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, |
4dc85607 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
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 | ||
e3bb37b5 L |
58 | static void set_code_flag (int); |
59 | static void set_16bit_gcc_code_flag (int); | |
60 | static void set_intel_syntax (int); | |
db51cc60 | 61 | static void set_allow_index_reg (int); |
e3bb37b5 | 62 | static void set_cpu_arch (int); |
6482c264 | 63 | #ifdef TE_PE |
e3bb37b5 | 64 | static void pe_directive_secrel (int); |
6482c264 | 65 | #endif |
e3bb37b5 L |
66 | static void signed_cons (int); |
67 | static char *output_invalid (int c); | |
68 | static int i386_operand (char *); | |
69 | static int i386_intel_operand (char *, int); | |
70 | static const reg_entry *parse_register (char *, char **); | |
71 | static char *parse_insn (char *, char *); | |
72 | static char *parse_operands (char *, const char *); | |
73 | static void swap_operands (void); | |
4d456e3d | 74 | static void swap_2_operands (int, int); |
e3bb37b5 L |
75 | static void optimize_imm (void); |
76 | static void optimize_disp (void); | |
77 | static int match_template (void); | |
78 | static int check_string (void); | |
79 | static int process_suffix (void); | |
80 | static int check_byte_reg (void); | |
81 | static int check_long_reg (void); | |
82 | static int check_qword_reg (void); | |
83 | static int check_word_reg (void); | |
84 | static int finalize_imm (void); | |
85f10a01 | 85 | static void process_drex (void); |
e3bb37b5 L |
86 | static int process_operands (void); |
87 | static const seg_entry *build_modrm_byte (void); | |
88 | static void output_insn (void); | |
89 | static void output_imm (fragS *, offsetT); | |
90 | static void output_disp (fragS *, offsetT); | |
29b0f896 | 91 | #ifndef I386COFF |
e3bb37b5 | 92 | static void s_bss (int); |
252b5132 | 93 | #endif |
17d4e2a2 L |
94 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
95 | static void handle_large_common (int small ATTRIBUTE_UNUSED); | |
96 | #endif | |
252b5132 | 97 | |
a847613f | 98 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 99 | |
252b5132 | 100 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 101 | i386_insn. */ |
252b5132 | 102 | |
520dc8e8 AM |
103 | union i386_op |
104 | { | |
105 | expressionS *disps; | |
106 | expressionS *imms; | |
107 | const reg_entry *regs; | |
108 | }; | |
109 | ||
252b5132 RH |
110 | struct _i386_insn |
111 | { | |
47926f60 | 112 | /* TM holds the template for the insn were currently assembling. */ |
252b5132 RH |
113 | template tm; |
114 | ||
115 | /* SUFFIX holds the instruction mnemonic suffix if given. | |
116 | (e.g. 'l' for 'movl') */ | |
117 | char suffix; | |
118 | ||
47926f60 | 119 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
120 | unsigned int operands; |
121 | ||
122 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
123 | of given register, displacement, memory operands and immediate | |
47926f60 | 124 | operands. */ |
252b5132 RH |
125 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
126 | ||
127 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 128 | use OP[i] for the corresponding operand. */ |
40fb9820 | 129 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 130 | |
520dc8e8 AM |
131 | /* Displacement expression, immediate expression, or register for each |
132 | operand. */ | |
133 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 134 | |
3e73aa7c JH |
135 | /* Flags for operands. */ |
136 | unsigned int flags[MAX_OPERANDS]; | |
137 | #define Operand_PCrel 1 | |
138 | ||
252b5132 | 139 | /* Relocation type for operand */ |
f86103b7 | 140 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 141 | |
252b5132 RH |
142 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
143 | the base index byte below. */ | |
144 | const reg_entry *base_reg; | |
145 | const reg_entry *index_reg; | |
146 | unsigned int log2_scale_factor; | |
147 | ||
148 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 149 | explicit segment overrides are given. */ |
ce8a8b2f | 150 | const seg_entry *seg[2]; |
252b5132 RH |
151 | |
152 | /* PREFIX holds all the given prefix opcodes (usually null). | |
153 | PREFIXES is the number of prefix opcodes. */ | |
154 | unsigned int prefixes; | |
155 | unsigned char prefix[MAX_PREFIXES]; | |
156 | ||
157 | /* RM and SIB are the modrm byte and the sib byte where the | |
85f10a01 MM |
158 | addressing modes of this insn are encoded. DREX is the byte |
159 | added by the SSE5 instructions. */ | |
252b5132 RH |
160 | |
161 | modrm_byte rm; | |
3e73aa7c | 162 | rex_byte rex; |
252b5132 | 163 | sib_byte sib; |
85f10a01 | 164 | drex_byte drex; |
252b5132 RH |
165 | }; |
166 | ||
167 | typedef struct _i386_insn i386_insn; | |
168 | ||
169 | /* List of chars besides those in app.c:symbol_chars that can start an | |
170 | operand. Used to prevent the scrubber eating vital white-space. */ | |
32137342 | 171 | const char extra_symbol_chars[] = "*%-([" |
252b5132 | 172 | #ifdef LEX_AT |
32137342 NC |
173 | "@" |
174 | #endif | |
175 | #ifdef LEX_QM | |
176 | "?" | |
252b5132 | 177 | #endif |
32137342 | 178 | ; |
252b5132 | 179 | |
29b0f896 AM |
180 | #if (defined (TE_I386AIX) \ |
181 | || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ | |
3896cfd5 | 182 | && !defined (TE_GNU) \ |
29b0f896 | 183 | && !defined (TE_LINUX) \ |
32137342 | 184 | && !defined (TE_NETWARE) \ |
29b0f896 AM |
185 | && !defined (TE_FreeBSD) \ |
186 | && !defined (TE_NetBSD))) | |
252b5132 | 187 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
188 | pre-processor is disabled, these aren't very useful. The option |
189 | --divide will remove '/' from this list. */ | |
190 | const char *i386_comment_chars = "#/"; | |
191 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 192 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 193 | |
b3b91714 AM |
194 | #else |
195 | const char *i386_comment_chars = "#"; | |
196 | #define PREFIX_SEPARATOR '/' | |
197 | #endif | |
198 | ||
252b5132 RH |
199 | /* This array holds the chars that only start a comment at the beginning of |
200 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
201 | .line and .file directives will appear in the pre-processed output. |
202 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 203 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
204 | #NO_APP at the beginning of its output. |
205 | Also note that comments started like this one will always work if | |
252b5132 | 206 | '/' isn't otherwise defined. */ |
b3b91714 | 207 | const char line_comment_chars[] = "#/"; |
252b5132 | 208 | |
63a0b638 | 209 | const char line_separator_chars[] = ";"; |
252b5132 | 210 | |
ce8a8b2f AM |
211 | /* Chars that can be used to separate mant from exp in floating point |
212 | nums. */ | |
252b5132 RH |
213 | const char EXP_CHARS[] = "eE"; |
214 | ||
ce8a8b2f AM |
215 | /* Chars that mean this number is a floating point constant |
216 | As in 0f12.456 | |
217 | or 0d1.2345e12. */ | |
252b5132 RH |
218 | const char FLT_CHARS[] = "fFdDxX"; |
219 | ||
ce8a8b2f | 220 | /* Tables for lexical analysis. */ |
252b5132 RH |
221 | static char mnemonic_chars[256]; |
222 | static char register_chars[256]; | |
223 | static char operand_chars[256]; | |
224 | static char identifier_chars[256]; | |
225 | static char digit_chars[256]; | |
226 | ||
ce8a8b2f | 227 | /* Lexical macros. */ |
252b5132 RH |
228 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
229 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
230 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
231 | #define is_space_char(x) ((x) == ' ') | |
232 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
233 | #define is_digit_char(x) (digit_chars[(unsigned char) x]) | |
234 | ||
0234cb7c | 235 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
236 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
237 | ||
238 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
239 | effect this we maintain a stack of saved characters that we've smashed | |
240 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 241 | assembler instruction). */ |
252b5132 | 242 | static char save_stack[32]; |
ce8a8b2f | 243 | static char *save_stack_p; |
252b5132 RH |
244 | #define END_STRING_AND_SAVE(s) \ |
245 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
246 | #define RESTORE_END_STRING(s) \ | |
247 | do { *(s) = *--save_stack_p; } while (0) | |
248 | ||
47926f60 | 249 | /* The instruction we're assembling. */ |
252b5132 RH |
250 | static i386_insn i; |
251 | ||
252 | /* Possible templates for current insn. */ | |
253 | static const templates *current_templates; | |
254 | ||
31b2323c L |
255 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
256 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
257 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 258 | |
47926f60 KH |
259 | /* Current operand we are working on. */ |
260 | static int this_operand; | |
252b5132 | 261 | |
3e73aa7c JH |
262 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
263 | these. */ | |
264 | ||
265 | enum flag_code { | |
266 | CODE_32BIT, | |
267 | CODE_16BIT, | |
268 | CODE_64BIT }; | |
269 | ||
270 | static enum flag_code flag_code; | |
4fa24527 | 271 | static unsigned int object_64bit; |
3e73aa7c JH |
272 | static int use_rela_relocations = 0; |
273 | ||
274 | /* The names used to print error messages. */ | |
b77a7acd | 275 | static const char *flag_code_names[] = |
3e73aa7c JH |
276 | { |
277 | "32", | |
278 | "16", | |
279 | "64" | |
280 | }; | |
252b5132 | 281 | |
47926f60 KH |
282 | /* 1 for intel syntax, |
283 | 0 if att syntax. */ | |
284 | static int intel_syntax = 0; | |
252b5132 | 285 | |
47926f60 KH |
286 | /* 1 if register prefix % not required. */ |
287 | static int allow_naked_reg = 0; | |
252b5132 | 288 | |
db51cc60 L |
289 | /* 1 if fake index register, eiz/riz, is allowed . */ |
290 | static int allow_index_reg = 0; | |
291 | ||
2ca3ace5 L |
292 | /* Register prefix used for error message. */ |
293 | static const char *register_prefix = "%"; | |
294 | ||
47926f60 KH |
295 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
296 | leave, push, and pop instructions so that gcc has the same stack | |
297 | frame as in 32 bit mode. */ | |
298 | static char stackop_size = '\0'; | |
eecb386c | 299 | |
12b55ccc L |
300 | /* Non-zero to optimize code alignment. */ |
301 | int optimize_align_code = 1; | |
302 | ||
47926f60 KH |
303 | /* Non-zero to quieten some warnings. */ |
304 | static int quiet_warnings = 0; | |
a38cf1db | 305 | |
47926f60 KH |
306 | /* CPU name. */ |
307 | static const char *cpu_arch_name = NULL; | |
5c6af06e | 308 | static const char *cpu_sub_arch_name = NULL; |
a38cf1db | 309 | |
47926f60 | 310 | /* CPU feature flags. */ |
40fb9820 L |
311 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
312 | ||
313 | /* Bitwise NOT of cpu_arch_flags. */ | |
314 | static i386_cpu_flags cpu_arch_flags_not; | |
a38cf1db | 315 | |
ccc9c027 L |
316 | /* If we have selected a cpu we are generating instructions for. */ |
317 | static int cpu_arch_tune_set = 0; | |
318 | ||
9103f4f4 L |
319 | /* Cpu we are generating instructions for. */ |
320 | static enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; | |
321 | ||
322 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 323 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 324 | |
ccc9c027 L |
325 | /* CPU instruction set architecture used. */ |
326 | static enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; | |
327 | ||
9103f4f4 | 328 | /* CPU feature flags of instruction set architecture used. */ |
40fb9820 | 329 | static i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 330 | |
fddf5b5b AM |
331 | /* If set, conditional jumps are not automatically promoted to handle |
332 | larger than a byte offset. */ | |
333 | static unsigned int no_cond_jump_promotion = 0; | |
334 | ||
29b0f896 | 335 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 336 | static symbolS *GOT_symbol; |
29b0f896 | 337 | |
a4447b93 RH |
338 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
339 | unsigned int x86_dwarf2_return_column; | |
340 | ||
341 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
342 | int x86_cie_data_alignment; | |
343 | ||
252b5132 | 344 | /* Interface to relax_segment. |
fddf5b5b AM |
345 | There are 3 major relax states for 386 jump insns because the |
346 | different types of jumps add different sizes to frags when we're | |
347 | figuring out what sort of jump to choose to reach a given label. */ | |
252b5132 | 348 | |
47926f60 | 349 | /* Types. */ |
93c2a809 AM |
350 | #define UNCOND_JUMP 0 |
351 | #define COND_JUMP 1 | |
352 | #define COND_JUMP86 2 | |
fddf5b5b | 353 | |
47926f60 | 354 | /* Sizes. */ |
252b5132 RH |
355 | #define CODE16 1 |
356 | #define SMALL 0 | |
29b0f896 | 357 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 358 | #define BIG 2 |
29b0f896 | 359 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
360 | |
361 | #ifndef INLINE | |
362 | #ifdef __GNUC__ | |
363 | #define INLINE __inline__ | |
364 | #else | |
365 | #define INLINE | |
366 | #endif | |
367 | #endif | |
368 | ||
fddf5b5b AM |
369 | #define ENCODE_RELAX_STATE(type, size) \ |
370 | ((relax_substateT) (((type) << 2) | (size))) | |
371 | #define TYPE_FROM_RELAX_STATE(s) \ | |
372 | ((s) >> 2) | |
373 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
374 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
375 | |
376 | /* This table is used by relax_frag to promote short jumps to long | |
377 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
378 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
379 | don't allow a short jump in a 32 bit code segment to be promoted to | |
380 | a 16 bit offset jump because it's slower (requires data size | |
381 | prefix), and doesn't work, unless the destination is in the bottom | |
382 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
383 | ||
384 | const relax_typeS md_relax_table[] = | |
385 | { | |
24eab124 AM |
386 | /* The fields are: |
387 | 1) most positive reach of this state, | |
388 | 2) most negative reach of this state, | |
93c2a809 | 389 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 390 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 391 | |
fddf5b5b | 392 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
393 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
394 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
395 | /* dword jmp adds 4 bytes to frag: | |
396 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 397 | {0, 0, 4, 0}, |
93c2a809 AM |
398 | /* word jmp adds 2 byte2 to frag: |
399 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
400 | {0, 0, 2, 0}, |
401 | ||
93c2a809 AM |
402 | /* COND_JUMP states. */ |
403 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
404 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
405 | /* dword conditionals adds 5 bytes to frag: | |
406 | 1 extra opcode byte, 4 displacement bytes. */ | |
407 | {0, 0, 5, 0}, | |
fddf5b5b | 408 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
409 | 1 extra opcode byte, 2 displacement bytes. */ |
410 | {0, 0, 3, 0}, | |
411 | ||
412 | /* COND_JUMP86 states. */ | |
413 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
414 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
415 | /* dword conditionals adds 5 bytes to frag: | |
416 | 1 extra opcode byte, 4 displacement bytes. */ | |
417 | {0, 0, 5, 0}, | |
418 | /* word conditionals add 4 bytes to frag: | |
419 | 1 displacement byte and a 3 byte long branch insn. */ | |
420 | {0, 0, 4, 0} | |
252b5132 RH |
421 | }; |
422 | ||
9103f4f4 L |
423 | static const arch_entry cpu_arch[] = |
424 | { | |
425 | {"generic32", PROCESSOR_GENERIC32, | |
40fb9820 | 426 | CPU_GENERIC32_FLAGS }, |
9103f4f4 | 427 | {"generic64", PROCESSOR_GENERIC64, |
40fb9820 | 428 | CPU_GENERIC64_FLAGS }, |
9103f4f4 | 429 | {"i8086", PROCESSOR_UNKNOWN, |
40fb9820 | 430 | CPU_NONE_FLAGS }, |
9103f4f4 | 431 | {"i186", PROCESSOR_UNKNOWN, |
40fb9820 | 432 | CPU_I186_FLAGS }, |
9103f4f4 | 433 | {"i286", PROCESSOR_UNKNOWN, |
40fb9820 | 434 | CPU_I286_FLAGS }, |
76bc74dc | 435 | {"i386", PROCESSOR_I386, |
40fb9820 | 436 | CPU_I386_FLAGS }, |
9103f4f4 | 437 | {"i486", PROCESSOR_I486, |
40fb9820 | 438 | CPU_I486_FLAGS }, |
9103f4f4 | 439 | {"i586", PROCESSOR_PENTIUM, |
40fb9820 | 440 | CPU_I586_FLAGS }, |
9103f4f4 | 441 | {"i686", PROCESSOR_PENTIUMPRO, |
40fb9820 | 442 | CPU_I686_FLAGS }, |
9103f4f4 | 443 | {"pentium", PROCESSOR_PENTIUM, |
40fb9820 | 444 | CPU_I586_FLAGS }, |
9103f4f4 | 445 | {"pentiumpro",PROCESSOR_PENTIUMPRO, |
40fb9820 | 446 | CPU_I686_FLAGS }, |
9103f4f4 | 447 | {"pentiumii", PROCESSOR_PENTIUMPRO, |
40fb9820 | 448 | CPU_P2_FLAGS }, |
9103f4f4 | 449 | {"pentiumiii",PROCESSOR_PENTIUMPRO, |
40fb9820 | 450 | CPU_P3_FLAGS }, |
9103f4f4 | 451 | {"pentium4", PROCESSOR_PENTIUM4, |
40fb9820 | 452 | CPU_P4_FLAGS }, |
9103f4f4 | 453 | {"prescott", PROCESSOR_NOCONA, |
40fb9820 | 454 | CPU_CORE_FLAGS }, |
9103f4f4 | 455 | {"nocona", PROCESSOR_NOCONA, |
40fb9820 | 456 | CPU_NOCONA_FLAGS }, |
ef05d495 | 457 | {"yonah", PROCESSOR_CORE, |
40fb9820 | 458 | CPU_CORE_FLAGS }, |
ef05d495 | 459 | {"core", PROCESSOR_CORE, |
40fb9820 | 460 | CPU_CORE_FLAGS }, |
ef05d495 | 461 | {"merom", PROCESSOR_CORE2, |
40fb9820 | 462 | CPU_CORE2_FLAGS }, |
ef05d495 | 463 | {"core2", PROCESSOR_CORE2, |
40fb9820 | 464 | CPU_CORE2_FLAGS }, |
9103f4f4 | 465 | {"k6", PROCESSOR_K6, |
40fb9820 | 466 | CPU_K6_FLAGS }, |
9103f4f4 | 467 | {"k6_2", PROCESSOR_K6, |
40fb9820 | 468 | CPU_K6_2_FLAGS }, |
9103f4f4 | 469 | {"athlon", PROCESSOR_ATHLON, |
40fb9820 | 470 | CPU_ATHLON_FLAGS }, |
9103f4f4 | 471 | {"sledgehammer", PROCESSOR_K8, |
40fb9820 | 472 | CPU_K8_FLAGS }, |
9103f4f4 | 473 | {"opteron", PROCESSOR_K8, |
40fb9820 | 474 | CPU_K8_FLAGS }, |
9103f4f4 | 475 | {"k8", PROCESSOR_K8, |
40fb9820 | 476 | CPU_K8_FLAGS }, |
050dfa73 | 477 | {"amdfam10", PROCESSOR_AMDFAM10, |
40fb9820 | 478 | CPU_AMDFAM10_FLAGS }, |
9103f4f4 | 479 | {".mmx", PROCESSOR_UNKNOWN, |
40fb9820 | 480 | CPU_MMX_FLAGS }, |
9103f4f4 | 481 | {".sse", PROCESSOR_UNKNOWN, |
40fb9820 | 482 | CPU_SSE_FLAGS }, |
9103f4f4 | 483 | {".sse2", PROCESSOR_UNKNOWN, |
40fb9820 | 484 | CPU_SSE2_FLAGS }, |
9103f4f4 | 485 | {".sse3", PROCESSOR_UNKNOWN, |
40fb9820 | 486 | CPU_SSE3_FLAGS }, |
ef05d495 | 487 | {".ssse3", PROCESSOR_UNKNOWN, |
40fb9820 | 488 | CPU_SSSE3_FLAGS }, |
42903f7f | 489 | {".sse4.1", PROCESSOR_UNKNOWN, |
40fb9820 | 490 | CPU_SSE4_1_FLAGS }, |
381d071f | 491 | {".sse4.2", PROCESSOR_UNKNOWN, |
40fb9820 | 492 | CPU_SSE4_2_FLAGS }, |
381d071f | 493 | {".sse4", PROCESSOR_UNKNOWN, |
40fb9820 | 494 | CPU_SSE4_2_FLAGS }, |
9103f4f4 | 495 | {".3dnow", PROCESSOR_UNKNOWN, |
40fb9820 | 496 | CPU_3DNOW_FLAGS }, |
9103f4f4 | 497 | {".3dnowa", PROCESSOR_UNKNOWN, |
40fb9820 | 498 | CPU_3DNOWA_FLAGS }, |
9103f4f4 | 499 | {".padlock", PROCESSOR_UNKNOWN, |
40fb9820 | 500 | CPU_PADLOCK_FLAGS }, |
9103f4f4 | 501 | {".pacifica", PROCESSOR_UNKNOWN, |
40fb9820 | 502 | CPU_SVME_FLAGS }, |
9103f4f4 | 503 | {".svme", PROCESSOR_UNKNOWN, |
40fb9820 | 504 | CPU_SVME_FLAGS }, |
050dfa73 | 505 | {".sse4a", PROCESSOR_UNKNOWN, |
40fb9820 | 506 | CPU_SSE4A_FLAGS }, |
050dfa73 | 507 | {".abm", PROCESSOR_UNKNOWN, |
40fb9820 | 508 | CPU_ABM_FLAGS }, |
85f10a01 MM |
509 | {".sse5", PROCESSOR_UNKNOWN, |
510 | CPU_SSE5_FLAGS }, | |
e413e4e9 AM |
511 | }; |
512 | ||
29b0f896 AM |
513 | const pseudo_typeS md_pseudo_table[] = |
514 | { | |
515 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
516 | {"align", s_align_bytes, 0}, | |
517 | #else | |
518 | {"align", s_align_ptwo, 0}, | |
519 | #endif | |
520 | {"arch", set_cpu_arch, 0}, | |
521 | #ifndef I386COFF | |
522 | {"bss", s_bss, 0}, | |
523 | #endif | |
524 | {"ffloat", float_cons, 'f'}, | |
525 | {"dfloat", float_cons, 'd'}, | |
526 | {"tfloat", float_cons, 'x'}, | |
527 | {"value", cons, 2}, | |
d182319b | 528 | {"slong", signed_cons, 4}, |
29b0f896 AM |
529 | {"noopt", s_ignore, 0}, |
530 | {"optim", s_ignore, 0}, | |
531 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
532 | {"code16", set_code_flag, CODE_16BIT}, | |
533 | {"code32", set_code_flag, CODE_32BIT}, | |
534 | {"code64", set_code_flag, CODE_64BIT}, | |
535 | {"intel_syntax", set_intel_syntax, 1}, | |
536 | {"att_syntax", set_intel_syntax, 0}, | |
db51cc60 L |
537 | {"allow_index_reg", set_allow_index_reg, 1}, |
538 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
3b22753a L |
539 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
540 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 541 | #else |
e3bb37b5 | 542 | {"file", (void (*) (int)) dwarf2_directive_file, 0}, |
07a53e5c RH |
543 | {"loc", dwarf2_directive_loc, 0}, |
544 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 545 | #endif |
6482c264 NC |
546 | #ifdef TE_PE |
547 | {"secrel32", pe_directive_secrel, 0}, | |
548 | #endif | |
29b0f896 AM |
549 | {0, 0, 0} |
550 | }; | |
551 | ||
552 | /* For interface with expression (). */ | |
553 | extern char *input_line_pointer; | |
554 | ||
555 | /* Hash table for instruction mnemonic lookup. */ | |
556 | static struct hash_control *op_hash; | |
557 | ||
558 | /* Hash table for register lookup. */ | |
559 | static struct hash_control *reg_hash; | |
560 | \f | |
252b5132 | 561 | void |
e3bb37b5 | 562 | i386_align_code (fragS *fragP, int count) |
252b5132 | 563 | { |
ce8a8b2f AM |
564 | /* Various efficient no-op patterns for aligning code labels. |
565 | Note: Don't try to assemble the instructions in the comments. | |
566 | 0L and 0w are not legal. */ | |
252b5132 RH |
567 | static const char f32_1[] = |
568 | {0x90}; /* nop */ | |
569 | static const char f32_2[] = | |
ccc9c027 | 570 | {0x66,0x90}; /* xchg %ax,%ax */ |
252b5132 RH |
571 | static const char f32_3[] = |
572 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
573 | static const char f32_4[] = | |
574 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
575 | static const char f32_5[] = | |
576 | {0x90, /* nop */ | |
577 | 0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
578 | static const char f32_6[] = | |
579 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
580 | static const char f32_7[] = | |
581 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
582 | static const char f32_8[] = | |
583 | {0x90, /* nop */ | |
584 | 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
585 | static const char f32_9[] = | |
586 | {0x89,0xf6, /* movl %esi,%esi */ | |
587 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
588 | static const char f32_10[] = | |
589 | {0x8d,0x76,0x00, /* leal 0(%esi),%esi */ | |
590 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
591 | static const char f32_11[] = | |
592 | {0x8d,0x74,0x26,0x00, /* leal 0(%esi,1),%esi */ | |
593 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
594 | static const char f32_12[] = | |
595 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
596 | 0x8d,0xbf,0x00,0x00,0x00,0x00}; /* leal 0L(%edi),%edi */ | |
597 | static const char f32_13[] = | |
598 | {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */ | |
599 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
600 | static const char f32_14[] = | |
601 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00, /* leal 0L(%esi,1),%esi */ | |
602 | 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */ | |
c3332e24 AM |
603 | static const char f16_3[] = |
604 | {0x8d,0x74,0x00}; /* lea 0(%esi),%esi */ | |
252b5132 RH |
605 | static const char f16_4[] = |
606 | {0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
607 | static const char f16_5[] = | |
608 | {0x90, /* nop */ | |
609 | 0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */ | |
610 | static const char f16_6[] = | |
611 | {0x89,0xf6, /* mov %si,%si */ | |
612 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
613 | static const char f16_7[] = | |
614 | {0x8d,0x74,0x00, /* lea 0(%si),%si */ | |
615 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
616 | static const char f16_8[] = | |
617 | {0x8d,0xb4,0x00,0x00, /* lea 0w(%si),%si */ | |
618 | 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */ | |
76bc74dc L |
619 | static const char jump_31[] = |
620 | {0xeb,0x1d,0x90,0x90,0x90,0x90,0x90, /* jmp .+31; lotsa nops */ | |
621 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
622 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90, | |
623 | 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90}; | |
252b5132 RH |
624 | static const char *const f32_patt[] = { |
625 | f32_1, f32_2, f32_3, f32_4, f32_5, f32_6, f32_7, f32_8, | |
76bc74dc | 626 | f32_9, f32_10, f32_11, f32_12, f32_13, f32_14 |
252b5132 RH |
627 | }; |
628 | static const char *const f16_patt[] = { | |
76bc74dc | 629 | f32_1, f32_2, f16_3, f16_4, f16_5, f16_6, f16_7, f16_8 |
252b5132 | 630 | }; |
ccc9c027 L |
631 | /* nopl (%[re]ax) */ |
632 | static const char alt_3[] = | |
633 | {0x0f,0x1f,0x00}; | |
634 | /* nopl 0(%[re]ax) */ | |
635 | static const char alt_4[] = | |
636 | {0x0f,0x1f,0x40,0x00}; | |
637 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
638 | static const char alt_5[] = | |
639 | {0x0f,0x1f,0x44,0x00,0x00}; | |
640 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
641 | static const char alt_6[] = | |
642 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
643 | /* nopl 0L(%[re]ax) */ | |
644 | static const char alt_7[] = | |
645 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
646 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
647 | static const char alt_8[] = | |
648 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
649 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
650 | static const char alt_9[] = | |
651 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
652 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
653 | static const char alt_10[] = | |
654 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
655 | /* data16 | |
656 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
657 | static const char alt_long_11[] = | |
658 | {0x66, | |
659 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
660 | /* data16 | |
661 | data16 | |
662 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
663 | static const char alt_long_12[] = | |
664 | {0x66, | |
665 | 0x66, | |
666 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
667 | /* data16 | |
668 | data16 | |
669 | data16 | |
670 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
671 | static const char alt_long_13[] = | |
672 | {0x66, | |
673 | 0x66, | |
674 | 0x66, | |
675 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
676 | /* data16 | |
677 | data16 | |
678 | data16 | |
679 | data16 | |
680 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
681 | static const char alt_long_14[] = | |
682 | {0x66, | |
683 | 0x66, | |
684 | 0x66, | |
685 | 0x66, | |
686 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
687 | /* data16 | |
688 | data16 | |
689 | data16 | |
690 | data16 | |
691 | data16 | |
692 | nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
693 | static const char alt_long_15[] = | |
694 | {0x66, | |
695 | 0x66, | |
696 | 0x66, | |
697 | 0x66, | |
698 | 0x66, | |
699 | 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
700 | /* nopl 0(%[re]ax,%[re]ax,1) | |
701 | nopw 0(%[re]ax,%[re]ax,1) */ | |
702 | static const char alt_short_11[] = | |
703 | {0x0f,0x1f,0x44,0x00,0x00, | |
704 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
705 | /* nopw 0(%[re]ax,%[re]ax,1) | |
706 | nopw 0(%[re]ax,%[re]ax,1) */ | |
707 | static const char alt_short_12[] = | |
708 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
709 | 0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
710 | /* nopw 0(%[re]ax,%[re]ax,1) | |
711 | nopl 0L(%[re]ax) */ | |
712 | static const char alt_short_13[] = | |
713 | {0x66,0x0f,0x1f,0x44,0x00,0x00, | |
714 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
715 | /* nopl 0L(%[re]ax) | |
716 | nopl 0L(%[re]ax) */ | |
717 | static const char alt_short_14[] = | |
718 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
719 | 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
720 | /* nopl 0L(%[re]ax) | |
721 | nopl 0L(%[re]ax,%[re]ax,1) */ | |
722 | static const char alt_short_15[] = | |
723 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00, | |
724 | 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
725 | static const char *const alt_short_patt[] = { | |
726 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
727 | alt_9, alt_10, alt_short_11, alt_short_12, alt_short_13, | |
728 | alt_short_14, alt_short_15 | |
729 | }; | |
730 | static const char *const alt_long_patt[] = { | |
731 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
732 | alt_9, alt_10, alt_long_11, alt_long_12, alt_long_13, | |
733 | alt_long_14, alt_long_15 | |
734 | }; | |
252b5132 | 735 | |
76bc74dc L |
736 | /* Only align for at least a positive non-zero boundary. */ |
737 | if (count <= 0 || count > MAX_MEM_FOR_RS_ALIGN_CODE) | |
33fef721 | 738 | return; |
3e73aa7c | 739 | |
ccc9c027 L |
740 | /* We need to decide which NOP sequence to use for 32bit and |
741 | 64bit. When -mtune= is used: | |
4eed87de | 742 | |
76bc74dc L |
743 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
744 | PROCESSOR_GENERIC32, f32_patt will be used. | |
745 | 2. For PROCESSOR_PENTIUMPRO, PROCESSOR_PENTIUM4, PROCESSOR_NOCONA, | |
746 | PROCESSOR_CORE, PROCESSOR_CORE2, and PROCESSOR_GENERIC64, | |
747 | alt_long_patt will be used. | |
748 | 3. For PROCESSOR_ATHLON, PROCESSOR_K6, PROCESSOR_K8 and | |
749 | PROCESSOR_AMDFAM10, alt_short_patt will be used. | |
ccc9c027 | 750 | |
76bc74dc L |
751 | When -mtune= isn't used, alt_long_patt will be used if |
752 | cpu_arch_isa_flags has Cpu686. Otherwise, f32_patt will | |
753 | be used. | |
ccc9c027 L |
754 | |
755 | When -march= or .arch is used, we can't use anything beyond | |
756 | cpu_arch_isa_flags. */ | |
757 | ||
758 | if (flag_code == CODE_16BIT) | |
759 | { | |
ccc9c027 | 760 | if (count > 8) |
33fef721 | 761 | { |
76bc74dc L |
762 | memcpy (fragP->fr_literal + fragP->fr_fix, |
763 | jump_31, count); | |
764 | /* Adjust jump offset. */ | |
765 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
252b5132 | 766 | } |
76bc74dc L |
767 | else |
768 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
769 | f16_patt[count - 1], count); | |
252b5132 | 770 | } |
33fef721 | 771 | else |
ccc9c027 L |
772 | { |
773 | const char *const *patt = NULL; | |
774 | ||
775 | if (cpu_arch_isa == PROCESSOR_UNKNOWN) | |
776 | { | |
777 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
778 | switch (cpu_arch_tune) | |
779 | { | |
780 | case PROCESSOR_UNKNOWN: | |
781 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
782 | optimize for Cpu686. */ | |
40fb9820 | 783 | if (cpu_arch_isa_flags.bitfield.cpui686) |
76bc74dc | 784 | patt = alt_long_patt; |
ccc9c027 L |
785 | else |
786 | patt = f32_patt; | |
787 | break; | |
ccc9c027 L |
788 | case PROCESSOR_PENTIUMPRO: |
789 | case PROCESSOR_PENTIUM4: | |
790 | case PROCESSOR_NOCONA: | |
ef05d495 | 791 | case PROCESSOR_CORE: |
76bc74dc L |
792 | case PROCESSOR_CORE2: |
793 | case PROCESSOR_GENERIC64: | |
794 | patt = alt_long_patt; | |
795 | break; | |
ccc9c027 L |
796 | case PROCESSOR_K6: |
797 | case PROCESSOR_ATHLON: | |
798 | case PROCESSOR_K8: | |
4eed87de | 799 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
800 | patt = alt_short_patt; |
801 | break; | |
76bc74dc | 802 | case PROCESSOR_I386: |
ccc9c027 L |
803 | case PROCESSOR_I486: |
804 | case PROCESSOR_PENTIUM: | |
805 | case PROCESSOR_GENERIC32: | |
806 | patt = f32_patt; | |
807 | break; | |
4eed87de | 808 | } |
ccc9c027 L |
809 | } |
810 | else | |
811 | { | |
812 | switch (cpu_arch_tune) | |
813 | { | |
814 | case PROCESSOR_UNKNOWN: | |
815 | /* When cpu_arch_isa is net, cpu_arch_tune shouldn't be | |
816 | PROCESSOR_UNKNOWN. */ | |
817 | abort (); | |
818 | break; | |
819 | ||
76bc74dc | 820 | case PROCESSOR_I386: |
ccc9c027 L |
821 | case PROCESSOR_I486: |
822 | case PROCESSOR_PENTIUM: | |
ccc9c027 L |
823 | case PROCESSOR_K6: |
824 | case PROCESSOR_ATHLON: | |
825 | case PROCESSOR_K8: | |
4eed87de | 826 | case PROCESSOR_AMDFAM10: |
ccc9c027 L |
827 | case PROCESSOR_GENERIC32: |
828 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
829 | for Cpu686. */ | |
40fb9820 | 830 | if (cpu_arch_isa_flags.bitfield.cpui686) |
ccc9c027 L |
831 | patt = alt_short_patt; |
832 | else | |
833 | patt = f32_patt; | |
834 | break; | |
76bc74dc L |
835 | case PROCESSOR_PENTIUMPRO: |
836 | case PROCESSOR_PENTIUM4: | |
837 | case PROCESSOR_NOCONA: | |
838 | case PROCESSOR_CORE: | |
ef05d495 | 839 | case PROCESSOR_CORE2: |
40fb9820 | 840 | if (cpu_arch_isa_flags.bitfield.cpui686) |
ccc9c027 L |
841 | patt = alt_long_patt; |
842 | else | |
843 | patt = f32_patt; | |
844 | break; | |
845 | case PROCESSOR_GENERIC64: | |
76bc74dc | 846 | patt = alt_long_patt; |
ccc9c027 | 847 | break; |
4eed87de | 848 | } |
ccc9c027 L |
849 | } |
850 | ||
76bc74dc L |
851 | if (patt == f32_patt) |
852 | { | |
853 | /* If the padding is less than 15 bytes, we use the normal | |
854 | ones. Otherwise, we use a jump instruction and adjust | |
855 | its offset. */ | |
856 | if (count < 15) | |
857 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
858 | patt[count - 1], count); | |
859 | else | |
860 | { | |
861 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
862 | jump_31, count); | |
863 | /* Adjust jump offset. */ | |
864 | fragP->fr_literal[fragP->fr_fix + 1] = count - 2; | |
865 | } | |
866 | } | |
867 | else | |
868 | { | |
869 | /* Maximum length of an instruction is 15 byte. If the | |
870 | padding is greater than 15 bytes and we don't use jump, | |
871 | we have to break it into smaller pieces. */ | |
872 | int padding = count; | |
873 | while (padding > 15) | |
874 | { | |
875 | padding -= 15; | |
876 | memcpy (fragP->fr_literal + fragP->fr_fix + padding, | |
877 | patt [14], 15); | |
878 | } | |
879 | ||
880 | if (padding) | |
881 | memcpy (fragP->fr_literal + fragP->fr_fix, | |
882 | patt [padding - 1], padding); | |
883 | } | |
ccc9c027 | 884 | } |
33fef721 | 885 | fragP->fr_var = count; |
252b5132 RH |
886 | } |
887 | ||
c6fb90c8 L |
888 | static INLINE int |
889 | uints_all_zero (const unsigned int *x, unsigned int size) | |
40fb9820 | 890 | { |
c6fb90c8 L |
891 | switch (size) |
892 | { | |
893 | case 3: | |
894 | if (x[2]) | |
895 | return 0; | |
896 | case 2: | |
897 | if (x[1]) | |
898 | return 0; | |
899 | case 1: | |
900 | return !x[0]; | |
901 | default: | |
902 | abort (); | |
903 | } | |
40fb9820 L |
904 | } |
905 | ||
c6fb90c8 L |
906 | static INLINE void |
907 | uints_set (unsigned int *x, unsigned int v, unsigned int size) | |
40fb9820 | 908 | { |
c6fb90c8 L |
909 | switch (size) |
910 | { | |
911 | case 3: | |
912 | x[2] = v; | |
913 | case 2: | |
914 | x[1] = v; | |
915 | case 1: | |
916 | x[0] = v; | |
917 | break; | |
918 | default: | |
919 | abort (); | |
920 | } | |
921 | } | |
40fb9820 | 922 | |
c6fb90c8 L |
923 | static INLINE int |
924 | uints_equal (const unsigned int *x, const unsigned int *y, | |
925 | unsigned int size) | |
926 | { | |
927 | switch (size) | |
928 | { | |
929 | case 3: | |
930 | if (x[2] != y [2]) | |
931 | return 0; | |
932 | case 2: | |
933 | if (x[1] != y [1]) | |
934 | return 0; | |
935 | case 1: | |
936 | return x[0] == y [0]; | |
937 | break; | |
938 | default: | |
939 | abort (); | |
940 | } | |
941 | } | |
40fb9820 | 942 | |
c6fb90c8 L |
943 | #define UINTS_ALL_ZERO(x) \ |
944 | uints_all_zero ((x).array, ARRAY_SIZE ((x).array)) | |
945 | #define UINTS_SET(x, v) \ | |
946 | uints_set ((x).array, v, ARRAY_SIZE ((x).array)) | |
947 | #define UINTS_CLEAR(x) \ | |
948 | uints_set ((x).array, 0, ARRAY_SIZE ((x).array)) | |
949 | #define UINTS_EQUAL(x, y) \ | |
950 | uints_equal ((x).array, (y).array, ARRAY_SIZE ((x).array)) | |
951 | ||
952 | static INLINE int | |
953 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
954 | { | |
955 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
956 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
957 | } |
958 | ||
c6fb90c8 | 959 | static INLINE i386_cpu_flags |
40fb9820 L |
960 | cpu_flags_not (i386_cpu_flags x) |
961 | { | |
c6fb90c8 L |
962 | switch (ARRAY_SIZE (x.array)) |
963 | { | |
964 | case 3: | |
965 | x.array [2] = ~x.array [2]; | |
966 | case 2: | |
967 | x.array [1] = ~x.array [1]; | |
968 | case 1: | |
969 | x.array [0] = ~x.array [0]; | |
970 | break; | |
971 | default: | |
972 | abort (); | |
973 | } | |
40fb9820 L |
974 | |
975 | #ifdef CpuUnused | |
976 | x.bitfield.unused = 0; | |
977 | #endif | |
978 | ||
979 | return x; | |
980 | } | |
981 | ||
c6fb90c8 L |
982 | static INLINE i386_cpu_flags |
983 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 984 | { |
c6fb90c8 L |
985 | switch (ARRAY_SIZE (x.array)) |
986 | { | |
987 | case 3: | |
988 | x.array [2] &= y.array [2]; | |
989 | case 2: | |
990 | x.array [1] &= y.array [1]; | |
991 | case 1: | |
992 | x.array [0] &= y.array [0]; | |
993 | break; | |
994 | default: | |
995 | abort (); | |
996 | } | |
997 | return x; | |
998 | } | |
40fb9820 | 999 | |
c6fb90c8 L |
1000 | static INLINE i386_cpu_flags |
1001 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1002 | { |
c6fb90c8 | 1003 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1004 | { |
c6fb90c8 L |
1005 | case 3: |
1006 | x.array [2] |= y.array [2]; | |
1007 | case 2: | |
1008 | x.array [1] |= y.array [1]; | |
1009 | case 1: | |
1010 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1011 | break; |
1012 | default: | |
1013 | abort (); | |
1014 | } | |
40fb9820 L |
1015 | return x; |
1016 | } | |
1017 | ||
1018 | static int | |
1019 | cpu_flags_match (i386_cpu_flags x) | |
1020 | { | |
1021 | i386_cpu_flags not = cpu_arch_flags_not; | |
1022 | ||
1023 | not.bitfield.cpu64 = 1; | |
1024 | not.bitfield.cpuno64 = 1; | |
1025 | ||
1026 | x.bitfield.cpu64 = 0; | |
1027 | x.bitfield.cpuno64 = 0; | |
1028 | ||
c6fb90c8 L |
1029 | not = cpu_flags_and (x, not); |
1030 | return UINTS_ALL_ZERO (not); | |
40fb9820 L |
1031 | } |
1032 | ||
c6fb90c8 L |
1033 | static INLINE i386_operand_type |
1034 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1035 | { |
c6fb90c8 L |
1036 | switch (ARRAY_SIZE (x.array)) |
1037 | { | |
1038 | case 3: | |
1039 | x.array [2] &= y.array [2]; | |
1040 | case 2: | |
1041 | x.array [1] &= y.array [1]; | |
1042 | case 1: | |
1043 | x.array [0] &= y.array [0]; | |
1044 | break; | |
1045 | default: | |
1046 | abort (); | |
1047 | } | |
1048 | return x; | |
40fb9820 L |
1049 | } |
1050 | ||
c6fb90c8 L |
1051 | static INLINE i386_operand_type |
1052 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1053 | { |
c6fb90c8 | 1054 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1055 | { |
c6fb90c8 L |
1056 | case 3: |
1057 | x.array [2] |= y.array [2]; | |
1058 | case 2: | |
1059 | x.array [1] |= y.array [1]; | |
1060 | case 1: | |
1061 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1062 | break; |
1063 | default: | |
1064 | abort (); | |
1065 | } | |
c6fb90c8 L |
1066 | return x; |
1067 | } | |
40fb9820 | 1068 | |
c6fb90c8 L |
1069 | static INLINE i386_operand_type |
1070 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
1071 | { | |
1072 | switch (ARRAY_SIZE (x.array)) | |
1073 | { | |
1074 | case 3: | |
1075 | x.array [2] ^= y.array [2]; | |
1076 | case 2: | |
1077 | x.array [1] ^= y.array [1]; | |
1078 | case 1: | |
1079 | x.array [0] ^= y.array [0]; | |
1080 | break; | |
1081 | default: | |
1082 | abort (); | |
1083 | } | |
40fb9820 L |
1084 | return x; |
1085 | } | |
1086 | ||
1087 | static const i386_operand_type acc32 = OPERAND_TYPE_ACC32; | |
1088 | static const i386_operand_type acc64 = OPERAND_TYPE_ACC64; | |
1089 | static const i386_operand_type control = OPERAND_TYPE_CONTROL; | |
1090 | static const i386_operand_type reg16_inoutportreg | |
1091 | = OPERAND_TYPE_REG16_INOUTPORTREG; | |
1092 | static const i386_operand_type disp16 = OPERAND_TYPE_DISP16; | |
1093 | static const i386_operand_type disp32 = OPERAND_TYPE_DISP32; | |
1094 | static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S; | |
1095 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; | |
1096 | static const i386_operand_type anydisp | |
1097 | = OPERAND_TYPE_ANYDISP; | |
40fb9820 L |
1098 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
1099 | static const i386_operand_type imm8 = OPERAND_TYPE_IMM8; | |
1100 | static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S; | |
1101 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; | |
1102 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
1103 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
1104 | static const i386_operand_type imm64 = OPERAND_TYPE_IMM64; | |
1105 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; | |
1106 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
1107 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
1108 | ||
1109 | enum operand_type | |
1110 | { | |
1111 | reg, | |
40fb9820 L |
1112 | imm, |
1113 | disp, | |
1114 | anymem | |
1115 | }; | |
1116 | ||
c6fb90c8 | 1117 | static INLINE int |
40fb9820 L |
1118 | operand_type_check (i386_operand_type t, enum operand_type c) |
1119 | { | |
1120 | switch (c) | |
1121 | { | |
1122 | case reg: | |
1123 | return (t.bitfield.reg8 | |
1124 | || t.bitfield.reg16 | |
1125 | || t.bitfield.reg32 | |
1126 | || t.bitfield.reg64); | |
1127 | ||
40fb9820 L |
1128 | case imm: |
1129 | return (t.bitfield.imm8 | |
1130 | || t.bitfield.imm8s | |
1131 | || t.bitfield.imm16 | |
1132 | || t.bitfield.imm32 | |
1133 | || t.bitfield.imm32s | |
1134 | || t.bitfield.imm64); | |
1135 | ||
1136 | case disp: | |
1137 | return (t.bitfield.disp8 | |
1138 | || t.bitfield.disp16 | |
1139 | || t.bitfield.disp32 | |
1140 | || t.bitfield.disp32s | |
1141 | || t.bitfield.disp64); | |
1142 | ||
1143 | case anymem: | |
1144 | return (t.bitfield.disp8 | |
1145 | || t.bitfield.disp16 | |
1146 | || t.bitfield.disp32 | |
1147 | || t.bitfield.disp32s | |
1148 | || t.bitfield.disp64 | |
1149 | || t.bitfield.baseindex); | |
1150 | ||
1151 | default: | |
1152 | abort (); | |
1153 | } | |
1154 | } | |
1155 | ||
c6fb90c8 | 1156 | static INLINE int |
40fb9820 L |
1157 | operand_type_match (i386_operand_type overlap, |
1158 | i386_operand_type given) | |
1159 | { | |
1160 | i386_operand_type temp = overlap; | |
1161 | ||
1162 | temp.bitfield.jumpabsolute = 0; | |
c6fb90c8 | 1163 | if (UINTS_ALL_ZERO (temp)) |
40fb9820 L |
1164 | return 0; |
1165 | ||
1166 | return (given.bitfield.baseindex == overlap.bitfield.baseindex | |
1167 | && given.bitfield.jumpabsolute == overlap.bitfield.jumpabsolute); | |
1168 | } | |
1169 | ||
1170 | /* If given types r0 and r1 are registers they must be of the same type | |
1171 | unless the expected operand type register overlap is null. | |
1172 | Note that Acc in a template matches every size of reg. */ | |
1173 | ||
c6fb90c8 | 1174 | static INLINE int |
40fb9820 L |
1175 | operand_type_register_match (i386_operand_type m0, |
1176 | i386_operand_type g0, | |
1177 | i386_operand_type t0, | |
1178 | i386_operand_type m1, | |
1179 | i386_operand_type g1, | |
1180 | i386_operand_type t1) | |
1181 | { | |
1182 | if (!operand_type_check (g0, reg)) | |
1183 | return 1; | |
1184 | ||
1185 | if (!operand_type_check (g1, reg)) | |
1186 | return 1; | |
1187 | ||
1188 | if (g0.bitfield.reg8 == g1.bitfield.reg8 | |
1189 | && g0.bitfield.reg16 == g1.bitfield.reg16 | |
1190 | && g0.bitfield.reg32 == g1.bitfield.reg32 | |
1191 | && g0.bitfield.reg64 == g1.bitfield.reg64) | |
1192 | return 1; | |
1193 | ||
1194 | if (m0.bitfield.acc) | |
1195 | { | |
1196 | t0.bitfield.reg8 = 1; | |
1197 | t0.bitfield.reg16 = 1; | |
1198 | t0.bitfield.reg32 = 1; | |
1199 | t0.bitfield.reg64 = 1; | |
1200 | } | |
1201 | ||
1202 | if (m1.bitfield.acc) | |
1203 | { | |
1204 | t1.bitfield.reg8 = 1; | |
1205 | t1.bitfield.reg16 = 1; | |
1206 | t1.bitfield.reg32 = 1; | |
1207 | t1.bitfield.reg64 = 1; | |
1208 | } | |
1209 | ||
1210 | return (!(t0.bitfield.reg8 & t1.bitfield.reg8) | |
1211 | && !(t0.bitfield.reg16 & t1.bitfield.reg16) | |
1212 | && !(t0.bitfield.reg32 & t1.bitfield.reg32) | |
1213 | && !(t0.bitfield.reg64 & t1.bitfield.reg64)); | |
1214 | } | |
1215 | ||
252b5132 | 1216 | static INLINE unsigned int |
40fb9820 | 1217 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 1218 | { |
40fb9820 L |
1219 | if (t.bitfield.disp8) |
1220 | return 1; | |
1221 | else if (t.bitfield.disp16 | |
1222 | || t.bitfield.disp32 | |
1223 | || t.bitfield.disp32s) | |
1224 | return 2; | |
1225 | else | |
1226 | return 0; | |
252b5132 RH |
1227 | } |
1228 | ||
1229 | static INLINE int | |
e3bb37b5 | 1230 | fits_in_signed_byte (offsetT num) |
252b5132 RH |
1231 | { |
1232 | return (num >= -128) && (num <= 127); | |
47926f60 | 1233 | } |
252b5132 RH |
1234 | |
1235 | static INLINE int | |
e3bb37b5 | 1236 | fits_in_unsigned_byte (offsetT num) |
252b5132 RH |
1237 | { |
1238 | return (num & 0xff) == num; | |
47926f60 | 1239 | } |
252b5132 RH |
1240 | |
1241 | static INLINE int | |
e3bb37b5 | 1242 | fits_in_unsigned_word (offsetT num) |
252b5132 RH |
1243 | { |
1244 | return (num & 0xffff) == num; | |
47926f60 | 1245 | } |
252b5132 RH |
1246 | |
1247 | static INLINE int | |
e3bb37b5 | 1248 | fits_in_signed_word (offsetT num) |
252b5132 RH |
1249 | { |
1250 | return (-32768 <= num) && (num <= 32767); | |
47926f60 | 1251 | } |
2a962e6d | 1252 | |
3e73aa7c | 1253 | static INLINE int |
e3bb37b5 | 1254 | fits_in_signed_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1255 | { |
1256 | #ifndef BFD64 | |
1257 | return 1; | |
1258 | #else | |
1259 | return (!(((offsetT) -1 << 31) & num) | |
1260 | || (((offsetT) -1 << 31) & num) == ((offsetT) -1 << 31)); | |
1261 | #endif | |
1262 | } /* fits_in_signed_long() */ | |
2a962e6d | 1263 | |
3e73aa7c | 1264 | static INLINE int |
e3bb37b5 | 1265 | fits_in_unsigned_long (offsetT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
1266 | { |
1267 | #ifndef BFD64 | |
1268 | return 1; | |
1269 | #else | |
1270 | return (num & (((offsetT) 2 << 31) - 1)) == num; | |
1271 | #endif | |
1272 | } /* fits_in_unsigned_long() */ | |
252b5132 | 1273 | |
40fb9820 | 1274 | static i386_operand_type |
e3bb37b5 | 1275 | smallest_imm_type (offsetT num) |
252b5132 | 1276 | { |
40fb9820 L |
1277 | i386_operand_type t; |
1278 | ||
c6fb90c8 | 1279 | UINTS_CLEAR (t); |
40fb9820 L |
1280 | t.bitfield.imm64 = 1; |
1281 | ||
1282 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
1283 | { |
1284 | /* This code is disabled on the 486 because all the Imm1 forms | |
1285 | in the opcode table are slower on the i486. They're the | |
1286 | versions with the implicitly specified single-position | |
1287 | displacement, which has another syntax if you really want to | |
1288 | use that form. */ | |
40fb9820 L |
1289 | t.bitfield.imm1 = 1; |
1290 | t.bitfield.imm8 = 1; | |
1291 | t.bitfield.imm8s = 1; | |
1292 | t.bitfield.imm16 = 1; | |
1293 | t.bitfield.imm32 = 1; | |
1294 | t.bitfield.imm32s = 1; | |
1295 | } | |
1296 | else if (fits_in_signed_byte (num)) | |
1297 | { | |
1298 | t.bitfield.imm8 = 1; | |
1299 | t.bitfield.imm8s = 1; | |
1300 | t.bitfield.imm16 = 1; | |
1301 | t.bitfield.imm32 = 1; | |
1302 | t.bitfield.imm32s = 1; | |
1303 | } | |
1304 | else if (fits_in_unsigned_byte (num)) | |
1305 | { | |
1306 | t.bitfield.imm8 = 1; | |
1307 | t.bitfield.imm16 = 1; | |
1308 | t.bitfield.imm32 = 1; | |
1309 | t.bitfield.imm32s = 1; | |
1310 | } | |
1311 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
1312 | { | |
1313 | t.bitfield.imm16 = 1; | |
1314 | t.bitfield.imm32 = 1; | |
1315 | t.bitfield.imm32s = 1; | |
1316 | } | |
1317 | else if (fits_in_signed_long (num)) | |
1318 | { | |
1319 | t.bitfield.imm32 = 1; | |
1320 | t.bitfield.imm32s = 1; | |
1321 | } | |
1322 | else if (fits_in_unsigned_long (num)) | |
1323 | t.bitfield.imm32 = 1; | |
1324 | ||
1325 | return t; | |
47926f60 | 1326 | } |
252b5132 | 1327 | |
847f7ad4 | 1328 | static offsetT |
e3bb37b5 | 1329 | offset_in_range (offsetT val, int size) |
847f7ad4 | 1330 | { |
508866be | 1331 | addressT mask; |
ba2adb93 | 1332 | |
847f7ad4 AM |
1333 | switch (size) |
1334 | { | |
508866be L |
1335 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
1336 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3b0ec529 | 1337 | case 4: mask = ((addressT) 2 << 31) - 1; break; |
3e73aa7c JH |
1338 | #ifdef BFD64 |
1339 | case 8: mask = ((addressT) 2 << 63) - 1; break; | |
1340 | #endif | |
47926f60 | 1341 | default: abort (); |
847f7ad4 AM |
1342 | } |
1343 | ||
ba2adb93 | 1344 | /* If BFD64, sign extend val. */ |
3e73aa7c JH |
1345 | if (!use_rela_relocations) |
1346 | if ((val & ~(((addressT) 2 << 31) - 1)) == 0) | |
1347 | val = (val ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
ba2adb93 | 1348 | |
47926f60 | 1349 | if ((val & ~mask) != 0 && (val & ~mask) != ~mask) |
847f7ad4 AM |
1350 | { |
1351 | char buf1[40], buf2[40]; | |
1352 | ||
1353 | sprint_value (buf1, val); | |
1354 | sprint_value (buf2, val & mask); | |
1355 | as_warn (_("%s shortened to %s"), buf1, buf2); | |
1356 | } | |
1357 | return val & mask; | |
1358 | } | |
1359 | ||
252b5132 RH |
1360 | /* Returns 0 if attempting to add a prefix where one from the same |
1361 | class already exists, 1 if non rep/repne added, 2 if rep/repne | |
1362 | added. */ | |
1363 | static int | |
e3bb37b5 | 1364 | add_prefix (unsigned int prefix) |
252b5132 RH |
1365 | { |
1366 | int ret = 1; | |
b1905489 | 1367 | unsigned int q; |
252b5132 | 1368 | |
29b0f896 AM |
1369 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
1370 | && flag_code == CODE_64BIT) | |
b1905489 | 1371 | { |
161a04f6 L |
1372 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
1373 | || ((i.prefix[REX_PREFIX] & (REX_R | REX_X | REX_B)) | |
1374 | && (prefix & (REX_R | REX_X | REX_B)))) | |
b1905489 JB |
1375 | ret = 0; |
1376 | q = REX_PREFIX; | |
1377 | } | |
3e73aa7c | 1378 | else |
b1905489 JB |
1379 | { |
1380 | switch (prefix) | |
1381 | { | |
1382 | default: | |
1383 | abort (); | |
1384 | ||
1385 | case CS_PREFIX_OPCODE: | |
1386 | case DS_PREFIX_OPCODE: | |
1387 | case ES_PREFIX_OPCODE: | |
1388 | case FS_PREFIX_OPCODE: | |
1389 | case GS_PREFIX_OPCODE: | |
1390 | case SS_PREFIX_OPCODE: | |
1391 | q = SEG_PREFIX; | |
1392 | break; | |
1393 | ||
1394 | case REPNE_PREFIX_OPCODE: | |
1395 | case REPE_PREFIX_OPCODE: | |
1396 | ret = 2; | |
1397 | /* fall thru */ | |
1398 | case LOCK_PREFIX_OPCODE: | |
1399 | q = LOCKREP_PREFIX; | |
1400 | break; | |
1401 | ||
1402 | case FWAIT_OPCODE: | |
1403 | q = WAIT_PREFIX; | |
1404 | break; | |
1405 | ||
1406 | case ADDR_PREFIX_OPCODE: | |
1407 | q = ADDR_PREFIX; | |
1408 | break; | |
1409 | ||
1410 | case DATA_PREFIX_OPCODE: | |
1411 | q = DATA_PREFIX; | |
1412 | break; | |
1413 | } | |
1414 | if (i.prefix[q] != 0) | |
1415 | ret = 0; | |
1416 | } | |
252b5132 | 1417 | |
b1905489 | 1418 | if (ret) |
252b5132 | 1419 | { |
b1905489 JB |
1420 | if (!i.prefix[q]) |
1421 | ++i.prefixes; | |
1422 | i.prefix[q] |= prefix; | |
252b5132 | 1423 | } |
b1905489 JB |
1424 | else |
1425 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 1426 | |
252b5132 RH |
1427 | return ret; |
1428 | } | |
1429 | ||
1430 | static void | |
e3bb37b5 | 1431 | set_code_flag (int value) |
eecb386c | 1432 | { |
3e73aa7c | 1433 | flag_code = value; |
40fb9820 L |
1434 | if (flag_code == CODE_64BIT) |
1435 | { | |
1436 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1437 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
1438 | cpu_arch_flags_not.bitfield.cpu64 = 0; | |
1439 | cpu_arch_flags_not.bitfield.cpuno64 = 1; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1444 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
1445 | cpu_arch_flags_not.bitfield.cpu64 = 1; | |
1446 | cpu_arch_flags_not.bitfield.cpuno64 = 0; | |
1447 | } | |
1448 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c JH |
1449 | { |
1450 | as_bad (_("64bit mode not supported on this CPU.")); | |
1451 | } | |
40fb9820 | 1452 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c JH |
1453 | { |
1454 | as_bad (_("32bit mode not supported on this CPU.")); | |
1455 | } | |
eecb386c AM |
1456 | stackop_size = '\0'; |
1457 | } | |
1458 | ||
1459 | static void | |
e3bb37b5 | 1460 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 1461 | { |
3e73aa7c | 1462 | flag_code = new_code_flag; |
40fb9820 L |
1463 | if (flag_code != CODE_16BIT) |
1464 | abort (); | |
1465 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1466 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
1467 | cpu_arch_flags_not.bitfield.cpu64 = 1; | |
1468 | cpu_arch_flags_not.bitfield.cpuno64 = 0; | |
9306ca4a | 1469 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
1470 | } |
1471 | ||
1472 | static void | |
e3bb37b5 | 1473 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
1474 | { |
1475 | /* Find out if register prefixing is specified. */ | |
1476 | int ask_naked_reg = 0; | |
1477 | ||
1478 | SKIP_WHITESPACE (); | |
29b0f896 | 1479 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 RH |
1480 | { |
1481 | char *string = input_line_pointer; | |
1482 | int e = get_symbol_end (); | |
1483 | ||
47926f60 | 1484 | if (strcmp (string, "prefix") == 0) |
252b5132 | 1485 | ask_naked_reg = 1; |
47926f60 | 1486 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
1487 | ask_naked_reg = -1; |
1488 | else | |
d0b47220 | 1489 | as_bad (_("bad argument to syntax directive.")); |
252b5132 RH |
1490 | *input_line_pointer = e; |
1491 | } | |
1492 | demand_empty_rest_of_line (); | |
c3332e24 | 1493 | |
252b5132 RH |
1494 | intel_syntax = syntax_flag; |
1495 | ||
1496 | if (ask_naked_reg == 0) | |
f86103b7 AM |
1497 | allow_naked_reg = (intel_syntax |
1498 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
1499 | else |
1500 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 1501 | |
e4a3b5a4 | 1502 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 1503 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 1504 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
1505 | } |
1506 | ||
db51cc60 L |
1507 | static void |
1508 | set_allow_index_reg (int flag) | |
1509 | { | |
1510 | allow_index_reg = flag; | |
1511 | } | |
1512 | ||
e413e4e9 | 1513 | static void |
e3bb37b5 | 1514 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 1515 | { |
47926f60 | 1516 | SKIP_WHITESPACE (); |
e413e4e9 | 1517 | |
29b0f896 | 1518 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 AM |
1519 | { |
1520 | char *string = input_line_pointer; | |
1521 | int e = get_symbol_end (); | |
9103f4f4 | 1522 | unsigned int i; |
40fb9820 | 1523 | i386_cpu_flags flags; |
e413e4e9 | 1524 | |
9103f4f4 | 1525 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) |
e413e4e9 AM |
1526 | { |
1527 | if (strcmp (string, cpu_arch[i].name) == 0) | |
1528 | { | |
5c6af06e JB |
1529 | if (*string != '.') |
1530 | { | |
1531 | cpu_arch_name = cpu_arch[i].name; | |
1532 | cpu_sub_arch_name = NULL; | |
40fb9820 L |
1533 | cpu_arch_flags = cpu_arch[i].flags; |
1534 | if (flag_code == CODE_64BIT) | |
1535 | { | |
1536 | cpu_arch_flags.bitfield.cpu64 = 1; | |
1537 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
1538 | } | |
1539 | else | |
1540 | { | |
1541 | cpu_arch_flags.bitfield.cpu64 = 0; | |
1542 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
1543 | } | |
1544 | cpu_arch_flags_not = cpu_flags_not (cpu_arch_flags); | |
ccc9c027 | 1545 | cpu_arch_isa = cpu_arch[i].type; |
9103f4f4 | 1546 | cpu_arch_isa_flags = cpu_arch[i].flags; |
ccc9c027 L |
1547 | if (!cpu_arch_tune_set) |
1548 | { | |
1549 | cpu_arch_tune = cpu_arch_isa; | |
1550 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
1551 | } | |
5c6af06e JB |
1552 | break; |
1553 | } | |
40fb9820 | 1554 | |
c6fb90c8 L |
1555 | flags = cpu_flags_or (cpu_arch_flags, |
1556 | cpu_arch[i].flags); | |
1557 | if (!UINTS_EQUAL (flags, cpu_arch_flags)) | |
5c6af06e JB |
1558 | { |
1559 | cpu_sub_arch_name = cpu_arch[i].name; | |
40fb9820 L |
1560 | cpu_arch_flags = flags; |
1561 | cpu_arch_flags_not = cpu_flags_not (cpu_arch_flags); | |
5c6af06e JB |
1562 | } |
1563 | *input_line_pointer = e; | |
1564 | demand_empty_rest_of_line (); | |
1565 | return; | |
e413e4e9 AM |
1566 | } |
1567 | } | |
9103f4f4 | 1568 | if (i >= ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
1569 | as_bad (_("no such architecture: `%s'"), string); |
1570 | ||
1571 | *input_line_pointer = e; | |
1572 | } | |
1573 | else | |
1574 | as_bad (_("missing cpu architecture")); | |
1575 | ||
fddf5b5b AM |
1576 | no_cond_jump_promotion = 0; |
1577 | if (*input_line_pointer == ',' | |
29b0f896 | 1578 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b AM |
1579 | { |
1580 | char *string = ++input_line_pointer; | |
1581 | int e = get_symbol_end (); | |
1582 | ||
1583 | if (strcmp (string, "nojumps") == 0) | |
1584 | no_cond_jump_promotion = 1; | |
1585 | else if (strcmp (string, "jumps") == 0) | |
1586 | ; | |
1587 | else | |
1588 | as_bad (_("no such architecture modifier: `%s'"), string); | |
1589 | ||
1590 | *input_line_pointer = e; | |
1591 | } | |
1592 | ||
e413e4e9 AM |
1593 | demand_empty_rest_of_line (); |
1594 | } | |
1595 | ||
b9d79e03 JH |
1596 | unsigned long |
1597 | i386_mach () | |
1598 | { | |
1599 | if (!strcmp (default_arch, "x86_64")) | |
1600 | return bfd_mach_x86_64; | |
1601 | else if (!strcmp (default_arch, "i386")) | |
1602 | return bfd_mach_i386_i386; | |
1603 | else | |
1604 | as_fatal (_("Unknown architecture")); | |
1605 | } | |
b9d79e03 | 1606 | \f |
252b5132 RH |
1607 | void |
1608 | md_begin () | |
1609 | { | |
1610 | const char *hash_err; | |
1611 | ||
40fb9820 L |
1612 | cpu_arch_flags_not = cpu_flags_not (cpu_arch_flags); |
1613 | ||
47926f60 | 1614 | /* Initialize op_hash hash table. */ |
252b5132 RH |
1615 | op_hash = hash_new (); |
1616 | ||
1617 | { | |
29b0f896 AM |
1618 | const template *optab; |
1619 | templates *core_optab; | |
252b5132 | 1620 | |
47926f60 KH |
1621 | /* Setup for loop. */ |
1622 | optab = i386_optab; | |
252b5132 RH |
1623 | core_optab = (templates *) xmalloc (sizeof (templates)); |
1624 | core_optab->start = optab; | |
1625 | ||
1626 | while (1) | |
1627 | { | |
1628 | ++optab; | |
1629 | if (optab->name == NULL | |
1630 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
1631 | { | |
1632 | /* different name --> ship out current template list; | |
47926f60 | 1633 | add to hash table; & begin anew. */ |
252b5132 RH |
1634 | core_optab->end = optab; |
1635 | hash_err = hash_insert (op_hash, | |
1636 | (optab - 1)->name, | |
1637 | (PTR) core_optab); | |
1638 | if (hash_err) | |
1639 | { | |
252b5132 RH |
1640 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
1641 | (optab - 1)->name, | |
1642 | hash_err); | |
1643 | } | |
1644 | if (optab->name == NULL) | |
1645 | break; | |
1646 | core_optab = (templates *) xmalloc (sizeof (templates)); | |
1647 | core_optab->start = optab; | |
1648 | } | |
1649 | } | |
1650 | } | |
1651 | ||
47926f60 | 1652 | /* Initialize reg_hash hash table. */ |
252b5132 RH |
1653 | reg_hash = hash_new (); |
1654 | { | |
29b0f896 | 1655 | const reg_entry *regtab; |
c3fe08fa | 1656 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 1657 | |
c3fe08fa | 1658 | for (regtab = i386_regtab; regtab_size--; regtab++) |
252b5132 RH |
1659 | { |
1660 | hash_err = hash_insert (reg_hash, regtab->reg_name, (PTR) regtab); | |
1661 | if (hash_err) | |
3e73aa7c JH |
1662 | as_fatal (_("Internal Error: Can't hash %s: %s"), |
1663 | regtab->reg_name, | |
1664 | hash_err); | |
252b5132 RH |
1665 | } |
1666 | } | |
1667 | ||
47926f60 | 1668 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 1669 | { |
29b0f896 AM |
1670 | int c; |
1671 | char *p; | |
252b5132 RH |
1672 | |
1673 | for (c = 0; c < 256; c++) | |
1674 | { | |
3882b010 | 1675 | if (ISDIGIT (c)) |
252b5132 RH |
1676 | { |
1677 | digit_chars[c] = c; | |
1678 | mnemonic_chars[c] = c; | |
1679 | register_chars[c] = c; | |
1680 | operand_chars[c] = c; | |
1681 | } | |
3882b010 | 1682 | else if (ISLOWER (c)) |
252b5132 RH |
1683 | { |
1684 | mnemonic_chars[c] = c; | |
1685 | register_chars[c] = c; | |
1686 | operand_chars[c] = c; | |
1687 | } | |
3882b010 | 1688 | else if (ISUPPER (c)) |
252b5132 | 1689 | { |
3882b010 | 1690 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
1691 | register_chars[c] = mnemonic_chars[c]; |
1692 | operand_chars[c] = c; | |
1693 | } | |
1694 | ||
3882b010 | 1695 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
1696 | identifier_chars[c] = c; |
1697 | else if (c >= 128) | |
1698 | { | |
1699 | identifier_chars[c] = c; | |
1700 | operand_chars[c] = c; | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | #ifdef LEX_AT | |
1705 | identifier_chars['@'] = '@'; | |
32137342 NC |
1706 | #endif |
1707 | #ifdef LEX_QM | |
1708 | identifier_chars['?'] = '?'; | |
1709 | operand_chars['?'] = '?'; | |
252b5132 | 1710 | #endif |
252b5132 | 1711 | digit_chars['-'] = '-'; |
791fe849 | 1712 | mnemonic_chars['-'] = '-'; |
0003779b | 1713 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
1714 | identifier_chars['_'] = '_'; |
1715 | identifier_chars['.'] = '.'; | |
1716 | ||
1717 | for (p = operand_special_chars; *p != '\0'; p++) | |
1718 | operand_chars[(unsigned char) *p] = *p; | |
1719 | } | |
1720 | ||
1721 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 1722 | if (IS_ELF) |
252b5132 RH |
1723 | { |
1724 | record_alignment (text_section, 2); | |
1725 | record_alignment (data_section, 2); | |
1726 | record_alignment (bss_section, 2); | |
1727 | } | |
1728 | #endif | |
a4447b93 RH |
1729 | |
1730 | if (flag_code == CODE_64BIT) | |
1731 | { | |
1732 | x86_dwarf2_return_column = 16; | |
1733 | x86_cie_data_alignment = -8; | |
1734 | } | |
1735 | else | |
1736 | { | |
1737 | x86_dwarf2_return_column = 8; | |
1738 | x86_cie_data_alignment = -4; | |
1739 | } | |
252b5132 RH |
1740 | } |
1741 | ||
1742 | void | |
e3bb37b5 | 1743 | i386_print_statistics (FILE *file) |
252b5132 RH |
1744 | { |
1745 | hash_print_statistics (file, "i386 opcode", op_hash); | |
1746 | hash_print_statistics (file, "i386 register", reg_hash); | |
1747 | } | |
1748 | \f | |
252b5132 RH |
1749 | #ifdef DEBUG386 |
1750 | ||
ce8a8b2f | 1751 | /* Debugging routines for md_assemble. */ |
e3bb37b5 | 1752 | static void pte (template *); |
40fb9820 | 1753 | static void pt (i386_operand_type); |
e3bb37b5 L |
1754 | static void pe (expressionS *); |
1755 | static void ps (symbolS *); | |
252b5132 RH |
1756 | |
1757 | static void | |
e3bb37b5 | 1758 | pi (char *line, i386_insn *x) |
252b5132 | 1759 | { |
09f131f2 | 1760 | unsigned int i; |
252b5132 RH |
1761 | |
1762 | fprintf (stdout, "%s: template ", line); | |
1763 | pte (&x->tm); | |
09f131f2 JH |
1764 | fprintf (stdout, " address: base %s index %s scale %x\n", |
1765 | x->base_reg ? x->base_reg->reg_name : "none", | |
1766 | x->index_reg ? x->index_reg->reg_name : "none", | |
1767 | x->log2_scale_factor); | |
1768 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 1769 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
1770 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
1771 | x->sib.base, x->sib.index, x->sib.scale); | |
1772 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
1773 | (x->rex & REX_W) != 0, |
1774 | (x->rex & REX_R) != 0, | |
1775 | (x->rex & REX_X) != 0, | |
1776 | (x->rex & REX_B) != 0); | |
85f10a01 MM |
1777 | fprintf (stdout, " drex: reg %d rex 0x%x\n", |
1778 | x->drex.reg, x->drex.rex); | |
252b5132 RH |
1779 | for (i = 0; i < x->operands; i++) |
1780 | { | |
1781 | fprintf (stdout, " #%d: ", i + 1); | |
1782 | pt (x->types[i]); | |
1783 | fprintf (stdout, "\n"); | |
40fb9820 L |
1784 | if (x->types[i].bitfield.reg8 |
1785 | || x->types[i].bitfield.reg16 | |
1786 | || x->types[i].bitfield.reg32 | |
1787 | || x->types[i].bitfield.reg64 | |
1788 | || x->types[i].bitfield.regmmx | |
1789 | || x->types[i].bitfield.regxmm | |
1790 | || x->types[i].bitfield.sreg2 | |
1791 | || x->types[i].bitfield.sreg3 | |
1792 | || x->types[i].bitfield.control | |
1793 | || x->types[i].bitfield.debug | |
1794 | || x->types[i].bitfield.test) | |
520dc8e8 | 1795 | fprintf (stdout, "%s\n", x->op[i].regs->reg_name); |
40fb9820 | 1796 | if (operand_type_check (x->types[i], imm)) |
520dc8e8 | 1797 | pe (x->op[i].imms); |
40fb9820 | 1798 | if (operand_type_check (x->types[i], disp)) |
520dc8e8 | 1799 | pe (x->op[i].disps); |
252b5132 RH |
1800 | } |
1801 | } | |
1802 | ||
1803 | static void | |
e3bb37b5 | 1804 | pte (template *t) |
252b5132 | 1805 | { |
09f131f2 | 1806 | unsigned int i; |
252b5132 | 1807 | fprintf (stdout, " %d operands ", t->operands); |
47926f60 | 1808 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
1809 | if (t->extension_opcode != None) |
1810 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 1811 | if (t->opcode_modifier.d) |
252b5132 | 1812 | fprintf (stdout, "D"); |
40fb9820 | 1813 | if (t->opcode_modifier.w) |
252b5132 RH |
1814 | fprintf (stdout, "W"); |
1815 | fprintf (stdout, "\n"); | |
1816 | for (i = 0; i < t->operands; i++) | |
1817 | { | |
1818 | fprintf (stdout, " #%d type ", i + 1); | |
1819 | pt (t->operand_types[i]); | |
1820 | fprintf (stdout, "\n"); | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | static void | |
e3bb37b5 | 1825 | pe (expressionS *e) |
252b5132 | 1826 | { |
24eab124 | 1827 | fprintf (stdout, " operation %d\n", e->X_op); |
b77ad1d4 AM |
1828 | fprintf (stdout, " add_number %ld (%lx)\n", |
1829 | (long) e->X_add_number, (long) e->X_add_number); | |
252b5132 RH |
1830 | if (e->X_add_symbol) |
1831 | { | |
1832 | fprintf (stdout, " add_symbol "); | |
1833 | ps (e->X_add_symbol); | |
1834 | fprintf (stdout, "\n"); | |
1835 | } | |
1836 | if (e->X_op_symbol) | |
1837 | { | |
1838 | fprintf (stdout, " op_symbol "); | |
1839 | ps (e->X_op_symbol); | |
1840 | fprintf (stdout, "\n"); | |
1841 | } | |
1842 | } | |
1843 | ||
1844 | static void | |
e3bb37b5 | 1845 | ps (symbolS *s) |
252b5132 RH |
1846 | { |
1847 | fprintf (stdout, "%s type %s%s", | |
1848 | S_GET_NAME (s), | |
1849 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
1850 | segment_name (S_GET_SEGMENT (s))); | |
1851 | } | |
1852 | ||
7b81dfbb | 1853 | static struct type_name |
252b5132 | 1854 | { |
40fb9820 L |
1855 | i386_operand_type mask; |
1856 | const char *name; | |
252b5132 | 1857 | } |
7b81dfbb | 1858 | const type_names[] = |
252b5132 | 1859 | { |
40fb9820 L |
1860 | { OPERAND_TYPE_REG8, "r8" }, |
1861 | { OPERAND_TYPE_REG16, "r16" }, | |
1862 | { OPERAND_TYPE_REG32, "r32" }, | |
1863 | { OPERAND_TYPE_REG64, "r64" }, | |
1864 | { OPERAND_TYPE_IMM8, "i8" }, | |
1865 | { OPERAND_TYPE_IMM8, "i8s" }, | |
1866 | { OPERAND_TYPE_IMM16, "i16" }, | |
1867 | { OPERAND_TYPE_IMM32, "i32" }, | |
1868 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
1869 | { OPERAND_TYPE_IMM64, "i64" }, | |
1870 | { OPERAND_TYPE_IMM1, "i1" }, | |
1871 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
1872 | { OPERAND_TYPE_DISP8, "d8" }, | |
1873 | { OPERAND_TYPE_DISP16, "d16" }, | |
1874 | { OPERAND_TYPE_DISP32, "d32" }, | |
1875 | { OPERAND_TYPE_DISP32S, "d32s" }, | |
1876 | { OPERAND_TYPE_DISP64, "d64" }, | |
1877 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
1878 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
1879 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
1880 | { OPERAND_TYPE_TEST, "test reg" }, | |
1881 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
1882 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
1883 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
1884 | { OPERAND_TYPE_SREG2, "SReg2" }, | |
1885 | { OPERAND_TYPE_SREG3, "SReg3" }, | |
1886 | { OPERAND_TYPE_ACC, "Acc" }, | |
1887 | { OPERAND_TYPE_JUMPABSOLUTE, "Jump Absolute" }, | |
1888 | { OPERAND_TYPE_REGMMX, "rMMX" }, | |
1889 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
1890 | { OPERAND_TYPE_ESSEG, "es" }, | |
252b5132 RH |
1891 | }; |
1892 | ||
1893 | static void | |
40fb9820 | 1894 | pt (i386_operand_type t) |
252b5132 | 1895 | { |
40fb9820 | 1896 | unsigned int j; |
c6fb90c8 | 1897 | i386_operand_type a; |
252b5132 | 1898 | |
40fb9820 | 1899 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
1900 | { |
1901 | a = operand_type_and (t, type_names[j].mask); | |
1902 | if (!UINTS_ALL_ZERO (a)) | |
1903 | fprintf (stdout, "%s, ", type_names[j].name); | |
1904 | } | |
252b5132 RH |
1905 | fflush (stdout); |
1906 | } | |
1907 | ||
1908 | #endif /* DEBUG386 */ | |
1909 | \f | |
252b5132 | 1910 | static bfd_reloc_code_real_type |
3956db08 | 1911 | reloc (unsigned int size, |
64e74474 AM |
1912 | int pcrel, |
1913 | int sign, | |
1914 | bfd_reloc_code_real_type other) | |
252b5132 | 1915 | { |
47926f60 | 1916 | if (other != NO_RELOC) |
3956db08 JB |
1917 | { |
1918 | reloc_howto_type *reloc; | |
1919 | ||
1920 | if (size == 8) | |
1921 | switch (other) | |
1922 | { | |
64e74474 AM |
1923 | case BFD_RELOC_X86_64_GOT32: |
1924 | return BFD_RELOC_X86_64_GOT64; | |
1925 | break; | |
1926 | case BFD_RELOC_X86_64_PLTOFF64: | |
1927 | return BFD_RELOC_X86_64_PLTOFF64; | |
1928 | break; | |
1929 | case BFD_RELOC_X86_64_GOTPC32: | |
1930 | other = BFD_RELOC_X86_64_GOTPC64; | |
1931 | break; | |
1932 | case BFD_RELOC_X86_64_GOTPCREL: | |
1933 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
1934 | break; | |
1935 | case BFD_RELOC_X86_64_TPOFF32: | |
1936 | other = BFD_RELOC_X86_64_TPOFF64; | |
1937 | break; | |
1938 | case BFD_RELOC_X86_64_DTPOFF32: | |
1939 | other = BFD_RELOC_X86_64_DTPOFF64; | |
1940 | break; | |
1941 | default: | |
1942 | break; | |
3956db08 | 1943 | } |
e05278af JB |
1944 | |
1945 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ | |
1946 | if (size == 4 && flag_code != CODE_64BIT) | |
1947 | sign = -1; | |
1948 | ||
3956db08 JB |
1949 | reloc = bfd_reloc_type_lookup (stdoutput, other); |
1950 | if (!reloc) | |
1951 | as_bad (_("unknown relocation (%u)"), other); | |
1952 | else if (size != bfd_get_reloc_size (reloc)) | |
1953 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), | |
1954 | bfd_get_reloc_size (reloc), | |
1955 | size); | |
1956 | else if (pcrel && !reloc->pc_relative) | |
1957 | as_bad (_("non-pc-relative relocation for pc-relative field")); | |
1958 | else if ((reloc->complain_on_overflow == complain_overflow_signed | |
1959 | && !sign) | |
1960 | || (reloc->complain_on_overflow == complain_overflow_unsigned | |
64e74474 | 1961 | && sign > 0)) |
3956db08 JB |
1962 | as_bad (_("relocated field and relocation type differ in signedness")); |
1963 | else | |
1964 | return other; | |
1965 | return NO_RELOC; | |
1966 | } | |
252b5132 RH |
1967 | |
1968 | if (pcrel) | |
1969 | { | |
3e73aa7c | 1970 | if (!sign) |
3956db08 | 1971 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
1972 | switch (size) |
1973 | { | |
1974 | case 1: return BFD_RELOC_8_PCREL; | |
1975 | case 2: return BFD_RELOC_16_PCREL; | |
1976 | case 4: return BFD_RELOC_32_PCREL; | |
d6ab8113 | 1977 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 1978 | } |
3956db08 | 1979 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
1980 | } |
1981 | else | |
1982 | { | |
3956db08 | 1983 | if (sign > 0) |
e5cb08ac | 1984 | switch (size) |
3e73aa7c JH |
1985 | { |
1986 | case 4: return BFD_RELOC_X86_64_32S; | |
1987 | } | |
1988 | else | |
1989 | switch (size) | |
1990 | { | |
1991 | case 1: return BFD_RELOC_8; | |
1992 | case 2: return BFD_RELOC_16; | |
1993 | case 4: return BFD_RELOC_32; | |
1994 | case 8: return BFD_RELOC_64; | |
1995 | } | |
3956db08 JB |
1996 | as_bad (_("cannot do %s %u byte relocation"), |
1997 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
1998 | } |
1999 | ||
bfb32b52 | 2000 | abort (); |
252b5132 RH |
2001 | return BFD_RELOC_NONE; |
2002 | } | |
2003 | ||
47926f60 KH |
2004 | /* Here we decide which fixups can be adjusted to make them relative to |
2005 | the beginning of the section instead of the symbol. Basically we need | |
2006 | to make sure that the dynamic relocations are done correctly, so in | |
2007 | some cases we force the original symbol to be used. */ | |
2008 | ||
252b5132 | 2009 | int |
e3bb37b5 | 2010 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 2011 | { |
6d249963 | 2012 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 2013 | if (!IS_ELF) |
31312f95 AM |
2014 | return 1; |
2015 | ||
a161fe53 AM |
2016 | /* Don't adjust pc-relative references to merge sections in 64-bit |
2017 | mode. */ | |
2018 | if (use_rela_relocations | |
2019 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
2020 | && fixP->fx_pcrel) | |
252b5132 | 2021 | return 0; |
31312f95 | 2022 | |
8d01d9a9 AJ |
2023 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
2024 | and changed later by validate_fix. */ | |
2025 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
2026 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
2027 | return 0; | |
2028 | ||
ce8a8b2f | 2029 | /* adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
2030 | if (fixP->fx_r_type == BFD_RELOC_386_GOTOFF |
2031 | || fixP->fx_r_type == BFD_RELOC_386_PLT32 | |
2032 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 | |
13ae64f3 JJ |
2033 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
2034 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
2035 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
2036 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
2037 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
2038 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
2039 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
2040 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
2041 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
2042 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c JH |
2043 | || fixP->fx_r_type == BFD_RELOC_X86_64_PLT32 |
2044 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 | |
80b3ee89 | 2045 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
bffbf940 JJ |
2046 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
2047 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
2048 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 2049 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
2050 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
2051 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
2052 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
2053 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
2054 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
2055 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
2056 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
2057 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2058 | return 0; | |
31312f95 | 2059 | #endif |
252b5132 RH |
2060 | return 1; |
2061 | } | |
252b5132 | 2062 | |
b4cac588 | 2063 | static int |
e3bb37b5 | 2064 | intel_float_operand (const char *mnemonic) |
252b5132 | 2065 | { |
9306ca4a JB |
2066 | /* Note that the value returned is meaningful only for opcodes with (memory) |
2067 | operands, hence the code here is free to improperly handle opcodes that | |
2068 | have no operands (for better performance and smaller code). */ | |
2069 | ||
2070 | if (mnemonic[0] != 'f') | |
2071 | return 0; /* non-math */ | |
2072 | ||
2073 | switch (mnemonic[1]) | |
2074 | { | |
2075 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
2076 | the fs segment override prefix not currently handled because no | |
2077 | call path can make opcodes without operands get here */ | |
2078 | case 'i': | |
2079 | return 2 /* integer op */; | |
2080 | case 'l': | |
2081 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
2082 | return 3; /* fldcw/fldenv */ | |
2083 | break; | |
2084 | case 'n': | |
2085 | if (mnemonic[2] != 'o' /* fnop */) | |
2086 | return 3; /* non-waiting control op */ | |
2087 | break; | |
2088 | case 'r': | |
2089 | if (mnemonic[2] == 's') | |
2090 | return 3; /* frstor/frstpm */ | |
2091 | break; | |
2092 | case 's': | |
2093 | if (mnemonic[2] == 'a') | |
2094 | return 3; /* fsave */ | |
2095 | if (mnemonic[2] == 't') | |
2096 | { | |
2097 | switch (mnemonic[3]) | |
2098 | { | |
2099 | case 'c': /* fstcw */ | |
2100 | case 'd': /* fstdw */ | |
2101 | case 'e': /* fstenv */ | |
2102 | case 's': /* fsts[gw] */ | |
2103 | return 3; | |
2104 | } | |
2105 | } | |
2106 | break; | |
2107 | case 'x': | |
2108 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
2109 | return 0; /* fxsave/fxrstor are not really math ops */ | |
2110 | break; | |
2111 | } | |
252b5132 | 2112 | |
9306ca4a | 2113 | return 1; |
252b5132 RH |
2114 | } |
2115 | ||
2116 | /* This is the guts of the machine-dependent assembler. LINE points to a | |
2117 | machine dependent instruction. This function is supposed to emit | |
2118 | the frags/bytes it assembles to. */ | |
2119 | ||
2120 | void | |
2121 | md_assemble (line) | |
2122 | char *line; | |
2123 | { | |
40fb9820 | 2124 | unsigned int j; |
252b5132 RH |
2125 | char mnemonic[MAX_MNEM_SIZE]; |
2126 | ||
47926f60 | 2127 | /* Initialize globals. */ |
252b5132 RH |
2128 | memset (&i, '\0', sizeof (i)); |
2129 | for (j = 0; j < MAX_OPERANDS; j++) | |
1ae12ab7 | 2130 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
2131 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
2132 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 2133 | save_stack_p = save_stack; |
252b5132 RH |
2134 | |
2135 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
2136 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 2137 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 2138 | |
29b0f896 AM |
2139 | line = parse_insn (line, mnemonic); |
2140 | if (line == NULL) | |
2141 | return; | |
252b5132 | 2142 | |
29b0f896 AM |
2143 | line = parse_operands (line, mnemonic); |
2144 | if (line == NULL) | |
2145 | return; | |
252b5132 | 2146 | |
29b0f896 AM |
2147 | /* Now we've parsed the mnemonic into a set of templates, and have the |
2148 | operands at hand. */ | |
2149 | ||
2150 | /* All intel opcodes have reversed operands except for "bound" and | |
2151 | "enter". We also don't reverse intersegment "jmp" and "call" | |
2152 | instructions with 2 immediate operands so that the immediate segment | |
050dfa73 | 2153 | precedes the offset, as it does when in AT&T mode. */ |
4d456e3d L |
2154 | if (intel_syntax |
2155 | && i.operands > 1 | |
29b0f896 | 2156 | && (strcmp (mnemonic, "bound") != 0) |
30123838 | 2157 | && (strcmp (mnemonic, "invlpga") != 0) |
40fb9820 L |
2158 | && !(operand_type_check (i.types[0], imm) |
2159 | && operand_type_check (i.types[1], imm))) | |
29b0f896 AM |
2160 | swap_operands (); |
2161 | ||
ec56d5c0 JB |
2162 | /* The order of the immediates should be reversed |
2163 | for 2 immediates extrq and insertq instructions */ | |
2164 | if (i.imm_operands == 2 | |
2165 | && (strcmp (mnemonic, "extrq") == 0 | |
2166 | || strcmp (mnemonic, "insertq") == 0)) | |
2167 | swap_2_operands (0, 1); | |
2168 | ||
29b0f896 AM |
2169 | if (i.imm_operands) |
2170 | optimize_imm (); | |
2171 | ||
b300c311 L |
2172 | /* Don't optimize displacement for movabs since it only takes 64bit |
2173 | displacement. */ | |
2174 | if (i.disp_operands | |
2175 | && (flag_code != CODE_64BIT | |
2176 | || strcmp (mnemonic, "movabs") != 0)) | |
29b0f896 AM |
2177 | optimize_disp (); |
2178 | ||
2179 | /* Next, we find a template that matches the given insn, | |
2180 | making sure the overlap of the given operands types is consistent | |
2181 | with the template operand types. */ | |
252b5132 | 2182 | |
29b0f896 AM |
2183 | if (!match_template ()) |
2184 | return; | |
252b5132 | 2185 | |
cd61ebfe AM |
2186 | if (intel_syntax) |
2187 | { | |
2188 | /* Undo SYSV386_COMPAT brokenness when in Intel mode. See i386.h */ | |
2189 | if (SYSV386_COMPAT | |
2190 | && (i.tm.base_opcode & 0xfffffde0) == 0xdce0) | |
8a2ed489 | 2191 | i.tm.base_opcode ^= Opcode_FloatR; |
cd61ebfe AM |
2192 | |
2193 | /* Zap movzx and movsx suffix. The suffix may have been set from | |
2194 | "word ptr" or "byte ptr" on the source operand, but we'll use | |
2195 | the suffix later to choose the destination register. */ | |
2196 | if ((i.tm.base_opcode & ~9) == 0x0fb6) | |
9306ca4a JB |
2197 | { |
2198 | if (i.reg_operands < 2 | |
2199 | && !i.suffix | |
40fb9820 L |
2200 | && (!i.tm.opcode_modifier.no_bsuf |
2201 | || !i.tm.opcode_modifier.no_wsuf | |
2202 | || !i.tm.opcode_modifier.no_lsuf | |
2203 | || !i.tm.opcode_modifier.no_ssuf | |
2204 | || !i.tm.opcode_modifier.no_xsuf | |
2205 | || !i.tm.opcode_modifier.no_qsuf)) | |
9306ca4a JB |
2206 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); |
2207 | ||
2208 | i.suffix = 0; | |
2209 | } | |
cd61ebfe | 2210 | } |
24eab124 | 2211 | |
40fb9820 | 2212 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
2213 | if (!add_prefix (FWAIT_OPCODE)) |
2214 | return; | |
252b5132 | 2215 | |
29b0f896 | 2216 | /* Check string instruction segment overrides. */ |
40fb9820 | 2217 | if (i.tm.opcode_modifier.isstring && i.mem_operands != 0) |
29b0f896 AM |
2218 | { |
2219 | if (!check_string ()) | |
5dd0794d | 2220 | return; |
29b0f896 | 2221 | } |
5dd0794d | 2222 | |
29b0f896 AM |
2223 | if (!process_suffix ()) |
2224 | return; | |
e413e4e9 | 2225 | |
29b0f896 AM |
2226 | /* Make still unresolved immediate matches conform to size of immediate |
2227 | given in i.suffix. */ | |
2228 | if (!finalize_imm ()) | |
2229 | return; | |
252b5132 | 2230 | |
40fb9820 | 2231 | if (i.types[0].bitfield.imm1) |
29b0f896 | 2232 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 2233 | |
40fb9820 | 2234 | for (j = 0; j < 3; j++) |
c6fb90c8 L |
2235 | if (i.types[j].bitfield.inoutportreg |
2236 | || i.types[j].bitfield.shiftcount | |
2237 | || i.types[j].bitfield.acc | |
2238 | || i.types[j].bitfield.floatacc) | |
40fb9820 L |
2239 | i.reg_operands--; |
2240 | ||
2241 | if (i.tm.opcode_modifier.immext) | |
29b0f896 | 2242 | { |
02fc3089 L |
2243 | expressionS *exp; |
2244 | ||
40fb9820 | 2245 | if (i.tm.cpu_flags.bitfield.cpusse3 && i.operands > 0) |
ca164297 | 2246 | { |
b7d9ef37 | 2247 | /* Streaming SIMD extensions 3 Instructions have the fixed |
ca164297 L |
2248 | operands with an opcode suffix which is coded in the same |
2249 | place as an 8-bit immediate field would be. Here we check | |
2250 | those operands and remove them afterwards. */ | |
2251 | unsigned int x; | |
2252 | ||
a4622f40 | 2253 | for (x = 0; x < i.operands; x++) |
ca164297 | 2254 | if (i.op[x].regs->reg_num != x) |
a540244d L |
2255 | as_bad (_("can't use register '%s%s' as operand %d in '%s'."), |
2256 | register_prefix, | |
2257 | i.op[x].regs->reg_name, | |
2258 | x + 1, | |
2259 | i.tm.name); | |
ca164297 L |
2260 | i.operands = 0; |
2261 | } | |
2262 | ||
29b0f896 AM |
2263 | /* These AMD 3DNow! and Intel Katmai New Instructions have an |
2264 | opcode suffix which is coded in the same place as an 8-bit | |
2265 | immediate field would be. Here we fake an 8-bit immediate | |
85f10a01 MM |
2266 | operand from the opcode suffix stored in tm.extension_opcode. |
2267 | SSE5 also uses this encoding, for some of its 3 argument | |
2268 | instructions. */ | |
252b5132 | 2269 | |
85f10a01 MM |
2270 | assert (i.imm_operands == 0 |
2271 | && (i.operands <= 2 | |
2272 | || (i.tm.cpu_flags.bitfield.cpusse5 | |
2273 | && i.operands <= 3))); | |
252b5132 | 2274 | |
29b0f896 AM |
2275 | exp = &im_expressions[i.imm_operands++]; |
2276 | i.op[i.operands].imms = exp; | |
c6fb90c8 | 2277 | UINTS_CLEAR (i.types[i.operands]); |
40fb9820 L |
2278 | i.types[i.operands].bitfield.imm8 = 1; |
2279 | i.operands++; | |
29b0f896 AM |
2280 | exp->X_op = O_constant; |
2281 | exp->X_add_number = i.tm.extension_opcode; | |
2282 | i.tm.extension_opcode = None; | |
2283 | } | |
252b5132 | 2284 | |
29b0f896 AM |
2285 | /* For insns with operands there are more diddles to do to the opcode. */ |
2286 | if (i.operands) | |
2287 | { | |
2288 | if (!process_operands ()) | |
2289 | return; | |
2290 | } | |
40fb9820 | 2291 | else if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 AM |
2292 | { |
2293 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
2294 | as_warn (_("translating to `%sp'"), i.tm.name); | |
2295 | } | |
252b5132 | 2296 | |
29b0f896 AM |
2297 | /* Handle conversion of 'int $3' --> special int3 insn. */ |
2298 | if (i.tm.base_opcode == INT_OPCODE && i.op[0].imms->X_add_number == 3) | |
2299 | { | |
2300 | i.tm.base_opcode = INT3_OPCODE; | |
2301 | i.imm_operands = 0; | |
2302 | } | |
252b5132 | 2303 | |
40fb9820 L |
2304 | if ((i.tm.opcode_modifier.jump |
2305 | || i.tm.opcode_modifier.jumpbyte | |
2306 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 AM |
2307 | && i.op[0].disps->X_op == O_constant) |
2308 | { | |
2309 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
2310 | the absolute address given by the constant. Since ix86 jumps and | |
2311 | calls are pc relative, we need to generate a reloc. */ | |
2312 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
2313 | i.op[0].disps->X_op = O_symbol; | |
2314 | } | |
252b5132 | 2315 | |
40fb9820 | 2316 | if (i.tm.opcode_modifier.rex64) |
161a04f6 | 2317 | i.rex |= REX_W; |
252b5132 | 2318 | |
29b0f896 AM |
2319 | /* For 8 bit registers we need an empty rex prefix. Also if the |
2320 | instruction already has a prefix, we need to convert old | |
2321 | registers to new ones. */ | |
773f551c | 2322 | |
40fb9820 | 2323 | if ((i.types[0].bitfield.reg8 |
29b0f896 | 2324 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
40fb9820 | 2325 | || (i.types[1].bitfield.reg8 |
29b0f896 | 2326 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
40fb9820 L |
2327 | || ((i.types[0].bitfield.reg8 |
2328 | || i.types[1].bitfield.reg8) | |
29b0f896 AM |
2329 | && i.rex != 0)) |
2330 | { | |
2331 | int x; | |
726c5dcd | 2332 | |
29b0f896 AM |
2333 | i.rex |= REX_OPCODE; |
2334 | for (x = 0; x < 2; x++) | |
2335 | { | |
2336 | /* Look for 8 bit operand that uses old registers. */ | |
40fb9820 | 2337 | if (i.types[x].bitfield.reg8 |
29b0f896 | 2338 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 2339 | { |
29b0f896 AM |
2340 | /* In case it is "hi" register, give up. */ |
2341 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 2342 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 2343 | "instruction requiring REX prefix."), |
a540244d | 2344 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 2345 | |
29b0f896 AM |
2346 | /* Otherwise it is equivalent to the extended register. |
2347 | Since the encoding doesn't change this is merely | |
2348 | cosmetic cleanup for debug output. */ | |
2349 | ||
2350 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 2351 | } |
29b0f896 AM |
2352 | } |
2353 | } | |
773f551c | 2354 | |
85f10a01 MM |
2355 | /* If the instruction has the DREX attribute (aka SSE5), don't emit a |
2356 | REX prefix. */ | |
2357 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
2358 | { | |
2359 | i.drex.rex = i.rex; | |
2360 | i.rex = 0; | |
2361 | } | |
2362 | else if (i.rex != 0) | |
29b0f896 AM |
2363 | add_prefix (REX_OPCODE | i.rex); |
2364 | ||
2365 | /* We are ready to output the insn. */ | |
2366 | output_insn (); | |
2367 | } | |
2368 | ||
2369 | static char * | |
e3bb37b5 | 2370 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
2371 | { |
2372 | char *l = line; | |
2373 | char *token_start = l; | |
2374 | char *mnem_p; | |
5c6af06e JB |
2375 | int supported; |
2376 | const template *t; | |
29b0f896 AM |
2377 | |
2378 | /* Non-zero if we found a prefix only acceptable with string insns. */ | |
2379 | const char *expecting_string_instruction = NULL; | |
45288df1 | 2380 | |
29b0f896 AM |
2381 | while (1) |
2382 | { | |
2383 | mnem_p = mnemonic; | |
2384 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
2385 | { | |
2386 | mnem_p++; | |
2387 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 2388 | { |
29b0f896 AM |
2389 | as_bad (_("no such instruction: `%s'"), token_start); |
2390 | return NULL; | |
2391 | } | |
2392 | l++; | |
2393 | } | |
2394 | if (!is_space_char (*l) | |
2395 | && *l != END_OF_INSN | |
e44823cf JB |
2396 | && (intel_syntax |
2397 | || (*l != PREFIX_SEPARATOR | |
2398 | && *l != ','))) | |
29b0f896 AM |
2399 | { |
2400 | as_bad (_("invalid character %s in mnemonic"), | |
2401 | output_invalid (*l)); | |
2402 | return NULL; | |
2403 | } | |
2404 | if (token_start == l) | |
2405 | { | |
e44823cf | 2406 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
2407 | as_bad (_("expecting prefix; got nothing")); |
2408 | else | |
2409 | as_bad (_("expecting mnemonic; got nothing")); | |
2410 | return NULL; | |
2411 | } | |
45288df1 | 2412 | |
29b0f896 AM |
2413 | /* Look up instruction (or prefix) via hash table. */ |
2414 | current_templates = hash_find (op_hash, mnemonic); | |
47926f60 | 2415 | |
29b0f896 AM |
2416 | if (*l != END_OF_INSN |
2417 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
2418 | && current_templates | |
40fb9820 | 2419 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 2420 | { |
c6fb90c8 | 2421 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
2422 | { |
2423 | as_bad ((flag_code != CODE_64BIT | |
2424 | ? _("`%s' is only supported in 64-bit mode") | |
2425 | : _("`%s' is not supported in 64-bit mode")), | |
2426 | current_templates->start->name); | |
2427 | return NULL; | |
2428 | } | |
29b0f896 AM |
2429 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
2430 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
40fb9820 L |
2431 | if ((current_templates->start->opcode_modifier.size16 |
2432 | || current_templates->start->opcode_modifier.size32) | |
29b0f896 | 2433 | && flag_code != CODE_64BIT |
40fb9820 | 2434 | && (current_templates->start->opcode_modifier.size32 |
29b0f896 AM |
2435 | ^ (flag_code == CODE_16BIT))) |
2436 | { | |
2437 | as_bad (_("redundant %s prefix"), | |
2438 | current_templates->start->name); | |
2439 | return NULL; | |
45288df1 | 2440 | } |
29b0f896 AM |
2441 | /* Add prefix, checking for repeated prefixes. */ |
2442 | switch (add_prefix (current_templates->start->base_opcode)) | |
2443 | { | |
2444 | case 0: | |
2445 | return NULL; | |
2446 | case 2: | |
2447 | expecting_string_instruction = current_templates->start->name; | |
2448 | break; | |
2449 | } | |
2450 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
2451 | token_start = ++l; | |
2452 | } | |
2453 | else | |
2454 | break; | |
2455 | } | |
45288df1 | 2456 | |
29b0f896 AM |
2457 | if (!current_templates) |
2458 | { | |
2459 | /* See if we can get a match by trimming off a suffix. */ | |
2460 | switch (mnem_p[-1]) | |
2461 | { | |
2462 | case WORD_MNEM_SUFFIX: | |
9306ca4a JB |
2463 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) |
2464 | i.suffix = SHORT_MNEM_SUFFIX; | |
2465 | else | |
29b0f896 AM |
2466 | case BYTE_MNEM_SUFFIX: |
2467 | case QWORD_MNEM_SUFFIX: | |
2468 | i.suffix = mnem_p[-1]; | |
2469 | mnem_p[-1] = '\0'; | |
2470 | current_templates = hash_find (op_hash, mnemonic); | |
2471 | break; | |
2472 | case SHORT_MNEM_SUFFIX: | |
2473 | case LONG_MNEM_SUFFIX: | |
2474 | if (!intel_syntax) | |
2475 | { | |
2476 | i.suffix = mnem_p[-1]; | |
2477 | mnem_p[-1] = '\0'; | |
2478 | current_templates = hash_find (op_hash, mnemonic); | |
2479 | } | |
2480 | break; | |
252b5132 | 2481 | |
29b0f896 AM |
2482 | /* Intel Syntax. */ |
2483 | case 'd': | |
2484 | if (intel_syntax) | |
2485 | { | |
9306ca4a | 2486 | if (intel_float_operand (mnemonic) == 1) |
29b0f896 AM |
2487 | i.suffix = SHORT_MNEM_SUFFIX; |
2488 | else | |
2489 | i.suffix = LONG_MNEM_SUFFIX; | |
2490 | mnem_p[-1] = '\0'; | |
2491 | current_templates = hash_find (op_hash, mnemonic); | |
2492 | } | |
2493 | break; | |
2494 | } | |
2495 | if (!current_templates) | |
2496 | { | |
2497 | as_bad (_("no such instruction: `%s'"), token_start); | |
2498 | return NULL; | |
2499 | } | |
2500 | } | |
252b5132 | 2501 | |
40fb9820 L |
2502 | if (current_templates->start->opcode_modifier.jump |
2503 | || current_templates->start->opcode_modifier.jumpbyte) | |
29b0f896 AM |
2504 | { |
2505 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
2506 | predict taken and predict not taken respectively. | |
2507 | I'm not sure that branch hints actually do anything on loop | |
2508 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
2509 | may work in the future and it doesn't hurt to accept them | |
2510 | now. */ | |
2511 | if (l[0] == ',' && l[1] == 'p') | |
2512 | { | |
2513 | if (l[2] == 't') | |
2514 | { | |
2515 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
2516 | return NULL; | |
2517 | l += 3; | |
2518 | } | |
2519 | else if (l[2] == 'n') | |
2520 | { | |
2521 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
2522 | return NULL; | |
2523 | l += 3; | |
2524 | } | |
2525 | } | |
2526 | } | |
2527 | /* Any other comma loses. */ | |
2528 | if (*l == ',') | |
2529 | { | |
2530 | as_bad (_("invalid character %s in mnemonic"), | |
2531 | output_invalid (*l)); | |
2532 | return NULL; | |
2533 | } | |
252b5132 | 2534 | |
29b0f896 | 2535 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
2536 | supported = 0; |
2537 | for (t = current_templates->start; t < current_templates->end; ++t) | |
2538 | { | |
40fb9820 | 2539 | if (cpu_flags_match (t->cpu_flags)) |
64e74474 | 2540 | supported |= 1; |
c6fb90c8 | 2541 | if (cpu_flags_check_cpu64 (t->cpu_flags)) |
64e74474 | 2542 | supported |= 2; |
5c6af06e JB |
2543 | } |
2544 | if (!(supported & 2)) | |
2545 | { | |
2546 | as_bad (flag_code == CODE_64BIT | |
2547 | ? _("`%s' is not supported in 64-bit mode") | |
2548 | : _("`%s' is only supported in 64-bit mode"), | |
2549 | current_templates->start->name); | |
2550 | return NULL; | |
2551 | } | |
2552 | if (!(supported & 1)) | |
29b0f896 | 2553 | { |
5c6af06e JB |
2554 | as_warn (_("`%s' is not supported on `%s%s'"), |
2555 | current_templates->start->name, | |
2556 | cpu_arch_name, | |
2557 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); | |
29b0f896 | 2558 | } |
40fb9820 L |
2559 | else if (!cpu_arch_flags.bitfield.cpui386 |
2560 | && (flag_code != CODE_16BIT)) | |
29b0f896 AM |
2561 | { |
2562 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
2563 | } | |
252b5132 | 2564 | |
29b0f896 | 2565 | /* Check for rep/repne without a string instruction. */ |
f41bbced | 2566 | if (expecting_string_instruction) |
29b0f896 | 2567 | { |
f41bbced JB |
2568 | static templates override; |
2569 | ||
2570 | for (t = current_templates->start; t < current_templates->end; ++t) | |
40fb9820 | 2571 | if (t->opcode_modifier.isstring) |
f41bbced JB |
2572 | break; |
2573 | if (t >= current_templates->end) | |
2574 | { | |
2575 | as_bad (_("expecting string instruction after `%s'"), | |
64e74474 | 2576 | expecting_string_instruction); |
f41bbced JB |
2577 | return NULL; |
2578 | } | |
2579 | for (override.start = t; t < current_templates->end; ++t) | |
40fb9820 | 2580 | if (!t->opcode_modifier.isstring) |
f41bbced JB |
2581 | break; |
2582 | override.end = t; | |
2583 | current_templates = &override; | |
29b0f896 | 2584 | } |
252b5132 | 2585 | |
29b0f896 AM |
2586 | return l; |
2587 | } | |
252b5132 | 2588 | |
29b0f896 | 2589 | static char * |
e3bb37b5 | 2590 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
2591 | { |
2592 | char *token_start; | |
3138f287 | 2593 | |
29b0f896 AM |
2594 | /* 1 if operand is pending after ','. */ |
2595 | unsigned int expecting_operand = 0; | |
252b5132 | 2596 | |
29b0f896 AM |
2597 | /* Non-zero if operand parens not balanced. */ |
2598 | unsigned int paren_not_balanced; | |
2599 | ||
2600 | while (*l != END_OF_INSN) | |
2601 | { | |
2602 | /* Skip optional white space before operand. */ | |
2603 | if (is_space_char (*l)) | |
2604 | ++l; | |
2605 | if (!is_operand_char (*l) && *l != END_OF_INSN) | |
2606 | { | |
2607 | as_bad (_("invalid character %s before operand %d"), | |
2608 | output_invalid (*l), | |
2609 | i.operands + 1); | |
2610 | return NULL; | |
2611 | } | |
2612 | token_start = l; /* after white space */ | |
2613 | paren_not_balanced = 0; | |
2614 | while (paren_not_balanced || *l != ',') | |
2615 | { | |
2616 | if (*l == END_OF_INSN) | |
2617 | { | |
2618 | if (paren_not_balanced) | |
2619 | { | |
2620 | if (!intel_syntax) | |
2621 | as_bad (_("unbalanced parenthesis in operand %d."), | |
2622 | i.operands + 1); | |
2623 | else | |
2624 | as_bad (_("unbalanced brackets in operand %d."), | |
2625 | i.operands + 1); | |
2626 | return NULL; | |
2627 | } | |
2628 | else | |
2629 | break; /* we are done */ | |
2630 | } | |
2631 | else if (!is_operand_char (*l) && !is_space_char (*l)) | |
2632 | { | |
2633 | as_bad (_("invalid character %s in operand %d"), | |
2634 | output_invalid (*l), | |
2635 | i.operands + 1); | |
2636 | return NULL; | |
2637 | } | |
2638 | if (!intel_syntax) | |
2639 | { | |
2640 | if (*l == '(') | |
2641 | ++paren_not_balanced; | |
2642 | if (*l == ')') | |
2643 | --paren_not_balanced; | |
2644 | } | |
2645 | else | |
2646 | { | |
2647 | if (*l == '[') | |
2648 | ++paren_not_balanced; | |
2649 | if (*l == ']') | |
2650 | --paren_not_balanced; | |
2651 | } | |
2652 | l++; | |
2653 | } | |
2654 | if (l != token_start) | |
2655 | { /* Yes, we've read in another operand. */ | |
2656 | unsigned int operand_ok; | |
2657 | this_operand = i.operands++; | |
2658 | if (i.operands > MAX_OPERANDS) | |
2659 | { | |
2660 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
2661 | MAX_OPERANDS); | |
2662 | return NULL; | |
2663 | } | |
2664 | /* Now parse operand adding info to 'i' as we go along. */ | |
2665 | END_STRING_AND_SAVE (l); | |
2666 | ||
2667 | if (intel_syntax) | |
2668 | operand_ok = | |
2669 | i386_intel_operand (token_start, | |
2670 | intel_float_operand (mnemonic)); | |
2671 | else | |
2672 | operand_ok = i386_operand (token_start); | |
2673 | ||
2674 | RESTORE_END_STRING (l); | |
2675 | if (!operand_ok) | |
2676 | return NULL; | |
2677 | } | |
2678 | else | |
2679 | { | |
2680 | if (expecting_operand) | |
2681 | { | |
2682 | expecting_operand_after_comma: | |
2683 | as_bad (_("expecting operand after ','; got nothing")); | |
2684 | return NULL; | |
2685 | } | |
2686 | if (*l == ',') | |
2687 | { | |
2688 | as_bad (_("expecting operand before ','; got nothing")); | |
2689 | return NULL; | |
2690 | } | |
2691 | } | |
7f3f1ea2 | 2692 | |
29b0f896 AM |
2693 | /* Now *l must be either ',' or END_OF_INSN. */ |
2694 | if (*l == ',') | |
2695 | { | |
2696 | if (*++l == END_OF_INSN) | |
2697 | { | |
2698 | /* Just skip it, if it's \n complain. */ | |
2699 | goto expecting_operand_after_comma; | |
2700 | } | |
2701 | expecting_operand = 1; | |
2702 | } | |
2703 | } | |
2704 | return l; | |
2705 | } | |
7f3f1ea2 | 2706 | |
050dfa73 | 2707 | static void |
4d456e3d | 2708 | swap_2_operands (int xchg1, int xchg2) |
050dfa73 MM |
2709 | { |
2710 | union i386_op temp_op; | |
40fb9820 | 2711 | i386_operand_type temp_type; |
050dfa73 | 2712 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 2713 | |
050dfa73 MM |
2714 | temp_type = i.types[xchg2]; |
2715 | i.types[xchg2] = i.types[xchg1]; | |
2716 | i.types[xchg1] = temp_type; | |
2717 | temp_op = i.op[xchg2]; | |
2718 | i.op[xchg2] = i.op[xchg1]; | |
2719 | i.op[xchg1] = temp_op; | |
2720 | temp_reloc = i.reloc[xchg2]; | |
2721 | i.reloc[xchg2] = i.reloc[xchg1]; | |
2722 | i.reloc[xchg1] = temp_reloc; | |
2723 | } | |
2724 | ||
29b0f896 | 2725 | static void |
e3bb37b5 | 2726 | swap_operands (void) |
29b0f896 | 2727 | { |
b7c61d9a | 2728 | switch (i.operands) |
050dfa73 | 2729 | { |
b7c61d9a | 2730 | case 4: |
4d456e3d | 2731 | swap_2_operands (1, i.operands - 2); |
b7c61d9a L |
2732 | case 3: |
2733 | case 2: | |
4d456e3d | 2734 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
2735 | break; |
2736 | default: | |
2737 | abort (); | |
29b0f896 | 2738 | } |
29b0f896 AM |
2739 | |
2740 | if (i.mem_operands == 2) | |
2741 | { | |
2742 | const seg_entry *temp_seg; | |
2743 | temp_seg = i.seg[0]; | |
2744 | i.seg[0] = i.seg[1]; | |
2745 | i.seg[1] = temp_seg; | |
2746 | } | |
2747 | } | |
252b5132 | 2748 | |
29b0f896 AM |
2749 | /* Try to ensure constant immediates are represented in the smallest |
2750 | opcode possible. */ | |
2751 | static void | |
e3bb37b5 | 2752 | optimize_imm (void) |
29b0f896 AM |
2753 | { |
2754 | char guess_suffix = 0; | |
2755 | int op; | |
252b5132 | 2756 | |
29b0f896 AM |
2757 | if (i.suffix) |
2758 | guess_suffix = i.suffix; | |
2759 | else if (i.reg_operands) | |
2760 | { | |
2761 | /* Figure out a suffix from the last register operand specified. | |
2762 | We can't do this properly yet, ie. excluding InOutPortReg, | |
2763 | but the following works for instructions with immediates. | |
2764 | In any case, we can't set i.suffix yet. */ | |
2765 | for (op = i.operands; --op >= 0;) | |
40fb9820 L |
2766 | if (i.types[op].bitfield.reg8) |
2767 | { | |
2768 | guess_suffix = BYTE_MNEM_SUFFIX; | |
2769 | break; | |
2770 | } | |
2771 | else if (i.types[op].bitfield.reg16) | |
252b5132 | 2772 | { |
40fb9820 L |
2773 | guess_suffix = WORD_MNEM_SUFFIX; |
2774 | break; | |
2775 | } | |
2776 | else if (i.types[op].bitfield.reg32) | |
2777 | { | |
2778 | guess_suffix = LONG_MNEM_SUFFIX; | |
2779 | break; | |
2780 | } | |
2781 | else if (i.types[op].bitfield.reg64) | |
2782 | { | |
2783 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 2784 | break; |
252b5132 | 2785 | } |
29b0f896 AM |
2786 | } |
2787 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
2788 | guess_suffix = WORD_MNEM_SUFFIX; | |
2789 | ||
2790 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 2791 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
2792 | { |
2793 | switch (i.op[op].imms->X_op) | |
252b5132 | 2794 | { |
29b0f896 AM |
2795 | case O_constant: |
2796 | /* If a suffix is given, this operand may be shortened. */ | |
2797 | switch (guess_suffix) | |
252b5132 | 2798 | { |
29b0f896 | 2799 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
2800 | i.types[op].bitfield.imm32 = 1; |
2801 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
2802 | break; |
2803 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
2804 | i.types[op].bitfield.imm16 = 1; |
2805 | i.types[op].bitfield.imm32 = 1; | |
2806 | i.types[op].bitfield.imm32s = 1; | |
2807 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
2808 | break; |
2809 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
2810 | i.types[op].bitfield.imm8 = 1; |
2811 | i.types[op].bitfield.imm8s = 1; | |
2812 | i.types[op].bitfield.imm16 = 1; | |
2813 | i.types[op].bitfield.imm32 = 1; | |
2814 | i.types[op].bitfield.imm32s = 1; | |
2815 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 2816 | break; |
252b5132 | 2817 | } |
252b5132 | 2818 | |
29b0f896 AM |
2819 | /* If this operand is at most 16 bits, convert it |
2820 | to a signed 16 bit number before trying to see | |
2821 | whether it will fit in an even smaller size. | |
2822 | This allows a 16-bit operand such as $0xffe0 to | |
2823 | be recognised as within Imm8S range. */ | |
40fb9820 | 2824 | if ((i.types[op].bitfield.imm16) |
29b0f896 | 2825 | && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0) |
252b5132 | 2826 | { |
29b0f896 AM |
2827 | i.op[op].imms->X_add_number = |
2828 | (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000); | |
2829 | } | |
40fb9820 | 2830 | if ((i.types[op].bitfield.imm32) |
29b0f896 AM |
2831 | && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1)) |
2832 | == 0)) | |
2833 | { | |
2834 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
2835 | ^ ((offsetT) 1 << 31)) | |
2836 | - ((offsetT) 1 << 31)); | |
2837 | } | |
40fb9820 | 2838 | i.types[op] |
c6fb90c8 L |
2839 | = operand_type_or (i.types[op], |
2840 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 2841 | |
29b0f896 AM |
2842 | /* We must avoid matching of Imm32 templates when 64bit |
2843 | only immediate is available. */ | |
2844 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 2845 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 2846 | break; |
252b5132 | 2847 | |
29b0f896 AM |
2848 | case O_absent: |
2849 | case O_register: | |
2850 | abort (); | |
2851 | ||
2852 | /* Symbols and expressions. */ | |
2853 | default: | |
9cd96992 JB |
2854 | /* Convert symbolic operand to proper sizes for matching, but don't |
2855 | prevent matching a set of insns that only supports sizes other | |
2856 | than those matching the insn suffix. */ | |
2857 | { | |
40fb9820 | 2858 | i386_operand_type mask, allowed; |
9cd96992 JB |
2859 | const template *t; |
2860 | ||
c6fb90c8 L |
2861 | UINTS_CLEAR (mask); |
2862 | UINTS_CLEAR (allowed); | |
40fb9820 | 2863 | |
4eed87de AM |
2864 | for (t = current_templates->start; |
2865 | t < current_templates->end; | |
2866 | ++t) | |
c6fb90c8 L |
2867 | allowed = operand_type_or (allowed, |
2868 | t->operand_types[op]); | |
9cd96992 JB |
2869 | switch (guess_suffix) |
2870 | { | |
2871 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
2872 | mask.bitfield.imm64 = 1; |
2873 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
2874 | break; |
2875 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 2876 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
2877 | break; |
2878 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 2879 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
2880 | break; |
2881 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 2882 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
2883 | break; |
2884 | default: | |
9cd96992 JB |
2885 | break; |
2886 | } | |
c6fb90c8 L |
2887 | allowed = operand_type_and (mask, allowed); |
2888 | if (!UINTS_ALL_ZERO (allowed)) | |
2889 | i.types[op] = operand_type_and (i.types[op], mask); | |
9cd96992 | 2890 | } |
29b0f896 | 2891 | break; |
252b5132 | 2892 | } |
29b0f896 AM |
2893 | } |
2894 | } | |
47926f60 | 2895 | |
29b0f896 AM |
2896 | /* Try to use the smallest displacement type too. */ |
2897 | static void | |
e3bb37b5 | 2898 | optimize_disp (void) |
29b0f896 AM |
2899 | { |
2900 | int op; | |
3e73aa7c | 2901 | |
29b0f896 | 2902 | for (op = i.operands; --op >= 0;) |
40fb9820 | 2903 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 2904 | { |
b300c311 | 2905 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 2906 | { |
b300c311 | 2907 | offsetT disp = i.op[op].disps->X_add_number; |
29b0f896 | 2908 | |
40fb9820 | 2909 | if (i.types[op].bitfield.disp16 |
b300c311 L |
2910 | && (disp & ~(offsetT) 0xffff) == 0) |
2911 | { | |
2912 | /* If this operand is at most 16 bits, convert | |
2913 | to a signed 16 bit number and don't use 64bit | |
2914 | displacement. */ | |
2915 | disp = (((disp & 0xffff) ^ 0x8000) - 0x8000); | |
40fb9820 | 2916 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 2917 | } |
40fb9820 | 2918 | if (i.types[op].bitfield.disp32 |
b300c311 L |
2919 | && (disp & ~(((offsetT) 2 << 31) - 1)) == 0) |
2920 | { | |
2921 | /* If this operand is at most 32 bits, convert | |
2922 | to a signed 32 bit number and don't use 64bit | |
2923 | displacement. */ | |
2924 | disp &= (((offsetT) 2 << 31) - 1); | |
2925 | disp = (disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
40fb9820 | 2926 | i.types[op].bitfield.disp64 = 0; |
b300c311 | 2927 | } |
40fb9820 | 2928 | if (!disp && i.types[op].bitfield.baseindex) |
b300c311 | 2929 | { |
40fb9820 L |
2930 | i.types[op].bitfield.disp8 = 0; |
2931 | i.types[op].bitfield.disp16 = 0; | |
2932 | i.types[op].bitfield.disp32 = 0; | |
2933 | i.types[op].bitfield.disp32s = 0; | |
2934 | i.types[op].bitfield.disp64 = 0; | |
b300c311 L |
2935 | i.op[op].disps = 0; |
2936 | i.disp_operands--; | |
2937 | } | |
2938 | else if (flag_code == CODE_64BIT) | |
2939 | { | |
2940 | if (fits_in_signed_long (disp)) | |
28a9d8f5 | 2941 | { |
40fb9820 L |
2942 | i.types[op].bitfield.disp64 = 0; |
2943 | i.types[op].bitfield.disp32s = 1; | |
28a9d8f5 | 2944 | } |
b300c311 | 2945 | if (fits_in_unsigned_long (disp)) |
40fb9820 | 2946 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 2947 | } |
40fb9820 L |
2948 | if ((i.types[op].bitfield.disp32 |
2949 | || i.types[op].bitfield.disp32s | |
2950 | || i.types[op].bitfield.disp16) | |
b300c311 | 2951 | && fits_in_signed_byte (disp)) |
40fb9820 | 2952 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 2953 | } |
67a4f2b7 AO |
2954 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
2955 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
2956 | { | |
2957 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
2958 | i.op[op].disps, 0, i.reloc[op]); | |
40fb9820 L |
2959 | i.types[op].bitfield.disp8 = 0; |
2960 | i.types[op].bitfield.disp16 = 0; | |
2961 | i.types[op].bitfield.disp32 = 0; | |
2962 | i.types[op].bitfield.disp32s = 0; | |
2963 | i.types[op].bitfield.disp64 = 0; | |
67a4f2b7 AO |
2964 | } |
2965 | else | |
b300c311 | 2966 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 2967 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 2968 | } |
29b0f896 AM |
2969 | } |
2970 | ||
2971 | static int | |
e3bb37b5 | 2972 | match_template (void) |
29b0f896 AM |
2973 | { |
2974 | /* Points to template once we've found it. */ | |
2975 | const template *t; | |
40fb9820 | 2976 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
29b0f896 | 2977 | unsigned int found_reverse_match; |
40fb9820 L |
2978 | i386_opcode_modifier suffix_check; |
2979 | i386_operand_type operand_types [MAX_OPERANDS]; | |
539e75ad | 2980 | int addr_prefix_disp; |
a5c311ca | 2981 | unsigned int j; |
c6fb90c8 | 2982 | i386_cpu_flags overlap; |
29b0f896 | 2983 | |
f48ff2ae L |
2984 | #if MAX_OPERANDS != 4 |
2985 | # error "MAX_OPERANDS must be 4." | |
2986 | #endif | |
2987 | ||
29b0f896 | 2988 | found_reverse_match = 0; |
539e75ad | 2989 | addr_prefix_disp = -1; |
40fb9820 L |
2990 | |
2991 | memset (&suffix_check, 0, sizeof (suffix_check)); | |
2992 | if (i.suffix == BYTE_MNEM_SUFFIX) | |
2993 | suffix_check.no_bsuf = 1; | |
2994 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
2995 | suffix_check.no_wsuf = 1; | |
2996 | else if (i.suffix == SHORT_MNEM_SUFFIX) | |
2997 | suffix_check.no_ssuf = 1; | |
2998 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
2999 | suffix_check.no_lsuf = 1; | |
3000 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3001 | suffix_check.no_qsuf = 1; | |
3002 | else if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
3003 | suffix_check.no_xsuf = 1; | |
29b0f896 | 3004 | |
45aa61fe | 3005 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 3006 | { |
539e75ad L |
3007 | addr_prefix_disp = -1; |
3008 | ||
29b0f896 AM |
3009 | /* Must have right number of operands. */ |
3010 | if (i.operands != t->operands) | |
3011 | continue; | |
3012 | ||
20592a94 | 3013 | /* Check the suffix, except for some instructions in intel mode. */ |
40fb9820 L |
3014 | if (((t->opcode_modifier.no_bsuf & suffix_check.no_bsuf) |
3015 | || (t->opcode_modifier.no_wsuf & suffix_check.no_wsuf) | |
3016 | || (t->opcode_modifier.no_lsuf & suffix_check.no_lsuf) | |
3017 | || (t->opcode_modifier.no_ssuf & suffix_check.no_ssuf) | |
3018 | || (t->opcode_modifier.no_qsuf & suffix_check.no_qsuf) | |
3019 | || (t->opcode_modifier.no_xsuf & suffix_check.no_xsuf)) | |
3020 | && !(intel_syntax && t->opcode_modifier.ignoresize)) | |
29b0f896 AM |
3021 | continue; |
3022 | ||
a5c311ca L |
3023 | for (j = 0; j < MAX_OPERANDS; j++) |
3024 | operand_types [j] = t->operand_types [j]; | |
539e75ad | 3025 | |
45aa61fe AM |
3026 | /* In general, don't allow 64-bit operands in 32-bit mode. */ |
3027 | if (i.suffix == QWORD_MNEM_SUFFIX | |
3028 | && flag_code != CODE_64BIT | |
3029 | && (intel_syntax | |
40fb9820 | 3030 | ? (!t->opcode_modifier.ignoresize |
45aa61fe AM |
3031 | && !intel_float_operand (t->name)) |
3032 | : intel_float_operand (t->name) != 2) | |
40fb9820 L |
3033 | && ((!operand_types[0].bitfield.regmmx |
3034 | && !operand_types[0].bitfield.regxmm) | |
3035 | || (!operand_types[t->operands > 1].bitfield.regmmx | |
3036 | && !!operand_types[t->operands > 1].bitfield.regxmm)) | |
45aa61fe AM |
3037 | && (t->base_opcode != 0x0fc7 |
3038 | || t->extension_opcode != 1 /* cmpxchg8b */)) | |
3039 | continue; | |
3040 | ||
29b0f896 | 3041 | /* Do not verify operands when there are none. */ |
c6fb90c8 | 3042 | else |
29b0f896 | 3043 | { |
c6fb90c8 L |
3044 | overlap = cpu_flags_and (t->cpu_flags, cpu_arch_flags_not); |
3045 | if (!t->operands) | |
3046 | { | |
3047 | if (!UINTS_ALL_ZERO (overlap)) | |
3048 | continue; | |
3049 | /* We've found a match; break out of loop. */ | |
3050 | break; | |
3051 | } | |
29b0f896 | 3052 | } |
252b5132 | 3053 | |
539e75ad L |
3054 | /* Address size prefix will turn Disp64/Disp32/Disp16 operand |
3055 | into Disp32/Disp16/Disp32 operand. */ | |
3056 | if (i.prefix[ADDR_PREFIX] != 0) | |
3057 | { | |
40fb9820 | 3058 | /* There should be only one Disp operand. */ |
539e75ad L |
3059 | switch (flag_code) |
3060 | { | |
3061 | case CODE_16BIT: | |
40fb9820 L |
3062 | for (j = 0; j < MAX_OPERANDS; j++) |
3063 | { | |
3064 | if (operand_types[j].bitfield.disp16) | |
3065 | { | |
3066 | addr_prefix_disp = j; | |
3067 | operand_types[j].bitfield.disp32 = 1; | |
3068 | operand_types[j].bitfield.disp16 = 0; | |
3069 | break; | |
3070 | } | |
3071 | } | |
539e75ad L |
3072 | break; |
3073 | case CODE_32BIT: | |
40fb9820 L |
3074 | for (j = 0; j < MAX_OPERANDS; j++) |
3075 | { | |
3076 | if (operand_types[j].bitfield.disp32) | |
3077 | { | |
3078 | addr_prefix_disp = j; | |
3079 | operand_types[j].bitfield.disp32 = 0; | |
3080 | operand_types[j].bitfield.disp16 = 1; | |
3081 | break; | |
3082 | } | |
3083 | } | |
539e75ad L |
3084 | break; |
3085 | case CODE_64BIT: | |
40fb9820 L |
3086 | for (j = 0; j < MAX_OPERANDS; j++) |
3087 | { | |
3088 | if (operand_types[j].bitfield.disp64) | |
3089 | { | |
3090 | addr_prefix_disp = j; | |
3091 | operand_types[j].bitfield.disp64 = 0; | |
3092 | operand_types[j].bitfield.disp32 = 1; | |
3093 | break; | |
3094 | } | |
3095 | } | |
539e75ad L |
3096 | break; |
3097 | } | |
539e75ad L |
3098 | } |
3099 | ||
c6fb90c8 | 3100 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
3101 | switch (t->operands) |
3102 | { | |
3103 | case 1: | |
40fb9820 | 3104 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
3105 | continue; |
3106 | break; | |
3107 | case 2: | |
8b38ad71 L |
3108 | /* xchg %eax, %eax is a special case. It is an aliase for nop |
3109 | only in 32bit mode and we can use opcode 0x90. In 64bit | |
3110 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
3111 | zero-extend %eax to %rax. */ | |
3112 | if (flag_code == CODE_64BIT | |
3113 | && t->base_opcode == 0x90 | |
c6fb90c8 L |
3114 | && UINTS_EQUAL (i.types [0], acc32) |
3115 | && UINTS_EQUAL (i.types [1], acc32)) | |
8b38ad71 | 3116 | continue; |
29b0f896 | 3117 | case 3: |
f48ff2ae | 3118 | case 4: |
c6fb90c8 | 3119 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
3120 | if (!operand_type_match (overlap0, i.types[0]) |
3121 | || !operand_type_match (overlap1, i.types[1]) | |
cb712a9e | 3122 | /* monitor in SSE3 is a very special case. The first |
708587a4 | 3123 | register and the second register may have different |
26186d74 L |
3124 | sizes. The same applies to crc32 in SSE4.2. It is |
3125 | also true for invlpga, vmload, vmrun and vmsave in | |
3126 | SVME. */ | |
cb712a9e | 3127 | || !((t->base_opcode == 0x0f01 |
26186d74 L |
3128 | && (t->extension_opcode == 0xc8 |
3129 | || t->extension_opcode == 0xd8 | |
3130 | || t->extension_opcode == 0xda | |
3131 | || t->extension_opcode == 0xdb | |
3132 | || t->extension_opcode == 0xdf)) | |
381d071f | 3133 | || t->base_opcode == 0xf20f38f1 |
40fb9820 L |
3134 | || operand_type_register_match (overlap0, i.types[0], |
3135 | operand_types[0], | |
3136 | overlap1, i.types[1], | |
3137 | operand_types[1]))) | |
29b0f896 AM |
3138 | { |
3139 | /* Check if other direction is valid ... */ | |
40fb9820 | 3140 | if (!t->opcode_modifier.d && !t->opcode_modifier.floatd) |
29b0f896 AM |
3141 | continue; |
3142 | ||
3143 | /* Try reversing direction of operands. */ | |
c6fb90c8 L |
3144 | overlap0 = operand_type_and (i.types[0], operand_types[1]); |
3145 | overlap1 = operand_type_and (i.types[1], operand_types[0]); | |
40fb9820 L |
3146 | if (!operand_type_match (overlap0, i.types[0]) |
3147 | || !operand_type_match (overlap1, i.types[1]) | |
3148 | || !operand_type_register_match (overlap0, i.types[0], | |
3149 | operand_types[1], | |
3150 | overlap1, i.types[1], | |
3151 | operand_types[0])) | |
29b0f896 AM |
3152 | { |
3153 | /* Does not match either direction. */ | |
3154 | continue; | |
3155 | } | |
3156 | /* found_reverse_match holds which of D or FloatDR | |
3157 | we've found. */ | |
40fb9820 | 3158 | if (t->opcode_modifier.d) |
8a2ed489 | 3159 | found_reverse_match = Opcode_D; |
40fb9820 | 3160 | else if (t->opcode_modifier.floatd) |
8a2ed489 L |
3161 | found_reverse_match = Opcode_FloatD; |
3162 | else | |
3163 | found_reverse_match = 0; | |
40fb9820 | 3164 | if (t->opcode_modifier.floatr) |
8a2ed489 | 3165 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 3166 | } |
f48ff2ae | 3167 | else |
29b0f896 | 3168 | { |
f48ff2ae | 3169 | /* Found a forward 2 operand match here. */ |
d1cbb4db L |
3170 | switch (t->operands) |
3171 | { | |
3172 | case 4: | |
c6fb90c8 L |
3173 | overlap3 = operand_type_and (i.types[3], |
3174 | operand_types[3]); | |
d1cbb4db | 3175 | case 3: |
c6fb90c8 L |
3176 | overlap2 = operand_type_and (i.types[2], |
3177 | operand_types[2]); | |
d1cbb4db L |
3178 | break; |
3179 | } | |
29b0f896 | 3180 | |
f48ff2ae L |
3181 | switch (t->operands) |
3182 | { | |
3183 | case 4: | |
40fb9820 L |
3184 | if (!operand_type_match (overlap3, i.types[3]) |
3185 | || !operand_type_register_match (overlap2, | |
3186 | i.types[2], | |
3187 | operand_types[2], | |
3188 | overlap3, | |
3189 | i.types[3], | |
3190 | operand_types[3])) | |
f48ff2ae L |
3191 | continue; |
3192 | case 3: | |
3193 | /* Here we make use of the fact that there are no | |
3194 | reverse match 3 operand instructions, and all 3 | |
3195 | operand instructions only need to be checked for | |
3196 | register consistency between operands 2 and 3. */ | |
40fb9820 L |
3197 | if (!operand_type_match (overlap2, i.types[2]) |
3198 | || !operand_type_register_match (overlap1, | |
3199 | i.types[1], | |
3200 | operand_types[1], | |
3201 | overlap2, | |
3202 | i.types[2], | |
3203 | operand_types[2])) | |
f48ff2ae L |
3204 | continue; |
3205 | break; | |
3206 | } | |
29b0f896 | 3207 | } |
f48ff2ae | 3208 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
3209 | slip through to break. */ |
3210 | } | |
c6fb90c8 | 3211 | if (!UINTS_ALL_ZERO (overlap)) |
29b0f896 AM |
3212 | { |
3213 | found_reverse_match = 0; | |
3214 | continue; | |
3215 | } | |
3216 | /* We've found a match; break out of loop. */ | |
3217 | break; | |
3218 | } | |
3219 | ||
3220 | if (t == current_templates->end) | |
3221 | { | |
3222 | /* We found no match. */ | |
3223 | as_bad (_("suffix or operands invalid for `%s'"), | |
3224 | current_templates->start->name); | |
3225 | return 0; | |
3226 | } | |
252b5132 | 3227 | |
29b0f896 AM |
3228 | if (!quiet_warnings) |
3229 | { | |
3230 | if (!intel_syntax | |
40fb9820 L |
3231 | && (i.types[0].bitfield.jumpabsolute |
3232 | != operand_types[0].bitfield.jumpabsolute)) | |
29b0f896 AM |
3233 | { |
3234 | as_warn (_("indirect %s without `*'"), t->name); | |
3235 | } | |
3236 | ||
40fb9820 L |
3237 | if (t->opcode_modifier.isprefix |
3238 | && t->opcode_modifier.ignoresize) | |
29b0f896 AM |
3239 | { |
3240 | /* Warn them that a data or address size prefix doesn't | |
3241 | affect assembly of the next line of code. */ | |
3242 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
3243 | } | |
3244 | } | |
3245 | ||
3246 | /* Copy the template we found. */ | |
3247 | i.tm = *t; | |
539e75ad L |
3248 | |
3249 | if (addr_prefix_disp != -1) | |
3250 | i.tm.operand_types[addr_prefix_disp] | |
3251 | = operand_types[addr_prefix_disp]; | |
3252 | ||
29b0f896 AM |
3253 | if (found_reverse_match) |
3254 | { | |
3255 | /* If we found a reverse match we must alter the opcode | |
3256 | direction bit. found_reverse_match holds bits to change | |
3257 | (different for int & float insns). */ | |
3258 | ||
3259 | i.tm.base_opcode ^= found_reverse_match; | |
3260 | ||
539e75ad L |
3261 | i.tm.operand_types[0] = operand_types[1]; |
3262 | i.tm.operand_types[1] = operand_types[0]; | |
29b0f896 AM |
3263 | } |
3264 | ||
3265 | return 1; | |
3266 | } | |
3267 | ||
3268 | static int | |
e3bb37b5 | 3269 | check_string (void) |
29b0f896 | 3270 | { |
40fb9820 L |
3271 | int mem_op = operand_type_check (i.types[0], anymem) ? 0 : 1; |
3272 | if (i.tm.operand_types[mem_op].bitfield.esseg) | |
29b0f896 AM |
3273 | { |
3274 | if (i.seg[0] != NULL && i.seg[0] != &es) | |
3275 | { | |
3276 | as_bad (_("`%s' operand %d must use `%%es' segment"), | |
3277 | i.tm.name, | |
3278 | mem_op + 1); | |
3279 | return 0; | |
3280 | } | |
3281 | /* There's only ever one segment override allowed per instruction. | |
3282 | This instruction possibly has a legal segment override on the | |
3283 | second operand, so copy the segment to where non-string | |
3284 | instructions store it, allowing common code. */ | |
3285 | i.seg[0] = i.seg[1]; | |
3286 | } | |
40fb9820 | 3287 | else if (i.tm.operand_types[mem_op + 1].bitfield.esseg) |
29b0f896 AM |
3288 | { |
3289 | if (i.seg[1] != NULL && i.seg[1] != &es) | |
3290 | { | |
3291 | as_bad (_("`%s' operand %d must use `%%es' segment"), | |
3292 | i.tm.name, | |
3293 | mem_op + 2); | |
3294 | return 0; | |
3295 | } | |
3296 | } | |
3297 | return 1; | |
3298 | } | |
3299 | ||
3300 | static int | |
543613e9 | 3301 | process_suffix (void) |
29b0f896 AM |
3302 | { |
3303 | /* If matched instruction specifies an explicit instruction mnemonic | |
3304 | suffix, use it. */ | |
40fb9820 L |
3305 | if (i.tm.opcode_modifier.size16) |
3306 | i.suffix = WORD_MNEM_SUFFIX; | |
3307 | else if (i.tm.opcode_modifier.size32) | |
3308 | i.suffix = LONG_MNEM_SUFFIX; | |
3309 | else if (i.tm.opcode_modifier.size64) | |
3310 | i.suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 AM |
3311 | else if (i.reg_operands) |
3312 | { | |
3313 | /* If there's no instruction mnemonic suffix we try to invent one | |
3314 | based on register operands. */ | |
3315 | if (!i.suffix) | |
3316 | { | |
3317 | /* We take i.suffix from the last register operand specified, | |
3318 | Destination register type is more significant than source | |
381d071f L |
3319 | register type. crc32 in SSE4.2 prefers source register |
3320 | type. */ | |
3321 | if (i.tm.base_opcode == 0xf20f38f1) | |
3322 | { | |
40fb9820 L |
3323 | if (i.types[0].bitfield.reg16) |
3324 | i.suffix = WORD_MNEM_SUFFIX; | |
3325 | else if (i.types[0].bitfield.reg32) | |
3326 | i.suffix = LONG_MNEM_SUFFIX; | |
3327 | else if (i.types[0].bitfield.reg64) | |
3328 | i.suffix = QWORD_MNEM_SUFFIX; | |
381d071f | 3329 | } |
9344ff29 | 3330 | else if (i.tm.base_opcode == 0xf20f38f0) |
20592a94 | 3331 | { |
40fb9820 | 3332 | if (i.types[0].bitfield.reg8) |
20592a94 L |
3333 | i.suffix = BYTE_MNEM_SUFFIX; |
3334 | } | |
381d071f L |
3335 | |
3336 | if (!i.suffix) | |
3337 | { | |
3338 | int op; | |
3339 | ||
20592a94 L |
3340 | if (i.tm.base_opcode == 0xf20f38f1 |
3341 | || i.tm.base_opcode == 0xf20f38f0) | |
3342 | { | |
3343 | /* We have to know the operand size for crc32. */ | |
3344 | as_bad (_("ambiguous memory operand size for `%s`"), | |
3345 | i.tm.name); | |
3346 | return 0; | |
3347 | } | |
3348 | ||
381d071f | 3349 | for (op = i.operands; --op >= 0;) |
40fb9820 | 3350 | if (!i.tm.operand_types[op].bitfield.inoutportreg) |
381d071f | 3351 | { |
40fb9820 L |
3352 | if (i.types[op].bitfield.reg8) |
3353 | { | |
3354 | i.suffix = BYTE_MNEM_SUFFIX; | |
3355 | break; | |
3356 | } | |
3357 | else if (i.types[op].bitfield.reg16) | |
3358 | { | |
3359 | i.suffix = WORD_MNEM_SUFFIX; | |
3360 | break; | |
3361 | } | |
3362 | else if (i.types[op].bitfield.reg32) | |
3363 | { | |
3364 | i.suffix = LONG_MNEM_SUFFIX; | |
3365 | break; | |
3366 | } | |
3367 | else if (i.types[op].bitfield.reg64) | |
3368 | { | |
3369 | i.suffix = QWORD_MNEM_SUFFIX; | |
3370 | break; | |
3371 | } | |
381d071f L |
3372 | } |
3373 | } | |
29b0f896 AM |
3374 | } |
3375 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
3376 | { | |
3377 | if (!check_byte_reg ()) | |
3378 | return 0; | |
3379 | } | |
3380 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
3381 | { | |
3382 | if (!check_long_reg ()) | |
3383 | return 0; | |
3384 | } | |
3385 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3386 | { | |
955e1e6a L |
3387 | if (intel_syntax |
3388 | && i.tm.opcode_modifier.ignoresize | |
3389 | && i.tm.opcode_modifier.no_qsuf) | |
3390 | i.suffix = 0; | |
3391 | else if (!check_qword_reg ()) | |
29b0f896 AM |
3392 | return 0; |
3393 | } | |
3394 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
3395 | { | |
3396 | if (!check_word_reg ()) | |
3397 | return 0; | |
3398 | } | |
40fb9820 | 3399 | else if (intel_syntax && i.tm.opcode_modifier.ignoresize) |
29b0f896 AM |
3400 | /* Do nothing if the instruction is going to ignore the prefix. */ |
3401 | ; | |
3402 | else | |
3403 | abort (); | |
3404 | } | |
40fb9820 | 3405 | else if (i.tm.opcode_modifier.defaultsize |
9306ca4a JB |
3406 | && !i.suffix |
3407 | /* exclude fldenv/frstor/fsave/fstenv */ | |
40fb9820 | 3408 | && i.tm.opcode_modifier.no_ssuf) |
29b0f896 AM |
3409 | { |
3410 | i.suffix = stackop_size; | |
3411 | } | |
9306ca4a JB |
3412 | else if (intel_syntax |
3413 | && !i.suffix | |
40fb9820 L |
3414 | && (i.tm.operand_types[0].bitfield.jumpabsolute |
3415 | || i.tm.opcode_modifier.jumpbyte | |
3416 | || i.tm.opcode_modifier.jumpintersegment | |
64e74474 AM |
3417 | || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */ |
3418 | && i.tm.extension_opcode <= 3))) | |
9306ca4a JB |
3419 | { |
3420 | switch (flag_code) | |
3421 | { | |
3422 | case CODE_64BIT: | |
40fb9820 | 3423 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a JB |
3424 | { |
3425 | i.suffix = QWORD_MNEM_SUFFIX; | |
3426 | break; | |
3427 | } | |
3428 | case CODE_32BIT: | |
40fb9820 | 3429 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
3430 | i.suffix = LONG_MNEM_SUFFIX; |
3431 | break; | |
3432 | case CODE_16BIT: | |
40fb9820 | 3433 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
3434 | i.suffix = WORD_MNEM_SUFFIX; |
3435 | break; | |
3436 | } | |
3437 | } | |
252b5132 | 3438 | |
9306ca4a | 3439 | if (!i.suffix) |
29b0f896 | 3440 | { |
9306ca4a JB |
3441 | if (!intel_syntax) |
3442 | { | |
40fb9820 | 3443 | if (i.tm.opcode_modifier.w) |
9306ca4a | 3444 | { |
4eed87de AM |
3445 | as_bad (_("no instruction mnemonic suffix given and " |
3446 | "no register operands; can't size instruction")); | |
9306ca4a JB |
3447 | return 0; |
3448 | } | |
3449 | } | |
3450 | else | |
3451 | { | |
40fb9820 L |
3452 | unsigned int suffixes; |
3453 | ||
3454 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
3455 | if (!i.tm.opcode_modifier.no_wsuf) | |
3456 | suffixes |= 1 << 1; | |
3457 | if (!i.tm.opcode_modifier.no_lsuf) | |
3458 | suffixes |= 1 << 2; | |
3459 | if (!i.tm.opcode_modifier.no_lsuf) | |
3460 | suffixes |= 1 << 3; | |
3461 | if (!i.tm.opcode_modifier.no_ssuf) | |
3462 | suffixes |= 1 << 4; | |
3463 | if (!i.tm.opcode_modifier.no_qsuf) | |
3464 | suffixes |= 1 << 5; | |
3465 | ||
3466 | /* There are more than suffix matches. */ | |
3467 | if (i.tm.opcode_modifier.w | |
9306ca4a | 3468 | || ((suffixes & (suffixes - 1)) |
40fb9820 L |
3469 | && !i.tm.opcode_modifier.defaultsize |
3470 | && !i.tm.opcode_modifier.ignoresize)) | |
9306ca4a JB |
3471 | { |
3472 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); | |
3473 | return 0; | |
3474 | } | |
3475 | } | |
29b0f896 | 3476 | } |
252b5132 | 3477 | |
9306ca4a JB |
3478 | /* Change the opcode based on the operand size given by i.suffix; |
3479 | We don't need to change things for byte insns. */ | |
3480 | ||
29b0f896 AM |
3481 | if (i.suffix && i.suffix != BYTE_MNEM_SUFFIX) |
3482 | { | |
3483 | /* It's not a byte, select word/dword operation. */ | |
40fb9820 | 3484 | if (i.tm.opcode_modifier.w) |
29b0f896 | 3485 | { |
40fb9820 | 3486 | if (i.tm.opcode_modifier.shortform) |
29b0f896 AM |
3487 | i.tm.base_opcode |= 8; |
3488 | else | |
3489 | i.tm.base_opcode |= 1; | |
3490 | } | |
0f3f3d8b | 3491 | |
29b0f896 AM |
3492 | /* Now select between word & dword operations via the operand |
3493 | size prefix, except for instructions that will ignore this | |
3494 | prefix anyway. */ | |
26186d74 L |
3495 | if (i.tm.base_opcode == 0x0f01 |
3496 | && (i.tm.extension_opcode == 0xc8 | |
3497 | || i.tm.extension_opcode == 0xd8 | |
3498 | || i.tm.extension_opcode == 0xda | |
3499 | || i.tm.extension_opcode == 0xdb | |
3500 | || i.tm.extension_opcode == 0xdf)) | |
cb712a9e L |
3501 | { |
3502 | /* monitor in SSE3 is a very special case. The default size | |
3503 | of AX is the size of mode. The address size override | |
26186d74 L |
3504 | prefix will change the size of AX. It is also true for |
3505 | invlpga, vmload, vmrun and vmsave in SVME. */ | |
40fb9820 L |
3506 | if ((flag_code == CODE_32BIT |
3507 | && i.op->regs[0].reg_type.bitfield.reg16) | |
3508 | || (flag_code != CODE_32BIT | |
3509 | && i.op->regs[0].reg_type.bitfield.reg32)) | |
cb712a9e L |
3510 | if (!add_prefix (ADDR_PREFIX_OPCODE)) |
3511 | return 0; | |
3512 | } | |
3513 | else if (i.suffix != QWORD_MNEM_SUFFIX | |
3514 | && i.suffix != LONG_DOUBLE_MNEM_SUFFIX | |
40fb9820 L |
3515 | && !i.tm.opcode_modifier.ignoresize |
3516 | && !i.tm.opcode_modifier.floatmf | |
cb712a9e L |
3517 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) |
3518 | || (flag_code == CODE_64BIT | |
40fb9820 | 3519 | && i.tm.opcode_modifier.jumpbyte))) |
24eab124 AM |
3520 | { |
3521 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 3522 | |
40fb9820 | 3523 | if (i.tm.opcode_modifier.jumpbyte) /* jcxz, loop */ |
29b0f896 | 3524 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 3525 | |
29b0f896 AM |
3526 | if (!add_prefix (prefix)) |
3527 | return 0; | |
24eab124 | 3528 | } |
252b5132 | 3529 | |
29b0f896 AM |
3530 | /* Set mode64 for an operand. */ |
3531 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 3532 | && flag_code == CODE_64BIT |
40fb9820 | 3533 | && !i.tm.opcode_modifier.norex64) |
46e883c5 L |
3534 | { |
3535 | /* Special case for xchg %rax,%rax. It is NOP and doesn't | |
d9a5e5e5 L |
3536 | need rex64. cmpxchg8b is also a special case. */ |
3537 | if (! (i.operands == 2 | |
3538 | && i.tm.base_opcode == 0x90 | |
3539 | && i.tm.extension_opcode == None | |
c6fb90c8 L |
3540 | && UINTS_EQUAL (i.types [0], acc64) |
3541 | && UINTS_EQUAL (i.types [1], acc64)) | |
d9a5e5e5 L |
3542 | && ! (i.operands == 1 |
3543 | && i.tm.base_opcode == 0xfc7 | |
3544 | && i.tm.extension_opcode == 1 | |
40fb9820 L |
3545 | && !operand_type_check (i.types [0], reg) |
3546 | && operand_type_check (i.types [0], anymem))) | |
f6bee062 | 3547 | i.rex |= REX_W; |
46e883c5 | 3548 | } |
3e73aa7c | 3549 | |
29b0f896 AM |
3550 | /* Size floating point instruction. */ |
3551 | if (i.suffix == LONG_MNEM_SUFFIX) | |
40fb9820 | 3552 | if (i.tm.opcode_modifier.floatmf) |
543613e9 | 3553 | i.tm.base_opcode ^= 4; |
29b0f896 | 3554 | } |
7ecd2f8b | 3555 | |
29b0f896 AM |
3556 | return 1; |
3557 | } | |
3e73aa7c | 3558 | |
29b0f896 | 3559 | static int |
543613e9 | 3560 | check_byte_reg (void) |
29b0f896 AM |
3561 | { |
3562 | int op; | |
543613e9 | 3563 | |
29b0f896 AM |
3564 | for (op = i.operands; --op >= 0;) |
3565 | { | |
3566 | /* If this is an eight bit register, it's OK. If it's the 16 or | |
3567 | 32 bit version of an eight bit register, we will just use the | |
3568 | low portion, and that's OK too. */ | |
40fb9820 | 3569 | if (i.types[op].bitfield.reg8) |
29b0f896 AM |
3570 | continue; |
3571 | ||
c3ad16c0 L |
3572 | /* movzx, movsx, pextrb and pinsrb should not generate this |
3573 | warning. */ | |
29b0f896 AM |
3574 | if (intel_syntax |
3575 | && (i.tm.base_opcode == 0xfb7 | |
3576 | || i.tm.base_opcode == 0xfb6 | |
3577 | || i.tm.base_opcode == 0x63 | |
3578 | || i.tm.base_opcode == 0xfbe | |
c3ad16c0 L |
3579 | || i.tm.base_opcode == 0xfbf |
3580 | || i.tm.base_opcode == 0x660f3a14 | |
3581 | || i.tm.base_opcode == 0x660f3a20)) | |
29b0f896 AM |
3582 | continue; |
3583 | ||
9344ff29 L |
3584 | /* crc32 doesn't generate this warning. */ |
3585 | if (i.tm.base_opcode == 0xf20f38f0) | |
3586 | continue; | |
3587 | ||
40fb9820 L |
3588 | if ((i.types[op].bitfield.reg16 |
3589 | || i.types[op].bitfield.reg32 | |
3590 | || i.types[op].bitfield.reg64) | |
3591 | && i.op[op].regs->reg_num < 4) | |
29b0f896 AM |
3592 | { |
3593 | /* Prohibit these changes in the 64bit mode, since the | |
3594 | lowering is more complicated. */ | |
3595 | if (flag_code == CODE_64BIT | |
40fb9820 | 3596 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
29b0f896 | 3597 | { |
2ca3ace5 L |
3598 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
3599 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
3600 | i.suffix); |
3601 | return 0; | |
3602 | } | |
3603 | #if REGISTER_WARNINGS | |
3604 | if (!quiet_warnings | |
40fb9820 | 3605 | && !i.tm.operand_types[op].bitfield.inoutportreg) |
a540244d L |
3606 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
3607 | register_prefix, | |
40fb9820 | 3608 | (i.op[op].regs + (i.types[op].bitfield.reg16 |
29b0f896 AM |
3609 | ? REGNAM_AL - REGNAM_AX |
3610 | : REGNAM_AL - REGNAM_EAX))->reg_name, | |
a540244d | 3611 | register_prefix, |
29b0f896 AM |
3612 | i.op[op].regs->reg_name, |
3613 | i.suffix); | |
3614 | #endif | |
3615 | continue; | |
3616 | } | |
3617 | /* Any other register is bad. */ | |
40fb9820 L |
3618 | if (i.types[op].bitfield.reg16 |
3619 | || i.types[op].bitfield.reg32 | |
3620 | || i.types[op].bitfield.reg64 | |
3621 | || i.types[op].bitfield.regmmx | |
3622 | || i.types[op].bitfield.regxmm | |
3623 | || i.types[op].bitfield.sreg2 | |
3624 | || i.types[op].bitfield.sreg3 | |
3625 | || i.types[op].bitfield.control | |
3626 | || i.types[op].bitfield.debug | |
3627 | || i.types[op].bitfield.test | |
3628 | || i.types[op].bitfield.floatreg | |
3629 | || i.types[op].bitfield.floatacc) | |
29b0f896 | 3630 | { |
a540244d L |
3631 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
3632 | register_prefix, | |
29b0f896 AM |
3633 | i.op[op].regs->reg_name, |
3634 | i.tm.name, | |
3635 | i.suffix); | |
3636 | return 0; | |
3637 | } | |
3638 | } | |
3639 | return 1; | |
3640 | } | |
3641 | ||
3642 | static int | |
e3bb37b5 | 3643 | check_long_reg (void) |
29b0f896 AM |
3644 | { |
3645 | int op; | |
3646 | ||
3647 | for (op = i.operands; --op >= 0;) | |
3648 | /* Reject eight bit registers, except where the template requires | |
3649 | them. (eg. movzb) */ | |
40fb9820 L |
3650 | if (i.types[op].bitfield.reg8 |
3651 | && (i.tm.operand_types[op].bitfield.reg16 | |
3652 | || i.tm.operand_types[op].bitfield.reg32 | |
3653 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 3654 | { |
a540244d L |
3655 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
3656 | register_prefix, | |
29b0f896 AM |
3657 | i.op[op].regs->reg_name, |
3658 | i.tm.name, | |
3659 | i.suffix); | |
3660 | return 0; | |
3661 | } | |
3662 | /* Warn if the e prefix on a general reg is missing. */ | |
3663 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
3664 | && i.types[op].bitfield.reg16 |
3665 | && (i.tm.operand_types[op].bitfield.reg32 | |
3666 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
3667 | { |
3668 | /* Prohibit these changes in the 64bit mode, since the | |
3669 | lowering is more complicated. */ | |
3670 | if (flag_code == CODE_64BIT) | |
252b5132 | 3671 | { |
2ca3ace5 L |
3672 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
3673 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
3674 | i.suffix); |
3675 | return 0; | |
252b5132 | 3676 | } |
29b0f896 AM |
3677 | #if REGISTER_WARNINGS |
3678 | else | |
a540244d L |
3679 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
3680 | register_prefix, | |
29b0f896 | 3681 | (i.op[op].regs + REGNAM_EAX - REGNAM_AX)->reg_name, |
a540244d | 3682 | register_prefix, |
29b0f896 AM |
3683 | i.op[op].regs->reg_name, |
3684 | i.suffix); | |
3685 | #endif | |
252b5132 | 3686 | } |
29b0f896 | 3687 | /* Warn if the r prefix on a general reg is missing. */ |
40fb9820 L |
3688 | else if (i.types[op].bitfield.reg64 |
3689 | && (i.tm.operand_types[op].bitfield.reg32 | |
3690 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 3691 | { |
34828aad | 3692 | if (intel_syntax |
07e8d93c L |
3693 | && (i.tm.base_opcode == 0xf30f2d |
3694 | || i.tm.base_opcode == 0xf30f2c) | |
40fb9820 | 3695 | && !i.types[0].bitfield.regxmm) |
34828aad | 3696 | { |
07e8d93c L |
3697 | /* cvtss2si/cvttss2si convert DWORD memory to Reg64. We |
3698 | want REX byte. */ | |
34828aad L |
3699 | i.suffix = QWORD_MNEM_SUFFIX; |
3700 | } | |
3701 | else | |
3702 | { | |
3703 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
3704 | register_prefix, i.op[op].regs->reg_name, | |
3705 | i.suffix); | |
3706 | return 0; | |
3707 | } | |
29b0f896 AM |
3708 | } |
3709 | return 1; | |
3710 | } | |
252b5132 | 3711 | |
29b0f896 | 3712 | static int |
e3bb37b5 | 3713 | check_qword_reg (void) |
29b0f896 AM |
3714 | { |
3715 | int op; | |
252b5132 | 3716 | |
29b0f896 AM |
3717 | for (op = i.operands; --op >= 0; ) |
3718 | /* Reject eight bit registers, except where the template requires | |
3719 | them. (eg. movzb) */ | |
40fb9820 L |
3720 | if (i.types[op].bitfield.reg8 |
3721 | && (i.tm.operand_types[op].bitfield.reg16 | |
3722 | || i.tm.operand_types[op].bitfield.reg32 | |
3723 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 3724 | { |
a540244d L |
3725 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
3726 | register_prefix, | |
29b0f896 AM |
3727 | i.op[op].regs->reg_name, |
3728 | i.tm.name, | |
3729 | i.suffix); | |
3730 | return 0; | |
3731 | } | |
3732 | /* Warn if the e prefix on a general reg is missing. */ | |
40fb9820 L |
3733 | else if ((i.types[op].bitfield.reg16 |
3734 | || i.types[op].bitfield.reg32) | |
3735 | && (i.tm.operand_types[op].bitfield.reg32 | |
3736 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 AM |
3737 | { |
3738 | /* Prohibit these changes in the 64bit mode, since the | |
3739 | lowering is more complicated. */ | |
34828aad | 3740 | if (intel_syntax |
07e8d93c L |
3741 | && (i.tm.base_opcode == 0xf20f2d |
3742 | || i.tm.base_opcode == 0xf20f2c) | |
40fb9820 | 3743 | && !i.types[0].bitfield.regxmm) |
34828aad | 3744 | { |
07e8d93c L |
3745 | /* cvtsd2si/cvttsd2si convert QWORD memory to Reg32. We |
3746 | don't want REX byte. */ | |
34828aad L |
3747 | i.suffix = LONG_MNEM_SUFFIX; |
3748 | } | |
3749 | else | |
3750 | { | |
3751 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), | |
3752 | register_prefix, i.op[op].regs->reg_name, | |
3753 | i.suffix); | |
3754 | return 0; | |
3755 | } | |
252b5132 | 3756 | } |
29b0f896 AM |
3757 | return 1; |
3758 | } | |
252b5132 | 3759 | |
29b0f896 | 3760 | static int |
e3bb37b5 | 3761 | check_word_reg (void) |
29b0f896 AM |
3762 | { |
3763 | int op; | |
3764 | for (op = i.operands; --op >= 0;) | |
3765 | /* Reject eight bit registers, except where the template requires | |
3766 | them. (eg. movzb) */ | |
40fb9820 L |
3767 | if (i.types[op].bitfield.reg8 |
3768 | && (i.tm.operand_types[op].bitfield.reg16 | |
3769 | || i.tm.operand_types[op].bitfield.reg32 | |
3770 | || i.tm.operand_types[op].bitfield.acc)) | |
29b0f896 | 3771 | { |
a540244d L |
3772 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
3773 | register_prefix, | |
29b0f896 AM |
3774 | i.op[op].regs->reg_name, |
3775 | i.tm.name, | |
3776 | i.suffix); | |
3777 | return 0; | |
3778 | } | |
3779 | /* Warn if the e prefix on a general reg is present. */ | |
3780 | else if ((!quiet_warnings || flag_code == CODE_64BIT) | |
40fb9820 L |
3781 | && i.types[op].bitfield.reg32 |
3782 | && (i.tm.operand_types[op].bitfield.reg16 | |
3783 | || i.tm.operand_types[op].bitfield.acc)) | |
252b5132 | 3784 | { |
29b0f896 AM |
3785 | /* Prohibit these changes in the 64bit mode, since the |
3786 | lowering is more complicated. */ | |
3787 | if (flag_code == CODE_64BIT) | |
252b5132 | 3788 | { |
2ca3ace5 L |
3789 | as_bad (_("Incorrect register `%s%s' used with `%c' suffix"), |
3790 | register_prefix, i.op[op].regs->reg_name, | |
29b0f896 AM |
3791 | i.suffix); |
3792 | return 0; | |
252b5132 | 3793 | } |
29b0f896 AM |
3794 | else |
3795 | #if REGISTER_WARNINGS | |
a540244d L |
3796 | as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"), |
3797 | register_prefix, | |
29b0f896 | 3798 | (i.op[op].regs + REGNAM_AX - REGNAM_EAX)->reg_name, |
a540244d | 3799 | register_prefix, |
29b0f896 AM |
3800 | i.op[op].regs->reg_name, |
3801 | i.suffix); | |
3802 | #endif | |
3803 | } | |
3804 | return 1; | |
3805 | } | |
252b5132 | 3806 | |
29b0f896 | 3807 | static int |
40fb9820 | 3808 | update_imm (unsigned int j) |
29b0f896 | 3809 | { |
40fb9820 L |
3810 | i386_operand_type overlap; |
3811 | ||
c6fb90c8 | 3812 | overlap = operand_type_and (i.types[j], i.tm.operand_types[j]); |
40fb9820 L |
3813 | if ((overlap.bitfield.imm8 |
3814 | || overlap.bitfield.imm8s | |
3815 | || overlap.bitfield.imm16 | |
3816 | || overlap.bitfield.imm32 | |
3817 | || overlap.bitfield.imm32s | |
3818 | || overlap.bitfield.imm64) | |
c6fb90c8 L |
3819 | && !UINTS_EQUAL (overlap, imm8) |
3820 | && !UINTS_EQUAL (overlap, imm8s) | |
3821 | && !UINTS_EQUAL (overlap, imm16) | |
3822 | && !UINTS_EQUAL (overlap, imm32) | |
3823 | && !UINTS_EQUAL (overlap, imm32s) | |
3824 | && !UINTS_EQUAL (overlap, imm64)) | |
29b0f896 AM |
3825 | { |
3826 | if (i.suffix) | |
3827 | { | |
40fb9820 L |
3828 | i386_operand_type temp; |
3829 | ||
c6fb90c8 | 3830 | UINTS_CLEAR (temp); |
40fb9820 L |
3831 | if (i.suffix == BYTE_MNEM_SUFFIX) |
3832 | { | |
3833 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
3834 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
3835 | } | |
3836 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
3837 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
3838 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
3839 | { | |
3840 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
3841 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
3842 | } | |
3843 | else | |
3844 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
3845 | overlap = temp; | |
29b0f896 | 3846 | } |
c6fb90c8 L |
3847 | else if (UINTS_EQUAL (overlap, imm16_32_32s) |
3848 | || UINTS_EQUAL (overlap, imm16_32) | |
3849 | || UINTS_EQUAL (overlap, imm16_32s)) | |
29b0f896 | 3850 | { |
c6fb90c8 | 3851 | UINTS_CLEAR (overlap); |
40fb9820 L |
3852 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
3853 | overlap.bitfield.imm16 = 1; | |
3854 | else | |
3855 | overlap.bitfield.imm32s = 1; | |
29b0f896 | 3856 | } |
c6fb90c8 L |
3857 | if (!UINTS_EQUAL (overlap, imm8) |
3858 | && !UINTS_EQUAL (overlap, imm8s) | |
3859 | && !UINTS_EQUAL (overlap, imm16) | |
3860 | && !UINTS_EQUAL (overlap, imm32) | |
3861 | && !UINTS_EQUAL (overlap, imm32s) | |
3862 | && !UINTS_EQUAL (overlap, imm64)) | |
29b0f896 | 3863 | { |
4eed87de AM |
3864 | as_bad (_("no instruction mnemonic suffix given; " |
3865 | "can't determine immediate size")); | |
29b0f896 AM |
3866 | return 0; |
3867 | } | |
3868 | } | |
40fb9820 | 3869 | i.types[j] = overlap; |
29b0f896 | 3870 | |
40fb9820 L |
3871 | return 1; |
3872 | } | |
3873 | ||
3874 | static int | |
3875 | finalize_imm (void) | |
3876 | { | |
3877 | unsigned int j; | |
29b0f896 | 3878 | |
40fb9820 L |
3879 | for (j = 0; j < 2; j++) |
3880 | if (update_imm (j) == 0) | |
3881 | return 0; | |
3882 | ||
c6fb90c8 | 3883 | i.types[2] = operand_type_and (i.types[2], i.tm.operand_types[2]); |
40fb9820 | 3884 | assert (operand_type_check (i.types[2], imm) == 0); |
29b0f896 AM |
3885 | |
3886 | return 1; | |
3887 | } | |
3888 | ||
85f10a01 MM |
3889 | static void |
3890 | process_drex (void) | |
3891 | { | |
3892 | i.drex.modrm_reg = None; | |
3893 | i.drex.modrm_regmem = None; | |
3894 | ||
3895 | /* SSE5 4 operand instructions must have the destination the same as | |
3896 | one of the inputs. Figure out the destination register and cache | |
3897 | it away in the drex field, and remember which fields to use for | |
3898 | the modrm byte. */ | |
3899 | if (i.tm.opcode_modifier.drex | |
3900 | && i.tm.opcode_modifier.drexv | |
3901 | && i.operands == 4) | |
3902 | { | |
3903 | i.tm.extension_opcode = None; | |
3904 | ||
3905 | /* Case 1: 4 operand insn, dest = src1, src3 = register. */ | |
3906 | if (i.types[0].bitfield.regxmm != 0 | |
3907 | && i.types[1].bitfield.regxmm != 0 | |
3908 | && i.types[2].bitfield.regxmm != 0 | |
3909 | && i.types[3].bitfield.regxmm != 0 | |
3910 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
3911 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
3912 | { | |
3913 | /* Clear the arguments that are stored in drex. */ | |
3914 | UINTS_CLEAR (i.types[0]); | |
3915 | UINTS_CLEAR (i.types[3]); | |
3916 | i.reg_operands -= 2; | |
3917 | ||
3918 | /* There are two different ways to encode a 4 operand | |
3919 | instruction with all registers that uses OC1 set to | |
3920 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
3921 | actions of other SSE5 assemblers. Use modrm encoding 2 | |
3922 | for register/register. Include the high order bit that | |
3923 | is normally stored in the REX byte in the register | |
3924 | field. */ | |
3925 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
3926 | i.drex.modrm_reg = 2; | |
3927 | i.drex.modrm_regmem = 1; | |
3928 | i.drex.reg = (i.op[3].regs->reg_num | |
3929 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
3930 | } | |
3931 | ||
3932 | /* Case 2: 4 operand insn, dest = src1, src3 = memory. */ | |
3933 | else if (i.types[0].bitfield.regxmm != 0 | |
3934 | && i.types[1].bitfield.regxmm != 0 | |
3935 | && (i.types[2].bitfield.regxmm | |
3936 | || operand_type_check (i.types[2], anymem)) | |
3937 | && i.types[3].bitfield.regxmm != 0 | |
3938 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
3939 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
3940 | { | |
3941 | /* clear the arguments that are stored in drex */ | |
3942 | UINTS_CLEAR (i.types[0]); | |
3943 | UINTS_CLEAR (i.types[3]); | |
3944 | i.reg_operands -= 2; | |
3945 | ||
3946 | /* Specify the modrm encoding for memory addressing. Include | |
3947 | the high order bit that is normally stored in the REX byte | |
3948 | in the register field. */ | |
3949 | i.tm.extension_opcode = DREX_X1_X2_XMEM_X1; | |
3950 | i.drex.modrm_reg = 1; | |
3951 | i.drex.modrm_regmem = 2; | |
3952 | i.drex.reg = (i.op[3].regs->reg_num | |
3953 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
3954 | } | |
3955 | ||
3956 | /* Case 3: 4 operand insn, dest = src1, src2 = memory. */ | |
3957 | else if (i.types[0].bitfield.regxmm != 0 | |
3958 | && operand_type_check (i.types[1], anymem) != 0 | |
3959 | && i.types[2].bitfield.regxmm != 0 | |
3960 | && i.types[3].bitfield.regxmm != 0 | |
3961 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
3962 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
3963 | { | |
3964 | /* Clear the arguments that are stored in drex. */ | |
3965 | UINTS_CLEAR (i.types[0]); | |
3966 | UINTS_CLEAR (i.types[3]); | |
3967 | i.reg_operands -= 2; | |
3968 | ||
3969 | /* Specify the modrm encoding for memory addressing. Include | |
3970 | the high order bit that is normally stored in the REX byte | |
3971 | in the register field. */ | |
3972 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X1; | |
3973 | i.drex.modrm_reg = 2; | |
3974 | i.drex.modrm_regmem = 1; | |
3975 | i.drex.reg = (i.op[3].regs->reg_num | |
3976 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
3977 | } | |
3978 | ||
3979 | /* Case 4: 4 operand insn, dest = src3, src2 = register. */ | |
3980 | else if (i.types[0].bitfield.regxmm != 0 | |
3981 | && i.types[1].bitfield.regxmm != 0 | |
3982 | && i.types[2].bitfield.regxmm != 0 | |
3983 | && i.types[3].bitfield.regxmm != 0 | |
3984 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
3985 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
3986 | { | |
3987 | /* clear the arguments that are stored in drex */ | |
3988 | UINTS_CLEAR (i.types[2]); | |
3989 | UINTS_CLEAR (i.types[3]); | |
3990 | i.reg_operands -= 2; | |
3991 | ||
3992 | /* There are two different ways to encode a 4 operand | |
3993 | instruction with all registers that uses OC1 set to | |
3994 | 0 or 1. Favor setting OC1 to 0 since this mimics the | |
3995 | actions of other SSE5 assemblers. Use modrm encoding | |
3996 | 2 for register/register. Include the high order bit that | |
3997 | is normally stored in the REX byte in the register | |
3998 | field. */ | |
3999 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4000 | i.drex.modrm_reg = 1; | |
4001 | i.drex.modrm_regmem = 0; | |
4002 | ||
4003 | /* Remember the register, including the upper bits */ | |
4004 | i.drex.reg = (i.op[3].regs->reg_num | |
4005 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4006 | } | |
4007 | ||
4008 | /* Case 5: 4 operand insn, dest = src3, src2 = memory. */ | |
4009 | else if (i.types[0].bitfield.regxmm != 0 | |
4010 | && (i.types[1].bitfield.regxmm | |
4011 | || operand_type_check (i.types[1], anymem)) | |
4012 | && i.types[2].bitfield.regxmm != 0 | |
4013 | && i.types[3].bitfield.regxmm != 0 | |
4014 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4015 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4016 | { | |
4017 | /* Clear the arguments that are stored in drex. */ | |
4018 | UINTS_CLEAR (i.types[2]); | |
4019 | UINTS_CLEAR (i.types[3]); | |
4020 | i.reg_operands -= 2; | |
4021 | ||
4022 | /* Specify the modrm encoding and remember the register | |
4023 | including the bits normally stored in the REX byte. */ | |
4024 | i.tm.extension_opcode = DREX_X1_XMEM_X2_X2; | |
4025 | i.drex.modrm_reg = 0; | |
4026 | i.drex.modrm_regmem = 1; | |
4027 | i.drex.reg = (i.op[3].regs->reg_num | |
4028 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4029 | } | |
4030 | ||
4031 | /* Case 6: 4 operand insn, dest = src3, src1 = memory. */ | |
4032 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4033 | && i.types[1].bitfield.regxmm != 0 | |
4034 | && i.types[2].bitfield.regxmm != 0 | |
4035 | && i.types[3].bitfield.regxmm != 0 | |
4036 | && i.op[2].regs->reg_num == i.op[3].regs->reg_num | |
4037 | && i.op[2].regs->reg_flags == i.op[3].regs->reg_flags) | |
4038 | { | |
4039 | /* clear the arguments that are stored in drex */ | |
4040 | UINTS_CLEAR (i.types[2]); | |
4041 | UINTS_CLEAR (i.types[3]); | |
4042 | i.reg_operands -= 2; | |
4043 | ||
4044 | /* Specify the modrm encoding and remember the register | |
4045 | including the bits normally stored in the REX byte. */ | |
4046 | i.tm.extension_opcode = DREX_XMEM_X1_X2_X2; | |
4047 | i.drex.modrm_reg = 1; | |
4048 | i.drex.modrm_regmem = 0; | |
4049 | i.drex.reg = (i.op[3].regs->reg_num | |
4050 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4051 | } | |
4052 | ||
4053 | else | |
4054 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4055 | i.tm.name); | |
4056 | } | |
4057 | ||
4058 | /* SSE5 instructions with the DREX byte where the only memory operand | |
4059 | is in the 2nd argument, and the first and last xmm register must | |
4060 | match, and is encoded in the DREX byte. */ | |
4061 | else if (i.tm.opcode_modifier.drex | |
4062 | && !i.tm.opcode_modifier.drexv | |
4063 | && i.operands == 4) | |
4064 | { | |
4065 | /* Case 1: 4 operand insn, dest = src1, src3 = reg/mem. */ | |
4066 | if (i.types[0].bitfield.regxmm != 0 | |
4067 | && (i.types[1].bitfield.regxmm | |
4068 | || operand_type_check(i.types[1], anymem)) | |
4069 | && i.types[2].bitfield.regxmm != 0 | |
4070 | && i.types[3].bitfield.regxmm != 0 | |
4071 | && i.op[0].regs->reg_num == i.op[3].regs->reg_num | |
4072 | && i.op[0].regs->reg_flags == i.op[3].regs->reg_flags) | |
4073 | { | |
4074 | /* clear the arguments that are stored in drex */ | |
4075 | UINTS_CLEAR (i.types[0]); | |
4076 | UINTS_CLEAR (i.types[3]); | |
4077 | i.reg_operands -= 2; | |
4078 | ||
4079 | /* Specify the modrm encoding and remember the register | |
4080 | including the high bit normally stored in the REX | |
4081 | byte. */ | |
4082 | i.drex.modrm_reg = 2; | |
4083 | i.drex.modrm_regmem = 1; | |
4084 | i.drex.reg = (i.op[3].regs->reg_num | |
4085 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4086 | } | |
4087 | ||
4088 | else | |
4089 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4090 | i.tm.name); | |
4091 | } | |
4092 | ||
4093 | /* SSE5 3 operand instructions that the result is a register, being | |
4094 | either operand can be a memory operand, using OC0 to note which | |
4095 | one is the memory. */ | |
4096 | else if (i.tm.opcode_modifier.drex | |
4097 | && i.tm.opcode_modifier.drexv | |
4098 | && i.operands == 3) | |
4099 | { | |
4100 | i.tm.extension_opcode = None; | |
4101 | ||
4102 | /* Case 1: 3 operand insn, src1 = register. */ | |
4103 | if (i.types[0].bitfield.regxmm != 0 | |
4104 | && i.types[1].bitfield.regxmm != 0 | |
4105 | && i.types[2].bitfield.regxmm != 0) | |
4106 | { | |
4107 | /* Clear the arguments that are stored in drex. */ | |
4108 | UINTS_CLEAR (i.types[2]); | |
4109 | i.reg_operands--; | |
4110 | ||
4111 | /* Specify the modrm encoding and remember the register | |
4112 | including the high bit normally stored in the REX byte. */ | |
4113 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4114 | i.drex.modrm_reg = 1; | |
4115 | i.drex.modrm_regmem = 0; | |
4116 | i.drex.reg = (i.op[2].regs->reg_num | |
4117 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4118 | } | |
4119 | ||
4120 | /* Case 2: 3 operand insn, src1 = memory. */ | |
4121 | else if (operand_type_check (i.types[0], anymem) != 0 | |
4122 | && i.types[1].bitfield.regxmm != 0 | |
4123 | && i.types[2].bitfield.regxmm != 0) | |
4124 | { | |
4125 | /* Clear the arguments that are stored in drex. */ | |
4126 | UINTS_CLEAR (i.types[2]); | |
4127 | i.reg_operands--; | |
4128 | ||
4129 | /* Specify the modrm encoding and remember the register | |
4130 | including the high bit normally stored in the REX | |
4131 | byte. */ | |
4132 | i.tm.extension_opcode = DREX_XMEM_X1_X2; | |
4133 | i.drex.modrm_reg = 1; | |
4134 | i.drex.modrm_regmem = 0; | |
4135 | i.drex.reg = (i.op[2].regs->reg_num | |
4136 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4137 | } | |
4138 | ||
4139 | /* Case 3: 3 operand insn, src2 = memory. */ | |
4140 | else if (i.types[0].bitfield.regxmm != 0 | |
4141 | && operand_type_check (i.types[1], anymem) != 0 | |
4142 | && i.types[2].bitfield.regxmm != 0) | |
4143 | { | |
4144 | /* Clear the arguments that are stored in drex. */ | |
4145 | UINTS_CLEAR (i.types[2]); | |
4146 | i.reg_operands--; | |
4147 | ||
4148 | /* Specify the modrm encoding and remember the register | |
4149 | including the high bit normally stored in the REX byte. */ | |
4150 | i.tm.extension_opcode = DREX_X1_XMEM_X2; | |
4151 | i.drex.modrm_reg = 0; | |
4152 | i.drex.modrm_regmem = 1; | |
4153 | i.drex.reg = (i.op[2].regs->reg_num | |
4154 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4155 | } | |
4156 | ||
4157 | else | |
4158 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4159 | i.tm.name); | |
4160 | } | |
4161 | ||
4162 | /* SSE5 4 operand instructions that are the comparison instructions | |
4163 | where the first operand is the immediate value of the comparison | |
4164 | to be done. */ | |
4165 | else if (i.tm.opcode_modifier.drexc != 0 && i.operands == 4) | |
4166 | { | |
4167 | /* Case 1: 4 operand insn, src1 = reg/memory. */ | |
4168 | if (operand_type_check (i.types[0], imm) != 0 | |
4169 | && (i.types[1].bitfield.regxmm | |
4170 | || operand_type_check (i.types[1], anymem)) | |
4171 | && i.types[2].bitfield.regxmm != 0 | |
4172 | && i.types[3].bitfield.regxmm != 0) | |
4173 | { | |
4174 | /* clear the arguments that are stored in drex */ | |
4175 | UINTS_CLEAR (i.types[3]); | |
4176 | i.reg_operands--; | |
4177 | ||
4178 | /* Specify the modrm encoding and remember the register | |
4179 | including the high bit normally stored in the REX byte. */ | |
4180 | i.drex.modrm_reg = 2; | |
4181 | i.drex.modrm_regmem = 1; | |
4182 | i.drex.reg = (i.op[3].regs->reg_num | |
4183 | + ((i.op[3].regs->reg_flags & RegRex) ? 8 : 0)); | |
4184 | } | |
4185 | ||
4186 | /* Case 2: 3 operand insn with ImmExt that places the | |
4187 | opcode_extension as an immediate argument. This is used for | |
4188 | all of the varients of comparison that supplies the appropriate | |
4189 | value as part of the instruction. */ | |
4190 | else if ((i.types[0].bitfield.regxmm | |
4191 | || operand_type_check (i.types[0], anymem)) | |
4192 | && i.types[1].bitfield.regxmm != 0 | |
4193 | && i.types[2].bitfield.regxmm != 0 | |
4194 | && operand_type_check (i.types[3], imm) != 0) | |
4195 | { | |
4196 | /* clear the arguments that are stored in drex */ | |
4197 | UINTS_CLEAR (i.types[2]); | |
4198 | i.reg_operands--; | |
4199 | ||
4200 | /* Specify the modrm encoding and remember the register | |
4201 | including the high bit normally stored in the REX byte. */ | |
4202 | i.drex.modrm_reg = 1; | |
4203 | i.drex.modrm_regmem = 0; | |
4204 | i.drex.reg = (i.op[2].regs->reg_num | |
4205 | + ((i.op[2].regs->reg_flags & RegRex) ? 8 : 0)); | |
4206 | } | |
4207 | ||
4208 | else | |
4209 | as_bad (_("Incorrect operands for the '%s' instruction"), | |
4210 | i.tm.name); | |
4211 | } | |
4212 | ||
4213 | else if (i.tm.opcode_modifier.drex | |
4214 | || i.tm.opcode_modifier.drexv | |
4215 | || i.tm.opcode_modifier.drexc) | |
4216 | as_bad (_("Internal error for the '%s' instruction"), i.tm.name); | |
4217 | } | |
4218 | ||
29b0f896 | 4219 | static int |
e3bb37b5 | 4220 | process_operands (void) |
29b0f896 AM |
4221 | { |
4222 | /* Default segment register this instruction will use for memory | |
4223 | accesses. 0 means unknown. This is only for optimizing out | |
4224 | unnecessary segment overrides. */ | |
4225 | const seg_entry *default_seg = 0; | |
4226 | ||
85f10a01 MM |
4227 | /* Handle all of the DREX munging that SSE5 needs. */ |
4228 | if (i.tm.opcode_modifier.drex | |
4229 | || i.tm.opcode_modifier.drexv | |
4230 | || i.tm.opcode_modifier.drexc) | |
4231 | process_drex (); | |
4232 | ||
e2ec9d29 | 4233 | if (i.tm.opcode_modifier.firstxmm0) |
29b0f896 | 4234 | { |
e2ec9d29 L |
4235 | /* The first operand is implicit and must be xmm0. */ |
4236 | assert (i.reg_operands && UINTS_EQUAL (i.types[0], regxmm)); | |
4237 | if (i.op[0].regs->reg_num != 0) | |
4238 | { | |
4239 | if (intel_syntax) | |
4240 | as_bad (_("the last operand of `%s' must be `%sxmm0'"), | |
4241 | i.tm.name, register_prefix); | |
4242 | else | |
4243 | as_bad (_("the first operand of `%s' must be `%sxmm0'"), | |
4244 | i.tm.name, register_prefix); | |
4245 | return 0; | |
4246 | } | |
4247 | i.op[0] = i.op[1]; | |
4248 | i.op[1] = i.op[2]; | |
4249 | i.types[0] = i.types[1]; | |
4250 | i.types[1] = i.types[2]; | |
4251 | i.operands--; | |
4252 | i.reg_operands--; | |
4253 | ||
4254 | /* We need to adjust fields in i.tm since they are used by | |
4255 | build_modrm_byte. */ | |
4256 | i.tm.operand_types [0] = i.tm.operand_types [1]; | |
4257 | i.tm.operand_types [1] = i.tm.operand_types [2]; | |
4258 | i.tm.operands--; | |
4259 | } | |
4260 | else if (i.tm.opcode_modifier.regkludge) | |
4261 | { | |
4262 | /* The imul $imm, %reg instruction is converted into | |
4263 | imul $imm, %reg, %reg, and the clr %reg instruction | |
4264 | is converted into xor %reg, %reg. */ | |
4265 | ||
4266 | unsigned int first_reg_op; | |
4267 | ||
4268 | if (operand_type_check (i.types[0], reg)) | |
4269 | first_reg_op = 0; | |
4270 | else | |
4271 | first_reg_op = 1; | |
4272 | /* Pretend we saw the extra register operand. */ | |
4273 | assert (i.reg_operands == 1 | |
4274 | && i.op[first_reg_op + 1].regs == 0); | |
4275 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; | |
4276 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
4277 | i.operands++; | |
4278 | i.reg_operands++; | |
29b0f896 AM |
4279 | } |
4280 | ||
40fb9820 | 4281 | if (i.tm.opcode_modifier.shortform) |
29b0f896 | 4282 | { |
40fb9820 L |
4283 | if (i.types[0].bitfield.sreg2 |
4284 | || i.types[0].bitfield.sreg3) | |
29b0f896 | 4285 | { |
4eed87de AM |
4286 | if (i.tm.base_opcode == POP_SEG_SHORT |
4287 | && i.op[0].regs->reg_num == 1) | |
29b0f896 | 4288 | { |
4eed87de AM |
4289 | as_bad (_("you can't `pop %%cs'")); |
4290 | return 0; | |
29b0f896 | 4291 | } |
4eed87de AM |
4292 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); |
4293 | if ((i.op[0].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4294 | i.rex |= REX_B; |
4eed87de AM |
4295 | } |
4296 | else | |
4297 | { | |
85f10a01 MM |
4298 | /* The register or float register operand is in operand |
4299 | 0 or 1. */ | |
40fb9820 L |
4300 | unsigned int op; |
4301 | ||
4302 | if (i.types[0].bitfield.floatreg | |
4303 | || operand_type_check (i.types[0], reg)) | |
4304 | op = 0; | |
4305 | else | |
4306 | op = 1; | |
4eed87de AM |
4307 | /* Register goes in low 3 bits of opcode. */ |
4308 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
4309 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4310 | i.rex |= REX_B; |
40fb9820 | 4311 | if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 | 4312 | { |
4eed87de AM |
4313 | /* Warn about some common errors, but press on regardless. |
4314 | The first case can be generated by gcc (<= 2.8.1). */ | |
4315 | if (i.operands == 2) | |
4316 | { | |
4317 | /* Reversed arguments on faddp, fsubp, etc. */ | |
a540244d L |
4318 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, |
4319 | register_prefix, i.op[1].regs->reg_name, | |
4320 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de AM |
4321 | } |
4322 | else | |
4323 | { | |
4324 | /* Extraneous `l' suffix on fp insn. */ | |
a540244d L |
4325 | as_warn (_("translating to `%s %s%s'"), i.tm.name, |
4326 | register_prefix, i.op[0].regs->reg_name); | |
4eed87de | 4327 | } |
29b0f896 AM |
4328 | } |
4329 | } | |
4330 | } | |
40fb9820 | 4331 | else if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
4332 | { |
4333 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
4334 | must be put into the modrm byte). Now, we make the modrm and |
4335 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
4336 | |
4337 | default_seg = build_modrm_byte (); | |
4338 | } | |
8a2ed489 | 4339 | else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32) |
29b0f896 AM |
4340 | { |
4341 | default_seg = &ds; | |
4342 | } | |
40fb9820 | 4343 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
4344 | { |
4345 | /* For the string instructions that allow a segment override | |
4346 | on one of their operands, the default segment is ds. */ | |
4347 | default_seg = &ds; | |
4348 | } | |
4349 | ||
75178d9d L |
4350 | if (i.tm.base_opcode == 0x8d /* lea */ |
4351 | && i.seg[0] | |
4352 | && !quiet_warnings) | |
30123838 | 4353 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); |
52271982 AM |
4354 | |
4355 | /* If a segment was explicitly specified, and the specified segment | |
4356 | is not the default, use an opcode prefix to select it. If we | |
4357 | never figured out what the default segment is, then default_seg | |
4358 | will be zero at this point, and the specified segment prefix will | |
4359 | always be used. */ | |
29b0f896 AM |
4360 | if ((i.seg[0]) && (i.seg[0] != default_seg)) |
4361 | { | |
4362 | if (!add_prefix (i.seg[0]->seg_prefix)) | |
4363 | return 0; | |
4364 | } | |
4365 | return 1; | |
4366 | } | |
4367 | ||
4368 | static const seg_entry * | |
e3bb37b5 | 4369 | build_modrm_byte (void) |
29b0f896 AM |
4370 | { |
4371 | const seg_entry *default_seg = 0; | |
4372 | ||
85f10a01 MM |
4373 | /* SSE5 4 operand instructions are encoded in such a way that one of |
4374 | the inputs must match the destination register. Process_drex hides | |
4375 | the 3rd argument in the drex field, so that by the time we get | |
4376 | here, it looks to GAS as if this is a 2 operand instruction. */ | |
4377 | if ((i.tm.opcode_modifier.drex | |
4378 | || i.tm.opcode_modifier.drexv | |
b5016f89 | 4379 | || i.tm.opcode_modifier.drexc) |
85f10a01 MM |
4380 | && i.reg_operands == 2) |
4381 | { | |
4382 | const reg_entry *reg = i.op[i.drex.modrm_reg].regs; | |
4383 | const reg_entry *regmem = i.op[i.drex.modrm_regmem].regs; | |
4384 | ||
4385 | i.rm.reg = reg->reg_num; | |
4386 | i.rm.regmem = regmem->reg_num; | |
4387 | i.rm.mode = 3; | |
4388 | if ((reg->reg_flags & RegRex) != 0) | |
4389 | i.rex |= REX_R; | |
4390 | if ((regmem->reg_flags & RegRex) != 0) | |
4391 | i.rex |= REX_B; | |
4392 | } | |
4393 | ||
29b0f896 AM |
4394 | /* i.reg_operands MUST be the number of real register operands; |
4395 | implicit registers do not count. */ | |
85f10a01 | 4396 | else if (i.reg_operands == 2) |
29b0f896 AM |
4397 | { |
4398 | unsigned int source, dest; | |
cab737b9 L |
4399 | |
4400 | switch (i.operands) | |
4401 | { | |
4402 | case 2: | |
4403 | source = 0; | |
4404 | break; | |
4405 | case 3: | |
c81128dc L |
4406 | /* When there are 3 operands, one of them may be immediate, |
4407 | which may be the first or the last operand. Otherwise, | |
4408 | the first operand must be shift count register (cl). */ | |
4409 | assert (i.imm_operands == 1 | |
4410 | || (i.imm_operands == 0 | |
40fb9820 L |
4411 | && i.types[0].bitfield.shiftcount)); |
4412 | if (operand_type_check (i.types[0], imm) | |
4413 | || i.types[0].bitfield.shiftcount) | |
4414 | source = 1; | |
4415 | else | |
4416 | source = 0; | |
cab737b9 L |
4417 | break; |
4418 | case 4: | |
368d64cc L |
4419 | /* When there are 4 operands, the first two must be 8bit |
4420 | immediate operands. The source operand will be the 3rd | |
4421 | one. */ | |
cab737b9 | 4422 | assert (i.imm_operands == 2 |
368d64cc L |
4423 | && i.types[0].bitfield.imm8 |
4424 | && i.types[1].bitfield.imm8); | |
cab737b9 L |
4425 | source = 2; |
4426 | break; | |
4427 | default: | |
4428 | abort (); | |
4429 | } | |
4430 | ||
29b0f896 AM |
4431 | dest = source + 1; |
4432 | ||
4433 | i.rm.mode = 3; | |
4434 | /* One of the register operands will be encoded in the i.tm.reg | |
4435 | field, the other in the combined i.tm.mode and i.tm.regmem | |
4436 | fields. If no form of this instruction supports a memory | |
4437 | destination operand, then we assume the source operand may | |
4438 | sometimes be a memory operand and so we need to store the | |
4439 | destination in the i.rm.reg field. */ | |
40fb9820 L |
4440 | if (!i.tm.operand_types[dest].bitfield.regmem |
4441 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) | |
29b0f896 AM |
4442 | { |
4443 | i.rm.reg = i.op[dest].regs->reg_num; | |
4444 | i.rm.regmem = i.op[source].regs->reg_num; | |
4445 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4446 | i.rex |= REX_R; |
29b0f896 | 4447 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 4448 | i.rex |= REX_B; |
29b0f896 AM |
4449 | } |
4450 | else | |
4451 | { | |
4452 | i.rm.reg = i.op[source].regs->reg_num; | |
4453 | i.rm.regmem = i.op[dest].regs->reg_num; | |
4454 | if ((i.op[dest].regs->reg_flags & RegRex) != 0) | |
161a04f6 | 4455 | i.rex |= REX_B; |
29b0f896 | 4456 | if ((i.op[source].regs->reg_flags & RegRex) != 0) |
161a04f6 | 4457 | i.rex |= REX_R; |
29b0f896 | 4458 | } |
161a04f6 | 4459 | if (flag_code != CODE_64BIT && (i.rex & (REX_R | REX_B))) |
c4a530c5 | 4460 | { |
40fb9820 L |
4461 | if (!i.types[0].bitfield.control |
4462 | && !i.types[1].bitfield.control) | |
c4a530c5 | 4463 | abort (); |
161a04f6 | 4464 | i.rex &= ~(REX_R | REX_B); |
c4a530c5 JB |
4465 | add_prefix (LOCK_PREFIX_OPCODE); |
4466 | } | |
29b0f896 AM |
4467 | } |
4468 | else | |
4469 | { /* If it's not 2 reg operands... */ | |
4470 | if (i.mem_operands) | |
4471 | { | |
4472 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 4473 | unsigned int op; |
4eed87de | 4474 | |
85f10a01 MM |
4475 | /* This has been precalculated for SSE5 instructions |
4476 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
4477 | if (i.tm.opcode_modifier.drex |
4478 | || i.tm.opcode_modifier.drexv | |
4479 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
4480 | op = i.drex.modrm_regmem; |
4481 | else | |
4482 | { | |
c0209578 L |
4483 | for (op = 0; op < i.operands; op++) |
4484 | if (operand_type_check (i.types[op], anymem)) | |
4485 | break; | |
4486 | assert (op < i.operands); | |
85f10a01 | 4487 | } |
29b0f896 AM |
4488 | |
4489 | default_seg = &ds; | |
4490 | ||
4491 | if (i.base_reg == 0) | |
4492 | { | |
4493 | i.rm.mode = 0; | |
4494 | if (!i.disp_operands) | |
4495 | fake_zero_displacement = 1; | |
4496 | if (i.index_reg == 0) | |
4497 | { | |
4498 | /* Operand is just <disp> */ | |
20f0a1fc | 4499 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
4500 | { |
4501 | /* 64bit mode overwrites the 32bit absolute | |
4502 | addressing by RIP relative addressing and | |
4503 | absolute addressing is encoded by one of the | |
4504 | redundant SIB forms. */ | |
4505 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
4506 | i.sib.base = NO_BASE_REGISTER; | |
4507 | i.sib.index = NO_INDEX_REGISTER; | |
fc225355 | 4508 | i.types[op] = ((i.prefix[ADDR_PREFIX] == 0) |
40fb9820 | 4509 | ? disp32s : disp32); |
20f0a1fc | 4510 | } |
fc225355 L |
4511 | else if ((flag_code == CODE_16BIT) |
4512 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
4513 | { |
4514 | i.rm.regmem = NO_BASE_REGISTER_16; | |
40fb9820 | 4515 | i.types[op] = disp16; |
20f0a1fc NC |
4516 | } |
4517 | else | |
4518 | { | |
4519 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 | 4520 | i.types[op] = disp32; |
29b0f896 AM |
4521 | } |
4522 | } | |
4523 | else /* !i.base_reg && i.index_reg */ | |
4524 | { | |
db51cc60 L |
4525 | if (i.index_reg->reg_num == RegEiz |
4526 | || i.index_reg->reg_num == RegRiz) | |
4527 | i.sib.index = NO_INDEX_REGISTER; | |
4528 | else | |
4529 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
4530 | i.sib.base = NO_BASE_REGISTER; |
4531 | i.sib.scale = i.log2_scale_factor; | |
4532 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
40fb9820 L |
4533 | i.types[op].bitfield.disp8 = 0; |
4534 | i.types[op].bitfield.disp16 = 0; | |
4535 | i.types[op].bitfield.disp64 = 0; | |
29b0f896 | 4536 | if (flag_code != CODE_64BIT) |
40fb9820 L |
4537 | { |
4538 | /* Must be 32 bit */ | |
4539 | i.types[op].bitfield.disp32 = 1; | |
4540 | i.types[op].bitfield.disp32s = 0; | |
4541 | } | |
29b0f896 | 4542 | else |
40fb9820 L |
4543 | { |
4544 | i.types[op].bitfield.disp32 = 0; | |
4545 | i.types[op].bitfield.disp32s = 1; | |
4546 | } | |
29b0f896 | 4547 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 4548 | i.rex |= REX_X; |
29b0f896 AM |
4549 | } |
4550 | } | |
4551 | /* RIP addressing for 64bit mode. */ | |
9a04903e JB |
4552 | else if (i.base_reg->reg_num == RegRip || |
4553 | i.base_reg->reg_num == RegEip) | |
29b0f896 AM |
4554 | { |
4555 | i.rm.regmem = NO_BASE_REGISTER; | |
40fb9820 L |
4556 | i.types[op].bitfield.disp8 = 0; |
4557 | i.types[op].bitfield.disp16 = 0; | |
4558 | i.types[op].bitfield.disp32 = 0; | |
4559 | i.types[op].bitfield.disp32s = 1; | |
4560 | i.types[op].bitfield.disp64 = 0; | |
71903a11 | 4561 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
4562 | if (! i.disp_operands) |
4563 | fake_zero_displacement = 1; | |
29b0f896 | 4564 | } |
40fb9820 | 4565 | else if (i.base_reg->reg_type.bitfield.reg16) |
29b0f896 AM |
4566 | { |
4567 | switch (i.base_reg->reg_num) | |
4568 | { | |
4569 | case 3: /* (%bx) */ | |
4570 | if (i.index_reg == 0) | |
4571 | i.rm.regmem = 7; | |
4572 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
4573 | i.rm.regmem = i.index_reg->reg_num - 6; | |
4574 | break; | |
4575 | case 5: /* (%bp) */ | |
4576 | default_seg = &ss; | |
4577 | if (i.index_reg == 0) | |
4578 | { | |
4579 | i.rm.regmem = 6; | |
40fb9820 | 4580 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
4581 | { |
4582 | /* fake (%bp) into 0(%bp) */ | |
40fb9820 | 4583 | i.types[op].bitfield.disp8 = 1; |
252b5132 | 4584 | fake_zero_displacement = 1; |
29b0f896 AM |
4585 | } |
4586 | } | |
4587 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
4588 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
4589 | break; | |
4590 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
4591 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
4592 | } | |
4593 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
4594 | } | |
4595 | else /* i.base_reg and 32/64 bit mode */ | |
4596 | { | |
4597 | if (flag_code == CODE_64BIT | |
40fb9820 L |
4598 | && operand_type_check (i.types[op], disp)) |
4599 | { | |
4600 | i386_operand_type temp; | |
c6fb90c8 | 4601 | UINTS_CLEAR (temp); |
40fb9820 L |
4602 | temp.bitfield.disp8 = i.types[op].bitfield.disp8; |
4603 | i.types[op] = temp; | |
4604 | if (i.prefix[ADDR_PREFIX] == 0) | |
4605 | i.types[op].bitfield.disp32s = 1; | |
4606 | else | |
4607 | i.types[op].bitfield.disp32 = 1; | |
4608 | } | |
20f0a1fc | 4609 | |
29b0f896 AM |
4610 | i.rm.regmem = i.base_reg->reg_num; |
4611 | if ((i.base_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 4612 | i.rex |= REX_B; |
29b0f896 AM |
4613 | i.sib.base = i.base_reg->reg_num; |
4614 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
4615 | complications. */ | |
4616 | if ((i.base_reg->reg_num & 7) == EBP_REG_NUM) | |
4617 | { | |
4618 | default_seg = &ss; | |
4619 | if (i.disp_operands == 0) | |
4620 | { | |
4621 | fake_zero_displacement = 1; | |
40fb9820 | 4622 | i.types[op].bitfield.disp8 = 1; |
29b0f896 AM |
4623 | } |
4624 | } | |
4625 | else if (i.base_reg->reg_num == ESP_REG_NUM) | |
4626 | { | |
4627 | default_seg = &ss; | |
4628 | } | |
4629 | i.sib.scale = i.log2_scale_factor; | |
4630 | if (i.index_reg == 0) | |
4631 | { | |
4632 | /* <disp>(%esp) becomes two byte modrm with no index | |
4633 | register. We've already stored the code for esp | |
4634 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
4635 | Any base register besides %esp will not use the | |
4636 | extra modrm byte. */ | |
4637 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 AM |
4638 | } |
4639 | else | |
4640 | { | |
db51cc60 L |
4641 | if (i.index_reg->reg_num == RegEiz |
4642 | || i.index_reg->reg_num == RegRiz) | |
4643 | i.sib.index = NO_INDEX_REGISTER; | |
4644 | else | |
4645 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
4646 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
4647 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 4648 | i.rex |= REX_X; |
29b0f896 | 4649 | } |
67a4f2b7 AO |
4650 | |
4651 | if (i.disp_operands | |
4652 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
4653 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
4654 | i.rm.mode = 0; | |
4655 | else | |
4656 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
29b0f896 | 4657 | } |
252b5132 | 4658 | |
29b0f896 AM |
4659 | if (fake_zero_displacement) |
4660 | { | |
4661 | /* Fakes a zero displacement assuming that i.types[op] | |
4662 | holds the correct displacement size. */ | |
4663 | expressionS *exp; | |
4664 | ||
4665 | assert (i.op[op].disps == 0); | |
4666 | exp = &disp_expressions[i.disp_operands++]; | |
4667 | i.op[op].disps = exp; | |
4668 | exp->X_op = O_constant; | |
4669 | exp->X_add_number = 0; | |
4670 | exp->X_add_symbol = (symbolS *) 0; | |
4671 | exp->X_op_symbol = (symbolS *) 0; | |
4672 | } | |
4673 | } | |
252b5132 | 4674 | |
29b0f896 AM |
4675 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
4676 | (if any) based on i.tm.extension_opcode. Again, we must be | |
4677 | careful to make sure that segment/control/debug/test/MMX | |
4678 | registers are coded into the i.rm.reg field. */ | |
4679 | if (i.reg_operands) | |
4680 | { | |
99018f42 L |
4681 | unsigned int op; |
4682 | ||
85f10a01 MM |
4683 | /* This has been precalculated for SSE5 instructions |
4684 | that have a DREX field earlier in process_drex. */ | |
b5016f89 L |
4685 | if (i.tm.opcode_modifier.drex |
4686 | || i.tm.opcode_modifier.drexv | |
4687 | || i.tm.opcode_modifier.drexc) | |
85f10a01 MM |
4688 | { |
4689 | op = i.drex.modrm_reg; | |
4690 | i.rm.reg = i.op[op].regs->reg_num; | |
4691 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
4692 | i.rex |= REX_R; | |
4693 | } | |
4694 | else | |
4695 | { | |
c0209578 L |
4696 | for (op = 0; op < i.operands; op++) |
4697 | if (i.types[op].bitfield.reg8 | |
4698 | || i.types[op].bitfield.reg16 | |
4699 | || i.types[op].bitfield.reg32 | |
4700 | || i.types[op].bitfield.reg64 | |
4701 | || i.types[op].bitfield.regmmx | |
4702 | || i.types[op].bitfield.regxmm | |
4703 | || i.types[op].bitfield.sreg2 | |
4704 | || i.types[op].bitfield.sreg3 | |
4705 | || i.types[op].bitfield.control | |
4706 | || i.types[op].bitfield.debug | |
4707 | || i.types[op].bitfield.test) | |
4708 | break; | |
4709 | ||
4710 | assert (op < i.operands); | |
99018f42 | 4711 | |
85f10a01 MM |
4712 | /* If there is an extension opcode to put here, the |
4713 | register number must be put into the regmem field. */ | |
c0209578 L |
4714 | if (i.tm.extension_opcode != None) |
4715 | { | |
4716 | i.rm.regmem = i.op[op].regs->reg_num; | |
4717 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
4718 | i.rex |= REX_B; | |
4719 | } | |
4720 | else | |
4721 | { | |
4722 | i.rm.reg = i.op[op].regs->reg_num; | |
4723 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
4724 | i.rex |= REX_R; | |
4725 | } | |
85f10a01 | 4726 | } |
252b5132 | 4727 | |
29b0f896 AM |
4728 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
4729 | must set it to 3 to indicate this is a register operand | |
4730 | in the regmem field. */ | |
4731 | if (!i.mem_operands) | |
4732 | i.rm.mode = 3; | |
4733 | } | |
252b5132 | 4734 | |
29b0f896 | 4735 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
85f10a01 MM |
4736 | if (i.tm.extension_opcode != None |
4737 | && !(i.tm.opcode_modifier.drex | |
4738 | || i.tm.opcode_modifier.drexv | |
4739 | || i.tm.opcode_modifier.drexc)) | |
29b0f896 AM |
4740 | i.rm.reg = i.tm.extension_opcode; |
4741 | } | |
4742 | return default_seg; | |
4743 | } | |
252b5132 | 4744 | |
29b0f896 | 4745 | static void |
e3bb37b5 | 4746 | output_branch (void) |
29b0f896 AM |
4747 | { |
4748 | char *p; | |
4749 | int code16; | |
4750 | int prefix; | |
4751 | relax_substateT subtype; | |
4752 | symbolS *sym; | |
4753 | offsetT off; | |
4754 | ||
4755 | code16 = 0; | |
4756 | if (flag_code == CODE_16BIT) | |
4757 | code16 = CODE16; | |
4758 | ||
4759 | prefix = 0; | |
4760 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 4761 | { |
29b0f896 AM |
4762 | prefix = 1; |
4763 | i.prefixes -= 1; | |
4764 | code16 ^= CODE16; | |
252b5132 | 4765 | } |
29b0f896 AM |
4766 | /* Pentium4 branch hints. */ |
4767 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
4768 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 4769 | { |
29b0f896 AM |
4770 | prefix++; |
4771 | i.prefixes--; | |
4772 | } | |
4773 | if (i.prefix[REX_PREFIX] != 0) | |
4774 | { | |
4775 | prefix++; | |
4776 | i.prefixes--; | |
2f66722d AM |
4777 | } |
4778 | ||
29b0f896 AM |
4779 | if (i.prefixes != 0 && !intel_syntax) |
4780 | as_warn (_("skipping prefixes on this instruction")); | |
4781 | ||
4782 | /* It's always a symbol; End frag & setup for relax. | |
4783 | Make sure there is enough room in this frag for the largest | |
4784 | instruction we may generate in md_convert_frag. This is 2 | |
4785 | bytes for the opcode and room for the prefix and largest | |
4786 | displacement. */ | |
4787 | frag_grow (prefix + 2 + 4); | |
4788 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
4789 | p = frag_more (prefix + 1); | |
4790 | if (i.prefix[DATA_PREFIX] != 0) | |
4791 | *p++ = DATA_PREFIX_OPCODE; | |
4792 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
4793 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
4794 | *p++ = i.prefix[SEG_PREFIX]; | |
4795 | if (i.prefix[REX_PREFIX] != 0) | |
4796 | *p++ = i.prefix[REX_PREFIX]; | |
4797 | *p = i.tm.base_opcode; | |
4798 | ||
4799 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
4800 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, SMALL); | |
40fb9820 | 4801 | else if (cpu_arch_flags.bitfield.cpui386) |
29b0f896 AM |
4802 | subtype = ENCODE_RELAX_STATE (COND_JUMP, SMALL); |
4803 | else | |
4804 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, SMALL); | |
4805 | subtype |= code16; | |
3e73aa7c | 4806 | |
29b0f896 AM |
4807 | sym = i.op[0].disps->X_add_symbol; |
4808 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 4809 | |
29b0f896 AM |
4810 | if (i.op[0].disps->X_op != O_constant |
4811 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 4812 | { |
29b0f896 AM |
4813 | /* Handle complex expressions. */ |
4814 | sym = make_expr_symbol (i.op[0].disps); | |
4815 | off = 0; | |
4816 | } | |
3e73aa7c | 4817 | |
29b0f896 AM |
4818 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
4819 | Pass reloc in fr_var. */ | |
4820 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); | |
4821 | } | |
3e73aa7c | 4822 | |
29b0f896 | 4823 | static void |
e3bb37b5 | 4824 | output_jump (void) |
29b0f896 AM |
4825 | { |
4826 | char *p; | |
4827 | int size; | |
3e02c1cc | 4828 | fixS *fixP; |
29b0f896 | 4829 | |
40fb9820 | 4830 | if (i.tm.opcode_modifier.jumpbyte) |
29b0f896 AM |
4831 | { |
4832 | /* This is a loop or jecxz type instruction. */ | |
4833 | size = 1; | |
4834 | if (i.prefix[ADDR_PREFIX] != 0) | |
4835 | { | |
4836 | FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE); | |
4837 | i.prefixes -= 1; | |
4838 | } | |
4839 | /* Pentium4 branch hints. */ | |
4840 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
4841 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
4842 | { | |
4843 | FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]); | |
4844 | i.prefixes--; | |
3e73aa7c JH |
4845 | } |
4846 | } | |
29b0f896 AM |
4847 | else |
4848 | { | |
4849 | int code16; | |
3e73aa7c | 4850 | |
29b0f896 AM |
4851 | code16 = 0; |
4852 | if (flag_code == CODE_16BIT) | |
4853 | code16 = CODE16; | |
3e73aa7c | 4854 | |
29b0f896 AM |
4855 | if (i.prefix[DATA_PREFIX] != 0) |
4856 | { | |
4857 | FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE); | |
4858 | i.prefixes -= 1; | |
4859 | code16 ^= CODE16; | |
4860 | } | |
252b5132 | 4861 | |
29b0f896 AM |
4862 | size = 4; |
4863 | if (code16) | |
4864 | size = 2; | |
4865 | } | |
9fcc94b6 | 4866 | |
29b0f896 AM |
4867 | if (i.prefix[REX_PREFIX] != 0) |
4868 | { | |
4869 | FRAG_APPEND_1_CHAR (i.prefix[REX_PREFIX]); | |
4870 | i.prefixes -= 1; | |
4871 | } | |
252b5132 | 4872 | |
29b0f896 AM |
4873 | if (i.prefixes != 0 && !intel_syntax) |
4874 | as_warn (_("skipping prefixes on this instruction")); | |
e0890092 | 4875 | |
29b0f896 AM |
4876 | p = frag_more (1 + size); |
4877 | *p++ = i.tm.base_opcode; | |
e0890092 | 4878 | |
3e02c1cc AM |
4879 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
4880 | i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0])); | |
4881 | ||
4882 | /* All jumps handled here are signed, but don't use a signed limit | |
4883 | check for 32 and 16 bit jumps as we want to allow wrap around at | |
4884 | 4G and 64k respectively. */ | |
4885 | if (size == 1) | |
4886 | fixP->fx_signed = 1; | |
29b0f896 | 4887 | } |
e0890092 | 4888 | |
29b0f896 | 4889 | static void |
e3bb37b5 | 4890 | output_interseg_jump (void) |
29b0f896 AM |
4891 | { |
4892 | char *p; | |
4893 | int size; | |
4894 | int prefix; | |
4895 | int code16; | |
252b5132 | 4896 | |
29b0f896 AM |
4897 | code16 = 0; |
4898 | if (flag_code == CODE_16BIT) | |
4899 | code16 = CODE16; | |
a217f122 | 4900 | |
29b0f896 AM |
4901 | prefix = 0; |
4902 | if (i.prefix[DATA_PREFIX] != 0) | |
4903 | { | |
4904 | prefix = 1; | |
4905 | i.prefixes -= 1; | |
4906 | code16 ^= CODE16; | |
4907 | } | |
4908 | if (i.prefix[REX_PREFIX] != 0) | |
4909 | { | |
4910 | prefix++; | |
4911 | i.prefixes -= 1; | |
4912 | } | |
252b5132 | 4913 | |
29b0f896 AM |
4914 | size = 4; |
4915 | if (code16) | |
4916 | size = 2; | |
252b5132 | 4917 | |
29b0f896 AM |
4918 | if (i.prefixes != 0 && !intel_syntax) |
4919 | as_warn (_("skipping prefixes on this instruction")); | |
252b5132 | 4920 | |
29b0f896 AM |
4921 | /* 1 opcode; 2 segment; offset */ |
4922 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 4923 | |
29b0f896 AM |
4924 | if (i.prefix[DATA_PREFIX] != 0) |
4925 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 4926 | |
29b0f896 AM |
4927 | if (i.prefix[REX_PREFIX] != 0) |
4928 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 4929 | |
29b0f896 AM |
4930 | *p++ = i.tm.base_opcode; |
4931 | if (i.op[1].imms->X_op == O_constant) | |
4932 | { | |
4933 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 4934 | |
29b0f896 AM |
4935 | if (size == 2 |
4936 | && !fits_in_unsigned_word (n) | |
4937 | && !fits_in_signed_word (n)) | |
4938 | { | |
4939 | as_bad (_("16-bit jump out of range")); | |
4940 | return; | |
4941 | } | |
4942 | md_number_to_chars (p, n, size); | |
4943 | } | |
4944 | else | |
4945 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
4946 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); | |
4947 | if (i.op[0].imms->X_op != O_constant) | |
4948 | as_bad (_("can't handle non absolute segment in `%s'"), | |
4949 | i.tm.name); | |
4950 | md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2); | |
4951 | } | |
a217f122 | 4952 | |
29b0f896 | 4953 | static void |
e3bb37b5 | 4954 | output_insn (void) |
29b0f896 | 4955 | { |
2bbd9c25 JJ |
4956 | fragS *insn_start_frag; |
4957 | offsetT insn_start_off; | |
4958 | ||
29b0f896 AM |
4959 | /* Tie dwarf2 debug info to the address at the start of the insn. |
4960 | We can't do this after the insn has been output as the current | |
4961 | frag may have been closed off. eg. by frag_var. */ | |
4962 | dwarf2_emit_insn (0); | |
4963 | ||
2bbd9c25 JJ |
4964 | insn_start_frag = frag_now; |
4965 | insn_start_off = frag_now_fix (); | |
4966 | ||
29b0f896 | 4967 | /* Output jumps. */ |
40fb9820 | 4968 | if (i.tm.opcode_modifier.jump) |
29b0f896 | 4969 | output_branch (); |
40fb9820 L |
4970 | else if (i.tm.opcode_modifier.jumpbyte |
4971 | || i.tm.opcode_modifier.jumpdword) | |
29b0f896 | 4972 | output_jump (); |
40fb9820 | 4973 | else if (i.tm.opcode_modifier.jumpintersegment) |
29b0f896 AM |
4974 | output_interseg_jump (); |
4975 | else | |
4976 | { | |
4977 | /* Output normal instructions here. */ | |
4978 | char *p; | |
4979 | unsigned char *q; | |
331d2d0d | 4980 | unsigned int prefix; |
4dffcebc L |
4981 | |
4982 | switch (i.tm.opcode_length) | |
bc4bd9ab | 4983 | { |
4dffcebc | 4984 | case 3: |
331d2d0d L |
4985 | if (i.tm.base_opcode & 0xff000000) |
4986 | { | |
4987 | prefix = (i.tm.base_opcode >> 24) & 0xff; | |
4988 | goto check_prefix; | |
4989 | } | |
4dffcebc L |
4990 | break; |
4991 | case 2: | |
4992 | if ((i.tm.base_opcode & 0xff0000) != 0) | |
bc4bd9ab | 4993 | { |
4dffcebc L |
4994 | prefix = (i.tm.base_opcode >> 16) & 0xff; |
4995 | if (i.tm.cpu_flags.bitfield.cpupadlock) | |
4996 | { | |
4997 | check_prefix: | |
4998 | if (prefix != REPE_PREFIX_OPCODE | |
4999 | || i.prefix[LOCKREP_PREFIX] != REPE_PREFIX_OPCODE) | |
5000 | add_prefix (prefix); | |
5001 | } | |
5002 | else | |
bc4bd9ab MK |
5003 | add_prefix (prefix); |
5004 | } | |
4dffcebc L |
5005 | break; |
5006 | case 1: | |
5007 | break; | |
5008 | default: | |
5009 | abort (); | |
0f10071e | 5010 | } |
252b5132 | 5011 | |
29b0f896 AM |
5012 | /* The prefix bytes. */ |
5013 | for (q = i.prefix; | |
5014 | q < i.prefix + sizeof (i.prefix) / sizeof (i.prefix[0]); | |
5015 | q++) | |
5016 | { | |
5017 | if (*q) | |
5018 | { | |
5019 | p = frag_more (1); | |
5020 | md_number_to_chars (p, (valueT) *q, 1); | |
5021 | } | |
5022 | } | |
252b5132 | 5023 | |
29b0f896 | 5024 | /* Now the opcode; be careful about word order here! */ |
4dffcebc | 5025 | if (i.tm.opcode_length == 1) |
29b0f896 AM |
5026 | { |
5027 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
5028 | } | |
5029 | else | |
5030 | { | |
4dffcebc | 5031 | switch (i.tm.opcode_length) |
331d2d0d | 5032 | { |
4dffcebc | 5033 | case 3: |
331d2d0d L |
5034 | p = frag_more (3); |
5035 | *p++ = (i.tm.base_opcode >> 16) & 0xff; | |
4dffcebc L |
5036 | break; |
5037 | case 2: | |
5038 | p = frag_more (2); | |
5039 | break; | |
5040 | default: | |
5041 | abort (); | |
5042 | break; | |
331d2d0d | 5043 | } |
0f10071e | 5044 | |
29b0f896 AM |
5045 | /* Put out high byte first: can't use md_number_to_chars! */ |
5046 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
5047 | *p = i.tm.base_opcode & 0xff; | |
85f10a01 MM |
5048 | |
5049 | /* On SSE5, encode the OC1 bit in the DREX field if this | |
5050 | encoding has multiple formats. */ | |
5051 | if (i.tm.opcode_modifier.drex | |
5052 | && i.tm.opcode_modifier.drexv | |
5053 | && DREX_OC1 (i.tm.extension_opcode)) | |
5054 | *p |= DREX_OC1_MASK; | |
29b0f896 | 5055 | } |
3e73aa7c | 5056 | |
29b0f896 | 5057 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 5058 | if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
5059 | { |
5060 | p = frag_more (1); | |
5061 | md_number_to_chars (p, | |
5062 | (valueT) (i.rm.regmem << 0 | |
5063 | | i.rm.reg << 3 | |
5064 | | i.rm.mode << 6), | |
5065 | 1); | |
5066 | /* If i.rm.regmem == ESP (4) | |
5067 | && i.rm.mode != (Register mode) | |
5068 | && not 16 bit | |
5069 | ==> need second modrm byte. */ | |
5070 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
5071 | && i.rm.mode != 3 | |
40fb9820 | 5072 | && !(i.base_reg && i.base_reg->reg_type.bitfield.reg16)) |
29b0f896 AM |
5073 | { |
5074 | p = frag_more (1); | |
5075 | md_number_to_chars (p, | |
5076 | (valueT) (i.sib.base << 0 | |
5077 | | i.sib.index << 3 | |
5078 | | i.sib.scale << 6), | |
5079 | 1); | |
5080 | } | |
5081 | } | |
3e73aa7c | 5082 | |
85f10a01 MM |
5083 | /* Write the DREX byte if needed. */ |
5084 | if (i.tm.opcode_modifier.drex || i.tm.opcode_modifier.drexc) | |
5085 | { | |
5086 | p = frag_more (1); | |
5087 | *p = (((i.drex.reg & 0xf) << 4) | (i.drex.rex & 0x7)); | |
5088 | ||
5089 | /* Encode the OC0 bit if this encoding has multiple | |
5090 | formats. */ | |
5091 | if ((i.tm.opcode_modifier.drex | |
5092 | || i.tm.opcode_modifier.drexv) | |
5093 | && DREX_OC0 (i.tm.extension_opcode)) | |
5094 | *p |= DREX_OC0_MASK; | |
5095 | } | |
5096 | ||
29b0f896 | 5097 | if (i.disp_operands) |
2bbd9c25 | 5098 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 5099 | |
29b0f896 | 5100 | if (i.imm_operands) |
2bbd9c25 | 5101 | output_imm (insn_start_frag, insn_start_off); |
29b0f896 | 5102 | } |
252b5132 | 5103 | |
29b0f896 AM |
5104 | #ifdef DEBUG386 |
5105 | if (flag_debug) | |
5106 | { | |
7b81dfbb | 5107 | pi ("" /*line*/, &i); |
29b0f896 AM |
5108 | } |
5109 | #endif /* DEBUG386 */ | |
5110 | } | |
252b5132 | 5111 | |
e205caa7 L |
5112 | /* Return the size of the displacement operand N. */ |
5113 | ||
5114 | static int | |
5115 | disp_size (unsigned int n) | |
5116 | { | |
5117 | int size = 4; | |
40fb9820 L |
5118 | if (i.types[n].bitfield.disp64) |
5119 | size = 8; | |
5120 | else if (i.types[n].bitfield.disp8) | |
5121 | size = 1; | |
5122 | else if (i.types[n].bitfield.disp16) | |
5123 | size = 2; | |
e205caa7 L |
5124 | return size; |
5125 | } | |
5126 | ||
5127 | /* Return the size of the immediate operand N. */ | |
5128 | ||
5129 | static int | |
5130 | imm_size (unsigned int n) | |
5131 | { | |
5132 | int size = 4; | |
40fb9820 L |
5133 | if (i.types[n].bitfield.imm64) |
5134 | size = 8; | |
5135 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
5136 | size = 1; | |
5137 | else if (i.types[n].bitfield.imm16) | |
5138 | size = 2; | |
e205caa7 L |
5139 | return size; |
5140 | } | |
5141 | ||
29b0f896 | 5142 | static void |
64e74474 | 5143 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
5144 | { |
5145 | char *p; | |
5146 | unsigned int n; | |
252b5132 | 5147 | |
29b0f896 AM |
5148 | for (n = 0; n < i.operands; n++) |
5149 | { | |
40fb9820 | 5150 | if (operand_type_check (i.types[n], disp)) |
29b0f896 AM |
5151 | { |
5152 | if (i.op[n].disps->X_op == O_constant) | |
5153 | { | |
e205caa7 | 5154 | int size = disp_size (n); |
29b0f896 | 5155 | offsetT val; |
252b5132 | 5156 | |
29b0f896 AM |
5157 | val = offset_in_range (i.op[n].disps->X_add_number, |
5158 | size); | |
5159 | p = frag_more (size); | |
5160 | md_number_to_chars (p, val, size); | |
5161 | } | |
5162 | else | |
5163 | { | |
f86103b7 | 5164 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 5165 | int size = disp_size (n); |
40fb9820 | 5166 | int sign = i.types[n].bitfield.disp32s; |
29b0f896 AM |
5167 | int pcrel = (i.flags[n] & Operand_PCrel) != 0; |
5168 | ||
e205caa7 | 5169 | /* We can't have 8 bit displacement here. */ |
40fb9820 | 5170 | assert (!i.types[n].bitfield.disp8); |
e205caa7 | 5171 | |
29b0f896 AM |
5172 | /* The PC relative address is computed relative |
5173 | to the instruction boundary, so in case immediate | |
5174 | fields follows, we need to adjust the value. */ | |
5175 | if (pcrel && i.imm_operands) | |
5176 | { | |
29b0f896 | 5177 | unsigned int n1; |
e205caa7 | 5178 | int sz = 0; |
252b5132 | 5179 | |
29b0f896 | 5180 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 5181 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 5182 | { |
e205caa7 L |
5183 | /* Only one immediate is allowed for PC |
5184 | relative address. */ | |
5185 | assert (sz == 0); | |
5186 | sz = imm_size (n1); | |
5187 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 5188 | } |
29b0f896 | 5189 | /* We should find the immediate. */ |
e205caa7 | 5190 | assert (sz != 0); |
29b0f896 | 5191 | } |
520dc8e8 | 5192 | |
29b0f896 | 5193 | p = frag_more (size); |
2bbd9c25 | 5194 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 5195 | if (GOT_symbol |
2bbd9c25 | 5196 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 5197 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
5198 | || reloc_type == BFD_RELOC_X86_64_32S |
5199 | || (reloc_type == BFD_RELOC_64 | |
5200 | && object_64bit)) | |
d6ab8113 JB |
5201 | && (i.op[n].disps->X_op == O_symbol |
5202 | || (i.op[n].disps->X_op == O_add | |
5203 | && ((symbol_get_value_expression | |
5204 | (i.op[n].disps->X_op_symbol)->X_op) | |
5205 | == O_subtract)))) | |
5206 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 JJ |
5207 | { |
5208 | offsetT add; | |
5209 | ||
5210 | if (insn_start_frag == frag_now) | |
5211 | add = (p - frag_now->fr_literal) - insn_start_off; | |
5212 | else | |
5213 | { | |
5214 | fragS *fr; | |
5215 | ||
5216 | add = insn_start_frag->fr_fix - insn_start_off; | |
5217 | for (fr = insn_start_frag->fr_next; | |
5218 | fr && fr != frag_now; fr = fr->fr_next) | |
5219 | add += fr->fr_fix; | |
5220 | add += p - frag_now->fr_literal; | |
5221 | } | |
5222 | ||
4fa24527 | 5223 | if (!object_64bit) |
7b81dfbb AJ |
5224 | { |
5225 | reloc_type = BFD_RELOC_386_GOTPC; | |
5226 | i.op[n].imms->X_add_number += add; | |
5227 | } | |
5228 | else if (reloc_type == BFD_RELOC_64) | |
5229 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 5230 | else |
7b81dfbb AJ |
5231 | /* Don't do the adjustment for x86-64, as there |
5232 | the pcrel addressing is relative to the _next_ | |
5233 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 5234 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 5235 | } |
062cd5e7 | 5236 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
2bbd9c25 | 5237 | i.op[n].disps, pcrel, reloc_type); |
29b0f896 AM |
5238 | } |
5239 | } | |
5240 | } | |
5241 | } | |
252b5132 | 5242 | |
29b0f896 | 5243 | static void |
64e74474 | 5244 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
5245 | { |
5246 | char *p; | |
5247 | unsigned int n; | |
252b5132 | 5248 | |
29b0f896 AM |
5249 | for (n = 0; n < i.operands; n++) |
5250 | { | |
40fb9820 | 5251 | if (operand_type_check (i.types[n], imm)) |
29b0f896 AM |
5252 | { |
5253 | if (i.op[n].imms->X_op == O_constant) | |
5254 | { | |
e205caa7 | 5255 | int size = imm_size (n); |
29b0f896 | 5256 | offsetT val; |
b4cac588 | 5257 | |
29b0f896 AM |
5258 | val = offset_in_range (i.op[n].imms->X_add_number, |
5259 | size); | |
5260 | p = frag_more (size); | |
5261 | md_number_to_chars (p, val, size); | |
5262 | } | |
5263 | else | |
5264 | { | |
5265 | /* Not absolute_section. | |
5266 | Need a 32-bit fixup (don't support 8bit | |
5267 | non-absolute imms). Try to support other | |
5268 | sizes ... */ | |
f86103b7 | 5269 | enum bfd_reloc_code_real reloc_type; |
e205caa7 L |
5270 | int size = imm_size (n); |
5271 | int sign; | |
29b0f896 | 5272 | |
40fb9820 | 5273 | if (i.types[n].bitfield.imm32s |
a7d61044 | 5274 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 5275 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 5276 | sign = 1; |
e205caa7 L |
5277 | else |
5278 | sign = 0; | |
520dc8e8 | 5279 | |
29b0f896 AM |
5280 | p = frag_more (size); |
5281 | reloc_type = reloc (size, 0, sign, i.reloc[n]); | |
f86103b7 | 5282 | |
2bbd9c25 JJ |
5283 | /* This is tough to explain. We end up with this one if we |
5284 | * have operands that look like | |
5285 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
5286 | * obtain the absolute address of the GOT, and it is strongly | |
5287 | * preferable from a performance point of view to avoid using | |
5288 | * a runtime relocation for this. The actual sequence of | |
5289 | * instructions often look something like: | |
5290 | * | |
5291 | * call .L66 | |
5292 | * .L66: | |
5293 | * popl %ebx | |
5294 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
5295 | * | |
5296 | * The call and pop essentially return the absolute address | |
5297 | * of the label .L66 and store it in %ebx. The linker itself | |
5298 | * will ultimately change the first operand of the addl so | |
5299 | * that %ebx points to the GOT, but to keep things simple, the | |
5300 | * .o file must have this operand set so that it generates not | |
5301 | * the absolute address of .L66, but the absolute address of | |
5302 | * itself. This allows the linker itself simply treat a GOTPC | |
5303 | * relocation as asking for a pcrel offset to the GOT to be | |
5304 | * added in, and the addend of the relocation is stored in the | |
5305 | * operand field for the instruction itself. | |
5306 | * | |
5307 | * Our job here is to fix the operand so that it would add | |
5308 | * the correct offset so that %ebx would point to itself. The | |
5309 | * thing that is tricky is that .-.L66 will point to the | |
5310 | * beginning of the instruction, so we need to further modify | |
5311 | * the operand so that it will point to itself. There are | |
5312 | * other cases where you have something like: | |
5313 | * | |
5314 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
5315 | * | |
5316 | * and here no correction would be required. Internally in | |
5317 | * the assembler we treat operands of this form as not being | |
5318 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
5319 | * whether it would simplify matters to do it this way. Who | |
5320 | * knows. In earlier versions of the PIC patches, the | |
5321 | * pcrel_adjust field was used to store the correction, but | |
5322 | * since the expression is not pcrel, I felt it would be | |
5323 | * confusing to do it this way. */ | |
5324 | ||
d6ab8113 | 5325 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
5326 | || reloc_type == BFD_RELOC_X86_64_32S |
5327 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
5328 | && GOT_symbol |
5329 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
5330 | && (i.op[n].imms->X_op == O_symbol | |
5331 | || (i.op[n].imms->X_op == O_add | |
5332 | && ((symbol_get_value_expression | |
5333 | (i.op[n].imms->X_op_symbol)->X_op) | |
5334 | == O_subtract)))) | |
5335 | { | |
2bbd9c25 JJ |
5336 | offsetT add; |
5337 | ||
5338 | if (insn_start_frag == frag_now) | |
5339 | add = (p - frag_now->fr_literal) - insn_start_off; | |
5340 | else | |
5341 | { | |
5342 | fragS *fr; | |
5343 | ||
5344 | add = insn_start_frag->fr_fix - insn_start_off; | |
5345 | for (fr = insn_start_frag->fr_next; | |
5346 | fr && fr != frag_now; fr = fr->fr_next) | |
5347 | add += fr->fr_fix; | |
5348 | add += p - frag_now->fr_literal; | |
5349 | } | |
5350 | ||
4fa24527 | 5351 | if (!object_64bit) |
d6ab8113 | 5352 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 5353 | else if (size == 4) |
d6ab8113 | 5354 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
5355 | else if (size == 8) |
5356 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
2bbd9c25 | 5357 | i.op[n].imms->X_add_number += add; |
29b0f896 | 5358 | } |
29b0f896 AM |
5359 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
5360 | i.op[n].imms, 0, reloc_type); | |
5361 | } | |
5362 | } | |
5363 | } | |
252b5132 RH |
5364 | } |
5365 | \f | |
d182319b JB |
5366 | /* x86_cons_fix_new is called via the expression parsing code when a |
5367 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
5368 | static enum bfd_reloc_code_real got_reloc = NO_RELOC; | |
5369 | static int cons_sign = -1; | |
5370 | ||
5371 | void | |
e3bb37b5 | 5372 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
64e74474 | 5373 | expressionS *exp) |
d182319b JB |
5374 | { |
5375 | enum bfd_reloc_code_real r = reloc (len, 0, cons_sign, got_reloc); | |
5376 | ||
5377 | got_reloc = NO_RELOC; | |
5378 | ||
5379 | #ifdef TE_PE | |
5380 | if (exp->X_op == O_secrel) | |
5381 | { | |
5382 | exp->X_op = O_symbol; | |
5383 | r = BFD_RELOC_32_SECREL; | |
5384 | } | |
5385 | #endif | |
5386 | ||
5387 | fix_new_exp (frag, off, len, exp, 0, r); | |
5388 | } | |
5389 | ||
718ddfc0 JB |
5390 | #if (!defined (OBJ_ELF) && !defined (OBJ_MAYBE_ELF)) || defined (LEX_AT) |
5391 | # define lex_got(reloc, adjust, types) NULL | |
5392 | #else | |
f3c180ae AM |
5393 | /* Parse operands of the form |
5394 | <symbol>@GOTOFF+<nnn> | |
5395 | and similar .plt or .got references. | |
5396 | ||
5397 | If we find one, set up the correct relocation in RELOC and copy the | |
5398 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
5399 | parsing by the calling routine. Return this buffer, and if ADJUST | |
5400 | is non-null set it to the length of the string we removed from the | |
5401 | input line. Otherwise return NULL. */ | |
5402 | static char * | |
3956db08 | 5403 | lex_got (enum bfd_reloc_code_real *reloc, |
64e74474 | 5404 | int *adjust, |
40fb9820 | 5405 | i386_operand_type *types) |
f3c180ae | 5406 | { |
7b81dfbb AJ |
5407 | /* Some of the relocations depend on the size of what field is to |
5408 | be relocated. But in our callers i386_immediate and i386_displacement | |
5409 | we don't yet know the operand size (this will be set by insn | |
5410 | matching). Hence we record the word32 relocation here, | |
5411 | and adjust the reloc according to the real size in reloc(). */ | |
f3c180ae AM |
5412 | static const struct { |
5413 | const char *str; | |
4fa24527 | 5414 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 5415 | const i386_operand_type types64; |
f3c180ae | 5416 | } gotrel[] = { |
4eed87de AM |
5417 | { "PLTOFF", { 0, |
5418 | BFD_RELOC_X86_64_PLTOFF64 }, | |
40fb9820 | 5419 | OPERAND_TYPE_IMM64 }, |
4eed87de AM |
5420 | { "PLT", { BFD_RELOC_386_PLT32, |
5421 | BFD_RELOC_X86_64_PLT32 }, | |
40fb9820 | 5422 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5423 | { "GOTPLT", { 0, |
5424 | BFD_RELOC_X86_64_GOTPLT64 }, | |
40fb9820 | 5425 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
5426 | { "GOTOFF", { BFD_RELOC_386_GOTOFF, |
5427 | BFD_RELOC_X86_64_GOTOFF64 }, | |
40fb9820 | 5428 | OPERAND_TYPE_IMM64_DISP64 }, |
4eed87de AM |
5429 | { "GOTPCREL", { 0, |
5430 | BFD_RELOC_X86_64_GOTPCREL }, | |
40fb9820 | 5431 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5432 | { "TLSGD", { BFD_RELOC_386_TLS_GD, |
5433 | BFD_RELOC_X86_64_TLSGD }, | |
40fb9820 | 5434 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5435 | { "TLSLDM", { BFD_RELOC_386_TLS_LDM, |
5436 | 0 }, | |
40fb9820 | 5437 | OPERAND_TYPE_NONE }, |
4eed87de AM |
5438 | { "TLSLD", { 0, |
5439 | BFD_RELOC_X86_64_TLSLD }, | |
40fb9820 | 5440 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5441 | { "GOTTPOFF", { BFD_RELOC_386_TLS_IE_32, |
5442 | BFD_RELOC_X86_64_GOTTPOFF }, | |
40fb9820 | 5443 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5444 | { "TPOFF", { BFD_RELOC_386_TLS_LE_32, |
5445 | BFD_RELOC_X86_64_TPOFF32 }, | |
40fb9820 | 5446 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, |
4eed87de AM |
5447 | { "NTPOFF", { BFD_RELOC_386_TLS_LE, |
5448 | 0 }, | |
40fb9820 | 5449 | OPERAND_TYPE_NONE }, |
4eed87de AM |
5450 | { "DTPOFF", { BFD_RELOC_386_TLS_LDO_32, |
5451 | BFD_RELOC_X86_64_DTPOFF32 }, | |
40fb9820 L |
5452 | |
5453 | OPERAND_TYPE_IMM32_32S_64_DISP32_64 }, | |
4eed87de AM |
5454 | { "GOTNTPOFF",{ BFD_RELOC_386_TLS_GOTIE, |
5455 | 0 }, | |
40fb9820 | 5456 | OPERAND_TYPE_NONE }, |
4eed87de AM |
5457 | { "INDNTPOFF",{ BFD_RELOC_386_TLS_IE, |
5458 | 0 }, | |
40fb9820 | 5459 | OPERAND_TYPE_NONE }, |
4eed87de AM |
5460 | { "GOT", { BFD_RELOC_386_GOT32, |
5461 | BFD_RELOC_X86_64_GOT32 }, | |
40fb9820 | 5462 | OPERAND_TYPE_IMM32_32S_64_DISP32 }, |
4eed87de AM |
5463 | { "TLSDESC", { BFD_RELOC_386_TLS_GOTDESC, |
5464 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
40fb9820 | 5465 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
4eed87de AM |
5466 | { "TLSCALL", { BFD_RELOC_386_TLS_DESC_CALL, |
5467 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
40fb9820 | 5468 | OPERAND_TYPE_IMM32_32S_DISP32 }, |
f3c180ae AM |
5469 | }; |
5470 | char *cp; | |
5471 | unsigned int j; | |
5472 | ||
718ddfc0 JB |
5473 | if (!IS_ELF) |
5474 | return NULL; | |
5475 | ||
f3c180ae | 5476 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 5477 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
5478 | return NULL; |
5479 | ||
5480 | for (j = 0; j < sizeof (gotrel) / sizeof (gotrel[0]); j++) | |
5481 | { | |
5482 | int len; | |
5483 | ||
5484 | len = strlen (gotrel[j].str); | |
28f81592 | 5485 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 5486 | { |
4fa24527 | 5487 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 5488 | { |
28f81592 AM |
5489 | int first, second; |
5490 | char *tmpbuf, *past_reloc; | |
f3c180ae | 5491 | |
4fa24527 | 5492 | *reloc = gotrel[j].rel[object_64bit]; |
28f81592 AM |
5493 | if (adjust) |
5494 | *adjust = len; | |
f3c180ae | 5495 | |
3956db08 JB |
5496 | if (types) |
5497 | { | |
5498 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
5499 | { |
5500 | types->bitfield.imm32 = 1; | |
5501 | types->bitfield.disp32 = 1; | |
5502 | } | |
3956db08 JB |
5503 | else |
5504 | *types = gotrel[j].types64; | |
5505 | } | |
5506 | ||
f3c180ae AM |
5507 | if (GOT_symbol == NULL) |
5508 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
5509 | ||
28f81592 | 5510 | /* The length of the first part of our input line. */ |
f3c180ae | 5511 | first = cp - input_line_pointer; |
28f81592 AM |
5512 | |
5513 | /* The second part goes from after the reloc token until | |
67c11a9b | 5514 | (and including) an end_of_line char or comma. */ |
28f81592 | 5515 | past_reloc = cp + 1 + len; |
67c11a9b AM |
5516 | cp = past_reloc; |
5517 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
5518 | ++cp; | |
5519 | second = cp + 1 - past_reloc; | |
28f81592 AM |
5520 | |
5521 | /* Allocate and copy string. The trailing NUL shouldn't | |
5522 | be necessary, but be safe. */ | |
5523 | tmpbuf = xmalloc (first + second + 2); | |
f3c180ae | 5524 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
5525 | if (second != 0 && *past_reloc != ' ') |
5526 | /* Replace the relocation token with ' ', so that | |
5527 | errors like foo@GOTOFF1 will be detected. */ | |
5528 | tmpbuf[first++] = ' '; | |
5529 | memcpy (tmpbuf + first, past_reloc, second); | |
5530 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
5531 | return tmpbuf; |
5532 | } | |
5533 | ||
4fa24527 JB |
5534 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
5535 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
5536 | return NULL; |
5537 | } | |
5538 | } | |
5539 | ||
5540 | /* Might be a symbol version string. Don't as_bad here. */ | |
5541 | return NULL; | |
5542 | } | |
5543 | ||
f3c180ae | 5544 | void |
e3bb37b5 | 5545 | x86_cons (expressionS *exp, int size) |
f3c180ae | 5546 | { |
4fa24527 | 5547 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
5548 | { |
5549 | /* Handle @GOTOFF and the like in an expression. */ | |
5550 | char *save; | |
5551 | char *gotfree_input_line; | |
5552 | int adjust; | |
5553 | ||
5554 | save = input_line_pointer; | |
3956db08 | 5555 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
5556 | if (gotfree_input_line) |
5557 | input_line_pointer = gotfree_input_line; | |
5558 | ||
5559 | expression (exp); | |
5560 | ||
5561 | if (gotfree_input_line) | |
5562 | { | |
5563 | /* expression () has merrily parsed up to the end of line, | |
5564 | or a comma - in the wrong buffer. Transfer how far | |
5565 | input_line_pointer has moved to the right buffer. */ | |
5566 | input_line_pointer = (save | |
5567 | + (input_line_pointer - gotfree_input_line) | |
5568 | + adjust); | |
5569 | free (gotfree_input_line); | |
3992d3b7 AM |
5570 | if (exp->X_op == O_constant |
5571 | || exp->X_op == O_absent | |
5572 | || exp->X_op == O_illegal | |
5573 | || exp->X_op == O_register | |
5574 | || exp->X_op == O_big) | |
5575 | { | |
5576 | char c = *input_line_pointer; | |
5577 | *input_line_pointer = 0; | |
5578 | as_bad (_("missing or invalid expression `%s'"), save); | |
5579 | *input_line_pointer = c; | |
5580 | } | |
f3c180ae AM |
5581 | } |
5582 | } | |
5583 | else | |
5584 | expression (exp); | |
5585 | } | |
5586 | #endif | |
5587 | ||
d182319b | 5588 | static void signed_cons (int size) |
6482c264 | 5589 | { |
d182319b JB |
5590 | if (flag_code == CODE_64BIT) |
5591 | cons_sign = 1; | |
5592 | cons (size); | |
5593 | cons_sign = -1; | |
6482c264 NC |
5594 | } |
5595 | ||
d182319b | 5596 | #ifdef TE_PE |
6482c264 NC |
5597 | static void |
5598 | pe_directive_secrel (dummy) | |
5599 | int dummy ATTRIBUTE_UNUSED; | |
5600 | { | |
5601 | expressionS exp; | |
5602 | ||
5603 | do | |
5604 | { | |
5605 | expression (&exp); | |
5606 | if (exp.X_op == O_symbol) | |
5607 | exp.X_op = O_secrel; | |
5608 | ||
5609 | emit_expr (&exp, 4); | |
5610 | } | |
5611 | while (*input_line_pointer++ == ','); | |
5612 | ||
5613 | input_line_pointer--; | |
5614 | demand_empty_rest_of_line (); | |
5615 | } | |
6482c264 NC |
5616 | #endif |
5617 | ||
252b5132 | 5618 | static int |
70e41ade | 5619 | i386_immediate (char *imm_start) |
252b5132 RH |
5620 | { |
5621 | char *save_input_line_pointer; | |
f3c180ae | 5622 | char *gotfree_input_line; |
252b5132 | 5623 | segT exp_seg = 0; |
47926f60 | 5624 | expressionS *exp; |
40fb9820 L |
5625 | i386_operand_type types; |
5626 | ||
c6fb90c8 | 5627 | UINTS_SET (types, ~0); |
252b5132 RH |
5628 | |
5629 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
5630 | { | |
31b2323c L |
5631 | as_bad (_("at most %d immediate operands are allowed"), |
5632 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
5633 | return 0; |
5634 | } | |
5635 | ||
5636 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 5637 | i.op[this_operand].imms = exp; |
252b5132 RH |
5638 | |
5639 | if (is_space_char (*imm_start)) | |
5640 | ++imm_start; | |
5641 | ||
5642 | save_input_line_pointer = input_line_pointer; | |
5643 | input_line_pointer = imm_start; | |
5644 | ||
3956db08 | 5645 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
5646 | if (gotfree_input_line) |
5647 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
5648 | |
5649 | exp_seg = expression (exp); | |
5650 | ||
83183c0c | 5651 | SKIP_WHITESPACE (); |
252b5132 | 5652 | if (*input_line_pointer) |
f3c180ae | 5653 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
5654 | |
5655 | input_line_pointer = save_input_line_pointer; | |
f3c180ae AM |
5656 | if (gotfree_input_line) |
5657 | free (gotfree_input_line); | |
252b5132 | 5658 | |
3992d3b7 AM |
5659 | if (exp->X_op == O_absent |
5660 | || exp->X_op == O_illegal | |
5661 | || exp->X_op == O_big | |
5662 | || (gotfree_input_line | |
5663 | && (exp->X_op == O_constant | |
5664 | || exp->X_op == O_register))) | |
252b5132 | 5665 | { |
3992d3b7 | 5666 | as_bad (_("missing or invalid immediate expression `%s'"), |
24eab124 | 5667 | imm_start); |
3992d3b7 | 5668 | return 0; |
252b5132 | 5669 | } |
3e73aa7c | 5670 | else if (exp->X_op == O_constant) |
252b5132 | 5671 | { |
47926f60 | 5672 | /* Size it properly later. */ |
40fb9820 | 5673 | i.types[this_operand].bitfield.imm64 = 1; |
3e73aa7c | 5674 | /* If BFD64, sign extend val. */ |
4eed87de AM |
5675 | if (!use_rela_relocations |
5676 | && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0) | |
5677 | exp->X_add_number | |
5678 | = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
252b5132 | 5679 | } |
4c63da97 | 5680 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 5681 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 5682 | && exp_seg != absolute_section |
47926f60 | 5683 | && exp_seg != text_section |
24eab124 AM |
5684 | && exp_seg != data_section |
5685 | && exp_seg != bss_section | |
5686 | && exp_seg != undefined_section | |
f86103b7 | 5687 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 5688 | { |
d0b47220 | 5689 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
5690 | return 0; |
5691 | } | |
5692 | #endif | |
bb8f5920 L |
5693 | else if (!intel_syntax && exp->X_op == O_register) |
5694 | { | |
5695 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
5696 | return 0; | |
5697 | } | |
252b5132 RH |
5698 | else |
5699 | { | |
5700 | /* This is an address. The size of the address will be | |
24eab124 | 5701 | determined later, depending on destination register, |
3e73aa7c | 5702 | suffix, or the default for the section. */ |
40fb9820 L |
5703 | i.types[this_operand].bitfield.imm8 = 1; |
5704 | i.types[this_operand].bitfield.imm16 = 1; | |
5705 | i.types[this_operand].bitfield.imm32 = 1; | |
5706 | i.types[this_operand].bitfield.imm32s = 1; | |
5707 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
5708 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
5709 | types); | |
252b5132 RH |
5710 | } |
5711 | ||
5712 | return 1; | |
5713 | } | |
5714 | ||
551c1ca1 | 5715 | static char * |
e3bb37b5 | 5716 | i386_scale (char *scale) |
252b5132 | 5717 | { |
551c1ca1 AM |
5718 | offsetT val; |
5719 | char *save = input_line_pointer; | |
252b5132 | 5720 | |
551c1ca1 AM |
5721 | input_line_pointer = scale; |
5722 | val = get_absolute_expression (); | |
5723 | ||
5724 | switch (val) | |
252b5132 | 5725 | { |
551c1ca1 | 5726 | case 1: |
252b5132 RH |
5727 | i.log2_scale_factor = 0; |
5728 | break; | |
551c1ca1 | 5729 | case 2: |
252b5132 RH |
5730 | i.log2_scale_factor = 1; |
5731 | break; | |
551c1ca1 | 5732 | case 4: |
252b5132 RH |
5733 | i.log2_scale_factor = 2; |
5734 | break; | |
551c1ca1 | 5735 | case 8: |
252b5132 RH |
5736 | i.log2_scale_factor = 3; |
5737 | break; | |
5738 | default: | |
a724f0f4 JB |
5739 | { |
5740 | char sep = *input_line_pointer; | |
5741 | ||
5742 | *input_line_pointer = '\0'; | |
5743 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
5744 | scale); | |
5745 | *input_line_pointer = sep; | |
5746 | input_line_pointer = save; | |
5747 | return NULL; | |
5748 | } | |
252b5132 | 5749 | } |
29b0f896 | 5750 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
5751 | { |
5752 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 5753 | 1 << i.log2_scale_factor); |
252b5132 | 5754 | i.log2_scale_factor = 0; |
252b5132 | 5755 | } |
551c1ca1 AM |
5756 | scale = input_line_pointer; |
5757 | input_line_pointer = save; | |
5758 | return scale; | |
252b5132 RH |
5759 | } |
5760 | ||
252b5132 | 5761 | static int |
e3bb37b5 | 5762 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 5763 | { |
29b0f896 | 5764 | expressionS *exp; |
252b5132 RH |
5765 | segT exp_seg = 0; |
5766 | char *save_input_line_pointer; | |
f3c180ae | 5767 | char *gotfree_input_line; |
40fb9820 L |
5768 | int override; |
5769 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 5770 | int ret; |
252b5132 | 5771 | |
31b2323c L |
5772 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
5773 | { | |
5774 | as_bad (_("at most %d displacement operands are allowed"), | |
5775 | MAX_MEMORY_OPERANDS); | |
5776 | return 0; | |
5777 | } | |
5778 | ||
c6fb90c8 | 5779 | UINTS_CLEAR (bigdisp); |
40fb9820 L |
5780 | if ((i.types[this_operand].bitfield.jumpabsolute) |
5781 | || (!current_templates->start->opcode_modifier.jump | |
5782 | && !current_templates->start->opcode_modifier.jumpdword)) | |
e05278af | 5783 | { |
40fb9820 | 5784 | bigdisp.bitfield.disp32 = 1; |
e05278af | 5785 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
5786 | if (flag_code == CODE_64BIT) |
5787 | { | |
5788 | if (!override) | |
5789 | { | |
5790 | bigdisp.bitfield.disp32s = 1; | |
5791 | bigdisp.bitfield.disp64 = 1; | |
5792 | } | |
5793 | } | |
5794 | else if ((flag_code == CODE_16BIT) ^ override) | |
5795 | { | |
5796 | bigdisp.bitfield.disp32 = 0; | |
5797 | bigdisp.bitfield.disp16 = 1; | |
5798 | } | |
e05278af JB |
5799 | } |
5800 | else | |
5801 | { | |
5802 | /* For PC-relative branches, the width of the displacement | |
5803 | is dependent upon data size, not address size. */ | |
e05278af | 5804 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
5805 | if (flag_code == CODE_64BIT) |
5806 | { | |
5807 | if (override || i.suffix == WORD_MNEM_SUFFIX) | |
5808 | bigdisp.bitfield.disp16 = 1; | |
5809 | else | |
5810 | { | |
5811 | bigdisp.bitfield.disp32 = 1; | |
5812 | bigdisp.bitfield.disp32s = 1; | |
5813 | } | |
5814 | } | |
5815 | else | |
e05278af JB |
5816 | { |
5817 | if (!override) | |
5818 | override = (i.suffix == (flag_code != CODE_16BIT | |
5819 | ? WORD_MNEM_SUFFIX | |
5820 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
5821 | bigdisp.bitfield.disp32 = 1; |
5822 | if ((flag_code == CODE_16BIT) ^ override) | |
5823 | { | |
5824 | bigdisp.bitfield.disp32 = 0; | |
5825 | bigdisp.bitfield.disp16 = 1; | |
5826 | } | |
e05278af | 5827 | } |
e05278af | 5828 | } |
c6fb90c8 L |
5829 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
5830 | bigdisp); | |
252b5132 RH |
5831 | |
5832 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 5833 | i.op[this_operand].disps = exp; |
252b5132 RH |
5834 | i.disp_operands++; |
5835 | save_input_line_pointer = input_line_pointer; | |
5836 | input_line_pointer = disp_start; | |
5837 | END_STRING_AND_SAVE (disp_end); | |
5838 | ||
5839 | #ifndef GCC_ASM_O_HACK | |
5840 | #define GCC_ASM_O_HACK 0 | |
5841 | #endif | |
5842 | #if GCC_ASM_O_HACK | |
5843 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 5844 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 5845 | && displacement_string_end[-1] == '+') |
252b5132 RH |
5846 | { |
5847 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
5848 | constraint within gcc asm statements. |
5849 | For instance: | |
5850 | ||
5851 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
5852 | __asm__ __volatile__ ( \ | |
5853 | "movw %w2,%0\n\t" \ | |
5854 | "movw %w1,2+%0\n\t" \ | |
5855 | "rorl $16,%1\n\t" \ | |
5856 | "movb %b1,4+%0\n\t" \ | |
5857 | "movb %4,5+%0\n\t" \ | |
5858 | "movb $0,6+%0\n\t" \ | |
5859 | "movb %h1,7+%0\n\t" \ | |
5860 | "rorl $16,%1" \ | |
5861 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
5862 | ||
5863 | This works great except that the output assembler ends | |
5864 | up looking a bit weird if it turns out that there is | |
5865 | no offset. You end up producing code that looks like: | |
5866 | ||
5867 | #APP | |
5868 | movw $235,(%eax) | |
5869 | movw %dx,2+(%eax) | |
5870 | rorl $16,%edx | |
5871 | movb %dl,4+(%eax) | |
5872 | movb $137,5+(%eax) | |
5873 | movb $0,6+(%eax) | |
5874 | movb %dh,7+(%eax) | |
5875 | rorl $16,%edx | |
5876 | #NO_APP | |
5877 | ||
47926f60 | 5878 | So here we provide the missing zero. */ |
24eab124 AM |
5879 | |
5880 | *displacement_string_end = '0'; | |
252b5132 RH |
5881 | } |
5882 | #endif | |
3956db08 | 5883 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
5884 | if (gotfree_input_line) |
5885 | input_line_pointer = gotfree_input_line; | |
252b5132 | 5886 | |
24eab124 | 5887 | exp_seg = expression (exp); |
252b5132 | 5888 | |
636c26b0 AM |
5889 | SKIP_WHITESPACE (); |
5890 | if (*input_line_pointer) | |
5891 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
5892 | #if GCC_ASM_O_HACK | |
5893 | RESTORE_END_STRING (disp_end + 1); | |
5894 | #endif | |
636c26b0 | 5895 | input_line_pointer = save_input_line_pointer; |
636c26b0 AM |
5896 | if (gotfree_input_line) |
5897 | free (gotfree_input_line); | |
3992d3b7 | 5898 | ret = 1; |
636c26b0 | 5899 | |
24eab124 AM |
5900 | /* We do this to make sure that the section symbol is in |
5901 | the symbol table. We will ultimately change the relocation | |
47926f60 | 5902 | to be relative to the beginning of the section. */ |
1ae12ab7 | 5903 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
5904 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
5905 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 5906 | { |
636c26b0 | 5907 | if (exp->X_op != O_symbol) |
3992d3b7 | 5908 | goto inv_disp; |
636c26b0 | 5909 | |
e5cb08ac | 5910 | if (S_IS_LOCAL (exp->X_add_symbol) |
24eab124 AM |
5911 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section) |
5912 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); | |
24eab124 AM |
5913 | exp->X_op = O_subtract; |
5914 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 5915 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 5916 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
5917 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
5918 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 5919 | else |
29b0f896 | 5920 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 5921 | } |
252b5132 | 5922 | |
3992d3b7 AM |
5923 | else if (exp->X_op == O_absent |
5924 | || exp->X_op == O_illegal | |
5925 | || exp->X_op == O_big | |
5926 | || (gotfree_input_line | |
5927 | && (exp->X_op == O_constant | |
5928 | || exp->X_op == O_register))) | |
2daf4fd8 | 5929 | { |
3992d3b7 AM |
5930 | inv_disp: |
5931 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 5932 | disp_start); |
3992d3b7 | 5933 | ret = 0; |
2daf4fd8 AM |
5934 | } |
5935 | ||
4c63da97 | 5936 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
3992d3b7 AM |
5937 | else if (exp->X_op != O_constant |
5938 | && OUTPUT_FLAVOR == bfd_target_aout_flavour | |
5939 | && exp_seg != absolute_section | |
5940 | && exp_seg != text_section | |
5941 | && exp_seg != data_section | |
5942 | && exp_seg != bss_section | |
5943 | && exp_seg != undefined_section | |
5944 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 5945 | { |
d0b47220 | 5946 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 5947 | ret = 0; |
24eab124 | 5948 | } |
252b5132 | 5949 | #endif |
3956db08 | 5950 | |
3992d3b7 AM |
5951 | RESTORE_END_STRING (disp_end); |
5952 | ||
40fb9820 L |
5953 | /* Check if this is a displacement only operand. */ |
5954 | bigdisp = i.types[this_operand]; | |
5955 | bigdisp.bitfield.disp8 = 0; | |
5956 | bigdisp.bitfield.disp16 = 0; | |
5957 | bigdisp.bitfield.disp32 = 0; | |
5958 | bigdisp.bitfield.disp32s = 0; | |
5959 | bigdisp.bitfield.disp64 = 0; | |
c6fb90c8 L |
5960 | if (UINTS_ALL_ZERO (bigdisp)) |
5961 | i.types[this_operand] = operand_type_and (i.types[this_operand], | |
5962 | types); | |
3956db08 | 5963 | |
3992d3b7 | 5964 | return ret; |
252b5132 RH |
5965 | } |
5966 | ||
eecb386c | 5967 | /* Make sure the memory operand we've been dealt is valid. |
47926f60 KH |
5968 | Return 1 on success, 0 on a failure. */ |
5969 | ||
252b5132 | 5970 | static int |
e3bb37b5 | 5971 | i386_index_check (const char *operand_string) |
252b5132 | 5972 | { |
3e73aa7c | 5973 | int ok; |
24eab124 | 5974 | #if INFER_ADDR_PREFIX |
eecb386c AM |
5975 | int fudged = 0; |
5976 | ||
24eab124 AM |
5977 | tryprefix: |
5978 | #endif | |
3e73aa7c | 5979 | ok = 1; |
75178d9d | 5980 | if (flag_code == CODE_64BIT) |
64e74474 | 5981 | { |
64e74474 | 5982 | if ((i.base_reg |
40fb9820 L |
5983 | && ((i.prefix[ADDR_PREFIX] == 0 |
5984 | && !i.base_reg->reg_type.bitfield.reg64) | |
5985 | || (i.prefix[ADDR_PREFIX] | |
5986 | && !i.base_reg->reg_type.bitfield.reg32)) | |
5987 | && (i.index_reg | |
9a04903e JB |
5988 | || i.base_reg->reg_num != |
5989 | (i.prefix[ADDR_PREFIX] == 0 ? RegRip : RegEip))) | |
64e74474 | 5990 | || (i.index_reg |
40fb9820 L |
5991 | && (!i.index_reg->reg_type.bitfield.baseindex |
5992 | || (i.prefix[ADDR_PREFIX] == 0 | |
db51cc60 L |
5993 | && i.index_reg->reg_num != RegRiz |
5994 | && !i.index_reg->reg_type.bitfield.reg64 | |
5995 | ) | |
40fb9820 | 5996 | || (i.prefix[ADDR_PREFIX] |
db51cc60 | 5997 | && i.index_reg->reg_num != RegEiz |
40fb9820 | 5998 | && !i.index_reg->reg_type.bitfield.reg32)))) |
64e74474 | 5999 | ok = 0; |
3e73aa7c JH |
6000 | } |
6001 | else | |
6002 | { | |
6003 | if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) | |
6004 | { | |
6005 | /* 16bit checks. */ | |
6006 | if ((i.base_reg | |
40fb9820 L |
6007 | && (!i.base_reg->reg_type.bitfield.reg16 |
6008 | || !i.base_reg->reg_type.bitfield.baseindex)) | |
3e73aa7c | 6009 | || (i.index_reg |
40fb9820 L |
6010 | && (!i.index_reg->reg_type.bitfield.reg16 |
6011 | || !i.index_reg->reg_type.bitfield.baseindex | |
29b0f896 AM |
6012 | || !(i.base_reg |
6013 | && i.base_reg->reg_num < 6 | |
6014 | && i.index_reg->reg_num >= 6 | |
6015 | && i.log2_scale_factor == 0)))) | |
3e73aa7c JH |
6016 | ok = 0; |
6017 | } | |
6018 | else | |
e5cb08ac | 6019 | { |
3e73aa7c JH |
6020 | /* 32bit checks. */ |
6021 | if ((i.base_reg | |
40fb9820 | 6022 | && !i.base_reg->reg_type.bitfield.reg32) |
3e73aa7c | 6023 | || (i.index_reg |
db51cc60 L |
6024 | && ((!i.index_reg->reg_type.bitfield.reg32 |
6025 | && i.index_reg->reg_num != RegEiz) | |
40fb9820 | 6026 | || !i.index_reg->reg_type.bitfield.baseindex))) |
e5cb08ac | 6027 | ok = 0; |
3e73aa7c JH |
6028 | } |
6029 | } | |
6030 | if (!ok) | |
24eab124 AM |
6031 | { |
6032 | #if INFER_ADDR_PREFIX | |
20f0a1fc | 6033 | if (i.prefix[ADDR_PREFIX] == 0) |
24eab124 AM |
6034 | { |
6035 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
6036 | i.prefixes += 1; | |
b23bac36 AM |
6037 | /* Change the size of any displacement too. At most one of |
6038 | Disp16 or Disp32 is set. | |
6039 | FIXME. There doesn't seem to be any real need for separate | |
6040 | Disp16 and Disp32 flags. The same goes for Imm16 and Imm32. | |
47926f60 | 6041 | Removing them would probably clean up the code quite a lot. */ |
4eed87de | 6042 | if (flag_code != CODE_64BIT |
40fb9820 L |
6043 | && (i.types[this_operand].bitfield.disp16 |
6044 | || i.types[this_operand].bitfield.disp32)) | |
6045 | i.types[this_operand] | |
c6fb90c8 | 6046 | = operand_type_xor (i.types[this_operand], disp16_32); |
eecb386c | 6047 | fudged = 1; |
24eab124 AM |
6048 | goto tryprefix; |
6049 | } | |
eecb386c AM |
6050 | if (fudged) |
6051 | as_bad (_("`%s' is not a valid base/index expression"), | |
6052 | operand_string); | |
6053 | else | |
c388dee8 | 6054 | #endif |
eecb386c AM |
6055 | as_bad (_("`%s' is not a valid %s bit base/index expression"), |
6056 | operand_string, | |
3e73aa7c | 6057 | flag_code_names[flag_code]); |
24eab124 | 6058 | } |
20f0a1fc | 6059 | return ok; |
24eab124 | 6060 | } |
252b5132 | 6061 | |
252b5132 | 6062 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns non-zero |
47926f60 | 6063 | on error. */ |
252b5132 | 6064 | |
252b5132 | 6065 | static int |
e3bb37b5 | 6066 | i386_operand (char *operand_string) |
252b5132 | 6067 | { |
af6bdddf AM |
6068 | const reg_entry *r; |
6069 | char *end_op; | |
24eab124 | 6070 | char *op_string = operand_string; |
252b5132 | 6071 | |
24eab124 | 6072 | if (is_space_char (*op_string)) |
252b5132 RH |
6073 | ++op_string; |
6074 | ||
24eab124 | 6075 | /* We check for an absolute prefix (differentiating, |
47926f60 | 6076 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
6077 | if (*op_string == ABSOLUTE_PREFIX) |
6078 | { | |
6079 | ++op_string; | |
6080 | if (is_space_char (*op_string)) | |
6081 | ++op_string; | |
40fb9820 | 6082 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 | 6083 | } |
252b5132 | 6084 | |
47926f60 | 6085 | /* Check if operand is a register. */ |
4d1bb795 | 6086 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 6087 | { |
40fb9820 L |
6088 | i386_operand_type temp; |
6089 | ||
24eab124 AM |
6090 | /* Check for a segment override by searching for ':' after a |
6091 | segment register. */ | |
6092 | op_string = end_op; | |
6093 | if (is_space_char (*op_string)) | |
6094 | ++op_string; | |
40fb9820 L |
6095 | if (*op_string == ':' |
6096 | && (r->reg_type.bitfield.sreg2 | |
6097 | || r->reg_type.bitfield.sreg3)) | |
24eab124 AM |
6098 | { |
6099 | switch (r->reg_num) | |
6100 | { | |
6101 | case 0: | |
6102 | i.seg[i.mem_operands] = &es; | |
6103 | break; | |
6104 | case 1: | |
6105 | i.seg[i.mem_operands] = &cs; | |
6106 | break; | |
6107 | case 2: | |
6108 | i.seg[i.mem_operands] = &ss; | |
6109 | break; | |
6110 | case 3: | |
6111 | i.seg[i.mem_operands] = &ds; | |
6112 | break; | |
6113 | case 4: | |
6114 | i.seg[i.mem_operands] = &fs; | |
6115 | break; | |
6116 | case 5: | |
6117 | i.seg[i.mem_operands] = &gs; | |
6118 | break; | |
6119 | } | |
252b5132 | 6120 | |
24eab124 | 6121 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
6122 | ++op_string; |
6123 | if (is_space_char (*op_string)) | |
24eab124 | 6124 | ++op_string; |
252b5132 | 6125 | |
24eab124 AM |
6126 | if (!is_digit_char (*op_string) |
6127 | && !is_identifier_char (*op_string) | |
6128 | && *op_string != '(' | |
6129 | && *op_string != ABSOLUTE_PREFIX) | |
6130 | { | |
6131 | as_bad (_("bad memory operand `%s'"), op_string); | |
6132 | return 0; | |
6133 | } | |
47926f60 | 6134 | /* Handle case of %es:*foo. */ |
24eab124 AM |
6135 | if (*op_string == ABSOLUTE_PREFIX) |
6136 | { | |
6137 | ++op_string; | |
6138 | if (is_space_char (*op_string)) | |
6139 | ++op_string; | |
40fb9820 | 6140 | i.types[this_operand].bitfield.jumpabsolute = 1; |
24eab124 AM |
6141 | } |
6142 | goto do_memory_reference; | |
6143 | } | |
6144 | if (*op_string) | |
6145 | { | |
d0b47220 | 6146 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
6147 | return 0; |
6148 | } | |
40fb9820 L |
6149 | temp = r->reg_type; |
6150 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
6151 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
6152 | temp); | |
520dc8e8 | 6153 | i.op[this_operand].regs = r; |
24eab124 AM |
6154 | i.reg_operands++; |
6155 | } | |
af6bdddf AM |
6156 | else if (*op_string == REGISTER_PREFIX) |
6157 | { | |
6158 | as_bad (_("bad register name `%s'"), op_string); | |
6159 | return 0; | |
6160 | } | |
24eab124 | 6161 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 6162 | { |
24eab124 | 6163 | ++op_string; |
40fb9820 | 6164 | if (i.types[this_operand].bitfield.jumpabsolute) |
24eab124 | 6165 | { |
d0b47220 | 6166 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
6167 | return 0; |
6168 | } | |
6169 | if (!i386_immediate (op_string)) | |
6170 | return 0; | |
6171 | } | |
6172 | else if (is_digit_char (*op_string) | |
6173 | || is_identifier_char (*op_string) | |
e5cb08ac | 6174 | || *op_string == '(') |
24eab124 | 6175 | { |
47926f60 | 6176 | /* This is a memory reference of some sort. */ |
af6bdddf | 6177 | char *base_string; |
252b5132 | 6178 | |
47926f60 | 6179 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
6180 | char *displacement_string_start; |
6181 | char *displacement_string_end; | |
252b5132 | 6182 | |
24eab124 | 6183 | do_memory_reference: |
24eab124 | 6184 | if ((i.mem_operands == 1 |
40fb9820 | 6185 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
6186 | || i.mem_operands == 2) |
6187 | { | |
6188 | as_bad (_("too many memory references for `%s'"), | |
6189 | current_templates->start->name); | |
6190 | return 0; | |
6191 | } | |
252b5132 | 6192 | |
24eab124 AM |
6193 | /* Check for base index form. We detect the base index form by |
6194 | looking for an ')' at the end of the operand, searching | |
6195 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
6196 | after the '('. */ | |
af6bdddf | 6197 | base_string = op_string + strlen (op_string); |
c3332e24 | 6198 | |
af6bdddf AM |
6199 | --base_string; |
6200 | if (is_space_char (*base_string)) | |
6201 | --base_string; | |
252b5132 | 6202 | |
47926f60 | 6203 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
6204 | displacement_string_start = op_string; |
6205 | displacement_string_end = base_string + 1; | |
252b5132 | 6206 | |
24eab124 AM |
6207 | if (*base_string == ')') |
6208 | { | |
af6bdddf | 6209 | char *temp_string; |
24eab124 AM |
6210 | unsigned int parens_balanced = 1; |
6211 | /* We've already checked that the number of left & right ()'s are | |
47926f60 | 6212 | equal, so this loop will not be infinite. */ |
24eab124 AM |
6213 | do |
6214 | { | |
6215 | base_string--; | |
6216 | if (*base_string == ')') | |
6217 | parens_balanced++; | |
6218 | if (*base_string == '(') | |
6219 | parens_balanced--; | |
6220 | } | |
6221 | while (parens_balanced); | |
c3332e24 | 6222 | |
af6bdddf | 6223 | temp_string = base_string; |
c3332e24 | 6224 | |
24eab124 | 6225 | /* Skip past '(' and whitespace. */ |
252b5132 RH |
6226 | ++base_string; |
6227 | if (is_space_char (*base_string)) | |
24eab124 | 6228 | ++base_string; |
252b5132 | 6229 | |
af6bdddf | 6230 | if (*base_string == ',' |
4eed87de AM |
6231 | || ((i.base_reg = parse_register (base_string, &end_op)) |
6232 | != NULL)) | |
252b5132 | 6233 | { |
af6bdddf | 6234 | displacement_string_end = temp_string; |
252b5132 | 6235 | |
40fb9820 | 6236 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 6237 | |
af6bdddf | 6238 | if (i.base_reg) |
24eab124 | 6239 | { |
24eab124 AM |
6240 | base_string = end_op; |
6241 | if (is_space_char (*base_string)) | |
6242 | ++base_string; | |
af6bdddf AM |
6243 | } |
6244 | ||
6245 | /* There may be an index reg or scale factor here. */ | |
6246 | if (*base_string == ',') | |
6247 | { | |
6248 | ++base_string; | |
6249 | if (is_space_char (*base_string)) | |
6250 | ++base_string; | |
6251 | ||
4eed87de AM |
6252 | if ((i.index_reg = parse_register (base_string, &end_op)) |
6253 | != NULL) | |
24eab124 | 6254 | { |
af6bdddf | 6255 | base_string = end_op; |
24eab124 AM |
6256 | if (is_space_char (*base_string)) |
6257 | ++base_string; | |
af6bdddf AM |
6258 | if (*base_string == ',') |
6259 | { | |
6260 | ++base_string; | |
6261 | if (is_space_char (*base_string)) | |
6262 | ++base_string; | |
6263 | } | |
e5cb08ac | 6264 | else if (*base_string != ')') |
af6bdddf | 6265 | { |
4eed87de AM |
6266 | as_bad (_("expecting `,' or `)' " |
6267 | "after index register in `%s'"), | |
af6bdddf AM |
6268 | operand_string); |
6269 | return 0; | |
6270 | } | |
24eab124 | 6271 | } |
af6bdddf | 6272 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 6273 | { |
af6bdddf | 6274 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
6275 | return 0; |
6276 | } | |
252b5132 | 6277 | |
47926f60 | 6278 | /* Check for scale factor. */ |
551c1ca1 | 6279 | if (*base_string != ')') |
af6bdddf | 6280 | { |
551c1ca1 AM |
6281 | char *end_scale = i386_scale (base_string); |
6282 | ||
6283 | if (!end_scale) | |
af6bdddf | 6284 | return 0; |
24eab124 | 6285 | |
551c1ca1 | 6286 | base_string = end_scale; |
af6bdddf AM |
6287 | if (is_space_char (*base_string)) |
6288 | ++base_string; | |
6289 | if (*base_string != ')') | |
6290 | { | |
4eed87de AM |
6291 | as_bad (_("expecting `)' " |
6292 | "after scale factor in `%s'"), | |
af6bdddf AM |
6293 | operand_string); |
6294 | return 0; | |
6295 | } | |
6296 | } | |
6297 | else if (!i.index_reg) | |
24eab124 | 6298 | { |
4eed87de AM |
6299 | as_bad (_("expecting index register or scale factor " |
6300 | "after `,'; got '%c'"), | |
af6bdddf | 6301 | *base_string); |
24eab124 AM |
6302 | return 0; |
6303 | } | |
6304 | } | |
af6bdddf | 6305 | else if (*base_string != ')') |
24eab124 | 6306 | { |
4eed87de AM |
6307 | as_bad (_("expecting `,' or `)' " |
6308 | "after base register in `%s'"), | |
af6bdddf | 6309 | operand_string); |
24eab124 AM |
6310 | return 0; |
6311 | } | |
c3332e24 | 6312 | } |
af6bdddf | 6313 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 6314 | { |
af6bdddf | 6315 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 6316 | return 0; |
c3332e24 | 6317 | } |
24eab124 AM |
6318 | } |
6319 | ||
6320 | /* If there's an expression beginning the operand, parse it, | |
6321 | assuming displacement_string_start and | |
6322 | displacement_string_end are meaningful. */ | |
6323 | if (displacement_string_start != displacement_string_end) | |
6324 | { | |
6325 | if (!i386_displacement (displacement_string_start, | |
6326 | displacement_string_end)) | |
6327 | return 0; | |
6328 | } | |
6329 | ||
6330 | /* Special case for (%dx) while doing input/output op. */ | |
6331 | if (i.base_reg | |
c6fb90c8 | 6332 | && UINTS_EQUAL (i.base_reg->reg_type, reg16_inoutportreg) |
24eab124 AM |
6333 | && i.index_reg == 0 |
6334 | && i.log2_scale_factor == 0 | |
6335 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 6336 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 6337 | { |
c6fb90c8 | 6338 | UINTS_CLEAR (i.types[this_operand]); |
40fb9820 | 6339 | i.types[this_operand].bitfield.inoutportreg = 1; |
24eab124 AM |
6340 | return 1; |
6341 | } | |
6342 | ||
eecb386c AM |
6343 | if (i386_index_check (operand_string) == 0) |
6344 | return 0; | |
24eab124 AM |
6345 | i.mem_operands++; |
6346 | } | |
6347 | else | |
ce8a8b2f AM |
6348 | { |
6349 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
6350 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
6351 | output_invalid (*op_string), | |
6352 | this_operand + 1, | |
6353 | op_string); | |
6354 | return 0; | |
6355 | } | |
47926f60 | 6356 | return 1; /* Normal return. */ |
252b5132 RH |
6357 | } |
6358 | \f | |
ee7fcc42 AM |
6359 | /* md_estimate_size_before_relax() |
6360 | ||
6361 | Called just before relax() for rs_machine_dependent frags. The x86 | |
6362 | assembler uses these frags to handle variable size jump | |
6363 | instructions. | |
6364 | ||
6365 | Any symbol that is now undefined will not become defined. | |
6366 | Return the correct fr_subtype in the frag. | |
6367 | Return the initial "guess for variable size of frag" to caller. | |
6368 | The guess is actually the growth beyond the fixed part. Whatever | |
6369 | we do to grow the fixed or variable part contributes to our | |
6370 | returned value. */ | |
6371 | ||
252b5132 RH |
6372 | int |
6373 | md_estimate_size_before_relax (fragP, segment) | |
29b0f896 AM |
6374 | fragS *fragP; |
6375 | segT segment; | |
252b5132 | 6376 | { |
252b5132 | 6377 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
6378 | check for un-relaxable symbols. On an ELF system, we can't relax |
6379 | an externally visible symbol, because it may be overridden by a | |
6380 | shared library. */ | |
6381 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 6382 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 6383 | || (IS_ELF |
31312f95 AM |
6384 | && (S_IS_EXTERNAL (fragP->fr_symbol) |
6385 | || S_IS_WEAK (fragP->fr_symbol))) | |
b98ef147 AM |
6386 | #endif |
6387 | ) | |
252b5132 | 6388 | { |
b98ef147 AM |
6389 | /* Symbol is undefined in this segment, or we need to keep a |
6390 | reloc so that weak symbols can be overridden. */ | |
6391 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 6392 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
6393 | unsigned char *opcode; |
6394 | int old_fr_fix; | |
f6af82bd | 6395 | |
ee7fcc42 AM |
6396 | if (fragP->fr_var != NO_RELOC) |
6397 | reloc_type = fragP->fr_var; | |
b98ef147 | 6398 | else if (size == 2) |
f6af82bd AM |
6399 | reloc_type = BFD_RELOC_16_PCREL; |
6400 | else | |
6401 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 6402 | |
ee7fcc42 AM |
6403 | old_fr_fix = fragP->fr_fix; |
6404 | opcode = (unsigned char *) fragP->fr_opcode; | |
6405 | ||
fddf5b5b | 6406 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 6407 | { |
fddf5b5b AM |
6408 | case UNCOND_JUMP: |
6409 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 6410 | opcode[0] = 0xe9; |
252b5132 | 6411 | fragP->fr_fix += size; |
062cd5e7 AS |
6412 | fix_new (fragP, old_fr_fix, size, |
6413 | fragP->fr_symbol, | |
6414 | fragP->fr_offset, 1, | |
6415 | reloc_type); | |
252b5132 RH |
6416 | break; |
6417 | ||
fddf5b5b | 6418 | case COND_JUMP86: |
412167cb AM |
6419 | if (size == 2 |
6420 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
6421 | { |
6422 | /* Negate the condition, and branch past an | |
6423 | unconditional jump. */ | |
6424 | opcode[0] ^= 1; | |
6425 | opcode[1] = 3; | |
6426 | /* Insert an unconditional jump. */ | |
6427 | opcode[2] = 0xe9; | |
6428 | /* We added two extra opcode bytes, and have a two byte | |
6429 | offset. */ | |
6430 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
6431 | fix_new (fragP, old_fr_fix + 2, 2, |
6432 | fragP->fr_symbol, | |
6433 | fragP->fr_offset, 1, | |
6434 | reloc_type); | |
fddf5b5b AM |
6435 | break; |
6436 | } | |
6437 | /* Fall through. */ | |
6438 | ||
6439 | case COND_JUMP: | |
412167cb AM |
6440 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
6441 | { | |
3e02c1cc AM |
6442 | fixS *fixP; |
6443 | ||
412167cb | 6444 | fragP->fr_fix += 1; |
3e02c1cc AM |
6445 | fixP = fix_new (fragP, old_fr_fix, 1, |
6446 | fragP->fr_symbol, | |
6447 | fragP->fr_offset, 1, | |
6448 | BFD_RELOC_8_PCREL); | |
6449 | fixP->fx_signed = 1; | |
412167cb AM |
6450 | break; |
6451 | } | |
93c2a809 | 6452 | |
24eab124 | 6453 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 6454 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 6455 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 6456 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
6457 | /* We've added an opcode byte. */ |
6458 | fragP->fr_fix += 1 + size; | |
062cd5e7 AS |
6459 | fix_new (fragP, old_fr_fix + 1, size, |
6460 | fragP->fr_symbol, | |
6461 | fragP->fr_offset, 1, | |
6462 | reloc_type); | |
252b5132 | 6463 | break; |
fddf5b5b AM |
6464 | |
6465 | default: | |
6466 | BAD_CASE (fragP->fr_subtype); | |
6467 | break; | |
252b5132 RH |
6468 | } |
6469 | frag_wane (fragP); | |
ee7fcc42 | 6470 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 6471 | } |
93c2a809 | 6472 | |
93c2a809 AM |
6473 | /* Guess size depending on current relax state. Initially the relax |
6474 | state will correspond to a short jump and we return 1, because | |
6475 | the variable part of the frag (the branch offset) is one byte | |
6476 | long. However, we can relax a section more than once and in that | |
6477 | case we must either set fr_subtype back to the unrelaxed state, | |
6478 | or return the value for the appropriate branch. */ | |
6479 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
6480 | } |
6481 | ||
47926f60 KH |
6482 | /* Called after relax() is finished. |
6483 | ||
6484 | In: Address of frag. | |
6485 | fr_type == rs_machine_dependent. | |
6486 | fr_subtype is what the address relaxed to. | |
6487 | ||
6488 | Out: Any fixSs and constants are set up. | |
6489 | Caller will turn frag into a ".space 0". */ | |
6490 | ||
252b5132 RH |
6491 | void |
6492 | md_convert_frag (abfd, sec, fragP) | |
ab9da554 ILT |
6493 | bfd *abfd ATTRIBUTE_UNUSED; |
6494 | segT sec ATTRIBUTE_UNUSED; | |
29b0f896 | 6495 | fragS *fragP; |
252b5132 | 6496 | { |
29b0f896 | 6497 | unsigned char *opcode; |
252b5132 | 6498 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
6499 | offsetT target_address; |
6500 | offsetT opcode_address; | |
252b5132 | 6501 | unsigned int extension = 0; |
847f7ad4 | 6502 | offsetT displacement_from_opcode_start; |
252b5132 RH |
6503 | |
6504 | opcode = (unsigned char *) fragP->fr_opcode; | |
6505 | ||
47926f60 | 6506 | /* Address we want to reach in file space. */ |
252b5132 | 6507 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 6508 | |
47926f60 | 6509 | /* Address opcode resides at in file space. */ |
252b5132 RH |
6510 | opcode_address = fragP->fr_address + fragP->fr_fix; |
6511 | ||
47926f60 | 6512 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
6513 | displacement_from_opcode_start = target_address - opcode_address; |
6514 | ||
fddf5b5b | 6515 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 6516 | { |
47926f60 KH |
6517 | /* Don't have to change opcode. */ |
6518 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 6519 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
6520 | } |
6521 | else | |
6522 | { | |
6523 | if (no_cond_jump_promotion | |
6524 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
6525 | as_warn_where (fragP->fr_file, fragP->fr_line, |
6526 | _("long jump required")); | |
252b5132 | 6527 | |
fddf5b5b AM |
6528 | switch (fragP->fr_subtype) |
6529 | { | |
6530 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
6531 | extension = 4; /* 1 opcode + 4 displacement */ | |
6532 | opcode[0] = 0xe9; | |
6533 | where_to_put_displacement = &opcode[1]; | |
6534 | break; | |
252b5132 | 6535 | |
fddf5b5b AM |
6536 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
6537 | extension = 2; /* 1 opcode + 2 displacement */ | |
6538 | opcode[0] = 0xe9; | |
6539 | where_to_put_displacement = &opcode[1]; | |
6540 | break; | |
252b5132 | 6541 | |
fddf5b5b AM |
6542 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
6543 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
6544 | extension = 5; /* 2 opcode + 4 displacement */ | |
6545 | opcode[1] = opcode[0] + 0x10; | |
6546 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
6547 | where_to_put_displacement = &opcode[2]; | |
6548 | break; | |
252b5132 | 6549 | |
fddf5b5b AM |
6550 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
6551 | extension = 3; /* 2 opcode + 2 displacement */ | |
6552 | opcode[1] = opcode[0] + 0x10; | |
6553 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
6554 | where_to_put_displacement = &opcode[2]; | |
6555 | break; | |
252b5132 | 6556 | |
fddf5b5b AM |
6557 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
6558 | extension = 4; | |
6559 | opcode[0] ^= 1; | |
6560 | opcode[1] = 3; | |
6561 | opcode[2] = 0xe9; | |
6562 | where_to_put_displacement = &opcode[3]; | |
6563 | break; | |
6564 | ||
6565 | default: | |
6566 | BAD_CASE (fragP->fr_subtype); | |
6567 | break; | |
6568 | } | |
252b5132 | 6569 | } |
fddf5b5b | 6570 | |
7b81dfbb AJ |
6571 | /* If size if less then four we are sure that the operand fits, |
6572 | but if it's 4, then it could be that the displacement is larger | |
6573 | then -/+ 2GB. */ | |
6574 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
6575 | && object_64bit | |
6576 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
6577 | + ((addressT) 1 << 31)) |
6578 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
6579 | { |
6580 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
6581 | _("jump target out of range")); | |
6582 | /* Make us emit 0. */ | |
6583 | displacement_from_opcode_start = extension; | |
6584 | } | |
47926f60 | 6585 | /* Now put displacement after opcode. */ |
252b5132 RH |
6586 | md_number_to_chars ((char *) where_to_put_displacement, |
6587 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 6588 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
6589 | fragP->fr_fix += extension; |
6590 | } | |
6591 | \f | |
47926f60 KH |
6592 | /* Size of byte displacement jmp. */ |
6593 | int md_short_jump_size = 2; | |
6594 | ||
6595 | /* Size of dword displacement jmp. */ | |
6596 | int md_long_jump_size = 5; | |
252b5132 | 6597 | |
252b5132 RH |
6598 | void |
6599 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
6600 | char *ptr; | |
6601 | addressT from_addr, to_addr; | |
ab9da554 ILT |
6602 | fragS *frag ATTRIBUTE_UNUSED; |
6603 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
252b5132 | 6604 | { |
847f7ad4 | 6605 | offsetT offset; |
252b5132 RH |
6606 | |
6607 | offset = to_addr - (from_addr + 2); | |
47926f60 KH |
6608 | /* Opcode for byte-disp jump. */ |
6609 | md_number_to_chars (ptr, (valueT) 0xeb, 1); | |
252b5132 RH |
6610 | md_number_to_chars (ptr + 1, (valueT) offset, 1); |
6611 | } | |
6612 | ||
6613 | void | |
6614 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
6615 | char *ptr; | |
6616 | addressT from_addr, to_addr; | |
a38cf1db AM |
6617 | fragS *frag ATTRIBUTE_UNUSED; |
6618 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
252b5132 | 6619 | { |
847f7ad4 | 6620 | offsetT offset; |
252b5132 | 6621 | |
a38cf1db AM |
6622 | offset = to_addr - (from_addr + 5); |
6623 | md_number_to_chars (ptr, (valueT) 0xe9, 1); | |
6624 | md_number_to_chars (ptr + 1, (valueT) offset, 4); | |
252b5132 RH |
6625 | } |
6626 | \f | |
6627 | /* Apply a fixup (fixS) to segment data, once it has been determined | |
6628 | by our caller that we have all the info we need to fix it up. | |
6629 | ||
6630 | On the 386, immediates, displacements, and data pointers are all in | |
6631 | the same (little-endian) format, so we don't need to care about which | |
6632 | we are handling. */ | |
6633 | ||
94f592af | 6634 | void |
55cf6793 | 6635 | md_apply_fix (fixP, valP, seg) |
47926f60 KH |
6636 | /* The fix we're to put in. */ |
6637 | fixS *fixP; | |
47926f60 | 6638 | /* Pointer to the value of the bits. */ |
c6682705 | 6639 | valueT *valP; |
47926f60 KH |
6640 | /* Segment fix is from. */ |
6641 | segT seg ATTRIBUTE_UNUSED; | |
252b5132 | 6642 | { |
94f592af | 6643 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 6644 | valueT value = *valP; |
252b5132 | 6645 | |
f86103b7 | 6646 | #if !defined (TE_Mach) |
93382f6d AM |
6647 | if (fixP->fx_pcrel) |
6648 | { | |
6649 | switch (fixP->fx_r_type) | |
6650 | { | |
5865bb77 ILT |
6651 | default: |
6652 | break; | |
6653 | ||
d6ab8113 JB |
6654 | case BFD_RELOC_64: |
6655 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
6656 | break; | |
93382f6d | 6657 | case BFD_RELOC_32: |
ae8887b5 | 6658 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
6659 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
6660 | break; | |
6661 | case BFD_RELOC_16: | |
6662 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
6663 | break; | |
6664 | case BFD_RELOC_8: | |
6665 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
6666 | break; | |
6667 | } | |
6668 | } | |
252b5132 | 6669 | |
a161fe53 | 6670 | if (fixP->fx_addsy != NULL |
31312f95 | 6671 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 6672 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 AM |
6673 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
6674 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) | |
6675 | && !use_rela_relocations) | |
252b5132 | 6676 | { |
31312f95 AM |
6677 | /* This is a hack. There should be a better way to handle this. |
6678 | This covers for the fact that bfd_install_relocation will | |
6679 | subtract the current location (for partial_inplace, PC relative | |
6680 | relocations); see more below. */ | |
252b5132 | 6681 | #ifndef OBJ_AOUT |
718ddfc0 | 6682 | if (IS_ELF |
252b5132 RH |
6683 | #ifdef TE_PE |
6684 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
6685 | #endif | |
6686 | ) | |
6687 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
6688 | #endif | |
6689 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 6690 | if (IS_ELF) |
252b5132 | 6691 | { |
6539b54b | 6692 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 6693 | |
6539b54b | 6694 | if ((sym_seg == seg |
2f66722d | 6695 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 6696 | && sym_seg != absolute_section)) |
ae6063d4 | 6697 | && !generic_force_reloc (fixP)) |
2f66722d AM |
6698 | { |
6699 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
6700 | bfd_install_relocation subtracts them out again. I think |
6701 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
6702 | it. FIXME. */ |
6703 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
6704 | } | |
252b5132 RH |
6705 | } |
6706 | #endif | |
6707 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
6708 | /* For some reason, the PE format does not store a |
6709 | section address offset for a PC relative symbol. */ | |
6710 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 6711 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
6712 | value += md_pcrel_from (fixP); |
6713 | #endif | |
6714 | } | |
6715 | ||
6716 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 6717 | and we must not disappoint it. */ |
252b5132 | 6718 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 6719 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
6720 | switch (fixP->fx_r_type) |
6721 | { | |
6722 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 6723 | case BFD_RELOC_X86_64_PLT32: |
47926f60 KH |
6724 | /* Make the jump instruction point to the address of the operand. At |
6725 | runtime we merely add the offset to the actual PLT entry. */ | |
6726 | value = -4; | |
6727 | break; | |
31312f95 | 6728 | |
13ae64f3 JJ |
6729 | case BFD_RELOC_386_TLS_GD: |
6730 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 6731 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
6732 | case BFD_RELOC_386_TLS_IE: |
6733 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 6734 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
6735 | case BFD_RELOC_X86_64_TLSGD: |
6736 | case BFD_RELOC_X86_64_TLSLD: | |
6737 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 6738 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
6739 | value = 0; /* Fully resolved at runtime. No addend. */ |
6740 | /* Fallthrough */ | |
6741 | case BFD_RELOC_386_TLS_LE: | |
6742 | case BFD_RELOC_386_TLS_LDO_32: | |
6743 | case BFD_RELOC_386_TLS_LE_32: | |
6744 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 6745 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 6746 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 6747 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
6748 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
6749 | break; | |
6750 | ||
67a4f2b7 AO |
6751 | case BFD_RELOC_386_TLS_DESC_CALL: |
6752 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
6753 | value = 0; /* Fully resolved at runtime. No addend. */ | |
6754 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
6755 | fixP->fx_done = 0; | |
6756 | return; | |
6757 | ||
00f7efb6 JJ |
6758 | case BFD_RELOC_386_GOT32: |
6759 | case BFD_RELOC_X86_64_GOT32: | |
47926f60 KH |
6760 | value = 0; /* Fully resolved at runtime. No addend. */ |
6761 | break; | |
47926f60 KH |
6762 | |
6763 | case BFD_RELOC_VTABLE_INHERIT: | |
6764 | case BFD_RELOC_VTABLE_ENTRY: | |
6765 | fixP->fx_done = 0; | |
94f592af | 6766 | return; |
47926f60 KH |
6767 | |
6768 | default: | |
6769 | break; | |
6770 | } | |
6771 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
c6682705 | 6772 | *valP = value; |
f86103b7 | 6773 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 6774 | |
3e73aa7c | 6775 | /* Are we finished with this relocation now? */ |
c6682705 | 6776 | if (fixP->fx_addsy == NULL) |
3e73aa7c JH |
6777 | fixP->fx_done = 1; |
6778 | else if (use_rela_relocations) | |
6779 | { | |
6780 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
6781 | /* Remember value for tc_gen_reloc. */ |
6782 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
6783 | value = 0; |
6784 | } | |
f86103b7 | 6785 | |
94f592af | 6786 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 6787 | } |
252b5132 | 6788 | \f |
252b5132 RH |
6789 | #define MAX_LITTLENUMS 6 |
6790 | ||
47926f60 KH |
6791 | /* Turn the string pointed to by litP into a floating point constant |
6792 | of type TYPE, and emit the appropriate bytes. The number of | |
6793 | LITTLENUMS emitted is stored in *SIZEP. An error message is | |
6794 | returned, or NULL on OK. */ | |
6795 | ||
252b5132 RH |
6796 | char * |
6797 | md_atof (type, litP, sizeP) | |
2ab9b79e | 6798 | int type; |
252b5132 RH |
6799 | char *litP; |
6800 | int *sizeP; | |
6801 | { | |
6802 | int prec; | |
6803 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
6804 | LITTLENUM_TYPE *wordP; | |
6805 | char *t; | |
6806 | ||
6807 | switch (type) | |
6808 | { | |
6809 | case 'f': | |
6810 | case 'F': | |
6811 | prec = 2; | |
6812 | break; | |
6813 | ||
6814 | case 'd': | |
6815 | case 'D': | |
6816 | prec = 4; | |
6817 | break; | |
6818 | ||
6819 | case 'x': | |
6820 | case 'X': | |
6821 | prec = 5; | |
6822 | break; | |
6823 | ||
6824 | default: | |
6825 | *sizeP = 0; | |
6826 | return _("Bad call to md_atof ()"); | |
6827 | } | |
6828 | t = atof_ieee (input_line_pointer, type, words); | |
6829 | if (t) | |
6830 | input_line_pointer = t; | |
6831 | ||
6832 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
6833 | /* This loops outputs the LITTLENUMs in REVERSE order; in accord with | |
6834 | the bigendian 386. */ | |
6835 | for (wordP = words + prec - 1; prec--;) | |
6836 | { | |
6837 | md_number_to_chars (litP, (valueT) (*wordP--), sizeof (LITTLENUM_TYPE)); | |
6838 | litP += sizeof (LITTLENUM_TYPE); | |
6839 | } | |
6840 | return 0; | |
6841 | } | |
6842 | \f | |
2d545b82 | 6843 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 6844 | |
252b5132 | 6845 | static char * |
e3bb37b5 | 6846 | output_invalid (int c) |
252b5132 | 6847 | { |
3882b010 | 6848 | if (ISPRINT (c)) |
f9f21a03 L |
6849 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
6850 | "'%c'", c); | |
252b5132 | 6851 | else |
f9f21a03 | 6852 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 6853 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
6854 | return output_invalid_buf; |
6855 | } | |
6856 | ||
af6bdddf | 6857 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
6858 | |
6859 | static const reg_entry * | |
4d1bb795 | 6860 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 6861 | { |
af6bdddf AM |
6862 | char *s = reg_string; |
6863 | char *p; | |
252b5132 RH |
6864 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
6865 | const reg_entry *r; | |
6866 | ||
6867 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
6868 | if (*s == REGISTER_PREFIX) | |
6869 | ++s; | |
6870 | ||
6871 | if (is_space_char (*s)) | |
6872 | ++s; | |
6873 | ||
6874 | p = reg_name_given; | |
af6bdddf | 6875 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
6876 | { |
6877 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
6878 | return (const reg_entry *) NULL; |
6879 | s++; | |
252b5132 RH |
6880 | } |
6881 | ||
6588847e DN |
6882 | /* For naked regs, make sure that we are not dealing with an identifier. |
6883 | This prevents confusing an identifier like `eax_var' with register | |
6884 | `eax'. */ | |
6885 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
6886 | return (const reg_entry *) NULL; | |
6887 | ||
af6bdddf | 6888 | *end_op = s; |
252b5132 RH |
6889 | |
6890 | r = (const reg_entry *) hash_find (reg_hash, reg_name_given); | |
6891 | ||
5f47d35b | 6892 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
47926f60 | 6893 | if (r == i386_regtab /* %st is first entry of table */) |
5f47d35b | 6894 | { |
5f47d35b AM |
6895 | if (is_space_char (*s)) |
6896 | ++s; | |
6897 | if (*s == '(') | |
6898 | { | |
af6bdddf | 6899 | ++s; |
5f47d35b AM |
6900 | if (is_space_char (*s)) |
6901 | ++s; | |
6902 | if (*s >= '0' && *s <= '7') | |
6903 | { | |
db557034 | 6904 | int fpr = *s - '0'; |
af6bdddf | 6905 | ++s; |
5f47d35b AM |
6906 | if (is_space_char (*s)) |
6907 | ++s; | |
6908 | if (*s == ')') | |
6909 | { | |
6910 | *end_op = s + 1; | |
db557034 AM |
6911 | r = hash_find (reg_hash, "st(0)"); |
6912 | know (r); | |
6913 | return r + fpr; | |
5f47d35b | 6914 | } |
5f47d35b | 6915 | } |
47926f60 | 6916 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
6917 | return (const reg_entry *) NULL; |
6918 | } | |
6919 | } | |
6920 | ||
db51cc60 L |
6921 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ |
6922 | if (r != NULL | |
6923 | && !allow_index_reg | |
6924 | && (r->reg_num == RegEiz || r->reg_num == RegRiz)) | |
6925 | return (const reg_entry *) NULL; | |
6926 | ||
1ae00879 | 6927 | if (r != NULL |
d946b91f | 6928 | && ((r->reg_flags & (RegRex64 | RegRex)) |
40fb9820 L |
6929 | || r->reg_type.bitfield.reg64) |
6930 | && (!cpu_arch_flags.bitfield.cpulm | |
c6fb90c8 | 6931 | || !UINTS_EQUAL (r->reg_type, control)) |
1ae00879 | 6932 | && flag_code != CODE_64BIT) |
20f0a1fc | 6933 | return (const reg_entry *) NULL; |
1ae00879 | 6934 | |
252b5132 RH |
6935 | return r; |
6936 | } | |
4d1bb795 JB |
6937 | |
6938 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
6939 | ||
6940 | static const reg_entry * | |
6941 | parse_register (char *reg_string, char **end_op) | |
6942 | { | |
6943 | const reg_entry *r; | |
6944 | ||
6945 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
6946 | r = parse_real_register (reg_string, end_op); | |
6947 | else | |
6948 | r = NULL; | |
6949 | if (!r) | |
6950 | { | |
6951 | char *save = input_line_pointer; | |
6952 | char c; | |
6953 | symbolS *symbolP; | |
6954 | ||
6955 | input_line_pointer = reg_string; | |
6956 | c = get_symbol_end (); | |
6957 | symbolP = symbol_find (reg_string); | |
6958 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) | |
6959 | { | |
6960 | const expressionS *e = symbol_get_value_expression (symbolP); | |
6961 | ||
6962 | know (e->X_op == O_register); | |
4eed87de | 6963 | know (e->X_add_number >= 0 |
c3fe08fa | 6964 | && (valueT) e->X_add_number < i386_regtab_size); |
4d1bb795 JB |
6965 | r = i386_regtab + e->X_add_number; |
6966 | *end_op = input_line_pointer; | |
6967 | } | |
6968 | *input_line_pointer = c; | |
6969 | input_line_pointer = save; | |
6970 | } | |
6971 | return r; | |
6972 | } | |
6973 | ||
6974 | int | |
6975 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
6976 | { | |
6977 | const reg_entry *r; | |
6978 | char *end = input_line_pointer; | |
6979 | ||
6980 | *end = *nextcharP; | |
6981 | r = parse_register (name, &input_line_pointer); | |
6982 | if (r && end <= input_line_pointer) | |
6983 | { | |
6984 | *nextcharP = *input_line_pointer; | |
6985 | *input_line_pointer = 0; | |
6986 | e->X_op = O_register; | |
6987 | e->X_add_number = r - i386_regtab; | |
6988 | return 1; | |
6989 | } | |
6990 | input_line_pointer = end; | |
6991 | *end = 0; | |
6992 | return 0; | |
6993 | } | |
6994 | ||
6995 | void | |
6996 | md_operand (expressionS *e) | |
6997 | { | |
6998 | if (*input_line_pointer == REGISTER_PREFIX) | |
6999 | { | |
7000 | char *end; | |
7001 | const reg_entry *r = parse_real_register (input_line_pointer, &end); | |
7002 | ||
7003 | if (r) | |
7004 | { | |
7005 | e->X_op = O_register; | |
7006 | e->X_add_number = r - i386_regtab; | |
7007 | input_line_pointer = end; | |
7008 | } | |
7009 | } | |
7010 | } | |
7011 | ||
252b5132 | 7012 | \f |
4cc782b5 | 7013 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
12b55ccc | 7014 | const char *md_shortopts = "kVQ:sqn"; |
252b5132 | 7015 | #else |
12b55ccc | 7016 | const char *md_shortopts = "qn"; |
252b5132 | 7017 | #endif |
6e0b89ee | 7018 | |
3e73aa7c | 7019 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
7020 | #define OPTION_64 (OPTION_MD_BASE + 1) |
7021 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
7022 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
7023 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
b3b91714 | 7024 | |
99ad8390 NC |
7025 | struct option md_longopts[] = |
7026 | { | |
3e73aa7c | 7027 | {"32", no_argument, NULL, OPTION_32}, |
99ad8390 | 7028 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
3e73aa7c | 7029 | {"64", no_argument, NULL, OPTION_64}, |
6e0b89ee | 7030 | #endif |
b3b91714 | 7031 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
7032 | {"march", required_argument, NULL, OPTION_MARCH}, |
7033 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
252b5132 RH |
7034 | {NULL, no_argument, NULL, 0} |
7035 | }; | |
7036 | size_t md_longopts_size = sizeof (md_longopts); | |
7037 | ||
7038 | int | |
9103f4f4 | 7039 | md_parse_option (int c, char *arg) |
252b5132 | 7040 | { |
9103f4f4 L |
7041 | unsigned int i; |
7042 | ||
252b5132 RH |
7043 | switch (c) |
7044 | { | |
12b55ccc L |
7045 | case 'n': |
7046 | optimize_align_code = 0; | |
7047 | break; | |
7048 | ||
a38cf1db AM |
7049 | case 'q': |
7050 | quiet_warnings = 1; | |
252b5132 RH |
7051 | break; |
7052 | ||
7053 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
7054 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
7055 | should be emitted or not. FIXME: Not implemented. */ | |
7056 | case 'Q': | |
252b5132 RH |
7057 | break; |
7058 | ||
7059 | /* -V: SVR4 argument to print version ID. */ | |
7060 | case 'V': | |
7061 | print_version_id (); | |
7062 | break; | |
7063 | ||
a38cf1db AM |
7064 | /* -k: Ignore for FreeBSD compatibility. */ |
7065 | case 'k': | |
252b5132 | 7066 | break; |
4cc782b5 ILT |
7067 | |
7068 | case 's': | |
7069 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 7070 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 7071 | break; |
99ad8390 NC |
7072 | #endif |
7073 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) | |
3e73aa7c JH |
7074 | case OPTION_64: |
7075 | { | |
7076 | const char **list, **l; | |
7077 | ||
3e73aa7c JH |
7078 | list = bfd_target_list (); |
7079 | for (l = list; *l != NULL; l++) | |
8620418b | 7080 | if (CONST_STRNEQ (*l, "elf64-x86-64") |
99ad8390 NC |
7081 | || strcmp (*l, "coff-x86-64") == 0 |
7082 | || strcmp (*l, "pe-x86-64") == 0 | |
7083 | || strcmp (*l, "pei-x86-64") == 0) | |
6e0b89ee AM |
7084 | { |
7085 | default_arch = "x86_64"; | |
7086 | break; | |
7087 | } | |
3e73aa7c | 7088 | if (*l == NULL) |
6e0b89ee | 7089 | as_fatal (_("No compiled in support for x86_64")); |
3e73aa7c JH |
7090 | free (list); |
7091 | } | |
7092 | break; | |
7093 | #endif | |
252b5132 | 7094 | |
6e0b89ee AM |
7095 | case OPTION_32: |
7096 | default_arch = "i386"; | |
7097 | break; | |
7098 | ||
b3b91714 AM |
7099 | case OPTION_DIVIDE: |
7100 | #ifdef SVR4_COMMENT_CHARS | |
7101 | { | |
7102 | char *n, *t; | |
7103 | const char *s; | |
7104 | ||
7105 | n = (char *) xmalloc (strlen (i386_comment_chars) + 1); | |
7106 | t = n; | |
7107 | for (s = i386_comment_chars; *s != '\0'; s++) | |
7108 | if (*s != '/') | |
7109 | *t++ = *s; | |
7110 | *t = '\0'; | |
7111 | i386_comment_chars = n; | |
7112 | } | |
7113 | #endif | |
7114 | break; | |
7115 | ||
9103f4f4 L |
7116 | case OPTION_MARCH: |
7117 | if (*arg == '.') | |
7118 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
7119 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
7120 | { | |
7121 | if (strcmp (arg, cpu_arch [i].name) == 0) | |
7122 | { | |
ccc9c027 | 7123 | cpu_arch_isa = cpu_arch[i].type; |
9103f4f4 | 7124 | cpu_arch_isa_flags = cpu_arch[i].flags; |
ccc9c027 L |
7125 | if (!cpu_arch_tune_set) |
7126 | { | |
7127 | cpu_arch_tune = cpu_arch_isa; | |
7128 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
7129 | } | |
9103f4f4 L |
7130 | break; |
7131 | } | |
7132 | } | |
7133 | if (i >= ARRAY_SIZE (cpu_arch)) | |
7134 | as_fatal (_("Invalid -march= option: `%s'"), arg); | |
7135 | break; | |
7136 | ||
7137 | case OPTION_MTUNE: | |
7138 | if (*arg == '.') | |
7139 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
7140 | for (i = 0; i < ARRAY_SIZE (cpu_arch); i++) | |
7141 | { | |
7142 | if (strcmp (arg, cpu_arch [i].name) == 0) | |
7143 | { | |
ccc9c027 | 7144 | cpu_arch_tune_set = 1; |
9103f4f4 L |
7145 | cpu_arch_tune = cpu_arch [i].type; |
7146 | cpu_arch_tune_flags = cpu_arch[i].flags; | |
7147 | break; | |
7148 | } | |
7149 | } | |
7150 | if (i >= ARRAY_SIZE (cpu_arch)) | |
7151 | as_fatal (_("Invalid -mtune= option: `%s'"), arg); | |
7152 | break; | |
7153 | ||
252b5132 RH |
7154 | default: |
7155 | return 0; | |
7156 | } | |
7157 | return 1; | |
7158 | } | |
7159 | ||
7160 | void | |
7161 | md_show_usage (stream) | |
7162 | FILE *stream; | |
7163 | { | |
4cc782b5 ILT |
7164 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
7165 | fprintf (stream, _("\ | |
a38cf1db AM |
7166 | -Q ignored\n\ |
7167 | -V print assembler version number\n\ | |
b3b91714 AM |
7168 | -k ignored\n")); |
7169 | #endif | |
7170 | fprintf (stream, _("\ | |
12b55ccc | 7171 | -n Do not optimize code alignment\n\ |
b3b91714 AM |
7172 | -q quieten some warnings\n")); |
7173 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
7174 | fprintf (stream, _("\ | |
a38cf1db | 7175 | -s ignored\n")); |
b3b91714 | 7176 | #endif |
751d281c L |
7177 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined(TE_PEP) |
7178 | fprintf (stream, _("\ | |
7179 | --32/--64 generate 32bit/64bit code\n")); | |
7180 | #endif | |
b3b91714 AM |
7181 | #ifdef SVR4_COMMENT_CHARS |
7182 | fprintf (stream, _("\ | |
7183 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
7184 | #else |
7185 | fprintf (stream, _("\ | |
b3b91714 | 7186 | --divide ignored\n")); |
4cc782b5 | 7187 | #endif |
9103f4f4 L |
7188 | fprintf (stream, _("\ |
7189 | -march=CPU/-mtune=CPU generate code/optimize for CPU, where CPU is one of:\n\ | |
7190 | i386, i486, pentium, pentiumpro, pentium4, nocona,\n\ | |
4eed87de | 7191 | core, core2, k6, athlon, k8, generic32, generic64\n")); |
9103f4f4 | 7192 | |
252b5132 RH |
7193 | } |
7194 | ||
3e73aa7c | 7195 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
872ce6ff | 7196 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (TE_PEP)) |
252b5132 RH |
7197 | |
7198 | /* Pick the target format to use. */ | |
7199 | ||
47926f60 | 7200 | const char * |
e3bb37b5 | 7201 | i386_target_format (void) |
252b5132 | 7202 | { |
3e73aa7c | 7203 | if (!strcmp (default_arch, "x86_64")) |
9103f4f4 L |
7204 | { |
7205 | set_code_flag (CODE_64BIT); | |
c6fb90c8 | 7206 | if (UINTS_ALL_ZERO (cpu_arch_isa_flags)) |
40fb9820 L |
7207 | { |
7208 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
7209 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
7210 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
7211 | cpu_arch_isa_flags.bitfield.cpui486 = 1; | |
7212 | cpu_arch_isa_flags.bitfield.cpui586 = 1; | |
7213 | cpu_arch_isa_flags.bitfield.cpui686 = 1; | |
7214 | cpu_arch_isa_flags.bitfield.cpup4 = 1; | |
7215 | cpu_arch_isa_flags.bitfield.cpummx= 1; | |
7216 | cpu_arch_isa_flags.bitfield.cpummx2 = 1; | |
7217 | cpu_arch_isa_flags.bitfield.cpusse = 1; | |
7218 | cpu_arch_isa_flags.bitfield.cpusse2 = 1; | |
7219 | } | |
c6fb90c8 | 7220 | if (UINTS_ALL_ZERO (cpu_arch_tune_flags)) |
40fb9820 L |
7221 | { |
7222 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
7223 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
7224 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
7225 | cpu_arch_tune_flags.bitfield.cpui486 = 1; | |
7226 | cpu_arch_tune_flags.bitfield.cpui586 = 1; | |
7227 | cpu_arch_tune_flags.bitfield.cpui686 = 1; | |
7228 | cpu_arch_tune_flags.bitfield.cpup4 = 1; | |
7229 | cpu_arch_tune_flags.bitfield.cpummx= 1; | |
7230 | cpu_arch_tune_flags.bitfield.cpummx2 = 1; | |
7231 | cpu_arch_tune_flags.bitfield.cpusse = 1; | |
7232 | cpu_arch_tune_flags.bitfield.cpusse2 = 1; | |
7233 | } | |
9103f4f4 | 7234 | } |
3e73aa7c | 7235 | else if (!strcmp (default_arch, "i386")) |
9103f4f4 L |
7236 | { |
7237 | set_code_flag (CODE_32BIT); | |
c6fb90c8 | 7238 | if (UINTS_ALL_ZERO (cpu_arch_isa_flags)) |
40fb9820 L |
7239 | { |
7240 | cpu_arch_isa_flags.bitfield.cpui186 = 1; | |
7241 | cpu_arch_isa_flags.bitfield.cpui286 = 1; | |
7242 | cpu_arch_isa_flags.bitfield.cpui386 = 1; | |
7243 | } | |
c6fb90c8 | 7244 | if (UINTS_ALL_ZERO (cpu_arch_tune_flags)) |
40fb9820 L |
7245 | { |
7246 | cpu_arch_tune_flags.bitfield.cpui186 = 1; | |
7247 | cpu_arch_tune_flags.bitfield.cpui286 = 1; | |
7248 | cpu_arch_tune_flags.bitfield.cpui386 = 1; | |
7249 | } | |
9103f4f4 | 7250 | } |
3e73aa7c JH |
7251 | else |
7252 | as_fatal (_("Unknown architecture")); | |
252b5132 RH |
7253 | switch (OUTPUT_FLAVOR) |
7254 | { | |
872ce6ff L |
7255 | #ifdef TE_PEP |
7256 | case bfd_target_coff_flavour: | |
7257 | return flag_code == CODE_64BIT ? COFF_TARGET_FORMAT : "coff-i386"; | |
7258 | break; | |
7259 | #endif | |
4c63da97 AM |
7260 | #ifdef OBJ_MAYBE_AOUT |
7261 | case bfd_target_aout_flavour: | |
47926f60 | 7262 | return AOUT_TARGET_FORMAT; |
4c63da97 AM |
7263 | #endif |
7264 | #ifdef OBJ_MAYBE_COFF | |
252b5132 RH |
7265 | case bfd_target_coff_flavour: |
7266 | return "coff-i386"; | |
4c63da97 | 7267 | #endif |
3e73aa7c | 7268 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 7269 | case bfd_target_elf_flavour: |
3e73aa7c | 7270 | { |
e5cb08ac | 7271 | if (flag_code == CODE_64BIT) |
4fa24527 JB |
7272 | { |
7273 | object_64bit = 1; | |
7274 | use_rela_relocations = 1; | |
7275 | } | |
9d7cbccd | 7276 | return flag_code == CODE_64BIT ? ELF_TARGET_FORMAT64 : ELF_TARGET_FORMAT; |
3e73aa7c | 7277 | } |
4c63da97 | 7278 | #endif |
252b5132 RH |
7279 | default: |
7280 | abort (); | |
7281 | return NULL; | |
7282 | } | |
7283 | } | |
7284 | ||
47926f60 | 7285 | #endif /* OBJ_MAYBE_ more than one */ |
a847613f AM |
7286 | |
7287 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) | |
e3bb37b5 L |
7288 | void |
7289 | i386_elf_emit_arch_note (void) | |
a847613f | 7290 | { |
718ddfc0 | 7291 | if (IS_ELF && cpu_arch_name != NULL) |
a847613f AM |
7292 | { |
7293 | char *p; | |
7294 | asection *seg = now_seg; | |
7295 | subsegT subseg = now_subseg; | |
7296 | Elf_Internal_Note i_note; | |
7297 | Elf_External_Note e_note; | |
7298 | asection *note_secp; | |
7299 | int len; | |
7300 | ||
7301 | /* Create the .note section. */ | |
7302 | note_secp = subseg_new (".note", 0); | |
7303 | bfd_set_section_flags (stdoutput, | |
7304 | note_secp, | |
7305 | SEC_HAS_CONTENTS | SEC_READONLY); | |
7306 | ||
7307 | /* Process the arch string. */ | |
7308 | len = strlen (cpu_arch_name); | |
7309 | ||
7310 | i_note.namesz = len + 1; | |
7311 | i_note.descsz = 0; | |
7312 | i_note.type = NT_ARCH; | |
7313 | p = frag_more (sizeof (e_note.namesz)); | |
7314 | md_number_to_chars (p, (valueT) i_note.namesz, sizeof (e_note.namesz)); | |
7315 | p = frag_more (sizeof (e_note.descsz)); | |
7316 | md_number_to_chars (p, (valueT) i_note.descsz, sizeof (e_note.descsz)); | |
7317 | p = frag_more (sizeof (e_note.type)); | |
7318 | md_number_to_chars (p, (valueT) i_note.type, sizeof (e_note.type)); | |
7319 | p = frag_more (len + 1); | |
7320 | strcpy (p, cpu_arch_name); | |
7321 | ||
7322 | frag_align (2, 0, 0); | |
7323 | ||
7324 | subseg_set (seg, subseg); | |
7325 | } | |
7326 | } | |
7327 | #endif | |
252b5132 | 7328 | \f |
252b5132 RH |
7329 | symbolS * |
7330 | md_undefined_symbol (name) | |
7331 | char *name; | |
7332 | { | |
18dc2407 ILT |
7333 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
7334 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
7335 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
7336 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
7337 | { |
7338 | if (!GOT_symbol) | |
7339 | { | |
7340 | if (symbol_find (name)) | |
7341 | as_bad (_("GOT already in symbol table")); | |
7342 | GOT_symbol = symbol_new (name, undefined_section, | |
7343 | (valueT) 0, &zero_address_frag); | |
7344 | }; | |
7345 | return GOT_symbol; | |
7346 | } | |
252b5132 RH |
7347 | return 0; |
7348 | } | |
7349 | ||
7350 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 7351 | |
252b5132 RH |
7352 | valueT |
7353 | md_section_align (segment, size) | |
ab9da554 | 7354 | segT segment ATTRIBUTE_UNUSED; |
252b5132 RH |
7355 | valueT size; |
7356 | { | |
4c63da97 AM |
7357 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
7358 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
7359 | { | |
7360 | /* For a.out, force the section size to be aligned. If we don't do | |
7361 | this, BFD will align it for us, but it will not write out the | |
7362 | final bytes of the section. This may be a bug in BFD, but it is | |
7363 | easier to fix it here since that is how the other a.out targets | |
7364 | work. */ | |
7365 | int align; | |
7366 | ||
7367 | align = bfd_get_section_alignment (stdoutput, segment); | |
7368 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
7369 | } | |
252b5132 RH |
7370 | #endif |
7371 | ||
7372 | return size; | |
7373 | } | |
7374 | ||
7375 | /* On the i386, PC-relative offsets are relative to the start of the | |
7376 | next instruction. That is, the address of the offset, plus its | |
7377 | size, since the offset is always the last part of the insn. */ | |
7378 | ||
7379 | long | |
e3bb37b5 | 7380 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
7381 | { |
7382 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
7383 | } | |
7384 | ||
7385 | #ifndef I386COFF | |
7386 | ||
7387 | static void | |
e3bb37b5 | 7388 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 7389 | { |
29b0f896 | 7390 | int temp; |
252b5132 | 7391 | |
8a75718c JB |
7392 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
7393 | if (IS_ELF) | |
7394 | obj_elf_section_change_hook (); | |
7395 | #endif | |
252b5132 RH |
7396 | temp = get_absolute_expression (); |
7397 | subseg_set (bss_section, (subsegT) temp); | |
7398 | demand_empty_rest_of_line (); | |
7399 | } | |
7400 | ||
7401 | #endif | |
7402 | ||
252b5132 | 7403 | void |
e3bb37b5 | 7404 | i386_validate_fix (fixS *fixp) |
252b5132 RH |
7405 | { |
7406 | if (fixp->fx_subsy && fixp->fx_subsy == GOT_symbol) | |
7407 | { | |
23df1078 JH |
7408 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
7409 | { | |
4fa24527 | 7410 | if (!object_64bit) |
23df1078 JH |
7411 | abort (); |
7412 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
7413 | } | |
7414 | else | |
7415 | { | |
4fa24527 | 7416 | if (!object_64bit) |
d6ab8113 JB |
7417 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; |
7418 | else | |
7419 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
23df1078 | 7420 | } |
252b5132 RH |
7421 | fixp->fx_subsy = 0; |
7422 | } | |
7423 | } | |
7424 | ||
252b5132 RH |
7425 | arelent * |
7426 | tc_gen_reloc (section, fixp) | |
ab9da554 | 7427 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
7428 | fixS *fixp; |
7429 | { | |
7430 | arelent *rel; | |
7431 | bfd_reloc_code_real_type code; | |
7432 | ||
7433 | switch (fixp->fx_r_type) | |
7434 | { | |
3e73aa7c JH |
7435 | case BFD_RELOC_X86_64_PLT32: |
7436 | case BFD_RELOC_X86_64_GOT32: | |
7437 | case BFD_RELOC_X86_64_GOTPCREL: | |
252b5132 RH |
7438 | case BFD_RELOC_386_PLT32: |
7439 | case BFD_RELOC_386_GOT32: | |
7440 | case BFD_RELOC_386_GOTOFF: | |
7441 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
7442 | case BFD_RELOC_386_TLS_GD: |
7443 | case BFD_RELOC_386_TLS_LDM: | |
7444 | case BFD_RELOC_386_TLS_LDO_32: | |
7445 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
7446 | case BFD_RELOC_386_TLS_IE: |
7447 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
7448 | case BFD_RELOC_386_TLS_LE_32: |
7449 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
7450 | case BFD_RELOC_386_TLS_GOTDESC: |
7451 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
7452 | case BFD_RELOC_X86_64_TLSGD: |
7453 | case BFD_RELOC_X86_64_TLSLD: | |
7454 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 7455 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
7456 | case BFD_RELOC_X86_64_GOTTPOFF: |
7457 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
7458 | case BFD_RELOC_X86_64_TPOFF64: |
7459 | case BFD_RELOC_X86_64_GOTOFF64: | |
7460 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
7461 | case BFD_RELOC_X86_64_GOT64: |
7462 | case BFD_RELOC_X86_64_GOTPCREL64: | |
7463 | case BFD_RELOC_X86_64_GOTPC64: | |
7464 | case BFD_RELOC_X86_64_GOTPLT64: | |
7465 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
7466 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
7467 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
7468 | case BFD_RELOC_RVA: |
7469 | case BFD_RELOC_VTABLE_ENTRY: | |
7470 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
7471 | #ifdef TE_PE |
7472 | case BFD_RELOC_32_SECREL: | |
7473 | #endif | |
252b5132 RH |
7474 | code = fixp->fx_r_type; |
7475 | break; | |
dbbaec26 L |
7476 | case BFD_RELOC_X86_64_32S: |
7477 | if (!fixp->fx_pcrel) | |
7478 | { | |
7479 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
7480 | code = fixp->fx_r_type; | |
7481 | break; | |
7482 | } | |
252b5132 | 7483 | default: |
93382f6d | 7484 | if (fixp->fx_pcrel) |
252b5132 | 7485 | { |
93382f6d AM |
7486 | switch (fixp->fx_size) |
7487 | { | |
7488 | default: | |
b091f402 AM |
7489 | as_bad_where (fixp->fx_file, fixp->fx_line, |
7490 | _("can not do %d byte pc-relative relocation"), | |
7491 | fixp->fx_size); | |
93382f6d AM |
7492 | code = BFD_RELOC_32_PCREL; |
7493 | break; | |
7494 | case 1: code = BFD_RELOC_8_PCREL; break; | |
7495 | case 2: code = BFD_RELOC_16_PCREL; break; | |
7496 | case 4: code = BFD_RELOC_32_PCREL; break; | |
d6ab8113 JB |
7497 | #ifdef BFD64 |
7498 | case 8: code = BFD_RELOC_64_PCREL; break; | |
7499 | #endif | |
93382f6d AM |
7500 | } |
7501 | } | |
7502 | else | |
7503 | { | |
7504 | switch (fixp->fx_size) | |
7505 | { | |
7506 | default: | |
b091f402 AM |
7507 | as_bad_where (fixp->fx_file, fixp->fx_line, |
7508 | _("can not do %d byte relocation"), | |
7509 | fixp->fx_size); | |
93382f6d AM |
7510 | code = BFD_RELOC_32; |
7511 | break; | |
7512 | case 1: code = BFD_RELOC_8; break; | |
7513 | case 2: code = BFD_RELOC_16; break; | |
7514 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 7515 | #ifdef BFD64 |
3e73aa7c | 7516 | case 8: code = BFD_RELOC_64; break; |
937149dd | 7517 | #endif |
93382f6d | 7518 | } |
252b5132 RH |
7519 | } |
7520 | break; | |
7521 | } | |
252b5132 | 7522 | |
d182319b JB |
7523 | if ((code == BFD_RELOC_32 |
7524 | || code == BFD_RELOC_32_PCREL | |
7525 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
7526 | && GOT_symbol |
7527 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 7528 | { |
4fa24527 | 7529 | if (!object_64bit) |
d6ab8113 JB |
7530 | code = BFD_RELOC_386_GOTPC; |
7531 | else | |
7532 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 7533 | } |
7b81dfbb AJ |
7534 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
7535 | && GOT_symbol | |
7536 | && fixp->fx_addsy == GOT_symbol) | |
7537 | { | |
7538 | code = BFD_RELOC_X86_64_GOTPC64; | |
7539 | } | |
252b5132 RH |
7540 | |
7541 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
7542 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
7543 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
7544 | |
7545 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 7546 | |
3e73aa7c JH |
7547 | if (!use_rela_relocations) |
7548 | { | |
7549 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
7550 | vtable entry to be used in the relocation's section offset. */ | |
7551 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
7552 | rel->address = fixp->fx_offset; | |
252b5132 | 7553 | |
c6682705 | 7554 | rel->addend = 0; |
3e73aa7c JH |
7555 | } |
7556 | /* Use the rela in 64bit mode. */ | |
252b5132 | 7557 | else |
3e73aa7c | 7558 | { |
062cd5e7 AS |
7559 | if (!fixp->fx_pcrel) |
7560 | rel->addend = fixp->fx_offset; | |
7561 | else | |
7562 | switch (code) | |
7563 | { | |
7564 | case BFD_RELOC_X86_64_PLT32: | |
7565 | case BFD_RELOC_X86_64_GOT32: | |
7566 | case BFD_RELOC_X86_64_GOTPCREL: | |
bffbf940 JJ |
7567 | case BFD_RELOC_X86_64_TLSGD: |
7568 | case BFD_RELOC_X86_64_TLSLD: | |
7569 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
7570 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
7571 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
7572 | rel->addend = fixp->fx_offset - fixp->fx_size; |
7573 | break; | |
7574 | default: | |
7575 | rel->addend = (section->vma | |
7576 | - fixp->fx_size | |
7577 | + fixp->fx_addnumber | |
7578 | + md_pcrel_from (fixp)); | |
7579 | break; | |
7580 | } | |
3e73aa7c JH |
7581 | } |
7582 | ||
252b5132 RH |
7583 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
7584 | if (rel->howto == NULL) | |
7585 | { | |
7586 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 7587 | _("cannot represent relocation type %s"), |
252b5132 RH |
7588 | bfd_get_reloc_code_name (code)); |
7589 | /* Set howto to a garbage value so that we can keep going. */ | |
7590 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
7591 | assert (rel->howto != NULL); | |
7592 | } | |
7593 | ||
7594 | return rel; | |
7595 | } | |
7596 | ||
64a0c779 DN |
7597 | \f |
7598 | /* Parse operands using Intel syntax. This implements a recursive descent | |
7599 | parser based on the BNF grammar published in Appendix B of the MASM 6.1 | |
7600 | Programmer's Guide. | |
7601 | ||
7602 | FIXME: We do not recognize the full operand grammar defined in the MASM | |
7603 | documentation. In particular, all the structure/union and | |
7604 | high-level macro operands are missing. | |
7605 | ||
7606 | Uppercase words are terminals, lower case words are non-terminals. | |
7607 | Objects surrounded by double brackets '[[' ']]' are optional. Vertical | |
7608 | bars '|' denote choices. Most grammar productions are implemented in | |
7609 | functions called 'intel_<production>'. | |
7610 | ||
7611 | Initial production is 'expr'. | |
7612 | ||
9306ca4a | 7613 | addOp + | - |
64a0c779 DN |
7614 | |
7615 | alpha [a-zA-Z] | |
7616 | ||
9306ca4a JB |
7617 | binOp & | AND | \| | OR | ^ | XOR |
7618 | ||
64a0c779 DN |
7619 | byteRegister AL | AH | BL | BH | CL | CH | DL | DH |
7620 | ||
7621 | constant digits [[ radixOverride ]] | |
7622 | ||
9306ca4a | 7623 | dataType BYTE | WORD | DWORD | FWORD | QWORD | TBYTE | OWORD | XMMWORD |
64a0c779 DN |
7624 | |
7625 | digits decdigit | |
b77a7acd AJ |
7626 | | digits decdigit |
7627 | | digits hexdigit | |
64a0c779 DN |
7628 | |
7629 | decdigit [0-9] | |
7630 | ||
9306ca4a JB |
7631 | e04 e04 addOp e05 |
7632 | | e05 | |
7633 | ||
7634 | e05 e05 binOp e06 | |
b77a7acd | 7635 | | e06 |
64a0c779 DN |
7636 | |
7637 | e06 e06 mulOp e09 | |
b77a7acd | 7638 | | e09 |
64a0c779 DN |
7639 | |
7640 | e09 OFFSET e10 | |
a724f0f4 JB |
7641 | | SHORT e10 |
7642 | | + e10 | |
7643 | | - e10 | |
9306ca4a JB |
7644 | | ~ e10 |
7645 | | NOT e10 | |
64a0c779 DN |
7646 | | e09 PTR e10 |
7647 | | e09 : e10 | |
7648 | | e10 | |
7649 | ||
7650 | e10 e10 [ expr ] | |
b77a7acd | 7651 | | e11 |
64a0c779 DN |
7652 | |
7653 | e11 ( expr ) | |
b77a7acd | 7654 | | [ expr ] |
64a0c779 DN |
7655 | | constant |
7656 | | dataType | |
7657 | | id | |
7658 | | $ | |
7659 | | register | |
7660 | ||
a724f0f4 | 7661 | => expr expr cmpOp e04 |
9306ca4a | 7662 | | e04 |
64a0c779 DN |
7663 | |
7664 | gpRegister AX | EAX | BX | EBX | CX | ECX | DX | EDX | |
b77a7acd | 7665 | | BP | EBP | SP | ESP | DI | EDI | SI | ESI |
64a0c779 DN |
7666 | |
7667 | hexdigit a | b | c | d | e | f | |
b77a7acd | 7668 | | A | B | C | D | E | F |
64a0c779 DN |
7669 | |
7670 | id alpha | |
b77a7acd | 7671 | | id alpha |
64a0c779 DN |
7672 | | id decdigit |
7673 | ||
9306ca4a | 7674 | mulOp * | / | % | MOD | << | SHL | >> | SHR |
64a0c779 DN |
7675 | |
7676 | quote " | ' | |
7677 | ||
7678 | register specialRegister | |
b77a7acd | 7679 | | gpRegister |
64a0c779 DN |
7680 | | byteRegister |
7681 | ||
7682 | segmentRegister CS | DS | ES | FS | GS | SS | |
7683 | ||
9306ca4a | 7684 | specialRegister CR0 | CR2 | CR3 | CR4 |
b77a7acd | 7685 | | DR0 | DR1 | DR2 | DR3 | DR6 | DR7 |
64a0c779 DN |
7686 | | TR3 | TR4 | TR5 | TR6 | TR7 |
7687 | ||
64a0c779 DN |
7688 | We simplify the grammar in obvious places (e.g., register parsing is |
7689 | done by calling parse_register) and eliminate immediate left recursion | |
7690 | to implement a recursive-descent parser. | |
7691 | ||
a724f0f4 JB |
7692 | expr e04 expr' |
7693 | ||
7694 | expr' cmpOp e04 expr' | |
7695 | | Empty | |
9306ca4a JB |
7696 | |
7697 | e04 e05 e04' | |
7698 | ||
7699 | e04' addOp e05 e04' | |
7700 | | Empty | |
64a0c779 DN |
7701 | |
7702 | e05 e06 e05' | |
7703 | ||
9306ca4a | 7704 | e05' binOp e06 e05' |
b77a7acd | 7705 | | Empty |
64a0c779 DN |
7706 | |
7707 | e06 e09 e06' | |
7708 | ||
7709 | e06' mulOp e09 e06' | |
b77a7acd | 7710 | | Empty |
64a0c779 DN |
7711 | |
7712 | e09 OFFSET e10 e09' | |
a724f0f4 JB |
7713 | | SHORT e10' |
7714 | | + e10' | |
7715 | | - e10' | |
7716 | | ~ e10' | |
7717 | | NOT e10' | |
b77a7acd | 7718 | | e10 e09' |
64a0c779 DN |
7719 | |
7720 | e09' PTR e10 e09' | |
b77a7acd | 7721 | | : e10 e09' |
64a0c779 DN |
7722 | | Empty |
7723 | ||
7724 | e10 e11 e10' | |
7725 | ||
7726 | e10' [ expr ] e10' | |
b77a7acd | 7727 | | Empty |
64a0c779 DN |
7728 | |
7729 | e11 ( expr ) | |
b77a7acd | 7730 | | [ expr ] |
64a0c779 DN |
7731 | | BYTE |
7732 | | WORD | |
7733 | | DWORD | |
9306ca4a | 7734 | | FWORD |
64a0c779 | 7735 | | QWORD |
9306ca4a JB |
7736 | | TBYTE |
7737 | | OWORD | |
7738 | | XMMWORD | |
64a0c779 DN |
7739 | | . |
7740 | | $ | |
7741 | | register | |
7742 | | id | |
7743 | | constant */ | |
7744 | ||
7745 | /* Parsing structure for the intel syntax parser. Used to implement the | |
7746 | semantic actions for the operand grammar. */ | |
7747 | struct intel_parser_s | |
7748 | { | |
7749 | char *op_string; /* The string being parsed. */ | |
7750 | int got_a_float; /* Whether the operand is a float. */ | |
4a1805b1 | 7751 | int op_modifier; /* Operand modifier. */ |
64a0c779 | 7752 | int is_mem; /* 1 if operand is memory reference. */ |
4eed87de AM |
7753 | int in_offset; /* >=1 if parsing operand of offset. */ |
7754 | int in_bracket; /* >=1 if parsing operand in brackets. */ | |
64a0c779 DN |
7755 | const reg_entry *reg; /* Last register reference found. */ |
7756 | char *disp; /* Displacement string being built. */ | |
a724f0f4 | 7757 | char *next_operand; /* Resume point when splitting operands. */ |
64a0c779 DN |
7758 | }; |
7759 | ||
7760 | static struct intel_parser_s intel_parser; | |
7761 | ||
7762 | /* Token structure for parsing intel syntax. */ | |
7763 | struct intel_token | |
7764 | { | |
7765 | int code; /* Token code. */ | |
7766 | const reg_entry *reg; /* Register entry for register tokens. */ | |
7767 | char *str; /* String representation. */ | |
7768 | }; | |
7769 | ||
7770 | static struct intel_token cur_token, prev_token; | |
7771 | ||
50705ef4 AM |
7772 | /* Token codes for the intel parser. Since T_SHORT is already used |
7773 | by COFF, undefine it first to prevent a warning. */ | |
64a0c779 DN |
7774 | #define T_NIL -1 |
7775 | #define T_CONST 1 | |
7776 | #define T_REG 2 | |
7777 | #define T_BYTE 3 | |
7778 | #define T_WORD 4 | |
9306ca4a JB |
7779 | #define T_DWORD 5 |
7780 | #define T_FWORD 6 | |
7781 | #define T_QWORD 7 | |
7782 | #define T_TBYTE 8 | |
7783 | #define T_XMMWORD 9 | |
50705ef4 | 7784 | #undef T_SHORT |
9306ca4a JB |
7785 | #define T_SHORT 10 |
7786 | #define T_OFFSET 11 | |
7787 | #define T_PTR 12 | |
7788 | #define T_ID 13 | |
7789 | #define T_SHL 14 | |
7790 | #define T_SHR 15 | |
64a0c779 DN |
7791 | |
7792 | /* Prototypes for intel parser functions. */ | |
e3bb37b5 L |
7793 | static int intel_match_token (int); |
7794 | static void intel_putback_token (void); | |
7795 | static void intel_get_token (void); | |
7796 | static int intel_expr (void); | |
7797 | static int intel_e04 (void); | |
7798 | static int intel_e05 (void); | |
7799 | static int intel_e06 (void); | |
7800 | static int intel_e09 (void); | |
7801 | static int intel_e10 (void); | |
7802 | static int intel_e11 (void); | |
64a0c779 | 7803 | |
64a0c779 | 7804 | static int |
e3bb37b5 | 7805 | i386_intel_operand (char *operand_string, int got_a_float) |
64a0c779 DN |
7806 | { |
7807 | int ret; | |
7808 | char *p; | |
7809 | ||
a724f0f4 JB |
7810 | p = intel_parser.op_string = xstrdup (operand_string); |
7811 | intel_parser.disp = (char *) xmalloc (strlen (operand_string) + 1); | |
7812 | ||
7813 | for (;;) | |
64a0c779 | 7814 | { |
a724f0f4 JB |
7815 | /* Initialize token holders. */ |
7816 | cur_token.code = prev_token.code = T_NIL; | |
7817 | cur_token.reg = prev_token.reg = NULL; | |
7818 | cur_token.str = prev_token.str = NULL; | |
7819 | ||
7820 | /* Initialize parser structure. */ | |
7821 | intel_parser.got_a_float = got_a_float; | |
7822 | intel_parser.op_modifier = 0; | |
7823 | intel_parser.is_mem = 0; | |
7824 | intel_parser.in_offset = 0; | |
7825 | intel_parser.in_bracket = 0; | |
7826 | intel_parser.reg = NULL; | |
7827 | intel_parser.disp[0] = '\0'; | |
7828 | intel_parser.next_operand = NULL; | |
7829 | ||
7830 | /* Read the first token and start the parser. */ | |
7831 | intel_get_token (); | |
7832 | ret = intel_expr (); | |
7833 | ||
7834 | if (!ret) | |
7835 | break; | |
7836 | ||
9306ca4a JB |
7837 | if (cur_token.code != T_NIL) |
7838 | { | |
7839 | as_bad (_("invalid operand for '%s' ('%s' unexpected)"), | |
7840 | current_templates->start->name, cur_token.str); | |
7841 | ret = 0; | |
7842 | } | |
64a0c779 DN |
7843 | /* If we found a memory reference, hand it over to i386_displacement |
7844 | to fill in the rest of the operand fields. */ | |
9306ca4a | 7845 | else if (intel_parser.is_mem) |
64a0c779 DN |
7846 | { |
7847 | if ((i.mem_operands == 1 | |
40fb9820 | 7848 | && !current_templates->start->opcode_modifier.isstring) |
64a0c779 DN |
7849 | || i.mem_operands == 2) |
7850 | { | |
7851 | as_bad (_("too many memory references for '%s'"), | |
7852 | current_templates->start->name); | |
7853 | ret = 0; | |
7854 | } | |
7855 | else | |
7856 | { | |
7857 | char *s = intel_parser.disp; | |
7858 | i.mem_operands++; | |
7859 | ||
a724f0f4 JB |
7860 | if (!quiet_warnings && intel_parser.is_mem < 0) |
7861 | /* See the comments in intel_bracket_expr. */ | |
7862 | as_warn (_("Treating `%s' as memory reference"), operand_string); | |
7863 | ||
64a0c779 DN |
7864 | /* Add the displacement expression. */ |
7865 | if (*s != '\0') | |
a4622f40 AM |
7866 | ret = i386_displacement (s, s + strlen (s)); |
7867 | if (ret) | |
a724f0f4 JB |
7868 | { |
7869 | /* Swap base and index in 16-bit memory operands like | |
7870 | [si+bx]. Since i386_index_check is also used in AT&T | |
7871 | mode we have to do that here. */ | |
7872 | if (i.base_reg | |
7873 | && i.index_reg | |
40fb9820 L |
7874 | && i.base_reg->reg_type.bitfield.reg16 |
7875 | && i.index_reg->reg_type.bitfield.reg16 | |
a724f0f4 JB |
7876 | && i.base_reg->reg_num >= 6 |
7877 | && i.index_reg->reg_num < 6) | |
7878 | { | |
7879 | const reg_entry *base = i.index_reg; | |
7880 | ||
7881 | i.index_reg = i.base_reg; | |
7882 | i.base_reg = base; | |
7883 | } | |
7884 | ret = i386_index_check (operand_string); | |
7885 | } | |
64a0c779 DN |
7886 | } |
7887 | } | |
7888 | ||
7889 | /* Constant and OFFSET expressions are handled by i386_immediate. */ | |
a724f0f4 | 7890 | else if ((intel_parser.op_modifier & (1 << T_OFFSET)) |
64a0c779 DN |
7891 | || intel_parser.reg == NULL) |
7892 | ret = i386_immediate (intel_parser.disp); | |
a724f0f4 JB |
7893 | |
7894 | if (intel_parser.next_operand && this_operand >= MAX_OPERANDS - 1) | |
4eed87de | 7895 | ret = 0; |
a724f0f4 JB |
7896 | if (!ret || !intel_parser.next_operand) |
7897 | break; | |
7898 | intel_parser.op_string = intel_parser.next_operand; | |
7899 | this_operand = i.operands++; | |
64a0c779 DN |
7900 | } |
7901 | ||
7902 | free (p); | |
7903 | free (intel_parser.disp); | |
7904 | ||
7905 | return ret; | |
7906 | } | |
7907 | ||
a724f0f4 JB |
7908 | #define NUM_ADDRESS_REGS (!!i.base_reg + !!i.index_reg) |
7909 | ||
7910 | /* expr e04 expr' | |
7911 | ||
7912 | expr' cmpOp e04 expr' | |
7913 | | Empty */ | |
64a0c779 | 7914 | static int |
e3bb37b5 | 7915 | intel_expr (void) |
64a0c779 | 7916 | { |
a724f0f4 JB |
7917 | /* XXX Implement the comparison operators. */ |
7918 | return intel_e04 (); | |
9306ca4a JB |
7919 | } |
7920 | ||
a724f0f4 | 7921 | /* e04 e05 e04' |
9306ca4a | 7922 | |
a724f0f4 | 7923 | e04' addOp e05 e04' |
9306ca4a JB |
7924 | | Empty */ |
7925 | static int | |
e3bb37b5 | 7926 | intel_e04 (void) |
9306ca4a | 7927 | { |
a724f0f4 | 7928 | int nregs = -1; |
9306ca4a | 7929 | |
a724f0f4 | 7930 | for (;;) |
9306ca4a | 7931 | { |
a724f0f4 JB |
7932 | if (!intel_e05()) |
7933 | return 0; | |
9306ca4a | 7934 | |
a724f0f4 JB |
7935 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
7936 | i.base_reg = i386_regtab + REGNAM_AL; /* al is invalid as base */ | |
9306ca4a | 7937 | |
a724f0f4 JB |
7938 | if (cur_token.code == '+') |
7939 | nregs = -1; | |
7940 | else if (cur_token.code == '-') | |
7941 | nregs = NUM_ADDRESS_REGS; | |
7942 | else | |
7943 | return 1; | |
64a0c779 | 7944 | |
a724f0f4 JB |
7945 | strcat (intel_parser.disp, cur_token.str); |
7946 | intel_match_token (cur_token.code); | |
7947 | } | |
64a0c779 DN |
7948 | } |
7949 | ||
64a0c779 DN |
7950 | /* e05 e06 e05' |
7951 | ||
9306ca4a | 7952 | e05' binOp e06 e05' |
64a0c779 DN |
7953 | | Empty */ |
7954 | static int | |
e3bb37b5 | 7955 | intel_e05 (void) |
64a0c779 | 7956 | { |
a724f0f4 | 7957 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 7958 | |
a724f0f4 | 7959 | for (;;) |
64a0c779 | 7960 | { |
a724f0f4 JB |
7961 | if (!intel_e06()) |
7962 | return 0; | |
7963 | ||
4eed87de AM |
7964 | if (cur_token.code == '&' |
7965 | || cur_token.code == '|' | |
7966 | || cur_token.code == '^') | |
a724f0f4 JB |
7967 | { |
7968 | char str[2]; | |
7969 | ||
7970 | str[0] = cur_token.code; | |
7971 | str[1] = 0; | |
7972 | strcat (intel_parser.disp, str); | |
7973 | } | |
7974 | else | |
7975 | break; | |
9306ca4a | 7976 | |
64a0c779 DN |
7977 | intel_match_token (cur_token.code); |
7978 | ||
a724f0f4 JB |
7979 | if (nregs < 0) |
7980 | nregs = ~nregs; | |
64a0c779 | 7981 | } |
a724f0f4 JB |
7982 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
7983 | i.base_reg = i386_regtab + REGNAM_AL + 1; /* cl is invalid as base */ | |
7984 | return 1; | |
4a1805b1 | 7985 | } |
64a0c779 DN |
7986 | |
7987 | /* e06 e09 e06' | |
7988 | ||
7989 | e06' mulOp e09 e06' | |
b77a7acd | 7990 | | Empty */ |
64a0c779 | 7991 | static int |
e3bb37b5 | 7992 | intel_e06 (void) |
64a0c779 | 7993 | { |
a724f0f4 | 7994 | int nregs = ~NUM_ADDRESS_REGS; |
64a0c779 | 7995 | |
a724f0f4 | 7996 | for (;;) |
64a0c779 | 7997 | { |
a724f0f4 JB |
7998 | if (!intel_e09()) |
7999 | return 0; | |
9306ca4a | 8000 | |
4eed87de AM |
8001 | if (cur_token.code == '*' |
8002 | || cur_token.code == '/' | |
8003 | || cur_token.code == '%') | |
a724f0f4 JB |
8004 | { |
8005 | char str[2]; | |
9306ca4a | 8006 | |
a724f0f4 JB |
8007 | str[0] = cur_token.code; |
8008 | str[1] = 0; | |
8009 | strcat (intel_parser.disp, str); | |
8010 | } | |
8011 | else if (cur_token.code == T_SHL) | |
8012 | strcat (intel_parser.disp, "<<"); | |
8013 | else if (cur_token.code == T_SHR) | |
8014 | strcat (intel_parser.disp, ">>"); | |
8015 | else | |
8016 | break; | |
9306ca4a | 8017 | |
64e74474 | 8018 | intel_match_token (cur_token.code); |
64a0c779 | 8019 | |
a724f0f4 JB |
8020 | if (nregs < 0) |
8021 | nregs = ~nregs; | |
64a0c779 | 8022 | } |
a724f0f4 JB |
8023 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
8024 | i.base_reg = i386_regtab + REGNAM_AL + 2; /* dl is invalid as base */ | |
8025 | return 1; | |
64a0c779 DN |
8026 | } |
8027 | ||
a724f0f4 JB |
8028 | /* e09 OFFSET e09 |
8029 | | SHORT e09 | |
8030 | | + e09 | |
8031 | | - e09 | |
8032 | | ~ e09 | |
8033 | | NOT e09 | |
9306ca4a JB |
8034 | | e10 e09' |
8035 | ||
64a0c779 | 8036 | e09' PTR e10 e09' |
b77a7acd | 8037 | | : e10 e09' |
64a0c779 DN |
8038 | | Empty */ |
8039 | static int | |
e3bb37b5 | 8040 | intel_e09 (void) |
64a0c779 | 8041 | { |
a724f0f4 JB |
8042 | int nregs = ~NUM_ADDRESS_REGS; |
8043 | int in_offset = 0; | |
8044 | ||
8045 | for (;;) | |
64a0c779 | 8046 | { |
a724f0f4 JB |
8047 | /* Don't consume constants here. */ |
8048 | if (cur_token.code == '+' || cur_token.code == '-') | |
8049 | { | |
8050 | /* Need to look one token ahead - if the next token | |
8051 | is a constant, the current token is its sign. */ | |
8052 | int next_code; | |
8053 | ||
8054 | intel_match_token (cur_token.code); | |
8055 | next_code = cur_token.code; | |
8056 | intel_putback_token (); | |
8057 | if (next_code == T_CONST) | |
8058 | break; | |
8059 | } | |
8060 | ||
8061 | /* e09 OFFSET e09 */ | |
8062 | if (cur_token.code == T_OFFSET) | |
8063 | { | |
8064 | if (!in_offset++) | |
8065 | ++intel_parser.in_offset; | |
8066 | } | |
8067 | ||
8068 | /* e09 SHORT e09 */ | |
8069 | else if (cur_token.code == T_SHORT) | |
8070 | intel_parser.op_modifier |= 1 << T_SHORT; | |
8071 | ||
8072 | /* e09 + e09 */ | |
8073 | else if (cur_token.code == '+') | |
8074 | strcat (intel_parser.disp, "+"); | |
8075 | ||
8076 | /* e09 - e09 | |
8077 | | ~ e09 | |
8078 | | NOT e09 */ | |
8079 | else if (cur_token.code == '-' || cur_token.code == '~') | |
8080 | { | |
8081 | char str[2]; | |
64a0c779 | 8082 | |
a724f0f4 JB |
8083 | if (nregs < 0) |
8084 | nregs = ~nregs; | |
8085 | str[0] = cur_token.code; | |
8086 | str[1] = 0; | |
8087 | strcat (intel_parser.disp, str); | |
8088 | } | |
8089 | ||
8090 | /* e09 e10 e09' */ | |
8091 | else | |
8092 | break; | |
8093 | ||
8094 | intel_match_token (cur_token.code); | |
64a0c779 DN |
8095 | } |
8096 | ||
a724f0f4 | 8097 | for (;;) |
9306ca4a | 8098 | { |
a724f0f4 JB |
8099 | if (!intel_e10 ()) |
8100 | return 0; | |
9306ca4a | 8101 | |
a724f0f4 JB |
8102 | /* e09' PTR e10 e09' */ |
8103 | if (cur_token.code == T_PTR) | |
8104 | { | |
8105 | char suffix; | |
9306ca4a | 8106 | |
a724f0f4 JB |
8107 | if (prev_token.code == T_BYTE) |
8108 | suffix = BYTE_MNEM_SUFFIX; | |
9306ca4a | 8109 | |
a724f0f4 JB |
8110 | else if (prev_token.code == T_WORD) |
8111 | { | |
8112 | if (current_templates->start->name[0] == 'l' | |
8113 | && current_templates->start->name[2] == 's' | |
8114 | && current_templates->start->name[3] == 0) | |
8115 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
8116 | else if (intel_parser.got_a_float == 2) /* "fi..." */ | |
8117 | suffix = SHORT_MNEM_SUFFIX; | |
8118 | else | |
8119 | suffix = WORD_MNEM_SUFFIX; | |
8120 | } | |
64a0c779 | 8121 | |
a724f0f4 JB |
8122 | else if (prev_token.code == T_DWORD) |
8123 | { | |
8124 | if (current_templates->start->name[0] == 'l' | |
8125 | && current_templates->start->name[2] == 's' | |
8126 | && current_templates->start->name[3] == 0) | |
8127 | suffix = WORD_MNEM_SUFFIX; | |
8128 | else if (flag_code == CODE_16BIT | |
40fb9820 L |
8129 | && (current_templates->start->opcode_modifier.jump |
8130 | || current_templates->start->opcode_modifier.jumpdword)) | |
a724f0f4 JB |
8131 | suffix = LONG_DOUBLE_MNEM_SUFFIX; |
8132 | else if (intel_parser.got_a_float == 1) /* "f..." */ | |
8133 | suffix = SHORT_MNEM_SUFFIX; | |
8134 | else | |
8135 | suffix = LONG_MNEM_SUFFIX; | |
8136 | } | |
9306ca4a | 8137 | |
a724f0f4 JB |
8138 | else if (prev_token.code == T_FWORD) |
8139 | { | |
8140 | if (current_templates->start->name[0] == 'l' | |
8141 | && current_templates->start->name[2] == 's' | |
8142 | && current_templates->start->name[3] == 0) | |
8143 | suffix = LONG_MNEM_SUFFIX; | |
8144 | else if (!intel_parser.got_a_float) | |
8145 | { | |
8146 | if (flag_code == CODE_16BIT) | |
8147 | add_prefix (DATA_PREFIX_OPCODE); | |
8148 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
8149 | } | |
8150 | else | |
8151 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
8152 | } | |
64a0c779 | 8153 | |
a724f0f4 JB |
8154 | else if (prev_token.code == T_QWORD) |
8155 | { | |
8156 | if (intel_parser.got_a_float == 1) /* "f..." */ | |
8157 | suffix = LONG_MNEM_SUFFIX; | |
8158 | else | |
8159 | suffix = QWORD_MNEM_SUFFIX; | |
8160 | } | |
64a0c779 | 8161 | |
a724f0f4 JB |
8162 | else if (prev_token.code == T_TBYTE) |
8163 | { | |
8164 | if (intel_parser.got_a_float == 1) | |
8165 | suffix = LONG_DOUBLE_MNEM_SUFFIX; | |
8166 | else | |
8167 | suffix = BYTE_MNEM_SUFFIX; /* so it will cause an error */ | |
8168 | } | |
9306ca4a | 8169 | |
a724f0f4 | 8170 | else if (prev_token.code == T_XMMWORD) |
9306ca4a | 8171 | { |
a724f0f4 JB |
8172 | /* XXX ignored for now, but accepted since gcc uses it */ |
8173 | suffix = 0; | |
9306ca4a | 8174 | } |
64a0c779 | 8175 | |
f16b83df | 8176 | else |
a724f0f4 JB |
8177 | { |
8178 | as_bad (_("Unknown operand modifier `%s'"), prev_token.str); | |
8179 | return 0; | |
8180 | } | |
8181 | ||
435acd52 JB |
8182 | /* Operands for jump/call using 'ptr' notation denote absolute |
8183 | addresses. */ | |
40fb9820 L |
8184 | if (current_templates->start->opcode_modifier.jump |
8185 | || current_templates->start->opcode_modifier.jumpdword) | |
8186 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 8187 | |
a724f0f4 JB |
8188 | if (current_templates->start->base_opcode == 0x8d /* lea */) |
8189 | ; | |
8190 | else if (!i.suffix) | |
8191 | i.suffix = suffix; | |
8192 | else if (i.suffix != suffix) | |
8193 | { | |
8194 | as_bad (_("Conflicting operand modifiers")); | |
8195 | return 0; | |
8196 | } | |
64a0c779 | 8197 | |
9306ca4a JB |
8198 | } |
8199 | ||
a724f0f4 JB |
8200 | /* e09' : e10 e09' */ |
8201 | else if (cur_token.code == ':') | |
9306ca4a | 8202 | { |
a724f0f4 JB |
8203 | if (prev_token.code != T_REG) |
8204 | { | |
8205 | /* While {call,jmp} SSSS:OOOO is MASM syntax only when SSSS is a | |
8206 | segment/group identifier (which we don't have), using comma | |
8207 | as the operand separator there is even less consistent, since | |
8208 | there all branches only have a single operand. */ | |
8209 | if (this_operand != 0 | |
8210 | || intel_parser.in_offset | |
8211 | || intel_parser.in_bracket | |
40fb9820 L |
8212 | || (!current_templates->start->opcode_modifier.jump |
8213 | && !current_templates->start->opcode_modifier.jumpdword | |
8214 | && !current_templates->start->opcode_modifier.jumpintersegment | |
8215 | && !current_templates->start->operand_types[0].bitfield.jumpabsolute)) | |
a724f0f4 JB |
8216 | return intel_match_token (T_NIL); |
8217 | /* Remember the start of the 2nd operand and terminate 1st | |
8218 | operand here. | |
8219 | XXX This isn't right, yet (when SSSS:OOOO is right operand of | |
8220 | another expression), but it gets at least the simplest case | |
8221 | (a plain number or symbol on the left side) right. */ | |
8222 | intel_parser.next_operand = intel_parser.op_string; | |
8223 | *--intel_parser.op_string = '\0'; | |
8224 | return intel_match_token (':'); | |
8225 | } | |
9306ca4a | 8226 | } |
64a0c779 | 8227 | |
a724f0f4 | 8228 | /* e09' Empty */ |
64a0c779 | 8229 | else |
a724f0f4 | 8230 | break; |
64a0c779 | 8231 | |
a724f0f4 JB |
8232 | intel_match_token (cur_token.code); |
8233 | ||
8234 | } | |
8235 | ||
8236 | if (in_offset) | |
8237 | { | |
8238 | --intel_parser.in_offset; | |
8239 | if (nregs < 0) | |
8240 | nregs = ~nregs; | |
8241 | if (NUM_ADDRESS_REGS > nregs) | |
9306ca4a | 8242 | { |
a724f0f4 | 8243 | as_bad (_("Invalid operand to `OFFSET'")); |
9306ca4a JB |
8244 | return 0; |
8245 | } | |
a724f0f4 JB |
8246 | intel_parser.op_modifier |= 1 << T_OFFSET; |
8247 | } | |
9306ca4a | 8248 | |
a724f0f4 JB |
8249 | if (nregs >= 0 && NUM_ADDRESS_REGS > nregs) |
8250 | i.base_reg = i386_regtab + REGNAM_AL + 3; /* bl is invalid as base */ | |
8251 | return 1; | |
8252 | } | |
64a0c779 | 8253 | |
a724f0f4 | 8254 | static int |
e3bb37b5 | 8255 | intel_bracket_expr (void) |
a724f0f4 JB |
8256 | { |
8257 | int was_offset = intel_parser.op_modifier & (1 << T_OFFSET); | |
8258 | const char *start = intel_parser.op_string; | |
8259 | int len; | |
8260 | ||
8261 | if (i.op[this_operand].regs) | |
8262 | return intel_match_token (T_NIL); | |
8263 | ||
8264 | intel_match_token ('['); | |
8265 | ||
8266 | /* Mark as a memory operand only if it's not already known to be an | |
8267 | offset expression. If it's an offset expression, we need to keep | |
8268 | the brace in. */ | |
8269 | if (!intel_parser.in_offset) | |
8270 | { | |
8271 | ++intel_parser.in_bracket; | |
435acd52 JB |
8272 | |
8273 | /* Operands for jump/call inside brackets denote absolute addresses. */ | |
40fb9820 L |
8274 | if (current_templates->start->opcode_modifier.jump |
8275 | || current_templates->start->opcode_modifier.jumpdword) | |
8276 | i.types[this_operand].bitfield.jumpabsolute = 1; | |
435acd52 | 8277 | |
a724f0f4 JB |
8278 | /* Unfortunately gas always diverged from MASM in a respect that can't |
8279 | be easily fixed without risking to break code sequences likely to be | |
8280 | encountered (the testsuite even check for this): MASM doesn't consider | |
8281 | an expression inside brackets unconditionally as a memory reference. | |
8282 | When that is e.g. a constant, an offset expression, or the sum of the | |
8283 | two, this is still taken as a constant load. gas, however, always | |
8284 | treated these as memory references. As a compromise, we'll try to make | |
8285 | offset expressions inside brackets work the MASM way (since that's | |
8286 | less likely to be found in real world code), but make constants alone | |
8287 | continue to work the traditional gas way. In either case, issue a | |
8288 | warning. */ | |
8289 | intel_parser.op_modifier &= ~was_offset; | |
64a0c779 | 8290 | } |
a724f0f4 | 8291 | else |
64e74474 | 8292 | strcat (intel_parser.disp, "["); |
a724f0f4 JB |
8293 | |
8294 | /* Add a '+' to the displacement string if necessary. */ | |
8295 | if (*intel_parser.disp != '\0' | |
8296 | && *(intel_parser.disp + strlen (intel_parser.disp) - 1) != '+') | |
8297 | strcat (intel_parser.disp, "+"); | |
64a0c779 | 8298 | |
a724f0f4 JB |
8299 | if (intel_expr () |
8300 | && (len = intel_parser.op_string - start - 1, | |
8301 | intel_match_token (']'))) | |
64a0c779 | 8302 | { |
a724f0f4 JB |
8303 | /* Preserve brackets when the operand is an offset expression. */ |
8304 | if (intel_parser.in_offset) | |
8305 | strcat (intel_parser.disp, "]"); | |
8306 | else | |
8307 | { | |
8308 | --intel_parser.in_bracket; | |
8309 | if (i.base_reg || i.index_reg) | |
8310 | intel_parser.is_mem = 1; | |
8311 | if (!intel_parser.is_mem) | |
8312 | { | |
8313 | if (!(intel_parser.op_modifier & (1 << T_OFFSET))) | |
8314 | /* Defer the warning until all of the operand was parsed. */ | |
8315 | intel_parser.is_mem = -1; | |
8316 | else if (!quiet_warnings) | |
4eed87de AM |
8317 | as_warn (_("`[%.*s]' taken to mean just `%.*s'"), |
8318 | len, start, len, start); | |
a724f0f4 JB |
8319 | } |
8320 | } | |
8321 | intel_parser.op_modifier |= was_offset; | |
64a0c779 | 8322 | |
a724f0f4 | 8323 | return 1; |
64a0c779 | 8324 | } |
a724f0f4 | 8325 | return 0; |
64a0c779 DN |
8326 | } |
8327 | ||
8328 | /* e10 e11 e10' | |
8329 | ||
8330 | e10' [ expr ] e10' | |
b77a7acd | 8331 | | Empty */ |
64a0c779 | 8332 | static int |
e3bb37b5 | 8333 | intel_e10 (void) |
64a0c779 | 8334 | { |
a724f0f4 JB |
8335 | if (!intel_e11 ()) |
8336 | return 0; | |
64a0c779 | 8337 | |
a724f0f4 | 8338 | while (cur_token.code == '[') |
64a0c779 | 8339 | { |
a724f0f4 | 8340 | if (!intel_bracket_expr ()) |
21d6c4af | 8341 | return 0; |
64a0c779 DN |
8342 | } |
8343 | ||
a724f0f4 | 8344 | return 1; |
64a0c779 DN |
8345 | } |
8346 | ||
64a0c779 | 8347 | /* e11 ( expr ) |
b77a7acd | 8348 | | [ expr ] |
64a0c779 DN |
8349 | | BYTE |
8350 | | WORD | |
8351 | | DWORD | |
9306ca4a | 8352 | | FWORD |
64a0c779 | 8353 | | QWORD |
9306ca4a JB |
8354 | | TBYTE |
8355 | | OWORD | |
8356 | | XMMWORD | |
4a1805b1 | 8357 | | $ |
64a0c779 DN |
8358 | | . |
8359 | | register | |
8360 | | id | |
8361 | | constant */ | |
8362 | static int | |
e3bb37b5 | 8363 | intel_e11 (void) |
64a0c779 | 8364 | { |
a724f0f4 | 8365 | switch (cur_token.code) |
64a0c779 | 8366 | { |
a724f0f4 JB |
8367 | /* e11 ( expr ) */ |
8368 | case '(': | |
64a0c779 DN |
8369 | intel_match_token ('('); |
8370 | strcat (intel_parser.disp, "("); | |
8371 | ||
8372 | if (intel_expr () && intel_match_token (')')) | |
e5cb08ac KH |
8373 | { |
8374 | strcat (intel_parser.disp, ")"); | |
8375 | return 1; | |
8376 | } | |
a724f0f4 | 8377 | return 0; |
4a1805b1 | 8378 | |
a724f0f4 JB |
8379 | /* e11 [ expr ] */ |
8380 | case '[': | |
a724f0f4 | 8381 | return intel_bracket_expr (); |
64a0c779 | 8382 | |
a724f0f4 JB |
8383 | /* e11 $ |
8384 | | . */ | |
8385 | case '.': | |
64a0c779 DN |
8386 | strcat (intel_parser.disp, cur_token.str); |
8387 | intel_match_token (cur_token.code); | |
21d6c4af DN |
8388 | |
8389 | /* Mark as a memory operand only if it's not already known to be an | |
8390 | offset expression. */ | |
a724f0f4 | 8391 | if (!intel_parser.in_offset) |
21d6c4af | 8392 | intel_parser.is_mem = 1; |
64a0c779 DN |
8393 | |
8394 | return 1; | |
64a0c779 | 8395 | |
a724f0f4 JB |
8396 | /* e11 register */ |
8397 | case T_REG: | |
8398 | { | |
8399 | const reg_entry *reg = intel_parser.reg = cur_token.reg; | |
64a0c779 | 8400 | |
a724f0f4 | 8401 | intel_match_token (T_REG); |
64a0c779 | 8402 | |
a724f0f4 JB |
8403 | /* Check for segment change. */ |
8404 | if (cur_token.code == ':') | |
8405 | { | |
40fb9820 L |
8406 | if (!reg->reg_type.bitfield.sreg2 |
8407 | && !reg->reg_type.bitfield.sreg3) | |
a724f0f4 | 8408 | { |
4eed87de AM |
8409 | as_bad (_("`%s' is not a valid segment register"), |
8410 | reg->reg_name); | |
a724f0f4 JB |
8411 | return 0; |
8412 | } | |
8413 | else if (i.seg[i.mem_operands]) | |
8414 | as_warn (_("Extra segment override ignored")); | |
8415 | else | |
8416 | { | |
8417 | if (!intel_parser.in_offset) | |
8418 | intel_parser.is_mem = 1; | |
8419 | switch (reg->reg_num) | |
8420 | { | |
8421 | case 0: | |
8422 | i.seg[i.mem_operands] = &es; | |
8423 | break; | |
8424 | case 1: | |
8425 | i.seg[i.mem_operands] = &cs; | |
8426 | break; | |
8427 | case 2: | |
8428 | i.seg[i.mem_operands] = &ss; | |
8429 | break; | |
8430 | case 3: | |
8431 | i.seg[i.mem_operands] = &ds; | |
8432 | break; | |
8433 | case 4: | |
8434 | i.seg[i.mem_operands] = &fs; | |
8435 | break; | |
8436 | case 5: | |
8437 | i.seg[i.mem_operands] = &gs; | |
8438 | break; | |
8439 | } | |
8440 | } | |
8441 | } | |
64a0c779 | 8442 | |
a724f0f4 JB |
8443 | /* Not a segment register. Check for register scaling. */ |
8444 | else if (cur_token.code == '*') | |
8445 | { | |
8446 | if (!intel_parser.in_bracket) | |
8447 | { | |
8448 | as_bad (_("Register scaling only allowed in memory operands")); | |
8449 | return 0; | |
8450 | } | |
64a0c779 | 8451 | |
40fb9820 | 8452 | if (reg->reg_type.bitfield.reg16) /* Disallow things like [si*1]. */ |
a724f0f4 JB |
8453 | reg = i386_regtab + REGNAM_AX + 4; /* sp is invalid as index */ |
8454 | else if (i.index_reg) | |
8455 | reg = i386_regtab + REGNAM_EAX + 4; /* esp is invalid as index */ | |
64a0c779 | 8456 | |
a724f0f4 JB |
8457 | /* What follows must be a valid scale. */ |
8458 | intel_match_token ('*'); | |
8459 | i.index_reg = reg; | |
40fb9820 | 8460 | i.types[this_operand].bitfield.baseindex = 1; |
64a0c779 | 8461 | |
a724f0f4 JB |
8462 | /* Set the scale after setting the register (otherwise, |
8463 | i386_scale will complain) */ | |
8464 | if (cur_token.code == '+' || cur_token.code == '-') | |
8465 | { | |
8466 | char *str, sign = cur_token.code; | |
8467 | intel_match_token (cur_token.code); | |
8468 | if (cur_token.code != T_CONST) | |
8469 | { | |
8470 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
8471 | cur_token.str); | |
8472 | return 0; | |
8473 | } | |
8474 | str = (char *) xmalloc (strlen (cur_token.str) + 2); | |
8475 | strcpy (str + 1, cur_token.str); | |
8476 | *str = sign; | |
8477 | if (!i386_scale (str)) | |
8478 | return 0; | |
8479 | free (str); | |
8480 | } | |
8481 | else if (!i386_scale (cur_token.str)) | |
64a0c779 | 8482 | return 0; |
a724f0f4 JB |
8483 | intel_match_token (cur_token.code); |
8484 | } | |
64a0c779 | 8485 | |
a724f0f4 JB |
8486 | /* No scaling. If this is a memory operand, the register is either a |
8487 | base register (first occurrence) or an index register (second | |
8488 | occurrence). */ | |
7b0441f6 | 8489 | else if (intel_parser.in_bracket) |
a724f0f4 | 8490 | { |
64a0c779 | 8491 | |
a724f0f4 JB |
8492 | if (!i.base_reg) |
8493 | i.base_reg = reg; | |
8494 | else if (!i.index_reg) | |
8495 | i.index_reg = reg; | |
8496 | else | |
8497 | { | |
8498 | as_bad (_("Too many register references in memory operand")); | |
8499 | return 0; | |
8500 | } | |
64a0c779 | 8501 | |
40fb9820 | 8502 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 | 8503 | } |
4a1805b1 | 8504 | |
4d1bb795 JB |
8505 | /* It's neither base nor index. */ |
8506 | else if (!intel_parser.in_offset && !intel_parser.is_mem) | |
a724f0f4 | 8507 | { |
40fb9820 L |
8508 | i386_operand_type temp = reg->reg_type; |
8509 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
8510 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
8511 | temp); | |
a724f0f4 JB |
8512 | i.op[this_operand].regs = reg; |
8513 | i.reg_operands++; | |
8514 | } | |
8515 | else | |
8516 | { | |
8517 | as_bad (_("Invalid use of register")); | |
8518 | return 0; | |
8519 | } | |
64a0c779 | 8520 | |
a724f0f4 JB |
8521 | /* Since registers are not part of the displacement string (except |
8522 | when we're parsing offset operands), we may need to remove any | |
8523 | preceding '+' from the displacement string. */ | |
8524 | if (*intel_parser.disp != '\0' | |
8525 | && !intel_parser.in_offset) | |
8526 | { | |
8527 | char *s = intel_parser.disp; | |
8528 | s += strlen (s) - 1; | |
8529 | if (*s == '+') | |
8530 | *s = '\0'; | |
8531 | } | |
4a1805b1 | 8532 | |
a724f0f4 JB |
8533 | return 1; |
8534 | } | |
8535 | ||
8536 | /* e11 BYTE | |
8537 | | WORD | |
8538 | | DWORD | |
8539 | | FWORD | |
8540 | | QWORD | |
8541 | | TBYTE | |
8542 | | OWORD | |
8543 | | XMMWORD */ | |
8544 | case T_BYTE: | |
8545 | case T_WORD: | |
8546 | case T_DWORD: | |
8547 | case T_FWORD: | |
8548 | case T_QWORD: | |
8549 | case T_TBYTE: | |
8550 | case T_XMMWORD: | |
8551 | intel_match_token (cur_token.code); | |
64a0c779 | 8552 | |
a724f0f4 JB |
8553 | if (cur_token.code == T_PTR) |
8554 | return 1; | |
8555 | ||
8556 | /* It must have been an identifier. */ | |
8557 | intel_putback_token (); | |
8558 | cur_token.code = T_ID; | |
8559 | /* FALLTHRU */ | |
8560 | ||
8561 | /* e11 id | |
8562 | | constant */ | |
8563 | case T_ID: | |
8564 | if (!intel_parser.in_offset && intel_parser.is_mem <= 0) | |
9306ca4a JB |
8565 | { |
8566 | symbolS *symbolP; | |
8567 | ||
a724f0f4 JB |
8568 | /* The identifier represents a memory reference only if it's not |
8569 | preceded by an offset modifier and if it's not an equate. */ | |
9306ca4a JB |
8570 | symbolP = symbol_find(cur_token.str); |
8571 | if (!symbolP || S_GET_SEGMENT(symbolP) != absolute_section) | |
8572 | intel_parser.is_mem = 1; | |
8573 | } | |
a724f0f4 | 8574 | /* FALLTHRU */ |
64a0c779 | 8575 | |
a724f0f4 JB |
8576 | case T_CONST: |
8577 | case '-': | |
8578 | case '+': | |
8579 | { | |
8580 | char *save_str, sign = 0; | |
64a0c779 | 8581 | |
a724f0f4 JB |
8582 | /* Allow constants that start with `+' or `-'. */ |
8583 | if (cur_token.code == '-' || cur_token.code == '+') | |
8584 | { | |
8585 | sign = cur_token.code; | |
8586 | intel_match_token (cur_token.code); | |
8587 | if (cur_token.code != T_CONST) | |
8588 | { | |
8589 | as_bad (_("Syntax error: Expecting a constant, got `%s'"), | |
8590 | cur_token.str); | |
8591 | return 0; | |
8592 | } | |
8593 | } | |
64a0c779 | 8594 | |
a724f0f4 JB |
8595 | save_str = (char *) xmalloc (strlen (cur_token.str) + 2); |
8596 | strcpy (save_str + !!sign, cur_token.str); | |
8597 | if (sign) | |
8598 | *save_str = sign; | |
64a0c779 | 8599 | |
a724f0f4 JB |
8600 | /* Get the next token to check for register scaling. */ |
8601 | intel_match_token (cur_token.code); | |
64a0c779 | 8602 | |
4eed87de AM |
8603 | /* Check if this constant is a scaling factor for an |
8604 | index register. */ | |
a724f0f4 JB |
8605 | if (cur_token.code == '*') |
8606 | { | |
8607 | if (intel_match_token ('*') && cur_token.code == T_REG) | |
8608 | { | |
8609 | const reg_entry *reg = cur_token.reg; | |
8610 | ||
8611 | if (!intel_parser.in_bracket) | |
8612 | { | |
4eed87de AM |
8613 | as_bad (_("Register scaling only allowed " |
8614 | "in memory operands")); | |
a724f0f4 JB |
8615 | return 0; |
8616 | } | |
8617 | ||
4eed87de AM |
8618 | /* Disallow things like [1*si]. |
8619 | sp and esp are invalid as index. */ | |
40fb9820 | 8620 | if (reg->reg_type.bitfield.reg16) |
4eed87de | 8621 | reg = i386_regtab + REGNAM_AX + 4; |
a724f0f4 | 8622 | else if (i.index_reg) |
4eed87de | 8623 | reg = i386_regtab + REGNAM_EAX + 4; |
a724f0f4 JB |
8624 | |
8625 | /* The constant is followed by `* reg', so it must be | |
8626 | a valid scale. */ | |
8627 | i.index_reg = reg; | |
40fb9820 | 8628 | i.types[this_operand].bitfield.baseindex = 1; |
a724f0f4 JB |
8629 | |
8630 | /* Set the scale after setting the register (otherwise, | |
8631 | i386_scale will complain) */ | |
8632 | if (!i386_scale (save_str)) | |
64a0c779 | 8633 | return 0; |
a724f0f4 JB |
8634 | intel_match_token (T_REG); |
8635 | ||
8636 | /* Since registers are not part of the displacement | |
8637 | string, we may need to remove any preceding '+' from | |
8638 | the displacement string. */ | |
8639 | if (*intel_parser.disp != '\0') | |
8640 | { | |
8641 | char *s = intel_parser.disp; | |
8642 | s += strlen (s) - 1; | |
8643 | if (*s == '+') | |
8644 | *s = '\0'; | |
8645 | } | |
8646 | ||
8647 | free (save_str); | |
8648 | ||
8649 | return 1; | |
8650 | } | |
64a0c779 | 8651 | |
a724f0f4 JB |
8652 | /* The constant was not used for register scaling. Since we have |
8653 | already consumed the token following `*' we now need to put it | |
8654 | back in the stream. */ | |
64a0c779 | 8655 | intel_putback_token (); |
a724f0f4 | 8656 | } |
64a0c779 | 8657 | |
a724f0f4 JB |
8658 | /* Add the constant to the displacement string. */ |
8659 | strcat (intel_parser.disp, save_str); | |
8660 | free (save_str); | |
64a0c779 | 8661 | |
a724f0f4 JB |
8662 | return 1; |
8663 | } | |
64a0c779 DN |
8664 | } |
8665 | ||
64a0c779 DN |
8666 | as_bad (_("Unrecognized token '%s'"), cur_token.str); |
8667 | return 0; | |
8668 | } | |
8669 | ||
64a0c779 DN |
8670 | /* Match the given token against cur_token. If they match, read the next |
8671 | token from the operand string. */ | |
8672 | static int | |
e3bb37b5 | 8673 | intel_match_token (int code) |
64a0c779 DN |
8674 | { |
8675 | if (cur_token.code == code) | |
8676 | { | |
8677 | intel_get_token (); | |
8678 | return 1; | |
8679 | } | |
8680 | else | |
8681 | { | |
0477af35 | 8682 | as_bad (_("Unexpected token `%s'"), cur_token.str); |
64a0c779 DN |
8683 | return 0; |
8684 | } | |
8685 | } | |
8686 | ||
64a0c779 DN |
8687 | /* Read a new token from intel_parser.op_string and store it in cur_token. */ |
8688 | static void | |
e3bb37b5 | 8689 | intel_get_token (void) |
64a0c779 DN |
8690 | { |
8691 | char *end_op; | |
8692 | const reg_entry *reg; | |
8693 | struct intel_token new_token; | |
8694 | ||
8695 | new_token.code = T_NIL; | |
8696 | new_token.reg = NULL; | |
8697 | new_token.str = NULL; | |
8698 | ||
4a1805b1 | 8699 | /* Free the memory allocated to the previous token and move |
64a0c779 DN |
8700 | cur_token to prev_token. */ |
8701 | if (prev_token.str) | |
8702 | free (prev_token.str); | |
8703 | ||
8704 | prev_token = cur_token; | |
8705 | ||
8706 | /* Skip whitespace. */ | |
8707 | while (is_space_char (*intel_parser.op_string)) | |
8708 | intel_parser.op_string++; | |
8709 | ||
8710 | /* Return an empty token if we find nothing else on the line. */ | |
8711 | if (*intel_parser.op_string == '\0') | |
8712 | { | |
8713 | cur_token = new_token; | |
8714 | return; | |
8715 | } | |
8716 | ||
8717 | /* The new token cannot be larger than the remainder of the operand | |
8718 | string. */ | |
a724f0f4 | 8719 | new_token.str = (char *) xmalloc (strlen (intel_parser.op_string) + 1); |
64a0c779 DN |
8720 | new_token.str[0] = '\0'; |
8721 | ||
8722 | if (strchr ("0123456789", *intel_parser.op_string)) | |
8723 | { | |
8724 | char *p = new_token.str; | |
8725 | char *q = intel_parser.op_string; | |
8726 | new_token.code = T_CONST; | |
8727 | ||
8728 | /* Allow any kind of identifier char to encompass floating point and | |
8729 | hexadecimal numbers. */ | |
8730 | while (is_identifier_char (*q)) | |
8731 | *p++ = *q++; | |
8732 | *p = '\0'; | |
8733 | ||
8734 | /* Recognize special symbol names [0-9][bf]. */ | |
8735 | if (strlen (intel_parser.op_string) == 2 | |
4a1805b1 | 8736 | && (intel_parser.op_string[1] == 'b' |
64a0c779 DN |
8737 | || intel_parser.op_string[1] == 'f')) |
8738 | new_token.code = T_ID; | |
8739 | } | |
8740 | ||
4d1bb795 | 8741 | else if ((reg = parse_register (intel_parser.op_string, &end_op)) != NULL) |
64a0c779 | 8742 | { |
4d1bb795 JB |
8743 | size_t len = end_op - intel_parser.op_string; |
8744 | ||
64a0c779 DN |
8745 | new_token.code = T_REG; |
8746 | new_token.reg = reg; | |
8747 | ||
4d1bb795 JB |
8748 | memcpy (new_token.str, intel_parser.op_string, len); |
8749 | new_token.str[len] = '\0'; | |
64a0c779 DN |
8750 | } |
8751 | ||
8752 | else if (is_identifier_char (*intel_parser.op_string)) | |
8753 | { | |
8754 | char *p = new_token.str; | |
8755 | char *q = intel_parser.op_string; | |
8756 | ||
8757 | /* A '.' or '$' followed by an identifier char is an identifier. | |
8758 | Otherwise, it's operator '.' followed by an expression. */ | |
8759 | if ((*q == '.' || *q == '$') && !is_identifier_char (*(q + 1))) | |
8760 | { | |
9306ca4a JB |
8761 | new_token.code = '.'; |
8762 | new_token.str[0] = '.'; | |
64a0c779 DN |
8763 | new_token.str[1] = '\0'; |
8764 | } | |
8765 | else | |
8766 | { | |
8767 | while (is_identifier_char (*q) || *q == '@') | |
8768 | *p++ = *q++; | |
8769 | *p = '\0'; | |
8770 | ||
9306ca4a JB |
8771 | if (strcasecmp (new_token.str, "NOT") == 0) |
8772 | new_token.code = '~'; | |
8773 | ||
8774 | else if (strcasecmp (new_token.str, "MOD") == 0) | |
8775 | new_token.code = '%'; | |
8776 | ||
8777 | else if (strcasecmp (new_token.str, "AND") == 0) | |
8778 | new_token.code = '&'; | |
8779 | ||
8780 | else if (strcasecmp (new_token.str, "OR") == 0) | |
8781 | new_token.code = '|'; | |
8782 | ||
8783 | else if (strcasecmp (new_token.str, "XOR") == 0) | |
8784 | new_token.code = '^'; | |
8785 | ||
8786 | else if (strcasecmp (new_token.str, "SHL") == 0) | |
8787 | new_token.code = T_SHL; | |
8788 | ||
8789 | else if (strcasecmp (new_token.str, "SHR") == 0) | |
8790 | new_token.code = T_SHR; | |
8791 | ||
8792 | else if (strcasecmp (new_token.str, "BYTE") == 0) | |
64a0c779 DN |
8793 | new_token.code = T_BYTE; |
8794 | ||
8795 | else if (strcasecmp (new_token.str, "WORD") == 0) | |
8796 | new_token.code = T_WORD; | |
8797 | ||
8798 | else if (strcasecmp (new_token.str, "DWORD") == 0) | |
8799 | new_token.code = T_DWORD; | |
8800 | ||
9306ca4a JB |
8801 | else if (strcasecmp (new_token.str, "FWORD") == 0) |
8802 | new_token.code = T_FWORD; | |
8803 | ||
64a0c779 DN |
8804 | else if (strcasecmp (new_token.str, "QWORD") == 0) |
8805 | new_token.code = T_QWORD; | |
8806 | ||
9306ca4a JB |
8807 | else if (strcasecmp (new_token.str, "TBYTE") == 0 |
8808 | /* XXX remove (gcc still uses it) */ | |
8809 | || strcasecmp (new_token.str, "XWORD") == 0) | |
8810 | new_token.code = T_TBYTE; | |
8811 | ||
8812 | else if (strcasecmp (new_token.str, "XMMWORD") == 0 | |
8813 | || strcasecmp (new_token.str, "OWORD") == 0) | |
8814 | new_token.code = T_XMMWORD; | |
64a0c779 DN |
8815 | |
8816 | else if (strcasecmp (new_token.str, "PTR") == 0) | |
8817 | new_token.code = T_PTR; | |
8818 | ||
8819 | else if (strcasecmp (new_token.str, "SHORT") == 0) | |
8820 | new_token.code = T_SHORT; | |
8821 | ||
8822 | else if (strcasecmp (new_token.str, "OFFSET") == 0) | |
8823 | { | |
8824 | new_token.code = T_OFFSET; | |
8825 | ||
8826 | /* ??? This is not mentioned in the MASM grammar but gcc | |
8827 | makes use of it with -mintel-syntax. OFFSET may be | |
8828 | followed by FLAT: */ | |
8829 | if (strncasecmp (q, " FLAT:", 6) == 0) | |
8830 | strcat (new_token.str, " FLAT:"); | |
8831 | } | |
8832 | ||
8833 | /* ??? This is not mentioned in the MASM grammar. */ | |
8834 | else if (strcasecmp (new_token.str, "FLAT") == 0) | |
a724f0f4 JB |
8835 | { |
8836 | new_token.code = T_OFFSET; | |
8837 | if (*q == ':') | |
8838 | strcat (new_token.str, ":"); | |
8839 | else | |
8840 | as_bad (_("`:' expected")); | |
8841 | } | |
64a0c779 DN |
8842 | |
8843 | else | |
8844 | new_token.code = T_ID; | |
8845 | } | |
8846 | } | |
8847 | ||
9306ca4a JB |
8848 | else if (strchr ("+-/*%|&^:[]()~", *intel_parser.op_string)) |
8849 | { | |
8850 | new_token.code = *intel_parser.op_string; | |
8851 | new_token.str[0] = *intel_parser.op_string; | |
8852 | new_token.str[1] = '\0'; | |
8853 | } | |
8854 | ||
8855 | else if (strchr ("<>", *intel_parser.op_string) | |
8856 | && *intel_parser.op_string == *(intel_parser.op_string + 1)) | |
8857 | { | |
8858 | new_token.code = *intel_parser.op_string == '<' ? T_SHL : T_SHR; | |
8859 | new_token.str[0] = *intel_parser.op_string; | |
8860 | new_token.str[1] = *intel_parser.op_string; | |
8861 | new_token.str[2] = '\0'; | |
8862 | } | |
8863 | ||
64a0c779 | 8864 | else |
0477af35 | 8865 | as_bad (_("Unrecognized token `%s'"), intel_parser.op_string); |
64a0c779 DN |
8866 | |
8867 | intel_parser.op_string += strlen (new_token.str); | |
8868 | cur_token = new_token; | |
8869 | } | |
8870 | ||
64a0c779 DN |
8871 | /* Put cur_token back into the token stream and make cur_token point to |
8872 | prev_token. */ | |
8873 | static void | |
e3bb37b5 | 8874 | intel_putback_token (void) |
64a0c779 | 8875 | { |
a724f0f4 JB |
8876 | if (cur_token.code != T_NIL) |
8877 | { | |
8878 | intel_parser.op_string -= strlen (cur_token.str); | |
8879 | free (cur_token.str); | |
8880 | } | |
64a0c779 | 8881 | cur_token = prev_token; |
4a1805b1 | 8882 | |
64a0c779 DN |
8883 | /* Forget prev_token. */ |
8884 | prev_token.code = T_NIL; | |
8885 | prev_token.reg = NULL; | |
8886 | prev_token.str = NULL; | |
8887 | } | |
54cfded0 | 8888 | |
a4447b93 | 8889 | int |
1df69f4f | 8890 | tc_x86_regname_to_dw2regnum (char *regname) |
54cfded0 AM |
8891 | { |
8892 | unsigned int regnum; | |
8893 | unsigned int regnames_count; | |
089dfecd | 8894 | static const char *const regnames_32[] = |
54cfded0 | 8895 | { |
a4447b93 RH |
8896 | "eax", "ecx", "edx", "ebx", |
8897 | "esp", "ebp", "esi", "edi", | |
089dfecd JB |
8898 | "eip", "eflags", NULL, |
8899 | "st0", "st1", "st2", "st3", | |
8900 | "st4", "st5", "st6", "st7", | |
8901 | NULL, NULL, | |
8902 | "xmm0", "xmm1", "xmm2", "xmm3", | |
8903 | "xmm4", "xmm5", "xmm6", "xmm7", | |
8904 | "mm0", "mm1", "mm2", "mm3", | |
43fd16e4 JB |
8905 | "mm4", "mm5", "mm6", "mm7", |
8906 | "fcw", "fsw", "mxcsr", | |
8907 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
8908 | "tr", "ldtr" | |
54cfded0 | 8909 | }; |
089dfecd | 8910 | static const char *const regnames_64[] = |
54cfded0 | 8911 | { |
089dfecd JB |
8912 | "rax", "rdx", "rcx", "rbx", |
8913 | "rsi", "rdi", "rbp", "rsp", | |
8914 | "r8", "r9", "r10", "r11", | |
54cfded0 | 8915 | "r12", "r13", "r14", "r15", |
089dfecd JB |
8916 | "rip", |
8917 | "xmm0", "xmm1", "xmm2", "xmm3", | |
8918 | "xmm4", "xmm5", "xmm6", "xmm7", | |
8919 | "xmm8", "xmm9", "xmm10", "xmm11", | |
8920 | "xmm12", "xmm13", "xmm14", "xmm15", | |
8921 | "st0", "st1", "st2", "st3", | |
8922 | "st4", "st5", "st6", "st7", | |
8923 | "mm0", "mm1", "mm2", "mm3", | |
43fd16e4 JB |
8924 | "mm4", "mm5", "mm6", "mm7", |
8925 | "rflags", | |
8926 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
8927 | "fs.base", "gs.base", NULL, NULL, | |
8928 | "tr", "ldtr", | |
8929 | "mxcsr", "fcw", "fsw" | |
54cfded0 | 8930 | }; |
089dfecd | 8931 | const char *const *regnames; |
54cfded0 AM |
8932 | |
8933 | if (flag_code == CODE_64BIT) | |
8934 | { | |
8935 | regnames = regnames_64; | |
0cea6190 | 8936 | regnames_count = ARRAY_SIZE (regnames_64); |
54cfded0 AM |
8937 | } |
8938 | else | |
8939 | { | |
8940 | regnames = regnames_32; | |
0cea6190 | 8941 | regnames_count = ARRAY_SIZE (regnames_32); |
54cfded0 AM |
8942 | } |
8943 | ||
8944 | for (regnum = 0; regnum < regnames_count; regnum++) | |
089dfecd JB |
8945 | if (regnames[regnum] != NULL |
8946 | && strcmp (regname, regnames[regnum]) == 0) | |
54cfded0 AM |
8947 | return regnum; |
8948 | ||
54cfded0 AM |
8949 | return -1; |
8950 | } | |
8951 | ||
8952 | void | |
8953 | tc_x86_frame_initial_instructions (void) | |
8954 | { | |
a4447b93 RH |
8955 | static unsigned int sp_regno; |
8956 | ||
8957 | if (!sp_regno) | |
8958 | sp_regno = tc_x86_regname_to_dw2regnum (flag_code == CODE_64BIT | |
8959 | ? "rsp" : "esp"); | |
8960 | ||
8961 | cfi_add_CFA_def_cfa (sp_regno, -x86_cie_data_alignment); | |
8962 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); | |
54cfded0 | 8963 | } |
d2b2c203 DJ |
8964 | |
8965 | int | |
8966 | i386_elf_section_type (const char *str, size_t len) | |
8967 | { | |
8968 | if (flag_code == CODE_64BIT | |
8969 | && len == sizeof ("unwind") - 1 | |
8970 | && strncmp (str, "unwind", 6) == 0) | |
8971 | return SHT_X86_64_UNWIND; | |
8972 | ||
8973 | return -1; | |
8974 | } | |
bb41ade5 AM |
8975 | |
8976 | #ifdef TE_PE | |
8977 | void | |
8978 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
8979 | { | |
8980 | expressionS expr; | |
8981 | ||
8982 | expr.X_op = O_secrel; | |
8983 | expr.X_add_symbol = symbol; | |
8984 | expr.X_add_number = 0; | |
8985 | emit_expr (&expr, size); | |
8986 | } | |
8987 | #endif | |
3b22753a L |
8988 | |
8989 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
8990 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
8991 | ||
8992 | int | |
8993 | x86_64_section_letter (int letter, char **ptr_msg) | |
8994 | { | |
8995 | if (flag_code == CODE_64BIT) | |
8996 | { | |
8997 | if (letter == 'l') | |
8998 | return SHF_X86_64_LARGE; | |
8999 | ||
9000 | *ptr_msg = _("Bad .section directive: want a,l,w,x,M,S,G,T in string"); | |
64e74474 | 9001 | } |
3b22753a | 9002 | else |
64e74474 | 9003 | *ptr_msg = _("Bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
9004 | return -1; |
9005 | } | |
9006 | ||
9007 | int | |
9008 | x86_64_section_word (char *str, size_t len) | |
9009 | { | |
8620418b | 9010 | if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large")) |
3b22753a L |
9011 | return SHF_X86_64_LARGE; |
9012 | ||
9013 | return -1; | |
9014 | } | |
9015 | ||
9016 | static void | |
9017 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
9018 | { | |
9019 | if (flag_code != CODE_64BIT) | |
9020 | { | |
9021 | s_comm_internal (0, elf_common_parse); | |
9022 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
9023 | } | |
9024 | else | |
9025 | { | |
9026 | static segT lbss_section; | |
9027 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
9028 | asection *saved_bss_section = bss_section; | |
9029 | ||
9030 | if (lbss_section == NULL) | |
9031 | { | |
9032 | flagword applicable; | |
9033 | segT seg = now_seg; | |
9034 | subsegT subseg = now_subseg; | |
9035 | ||
9036 | /* The .lbss section is for local .largecomm symbols. */ | |
9037 | lbss_section = subseg_new (".lbss", 0); | |
9038 | applicable = bfd_applicable_section_flags (stdoutput); | |
9039 | bfd_set_section_flags (stdoutput, lbss_section, | |
9040 | applicable & SEC_ALLOC); | |
9041 | seg_info (lbss_section)->bss = 1; | |
9042 | ||
9043 | subseg_set (seg, subseg); | |
9044 | } | |
9045 | ||
9046 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
9047 | bss_section = lbss_section; | |
9048 | ||
9049 | s_comm_internal (0, elf_common_parse); | |
9050 | ||
9051 | elf_com_section_ptr = saved_com_section_ptr; | |
9052 | bss_section = saved_bss_section; | |
9053 | } | |
9054 | } | |
9055 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |