a9e L |
4027 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) |
4028 | || (flag_code == CODE_64BIT | |
40fb9820 | 4029 | && i.tm.opcode_modifier.jumpbyte))) |
24eab124 AM |
4030 | { |
4031 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 4032 | |
40fb9820 | 4033 | if (i.tm.opcode_modifier.jumpbyte) /* jcxz, loop */ |
29b0f896 | 4034 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 4035 | |
29b0f896 AM |
4036 | if (!add_prefix (prefix)) |
4037 | return 0; | |
24eab124 | 4038 | } |
252b5132 | 4039 | |
29b0f896 AM |
4040 | /* Set mode64 for an operand. */ |
4041 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 4042 | && flag_code == CODE_64BIT |
40fb9820 | 4043 | && !i.tm.opcode_modifier.norex64) |
46e883c5 L |
4044 | { |
4045 | /* Special case for xchg %rax,%rax. It is NOP and doesn't | |
d9a5e5e5 L |
4046 | need rex64. cmpxchg8b is also a special case. */ |
4047 | if (! (i.operands == 2 | |
4048 | && i.tm.base_opcode == 0x90 | |
4049 | && i.tm.extension_opcode == None | |
0dfbf9d7 L |
4050 | && operand_type_equal (&i.types [0], &acc64) |
4051 | && operand_type_equal (&i.types [1], &acc64)) | |
d9a5e5e5 L |
4052 | && ! (i.operands == 1 |
4053 | && i.tm.base_opcode == 0xfc7 | |
4054 | && i.tm.extension_opcode == 1 | |
40fb9820 L |
4055 | && !operand_type_check (i.types [0], reg) |
4056 | && operand_type_check (i.types [0], anymem))) | |
f6bee062 | 4057 | i.rex |= REX_W; |
46e883c5 | 4058 | } |
3e73aa7c | 4059 | |
29b0f896 AM |
4060 | /* Size floating point instruction. */ |
4061 | if (i.suffix == LONG_MNEM_SUFFIX) | |
40fb9820 | 4062 | if (i.tm.opcode_modifier.floatmf) |
543613e9 | 4063 | i.tm.base_opcode ^= 4; |
29b0f896 | 4064 | } |
7ecd2f8b | 4065 | |
29b0f896 AM |
4066 | return 1; |
4067 | } | |
3e73aa7c | 4068 | |
29b0f896 | 4069 | static int |
543613e9 | 4070 | check_byte_reg (void) |
29b0f896 AM |
4071 | { |
4072 | int op; | |
543613e9 | 4073 | |
29b0f896 AM |
4074 | for (op = i.operands; --op >= 0;) |
4075 | { | |
4076 | /* If this is an eight bit register, it's OK. If it's the 16 or | |
4077 | 32 bit version of an eight bit register, we will just use the | |
4078 | low portion, and that's OK too. */ | |
40fb9820 | 4079 | if (i.types[op].bitfield.reg8) |
29b0f896 AM |
4080 | continue; |
4081 | ||
ca61edf2 L |
4082 | /* Don't generate this warning if not needed. */ |
4083 | if (intel_syntax && i.tm.opcode_modifier.byteokintel) | |
29b0f896 AM |
4084 | continue; |
4085 | ||
9344ff29 L |
4086 | /* crc32 doesn't generate this warning. */ |
4087 | if (i.tm.base_opcode == 0xf20f38f0) | |
4088 | continue; | |
4089 | ||
40fb9820 L |
4090 | if ((i.types[op].bitfield.reg16 |
4091 | || i.types[op].bitfield.reg32 | |
4092 | || i.types[op].bitfield.reg64) | |
4093 | && i.op[op].regs->reg_num < 4) | |
29b0f896 AM |
4094 | { |
4095 | /* Prohibit these changes in the 64bit mode, since the | |
4096 | lowering is more complicated. */ | |
4097 | if (flag_code == CODE_64BIT | |
40fb9820 | 4098 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
29b0f896 | 4099 | { |
2ca3ace5 L |
4100 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4101 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4102 | i.suffix); |
4103 | return 0; | |
4104 | } | |
4105 | #if REGISTER_WARNINGS | |
4106 | if (!quiet_warnings | |
40fb9820 | 4107 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
a540244d L |
4108 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4109 | register_prefix, | |
40fb9820 | 4110 | (i.op[op].regs + (i.types[op].bitfield.reg16 |
29b0f896 AM |
4111 | ? REGNAM_AL - REGNAM_AX |
4112 | : REGNAM_AL - REGNAM_EAX))->reg_name, | |
a540244d | 4113 | register_prefix, |
29b0f896 AM |
4114 | i.op[op].regs->reg_name, |
4115 | i.suffix); | |
4116 | #endif | |
4117 | continue; | |
4118 | } | |
4119 | /* Any other register is bad. */ | |
40fb9820 L |
4120 | if (i.types[op].bitfield.reg16 |
4121 | || i.types[op].bitfield.reg32 | |
4122 | || i.types[op].bitfield.reg64 | |
4123 | || i.types[op].bitfield.regmmx | |
4124 | || i.types[op].bitfield.regxmm | |
c0f3af97 | 4125 | || i.types[op].bitfield.regymm |
40fb9820 L |
4126 | || i.types[op].bitfield.sreg2 |
4127 | || i.types[op].bitfield.sreg3 | |
4128 | || i.types[op].bitfield.control | |
4129 | || i.types[op].bitfield.debug | |
4130 | || i.types[op].bitfield.test | |
4131 | || i.types[op].bitfield.floatreg | |
4132 | || i.types[op].bitfield.floatacc) | |
29b0f896 | 4133 | { |
a540244d L |
4134 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4135 | register_prefix, | |
29b0f896 AM |
4136 | i.op[op].regs->reg_name, |
4137 | i.tm.name, | |
4138 | i.suffix); | |
4139 | return 0; | |
4140 | } | |
4141 | } | |
4142 | return 1; | |
4143 | } | |
4144 | ||
4145 | static int | |
e3bb37b5 | 4146 | check_long_reg (void) |
29b0f896 AM |
4147 | { |
4148 | int op; | |
4149 | ||
4150 | for (op = i.operands; --op >= 0;) | |
4151 | /* Reject eight bit registers, except where the template requires | |
4152 | them. (eg. movzb) */ | |
40fb9820 L |
4153 | if (i.types[op].bitfield.reg8 |
4154 | && (i.tm.operand_types[op].bitfield.reg16 | |
4155 | || i.tm.operand_types[op].bitfield.reg32 | |
4156 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4157 | { |
a540244d L |
4158 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4159 | register_prefix, | |
29b0f896 AM |
4160 | i.op[op].regs->reg_name, |
4161 | i.tm.name, | |
4162 | i.suffix); | |
4163 | return 0; | |
4164 | } | |
4165 | /* Warn if the e prefix on a general reg is missing. */ | |
4166 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
4167 | && i.types[op].bitfield.reg16 |
4168 | && (i.tm.operand_types[op].bitfield.reg32 | |
4169 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
4170 | { |
4171 | /* Prohibit these changes in the 64bit mode, since the | |
4172 | lowering is more complicated. */ | |
4173 | if (flag_code == CODE_64BIT) | |
252b5132 | 4174 | { |
2ca3ace5 L |
4175 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4176 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4177 | i.suffix); |
4178 | return 0; | |
252b5132 | 4179 | } |
29b0f896 AM |
4180 | #if REGISTER_WARNINGS |
4181 | else | |
a540244d L |
4182 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4183 | register_prefix, | |
29b0f896 | 4184 | (i.op[op].regs + REGNAM_EAX - REGNAM_AX)->reg_name, |
a540244d | 4185 | register_prefix, |
29b0f896 AM |
4186 | i.op[op].regs->reg_name, |
4187 | i.suffix); | |
4188 | #endif | |
252b5132 | 4189 | } |
29b0f896 | 4190 | /* Warn if the r prefix on a general reg is missing. */ |
40fb9820 L |
4191 | else if (i.types[op].bitfield.reg64 |
4192 | && (i.tm.operand_types[op].bitfield.reg32 | |
4193 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 4194 | { |
34828aad | 4195 | if (intel_syntax |
ca61edf2 | 4196 | && i.tm.opcode_modifier.toqword |
40fb9820 | 4197 | && !i.types[0].bitfield.regxmm) |
34828aad | 4198 | { |
ca61edf2 | 4199 | /* Convert to QWORD. We want REX byte. */ |
34828aad L |
4200 | i.suffix = QWORD_MNEM_SUFFIX; |
4201 | } | |
4202 | else | |
4203 | { | |
4204 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
4205 | register_prefix, i.op[op].regs->reg_name, | |
4206 | i.suffix); | |
4207 | return 0; | |
4208 | } | |
29b0f896 AM |
4209 | } |
4210 | return 1; | |
4211 | } | |
252b5132 | 4212 | |
29b0f896 | 4213 | static int |
e3bb37b5 | 4214 | check_qword_reg (void) |
29b0f896 AM |
4215 | { |
4216 | int op; | |
252b5132 | 4217 | |
29b0f896 AM |
4218 | for (op = i.operands; --op >= 0; ) |
4219 | /* Reject eight bit registers, except where the template requires | |
4220 | them. (eg. movzb) */ | |
40fb9820 L |
4221 | if (i.types[op].bitfield.reg8 |
4222 | && (i.tm.operand_types[op].bitfield.reg16 | |
4223 | || i.tm.operand_types[op].bitfield.reg32 | |
4224 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4225 | { |
a540244d L |
4226 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4227 | register_prefix, | |
29b0f896 AM |
4228 | i.op[op].regs->reg_name, |
4229 | i.tm.name, | |
4230 | i.suffix); | |
4231 | return 0; | |
4232 | } | |
4233 | /* Warn if the e prefix on a general reg is missing. */ | |
40fb9820 L |
4234 | else if ((i.types[op].bitfield.reg16 |
4235 | || i.types[op].bitfield.reg32) | |
4236 | && (i.tm.operand_types[op].bitfield.reg32 | |
4237 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
4238 | { |
4239 | /* Prohibit these changes in the 64bit mode, since the | |
4240 | lowering is more complicated. */ | |
34828aad | 4241 | if (intel_syntax |
ca61edf2 | 4242 | && i.tm.opcode_modifier.todword |
40fb9820 | 4243 | && !i.types[0].bitfield.regxmm) |
34828aad | 4244 | { |
ca61edf2 | 4245 | /* Convert to DWORD. We don't want REX byte. */ |
34828aad L |
4246 | i.suffix = LONG_MNEM_SUFFIX; |
4247 | } | |
4248 | else | |
4249 | { | |
4250 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
4251 | register_prefix, i.op[op].regs->reg_name, | |
4252 | i.suffix); | |
4253 | return 0; | |
4254 | } | |
252b5132 | 4255 | } |
29b0f896 AM |
4256 | return 1; |
4257 | } | |
252b5132 | 4258 | |
29b0f896 | 4259 | static int |
e3bb37b5 | 4260 | check_word_reg (void) |
29b0f896 AM |
4261 | { |
4262 | int op; | |
4263 | for (op = i.operands; --op >= 0;) | |
4264 | /* Reject eight bit registers, except where the template requires | |
4265 | them. (eg. movzb) */ | |
40fb9820 L |
4266 | if (i.types[op].bitfield.reg8 |
4267 | && (i.tm.operand_types[op].bitfield.reg16 | |
4268 | || i.tm.operand_types[op].bitfield.reg32 | |
4269 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 4270 | { |
a540244d L |
4271 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
4272 | register_prefix, | |
29b0f896 AM |
4273 | i.op[op].regs->reg_name, |
4274 | i.tm.name, | |
4275 | i.suffix); | |
4276 | return 0; | |
4277 | } | |
4278 | /* Warn if the e prefix on a general reg is present. */ | |
4279 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
4280 | && i.types[op].bitfield.reg32 |
4281 | && (i.tm.operand_types[op].bitfield.reg16 | |
4282 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 4283 | { |
29b0f896 AM |
4284 | /* Prohibit these changes in the 64bit mode, since the |
4285 | lowering is more complicated. */ | |
4286 | if (flag_code == CODE_64BIT) | |
252b5132 | 4287 | { |
2ca3ace5 L |
4288 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
4289 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
4290 | i.suffix); |
4291 | return 0; | |
252b5132 | 4292 | } |
29b0f896 AM |
4293 | else |
4294 | #if REGISTER_WARNINGS | |
a540244d L |
4295 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
4296 | register_prefix, | |
29b0f896 | 4297 | (i.op[op].regs + REGNAM_AX - REGNAM_EAX)->reg_name, |
a540244d | 4298 | register_prefix, |
29b0f896 AM |
4299 | i.op[op].regs->reg_name, |
4300 | i.suffix); | |
4301 | #endif | |
4302 | } | |
4303 | return 1; | |
4304 | } | |
252b5132 | 4305 | |
29b0f896 | 4306 | static int |
40fb9820 | 4307 | update_imm (unsigned int j) |
29b0f896 | 4308 | { |
40fb9820 L |
4309 | i386_operand_type overlap; |
4310 | ||
c6fb90c8 | 4311 | overlap = operand_type_and (i.types[j], i.tm.operand_types[j]); |
40fb9820 L |
4312 | if ((overlap.bitfield.imm8 |
4313 | || overlap.bitfield.imm8s | |
4314 | || overlap.bitfield.imm16 | |
4315 | || overlap.bitfield.imm32 | |
4316 | || overlap.bitfield.imm32s | |
4317 | || overlap.bitfield.imm64) | |
0dfbf9d7 L |
4318 | && !operand_type_equal (&overlap, &imm8) |
4319 | && !operand_type_equal (&overlap, &imm8s) | |
4320 | && !operand_type_equal (&overlap, &imm16) | |
4321 | && !operand_type_equal (&overlap, &imm32) | |
4322 | && !operand_type_equal (&overlap, &imm32s) | |
4323 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 AM |
4324 | { |
4325 | if (i.suffix) | |
4326 | { | |
40fb9820 L |
4327 | i386_operand_type temp; |
4328 | ||
0dfbf9d7 | 4329 | operand_type_set (&temp, 0); |
40fb9820 L |
4330 | if (i.suffix == BYTE_MNEM_SUFFIX) |
4331 | { | |
4332 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
4333 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
4334 | } | |
4335 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
4336 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
4337 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
4338 | { | |
4339 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
4340 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
4341 | } | |
4342 | else | |
4343 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
4344 | overlap = temp; | |
29b0f896 | 4345 | } |
0dfbf9d7 L |
4346 | else if (operand_type_equal (&overlap, &imm16_32_32s) |
4347 | || operand_type_equal (&overlap, &imm16_32) | |
4348 | || operand_type_equal (&overlap, &imm16_32s)) | |
29b0f896 | 4349 | { |
40fb9820 | 4350 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
65da13b5 | 4351 | overlap = imm16; |
40fb9820 | 4352 | else |
65da13b5 | 4353 | overlap = imm32s; |
29b0f896 | 4354 | } |
0dfbf9d7 L |
4355 | if (!operand_type_equal (&overlap, &imm8) |
4356 | && !operand_type_equal (&overlap, &imm8s) | |
4357 | && !operand_type_equal (&overlap, &imm16) | |
4358 | && !operand_type_equal (&overlap, &imm32) | |
4359 | && !operand_type_equal (&overlap, &imm32s) | |
4360 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 | 4361 | { |
4eed87de AM |
4362 | as_bad (_("no instruction mnemonic suffix given; " |
4363 | "can't determine immediate size")); | |
29b0f896 AM |
4364 | return 0; |
4365 | } | |
4366 | } | |
40fb9820 | 4367 | i.types[j] = overlap; |
29b0f896 | 4368 | |
40fb9820 L |
4369 | return 1; |
4370 | } | |
4371 | ||
4372 | static int | |
4373 | finalize_imm (void) | |
4374 | { | |
4375 | unsigned int j; | |
29b0f896 | 4376 | |
40fb9820 L |
4377 | for (j = 0; j < 2; j++) |
4378 | if (update_imm (j) == 0) | |
4379 | return 0; | |
4380 | ||
c6fb90c8 | 4381 | i.types[2] = operand_type_and (i.types[2], i.tm.operand_types[2]); |
40fb9820 | 4382 | assert (operand_type_check (i.types[2], imm) == 0); |
29b0f896 AM |
4383 | |
4384 | return 1; | |
4385 | } | |
4386 | ||
85f10a01 MM |
4387 | static void |
4388 | process_drex (void) | |
4389 | { | |
5dd15031 JJ |
4390 | i.drex.modrm_reg = 0; |
4391 | i.drex.modrm_regmem = 0; | |
85f10a01 MM |
4392 | |
4393 | /* SSE5 4 operand instructions must have the destination the same as | |
4394 | one of the inputs. Figure out the destination register and cache | |
4395 | it away in the drex field, and remember which fields to use for | |
4396 | the modrm byte. */ | |
4397 | if (i.tm.opcode_modifier.drex | |
4398 | && i.tm.opcode_modifier.drexv | |
4399 | && i.operands == 4) | |
4400 | { | |
4401 | i.tm.extension_opcode = None; | |
4402 | ||
4403 | /* Case 1: 4 operand insn, dest = src1, src3 = register. */ | |
4404 | if (i.types[0].bitfield.regxmm != 0 | |
4405 | && i.types[1].bitfield.regxmm != 0 | |
4406 | && i.types[2].bitfield.regxmm != 0 | |
4407 | && i.types[3].bitfield.regxmm != 0 | |
4408 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4409 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4410 | { | |
4411 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4412 | operand_type_set (&i.types[0], 0); |
4413 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4414 | i.reg_operands -= 2; |
4415 | ||
4416 | /* There are two different ways to encode a 4 operand | |
4417 | instruction with all registers that uses OC1 set to | |
4418 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
4419 | actions of other SSE5 assemblers. Use modrm encoding 2 | |
4420 | for register/register. Include the high order bit that | |
4421 | is normally stored in the REX byte in the register | |
4422 | field. */ | |
4423 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
4424 | i.drex.modrm_reg = 2; | |
4425 | i.drex.modrm_regmem = 1; | |
4426 | i.drex.reg = (i.op[3].regs->reg_num | |
4427 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4428 | } | |
4429 | ||
4430 | /* Case 2: 4 operand insn, dest = src1, src3 = memory. */ | |
4431 | else if (i.types[0].bitfield.regxmm != 0 | |
4432 | && i.types[1].bitfield.regxmm != 0 | |
4433 | && (i.types[2].bitfield.regxmm | |
4434 | || operand_type_check (i.types[2], anymem)) | |
4435 | && i.types[3].bitfield.regxmm != 0 | |
4436 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4437 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4438 | { | |
4439 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4440 | operand_type_set (&i.types[0], 0); |
4441 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4442 | i.reg_operands -= 2; |
4443 | ||
4444 | /* Specify the modrm encoding for memory addressing. Include | |
4445 | the high order bit that is normally stored in the REX byte | |
4446 | in the register field. */ | |
4447 | i.tm.extension_opcode = DREX_X1_X2_XMEM_X1; | |
4448 | i.drex.modrm_reg = 1; | |
4449 | i.drex.modrm_regmem = 2; | |
4450 | i.drex.reg = (i.op[3].regs->reg_num | |
4451 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4452 | } | |
4453 | ||
4454 | /* Case 3: 4 operand insn, dest = src1, src2 = memory. */ | |
4455 | else if (i.types[0].bitfield.regxmm != 0 | |
4456 | && operand_type_check (i.types[1], anymem) != 0 | |
4457 | && i.types[2].bitfield.regxmm != 0 | |
4458 | && i.types[3].bitfield.regxmm != 0 | |
4459 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4460 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4461 | { | |
4462 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4463 | operand_type_set (&i.types[0], 0); |
4464 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4465 | i.reg_operands -= 2; |
4466 | ||
4467 | /* Specify the modrm encoding for memory addressing. Include | |
4468 | the high order bit that is normally stored in the REX byte | |
4469 | in the register field. */ | |
4470 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
4471 | i.drex.modrm_reg = 2; | |
4472 | i.drex.modrm_regmem = 1; | |
4473 | i.drex.reg = (i.op[3].regs->reg_num | |
4474 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4475 | } | |
4476 | ||
4477 | /* Case 4: 4 operand insn, dest = src3, src2 = register. */ | |
4478 | else if (i.types[0].bitfield.regxmm != 0 | |
4479 | && i.types[1].bitfield.regxmm != 0 | |
4480 | && i.types[2].bitfield.regxmm != 0 | |
4481 | && i.types[3].bitfield.regxmm != 0 | |
4482 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4483 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4484 | { | |
4485 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4486 | operand_type_set (&i.types[2], 0); |
4487 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4488 | i.reg_operands -= 2; |
4489 | ||
4490 | /* There are two different ways to encode a 4 operand | |
4491 | instruction with all registers that uses OC1 set to | |
4492 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
4493 | actions of other SSE5 assemblers. Use modrm encoding | |
4494 | 2 for register/register. Include the high order bit that | |
4495 | is normally stored in the REX byte in the register | |
4496 | field. */ | |
4497 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4498 | i.drex.modrm_reg = 1; | |
4499 | i.drex.modrm_regmem = 0; | |
4500 | ||
4501 | /* Remember the register, including the upper bits */ | |
4502 | i.drex.reg = (i.op[3].regs->reg_num | |
4503 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4504 | } | |
4505 | ||
4506 | /* Case 5: 4 operand insn, dest = src3, src2 = memory. */ | |
4507 | else if (i.types[0].bitfield.regxmm != 0 | |
4508 | && (i.types[1].bitfield.regxmm | |
4509 | || operand_type_check (i.types[1], anymem)) | |
4510 | && i.types[2].bitfield.regxmm != 0 | |
4511 | && i.types[3].bitfield.regxmm != 0 | |
4512 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4513 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4514 | { | |
4515 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 L |
4516 | operand_type_set (&i.types[2], 0); |
4517 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4518 | i.reg_operands -= 2; |
4519 | ||
4520 | /* Specify the modrm encoding and remember the register | |
4521 | including the bits normally stored in the REX byte. */ | |
4522 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X2; | |
4523 | i.drex.modrm_reg = 0; | |
4524 | i.drex.modrm_regmem = 1; | |
4525 | i.drex.reg = (i.op[3].regs->reg_num | |
4526 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4527 | } | |
4528 | ||
4529 | /* Case 6: 4 operand insn, dest = src3, src1 = memory. */ | |
4530 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4531 | && i.types[1].bitfield.regxmm != 0 | |
4532 | && i.types[2].bitfield.regxmm != 0 | |
4533 | && i.types[3].bitfield.regxmm != 0 | |
4534 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4535 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4536 | { | |
4537 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4538 | operand_type_set (&i.types[2], 0); |
4539 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4540 | i.reg_operands -= 2; |
4541 | ||
4542 | /* Specify the modrm encoding and remember the register | |
4543 | including the bits normally stored in the REX byte. */ | |
4544 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4545 | i.drex.modrm_reg = 1; | |
4546 | i.drex.modrm_regmem = 0; | |
4547 | i.drex.reg = (i.op[3].regs->reg_num | |
4548 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4549 | } | |
4550 | ||
4551 | else | |
4552 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4553 | i.tm.name); | |
4554 | } | |
4555 | ||
4556 | /* SSE5 instructions with the DREX byte where the only memory operand | |
4557 | is in the 2nd argument, and the first and last xmm register must | |
4558 | match, and is encoded in the DREX byte. */ | |
4559 | else if (i.tm.opcode_modifier.drex | |
4560 | && !i.tm.opcode_modifier.drexv | |
4561 | && i.operands == 4) | |
4562 | { | |
4563 | /* Case 1: 4 operand insn, dest = src1, src3 = reg/mem. */ | |
4564 | if (i.types[0].bitfield.regxmm != 0 | |
4565 | && (i.types[1].bitfield.regxmm | |
4566 | || operand_type_check(i.types[1], anymem)) | |
4567 | && i.types[2].bitfield.regxmm != 0 | |
4568 | && i.types[3].bitfield.regxmm != 0 | |
4569 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4570 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4571 | { | |
4572 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 L |
4573 | operand_type_set (&i.types[0], 0); |
4574 | operand_type_set (&i.types[3], 0); | |
85f10a01 MM |
4575 | i.reg_operands -= 2; |
4576 | ||
4577 | /* Specify the modrm encoding and remember the register | |
4578 | including the high bit normally stored in the REX | |
4579 | byte. */ | |
4580 | i.drex.modrm_reg = 2; | |
4581 | i.drex.modrm_regmem = 1; | |
4582 | i.drex.reg = (i.op[3].regs->reg_num | |
4583 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4584 | } | |
4585 | ||
4586 | else | |
4587 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4588 | i.tm.name); | |
4589 | } | |
4590 | ||
4591 | /* SSE5 3 operand instructions that the result is a register, being | |
4592 | either operand can be a memory operand, using OC0 to note which | |
4593 | one is the memory. */ | |
4594 | else if (i.tm.opcode_modifier.drex | |
4595 | && i.tm.opcode_modifier.drexv | |
4596 | && i.operands == 3) | |
4597 | { | |
4598 | i.tm.extension_opcode = None; | |
4599 | ||
4600 | /* Case 1: 3 operand insn, src1 = register. */ | |
4601 | if (i.types[0].bitfield.regxmm != 0 | |
4602 | && i.types[1].bitfield.regxmm != 0 | |
4603 | && i.types[2].bitfield.regxmm != 0) | |
4604 | { | |
4605 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4606 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4607 | i.reg_operands--; |
4608 | ||
4609 | /* Specify the modrm encoding and remember the register | |
4610 | including the high bit normally stored in the REX byte. */ | |
4611 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4612 | i.drex.modrm_reg = 1; | |
4613 | i.drex.modrm_regmem = 0; | |
4614 | i.drex.reg = (i.op[2].regs->reg_num | |
4615 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4616 | } | |
4617 | ||
4618 | /* Case 2: 3 operand insn, src1 = memory. */ | |
4619 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4620 | && i.types[1].bitfield.regxmm != 0 | |
4621 | && i.types[2].bitfield.regxmm != 0) | |
4622 | { | |
4623 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4624 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4625 | i.reg_operands--; |
4626 | ||
4627 | /* Specify the modrm encoding and remember the register | |
4628 | including the high bit normally stored in the REX | |
4629 | byte. */ | |
4630 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4631 | i.drex.modrm_reg = 1; | |
4632 | i.drex.modrm_regmem = 0; | |
4633 | i.drex.reg = (i.op[2].regs->reg_num | |
4634 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4635 | } | |
4636 | ||
4637 | /* Case 3: 3 operand insn, src2 = memory. */ | |
4638 | else if (i.types[0].bitfield.regxmm != 0 | |
4639 | && operand_type_check (i.types[1], anymem) != 0 | |
4640 | && i.types[2].bitfield.regxmm != 0) | |
4641 | { | |
4642 | /* Clear the arguments that are stored in drex. */ | |
0dfbf9d7 | 4643 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4644 | i.reg_operands--; |
4645 | ||
4646 | /* Specify the modrm encoding and remember the register | |
4647 | including the high bit normally stored in the REX byte. */ | |
4648 | i.tm.extension_opcode = DREX_X1_XMEM_X2; | |
4649 | i.drex.modrm_reg = 0; | |
4650 | i.drex.modrm_regmem = 1; | |
4651 | i.drex.reg = (i.op[2].regs->reg_num | |
4652 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4653 | } | |
4654 | ||
4655 | else | |
4656 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4657 | i.tm.name); | |
4658 | } | |
4659 | ||
4660 | /* SSE5 4 operand instructions that are the comparison instructions | |
4661 | where the first operand is the immediate value of the comparison | |
4662 | to be done. */ | |
4663 | else if (i.tm.opcode_modifier.drexc != 0 && i.operands == 4) | |
4664 | { | |
4665 | /* Case 1: 4 operand insn, src1 = reg/memory. */ | |
4666 | if (operand_type_check (i.types[0], imm) != 0 | |
4667 | && (i.types[1].bitfield.regxmm | |
4668 | || operand_type_check (i.types[1], anymem)) | |
4669 | && i.types[2].bitfield.regxmm != 0 | |
4670 | && i.types[3].bitfield.regxmm != 0) | |
4671 | { | |
4672 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 | 4673 | operand_type_set (&i.types[3], 0); |
85f10a01 MM |
4674 | i.reg_operands--; |
4675 | ||
4676 | /* Specify the modrm encoding and remember the register | |
4677 | including the high bit normally stored in the REX byte. */ | |
4678 | i.drex.modrm_reg = 2; | |
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 2: 3 operand insn with ImmExt that places the | |
4685 | opcode_extension as an immediate argument. This is used for | |
4686 | all of the varients of comparison that supplies the appropriate | |
4687 | value as part of the instruction. */ | |
4688 | else if ((i.types[0].bitfield.regxmm | |
4689 | || operand_type_check (i.types[0], anymem)) | |
4690 | && i.types[1].bitfield.regxmm != 0 | |
4691 | && i.types[2].bitfield.regxmm != 0 | |
4692 | && operand_type_check (i.types[3], imm) != 0) | |
4693 | { | |
4694 | /* clear the arguments that are stored in drex */ | |
0dfbf9d7 | 4695 | operand_type_set (&i.types[2], 0); |
85f10a01 MM |
4696 | i.reg_operands--; |
4697 | ||
4698 | /* Specify the modrm encoding and remember the register | |
4699 | including the high bit normally stored in the REX byte. */ | |
4700 | i.drex.modrm_reg = 1; | |
4701 | i.drex.modrm_regmem = 0; | |
4702 | i.drex.reg = (i.op[2].regs->reg_num | |
4703 | + ((i.op[2].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 | else if (i.tm.opcode_modifier.drex | |
4712 | || i.tm.opcode_modifier.drexv | |
4713 | || i.tm.opcode_modifier.drexc) | |
4714 | as_bad (_("Internal error for the '%s' instruction"), i.tm.name); | |
4715 | } | |
4716 | ||
c0f3af97 L |
4717 | static int |
4718 | bad_implicit_operand (int xmm) | |
4719 | { | |
4720 | const char *reg = xmm ? "xmm0" : "ymm0"; | |
4721 | if (intel_syntax) | |
4722 | as_bad (_("the last operand of `%s' must be `%s%s'"), | |
4723 | i.tm.name, register_prefix, reg); | |
4724 | else | |
4725 | as_bad (_("the first operand of `%s' must be `%s%s'"), | |
4726 | i.tm.name, register_prefix, reg); | |
4727 | return 0; | |
4728 | } | |
4729 | ||
29b0f896 | 4730 | static int |
e3bb37b5 | 4731 | process_operands (void) |
29b0f896 AM |
4732 | { |
4733 | /* Default segment register this instruction will use for memory | |
4734 | accesses. 0 means unknown. This is only for optimizing out | |
4735 | unnecessary segment overrides. */ | |
4736 | const seg_entry *default_seg = 0; | |
4737 | ||
85f10a01 MM |
4738 | /* Handle all of the DREX munging that SSE5 needs. */ |
4739 | if (i.tm.opcode_modifier.drex | |
4740 | || i.tm.opcode_modifier.drexv | |
4741 | || i.tm.opcode_modifier.drexc) | |
4742 | process_drex (); | |
4743 | ||
c0f3af97 L |
4744 | if (i.tm.opcode_modifier.sse2avx |
4745 | && (i.tm.opcode_modifier.vexnds | |
4746 | || i.tm.opcode_modifier.vexndd)) | |
29b0f896 | 4747 | { |
c0f3af97 L |
4748 | unsigned int dup = i.operands; |
4749 | unsigned int dest = dup - 1; | |
9fcfb3d7 L |
4750 | unsigned int j; |
4751 | ||
c0f3af97 | 4752 | /* The destination must be an xmm register. */ |
0dfbf9d7 | 4753 | assert (i.reg_operands |
c0f3af97 L |
4754 | && MAX_OPERANDS > dup |
4755 | && operand_type_equal (&i.types[dest], ®xmm)); | |
4756 | ||
4757 | if (i.tm.opcode_modifier.firstxmm0) | |
e2ec9d29 | 4758 | { |
c0f3af97 L |
4759 | /* The first operand is implicit and must be xmm0. */ |
4760 | assert (operand_type_equal (&i.types[0], ®xmm)); | |
4761 | if (i.op[0].regs->reg_num != 0) | |
4762 | return bad_implicit_operand (1); | |
4763 | ||
4764 | if (i.tm.opcode_modifier.vex3sources) | |
4765 | { | |
4766 | /* Keep xmm0 for instructions with VEX prefix and 3 | |
4767 | sources. */ | |
4768 | goto duplicate; | |
4769 | } | |
e2ec9d29 | 4770 | else |
c0f3af97 L |
4771 | { |
4772 | /* We remove the first xmm0 and keep the number of | |
4773 | operands unchanged, which in fact duplicates the | |
4774 | destination. */ | |
4775 | for (j = 1; j < i.operands; j++) | |
4776 | { | |
4777 | i.op[j - 1] = i.op[j]; | |
4778 | i.types[j - 1] = i.types[j]; | |
4779 | i.tm.operand_types[j - 1] = i.tm.operand_types[j]; | |
4780 | } | |
4781 | } | |
4782 | } | |
4783 | else if (i.tm.opcode_modifier.implicit1stxmm0) | |
4784 | { | |
4785 | assert ((MAX_OPERANDS - 1) > dup | |
4786 | && i.tm.opcode_modifier.vex3sources); | |
4787 | ||
4788 | /* Add the implicit xmm0 for instructions with VEX prefix | |
4789 | and 3 sources. */ | |
4790 | for (j = i.operands; j > 0; j--) | |
4791 | { | |
4792 | i.op[j] = i.op[j - 1]; | |
4793 | i.types[j] = i.types[j - 1]; | |
4794 | i.tm.operand_types[j] = i.tm.operand_types[j - 1]; | |
4795 | } | |
4796 | i.op[0].regs | |
4797 | = (const reg_entry *) hash_find (reg_hash, "xmm0"); | |
4798 | i.types[0] = regxmm; | |
4799 | i.tm.operand_types[0] = regxmm; | |
4800 | ||
4801 | i.operands += 2; | |
4802 | i.reg_operands += 2; | |
4803 | i.tm.operands += 2; | |
4804 | ||
4805 | dup++; | |
4806 | dest++; | |
4807 | i.op[dup] = i.op[dest]; | |
4808 | i.types[dup] = i.types[dest]; | |
4809 | i.tm.operand_types[dup] = i.tm.operand_types[dest]; | |
e2ec9d29 | 4810 | } |
c0f3af97 L |
4811 | else |
4812 | { | |
4813 | duplicate: | |
4814 | i.operands++; | |
4815 | i.reg_operands++; | |
4816 | i.tm.operands++; | |
4817 | ||
4818 | i.op[dup] = i.op[dest]; | |
4819 | i.types[dup] = i.types[dest]; | |
4820 | i.tm.operand_types[dup] = i.tm.operand_types[dest]; | |
4821 | } | |
4822 | ||
4823 | if (i.tm.opcode_modifier.immext) | |
4824 | process_immext (); | |
4825 | } | |
4826 | else if (i.tm.opcode_modifier.firstxmm0) | |
4827 | { | |
4828 | unsigned int j; | |
4829 | ||
4830 | /* The first operand is implicit and must be xmm0/ymm0. */ | |
4831 | assert (i.reg_operands | |
4832 | && (operand_type_equal (&i.types[0], ®xmm) | |
4833 | || operand_type_equal (&i.types[0], ®ymm))); | |
4834 | if (i.op[0].regs->reg_num != 0) | |
4835 | return bad_implicit_operand (i.types[0].bitfield.regxmm); | |
9fcfb3d7 L |
4836 | |
4837 | for (j = 1; j < i.operands; j++) | |
4838 | { | |
4839 | i.op[j - 1] = i.op[j]; | |
4840 | i.types[j - 1] = i.types[j]; | |
4841 | ||
4842 | /* We need to adjust fields in i.tm since they are used by | |
4843 | build_modrm_byte. */ | |
4844 | i.tm.operand_types [j - 1] = i.tm.operand_types [j]; | |
4845 | } | |
4846 | ||
e2ec9d29 L |
4847 | i.operands--; |
4848 | i.reg_operands--; | |
e2ec9d29 L |
4849 | i.tm.operands--; |
4850 | } | |
4851 | else if (i.tm.opcode_modifier.regkludge) | |
4852 | { | |
4853 | /* The imul $imm, %reg instruction is converted into | |
4854 | imul $imm, %reg, %reg, and the clr %reg instruction | |
4855 | is converted into xor %reg, %reg. */ | |
4856 | ||
4857 | unsigned int first_reg_op; | |
4858 | ||
4859 | if (operand_type_check (i.types[0], reg)) | |
4860 | first_reg_op = 0; | |
4861 | else | |
4862 | first_reg_op = 1; | |
4863 | /* Pretend we saw the extra register operand. */ | |
4864 | assert (i.reg_operands == 1 | |
4865 | && i.op[first_reg_op + 1].regs == 0); | |
4866 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; | |
4867 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
4868 | i.operands++; | |
4869 | i.reg_operands++; | |
29b0f896 AM |
4870 | } |
4871 | ||
40fb9820 | 4872 | if (i.tm.opcode_modifier.shortform) |
29b0f896 | 4873 | { |
40fb9820 L |
4874 | if (i.types[0].bitfield.sreg2 |
4875 | || i.types[0].bitfield.sreg3) | |
29b0f896 | 4876 | { |
4eed87de AM |
4877 | if (i.tm.base_opcode == POP_SEG_SHORT |
4878 | && i.op[0].regs->reg_num == 1) | |
29b0f896 | 4879 | { |
4eed87de AM |
4880 | as_bad (_("you can't `pop %%cs'")); |
4881 | return 0; | |
29b0f896 | 4882 | } |
4eed87de AM |
4883 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); |
4884 | if ((i.op[0].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4885 | i.rex |= REX_B; |
4eed87de AM |
4886 | } |
4887 | else | |
4888 | { | |
85f10a01 MM |
4889 | /* The register or float register operand is in operand |
4890 | 0 or 1. */ | |
40fb9820 L |
4891 | unsigned int op; |
4892 | ||
4893 | if (i.types[0].bitfield.floatreg | |
4894 | || operand_type_check (i.types[0], reg)) | |
4895 | op = 0; | |
4896 | else | |
4897 | op = 1; | |
4eed87de AM |
4898 | /* Register goes in low 3 bits of opcode. */ |
4899 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
4900 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4901 | i.rex |= REX_B; |
40fb9820 | 4902 | if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 | 4903 | { |
4eed87de AM |
4904 | /* Warn about some common errors, but press on regardless. |
4905 | The first case can be generated by gcc (<= 2.8.1). */ | |
4906 | if (i.operands == 2) | |
4907 | { | |
4908 | /* Reversed arguments on faddp, fsubp, etc. */ | |
a540244d L |
4909 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, |
4910 | register_prefix, i.op[1].regs->reg_name, | |
4911 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de AM |
4912 | } |
4913 | else | |
4914 | { | |
4915 | /* Extraneous `l' suffix on fp insn. */ | |
a540244d L |
4916 | as_warn (_("translating to `%s %s%s'"), i.tm.name, |
4917 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de | 4918 | } |
29b0f896 AM |
4919 | } |
4920 | } | |
4921 | } | |
40fb9820 | 4922 | else if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
4923 | { |
4924 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
4925 | must be put into the modrm byte). Now, we make the modrm and |
4926 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
4927 | |
4928 | default_seg = build_modrm_byte (); | |
4929 | } | |
8a2ed489 | 4930 | else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32) |
29b0f896 AM |
4931 | { |
4932 | default_seg = &ds; | |
4933 | } | |
40fb9820 | 4934 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
4935 | { |
4936 | /* For the string instructions that allow a segment override | |
4937 | on one of their operands, the default segment is ds. */ | |
4938 | default_seg = &ds; | |
4939 | } | |
4940 | ||
75178d9d L |
4941 | if (i.tm.base_opcode == 0x8d /* lea */ |
4942 | && i.seg[0] | |
4943 | && !quiet_warnings) | |
30123838 | 4944 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); |
52271982 AM |
4945 | |
4946 | /* If a segment was explicitly specified, and the specified segment | |
4947 | is not the default, use an opcode prefix to select it. If we | |
4948 | never figured out what the default segment is, then default_seg | |
4949 | will be zero at this point, and the specified segment prefix will | |
4950 | always be used. */ | |
29b0f896 AM |
4951 | if ((i.seg[0]) && (i.seg[0] != default_seg)) |
4952 | { | |
4953 | if (!add_prefix (i.seg[0]->seg_prefix)) | |
4954 | return 0; | |
4955 | } | |
4956 | return 1; | |
4957 | } | |
4958 | ||
4959 | static const seg_entry * | |
e3bb37b5 | 4960 | build_modrm_byte (void) |
29b0f896 AM |
4961 | { |
4962 | const seg_entry *default_seg = 0; | |
c0f3af97 L |
4963 | unsigned int source, dest; |
4964 | int vex_3_sources; | |
4965 | ||
4966 | /* The first operand of instructions with VEX prefix and 3 sources | |
4967 | must be VEX_Imm4. */ | |
4968 | vex_3_sources = i.tm.opcode_modifier.vex3sources; | |
4969 | if (vex_3_sources) | |
4970 | { | |
4971 | unsigned int nds, reg; | |
4972 | ||
4973 | if (i.tm.opcode_modifier.veximmext | |
4974 | && i.tm.opcode_modifier.immext) | |
4975 | { | |
4976 | dest = i.operands - 2; | |
4977 | assert (dest == 3); | |
4978 | } | |
4979 | else | |
4980 | dest = i.operands - 1; | |
4981 | nds = dest - 1; | |
4982 | ||
4983 | /* There are 2 kinds of instructions: | |
4984 | 1. 5 operands: one immediate operand and 4 register | |
4985 | operands or 3 register operands plus 1 memory operand. | |
4986 | It must have VexNDS and VexW0 or VexW1. The destination | |
4987 | must be either XMM or YMM register. | |
4988 | 2. 4 operands: 4 register operands or 3 register operands | |
4989 | plus 1 memory operand. It must have VexNDS and VexImmExt. */ | |
4990 | if (!((i.reg_operands == 4 | |
4991 | || (i.reg_operands == 3 && i.mem_operands == 1)) | |
4992 | && i.tm.opcode_modifier.vexnds | |
4993 | && (operand_type_equal (&i.tm.operand_types[dest], ®xmm) | |
4994 | || operand_type_equal (&i.tm.operand_types[dest], ®ymm)) | |
4995 | && (operand_type_equal (&i.tm.operand_types[nds], ®xmm) | |
4996 | || operand_type_equal (&i.tm.operand_types[nds], ®ymm)) | |
4997 | && ((dest == 4 | |
4998 | && i.imm_operands == 1 | |
4999 | && i.types[0].bitfield.vex_imm4 | |
5000 | && (i.tm.opcode_modifier.vexw0 | |
5001 | || i.tm.opcode_modifier.vexw1)) | |
5002 | || (dest == 3 | |
5003 | && (i.imm_operands == 0 | |
5004 | || (i.imm_operands == 1 | |
5005 | && i.tm.opcode_modifier.immext)) | |
5006 | && i.tm.opcode_modifier.veximmext)))) | |
5007 | abort (); | |
5008 | ||
5009 | i.vex.register_specifier = i.op[nds].regs; | |
5010 | ||
5011 | if (i.imm_operands == 0) | |
5012 | { | |
5013 | /* When there is no immediate operand, generate an 8bit | |
5014 | immediate operand to encode the first operand. */ | |
5015 | expressionS *exp = &im_expressions[i.imm_operands++]; | |
5016 | i.op[i.operands].imms = exp; | |
5017 | i.types[i.operands] = imm8; | |
5018 | i.operands++; | |
5019 | /* If VexW1 is set, the first operand is the source and | |
5020 | the second operand is encoded in the immediate operand. */ | |
5021 | if (i.tm.opcode_modifier.vexw1) | |
5022 | { | |
5023 | source = 0; | |
5024 | reg = 1; | |
5025 | } | |
5026 | else | |
5027 | { | |
5028 | source = 1; | |
5029 | reg = 0; | |
5030 | } | |
5031 | assert (operand_type_equal (&i.tm.operand_types[reg], ®xmm) | |
5032 | || operand_type_equal (&i.tm.operand_types[reg], | |
5033 | ®ymm)); | |
5034 | exp->X_op = O_constant; | |
5035 | exp->X_add_number | |
5036 | = ((i.op[reg].regs->reg_num | |
5037 | + ((i.op[reg].regs->reg_flags & RegRex) ? 8 : 0)) << 4); | |
5038 | } | |
5039 | else | |
5040 | { | |
5041 | unsigned int imm; | |
5042 | ||
5043 | if (i.tm.opcode_modifier.vexw0) | |
5044 | { | |
5045 | /* If VexW0 is set, the third operand is the source and | |
5046 | the second operand is encoded in the immediate | |
5047 | operand. */ | |
5048 | source = 2; | |
5049 | reg = 1; | |
5050 | } | |
5051 | else | |
5052 | { | |
5053 | /* VexW1 is set, the second operand is the source and | |
5054 | the third operand is encoded in the immediate | |
5055 | operand. */ | |
5056 | source = 1; | |
5057 | reg = 2; | |
5058 | } | |
5059 | ||
5060 | if (i.tm.opcode_modifier.immext) | |
5061 | { | |
5062 | /* When ImmExt is set, the immdiate byte is the last | |
5063 | operand. */ | |
5064 | imm = i.operands - 1; | |
5065 | source--; | |
5066 | reg--; | |
5067 | } | |
5068 | else | |
5069 | { | |
5070 | imm = 0; | |
5071 | ||
5072 | /* Turn on Imm8 so that output_imm will generate it. */ | |
5073 | i.types[imm].bitfield.imm8 = 1; | |
5074 | } | |
5075 | ||
5076 | assert (operand_type_equal (&i.tm.operand_types[reg], ®xmm) | |
5077 | || operand_type_equal (&i.tm.operand_types[reg], | |
5078 | ®ymm)); | |
5079 | i.op[imm].imms->X_add_number | |
5080 | |= ((i.op[reg].regs->reg_num | |
5081 | + ((i.op[reg].regs->reg_flags & RegRex) ? 8 : 0)) << 4); | |
5082 | } | |
5083 | } | |
5084 | else | |
5085 | source = dest = 0; | |
29b0f896 | 5086 | |
85f10a01 MM |
5087 | /* SSE5 4 operand instructions are encoded in such a way that one of |
5088 | the inputs must match the destination register. Process_drex hides | |
5089 | the 3rd argument in the drex field, so that by the time we get | |
5090 | here, it looks to GAS as if this is a 2 operand instruction. */ | |
5091 | if ((i.tm.opcode_modifier.drex | |
5092 | || i.tm.opcode_modifier.drexv | |
b5016f89 | 5093 | || i.tm.opcode_modifier.drexc) |
85f10a01 MM |
5094 | && i.reg_operands == 2) |
5095 | { | |
5096 | const reg_entry *reg = i.op[i.drex.modrm_reg].regs; | |
5097 | const reg_entry *regmem = i.op[i.drex.modrm_regmem].regs; | |
5098 | ||
5099 | i.rm.reg = reg->reg_num; | |
5100 | i.rm.regmem = regmem->reg_num; | |
5101 | i.rm.mode = 3; | |
5102 | if ((reg->reg_flags & RegRex) != 0) | |
5103 | i.rex |= REX_R; | |
5104 | if ((regmem->reg_flags & RegRex) != 0) | |
5105 | i.rex |= REX_B; | |
5106 | } | |
5107 | ||
29b0f896 | 5108 | /* i.reg_operands MUST be the number of real register operands; |
c0f3af97 L |
5109 | implicit registers do not count. If there are 3 register |
5110 | operands, it must be a instruction with VexNDS. For a | |
5111 | instruction with VexNDD, the destination register is encoded | |
5112 | in VEX prefix. If there are 4 register operands, it must be | |
5113 | a instruction with VEX prefix and 3 sources. */ | |
5114 | else if (i.mem_operands == 0 | |
5115 | && ((i.reg_operands == 2 | |
5116 | && !i.tm.opcode_modifier.vexndd) | |
5117 | || (i.reg_operands == 3 | |
5118 | && i.tm.opcode_modifier.vexnds) | |
5119 | || (i.reg_operands == 4 && vex_3_sources))) | |
29b0f896 | 5120 | { |
cab737b9 L |
5121 | switch (i.operands) |
5122 | { | |
5123 | case 2: | |
5124 | source = 0; | |
5125 | break; | |
5126 | case 3: | |
c81128dc L |
5127 | /* When there are 3 operands, one of them may be immediate, |
5128 | which may be the first or the last operand. Otherwise, | |
c0f3af97 L |
5129 | the first operand must be shift count register (cl) or it |
5130 | is an instruction with VexNDS. */ | |
c81128dc L |
5131 | assert (i.imm_operands == 1 |
5132 | || (i.imm_operands == 0 | |
c0f3af97 L |
5133 | && (i.tm.opcode_modifier.vexnds |
5134 | || i.types[0].bitfield.shiftcount))); | |
40fb9820 L |
5135 | if (operand_type_check (i.types[0], imm) |
5136 | || i.types[0].bitfield.shiftcount) | |
5137 | source = 1; | |
5138 | else | |
5139 | source = 0; | |
cab737b9 L |
5140 | break; |
5141 | case 4: | |
368d64cc L |
5142 | /* When there are 4 operands, the first two must be 8bit |
5143 | immediate operands. The source operand will be the 3rd | |
c0f3af97 L |
5144 | one. |
5145 | ||
5146 | For instructions with VexNDS, if the first operand | |
5147 | an imm8, the source operand is the 2nd one. If the last | |
5148 | operand is imm8, the source operand is the first one. */ | |
5149 | assert ((i.imm_operands == 2 | |
5150 | && i.types[0].bitfield.imm8 | |
5151 | && i.types[1].bitfield.imm8) | |
5152 | || (i.tm.opcode_modifier.vexnds | |
5153 | && i.imm_operands == 1 | |
5154 | && (i.types[0].bitfield.imm8 | |
5155 | || i.types[i.operands - 1].bitfield.imm8))); | |
5156 | if (i.tm.opcode_modifier.vexnds) | |
5157 | { | |
5158 | if (i.types[0].bitfield.imm8) | |
5159 | source = 1; | |
5160 | else | |
5161 | source = 0; | |
5162 | } | |
5163 | else | |
5164 | source = 2; | |
5165 | break; | |
5166 | case 5: | |
cab737b9 L |
5167 | break; |
5168 | default: | |
5169 | abort (); | |
5170 | } | |
5171 | ||
c0f3af97 L |
5172 | if (!vex_3_sources) |
5173 | { | |
5174 | dest = source + 1; | |
5175 | ||
5176 | if (i.tm.opcode_modifier.vexnds) | |
5177 | { | |
5178 | /* For instructions with VexNDS, the register-only | |
5179 | source operand must be XMM or YMM register. It is | |
5180 | encoded in VEX prefix. */ | |
5181 | if ((dest + 1) >= i.operands | |
5182 | || (!operand_type_equal (&i.tm.operand_types[dest], | |
5183 | ®xmm) | |
5184 | && !operand_type_equal (&i.tm.operand_types[dest], | |
5185 | ®ymm))) | |
5186 | abort (); | |
5187 | i.vex.register_specifier = i.op[dest].regs; | |
5188 | dest++; | |
5189 | } | |
5190 | } | |
29b0f896 AM |
5191 | |
5192 | i.rm.mode = 3; | |
5193 | /* One of the register operands will be encoded in the i.tm.reg | |
5194 | field, the other in the combined i.tm.mode and i.tm.regmem | |
5195 | fields. If no form of this instruction supports a memory | |
5196 | destination operand, then we assume the source operand may | |
5197 | sometimes be a memory operand and so we need to store the | |
5198 | destination in the i.rm.reg field. */ | |
40fb9820 L |
5199 | if (!i.tm.operand_types[dest].bitfield.regmem |
5200 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) | |
29b0f896 AM |
5201 | { |
5202 | i.rm.reg = i.op[dest].regs->reg_num; | |
5203 | i.rm.regmem = i.op[source].regs->reg_num; | |
5204 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5205 | i.rex |= REX_R; |
29b0f896 | 5206 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 5207 | i.rex |= REX_B; |
29b0f896 AM |
5208 | } |
5209 | else | |
5210 | { | |
5211 | i.rm.reg = i.op[source].regs->reg_num; | |
5212 | i.rm.regmem = i.op[dest].regs->reg_num; | |
5213 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 5214 | i.rex |= REX_B; |
29b0f896 | 5215 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 5216 | i.rex |= REX_R; |
29b0f896 | 5217 | } |
161a04f6 | 5218 | if (flag_code != CODE_64BIT && (i.rex & (REX_R | REX_B))) |
c4a530c5 | 5219 | { |
40fb9820 L |
5220 | if (!i.types[0].bitfield.control |
5221 | && !i.types[1].bitfield.control) | |
c4a530c5 | 5222 | abort (); |
161a04f6 | 5223 | i.rex &= ~(REX_R | REX_B); |
c4a530c5 JB |
5224 | add_prefix (LOCK_PREFIX_OPCODE); |
5225 | } | |
29b0f896 AM |
5226 | } |
5227 | else | |
5228 | { /* If it's not 2 reg operands... */ | |
c0f3af97 L |
5229 | unsigned int mem; |
5230 | ||
29b0f896 AM |
5231 | if (i.mem_operands) |
5232 | { | |
5233 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 5234 | unsigned int op; |
4eed87de | 5235 | |
85f10a01 MM |
5236 | /* This has been precalculated for SSE5 instructions |
5237 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
5238 | if (i.tm.opcode_modifier.drex |
5239 | || i.tm.opcode_modifier.drexv | |
5240 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
5241 | op = i.drex.modrm_regmem; |
5242 | else | |
5243 | { | |
c0209578 L |
5244 | for (op = 0; op < i.operands; op++) |
5245 | if (operand_type_check (i.types[op], anymem)) | |
5246 | break; | |
5247 | assert (op < i.operands); | |
85f10a01 | 5248 | } |
29b0f896 AM |
5249 | |
5250 | default_seg = &ds; | |
5251 | ||
5252 | if (i.base_reg == 0) | |
5253 | { | |
5254 | i.rm.mode = 0; | |
5255 | if (!i.disp_operands) | |
5256 | fake_zero_displacement = 1; | |
5257 | if (i.index_reg == 0) | |
5258 | { | |
5259 | /* Operand is just <disp> */ | |
20f0a1fc | 5260 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
5261 | { |
5262 | /* 64bit mode overwrites the 32bit absolute | |
5263 | addressing by RIP relative addressing and | |
5264 | absolute addressing is encoded by one of the | |
5265 | redundant SIB forms. */ | |
5266 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
5267 | i.sib.base = NO_BASE_REGISTER; | |
5268 | i.sib.index = NO_INDEX_REGISTER; | |
fc225355 | 5269 | i.types[op] = ((i.prefix[ADDR_PREFIX] == 0) |
40fb9820 | 5270 | ? disp32s : disp32); |
20f0a1fc | 5271 | } |
fc225355 L |
5272 | else if ((flag_code == CODE_16BIT) |
5273 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
5274 | { |
5275 | i.rm.regmem = NO_BASE_REGISTER_16; | |
40fb9820 | 5276 | i.types[op] = disp16; |
20f0a1fc NC |
5277 | } |
5278 | else | |
5279 | { | |
5280 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 | 5281 | i.types[op] = disp32; |
29b0f896 AM |
5282 | } |
5283 | } | |
5284 | else /* !i.base_reg && i.index_reg */ | |
5285 | { | |
db51cc60 L |
5286 | if (i.index_reg->reg_num == RegEiz |
5287 | || i.index_reg->reg_num == RegRiz) | |
5288 | i.sib.index = NO_INDEX_REGISTER; | |
5289 | else | |
5290 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
5291 | i.sib.base = NO_BASE_REGISTER; |
5292 | i.sib.scale = i.log2_scale_factor; | |
5293 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
40fb9820 L |
5294 | i.types[op].bitfield.disp8 = 0; |
5295 | i.types[op].bitfield.disp16 = 0; | |
5296 | i.types[op].bitfield.disp64 = 0; | |
29b0f896 | 5297 | if (flag_code != CODE_64BIT) |
40fb9820 L |
5298 | { |
5299 | /* Must be 32 bit */ | |
5300 | i.types[op].bitfield.disp32 = 1; | |
5301 | i.types[op].bitfield.disp32s = 0; | |
5302 | } | |
29b0f896 | 5303 | else |
40fb9820 L |
5304 | { |
5305 | i.types[op].bitfield.disp32 = 0; | |
5306 | i.types[op].bitfield.disp32s = 1; | |
5307 | } | |
29b0f896 | 5308 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 5309 | i.rex |= REX_X; |
29b0f896 AM |
5310 | } |
5311 | } | |
5312 | /* RIP addressing for 64bit mode. */ | |
9a04903e JB |
5313 | else if (i.base_reg->reg_num == RegRip || |
5314 | i.base_reg->reg_num == RegEip) | |
29b0f896 AM |
5315 | { |
5316 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 L |
5317 | i.types[op].bitfield.disp8 = 0; |
5318 | i.types[op].bitfield.disp16 = 0; | |
5319 | i.types[op].bitfield.disp32 = 0; | |
5320 | i.types[op].bitfield.disp32s = 1; | |
5321 | i.types[op].bitfield.disp64 = 0; | |
71903a11 | 5322 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
5323 | if (! i.disp_operands) |
5324 | fake_zero_displacement = 1; | |
29b0f896 | 5325 | } |
40fb9820 | 5326 | else if (i.base_reg->reg_type.bitfield.reg16) |
29b0f896 AM |
5327 | { |
5328 | switch (i.base_reg->reg_num) | |
5329 | { | |
5330 | case 3: /* (%bx) */ | |
5331 | if (i.index_reg == 0) | |
5332 | i.rm.regmem = 7; | |
5333 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
5334 | i.rm.regmem = i.index_reg->reg_num - 6; | |
5335 | break; | |
5336 | case 5: /* (%bp) */ | |
5337 | default_seg = &ss; | |
5338 | if (i.index_reg == 0) | |
5339 | { | |
5340 | i.rm.regmem = 6; | |
40fb9820 | 5341 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
5342 | { |
5343 | /* fake (%bp) into 0(%bp) */ | |
40fb9820 | 5344 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 5345 | fake_zero_displacement = 1; |
29b0f896 AM |
5346 | } |
5347 | } | |
5348 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
5349 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
5350 | break; | |
5351 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
5352 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
5353 | } | |
5354 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
5355 | } | |
5356 | else /* i.base_reg and 32/64 bit mode */ | |
5357 | { | |
5358 | if (flag_code == CODE_64BIT | |
40fb9820 L |
5359 | && operand_type_check (i.types[op], disp)) |
5360 | { | |
5361 | i386_operand_type temp; | |
0dfbf9d7 | 5362 | operand_type_set (&temp, 0); |
40fb9820 L |
5363 | temp.bitfield.disp8 = i.types[op].bitfield.disp8; |
5364 | i.types[op] = temp; | |
5365 | if (i.prefix[ADDR_PREFIX] == 0) | |
5366 | i.types[op].bitfield.disp32s = 1; | |
5367 | else | |
5368 | i.types[op].bitfield.disp32 = 1; | |
5369 | } | |
20f0a1fc | 5370 | |
29b0f896 AM |
5371 | i.rm.regmem = i.base_reg->reg_num; |
5372 | if ((i.base_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 5373 | i.rex |= REX_B; |
29b0f896 AM |
5374 | i.sib.base = i.base_reg->reg_num; |
5375 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
5376 | complications. */ | |
5377 | if ((i.base_reg->reg_num & 7) == EBP_REG_NUM) | |
5378 | { | |
5379 | default_seg = &ss; | |
5380 | if (i.disp_operands == 0) | |
5381 | { | |
5382 | fake_zero_displacement = 1; | |
40fb9820 | 5383 | i.types[op].bitfield.disp8 = 1; |
29b0f896 AM |
5384 | } |
5385 | } | |
5386 | else if (i.base_reg->reg_num == ESP_REG_NUM) | |
5387 | { | |
5388 | default_seg = &ss; | |
5389 | } | |
5390 | i.sib.scale = i.log2_scale_factor; | |
5391 | if (i.index_reg == 0) | |
5392 | { | |
5393 | /* <disp>(%esp) becomes two byte modrm with no index | |
5394 | register. We've already stored the code for esp | |
5395 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
5396 | Any base register besides %esp will not use the | |
5397 | extra modrm byte. */ | |
5398 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 AM |
5399 | } |
5400 | else | |
5401 | { | |
db51cc60 L |
5402 | if (i.index_reg->reg_num == RegEiz |
5403 | || i.index_reg->reg_num == RegRiz) | |
5404 | i.sib.index = NO_INDEX_REGISTER; | |
5405 | else | |
5406 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
5407 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
5408 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 5409 | i.rex |= REX_X; |
29b0f896 | 5410 | } |
67a4f2b7 AO |
5411 | |
5412 | if (i.disp_operands | |
5413 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
5414 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
5415 | i.rm.mode = 0; | |
5416 | else | |
5417 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
29b0f896 | 5418 | } |
252b5132 | 5419 | |
29b0f896 AM |
5420 | if (fake_zero_displacement) |
5421 | { | |
5422 | /* Fakes a zero displacement assuming that i.types[op] | |
5423 | holds the correct displacement size. */ | |
5424 | expressionS *exp; | |
5425 | ||
5426 | assert (i.op[op].disps == 0); | |
5427 | exp = &disp_expressions[i.disp_operands++]; | |
5428 | i.op[op].disps = exp; | |
5429 | exp->X_op = O_constant; | |
5430 | exp->X_add_number = 0; | |
5431 | exp->X_add_symbol = (symbolS *) 0; | |
5432 | exp->X_op_symbol = (symbolS *) 0; | |
5433 | } | |
c0f3af97 L |
5434 | |
5435 | mem = op; | |
29b0f896 | 5436 | } |
c0f3af97 L |
5437 | else |
5438 | mem = ~0; | |
252b5132 | 5439 | |
29b0f896 AM |
5440 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
5441 | (if any) based on i.tm.extension_opcode. Again, we must be | |
5442 | careful to make sure that segment/control/debug/test/MMX | |
5443 | registers are coded into the i.rm.reg field. */ | |
5444 | if (i.reg_operands) | |
5445 | { | |
99018f42 L |
5446 | unsigned int op; |
5447 | ||
85f10a01 MM |
5448 | /* This has been precalculated for SSE5 instructions |
5449 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
5450 | if (i.tm.opcode_modifier.drex |
5451 | || i.tm.opcode_modifier.drexv | |
5452 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
5453 | { |
5454 | op = i.drex.modrm_reg; | |
5455 | i.rm.reg = i.op[op].regs->reg_num; | |
5456 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5457 | i.rex |= REX_R; | |
5458 | } | |
5459 | else | |
5460 | { | |
c0f3af97 L |
5461 | unsigned int vex_reg = ~0; |
5462 | ||
c0209578 L |
5463 | for (op = 0; op < i.operands; op++) |
5464 | if (i.types[op].bitfield.reg8 | |
5465 | || i.types[op].bitfield.reg16 | |
5466 | || i.types[op].bitfield.reg32 | |
5467 | || i.types[op].bitfield.reg64 | |
5468 | || i.types[op].bitfield.regmmx | |
5469 | || i.types[op].bitfield.regxmm | |
c0f3af97 | 5470 | || i.types[op].bitfield.regymm |
c0209578 L |
5471 | || i.types[op].bitfield.sreg2 |
5472 | || i.types[op].bitfield.sreg3 | |
5473 | || i.types[op].bitfield.control | |
5474 | || i.types[op].bitfield.debug | |
5475 | || i.types[op].bitfield.test) | |
5476 | break; | |
5477 | ||
c0f3af97 L |
5478 | if (vex_3_sources) |
5479 | op = dest; | |
5480 | else if (i.tm.opcode_modifier.vexnds) | |
5481 | { | |
5482 | /* For instructions with VexNDS, the register-only | |
5483 | source operand is encoded in VEX prefix. */ | |
5484 | assert (mem != (unsigned int) ~0); | |
5485 | ||
5486 | if (op > mem) | |
5487 | { | |
5488 | vex_reg = op++; | |
5489 | assert (op < i.operands); | |
5490 | } | |
5491 | else | |
5492 | { | |
5493 | vex_reg = op + 1; | |
5494 | assert (vex_reg < i.operands); | |
5495 | } | |
5496 | } | |
5497 | else if (i.tm.opcode_modifier.vexndd) | |
5498 | { | |
5499 | /* For instructions with VexNDD, there should be | |
5500 | no memory operand and the register destination | |
5501 | is encoded in VEX prefix. */ | |
5502 | assert (i.mem_operands == 0 | |
5503 | && (op + 2) == i.operands); | |
5504 | vex_reg = op + 1; | |
5505 | } | |
5506 | else | |
5507 | assert (op < i.operands); | |
5508 | ||
5509 | if (vex_reg != (unsigned int) ~0) | |
5510 | { | |
5511 | assert (i.reg_operands == 2); | |
5512 | ||
5513 | if (!operand_type_equal (&i.tm.operand_types[vex_reg], | |
5514 | & regxmm) | |
5515 | && !operand_type_equal (&i.tm.operand_types[vex_reg], | |
5516 | ®ymm)) | |
5517 | abort (); | |
5518 | i.vex.register_specifier = i.op[vex_reg].regs; | |
5519 | } | |
99018f42 | 5520 | |
85f10a01 MM |
5521 | /* If there is an extension opcode to put here, the |
5522 | register number must be put into the regmem field. */ | |
c0209578 L |
5523 | if (i.tm.extension_opcode != None) |
5524 | { | |
5525 | i.rm.regmem = i.op[op].regs->reg_num; | |
5526 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5527 | i.rex |= REX_B; | |
5528 | } | |
5529 | else | |
5530 | { | |
5531 | i.rm.reg = i.op[op].regs->reg_num; | |
5532 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
5533 | i.rex |= REX_R; | |
5534 | } | |
85f10a01 | 5535 | } |
252b5132 | 5536 | |
29b0f896 AM |
5537 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
5538 | must set it to 3 to indicate this is a register operand | |
5539 | in the regmem field. */ | |
5540 | if (!i.mem_operands) | |
5541 | i.rm.mode = 3; | |
5542 | } | |
252b5132 | 5543 | |
29b0f896 | 5544 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
85f10a01 MM |
5545 | if (i.tm.extension_opcode != None |
5546 | && !(i.tm.opcode_modifier.drex | |
5547 | || i.tm.opcode_modifier.drexv | |
5548 | || i.tm.opcode_modifier.drexc)) | |
29b0f896 AM |
5549 | i.rm.reg = i.tm.extension_opcode; |
5550 | } | |
5551 | return default_seg; | |
5552 | } | |
252b5132 | 5553 | |
29b0f896 | 5554 | static void |
e3bb37b5 | 5555 | output_branch (void) |
29b0f896 AM |
5556 | { |
5557 | char *p; | |
5558 | int code16; | |
5559 | int prefix; | |
5560 | relax_substateT subtype; | |
5561 | symbolS *sym; | |
5562 | offsetT off; | |
5563 | ||
5564 | code16 = 0; | |
5565 | if (flag_code == CODE_16BIT) | |
5566 | code16 = CODE16; | |
5567 | ||
5568 | prefix = 0; | |
5569 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 5570 | { |
29b0f896 AM |
5571 | prefix = 1; |
5572 | i.prefixes -= 1; | |
5573 | code16 ^= CODE16; | |
252b5132 | 5574 | } |
29b0f896 AM |
5575 | /* Pentium4 branch hints. */ |
5576 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
5577 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 5578 | { |
29b0f896 AM |
5579 | prefix++; |
5580 | i.prefixes--; | |
5581 | } | |
5582 | if (i.prefix[REX_PREFIX] != 0) | |
5583 | { | |
5584 | prefix++; | |
5585 | i.prefixes--; | |
2f66722d AM |
5586 | } |
5587 | ||
29b0f896 AM |
5588 | if (i.prefixes != 0 && !intel_syntax) |
5589 | as_warn (_("skipping prefixes on this instruction")); | |
5590 | ||
5591 | /* It's always a symbol; End frag & setup for relax. | |
5592 | Make sure there is enough room in this frag for the largest | |
5593 | instruction we may generate in md_convert_frag. This is 2 | |
5594 | bytes for the opcode and room for the prefix and largest | |
5595 | displacement. */ | |
5596 | frag_grow (prefix + 2 + 4); | |
5597 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
5598 | p = frag_more (prefix + 1); | |
5599 | if (i.prefix[DATA_PREFIX] != 0) | |
5600 | *p++ = DATA_PREFIX_OPCODE; | |
5601 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
5602 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
5603 | *p++ = i.prefix[SEG_PREFIX]; | |
5604 | if (i.prefix[REX_PREFIX] != 0) | |
5605 | *p++ = i.prefix[REX_PREFIX]; | |
5606 | *p = i.tm.base_opcode; | |
5607 | ||
5608 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
5609 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, SMALL); | |
40fb9820 | 5610 | else if (cpu_arch_flags.bitfield.cpui386) |
29b0f896 AM |
5611 | subtype = ENCODE_RELAX_STATE (COND_JUMP, SMALL); |
5612 | else | |
5613 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, SMALL); | |
5614 | subtype |= code16; | |
3e73aa7c | 5615 | |
29b0f896 AM |
5616 | sym = i.op[0].disps->X_add_symbol; |
5617 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 5618 | |
29b0f896 AM |
5619 | if (i.op[0].disps->X_op != O_constant |
5620 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 5621 | { |
29b0f896 AM |
5622 | /* Handle complex expressions. */ |
5623 | sym = make_expr_symbol (i.op[0].disps); | |
5624 | off = 0; | |
5625 | } | |
3e73aa7c | 5626 | |
29b0f896 AM |
5627 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
5628 | Pass reloc in fr_var. */ | |
5629 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); | |
5630 | } | |
3e73aa7c | 5631 | |
29b0f896 | 5632 | static void |
e3bb37b5 | 5633 | output_jump (void) |
29b0f896 AM |
5634 | { |
5635 | char *p; | |
5636 | int size; | |
3e02c1cc | 5637 | fixS *fixP; |
29b0f896 | 5638 | |
40fb9820 | 5639 | if (i.tm.opcode_modifier.jumpbyte) |
29b0f896 AM |
5640 | { |
5641 | /* This is a loop or jecxz type instruction. */ | |
5642 | size = 1; | |
5643 | if (i.prefix[ADDR_PREFIX] != 0) | |
5644 | { | |
5645 | FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE); | |
5646 | i.prefixes -= 1; | |
5647 | } | |
5648 | /* Pentium4 branch hints. */ | |
5649 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
5650 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
5651 | { | |
5652 | FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]); | |
5653 | i.prefixes--; | |
3e73aa7c JH |
5654 | } |
5655 | } | |
29b0f896 AM |
5656 | else |
5657 | { | |
5658 | int code16; | |
3e73aa7c | 5659 | |
29b0f896 AM |
5660 | code16 = 0; |
5661 | if (flag_code == CODE_16BIT) | |
5662 | code16 = CODE16; | |
3e73aa7c | 5663 | |
29b0f896 AM |
5664 | if (i.prefix[DATA_PREFIX] != 0) |
5665 | { | |
5666 | FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE); | |
5667 | i.prefixes -= 1; | |
5668 | code16 ^= CODE16; | |
5669 | } | |
252b5132 | 5670 | |
29b0f896 AM |
5671 | size = 4; |
5672 | if (code16) | |
5673 | size = 2; | |
5674 | } | |
9fcc94b6 | 5675 | |
29b0f896 AM |
5676 | if (i.prefix[REX_PREFIX] != 0) |
5677 | { | |
5678 | FRAG_APPEND_1_CHAR (i.prefix[REX_PREFIX]); | |
5679 | i.prefixes -= 1; | |
5680 | } | |
252b5132 | 5681 | |
29b0f896 AM |
5682 | if (i.prefixes != 0 && !intel_syntax) |
5683 | as_warn (_("skipping prefixes on this instruction")); | |
e0890092 | 5684 | |
29b0f896 AM |
5685 | p = frag_more (1 + size); |
5686 | *p++ = i.tm.base_opcode; | |
e0890092 | 5687 | |
3e02c1cc AM |
5688 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
5689 | i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0])); | |
5690 | ||
5691 | /* All jumps handled here are signed, but don't use a signed limit | |
5692 | check for 32 and 16 bit jumps as we want to allow wrap around at | |
5693 | 4G and 64k respectively. */ | |
5694 | if (size == 1) | |
5695 | fixP->fx_signed = 1; | |
29b0f896 | 5696 | } |
e0890092 | 5697 | |
29b0f896 | 5698 | static void |
e3bb37b5 | 5699 | output_interseg_jump (void) |
29b0f896 AM |
5700 | { |
5701 | char *p; | |
5702 | int size; | |
5703 | int prefix; | |
5704 | int code16; | |
252b5132 | 5705 | |
29b0f896 AM |
5706 | code16 = 0; |
5707 | if (flag_code == CODE_16BIT) | |
5708 | code16 = CODE16; | |
a217f122 | 5709 | |
29b0f896 AM |
5710 | prefix = 0; |
5711 | if (i.prefix[DATA_PREFIX] != 0) | |
5712 | { | |
5713 | prefix = 1; | |
5714 | i.prefixes -= 1; | |
5715 | code16 ^= CODE16; | |
5716 | } | |
5717 | if (i.prefix[REX_PREFIX] != 0) | |
5718 | { | |
5719 | prefix++; | |
5720 | i.prefixes -= 1; | |
5721 | } | |
252b5132 | 5722 | |
29b0f896 AM |
5723 | size = 4; |
5724 | if (code16) | |
5725 | size = 2; | |
252b5132 | 5726 | |
29b0f896 AM |
5727 | if (i.prefixes != 0 && !intel_syntax) |
5728 | as_warn (_("skipping prefixes on this instruction")); | |
252b5132 | 5729 | |
29b0f896 AM |
5730 | /* 1 opcode; 2 segment; offset */ |
5731 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 5732 | |
29b0f896 AM |
5733 | if (i.prefix[DATA_PREFIX] != 0) |
5734 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 5735 | |
29b0f896 AM |
5736 | if (i.prefix[REX_PREFIX] != 0) |
5737 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 5738 | |
29b0f896 AM |
5739 | *p++ = i.tm.base_opcode; |
5740 | if (i.op[1].imms->X_op == O_constant) | |
5741 | { | |
5742 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 5743 | |
29b0f896 AM |
5744 | if (size == 2 |
5745 | && !fits_in_unsigned_word (n) | |
5746 | && !fits_in_signed_word (n)) | |
5747 | { | |
5748 | as_bad (_("16-bit jump out of range")); | |
5749 | return; | |
5750 | } | |
5751 | md_number_to_chars (p, n, size); | |
5752 | } | |
5753 | else | |
5754 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
5755 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); | |
5756 | if (i.op[0].imms->X_op != O_constant) | |
5757 | as_bad (_("can't handle non absolute segment in `%s'"), | |
5758 | i.tm.name); | |
5759 | md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2); | |
5760 | } | |
a217f122 | 5761 | |
29b0f896 | 5762 | static void |
e3bb37b5 | 5763 | output_insn (void) |
29b0f896 | 5764 | { |
2bbd9c25 JJ |
5765 | fragS *insn_start_frag; |
5766 | offsetT insn_start_off; | |
5767 | ||
29b0f896 AM |
5768 | /* Tie dwarf2 debug info to the address at the start of the insn. |
5769 | We can't do this after the insn has been output as the current | |
5770 | frag may have been closed off. eg. by frag_var. */ | |
5771 | dwarf2_emit_insn (0); | |
5772 | ||
2bbd9c25 JJ |
5773 | insn_start_frag = frag_now; |
5774 | insn_start_off = frag_now_fix (); | |
5775 | ||
29b0f896 | 5776 | /* Output jumps. */ |
40fb9820 | 5777 | if (i.tm.opcode_modifier.jump) |
29b0f896 | 5778 | output_branch (); |
40fb9820 L |
5779 | else if (i.tm.opcode_modifier.jumpbyte |
5780 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 | 5781 | output_jump (); |
40fb9820 | 5782 | else if (i.tm.opcode_modifier.jumpintersegment) |
29b0f896 AM |
5783 | output_interseg_jump (); |
5784 | else | |
5785 | { | |
5786 | /* Output normal instructions here. */ | |
5787 | char *p; | |
5788 | unsigned char *q; | |
47465058 | 5789 | unsigned int j; |
331d2d0d | 5790 | unsigned int prefix; |
4dffcebc | 5791 | |
c0f3af97 L |
5792 | /* Since the VEX prefix contains the implicit prefix, we don't |
5793 | need the explicit prefix. */ | |
5794 | if (!i.tm.opcode_modifier.vex) | |
bc4bd9ab | 5795 | { |
c0f3af97 | 5796 | switch (i.tm.opcode_length) |
bc4bd9ab | 5797 | { |
c0f3af97 L |
5798 | case 3: |
5799 | if (i.tm.base_opcode & 0xff000000) | |
4dffcebc | 5800 | { |
c0f3af97 L |
5801 | prefix = (i.tm.base_opcode >> 24) & 0xff; |
5802 | goto check_prefix; | |
5803 | } | |
5804 | break; | |
5805 | case 2: | |
5806 | if ((i.tm.base_opcode & 0xff0000) != 0) | |
5807 | { | |
5808 | prefix = (i.tm.base_opcode >> 16) & 0xff; | |
5809 | if (i.tm.cpu_flags.bitfield.cpupadlock) | |
5810 | { | |
4dffcebc | 5811 | check_prefix: |
c0f3af97 L |
5812 | if (prefix != REPE_PREFIX_OPCODE |
5813 | || (i.prefix[LOCKREP_PREFIX] | |
5814 | != REPE_PREFIX_OPCODE)) | |
5815 | add_prefix (prefix); | |
5816 | } | |
5817 | else | |
4dffcebc L |
5818 | add_prefix (prefix); |
5819 | } | |
c0f3af97 L |
5820 | break; |
5821 | case 1: | |
5822 | break; | |
5823 | default: | |
5824 | abort (); | |
bc4bd9ab | 5825 | } |
c0f3af97 L |
5826 | |
5827 | /* The prefix bytes. */ | |
5828 | for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++) | |
5829 | if (*q) | |
5830 | FRAG_APPEND_1_CHAR (*q); | |
0f10071e | 5831 | } |
252b5132 | 5832 | |
c0f3af97 L |
5833 | if (i.tm.opcode_modifier.vex) |
5834 | { | |
5835 | for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++) | |
5836 | if (*q) | |
5837 | switch (j) | |
5838 | { | |
5839 | case REX_PREFIX: | |
5840 | /* REX byte is encoded in VEX prefix. */ | |
5841 | break; | |
5842 | case SEG_PREFIX: | |
5843 | case ADDR_PREFIX: | |
5844 | FRAG_APPEND_1_CHAR (*q); | |
5845 | break; | |
5846 | default: | |
5847 | /* There should be no other prefixes for instructions | |
5848 | with VEX prefix. */ | |
5849 | abort (); | |
5850 | } | |
5851 | ||
5852 | /* Now the VEX prefix. */ | |
5853 | p = frag_more (i.vex.length); | |
5854 | for (j = 0; j < i.vex.length; j++) | |
5855 | p[j] = i.vex.bytes[j]; | |
5856 | } | |
252b5132 | 5857 | |
29b0f896 | 5858 | /* Now the opcode; be careful about word order here! */ |
4dffcebc | 5859 | if (i.tm.opcode_length == 1) |
29b0f896 AM |
5860 | { |
5861 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
5862 | } | |
5863 | else | |
5864 | { | |
4dffcebc | 5865 | switch (i.tm.opcode_length) |
331d2d0d | 5866 | { |
4dffcebc | 5867 | case 3: |
331d2d0d L |
5868 | p = frag_more (3); |
5869 | *p++ = (i.tm.base_opcode >> 16) & 0xff; | |
4dffcebc L |
5870 | break; |
5871 | case 2: | |
5872 | p = frag_more (2); | |
5873 | break; | |
5874 | default: | |
5875 | abort (); | |
5876 | break; | |
331d2d0d | 5877 | } |
0f10071e | 5878 | |
29b0f896 AM |
5879 | /* Put out high byte first: can't use md_number_to_chars! */ |
5880 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
5881 | *p = i.tm.base_opcode & 0xff; | |
85f10a01 MM |
5882 | |
5883 | /* On SSE5, encode the OC1 bit in the DREX field if this | |
5884 | encoding has multiple formats. */ | |
5885 | if (i.tm.opcode_modifier.drex | |
5886 | && i.tm.opcode_modifier.drexv | |
5887 | && DREX_OC1 (i.tm.extension_opcode)) | |
5888 | *p |= DREX_OC1_MASK; | |
29b0f896 | 5889 | } |
3e73aa7c | 5890 | |
29b0f896 | 5891 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 5892 | if (i.tm.opcode_modifier.modrm) |
29b0f896 | 5893 | { |
4a3523fa L |
5894 | FRAG_APPEND_1_CHAR ((i.rm.regmem << 0 |
5895 | | i.rm.reg << 3 | |
5896 | | i.rm.mode << 6)); | |
29b0f896 AM |
5897 | /* If i.rm.regmem == ESP (4) |
5898 | && i.rm.mode != (Register mode) | |
5899 | && not 16 bit | |
5900 | ==> need second modrm byte. */ | |
5901 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
5902 | && i.rm.mode != 3 | |
40fb9820 | 5903 | && !(i.base_reg && i.base_reg->reg_type.bitfield.reg16)) |
4a3523fa L |
5904 | FRAG_APPEND_1_CHAR ((i.sib.base << 0 |
5905 | | i.sib.index << 3 | |
5906 | | i.sib.scale << 6)); | |
29b0f896 | 5907 | } |
3e73aa7c | 5908 | |
85f10a01 MM |
5909 | /* Write the DREX byte if needed. */ |
5910 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
5911 | { | |
5912 | p = frag_more (1); | |
5913 | *p = (((i.drex.reg & 0xf) << 4) | (i.drex.rex & 0x7)); | |
5914 | ||
5915 | /* Encode the OC0 bit if this encoding has multiple | |
5916 | formats. */ | |
5917 | if ((i.tm.opcode_modifier.drex | |
5918 | || i.tm.opcode_modifier.drexv) | |
5919 | && DREX_OC0 (i.tm.extension_opcode)) | |
5920 | *p |= DREX_OC0_MASK; | |
5921 | } | |
5922 | ||
29b0f896 | 5923 | if (i.disp_operands) |
2bbd9c25 | 5924 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 5925 | |
29b0f896 | 5926 | if (i.imm_operands) |
2bbd9c25 | 5927 | output_imm (insn_start_frag, insn_start_off); |
29b0f896 | 5928 | } |
252b5132 | 5929 | |
29b0f896 AM |
5930 | #ifdef DEBUG386 |
5931 | if (flag_debug) | |
5932 | { | |
7b81dfbb | 5933 | pi ("" /*line*/, &i); |
29b0f896 AM |
5934 | } |
5935 | #endif /* DEBUG386 */ | |
5936 | } | |
252b5132 | 5937 | |
e205caa7 L |
5938 | /* Return the size of the displacement operand N. */ |
5939 | ||
5940 | static int | |
5941 | disp_size (unsigned int n) | |
5942 | { | |
5943 | int size = 4; | |
40fb9820 L |
5944 | if (i.types[n].bitfield.disp64) |
5945 | size = 8; | |
5946 | else if (i.types[n].bitfield.disp8) | |
5947 | size = 1; | |
5948 | else if (i.types[n].bitfield.disp16) | |
5949 | size = 2; | |
e205caa7 L |
5950 | return size; |
5951 | } | |
5952 | ||
5953 | /* Return the size of the immediate operand N. */ | |
5954 | ||
5955 | static int | |
5956 | imm_size (unsigned int n) | |
5957 | { | |
5958 | int size = 4; | |
40fb9820 L |
5959 | if (i.types[n].bitfield.imm64) |
5960 | size = 8; | |
5961 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
5962 | size = 1; | |
5963 | else if (i.types[n].bitfield.imm16) | |
5964 | size = 2; | |
e205caa7 L |
5965 | return size; |
5966 | } | |
5967 | ||
29b0f896 | 5968 | static void |
64e74474 | 5969 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
5970 | { |
5971 | char *p; | |
5972 | unsigned int n; | |
252b5132 | 5973 | |
29b0f896 AM |
5974 | for (n = 0; n < i.operands; n++) |
5975 | { | |
40fb9820 | 5976 | if (operand_type_check (i.types[n], disp)) |
29b0f896 AM |
5977 | { |
5978 | if (i.op[n].disps->X_op == O_constant) | |
5979 | { | |
e205caa7 | 5980 | int size = disp_size (n); |
29b0f896 | 5981 | offsetT val; |
252b5132 | 5982 | |
29b0f896 AM |
5983 | val = offset_in_range (i.op[n].disps->X_add_number, |
5984 | size); | |
5985 | p = frag_more (size); | |
5986 | md_number_to_chars (p, val, size); | |
5987 | } | |
5988 | else | |
5989 | { | |
f86103b7 | 5990 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 5991 | int size = disp_size (n); |
40fb9820 | 5992 | int sign = i.types[n].bitfield.disp32s; |
29b0f896 AM |
5993 | int pcrel = (i.flags[n] & Operand_PCrel) != 0; |
5994 | ||
e205caa7 | 5995 | /* We can't have 8 bit displacement here. */ |
40fb9820 | 5996 | assert (!i.types[n].bitfield.disp8); |
e205caa7 | 5997 | |
29b0f896 AM |
5998 | /* The PC relative address is computed relative |
5999 | to the instruction boundary, so in case immediate | |
6000 | fields follows, we need to adjust the value. */ | |
6001 | if (pcrel && i.imm_operands) | |
6002 | { | |
29b0f896 | 6003 | unsigned int n1; |
e205caa7 | 6004 | int sz = 0; |
252b5132 | 6005 | |
29b0f896 | 6006 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 6007 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 6008 | { |
e205caa7 L |
6009 | /* Only one immediate is allowed for PC |
6010 | relative address. */ | |
6011 | assert (sz == 0); | |
6012 | sz = imm_size (n1); | |
6013 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 6014 | } |
29b0f896 | 6015 | /* We should find the immediate. */ |
e205caa7 | 6016 | assert (sz != 0); |
29b0f896 | 6017 | } |
520dc8e8 | 6018 | |
29b0f896 | 6019 | p = frag_more (size); |
2bbd9c25 | 6020 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 6021 | if (GOT_symbol |
2bbd9c25 | 6022 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 6023 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
6024 | || reloc_type == BFD_RELOC_X86_64_32S |
6025 | || (reloc_type == BFD_RELOC_64 | |
6026 | && object_64bit)) | |
d6ab8113 JB |
6027 | && (i.op[n].disps->X_op == O_symbol |
6028 | || (i.op[n].disps->X_op == O_add | |
6029 | && ((symbol_get_value_expression | |
6030 | (i.op[n].disps->X_op_symbol)->X_op) | |
6031 | == O_subtract)))) | |
6032 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 JJ |
6033 | { |
6034 | offsetT add; | |
6035 | ||
6036 | if (insn_start_frag == frag_now) | |
6037 | add = (p - frag_now->fr_literal) - insn_start_off; | |
6038 | else | |
6039 | { | |
6040 | fragS *fr; | |
6041 | ||
6042 | add = insn_start_frag->fr_fix - insn_start_off; | |
6043 | for (fr = insn_start_frag->fr_next; | |
6044 | fr && fr != frag_now; fr = fr->fr_next) | |
6045 | add += fr->fr_fix; | |
6046 | add += p - frag_now->fr_literal; | |
6047 | } | |
6048 | ||
4fa24527 | 6049 | if (!object_64bit) |
7b81dfbb AJ |
6050 | { |
6051 | reloc_type = BFD_RELOC_386_GOTPC; | |
6052 | i.op[n].imms->X_add_number += add; | |
6053 | } | |
6054 | else if (reloc_type == BFD_RELOC_64) | |
6055 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 6056 | else |
7b81dfbb AJ |
6057 | /* Don't do the adjustment for x86-64, as there |
6058 | the pcrel addressing is relative to the _next_ | |
6059 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 6060 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 6061 | } |
062cd5e7 | 6062 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
2bbd9c25 | 6063 | i.op[n].disps, pcrel, reloc_type); |
29b0f896 AM |
6064 | } |
6065 | } | |
6066 | } | |
6067 | } | |
252b5132 | 6068 | |
29b0f896 | 6069 | static void |
64e74474 | 6070 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
6071 | { |
6072 | char *p; | |
6073 | unsigned int n; | |
252b5132 | 6074 | |
29b0f896 AM |
6075 | for (n = 0; n < i.operands; n++) |
6076 | { | |
40fb9820 | 6077 | if (operand_type_check (i.types[n], imm)) |
29b0f896 AM |
6078 | { |
6079 | if (i.op[n].imms->X_op == O_constant) | |
6080 | { | |
e205caa7 | 6081 | int size = imm_size (n); |
29b0f896 | 6082 | offsetT val; |
b4cac588 | 6083 | |
29b0f896 AM |
6084 | val = offset_in_range (i.op[n].imms->X_add_number, |
6085 | size); | |
6086 | p = frag_more (size); | |
6087 | md_number_to_chars (p, val, size); | |
6088 | } | |
6089 | else | |
6090 | { | |
6091 | /* Not absolute_section. | |
6092 | Need a 32-bit fixup (don't support 8bit | |
6093 | non-absolute imms). Try to support other | |
6094 | sizes ... */ | |
f86103b7 | 6095 | enum bfd_reloc_code_real reloc_type; |
e205caa7 L |
6096 | int size = imm_size (n); |
6097 | int sign; | |
29b0f896 | 6098 | |
40fb9820 | 6099 | if (i.types[n].bitfield.imm32s |
a7d61044 | 6100 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 6101 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 6102 | sign = 1; |
e205caa7 L |
6103 | else |
6104 | sign = 0; | |
520dc8e8 | 6105 | |
29b0f896 AM |
6106 | p = frag_more (size); |
6107 | reloc_type = reloc (size, 0, sign, i.reloc[n]); | |
f86103b7 | 6108 | |
2bbd9c25 JJ |
6109 | /* This is tough to explain. We end up with this one if we |
6110 | * have operands that look like | |
6111 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
6112 | * obtain the absolute address of the GOT, and it is strongly | |
6113 | * preferable from a performance point of view to avoid using | |
6114 | * a runtime relocation for this. The actual sequence of | |
6115 | * instructions often look something like: | |
6116 | * | |
6117 | * call .L66 | |
6118 | * .L66: | |
6119 | * popl %ebx | |
6120 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
6121 | * | |
6122 | * The call and pop essentially return the absolute address | |
6123 | * of the label .L66 and store it in %ebx. The linker itself | |
6124 | * will ultimately change the first operand of the addl so | |
6125 | * that %ebx points to the GOT, but to keep things simple, the | |
6126 | * .o file must have this operand set so that it generates not | |
6127 | * the absolute address of .L66, but the absolute address of | |
6128 | * itself. This allows the linker itself simply treat a GOTPC | |
6129 | * relocation as asking for a pcrel offset to the GOT to be | |
6130 | * added in, and the addend of the relocation is stored in the | |
6131 | * operand field for the instruction itself. | |
6132 | * | |
6133 | * Our job here is to fix the operand so that it would add | |
6134 | * the correct offset so that %ebx would point to itself. The | |
6135 | * thing that is tricky is that .-.L66 will point to the | |
6136 | * beginning of the instruction, so we need to further modify | |
6137 | * the operand so that it will point to itself. There are | |
6138 | * other cases where you have something like: | |
6139 | * | |
6140 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
6141 | * | |
6142 | * and here no correction would be required. Internally in | |
6143 | * the assembler we treat operands of this form as not being | |
6144 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
6145 | * whether it would simplify matters to do it this way. Who | |
6146 | * knows. In earlier versions of the PIC patches, the | |
6147 | * pcrel_adjust field was used to store the correction, but | |
6148 | * since the expression is not pcrel, I felt it would be | |
6149 | * confusing to do it this way. */ | |
6150 | ||
d6ab8113 | 6151 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
6152 | || reloc_type == BFD_RELOC_X86_64_32S |
6153 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
6154 | && GOT_symbol |
6155 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
6156 | && (i.op[n].imms->X_op == O_symbol | |
6157 | || (i.op[n].imms->X_op == O_add | |
6158 | && ((symbol_get_value_expression | |
6159 | (i.op[n].imms->X_op_symbol)->X_op) | |
6160 | == O_subtract)))) | |
6161 | { | |
2bbd9c25 JJ |
6162 | offsetT add; |
6163 | ||
6164 | if (insn_start_frag == frag_now) | |
6165 | add = (p - frag_now->fr_literal) - insn_start_off; | |
6166 | else | |
6167 | { | |
6168 | fragS *fr; | |
6169 | ||
6170 | add = insn_start_frag->fr_fix - insn_start_off; | |
6171 | for (fr = insn_start_frag->fr_next; | |
6172 | fr && fr != frag_now; fr = fr->fr_next) | |
6173 | add += fr->fr_fix; | |
6174 | add += p - frag_now->fr_literal; | |
6175 | } | |
6176 | ||
4fa24527 | 6177 | if (!object_64bit) |
d6ab8113 | 6178 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 6179 | else if (size == 4) |
d6ab8113 | 6180 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
6181 | else if (size == 8) |
6182 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
2bbd9c25 | 6183 | i.op[n].imms->X_add_number += add; |
29b0f896 | 6184 | } |
29b0f896 AM |
6185 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
6186 | i.op[n].imms, 0, reloc_type); | |
6187 | } | |
6188 | } | |
6189 | } | |
252b5132 RH |
6190 | } |
6191 | \f | |
d182319b JB |
6192 | /* x86_cons_fix_new is called via the expression parsing code when a |
6193 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
6194 | static enum bfd_reloc_code_real got_reloc = NO_RELOC; | |
6195 | static int cons_sign = -1; | |
6196 | ||
6197 | void | |
e3bb37b5 | 6198 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
64e74474 | 6199 | expressionS *exp) |
d182319b JB |
6200 | { |
6201 | enum bfd_reloc_code_real r = reloc (len, 0, cons_sign, got_reloc); | |
6202 | ||
6203 | got_reloc = NO_RELOC; | |
6204 | ||
6205 | #ifdef TE_PE | |
6206 | if (exp->X_op == O_secrel) | |
6207 | { | |
6208 | exp->X_op = O_symbol; | |
6209 | r = BFD_RELOC_32_SECREL; | |
6210 | } | |
6211 | #endif | |
6212 | ||
6213 | fix_new_exp (frag, off, len, exp, 0, r); | |
6214 | } | |
6215 | ||
718ddfc0 JB |
6216 | #if (!defined (OBJ_ELF) && !defined (OBJ_MAYBE_ELF)) || defined (LEX_AT) |
6217 | # define lex_got(reloc, adjust, types) NULL | |
6218 | #else | |
f3c180ae AM |
6219 | /* Parse operands of the form |
6220 | <symbol>@GOTOFF+<nnn> | |
6221 | and similar .plt or .got references. | |
6222 | ||
6223 | If we find one, set up the correct relocation in RELOC and copy the | |
6224 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
6225 | parsing by the calling routine. Return this buffer, and if ADJUST | |
6226 | is non-null set it to the length of the string we removed from the | |
6227 | input line. Otherwise return NULL. */ | |
6228 | static char * | |
3956db08 | 6229 | lex_got (enum bfd_reloc_code_real *reloc, |
64e74474 | 6230 | int *adjust, |
40fb9820 | 6231 | i386_operand_type *types) |
f3c180ae | 6232 | { |
7b81dfbb AJ |
6233 | /* Some of the relocations depend on the size of what field is to |
6234 | be relocated. But in our callers i386_immediate and i386_displacement | |
6235 | we don't yet know the operand size (this will be set by insn | |
6236 | matching). Hence we record the word32 relocation here, | |
6237 | and adjust the reloc according to the real size in reloc(). */ | |
f3c180ae AM |
6238 | static const struct { |
6239 | const char *str; | |
4fa24527 | 6240 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 6241 | const i386_operand_type types64; |
f3c180ae | 6242 | } gotrel[] = { |
4eed87de AM |
6243 | { "PLTOFF", { 0, |
6244 | BFD_RELOC_X86_64_PLTOFF64 }, | |
40fb9820 | 6245 | OPERAND_TYPE_IMM64 }, |
4eed87de AM |
6246 | { "PLT", { BFD_RELOC_386_PLT32, |
6247 | BFD_RELOC_X86_64_PLT32 }, | |
40fb9820 | 6248 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6249 | { "GOTPLT", { 0, |
6250 | BFD_RELOC_X86_64_GOTPLT64 }, | |
40fb9820 | 6251 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
6252 | { "GOTOFF", { BFD_RELOC_386_GOTOFF, |
6253 | BFD_RELOC_X86_64_GOTOFF64 }, | |
40fb9820 | 6254 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
6255 | { "GOTPCREL", { 0, |
6256 | BFD_RELOC_X86_64_GOTPCREL }, | |
40fb9820 | 6257 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6258 | { "TLSGD", { BFD_RELOC_386_TLS_GD, |
6259 | BFD_RELOC_X86_64_TLSGD }, | |
40fb9820 | 6260 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6261 | { "TLSLDM", { BFD_RELOC_386_TLS_LDM, |
6262 | 0 }, | |
40fb9820 | 6263 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6264 | { "TLSLD", { 0, |
6265 | BFD_RELOC_X86_64_TLSLD }, | |
40fb9820 | 6266 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6267 | { "GOTTPOFF", { BFD_RELOC_386_TLS_IE_32, |
6268 | BFD_RELOC_X86_64_GOTTPOFF }, | |
40fb9820 | 6269 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6270 | { "TPOFF", { BFD_RELOC_386_TLS_LE_32, |
6271 | BFD_RELOC_X86_64_TPOFF32 }, | |
40fb9820 | 6272 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, |
4eed87de AM |
6273 | { "NTPOFF", { BFD_RELOC_386_TLS_LE, |
6274 | 0 }, | |
40fb9820 | 6275 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6276 | { "DTPOFF", { BFD_RELOC_386_TLS_LDO_32, |
6277 | BFD_RELOC_X86_64_DTPOFF32 }, | |
40fb9820 L |
6278 | |
6279 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, | |
4eed87de AM |
6280 | { "GOTNTPOFF",{ BFD_RELOC_386_TLS_GOTIE, |
6281 | 0 }, | |
40fb9820 | 6282 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6283 | { "INDNTPOFF",{ BFD_RELOC_386_TLS_IE, |
6284 | 0 }, | |
40fb9820 | 6285 | OPERAND_TYPE_NONE }, |
4eed87de AM |
6286 | { "GOT", { BFD_RELOC_386_GOT32, |
6287 | BFD_RELOC_X86_64_GOT32 }, | |
40fb9820 | 6288 | OPERAND_TYPE_IMM32_32S_64_DISP32 }, |
4eed87de AM |
6289 | { "TLSDESC", { BFD_RELOC_386_TLS_GOTDESC, |
6290 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
40fb9820 | 6291 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
6292 | { "TLSCALL", { BFD_RELOC_386_TLS_DESC_CALL, |
6293 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
40fb9820 | 6294 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
f3c180ae AM |
6295 | }; |
6296 | char *cp; | |
6297 | unsigned int j; | |
6298 | ||
718ddfc0 JB |
6299 | if (!IS_ELF) |
6300 | return NULL; | |
6301 | ||
f3c180ae | 6302 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 6303 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
6304 | return NULL; |
6305 | ||
47465058 | 6306 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) |
f3c180ae AM |
6307 | { |
6308 | int len; | |
6309 | ||
6310 | len = strlen (gotrel[j].str); | |
28f81592 | 6311 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 6312 | { |
4fa24527 | 6313 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 6314 | { |
28f81592 AM |
6315 | int first, second; |
6316 | char *tmpbuf, *past_reloc; | |
f3c180ae | 6317 | |
4fa24527 | 6318 | *reloc = gotrel[j].rel[object_64bit]; |
28f81592 AM |
6319 | if (adjust) |
6320 | *adjust = len; | |
f3c180ae | 6321 | |
3956db08 JB |
6322 | if (types) |
6323 | { | |
6324 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
6325 | { |
6326 | types->bitfield.imm32 = 1; | |
6327 | types->bitfield.disp32 = 1; | |
6328 | } | |
3956db08 JB |
6329 | else |
6330 | *types = gotrel[j].types64; | |
6331 | } | |
6332 | ||
f3c180ae AM |
6333 | if (GOT_symbol == NULL) |
6334 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
6335 | ||
28f81592 | 6336 | /* The length of the first part of our input line. */ |
f3c180ae | 6337 | first = cp - input_line_pointer; |
28f81592 AM |
6338 | |
6339 | /* The second part goes from after the reloc token until | |
67c11a9b | 6340 | (and including) an end_of_line char or comma. */ |
28f81592 | 6341 | past_reloc = cp + 1 + len; |
67c11a9b AM |
6342 | cp = past_reloc; |
6343 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
6344 | ++cp; | |
6345 | second = cp + 1 - past_reloc; | |
28f81592 AM |
6346 | |
6347 | /* Allocate and copy string. The trailing NUL shouldn't | |
6348 | be necessary, but be safe. */ | |
6349 | tmpbuf = xmalloc (first + second + 2); | |
f3c180ae | 6350 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
6351 | if (second != 0 && *past_reloc != ' ') |
6352 | /* Replace the relocation token with ' ', so that | |
6353 | errors like foo@GOTOFF1 will be detected. */ | |
6354 | tmpbuf[first++] = ' '; | |
6355 | memcpy (tmpbuf + first, past_reloc, second); | |
6356 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
6357 | return tmpbuf; |
6358 | } | |
6359 | ||
4fa24527 JB |
6360 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
6361 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
6362 | return NULL; |
6363 | } | |
6364 | } | |
6365 | ||
6366 | /* Might be a symbol version string. Don't as_bad here. */ | |
6367 | return NULL; | |
6368 | } | |
6369 | ||
f3c180ae | 6370 | void |
e3bb37b5 | 6371 | x86_cons (expressionS *exp, int size) |
f3c180ae | 6372 | { |
4fa24527 | 6373 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
6374 | { |
6375 | /* Handle @GOTOFF and the like in an expression. */ | |
6376 | char *save; | |
6377 | char *gotfree_input_line; | |
6378 | int adjust; | |
6379 | ||
6380 | save = input_line_pointer; | |
3956db08 | 6381 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
6382 | if (gotfree_input_line) |
6383 | input_line_pointer = gotfree_input_line; | |
6384 | ||
6385 | expression (exp); | |
6386 | ||
6387 | if (gotfree_input_line) | |
6388 | { | |
6389 | /* expression () has merrily parsed up to the end of line, | |
6390 | or a comma - in the wrong buffer. Transfer how far | |
6391 | input_line_pointer has moved to the right buffer. */ | |
6392 | input_line_pointer = (save | |
6393 | + (input_line_pointer - gotfree_input_line) | |
6394 | + adjust); | |
6395 | free (gotfree_input_line); | |
3992d3b7 AM |
6396 | if (exp->X_op == O_constant |
6397 | || exp->X_op == O_absent | |
6398 | || exp->X_op == O_illegal | |
6399 | || exp->X_op == O_register | |
6400 | || exp->X_op == O_big) | |
6401 | { | |
6402 | char c = *input_line_pointer; | |
6403 | *input_line_pointer = 0; | |
6404 | as_bad (_("missing or invalid expression `%s'"), save); | |
6405 | *input_line_pointer = c; | |
6406 | } | |
f3c180ae AM |
6407 | } |
6408 | } | |
6409 | else | |
6410 | expression (exp); | |
6411 | } | |
6412 | #endif | |
6413 | ||
d182319b | 6414 | static void signed_cons (int size) |
6482c264 | 6415 | { |
d182319b JB |
6416 | if (flag_code == CODE_64BIT) |
6417 | cons_sign = 1; | |
6418 | cons (size); | |
6419 | cons_sign = -1; | |
6482c264 NC |
6420 | } |
6421 | ||
d182319b | 6422 | #ifdef TE_PE |
6482c264 NC |
6423 | static void |
6424 | pe_directive_secrel (dummy) | |
6425 | int dummy ATTRIBUTE_UNUSED; | |
6426 | { | |
6427 | expressionS exp; | |
6428 | ||
6429 | do | |
6430 | { | |
6431 | expression (&exp); | |
6432 | if (exp.X_op == O_symbol) | |
6433 | exp.X_op = O_secrel; | |
6434 | ||
6435 | emit_expr (&exp, 4); | |
6436 | } | |
6437 | while (*input_line_pointer++ == ','); | |
6438 | ||
6439 | input_line_pointer--; | |
6440 | demand_empty_rest_of_line (); | |
6441 | } | |
6482c264 NC |
6442 | #endif |
6443 | ||
252b5132 | 6444 | static int |
70e41ade | 6445 | i386_immediate (char *imm_start) |
252b5132 RH |
6446 | { |
6447 | char *save_input_line_pointer; | |
f3c180ae | 6448 | char *gotfree_input_line; |
252b5132 | 6449 | segT exp_seg = 0; |
47926f60 | 6450 | expressionS *exp; |
40fb9820 L |
6451 | i386_operand_type types; |
6452 | ||
0dfbf9d7 | 6453 | operand_type_set (&types, ~0); |
252b5132 RH |
6454 | |
6455 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
6456 | { | |
31b2323c L |
6457 | as_bad (_("at most %d immediate operands are allowed"), |
6458 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
6459 | return 0; |
6460 | } | |
6461 | ||
6462 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 6463 | i.op[this_operand].imms = exp; |
252b5132 RH |
6464 | |
6465 | if (is_space_char (*imm_start)) | |
6466 | ++imm_start; | |
6467 | ||
6468 | save_input_line_pointer = input_line_pointer; | |
6469 | input_line_pointer = imm_start; | |
6470 | ||
3956db08 | 6471 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
6472 | if (gotfree_input_line) |
6473 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
6474 | |
6475 | exp_seg = expression (exp); | |
6476 | ||
83183c0c | 6477 | SKIP_WHITESPACE (); |
252b5132 | 6478 | if (*input_line_pointer) |
f3c180ae | 6479 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
6480 | |
6481 | input_line_pointer = save_input_line_pointer; | |
f3c180ae AM |
6482 | if (gotfree_input_line) |
6483 | free (gotfree_input_line); | |
252b5132 | 6484 | |
3992d3b7 AM |
6485 | if (exp->X_op == O_absent |
6486 | || exp->X_op == O_illegal | |
6487 | || exp->X_op == O_big | |
6488 | || (gotfree_input_line | |
6489 | && (exp->X_op == O_constant | |
6490 | || exp->X_op == O_register))) | |
252b5132 | 6491 | { |
3992d3b7 | 6492 | as_bad (_("missing or invalid immediate expression `%s'"), |
24eab124 | 6493 | imm_start); |
3992d3b7 | 6494 | return 0; |
252b5132 | 6495 | } |
3e73aa7c | 6496 | else if (exp->X_op == O_constant) |
252b5132 | 6497 | { |
47926f60 | 6498 | /* Size it properly later. */ |
40fb9820 | 6499 | i.types[this_operand].bitfield.imm64 = 1; |
3e73aa7c | 6500 | /* If BFD64, sign extend val. */ |
4eed87de AM |
6501 | if (!use_rela_relocations |
6502 | && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0) | |
6503 | exp->X_add_number | |
6504 | = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
252b5132 | 6505 | } |
4c63da97 | 6506 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 6507 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 6508 | && exp_seg != absolute_section |
47926f60 | 6509 | && exp_seg != text_section |
24eab124 AM |
6510 | && exp_seg != data_section |
6511 | && exp_seg != bss_section | |
6512 | && exp_seg != undefined_section | |
f86103b7 | 6513 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 6514 | { |
d0b47220 | 6515 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
6516 | return 0; |
6517 | } | |
6518 | #endif | |
bb8f5920 L |
6519 | else if (!intel_syntax && exp->X_op == O_register) |
6520 | { | |
6521 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
6522 | return 0; | |
6523 | } | |
252b5132 RH |
6524 | else |
6525 | { | |
6526 | /* This is an address. The size of the address will be | |
24eab124 | 6527 | determined later, depending on destination register, |
3e73aa7c | 6528 | suffix, or the default for the section. */ |
40fb9820 L |
6529 | i.types[this_operand].bitfield.imm8 = 1; |
6530 | i.types[this_operand].bitfield.imm16 = 1; | |
6531 | i.types[this_operand].bitfield.imm32 = 1; | |
6532 | i.types[this_operand].bitfield.imm32s = 1; | |
6533 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
6534 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
6535 | types); | |
252b5132 RH |
6536 | } |
6537 | ||
6538 | return 1; | |
6539 | } | |
6540 | ||
551c1ca1 | 6541 | static char * |
e3bb37b5 | 6542 | i386_scale (char *scale) |
252b5132 | 6543 | { |
551c1ca1 AM |
6544 | offsetT val; |
6545 | char *save = input_line_pointer; | |
252b5132 | 6546 | |
551c1ca1 AM |
6547 | input_line_pointer = scale; |
6548 | val = get_absolute_expression (); | |
6549 | ||
6550 | switch (val) | |
252b5132 | 6551 | { |
551c1ca1 | 6552 | case 1: |
252b5132 RH |
6553 | i.log2_scale_factor = 0; |
6554 | break; | |
551c1ca1 | 6555 | case 2: |
252b5132 RH |
6556 | i.log2_scale_factor = 1; |
6557 | break; | |
551c1ca1 | 6558 | case 4: |
252b5132 RH |
6559 | i.log2_scale_factor = 2; |
6560 | break; | |
551c1ca1 | 6561 | case 8: |
252b5132 RH |
6562 | i.log2_scale_factor = 3; |
6563 | break; | |
6564 | default: | |
a724f0f4 JB |
6565 | { |
6566 | char sep = *input_line_pointer; | |
6567 | ||
6568 | *input_line_pointer = '\0'; | |
6569 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
6570 | scale); | |
6571 | *input_line_pointer = sep; | |
6572 | input_line_pointer = save; | |
6573 | return NULL; | |
6574 | } | |
252b5132 | 6575 | } |
29b0f896 | 6576 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
6577 | { |
6578 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 6579 | 1 << i.log2_scale_factor); |
252b5132 | 6580 | i.log2_scale_factor = 0; |
252b5132 | 6581 | } |
551c1ca1 AM |
6582 | scale = input_line_pointer; |
6583 | input_line_pointer = save; | |
6584 | return scale; | |
252b5132 RH |
6585 | } |
6586 | ||
252b5132 | 6587 | static int |
e3bb37b5 | 6588 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 6589 | { |
29b0f896 | 6590 | expressionS *exp; |
252b5132 RH |
6591 | segT exp_seg = 0; |
6592 | char *save_input_line_pointer; | |
f3c180ae | 6593 | char *gotfree_input_line; |
40fb9820 L |
6594 | int override; |
6595 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 6596 | int ret; |
252b5132 | 6597 | |
31b2323c L |
6598 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
6599 | { | |
6600 | as_bad (_("at most %d displacement operands are allowed"), | |
6601 | MAX_MEMORY_OPERANDS); | |
6602 | return 0; | |
6603 | } | |
6604 | ||
0dfbf9d7 | 6605 | operand_type_set (&bigdisp, 0); |
40fb9820 L |
6606 | if ((i.types[this_operand].bitfield.jumpabsolute) |
6607 | || (!current_templates->start->opcode_modifier.jump | |
6608 | && !current_templates->start->opcode_modifier.jumpdword)) | |
e05278af | 6609 | { |
40fb9820 | 6610 | bigdisp.bitfield.disp32 = 1; |
e05278af | 6611 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
6612 | if (flag_code == CODE_64BIT) |
6613 | { | |
6614 | if (!override) | |
6615 | { | |
6616 | bigdisp.bitfield.disp32s = 1; | |
6617 | bigdisp.bitfield.disp64 = 1; | |
6618 | } | |
6619 | } | |
6620 | else if ((flag_code == CODE_16BIT) ^ override) | |
6621 | { | |
6622 | bigdisp.bitfield.disp32 = 0; | |
6623 | bigdisp.bitfield.disp16 = 1; | |
6624 | } | |
e05278af JB |
6625 | } |
6626 | else | |
6627 | { | |
6628 | /* For PC-relative branches, the width of the displacement | |
6629 | is dependent upon data size, not address size. */ | |
e05278af | 6630 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
6631 | if (flag_code == CODE_64BIT) |
6632 | { | |
6633 | if (override || i.suffix == WORD_MNEM_SUFFIX) | |
6634 | bigdisp.bitfield.disp16 = 1; | |
6635 | else | |
6636 | { | |
6637 | bigdisp.bitfield.disp32 = 1; | |
6638 | bigdisp.bitfield.disp32s = 1; | |
6639 | } | |
6640 | } | |
6641 | else | |
e05278af JB |
6642 | { |
6643 | if (!override) | |
6644 | override = (i.suffix == (flag_code != CODE_16BIT | |
6645 | ? WORD_MNEM_SUFFIX | |
6646 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
6647 | bigdisp.bitfield.disp32 = 1; |
6648 | if ((flag_code == CODE_16BIT) ^ override) | |
6649 | { | |
6650 | bigdisp.bitfield.disp32 = 0; | |
6651 | bigdisp.bitfield.disp16 = 1; | |
6652 | } | |
e05278af | 6653 | } |
e05278af | 6654 | } |
c6fb90c8 L |
6655 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
6656 | bigdisp); | |
252b5132 RH |
6657 | |
6658 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 6659 | i.op[this_operand].disps = exp; |
252b5132 RH |
6660 | i.disp_operands++; |
6661 | save_input_line_pointer = input_line_pointer; | |
6662 | input_line_pointer = disp_start; | |
6663 | END_STRING_AND_SAVE (disp_end); | |
6664 | ||
6665 | #ifndef GCC_ASM_O_HACK | |
6666 | #define GCC_ASM_O_HACK 0 | |
6667 | #endif | |
6668 | #if GCC_ASM_O_HACK | |
6669 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 6670 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 6671 | && displacement_string_end[-1] == '+') |
252b5132 RH |
6672 | { |
6673 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
6674 | constraint within gcc asm statements. |
6675 | For instance: | |
6676 | ||
6677 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
6678 | __asm__ __volatile__ ( \ | |
6679 | "movw %w2,%0\n\t" \ | |
6680 | "movw %w1,2+%0\n\t" \ | |
6681 | "rorl $16,%1\n\t" \ | |
6682 | "movb %b1,4+%0\n\t" \ | |
6683 | "movb %4,5+%0\n\t" \ | |
6684 | "movb $0,6+%0\n\t" \ | |
6685 | "movb %h1,7+%0\n\t" \ | |
6686 | "rorl $16,%1" \ | |
6687 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
6688 | ||
6689 | This works great except that the output assembler ends | |
6690 | up looking a bit weird if it turns out that there is | |
6691 | no offset. You end up producing code that looks like: | |
6692 | ||
6693 | #APP | |
6694 | movw $235,(%eax) | |
6695 | movw %dx,2+(%eax) | |
6696 | rorl $16,%edx | |
6697 | movb %dl,4+(%eax) | |
6698 | movb $137,5+(%eax) | |
6699 | movb $0,6+(%eax) | |
6700 | movb %dh,7+(%eax) | |
6701 | rorl $16,%edx | |
6702 | #NO_APP | |
6703 | ||
47926f60 | 6704 | So here we provide the missing zero. */ |
24eab124 AM |
6705 | |
6706 | *displacement_string_end = '0'; | |
252b5132 RH |
6707 | } |
6708 | #endif | |
3956db08 | 6709 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
6710 | if (gotfree_input_line) |
6711 | input_line_pointer = gotfree_input_line; | |
252b5132 | 6712 | |
24eab124 | 6713 | exp_seg = expression (exp); |
252b5132 | 6714 | |
636c26b0 AM |
6715 | SKIP_WHITESPACE (); |
6716 | if (*input_line_pointer) | |
6717 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
6718 | #if GCC_ASM_O_HACK | |
6719 | RESTORE_END_STRING (disp_end + 1); | |
6720 | #endif | |
636c26b0 | 6721 | input_line_pointer = save_input_line_pointer; |
636c26b0 AM |
6722 | if (gotfree_input_line) |
6723 | free (gotfree_input_line); | |
3992d3b7 | 6724 | ret = 1; |
636c26b0 | 6725 | |
24eab124 AM |
6726 | /* We do this to make sure that the section symbol is in |
6727 | the symbol table. We will ultimately change the relocation | |
47926f60 | 6728 | to be relative to the beginning of the section. */ |
1ae12ab7 | 6729 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
6730 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
6731 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 6732 | { |
636c26b0 | 6733 | if (exp->X_op != O_symbol) |
3992d3b7 | 6734 | goto inv_disp; |
636c26b0 | 6735 | |
e5cb08ac | 6736 | if (S_IS_LOCAL (exp->X_add_symbol) |
24eab124 AM |
6737 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section) |
6738 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); | |
24eab124 AM |
6739 | exp->X_op = O_subtract; |
6740 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 6741 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 6742 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
6743 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
6744 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 6745 | else |
29b0f896 | 6746 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 6747 | } |
252b5132 | 6748 | |
3992d3b7 AM |
6749 | else if (exp->X_op == O_absent |
6750 | || exp->X_op == O_illegal | |
6751 | || exp->X_op == O_big | |
6752 | || (gotfree_input_line | |
6753 | && (exp->X_op == O_constant | |
6754 | || exp->X_op == O_register))) | |
2daf4fd8 | 6755 | { |
3992d3b7 AM |
6756 | inv_disp: |
6757 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 6758 | disp_start); |
3992d3b7 | 6759 | ret = 0; |
2daf4fd8 AM |
6760 | } |
6761 | ||
4c63da97 | 6762 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
3992d3b7 AM |
6763 | else if (exp->X_op != O_constant |
6764 | && OUTPUT_FLAVOR == bfd_target_aout_flavour | |
6765 | && exp_seg != absolute_section | |
6766 | && exp_seg != text_section | |
6767 | && exp_seg != data_section | |
6768 | && exp_seg != bss_section | |
6769 | && exp_seg != undefined_section | |
6770 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 6771 | { |
d0b47220 | 6772 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 6773 | ret = 0; |
24eab124 | 6774 | } |
252b5132 | 6775 | #endif |
3956db08 | 6776 | |
3992d3b7 AM |
6777 | RESTORE_END_STRING (disp_end); |
6778 | ||
40fb9820 L |
6779 | /* Check if this is a displacement only operand. */ |
6780 | bigdisp = i.types[this_operand]; | |
6781 | bigdisp.bitfield.disp8 = 0; | |
6782 | bigdisp.bitfield.disp16 = 0; | |
6783 | bigdisp.bitfield.disp32 = 0; | |
6784 | bigdisp.bitfield.disp32s = 0; | |
6785 | bigdisp.bitfield.disp64 = 0; | |
0dfbf9d7 | 6786 | if (operand_type_all_zero (&bigdisp)) |
c6fb90c8 L |
6787 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
6788 | types); | |
3956db08 | 6789 | |
3992d3b7 | 6790 | return ret; |
252b5132 RH |
6791 | } |
6792 | ||
eecb386c | 6793 | /* Make sure the memory operand we've been dealt is valid. |
47926f60 KH |
6794 | Return 1 on success, 0 on a failure. */ |
6795 | ||
252b5132 | 6796 | static int |
e3bb37b5 | 6797 | i386_index_check (const char *operand_string) |
252b5132 | 6798 | { |
3e73aa7c | 6799 | int ok; |
24eab124 | 6800 | #if INFER_ADDR_PREFIX |
eecb386c AM |
6801 | int fudged = 0; |
6802 | ||
24eab124 AM |
6803 | tryprefix: |
6804 | #endif | |
3e73aa7c | 6805 | ok = 1; |
75178d9d | 6806 | if (flag_code == CODE_64BIT) |
64e74474 | 6807 | { |
64e74474 | 6808 | if ((i.base_reg |
40fb9820 L |
6809 | && ((i.prefix[ADDR_PREFIX] == 0 |
6810 | && !i.base_reg->reg_type.bitfield.reg64) | |
6811 | || (i.prefix[ADDR_PREFIX] | |
6812 | && !i.base_reg->reg_type.bitfield.reg32)) | |
6813 | && (i.index_reg | |
9a04903e JB |
6814 | || i.base_reg->reg_num != |
6815 | (i.prefix[ADDR_PREFIX] == 0 ? RegRip : RegEip))) | |
64e74474 | 6816 | || (i.index_reg |
40fb9820 L |
6817 | && (!i.index_reg->reg_type.bitfield.baseindex |
6818 | || (i.prefix[ADDR_PREFIX] == 0 | |
db51cc60 L |
6819 | && i.index_reg->reg_num != RegRiz |
6820 | && !i.index_reg->reg_type.bitfield.reg64 | |
6821 | ) | |
40fb9820 | 6822 | || (i.prefix[ADDR_PREFIX] |
db51cc60 | 6823 | && i.index_reg->reg_num != RegEiz |
40fb9820 | 6824 | && !i.index_reg->reg_type.bitfield.reg32)))) |
64e74474 | 6825 | ok = 0; |
3e73aa7c JH |
6826 | } |
6827 | else | |
6828 | { | |
6829 | if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) | |
6830 | { | |
6831 | /* 16bit checks. */ | |
6832 | if ((i.base_reg | |
40fb9820 L |
6833 | && (!i.base_reg->reg_type.bitfield.reg16 |
6834 | || !i.base_reg->reg_type.bitfield.baseindex)) | |
3e73aa7c | 6835 | || (i.index_reg |
40fb9820 L |
6836 | && (!i.index_reg->reg_type.bitfield.reg16 |
6837 | || !i.index_reg->reg_type.bitfield.baseindex | |
29b0f896 AM |
6838 | || !(i.base_reg |
6839 | && i.base_reg->reg_num < 6 | |
6840 | && i.index_reg->reg_num >= 6 | |
6841 | && i.log2_scale_factor == 0)))) | |
3e73aa7c JH |
6842 | ok = 0; |
6843 | } | |
6844 | else | |
e5cb08ac | 6845 | { |
3e73aa7c JH |
6846 | /* 32bit checks. */ |
6847 | if ((i.base_reg | |
40fb9820 | 6848 | && !i.base_reg->reg_type.bitfield.reg32) |
3e73aa7c | 6849 | || (i.index_reg |
db51cc60 L |
6850 | && ((!i.index_reg->reg_type.bitfield.reg32 |
6851 | && i.index_reg->reg_num != RegEiz) | |
40fb9820 | 6852 | || !i.index_reg->reg_type.bitfield.baseindex))) |
e5cb08ac | 6853 | ok = 0; |
3e73aa7c JH |
6854 | } |
6855 | } | |
6856 | if (!ok) | |
24eab124 AM |
6857 | { |
6858 | #if INFER_ADDR_PREFIX | |
20f0a1fc | 6859 | if (i.prefix[ADDR_PREFIX] == 0) |
24eab124 AM |
6860 | { |
6861 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
6862 | i.prefixes += 1; | |
b23bac36 AM |
6863 | /* Change the size of any displacement too. At most one of |
6864 | Disp16 or Disp32 is set. | |
6865 | FIXME. There doesn't seem to be any real need for separate | |
6866 | Disp16 and Disp32 flags. The same goes for Imm16 and Imm32. | |
47926f60 | 6867 | Removing them would probably clean up the code quite a lot. */ |
4eed87de | 6868 | if (flag_code != CODE_64BIT |
40fb9820 L |
6869 | && (i.types[this_operand].bitfield.disp16 |
6870 | || i.types[this_operand].bitfield.disp32)) | |
6871 | i.types[this_operand] | |
c6fb90c8 | 6872 | = operand_type_xor (i.types[this_operand], disp16_32); |
eecb386c | 6873 | fudged = 1; |
24eab124 AM |
6874 | goto tryprefix; |
6875 | } | |
eecb386c AM |
6876 | if (fudged) |
6877 | as_bad (_("`%s' is not a valid base/index expression"), | |
6878 | operand_string); | |
6879 | else | |
c388dee8 | 6880 | #endif |
eecb386c AM |
6881 | as_bad (_("`%s' is not a valid %s bit base/index expression"), |
6882 | operand_string, | |
3e73aa7c | 6883 | flag_code_names[flag_code]); |
24eab124 | 6884 | } |
20f0a1fc | 6885 | return ok; |
24eab124 | 6886 | } |
252b5132 | 6887 | |
252b5132 | 6888 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns non-zero |
47926f60 | 6889 | on error. */ |
252b5132 | 6890 | |
252b5132 | 6891 | static int |
a7619375 | 6892 | i386_att_operand (char *operand_string) |
252b5132 | 6893 | { |
af6bdddf AM |
6894 | const reg_entry *r; |
6895 | char *end_op; | |
24eab124 | 6896 | char *op_string = operand_string; |
252b5132 | 6897 | |
24eab124 | 6898 | if (is_space_char (*op_string)) |
252b5132 RH |
6899 | ++op_string; |
6900 | ||
24eab124 | 6901 | /* We check for an absolute prefix (differentiating, |
47926f60 | 6902 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
6903 | if (*op_string == ABSOLUTE_PREFIX) |
6904 | { | |
6905 | ++op_string; | |
6906 | if (is_space_char (*op_string)) | |
6907 | ++op_string; | |
40fb9820 | 6908 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 | 6909 | } |
252b5132 | 6910 | |
47926f60 | 6911 | /* Check if operand is a register. */ |
4d1bb795 | 6912 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 6913 | { |
40fb9820 L |
6914 | i386_operand_type temp; |
6915 | ||
24eab124 AM |
6916 | /* Check for a segment override by searching for ':' after a |
6917 | segment register. */ | |
6918 | op_string = end_op; | |
6919 | if (is_space_char (*op_string)) | |
6920 | ++op_string; | |
40fb9820 L |
6921 | if (*op_string == ':' |
6922 | && (r->reg_type.bitfield.sreg2 | |
6923 | || r->reg_type.bitfield.sreg3)) | |
24eab124 AM |
6924 | { |
6925 | switch (r->reg_num) | |
6926 | { | |
6927 | case 0: | |
6928 | i.seg[i.mem_operands] = &es; | |
6929 | break; | |
6930 | case 1: | |
6931 | i.seg[i.mem_operands] = &cs; | |
6932 | break; | |
6933 | case 2: | |
6934 | i.seg[i.mem_operands] = &ss; | |
6935 | break; | |
6936 | case 3: | |
6937 | i.seg[i.mem_operands] = &ds; | |
6938 | break; | |
6939 | case 4: | |
6940 | i.seg[i.mem_operands] = &fs; | |
6941 | break; | |
6942 | case 5: | |
6943 | i.seg[i.mem_operands] = &gs; | |
6944 | break; | |
6945 | } | |
252b5132 | 6946 | |
24eab124 | 6947 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
6948 | ++op_string; |
6949 | if (is_space_char (*op_string)) | |
24eab124 | 6950 | ++op_string; |
252b5132 | 6951 | |
24eab124 AM |
6952 | if (!is_digit_char (*op_string) |
6953 | && !is_identifier_char (*op_string) | |
6954 | && *op_string != '(' | |
6955 | && *op_string != ABSOLUTE_PREFIX) | |
6956 | { | |
6957 | as_bad (_("bad memory operand `%s'"), op_string); | |
6958 | return 0; | |
6959 | } | |
47926f60 | 6960 | /* Handle case of %es:*foo. */ |
24eab124 AM |
6961 | if (*op_string == ABSOLUTE_PREFIX) |
6962 | { | |
6963 | ++op_string; | |
6964 | if (is_space_char (*op_string)) | |
6965 | ++op_string; | |
40fb9820 | 6966 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 AM |
6967 | } |
6968 | goto do_memory_reference; | |
6969 | } | |
6970 | if (*op_string) | |
6971 | { | |
d0b47220 | 6972 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
6973 | return 0; |
6974 | } | |
40fb9820 L |
6975 | temp = r->reg_type; |
6976 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
6977 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
6978 | temp); | |
7d5e4556 | 6979 | i.types[this_operand].bitfield.unspecified = 0; |
520dc8e8 | 6980 | i.op[this_operand].regs = r; |
24eab124 AM |
6981 | i.reg_operands++; |
6982 | } | |
af6bdddf AM |
6983 | else if (*op_string == REGISTER_PREFIX) |
6984 | { | |
6985 | as_bad (_("bad register name `%s'"), op_string); | |
6986 | return 0; | |
6987 | } | |
24eab124 | 6988 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 6989 | { |
24eab124 | 6990 | ++op_string; |
40fb9820 | 6991 | if (i.types[this_operand].bitfield.jumpabsolute) |
24eab124 | 6992 | { |
d0b47220 | 6993 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
6994 | return 0; |
6995 | } | |
6996 | if (!i386_immediate (op_string)) | |
6997 | return 0; | |
6998 | } | |
6999 | else if (is_digit_char (*op_string) | |
7000 | || is_identifier_char (*op_string) | |
e5cb08ac | 7001 | || *op_string == '(') |
24eab124 | 7002 | { |
47926f60 | 7003 | /* This is a memory reference of some sort. */ |
af6bdddf | 7004 | char *base_string; |
252b5132 | 7005 | |
47926f60 | 7006 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
7007 | char *displacement_string_start; |
7008 | char *displacement_string_end; | |
252b5132 | 7009 | |
24eab124 | 7010 | do_memory_reference: |
24eab124 | 7011 | if ((i.mem_operands == 1 |
40fb9820 | 7012 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
7013 | || i.mem_operands == 2) |
7014 | { | |
7015 | as_bad (_("too many memory references for `%s'"), | |
7016 | current_templates->start->name); | |
7017 | return 0; | |
7018 | } | |
252b5132 | 7019 | |
24eab124 AM |
7020 | /* Check for base index form. We detect the base index form by |
7021 | looking for an ')' at the end of the operand, searching | |
7022 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
7023 | after the '('. */ | |
af6bdddf | 7024 | base_string = op_string + strlen (op_string); |
c3332e24 | 7025 | |
af6bdddf AM |
7026 | --base_string; |
7027 | if (is_space_char (*base_string)) | |
7028 | --base_string; | |
252b5132 | 7029 | |
47926f60 | 7030 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
7031 | displacement_string_start = op_string; |
7032 | displacement_string_end = base_string + 1; | |
252b5132 | 7033 | |
24eab124 AM |
7034 | if (*base_string == ')') |
7035 | { | |
af6bdddf | 7036 | char *temp_string; |
24eab124 AM |
7037 | unsigned int parens_balanced = 1; |
7038 | /* We've already checked that the number of left & right ()'s are | |
47926f60 | 7039 | equal, so this loop will not be infinite. */ |
24eab124 AM |
7040 | do |
7041 | { | |
7042 | base_string--; | |
7043 | if (*base_string == ')') | |
7044 | parens_balanced++; | |
7045 | if (*base_string == '(') | |
7046 | parens_balanced--; | |
7047 | } | |
7048 | while (parens_balanced); | |
c3332e24 | 7049 | |
af6bdddf | 7050 | temp_string = base_string; |
c3332e24 | 7051 | |
24eab124 | 7052 | /* Skip past '(' and whitespace. */ |
252b5132 RH |
7053 | ++base_string; |
7054 | if (is_space_char (*base_string)) | |
24eab124 | 7055 | ++base_string; |
252b5132 | 7056 | |
af6bdddf | 7057 | if (*base_string == ',' |
4eed87de AM |
7058 | || ((i.base_reg = parse_register (base_string, &end_op)) |
7059 | != NULL)) | |
252b5132 | 7060 | { |
af6bdddf | 7061 | displacement_string_end = temp_string; |
252b5132 | 7062 | |
40fb9820 | 7063 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 7064 | |
af6bdddf | 7065 | if (i.base_reg) |
24eab124 | 7066 | { |
24eab124 AM |
7067 | base_string = end_op; |
7068 | if (is_space_char (*base_string)) | |
7069 | ++base_string; | |
af6bdddf AM |
7070 | } |
7071 | ||
7072 | /* There may be an index reg or scale factor here. */ | |
7073 | if (*base_string == ',') | |
7074 | { | |
7075 | ++base_string; | |
7076 | if (is_space_char (*base_string)) | |
7077 | ++base_string; | |
7078 | ||
4eed87de AM |
7079 | if ((i.index_reg = parse_register (base_string, &end_op)) |
7080 | != NULL) | |
24eab124 | 7081 | { |
af6bdddf | 7082 | base_string = end_op; |
24eab124 AM |
7083 | if (is_space_char (*base_string)) |
7084 | ++base_string; | |
af6bdddf AM |
7085 | if (*base_string == ',') |
7086 | { | |
7087 | ++base_string; | |
7088 | if (is_space_char (*base_string)) | |
7089 | ++base_string; | |
7090 | } | |
e5cb08ac | 7091 | else if (*base_string != ')') |
af6bdddf | 7092 | { |
4eed87de AM |
7093 | as_bad (_("expecting `,' or `)' " |
7094 | "after index register in `%s'"), | |
af6bdddf AM |
7095 | operand_string); |
7096 | return 0; | |
7097 | } | |
24eab124 | 7098 | } |
af6bdddf | 7099 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 7100 | { |
af6bdddf | 7101 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
7102 | return 0; |
7103 | } | |
252b5132 | 7104 | |
47926f60 | 7105 | /* Check for scale factor. */ |
551c1ca1 | 7106 | if (*base_string != ')') |
af6bdddf | 7107 | { |
551c1ca1 AM |
7108 | char *end_scale = i386_scale (base_string); |
7109 | ||
7110 | if (!end_scale) | |
af6bdddf | 7111 | return 0; |
24eab124 | 7112 | |
551c1ca1 | 7113 | base_string = end_scale; |
af6bdddf AM |
7114 | if (is_space_char (*base_string)) |
7115 | ++base_string; | |
7116 | if (*base_string != ')') | |
7117 | { | |
4eed87de AM |
7118 | as_bad (_("expecting `)' " |
7119 | "after scale factor in `%s'"), | |
af6bdddf AM |
7120 | operand_string); |
7121 | return 0; | |
7122 | } | |
7123 | } | |
7124 | else if (!i.index_reg) | |
24eab124 | 7125 | { |
4eed87de AM |
7126 | as_bad (_("expecting index register or scale factor " |
7127 | "after `,'; got '%c'"), | |
af6bdddf | 7128 | *base_string); |
24eab124 AM |
7129 | return 0; |
7130 | } | |
7131 | } | |
af6bdddf | 7132 | else if (*base_string != ')') |
24eab124 | 7133 | { |
4eed87de AM |
7134 | as_bad (_("expecting `,' or `)' " |
7135 | "after base register in `%s'"), | |
af6bdddf | 7136 | operand_string); |
24eab124 AM |
7137 | return 0; |
7138 | } | |
c3332e24 | 7139 | } |
af6bdddf | 7140 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 7141 | { |
af6bdddf | 7142 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 7143 | return 0; |
c3332e24 | 7144 | } |
24eab124 AM |
7145 | } |
7146 | ||
7147 | /* If there's an expression beginning the operand, parse it, | |
7148 | assuming displacement_string_start and | |
7149 | displacement_string_end are meaningful. */ | |
7150 | if (displacement_string_start != displacement_string_end) | |
7151 | { | |
7152 | if (!i386_displacement (displacement_string_start, | |
7153 | displacement_string_end)) | |
7154 | return 0; | |
7155 | } | |
7156 | ||
7157 | /* Special case for (%dx) while doing input/output op. */ | |
7158 | if (i.base_reg | |
0dfbf9d7 L |
7159 | && operand_type_equal (&i.base_reg->reg_type, |
7160 | ®16_inoutportreg) | |
24eab124 AM |
7161 | && i.index_reg == 0 |
7162 | && i.log2_scale_factor == 0 | |
7163 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 7164 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 7165 | { |
65da13b5 | 7166 | i.types[this_operand] = inoutportreg; |
24eab124 AM |
7167 | return 1; |
7168 | } | |
7169 | ||
eecb386c AM |
7170 | if (i386_index_check (operand_string) == 0) |
7171 | return 0; | |
5c07affc | 7172 | i.types[this_operand].bitfield.mem = 1; |
24eab124 AM |
7173 | i.mem_operands++; |
7174 | } | |
7175 | else | |
ce8a8b2f AM |
7176 | { |
7177 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
7178 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
7179 | output_invalid (*op_string), | |
7180 | this_operand + 1, | |
7181 | op_string); | |
7182 | return 0; | |
7183 | } | |
47926f60 | 7184 | return 1; /* Normal return. */ |
252b5132 RH |
7185 | } |
7186 | \f | |
ee7fcc42 AM |
7187 | /* md_estimate_size_before_relax() |
7188 | ||
7189 | Called just before relax() for rs_machine_dependent frags. The x86 | |
7190 | assembler uses these frags to handle variable size jump | |
7191 | instructions. | |
7192 | ||
7193 | Any symbol that is now undefined will not become defined. | |
7194 | Return the correct fr_subtype in the frag. | |
7195 | Return the initial "guess for variable size of frag" to caller. | |
7196 | The guess is actually the growth beyond the fixed part. Whatever | |
7197 | we do to grow the fixed or variable part contributes to our | |
7198 | returned value. */ | |
7199 | ||
252b5132 RH |
7200 | int |
7201 | md_estimate_size_before_relax (fragP, segment) | |
29b0f896 AM |
7202 | fragS *fragP; |
7203 | segT segment; | |
252b5132 | 7204 | { |
252b5132 | 7205 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
7206 | check for un-relaxable symbols. On an ELF system, we can't relax |
7207 | an externally visible symbol, because it may be overridden by a | |
7208 | shared library. */ | |
7209 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 7210 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 7211 | || (IS_ELF |
31312f95 AM |
7212 | && (S_IS_EXTERNAL (fragP->fr_symbol) |
7213 | || S_IS_WEAK (fragP->fr_symbol))) | |
b98ef147 AM |
7214 | #endif |
7215 | ) | |
252b5132 | 7216 | { |
b98ef147 AM |
7217 | /* Symbol is undefined in this segment, or we need to keep a |
7218 | reloc so that weak symbols can be overridden. */ | |
7219 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 7220 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
7221 | unsigned char *opcode; |
7222 | int old_fr_fix; | |
f6af82bd | 7223 | |
ee7fcc42 AM |
7224 | if (fragP->fr_var != NO_RELOC) |
7225 | reloc_type = fragP->fr_var; | |
b98ef147 | 7226 | else if (size == 2) |
f6af82bd AM |
7227 | reloc_type = BFD_RELOC_16_PCREL; |
7228 | else | |
7229 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 7230 | |
ee7fcc42 AM |
7231 | old_fr_fix = fragP->fr_fix; |
7232 | opcode = (unsigned char *) fragP->fr_opcode; | |
7233 | ||
fddf5b5b | 7234 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 7235 | { |
fddf5b5b AM |
7236 | case UNCOND_JUMP: |
7237 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 7238 | opcode[0] = 0xe9; |
252b5132 | 7239 | fragP->fr_fix += size; |
062cd5e7 AS |
7240 | fix_new (fragP, old_fr_fix, size, |
7241 | fragP->fr_symbol, | |
7242 | fragP->fr_offset, 1, | |
7243 | reloc_type); | |
252b5132 RH |
7244 | break; |
7245 | ||
fddf5b5b | 7246 | case COND_JUMP86: |
412167cb AM |
7247 | if (size == 2 |
7248 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
7249 | { |
7250 | /* Negate the condition, and branch past an | |
7251 | unconditional jump. */ | |
7252 | opcode[0] ^= 1; | |
7253 | opcode[1] = 3; | |
7254 | /* Insert an unconditional jump. */ | |
7255 | opcode[2] = 0xe9; | |
7256 | /* We added two extra opcode bytes, and have a two byte | |
7257 | offset. */ | |
7258 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
7259 | fix_new (fragP, old_fr_fix + 2, 2, |
7260 | fragP->fr_symbol, | |
7261 | fragP->fr_offset, 1, | |
7262 | reloc_type); | |
fddf5b5b AM |
7263 | break; |
7264 | } | |
7265 | /* Fall through. */ | |
7266 | ||
7267 | case COND_JUMP: | |
412167cb AM |
7268 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
7269 | { | |
3e02c1cc AM |
7270 | fixS *fixP; |
7271 | ||
412167cb | 7272 | fragP->fr_fix += 1; |
3e02c1cc AM |
7273 | fixP = fix_new (fragP, old_fr_fix, 1, |
7274 | fragP->fr_symbol, | |
7275 | fragP->fr_offset, 1, | |
7276 | BFD_RELOC_8_PCREL); | |
7277 | fixP->fx_signed = 1; | |
412167cb AM |
7278 | break; |
7279 | } | |
93c2a809 | 7280 | |
24eab124 | 7281 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 7282 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 7283 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 7284 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
7285 | /* We've added an opcode byte. */ |
7286 | fragP->fr_fix += 1 + size; | |
062cd5e7 AS |
7287 | fix_new (fragP, old_fr_fix + 1, size, |
7288 | fragP->fr_symbol, | |
7289 | fragP->fr_offset, 1, | |
7290 | reloc_type); | |
252b5132 | 7291 | break; |
fddf5b5b AM |
7292 | |
7293 | default: | |
7294 | BAD_CASE (fragP->fr_subtype); | |
7295 | break; | |
252b5132 RH |
7296 | } |
7297 | frag_wane (fragP); | |
ee7fcc42 | 7298 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 7299 | } |
93c2a809 | 7300 | |
93c2a809 AM |
7301 | /* Guess size depending on current relax state. Initially the relax |
7302 | state will correspond to a short jump and we return 1, because | |
7303 | the variable part of the frag (the branch offset) is one byte | |
7304 | long. However, we can relax a section more than once and in that | |
7305 | case we must either set fr_subtype back to the unrelaxed state, | |
7306 | or return the value for the appropriate branch. */ | |
7307 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
7308 | } |
7309 | ||
47926f60 KH |
7310 | /* Called after relax() is finished. |
7311 | ||
7312 | In: Address of frag. | |
7313 | fr_type == rs_machine_dependent. | |
7314 | fr_subtype is what the address relaxed to. | |
7315 | ||
7316 | Out: Any fixSs and constants are set up. | |
7317 | Caller will turn frag into a ".space 0". */ | |
7318 | ||
252b5132 RH |
7319 | void |
7320 | md_convert_frag (abfd, sec, fragP) | |
ab9da554 ILT |
7321 | bfd *abfd ATTRIBUTE_UNUSED; |
7322 | segT sec ATTRIBUTE_UNUSED; | |
29b0f896 | 7323 | fragS *fragP; |
252b5132 | 7324 | { |
29b0f896 | 7325 | unsigned char *opcode; |
252b5132 | 7326 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
7327 | offsetT target_address; |
7328 | offsetT opcode_address; | |
252b5132 | 7329 | unsigned int extension = 0; |
847f7ad4 | 7330 | offsetT displacement_from_opcode_start; |
252b5132 RH |
7331 | |
7332 | opcode = (unsigned char *) fragP->fr_opcode; | |
7333 | ||
47926f60 | 7334 | /* Address we want to reach in file space. */ |
252b5132 | 7335 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 7336 | |
47926f60 | 7337 | /* Address opcode resides at in file space. */ |
252b5132 RH |
7338 | opcode_address = fragP->fr_address + fragP->fr_fix; |
7339 | ||
47926f60 | 7340 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
7341 | displacement_from_opcode_start = target_address - opcode_address; |
7342 | ||
fddf5b5b | 7343 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 7344 | { |
47926f60 KH |
7345 | /* Don't have to change opcode. */ |
7346 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 7347 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
7348 | } |
7349 | else | |
7350 | { | |
7351 | if (no_cond_jump_promotion | |
7352 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
7353 | as_warn_where (fragP->fr_file, fragP->fr_line, |
7354 | _("long jump required")); | |
252b5132 | 7355 | |
fddf5b5b AM |
7356 | switch (fragP->fr_subtype) |
7357 | { | |
7358 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
7359 | extension = 4; /* 1 opcode + 4 displacement */ | |
7360 | opcode[0] = 0xe9; | |
7361 | where_to_put_displacement = &opcode[1]; | |
7362 | break; | |
252b5132 | 7363 | |
fddf5b5b AM |
7364 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
7365 | extension = 2; /* 1 opcode + 2 displacement */ | |
7366 | opcode[0] = 0xe9; | |
7367 | where_to_put_displacement = &opcode[1]; | |
7368 | break; | |
252b5132 | 7369 | |
fddf5b5b AM |
7370 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
7371 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
7372 | extension = 5; /* 2 opcode + 4 displacement */ | |
7373 | opcode[1] = opcode[0] + 0x10; | |
7374 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
7375 | where_to_put_displacement = &opcode[2]; | |
7376 | break; | |
252b5132 | 7377 | |
fddf5b5b AM |
7378 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
7379 | extension = 3; /* 2 opcode + 2 displacement */ | |
7380 | opcode[1] = opcode[0] + 0x10; | |
7381 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
7382 | where_to_put_displacement = &opcode[2]; | |
7383 | break; | |
252b5132 | 7384 | |
fddf5b5b AM |
7385 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
7386 | extension = 4; | |
7387 | opcode[0] ^= 1; | |
7388 | opcode[1] = 3; | |
7389 | opcode[2] = 0xe9; | |
7390 | where_to_put_displacement = &opcode[3]; | |
7391 | break; | |
7392 | ||
7393 | default: | |
7394 | BAD_CASE (fragP->fr_subtype); | |
7395 | break; | |
7396 | } | |
252b5132 | 7397 | } |
fddf5b5b | 7398 | |
7b81dfbb AJ |
7399 | /* If size if less then four we are sure that the operand fits, |
7400 | but if it's 4, then it could be that the displacement is larger | |
7401 | then -/+ 2GB. */ | |
7402 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
7403 | && object_64bit | |
7404 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
7405 | + ((addressT) 1 << 31)) |
7406 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
7407 | { |
7408 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
7409 | _("jump target out of range")); | |
7410 | /* Make us emit 0. */ | |
7411 | displacement_from_opcode_start = extension; | |
7412 | } | |
47926f60 | 7413 | /* Now put displacement after opcode. */ |
252b5132 RH |
7414 | md_number_to_chars ((char *) where_to_put_displacement, |
7415 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 7416 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
7417 | fragP->fr_fix += extension; |
7418 | } | |
7419 | \f | |
252b5132 RH |
7420 | /* Apply a fixup (fixS) to segment data, once it has been determined |
7421 | by our caller that we have all the info we need to fix it up. | |
7422 | ||
7423 | On the 386, immediates, displacements, and data pointers are all in | |
7424 | the same (little-endian) format, so we don't need to care about which | |
7425 | we are handling. */ | |
7426 | ||
94f592af | 7427 | void |
55cf6793 | 7428 | md_apply_fix (fixP, valP, seg) |
47926f60 KH |
7429 | /* The fix we're to put in. */ |
7430 | fixS *fixP; | |
47926f60 | 7431 | /* Pointer to the value of the bits. */ |
c6682705 | 7432 | valueT *valP; |
47926f60 KH |
7433 | /* Segment fix is from. */ |
7434 | segT seg ATTRIBUTE_UNUSED; | |
252b5132 | 7435 | { |
94f592af | 7436 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 7437 | valueT value = *valP; |
252b5132 | 7438 | |
f86103b7 | 7439 | #if !defined (TE_Mach) |
93382f6d AM |
7440 | if (fixP->fx_pcrel) |
7441 | { | |
7442 | switch (fixP->fx_r_type) | |
7443 | { | |
5865bb77 ILT |
7444 | default: |
7445 | break; | |
7446 | ||
d6ab8113 JB |
7447 | case BFD_RELOC_64: |
7448 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
7449 | break; | |
93382f6d | 7450 | case BFD_RELOC_32: |
ae8887b5 | 7451 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
7452 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
7453 | break; | |
7454 | case BFD_RELOC_16: | |
7455 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
7456 | break; | |
7457 | case BFD_RELOC_8: | |
7458 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
7459 | break; | |
7460 | } | |
7461 | } | |
252b5132 | 7462 | |
a161fe53 | 7463 | if (fixP->fx_addsy != NULL |
31312f95 | 7464 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 7465 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 AM |
7466 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
7467 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) | |
7468 | && !use_rela_relocations) | |
252b5132 | 7469 | { |
31312f95 AM |
7470 | /* This is a hack. There should be a better way to handle this. |
7471 | This covers for the fact that bfd_install_relocation will | |
7472 | subtract the current location (for partial_inplace, PC relative | |
7473 | relocations); see more below. */ | |
252b5132 | 7474 | #ifndef OBJ_AOUT |
718ddfc0 | 7475 | if (IS_ELF |
252b5132 RH |
7476 | #ifdef TE_PE |
7477 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
7478 | #endif | |
7479 | ) | |
7480 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
7481 | #endif | |
7482 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 7483 | if (IS_ELF) |
252b5132 | 7484 | { |
6539b54b | 7485 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 7486 | |
6539b54b | 7487 | if ((sym_seg == seg |
2f66722d | 7488 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 7489 | && sym_seg != absolute_section)) |
ae6063d4 | 7490 | && !generic_force_reloc (fixP)) |
2f66722d AM |
7491 | { |
7492 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
7493 | bfd_install_relocation subtracts them out again. I think |
7494 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
7495 | it. FIXME. */ |
7496 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
7497 | } | |
252b5132 RH |
7498 | } |
7499 | #endif | |
7500 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
7501 | /* For some reason, the PE format does not store a |
7502 | section address offset for a PC relative symbol. */ | |
7503 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 7504 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
7505 | value += md_pcrel_from (fixP); |
7506 | #endif | |
7507 | } | |
7508 | ||
7509 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 7510 | and we must not disappoint it. */ |
252b5132 | 7511 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 7512 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
7513 | switch (fixP->fx_r_type) |
7514 | { | |
7515 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 7516 | case BFD_RELOC_X86_64_PLT32: |
47926f60 KH |
7517 | /* Make the jump instruction point to the address of the operand. At |
7518 | runtime we merely add the offset to the actual PLT entry. */ | |
7519 | value = -4; | |
7520 | break; | |
31312f95 | 7521 | |
13ae64f3 JJ |
7522 | case BFD_RELOC_386_TLS_GD: |
7523 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 7524 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
7525 | case BFD_RELOC_386_TLS_IE: |
7526 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 7527 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
7528 | case BFD_RELOC_X86_64_TLSGD: |
7529 | case BFD_RELOC_X86_64_TLSLD: | |
7530 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 7531 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
7532 | value = 0; /* Fully resolved at runtime. No addend. */ |
7533 | /* Fallthrough */ | |
7534 | case BFD_RELOC_386_TLS_LE: | |
7535 | case BFD_RELOC_386_TLS_LDO_32: | |
7536 | case BFD_RELOC_386_TLS_LE_32: | |
7537 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 7538 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 7539 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 7540 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
7541 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
7542 | break; | |
7543 | ||
67a4f2b7 AO |
7544 | case BFD_RELOC_386_TLS_DESC_CALL: |
7545 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
7546 | value = 0; /* Fully resolved at runtime. No addend. */ | |
7547 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7548 | fixP->fx_done = 0; | |
7549 | return; | |
7550 | ||
00f7efb6 JJ |
7551 | case BFD_RELOC_386_GOT32: |
7552 | case BFD_RELOC_X86_64_GOT32: | |
47926f60 KH |
7553 | value = 0; /* Fully resolved at runtime. No addend. */ |
7554 | break; | |
47926f60 KH |
7555 | |
7556 | case BFD_RELOC_VTABLE_INHERIT: | |
7557 | case BFD_RELOC_VTABLE_ENTRY: | |
7558 | fixP->fx_done = 0; | |
94f592af | 7559 | return; |
47926f60 KH |
7560 | |
7561 | default: | |
7562 | break; | |
7563 | } | |
7564 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
c6682705 | 7565 | *valP = value; |
f86103b7 | 7566 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 7567 | |
3e73aa7c | 7568 | /* Are we finished with this relocation now? */ |
c6682705 | 7569 | if (fixP->fx_addsy == NULL) |
3e73aa7c JH |
7570 | fixP->fx_done = 1; |
7571 | else if (use_rela_relocations) | |
7572 | { | |
7573 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
7574 | /* Remember value for tc_gen_reloc. */ |
7575 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
7576 | value = 0; |
7577 | } | |
f86103b7 | 7578 | |
94f592af | 7579 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 7580 | } |
252b5132 | 7581 | \f |
252b5132 | 7582 | char * |
499ac353 | 7583 | md_atof (int type, char *litP, int *sizeP) |
252b5132 | 7584 | { |
499ac353 NC |
7585 | /* This outputs the LITTLENUMs in REVERSE order; |
7586 | in accord with the bigendian 386. */ | |
7587 | return ieee_md_atof (type, litP, sizeP, FALSE); | |
252b5132 RH |
7588 | } |
7589 | \f | |
2d545b82 | 7590 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 7591 | |
252b5132 | 7592 | static char * |
e3bb37b5 | 7593 | output_invalid (int c) |
252b5132 | 7594 | { |
3882b010 | 7595 | if (ISPRINT (c)) |
f9f21a03 L |
7596 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
7597 | "'%c'", c); | |
252b5132 | 7598 | else |
f9f21a03 | 7599 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 7600 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
7601 | return output_invalid_buf; |
7602 | } | |
7603 | ||
af6bdddf | 7604 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
7605 | |
7606 | static const reg_entry * | |
4d1bb795 | 7607 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 7608 | { |
af6bdddf AM |
7609 | char *s = reg_string; |
7610 | char *p; | |
252b5132 RH |
7611 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
7612 | const reg_entry *r; | |
7613 | ||
7614 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
7615 | if (*s == REGISTER_PREFIX) | |
7616 | ++s; | |
7617 | ||
7618 | if (is_space_char (*s)) | |
7619 | ++s; | |
7620 | ||
7621 | p = reg_name_given; | |
af6bdddf | 7622 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
7623 | { |
7624 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
7625 | return (const reg_entry *) NULL; |
7626 | s++; | |
252b5132 RH |
7627 | } |
7628 | ||
6588847e DN |
7629 | /* For naked regs, make sure that we are not dealing with an identifier. |
7630 | This prevents confusing an identifier like `eax_var' with register | |
7631 | `eax'. */ | |
7632 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
7633 | return (const reg_entry *) NULL; | |
7634 | ||
af6bdddf | 7635 | *end_op = s; |
252b5132 RH |
7636 | |
7637 | r = (const reg_entry *) hash_find (reg_hash, reg_name_given); | |
7638 | ||
5f47d35b | 7639 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
47926f60 | 7640 | if (r == i386_regtab /* %st is first entry of table */) |
5f47d35b | 7641 | { |
5f47d35b AM |
7642 | if (is_space_char (*s)) |
7643 | ++s; | |
7644 | if (*s == '(') | |
7645 | { | |
af6bdddf | 7646 | ++s; |
5f47d35b AM |
7647 | if (is_space_char (*s)) |
7648 | ++s; | |
7649 | if (*s >= '0' && *s <= '7') | |
7650 | { | |
db557034 | 7651 | int fpr = *s - '0'; |
af6bdddf | 7652 | ++s; |
5f47d35b AM |
7653 | if (is_space_char (*s)) |
7654 | ++s; | |
7655 | if (*s == ')') | |
7656 | { | |
7657 | *end_op = s + 1; | |
db557034 AM |
7658 | r = hash_find (reg_hash, "st(0)"); |
7659 | know (r); | |
7660 | return r + fpr; | |
5f47d35b | 7661 | } |
5f47d35b | 7662 | } |
47926f60 | 7663 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
7664 | return (const reg_entry *) NULL; |
7665 | } | |
7666 | } | |
7667 | ||
a60de03c JB |
7668 | if (r == NULL || allow_pseudo_reg) |
7669 | return r; | |
7670 | ||
0dfbf9d7 | 7671 | if (operand_type_all_zero (&r->reg_type)) |
a60de03c JB |
7672 | return (const reg_entry *) NULL; |
7673 | ||
192dc9c6 JB |
7674 | if ((r->reg_type.bitfield.reg32 |
7675 | || r->reg_type.bitfield.sreg3 | |
7676 | || r->reg_type.bitfield.control | |
7677 | || r->reg_type.bitfield.debug | |
7678 | || r->reg_type.bitfield.test) | |
7679 | && !cpu_arch_flags.bitfield.cpui386) | |
7680 | return (const reg_entry *) NULL; | |
7681 | ||
7682 | if (r->reg_type.bitfield.regmmx && !cpu_arch_flags.bitfield.cpummx) | |
7683 | return (const reg_entry *) NULL; | |
7684 | ||
7685 | if (r->reg_type.bitfield.regxmm && !cpu_arch_flags.bitfield.cpusse) | |
7686 | return (const reg_entry *) NULL; | |
7687 | ||
db51cc60 | 7688 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ |
a60de03c | 7689 | if (!allow_index_reg |
db51cc60 L |
7690 | && (r->reg_num == RegEiz || r->reg_num == RegRiz)) |
7691 | return (const reg_entry *) NULL; | |
7692 | ||
a60de03c JB |
7693 | if (((r->reg_flags & (RegRex64 | RegRex)) |
7694 | || r->reg_type.bitfield.reg64) | |
40fb9820 | 7695 | && (!cpu_arch_flags.bitfield.cpulm |
0dfbf9d7 | 7696 | || !operand_type_equal (&r->reg_type, &control)) |
1ae00879 | 7697 | && flag_code != CODE_64BIT) |
20f0a1fc | 7698 | return (const reg_entry *) NULL; |
1ae00879 | 7699 | |
b7240065 JB |
7700 | if (r->reg_type.bitfield.sreg3 && r->reg_num == RegFlat && !intel_syntax) |
7701 | return (const reg_entry *) NULL; | |
7702 | ||
252b5132 RH |
7703 | return r; |
7704 | } | |
4d1bb795 JB |
7705 | |
7706 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
7707 | ||
7708 | static const reg_entry * | |
7709 | parse_register (char *reg_string, char **end_op) | |
7710 | { | |
7711 | const reg_entry *r; | |
7712 | ||
7713 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
7714 | r = parse_real_register (reg_string, end_op); | |
7715 | else | |
7716 | r = NULL; | |
7717 | if (!r) | |
7718 | { | |
7719 | char *save = input_line_pointer; | |
7720 | char c; | |
7721 | symbolS *symbolP; | |
7722 | ||
7723 | input_line_pointer = reg_string; | |
7724 | c = get_symbol_end (); | |
7725 | symbolP = symbol_find (reg_string); | |
7726 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) | |
7727 | { | |
7728 | const expressionS *e = symbol_get_value_expression (symbolP); | |
7729 | ||
7730 | know (e->X_op == O_register); | |
4eed87de | 7731 | know (e->X_add_number >= 0 |
c3fe08fa | 7732 | && (valueT) e->X_add_number < i386_regtab_size); |
4d1bb795 JB |
7733 | r = i386_regtab + e->X_add_number; |
7734 | *end_op = input_line_pointer; | |
7735 | } | |
7736 | *input_line_pointer = c; | |
7737 | input_line_pointer = save; | |
7738 | } | |
7739 | return r; | |
7740 | } | |
7741 | ||
7742 | int | |
7743 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
7744 | { | |
7745 | const reg_entry *r; | |
7746 | char *end = input_line_pointer; | |
7747 | ||
7748 | *end = *nextcharP; | |
7749 | r = parse_register (name, &input_line_pointer); | |
7750 | if (r && end <= input_line_pointer) | |
7751 | { | |
7752 | *nextcharP = *input_line_pointer; | |
7753 | *input_line_pointer = 0; | |
7754 | e->X_op = O_register; | |
7755 | e->X_add_number = r - i386_regtab; | |
7756 | return 1; | |
7757 | } | |
7758 | input_line_pointer = end; | |
7759 | *end = 0; | |
7760 | return 0; | |
7761 | } | |
7762 | ||
7763 | void | |
7764 | md_operand (expressionS *e) | |
7765 | { | |
7766 | if (*input_line_pointer == REGISTER_PREFIX) | |
7767 | { | |
7768 | char *end; | |
7769 | const reg_entry *r = parse_real_register (input_line_pointer, &end); | |
7770 | ||
7771 | if (r) | |
7772 | { | |
7773 | e->X_op = O_register; | |
7774 | e->X_add_number = r - i386_regtab; | |
7775 | input_line_pointer = end; | |
7776 | } | |
7777 | } | |
7778 | } | |
7779 | ||
252b5132 | 7780 | \f |
4cc782b5 | 7781 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
12b55ccc | 7782 | const char *md_shortopts = "kVQ:sqn"; |
252b5132 | 7783 | #else |
12b55ccc | 7784 | const char *md_shortopts = "qn"; |
252b5132 | 7785 | #endif |
6e0b89ee | 7786 | |
3e73aa7c | 7787 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
7788 | #define OPTION_64 (OPTION_MD_BASE + 1) |
7789 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
7790 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
7791 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
1efbbeb4 L |
7792 | #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5) |
7793 | #define OPTION_MSYNTAX (OPTION_MD_BASE + 6) | |
7794 | #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7) | |
7795 | #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8) | |
7796 | #define OPTION_MOLD_GCC (OPTION_MD_BASE + 9) | |
c0f3af97 | 7797 | #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10) |
b3b91714 | 7798 | |
99ad8390 NC |
7799 | struct option md_longopts[] = |
7800 | { | |
3e73aa7c | 7801 | {"32", no_argument, NULL, OPTION_32}, |
99ad8390 | 7802 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
3e73aa7c | 7803 | {"64", no_argument, NULL, OPTION_64}, |
6e0b89ee | 7804 | #endif |
b3b91714 | 7805 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
7806 | {"march", required_argument, NULL, OPTION_MARCH}, |
7807 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
1efbbeb4 L |
7808 | {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC}, |
7809 | {"msyntax", required_argument, NULL, OPTION_MSYNTAX}, | |
7810 | {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG}, | |
7811 | {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG}, | |
7812 | {"mold-gcc", no_argument, NULL, OPTION_MOLD_GCC}, | |
c0f3af97 | 7813 | {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX}, |
252b5132 RH |
7814 | {NULL, no_argument, NULL, 0} |
7815 | }; | |
7816 | size_t md_longopts_size = sizeof (md_longopts); | |
7817 | ||
7818 | int | |
9103f4f4 | 7819 | md_parse_option (int c, char *arg) |
252b5132 | 7820 | { |
9103f4f4 | 7821 | unsigned int i; |
6305a203 | 7822 | char *arch, *next; |
9103f4f4 | 7823 | |
252b5132 RH |
7824 | switch (c) |
7825 | { | |
12b55ccc L |
7826 | case 'n': |
7827 | optimize_align_code = 0; | |
7828 | break; | |
7829 | ||
a38cf1db AM |
7830 | case 'q': |
7831 | quiet_warnings = 1; | |
252b5132 RH |
7832 | break; |
7833 | ||
7834 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
7835 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
7836 | should be emitted or not. FIXME: Not implemented. */ | |
7837 | case 'Q': | |
252b5132 RH |
7838 | break; |
7839 | ||
7840 | /* -V: SVR4 argument to print version ID. */ | |
7841 | case 'V': | |
7842 | print_version_id (); | |
7843 | break; | |
7844 | ||
a38cf1db AM |
7845 | /* -k: Ignore for FreeBSD compatibility. */ |
7846 | case 'k': | |
252b5132 | 7847 | break; |
4cc782b5 ILT |
7848 | |
7849 | case 's': | |
7850 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 7851 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 7852 | break; |
99ad8390 NC |
7853 | #endif |
7854 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) | |
3e73aa7c JH |
7855 | case OPTION_64: |
7856 | { | |
7857 | const char **list, **l; | |
7858 | ||
3e73aa7c JH |
7859 | list = bfd_target_list (); |
7860 | for (l = list; *l != NULL; l++) | |
8620418b | 7861 | if (CONST_STRNEQ (*l, "elf64-x86-64") |
99ad8390 NC |
7862 | || strcmp (*l, "coff-x86-64") == 0 |
7863 | || strcmp (*l, "pe-x86-64") == 0 | |
7864 | || strcmp (*l, "pei-x86-64") == 0) | |
6e0b89ee AM |
7865 | { |
7866 | default_arch = "x86_64"; | |
7867 | break; | |
7868 | } | |
3e73aa7c | 7869 | if (*l == NULL) |
6e0b89ee | 7870 | as_fatal (_("No compiled in support for x86_64")); |
3e73aa7c JH |
7871 | free (list); |
7872 | } | |
7873 | break; | |
7874 | #endif | |
252b5132 | 7875 | |
6e0b89ee AM |
7876 | case OPTION_32: |
7877 | default_arch = "i386"; | |
7878 | break; | |
7879 | ||
b3b91714 AM |
7880 | case OPTION_DIVIDE: |
7881 | #ifdef SVR4_COMMENT_CHARS | |
7882 | { | |
7883 | char *n, *t; | |
7884 | const char *s; | |
7885 | ||
7886 | n = (char *) xmalloc (strlen (i386_comment_chars) + 1); | |
7887 | t = n; | |
7888 | for (s = i386_comment_chars; *s != '\0'; s++) | |
7889 | if (*s != '/') | |
7890 | *t++ = *s; | |
7891 | *t = '\0'; | |
7892 | i386_comment_chars = n; | |
7893 | } | |
7894 | #endif | |
7895 | break; | |
7896 | ||
9103f4f4 | 7897 | case OPTION_MARCH: |
6305a203 L |
7898 | arch = xstrdup (arg); |
7899 | do | |
9103f4f4 | 7900 | { |
6305a203 L |
7901 | if (*arch == '.') |
7902 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
7903 | next = strchr (arch, '+'); | |
7904 | if (next) | |
7905 | *next++ = '\0'; | |
7906 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
9103f4f4 | 7907 | { |
6305a203 | 7908 | if (strcmp (arch, cpu_arch [i].name) == 0) |
ccc9c027 | 7909 | { |
6305a203 L |
7910 | /* Processor. */ |
7911 | cpu_arch_name = cpu_arch[i].name; | |
7912 | cpu_sub_arch_name = NULL; | |
7913 | cpu_arch_flags = cpu_arch[i].flags; | |
7914 | cpu_arch_isa = cpu_arch[i].type; | |
7915 | cpu_arch_isa_flags = cpu_arch[i].flags; | |
7916 | if (!cpu_arch_tune_set) | |
7917 | { | |
7918 | cpu_arch_tune = cpu_arch_isa; | |
7919 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
7920 | } | |
7921 | break; | |
7922 | } | |
7923 | else if (*cpu_arch [i].name == '.' | |
7924 | && strcmp (arch, cpu_arch [i].name + 1) == 0) | |
7925 | { | |
7926 | /* ISA entension. */ | |
7927 | i386_cpu_flags flags; | |
7928 | flags = cpu_flags_or (cpu_arch_flags, | |
7929 | cpu_arch[i].flags); | |
0dfbf9d7 | 7930 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
6305a203 L |
7931 | { |
7932 | if (cpu_sub_arch_name) | |
7933 | { | |
7934 | char *name = cpu_sub_arch_name; | |
7935 | cpu_sub_arch_name = concat (name, | |
7936 | cpu_arch[i].name, | |
1bf57e9f | 7937 | (const char *) NULL); |
6305a203 L |
7938 | free (name); |
7939 | } | |
7940 | else | |
7941 | cpu_sub_arch_name = xstrdup (cpu_arch[i].name); | |
7942 | cpu_arch_flags = flags; | |
7943 | } | |
7944 | break; | |
ccc9c027 | 7945 | } |
9103f4f4 | 7946 | } |
6305a203 L |
7947 | |
7948 | if (i >= ARRAY_SIZE (cpu_arch)) | |
7949 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
7950 | ||
7951 | arch = next; | |
9103f4f4 | 7952 | } |
6305a203 | 7953 | while (next != NULL ); |
9103f4f4 L |
7954 | break; |
7955 | ||
7956 | case OPTION_MTUNE: | |
7957 | if (*arg == '.') | |
7958 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
7959 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
7960 | { | |
7961 | if (strcmp (arg, cpu_arch [i].name) == 0) | |
7962 | { | |
ccc9c027 | 7963 | cpu_arch_tune_set = 1; |
9103f4f4 L |
7964 | cpu_arch_tune = cpu_arch [i].type; |
7965 | cpu_arch_tune_flags = cpu_arch[i].flags; | |
7966 | break; | |
7967 | } | |
7968 | } | |
7969 | if (i >= ARRAY_SIZE (cpu_arch)) | |
7970 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
7971 | break; | |
7972 | ||
1efbbeb4 L |
7973 | case OPTION_MMNEMONIC: |
7974 | if (strcasecmp (arg, "att") == 0) | |
7975 | intel_mnemonic = 0; | |
7976 | else if (strcasecmp (arg, "intel") == 0) | |
7977 | intel_mnemonic = 1; | |
7978 | else | |
7979 | as_fatal (_("Invalid -mmnemonic= option: `%s'"), arg); | |
7980 | break; | |
7981 | ||
7982 | case OPTION_MSYNTAX: | |
7983 | if (strcasecmp (arg, "att") == 0) | |
7984 | intel_syntax = 0; | |
7985 | else if (strcasecmp (arg, "intel") == 0) | |
7986 | intel_syntax = 1; | |
7987 | else | |
7988 | as_fatal (_("Invalid -msyntax= option: `%s'"), arg); | |
7989 | break; | |
7990 | ||
7991 | case OPTION_MINDEX_REG: | |
7992 | allow_index_reg = 1; | |
7993 | break; | |
7994 | ||
7995 | case OPTION_MNAKED_REG: | |
7996 | allow_naked_reg = 1; | |
7997 | break; | |
7998 | ||
7999 | case OPTION_MOLD_GCC: | |
8000 | old_gcc = 1; | |
1efbbeb4 L |
8001 | break; |
8002 | ||
c0f3af97 L |
8003 | case OPTION_MSSE2AVX: |
8004 | sse2avx = 1; | |
8005 | break; | |
8006 | ||
252b5132 RH |
8007 | default: |
8008 | return 0; | |
8009 | } | |
8010 | return 1; | |
8011 | } | |
8012 | ||
8013 | void | |
8014 | md_show_usage (stream) | |
8015 | FILE *stream; | |
8016 | { | |
4cc782b5 ILT |
8017 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8018 | fprintf (stream, _("\ | |
a38cf1db AM |
8019 | -Q ignored\n\ |
8020 | -V print assembler version number\n\ | |
b3b91714 AM |
8021 | -k ignored\n")); |
8022 | #endif | |
8023 | fprintf (stream, _("\ | |
12b55ccc | 8024 | -n Do not optimize code alignment\n\ |
b3b91714 AM |
8025 | -q quieten some warnings\n")); |
8026 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
8027 | fprintf (stream, _("\ | |
a38cf1db | 8028 | -s ignored\n")); |
b3b91714 | 8029 | #endif |
751d281c L |
8030 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
8031 | fprintf (stream, _("\ | |
8032 | --32/--64 generate 32bit/64bit code\n")); | |
8033 | #endif | |
b3b91714 AM |
8034 | #ifdef SVR4_COMMENT_CHARS |
8035 | fprintf (stream, _("\ | |
8036 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
8037 | #else |
8038 | fprintf (stream, _("\ | |
b3b91714 | 8039 | --divide ignored\n")); |
4cc782b5 | 8040 | #endif |
9103f4f4 | 8041 | fprintf (stream, _("\ |
6305a203 L |
8042 | -march=CPU[,+EXTENSION...]\n\ |
8043 | generate code for CPU and EXTENSION, CPU is one of:\n\ | |
2cb4f3d5 L |
8044 | i8086, i186, i286, i386, i486, pentium, pentiumpro,\n\ |
8045 | pentiumii, pentiumiii, pentium4, prescott, nocona,\n\ | |
8046 | core, core2, k6, k6_2, athlon, k8, amdfam10,\n\ | |
8047 | generic32, generic64\n\ | |
599121aa L |
8048 | EXTENSION is combination of:\n\ |
8049 | mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, sse4,\n\ | |
594ab6a3 | 8050 | avx, vmx, smx, xsave, aes, pclmul, fma, 3dnow,\n\ |
c0f3af97 | 8051 | 3dnowa, sse4a, sse5, svme, abm, padlock\n")); |
6305a203 | 8052 | fprintf (stream, _("\ |
2cb4f3d5 L |
8053 | -mtune=CPU optimize for CPU, CPU is one of:\n\ |
8054 | i8086, i186, i286, i386, i486, pentium, pentiumpro,\n\ | |
8055 | pentiumii, pentiumiii, pentium4, prescott, nocona,\n\ | |
8056 | core, core2, k6, k6_2, athlon, k8, amdfam10,\n\ | |
8057 | generic32, generic64\n")); | |
ba104c83 | 8058 | fprintf (stream, _("\ |
c0f3af97 L |
8059 | -msse2avx encode SSE instructions with VEX prefix\n")); |
8060 | fprintf (stream, _("\ | |
ba104c83 L |
8061 | -mmnemonic=[att|intel] use AT&T/Intel mnemonic\n")); |
8062 | fprintf (stream, _("\ | |
8063 | -msyntax=[att|intel] use AT&T/Intel syntax\n")); | |
8064 | fprintf (stream, _("\ | |
8065 | -mindex-reg support pseudo index registers\n")); | |
8066 | fprintf (stream, _("\ | |
8067 | -mnaked-reg don't require `%%' prefix for registers\n")); | |
8068 | fprintf (stream, _("\ | |
8069 | -mold-gcc support old (<= 2.8.1) versions of gcc\n")); | |
252b5132 RH |
8070 | } |
8071 | ||
3e73aa7c | 8072 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
872ce6ff | 8073 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (TE_PEP)) |
252b5132 RH |
8074 | |
8075 | /* Pick the target format to use. */ | |
8076 | ||
47926f60 | 8077 | const char * |
e3bb37b5 | 8078 | i386_target_format (void) |
252b5132 | 8079 | { |
3e73aa7c | 8080 | if (!strcmp (default_arch, "x86_64")) |
9103f4f4 L |
8081 | { |
8082 | set_code_flag (CODE_64BIT); | |
0dfbf9d7 | 8083 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) |
40fb9820 L |
8084 | { |
8085 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
8086 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
8087 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
8088 | cpu_arch_isa_flags.bitfield.cpui486 = 1; | |
8089 | cpu_arch_isa_flags.bitfield.cpui586 = 1; | |
8090 | cpu_arch_isa_flags.bitfield.cpui686 = 1; | |
8091 | cpu_arch_isa_flags.bitfield.cpup4 = 1; | |
8092 | cpu_arch_isa_flags.bitfield.cpummx= 1; | |
40fb9820 L |
8093 | cpu_arch_isa_flags.bitfield.cpusse = 1; |
8094 | cpu_arch_isa_flags.bitfield.cpusse2 = 1; | |
8095 | } | |
0dfbf9d7 | 8096 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
40fb9820 L |
8097 | { |
8098 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
8099 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
8100 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
8101 | cpu_arch_tune_flags.bitfield.cpui486 = 1; | |
8102 | cpu_arch_tune_flags.bitfield.cpui586 = 1; | |
8103 | cpu_arch_tune_flags.bitfield.cpui686 = 1; | |
8104 | cpu_arch_tune_flags.bitfield.cpup4 = 1; | |
8105 | cpu_arch_tune_flags.bitfield.cpummx= 1; | |
40fb9820 L |
8106 | cpu_arch_tune_flags.bitfield.cpusse = 1; |
8107 | cpu_arch_tune_flags.bitfield.cpusse2 = 1; | |
8108 | } | |
9103f4f4 | 8109 | } |
3e73aa7c | 8110 | else if (!strcmp (default_arch, "i386")) |
9103f4f4 L |
8111 | { |
8112 | set_code_flag (CODE_32BIT); | |
0dfbf9d7 | 8113 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) |
40fb9820 L |
8114 | { |
8115 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
8116 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
8117 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
8118 | } | |
0dfbf9d7 | 8119 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
40fb9820 L |
8120 | { |
8121 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
8122 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
8123 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
8124 | } | |
9103f4f4 | 8125 | } |
3e73aa7c JH |
8126 | else |
8127 | as_fatal (_("Unknown architecture")); | |
252b5132 RH |
8128 | switch (OUTPUT_FLAVOR) |
8129 | { | |
872ce6ff L |
8130 | #ifdef TE_PEP |
8131 | case bfd_target_coff_flavour: | |
8132 | return flag_code == CODE_64BIT ? COFF_TARGET_FORMAT : "coff-i386"; | |
8133 | break; | |
8134 | #endif | |
4c63da97 AM |
8135 | #ifdef OBJ_MAYBE_AOUT |
8136 | case bfd_target_aout_flavour: | |
47926f60 | 8137 | return AOUT_TARGET_FORMAT; |
4c63da97 AM |
8138 | #endif |
8139 | #ifdef OBJ_MAYBE_COFF | |
252b5132 RH |
8140 | case bfd_target_coff_flavour: |
8141 | return "coff-i386"; | |
4c63da97 | 8142 | #endif |
3e73aa7c | 8143 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 8144 | case bfd_target_elf_flavour: |
3e73aa7c | 8145 | { |
e5cb08ac | 8146 | if (flag_code == CODE_64BIT) |
4fa24527 JB |
8147 | { |
8148 | object_64bit = 1; | |
8149 | use_rela_relocations = 1; | |
8150 | } | |
9d7cbccd | 8151 | return flag_code == CODE_64BIT ? ELF_TARGET_FORMAT64 : ELF_TARGET_FORMAT; |
3e73aa7c | 8152 | } |
4c63da97 | 8153 | #endif |
252b5132 RH |
8154 | default: |
8155 | abort (); | |
8156 | return NULL; | |
8157 | } | |
8158 | } | |
8159 | ||
47926f60 | 8160 | #endif /* OBJ_MAYBE_ more than one */ |
a847613f AM |
8161 | |
8162 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) | |
e3bb37b5 L |
8163 | void |
8164 | i386_elf_emit_arch_note (void) | |
a847613f | 8165 | { |
718ddfc0 | 8166 | if (IS_ELF && cpu_arch_name != NULL) |
a847613f AM |
8167 | { |
8168 | char *p; | |
8169 | asection *seg = now_seg; | |
8170 | subsegT subseg = now_subseg; | |
8171 | Elf_Internal_Note i_note; | |
8172 | Elf_External_Note e_note; | |
8173 | asection *note_secp; | |
8174 | int len; | |
8175 | ||
8176 | /* Create the .note section. */ | |
8177 | note_secp = subseg_new (".note", 0); | |
8178 | bfd_set_section_flags (stdoutput, | |
8179 | note_secp, | |
8180 | SEC_HAS_CONTENTS | SEC_READONLY); | |
8181 | ||
8182 | /* Process the arch string. */ | |
8183 | len = strlen (cpu_arch_name); | |
8184 | ||
8185 | i_note.namesz = len + 1; | |
8186 | i_note.descsz = 0; | |
8187 | i_note.type = NT_ARCH; | |
8188 | p = frag_more (sizeof (e_note.namesz)); | |
8189 | md_number_to_chars (p, (valueT) i_note.namesz, sizeof (e_note.namesz)); | |
8190 | p = frag_more (sizeof (e_note.descsz)); | |
8191 | md_number_to_chars (p, (valueT) i_note.descsz, sizeof (e_note.descsz)); | |
8192 | p = frag_more (sizeof (e_note.type)); | |
8193 | md_number_to_chars (p, (valueT) i_note.type, sizeof (e_note.type)); | |
8194 | p = frag_more (len + 1); | |
8195 | strcpy (p, cpu_arch_name); | |
8196 | ||
8197 | frag_align (2, 0, 0); | |
8198 | ||
8199 | subseg_set (seg, subseg); | |
8200 | } | |
8201 | } | |
8202 | #endif | |
252b5132 | 8203 | \f |
252b5132 RH |
8204 | symbolS * |
8205 | md_undefined_symbol (name) | |
8206 | char *name; | |
8207 | { | |
18dc2407 ILT |
8208 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
8209 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
8210 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
8211 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
8212 | { |
8213 | if (!GOT_symbol) | |
8214 | { | |
8215 | if (symbol_find (name)) | |
8216 | as_bad (_("GOT already in symbol table")); | |
8217 | GOT_symbol = symbol_new (name, undefined_section, | |
8218 | (valueT) 0, &zero_address_frag); | |
8219 | }; | |
8220 | return GOT_symbol; | |
8221 | } | |
252b5132 RH |
8222 | return 0; |
8223 | } | |
8224 | ||
8225 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 8226 | |
252b5132 RH |
8227 | valueT |
8228 | md_section_align (segment, size) | |
ab9da554 | 8229 | segT segment ATTRIBUTE_UNUSED; |
252b5132 RH |
8230 | valueT size; |
8231 | { | |
4c63da97 AM |
8232 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
8233 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
8234 | { | |
8235 | /* For a.out, force the section size to be aligned. If we don't do | |
8236 | this, BFD will align it for us, but it will not write out the | |
8237 | final bytes of the section. This may be a bug in BFD, but it is | |
8238 | easier to fix it here since that is how the other a.out targets | |
8239 | work. */ | |
8240 | int align; | |
8241 | ||
8242 | align = bfd_get_section_alignment (stdoutput, segment); | |
8243 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
8244 | } | |
252b5132 RH |
8245 | #endif |
8246 | ||
8247 | return size; | |
8248 | } | |
8249 | ||
8250 | /* On the i386, PC-relative offsets are relative to the start of the | |
8251 | next instruction. That is, the address of the offset, plus its | |
8252 | size, since the offset is always the last part of the insn. */ | |
8253 | ||
8254 | long | |
e3bb37b5 | 8255 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
8256 | { |
8257 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
8258 | } | |
8259 | ||
8260 | #ifndef I386COFF | |
8261 | ||
8262 | static void | |
e3bb37b5 | 8263 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 8264 | { |
29b0f896 | 8265 | int temp; |
252b5132 | 8266 | |
8a75718c JB |
8267 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8268 | if (IS_ELF) | |
8269 | obj_elf_section_change_hook (); | |
8270 | #endif | |
252b5132 RH |
8271 | temp = get_absolute_expression (); |
8272 | subseg_set (bss_section, (subsegT) temp); | |
8273 | demand_empty_rest_of_line (); | |
8274 | } | |
8275 | ||
8276 | #endif | |
8277 | ||
252b5132 | 8278 | void |
e3bb37b5 | 8279 | i386_validate_fix (fixS *fixp) |
252b5132 RH |
8280 | { |
8281 | if (fixp->fx_subsy && fixp->fx_subsy == GOT_symbol) | |
8282 | { | |
23df1078 JH |
8283 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
8284 | { | |
4fa24527 | 8285 | if (!object_64bit) |
23df1078 JH |
8286 | abort (); |
8287 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
8288 | } | |
8289 | else | |
8290 | { | |
4fa24527 | 8291 | if (!object_64bit) |
d6ab8113 JB |
8292 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; |
8293 | else | |
8294 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
23df1078 | 8295 | } |
252b5132 RH |
8296 | fixp->fx_subsy = 0; |
8297 | } | |
8298 | } | |
8299 | ||
252b5132 RH |
8300 | arelent * |
8301 | tc_gen_reloc (section, fixp) | |
ab9da554 | 8302 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
8303 | fixS *fixp; |
8304 | { | |
8305 | arelent *rel; | |
8306 | bfd_reloc_code_real_type code; | |
8307 | ||
8308 | switch (fixp->fx_r_type) | |
8309 | { | |
3e73aa7c JH |
8310 | case BFD_RELOC_X86_64_PLT32: |
8311 | case BFD_RELOC_X86_64_GOT32: | |
8312 | case BFD_RELOC_X86_64_GOTPCREL: | |
252b5132 RH |
8313 | case BFD_RELOC_386_PLT32: |
8314 | case BFD_RELOC_386_GOT32: | |
8315 | case BFD_RELOC_386_GOTOFF: | |
8316 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
8317 | case BFD_RELOC_386_TLS_GD: |
8318 | case BFD_RELOC_386_TLS_LDM: | |
8319 | case BFD_RELOC_386_TLS_LDO_32: | |
8320 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
8321 | case BFD_RELOC_386_TLS_IE: |
8322 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
8323 | case BFD_RELOC_386_TLS_LE_32: |
8324 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
8325 | case BFD_RELOC_386_TLS_GOTDESC: |
8326 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
8327 | case BFD_RELOC_X86_64_TLSGD: |
8328 | case BFD_RELOC_X86_64_TLSLD: | |
8329 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 8330 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
8331 | case BFD_RELOC_X86_64_GOTTPOFF: |
8332 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
8333 | case BFD_RELOC_X86_64_TPOFF64: |
8334 | case BFD_RELOC_X86_64_GOTOFF64: | |
8335 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
8336 | case BFD_RELOC_X86_64_GOT64: |
8337 | case BFD_RELOC_X86_64_GOTPCREL64: | |
8338 | case BFD_RELOC_X86_64_GOTPC64: | |
8339 | case BFD_RELOC_X86_64_GOTPLT64: | |
8340 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
8341 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
8342 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
8343 | case BFD_RELOC_RVA: |
8344 | case BFD_RELOC_VTABLE_ENTRY: | |
8345 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
8346 | #ifdef TE_PE |
8347 | case BFD_RELOC_32_SECREL: | |
8348 | #endif | |
252b5132 RH |
8349 | code = fixp->fx_r_type; |
8350 | break; | |
dbbaec26 L |
8351 | case BFD_RELOC_X86_64_32S: |
8352 | if (!fixp->fx_pcrel) | |
8353 | { | |
8354 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
8355 | code = fixp->fx_r_type; | |
8356 | break; | |
8357 | } | |
252b5132 | 8358 | default: |
93382f6d | 8359 | if (fixp->fx_pcrel) |
252b5132 | 8360 | { |
93382f6d AM |
8361 | switch (fixp->fx_size) |
8362 | { | |
8363 | default: | |
b091f402 AM |
8364 | as_bad_where (fixp->fx_file, fixp->fx_line, |
8365 | _("can not do %d byte pc-relative relocation"), | |
8366 | fixp->fx_size); | |
93382f6d AM |
8367 | code = BFD_RELOC_32_PCREL; |
8368 | break; | |
8369 | case 1: code = BFD_RELOC_8_PCREL; break; | |
8370 | case 2: code = BFD_RELOC_16_PCREL; break; | |
8371 | case 4: code = BFD_RELOC_32_PCREL; break; | |
d6ab8113 JB |
8372 | #ifdef BFD64 |
8373 | case 8: code = BFD_RELOC_64_PCREL; break; | |
8374 | #endif | |
93382f6d AM |
8375 | } |
8376 | } | |
8377 | else | |
8378 | { | |
8379 | switch (fixp->fx_size) | |
8380 | { | |
8381 | default: | |
b091f402 AM |
8382 | as_bad_where (fixp->fx_file, fixp->fx_line, |
8383 | _("can not do %d byte relocation"), | |
8384 | fixp->fx_size); | |
93382f6d AM |
8385 | code = BFD_RELOC_32; |
8386 | break; | |
8387 | case 1: code = BFD_RELOC_8; break; | |
8388 | case 2: code = BFD_RELOC_16; break; | |
8389 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 8390 | #ifdef BFD64 |
3e73aa7c | 8391 | case 8: code = BFD_RELOC_64; break; |
937149dd | 8392 | #endif |
93382f6d | 8393 | } |
252b5132 RH |
8394 | } |
8395 | break; | |
8396 | } | |
252b5132 | 8397 | |
d182319b JB |
8398 | if ((code == BFD_RELOC_32 |
8399 | || code == BFD_RELOC_32_PCREL | |
8400 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
8401 | && GOT_symbol |
8402 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 8403 | { |
4fa24527 | 8404 | if (!object_64bit) |
d6ab8113 JB |
8405 | code = BFD_RELOC_386_GOTPC; |
8406 | else | |
8407 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 8408 | } |
7b81dfbb AJ |
8409 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
8410 | && GOT_symbol | |
8411 | && fixp->fx_addsy == GOT_symbol) | |
8412 | { | |
8413 | code = BFD_RELOC_X86_64_GOTPC64; | |
8414 | } | |
252b5132 RH |
8415 | |
8416 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
8417 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
8418 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
8419 | |
8420 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 8421 | |
3e73aa7c JH |
8422 | if (!use_rela_relocations) |
8423 | { | |
8424 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
8425 | vtable entry to be used in the relocation's section offset. */ | |
8426 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
8427 | rel->address = fixp->fx_offset; | |
252b5132 | 8428 | |
c6682705 | 8429 | rel->addend = 0; |
3e73aa7c JH |
8430 | } |
8431 | /* Use the rela in 64bit mode. */ | |
252b5132 | 8432 | else |
3e73aa7c | 8433 | { |
062cd5e7 AS |
8434 | if (!fixp->fx_pcrel) |
8435 | rel->addend = fixp->fx_offset; | |
8436 | else | |
8437 | switch (code) | |
8438 | { | |
8439 | case BFD_RELOC_X86_64_PLT32: | |
8440 | case BFD_RELOC_X86_64_GOT32: | |
8441 | case BFD_RELOC_X86_64_GOTPCREL: | |
bffbf940 JJ |
8442 | case BFD_RELOC_X86_64_TLSGD: |
8443 | case BFD_RELOC_X86_64_TLSLD: | |
8444 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
8445 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
8446 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
8447 | rel->addend = fixp->fx_offset - fixp->fx_size; |
8448 | break; | |
8449 | default: | |
8450 | rel->addend = (section->vma | |
8451 | - fixp->fx_size | |
8452 | + fixp->fx_addnumber | |
8453 | + md_pcrel_from (fixp)); | |
8454 | break; | |
8455 | } | |
3e73aa7c JH |
8456 | } |
8457 | ||
252b5132 RH |
8458 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
8459 | if (rel->howto == NULL) | |
8460 | { | |
8461 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 8462 | _("cannot represent relocation type %s"), |
252b5132 RH |
8463 | bfd_get_reloc_code_name (code)); |
8464 | /* Set howto to a garbage value so that we can keep going. */ | |
8465 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
8466 | assert (rel->howto != NULL); | |
8467 | } | |
8468 | ||
8469 | return rel; | |
8470 | } | |
8471 | ||
64a0c779 DN |
8472 | \f |
8473 | /* Parse operands using Intel syntax. This implements a recursive descent | |
8474 | parser based on the BNF grammar published in Appendix B of the MASM 6.1 | |
8475 | Programmer's Guide. | |
8476 | ||
8477 | FIXME: We do not recognize the full operand grammar defined in the MASM | |
8478 | documentation. In particular, all the structure/union and | |
8479 | high-level macro operands are missing. | |
8480 | ||
8481 | Uppercase words are terminals, lower case words are non-terminals. | |
8482 | Objects surrounded by double brackets '[[' ']]' are optional. Vertical | |
8483 | bars '|' denote choices. Most grammar productions are implemented in | |
8484 | functions called 'intel_<production>'. | |
8485 | ||
8486 | Initial production is 'expr'. | |
8487 | ||
9306ca4a | 8488 | addOp + | - |
64a0c779 DN |
8489 | |
8490 | alpha [a-zA-Z] | |
8491 | ||
9306ca4a JB |
8492 | binOp & | AND | \| | OR | ^ | XOR |
8493 | ||
64a0c779 DN |
8494 | byteRegister AL | AH | BL | BH | CL | CH | DL | DH |
8495 | ||
8496 | constant digits [[ radixOverride ]] | |
8497 | ||
c0f3af97 | 8498 | dataType BYTE | WORD | DWORD | FWORD | QWORD | TBYTE | OWORD | XMMWORD | YMMWORD |
64a0c779 DN |
8499 | |
8500 | digits decdigit | |
b77a7acd AJ |
8501 | | digits decdigit |
8502 | | digits hexdigit | |
64a0c779 DN |
8503 | |
8504 | decdigit [0-9] | |
8505 | ||
9306ca4a JB |
8506 | e04 e04 addOp e05 |
8507 | | e05 | |
8508 | ||
8509 | e05 e05 binOp e06 | |
b77a7acd | 8510 | | e06 |
64a0c779 DN |
8511 | |
8512 | e06 e06 mulOp e09 | |
b77a7acd | 8513 | | e09 |
64a0c779 DN |
8514 | |
8515 | e09 OFFSET e10 | |
a724f0f4 JB |
8516 | | SHORT e10 |
8517 | | + e10 | |
8518 | | - e10 | |
9306ca4a JB |
8519 | | ~ e10 |
8520 | | NOT e10 | |
64a0c779 DN |
8521 | | e09 PTR e10 |
8522 | | e09 : e10 | |
8523 | | e10 | |
8524 | ||
8525 | e10 e10 [ expr ] | |
b77a7acd | 8526 | | e11 |
64a0c779 DN |
8527 | |
8528 | e11 ( expr ) | |
b77a7acd | 8529 | | [ expr ] |
64a0c779 DN |
8530 | | constant |
8531 | | dataType | |
8532 | | id | |
8533 | | $ | |
8534 | | register | |
8535 | ||
a724f0f4 | 8536 | => expr expr cmpOp e04 |
9306ca4a | 8537 | | e04 |
64a0c779 DN |
8538 | |
8539 | gpRegister AX | EAX | BX | EBX | CX | ECX | DX | EDX | |
b77a7acd | 8540 | | BP | EBP | SP | ESP | DI | EDI | SI | ESI |
64a0c779 DN |
8541 | |
8542 | hexdigit a | b | c | d | e | f | |
b77a7acd | 8543 | | A | B | C | D | E | F |
64a0c779 DN |
8544 | |
8545 | id alpha | |
b77a7acd | 8546 | | id alpha |
64a0c779 DN |
8547 | | id decdigit |
8548 | ||
9306ca4a | 8549 | mulOp * | / | % | MOD | << | SHL | >> | SHR |
64a0c779 DN |
8550 | |
8551 | quote " | ' | |
8552 | ||
8553 | register specialRegister | |
b77a7acd | 8554 | | gpRegister |
64a0c779 DN |
8555 | | byteRegister |
8556 | ||
8557 | segmentRegister CS | DS | ES | FS | GS | SS | |
8558 | ||
9306ca4a | 8559 | specialRegister CR0 | CR2 | CR3 | CR4 |
b77a7acd | 8560 | | DR0 | DR1 | DR2 | DR3 | DR6 | DR7 |
64a0c779 DN |
8561 | | TR3 | TR4 | TR5 | TR6 | TR7 |
8562 | ||
64a0c779 DN |
8563 | We simplify the grammar in obvious places (e.g., register parsing is |
8564 | done by calling parse_register) and eliminate immediate left recursion | |
8565 | to implement a recursive-descent parser. | |
8566 | ||
a724f0f4 JB |
8567 | expr e04 expr' |
8568 | ||
8569 | expr' cmpOp e04 expr' | |
8570 | | Empty | |
9306ca4a JB |
8571 | |
8572 | e04 e05 e04' | |
8573 | ||
8574 | e04' addOp e05 e04' | |
8575 | | Empty | |
64a0c779 DN |
8576 | |
8577 | e05 e06 e05' | |
8578 | ||
9306ca4a | 8579 | e05' binOp e06 e05' |
b77a7acd | 8580 | | Empty |
64a0c779 DN |
8581 | |
8582 | e06 e09 e06' | |
8583 | ||
8584 | e06' mulOp e09 e06' | |
b77a7acd | 8585 | | Empty |
64a0c779 DN |
8586 | |
8587 | e09 OFFSET e10 e09' | |
a724f0f4 JB |
8588 | | SHORT e10' |
8589 | | + e10' | |
8590 | | - e10' | |
8591 | | ~ e10' | |
8592 | | NOT e10' | |
b77a7acd | 8593 | | e10 e09' |
64a0c779 DN |
8594 | |
8595 | e09' PTR e10 e09' | |
b77a7acd | 8596 | | : e10 e09' |
64a0c779 DN |
8597 | | Empty |
8598 | ||
8599 | e10 e11 e10' | |
8600 | ||
8601 | e10' [ expr ] e10' | |
b77a7acd | 8602 | | Empty |
64a0c779 DN |
8603 | |
8604 | e11 ( expr ) | |
b77a7acd | 8605 | | [ expr ] |
64a0c779 DN |
8606 | | BYTE |
8607 | | WORD | |
8608 | | DWORD | |
9306ca4a | 8609 | | FWORD |
64a0c779 | 8610 | | QWORD |
9306ca4a JB |
8611 | | TBYTE |
8612 | | OWORD | |
8613 | | XMMWORD | |
c0f3af97 | 8614 | | YMMWORD |
64a0c779 DN |
8615 | | . |
8616 | | $ | |
8617 | | register | |
8618 | | id | |
8619 | | constant */ | |
8620 | ||
8621 | /* Parsing structure for the intel syntax parser. Used to implement the | |
8622 | semantic actions for the operand grammar. */ | |
8623 | struct intel_parser_s | |
8624 | { | |
8625 | char *op_string; /* The string being parsed. */ | |
8626 | int got_a_float; /* Whether the operand is a float. */ | |
4a1805b1 | 8627 | int op_modifier; /* Operand modifier. */ |
64a0c779 | 8628 | int is_mem; /* 1 if operand is memory reference. */ |
4eed87de AM |
8629 | int in_offset; /* >=1 if parsing operand of offset. */ |
8630 | int in_bracket; /* >=1 if parsing operand in brackets. */ | |
64a0c779 DN |
8631 | const reg_entry *reg; /* Last register reference found. */ |
8632 | char *disp; /* Displacement string being built. */ | |
a724f0f4 | 8633 | char *next_operand; /* Resume point when splitting operands. */ |
64a0c779 DN |
8634 | }; |
8635 | ||
8636 | static struct intel_parser_s intel_parser; | |
8637 | ||
8638 | /* Token structure for parsing intel syntax. */ | |
8639 | struct intel_token | |
8640 | { | |
8641 | int code; /* Token code. */ | |
8642 | const reg_entry *reg; /* Register entry for register tokens. */ | |
8643 | char *str; /* String representation. */ | |
8644 | }; | |
8645 | ||
8646 | static struct intel_token cur_token, prev_token; | |
8647 | ||
50705ef4 AM |
8648 | /* Token codes for the intel parser. Since T_SHORT is already used |
8649 | by COFF, undefine it first to prevent a warning. */ | |
64a0c779 DN |
8650 | #define T_NIL -1 |
8651 | #define T_CONST 1 | |
8652 | #define T_REG 2 | |
8653 | #define T_BYTE 3 | |
8654 | #define T_WORD 4 | |
9306ca4a JB |
8655 | #define T_DWORD 5 |
8656 | #define T_FWORD 6 | |
8657 | #define T_QWORD 7 | |
8658 | #define T_TBYTE 8 | |
8659 | #define T_XMMWORD 9 | |
50705ef4 | 8660 | #undef T_SHORT |
9306ca4a JB |
8661 | #define T_SHORT 10 |
8662 | #define T_OFFSET 11 | |
8663 | #define T_PTR 12 | |
8664 | #define T_ID 13 | |
8665 | #define T_SHL 14 | |
8666 | #define T_SHR 15 | |
c0f3af97 | 8667 | #define T_YMMWORD 16 |
64a0c779 DN |
8668 | |
8669 | /* Prototypes for intel parser functions. */ | |
e3bb37b5 L |
8670 | static int intel_match_token (int); |
8671 | static void intel_putback_token (void); | |
8672 | static void intel_get_token (void); | |
8673 | static int intel_expr (void); | |
8674 | static int intel_e04 (void); | |
8675 | static int intel_e05 (void); | |
8676 | static int intel_e06 (void); | |
8677 | static int intel_e09 (void); | |
8678 | static int intel_e10 (void); | |
8679 | static int intel_e11 (void); | |
64a0c779 | 8680 | |
64a0c779 | 8681 | static int |
e3bb37b5 | 8682 | i386_intel_operand (char *operand_string, int got_a_float) |
64a0c779 DN |
8683 | { |
8684 | int ret; | |
8685 | char *p; | |
8686 | ||
a724f0f4 JB |
8687 | p = intel_parser.op_string = xstrdup (operand_string); |
8688 | intel_parser.disp = (char *) xmalloc (strlen (operand_string) + 1); | |
8689 | ||
8690 | for (;;) | |
64a0c779 | 8691 | { |
a724f0f4 JB |
8692 | /* Initialize token holders. */ |
8693 | cur_token.code = prev_token.code = T_NIL; | |
8694 | cur_token.reg = prev_token.reg = NULL; | |
8695 | cur_token.str = prev_token.str = NULL; | |
8696 | ||
8697 | /* Initialize parser structure. */ | |
8698 | intel_parser.got_a_float = got_a_float; | |
8699 | intel_parser.op_modifier = 0; | |
8700 | intel_parser.is_mem = 0; | |
8701 | intel_parser.in_offset = 0; | |
8702 | intel_parser.in_bracket = 0; | |
8703 | intel_parser.reg = NULL; | |
8704 | intel_parser.disp[0] = '\0'; | |
8705 | intel_parser.next_operand = NULL; | |
8706 | ||
8707 | /* Read the first token and start the parser. */ | |
8708 | intel_get_token (); | |
8709 | ret = intel_expr (); | |
8710 | ||
8711 | if (!ret) | |
8712 | break; | |
8713 | ||
9306ca4a JB |
8714 | if (cur_token.code != T_NIL) |
8715 | { | |
8716 | as_bad (_("invalid operand for '%s' ('%s' unexpected)"), | |
8717 | current_templates->start->name, cur_token.str); | |
8718 | ret = 0; | |
8719 | } | |
64a0c779 DN |
8720 | /* If we found a memory reference, hand it over to i386_displacement |
8721 | to fill in the rest of the operand fields. */ | |
9306ca4a | 8722 | else if (intel_parser.is_mem) |
64a0c779 DN |
8723 | { |
8724 | if ((i.mem_operands == 1 | |
40fb9820 | 8725 | && !current_templates->start->opcode_modifier.isstring) |
64a0c779 DN |
8726 | || i.mem_operands == 2) |
8727 | { | |
8728 | as_bad (_("too many memory references for '%s'"), | |
8729 | current_templates->start->name); | |
8730 | ret = 0; | |
8731 | } | |
8732 | else | |
8733 | { | |
8734 | char *s = intel_parser.disp; | |
5c07affc | 8735 | i.types[this_operand].bitfield.mem = 1; |
64a0c779 DN |
8736 | i.mem_operands++; |
8737 | ||
a724f0f4 JB |
8738 | if (!quiet_warnings && intel_parser.is_mem < 0) |
8739 | /* See the comments in intel_bracket_expr. */ | |
8740 | as_warn (_("Treating `%s' as memory reference"), operand_string); | |
8741 | ||
64a0c779 DN |
8742 | /* Add the displacement expression. */ |
8743 | if (*s != '\0') | |
a4622f40 AM |
8744 | ret = i386_displacement (s, s + strlen (s)); |
8745 | if (ret) | |
a724f0f4 JB |
8746 | { |
8747 | /* Swap base and index in 16-bit memory operands like | |
8748 | [si+bx]. Since i386_index_check is also used in AT&T | |
8749 | mode we have to do that here. */ | |
8750 | if (i.base_reg | |
8751 | && i.index_reg | |
40fb9820 L |
8752 | && i.base_reg->reg_type.bitfield.reg16 |
8753 | && i.index_reg->reg_type.bitfield.reg16 | |
a724f0f4 JB |
8754 | && i.base_reg->reg_num >= 6 |
8755 | && i.index_reg->reg_num < 6) | |
8756 | { | |
8757 | const reg_entry *base = i.index_reg; | |
8758 | ||
8759 | i.index_reg = i.base_reg; | |
8760 | i.base_reg = base; | |
8761 | } | |
8762 | ret = i386_index_check (operand_string); | |
8763 | } | |
64a0c779 DN |
8764 | } |
8765 | } | |
8766 | ||
8767 | /* Constant and OFFSET expressions are handled by i386_immediate. */ | |
a724f0f4 | 8768 | else if ((intel_parser.op_modifier & (1 << T_OFFSET)) |
64a0c779 | 8769 | || intel_parser.reg == NULL) |
b7240065 JB |
8770 | { |
8771 | if (i.mem_operands < 2 && i.seg[i.mem_operands]) | |
8772 | { | |
8773 | if (!(intel_parser.op_modifier & (1 << T_OFFSET))) | |
8774 | as_warn (_("Segment override ignored")); | |
8775 | i.seg[i.mem_operands] = NULL; | |
8776 | } | |
8777 | ret = i386_immediate (intel_parser.disp); | |
8778 | } | |
a724f0f4 JB |
8779 | |
8780 | if (intel_parser.next_operand && this_operand >= MAX_OPERANDS - 1) | |
4eed87de | 8781 | ret = 0; |
a724f0f4 JB |
8782 | if (!ret || !intel_parser.next_operand) |
8783 | break; | |
8784 | intel_parser.op_string = intel_parser.next_operand; | |
8785 | this_operand = i.operands++; | |
7d5e4556 | 8786 | i.types[this_operand].bitfield.unspecified = 1; |
64a0c779 DN |
8787 | } |
8788 | ||
8789 | free (p); | |
8790 | free (intel_parser.disp); | |
8791 | ||
8792 | return ret; | |
8793 | } | |
8794 | ||
a724f0f4 JB |
8795 | #define NUM_ADDRESS_REGS (!!i.base_reg + !!i.index_reg) |
8796 | ||
8797 | /* expr e04 expr' | |
8798 | ||
8799 | expr' cmpOp e04 expr' | |
8800 | | Empty */ | |
64a0c779 | 8801 | static int |
e3bb37b5 | 8802 | intel_expr (void) |
64a0c779 | 8803 | { |
a724f0f4 JB |
8804 | /* XXX Implement the comparison operators. */ |
8805 | return intel_e04 (); | |
9306ca4a JB |
8806 | } |
8807 | ||
a724f0f4 | 8808 | /* e04 e05 e04' |
9306ca4a | 8809 | |
a724f0f4 | 8810 | e04' addOp e05 e04' |
9306ca4a JB |
8811 | | Empty */ |
8812 | static int | |
e3bb37b5 | 8813 | intel_e04 (void) |
9306ca4a | 8814 | { |
a724f0f4 | 8815 | int nregs = -1; |
9306ca4a | 8816 | |
a724f0f4 | 8817 | for (;;) |
9306ca4a | 8818 | { |
a724f0f4 JB |
8819 | if (!intel_e05()) |
8820 | return 0; | |
9306ca4a | 8821 | |
a724f0f4 JB |
8822 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
8823 | i.base_reg = i386_regtab + REGNAM_AL; /* al is invalid as base */ | |
9306ca4a | 8824 | |
a724f0f4 JB |
8825 | if (cur_token.code == '+') |
8826 | nregs = -1; | |
8827 | else if (cur_token.code == '-') | |
8828 | nregs = NUM_ADDRESS_REGS; | |
8829 | else | |
8830 | return 1; | |
64a0c779 | 8831 | |
a724f0f4 JB |
8832 | strcat (intel_parser.disp, cur_token.str); |
8833 | intel_match_token (cur_token.code); | |
8834 | } | |
64a0c779 DN |
8835 | } |
8836 | ||
64a0c779 DN |
8837 | /* e05 e06 e05' |
8838 | ||
9306ca4a | 8839 | e05' binOp e06 e05' |
64a0c779 DN |
8840 | | Empty */ |
8841 | static int | |
e3bb37b5 | 8842 | intel_e05 (void) |
64a0c779 | 8843 | { |
a724f0f4 | 8844 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 8845 | |
a724f0f4 | 8846 | for (;;) |
64a0c779 | 8847 | { |
a724f0f4 JB |
8848 | if (!intel_e06()) |
8849 | return 0; | |
8850 | ||
4eed87de AM |
8851 | if (cur_token.code == '&' |
8852 | || cur_token.code == '|' | |
8853 | || cur_token.code == '^') | |
a724f0f4 JB |
8854 | { |
8855 | char str[2]; | |
8856 | ||
8857 | str[0] = cur_token.code; | |
8858 | str[1] = 0; | |
8859 | strcat (intel_parser.disp, str); | |
8860 | } | |
8861 | else | |
8862 | break; | |
9306ca4a | 8863 | |
64a0c779 DN |
8864 | intel_match_token (cur_token.code); |
8865 | ||
a724f0f4 JB |
8866 | if (nregs < 0) |
8867 | nregs = ~nregs; | |
64a0c779 | 8868 | } |
a724f0f4 JB |
8869 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
8870 | i.base_reg = i386_regtab + REGNAM_AL + 1; /* cl is invalid as base */ | |
8871 | return 1; | |
4a1805b1 | 8872 | } |
64a0c779 DN |
8873 | |
8874 | /* e06 e09 e06' | |
8875 | ||
8876 | e06' mulOp e09 e06' | |
b77a7acd | 8877 | | Empty */ |
64a0c779 | 8878 | static int |
e3bb37b5 | 8879 | intel_e06 (void) |
64a0c779 | 8880 | { |
a724f0f4 | 8881 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 8882 | |
a724f0f4 | 8883 | for (;;) |
64a0c779 | 8884 | { |
a724f0f4 JB |
8885 | if (!intel_e09()) |
8886 | return 0; | |
9306ca4a | 8887 | |
4eed87de AM |
8888 | if (cur_token.code == '*' |
8889 | || cur_token.code == '/' | |
8890 | || cur_token.code == '%') | |
a724f0f4 JB |
8891 | { |
8892 | char str[2]; | |
9306ca4a | 8893 | |
a724f0f4 JB |
8894 | str[0] = cur_token.code; |
8895 | str[1] = 0; | |
8896 | strcat (intel_parser.disp, str); | |
8897 | } | |
8898 | else if (cur_token.code == T_SHL) | |
8899 | strcat (intel_parser.disp, "<<"); | |
8900 | else if (cur_token.code == T_SHR) | |
8901 | strcat (intel_parser.disp, ">>"); | |
8902 | else | |
8903 | break; | |
9306ca4a | 8904 | |
64e74474 | 8905 | intel_match_token (cur_token.code); |
64a0c779 | 8906 | |
a724f0f4 JB |
8907 | if (nregs < 0) |
8908 | nregs = ~nregs; | |
64a0c779 | 8909 | } |
a724f0f4 JB |
8910 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
8911 | i.base_reg = i386_regtab + REGNAM_AL + 2; /* dl is invalid as base */ | |
8912 | return 1; | |
64a0c779 DN |
8913 | } |
8914 | ||
a724f0f4 JB |
8915 | /* e09 OFFSET e09 |
8916 | | SHORT e09 | |
8917 | | + e09 | |
8918 | | - e09 | |
8919 | | ~ e09 | |
8920 | | NOT e09 | |
9306ca4a JB |
8921 | | e10 e09' |
8922 | ||
64a0c779 | 8923 | e09' PTR e10 e09' |
b77a7acd | 8924 | | : e10 e09' |
64a0c779 DN |
8925 | | Empty */ |
8926 | static int | |
e3bb37b5 | 8927 | intel_e09 (void) |
64a0c779 | 8928 | { |
a724f0f4 JB |
8929 | int nregs = ~NUM_ADDRESS_REGS; |
8930 | int in_offset = 0; | |
8931 | ||
8932 | for (;;) | |
64a0c779 | 8933 | { |
a724f0f4 JB |
8934 | /* Don't consume constants here. */ |
8935 | if (cur_token.code == '+' || cur_token.code == '-') | |
8936 | { | |
8937 | /* Need to look one token ahead - if the next token | |
8938 | is a constant, the current token is its sign. */ | |
8939 | int next_code; | |
8940 | ||
8941 | intel_match_token (cur_token.code); | |
8942 | next_code = cur_token.code; | |
8943 | intel_putback_token (); | |
8944 | if (next_code == T_CONST) | |
8945 | break; | |
8946 | } | |
8947 | ||
8948 | /* e09 OFFSET e09 */ | |
8949 | if (cur_token.code == T_OFFSET) | |
8950 | { | |
8951 | if (!in_offset++) | |
8952 | ++intel_parser.in_offset; | |
8953 | } | |
8954 | ||
8955 | /* e09 SHORT e09 */ | |
8956 | else if (cur_token.code == T_SHORT) | |
8957 | intel_parser.op_modifier |= 1 << T_SHORT; | |
8958 | ||
8959 | /* e09 + e09 */ | |
8960 | else if (cur_token.code == '+') | |
8961 | strcat (intel_parser.disp, "+"); | |
8962 | ||
8963 | /* e09 - e09 | |
8964 | | ~ e09 | |
8965 | | NOT e09 */ | |
8966 | else if (cur_token.code == '-' || cur_token.code == '~') | |
8967 | { | |
8968 | char str[2]; | |
64a0c779 | 8969 | |
a724f0f4 JB |
8970 | if (nregs < 0) |
8971 | nregs = ~nregs; | |
8972 | str[0] = cur_token.code; | |
8973 | str[1] = 0; | |
8974 | strcat (intel_parser.disp, str); | |
8975 | } | |
8976 | ||
8977 | /* e09 e10 e09' */ | |
8978 | else | |
8979 | break; | |
8980 | ||
8981 | intel_match_token (cur_token.code); | |
64a0c779 DN |
8982 | } |
8983 | ||
a724f0f4 | 8984 | for (;;) |
9306ca4a | 8985 | { |
a724f0f4 JB |
8986 | if (!intel_e10 ()) |
8987 | return 0; | |
9306ca4a | 8988 | |
a724f0f4 JB |
8989 | /* e09' PTR e10 e09' */ |
8990 | if (cur_token.code == T_PTR) | |
8991 | { | |
8992 | char suffix; | |
9306ca4a | 8993 | |
a724f0f4 | 8994 | if (prev_token.code == T_BYTE) |
7d5e4556 L |
8995 | { |
8996 | suffix = BYTE_MNEM_SUFFIX; | |
8997 | i.types[this_operand].bitfield.byte = 1; | |
8998 | } | |
9306ca4a | 8999 | |
a724f0f4 JB |
9000 | else if (prev_token.code == T_WORD) |
9001 | { | |
34b772a6 JB |
9002 | if ((current_templates->start->name[0] == 'l' |
9003 | && current_templates->start->name[2] == 's' | |
9004 | && current_templates->start->name[3] == 0) | |
9005 | || current_templates->start->base_opcode == 0x62 /* bound */) | |
a724f0f4 JB |
9006 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ |
9007 | else if (intel_parser.got_a_float == 2) /* "fi..." */ | |
9008 | suffix = SHORT_MNEM_SUFFIX; | |
9009 | else | |
9010 | suffix = WORD_MNEM_SUFFIX; | |
7d5e4556 | 9011 | i.types[this_operand].bitfield.word = 1; |
a724f0f4 | 9012 | } |
64a0c779 | 9013 | |
a724f0f4 JB |
9014 | else if (prev_token.code == T_DWORD) |
9015 | { | |
34b772a6 JB |
9016 | if ((current_templates->start->name[0] == 'l' |
9017 | && current_templates->start->name[2] == 's' | |
9018 | && current_templates->start->name[3] == 0) | |
9019 | || current_templates->start->base_opcode == 0x62 /* bound */) | |
a724f0f4 JB |
9020 | suffix = WORD_MNEM_SUFFIX; |
9021 | else if (flag_code == CODE_16BIT | |
40fb9820 L |
9022 | && (current_templates->start->opcode_modifier.jump |
9023 | || current_templates->start->opcode_modifier.jumpdword)) | |
a724f0f4 JB |
9024 | suffix = LONG_DOUBLE_MNEM_SUFFIX; |
9025 | else if (intel_parser.got_a_float == 1) /* "f..." */ | |
9026 | suffix = SHORT_MNEM_SUFFIX; | |
9027 | else | |
9028 | suffix = LONG_MNEM_SUFFIX; | |
7d5e4556 | 9029 | i.types[this_operand].bitfield.dword = 1; |
a724f0f4 | 9030 | } |
9306ca4a | 9031 | |
a724f0f4 JB |
9032 | else if (prev_token.code == T_FWORD) |
9033 | { | |
9034 | if (current_templates->start->name[0] == 'l' | |
9035 | && current_templates->start->name[2] == 's' | |
9036 | && current_templates->start->name[3] == 0) | |
9037 | suffix = LONG_MNEM_SUFFIX; | |
9038 | else if (!intel_parser.got_a_float) | |
9039 | { | |
9040 | if (flag_code == CODE_16BIT) | |
9041 | add_prefix (DATA_PREFIX_OPCODE); | |
9042 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
9043 | } | |
9044 | else | |
9045 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
7d5e4556 | 9046 | i.types[this_operand].bitfield.fword = 1; |
a724f0f4 | 9047 | } |
64a0c779 | 9048 | |
a724f0f4 JB |
9049 | else if (prev_token.code == T_QWORD) |
9050 | { | |
34b772a6 JB |
9051 | if (current_templates->start->base_opcode == 0x62 /* bound */ |
9052 | || intel_parser.got_a_float == 1) /* "f..." */ | |
a724f0f4 JB |
9053 | suffix = LONG_MNEM_SUFFIX; |
9054 | else | |
34b772a6 | 9055 | suffix = QWORD_MNEM_SUFFIX; |
7d5e4556 | 9056 | i.types[this_operand].bitfield.qword = 1; |
a724f0f4 | 9057 | } |
64a0c779 | 9058 | |
a724f0f4 JB |
9059 | else if (prev_token.code == T_TBYTE) |
9060 | { | |
9061 | if (intel_parser.got_a_float == 1) | |
9062 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
9063 | else | |
9064 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
9065 | } | |
9306ca4a | 9066 | |
a724f0f4 | 9067 | else if (prev_token.code == T_XMMWORD) |
9306ca4a | 9068 | { |
582d5edd | 9069 | suffix = XMMWORD_MNEM_SUFFIX; |
7d5e4556 | 9070 | i.types[this_operand].bitfield.xmmword = 1; |
9306ca4a | 9071 | } |
64a0c779 | 9072 | |
c0f3af97 L |
9073 | else if (prev_token.code == T_YMMWORD) |
9074 | { | |
9075 | suffix = YMMWORD_MNEM_SUFFIX; | |
9076 | i.types[this_operand].bitfield.ymmword = 1; | |
9077 | } | |
9078 | ||
f16b83df | 9079 | else |
a724f0f4 JB |
9080 | { |
9081 | as_bad (_("Unknown operand modifier `%s'"), prev_token.str); | |
9082 | return 0; | |
9083 | } | |
9084 | ||
7d5e4556 L |
9085 | i.types[this_operand].bitfield.unspecified = 0; |
9086 | ||
435acd52 JB |
9087 | /* Operands for jump/call using 'ptr' notation denote absolute |
9088 | addresses. */ | |
40fb9820 L |
9089 | if (current_templates->start->opcode_modifier.jump |
9090 | || current_templates->start->opcode_modifier.jumpdword) | |
9091 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 9092 | |
a724f0f4 JB |
9093 | if (current_templates->start->base_opcode == 0x8d /* lea */) |
9094 | ; | |
9095 | else if (!i.suffix) | |
9096 | i.suffix = suffix; | |
9097 | else if (i.suffix != suffix) | |
9098 | { | |
9099 | as_bad (_("Conflicting operand modifiers")); | |
9100 | return 0; | |
9101 | } | |
64a0c779 | 9102 | |
9306ca4a JB |
9103 | } |
9104 | ||
a724f0f4 JB |
9105 | /* e09' : e10 e09' */ |
9106 | else if (cur_token.code == ':') | |
9306ca4a | 9107 | { |
a724f0f4 JB |
9108 | if (prev_token.code != T_REG) |
9109 | { | |
9110 | /* While {call,jmp} SSSS:OOOO is MASM syntax only when SSSS is a | |
9111 | segment/group identifier (which we don't have), using comma | |
9112 | as the operand separator there is even less consistent, since | |
9113 | there all branches only have a single operand. */ | |
9114 | if (this_operand != 0 | |
9115 | || intel_parser.in_offset | |
9116 | || intel_parser.in_bracket | |
40fb9820 L |
9117 | || (!current_templates->start->opcode_modifier.jump |
9118 | && !current_templates->start->opcode_modifier.jumpdword | |
9119 | && !current_templates->start->opcode_modifier.jumpintersegment | |
9120 | && !current_templates->start->operand_types[0].bitfield.jumpabsolute)) | |
a724f0f4 JB |
9121 | return intel_match_token (T_NIL); |
9122 | /* Remember the start of the 2nd operand and terminate 1st | |
9123 | operand here. | |
9124 | XXX This isn't right, yet (when SSSS:OOOO is right operand of | |
9125 | another expression), but it gets at least the simplest case | |
9126 | (a plain number or symbol on the left side) right. */ | |
9127 | intel_parser.next_operand = intel_parser.op_string; | |
9128 | *--intel_parser.op_string = '\0'; | |
9129 | return intel_match_token (':'); | |
9130 | } | |
9306ca4a | 9131 | } |
64a0c779 | 9132 | |
a724f0f4 | 9133 | /* e09' Empty */ |
64a0c779 | 9134 | else |
a724f0f4 | 9135 | break; |
64a0c779 | 9136 | |
a724f0f4 JB |
9137 | intel_match_token (cur_token.code); |
9138 | ||
9139 | } | |
9140 | ||
9141 | if (in_offset) | |
9142 | { | |
9143 | --intel_parser.in_offset; | |
9144 | if (nregs < 0) | |
9145 | nregs = ~nregs; | |
9146 | if (NUM_ADDRESS_REGS > nregs) | |
9306ca4a | 9147 | { |
a724f0f4 | 9148 | as_bad (_("Invalid operand to `OFFSET'")); |
9306ca4a JB |
9149 | return 0; |
9150 | } | |
a724f0f4 JB |
9151 | intel_parser.op_modifier |= 1 << T_OFFSET; |
9152 | } | |
9306ca4a | 9153 | |
a724f0f4 JB |
9154 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
9155 | i.base_reg = i386_regtab + REGNAM_AL + 3; /* bl is invalid as base */ | |
9156 | return 1; | |
9157 | } | |
64a0c779 | 9158 | |
a724f0f4 | 9159 | static int |
e3bb37b5 | 9160 | intel_bracket_expr (void) |
a724f0f4 JB |
9161 | { |
9162 | int was_offset = intel_parser.op_modifier & (1 << T_OFFSET); | |
9163 | const char *start = intel_parser.op_string; | |
9164 | int len; | |
9165 | ||
9166 | if (i.op[this_operand].regs) | |
9167 | return intel_match_token (T_NIL); | |
9168 | ||
9169 | intel_match_token ('['); | |
9170 | ||
9171 | /* Mark as a memory operand only if it's not already known to be an | |
9172 | offset expression. If it's an offset expression, we need to keep | |
9173 | the brace in. */ | |
9174 | if (!intel_parser.in_offset) | |
9175 | { | |
9176 | ++intel_parser.in_bracket; | |
435acd52 JB |
9177 | |
9178 | /* Operands for jump/call inside brackets denote absolute addresses. */ | |
40fb9820 L |
9179 | if (current_templates->start->opcode_modifier.jump |
9180 | || current_templates->start->opcode_modifier.jumpdword) | |
9181 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 9182 | |
a724f0f4 JB |
9183 | /* Unfortunately gas always diverged from MASM in a respect that can't |
9184 | be easily fixed without risking to break code sequences likely to be | |
9185 | encountered (the testsuite even check for this): MASM doesn't consider | |
9186 | an expression inside brackets unconditionally as a memory reference. | |
9187 | When that is e.g. a constant, an offset expression, or the sum of the | |
9188 | two, this is still taken as a constant load. gas, however, always | |
9189 | treated these as memory references. As a compromise, we'll try to make | |
9190 | offset expressions inside brackets work the MASM way (since that's | |
9191 | less likely to be found in real world code), but make constants alone | |
9192 | continue to work the traditional gas way. In either case, issue a | |
9193 | warning. */ | |
9194 | intel_parser.op_modifier &= ~was_offset; | |
64a0c779 | 9195 | } |
a724f0f4 | 9196 | else |
64e74474 | 9197 | strcat (intel_parser.disp, "["); |
a724f0f4 JB |
9198 | |
9199 | /* Add a '+' to the displacement string if necessary. */ | |
9200 | if (*intel_parser.disp != '\0' | |
9201 | && *(intel_parser.disp + strlen (intel_parser.disp) - 1) != '+') | |
9202 | strcat (intel_parser.disp, "+"); | |
64a0c779 | 9203 | |
a724f0f4 JB |
9204 | if (intel_expr () |
9205 | && (len = intel_parser.op_string - start - 1, | |
9206 | intel_match_token (']'))) | |
64a0c779 | 9207 | { |
a724f0f4 JB |
9208 | /* Preserve brackets when the operand is an offset expression. */ |
9209 | if (intel_parser.in_offset) | |
9210 | strcat (intel_parser.disp, "]"); | |
9211 | else | |
9212 | { | |
9213 | --intel_parser.in_bracket; | |
9214 | if (i.base_reg || i.index_reg) | |
9215 | intel_parser.is_mem = 1; | |
9216 | if (!intel_parser.is_mem) | |
9217 | { | |
9218 | if (!(intel_parser.op_modifier & (1 << T_OFFSET))) | |
9219 | /* Defer the warning until all of the operand was parsed. */ | |
9220 | intel_parser.is_mem = -1; | |
9221 | else if (!quiet_warnings) | |
4eed87de AM |
9222 | as_warn (_("`[%.*s]' taken to mean just `%.*s'"), |
9223 | len, start, len, start); | |
a724f0f4 JB |
9224 | } |
9225 | } | |
9226 | intel_parser.op_modifier |= was_offset; | |
64a0c779 | 9227 | |
a724f0f4 | 9228 | return 1; |
64a0c779 | 9229 | } |
a724f0f4 | 9230 | return 0; |
64a0c779 DN |
9231 | } |
9232 | ||
9233 | /* e10 e11 e10' | |
9234 | ||
9235 | e10' [ expr ] e10' | |
b77a7acd | 9236 | | Empty */ |
64a0c779 | 9237 | static int |
e3bb37b5 | 9238 | intel_e10 (void) |
64a0c779 | 9239 | { |
a724f0f4 JB |
9240 | if (!intel_e11 ()) |
9241 | return 0; | |
64a0c779 | 9242 | |
a724f0f4 | 9243 | while (cur_token.code == '[') |
64a0c779 | 9244 | { |
a724f0f4 | 9245 | if (!intel_bracket_expr ()) |
21d6c4af | 9246 | return 0; |
64a0c779 DN |
9247 | } |
9248 | ||
a724f0f4 | 9249 | return 1; |
64a0c779 DN |
9250 | } |
9251 | ||
64a0c779 | 9252 | /* e11 ( expr ) |
b77a7acd | 9253 | | [ expr ] |
64a0c779 DN |
9254 | | BYTE |
9255 | | WORD | |
9256 | | DWORD | |
9306ca4a | 9257 | | FWORD |
64a0c779 | 9258 | | QWORD |
9306ca4a JB |
9259 | | TBYTE |
9260 | | OWORD | |
9261 | | XMMWORD | |
c0f3af97 | 9262 | | YMMWORD |
4a1805b1 | 9263 | | $ |
64a0c779 DN |
9264 | | . |
9265 | | register | |
9266 | | id | |
9267 | | constant */ | |
9268 | static int | |
e3bb37b5 | 9269 | intel_e11 (void) |
64a0c779 | 9270 | { |
a724f0f4 | 9271 | switch (cur_token.code) |
64a0c779 | 9272 | { |
a724f0f4 JB |
9273 | /* e11 ( expr ) */ |
9274 | case '(': | |
64a0c779 DN |
9275 | intel_match_token ('('); |
9276 | strcat (intel_parser.disp, "("); | |
9277 | ||
9278 | if (intel_expr () && intel_match_token (')')) | |
e5cb08ac KH |
9279 | { |
9280 | strcat (intel_parser.disp, ")"); | |
9281 | return 1; | |
9282 | } | |
a724f0f4 | 9283 | return 0; |
4a1805b1 | 9284 | |
a724f0f4 JB |
9285 | /* e11 [ expr ] */ |
9286 | case '[': | |
a724f0f4 | 9287 | return intel_bracket_expr (); |
64a0c779 | 9288 | |
a724f0f4 JB |
9289 | /* e11 $ |
9290 | | . */ | |
9291 | case '.': | |
64a0c779 DN |
9292 | strcat (intel_parser.disp, cur_token.str); |
9293 | intel_match_token (cur_token.code); | |
21d6c4af DN |
9294 | |
9295 | /* Mark as a memory operand only if it's not already known to be an | |
9296 | offset expression. */ | |
a724f0f4 | 9297 | if (!intel_parser.in_offset) |
21d6c4af | 9298 | intel_parser.is_mem = 1; |
64a0c779 DN |
9299 | |
9300 | return 1; | |
64a0c779 | 9301 | |
a724f0f4 JB |
9302 | /* e11 register */ |
9303 | case T_REG: | |
9304 | { | |
9305 | const reg_entry *reg = intel_parser.reg = cur_token.reg; | |
64a0c779 | 9306 | |
a724f0f4 | 9307 | intel_match_token (T_REG); |
64a0c779 | 9308 | |
a724f0f4 JB |
9309 | /* Check for segment change. */ |
9310 | if (cur_token.code == ':') | |
9311 | { | |
40fb9820 L |
9312 | if (!reg->reg_type.bitfield.sreg2 |
9313 | && !reg->reg_type.bitfield.sreg3) | |
a724f0f4 | 9314 | { |
4eed87de AM |
9315 | as_bad (_("`%s' is not a valid segment register"), |
9316 | reg->reg_name); | |
a724f0f4 JB |
9317 | return 0; |
9318 | } | |
b7240065 JB |
9319 | else if (i.mem_operands >= 2) |
9320 | as_warn (_("Segment override ignored")); | |
a724f0f4 JB |
9321 | else if (i.seg[i.mem_operands]) |
9322 | as_warn (_("Extra segment override ignored")); | |
9323 | else | |
9324 | { | |
9325 | if (!intel_parser.in_offset) | |
9326 | intel_parser.is_mem = 1; | |
9327 | switch (reg->reg_num) | |
9328 | { | |
9329 | case 0: | |
9330 | i.seg[i.mem_operands] = &es; | |
9331 | break; | |
9332 | case 1: | |
9333 | i.seg[i.mem_operands] = &cs; | |
9334 | break; | |
9335 | case 2: | |
9336 | i.seg[i.mem_operands] = &ss; | |
9337 | break; | |
9338 | case 3: | |
9339 | i.seg[i.mem_operands] = &ds; | |
9340 | break; | |
9341 | case 4: | |
9342 | i.seg[i.mem_operands] = &fs; | |
9343 | break; | |
9344 | case 5: | |
9345 | i.seg[i.mem_operands] = &gs; | |
9346 | break; | |
9347 | } | |
9348 | } | |
9349 | } | |
64a0c779 | 9350 | |
b7240065 JB |
9351 | else if (reg->reg_type.bitfield.sreg3 && reg->reg_num == RegFlat) |
9352 | { | |
9353 | as_bad (_("cannot use `FLAT' here")); | |
9354 | return 0; | |
9355 | } | |
9356 | ||
a724f0f4 JB |
9357 | /* Not a segment register. Check for register scaling. */ |
9358 | else if (cur_token.code == '*') | |
9359 | { | |
9360 | if (!intel_parser.in_bracket) | |
9361 | { | |
9362 | as_bad (_("Register scaling only allowed in memory operands")); | |
9363 | return 0; | |
9364 | } | |
64a0c779 | 9365 | |
40fb9820 | 9366 | if (reg->reg_type.bitfield.reg16) /* Disallow things like [si*1]. */ |
a724f0f4 JB |
9367 | reg = i386_regtab + REGNAM_AX + 4; /* sp is invalid as index */ |
9368 | else if (i.index_reg) | |
9369 | reg = i386_regtab + REGNAM_EAX + 4; /* esp is invalid as index */ | |
64a0c779 | 9370 | |
a724f0f4 JB |
9371 | /* What follows must be a valid scale. */ |
9372 | intel_match_token ('*'); | |
9373 | i.index_reg = reg; | |
40fb9820 | 9374 | i.types[this_operand].bitfield.baseindex = 1; |
64a0c779 | 9375 | |
a724f0f4 JB |
9376 | /* Set the scale after setting the register (otherwise, |
9377 | i386_scale will complain) */ | |
9378 | if (cur_token.code == '+' || cur_token.code == '-') | |
9379 | { | |
9380 | char *str, sign = cur_token.code; | |
9381 | intel_match_token (cur_token.code); | |
9382 | if (cur_token.code != T_CONST) | |
9383 | { | |
9384 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
9385 | cur_token.str); | |
9386 | return 0; | |
9387 | } | |
9388 | str = (char *) xmalloc (strlen (cur_token.str) + 2); | |
9389 | strcpy (str + 1, cur_token.str); | |
9390 | *str = sign; | |
9391 | if (!i386_scale (str)) | |
9392 | return 0; | |
9393 | free (str); | |
9394 | } | |
9395 | else if (!i386_scale (cur_token.str)) | |
64a0c779 | 9396 | return 0; |
a724f0f4 JB |
9397 | intel_match_token (cur_token.code); |
9398 | } | |
64a0c779 | 9399 | |
a724f0f4 JB |
9400 | /* No scaling. If this is a memory operand, the register is either a |
9401 | base register (first occurrence) or an index register (second | |
9402 | occurrence). */ | |
7b0441f6 | 9403 | else if (intel_parser.in_bracket) |
a724f0f4 | 9404 | { |
64a0c779 | 9405 | |
a724f0f4 JB |
9406 | if (!i.base_reg) |
9407 | i.base_reg = reg; | |
9408 | else if (!i.index_reg) | |
9409 | i.index_reg = reg; | |
9410 | else | |
9411 | { | |
9412 | as_bad (_("Too many register references in memory operand")); | |
9413 | return 0; | |
9414 | } | |
64a0c779 | 9415 | |
40fb9820 | 9416 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 | 9417 | } |
4a1805b1 | 9418 | |
4d1bb795 JB |
9419 | /* It's neither base nor index. */ |
9420 | else if (!intel_parser.in_offset && !intel_parser.is_mem) | |
a724f0f4 | 9421 | { |
40fb9820 L |
9422 | i386_operand_type temp = reg->reg_type; |
9423 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
9424 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
9425 | temp); | |
7d5e4556 | 9426 | i.types[this_operand].bitfield.unspecified = 0; |
a724f0f4 JB |
9427 | i.op[this_operand].regs = reg; |
9428 | i.reg_operands++; | |
9429 | } | |
9430 | else | |
9431 | { | |
9432 | as_bad (_("Invalid use of register")); | |
9433 | return 0; | |
9434 | } | |
64a0c779 | 9435 | |
a724f0f4 JB |
9436 | /* Since registers are not part of the displacement string (except |
9437 | when we're parsing offset operands), we may need to remove any | |
9438 | preceding '+' from the displacement string. */ | |
9439 | if (*intel_parser.disp != '\0' | |
9440 | && !intel_parser.in_offset) | |
9441 | { | |
9442 | char *s = intel_parser.disp; | |
9443 | s += strlen (s) - 1; | |
9444 | if (*s == '+') | |
9445 | *s = '\0'; | |
9446 | } | |
4a1805b1 | 9447 | |
a724f0f4 JB |
9448 | return 1; |
9449 | } | |
9450 | ||
9451 | /* e11 BYTE | |
9452 | | WORD | |
9453 | | DWORD | |
9454 | | FWORD | |
9455 | | QWORD | |
9456 | | TBYTE | |
9457 | | OWORD | |
c0f3af97 L |
9458 | | XMMWORD |
9459 | | YMMWORD */ | |
a724f0f4 JB |
9460 | case T_BYTE: |
9461 | case T_WORD: | |
9462 | case T_DWORD: | |
9463 | case T_FWORD: | |
9464 | case T_QWORD: | |
9465 | case T_TBYTE: | |
9466 | case T_XMMWORD: | |
c0f3af97 | 9467 | case T_YMMWORD: |
a724f0f4 | 9468 | intel_match_token (cur_token.code); |
64a0c779 | 9469 | |
a724f0f4 JB |
9470 | if (cur_token.code == T_PTR) |
9471 | return 1; | |
9472 | ||
9473 | /* It must have been an identifier. */ | |
9474 | intel_putback_token (); | |
9475 | cur_token.code = T_ID; | |
9476 | /* FALLTHRU */ | |
9477 | ||
9478 | /* e11 id | |
9479 | | constant */ | |
9480 | case T_ID: | |
9481 | if (!intel_parser.in_offset && intel_parser.is_mem <= 0) | |
9306ca4a JB |
9482 | { |
9483 | symbolS *symbolP; | |
9484 | ||
a724f0f4 JB |
9485 | /* The identifier represents a memory reference only if it's not |
9486 | preceded by an offset modifier and if it's not an equate. */ | |
9306ca4a JB |
9487 | symbolP = symbol_find(cur_token.str); |
9488 | if (!symbolP || S_GET_SEGMENT(symbolP) != absolute_section) | |
9489 | intel_parser.is_mem = 1; | |
9490 | } | |
a724f0f4 | 9491 | /* FALLTHRU */ |
64a0c779 | 9492 | |
a724f0f4 JB |
9493 | case T_CONST: |
9494 | case '-': | |
9495 | case '+': | |
9496 | { | |
9497 | char *save_str, sign = 0; | |
64a0c779 | 9498 | |
a724f0f4 JB |
9499 | /* Allow constants that start with `+' or `-'. */ |
9500 | if (cur_token.code == '-' || cur_token.code == '+') | |
9501 | { | |
9502 | sign = cur_token.code; | |
9503 | intel_match_token (cur_token.code); | |
9504 | if (cur_token.code != T_CONST) | |
9505 | { | |
9506 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
9507 | cur_token.str); | |
9508 | return 0; | |
9509 | } | |
9510 | } | |
64a0c779 | 9511 | |
a724f0f4 JB |
9512 | save_str = (char *) xmalloc (strlen (cur_token.str) + 2); |
9513 | strcpy (save_str + !!sign, cur_token.str); | |
9514 | if (sign) | |
9515 | *save_str = sign; | |
64a0c779 | 9516 | |
a724f0f4 JB |
9517 | /* Get the next token to check for register scaling. */ |
9518 | intel_match_token (cur_token.code); | |
64a0c779 | 9519 | |
4eed87de AM |
9520 | /* Check if this constant is a scaling factor for an |
9521 | index register. */ | |
a724f0f4 JB |
9522 | if (cur_token.code == '*') |
9523 | { | |
9524 | if (intel_match_token ('*') && cur_token.code == T_REG) | |
9525 | { | |
9526 | const reg_entry *reg = cur_token.reg; | |
9527 | ||
9528 | if (!intel_parser.in_bracket) | |
9529 | { | |
4eed87de AM |
9530 | as_bad (_("Register scaling only allowed " |
9531 | "in memory operands")); | |
a724f0f4 JB |
9532 | return 0; |
9533 | } | |
9534 | ||
4eed87de AM |
9535 | /* Disallow things like [1*si]. |
9536 | sp and esp are invalid as index. */ | |
40fb9820 | 9537 | if (reg->reg_type.bitfield.reg16) |
4eed87de | 9538 | reg = i386_regtab + REGNAM_AX + 4; |
a724f0f4 | 9539 | else if (i.index_reg) |
4eed87de | 9540 | reg = i386_regtab + REGNAM_EAX + 4; |
a724f0f4 JB |
9541 | |
9542 | /* The constant is followed by `* reg', so it must be | |
9543 | a valid scale. */ | |
9544 | i.index_reg = reg; | |
40fb9820 | 9545 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 JB |
9546 | |
9547 | /* Set the scale after setting the register (otherwise, | |
9548 | i386_scale will complain) */ | |
9549 | if (!i386_scale (save_str)) | |
64a0c779 | 9550 | return 0; |
a724f0f4 JB |
9551 | intel_match_token (T_REG); |
9552 | ||
9553 | /* Since registers are not part of the displacement | |
9554 | string, we may need to remove any preceding '+' from | |
9555 | the displacement string. */ | |
9556 | if (*intel_parser.disp != '\0') | |
9557 | { | |
9558 | char *s = intel_parser.disp; | |
9559 | s += strlen (s) - 1; | |
9560 | if (*s == '+') | |
9561 | *s = '\0'; | |
9562 | } | |
9563 | ||
9564 | free (save_str); | |
9565 | ||
9566 | return 1; | |
9567 | } | |
64a0c779 | 9568 | |
a724f0f4 JB |
9569 | /* The constant was not used for register scaling. Since we have |
9570 | already consumed the token following `*' we now need to put it | |
9571 | back in the stream. */ | |
64a0c779 | 9572 | intel_putback_token (); |
a724f0f4 | 9573 | } |
64a0c779 | 9574 | |
a724f0f4 JB |
9575 | /* Add the constant to the displacement string. */ |
9576 | strcat (intel_parser.disp, save_str); | |
9577 | free (save_str); | |
64a0c779 | 9578 | |
a724f0f4 JB |
9579 | return 1; |
9580 | } | |
64a0c779 DN |
9581 | } |
9582 | ||
64a0c779 DN |
9583 | as_bad (_("Unrecognized token '%s'"), cur_token.str); |
9584 | return 0; | |
9585 | } | |
9586 | ||
64a0c779 DN |
9587 | /* Match the given token against cur_token. If they match, read the next |
9588 | token from the operand string. */ | |
9589 | static int | |
e3bb37b5 | 9590 | intel_match_token (int code) |
64a0c779 DN |
9591 | { |
9592 | if (cur_token.code == code) | |
9593 | { | |
9594 | intel_get_token (); | |
9595 | return 1; | |
9596 | } | |
9597 | else | |
9598 | { | |
0477af35 | 9599 | as_bad (_("Unexpected token `%s'"), cur_token.str); |
64a0c779 DN |
9600 | return 0; |
9601 | } | |
9602 | } | |
9603 | ||
64a0c779 DN |
9604 | /* Read a new token from intel_parser.op_string and store it in cur_token. */ |
9605 | static void | |
e3bb37b5 | 9606 | intel_get_token (void) |
64a0c779 DN |
9607 | { |
9608 | char *end_op; | |
9609 | const reg_entry *reg; | |
9610 | struct intel_token new_token; | |
9611 | ||
9612 | new_token.code = T_NIL; | |
9613 | new_token.reg = NULL; | |
9614 | new_token.str = NULL; | |
9615 | ||
4a1805b1 | 9616 | /* Free the memory allocated to the previous token and move |
64a0c779 DN |
9617 | cur_token to prev_token. */ |
9618 | if (prev_token.str) | |
9619 | free (prev_token.str); | |
9620 | ||
9621 | prev_token = cur_token; | |
9622 | ||
9623 | /* Skip whitespace. */ | |
9624 | while (is_space_char (*intel_parser.op_string)) | |
9625 | intel_parser.op_string++; | |
9626 | ||
9627 | /* Return an empty token if we find nothing else on the line. */ | |
9628 | if (*intel_parser.op_string == '\0') | |
9629 | { | |
9630 | cur_token = new_token; | |
9631 | return; | |
9632 | } | |
9633 | ||
9634 | /* The new token cannot be larger than the remainder of the operand | |
9635 | string. */ | |
a724f0f4 | 9636 | new_token.str = (char *) xmalloc (strlen (intel_parser.op_string) + 1); |
64a0c779 DN |
9637 | new_token.str[0] = '\0'; |
9638 | ||
9639 | if (strchr ("0123456789", *intel_parser.op_string)) | |
9640 | { | |
9641 | char *p = new_token.str; | |
9642 | char *q = intel_parser.op_string; | |
9643 | new_token.code = T_CONST; | |
9644 | ||
9645 | /* Allow any kind of identifier char to encompass floating point and | |
9646 | hexadecimal numbers. */ | |
9647 | while (is_identifier_char (*q)) | |
9648 | *p++ = *q++; | |
9649 | *p = '\0'; | |
9650 | ||
9651 | /* Recognize special symbol names [0-9][bf]. */ | |
9652 | if (strlen (intel_parser.op_string) == 2 | |
4a1805b1 | 9653 | && (intel_parser.op_string[1] == 'b' |
64a0c779 DN |
9654 | || intel_parser.op_string[1] == 'f')) |
9655 | new_token.code = T_ID; | |
9656 | } | |
9657 | ||
4d1bb795 | 9658 | else if ((reg = parse_register (intel_parser.op_string, &end_op)) != NULL) |
64a0c779 | 9659 | { |
4d1bb795 JB |
9660 | size_t len = end_op - intel_parser.op_string; |
9661 | ||
64a0c779 DN |
9662 | new_token.code = T_REG; |
9663 | new_token.reg = reg; | |
9664 | ||
4d1bb795 JB |
9665 | memcpy (new_token.str, intel_parser.op_string, len); |
9666 | new_token.str[len] = '\0'; | |
64a0c779 DN |
9667 | } |
9668 | ||
9669 | else if (is_identifier_char (*intel_parser.op_string)) | |
9670 | { | |
9671 | char *p = new_token.str; | |
9672 | char *q = intel_parser.op_string; | |
9673 | ||
9674 | /* A '.' or '$' followed by an identifier char is an identifier. | |
9675 | Otherwise, it's operator '.' followed by an expression. */ | |
9676 | if ((*q == '.' || *q == '$') && !is_identifier_char (*(q + 1))) | |
9677 | { | |
9306ca4a JB |
9678 | new_token.code = '.'; |
9679 | new_token.str[0] = '.'; | |
64a0c779 DN |
9680 | new_token.str[1] = '\0'; |
9681 | } | |
9682 | else | |
9683 | { | |
9684 | while (is_identifier_char (*q) || *q == '@') | |
9685 | *p++ = *q++; | |
9686 | *p = '\0'; | |
9687 | ||
9306ca4a JB |
9688 | if (strcasecmp (new_token.str, "NOT") == 0) |
9689 | new_token.code = '~'; | |
9690 | ||
9691 | else if (strcasecmp (new_token.str, "MOD") == 0) | |
9692 | new_token.code = '%'; | |
9693 | ||
9694 | else if (strcasecmp (new_token.str, "AND") == 0) | |
9695 | new_token.code = '&'; | |
9696 | ||
9697 | else if (strcasecmp (new_token.str, "OR") == 0) | |
9698 | new_token.code = '|'; | |
9699 | ||
9700 | else if (strcasecmp (new_token.str, "XOR") == 0) | |
9701 | new_token.code = '^'; | |
9702 | ||
9703 | else if (strcasecmp (new_token.str, "SHL") == 0) | |
9704 | new_token.code = T_SHL; | |
9705 | ||
9706 | else if (strcasecmp (new_token.str, "SHR") == 0) | |
9707 | new_token.code = T_SHR; | |
9708 | ||
9709 | else if (strcasecmp (new_token.str, "BYTE") == 0) | |
64a0c779 DN |
9710 | new_token.code = T_BYTE; |
9711 | ||
9712 | else if (strcasecmp (new_token.str, "WORD") == 0) | |
9713 | new_token.code = T_WORD; | |
9714 | ||
9715 | else if (strcasecmp (new_token.str, "DWORD") == 0) | |
9716 | new_token.code = T_DWORD; | |
9717 | ||
9306ca4a JB |
9718 | else if (strcasecmp (new_token.str, "FWORD") == 0) |
9719 | new_token.code = T_FWORD; | |
9720 | ||
64a0c779 DN |
9721 | else if (strcasecmp (new_token.str, "QWORD") == 0) |
9722 | new_token.code = T_QWORD; | |
9723 | ||
9306ca4a JB |
9724 | else if (strcasecmp (new_token.str, "TBYTE") == 0 |
9725 | /* XXX remove (gcc still uses it) */ | |
9726 | || strcasecmp (new_token.str, "XWORD") == 0) | |
9727 | new_token.code = T_TBYTE; | |
9728 | ||
9729 | else if (strcasecmp (new_token.str, "XMMWORD") == 0 | |
9730 | || strcasecmp (new_token.str, "OWORD") == 0) | |
9731 | new_token.code = T_XMMWORD; | |
64a0c779 | 9732 | |
c0f3af97 L |
9733 | else if (strcasecmp (new_token.str, "YMMWORD") == 0) |
9734 | new_token.code = T_YMMWORD; | |
9735 | ||
64a0c779 DN |
9736 | else if (strcasecmp (new_token.str, "PTR") == 0) |
9737 | new_token.code = T_PTR; | |
9738 | ||
9739 | else if (strcasecmp (new_token.str, "SHORT") == 0) | |
9740 | new_token.code = T_SHORT; | |
9741 | ||
9742 | else if (strcasecmp (new_token.str, "OFFSET") == 0) | |
9743 | { | |
9744 | new_token.code = T_OFFSET; | |
9745 | ||
9746 | /* ??? This is not mentioned in the MASM grammar but gcc | |
9747 | makes use of it with -mintel-syntax. OFFSET may be | |
9748 | followed by FLAT: */ | |
9749 | if (strncasecmp (q, " FLAT:", 6) == 0) | |
9750 | strcat (new_token.str, " FLAT:"); | |
9751 | } | |
9752 | ||
64a0c779 DN |
9753 | else |
9754 | new_token.code = T_ID; | |
9755 | } | |
9756 | } | |
9757 | ||
9306ca4a JB |
9758 | else if (strchr ("+-/*%|&^:[]()~", *intel_parser.op_string)) |
9759 | { | |
9760 | new_token.code = *intel_parser.op_string; | |
9761 | new_token.str[0] = *intel_parser.op_string; | |
9762 | new_token.str[1] = '\0'; | |
9763 | } | |
9764 | ||
9765 | else if (strchr ("<>", *intel_parser.op_string) | |
9766 | && *intel_parser.op_string == *(intel_parser.op_string + 1)) | |
9767 | { | |
9768 | new_token.code = *intel_parser.op_string == '<' ? T_SHL : T_SHR; | |
9769 | new_token.str[0] = *intel_parser.op_string; | |
9770 | new_token.str[1] = *intel_parser.op_string; | |
9771 | new_token.str[2] = '\0'; | |
9772 | } | |
9773 | ||
64a0c779 | 9774 | else |
0477af35 | 9775 | as_bad (_("Unrecognized token `%s'"), intel_parser.op_string); |
64a0c779 DN |
9776 | |
9777 | intel_parser.op_string += strlen (new_token.str); | |
9778 | cur_token = new_token; | |
9779 | } | |
9780 | ||
64a0c779 DN |
9781 | /* Put cur_token back into the token stream and make cur_token point to |
9782 | prev_token. */ | |
9783 | static void | |
e3bb37b5 | 9784 | intel_putback_token (void) |
64a0c779 | 9785 | { |
a724f0f4 JB |
9786 | if (cur_token.code != T_NIL) |
9787 | { | |
9788 | intel_parser.op_string -= strlen (cur_token.str); | |
9789 | free (cur_token.str); | |
9790 | } | |
64a0c779 | 9791 | cur_token = prev_token; |
4a1805b1 | 9792 | |
64a0c779 DN |
9793 | /* Forget prev_token. */ |
9794 | prev_token.code = T_NIL; | |
9795 | prev_token.reg = NULL; | |
9796 | prev_token.str = NULL; | |
9797 | } | |
54cfded0 | 9798 | |
a60de03c JB |
9799 | void |
9800 | tc_x86_parse_to_dw2regnum (expressionS *exp) | |
54cfded0 | 9801 | { |
a60de03c JB |
9802 | int saved_naked_reg; |
9803 | char saved_register_dot; | |
54cfded0 | 9804 | |
a60de03c JB |
9805 | saved_naked_reg = allow_naked_reg; |
9806 | allow_naked_reg = 1; | |
9807 | saved_register_dot = register_chars['.']; | |
9808 | register_chars['.'] = '.'; | |
9809 | allow_pseudo_reg = 1; | |
9810 | expression_and_evaluate (exp); | |
9811 | allow_pseudo_reg = 0; | |
9812 | register_chars['.'] = saved_register_dot; | |
9813 | allow_naked_reg = saved_naked_reg; | |
9814 | ||
9815 | if (exp->X_op == O_register && exp->X_add_number >= 0) | |
54cfded0 | 9816 | { |
a60de03c JB |
9817 | if ((addressT) exp->X_add_number < i386_regtab_size) |
9818 | { | |
9819 | exp->X_op = O_constant; | |
9820 | exp->X_add_number = i386_regtab[exp->X_add_number] | |
9821 | .dw2_regnum[flag_code >> 1]; | |
9822 | } | |
9823 | else | |
9824 | exp->X_op = O_illegal; | |
54cfded0 | 9825 | } |
54cfded0 AM |
9826 | } |
9827 | ||
9828 | void | |
9829 | tc_x86_frame_initial_instructions (void) | |
9830 | { | |
a60de03c JB |
9831 | static unsigned int sp_regno[2]; |
9832 | ||
9833 | if (!sp_regno[flag_code >> 1]) | |
9834 | { | |
9835 | char *saved_input = input_line_pointer; | |
9836 | char sp[][4] = {"esp", "rsp"}; | |
9837 | expressionS exp; | |
a4447b93 | 9838 | |
a60de03c JB |
9839 | input_line_pointer = sp[flag_code >> 1]; |
9840 | tc_x86_parse_to_dw2regnum (&exp); | |
9841 | assert (exp.X_op == O_constant); | |
9842 | sp_regno[flag_code >> 1] = exp.X_add_number; | |
9843 | input_line_pointer = saved_input; | |
9844 | } | |
a4447b93 | 9845 | |
a60de03c | 9846 | cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment); |
a4447b93 | 9847 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); |
54cfded0 | 9848 | } |
d2b2c203 DJ |
9849 | |
9850 | int | |
9851 | i386_elf_section_type (const char *str, size_t len) | |
9852 | { | |
9853 | if (flag_code == CODE_64BIT | |
9854 | && len == sizeof ("unwind") - 1 | |
9855 | && strncmp (str, "unwind", 6) == 0) | |
9856 | return SHT_X86_64_UNWIND; | |
9857 | ||
9858 | return -1; | |
9859 | } | |
bb41ade5 AM |
9860 | |
9861 | #ifdef TE_PE | |
9862 | void | |
9863 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
9864 | { | |
9865 | expressionS expr; | |
9866 | ||
9867 | expr.X_op = O_secrel; | |
9868 | expr.X_add_symbol = symbol; | |
9869 | expr.X_add_number = 0; | |
9870 | emit_expr (&expr, size); | |
9871 | } | |
9872 | #endif | |
3b22753a L |
9873 | |
9874 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
9875 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
9876 | ||
9877 | int | |
9878 | x86_64_section_letter (int letter, char **ptr_msg) | |
9879 | { | |
9880 | if (flag_code == CODE_64BIT) | |
9881 | { | |
9882 | if (letter == 'l') | |
9883 | return SHF_X86_64_LARGE; | |
9884 | ||
9885 | *ptr_msg = _("Bad .section directive: want a,l,w,x,M,S,G,T in string"); | |
64e74474 | 9886 | } |
3b22753a | 9887 | else |
64e74474 | 9888 | *ptr_msg = _("Bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
9889 | return -1; |
9890 | } | |
9891 | ||
9892 | int | |
9893 | x86_64_section_word (char *str, size_t len) | |
9894 | { | |
8620418b | 9895 | if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large")) |
3b22753a L |
9896 | return SHF_X86_64_LARGE; |
9897 | ||
9898 | return -1; | |
9899 | } | |
9900 | ||
9901 | static void | |
9902 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
9903 | { | |
9904 | if (flag_code != CODE_64BIT) | |
9905 | { | |
9906 | s_comm_internal (0, elf_common_parse); | |
9907 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
9908 | } | |
9909 | else | |
9910 | { | |
9911 | static segT lbss_section; | |
9912 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
9913 | asection *saved_bss_section = bss_section; | |
9914 | ||
9915 | if (lbss_section == NULL) | |
9916 | { | |
9917 | flagword applicable; | |
9918 | segT seg = now_seg; | |
9919 | subsegT subseg = now_subseg; | |
9920 | ||
9921 | /* The .lbss section is for local .largecomm symbols. */ | |
9922 | lbss_section = subseg_new (".lbss", 0); | |
9923 | applicable = bfd_applicable_section_flags (stdoutput); | |
9924 | bfd_set_section_flags (stdoutput, lbss_section, | |
9925 | applicable & SEC_ALLOC); | |
9926 | seg_info (lbss_section)->bss = 1; | |
9927 | ||
9928 | subseg_set (seg, subseg); | |
9929 | } | |
9930 | ||
9931 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
9932 | bss_section = lbss_section; | |
9933 | ||
9934 | s_comm_internal (0, elf_common_parse); | |
9935 | ||
9936 | elf_com_section_ptr = saved_com_section_ptr; | |
9937 | bss_section = saved_bss_section; | |
9938 | } | |
9939 | } | |
9940 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |