1 /* tc-i386.c -- Assemble code for the Intel 80386
2 Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
5 Free Software Foundation, Inc.
7 This file is part of GAS, the GNU Assembler.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 /* Intel 80386 machine specific gas.
25 Written by Eliot Dresselhaus (eliot@mgm.mit.edu).
26 x86_64 support by Jan Hubicka (jh@suse.cz)
27 VIA PadLock support by Michal Ludvig (mludvig@suse.cz)
28 Bugs & suggestions are completely welcome. This is free software.
29 Please help us make it better. */
32 #include "safe-ctype.h"
34 #include "dwarf2dbg.h"
35 #include "dw2gencfi.h"
36 #include "elf/x86-64.h"
37 #include "opcodes/i386-init.h"
39 #ifndef REGISTER_WARNINGS
40 #define REGISTER_WARNINGS 1
43 #ifndef INFER_ADDR_PREFIX
44 #define INFER_ADDR_PREFIX 1
48 #define DEFAULT_ARCH "i386"
53 #define INLINE __inline__
59 /* Prefixes will be emitted in the order defined below.
60 WAIT_PREFIX must be the first prefix since FWAIT is really is an
61 instruction, and so must come before any prefixes.
62 The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX,
63 REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */
69 #define HLE_PREFIX REP_PREFIX
70 #define BND_PREFIX REP_PREFIX
72 #define REX_PREFIX 6 /* must come last. */
73 #define MAX_PREFIXES 7 /* max prefixes per opcode */
75 /* we define the syntax here (modulo base,index,scale syntax) */
76 #define REGISTER_PREFIX '%'
77 #define IMMEDIATE_PREFIX '$'
78 #define ABSOLUTE_PREFIX '*'
80 /* these are the instruction mnemonic suffixes in AT&T syntax or
81 memory operand size in Intel syntax. */
82 #define WORD_MNEM_SUFFIX 'w'
83 #define BYTE_MNEM_SUFFIX 'b'
84 #define SHORT_MNEM_SUFFIX 's'
85 #define LONG_MNEM_SUFFIX 'l'
86 #define QWORD_MNEM_SUFFIX 'q'
87 #define XMMWORD_MNEM_SUFFIX 'x'
88 #define YMMWORD_MNEM_SUFFIX 'y'
89 #define ZMMWORD_MNEM_SUFFIX 'z'
90 /* Intel Syntax. Use a non-ascii letter since since it never appears
92 #define LONG_DOUBLE_MNEM_SUFFIX '\1'
94 #define END_OF_INSN '\0'
97 'templates' is for grouping together 'template' structures for opcodes
98 of the same name. This is only used for storing the insns in the grand
99 ole hash table of insns.
100 The templates themselves start at START and range up to (but not including)
105 const insn_template
*start
;
106 const insn_template
*end
;
110 /* 386 operand encoding bytes: see 386 book for details of this. */
113 unsigned int regmem
; /* codes register or memory operand */
114 unsigned int reg
; /* codes register operand (or extended opcode) */
115 unsigned int mode
; /* how to interpret regmem & reg */
119 /* x86-64 extension prefix. */
120 typedef int rex_byte
;
122 /* 386 opcode byte to code indirect addressing. */
131 /* x86 arch names, types and features */
134 const char *name
; /* arch name */
135 unsigned int len
; /* arch string length */
136 enum processor_type type
; /* arch type */
137 i386_cpu_flags flags
; /* cpu feature flags */
138 unsigned int skip
; /* show_arch should skip this. */
139 unsigned int negated
; /* turn off indicated flags. */
143 static void update_code_flag (int, int);
144 static void set_code_flag (int);
145 static void set_16bit_gcc_code_flag (int);
146 static void set_intel_syntax (int);
147 static void set_intel_mnemonic (int);
148 static void set_allow_index_reg (int);
149 static void set_check (int);
150 static void set_cpu_arch (int);
152 static void pe_directive_secrel (int);
154 static void signed_cons (int);
155 static char *output_invalid (int c
);
156 static int i386_finalize_immediate (segT
, expressionS
*, i386_operand_type
,
158 static int i386_finalize_displacement (segT
, expressionS
*, i386_operand_type
,
160 static int i386_att_operand (char *);
161 static int i386_intel_operand (char *, int);
162 static int i386_intel_simplify (expressionS
*);
163 static int i386_intel_parse_name (const char *, expressionS
*);
164 static const reg_entry
*parse_register (char *, char **);
165 static char *parse_insn (char *, char *);
166 static char *parse_operands (char *, const char *);
167 static void swap_operands (void);
168 static void swap_2_operands (int, int);
169 static void optimize_imm (void);
170 static void optimize_disp (void);
171 static const insn_template
*match_template (void);
172 static int check_string (void);
173 static int process_suffix (void);
174 static int check_byte_reg (void);
175 static int check_long_reg (void);
176 static int check_qword_reg (void);
177 static int check_word_reg (void);
178 static int finalize_imm (void);
179 static int process_operands (void);
180 static const seg_entry
*build_modrm_byte (void);
181 static void output_insn (void);
182 static void output_imm (fragS
*, offsetT
);
183 static void output_disp (fragS
*, offsetT
);
185 static void s_bss (int);
187 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
188 static void handle_large_common (int small ATTRIBUTE_UNUSED
);
191 static const char *default_arch
= DEFAULT_ARCH
;
193 /* This struct describes rounding control and SAE in the instruction. */
207 static struct RC_Operation rc_op
;
209 /* The struct describes masking, applied to OPERAND in the instruction.
210 MASK is a pointer to the corresponding mask register. ZEROING tells
211 whether merging or zeroing mask is used. */
212 struct Mask_Operation
214 const reg_entry
*mask
;
215 unsigned int zeroing
;
216 /* The operand where this operation is associated. */
220 static struct Mask_Operation mask_op
;
222 /* The struct describes broadcasting, applied to OPERAND. FACTOR is
224 struct Broadcast_Operation
226 /* Type of broadcast: no broadcast, {1to8}, or {1to16}. */
229 /* Index of broadcasted operand. */
233 static struct Broadcast_Operation broadcast_op
;
238 /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */
239 unsigned char bytes
[4];
241 /* Destination or source register specifier. */
242 const reg_entry
*register_specifier
;
245 /* 'md_assemble ()' gathers together information and puts it into a
252 const reg_entry
*regs
;
257 operand_size_mismatch
,
258 operand_type_mismatch
,
259 register_type_mismatch
,
260 number_of_operands_mismatch
,
261 invalid_instruction_suffix
,
264 unsupported_with_intel_mnemonic
,
267 invalid_vsib_address
,
268 invalid_vector_register_set
,
269 unsupported_vector_index_register
,
270 unsupported_broadcast
,
271 broadcast_not_on_src_operand
,
274 mask_not_on_destination
,
277 rc_sae_operand_not_last_imm
,
278 invalid_register_operand
,
284 /* TM holds the template for the insn were currently assembling. */
287 /* SUFFIX holds the instruction size suffix for byte, word, dword
288 or qword, if given. */
291 /* OPERANDS gives the number of given operands. */
292 unsigned int operands
;
294 /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number
295 of given register, displacement, memory operands and immediate
297 unsigned int reg_operands
, disp_operands
, mem_operands
, imm_operands
;
299 /* TYPES [i] is the type (see above #defines) which tells us how to
300 use OP[i] for the corresponding operand. */
301 i386_operand_type types
[MAX_OPERANDS
];
303 /* Displacement expression, immediate expression, or register for each
305 union i386_op op
[MAX_OPERANDS
];
307 /* Flags for operands. */
308 unsigned int flags
[MAX_OPERANDS
];
309 #define Operand_PCrel 1
311 /* Relocation type for operand */
312 enum bfd_reloc_code_real reloc
[MAX_OPERANDS
];
314 /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode
315 the base index byte below. */
316 const reg_entry
*base_reg
;
317 const reg_entry
*index_reg
;
318 unsigned int log2_scale_factor
;
320 /* SEG gives the seg_entries of this insn. They are zero unless
321 explicit segment overrides are given. */
322 const seg_entry
*seg
[2];
324 /* PREFIX holds all the given prefix opcodes (usually null).
325 PREFIXES is the number of prefix opcodes. */
326 unsigned int prefixes
;
327 unsigned char prefix
[MAX_PREFIXES
];
329 /* RM and SIB are the modrm byte and the sib byte where the
330 addressing modes of this insn are encoded. */
337 /* Masking attributes. */
338 struct Mask_Operation
*mask
;
340 /* Rounding control and SAE attributes. */
341 struct RC_Operation
*rounding
;
343 /* Broadcasting attributes. */
344 struct Broadcast_Operation
*broadcast
;
346 /* Compressed disp8*N attribute. */
347 unsigned int memshift
;
349 /* Swap operand in encoding. */
350 unsigned int swap_operand
;
352 /* Prefer 8bit or 32bit displacement in encoding. */
355 disp_encoding_default
= 0,
361 const char *rep_prefix
;
364 const char *hle_prefix
;
366 /* Have BND prefix. */
367 const char *bnd_prefix
;
369 /* Need VREX to support upper 16 registers. */
373 enum i386_error error
;
376 typedef struct _i386_insn i386_insn
;
378 /* Link RC type with corresponding string, that'll be looked for in
387 static const struct RC_name RC_NamesTable
[] =
389 { rne
, STRING_COMMA_LEN ("rn-sae") },
390 { rd
, STRING_COMMA_LEN ("rd-sae") },
391 { ru
, STRING_COMMA_LEN ("ru-sae") },
392 { rz
, STRING_COMMA_LEN ("rz-sae") },
393 { saeonly
, STRING_COMMA_LEN ("sae") },
396 /* List of chars besides those in app.c:symbol_chars that can start an
397 operand. Used to prevent the scrubber eating vital white-space. */
398 const char extra_symbol_chars
[] = "*%-([{"
407 #if (defined (TE_I386AIX) \
408 || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \
409 && !defined (TE_GNU) \
410 && !defined (TE_LINUX) \
411 && !defined (TE_NACL) \
412 && !defined (TE_NETWARE) \
413 && !defined (TE_FreeBSD) \
414 && !defined (TE_DragonFly) \
415 && !defined (TE_NetBSD)))
416 /* This array holds the chars that always start a comment. If the
417 pre-processor is disabled, these aren't very useful. The option
418 --divide will remove '/' from this list. */
419 const char *i386_comment_chars
= "#/";
420 #define SVR4_COMMENT_CHARS 1
421 #define PREFIX_SEPARATOR '\\'
424 const char *i386_comment_chars
= "#";
425 #define PREFIX_SEPARATOR '/'
428 /* This array holds the chars that only start a comment at the beginning of
429 a line. If the line seems to have the form '# 123 filename'
430 .line and .file directives will appear in the pre-processed output.
431 Note that input_file.c hand checks for '#' at the beginning of the
432 first line of the input file. This is because the compiler outputs
433 #NO_APP at the beginning of its output.
434 Also note that comments started like this one will always work if
435 '/' isn't otherwise defined. */
436 const char line_comment_chars
[] = "#/";
438 const char line_separator_chars
[] = ";";
440 /* Chars that can be used to separate mant from exp in floating point
442 const char EXP_CHARS
[] = "eE";
444 /* Chars that mean this number is a floating point constant
447 const char FLT_CHARS
[] = "fFdDxX";
449 /* Tables for lexical analysis. */
450 static char mnemonic_chars
[256];
451 static char register_chars
[256];
452 static char operand_chars
[256];
453 static char identifier_chars
[256];
454 static char digit_chars
[256];
456 /* Lexical macros. */
457 #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x])
458 #define is_operand_char(x) (operand_chars[(unsigned char) x])
459 #define is_register_char(x) (register_chars[(unsigned char) x])
460 #define is_space_char(x) ((x) == ' ')
461 #define is_identifier_char(x) (identifier_chars[(unsigned char) x])
462 #define is_digit_char(x) (digit_chars[(unsigned char) x])
464 /* All non-digit non-letter characters that may occur in an operand. */
465 static char operand_special_chars
[] = "%$-+(,)*._~/<>|&^!:[@]";
467 /* md_assemble() always leaves the strings it's passed unaltered. To
468 effect this we maintain a stack of saved characters that we've smashed
469 with '\0's (indicating end of strings for various sub-fields of the
470 assembler instruction). */
471 static char save_stack
[32];
472 static char *save_stack_p
;
473 #define END_STRING_AND_SAVE(s) \
474 do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0)
475 #define RESTORE_END_STRING(s) \
476 do { *(s) = *--save_stack_p; } while (0)
478 /* The instruction we're assembling. */
481 /* Possible templates for current insn. */
482 static const templates
*current_templates
;
484 /* Per instruction expressionS buffers: max displacements & immediates. */
485 static expressionS disp_expressions
[MAX_MEMORY_OPERANDS
];
486 static expressionS im_expressions
[MAX_IMMEDIATE_OPERANDS
];
488 /* Current operand we are working on. */
489 static int this_operand
= -1;
491 /* We support four different modes. FLAG_CODE variable is used to distinguish
499 static enum flag_code flag_code
;
500 static unsigned int object_64bit
;
501 static unsigned int disallow_64bit_reloc
;
502 static int use_rela_relocations
= 0;
504 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
505 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
506 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
508 /* The ELF ABI to use. */
516 static enum x86_elf_abi x86_elf_abi
= I386_ABI
;
519 /* 1 for intel syntax,
521 static int intel_syntax
= 0;
523 /* 1 for intel mnemonic,
524 0 if att mnemonic. */
525 static int intel_mnemonic
= !SYSV386_COMPAT
;
527 /* 1 if support old (<= 2.8.1) versions of gcc. */
528 static int old_gcc
= OLDGCC_COMPAT
;
530 /* 1 if pseudo registers are permitted. */
531 static int allow_pseudo_reg
= 0;
533 /* 1 if register prefix % not required. */
534 static int allow_naked_reg
= 0;
536 /* 1 if the assembler should add BND prefix for all control-tranferring
537 instructions supporting it, even if this prefix wasn't specified
539 static int add_bnd_prefix
= 0;
541 /* 1 if pseudo index register, eiz/riz, is allowed . */
542 static int allow_index_reg
= 0;
544 static enum check_kind
550 sse_check
, operand_check
= check_warning
;
552 /* Register prefix used for error message. */
553 static const char *register_prefix
= "%";
555 /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter,
556 leave, push, and pop instructions so that gcc has the same stack
557 frame as in 32 bit mode. */
558 static char stackop_size
= '\0';
560 /* Non-zero to optimize code alignment. */
561 int optimize_align_code
= 1;
563 /* Non-zero to quieten some warnings. */
564 static int quiet_warnings
= 0;
567 static const char *cpu_arch_name
= NULL
;
568 static char *cpu_sub_arch_name
= NULL
;
570 /* CPU feature flags. */
571 static i386_cpu_flags cpu_arch_flags
= CPU_UNKNOWN_FLAGS
;
573 /* If we have selected a cpu we are generating instructions for. */
574 static int cpu_arch_tune_set
= 0;
576 /* Cpu we are generating instructions for. */
577 enum processor_type cpu_arch_tune
= PROCESSOR_UNKNOWN
;
579 /* CPU feature flags of cpu we are generating instructions for. */
580 static i386_cpu_flags cpu_arch_tune_flags
;
582 /* CPU instruction set architecture used. */
583 enum processor_type cpu_arch_isa
= PROCESSOR_UNKNOWN
;
585 /* CPU feature flags of instruction set architecture used. */
586 i386_cpu_flags cpu_arch_isa_flags
;
588 /* If set, conditional jumps are not automatically promoted to handle
589 larger than a byte offset. */
590 static unsigned int no_cond_jump_promotion
= 0;
592 /* Encode SSE instructions with VEX prefix. */
593 static unsigned int sse2avx
;
595 /* Encode scalar AVX instructions with specific vector length. */
602 /* Encode scalar EVEX LIG instructions with specific vector length. */
610 /* Encode EVEX WIG instructions with specific evex.w. */
617 /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */
618 static symbolS
*GOT_symbol
;
620 /* The dwarf2 return column, adjusted for 32 or 64 bit. */
621 unsigned int x86_dwarf2_return_column
;
623 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
624 int x86_cie_data_alignment
;
626 /* Interface to relax_segment.
627 There are 3 major relax states for 386 jump insns because the
628 different types of jumps add different sizes to frags when we're
629 figuring out what sort of jump to choose to reach a given label. */
632 #define UNCOND_JUMP 0
634 #define COND_JUMP86 2
639 #define SMALL16 (SMALL | CODE16)
641 #define BIG16 (BIG | CODE16)
645 #define INLINE __inline__
651 #define ENCODE_RELAX_STATE(type, size) \
652 ((relax_substateT) (((type) << 2) | (size)))
653 #define TYPE_FROM_RELAX_STATE(s) \
655 #define DISP_SIZE_FROM_RELAX_STATE(s) \
656 ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1)))
658 /* This table is used by relax_frag to promote short jumps to long
659 ones where necessary. SMALL (short) jumps may be promoted to BIG
660 (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We
661 don't allow a short jump in a 32 bit code segment to be promoted to
662 a 16 bit offset jump because it's slower (requires data size
663 prefix), and doesn't work, unless the destination is in the bottom
664 64k of the code segment (The top 16 bits of eip are zeroed). */
666 const relax_typeS md_relax_table
[] =
669 1) most positive reach of this state,
670 2) most negative reach of this state,
671 3) how many bytes this mode will have in the variable part of the frag
672 4) which index into the table to try if we can't fit into this one. */
674 /* UNCOND_JUMP states. */
675 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG
)},
676 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG16
)},
677 /* dword jmp adds 4 bytes to frag:
678 0 extra opcode bytes, 4 displacement bytes. */
680 /* word jmp adds 2 byte2 to frag:
681 0 extra opcode bytes, 2 displacement bytes. */
684 /* COND_JUMP states. */
685 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP
, BIG
)},
686 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP
, BIG16
)},
687 /* dword conditionals adds 5 bytes to frag:
688 1 extra opcode byte, 4 displacement bytes. */
690 /* word conditionals add 3 bytes to frag:
691 1 extra opcode byte, 2 displacement bytes. */
694 /* COND_JUMP86 states. */
695 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86
, BIG
)},
696 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86
, BIG16
)},
697 /* dword conditionals adds 5 bytes to frag:
698 1 extra opcode byte, 4 displacement bytes. */
700 /* word conditionals add 4 bytes to frag:
701 1 displacement byte and a 3 byte long branch insn. */
705 static const arch_entry cpu_arch
[] =
707 /* Do not replace the first two entries - i386_target_format()
708 relies on them being there in this order. */
709 { STRING_COMMA_LEN ("generic32"), PROCESSOR_GENERIC32
,
710 CPU_GENERIC32_FLAGS
, 0, 0 },
711 { STRING_COMMA_LEN ("generic64"), PROCESSOR_GENERIC64
,
712 CPU_GENERIC64_FLAGS
, 0, 0 },
713 { STRING_COMMA_LEN ("i8086"), PROCESSOR_UNKNOWN
,
714 CPU_NONE_FLAGS
, 0, 0 },
715 { STRING_COMMA_LEN ("i186"), PROCESSOR_UNKNOWN
,
716 CPU_I186_FLAGS
, 0, 0 },
717 { STRING_COMMA_LEN ("i286"), PROCESSOR_UNKNOWN
,
718 CPU_I286_FLAGS
, 0, 0 },
719 { STRING_COMMA_LEN ("i386"), PROCESSOR_I386
,
720 CPU_I386_FLAGS
, 0, 0 },
721 { STRING_COMMA_LEN ("i486"), PROCESSOR_I486
,
722 CPU_I486_FLAGS
, 0, 0 },
723 { STRING_COMMA_LEN ("i586"), PROCESSOR_PENTIUM
,
724 CPU_I586_FLAGS
, 0, 0 },
725 { STRING_COMMA_LEN ("i686"), PROCESSOR_PENTIUMPRO
,
726 CPU_I686_FLAGS
, 0, 0 },
727 { STRING_COMMA_LEN ("pentium"), PROCESSOR_PENTIUM
,
728 CPU_I586_FLAGS
, 0, 0 },
729 { STRING_COMMA_LEN ("pentiumpro"), PROCESSOR_PENTIUMPRO
,
730 CPU_PENTIUMPRO_FLAGS
, 0, 0 },
731 { STRING_COMMA_LEN ("pentiumii"), PROCESSOR_PENTIUMPRO
,
732 CPU_P2_FLAGS
, 0, 0 },
733 { STRING_COMMA_LEN ("pentiumiii"),PROCESSOR_PENTIUMPRO
,
734 CPU_P3_FLAGS
, 0, 0 },
735 { STRING_COMMA_LEN ("pentium4"), PROCESSOR_PENTIUM4
,
736 CPU_P4_FLAGS
, 0, 0 },
737 { STRING_COMMA_LEN ("prescott"), PROCESSOR_NOCONA
,
738 CPU_CORE_FLAGS
, 0, 0 },
739 { STRING_COMMA_LEN ("nocona"), PROCESSOR_NOCONA
,
740 CPU_NOCONA_FLAGS
, 0, 0 },
741 { STRING_COMMA_LEN ("yonah"), PROCESSOR_CORE
,
742 CPU_CORE_FLAGS
, 1, 0 },
743 { STRING_COMMA_LEN ("core"), PROCESSOR_CORE
,
744 CPU_CORE_FLAGS
, 0, 0 },
745 { STRING_COMMA_LEN ("merom"), PROCESSOR_CORE2
,
746 CPU_CORE2_FLAGS
, 1, 0 },
747 { STRING_COMMA_LEN ("core2"), PROCESSOR_CORE2
,
748 CPU_CORE2_FLAGS
, 0, 0 },
749 { STRING_COMMA_LEN ("corei7"), PROCESSOR_COREI7
,
750 CPU_COREI7_FLAGS
, 0, 0 },
751 { STRING_COMMA_LEN ("l1om"), PROCESSOR_L1OM
,
752 CPU_L1OM_FLAGS
, 0, 0 },
753 { STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM
,
754 CPU_K1OM_FLAGS
, 0, 0 },
755 { STRING_COMMA_LEN ("k6"), PROCESSOR_K6
,
756 CPU_K6_FLAGS
, 0, 0 },
757 { STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6
,
758 CPU_K6_2_FLAGS
, 0, 0 },
759 { STRING_COMMA_LEN ("athlon"), PROCESSOR_ATHLON
,
760 CPU_ATHLON_FLAGS
, 0, 0 },
761 { STRING_COMMA_LEN ("sledgehammer"), PROCESSOR_K8
,
762 CPU_K8_FLAGS
, 1, 0 },
763 { STRING_COMMA_LEN ("opteron"), PROCESSOR_K8
,
764 CPU_K8_FLAGS
, 0, 0 },
765 { STRING_COMMA_LEN ("k8"), PROCESSOR_K8
,
766 CPU_K8_FLAGS
, 0, 0 },
767 { STRING_COMMA_LEN ("amdfam10"), PROCESSOR_AMDFAM10
,
768 CPU_AMDFAM10_FLAGS
, 0, 0 },
769 { STRING_COMMA_LEN ("bdver1"), PROCESSOR_BD
,
770 CPU_BDVER1_FLAGS
, 0, 0 },
771 { STRING_COMMA_LEN ("bdver2"), PROCESSOR_BD
,
772 CPU_BDVER2_FLAGS
, 0, 0 },
773 { STRING_COMMA_LEN ("bdver3"), PROCESSOR_BD
,
774 CPU_BDVER3_FLAGS
, 0, 0 },
775 { STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD
,
776 CPU_BDVER4_FLAGS
, 0, 0 },
777 { STRING_COMMA_LEN ("btver1"), PROCESSOR_BT
,
778 CPU_BTVER1_FLAGS
, 0, 0 },
779 { STRING_COMMA_LEN ("btver2"), PROCESSOR_BT
,
780 CPU_BTVER2_FLAGS
, 0, 0 },
781 { STRING_COMMA_LEN (".8087"), PROCESSOR_UNKNOWN
,
782 CPU_8087_FLAGS
, 0, 0 },
783 { STRING_COMMA_LEN (".287"), PROCESSOR_UNKNOWN
,
784 CPU_287_FLAGS
, 0, 0 },
785 { STRING_COMMA_LEN (".387"), PROCESSOR_UNKNOWN
,
786 CPU_387_FLAGS
, 0, 0 },
787 { STRING_COMMA_LEN (".no87"), PROCESSOR_UNKNOWN
,
788 CPU_ANY87_FLAGS
, 0, 1 },
789 { STRING_COMMA_LEN (".mmx"), PROCESSOR_UNKNOWN
,
790 CPU_MMX_FLAGS
, 0, 0 },
791 { STRING_COMMA_LEN (".nommx"), PROCESSOR_UNKNOWN
,
792 CPU_3DNOWA_FLAGS
, 0, 1 },
793 { STRING_COMMA_LEN (".sse"), PROCESSOR_UNKNOWN
,
794 CPU_SSE_FLAGS
, 0, 0 },
795 { STRING_COMMA_LEN (".sse2"), PROCESSOR_UNKNOWN
,
796 CPU_SSE2_FLAGS
, 0, 0 },
797 { STRING_COMMA_LEN (".sse3"), PROCESSOR_UNKNOWN
,
798 CPU_SSE3_FLAGS
, 0, 0 },
799 { STRING_COMMA_LEN (".ssse3"), PROCESSOR_UNKNOWN
,
800 CPU_SSSE3_FLAGS
, 0, 0 },
801 { STRING_COMMA_LEN (".sse4.1"), PROCESSOR_UNKNOWN
,
802 CPU_SSE4_1_FLAGS
, 0, 0 },
803 { STRING_COMMA_LEN (".sse4.2"), PROCESSOR_UNKNOWN
,
804 CPU_SSE4_2_FLAGS
, 0, 0 },
805 { STRING_COMMA_LEN (".sse4"), PROCESSOR_UNKNOWN
,
806 CPU_SSE4_2_FLAGS
, 0, 0 },
807 { STRING_COMMA_LEN (".nosse"), PROCESSOR_UNKNOWN
,
808 CPU_ANY_SSE_FLAGS
, 0, 1 },
809 { STRING_COMMA_LEN (".avx"), PROCESSOR_UNKNOWN
,
810 CPU_AVX_FLAGS
, 0, 0 },
811 { STRING_COMMA_LEN (".avx2"), PROCESSOR_UNKNOWN
,
812 CPU_AVX2_FLAGS
, 0, 0 },
813 { STRING_COMMA_LEN (".avx512f"), PROCESSOR_UNKNOWN
,
814 CPU_AVX512F_FLAGS
, 0, 0 },
815 { STRING_COMMA_LEN (".avx512cd"), PROCESSOR_UNKNOWN
,
816 CPU_AVX512CD_FLAGS
, 0, 0 },
817 { STRING_COMMA_LEN (".avx512er"), PROCESSOR_UNKNOWN
,
818 CPU_AVX512ER_FLAGS
, 0, 0 },
819 { STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN
,
820 CPU_AVX512PF_FLAGS
, 0, 0 },
821 { STRING_COMMA_LEN (".noavx"), PROCESSOR_UNKNOWN
,
822 CPU_ANY_AVX_FLAGS
, 0, 1 },
823 { STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN
,
824 CPU_VMX_FLAGS
, 0, 0 },
825 { STRING_COMMA_LEN (".vmfunc"), PROCESSOR_UNKNOWN
,
826 CPU_VMFUNC_FLAGS
, 0, 0 },
827 { STRING_COMMA_LEN (".smx"), PROCESSOR_UNKNOWN
,
828 CPU_SMX_FLAGS
, 0, 0 },
829 { STRING_COMMA_LEN (".xsave"), PROCESSOR_UNKNOWN
,
830 CPU_XSAVE_FLAGS
, 0, 0 },
831 { STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN
,
832 CPU_XSAVEOPT_FLAGS
, 0, 0 },
833 { STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN
,
834 CPU_AES_FLAGS
, 0, 0 },
835 { STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN
,
836 CPU_PCLMUL_FLAGS
, 0, 0 },
837 { STRING_COMMA_LEN (".clmul"), PROCESSOR_UNKNOWN
,
838 CPU_PCLMUL_FLAGS
, 1, 0 },
839 { STRING_COMMA_LEN (".fsgsbase"), PROCESSOR_UNKNOWN
,
840 CPU_FSGSBASE_FLAGS
, 0, 0 },
841 { STRING_COMMA_LEN (".rdrnd"), PROCESSOR_UNKNOWN
,
842 CPU_RDRND_FLAGS
, 0, 0 },
843 { STRING_COMMA_LEN (".f16c"), PROCESSOR_UNKNOWN
,
844 CPU_F16C_FLAGS
, 0, 0 },
845 { STRING_COMMA_LEN (".bmi2"), PROCESSOR_UNKNOWN
,
846 CPU_BMI2_FLAGS
, 0, 0 },
847 { STRING_COMMA_LEN (".fma"), PROCESSOR_UNKNOWN
,
848 CPU_FMA_FLAGS
, 0, 0 },
849 { STRING_COMMA_LEN (".fma4"), PROCESSOR_UNKNOWN
,
850 CPU_FMA4_FLAGS
, 0, 0 },
851 { STRING_COMMA_LEN (".xop"), PROCESSOR_UNKNOWN
,
852 CPU_XOP_FLAGS
, 0, 0 },
853 { STRING_COMMA_LEN (".lwp"), PROCESSOR_UNKNOWN
,
854 CPU_LWP_FLAGS
, 0, 0 },
855 { STRING_COMMA_LEN (".movbe"), PROCESSOR_UNKNOWN
,
856 CPU_MOVBE_FLAGS
, 0, 0 },
857 { STRING_COMMA_LEN (".cx16"), PROCESSOR_UNKNOWN
,
858 CPU_CX16_FLAGS
, 0, 0 },
859 { STRING_COMMA_LEN (".ept"), PROCESSOR_UNKNOWN
,
860 CPU_EPT_FLAGS
, 0, 0 },
861 { STRING_COMMA_LEN (".lzcnt"), PROCESSOR_UNKNOWN
,
862 CPU_LZCNT_FLAGS
, 0, 0 },
863 { STRING_COMMA_LEN (".hle"), PROCESSOR_UNKNOWN
,
864 CPU_HLE_FLAGS
, 0, 0 },
865 { STRING_COMMA_LEN (".rtm"), PROCESSOR_UNKNOWN
,
866 CPU_RTM_FLAGS
, 0, 0 },
867 { STRING_COMMA_LEN (".invpcid"), PROCESSOR_UNKNOWN
,
868 CPU_INVPCID_FLAGS
, 0, 0 },
869 { STRING_COMMA_LEN (".clflush"), PROCESSOR_UNKNOWN
,
870 CPU_CLFLUSH_FLAGS
, 0, 0 },
871 { STRING_COMMA_LEN (".nop"), PROCESSOR_UNKNOWN
,
872 CPU_NOP_FLAGS
, 0, 0 },
873 { STRING_COMMA_LEN (".syscall"), PROCESSOR_UNKNOWN
,
874 CPU_SYSCALL_FLAGS
, 0, 0 },
875 { STRING_COMMA_LEN (".rdtscp"), PROCESSOR_UNKNOWN
,
876 CPU_RDTSCP_FLAGS
, 0, 0 },
877 { STRING_COMMA_LEN (".3dnow"), PROCESSOR_UNKNOWN
,
878 CPU_3DNOW_FLAGS
, 0, 0 },
879 { STRING_COMMA_LEN (".3dnowa"), PROCESSOR_UNKNOWN
,
880 CPU_3DNOWA_FLAGS
, 0, 0 },
881 { STRING_COMMA_LEN (".padlock"), PROCESSOR_UNKNOWN
,
882 CPU_PADLOCK_FLAGS
, 0, 0 },
883 { STRING_COMMA_LEN (".pacifica"), PROCESSOR_UNKNOWN
,
884 CPU_SVME_FLAGS
, 1, 0 },
885 { STRING_COMMA_LEN (".svme"), PROCESSOR_UNKNOWN
,
886 CPU_SVME_FLAGS
, 0, 0 },
887 { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN
,
888 CPU_SSE4A_FLAGS
, 0, 0 },
889 { STRING_COMMA_LEN (".abm"), PROCESSOR_UNKNOWN
,
890 CPU_ABM_FLAGS
, 0, 0 },
891 { STRING_COMMA_LEN (".bmi"), PROCESSOR_UNKNOWN
,
892 CPU_BMI_FLAGS
, 0, 0 },
893 { STRING_COMMA_LEN (".tbm"), PROCESSOR_UNKNOWN
,
894 CPU_TBM_FLAGS
, 0, 0 },
895 { STRING_COMMA_LEN (".adx"), PROCESSOR_UNKNOWN
,
896 CPU_ADX_FLAGS
, 0, 0 },
897 { STRING_COMMA_LEN (".rdseed"), PROCESSOR_UNKNOWN
,
898 CPU_RDSEED_FLAGS
, 0, 0 },
899 { STRING_COMMA_LEN (".prfchw"), PROCESSOR_UNKNOWN
,
900 CPU_PRFCHW_FLAGS
, 0, 0 },
901 { STRING_COMMA_LEN (".smap"), PROCESSOR_UNKNOWN
,
902 CPU_SMAP_FLAGS
, 0, 0 },
903 { STRING_COMMA_LEN (".mpx"), PROCESSOR_UNKNOWN
,
904 CPU_MPX_FLAGS
, 0, 0 },
905 { STRING_COMMA_LEN (".sha"), PROCESSOR_UNKNOWN
,
906 CPU_SHA_FLAGS
, 0, 0 },
910 /* Like s_lcomm_internal in gas/read.c but the alignment string
911 is allowed to be optional. */
914 pe_lcomm_internal (int needs_align
, symbolS
*symbolP
, addressT size
)
921 && *input_line_pointer
== ',')
923 align
= parse_align (needs_align
- 1);
925 if (align
== (addressT
) -1)
940 bss_alloc (symbolP
, size
, align
);
945 pe_lcomm (int needs_align
)
947 s_comm_internal (needs_align
* 2, pe_lcomm_internal
);
951 const pseudo_typeS md_pseudo_table
[] =
953 #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO)
954 {"align", s_align_bytes
, 0},
956 {"align", s_align_ptwo
, 0},
958 {"arch", set_cpu_arch
, 0},
962 {"lcomm", pe_lcomm
, 1},
964 {"ffloat", float_cons
, 'f'},
965 {"dfloat", float_cons
, 'd'},
966 {"tfloat", float_cons
, 'x'},
968 {"slong", signed_cons
, 4},
969 {"noopt", s_ignore
, 0},
970 {"optim", s_ignore
, 0},
971 {"code16gcc", set_16bit_gcc_code_flag
, CODE_16BIT
},
972 {"code16", set_code_flag
, CODE_16BIT
},
973 {"code32", set_code_flag
, CODE_32BIT
},
974 {"code64", set_code_flag
, CODE_64BIT
},
975 {"intel_syntax", set_intel_syntax
, 1},
976 {"att_syntax", set_intel_syntax
, 0},
977 {"intel_mnemonic", set_intel_mnemonic
, 1},
978 {"att_mnemonic", set_intel_mnemonic
, 0},
979 {"allow_index_reg", set_allow_index_reg
, 1},
980 {"disallow_index_reg", set_allow_index_reg
, 0},
981 {"sse_check", set_check
, 0},
982 {"operand_check", set_check
, 1},
983 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
984 {"largecomm", handle_large_common
, 0},
986 {"file", (void (*) (int)) dwarf2_directive_file
, 0},
987 {"loc", dwarf2_directive_loc
, 0},
988 {"loc_mark_labels", dwarf2_directive_loc_mark_labels
, 0},
991 {"secrel32", pe_directive_secrel
, 0},
996 /* For interface with expression (). */
997 extern char *input_line_pointer
;
999 /* Hash table for instruction mnemonic lookup. */
1000 static struct hash_control
*op_hash
;
1002 /* Hash table for register lookup. */
1003 static struct hash_control
*reg_hash
;
1006 i386_align_code (fragS
*fragP
, int count
)
1008 /* Various efficient no-op patterns for aligning code labels.
1009 Note: Don't try to assemble the instructions in the comments.
1010 0L and 0w are not legal. */
1011 static const char f32_1
[] =
1013 static const char f32_2
[] =
1014 {0x66,0x90}; /* xchg %ax,%ax */
1015 static const char f32_3
[] =
1016 {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */
1017 static const char f32_4
[] =
1018 {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */
1019 static const char f32_5
[] =
1021 0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */
1022 static const char f32_6
[] =
1023 {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */
1024 static const char f32_7
[] =
1025 {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */
1026 static const char f32_8
[] =
1028 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */
1029 static const char f32_9
[] =
1030 {0x89,0xf6, /* movl %esi,%esi */
1031 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */
1032 static const char f32_10
[] =
1033 {0x8d,0x76,0x00, /* leal 0(%esi),%esi */
1034 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */
1035 static const char f32_11
[] =
1036 {0x8d,0x74,0x26,0x00, /* leal 0(%esi,1),%esi */
1037 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */
1038 static const char f32_12
[] =
1039 {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */
1040 0x8d,0xbf,0x00,0x00,0x00,0x00}; /* leal 0L(%edi),%edi */
1041 static const char f32_13
[] =
1042 {0x8d,0xb6,0x00,0x00,0x00,0x00, /* leal 0L(%esi),%esi */
1043 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */
1044 static const char f32_14
[] =
1045 {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00, /* leal 0L(%esi,1),%esi */
1046 0x8d,0xbc,0x27,0x00,0x00,0x00,0x00}; /* leal 0L(%edi,1),%edi */
1047 static const char f16_3
[] =
1048 {0x8d,0x74,0x00}; /* lea 0(%esi),%esi */
1049 static const char f16_4
[] =
1050 {0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */
1051 static const char f16_5
[] =
1053 0x8d,0xb4,0x00,0x00}; /* lea 0w(%si),%si */
1054 static const char f16_6
[] =
1055 {0x89,0xf6, /* mov %si,%si */
1056 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */
1057 static const char f16_7
[] =
1058 {0x8d,0x74,0x00, /* lea 0(%si),%si */
1059 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */
1060 static const char f16_8
[] =
1061 {0x8d,0xb4,0x00,0x00, /* lea 0w(%si),%si */
1062 0x8d,0xbd,0x00,0x00}; /* lea 0w(%di),%di */
1063 static const char jump_31
[] =
1064 {0xeb,0x1d,0x90,0x90,0x90,0x90,0x90, /* jmp .+31; lotsa nops */
1065 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
1066 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
1067 0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90};
1068 static const char *const f32_patt
[] = {
1069 f32_1
, f32_2
, f32_3
, f32_4
, f32_5
, f32_6
, f32_7
, f32_8
,
1070 f32_9
, f32_10
, f32_11
, f32_12
, f32_13
, f32_14
1072 static const char *const f16_patt
[] = {
1073 f32_1
, f32_2
, f16_3
, f16_4
, f16_5
, f16_6
, f16_7
, f16_8
1075 /* nopl (%[re]ax) */
1076 static const char alt_3
[] =
1078 /* nopl 0(%[re]ax) */
1079 static const char alt_4
[] =
1080 {0x0f,0x1f,0x40,0x00};
1081 /* nopl 0(%[re]ax,%[re]ax,1) */
1082 static const char alt_5
[] =
1083 {0x0f,0x1f,0x44,0x00,0x00};
1084 /* nopw 0(%[re]ax,%[re]ax,1) */
1085 static const char alt_6
[] =
1086 {0x66,0x0f,0x1f,0x44,0x00,0x00};
1087 /* nopl 0L(%[re]ax) */
1088 static const char alt_7
[] =
1089 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1090 /* nopl 0L(%[re]ax,%[re]ax,1) */
1091 static const char alt_8
[] =
1092 {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1093 /* nopw 0L(%[re]ax,%[re]ax,1) */
1094 static const char alt_9
[] =
1095 {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1096 /* nopw %cs:0L(%[re]ax,%[re]ax,1) */
1097 static const char alt_10
[] =
1098 {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1100 nopw %cs:0L(%[re]ax,%[re]ax,1) */
1101 static const char alt_long_11
[] =
1103 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1106 nopw %cs:0L(%[re]ax,%[re]ax,1) */
1107 static const char alt_long_12
[] =
1110 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1114 nopw %cs:0L(%[re]ax,%[re]ax,1) */
1115 static const char alt_long_13
[] =
1119 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1124 nopw %cs:0L(%[re]ax,%[re]ax,1) */
1125 static const char alt_long_14
[] =
1130 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1136 nopw %cs:0L(%[re]ax,%[re]ax,1) */
1137 static const char alt_long_15
[] =
1143 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1144 /* nopl 0(%[re]ax,%[re]ax,1)
1145 nopw 0(%[re]ax,%[re]ax,1) */
1146 static const char alt_short_11
[] =
1147 {0x0f,0x1f,0x44,0x00,0x00,
1148 0x66,0x0f,0x1f,0x44,0x00,0x00};
1149 /* nopw 0(%[re]ax,%[re]ax,1)
1150 nopw 0(%[re]ax,%[re]ax,1) */
1151 static const char alt_short_12
[] =
1152 {0x66,0x0f,0x1f,0x44,0x00,0x00,
1153 0x66,0x0f,0x1f,0x44,0x00,0x00};
1154 /* nopw 0(%[re]ax,%[re]ax,1)
1156 static const char alt_short_13
[] =
1157 {0x66,0x0f,0x1f,0x44,0x00,0x00,
1158 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1161 static const char alt_short_14
[] =
1162 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00,
1163 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1165 nopl 0L(%[re]ax,%[re]ax,1) */
1166 static const char alt_short_15
[] =
1167 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00,
1168 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1169 static const char *const alt_short_patt
[] = {
1170 f32_1
, f32_2
, alt_3
, alt_4
, alt_5
, alt_6
, alt_7
, alt_8
,
1171 alt_9
, alt_10
, alt_short_11
, alt_short_12
, alt_short_13
,
1172 alt_short_14
, alt_short_15
1174 static const char *const alt_long_patt
[] = {
1175 f32_1
, f32_2
, alt_3
, alt_4
, alt_5
, alt_6
, alt_7
, alt_8
,
1176 alt_9
, alt_10
, alt_long_11
, alt_long_12
, alt_long_13
,
1177 alt_long_14
, alt_long_15
1180 /* Only align for at least a positive non-zero boundary. */
1181 if (count
<= 0 || count
> MAX_MEM_FOR_RS_ALIGN_CODE
)
1184 /* We need to decide which NOP sequence to use for 32bit and
1185 64bit. When -mtune= is used:
1187 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and
1188 PROCESSOR_GENERIC32, f32_patt will be used.
1189 2. For PROCESSOR_PENTIUMPRO, PROCESSOR_PENTIUM4, PROCESSOR_NOCONA,
1190 PROCESSOR_CORE, PROCESSOR_CORE2, PROCESSOR_COREI7, and
1191 PROCESSOR_GENERIC64, alt_long_patt will be used.
1192 3. For PROCESSOR_ATHLON, PROCESSOR_K6, PROCESSOR_K8 and
1193 PROCESSOR_AMDFAM10, PROCESSOR_BD and PROCESSOR_BT, alt_short_patt
1196 When -mtune= isn't used, alt_long_patt will be used if
1197 cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will
1200 When -march= or .arch is used, we can't use anything beyond
1201 cpu_arch_isa_flags. */
1203 if (flag_code
== CODE_16BIT
)
1207 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
,
1209 /* Adjust jump offset. */
1210 fragP
->fr_literal
[fragP
->fr_fix
+ 1] = count
- 2;
1213 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
,
1214 f16_patt
[count
- 1], count
);
1218 const char *const *patt
= NULL
;
1220 if (fragP
->tc_frag_data
.isa
== PROCESSOR_UNKNOWN
)
1222 /* PROCESSOR_UNKNOWN means that all ISAs may be used. */
1223 switch (cpu_arch_tune
)
1225 case PROCESSOR_UNKNOWN
:
1226 /* We use cpu_arch_isa_flags to check if we SHOULD
1227 optimize with nops. */
1228 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1229 patt
= alt_long_patt
;
1233 case PROCESSOR_PENTIUM4
:
1234 case PROCESSOR_NOCONA
:
1235 case PROCESSOR_CORE
:
1236 case PROCESSOR_CORE2
:
1237 case PROCESSOR_COREI7
:
1238 case PROCESSOR_L1OM
:
1239 case PROCESSOR_K1OM
:
1240 case PROCESSOR_GENERIC64
:
1241 patt
= alt_long_patt
;
1244 case PROCESSOR_ATHLON
:
1246 case PROCESSOR_AMDFAM10
:
1249 patt
= alt_short_patt
;
1251 case PROCESSOR_I386
:
1252 case PROCESSOR_I486
:
1253 case PROCESSOR_PENTIUM
:
1254 case PROCESSOR_PENTIUMPRO
:
1255 case PROCESSOR_GENERIC32
:
1262 switch (fragP
->tc_frag_data
.tune
)
1264 case PROCESSOR_UNKNOWN
:
1265 /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be
1266 PROCESSOR_UNKNOWN. */
1270 case PROCESSOR_I386
:
1271 case PROCESSOR_I486
:
1272 case PROCESSOR_PENTIUM
:
1274 case PROCESSOR_ATHLON
:
1276 case PROCESSOR_AMDFAM10
:
1279 case PROCESSOR_GENERIC32
:
1280 /* We use cpu_arch_isa_flags to check if we CAN optimize
1282 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1283 patt
= alt_short_patt
;
1287 case PROCESSOR_PENTIUMPRO
:
1288 case PROCESSOR_PENTIUM4
:
1289 case PROCESSOR_NOCONA
:
1290 case PROCESSOR_CORE
:
1291 case PROCESSOR_CORE2
:
1292 case PROCESSOR_COREI7
:
1293 case PROCESSOR_L1OM
:
1294 case PROCESSOR_K1OM
:
1295 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1296 patt
= alt_long_patt
;
1300 case PROCESSOR_GENERIC64
:
1301 patt
= alt_long_patt
;
1306 if (patt
== f32_patt
)
1308 /* If the padding is less than 15 bytes, we use the normal
1309 ones. Otherwise, we use a jump instruction and adjust
1313 /* For 64bit, the limit is 3 bytes. */
1314 if (flag_code
== CODE_64BIT
1315 && fragP
->tc_frag_data
.isa_flags
.bitfield
.cpulm
)
1320 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
,
1321 patt
[count
- 1], count
);
1324 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
,
1326 /* Adjust jump offset. */
1327 fragP
->fr_literal
[fragP
->fr_fix
+ 1] = count
- 2;
1332 /* Maximum length of an instruction is 15 byte. If the
1333 padding is greater than 15 bytes and we don't use jump,
1334 we have to break it into smaller pieces. */
1335 int padding
= count
;
1336 while (padding
> 15)
1339 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
+ padding
,
1344 memcpy (fragP
->fr_literal
+ fragP
->fr_fix
,
1345 patt
[padding
- 1], padding
);
1348 fragP
->fr_var
= count
;
1352 operand_type_all_zero (const union i386_operand_type
*x
)
1354 switch (ARRAY_SIZE(x
->array
))
1363 return !x
->array
[0];
1370 operand_type_set (union i386_operand_type
*x
, unsigned int v
)
1372 switch (ARRAY_SIZE(x
->array
))
1387 operand_type_equal (const union i386_operand_type
*x
,
1388 const union i386_operand_type
*y
)
1390 switch (ARRAY_SIZE(x
->array
))
1393 if (x
->array
[2] != y
->array
[2])
1396 if (x
->array
[1] != y
->array
[1])
1399 return x
->array
[0] == y
->array
[0];
1407 cpu_flags_all_zero (const union i386_cpu_flags
*x
)
1409 switch (ARRAY_SIZE(x
->array
))
1418 return !x
->array
[0];
1425 cpu_flags_set (union i386_cpu_flags
*x
, unsigned int v
)
1427 switch (ARRAY_SIZE(x
->array
))
1442 cpu_flags_equal (const union i386_cpu_flags
*x
,
1443 const union i386_cpu_flags
*y
)
1445 switch (ARRAY_SIZE(x
->array
))
1448 if (x
->array
[2] != y
->array
[2])
1451 if (x
->array
[1] != y
->array
[1])
1454 return x
->array
[0] == y
->array
[0];
1462 cpu_flags_check_cpu64 (i386_cpu_flags f
)
1464 return !((flag_code
== CODE_64BIT
&& f
.bitfield
.cpuno64
)
1465 || (flag_code
!= CODE_64BIT
&& f
.bitfield
.cpu64
));
1468 static INLINE i386_cpu_flags
1469 cpu_flags_and (i386_cpu_flags x
, i386_cpu_flags y
)
1471 switch (ARRAY_SIZE (x
.array
))
1474 x
.array
[2] &= y
.array
[2];
1476 x
.array
[1] &= y
.array
[1];
1478 x
.array
[0] &= y
.array
[0];
1486 static INLINE i386_cpu_flags
1487 cpu_flags_or (i386_cpu_flags x
, i386_cpu_flags y
)
1489 switch (ARRAY_SIZE (x
.array
))
1492 x
.array
[2] |= y
.array
[2];
1494 x
.array
[1] |= y
.array
[1];
1496 x
.array
[0] |= y
.array
[0];
1504 static INLINE i386_cpu_flags
1505 cpu_flags_and_not (i386_cpu_flags x
, i386_cpu_flags y
)
1507 switch (ARRAY_SIZE (x
.array
))
1510 x
.array
[2] &= ~y
.array
[2];
1512 x
.array
[1] &= ~y
.array
[1];
1514 x
.array
[0] &= ~y
.array
[0];
1522 #define CPU_FLAGS_ARCH_MATCH 0x1
1523 #define CPU_FLAGS_64BIT_MATCH 0x2
1524 #define CPU_FLAGS_AES_MATCH 0x4
1525 #define CPU_FLAGS_PCLMUL_MATCH 0x8
1526 #define CPU_FLAGS_AVX_MATCH 0x10
1528 #define CPU_FLAGS_32BIT_MATCH \
1529 (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_AES_MATCH \
1530 | CPU_FLAGS_PCLMUL_MATCH | CPU_FLAGS_AVX_MATCH)
1531 #define CPU_FLAGS_PERFECT_MATCH \
1532 (CPU_FLAGS_32BIT_MATCH | CPU_FLAGS_64BIT_MATCH)
1534 /* Return CPU flags match bits. */
1537 cpu_flags_match (const insn_template
*t
)
1539 i386_cpu_flags x
= t
->cpu_flags
;
1540 int match
= cpu_flags_check_cpu64 (x
) ? CPU_FLAGS_64BIT_MATCH
: 0;
1542 x
.bitfield
.cpu64
= 0;
1543 x
.bitfield
.cpuno64
= 0;
1545 if (cpu_flags_all_zero (&x
))
1547 /* This instruction is available on all archs. */
1548 match
|= CPU_FLAGS_32BIT_MATCH
;
1552 /* This instruction is available only on some archs. */
1553 i386_cpu_flags cpu
= cpu_arch_flags
;
1555 cpu
.bitfield
.cpu64
= 0;
1556 cpu
.bitfield
.cpuno64
= 0;
1557 cpu
= cpu_flags_and (x
, cpu
);
1558 if (!cpu_flags_all_zero (&cpu
))
1560 if (x
.bitfield
.cpuavx
)
1562 /* We only need to check AES/PCLMUL/SSE2AVX with AVX. */
1563 if (cpu
.bitfield
.cpuavx
)
1565 /* Check SSE2AVX. */
1566 if (!t
->opcode_modifier
.sse2avx
|| sse2avx
)
1568 match
|= (CPU_FLAGS_ARCH_MATCH
1569 | CPU_FLAGS_AVX_MATCH
);
1571 if (!x
.bitfield
.cpuaes
|| cpu
.bitfield
.cpuaes
)
1572 match
|= CPU_FLAGS_AES_MATCH
;
1574 if (!x
.bitfield
.cpupclmul
1575 || cpu
.bitfield
.cpupclmul
)
1576 match
|= CPU_FLAGS_PCLMUL_MATCH
;
1580 match
|= CPU_FLAGS_ARCH_MATCH
;
1583 match
|= CPU_FLAGS_32BIT_MATCH
;
1589 static INLINE i386_operand_type
1590 operand_type_and (i386_operand_type x
, i386_operand_type y
)
1592 switch (ARRAY_SIZE (x
.array
))
1595 x
.array
[2] &= y
.array
[2];
1597 x
.array
[1] &= y
.array
[1];
1599 x
.array
[0] &= y
.array
[0];
1607 static INLINE i386_operand_type
1608 operand_type_or (i386_operand_type x
, i386_operand_type y
)
1610 switch (ARRAY_SIZE (x
.array
))
1613 x
.array
[2] |= y
.array
[2];
1615 x
.array
[1] |= y
.array
[1];
1617 x
.array
[0] |= y
.array
[0];
1625 static INLINE i386_operand_type
1626 operand_type_xor (i386_operand_type x
, i386_operand_type y
)
1628 switch (ARRAY_SIZE (x
.array
))
1631 x
.array
[2] ^= y
.array
[2];
1633 x
.array
[1] ^= y
.array
[1];
1635 x
.array
[0] ^= y
.array
[0];
1643 static const i386_operand_type acc32
= OPERAND_TYPE_ACC32
;
1644 static const i386_operand_type acc64
= OPERAND_TYPE_ACC64
;
1645 static const i386_operand_type control
= OPERAND_TYPE_CONTROL
;
1646 static const i386_operand_type inoutportreg
1647 = OPERAND_TYPE_INOUTPORTREG
;
1648 static const i386_operand_type reg16_inoutportreg
1649 = OPERAND_TYPE_REG16_INOUTPORTREG
;
1650 static const i386_operand_type disp16
= OPERAND_TYPE_DISP16
;
1651 static const i386_operand_type disp32
= OPERAND_TYPE_DISP32
;
1652 static const i386_operand_type disp32s
= OPERAND_TYPE_DISP32S
;
1653 static const i386_operand_type disp16_32
= OPERAND_TYPE_DISP16_32
;
1654 static const i386_operand_type anydisp
1655 = OPERAND_TYPE_ANYDISP
;
1656 static const i386_operand_type regxmm
= OPERAND_TYPE_REGXMM
;
1657 static const i386_operand_type regymm
= OPERAND_TYPE_REGYMM
;
1658 static const i386_operand_type regzmm
= OPERAND_TYPE_REGZMM
;
1659 static const i386_operand_type regmask
= OPERAND_TYPE_REGMASK
;
1660 static const i386_operand_type imm8
= OPERAND_TYPE_IMM8
;
1661 static const i386_operand_type imm8s
= OPERAND_TYPE_IMM8S
;
1662 static const i386_operand_type imm16
= OPERAND_TYPE_IMM16
;
1663 static const i386_operand_type imm32
= OPERAND_TYPE_IMM32
;
1664 static const i386_operand_type imm32s
= OPERAND_TYPE_IMM32S
;
1665 static const i386_operand_type imm64
= OPERAND_TYPE_IMM64
;
1666 static const i386_operand_type imm16_32
= OPERAND_TYPE_IMM16_32
;
1667 static const i386_operand_type imm16_32s
= OPERAND_TYPE_IMM16_32S
;
1668 static const i386_operand_type imm16_32_32s
= OPERAND_TYPE_IMM16_32_32S
;
1669 static const i386_operand_type vec_imm4
= OPERAND_TYPE_VEC_IMM4
;
1670 static const i386_operand_type regbnd
= OPERAND_TYPE_REGBND
;
1671 static const i386_operand_type vec_disp8
= OPERAND_TYPE_VEC_DISP8
;
1682 operand_type_check (i386_operand_type t
, enum operand_type c
)
1687 return (t
.bitfield
.reg8
1690 || t
.bitfield
.reg64
);
1693 return (t
.bitfield
.imm8
1697 || t
.bitfield
.imm32s
1698 || t
.bitfield
.imm64
);
1701 return (t
.bitfield
.disp8
1702 || t
.bitfield
.disp16
1703 || t
.bitfield
.disp32
1704 || t
.bitfield
.disp32s
1705 || t
.bitfield
.disp64
);
1708 return (t
.bitfield
.disp8
1709 || t
.bitfield
.disp16
1710 || t
.bitfield
.disp32
1711 || t
.bitfield
.disp32s
1712 || t
.bitfield
.disp64
1713 || t
.bitfield
.baseindex
);
1722 /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit on
1723 operand J for instruction template T. */
1726 match_reg_size (const insn_template
*t
, unsigned int j
)
1728 return !((i
.types
[j
].bitfield
.byte
1729 && !t
->operand_types
[j
].bitfield
.byte
)
1730 || (i
.types
[j
].bitfield
.word
1731 && !t
->operand_types
[j
].bitfield
.word
)
1732 || (i
.types
[j
].bitfield
.dword
1733 && !t
->operand_types
[j
].bitfield
.dword
)
1734 || (i
.types
[j
].bitfield
.qword
1735 && !t
->operand_types
[j
].bitfield
.qword
));
1738 /* Return 1 if there is no conflict in any size on operand J for
1739 instruction template T. */
1742 match_mem_size (const insn_template
*t
, unsigned int j
)
1744 return (match_reg_size (t
, j
)
1745 && !((i
.types
[j
].bitfield
.unspecified
1746 && !t
->operand_types
[j
].bitfield
.unspecified
)
1747 || (i
.types
[j
].bitfield
.fword
1748 && !t
->operand_types
[j
].bitfield
.fword
)
1749 || (i
.types
[j
].bitfield
.tbyte
1750 && !t
->operand_types
[j
].bitfield
.tbyte
)
1751 || (i
.types
[j
].bitfield
.xmmword
1752 && !t
->operand_types
[j
].bitfield
.xmmword
)
1753 || (i
.types
[j
].bitfield
.ymmword
1754 && !t
->operand_types
[j
].bitfield
.ymmword
)
1755 || (i
.types
[j
].bitfield
.zmmword
1756 && !t
->operand_types
[j
].bitfield
.zmmword
)));
1759 /* Return 1 if there is no size conflict on any operands for
1760 instruction template T. */
1763 operand_size_match (const insn_template
*t
)
1768 /* Don't check jump instructions. */
1769 if (t
->opcode_modifier
.jump
1770 || t
->opcode_modifier
.jumpbyte
1771 || t
->opcode_modifier
.jumpdword
1772 || t
->opcode_modifier
.jumpintersegment
)
1775 /* Check memory and accumulator operand size. */
1776 for (j
= 0; j
< i
.operands
; j
++)
1778 if (t
->operand_types
[j
].bitfield
.anysize
)
1781 if (t
->operand_types
[j
].bitfield
.acc
&& !match_reg_size (t
, j
))
1787 if (i
.types
[j
].bitfield
.mem
&& !match_mem_size (t
, j
))
1796 else if (!t
->opcode_modifier
.d
&& !t
->opcode_modifier
.floatd
)
1799 i
.error
= operand_size_mismatch
;
1803 /* Check reverse. */
1804 gas_assert (i
.operands
== 2);
1807 for (j
= 0; j
< 2; j
++)
1809 if (t
->operand_types
[j
].bitfield
.acc
1810 && !match_reg_size (t
, j
? 0 : 1))
1813 if (i
.types
[j
].bitfield
.mem
1814 && !match_mem_size (t
, j
? 0 : 1))
1822 operand_type_match (i386_operand_type overlap
,
1823 i386_operand_type given
)
1825 i386_operand_type temp
= overlap
;
1827 temp
.bitfield
.jumpabsolute
= 0;
1828 temp
.bitfield
.unspecified
= 0;
1829 temp
.bitfield
.byte
= 0;
1830 temp
.bitfield
.word
= 0;
1831 temp
.bitfield
.dword
= 0;
1832 temp
.bitfield
.fword
= 0;
1833 temp
.bitfield
.qword
= 0;
1834 temp
.bitfield
.tbyte
= 0;
1835 temp
.bitfield
.xmmword
= 0;
1836 temp
.bitfield
.ymmword
= 0;
1837 temp
.bitfield
.zmmword
= 0;
1838 if (operand_type_all_zero (&temp
))
1841 if (given
.bitfield
.baseindex
== overlap
.bitfield
.baseindex
1842 && given
.bitfield
.jumpabsolute
== overlap
.bitfield
.jumpabsolute
)
1846 i
.error
= operand_type_mismatch
;
1850 /* If given types g0 and g1 are registers they must be of the same type
1851 unless the expected operand type register overlap is null.
1852 Note that Acc in a template matches every size of reg. */
1855 operand_type_register_match (i386_operand_type m0
,
1856 i386_operand_type g0
,
1857 i386_operand_type t0
,
1858 i386_operand_type m1
,
1859 i386_operand_type g1
,
1860 i386_operand_type t1
)
1862 if (!operand_type_check (g0
, reg
))
1865 if (!operand_type_check (g1
, reg
))
1868 if (g0
.bitfield
.reg8
== g1
.bitfield
.reg8
1869 && g0
.bitfield
.reg16
== g1
.bitfield
.reg16
1870 && g0
.bitfield
.reg32
== g1
.bitfield
.reg32
1871 && g0
.bitfield
.reg64
== g1
.bitfield
.reg64
)
1874 if (m0
.bitfield
.acc
)
1876 t0
.bitfield
.reg8
= 1;
1877 t0
.bitfield
.reg16
= 1;
1878 t0
.bitfield
.reg32
= 1;
1879 t0
.bitfield
.reg64
= 1;
1882 if (m1
.bitfield
.acc
)
1884 t1
.bitfield
.reg8
= 1;
1885 t1
.bitfield
.reg16
= 1;
1886 t1
.bitfield
.reg32
= 1;
1887 t1
.bitfield
.reg64
= 1;
1890 if (!(t0
.bitfield
.reg8
& t1
.bitfield
.reg8
)
1891 && !(t0
.bitfield
.reg16
& t1
.bitfield
.reg16
)
1892 && !(t0
.bitfield
.reg32
& t1
.bitfield
.reg32
)
1893 && !(t0
.bitfield
.reg64
& t1
.bitfield
.reg64
))
1896 i
.error
= register_type_mismatch
;
1901 static INLINE
unsigned int
1902 register_number (const reg_entry
*r
)
1904 unsigned int nr
= r
->reg_num
;
1906 if (r
->reg_flags
& RegRex
)
1912 static INLINE
unsigned int
1913 mode_from_disp_size (i386_operand_type t
)
1915 if (t
.bitfield
.disp8
|| t
.bitfield
.vec_disp8
)
1917 else if (t
.bitfield
.disp16
1918 || t
.bitfield
.disp32
1919 || t
.bitfield
.disp32s
)
1926 fits_in_signed_byte (offsetT num
)
1928 return (num
>= -128) && (num
<= 127);
1932 fits_in_unsigned_byte (offsetT num
)
1934 return (num
& 0xff) == num
;
1938 fits_in_unsigned_word (offsetT num
)
1940 return (num
& 0xffff) == num
;
1944 fits_in_signed_word (offsetT num
)
1946 return (-32768 <= num
) && (num
<= 32767);
1950 fits_in_signed_long (offsetT num ATTRIBUTE_UNUSED
)
1955 return (!(((offsetT
) -1 << 31) & num
)
1956 || (((offsetT
) -1 << 31) & num
) == ((offsetT
) -1 << 31));
1958 } /* fits_in_signed_long() */
1961 fits_in_unsigned_long (offsetT num ATTRIBUTE_UNUSED
)
1966 return (num
& (((offsetT
) 2 << 31) - 1)) == num
;
1968 } /* fits_in_unsigned_long() */
1971 fits_in_vec_disp8 (offsetT num
)
1973 int shift
= i
.memshift
;
1979 mask
= (1 << shift
) - 1;
1981 /* Return 0 if NUM isn't properly aligned. */
1985 /* Check if NUM will fit in 8bit after shift. */
1986 return fits_in_signed_byte (num
>> shift
);
1990 fits_in_imm4 (offsetT num
)
1992 return (num
& 0xf) == num
;
1995 static i386_operand_type
1996 smallest_imm_type (offsetT num
)
1998 i386_operand_type t
;
2000 operand_type_set (&t
, 0);
2001 t
.bitfield
.imm64
= 1;
2003 if (cpu_arch_tune
!= PROCESSOR_I486
&& num
== 1)
2005 /* This code is disabled on the 486 because all the Imm1 forms
2006 in the opcode table are slower on the i486. They're the
2007 versions with the implicitly specified single-position
2008 displacement, which has another syntax if you really want to
2010 t
.bitfield
.imm1
= 1;
2011 t
.bitfield
.imm8
= 1;
2012 t
.bitfield
.imm8s
= 1;
2013 t
.bitfield
.imm16
= 1;
2014 t
.bitfield
.imm32
= 1;
2015 t
.bitfield
.imm32s
= 1;
2017 else if (fits_in_signed_byte (num
))
2019 t
.bitfield
.imm8
= 1;
2020 t
.bitfield
.imm8s
= 1;
2021 t
.bitfield
.imm16
= 1;
2022 t
.bitfield
.imm32
= 1;
2023 t
.bitfield
.imm32s
= 1;
2025 else if (fits_in_unsigned_byte (num
))
2027 t
.bitfield
.imm8
= 1;
2028 t
.bitfield
.imm16
= 1;
2029 t
.bitfield
.imm32
= 1;
2030 t
.bitfield
.imm32s
= 1;
2032 else if (fits_in_signed_word (num
) || fits_in_unsigned_word (num
))
2034 t
.bitfield
.imm16
= 1;
2035 t
.bitfield
.imm32
= 1;
2036 t
.bitfield
.imm32s
= 1;
2038 else if (fits_in_signed_long (num
))
2040 t
.bitfield
.imm32
= 1;
2041 t
.bitfield
.imm32s
= 1;
2043 else if (fits_in_unsigned_long (num
))
2044 t
.bitfield
.imm32
= 1;
2050 offset_in_range (offsetT val
, int size
)
2056 case 1: mask
= ((addressT
) 1 << 8) - 1; break;
2057 case 2: mask
= ((addressT
) 1 << 16) - 1; break;
2058 case 4: mask
= ((addressT
) 2 << 31) - 1; break;
2060 case 8: mask
= ((addressT
) 2 << 63) - 1; break;
2066 /* If BFD64, sign extend val for 32bit address mode. */
2067 if (flag_code
!= CODE_64BIT
2068 || i
.prefix
[ADDR_PREFIX
])
2069 if ((val
& ~(((addressT
) 2 << 31) - 1)) == 0)
2070 val
= (val
^ ((addressT
) 1 << 31)) - ((addressT
) 1 << 31);
2073 if ((val
& ~mask
) != 0 && (val
& ~mask
) != ~mask
)
2075 char buf1
[40], buf2
[40];
2077 sprint_value (buf1
, val
);
2078 sprint_value (buf2
, val
& mask
);
2079 as_warn (_("%s shortened to %s"), buf1
, buf2
);
2093 a. PREFIX_EXIST if attempting to add a prefix where one from the
2094 same class already exists.
2095 b. PREFIX_LOCK if lock prefix is added.
2096 c. PREFIX_REP if rep/repne prefix is added.
2097 d. PREFIX_OTHER if other prefix is added.
2100 static enum PREFIX_GROUP
2101 add_prefix (unsigned int prefix
)
2103 enum PREFIX_GROUP ret
= PREFIX_OTHER
;
2106 if (prefix
>= REX_OPCODE
&& prefix
< REX_OPCODE
+ 16
2107 && flag_code
== CODE_64BIT
)
2109 if ((i
.prefix
[REX_PREFIX
] & prefix
& REX_W
)
2110 || ((i
.prefix
[REX_PREFIX
] & (REX_R
| REX_X
| REX_B
))
2111 && (prefix
& (REX_R
| REX_X
| REX_B
))))
2122 case CS_PREFIX_OPCODE
:
2123 case DS_PREFIX_OPCODE
:
2124 case ES_PREFIX_OPCODE
:
2125 case FS_PREFIX_OPCODE
:
2126 case GS_PREFIX_OPCODE
:
2127 case SS_PREFIX_OPCODE
:
2131 case REPNE_PREFIX_OPCODE
:
2132 case REPE_PREFIX_OPCODE
:
2137 case LOCK_PREFIX_OPCODE
:
2146 case ADDR_PREFIX_OPCODE
:
2150 case DATA_PREFIX_OPCODE
:
2154 if (i
.prefix
[q
] != 0)
2162 i
.prefix
[q
] |= prefix
;
2165 as_bad (_("same type of prefix used twice"));
2171 update_code_flag (int value
, int check
)
2173 PRINTF_LIKE ((*as_error
));
2175 flag_code
= (enum flag_code
) value
;
2176 if (flag_code
== CODE_64BIT
)
2178 cpu_arch_flags
.bitfield
.cpu64
= 1;
2179 cpu_arch_flags
.bitfield
.cpuno64
= 0;
2183 cpu_arch_flags
.bitfield
.cpu64
= 0;
2184 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2186 if (value
== CODE_64BIT
&& !cpu_arch_flags
.bitfield
.cpulm
)
2189 as_error
= as_fatal
;
2192 (*as_error
) (_("64bit mode not supported on `%s'."),
2193 cpu_arch_name
? cpu_arch_name
: default_arch
);
2195 if (value
== CODE_32BIT
&& !cpu_arch_flags
.bitfield
.cpui386
)
2198 as_error
= as_fatal
;
2201 (*as_error
) (_("32bit mode not supported on `%s'."),
2202 cpu_arch_name
? cpu_arch_name
: default_arch
);
2204 stackop_size
= '\0';
2208 set_code_flag (int value
)
2210 update_code_flag (value
, 0);
2214 set_16bit_gcc_code_flag (int new_code_flag
)
2216 flag_code
= (enum flag_code
) new_code_flag
;
2217 if (flag_code
!= CODE_16BIT
)
2219 cpu_arch_flags
.bitfield
.cpu64
= 0;
2220 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2221 stackop_size
= LONG_MNEM_SUFFIX
;
2225 set_intel_syntax (int syntax_flag
)
2227 /* Find out if register prefixing is specified. */
2228 int ask_naked_reg
= 0;
2231 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2233 char *string
= input_line_pointer
;
2234 int e
= get_symbol_end ();
2236 if (strcmp (string
, "prefix") == 0)
2238 else if (strcmp (string
, "noprefix") == 0)
2241 as_bad (_("bad argument to syntax directive."));
2242 *input_line_pointer
= e
;
2244 demand_empty_rest_of_line ();
2246 intel_syntax
= syntax_flag
;
2248 if (ask_naked_reg
== 0)
2249 allow_naked_reg
= (intel_syntax
2250 && (bfd_get_symbol_leading_char (stdoutput
) != '\0'));
2252 allow_naked_reg
= (ask_naked_reg
< 0);
2254 expr_set_rank (O_full_ptr
, syntax_flag
? 10 : 0);
2256 identifier_chars
['%'] = intel_syntax
&& allow_naked_reg
? '%' : 0;
2257 identifier_chars
['$'] = intel_syntax
? '$' : 0;
2258 register_prefix
= allow_naked_reg
? "" : "%";
2262 set_intel_mnemonic (int mnemonic_flag
)
2264 intel_mnemonic
= mnemonic_flag
;
2268 set_allow_index_reg (int flag
)
2270 allow_index_reg
= flag
;
2274 set_check (int what
)
2276 enum check_kind
*kind
;
2281 kind
= &operand_check
;
2292 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2294 char *string
= input_line_pointer
;
2295 int e
= get_symbol_end ();
2297 if (strcmp (string
, "none") == 0)
2299 else if (strcmp (string
, "warning") == 0)
2300 *kind
= check_warning
;
2301 else if (strcmp (string
, "error") == 0)
2302 *kind
= check_error
;
2304 as_bad (_("bad argument to %s_check directive."), str
);
2305 *input_line_pointer
= e
;
2308 as_bad (_("missing argument for %s_check directive"), str
);
2310 demand_empty_rest_of_line ();
2314 check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED
,
2315 i386_cpu_flags new_flag ATTRIBUTE_UNUSED
)
2317 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2318 static const char *arch
;
2320 /* Intel LIOM is only supported on ELF. */
2326 /* Use cpu_arch_name if it is set in md_parse_option. Otherwise
2327 use default_arch. */
2328 arch
= cpu_arch_name
;
2330 arch
= default_arch
;
2333 /* If we are targeting Intel L1OM, we must enable it. */
2334 if (get_elf_backend_data (stdoutput
)->elf_machine_code
!= EM_L1OM
2335 || new_flag
.bitfield
.cpul1om
)
2338 /* If we are targeting Intel K1OM, we must enable it. */
2339 if (get_elf_backend_data (stdoutput
)->elf_machine_code
!= EM_K1OM
2340 || new_flag
.bitfield
.cpuk1om
)
2343 as_bad (_("`%s' is not supported on `%s'"), name
, arch
);
2348 set_cpu_arch (int dummy ATTRIBUTE_UNUSED
)
2352 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2354 char *string
= input_line_pointer
;
2355 int e
= get_symbol_end ();
2357 i386_cpu_flags flags
;
2359 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
2361 if (strcmp (string
, cpu_arch
[j
].name
) == 0)
2363 check_cpu_arch_compatible (string
, cpu_arch
[j
].flags
);
2367 cpu_arch_name
= cpu_arch
[j
].name
;
2368 cpu_sub_arch_name
= NULL
;
2369 cpu_arch_flags
= cpu_arch
[j
].flags
;
2370 if (flag_code
== CODE_64BIT
)
2372 cpu_arch_flags
.bitfield
.cpu64
= 1;
2373 cpu_arch_flags
.bitfield
.cpuno64
= 0;
2377 cpu_arch_flags
.bitfield
.cpu64
= 0;
2378 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2380 cpu_arch_isa
= cpu_arch
[j
].type
;
2381 cpu_arch_isa_flags
= cpu_arch
[j
].flags
;
2382 if (!cpu_arch_tune_set
)
2384 cpu_arch_tune
= cpu_arch_isa
;
2385 cpu_arch_tune_flags
= cpu_arch_isa_flags
;
2390 if (!cpu_arch
[j
].negated
)
2391 flags
= cpu_flags_or (cpu_arch_flags
,
2394 flags
= cpu_flags_and_not (cpu_arch_flags
,
2396 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
2398 if (cpu_sub_arch_name
)
2400 char *name
= cpu_sub_arch_name
;
2401 cpu_sub_arch_name
= concat (name
,
2403 (const char *) NULL
);
2407 cpu_sub_arch_name
= xstrdup (cpu_arch
[j
].name
);
2408 cpu_arch_flags
= flags
;
2409 cpu_arch_isa_flags
= flags
;
2411 *input_line_pointer
= e
;
2412 demand_empty_rest_of_line ();
2416 if (j
>= ARRAY_SIZE (cpu_arch
))
2417 as_bad (_("no such architecture: `%s'"), string
);
2419 *input_line_pointer
= e
;
2422 as_bad (_("missing cpu architecture"));
2424 no_cond_jump_promotion
= 0;
2425 if (*input_line_pointer
== ','
2426 && !is_end_of_line
[(unsigned char) input_line_pointer
[1]])
2428 char *string
= ++input_line_pointer
;
2429 int e
= get_symbol_end ();
2431 if (strcmp (string
, "nojumps") == 0)
2432 no_cond_jump_promotion
= 1;
2433 else if (strcmp (string
, "jumps") == 0)
2436 as_bad (_("no such architecture modifier: `%s'"), string
);
2438 *input_line_pointer
= e
;
2441 demand_empty_rest_of_line ();
2444 enum bfd_architecture
2447 if (cpu_arch_isa
== PROCESSOR_L1OM
)
2449 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2450 || flag_code
!= CODE_64BIT
)
2451 as_fatal (_("Intel L1OM is 64bit ELF only"));
2452 return bfd_arch_l1om
;
2454 else if (cpu_arch_isa
== PROCESSOR_K1OM
)
2456 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2457 || flag_code
!= CODE_64BIT
)
2458 as_fatal (_("Intel K1OM is 64bit ELF only"));
2459 return bfd_arch_k1om
;
2462 return bfd_arch_i386
;
2468 if (!strncmp (default_arch
, "x86_64", 6))
2470 if (cpu_arch_isa
== PROCESSOR_L1OM
)
2472 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2473 || default_arch
[6] != '\0')
2474 as_fatal (_("Intel L1OM is 64bit ELF only"));
2475 return bfd_mach_l1om
;
2477 else if (cpu_arch_isa
== PROCESSOR_K1OM
)
2479 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2480 || default_arch
[6] != '\0')
2481 as_fatal (_("Intel K1OM is 64bit ELF only"));
2482 return bfd_mach_k1om
;
2484 else if (default_arch
[6] == '\0')
2485 return bfd_mach_x86_64
;
2487 return bfd_mach_x64_32
;
2489 else if (!strcmp (default_arch
, "i386"))
2490 return bfd_mach_i386_i386
;
2492 as_fatal (_("unknown architecture"));
2498 const char *hash_err
;
2500 /* Initialize op_hash hash table. */
2501 op_hash
= hash_new ();
2504 const insn_template
*optab
;
2505 templates
*core_optab
;
2507 /* Setup for loop. */
2509 core_optab
= (templates
*) xmalloc (sizeof (templates
));
2510 core_optab
->start
= optab
;
2515 if (optab
->name
== NULL
2516 || strcmp (optab
->name
, (optab
- 1)->name
) != 0)
2518 /* different name --> ship out current template list;
2519 add to hash table; & begin anew. */
2520 core_optab
->end
= optab
;
2521 hash_err
= hash_insert (op_hash
,
2523 (void *) core_optab
);
2526 as_fatal (_("can't hash %s: %s"),
2530 if (optab
->name
== NULL
)
2532 core_optab
= (templates
*) xmalloc (sizeof (templates
));
2533 core_optab
->start
= optab
;
2538 /* Initialize reg_hash hash table. */
2539 reg_hash
= hash_new ();
2541 const reg_entry
*regtab
;
2542 unsigned int regtab_size
= i386_regtab_size
;
2544 for (regtab
= i386_regtab
; regtab_size
--; regtab
++)
2546 hash_err
= hash_insert (reg_hash
, regtab
->reg_name
, (void *) regtab
);
2548 as_fatal (_("can't hash %s: %s"),
2554 /* Fill in lexical tables: mnemonic_chars, operand_chars. */
2559 for (c
= 0; c
< 256; c
++)
2564 mnemonic_chars
[c
] = c
;
2565 register_chars
[c
] = c
;
2566 operand_chars
[c
] = c
;
2568 else if (ISLOWER (c
))
2570 mnemonic_chars
[c
] = c
;
2571 register_chars
[c
] = c
;
2572 operand_chars
[c
] = c
;
2574 else if (ISUPPER (c
))
2576 mnemonic_chars
[c
] = TOLOWER (c
);
2577 register_chars
[c
] = mnemonic_chars
[c
];
2578 operand_chars
[c
] = c
;
2580 else if (c
== '{' || c
== '}')
2581 operand_chars
[c
] = c
;
2583 if (ISALPHA (c
) || ISDIGIT (c
))
2584 identifier_chars
[c
] = c
;
2587 identifier_chars
[c
] = c
;
2588 operand_chars
[c
] = c
;
2593 identifier_chars
['@'] = '@';
2596 identifier_chars
['?'] = '?';
2597 operand_chars
['?'] = '?';
2599 digit_chars
['-'] = '-';
2600 mnemonic_chars
['_'] = '_';
2601 mnemonic_chars
['-'] = '-';
2602 mnemonic_chars
['.'] = '.';
2603 identifier_chars
['_'] = '_';
2604 identifier_chars
['.'] = '.';
2606 for (p
= operand_special_chars
; *p
!= '\0'; p
++)
2607 operand_chars
[(unsigned char) *p
] = *p
;
2610 if (flag_code
== CODE_64BIT
)
2612 #if defined (OBJ_COFF) && defined (TE_PE)
2613 x86_dwarf2_return_column
= (OUTPUT_FLAVOR
== bfd_target_coff_flavour
2616 x86_dwarf2_return_column
= 16;
2618 x86_cie_data_alignment
= -8;
2622 x86_dwarf2_return_column
= 8;
2623 x86_cie_data_alignment
= -4;
2628 i386_print_statistics (FILE *file
)
2630 hash_print_statistics (file
, "i386 opcode", op_hash
);
2631 hash_print_statistics (file
, "i386 register", reg_hash
);
2636 /* Debugging routines for md_assemble. */
2637 static void pte (insn_template
*);
2638 static void pt (i386_operand_type
);
2639 static void pe (expressionS
*);
2640 static void ps (symbolS
*);
2643 pi (char *line
, i386_insn
*x
)
2647 fprintf (stdout
, "%s: template ", line
);
2649 fprintf (stdout
, " address: base %s index %s scale %x\n",
2650 x
->base_reg
? x
->base_reg
->reg_name
: "none",
2651 x
->index_reg
? x
->index_reg
->reg_name
: "none",
2652 x
->log2_scale_factor
);
2653 fprintf (stdout
, " modrm: mode %x reg %x reg/mem %x\n",
2654 x
->rm
.mode
, x
->rm
.reg
, x
->rm
.regmem
);
2655 fprintf (stdout
, " sib: base %x index %x scale %x\n",
2656 x
->sib
.base
, x
->sib
.index
, x
->sib
.scale
);
2657 fprintf (stdout
, " rex: 64bit %x extX %x extY %x extZ %x\n",
2658 (x
->rex
& REX_W
) != 0,
2659 (x
->rex
& REX_R
) != 0,
2660 (x
->rex
& REX_X
) != 0,
2661 (x
->rex
& REX_B
) != 0);
2662 for (j
= 0; j
< x
->operands
; j
++)
2664 fprintf (stdout
, " #%d: ", j
+ 1);
2666 fprintf (stdout
, "\n");
2667 if (x
->types
[j
].bitfield
.reg8
2668 || x
->types
[j
].bitfield
.reg16
2669 || x
->types
[j
].bitfield
.reg32
2670 || x
->types
[j
].bitfield
.reg64
2671 || x
->types
[j
].bitfield
.regmmx
2672 || x
->types
[j
].bitfield
.regxmm
2673 || x
->types
[j
].bitfield
.regymm
2674 || x
->types
[j
].bitfield
.regzmm
2675 || x
->types
[j
].bitfield
.sreg2
2676 || x
->types
[j
].bitfield
.sreg3
2677 || x
->types
[j
].bitfield
.control
2678 || x
->types
[j
].bitfield
.debug
2679 || x
->types
[j
].bitfield
.test
)
2680 fprintf (stdout
, "%s\n", x
->op
[j
].regs
->reg_name
);
2681 if (operand_type_check (x
->types
[j
], imm
))
2683 if (operand_type_check (x
->types
[j
], disp
))
2684 pe (x
->op
[j
].disps
);
2689 pte (insn_template
*t
)
2692 fprintf (stdout
, " %d operands ", t
->operands
);
2693 fprintf (stdout
, "opcode %x ", t
->base_opcode
);
2694 if (t
->extension_opcode
!= None
)
2695 fprintf (stdout
, "ext %x ", t
->extension_opcode
);
2696 if (t
->opcode_modifier
.d
)
2697 fprintf (stdout
, "D");
2698 if (t
->opcode_modifier
.w
)
2699 fprintf (stdout
, "W");
2700 fprintf (stdout
, "\n");
2701 for (j
= 0; j
< t
->operands
; j
++)
2703 fprintf (stdout
, " #%d type ", j
+ 1);
2704 pt (t
->operand_types
[j
]);
2705 fprintf (stdout
, "\n");
2712 fprintf (stdout
, " operation %d\n", e
->X_op
);
2713 fprintf (stdout
, " add_number %ld (%lx)\n",
2714 (long) e
->X_add_number
, (long) e
->X_add_number
);
2715 if (e
->X_add_symbol
)
2717 fprintf (stdout
, " add_symbol ");
2718 ps (e
->X_add_symbol
);
2719 fprintf (stdout
, "\n");
2723 fprintf (stdout
, " op_symbol ");
2724 ps (e
->X_op_symbol
);
2725 fprintf (stdout
, "\n");
2732 fprintf (stdout
, "%s type %s%s",
2734 S_IS_EXTERNAL (s
) ? "EXTERNAL " : "",
2735 segment_name (S_GET_SEGMENT (s
)));
2738 static struct type_name
2740 i386_operand_type mask
;
2743 const type_names
[] =
2745 { OPERAND_TYPE_REG8
, "r8" },
2746 { OPERAND_TYPE_REG16
, "r16" },
2747 { OPERAND_TYPE_REG32
, "r32" },
2748 { OPERAND_TYPE_REG64
, "r64" },
2749 { OPERAND_TYPE_IMM8
, "i8" },
2750 { OPERAND_TYPE_IMM8
, "i8s" },
2751 { OPERAND_TYPE_IMM16
, "i16" },
2752 { OPERAND_TYPE_IMM32
, "i32" },
2753 { OPERAND_TYPE_IMM32S
, "i32s" },
2754 { OPERAND_TYPE_IMM64
, "i64" },
2755 { OPERAND_TYPE_IMM1
, "i1" },
2756 { OPERAND_TYPE_BASEINDEX
, "BaseIndex" },
2757 { OPERAND_TYPE_DISP8
, "d8" },
2758 { OPERAND_TYPE_DISP16
, "d16" },
2759 { OPERAND_TYPE_DISP32
, "d32" },
2760 { OPERAND_TYPE_DISP32S
, "d32s" },
2761 { OPERAND_TYPE_DISP64
, "d64" },
2762 { OPERAND_TYPE_VEC_DISP8
, "Vector d8" },
2763 { OPERAND_TYPE_INOUTPORTREG
, "InOutPortReg" },
2764 { OPERAND_TYPE_SHIFTCOUNT
, "ShiftCount" },
2765 { OPERAND_TYPE_CONTROL
, "control reg" },
2766 { OPERAND_TYPE_TEST
, "test reg" },
2767 { OPERAND_TYPE_DEBUG
, "debug reg" },
2768 { OPERAND_TYPE_FLOATREG
, "FReg" },
2769 { OPERAND_TYPE_FLOATACC
, "FAcc" },
2770 { OPERAND_TYPE_SREG2
, "SReg2" },
2771 { OPERAND_TYPE_SREG3
, "SReg3" },
2772 { OPERAND_TYPE_ACC
, "Acc" },
2773 { OPERAND_TYPE_JUMPABSOLUTE
, "Jump Absolute" },
2774 { OPERAND_TYPE_REGMMX
, "rMMX" },
2775 { OPERAND_TYPE_REGXMM
, "rXMM" },
2776 { OPERAND_TYPE_REGYMM
, "rYMM" },
2777 { OPERAND_TYPE_REGZMM
, "rZMM" },
2778 { OPERAND_TYPE_REGMASK
, "Mask reg" },
2779 { OPERAND_TYPE_ESSEG
, "es" },
2783 pt (i386_operand_type t
)
2786 i386_operand_type a
;
2788 for (j
= 0; j
< ARRAY_SIZE (type_names
); j
++)
2790 a
= operand_type_and (t
, type_names
[j
].mask
);
2791 if (!operand_type_all_zero (&a
))
2792 fprintf (stdout
, "%s, ", type_names
[j
].name
);
2797 #endif /* DEBUG386 */
2799 static bfd_reloc_code_real_type
2800 reloc (unsigned int size
,
2803 bfd_reloc_code_real_type other
)
2805 if (other
!= NO_RELOC
)
2807 reloc_howto_type
*rel
;
2812 case BFD_RELOC_X86_64_GOT32
:
2813 return BFD_RELOC_X86_64_GOT64
;
2815 case BFD_RELOC_X86_64_PLTOFF64
:
2816 return BFD_RELOC_X86_64_PLTOFF64
;
2818 case BFD_RELOC_X86_64_GOTPC32
:
2819 other
= BFD_RELOC_X86_64_GOTPC64
;
2821 case BFD_RELOC_X86_64_GOTPCREL
:
2822 other
= BFD_RELOC_X86_64_GOTPCREL64
;
2824 case BFD_RELOC_X86_64_TPOFF32
:
2825 other
= BFD_RELOC_X86_64_TPOFF64
;
2827 case BFD_RELOC_X86_64_DTPOFF32
:
2828 other
= BFD_RELOC_X86_64_DTPOFF64
;
2834 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2835 if (other
== BFD_RELOC_SIZE32
)
2838 return BFD_RELOC_SIZE64
;
2840 as_bad (_("there are no pc-relative size relocations"));
2844 /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */
2845 if (size
== 4 && (flag_code
!= CODE_64BIT
|| disallow_64bit_reloc
))
2848 rel
= bfd_reloc_type_lookup (stdoutput
, other
);
2850 as_bad (_("unknown relocation (%u)"), other
);
2851 else if (size
!= bfd_get_reloc_size (rel
))
2852 as_bad (_("%u-byte relocation cannot be applied to %u-byte field"),
2853 bfd_get_reloc_size (rel
),
2855 else if (pcrel
&& !rel
->pc_relative
)
2856 as_bad (_("non-pc-relative relocation for pc-relative field"));
2857 else if ((rel
->complain_on_overflow
== complain_overflow_signed
2859 || (rel
->complain_on_overflow
== complain_overflow_unsigned
2861 as_bad (_("relocated field and relocation type differ in signedness"));
2870 as_bad (_("there are no unsigned pc-relative relocations"));
2873 case 1: return BFD_RELOC_8_PCREL
;
2874 case 2: return BFD_RELOC_16_PCREL
;
2875 case 4: return BFD_RELOC_32_PCREL
;
2876 case 8: return BFD_RELOC_64_PCREL
;
2878 as_bad (_("cannot do %u byte pc-relative relocation"), size
);
2885 case 4: return BFD_RELOC_X86_64_32S
;
2890 case 1: return BFD_RELOC_8
;
2891 case 2: return BFD_RELOC_16
;
2892 case 4: return BFD_RELOC_32
;
2893 case 8: return BFD_RELOC_64
;
2895 as_bad (_("cannot do %s %u byte relocation"),
2896 sign
> 0 ? "signed" : "unsigned", size
);
2902 /* Here we decide which fixups can be adjusted to make them relative to
2903 the beginning of the section instead of the symbol. Basically we need
2904 to make sure that the dynamic relocations are done correctly, so in
2905 some cases we force the original symbol to be used. */
2908 tc_i386_fix_adjustable (fixS
*fixP ATTRIBUTE_UNUSED
)
2910 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2914 /* Don't adjust pc-relative references to merge sections in 64-bit
2916 if (use_rela_relocations
2917 && (S_GET_SEGMENT (fixP
->fx_addsy
)->flags
& SEC_MERGE
) != 0
2921 /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations
2922 and changed later by validate_fix. */
2923 if (GOT_symbol
&& fixP
->fx_subsy
== GOT_symbol
2924 && fixP
->fx_r_type
== BFD_RELOC_32_PCREL
)
2927 /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol
2928 for size relocations. */
2929 if (fixP
->fx_r_type
== BFD_RELOC_SIZE32
2930 || fixP
->fx_r_type
== BFD_RELOC_SIZE64
2931 || fixP
->fx_r_type
== BFD_RELOC_386_GOTOFF
2932 || fixP
->fx_r_type
== BFD_RELOC_386_PLT32
2933 || fixP
->fx_r_type
== BFD_RELOC_386_GOT32
2934 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GD
2935 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LDM
2936 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LDO_32
2937 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_IE_32
2938 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_IE
2939 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GOTIE
2940 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LE_32
2941 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LE
2942 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GOTDESC
2943 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_DESC_CALL
2944 || fixP
->fx_r_type
== BFD_RELOC_X86_64_PLT32
2945 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOT32
2946 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTPCREL
2947 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSGD
2948 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSLD
2949 || fixP
->fx_r_type
== BFD_RELOC_X86_64_DTPOFF32
2950 || fixP
->fx_r_type
== BFD_RELOC_X86_64_DTPOFF64
2951 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTTPOFF
2952 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TPOFF32
2953 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TPOFF64
2954 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTOFF64
2955 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTPC32_TLSDESC
2956 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSDESC_CALL
2957 || fixP
->fx_r_type
== BFD_RELOC_VTABLE_INHERIT
2958 || fixP
->fx_r_type
== BFD_RELOC_VTABLE_ENTRY
)
2965 intel_float_operand (const char *mnemonic
)
2967 /* Note that the value returned is meaningful only for opcodes with (memory)
2968 operands, hence the code here is free to improperly handle opcodes that
2969 have no operands (for better performance and smaller code). */
2971 if (mnemonic
[0] != 'f')
2972 return 0; /* non-math */
2974 switch (mnemonic
[1])
2976 /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and
2977 the fs segment override prefix not currently handled because no
2978 call path can make opcodes without operands get here */
2980 return 2 /* integer op */;
2982 if (mnemonic
[2] == 'd' && (mnemonic
[3] == 'c' || mnemonic
[3] == 'e'))
2983 return 3; /* fldcw/fldenv */
2986 if (mnemonic
[2] != 'o' /* fnop */)
2987 return 3; /* non-waiting control op */
2990 if (mnemonic
[2] == 's')
2991 return 3; /* frstor/frstpm */
2994 if (mnemonic
[2] == 'a')
2995 return 3; /* fsave */
2996 if (mnemonic
[2] == 't')
2998 switch (mnemonic
[3])
3000 case 'c': /* fstcw */
3001 case 'd': /* fstdw */
3002 case 'e': /* fstenv */
3003 case 's': /* fsts[gw] */
3009 if (mnemonic
[2] == 'r' || mnemonic
[2] == 's')
3010 return 0; /* fxsave/fxrstor are not really math ops */
3017 /* Build the VEX prefix. */
3020 build_vex_prefix (const insn_template
*t
)
3022 unsigned int register_specifier
;
3023 unsigned int implied_prefix
;
3024 unsigned int vector_length
;
3026 /* Check register specifier. */
3027 if (i
.vex
.register_specifier
)
3029 register_specifier
=
3030 ~register_number (i
.vex
.register_specifier
) & 0xf;
3031 gas_assert ((i
.vex
.register_specifier
->reg_flags
& RegVRex
) == 0);
3034 register_specifier
= 0xf;
3036 /* Use 2-byte VEX prefix by swappping destination and source
3039 && i
.operands
== i
.reg_operands
3040 && i
.tm
.opcode_modifier
.vexopcode
== VEX0F
3041 && i
.tm
.opcode_modifier
.s
3044 unsigned int xchg
= i
.operands
- 1;
3045 union i386_op temp_op
;
3046 i386_operand_type temp_type
;
3048 temp_type
= i
.types
[xchg
];
3049 i
.types
[xchg
] = i
.types
[0];
3050 i
.types
[0] = temp_type
;
3051 temp_op
= i
.op
[xchg
];
3052 i
.op
[xchg
] = i
.op
[0];
3055 gas_assert (i
.rm
.mode
== 3);
3059 i
.rm
.regmem
= i
.rm
.reg
;
3062 /* Use the next insn. */
3066 if (i
.tm
.opcode_modifier
.vex
== VEXScalar
)
3067 vector_length
= avxscalar
;
3069 vector_length
= i
.tm
.opcode_modifier
.vex
== VEX256
? 1 : 0;
3071 switch ((i
.tm
.base_opcode
>> 8) & 0xff)
3076 case DATA_PREFIX_OPCODE
:
3079 case REPE_PREFIX_OPCODE
:
3082 case REPNE_PREFIX_OPCODE
:
3089 /* Use 2-byte VEX prefix if possible. */
3090 if (i
.tm
.opcode_modifier
.vexopcode
== VEX0F
3091 && i
.tm
.opcode_modifier
.vexw
!= VEXW1
3092 && (i
.rex
& (REX_W
| REX_X
| REX_B
)) == 0)
3094 /* 2-byte VEX prefix. */
3098 i
.vex
.bytes
[0] = 0xc5;
3100 /* Check the REX.R bit. */
3101 r
= (i
.rex
& REX_R
) ? 0 : 1;
3102 i
.vex
.bytes
[1] = (r
<< 7
3103 | register_specifier
<< 3
3104 | vector_length
<< 2
3109 /* 3-byte VEX prefix. */
3114 switch (i
.tm
.opcode_modifier
.vexopcode
)
3118 i
.vex
.bytes
[0] = 0xc4;
3122 i
.vex
.bytes
[0] = 0xc4;
3126 i
.vex
.bytes
[0] = 0xc4;
3130 i
.vex
.bytes
[0] = 0x8f;
3134 i
.vex
.bytes
[0] = 0x8f;
3138 i
.vex
.bytes
[0] = 0x8f;
3144 /* The high 3 bits of the second VEX byte are 1's compliment
3145 of RXB bits from REX. */
3146 i
.vex
.bytes
[1] = (~i
.rex
& 0x7) << 5 | m
;
3148 /* Check the REX.W bit. */
3149 w
= (i
.rex
& REX_W
) ? 1 : 0;
3150 if (i
.tm
.opcode_modifier
.vexw
)
3155 if (i
.tm
.opcode_modifier
.vexw
== VEXW1
)
3159 i
.vex
.bytes
[2] = (w
<< 7
3160 | register_specifier
<< 3
3161 | vector_length
<< 2
3166 /* Build the EVEX prefix. */
3169 build_evex_prefix (void)
3171 unsigned int register_specifier
;
3172 unsigned int implied_prefix
;
3174 rex_byte vrex_used
= 0;
3176 /* Check register specifier. */
3177 if (i
.vex
.register_specifier
)
3179 gas_assert ((i
.vrex
& REX_X
) == 0);
3181 register_specifier
= i
.vex
.register_specifier
->reg_num
;
3182 if ((i
.vex
.register_specifier
->reg_flags
& RegRex
))
3183 register_specifier
+= 8;
3184 /* The upper 16 registers are encoded in the fourth byte of the
3186 if (!(i
.vex
.register_specifier
->reg_flags
& RegVRex
))
3187 i
.vex
.bytes
[3] = 0x8;
3188 register_specifier
= ~register_specifier
& 0xf;
3192 register_specifier
= 0xf;
3194 /* Encode upper 16 vector index register in the fourth byte of
3196 if (!(i
.vrex
& REX_X
))
3197 i
.vex
.bytes
[3] = 0x8;
3202 switch ((i
.tm
.base_opcode
>> 8) & 0xff)
3207 case DATA_PREFIX_OPCODE
:
3210 case REPE_PREFIX_OPCODE
:
3213 case REPNE_PREFIX_OPCODE
:
3220 /* 4 byte EVEX prefix. */
3222 i
.vex
.bytes
[0] = 0x62;
3225 switch (i
.tm
.opcode_modifier
.vexopcode
)
3241 /* The high 3 bits of the second EVEX byte are 1's compliment of RXB
3243 i
.vex
.bytes
[1] = (~i
.rex
& 0x7) << 5 | m
;
3245 /* The fifth bit of the second EVEX byte is 1's compliment of the
3246 REX_R bit in VREX. */
3247 if (!(i
.vrex
& REX_R
))
3248 i
.vex
.bytes
[1] |= 0x10;
3252 if ((i
.reg_operands
+ i
.imm_operands
) == i
.operands
)
3254 /* When all operands are registers, the REX_X bit in REX is not
3255 used. We reuse it to encode the upper 16 registers, which is
3256 indicated by the REX_B bit in VREX. The REX_X bit is encoded
3257 as 1's compliment. */
3258 if ((i
.vrex
& REX_B
))
3261 i
.vex
.bytes
[1] &= ~0x40;
3265 /* EVEX instructions shouldn't need the REX prefix. */
3266 i
.vrex
&= ~vrex_used
;
3267 gas_assert (i
.vrex
== 0);
3269 /* Check the REX.W bit. */
3270 w
= (i
.rex
& REX_W
) ? 1 : 0;
3271 if (i
.tm
.opcode_modifier
.vexw
)
3273 if (i
.tm
.opcode_modifier
.vexw
== VEXW1
)
3276 /* If w is not set it means we are dealing with WIG instruction. */
3279 if (evexwig
== evexw1
)
3283 /* Encode the U bit. */
3284 implied_prefix
|= 0x4;
3286 /* The third byte of the EVEX prefix. */
3287 i
.vex
.bytes
[2] = (w
<< 7 | register_specifier
<< 3 | implied_prefix
);
3289 /* The fourth byte of the EVEX prefix. */
3290 /* The zeroing-masking bit. */
3291 if (i
.mask
&& i
.mask
->zeroing
)
3292 i
.vex
.bytes
[3] |= 0x80;
3294 /* Don't always set the broadcast bit if there is no RC. */
3297 /* Encode the vector length. */
3298 unsigned int vec_length
;
3300 switch (i
.tm
.opcode_modifier
.evex
)
3302 case EVEXLIG
: /* LL' is ignored */
3303 vec_length
= evexlig
<< 5;
3306 vec_length
= 0 << 5;
3309 vec_length
= 1 << 5;
3312 vec_length
= 2 << 5;
3318 i
.vex
.bytes
[3] |= vec_length
;
3319 /* Encode the broadcast bit. */
3321 i
.vex
.bytes
[3] |= 0x10;
3325 if (i
.rounding
->type
!= saeonly
)
3326 i
.vex
.bytes
[3] |= 0x10 | (i
.rounding
->type
<< 5);
3328 i
.vex
.bytes
[3] |= 0x10;
3331 if (i
.mask
&& i
.mask
->mask
)
3332 i
.vex
.bytes
[3] |= i
.mask
->mask
->reg_num
;
3336 process_immext (void)
3340 if ((i
.tm
.cpu_flags
.bitfield
.cpusse3
|| i
.tm
.cpu_flags
.bitfield
.cpusvme
)
3343 /* MONITOR/MWAIT as well as SVME instructions have fixed operands
3344 with an opcode suffix which is coded in the same place as an
3345 8-bit immediate field would be.
3346 Here we check those operands and remove them afterwards. */
3349 for (x
= 0; x
< i
.operands
; x
++)
3350 if (register_number (i
.op
[x
].regs
) != x
)
3351 as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
3352 register_prefix
, i
.op
[x
].regs
->reg_name
, x
+ 1,
3358 /* These AMD 3DNow! and SSE2 instructions have an opcode suffix
3359 which is coded in the same place as an 8-bit immediate field
3360 would be. Here we fake an 8-bit immediate operand from the
3361 opcode suffix stored in tm.extension_opcode.
3363 AVX instructions also use this encoding, for some of
3364 3 argument instructions. */
3366 gas_assert (i
.imm_operands
<= 1
3368 || ((i
.tm
.opcode_modifier
.vex
3369 || i
.tm
.opcode_modifier
.evex
)
3370 && i
.operands
<= 4)));
3372 exp
= &im_expressions
[i
.imm_operands
++];
3373 i
.op
[i
.operands
].imms
= exp
;
3374 i
.types
[i
.operands
] = imm8
;
3376 exp
->X_op
= O_constant
;
3377 exp
->X_add_number
= i
.tm
.extension_opcode
;
3378 i
.tm
.extension_opcode
= None
;
3385 switch (i
.tm
.opcode_modifier
.hleprefixok
)
3390 as_bad (_("invalid instruction `%s' after `%s'"),
3391 i
.tm
.name
, i
.hle_prefix
);
3394 if (i
.prefix
[LOCK_PREFIX
])
3396 as_bad (_("missing `lock' with `%s'"), i
.hle_prefix
);
3400 case HLEPrefixRelease
:
3401 if (i
.prefix
[HLE_PREFIX
] != XRELEASE_PREFIX_OPCODE
)
3403 as_bad (_("instruction `%s' after `xacquire' not allowed"),
3407 if (i
.mem_operands
== 0
3408 || !operand_type_check (i
.types
[i
.operands
- 1], anymem
))
3410 as_bad (_("memory destination needed for instruction `%s'"
3411 " after `xrelease'"), i
.tm
.name
);
3418 /* This is the guts of the machine-dependent assembler. LINE points to a
3419 machine dependent instruction. This function is supposed to emit
3420 the frags/bytes it assembles to. */
3423 md_assemble (char *line
)
3426 char mnemonic
[MAX_MNEM_SIZE
];
3427 const insn_template
*t
;
3429 /* Initialize globals. */
3430 memset (&i
, '\0', sizeof (i
));
3431 for (j
= 0; j
< MAX_OPERANDS
; j
++)
3432 i
.reloc
[j
] = NO_RELOC
;
3433 memset (disp_expressions
, '\0', sizeof (disp_expressions
));
3434 memset (im_expressions
, '\0', sizeof (im_expressions
));
3435 save_stack_p
= save_stack
;
3437 /* First parse an instruction mnemonic & call i386_operand for the operands.
3438 We assume that the scrubber has arranged it so that line[0] is the valid
3439 start of a (possibly prefixed) mnemonic. */
3441 line
= parse_insn (line
, mnemonic
);
3445 line
= parse_operands (line
, mnemonic
);
3450 /* Now we've parsed the mnemonic into a set of templates, and have the
3451 operands at hand. */
3453 /* All intel opcodes have reversed operands except for "bound" and
3454 "enter". We also don't reverse intersegment "jmp" and "call"
3455 instructions with 2 immediate operands so that the immediate segment
3456 precedes the offset, as it does when in AT&T mode. */
3459 && (strcmp (mnemonic
, "bound") != 0)
3460 && (strcmp (mnemonic
, "invlpga") != 0)
3461 && !(operand_type_check (i
.types
[0], imm
)
3462 && operand_type_check (i
.types
[1], imm
)))
3465 /* The order of the immediates should be reversed
3466 for 2 immediates extrq and insertq instructions */
3467 if (i
.imm_operands
== 2
3468 && (strcmp (mnemonic
, "extrq") == 0
3469 || strcmp (mnemonic
, "insertq") == 0))
3470 swap_2_operands (0, 1);
3475 /* Don't optimize displacement for movabs since it only takes 64bit
3478 && i
.disp_encoding
!= disp_encoding_32bit
3479 && (flag_code
!= CODE_64BIT
3480 || strcmp (mnemonic
, "movabs") != 0))
3483 /* Next, we find a template that matches the given insn,
3484 making sure the overlap of the given operands types is consistent
3485 with the template operand types. */
3487 if (!(t
= match_template ()))
3490 if (sse_check
!= check_none
3491 && !i
.tm
.opcode_modifier
.noavx
3492 && (i
.tm
.cpu_flags
.bitfield
.cpusse
3493 || i
.tm
.cpu_flags
.bitfield
.cpusse2
3494 || i
.tm
.cpu_flags
.bitfield
.cpusse3
3495 || i
.tm
.cpu_flags
.bitfield
.cpussse3
3496 || i
.tm
.cpu_flags
.bitfield
.cpusse4_1
3497 || i
.tm
.cpu_flags
.bitfield
.cpusse4_2
))
3499 (sse_check
== check_warning
3501 : as_bad
) (_("SSE instruction `%s' is used"), i
.tm
.name
);
3504 /* Zap movzx and movsx suffix. The suffix has been set from
3505 "word ptr" or "byte ptr" on the source operand in Intel syntax
3506 or extracted from mnemonic in AT&T syntax. But we'll use
3507 the destination register to choose the suffix for encoding. */
3508 if ((i
.tm
.base_opcode
& ~9) == 0x0fb6)
3510 /* In Intel syntax, there must be a suffix. In AT&T syntax, if
3511 there is no suffix, the default will be byte extension. */
3512 if (i
.reg_operands
!= 2
3515 as_bad (_("ambiguous operand size for `%s'"), i
.tm
.name
);
3520 if (i
.tm
.opcode_modifier
.fwait
)
3521 if (!add_prefix (FWAIT_OPCODE
))
3524 /* Check if REP prefix is OK. */
3525 if (i
.rep_prefix
&& !i
.tm
.opcode_modifier
.repprefixok
)
3527 as_bad (_("invalid instruction `%s' after `%s'"),
3528 i
.tm
.name
, i
.rep_prefix
);
3532 /* Check for lock without a lockable instruction. Destination operand
3533 must be memory unless it is xchg (0x86). */
3534 if (i
.prefix
[LOCK_PREFIX
]
3535 && (!i
.tm
.opcode_modifier
.islockable
3536 || i
.mem_operands
== 0
3537 || (i
.tm
.base_opcode
!= 0x86
3538 && !operand_type_check (i
.types
[i
.operands
- 1], anymem
))))
3540 as_bad (_("expecting lockable instruction after `lock'"));
3544 /* Check if HLE prefix is OK. */
3545 if (i
.hle_prefix
&& !check_hle ())
3548 /* Check BND prefix. */
3549 if (i
.bnd_prefix
&& !i
.tm
.opcode_modifier
.bndprefixok
)
3550 as_bad (_("expecting valid branch instruction after `bnd'"));
3552 if (i
.tm
.cpu_flags
.bitfield
.cpumpx
3553 && flag_code
== CODE_64BIT
3554 && i
.prefix
[ADDR_PREFIX
])
3555 as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions."));
3557 /* Insert BND prefix. */
3559 && i
.tm
.opcode_modifier
.bndprefixok
3560 && !i
.prefix
[BND_PREFIX
])
3561 add_prefix (BND_PREFIX_OPCODE
);
3563 /* Check string instruction segment overrides. */
3564 if (i
.tm
.opcode_modifier
.isstring
&& i
.mem_operands
!= 0)
3566 if (!check_string ())
3568 i
.disp_operands
= 0;
3571 if (!process_suffix ())
3574 /* Update operand types. */
3575 for (j
= 0; j
< i
.operands
; j
++)
3576 i
.types
[j
] = operand_type_and (i
.types
[j
], i
.tm
.operand_types
[j
]);
3578 /* Make still unresolved immediate matches conform to size of immediate
3579 given in i.suffix. */
3580 if (!finalize_imm ())
3583 if (i
.types
[0].bitfield
.imm1
)
3584 i
.imm_operands
= 0; /* kludge for shift insns. */
3586 /* We only need to check those implicit registers for instructions
3587 with 3 operands or less. */
3588 if (i
.operands
<= 3)
3589 for (j
= 0; j
< i
.operands
; j
++)
3590 if (i
.types
[j
].bitfield
.inoutportreg
3591 || i
.types
[j
].bitfield
.shiftcount
3592 || i
.types
[j
].bitfield
.acc
3593 || i
.types
[j
].bitfield
.floatacc
)
3596 /* ImmExt should be processed after SSE2AVX. */
3597 if (!i
.tm
.opcode_modifier
.sse2avx
3598 && i
.tm
.opcode_modifier
.immext
)
3601 /* For insns with operands there are more diddles to do to the opcode. */
3604 if (!process_operands ())
3607 else if (!quiet_warnings
&& i
.tm
.opcode_modifier
.ugh
)
3609 /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */
3610 as_warn (_("translating to `%sp'"), i
.tm
.name
);
3613 if (i
.tm
.opcode_modifier
.vex
)
3614 build_vex_prefix (t
);
3616 if (i
.tm
.opcode_modifier
.evex
)
3617 build_evex_prefix ();
3619 /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4
3620 instructions may define INT_OPCODE as well, so avoid this corner
3621 case for those instructions that use MODRM. */
3622 if (i
.tm
.base_opcode
== INT_OPCODE
3623 && !i
.tm
.opcode_modifier
.modrm
3624 && i
.op
[0].imms
->X_add_number
== 3)
3626 i
.tm
.base_opcode
= INT3_OPCODE
;
3630 if ((i
.tm
.opcode_modifier
.jump
3631 || i
.tm
.opcode_modifier
.jumpbyte
3632 || i
.tm
.opcode_modifier
.jumpdword
)
3633 && i
.op
[0].disps
->X_op
== O_constant
)
3635 /* Convert "jmp constant" (and "call constant") to a jump (call) to
3636 the absolute address given by the constant. Since ix86 jumps and
3637 calls are pc relative, we need to generate a reloc. */
3638 i
.op
[0].disps
->X_add_symbol
= &abs_symbol
;
3639 i
.op
[0].disps
->X_op
= O_symbol
;
3642 if (i
.tm
.opcode_modifier
.rex64
)
3645 /* For 8 bit registers we need an empty rex prefix. Also if the
3646 instruction already has a prefix, we need to convert old
3647 registers to new ones. */
3649 if ((i
.types
[0].bitfield
.reg8
3650 && (i
.op
[0].regs
->reg_flags
& RegRex64
) != 0)
3651 || (i
.types
[1].bitfield
.reg8
3652 && (i
.op
[1].regs
->reg_flags
& RegRex64
) != 0)
3653 || ((i
.types
[0].bitfield
.reg8
3654 || i
.types
[1].bitfield
.reg8
)
3659 i
.rex
|= REX_OPCODE
;
3660 for (x
= 0; x
< 2; x
++)
3662 /* Look for 8 bit operand that uses old registers. */
3663 if (i
.types
[x
].bitfield
.reg8
3664 && (i
.op
[x
].regs
->reg_flags
& RegRex64
) == 0)
3666 /* In case it is "hi" register, give up. */
3667 if (i
.op
[x
].regs
->reg_num
> 3)
3668 as_bad (_("can't encode register '%s%s' in an "
3669 "instruction requiring REX prefix."),
3670 register_prefix
, i
.op
[x
].regs
->reg_name
);
3672 /* Otherwise it is equivalent to the extended register.
3673 Since the encoding doesn't change this is merely
3674 cosmetic cleanup for debug output. */
3676 i
.op
[x
].regs
= i
.op
[x
].regs
+ 8;
3682 add_prefix (REX_OPCODE
| i
.rex
);
3684 /* We are ready to output the insn. */
3689 parse_insn (char *line
, char *mnemonic
)
3692 char *token_start
= l
;
3695 const insn_template
*t
;
3701 while ((*mnem_p
= mnemonic_chars
[(unsigned char) *l
]) != 0)
3706 if (mnem_p
>= mnemonic
+ MAX_MNEM_SIZE
)
3708 as_bad (_("no such instruction: `%s'"), token_start
);
3713 if (!is_space_char (*l
)
3714 && *l
!= END_OF_INSN
3716 || (*l
!= PREFIX_SEPARATOR
3719 as_bad (_("invalid character %s in mnemonic"),
3720 output_invalid (*l
));
3723 if (token_start
== l
)
3725 if (!intel_syntax
&& *l
== PREFIX_SEPARATOR
)
3726 as_bad (_("expecting prefix; got nothing"));
3728 as_bad (_("expecting mnemonic; got nothing"));
3732 /* Look up instruction (or prefix) via hash table. */
3733 current_templates
= (const templates
*) hash_find (op_hash
, mnemonic
);
3735 if (*l
!= END_OF_INSN
3736 && (!is_space_char (*l
) || l
[1] != END_OF_INSN
)
3737 && current_templates
3738 && current_templates
->start
->opcode_modifier
.isprefix
)
3740 if (!cpu_flags_check_cpu64 (current_templates
->start
->cpu_flags
))
3742 as_bad ((flag_code
!= CODE_64BIT
3743 ? _("`%s' is only supported in 64-bit mode")
3744 : _("`%s' is not supported in 64-bit mode")),
3745 current_templates
->start
->name
);
3748 /* If we are in 16-bit mode, do not allow addr16 or data16.
3749 Similarly, in 32-bit mode, do not allow addr32 or data32. */
3750 if ((current_templates
->start
->opcode_modifier
.size16
3751 || current_templates
->start
->opcode_modifier
.size32
)
3752 && flag_code
!= CODE_64BIT
3753 && (current_templates
->start
->opcode_modifier
.size32
3754 ^ (flag_code
== CODE_16BIT
)))
3756 as_bad (_("redundant %s prefix"),
3757 current_templates
->start
->name
);
3760 /* Add prefix, checking for repeated prefixes. */
3761 switch (add_prefix (current_templates
->start
->base_opcode
))
3766 if (current_templates
->start
->cpu_flags
.bitfield
.cpuhle
)
3767 i
.hle_prefix
= current_templates
->start
->name
;
3768 else if (current_templates
->start
->cpu_flags
.bitfield
.cpumpx
)
3769 i
.bnd_prefix
= current_templates
->start
->name
;
3771 i
.rep_prefix
= current_templates
->start
->name
;
3776 /* Skip past PREFIX_SEPARATOR and reset token_start. */
3783 if (!current_templates
)
3785 /* Check if we should swap operand or force 32bit displacement in
3787 if (mnem_p
- 2 == dot_p
&& dot_p
[1] == 's')
3789 else if (mnem_p
- 3 == dot_p
3792 i
.disp_encoding
= disp_encoding_8bit
;
3793 else if (mnem_p
- 4 == dot_p
3797 i
.disp_encoding
= disp_encoding_32bit
;
3802 current_templates
= (const templates
*) hash_find (op_hash
, mnemonic
);
3805 if (!current_templates
)
3808 /* See if we can get a match by trimming off a suffix. */
3811 case WORD_MNEM_SUFFIX
:
3812 if (intel_syntax
&& (intel_float_operand (mnemonic
) & 2))
3813 i
.suffix
= SHORT_MNEM_SUFFIX
;
3815 case BYTE_MNEM_SUFFIX
:
3816 case QWORD_MNEM_SUFFIX
:
3817 i
.suffix
= mnem_p
[-1];
3819 current_templates
= (const templates
*) hash_find (op_hash
,
3822 case SHORT_MNEM_SUFFIX
:
3823 case LONG_MNEM_SUFFIX
:
3826 i
.suffix
= mnem_p
[-1];
3828 current_templates
= (const templates
*) hash_find (op_hash
,
3837 if (intel_float_operand (mnemonic
) == 1)
3838 i
.suffix
= SHORT_MNEM_SUFFIX
;
3840 i
.suffix
= LONG_MNEM_SUFFIX
;
3842 current_templates
= (const templates
*) hash_find (op_hash
,
3847 if (!current_templates
)
3849 as_bad (_("no such instruction: `%s'"), token_start
);
3854 if (current_templates
->start
->opcode_modifier
.jump
3855 || current_templates
->start
->opcode_modifier
.jumpbyte
)
3857 /* Check for a branch hint. We allow ",pt" and ",pn" for
3858 predict taken and predict not taken respectively.
3859 I'm not sure that branch hints actually do anything on loop
3860 and jcxz insns (JumpByte) for current Pentium4 chips. They
3861 may work in the future and it doesn't hurt to accept them
3863 if (l
[0] == ',' && l
[1] == 'p')
3867 if (!add_prefix (DS_PREFIX_OPCODE
))
3871 else if (l
[2] == 'n')
3873 if (!add_prefix (CS_PREFIX_OPCODE
))
3879 /* Any other comma loses. */
3882 as_bad (_("invalid character %s in mnemonic"),
3883 output_invalid (*l
));
3887 /* Check if instruction is supported on specified architecture. */
3889 for (t
= current_templates
->start
; t
< current_templates
->end
; ++t
)
3891 supported
|= cpu_flags_match (t
);
3892 if (supported
== CPU_FLAGS_PERFECT_MATCH
)
3896 if (!(supported
& CPU_FLAGS_64BIT_MATCH
))
3898 as_bad (flag_code
== CODE_64BIT
3899 ? _("`%s' is not supported in 64-bit mode")
3900 : _("`%s' is only supported in 64-bit mode"),
3901 current_templates
->start
->name
);
3904 if (supported
!= CPU_FLAGS_PERFECT_MATCH
)
3906 as_bad (_("`%s' is not supported on `%s%s'"),
3907 current_templates
->start
->name
,
3908 cpu_arch_name
? cpu_arch_name
: default_arch
,
3909 cpu_sub_arch_name
? cpu_sub_arch_name
: "");
3914 if (!cpu_arch_flags
.bitfield
.cpui386
3915 && (flag_code
!= CODE_16BIT
))
3917 as_warn (_("use .code16 to ensure correct addressing mode"));
3924 parse_operands (char *l
, const char *mnemonic
)
3928 /* 1 if operand is pending after ','. */
3929 unsigned int expecting_operand
= 0;
3931 /* Non-zero if operand parens not balanced. */
3932 unsigned int paren_not_balanced
;
3934 while (*l
!= END_OF_INSN
)
3936 /* Skip optional white space before operand. */
3937 if (is_space_char (*l
))
3939 if (!is_operand_char (*l
) && *l
!= END_OF_INSN
)
3941 as_bad (_("invalid character %s before operand %d"),
3942 output_invalid (*l
),
3946 token_start
= l
; /* after white space */
3947 paren_not_balanced
= 0;
3948 while (paren_not_balanced
|| *l
!= ',')
3950 if (*l
== END_OF_INSN
)
3952 if (paren_not_balanced
)
3955 as_bad (_("unbalanced parenthesis in operand %d."),
3958 as_bad (_("unbalanced brackets in operand %d."),
3963 break; /* we are done */
3965 else if (!is_operand_char (*l
) && !is_space_char (*l
))
3967 as_bad (_("invalid character %s in operand %d"),
3968 output_invalid (*l
),
3975 ++paren_not_balanced
;
3977 --paren_not_balanced
;
3982 ++paren_not_balanced
;
3984 --paren_not_balanced
;
3988 if (l
!= token_start
)
3989 { /* Yes, we've read in another operand. */
3990 unsigned int operand_ok
;
3991 this_operand
= i
.operands
++;
3992 i
.types
[this_operand
].bitfield
.unspecified
= 1;
3993 if (i
.operands
> MAX_OPERANDS
)
3995 as_bad (_("spurious operands; (%d operands/instruction max)"),
3999 /* Now parse operand adding info to 'i' as we go along. */
4000 END_STRING_AND_SAVE (l
);
4004 i386_intel_operand (token_start
,
4005 intel_float_operand (mnemonic
));
4007 operand_ok
= i386_att_operand (token_start
);
4009 RESTORE_END_STRING (l
);
4015 if (expecting_operand
)
4017 expecting_operand_after_comma
:
4018 as_bad (_("expecting operand after ','; got nothing"));
4023 as_bad (_("expecting operand before ','; got nothing"));
4028 /* Now *l must be either ',' or END_OF_INSN. */
4031 if (*++l
== END_OF_INSN
)
4033 /* Just skip it, if it's \n complain. */
4034 goto expecting_operand_after_comma
;
4036 expecting_operand
= 1;
4043 swap_2_operands (int xchg1
, int xchg2
)
4045 union i386_op temp_op
;
4046 i386_operand_type temp_type
;
4047 enum bfd_reloc_code_real temp_reloc
;
4049 temp_type
= i
.types
[xchg2
];
4050 i
.types
[xchg2
] = i
.types
[xchg1
];
4051 i
.types
[xchg1
] = temp_type
;
4052 temp_op
= i
.op
[xchg2
];
4053 i
.op
[xchg2
] = i
.op
[xchg1
];
4054 i
.op
[xchg1
] = temp_op
;
4055 temp_reloc
= i
.reloc
[xchg2
];
4056 i
.reloc
[xchg2
] = i
.reloc
[xchg1
];
4057 i
.reloc
[xchg1
] = temp_reloc
;
4061 if (i
.mask
->operand
== xchg1
)
4062 i
.mask
->operand
= xchg2
;
4063 else if (i
.mask
->operand
== xchg2
)
4064 i
.mask
->operand
= xchg1
;
4068 if (i
.broadcast
->operand
== xchg1
)
4069 i
.broadcast
->operand
= xchg2
;
4070 else if (i
.broadcast
->operand
== xchg2
)
4071 i
.broadcast
->operand
= xchg1
;
4075 if (i
.rounding
->operand
== xchg1
)
4076 i
.rounding
->operand
= xchg2
;
4077 else if (i
.rounding
->operand
== xchg2
)
4078 i
.rounding
->operand
= xchg1
;
4083 swap_operands (void)
4089 swap_2_operands (1, i
.operands
- 2);
4092 swap_2_operands (0, i
.operands
- 1);
4098 if (i
.mem_operands
== 2)
4100 const seg_entry
*temp_seg
;
4101 temp_seg
= i
.seg
[0];
4102 i
.seg
[0] = i
.seg
[1];
4103 i
.seg
[1] = temp_seg
;
4107 /* Try to ensure constant immediates are represented in the smallest
4112 char guess_suffix
= 0;
4116 guess_suffix
= i
.suffix
;
4117 else if (i
.reg_operands
)
4119 /* Figure out a suffix from the last register operand specified.
4120 We can't do this properly yet, ie. excluding InOutPortReg,
4121 but the following works for instructions with immediates.
4122 In any case, we can't set i.suffix yet. */
4123 for (op
= i
.operands
; --op
>= 0;)
4124 if (i
.types
[op
].bitfield
.reg8
)
4126 guess_suffix
= BYTE_MNEM_SUFFIX
;
4129 else if (i
.types
[op
].bitfield
.reg16
)
4131 guess_suffix
= WORD_MNEM_SUFFIX
;
4134 else if (i
.types
[op
].bitfield
.reg32
)
4136 guess_suffix
= LONG_MNEM_SUFFIX
;
4139 else if (i
.types
[op
].bitfield
.reg64
)
4141 guess_suffix
= QWORD_MNEM_SUFFIX
;
4145 else if ((flag_code
== CODE_16BIT
) ^ (i
.prefix
[DATA_PREFIX
] != 0))
4146 guess_suffix
= WORD_MNEM_SUFFIX
;
4148 for (op
= i
.operands
; --op
>= 0;)
4149 if (operand_type_check (i
.types
[op
], imm
))
4151 switch (i
.op
[op
].imms
->X_op
)
4154 /* If a suffix is given, this operand may be shortened. */
4155 switch (guess_suffix
)
4157 case LONG_MNEM_SUFFIX
:
4158 i
.types
[op
].bitfield
.imm32
= 1;
4159 i
.types
[op
].bitfield
.imm64
= 1;
4161 case WORD_MNEM_SUFFIX
:
4162 i
.types
[op
].bitfield
.imm16
= 1;
4163 i
.types
[op
].bitfield
.imm32
= 1;
4164 i
.types
[op
].bitfield
.imm32s
= 1;
4165 i
.types
[op
].bitfield
.imm64
= 1;
4167 case BYTE_MNEM_SUFFIX
:
4168 i
.types
[op
].bitfield
.imm8
= 1;
4169 i
.types
[op
].bitfield
.imm8s
= 1;
4170 i
.types
[op
].bitfield
.imm16
= 1;
4171 i
.types
[op
].bitfield
.imm32
= 1;
4172 i
.types
[op
].bitfield
.imm32s
= 1;
4173 i
.types
[op
].bitfield
.imm64
= 1;
4177 /* If this operand is at most 16 bits, convert it
4178 to a signed 16 bit number before trying to see
4179 whether it will fit in an even smaller size.
4180 This allows a 16-bit operand such as $0xffe0 to
4181 be recognised as within Imm8S range. */
4182 if ((i
.types
[op
].bitfield
.imm16
)
4183 && (i
.op
[op
].imms
->X_add_number
& ~(offsetT
) 0xffff) == 0)
4185 i
.op
[op
].imms
->X_add_number
=
4186 (((i
.op
[op
].imms
->X_add_number
& 0xffff) ^ 0x8000) - 0x8000);
4188 if ((i
.types
[op
].bitfield
.imm32
)
4189 && ((i
.op
[op
].imms
->X_add_number
& ~(((offsetT
) 2 << 31) - 1))
4192 i
.op
[op
].imms
->X_add_number
= ((i
.op
[op
].imms
->X_add_number
4193 ^ ((offsetT
) 1 << 31))
4194 - ((offsetT
) 1 << 31));
4197 = operand_type_or (i
.types
[op
],
4198 smallest_imm_type (i
.op
[op
].imms
->X_add_number
));
4200 /* We must avoid matching of Imm32 templates when 64bit
4201 only immediate is available. */
4202 if (guess_suffix
== QWORD_MNEM_SUFFIX
)
4203 i
.types
[op
].bitfield
.imm32
= 0;
4210 /* Symbols and expressions. */
4212 /* Convert symbolic operand to proper sizes for matching, but don't
4213 prevent matching a set of insns that only supports sizes other
4214 than those matching the insn suffix. */
4216 i386_operand_type mask
, allowed
;
4217 const insn_template
*t
;
4219 operand_type_set (&mask
, 0);
4220 operand_type_set (&allowed
, 0);
4222 for (t
= current_templates
->start
;
4223 t
< current_templates
->end
;
4225 allowed
= operand_type_or (allowed
,
4226 t
->operand_types
[op
]);
4227 switch (guess_suffix
)
4229 case QWORD_MNEM_SUFFIX
:
4230 mask
.bitfield
.imm64
= 1;
4231 mask
.bitfield
.imm32s
= 1;
4233 case LONG_MNEM_SUFFIX
:
4234 mask
.bitfield
.imm32
= 1;
4236 case WORD_MNEM_SUFFIX
:
4237 mask
.bitfield
.imm16
= 1;
4239 case BYTE_MNEM_SUFFIX
:
4240 mask
.bitfield
.imm8
= 1;
4245 allowed
= operand_type_and (mask
, allowed
);
4246 if (!operand_type_all_zero (&allowed
))
4247 i
.types
[op
] = operand_type_and (i
.types
[op
], mask
);
4254 /* Try to use the smallest displacement type too. */
4256 optimize_disp (void)
4260 for (op
= i
.operands
; --op
>= 0;)
4261 if (operand_type_check (i
.types
[op
], disp
))
4263 if (i
.op
[op
].disps
->X_op
== O_constant
)
4265 offsetT op_disp
= i
.op
[op
].disps
->X_add_number
;
4267 if (i
.types
[op
].bitfield
.disp16
4268 && (op_disp
& ~(offsetT
) 0xffff) == 0)
4270 /* If this operand is at most 16 bits, convert
4271 to a signed 16 bit number and don't use 64bit
4273 op_disp
= (((op_disp
& 0xffff) ^ 0x8000) - 0x8000);
4274 i
.types
[op
].bitfield
.disp64
= 0;
4276 if (i
.types
[op
].bitfield
.disp32
4277 && (op_disp
& ~(((offsetT
) 2 << 31) - 1)) == 0)
4279 /* If this operand is at most 32 bits, convert
4280 to a signed 32 bit number and don't use 64bit
4282 op_disp
&= (((offsetT
) 2 << 31) - 1);
4283 op_disp
= (op_disp
^ ((offsetT
) 1 << 31)) - ((addressT
) 1 << 31);
4284 i
.types
[op
].bitfield
.disp64
= 0;
4286 if (!op_disp
&& i
.types
[op
].bitfield
.baseindex
)
4288 i
.types
[op
].bitfield
.disp8
= 0;
4289 i
.types
[op
].bitfield
.disp16
= 0;
4290 i
.types
[op
].bitfield
.disp32
= 0;
4291 i
.types
[op
].bitfield
.disp32s
= 0;
4292 i
.types
[op
].bitfield
.disp64
= 0;
4296 else if (flag_code
== CODE_64BIT
)
4298 if (fits_in_signed_long (op_disp
))
4300 i
.types
[op
].bitfield
.disp64
= 0;
4301 i
.types
[op
].bitfield
.disp32s
= 1;
4303 if (i
.prefix
[ADDR_PREFIX
]
4304 && fits_in_unsigned_long (op_disp
))
4305 i
.types
[op
].bitfield
.disp32
= 1;
4307 if ((i
.types
[op
].bitfield
.disp32
4308 || i
.types
[op
].bitfield
.disp32s
4309 || i
.types
[op
].bitfield
.disp16
)
4310 && fits_in_signed_byte (op_disp
))
4311 i
.types
[op
].bitfield
.disp8
= 1;
4313 else if (i
.reloc
[op
] == BFD_RELOC_386_TLS_DESC_CALL
4314 || i
.reloc
[op
] == BFD_RELOC_X86_64_TLSDESC_CALL
)
4316 fix_new_exp (frag_now
, frag_more (0) - frag_now
->fr_literal
, 0,
4317 i
.op
[op
].disps
, 0, i
.reloc
[op
]);
4318 i
.types
[op
].bitfield
.disp8
= 0;
4319 i
.types
[op
].bitfield
.disp16
= 0;
4320 i
.types
[op
].bitfield
.disp32
= 0;
4321 i
.types
[op
].bitfield
.disp32s
= 0;
4322 i
.types
[op
].bitfield
.disp64
= 0;
4325 /* We only support 64bit displacement on constants. */
4326 i
.types
[op
].bitfield
.disp64
= 0;
4330 /* Check if operands are valid for the instruction. */
4333 check_VecOperands (const insn_template
*t
)
4337 /* Without VSIB byte, we can't have a vector register for index. */
4338 if (!t
->opcode_modifier
.vecsib
4340 && (i
.index_reg
->reg_type
.bitfield
.regxmm
4341 || i
.index_reg
->reg_type
.bitfield
.regymm
4342 || i
.index_reg
->reg_type
.bitfield
.regzmm
))
4344 i
.error
= unsupported_vector_index_register
;
4348 /* For VSIB byte, we need a vector register for index, and all vector
4349 registers must be distinct. */
4350 if (t
->opcode_modifier
.vecsib
)
4353 || !((t
->opcode_modifier
.vecsib
== VecSIB128
4354 && i
.index_reg
->reg_type
.bitfield
.regxmm
)
4355 || (t
->opcode_modifier
.vecsib
== VecSIB256
4356 && i
.index_reg
->reg_type
.bitfield
.regymm
)
4357 || (t
->opcode_modifier
.vecsib
== VecSIB512
4358 && i
.index_reg
->reg_type
.bitfield
.regzmm
)))
4360 i
.error
= invalid_vsib_address
;
4364 gas_assert (i
.reg_operands
== 2 || i
.mask
);
4365 if (i
.reg_operands
== 2 && !i
.mask
)
4367 gas_assert (i
.types
[0].bitfield
.regxmm
4368 || i
.types
[0].bitfield
.regymm
4369 || i
.types
[0].bitfield
.regzmm
);
4370 gas_assert (i
.types
[2].bitfield
.regxmm
4371 || i
.types
[2].bitfield
.regymm
4372 || i
.types
[2].bitfield
.regzmm
);
4373 if (operand_check
== check_none
)
4375 if (register_number (i
.op
[0].regs
)
4376 != register_number (i
.index_reg
)
4377 && register_number (i
.op
[2].regs
)
4378 != register_number (i
.index_reg
)
4379 && register_number (i
.op
[0].regs
)
4380 != register_number (i
.op
[2].regs
))
4382 if (operand_check
== check_error
)
4384 i
.error
= invalid_vector_register_set
;
4387 as_warn (_("mask, index, and destination registers should be distinct"));
4391 /* Check if broadcast is supported by the instruction and is applied
4392 to the memory operand. */
4395 int broadcasted_opnd_size
;
4397 /* Check if specified broadcast is supported in this instruction,
4398 and it's applied to memory operand of DWORD or QWORD type,
4399 depending on VecESize. */
4400 if (i
.broadcast
->type
!= t
->opcode_modifier
.broadcast
4401 || !i
.types
[i
.broadcast
->operand
].bitfield
.mem
4402 || (t
->opcode_modifier
.vecesize
== 0
4403 && !i
.types
[i
.broadcast
->operand
].bitfield
.dword
4404 && !i
.types
[i
.broadcast
->operand
].bitfield
.unspecified
)
4405 || (t
->opcode_modifier
.vecesize
== 1
4406 && !i
.types
[i
.broadcast
->operand
].bitfield
.qword
4407 && !i
.types
[i
.broadcast
->operand
].bitfield
.unspecified
))
4410 broadcasted_opnd_size
= t
->opcode_modifier
.vecesize
? 64 : 32;
4411 if (i
.broadcast
->type
== BROADCAST_1TO16
)
4412 broadcasted_opnd_size
<<= 4; /* Broadcast 1to16. */
4413 else if (i
.broadcast
->type
== BROADCAST_1TO8
)
4414 broadcasted_opnd_size
<<= 3; /* Broadcast 1to8. */
4418 if ((broadcasted_opnd_size
== 256
4419 && !t
->operand_types
[i
.broadcast
->operand
].bitfield
.ymmword
)
4420 || (broadcasted_opnd_size
== 512
4421 && !t
->operand_types
[i
.broadcast
->operand
].bitfield
.zmmword
))
4424 i
.error
= unsupported_broadcast
;
4428 /* If broadcast is supported in this instruction, we need to check if
4429 operand of one-element size isn't specified without broadcast. */
4430 else if (t
->opcode_modifier
.broadcast
&& i
.mem_operands
)
4432 /* Find memory operand. */
4433 for (op
= 0; op
< i
.operands
; op
++)
4434 if (operand_type_check (i
.types
[op
], anymem
))
4436 gas_assert (op
< i
.operands
);
4437 /* Check size of the memory operand. */
4438 if ((t
->opcode_modifier
.vecesize
== 0
4439 && i
.types
[op
].bitfield
.dword
)
4440 || (t
->opcode_modifier
.vecesize
== 1
4441 && i
.types
[op
].bitfield
.qword
))
4443 i
.error
= broadcast_needed
;
4448 /* Check if requested masking is supported. */
4450 && (!t
->opcode_modifier
.masking
4452 && t
->opcode_modifier
.masking
== MERGING_MASKING
)))
4454 i
.error
= unsupported_masking
;
4458 /* Check if masking is applied to dest operand. */
4459 if (i
.mask
&& (i
.mask
->operand
!= (int) (i
.operands
- 1)))
4461 i
.error
= mask_not_on_destination
;
4465 /* Check if default mask is allowed. */
4466 if (t
->opcode_modifier
.nodefmask
4467 && (!i
.mask
|| i
.mask
->mask
->reg_num
== 0))
4469 i
.error
= no_default_mask
;
4476 if ((i
.rounding
->type
!= saeonly
4477 && !t
->opcode_modifier
.staticrounding
)
4478 || (i
.rounding
->type
== saeonly
4479 && (t
->opcode_modifier
.staticrounding
4480 || !t
->opcode_modifier
.sae
)))
4482 i
.error
= unsupported_rc_sae
;
4485 /* If the instruction has several immediate operands and one of
4486 them is rounding, the rounding operand should be the last
4487 immediate operand. */
4488 if (i
.imm_operands
> 1
4489 && i
.rounding
->operand
!= (int) (i
.imm_operands
- 1))
4491 i
.error
= rc_sae_operand_not_last_imm
;
4496 /* Check vector Disp8 operand. */
4497 if (t
->opcode_modifier
.disp8memshift
)
4500 i
.memshift
= t
->opcode_modifier
.vecesize
? 3 : 2;
4502 i
.memshift
= t
->opcode_modifier
.disp8memshift
;
4504 for (op
= 0; op
< i
.operands
; op
++)
4505 if (operand_type_check (i
.types
[op
], disp
)
4506 && i
.op
[op
].disps
->X_op
== O_constant
)
4508 offsetT value
= i
.op
[op
].disps
->X_add_number
;
4509 int vec_disp8_ok
= fits_in_vec_disp8 (value
);
4510 if (t
->operand_types
[op
].bitfield
.vec_disp8
)
4513 i
.types
[op
].bitfield
.vec_disp8
= 1;
4516 /* Vector insn can only have Vec_Disp8/Disp32 in
4517 32/64bit modes, and Vec_Disp8/Disp16 in 16bit
4519 i
.types
[op
].bitfield
.disp8
= 0;
4520 if (flag_code
!= CODE_16BIT
)
4521 i
.types
[op
].bitfield
.disp16
= 0;
4524 else if (flag_code
!= CODE_16BIT
)
4526 /* One form of this instruction supports vector Disp8.
4527 Try vector Disp8 if we need to use Disp32. */
4528 if (vec_disp8_ok
&& !fits_in_signed_byte (value
))
4530 i
.error
= try_vector_disp8
;
4542 /* Check if operands are valid for the instruction. Update VEX
4546 VEX_check_operands (const insn_template
*t
)
4548 /* VREX is only valid with EVEX prefix. */
4549 if (i
.need_vrex
&& !t
->opcode_modifier
.evex
)
4551 i
.error
= invalid_register_operand
;
4555 if (!t
->opcode_modifier
.vex
)
4558 /* Only check VEX_Imm4, which must be the first operand. */
4559 if (t
->operand_types
[0].bitfield
.vec_imm4
)
4561 if (i
.op
[0].imms
->X_op
!= O_constant
4562 || !fits_in_imm4 (i
.op
[0].imms
->X_add_number
))
4568 /* Turn off Imm8 so that update_imm won't complain. */
4569 i
.types
[0] = vec_imm4
;
4575 static const insn_template
*
4576 match_template (void)
4578 /* Points to template once we've found it. */
4579 const insn_template
*t
;
4580 i386_operand_type overlap0
, overlap1
, overlap2
, overlap3
;
4581 i386_operand_type overlap4
;
4582 unsigned int found_reverse_match
;
4583 i386_opcode_modifier suffix_check
;
4584 i386_operand_type operand_types
[MAX_OPERANDS
];
4585 int addr_prefix_disp
;
4587 unsigned int found_cpu_match
;
4588 unsigned int check_register
;
4589 enum i386_error specific_error
= 0;
4591 #if MAX_OPERANDS != 5
4592 # error "MAX_OPERANDS must be 5."
4595 found_reverse_match
= 0;
4596 addr_prefix_disp
= -1;
4598 memset (&suffix_check
, 0, sizeof (suffix_check
));
4599 if (i
.suffix
== BYTE_MNEM_SUFFIX
)
4600 suffix_check
.no_bsuf
= 1;
4601 else if (i
.suffix
== WORD_MNEM_SUFFIX
)
4602 suffix_check
.no_wsuf
= 1;
4603 else if (i
.suffix
== SHORT_MNEM_SUFFIX
)
4604 suffix_check
.no_ssuf
= 1;
4605 else if (i
.suffix
== LONG_MNEM_SUFFIX
)
4606 suffix_check
.no_lsuf
= 1;
4607 else if (i
.suffix
== QWORD_MNEM_SUFFIX
)
4608 suffix_check
.no_qsuf
= 1;
4609 else if (i
.suffix
== LONG_DOUBLE_MNEM_SUFFIX
)
4610 suffix_check
.no_ldsuf
= 1;
4612 /* Must have right number of operands. */
4613 i
.error
= number_of_operands_mismatch
;
4615 for (t
= current_templates
->start
; t
< current_templates
->end
; t
++)
4617 addr_prefix_disp
= -1;
4619 if (i
.operands
!= t
->operands
)
4622 /* Check processor support. */
4623 i
.error
= unsupported
;
4624 found_cpu_match
= (cpu_flags_match (t
)
4625 == CPU_FLAGS_PERFECT_MATCH
);
4626 if (!found_cpu_match
)
4629 /* Check old gcc support. */
4630 i
.error
= old_gcc_only
;
4631 if (!old_gcc
&& t
->opcode_modifier
.oldgcc
)
4634 /* Check AT&T mnemonic. */
4635 i
.error
= unsupported_with_intel_mnemonic
;
4636 if (intel_mnemonic
&& t
->opcode_modifier
.attmnemonic
)
4639 /* Check AT&T/Intel syntax. */
4640 i
.error
= unsupported_syntax
;
4641 if ((intel_syntax
&& t
->opcode_modifier
.attsyntax
)
4642 || (!intel_syntax
&& t
->opcode_modifier
.intelsyntax
))
4645 /* Check the suffix, except for some instructions in intel mode. */
4646 i
.error
= invalid_instruction_suffix
;
4647 if ((!intel_syntax
|| !t
->opcode_modifier
.ignoresize
)
4648 && ((t
->opcode_modifier
.no_bsuf
&& suffix_check
.no_bsuf
)
4649 || (t
->opcode_modifier
.no_wsuf
&& suffix_check
.no_wsuf
)
4650 || (t
->opcode_modifier
.no_lsuf
&& suffix_check
.no_lsuf
)
4651 || (t
->opcode_modifier
.no_ssuf
&& suffix_check
.no_ssuf
)
4652 || (t
->opcode_modifier
.no_qsuf
&& suffix_check
.no_qsuf
)
4653 || (t
->opcode_modifier
.no_ldsuf
&& suffix_check
.no_ldsuf
)))
4656 if (!operand_size_match (t
))
4659 for (j
= 0; j
< MAX_OPERANDS
; j
++)
4660 operand_types
[j
] = t
->operand_types
[j
];
4662 /* In general, don't allow 64-bit operands in 32-bit mode. */
4663 if (i
.suffix
== QWORD_MNEM_SUFFIX
4664 && flag_code
!= CODE_64BIT
4666 ? (!t
->opcode_modifier
.ignoresize
4667 && !intel_float_operand (t
->name
))
4668 : intel_float_operand (t
->name
) != 2)
4669 && ((!operand_types
[0].bitfield
.regmmx
4670 && !operand_types
[0].bitfield
.regxmm
4671 && !operand_types
[0].bitfield
.regymm
4672 && !operand_types
[0].bitfield
.regzmm
)
4673 || (!operand_types
[t
->operands
> 1].bitfield
.regmmx
4674 && !!operand_types
[t
->operands
> 1].bitfield
.regxmm
4675 && !!operand_types
[t
->operands
> 1].bitfield
.regymm
4676 && !!operand_types
[t
->operands
> 1].bitfield
.regzmm
))
4677 && (t
->base_opcode
!= 0x0fc7
4678 || t
->extension_opcode
!= 1 /* cmpxchg8b */))
4681 /* In general, don't allow 32-bit operands on pre-386. */
4682 else if (i
.suffix
== LONG_MNEM_SUFFIX
4683 && !cpu_arch_flags
.bitfield
.cpui386
4685 ? (!t
->opcode_modifier
.ignoresize
4686 && !intel_float_operand (t
->name
))
4687 : intel_float_operand (t
->name
) != 2)
4688 && ((!operand_types
[0].bitfield
.regmmx
4689 && !operand_types
[0].bitfield
.regxmm
)
4690 || (!operand_types
[t
->operands
> 1].bitfield
.regmmx
4691 && !!operand_types
[t
->operands
> 1].bitfield
.regxmm
)))
4694 /* Do not verify operands when there are none. */
4698 /* We've found a match; break out of loop. */
4702 /* Address size prefix will turn Disp64/Disp32/Disp16 operand
4703 into Disp32/Disp16/Disp32 operand. */
4704 if (i
.prefix
[ADDR_PREFIX
] != 0)
4706 /* There should be only one Disp operand. */
4710 for (j
= 0; j
< MAX_OPERANDS
; j
++)
4712 if (operand_types
[j
].bitfield
.disp16
)
4714 addr_prefix_disp
= j
;
4715 operand_types
[j
].bitfield
.disp32
= 1;
4716 operand_types
[j
].bitfield
.disp16
= 0;
4722 for (j
= 0; j
< MAX_OPERANDS
; j
++)
4724 if (operand_types
[j
].bitfield
.disp32
)
4726 addr_prefix_disp
= j
;
4727 operand_types
[j
].bitfield
.disp32
= 0;
4728 operand_types
[j
].bitfield
.disp16
= 1;
4734 for (j
= 0; j
< MAX_OPERANDS
; j
++)
4736 if (operand_types
[j
].bitfield
.disp64
)
4738 addr_prefix_disp
= j
;
4739 operand_types
[j
].bitfield
.disp64
= 0;
4740 operand_types
[j
].bitfield
.disp32
= 1;
4748 /* We check register size if needed. */
4749 check_register
= t
->opcode_modifier
.checkregsize
;
4750 overlap0
= operand_type_and (i
.types
[0], operand_types
[0]);
4751 switch (t
->operands
)
4754 if (!operand_type_match (overlap0
, i
.types
[0]))
4758 /* xchg %eax, %eax is a special case. It is an aliase for nop
4759 only in 32bit mode and we can use opcode 0x90. In 64bit
4760 mode, we can't use 0x90 for xchg %eax, %eax since it should
4761 zero-extend %eax to %rax. */
4762 if (flag_code
== CODE_64BIT
4763 && t
->base_opcode
== 0x90
4764 && operand_type_equal (&i
.types
[0], &acc32
)
4765 && operand_type_equal (&i
.types
[1], &acc32
))
4769 /* If we swap operand in encoding, we either match
4770 the next one or reverse direction of operands. */
4771 if (t
->opcode_modifier
.s
)
4773 else if (t
->opcode_modifier
.d
)
4778 /* If we swap operand in encoding, we match the next one. */
4779 if (i
.swap_operand
&& t
->opcode_modifier
.s
)
4783 overlap1
= operand_type_and (i
.types
[1], operand_types
[1]);
4784 if (!operand_type_match (overlap0
, i
.types
[0])
4785 || !operand_type_match (overlap1
, i
.types
[1])
4787 && !operand_type_register_match (overlap0
, i
.types
[0],
4789 overlap1
, i
.types
[1],
4792 /* Check if other direction is valid ... */
4793 if (!t
->opcode_modifier
.d
&& !t
->opcode_modifier
.floatd
)
4797 /* Try reversing direction of operands. */
4798 overlap0
= operand_type_and (i
.types
[0], operand_types
[1]);
4799 overlap1
= operand_type_and (i
.types
[1], operand_types
[0]);
4800 if (!operand_type_match (overlap0
, i
.types
[0])
4801 || !operand_type_match (overlap1
, i
.types
[1])
4803 && !operand_type_register_match (overlap0
,
4810 /* Does not match either direction. */
4813 /* found_reverse_match holds which of D or FloatDR
4815 if (t
->opcode_modifier
.d
)
4816 found_reverse_match
= Opcode_D
;
4817 else if (t
->opcode_modifier
.floatd
)
4818 found_reverse_match
= Opcode_FloatD
;
4820 found_reverse_match
= 0;
4821 if (t
->opcode_modifier
.floatr
)
4822 found_reverse_match
|= Opcode_FloatR
;
4826 /* Found a forward 2 operand match here. */
4827 switch (t
->operands
)
4830 overlap4
= operand_type_and (i
.types
[4],
4833 overlap3
= operand_type_and (i
.types
[3],
4836 overlap2
= operand_type_and (i
.types
[2],
4841 switch (t
->operands
)
4844 if (!operand_type_match (overlap4
, i
.types
[4])
4845 || !operand_type_register_match (overlap3
,
4853 if (!operand_type_match (overlap3
, i
.types
[3])
4855 && !operand_type_register_match (overlap2
,
4863 /* Here we make use of the fact that there are no
4864 reverse match 3 operand instructions, and all 3
4865 operand instructions only need to be checked for
4866 register consistency between operands 2 and 3. */
4867 if (!operand_type_match (overlap2
, i
.types
[2])
4869 && !operand_type_register_match (overlap1
,
4879 /* Found either forward/reverse 2, 3 or 4 operand match here:
4880 slip through to break. */
4882 if (!found_cpu_match
)
4884 found_reverse_match
= 0;
4888 /* Check if vector and VEX operands are valid. */
4889 if (check_VecOperands (t
) || VEX_check_operands (t
))
4891 specific_error
= i
.error
;
4895 /* We've found a match; break out of loop. */
4899 if (t
== current_templates
->end
)
4901 /* We found no match. */
4902 const char *err_msg
;
4903 switch (specific_error
? specific_error
: i
.error
)
4907 case operand_size_mismatch
:
4908 err_msg
= _("operand size mismatch");
4910 case operand_type_mismatch
:
4911 err_msg
= _("operand type mismatch");
4913 case register_type_mismatch
:
4914 err_msg
= _("register type mismatch");
4916 case number_of_operands_mismatch
:
4917 err_msg
= _("number of operands mismatch");
4919 case invalid_instruction_suffix
:
4920 err_msg
= _("invalid instruction suffix");
4923 err_msg
= _("constant doesn't fit in 4 bits");
4926 err_msg
= _("only supported with old gcc");
4928 case unsupported_with_intel_mnemonic
:
4929 err_msg
= _("unsupported with Intel mnemonic");
4931 case unsupported_syntax
:
4932 err_msg
= _("unsupported syntax");
4935 as_bad (_("unsupported instruction `%s'"),
4936 current_templates
->start
->name
);
4938 case invalid_vsib_address
:
4939 err_msg
= _("invalid VSIB address");
4941 case invalid_vector_register_set
:
4942 err_msg
= _("mask, index, and destination registers must be distinct");
4944 case unsupported_vector_index_register
:
4945 err_msg
= _("unsupported vector index register");
4947 case unsupported_broadcast
:
4948 err_msg
= _("unsupported broadcast");
4950 case broadcast_not_on_src_operand
:
4951 err_msg
= _("broadcast not on source memory operand");
4953 case broadcast_needed
:
4954 err_msg
= _("broadcast is needed for operand of such type");
4956 case unsupported_masking
:
4957 err_msg
= _("unsupported masking");
4959 case mask_not_on_destination
:
4960 err_msg
= _("mask not on destination operand");
4962 case no_default_mask
:
4963 err_msg
= _("default mask isn't allowed");
4965 case unsupported_rc_sae
:
4966 err_msg
= _("unsupported static rounding/sae");
4968 case rc_sae_operand_not_last_imm
:
4970 err_msg
= _("RC/SAE operand must precede immediate operands");
4972 err_msg
= _("RC/SAE operand must follow immediate operands");
4974 case invalid_register_operand
:
4975 err_msg
= _("invalid register operand");
4978 as_bad (_("%s for `%s'"), err_msg
,
4979 current_templates
->start
->name
);
4983 if (!quiet_warnings
)
4986 && (i
.types
[0].bitfield
.jumpabsolute
4987 != operand_types
[0].bitfield
.jumpabsolute
))
4989 as_warn (_("indirect %s without `*'"), t
->name
);
4992 if (t
->opcode_modifier
.isprefix
4993 && t
->opcode_modifier
.ignoresize
)
4995 /* Warn them that a data or address size prefix doesn't
4996 affect assembly of the next line of code. */
4997 as_warn (_("stand-alone `%s' prefix"), t
->name
);
5001 /* Copy the template we found. */
5004 if (addr_prefix_disp
!= -1)
5005 i
.tm
.operand_types
[addr_prefix_disp
]
5006 = operand_types
[addr_prefix_disp
];
5008 if (found_reverse_match
)
5010 /* If we found a reverse match we must alter the opcode
5011 direction bit. found_reverse_match holds bits to change
5012 (different for int & float insns). */
5014 i
.tm
.base_opcode
^= found_reverse_match
;
5016 i
.tm
.operand_types
[0] = operand_types
[1];
5017 i
.tm
.operand_types
[1] = operand_types
[0];
5026 int mem_op
= operand_type_check (i
.types
[0], anymem
) ? 0 : 1;
5027 if (i
.tm
.operand_types
[mem_op
].bitfield
.esseg
)
5029 if (i
.seg
[0] != NULL
&& i
.seg
[0] != &es
)
5031 as_bad (_("`%s' operand %d must use `%ses' segment"),
5037 /* There's only ever one segment override allowed per instruction.
5038 This instruction possibly has a legal segment override on the
5039 second operand, so copy the segment to where non-string
5040 instructions store it, allowing common code. */
5041 i
.seg
[0] = i
.seg
[1];
5043 else if (i
.tm
.operand_types
[mem_op
+ 1].bitfield
.esseg
)
5045 if (i
.seg
[1] != NULL
&& i
.seg
[1] != &es
)
5047 as_bad (_("`%s' operand %d must use `%ses' segment"),
5058 process_suffix (void)
5060 /* If matched instruction specifies an explicit instruction mnemonic
5062 if (i
.tm
.opcode_modifier
.size16
)
5063 i
.suffix
= WORD_MNEM_SUFFIX
;
5064 else if (i
.tm
.opcode_modifier
.size32
)
5065 i
.suffix
= LONG_MNEM_SUFFIX
;
5066 else if (i
.tm
.opcode_modifier
.size64
)
5067 i
.suffix
= QWORD_MNEM_SUFFIX
;
5068 else if (i
.reg_operands
)
5070 /* If there's no instruction mnemonic suffix we try to invent one
5071 based on register operands. */
5074 /* We take i.suffix from the last register operand specified,
5075 Destination register type is more significant than source
5076 register type. crc32 in SSE4.2 prefers source register
5078 if (i
.tm
.base_opcode
== 0xf20f38f1)
5080 if (i
.types
[0].bitfield
.reg16
)
5081 i
.suffix
= WORD_MNEM_SUFFIX
;
5082 else if (i
.types
[0].bitfield
.reg32
)
5083 i
.suffix
= LONG_MNEM_SUFFIX
;
5084 else if (i
.types
[0].bitfield
.reg64
)
5085 i
.suffix
= QWORD_MNEM_SUFFIX
;
5087 else if (i
.tm
.base_opcode
== 0xf20f38f0)
5089 if (i
.types
[0].bitfield
.reg8
)
5090 i
.suffix
= BYTE_MNEM_SUFFIX
;
5097 if (i
.tm
.base_opcode
== 0xf20f38f1
5098 || i
.tm
.base_opcode
== 0xf20f38f0)
5100 /* We have to know the operand size for crc32. */
5101 as_bad (_("ambiguous memory operand size for `%s`"),
5106 for (op
= i
.operands
; --op
>= 0;)
5107 if (!i
.tm
.operand_types
[op
].bitfield
.inoutportreg
)
5109 if (i
.types
[op
].bitfield
.reg8
)
5111 i
.suffix
= BYTE_MNEM_SUFFIX
;
5114 else if (i
.types
[op
].bitfield
.reg16
)
5116 i
.suffix
= WORD_MNEM_SUFFIX
;
5119 else if (i
.types
[op
].bitfield
.reg32
)
5121 i
.suffix
= LONG_MNEM_SUFFIX
;
5124 else if (i
.types
[op
].bitfield
.reg64
)
5126 i
.suffix
= QWORD_MNEM_SUFFIX
;
5132 else if (i
.suffix
== BYTE_MNEM_SUFFIX
)
5135 && i
.tm
.opcode_modifier
.ignoresize
5136 && i
.tm
.opcode_modifier
.no_bsuf
)
5138 else if (!check_byte_reg ())
5141 else if (i
.suffix
== LONG_MNEM_SUFFIX
)
5144 && i
.tm
.opcode_modifier
.ignoresize
5145 && i
.tm
.opcode_modifier
.no_lsuf
)
5147 else if (!check_long_reg ())
5150 else if (i
.suffix
== QWORD_MNEM_SUFFIX
)
5153 && i
.tm
.opcode_modifier
.ignoresize
5154 && i
.tm
.opcode_modifier
.no_qsuf
)
5156 else if (!check_qword_reg ())
5159 else if (i
.suffix
== WORD_MNEM_SUFFIX
)
5162 && i
.tm
.opcode_modifier
.ignoresize
5163 && i
.tm
.opcode_modifier
.no_wsuf
)
5165 else if (!check_word_reg ())
5168 else if (i
.suffix
== XMMWORD_MNEM_SUFFIX
5169 || i
.suffix
== YMMWORD_MNEM_SUFFIX
5170 || i
.suffix
== ZMMWORD_MNEM_SUFFIX
)
5172 /* Skip if the instruction has x/y/z suffix. match_template
5173 should check if it is a valid suffix. */
5175 else if (intel_syntax
&& i
.tm
.opcode_modifier
.ignoresize
)
5176 /* Do nothing if the instruction is going to ignore the prefix. */
5181 else if (i
.tm
.opcode_modifier
.defaultsize
5183 /* exclude fldenv/frstor/fsave/fstenv */
5184 && i
.tm
.opcode_modifier
.no_ssuf
)
5186 i
.suffix
= stackop_size
;
5188 else if (intel_syntax
5190 && (i
.tm
.operand_types
[0].bitfield
.jumpabsolute
5191 || i
.tm
.opcode_modifier
.jumpbyte
5192 || i
.tm
.opcode_modifier
.jumpintersegment
5193 || (i
.tm
.base_opcode
== 0x0f01 /* [ls][gi]dt */
5194 && i
.tm
.extension_opcode
<= 3)))
5199 if (!i
.tm
.opcode_modifier
.no_qsuf
)
5201 i
.suffix
= QWORD_MNEM_SUFFIX
;
5205 if (!i
.tm
.opcode_modifier
.no_lsuf
)
5206 i
.suffix
= LONG_MNEM_SUFFIX
;
5209 if (!i
.tm
.opcode_modifier
.no_wsuf
)
5210 i
.suffix
= WORD_MNEM_SUFFIX
;
5219 if (i
.tm
.opcode_modifier
.w
)
5221 as_bad (_("no instruction mnemonic suffix given and "
5222 "no register operands; can't size instruction"));
5228 unsigned int suffixes
;
5230 suffixes
= !i
.tm
.opcode_modifier
.no_bsuf
;
5231 if (!i
.tm
.opcode_modifier
.no_wsuf
)
5233 if (!i
.tm
.opcode_modifier
.no_lsuf
)
5235 if (!i
.tm
.opcode_modifier
.no_ldsuf
)
5237 if (!i
.tm
.opcode_modifier
.no_ssuf
)
5239 if (!i
.tm
.opcode_modifier
.no_qsuf
)
5242 /* There are more than suffix matches. */
5243 if (i
.tm
.opcode_modifier
.w
5244 || ((suffixes
& (suffixes
- 1))
5245 && !i
.tm
.opcode_modifier
.defaultsize
5246 && !i
.tm
.opcode_modifier
.ignoresize
))
5248 as_bad (_("ambiguous operand size for `%s'"), i
.tm
.name
);
5254 /* Change the opcode based on the operand size given by i.suffix;
5255 We don't need to change things for byte insns. */
5258 && i
.suffix
!= BYTE_MNEM_SUFFIX
5259 && i
.suffix
!= XMMWORD_MNEM_SUFFIX
5260 && i
.suffix
!= YMMWORD_MNEM_SUFFIX
5261 && i
.suffix
!= ZMMWORD_MNEM_SUFFIX
)
5263 /* It's not a byte, select word/dword operation. */
5264 if (i
.tm
.opcode_modifier
.w
)
5266 if (i
.tm
.opcode_modifier
.shortform
)
5267 i
.tm
.base_opcode
|= 8;
5269 i
.tm
.base_opcode
|= 1;
5272 /* Now select between word & dword operations via the operand
5273 size prefix, except for instructions that will ignore this
5275 if (i
.tm
.opcode_modifier
.addrprefixop0
)
5277 /* The address size override prefix changes the size of the
5279 if ((flag_code
== CODE_32BIT
5280 && i
.op
->regs
[0].reg_type
.bitfield
.reg16
)
5281 || (flag_code
!= CODE_32BIT
5282 && i
.op
->regs
[0].reg_type
.bitfield
.reg32
))
5283 if (!add_prefix (ADDR_PREFIX_OPCODE
))
5286 else if (i
.suffix
!= QWORD_MNEM_SUFFIX
5287 && i
.suffix
!= LONG_DOUBLE_MNEM_SUFFIX
5288 && !i
.tm
.opcode_modifier
.ignoresize
5289 && !i
.tm
.opcode_modifier
.floatmf
5290 && ((i
.suffix
== LONG_MNEM_SUFFIX
) == (flag_code
== CODE_16BIT
)
5291 || (flag_code
== CODE_64BIT
5292 && i
.tm
.opcode_modifier
.jumpbyte
)))
5294 unsigned int prefix
= DATA_PREFIX_OPCODE
;
5296 if (i
.tm
.opcode_modifier
.jumpbyte
) /* jcxz, loop */
5297 prefix
= ADDR_PREFIX_OPCODE
;
5299 if (!add_prefix (prefix
))
5303 /* Set mode64 for an operand. */
5304 if (i
.suffix
== QWORD_MNEM_SUFFIX
5305 && flag_code
== CODE_64BIT
5306 && !i
.tm
.opcode_modifier
.norex64
)
5308 /* Special case for xchg %rax,%rax. It is NOP and doesn't
5309 need rex64. cmpxchg8b is also a special case. */
5310 if (! (i
.operands
== 2
5311 && i
.tm
.base_opcode
== 0x90
5312 && i
.tm
.extension_opcode
== None
5313 && operand_type_equal (&i
.types
[0], &acc64
)
5314 && operand_type_equal (&i
.types
[1], &acc64
))
5315 && ! (i
.operands
== 1
5316 && i
.tm
.base_opcode
== 0xfc7
5317 && i
.tm
.extension_opcode
== 1
5318 && !operand_type_check (i
.types
[0], reg
)
5319 && operand_type_check (i
.types
[0], anymem
)))
5323 /* Size floating point instruction. */
5324 if (i
.suffix
== LONG_MNEM_SUFFIX
)
5325 if (i
.tm
.opcode_modifier
.floatmf
)
5326 i
.tm
.base_opcode
^= 4;
5333 check_byte_reg (void)
5337 for (op
= i
.operands
; --op
>= 0;)
5339 /* If this is an eight bit register, it's OK. If it's the 16 or
5340 32 bit version of an eight bit register, we will just use the
5341 low portion, and that's OK too. */
5342 if (i
.types
[op
].bitfield
.reg8
)
5345 /* I/O port address operands are OK too. */
5346 if (i
.tm
.operand_types
[op
].bitfield
.inoutportreg
)
5349 /* crc32 doesn't generate this warning. */
5350 if (i
.tm
.base_opcode
== 0xf20f38f0)
5353 if ((i
.types
[op
].bitfield
.reg16
5354 || i
.types
[op
].bitfield
.reg32
5355 || i
.types
[op
].bitfield
.reg64
)
5356 && i
.op
[op
].regs
->reg_num
< 4
5357 /* Prohibit these changes in 64bit mode, since the lowering
5358 would be more complicated. */
5359 && flag_code
!= CODE_64BIT
)
5361 #if REGISTER_WARNINGS
5362 if (!quiet_warnings
)
5363 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
5365 (i
.op
[op
].regs
+ (i
.types
[op
].bitfield
.reg16
5366 ? REGNAM_AL
- REGNAM_AX
5367 : REGNAM_AL
- REGNAM_EAX
))->reg_name
,
5369 i
.op
[op
].regs
->reg_name
,
5374 /* Any other register is bad. */
5375 if (i
.types
[op
].bitfield
.reg16
5376 || i
.types
[op
].bitfield
.reg32
5377 || i
.types
[op
].bitfield
.reg64
5378 || i
.types
[op
].bitfield
.regmmx
5379 || i
.types
[op
].bitfield
.regxmm
5380 || i
.types
[op
].bitfield
.regymm
5381 || i
.types
[op
].bitfield
.regzmm
5382 || i
.types
[op
].bitfield
.sreg2
5383 || i
.types
[op
].bitfield
.sreg3
5384 || i
.types
[op
].bitfield
.control
5385 || i
.types
[op
].bitfield
.debug
5386 || i
.types
[op
].bitfield
.test
5387 || i
.types
[op
].bitfield
.floatreg
5388 || i
.types
[op
].bitfield
.floatacc
)
5390 as_bad (_("`%s%s' not allowed with `%s%c'"),
5392 i
.op
[op
].regs
->reg_name
,
5402 check_long_reg (void)
5406 for (op
= i
.operands
; --op
>= 0;)
5407 /* Reject eight bit registers, except where the template requires
5408 them. (eg. movzb) */
5409 if (i
.types
[op
].bitfield
.reg8
5410 && (i
.tm
.operand_types
[op
].bitfield
.reg16
5411 || i
.tm
.operand_types
[op
].bitfield
.reg32
5412 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5414 as_bad (_("`%s%s' not allowed with `%s%c'"),
5416 i
.op
[op
].regs
->reg_name
,
5421 /* Warn if the e prefix on a general reg is missing. */
5422 else if ((!quiet_warnings
|| flag_code
== CODE_64BIT
)
5423 && i
.types
[op
].bitfield
.reg16
5424 && (i
.tm
.operand_types
[op
].bitfield
.reg32
5425 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5427 /* Prohibit these changes in the 64bit mode, since the
5428 lowering is more complicated. */
5429 if (flag_code
== CODE_64BIT
)
5431 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
5432 register_prefix
, i
.op
[op
].regs
->reg_name
,
5436 #if REGISTER_WARNINGS
5438 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
5440 (i
.op
[op
].regs
+ REGNAM_EAX
- REGNAM_AX
)->reg_name
,
5442 i
.op
[op
].regs
->reg_name
,
5446 /* Warn if the r prefix on a general reg is missing. */
5447 else if (i
.types
[op
].bitfield
.reg64
5448 && (i
.tm
.operand_types
[op
].bitfield
.reg32
5449 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5452 && i
.tm
.opcode_modifier
.toqword
5453 && !i
.types
[0].bitfield
.regxmm
)
5455 /* Convert to QWORD. We want REX byte. */
5456 i
.suffix
= QWORD_MNEM_SUFFIX
;
5460 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
5461 register_prefix
, i
.op
[op
].regs
->reg_name
,
5470 check_qword_reg (void)
5474 for (op
= i
.operands
; --op
>= 0; )
5475 /* Reject eight bit registers, except where the template requires
5476 them. (eg. movzb) */
5477 if (i
.types
[op
].bitfield
.reg8
5478 && (i
.tm
.operand_types
[op
].bitfield
.reg16
5479 || i
.tm
.operand_types
[op
].bitfield
.reg32
5480 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5482 as_bad (_("`%s%s' not allowed with `%s%c'"),
5484 i
.op
[op
].regs
->reg_name
,
5489 /* Warn if the e prefix on a general reg is missing. */
5490 else if ((i
.types
[op
].bitfield
.reg16
5491 || i
.types
[op
].bitfield
.reg32
)
5492 && (i
.tm
.operand_types
[op
].bitfield
.reg32
5493 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5495 /* Prohibit these changes in the 64bit mode, since the
5496 lowering is more complicated. */
5498 && i
.tm
.opcode_modifier
.todword
5499 && !i
.types
[0].bitfield
.regxmm
)
5501 /* Convert to DWORD. We don't want REX byte. */
5502 i
.suffix
= LONG_MNEM_SUFFIX
;
5506 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
5507 register_prefix
, i
.op
[op
].regs
->reg_name
,
5516 check_word_reg (void)
5519 for (op
= i
.operands
; --op
>= 0;)
5520 /* Reject eight bit registers, except where the template requires
5521 them. (eg. movzb) */
5522 if (i
.types
[op
].bitfield
.reg8
5523 && (i
.tm
.operand_types
[op
].bitfield
.reg16
5524 || i
.tm
.operand_types
[op
].bitfield
.reg32
5525 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5527 as_bad (_("`%s%s' not allowed with `%s%c'"),
5529 i
.op
[op
].regs
->reg_name
,
5534 /* Warn if the e prefix on a general reg is present. */
5535 else if ((!quiet_warnings
|| flag_code
== CODE_64BIT
)
5536 && i
.types
[op
].bitfield
.reg32
5537 && (i
.tm
.operand_types
[op
].bitfield
.reg16
5538 || i
.tm
.operand_types
[op
].bitfield
.acc
))
5540 /* Prohibit these changes in the 64bit mode, since the
5541 lowering is more complicated. */
5542 if (flag_code
== CODE_64BIT
)
5544 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
5545 register_prefix
, i
.op
[op
].regs
->reg_name
,
5550 #if REGISTER_WARNINGS
5551 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
5553 (i
.op
[op
].regs
+ REGNAM_AX
- REGNAM_EAX
)->reg_name
,
5555 i
.op
[op
].regs
->reg_name
,
5563 update_imm (unsigned int j
)
5565 i386_operand_type overlap
= i
.types
[j
];
5566 if ((overlap
.bitfield
.imm8
5567 || overlap
.bitfield
.imm8s
5568 || overlap
.bitfield
.imm16
5569 || overlap
.bitfield
.imm32
5570 || overlap
.bitfield
.imm32s
5571 || overlap
.bitfield
.imm64
)
5572 && !operand_type_equal (&overlap
, &imm8
)
5573 && !operand_type_equal (&overlap
, &imm8s
)
5574 && !operand_type_equal (&overlap
, &imm16
)
5575 && !operand_type_equal (&overlap
, &imm32
)
5576 && !operand_type_equal (&overlap
, &imm32s
)
5577 && !operand_type_equal (&overlap
, &imm64
))
5581 i386_operand_type temp
;
5583 operand_type_set (&temp
, 0);
5584 if (i
.suffix
== BYTE_MNEM_SUFFIX
)
5586 temp
.bitfield
.imm8
= overlap
.bitfield
.imm8
;
5587 temp
.bitfield
.imm8s
= overlap
.bitfield
.imm8s
;
5589 else if (i
.suffix
== WORD_MNEM_SUFFIX
)
5590 temp
.bitfield
.imm16
= overlap
.bitfield
.imm16
;
5591 else if (i
.suffix
== QWORD_MNEM_SUFFIX
)
5593 temp
.bitfield
.imm64
= overlap
.bitfield
.imm64
;
5594 temp
.bitfield
.imm32s
= overlap
.bitfield
.imm32s
;
5597 temp
.bitfield
.imm32
= overlap
.bitfield
.imm32
;
5600 else if (operand_type_equal (&overlap
, &imm16_32_32s
)
5601 || operand_type_equal (&overlap
, &imm16_32
)
5602 || operand_type_equal (&overlap
, &imm16_32s
))
5604 if ((flag_code
== CODE_16BIT
) ^ (i
.prefix
[DATA_PREFIX
] != 0))
5609 if (!operand_type_equal (&overlap
, &imm8
)
5610 && !operand_type_equal (&overlap
, &imm8s
)
5611 && !operand_type_equal (&overlap
, &imm16
)
5612 && !operand_type_equal (&overlap
, &imm32
)
5613 && !operand_type_equal (&overlap
, &imm32s
)
5614 && !operand_type_equal (&overlap
, &imm64
))
5616 as_bad (_("no instruction mnemonic suffix given; "
5617 "can't determine immediate size"));
5621 i
.types
[j
] = overlap
;
5631 /* Update the first 2 immediate operands. */
5632 n
= i
.operands
> 2 ? 2 : i
.operands
;
5635 for (j
= 0; j
< n
; j
++)
5636 if (update_imm (j
) == 0)
5639 /* The 3rd operand can't be immediate operand. */
5640 gas_assert (operand_type_check (i
.types
[2], imm
) == 0);
5647 bad_implicit_operand (int xmm
)
5649 const char *ireg
= xmm
? "xmm0" : "ymm0";
5652 as_bad (_("the last operand of `%s' must be `%s%s'"),
5653 i
.tm
.name
, register_prefix
, ireg
);
5655 as_bad (_("the first operand of `%s' must be `%s%s'"),
5656 i
.tm
.name
, register_prefix
, ireg
);
5661 process_operands (void)
5663 /* Default segment register this instruction will use for memory
5664 accesses. 0 means unknown. This is only for optimizing out
5665 unnecessary segment overrides. */
5666 const seg_entry
*default_seg
= 0;
5668 if (i
.tm
.opcode_modifier
.sse2avx
&& i
.tm
.opcode_modifier
.vexvvvv
)
5670 unsigned int dupl
= i
.operands
;
5671 unsigned int dest
= dupl
- 1;
5674 /* The destination must be an xmm register. */
5675 gas_assert (i
.reg_operands
5676 && MAX_OPERANDS
> dupl
5677 && operand_type_equal (&i
.types
[dest
], ®xmm
));
5679 if (i
.tm
.opcode_modifier
.firstxmm0
)
5681 /* The first operand is implicit and must be xmm0. */
5682 gas_assert (operand_type_equal (&i
.types
[0], ®xmm
));
5683 if (register_number (i
.op
[0].regs
) != 0)
5684 return bad_implicit_operand (1);
5686 if (i
.tm
.opcode_modifier
.vexsources
== VEX3SOURCES
)
5688 /* Keep xmm0 for instructions with VEX prefix and 3
5694 /* We remove the first xmm0 and keep the number of
5695 operands unchanged, which in fact duplicates the
5697 for (j
= 1; j
< i
.operands
; j
++)
5699 i
.op
[j
- 1] = i
.op
[j
];
5700 i
.types
[j
- 1] = i
.types
[j
];
5701 i
.tm
.operand_types
[j
- 1] = i
.tm
.operand_types
[j
];
5705 else if (i
.tm
.opcode_modifier
.implicit1stxmm0
)
5707 gas_assert ((MAX_OPERANDS
- 1) > dupl
5708 && (i
.tm
.opcode_modifier
.vexsources
5711 /* Add the implicit xmm0 for instructions with VEX prefix
5713 for (j
= i
.operands
; j
> 0; j
--)
5715 i
.op
[j
] = i
.op
[j
- 1];
5716 i
.types
[j
] = i
.types
[j
- 1];
5717 i
.tm
.operand_types
[j
] = i
.tm
.operand_types
[j
- 1];
5720 = (const reg_entry
*) hash_find (reg_hash
, "xmm0");
5721 i
.types
[0] = regxmm
;
5722 i
.tm
.operand_types
[0] = regxmm
;
5725 i
.reg_operands
+= 2;
5730 i
.op
[dupl
] = i
.op
[dest
];
5731 i
.types
[dupl
] = i
.types
[dest
];
5732 i
.tm
.operand_types
[dupl
] = i
.tm
.operand_types
[dest
];
5741 i
.op
[dupl
] = i
.op
[dest
];
5742 i
.types
[dupl
] = i
.types
[dest
];
5743 i
.tm
.operand_types
[dupl
] = i
.tm
.operand_types
[dest
];
5746 if (i
.tm
.opcode_modifier
.immext
)
5749 else if (i
.tm
.opcode_modifier
.firstxmm0
)
5753 /* The first operand is implicit and must be xmm0/ymm0/zmm0. */
5754 gas_assert (i
.reg_operands
5755 && (operand_type_equal (&i
.types
[0], ®xmm
)
5756 || operand_type_equal (&i
.types
[0], ®ymm
)
5757 || operand_type_equal (&i
.types
[0], ®zmm
)));
5758 if (register_number (i
.op
[0].regs
) != 0)
5759 return bad_implicit_operand (i
.types
[0].bitfield
.regxmm
);
5761 for (j
= 1; j
< i
.operands
; j
++)
5763 i
.op
[j
- 1] = i
.op
[j
];
5764 i
.types
[j
- 1] = i
.types
[j
];
5766 /* We need to adjust fields in i.tm since they are used by
5767 build_modrm_byte. */
5768 i
.tm
.operand_types
[j
- 1] = i
.tm
.operand_types
[j
];
5775 else if (i
.tm
.opcode_modifier
.regkludge
)
5777 /* The imul $imm, %reg instruction is converted into
5778 imul $imm, %reg, %reg, and the clr %reg instruction
5779 is converted into xor %reg, %reg. */
5781 unsigned int first_reg_op
;
5783 if (operand_type_check (i
.types
[0], reg
))
5787 /* Pretend we saw the extra register operand. */
5788 gas_assert (i
.reg_operands
== 1
5789 && i
.op
[first_reg_op
+ 1].regs
== 0);
5790 i
.op
[first_reg_op
+ 1].regs
= i
.op
[first_reg_op
].regs
;
5791 i
.types
[first_reg_op
+ 1] = i
.types
[first_reg_op
];
5796 if (i
.tm
.opcode_modifier
.shortform
)
5798 if (i
.types
[0].bitfield
.sreg2
5799 || i
.types
[0].bitfield
.sreg3
)
5801 if (i
.tm
.base_opcode
== POP_SEG_SHORT
5802 && i
.op
[0].regs
->reg_num
== 1)
5804 as_bad (_("you can't `pop %scs'"), register_prefix
);
5807 i
.tm
.base_opcode
|= (i
.op
[0].regs
->reg_num
<< 3);
5808 if ((i
.op
[0].regs
->reg_flags
& RegRex
) != 0)
5813 /* The register or float register operand is in operand
5817 if (i
.types
[0].bitfield
.floatreg
5818 || operand_type_check (i
.types
[0], reg
))
5822 /* Register goes in low 3 bits of opcode. */
5823 i
.tm
.base_opcode
|= i
.op
[op
].regs
->reg_num
;
5824 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
5826 if (!quiet_warnings
&& i
.tm
.opcode_modifier
.ugh
)
5828 /* Warn about some common errors, but press on regardless.
5829 The first case can be generated by gcc (<= 2.8.1). */
5830 if (i
.operands
== 2)
5832 /* Reversed arguments on faddp, fsubp, etc. */
5833 as_warn (_("translating to `%s %s%s,%s%s'"), i
.tm
.name
,
5834 register_prefix
, i
.op
[!intel_syntax
].regs
->reg_name
,
5835 register_prefix
, i
.op
[intel_syntax
].regs
->reg_name
);
5839 /* Extraneous `l' suffix on fp insn. */
5840 as_warn (_("translating to `%s %s%s'"), i
.tm
.name
,
5841 register_prefix
, i
.op
[0].regs
->reg_name
);
5846 else if (i
.tm
.opcode_modifier
.modrm
)
5848 /* The opcode is completed (modulo i.tm.extension_opcode which
5849 must be put into the modrm byte). Now, we make the modrm and
5850 index base bytes based on all the info we've collected. */
5852 default_seg
= build_modrm_byte ();
5854 else if ((i
.tm
.base_opcode
& ~0x3) == MOV_AX_DISP32
)
5858 else if (i
.tm
.opcode_modifier
.isstring
)
5860 /* For the string instructions that allow a segment override
5861 on one of their operands, the default segment is ds. */
5865 if (i
.tm
.base_opcode
== 0x8d /* lea */
5868 as_warn (_("segment override on `%s' is ineffectual"), i
.tm
.name
);
5870 /* If a segment was explicitly specified, and the specified segment
5871 is not the default, use an opcode prefix to select it. If we
5872 never figured out what the default segment is, then default_seg
5873 will be zero at this point, and the specified segment prefix will
5875 if ((i
.seg
[0]) && (i
.seg
[0] != default_seg
))
5877 if (!add_prefix (i
.seg
[0]->seg_prefix
))
5883 static const seg_entry
*
5884 build_modrm_byte (void)
5886 const seg_entry
*default_seg
= 0;
5887 unsigned int source
, dest
;
5890 /* The first operand of instructions with VEX prefix and 3 sources
5891 must be VEX_Imm4. */
5892 vex_3_sources
= i
.tm
.opcode_modifier
.vexsources
== VEX3SOURCES
;
5895 unsigned int nds
, reg_slot
;
5898 if (i
.tm
.opcode_modifier
.veximmext
5899 && i
.tm
.opcode_modifier
.immext
)
5901 dest
= i
.operands
- 2;
5902 gas_assert (dest
== 3);
5905 dest
= i
.operands
- 1;
5908 /* There are 2 kinds of instructions:
5909 1. 5 operands: 4 register operands or 3 register operands
5910 plus 1 memory operand plus one Vec_Imm4 operand, VexXDS, and
5911 VexW0 or VexW1. The destination must be either XMM, YMM or
5913 2. 4 operands: 4 register operands or 3 register operands
5914 plus 1 memory operand, VexXDS, and VexImmExt */
5915 gas_assert ((i
.reg_operands
== 4
5916 || (i
.reg_operands
== 3 && i
.mem_operands
== 1))
5917 && i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
5918 && (i
.tm
.opcode_modifier
.veximmext
5919 || (i
.imm_operands
== 1
5920 && i
.types
[0].bitfield
.vec_imm4
5921 && (i
.tm
.opcode_modifier
.vexw
== VEXW0
5922 || i
.tm
.opcode_modifier
.vexw
== VEXW1
)
5923 && (operand_type_equal (&i
.tm
.operand_types
[dest
], ®xmm
)
5924 || operand_type_equal (&i
.tm
.operand_types
[dest
], ®ymm
)
5925 || operand_type_equal (&i
.tm
.operand_types
[dest
], ®zmm
)))));
5927 if (i
.imm_operands
== 0)
5929 /* When there is no immediate operand, generate an 8bit
5930 immediate operand to encode the first operand. */
5931 exp
= &im_expressions
[i
.imm_operands
++];
5932 i
.op
[i
.operands
].imms
= exp
;
5933 i
.types
[i
.operands
] = imm8
;
5935 /* If VexW1 is set, the first operand is the source and
5936 the second operand is encoded in the immediate operand. */
5937 if (i
.tm
.opcode_modifier
.vexw
== VEXW1
)
5948 /* FMA swaps REG and NDS. */
5949 if (i
.tm
.cpu_flags
.bitfield
.cpufma
)
5957 gas_assert (operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
5959 || operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
5961 || operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
5963 exp
->X_op
= O_constant
;
5964 exp
->X_add_number
= register_number (i
.op
[reg_slot
].regs
) << 4;
5965 gas_assert ((i
.op
[reg_slot
].regs
->reg_flags
& RegVRex
) == 0);
5969 unsigned int imm_slot
;
5971 if (i
.tm
.opcode_modifier
.vexw
== VEXW0
)
5973 /* If VexW0 is set, the third operand is the source and
5974 the second operand is encoded in the immediate
5981 /* VexW1 is set, the second operand is the source and
5982 the third operand is encoded in the immediate
5988 if (i
.tm
.opcode_modifier
.immext
)
5990 /* When ImmExt is set, the immdiate byte is the last
5992 imm_slot
= i
.operands
- 1;
6000 /* Turn on Imm8 so that output_imm will generate it. */
6001 i
.types
[imm_slot
].bitfield
.imm8
= 1;
6004 gas_assert (operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
6006 || operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
6008 || operand_type_equal (&i
.tm
.operand_types
[reg_slot
],
6010 i
.op
[imm_slot
].imms
->X_add_number
6011 |= register_number (i
.op
[reg_slot
].regs
) << 4;
6012 gas_assert ((i
.op
[reg_slot
].regs
->reg_flags
& RegVRex
) == 0);
6015 gas_assert (operand_type_equal (&i
.tm
.operand_types
[nds
], ®xmm
)
6016 || operand_type_equal (&i
.tm
.operand_types
[nds
],
6018 || operand_type_equal (&i
.tm
.operand_types
[nds
],
6020 i
.vex
.register_specifier
= i
.op
[nds
].regs
;
6025 /* i.reg_operands MUST be the number of real register operands;
6026 implicit registers do not count. If there are 3 register
6027 operands, it must be a instruction with VexNDS. For a
6028 instruction with VexNDD, the destination register is encoded
6029 in VEX prefix. If there are 4 register operands, it must be
6030 a instruction with VEX prefix and 3 sources. */
6031 if (i
.mem_operands
== 0
6032 && ((i
.reg_operands
== 2
6033 && i
.tm
.opcode_modifier
.vexvvvv
<= VEXXDS
)
6034 || (i
.reg_operands
== 3
6035 && i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
6036 || (i
.reg_operands
== 4 && vex_3_sources
)))
6044 /* When there are 3 operands, one of them may be immediate,
6045 which may be the first or the last operand. Otherwise,
6046 the first operand must be shift count register (cl) or it
6047 is an instruction with VexNDS. */
6048 gas_assert (i
.imm_operands
== 1
6049 || (i
.imm_operands
== 0
6050 && (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
6051 || i
.types
[0].bitfield
.shiftcount
)));
6052 if (operand_type_check (i
.types
[0], imm
)
6053 || i
.types
[0].bitfield
.shiftcount
)
6059 /* When there are 4 operands, the first two must be 8bit
6060 immediate operands. The source operand will be the 3rd
6063 For instructions with VexNDS, if the first operand
6064 an imm8, the source operand is the 2nd one. If the last
6065 operand is imm8, the source operand is the first one. */
6066 gas_assert ((i
.imm_operands
== 2
6067 && i
.types
[0].bitfield
.imm8
6068 && i
.types
[1].bitfield
.imm8
)
6069 || (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
6070 && i
.imm_operands
== 1
6071 && (i
.types
[0].bitfield
.imm8
6072 || i
.types
[i
.operands
- 1].bitfield
.imm8
6074 if (i
.imm_operands
== 2)
6078 if (i
.types
[0].bitfield
.imm8
)
6085 if (i
.tm
.opcode_modifier
.evex
)
6087 /* For EVEX instructions, when there are 5 operands, the
6088 first one must be immediate operand. If the second one
6089 is immediate operand, the source operand is the 3th
6090 one. If the last one is immediate operand, the source
6091 operand is the 2nd one. */
6092 gas_assert (i
.imm_operands
== 2
6093 && i
.tm
.opcode_modifier
.sae
6094 && operand_type_check (i
.types
[0], imm
));
6095 if (operand_type_check (i
.types
[1], imm
))
6097 else if (operand_type_check (i
.types
[4], imm
))
6111 /* RC/SAE operand could be between DEST and SRC. That happens
6112 when one operand is GPR and the other one is XMM/YMM/ZMM
6114 if (i
.rounding
&& i
.rounding
->operand
== (int) dest
)
6117 if (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
6119 /* For instructions with VexNDS, the register-only source
6120 operand must be 32/64bit integer, XMM, YMM or ZMM
6121 register. It is encoded in VEX prefix. We need to
6122 clear RegMem bit before calling operand_type_equal. */
6124 i386_operand_type op
;
6127 /* Check register-only source operand when two source
6128 operands are swapped. */
6129 if (!i
.tm
.operand_types
[source
].bitfield
.baseindex
6130 && i
.tm
.operand_types
[dest
].bitfield
.baseindex
)
6138 op
= i
.tm
.operand_types
[vvvv
];
6139 op
.bitfield
.regmem
= 0;
6140 if ((dest
+ 1) >= i
.operands
6141 || (op
.bitfield
.reg32
!= 1
6142 && !op
.bitfield
.reg64
!= 1
6143 && !operand_type_equal (&op
, ®xmm
)
6144 && !operand_type_equal (&op
, ®ymm
)
6145 && !operand_type_equal (&op
, ®zmm
)
6146 && !operand_type_equal (&op
, ®mask
)))
6148 i
.vex
.register_specifier
= i
.op
[vvvv
].regs
;
6154 /* One of the register operands will be encoded in the i.tm.reg
6155 field, the other in the combined i.tm.mode and i.tm.regmem
6156 fields. If no form of this instruction supports a memory
6157 destination operand, then we assume the source operand may
6158 sometimes be a memory operand and so we need to store the
6159 destination in the i.rm.reg field. */
6160 if (!i
.tm
.operand_types
[dest
].bitfield
.regmem
6161 && operand_type_check (i
.tm
.operand_types
[dest
], anymem
) == 0)
6163 i
.rm
.reg
= i
.op
[dest
].regs
->reg_num
;
6164 i
.rm
.regmem
= i
.op
[source
].regs
->reg_num
;
6165 if ((i
.op
[dest
].regs
->reg_flags
& RegRex
) != 0)
6167 if ((i
.op
[dest
].regs
->reg_flags
& RegVRex
) != 0)
6169 if ((i
.op
[source
].regs
->reg_flags
& RegRex
) != 0)
6171 if ((i
.op
[source
].regs
->reg_flags
& RegVRex
) != 0)
6176 i
.rm
.reg
= i
.op
[source
].regs
->reg_num
;
6177 i
.rm
.regmem
= i
.op
[dest
].regs
->reg_num
;
6178 if ((i
.op
[dest
].regs
->reg_flags
& RegRex
) != 0)
6180 if ((i
.op
[dest
].regs
->reg_flags
& RegVRex
) != 0)
6182 if ((i
.op
[source
].regs
->reg_flags
& RegRex
) != 0)
6184 if ((i
.op
[source
].regs
->reg_flags
& RegVRex
) != 0)
6187 if (flag_code
!= CODE_64BIT
&& (i
.rex
& (REX_R
| REX_B
)))
6189 if (!i
.types
[0].bitfield
.control
6190 && !i
.types
[1].bitfield
.control
)
6192 i
.rex
&= ~(REX_R
| REX_B
);
6193 add_prefix (LOCK_PREFIX_OPCODE
);
6197 { /* If it's not 2 reg operands... */
6202 unsigned int fake_zero_displacement
= 0;
6205 for (op
= 0; op
< i
.operands
; op
++)
6206 if (operand_type_check (i
.types
[op
], anymem
))
6208 gas_assert (op
< i
.operands
);
6210 if (i
.tm
.opcode_modifier
.vecsib
)
6212 if (i
.index_reg
->reg_num
== RegEiz
6213 || i
.index_reg
->reg_num
== RegRiz
)
6216 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
6219 i
.sib
.base
= NO_BASE_REGISTER
;
6220 i
.sib
.scale
= i
.log2_scale_factor
;
6221 /* No Vec_Disp8 if there is no base. */
6222 i
.types
[op
].bitfield
.vec_disp8
= 0;
6223 i
.types
[op
].bitfield
.disp8
= 0;
6224 i
.types
[op
].bitfield
.disp16
= 0;
6225 i
.types
[op
].bitfield
.disp64
= 0;
6226 if (flag_code
!= CODE_64BIT
)
6228 /* Must be 32 bit */
6229 i
.types
[op
].bitfield
.disp32
= 1;
6230 i
.types
[op
].bitfield
.disp32s
= 0;
6234 i
.types
[op
].bitfield
.disp32
= 0;
6235 i
.types
[op
].bitfield
.disp32s
= 1;
6238 i
.sib
.index
= i
.index_reg
->reg_num
;
6239 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
6241 if ((i
.index_reg
->reg_flags
& RegVRex
) != 0)
6247 if (i
.base_reg
== 0)
6250 if (!i
.disp_operands
)
6252 fake_zero_displacement
= 1;
6253 /* Instructions with VSIB byte need 32bit displacement
6254 if there is no base register. */
6255 if (i
.tm
.opcode_modifier
.vecsib
)
6256 i
.types
[op
].bitfield
.disp32
= 1;
6258 if (i
.index_reg
== 0)
6260 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
6261 /* Operand is just <disp> */
6262 if (flag_code
== CODE_64BIT
)
6264 /* 64bit mode overwrites the 32bit absolute
6265 addressing by RIP relative addressing and
6266 absolute addressing is encoded by one of the
6267 redundant SIB forms. */
6268 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
6269 i
.sib
.base
= NO_BASE_REGISTER
;
6270 i
.sib
.index
= NO_INDEX_REGISTER
;
6271 i
.types
[op
] = ((i
.prefix
[ADDR_PREFIX
] == 0)
6272 ? disp32s
: disp32
);
6274 else if ((flag_code
== CODE_16BIT
)
6275 ^ (i
.prefix
[ADDR_PREFIX
] != 0))
6277 i
.rm
.regmem
= NO_BASE_REGISTER_16
;
6278 i
.types
[op
] = disp16
;
6282 i
.rm
.regmem
= NO_BASE_REGISTER
;
6283 i
.types
[op
] = disp32
;
6286 else if (!i
.tm
.opcode_modifier
.vecsib
)
6288 /* !i.base_reg && i.index_reg */
6289 if (i
.index_reg
->reg_num
== RegEiz
6290 || i
.index_reg
->reg_num
== RegRiz
)
6291 i
.sib
.index
= NO_INDEX_REGISTER
;
6293 i
.sib
.index
= i
.index_reg
->reg_num
;
6294 i
.sib
.base
= NO_BASE_REGISTER
;
6295 i
.sib
.scale
= i
.log2_scale_factor
;
6296 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
6297 /* No Vec_Disp8 if there is no base. */
6298 i
.types
[op
].bitfield
.vec_disp8
= 0;
6299 i
.types
[op
].bitfield
.disp8
= 0;
6300 i
.types
[op
].bitfield
.disp16
= 0;
6301 i
.types
[op
].bitfield
.disp64
= 0;
6302 if (flag_code
!= CODE_64BIT
)
6304 /* Must be 32 bit */
6305 i
.types
[op
].bitfield
.disp32
= 1;
6306 i
.types
[op
].bitfield
.disp32s
= 0;
6310 i
.types
[op
].bitfield
.disp32
= 0;
6311 i
.types
[op
].bitfield
.disp32s
= 1;
6313 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
6317 /* RIP addressing for 64bit mode. */
6318 else if (i
.base_reg
->reg_num
== RegRip
||
6319 i
.base_reg
->reg_num
== RegEip
)
6321 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
6322 i
.rm
.regmem
= NO_BASE_REGISTER
;
6323 i
.types
[op
].bitfield
.disp8
= 0;
6324 i
.types
[op
].bitfield
.disp16
= 0;
6325 i
.types
[op
].bitfield
.disp32
= 0;
6326 i
.types
[op
].bitfield
.disp32s
= 1;
6327 i
.types
[op
].bitfield
.disp64
= 0;
6328 i
.types
[op
].bitfield
.vec_disp8
= 0;
6329 i
.flags
[op
] |= Operand_PCrel
;
6330 if (! i
.disp_operands
)
6331 fake_zero_displacement
= 1;
6333 else if (i
.base_reg
->reg_type
.bitfield
.reg16
)
6335 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
6336 switch (i
.base_reg
->reg_num
)
6339 if (i
.index_reg
== 0)
6341 else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */
6342 i
.rm
.regmem
= i
.index_reg
->reg_num
- 6;
6346 if (i
.index_reg
== 0)
6349 if (operand_type_check (i
.types
[op
], disp
) == 0)
6351 /* fake (%bp) into 0(%bp) */
6352 if (i
.tm
.operand_types
[op
].bitfield
.vec_disp8
)
6353 i
.types
[op
].bitfield
.vec_disp8
= 1;
6355 i
.types
[op
].bitfield
.disp8
= 1;
6356 fake_zero_displacement
= 1;
6359 else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */
6360 i
.rm
.regmem
= i
.index_reg
->reg_num
- 6 + 2;
6362 default: /* (%si) -> 4 or (%di) -> 5 */
6363 i
.rm
.regmem
= i
.base_reg
->reg_num
- 6 + 4;
6365 i
.rm
.mode
= mode_from_disp_size (i
.types
[op
]);
6367 else /* i.base_reg and 32/64 bit mode */
6369 if (flag_code
== CODE_64BIT
6370 && operand_type_check (i
.types
[op
], disp
))
6372 i386_operand_type temp
;
6373 operand_type_set (&temp
, 0);
6374 temp
.bitfield
.disp8
= i
.types
[op
].bitfield
.disp8
;
6375 temp
.bitfield
.vec_disp8
6376 = i
.types
[op
].bitfield
.vec_disp8
;
6378 if (i
.prefix
[ADDR_PREFIX
] == 0)
6379 i
.types
[op
].bitfield
.disp32s
= 1;
6381 i
.types
[op
].bitfield
.disp32
= 1;
6384 if (!i
.tm
.opcode_modifier
.vecsib
)
6385 i
.rm
.regmem
= i
.base_reg
->reg_num
;
6386 if ((i
.base_reg
->reg_flags
& RegRex
) != 0)
6388 i
.sib
.base
= i
.base_reg
->reg_num
;
6389 /* x86-64 ignores REX prefix bit here to avoid decoder
6391 if (!(i
.base_reg
->reg_flags
& RegRex
)
6392 && (i
.base_reg
->reg_num
== EBP_REG_NUM
6393 || i
.base_reg
->reg_num
== ESP_REG_NUM
))
6395 if (i
.base_reg
->reg_num
== 5 && i
.disp_operands
== 0)
6397 fake_zero_displacement
= 1;
6398 if (i
.tm
.operand_types
[op
].bitfield
.vec_disp8
)
6399 i
.types
[op
].bitfield
.vec_disp8
= 1;
6401 i
.types
[op
].bitfield
.disp8
= 1;
6403 i
.sib
.scale
= i
.log2_scale_factor
;
6404 if (i
.index_reg
== 0)
6406 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
6407 /* <disp>(%esp) becomes two byte modrm with no index
6408 register. We've already stored the code for esp
6409 in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING.
6410 Any base register besides %esp will not use the
6411 extra modrm byte. */
6412 i
.sib
.index
= NO_INDEX_REGISTER
;
6414 else if (!i
.tm
.opcode_modifier
.vecsib
)
6416 if (i
.index_reg
->reg_num
== RegEiz
6417 || i
.index_reg
->reg_num
== RegRiz
)
6418 i
.sib
.index
= NO_INDEX_REGISTER
;
6420 i
.sib
.index
= i
.index_reg
->reg_num
;
6421 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
6422 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
6427 && (i
.reloc
[op
] == BFD_RELOC_386_TLS_DESC_CALL
6428 || i
.reloc
[op
] == BFD_RELOC_X86_64_TLSDESC_CALL
))
6432 if (!fake_zero_displacement
6436 fake_zero_displacement
= 1;
6437 if (i
.disp_encoding
== disp_encoding_8bit
)
6438 i
.types
[op
].bitfield
.disp8
= 1;
6440 i
.types
[op
].bitfield
.disp32
= 1;
6442 i
.rm
.mode
= mode_from_disp_size (i
.types
[op
]);
6446 if (fake_zero_displacement
)
6448 /* Fakes a zero displacement assuming that i.types[op]
6449 holds the correct displacement size. */
6452 gas_assert (i
.op
[op
].disps
== 0);
6453 exp
= &disp_expressions
[i
.disp_operands
++];
6454 i
.op
[op
].disps
= exp
;
6455 exp
->X_op
= O_constant
;
6456 exp
->X_add_number
= 0;
6457 exp
->X_add_symbol
= (symbolS
*) 0;
6458 exp
->X_op_symbol
= (symbolS
*) 0;
6466 if (i
.tm
.opcode_modifier
.vexsources
== XOP2SOURCES
)
6468 if (operand_type_check (i
.types
[0], imm
))
6469 i
.vex
.register_specifier
= NULL
;
6472 /* VEX.vvvv encodes one of the sources when the first
6473 operand is not an immediate. */
6474 if (i
.tm
.opcode_modifier
.vexw
== VEXW0
)
6475 i
.vex
.register_specifier
= i
.op
[0].regs
;
6477 i
.vex
.register_specifier
= i
.op
[1].regs
;
6480 /* Destination is a XMM register encoded in the ModRM.reg
6482 i
.rm
.reg
= i
.op
[2].regs
->reg_num
;
6483 if ((i
.op
[2].regs
->reg_flags
& RegRex
) != 0)
6486 /* ModRM.rm and VEX.B encodes the other source. */
6487 if (!i
.mem_operands
)
6491 if (i
.tm
.opcode_modifier
.vexw
== VEXW0
)
6492 i
.rm
.regmem
= i
.op
[1].regs
->reg_num
;
6494 i
.rm
.regmem
= i
.op
[0].regs
->reg_num
;
6496 if ((i
.op
[1].regs
->reg_flags
& RegRex
) != 0)
6500 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXLWP
)
6502 i
.vex
.register_specifier
= i
.op
[2].regs
;
6503 if (!i
.mem_operands
)
6506 i
.rm
.regmem
= i
.op
[1].regs
->reg_num
;
6507 if ((i
.op
[1].regs
->reg_flags
& RegRex
) != 0)
6511 /* Fill in i.rm.reg or i.rm.regmem field with register operand
6512 (if any) based on i.tm.extension_opcode. Again, we must be
6513 careful to make sure that segment/control/debug/test/MMX
6514 registers are coded into the i.rm.reg field. */
6515 else if (i
.reg_operands
)
6518 unsigned int vex_reg
= ~0;
6520 for (op
= 0; op
< i
.operands
; op
++)
6521 if (i
.types
[op
].bitfield
.reg8
6522 || i
.types
[op
].bitfield
.reg16
6523 || i
.types
[op
].bitfield
.reg32
6524 || i
.types
[op
].bitfield
.reg64
6525 || i
.types
[op
].bitfield
.regmmx
6526 || i
.types
[op
].bitfield
.regxmm
6527 || i
.types
[op
].bitfield
.regymm
6528 || i
.types
[op
].bitfield
.regbnd
6529 || i
.types
[op
].bitfield
.regzmm
6530 || i
.types
[op
].bitfield
.regmask
6531 || i
.types
[op
].bitfield
.sreg2
6532 || i
.types
[op
].bitfield
.sreg3
6533 || i
.types
[op
].bitfield
.control
6534 || i
.types
[op
].bitfield
.debug
6535 || i
.types
[op
].bitfield
.test
)
6540 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
6542 /* For instructions with VexNDS, the register-only
6543 source operand is encoded in VEX prefix. */
6544 gas_assert (mem
!= (unsigned int) ~0);
6549 gas_assert (op
< i
.operands
);
6553 /* Check register-only source operand when two source
6554 operands are swapped. */
6555 if (!i
.tm
.operand_types
[op
].bitfield
.baseindex
6556 && i
.tm
.operand_types
[op
+ 1].bitfield
.baseindex
)
6560 gas_assert (mem
== (vex_reg
+ 1)
6561 && op
< i
.operands
);
6566 gas_assert (vex_reg
< i
.operands
);
6570 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXNDD
)
6572 /* For instructions with VexNDD, the register destination
6573 is encoded in VEX prefix. */
6574 if (i
.mem_operands
== 0)
6576 /* There is no memory operand. */
6577 gas_assert ((op
+ 2) == i
.operands
);
6582 /* There are only 2 operands. */
6583 gas_assert (op
< 2 && i
.operands
== 2);
6588 gas_assert (op
< i
.operands
);
6590 if (vex_reg
!= (unsigned int) ~0)
6592 i386_operand_type
*type
= &i
.tm
.operand_types
[vex_reg
];
6594 if (type
->bitfield
.reg32
!= 1
6595 && type
->bitfield
.reg64
!= 1
6596 && !operand_type_equal (type
, ®xmm
)
6597 && !operand_type_equal (type
, ®ymm
)
6598 && !operand_type_equal (type
, ®zmm
)
6599 && !operand_type_equal (type
, ®mask
))
6602 i
.vex
.register_specifier
= i
.op
[vex_reg
].regs
;
6605 /* Don't set OP operand twice. */
6608 /* If there is an extension opcode to put here, the
6609 register number must be put into the regmem field. */
6610 if (i
.tm
.extension_opcode
!= None
)
6612 i
.rm
.regmem
= i
.op
[op
].regs
->reg_num
;
6613 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
6615 if ((i
.op
[op
].regs
->reg_flags
& RegVRex
) != 0)
6620 i
.rm
.reg
= i
.op
[op
].regs
->reg_num
;
6621 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
6623 if ((i
.op
[op
].regs
->reg_flags
& RegVRex
) != 0)
6628 /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we
6629 must set it to 3 to indicate this is a register operand
6630 in the regmem field. */
6631 if (!i
.mem_operands
)
6635 /* Fill in i.rm.reg field with extension opcode (if any). */
6636 if (i
.tm
.extension_opcode
!= None
)
6637 i
.rm
.reg
= i
.tm
.extension_opcode
;
6643 output_branch (void)
6649 relax_substateT subtype
;
6653 code16
= flag_code
== CODE_16BIT
? CODE16
: 0;
6654 size
= i
.disp_encoding
== disp_encoding_32bit
? BIG
: SMALL
;
6657 if (i
.prefix
[DATA_PREFIX
] != 0)
6663 /* Pentium4 branch hints. */
6664 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
/* not taken */
6665 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
/* taken */)
6670 if (i
.prefix
[REX_PREFIX
] != 0)
6676 /* BND prefixed jump. */
6677 if (i
.prefix
[BND_PREFIX
] != 0)
6679 FRAG_APPEND_1_CHAR (i
.prefix
[BND_PREFIX
]);
6683 if (i
.prefixes
!= 0 && !intel_syntax
)
6684 as_warn (_("skipping prefixes on this instruction"));
6686 /* It's always a symbol; End frag & setup for relax.
6687 Make sure there is enough room in this frag for the largest
6688 instruction we may generate in md_convert_frag. This is 2
6689 bytes for the opcode and room for the prefix and largest
6691 frag_grow (prefix
+ 2 + 4);
6692 /* Prefix and 1 opcode byte go in fr_fix. */
6693 p
= frag_more (prefix
+ 1);
6694 if (i
.prefix
[DATA_PREFIX
] != 0)
6695 *p
++ = DATA_PREFIX_OPCODE
;
6696 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
6697 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
)
6698 *p
++ = i
.prefix
[SEG_PREFIX
];
6699 if (i
.prefix
[REX_PREFIX
] != 0)
6700 *p
++ = i
.prefix
[REX_PREFIX
];
6701 *p
= i
.tm
.base_opcode
;
6703 if ((unsigned char) *p
== JUMP_PC_RELATIVE
)
6704 subtype
= ENCODE_RELAX_STATE (UNCOND_JUMP
, size
);
6705 else if (cpu_arch_flags
.bitfield
.cpui386
)
6706 subtype
= ENCODE_RELAX_STATE (COND_JUMP
, size
);
6708 subtype
= ENCODE_RELAX_STATE (COND_JUMP86
, size
);
6711 sym
= i
.op
[0].disps
->X_add_symbol
;
6712 off
= i
.op
[0].disps
->X_add_number
;
6714 if (i
.op
[0].disps
->X_op
!= O_constant
6715 && i
.op
[0].disps
->X_op
!= O_symbol
)
6717 /* Handle complex expressions. */
6718 sym
= make_expr_symbol (i
.op
[0].disps
);
6722 /* 1 possible extra opcode + 4 byte displacement go in var part.
6723 Pass reloc in fr_var. */
6724 frag_var (rs_machine_dependent
, 5, i
.reloc
[0], subtype
, sym
, off
, p
);
6734 if (i
.tm
.opcode_modifier
.jumpbyte
)
6736 /* This is a loop or jecxz type instruction. */
6738 if (i
.prefix
[ADDR_PREFIX
] != 0)
6740 FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE
);
6743 /* Pentium4 branch hints. */
6744 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
/* not taken */
6745 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
/* taken */)
6747 FRAG_APPEND_1_CHAR (i
.prefix
[SEG_PREFIX
]);
6756 if (flag_code
== CODE_16BIT
)
6759 if (i
.prefix
[DATA_PREFIX
] != 0)
6761 FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE
);
6771 if (i
.prefix
[REX_PREFIX
] != 0)
6773 FRAG_APPEND_1_CHAR (i
.prefix
[REX_PREFIX
]);
6777 /* BND prefixed jump. */
6778 if (i
.prefix
[BND_PREFIX
] != 0)
6780 FRAG_APPEND_1_CHAR (i
.prefix
[BND_PREFIX
]);
6784 if (i
.prefixes
!= 0 && !intel_syntax
)
6785 as_warn (_("skipping prefixes on this instruction"));
6787 p
= frag_more (i
.tm
.opcode_length
+ size
);
6788 switch (i
.tm
.opcode_length
)
6791 *p
++ = i
.tm
.base_opcode
>> 8;
6793 *p
++ = i
.tm
.base_opcode
;
6799 fixP
= fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
6800 i
.op
[0].disps
, 1, reloc (size
, 1, 1, i
.reloc
[0]));
6802 /* All jumps handled here are signed, but don't use a signed limit
6803 check for 32 and 16 bit jumps as we want to allow wrap around at
6804 4G and 64k respectively. */
6806 fixP
->fx_signed
= 1;
6810 output_interseg_jump (void)
6818 if (flag_code
== CODE_16BIT
)
6822 if (i
.prefix
[DATA_PREFIX
] != 0)
6828 if (i
.prefix
[REX_PREFIX
] != 0)
6838 if (i
.prefixes
!= 0 && !intel_syntax
)
6839 as_warn (_("skipping prefixes on this instruction"));
6841 /* 1 opcode; 2 segment; offset */
6842 p
= frag_more (prefix
+ 1 + 2 + size
);
6844 if (i
.prefix
[DATA_PREFIX
] != 0)
6845 *p
++ = DATA_PREFIX_OPCODE
;
6847 if (i
.prefix
[REX_PREFIX
] != 0)
6848 *p
++ = i
.prefix
[REX_PREFIX
];
6850 *p
++ = i
.tm
.base_opcode
;
6851 if (i
.op
[1].imms
->X_op
== O_constant
)
6853 offsetT n
= i
.op
[1].imms
->X_add_number
;
6856 && !fits_in_unsigned_word (n
)
6857 && !fits_in_signed_word (n
))
6859 as_bad (_("16-bit jump out of range"));
6862 md_number_to_chars (p
, n
, size
);
6865 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
6866 i
.op
[1].imms
, 0, reloc (size
, 0, 0, i
.reloc
[1]));
6867 if (i
.op
[0].imms
->X_op
!= O_constant
)
6868 as_bad (_("can't handle non absolute segment in `%s'"),
6870 md_number_to_chars (p
+ size
, (valueT
) i
.op
[0].imms
->X_add_number
, 2);
6876 fragS
*insn_start_frag
;
6877 offsetT insn_start_off
;
6879 /* Tie dwarf2 debug info to the address at the start of the insn.
6880 We can't do this after the insn has been output as the current
6881 frag may have been closed off. eg. by frag_var. */
6882 dwarf2_emit_insn (0);
6884 insn_start_frag
= frag_now
;
6885 insn_start_off
= frag_now_fix ();
6888 if (i
.tm
.opcode_modifier
.jump
)
6890 else if (i
.tm
.opcode_modifier
.jumpbyte
6891 || i
.tm
.opcode_modifier
.jumpdword
)
6893 else if (i
.tm
.opcode_modifier
.jumpintersegment
)
6894 output_interseg_jump ();
6897 /* Output normal instructions here. */
6901 unsigned int prefix
;
6903 /* Since the VEX/EVEX prefix contains the implicit prefix, we
6904 don't need the explicit prefix. */
6905 if (!i
.tm
.opcode_modifier
.vex
&& !i
.tm
.opcode_modifier
.evex
)
6907 switch (i
.tm
.opcode_length
)
6910 if (i
.tm
.base_opcode
& 0xff000000)
6912 prefix
= (i
.tm
.base_opcode
>> 24) & 0xff;
6917 if ((i
.tm
.base_opcode
& 0xff0000) != 0)
6919 prefix
= (i
.tm
.base_opcode
>> 16) & 0xff;
6920 if (i
.tm
.cpu_flags
.bitfield
.cpupadlock
)
6923 if (prefix
!= REPE_PREFIX_OPCODE
6924 || (i
.prefix
[REP_PREFIX
]
6925 != REPE_PREFIX_OPCODE
))
6926 add_prefix (prefix
);
6929 add_prefix (prefix
);
6938 /* The prefix bytes. */
6939 for (j
= ARRAY_SIZE (i
.prefix
), q
= i
.prefix
; j
> 0; j
--, q
++)
6941 FRAG_APPEND_1_CHAR (*q
);
6945 for (j
= 0, q
= i
.prefix
; j
< ARRAY_SIZE (i
.prefix
); j
++, q
++)
6950 /* REX byte is encoded in VEX prefix. */
6954 FRAG_APPEND_1_CHAR (*q
);
6957 /* There should be no other prefixes for instructions
6962 /* For EVEX instructions i.vrex should become 0 after
6963 build_evex_prefix. For VEX instructions upper 16 registers
6964 aren't available, so VREX should be 0. */
6967 /* Now the VEX prefix. */
6968 p
= frag_more (i
.vex
.length
);
6969 for (j
= 0; j
< i
.vex
.length
; j
++)
6970 p
[j
] = i
.vex
.bytes
[j
];
6973 /* Now the opcode; be careful about word order here! */
6974 if (i
.tm
.opcode_length
== 1)
6976 FRAG_APPEND_1_CHAR (i
.tm
.base_opcode
);
6980 switch (i
.tm
.opcode_length
)
6984 *p
++ = (i
.tm
.base_opcode
>> 24) & 0xff;
6985 *p
++ = (i
.tm
.base_opcode
>> 16) & 0xff;
6989 *p
++ = (i
.tm
.base_opcode
>> 16) & 0xff;
6999 /* Put out high byte first: can't use md_number_to_chars! */
7000 *p
++ = (i
.tm
.base_opcode
>> 8) & 0xff;
7001 *p
= i
.tm
.base_opcode
& 0xff;
7004 /* Now the modrm byte and sib byte (if present). */
7005 if (i
.tm
.opcode_modifier
.modrm
)
7007 FRAG_APPEND_1_CHAR ((i
.rm
.regmem
<< 0
7010 /* If i.rm.regmem == ESP (4)
7011 && i.rm.mode != (Register mode)
7013 ==> need second modrm byte. */
7014 if (i
.rm
.regmem
== ESCAPE_TO_TWO_BYTE_ADDRESSING
7016 && !(i
.base_reg
&& i
.base_reg
->reg_type
.bitfield
.reg16
))
7017 FRAG_APPEND_1_CHAR ((i
.sib
.base
<< 0
7019 | i
.sib
.scale
<< 6));
7022 if (i
.disp_operands
)
7023 output_disp (insn_start_frag
, insn_start_off
);
7026 output_imm (insn_start_frag
, insn_start_off
);
7032 pi ("" /*line*/, &i
);
7034 #endif /* DEBUG386 */
7037 /* Return the size of the displacement operand N. */
7040 disp_size (unsigned int n
)
7044 /* Vec_Disp8 has to be 8bit. */
7045 if (i
.types
[n
].bitfield
.vec_disp8
)
7047 else if (i
.types
[n
].bitfield
.disp64
)
7049 else if (i
.types
[n
].bitfield
.disp8
)
7051 else if (i
.types
[n
].bitfield
.disp16
)
7056 /* Return the size of the immediate operand N. */
7059 imm_size (unsigned int n
)
7062 if (i
.types
[n
].bitfield
.imm64
)
7064 else if (i
.types
[n
].bitfield
.imm8
|| i
.types
[n
].bitfield
.imm8s
)
7066 else if (i
.types
[n
].bitfield
.imm16
)
7072 output_disp (fragS
*insn_start_frag
, offsetT insn_start_off
)
7077 for (n
= 0; n
< i
.operands
; n
++)
7079 if (i
.types
[n
].bitfield
.vec_disp8
7080 || operand_type_check (i
.types
[n
], disp
))
7082 if (i
.op
[n
].disps
->X_op
== O_constant
)
7084 int size
= disp_size (n
);
7085 offsetT val
= i
.op
[n
].disps
->X_add_number
;
7087 if (i
.types
[n
].bitfield
.vec_disp8
)
7089 val
= offset_in_range (val
, size
);
7090 p
= frag_more (size
);
7091 md_number_to_chars (p
, val
, size
);
7095 enum bfd_reloc_code_real reloc_type
;
7096 int size
= disp_size (n
);
7097 int sign
= i
.types
[n
].bitfield
.disp32s
;
7098 int pcrel
= (i
.flags
[n
] & Operand_PCrel
) != 0;
7100 /* We can't have 8 bit displacement here. */
7101 gas_assert (!i
.types
[n
].bitfield
.disp8
);
7103 /* The PC relative address is computed relative
7104 to the instruction boundary, so in case immediate
7105 fields follows, we need to adjust the value. */
7106 if (pcrel
&& i
.imm_operands
)
7111 for (n1
= 0; n1
< i
.operands
; n1
++)
7112 if (operand_type_check (i
.types
[n1
], imm
))
7114 /* Only one immediate is allowed for PC
7115 relative address. */
7116 gas_assert (sz
== 0);
7118 i
.op
[n
].disps
->X_add_number
-= sz
;
7120 /* We should find the immediate. */
7121 gas_assert (sz
!= 0);
7124 p
= frag_more (size
);
7125 reloc_type
= reloc (size
, pcrel
, sign
, i
.reloc
[n
]);
7127 && GOT_symbol
== i
.op
[n
].disps
->X_add_symbol
7128 && (((reloc_type
== BFD_RELOC_32
7129 || reloc_type
== BFD_RELOC_X86_64_32S
7130 || (reloc_type
== BFD_RELOC_64
7132 && (i
.op
[n
].disps
->X_op
== O_symbol
7133 || (i
.op
[n
].disps
->X_op
== O_add
7134 && ((symbol_get_value_expression
7135 (i
.op
[n
].disps
->X_op_symbol
)->X_op
)
7137 || reloc_type
== BFD_RELOC_32_PCREL
))
7141 if (insn_start_frag
== frag_now
)
7142 add
= (p
- frag_now
->fr_literal
) - insn_start_off
;
7147 add
= insn_start_frag
->fr_fix
- insn_start_off
;
7148 for (fr
= insn_start_frag
->fr_next
;
7149 fr
&& fr
!= frag_now
; fr
= fr
->fr_next
)
7151 add
+= p
- frag_now
->fr_literal
;
7156 reloc_type
= BFD_RELOC_386_GOTPC
;
7157 i
.op
[n
].imms
->X_add_number
+= add
;
7159 else if (reloc_type
== BFD_RELOC_64
)
7160 reloc_type
= BFD_RELOC_X86_64_GOTPC64
;
7162 /* Don't do the adjustment for x86-64, as there
7163 the pcrel addressing is relative to the _next_
7164 insn, and that is taken care of in other code. */
7165 reloc_type
= BFD_RELOC_X86_64_GOTPC32
;
7167 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
7168 i
.op
[n
].disps
, pcrel
, reloc_type
);
7175 output_imm (fragS
*insn_start_frag
, offsetT insn_start_off
)
7180 for (n
= 0; n
< i
.operands
; n
++)
7182 /* Skip SAE/RC Imm operand in EVEX. They are already handled. */
7183 if (i
.rounding
&& (int) n
== i
.rounding
->operand
)
7186 if (operand_type_check (i
.types
[n
], imm
))
7188 if (i
.op
[n
].imms
->X_op
== O_constant
)
7190 int size
= imm_size (n
);
7193 val
= offset_in_range (i
.op
[n
].imms
->X_add_number
,
7195 p
= frag_more (size
);
7196 md_number_to_chars (p
, val
, size
);
7200 /* Not absolute_section.
7201 Need a 32-bit fixup (don't support 8bit
7202 non-absolute imms). Try to support other
7204 enum bfd_reloc_code_real reloc_type
;
7205 int size
= imm_size (n
);
7208 if (i
.types
[n
].bitfield
.imm32s
7209 && (i
.suffix
== QWORD_MNEM_SUFFIX
7210 || (!i
.suffix
&& i
.tm
.opcode_modifier
.no_lsuf
)))
7215 p
= frag_more (size
);
7216 reloc_type
= reloc (size
, 0, sign
, i
.reloc
[n
]);
7218 /* This is tough to explain. We end up with this one if we
7219 * have operands that look like
7220 * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to
7221 * obtain the absolute address of the GOT, and it is strongly
7222 * preferable from a performance point of view to avoid using
7223 * a runtime relocation for this. The actual sequence of
7224 * instructions often look something like:
7229 * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx
7231 * The call and pop essentially return the absolute address
7232 * of the label .L66 and store it in %ebx. The linker itself
7233 * will ultimately change the first operand of the addl so
7234 * that %ebx points to the GOT, but to keep things simple, the
7235 * .o file must have this operand set so that it generates not
7236 * the absolute address of .L66, but the absolute address of
7237 * itself. This allows the linker itself simply treat a GOTPC
7238 * relocation as asking for a pcrel offset to the GOT to be
7239 * added in, and the addend of the relocation is stored in the
7240 * operand field for the instruction itself.
7242 * Our job here is to fix the operand so that it would add
7243 * the correct offset so that %ebx would point to itself. The
7244 * thing that is tricky is that .-.L66 will point to the
7245 * beginning of the instruction, so we need to further modify
7246 * the operand so that it will point to itself. There are
7247 * other cases where you have something like:
7249 * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66]
7251 * and here no correction would be required. Internally in
7252 * the assembler we treat operands of this form as not being
7253 * pcrel since the '.' is explicitly mentioned, and I wonder
7254 * whether it would simplify matters to do it this way. Who
7255 * knows. In earlier versions of the PIC patches, the
7256 * pcrel_adjust field was used to store the correction, but
7257 * since the expression is not pcrel, I felt it would be
7258 * confusing to do it this way. */
7260 if ((reloc_type
== BFD_RELOC_32
7261 || reloc_type
== BFD_RELOC_X86_64_32S
7262 || reloc_type
== BFD_RELOC_64
)
7264 && GOT_symbol
== i
.op
[n
].imms
->X_add_symbol
7265 && (i
.op
[n
].imms
->X_op
== O_symbol
7266 || (i
.op
[n
].imms
->X_op
== O_add
7267 && ((symbol_get_value_expression
7268 (i
.op
[n
].imms
->X_op_symbol
)->X_op
)
7273 if (insn_start_frag
== frag_now
)
7274 add
= (p
- frag_now
->fr_literal
) - insn_start_off
;
7279 add
= insn_start_frag
->fr_fix
- insn_start_off
;
7280 for (fr
= insn_start_frag
->fr_next
;
7281 fr
&& fr
!= frag_now
; fr
= fr
->fr_next
)
7283 add
+= p
- frag_now
->fr_literal
;
7287 reloc_type
= BFD_RELOC_386_GOTPC
;
7289 reloc_type
= BFD_RELOC_X86_64_GOTPC32
;
7291 reloc_type
= BFD_RELOC_X86_64_GOTPC64
;
7292 i
.op
[n
].imms
->X_add_number
+= add
;
7294 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
7295 i
.op
[n
].imms
, 0, reloc_type
);
7301 /* x86_cons_fix_new is called via the expression parsing code when a
7302 reloc is needed. We use this hook to get the correct .got reloc. */
7303 static enum bfd_reloc_code_real got_reloc
= NO_RELOC
;
7304 static int cons_sign
= -1;
7307 x86_cons_fix_new (fragS
*frag
, unsigned int off
, unsigned int len
,
7310 enum bfd_reloc_code_real r
= reloc (len
, 0, cons_sign
, got_reloc
);
7312 got_reloc
= NO_RELOC
;
7315 if (exp
->X_op
== O_secrel
)
7317 exp
->X_op
= O_symbol
;
7318 r
= BFD_RELOC_32_SECREL
;
7322 fix_new_exp (frag
, off
, len
, exp
, 0, r
);
7325 /* Export the ABI address size for use by TC_ADDRESS_BYTES for the
7326 purpose of the `.dc.a' internal pseudo-op. */
7329 x86_address_bytes (void)
7331 if ((stdoutput
->arch_info
->mach
& bfd_mach_x64_32
))
7333 return stdoutput
->arch_info
->bits_per_address
/ 8;
7336 #if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \
7338 # define lex_got(reloc, adjust, types) NULL
7340 /* Parse operands of the form
7341 <symbol>@GOTOFF+<nnn>
7342 and similar .plt or .got references.
7344 If we find one, set up the correct relocation in RELOC and copy the
7345 input string, minus the `@GOTOFF' into a malloc'd buffer for
7346 parsing by the calling routine. Return this buffer, and if ADJUST
7347 is non-null set it to the length of the string we removed from the
7348 input line. Otherwise return NULL. */
7350 lex_got (enum bfd_reloc_code_real
*rel
,
7352 i386_operand_type
*types
)
7354 /* Some of the relocations depend on the size of what field is to
7355 be relocated. But in our callers i386_immediate and i386_displacement
7356 we don't yet know the operand size (this will be set by insn
7357 matching). Hence we record the word32 relocation here,
7358 and adjust the reloc according to the real size in reloc(). */
7359 static const struct {
7362 const enum bfd_reloc_code_real rel
[2];
7363 const i386_operand_type types64
;
7365 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
7366 { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32
,
7368 OPERAND_TYPE_IMM32_64
},
7370 { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real
,
7371 BFD_RELOC_X86_64_PLTOFF64
},
7372 OPERAND_TYPE_IMM64
},
7373 { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32
,
7374 BFD_RELOC_X86_64_PLT32
},
7375 OPERAND_TYPE_IMM32_32S_DISP32
},
7376 { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real
,
7377 BFD_RELOC_X86_64_GOTPLT64
},
7378 OPERAND_TYPE_IMM64_DISP64
},
7379 { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF
,
7380 BFD_RELOC_X86_64_GOTOFF64
},
7381 OPERAND_TYPE_IMM64_DISP64
},
7382 { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real
,
7383 BFD_RELOC_X86_64_GOTPCREL
},
7384 OPERAND_TYPE_IMM32_32S_DISP32
},
7385 { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD
,
7386 BFD_RELOC_X86_64_TLSGD
},
7387 OPERAND_TYPE_IMM32_32S_DISP32
},
7388 { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM
,
7389 _dummy_first_bfd_reloc_code_real
},
7390 OPERAND_TYPE_NONE
},
7391 { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real
,
7392 BFD_RELOC_X86_64_TLSLD
},
7393 OPERAND_TYPE_IMM32_32S_DISP32
},
7394 { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32
,
7395 BFD_RELOC_X86_64_GOTTPOFF
},
7396 OPERAND_TYPE_IMM32_32S_DISP32
},
7397 { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32
,
7398 BFD_RELOC_X86_64_TPOFF32
},
7399 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
7400 { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE
,
7401 _dummy_first_bfd_reloc_code_real
},
7402 OPERAND_TYPE_NONE
},
7403 { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32
,
7404 BFD_RELOC_X86_64_DTPOFF32
},
7405 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
7406 { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE
,
7407 _dummy_first_bfd_reloc_code_real
},
7408 OPERAND_TYPE_NONE
},
7409 { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE
,
7410 _dummy_first_bfd_reloc_code_real
},
7411 OPERAND_TYPE_NONE
},
7412 { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32
,
7413 BFD_RELOC_X86_64_GOT32
},
7414 OPERAND_TYPE_IMM32_32S_64_DISP32
},
7415 { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC
,
7416 BFD_RELOC_X86_64_GOTPC32_TLSDESC
},
7417 OPERAND_TYPE_IMM32_32S_DISP32
},
7418 { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL
,
7419 BFD_RELOC_X86_64_TLSDESC_CALL
},
7420 OPERAND_TYPE_IMM32_32S_DISP32
},
7425 #if defined (OBJ_MAYBE_ELF)
7430 for (cp
= input_line_pointer
; *cp
!= '@'; cp
++)
7431 if (is_end_of_line
[(unsigned char) *cp
] || *cp
== ',')
7434 for (j
= 0; j
< ARRAY_SIZE (gotrel
); j
++)
7436 int len
= gotrel
[j
].len
;
7437 if (strncasecmp (cp
+ 1, gotrel
[j
].str
, len
) == 0)
7439 if (gotrel
[j
].rel
[object_64bit
] != 0)
7442 char *tmpbuf
, *past_reloc
;
7444 *rel
= gotrel
[j
].rel
[object_64bit
];
7448 if (flag_code
!= CODE_64BIT
)
7450 types
->bitfield
.imm32
= 1;
7451 types
->bitfield
.disp32
= 1;
7454 *types
= gotrel
[j
].types64
;
7457 if (j
!= 0 && GOT_symbol
== NULL
)
7458 GOT_symbol
= symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME
);
7460 /* The length of the first part of our input line. */
7461 first
= cp
- input_line_pointer
;
7463 /* The second part goes from after the reloc token until
7464 (and including) an end_of_line char or comma. */
7465 past_reloc
= cp
+ 1 + len
;
7467 while (!is_end_of_line
[(unsigned char) *cp
] && *cp
!= ',')
7469 second
= cp
+ 1 - past_reloc
;
7471 /* Allocate and copy string. The trailing NUL shouldn't
7472 be necessary, but be safe. */
7473 tmpbuf
= (char *) xmalloc (first
+ second
+ 2);
7474 memcpy (tmpbuf
, input_line_pointer
, first
);
7475 if (second
!= 0 && *past_reloc
!= ' ')
7476 /* Replace the relocation token with ' ', so that
7477 errors like foo@GOTOFF1 will be detected. */
7478 tmpbuf
[first
++] = ' ';
7480 /* Increment length by 1 if the relocation token is
7485 memcpy (tmpbuf
+ first
, past_reloc
, second
);
7486 tmpbuf
[first
+ second
] = '\0';
7490 as_bad (_("@%s reloc is not supported with %d-bit output format"),
7491 gotrel
[j
].str
, 1 << (5 + object_64bit
));
7496 /* Might be a symbol version string. Don't as_bad here. */
7505 /* Parse operands of the form
7506 <symbol>@SECREL32+<nnn>
7508 If we find one, set up the correct relocation in RELOC and copy the
7509 input string, minus the `@SECREL32' into a malloc'd buffer for
7510 parsing by the calling routine. Return this buffer, and if ADJUST
7511 is non-null set it to the length of the string we removed from the
7512 input line. Otherwise return NULL.
7514 This function is copied from the ELF version above adjusted for PE targets. */
7517 lex_got (enum bfd_reloc_code_real
*rel ATTRIBUTE_UNUSED
,
7518 int *adjust ATTRIBUTE_UNUSED
,
7519 i386_operand_type
*types ATTRIBUTE_UNUSED
)
7525 const enum bfd_reloc_code_real rel
[2];
7526 const i386_operand_type types64
;
7530 { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL
,
7531 BFD_RELOC_32_SECREL
},
7532 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
7538 for (cp
= input_line_pointer
; *cp
!= '@'; cp
++)
7539 if (is_end_of_line
[(unsigned char) *cp
] || *cp
== ',')
7542 for (j
= 0; j
< ARRAY_SIZE (gotrel
); j
++)
7544 int len
= gotrel
[j
].len
;
7546 if (strncasecmp (cp
+ 1, gotrel
[j
].str
, len
) == 0)
7548 if (gotrel
[j
].rel
[object_64bit
] != 0)
7551 char *tmpbuf
, *past_reloc
;
7553 *rel
= gotrel
[j
].rel
[object_64bit
];
7559 if (flag_code
!= CODE_64BIT
)
7561 types
->bitfield
.imm32
= 1;
7562 types
->bitfield
.disp32
= 1;
7565 *types
= gotrel
[j
].types64
;
7568 /* The length of the first part of our input line. */
7569 first
= cp
- input_line_pointer
;
7571 /* The second part goes from after the reloc token until
7572 (and including) an end_of_line char or comma. */
7573 past_reloc
= cp
+ 1 + len
;
7575 while (!is_end_of_line
[(unsigned char) *cp
] && *cp
!= ',')
7577 second
= cp
+ 1 - past_reloc
;
7579 /* Allocate and copy string. The trailing NUL shouldn't
7580 be necessary, but be safe. */
7581 tmpbuf
= (char *) xmalloc (first
+ second
+ 2);
7582 memcpy (tmpbuf
, input_line_pointer
, first
);
7583 if (second
!= 0 && *past_reloc
!= ' ')
7584 /* Replace the relocation token with ' ', so that
7585 errors like foo@SECLREL321 will be detected. */
7586 tmpbuf
[first
++] = ' ';
7587 memcpy (tmpbuf
+ first
, past_reloc
, second
);
7588 tmpbuf
[first
+ second
] = '\0';
7592 as_bad (_("@%s reloc is not supported with %d-bit output format"),
7593 gotrel
[j
].str
, 1 << (5 + object_64bit
));
7598 /* Might be a symbol version string. Don't as_bad here. */
7605 x86_cons (expressionS
*exp
, int size
)
7607 intel_syntax
= -intel_syntax
;
7610 if (size
== 4 || (object_64bit
&& size
== 8))
7612 /* Handle @GOTOFF and the like in an expression. */
7614 char *gotfree_input_line
;
7617 save
= input_line_pointer
;
7618 gotfree_input_line
= lex_got (&got_reloc
, &adjust
, NULL
);
7619 if (gotfree_input_line
)
7620 input_line_pointer
= gotfree_input_line
;
7624 if (gotfree_input_line
)
7626 /* expression () has merrily parsed up to the end of line,
7627 or a comma - in the wrong buffer. Transfer how far
7628 input_line_pointer has moved to the right buffer. */
7629 input_line_pointer
= (save
7630 + (input_line_pointer
- gotfree_input_line
)
7632 free (gotfree_input_line
);
7633 if (exp
->X_op
== O_constant
7634 || exp
->X_op
== O_absent
7635 || exp
->X_op
== O_illegal
7636 || exp
->X_op
== O_register
7637 || exp
->X_op
== O_big
)
7639 char c
= *input_line_pointer
;
7640 *input_line_pointer
= 0;
7641 as_bad (_("missing or invalid expression `%s'"), save
);
7642 *input_line_pointer
= c
;
7649 intel_syntax
= -intel_syntax
;
7652 i386_intel_simplify (exp
);
7656 signed_cons (int size
)
7658 if (flag_code
== CODE_64BIT
)
7666 pe_directive_secrel (int dummy ATTRIBUTE_UNUSED
)
7673 if (exp
.X_op
== O_symbol
)
7674 exp
.X_op
= O_secrel
;
7676 emit_expr (&exp
, 4);
7678 while (*input_line_pointer
++ == ',');
7680 input_line_pointer
--;
7681 demand_empty_rest_of_line ();
7685 /* Handle Vector operations. */
7688 check_VecOperations (char *op_string
, char *op_end
)
7690 const reg_entry
*mask
;
7695 && (op_end
== NULL
|| op_string
< op_end
))
7698 if (*op_string
== '{')
7702 /* Check broadcasts. */
7703 if (strncmp (op_string
, "1to", 3) == 0)
7708 goto duplicated_vec_op
;
7711 if (*op_string
== '8')
7712 bcst_type
= BROADCAST_1TO8
;
7713 else if (*op_string
== '1'
7714 && *(op_string
+1) == '6')
7716 bcst_type
= BROADCAST_1TO16
;
7721 as_bad (_("Unsupported broadcast: `%s'"), saved
);
7726 broadcast_op
.type
= bcst_type
;
7727 broadcast_op
.operand
= this_operand
;
7728 i
.broadcast
= &broadcast_op
;
7730 /* Check masking operation. */
7731 else if ((mask
= parse_register (op_string
, &end_op
)) != NULL
)
7733 /* k0 can't be used for write mask. */
7734 if (mask
->reg_num
== 0)
7736 as_bad (_("`%s' can't be used for write mask"),
7743 mask_op
.mask
= mask
;
7744 mask_op
.zeroing
= 0;
7745 mask_op
.operand
= this_operand
;
7751 goto duplicated_vec_op
;
7753 i
.mask
->mask
= mask
;
7755 /* Only "{z}" is allowed here. No need to check
7756 zeroing mask explicitly. */
7757 if (i
.mask
->operand
!= this_operand
)
7759 as_bad (_("invalid write mask `%s'"), saved
);
7766 /* Check zeroing-flag for masking operation. */
7767 else if (*op_string
== 'z')
7771 mask_op
.mask
= NULL
;
7772 mask_op
.zeroing
= 1;
7773 mask_op
.operand
= this_operand
;
7778 if (i
.mask
->zeroing
)
7781 as_bad (_("duplicated `%s'"), saved
);
7785 i
.mask
->zeroing
= 1;
7787 /* Only "{%k}" is allowed here. No need to check mask
7788 register explicitly. */
7789 if (i
.mask
->operand
!= this_operand
)
7791 as_bad (_("invalid zeroing-masking `%s'"),
7800 goto unknown_vec_op
;
7802 if (*op_string
!= '}')
7804 as_bad (_("missing `}' in `%s'"), saved
);
7811 /* We don't know this one. */
7812 as_bad (_("unknown vector operation: `%s'"), saved
);
7820 i386_immediate (char *imm_start
)
7822 char *save_input_line_pointer
;
7823 char *gotfree_input_line
;
7826 i386_operand_type types
;
7828 operand_type_set (&types
, ~0);
7830 if (i
.imm_operands
== MAX_IMMEDIATE_OPERANDS
)
7832 as_bad (_("at most %d immediate operands are allowed"),
7833 MAX_IMMEDIATE_OPERANDS
);
7837 exp
= &im_expressions
[i
.imm_operands
++];
7838 i
.op
[this_operand
].imms
= exp
;
7840 if (is_space_char (*imm_start
))
7843 save_input_line_pointer
= input_line_pointer
;
7844 input_line_pointer
= imm_start
;
7846 gotfree_input_line
= lex_got (&i
.reloc
[this_operand
], NULL
, &types
);
7847 if (gotfree_input_line
)
7848 input_line_pointer
= gotfree_input_line
;
7850 exp_seg
= expression (exp
);
7854 /* Handle vector operations. */
7855 if (*input_line_pointer
== '{')
7857 input_line_pointer
= check_VecOperations (input_line_pointer
,
7859 if (input_line_pointer
== NULL
)
7863 if (*input_line_pointer
)
7864 as_bad (_("junk `%s' after expression"), input_line_pointer
);
7866 input_line_pointer
= save_input_line_pointer
;
7867 if (gotfree_input_line
)
7869 free (gotfree_input_line
);
7871 if (exp
->X_op
== O_constant
|| exp
->X_op
== O_register
)
7872 exp
->X_op
= O_illegal
;
7875 return i386_finalize_immediate (exp_seg
, exp
, types
, imm_start
);
7879 i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED
, expressionS
*exp
,
7880 i386_operand_type types
, const char *imm_start
)
7882 if (exp
->X_op
== O_absent
|| exp
->X_op
== O_illegal
|| exp
->X_op
== O_big
)
7885 as_bad (_("missing or invalid immediate expression `%s'"),
7889 else if (exp
->X_op
== O_constant
)
7891 /* Size it properly later. */
7892 i
.types
[this_operand
].bitfield
.imm64
= 1;
7893 /* If not 64bit, sign extend val. */
7894 if (flag_code
!= CODE_64BIT
7895 && (exp
->X_add_number
& ~(((addressT
) 2 << 31) - 1)) == 0)
7897 = (exp
->X_add_number
^ ((addressT
) 1 << 31)) - ((addressT
) 1 << 31);
7899 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
7900 else if (OUTPUT_FLAVOR
== bfd_target_aout_flavour
7901 && exp_seg
!= absolute_section
7902 && exp_seg
!= text_section
7903 && exp_seg
!= data_section
7904 && exp_seg
!= bss_section
7905 && exp_seg
!= undefined_section
7906 && !bfd_is_com_section (exp_seg
))
7908 as_bad (_("unimplemented segment %s in operand"), exp_seg
->name
);
7912 else if (!intel_syntax
&& exp
->X_op
== O_register
)
7915 as_bad (_("illegal immediate register operand %s"), imm_start
);
7920 /* This is an address. The size of the address will be
7921 determined later, depending on destination register,
7922 suffix, or the default for the section. */
7923 i
.types
[this_operand
].bitfield
.imm8
= 1;
7924 i
.types
[this_operand
].bitfield
.imm16
= 1;
7925 i
.types
[this_operand
].bitfield
.imm32
= 1;
7926 i
.types
[this_operand
].bitfield
.imm32s
= 1;
7927 i
.types
[this_operand
].bitfield
.imm64
= 1;
7928 i
.types
[this_operand
] = operand_type_and (i
.types
[this_operand
],
7936 i386_scale (char *scale
)
7939 char *save
= input_line_pointer
;
7941 input_line_pointer
= scale
;
7942 val
= get_absolute_expression ();
7947 i
.log2_scale_factor
= 0;
7950 i
.log2_scale_factor
= 1;
7953 i
.log2_scale_factor
= 2;
7956 i
.log2_scale_factor
= 3;
7960 char sep
= *input_line_pointer
;
7962 *input_line_pointer
= '\0';
7963 as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"),
7965 *input_line_pointer
= sep
;
7966 input_line_pointer
= save
;
7970 if (i
.log2_scale_factor
!= 0 && i
.index_reg
== 0)
7972 as_warn (_("scale factor of %d without an index register"),
7973 1 << i
.log2_scale_factor
);
7974 i
.log2_scale_factor
= 0;
7976 scale
= input_line_pointer
;
7977 input_line_pointer
= save
;
7982 i386_displacement (char *disp_start
, char *disp_end
)
7986 char *save_input_line_pointer
;
7987 char *gotfree_input_line
;
7989 i386_operand_type bigdisp
, types
= anydisp
;
7992 if (i
.disp_operands
== MAX_MEMORY_OPERANDS
)
7994 as_bad (_("at most %d displacement operands are allowed"),
7995 MAX_MEMORY_OPERANDS
);
7999 operand_type_set (&bigdisp
, 0);
8000 if ((i
.types
[this_operand
].bitfield
.jumpabsolute
)
8001 || (!current_templates
->start
->opcode_modifier
.jump
8002 && !current_templates
->start
->opcode_modifier
.jumpdword
))
8004 bigdisp
.bitfield
.disp32
= 1;
8005 override
= (i
.prefix
[ADDR_PREFIX
] != 0);
8006 if (flag_code
== CODE_64BIT
)
8010 bigdisp
.bitfield
.disp32s
= 1;
8011 bigdisp
.bitfield
.disp64
= 1;
8014 else if ((flag_code
== CODE_16BIT
) ^ override
)
8016 bigdisp
.bitfield
.disp32
= 0;
8017 bigdisp
.bitfield
.disp16
= 1;
8022 /* For PC-relative branches, the width of the displacement
8023 is dependent upon data size, not address size. */
8024 override
= (i
.prefix
[DATA_PREFIX
] != 0);
8025 if (flag_code
== CODE_64BIT
)
8027 if (override
|| i
.suffix
== WORD_MNEM_SUFFIX
)
8028 bigdisp
.bitfield
.disp16
= 1;
8031 bigdisp
.bitfield
.disp32
= 1;
8032 bigdisp
.bitfield
.disp32s
= 1;
8038 override
= (i
.suffix
== (flag_code
!= CODE_16BIT
8040 : LONG_MNEM_SUFFIX
));
8041 bigdisp
.bitfield
.disp32
= 1;
8042 if ((flag_code
== CODE_16BIT
) ^ override
)
8044 bigdisp
.bitfield
.disp32
= 0;
8045 bigdisp
.bitfield
.disp16
= 1;
8049 i
.types
[this_operand
] = operand_type_or (i
.types
[this_operand
],
8052 exp
= &disp_expressions
[i
.disp_operands
];
8053 i
.op
[this_operand
].disps
= exp
;
8055 save_input_line_pointer
= input_line_pointer
;
8056 input_line_pointer
= disp_start
;
8057 END_STRING_AND_SAVE (disp_end
);
8059 #ifndef GCC_ASM_O_HACK
8060 #define GCC_ASM_O_HACK 0
8063 END_STRING_AND_SAVE (disp_end
+ 1);
8064 if (i
.types
[this_operand
].bitfield
.baseIndex
8065 && displacement_string_end
[-1] == '+')
8067 /* This hack is to avoid a warning when using the "o"
8068 constraint within gcc asm statements.
8071 #define _set_tssldt_desc(n,addr,limit,type) \
8072 __asm__ __volatile__ ( \
8074 "movw %w1,2+%0\n\t" \
8076 "movb %b1,4+%0\n\t" \
8077 "movb %4,5+%0\n\t" \
8078 "movb $0,6+%0\n\t" \
8079 "movb %h1,7+%0\n\t" \
8081 : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type))
8083 This works great except that the output assembler ends
8084 up looking a bit weird if it turns out that there is
8085 no offset. You end up producing code that looks like:
8098 So here we provide the missing zero. */
8100 *displacement_string_end
= '0';
8103 gotfree_input_line
= lex_got (&i
.reloc
[this_operand
], NULL
, &types
);
8104 if (gotfree_input_line
)
8105 input_line_pointer
= gotfree_input_line
;
8107 exp_seg
= expression (exp
);
8110 if (*input_line_pointer
)
8111 as_bad (_("junk `%s' after expression"), input_line_pointer
);
8113 RESTORE_END_STRING (disp_end
+ 1);
8115 input_line_pointer
= save_input_line_pointer
;
8116 if (gotfree_input_line
)
8118 free (gotfree_input_line
);
8120 if (exp
->X_op
== O_constant
|| exp
->X_op
== O_register
)
8121 exp
->X_op
= O_illegal
;
8124 ret
= i386_finalize_displacement (exp_seg
, exp
, types
, disp_start
);
8126 RESTORE_END_STRING (disp_end
);
8132 i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED
, expressionS
*exp
,
8133 i386_operand_type types
, const char *disp_start
)
8135 i386_operand_type bigdisp
;
8138 /* We do this to make sure that the section symbol is in
8139 the symbol table. We will ultimately change the relocation
8140 to be relative to the beginning of the section. */
8141 if (i
.reloc
[this_operand
] == BFD_RELOC_386_GOTOFF
8142 || i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTPCREL
8143 || i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTOFF64
)
8145 if (exp
->X_op
!= O_symbol
)
8148 if (S_IS_LOCAL (exp
->X_add_symbol
)
8149 && S_GET_SEGMENT (exp
->X_add_symbol
) != undefined_section
8150 && S_GET_SEGMENT (exp
->X_add_symbol
) != expr_section
)
8151 section_symbol (S_GET_SEGMENT (exp
->X_add_symbol
));
8152 exp
->X_op
= O_subtract
;
8153 exp
->X_op_symbol
= GOT_symbol
;
8154 if (i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTPCREL
)
8155 i
.reloc
[this_operand
] = BFD_RELOC_32_PCREL
;
8156 else if (i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTOFF64
)
8157 i
.reloc
[this_operand
] = BFD_RELOC_64
;
8159 i
.reloc
[this_operand
] = BFD_RELOC_32
;
8162 else if (exp
->X_op
== O_absent
8163 || exp
->X_op
== O_illegal
8164 || exp
->X_op
== O_big
)
8167 as_bad (_("missing or invalid displacement expression `%s'"),
8172 else if (flag_code
== CODE_64BIT
8173 && !i
.prefix
[ADDR_PREFIX
]
8174 && exp
->X_op
== O_constant
)
8176 /* Since displacement is signed extended to 64bit, don't allow
8177 disp32 and turn off disp32s if they are out of range. */
8178 i
.types
[this_operand
].bitfield
.disp32
= 0;
8179 if (!fits_in_signed_long (exp
->X_add_number
))
8181 i
.types
[this_operand
].bitfield
.disp32s
= 0;
8182 if (i
.types
[this_operand
].bitfield
.baseindex
)
8184 as_bad (_("0x%lx out range of signed 32bit displacement"),
8185 (long) exp
->X_add_number
);
8191 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
8192 else if (exp
->X_op
!= O_constant
8193 && OUTPUT_FLAVOR
== bfd_target_aout_flavour
8194 && exp_seg
!= absolute_section
8195 && exp_seg
!= text_section
8196 && exp_seg
!= data_section
8197 && exp_seg
!= bss_section
8198 && exp_seg
!= undefined_section
8199 && !bfd_is_com_section (exp_seg
))
8201 as_bad (_("unimplemented segment %s in operand"), exp_seg
->name
);
8206 /* Check if this is a displacement only operand. */
8207 bigdisp
= i
.types
[this_operand
];
8208 bigdisp
.bitfield
.disp8
= 0;
8209 bigdisp
.bitfield
.disp16
= 0;
8210 bigdisp
.bitfield
.disp32
= 0;
8211 bigdisp
.bitfield
.disp32s
= 0;
8212 bigdisp
.bitfield
.disp64
= 0;
8213 if (operand_type_all_zero (&bigdisp
))
8214 i
.types
[this_operand
] = operand_type_and (i
.types
[this_operand
],
8220 /* Make sure the memory operand we've been dealt is valid.
8221 Return 1 on success, 0 on a failure. */
8224 i386_index_check (const char *operand_string
)
8226 const char *kind
= "base/index";
8227 enum flag_code addr_mode
;
8229 if (i
.prefix
[ADDR_PREFIX
])
8230 addr_mode
= flag_code
== CODE_32BIT
? CODE_16BIT
: CODE_32BIT
;
8233 addr_mode
= flag_code
;
8235 #if INFER_ADDR_PREFIX
8236 if (i
.mem_operands
== 0)
8238 /* Infer address prefix from the first memory operand. */
8239 const reg_entry
*addr_reg
= i
.base_reg
;
8241 if (addr_reg
== NULL
)
8242 addr_reg
= i
.index_reg
;
8246 if (addr_reg
->reg_num
== RegEip
8247 || addr_reg
->reg_num
== RegEiz
8248 || addr_reg
->reg_type
.bitfield
.reg32
)
8249 addr_mode
= CODE_32BIT
;
8250 else if (flag_code
!= CODE_64BIT
8251 && addr_reg
->reg_type
.bitfield
.reg16
)
8252 addr_mode
= CODE_16BIT
;
8254 if (addr_mode
!= flag_code
)
8256 i
.prefix
[ADDR_PREFIX
] = ADDR_PREFIX_OPCODE
;
8258 /* Change the size of any displacement too. At most one
8259 of Disp16 or Disp32 is set.
8260 FIXME. There doesn't seem to be any real need for
8261 separate Disp16 and Disp32 flags. The same goes for
8262 Imm16 and Imm32. Removing them would probably clean
8263 up the code quite a lot. */
8264 if (flag_code
!= CODE_64BIT
8265 && (i
.types
[this_operand
].bitfield
.disp16
8266 || i
.types
[this_operand
].bitfield
.disp32
))
8267 i
.types
[this_operand
]
8268 = operand_type_xor (i
.types
[this_operand
], disp16_32
);
8275 if (current_templates
->start
->opcode_modifier
.isstring
8276 && !current_templates
->start
->opcode_modifier
.immext
8277 && (current_templates
->end
[-1].opcode_modifier
.isstring
8280 /* Memory operands of string insns are special in that they only allow
8281 a single register (rDI, rSI, or rBX) as their memory address. */
8282 const reg_entry
*expected_reg
;
8283 static const char *di_si
[][2] =
8289 static const char *bx
[] = { "ebx", "bx", "rbx" };
8291 kind
= "string address";
8293 if (current_templates
->start
->opcode_modifier
.w
)
8295 i386_operand_type type
= current_templates
->end
[-1].operand_types
[0];
8297 if (!type
.bitfield
.baseindex
8298 || ((!i
.mem_operands
!= !intel_syntax
)
8299 && current_templates
->end
[-1].operand_types
[1]
8300 .bitfield
.baseindex
))
8301 type
= current_templates
->end
[-1].operand_types
[1];
8302 expected_reg
= hash_find (reg_hash
,
8303 di_si
[addr_mode
][type
.bitfield
.esseg
]);
8307 expected_reg
= hash_find (reg_hash
, bx
[addr_mode
]);
8309 if (i
.base_reg
!= expected_reg
8311 || operand_type_check (i
.types
[this_operand
], disp
))
8313 /* The second memory operand must have the same size as
8317 && !((addr_mode
== CODE_64BIT
8318 && i
.base_reg
->reg_type
.bitfield
.reg64
)
8319 || (addr_mode
== CODE_32BIT
8320 ? i
.base_reg
->reg_type
.bitfield
.reg32
8321 : i
.base_reg
->reg_type
.bitfield
.reg16
)))
8324 as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"),
8326 intel_syntax
? '[' : '(',
8328 expected_reg
->reg_name
,
8329 intel_syntax
? ']' : ')');
8336 as_bad (_("`%s' is not a valid %s expression"),
8337 operand_string
, kind
);
8342 if (addr_mode
!= CODE_16BIT
)
8344 /* 32-bit/64-bit checks. */
8346 && (addr_mode
== CODE_64BIT
8347 ? !i
.base_reg
->reg_type
.bitfield
.reg64
8348 : !i
.base_reg
->reg_type
.bitfield
.reg32
)
8350 || (i
.base_reg
->reg_num
8351 != (addr_mode
== CODE_64BIT
? RegRip
: RegEip
))))
8353 && !i
.index_reg
->reg_type
.bitfield
.regxmm
8354 && !i
.index_reg
->reg_type
.bitfield
.regymm
8355 && !i
.index_reg
->reg_type
.bitfield
.regzmm
8356 && ((addr_mode
== CODE_64BIT
8357 ? !(i
.index_reg
->reg_type
.bitfield
.reg64
8358 || i
.index_reg
->reg_num
== RegRiz
)
8359 : !(i
.index_reg
->reg_type
.bitfield
.reg32
8360 || i
.index_reg
->reg_num
== RegEiz
))
8361 || !i
.index_reg
->reg_type
.bitfield
.baseindex
)))
8366 /* 16-bit checks. */
8368 && (!i
.base_reg
->reg_type
.bitfield
.reg16
8369 || !i
.base_reg
->reg_type
.bitfield
.baseindex
))
8371 && (!i
.index_reg
->reg_type
.bitfield
.reg16
8372 || !i
.index_reg
->reg_type
.bitfield
.baseindex
8374 && i
.base_reg
->reg_num
< 6
8375 && i
.index_reg
->reg_num
>= 6
8376 && i
.log2_scale_factor
== 0))))
8383 /* Handle vector immediates. */
8386 RC_SAE_immediate (const char *imm_start
)
8388 unsigned int match_found
, j
;
8389 const char *pstr
= imm_start
;
8397 for (j
= 0; j
< ARRAY_SIZE (RC_NamesTable
); j
++)
8399 if (!strncmp (pstr
, RC_NamesTable
[j
].name
, RC_NamesTable
[j
].len
))
8403 rc_op
.type
= RC_NamesTable
[j
].type
;
8404 rc_op
.operand
= this_operand
;
8405 i
.rounding
= &rc_op
;
8409 as_bad (_("duplicated `%s'"), imm_start
);
8412 pstr
+= RC_NamesTable
[j
].len
;
8422 as_bad (_("Missing '}': '%s'"), imm_start
);
8425 /* RC/SAE immediate string should contain nothing more. */;
8428 as_bad (_("Junk after '}': '%s'"), imm_start
);
8432 exp
= &im_expressions
[i
.imm_operands
++];
8433 i
.op
[this_operand
].imms
= exp
;
8435 exp
->X_op
= O_constant
;
8436 exp
->X_add_number
= 0;
8437 exp
->X_add_symbol
= (symbolS
*) 0;
8438 exp
->X_op_symbol
= (symbolS
*) 0;
8440 i
.types
[this_operand
].bitfield
.imm8
= 1;
8444 /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero
8448 i386_att_operand (char *operand_string
)
8452 char *op_string
= operand_string
;
8454 if (is_space_char (*op_string
))
8457 /* We check for an absolute prefix (differentiating,
8458 for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */
8459 if (*op_string
== ABSOLUTE_PREFIX
)
8462 if (is_space_char (*op_string
))
8464 i
.types
[this_operand
].bitfield
.jumpabsolute
= 1;
8467 /* Check if operand is a register. */
8468 if ((r
= parse_register (op_string
, &end_op
)) != NULL
)
8470 i386_operand_type temp
;
8472 /* Check for a segment override by searching for ':' after a
8473 segment register. */
8475 if (is_space_char (*op_string
))
8477 if (*op_string
== ':'
8478 && (r
->reg_type
.bitfield
.sreg2
8479 || r
->reg_type
.bitfield
.sreg3
))
8484 i
.seg
[i
.mem_operands
] = &es
;
8487 i
.seg
[i
.mem_operands
] = &cs
;
8490 i
.seg
[i
.mem_operands
] = &ss
;
8493 i
.seg
[i
.mem_operands
] = &ds
;
8496 i
.seg
[i
.mem_operands
] = &fs
;
8499 i
.seg
[i
.mem_operands
] = &gs
;
8503 /* Skip the ':' and whitespace. */
8505 if (is_space_char (*op_string
))
8508 if (!is_digit_char (*op_string
)
8509 && !is_identifier_char (*op_string
)
8510 && *op_string
!= '('
8511 && *op_string
!= ABSOLUTE_PREFIX
)
8513 as_bad (_("bad memory operand `%s'"), op_string
);
8516 /* Handle case of %es:*foo. */
8517 if (*op_string
== ABSOLUTE_PREFIX
)
8520 if (is_space_char (*op_string
))
8522 i
.types
[this_operand
].bitfield
.jumpabsolute
= 1;
8524 goto do_memory_reference
;
8527 /* Handle vector operations. */
8528 if (*op_string
== '{')
8530 op_string
= check_VecOperations (op_string
, NULL
);
8531 if (op_string
== NULL
)
8537 as_bad (_("junk `%s' after register"), op_string
);
8541 temp
.bitfield
.baseindex
= 0;
8542 i
.types
[this_operand
] = operand_type_or (i
.types
[this_operand
],
8544 i
.types
[this_operand
].bitfield
.unspecified
= 0;
8545 i
.op
[this_operand
].regs
= r
;
8548 else if (*op_string
== REGISTER_PREFIX
)
8550 as_bad (_("bad register name `%s'"), op_string
);
8553 else if (*op_string
== IMMEDIATE_PREFIX
)
8556 if (i
.types
[this_operand
].bitfield
.jumpabsolute
)
8558 as_bad (_("immediate operand illegal with absolute jump"));
8561 if (!i386_immediate (op_string
))
8564 else if (RC_SAE_immediate (operand_string
))
8566 /* If it is a RC or SAE immediate, do nothing. */
8569 else if (is_digit_char (*op_string
)
8570 || is_identifier_char (*op_string
)
8571 || *op_string
== '(')
8573 /* This is a memory reference of some sort. */
8576 /* Start and end of displacement string expression (if found). */
8577 char *displacement_string_start
;
8578 char *displacement_string_end
;
8581 do_memory_reference
:
8582 if ((i
.mem_operands
== 1
8583 && !current_templates
->start
->opcode_modifier
.isstring
)
8584 || i
.mem_operands
== 2)
8586 as_bad (_("too many memory references for `%s'"),
8587 current_templates
->start
->name
);
8591 /* Check for base index form. We detect the base index form by
8592 looking for an ')' at the end of the operand, searching
8593 for the '(' matching it, and finding a REGISTER_PREFIX or ','
8595 base_string
= op_string
+ strlen (op_string
);
8597 /* Handle vector operations. */
8598 vop_start
= strchr (op_string
, '{');
8599 if (vop_start
&& vop_start
< base_string
)
8601 if (check_VecOperations (vop_start
, base_string
) == NULL
)
8603 base_string
= vop_start
;
8607 if (is_space_char (*base_string
))
8610 /* If we only have a displacement, set-up for it to be parsed later. */
8611 displacement_string_start
= op_string
;
8612 displacement_string_end
= base_string
+ 1;
8614 if (*base_string
== ')')
8617 unsigned int parens_balanced
= 1;
8618 /* We've already checked that the number of left & right ()'s are
8619 equal, so this loop will not be infinite. */
8623 if (*base_string
== ')')
8625 if (*base_string
== '(')
8628 while (parens_balanced
);
8630 temp_string
= base_string
;
8632 /* Skip past '(' and whitespace. */
8634 if (is_space_char (*base_string
))
8637 if (*base_string
== ','
8638 || ((i
.base_reg
= parse_register (base_string
, &end_op
))
8641 displacement_string_end
= temp_string
;
8643 i
.types
[this_operand
].bitfield
.baseindex
= 1;
8647 base_string
= end_op
;
8648 if (is_space_char (*base_string
))
8652 /* There may be an index reg or scale factor here. */
8653 if (*base_string
== ',')
8656 if (is_space_char (*base_string
))
8659 if ((i
.index_reg
= parse_register (base_string
, &end_op
))
8662 base_string
= end_op
;
8663 if (is_space_char (*base_string
))
8665 if (*base_string
== ',')
8668 if (is_space_char (*base_string
))
8671 else if (*base_string
!= ')')
8673 as_bad (_("expecting `,' or `)' "
8674 "after index register in `%s'"),
8679 else if (*base_string
== REGISTER_PREFIX
)
8681 end_op
= strchr (base_string
, ',');
8684 as_bad (_("bad register name `%s'"), base_string
);
8688 /* Check for scale factor. */
8689 if (*base_string
!= ')')
8691 char *end_scale
= i386_scale (base_string
);
8696 base_string
= end_scale
;
8697 if (is_space_char (*base_string
))
8699 if (*base_string
!= ')')
8701 as_bad (_("expecting `)' "
8702 "after scale factor in `%s'"),
8707 else if (!i
.index_reg
)
8709 as_bad (_("expecting index register or scale factor "
8710 "after `,'; got '%c'"),
8715 else if (*base_string
!= ')')
8717 as_bad (_("expecting `,' or `)' "
8718 "after base register in `%s'"),
8723 else if (*base_string
== REGISTER_PREFIX
)
8725 end_op
= strchr (base_string
, ',');
8728 as_bad (_("bad register name `%s'"), base_string
);
8733 /* If there's an expression beginning the operand, parse it,
8734 assuming displacement_string_start and
8735 displacement_string_end are meaningful. */
8736 if (displacement_string_start
!= displacement_string_end
)
8738 if (!i386_displacement (displacement_string_start
,
8739 displacement_string_end
))
8743 /* Special case for (%dx) while doing input/output op. */
8745 && operand_type_equal (&i
.base_reg
->reg_type
,
8746 ®16_inoutportreg
)
8748 && i
.log2_scale_factor
== 0
8749 && i
.seg
[i
.mem_operands
] == 0
8750 && !operand_type_check (i
.types
[this_operand
], disp
))
8752 i
.types
[this_operand
] = inoutportreg
;
8756 if (i386_index_check (operand_string
) == 0)
8758 i
.types
[this_operand
].bitfield
.mem
= 1;
8763 /* It's not a memory operand; argh! */
8764 as_bad (_("invalid char %s beginning operand %d `%s'"),
8765 output_invalid (*op_string
),
8770 return 1; /* Normal return. */
8773 /* Calculate the maximum variable size (i.e., excluding fr_fix)
8774 that an rs_machine_dependent frag may reach. */
8777 i386_frag_max_var (fragS
*frag
)
8779 /* The only relaxable frags are for jumps.
8780 Unconditional jumps can grow by 4 bytes and others by 5 bytes. */
8781 gas_assert (frag
->fr_type
== rs_machine_dependent
);
8782 return TYPE_FROM_RELAX_STATE (frag
->fr_subtype
) == UNCOND_JUMP
? 4 : 5;
8785 /* md_estimate_size_before_relax()
8787 Called just before relax() for rs_machine_dependent frags. The x86
8788 assembler uses these frags to handle variable size jump
8791 Any symbol that is now undefined will not become defined.
8792 Return the correct fr_subtype in the frag.
8793 Return the initial "guess for variable size of frag" to caller.
8794 The guess is actually the growth beyond the fixed part. Whatever
8795 we do to grow the fixed or variable part contributes to our
8799 md_estimate_size_before_relax (fragS
*fragP
, segT segment
)
8801 /* We've already got fragP->fr_subtype right; all we have to do is
8802 check for un-relaxable symbols. On an ELF system, we can't relax
8803 an externally visible symbol, because it may be overridden by a
8805 if (S_GET_SEGMENT (fragP
->fr_symbol
) != segment
8806 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8808 && (S_IS_EXTERNAL (fragP
->fr_symbol
)
8809 || S_IS_WEAK (fragP
->fr_symbol
)
8810 || ((symbol_get_bfdsym (fragP
->fr_symbol
)->flags
8811 & BSF_GNU_INDIRECT_FUNCTION
))))
8813 #if defined (OBJ_COFF) && defined (TE_PE)
8814 || (OUTPUT_FLAVOR
== bfd_target_coff_flavour
8815 && S_IS_WEAK (fragP
->fr_symbol
))
8819 /* Symbol is undefined in this segment, or we need to keep a
8820 reloc so that weak symbols can be overridden. */
8821 int size
= (fragP
->fr_subtype
& CODE16
) ? 2 : 4;
8822 enum bfd_reloc_code_real reloc_type
;
8823 unsigned char *opcode
;
8826 if (fragP
->fr_var
!= NO_RELOC
)
8827 reloc_type
= (enum bfd_reloc_code_real
) fragP
->fr_var
;
8829 reloc_type
= BFD_RELOC_16_PCREL
;
8831 reloc_type
= BFD_RELOC_32_PCREL
;
8833 old_fr_fix
= fragP
->fr_fix
;
8834 opcode
= (unsigned char *) fragP
->fr_opcode
;
8836 switch (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
))
8839 /* Make jmp (0xeb) a (d)word displacement jump. */
8841 fragP
->fr_fix
+= size
;
8842 fix_new (fragP
, old_fr_fix
, size
,
8844 fragP
->fr_offset
, 1,
8850 && (!no_cond_jump_promotion
|| fragP
->fr_var
!= NO_RELOC
))
8852 /* Negate the condition, and branch past an
8853 unconditional jump. */
8856 /* Insert an unconditional jump. */
8858 /* We added two extra opcode bytes, and have a two byte
8860 fragP
->fr_fix
+= 2 + 2;
8861 fix_new (fragP
, old_fr_fix
+ 2, 2,
8863 fragP
->fr_offset
, 1,
8870 if (no_cond_jump_promotion
&& fragP
->fr_var
== NO_RELOC
)
8875 fixP
= fix_new (fragP
, old_fr_fix
, 1,
8877 fragP
->fr_offset
, 1,
8879 fixP
->fx_signed
= 1;
8883 /* This changes the byte-displacement jump 0x7N
8884 to the (d)word-displacement jump 0x0f,0x8N. */
8885 opcode
[1] = opcode
[0] + 0x10;
8886 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
8887 /* We've added an opcode byte. */
8888 fragP
->fr_fix
+= 1 + size
;
8889 fix_new (fragP
, old_fr_fix
+ 1, size
,
8891 fragP
->fr_offset
, 1,
8896 BAD_CASE (fragP
->fr_subtype
);
8900 return fragP
->fr_fix
- old_fr_fix
;
8903 /* Guess size depending on current relax state. Initially the relax
8904 state will correspond to a short jump and we return 1, because
8905 the variable part of the frag (the branch offset) is one byte
8906 long. However, we can relax a section more than once and in that
8907 case we must either set fr_subtype back to the unrelaxed state,
8908 or return the value for the appropriate branch. */
8909 return md_relax_table
[fragP
->fr_subtype
].rlx_length
;
8912 /* Called after relax() is finished.
8914 In: Address of frag.
8915 fr_type == rs_machine_dependent.
8916 fr_subtype is what the address relaxed to.
8918 Out: Any fixSs and constants are set up.
8919 Caller will turn frag into a ".space 0". */
8922 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
, segT sec ATTRIBUTE_UNUSED
,
8925 unsigned char *opcode
;
8926 unsigned char *where_to_put_displacement
= NULL
;
8927 offsetT target_address
;
8928 offsetT opcode_address
;
8929 unsigned int extension
= 0;
8930 offsetT displacement_from_opcode_start
;
8932 opcode
= (unsigned char *) fragP
->fr_opcode
;
8934 /* Address we want to reach in file space. */
8935 target_address
= S_GET_VALUE (fragP
->fr_symbol
) + fragP
->fr_offset
;
8937 /* Address opcode resides at in file space. */
8938 opcode_address
= fragP
->fr_address
+ fragP
->fr_fix
;
8940 /* Displacement from opcode start to fill into instruction. */
8941 displacement_from_opcode_start
= target_address
- opcode_address
;
8943 if ((fragP
->fr_subtype
& BIG
) == 0)
8945 /* Don't have to change opcode. */
8946 extension
= 1; /* 1 opcode + 1 displacement */
8947 where_to_put_displacement
= &opcode
[1];
8951 if (no_cond_jump_promotion
8952 && TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) != UNCOND_JUMP
)
8953 as_warn_where (fragP
->fr_file
, fragP
->fr_line
,
8954 _("long jump required"));
8956 switch (fragP
->fr_subtype
)
8958 case ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG
):
8959 extension
= 4; /* 1 opcode + 4 displacement */
8961 where_to_put_displacement
= &opcode
[1];
8964 case ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG16
):
8965 extension
= 2; /* 1 opcode + 2 displacement */
8967 where_to_put_displacement
= &opcode
[1];
8970 case ENCODE_RELAX_STATE (COND_JUMP
, BIG
):
8971 case ENCODE_RELAX_STATE (COND_JUMP86
, BIG
):
8972 extension
= 5; /* 2 opcode + 4 displacement */
8973 opcode
[1] = opcode
[0] + 0x10;
8974 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
8975 where_to_put_displacement
= &opcode
[2];
8978 case ENCODE_RELAX_STATE (COND_JUMP
, BIG16
):
8979 extension
= 3; /* 2 opcode + 2 displacement */
8980 opcode
[1] = opcode
[0] + 0x10;
8981 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
8982 where_to_put_displacement
= &opcode
[2];
8985 case ENCODE_RELAX_STATE (COND_JUMP86
, BIG16
):
8990 where_to_put_displacement
= &opcode
[3];
8994 BAD_CASE (fragP
->fr_subtype
);
8999 /* If size if less then four we are sure that the operand fits,
9000 but if it's 4, then it could be that the displacement is larger
9002 if (DISP_SIZE_FROM_RELAX_STATE (fragP
->fr_subtype
) == 4
9004 && ((addressT
) (displacement_from_opcode_start
- extension
9005 + ((addressT
) 1 << 31))
9006 > (((addressT
) 2 << 31) - 1)))
9008 as_bad_where (fragP
->fr_file
, fragP
->fr_line
,
9009 _("jump target out of range"));
9010 /* Make us emit 0. */
9011 displacement_from_opcode_start
= extension
;
9013 /* Now put displacement after opcode. */
9014 md_number_to_chars ((char *) where_to_put_displacement
,
9015 (valueT
) (displacement_from_opcode_start
- extension
),
9016 DISP_SIZE_FROM_RELAX_STATE (fragP
->fr_subtype
));
9017 fragP
->fr_fix
+= extension
;
9020 /* Apply a fixup (fixP) to segment data, once it has been determined
9021 by our caller that we have all the info we need to fix it up.
9023 Parameter valP is the pointer to the value of the bits.
9025 On the 386, immediates, displacements, and data pointers are all in
9026 the same (little-endian) format, so we don't need to care about which
9030 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
9032 char *p
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
9033 valueT value
= *valP
;
9035 #if !defined (TE_Mach)
9038 switch (fixP
->fx_r_type
)
9044 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
9047 case BFD_RELOC_X86_64_32S
:
9048 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
9051 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
9054 fixP
->fx_r_type
= BFD_RELOC_8_PCREL
;
9059 if (fixP
->fx_addsy
!= NULL
9060 && (fixP
->fx_r_type
== BFD_RELOC_32_PCREL
9061 || fixP
->fx_r_type
== BFD_RELOC_64_PCREL
9062 || fixP
->fx_r_type
== BFD_RELOC_16_PCREL
9063 || fixP
->fx_r_type
== BFD_RELOC_8_PCREL
)
9064 && !use_rela_relocations
)
9066 /* This is a hack. There should be a better way to handle this.
9067 This covers for the fact that bfd_install_relocation will
9068 subtract the current location (for partial_inplace, PC relative
9069 relocations); see more below. */
9073 || OUTPUT_FLAVOR
== bfd_target_coff_flavour
9076 value
+= fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
9078 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9081 segT sym_seg
= S_GET_SEGMENT (fixP
->fx_addsy
);
9084 || (symbol_section_p (fixP
->fx_addsy
)
9085 && sym_seg
!= absolute_section
))
9086 && !generic_force_reloc (fixP
))
9088 /* Yes, we add the values in twice. This is because
9089 bfd_install_relocation subtracts them out again. I think
9090 bfd_install_relocation is broken, but I don't dare change
9092 value
+= fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
9096 #if defined (OBJ_COFF) && defined (TE_PE)
9097 /* For some reason, the PE format does not store a
9098 section address offset for a PC relative symbol. */
9099 if (S_GET_SEGMENT (fixP
->fx_addsy
) != seg
9100 || S_IS_WEAK (fixP
->fx_addsy
))
9101 value
+= md_pcrel_from (fixP
);
9104 #if defined (OBJ_COFF) && defined (TE_PE)
9105 if (fixP
->fx_addsy
!= NULL
&& S_IS_WEAK (fixP
->fx_addsy
))
9107 value
-= S_GET_VALUE (fixP
->fx_addsy
);
9111 /* Fix a few things - the dynamic linker expects certain values here,
9112 and we must not disappoint it. */
9113 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9114 if (IS_ELF
&& fixP
->fx_addsy
)
9115 switch (fixP
->fx_r_type
)
9117 case BFD_RELOC_386_PLT32
:
9118 case BFD_RELOC_X86_64_PLT32
:
9119 /* Make the jump instruction point to the address of the operand. At
9120 runtime we merely add the offset to the actual PLT entry. */
9124 case BFD_RELOC_386_TLS_GD
:
9125 case BFD_RELOC_386_TLS_LDM
:
9126 case BFD_RELOC_386_TLS_IE_32
:
9127 case BFD_RELOC_386_TLS_IE
:
9128 case BFD_RELOC_386_TLS_GOTIE
:
9129 case BFD_RELOC_386_TLS_GOTDESC
:
9130 case BFD_RELOC_X86_64_TLSGD
:
9131 case BFD_RELOC_X86_64_TLSLD
:
9132 case BFD_RELOC_X86_64_GOTTPOFF
:
9133 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
9134 value
= 0; /* Fully resolved at runtime. No addend. */
9136 case BFD_RELOC_386_TLS_LE
:
9137 case BFD_RELOC_386_TLS_LDO_32
:
9138 case BFD_RELOC_386_TLS_LE_32
:
9139 case BFD_RELOC_X86_64_DTPOFF32
:
9140 case BFD_RELOC_X86_64_DTPOFF64
:
9141 case BFD_RELOC_X86_64_TPOFF32
:
9142 case BFD_RELOC_X86_64_TPOFF64
:
9143 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
9146 case BFD_RELOC_386_TLS_DESC_CALL
:
9147 case BFD_RELOC_X86_64_TLSDESC_CALL
:
9148 value
= 0; /* Fully resolved at runtime. No addend. */
9149 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
9153 case BFD_RELOC_386_GOT32
:
9154 case BFD_RELOC_X86_64_GOT32
:
9155 value
= 0; /* Fully resolved at runtime. No addend. */
9158 case BFD_RELOC_VTABLE_INHERIT
:
9159 case BFD_RELOC_VTABLE_ENTRY
:
9166 #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */
9168 #endif /* !defined (TE_Mach) */
9170 /* Are we finished with this relocation now? */
9171 if (fixP
->fx_addsy
== NULL
)
9173 #if defined (OBJ_COFF) && defined (TE_PE)
9174 else if (fixP
->fx_addsy
!= NULL
&& S_IS_WEAK (fixP
->fx_addsy
))
9177 /* Remember value for tc_gen_reloc. */
9178 fixP
->fx_addnumber
= value
;
9179 /* Clear out the frag for now. */
9183 else if (use_rela_relocations
)
9185 fixP
->fx_no_overflow
= 1;
9186 /* Remember value for tc_gen_reloc. */
9187 fixP
->fx_addnumber
= value
;
9191 md_number_to_chars (p
, value
, fixP
->fx_size
);
9195 md_atof (int type
, char *litP
, int *sizeP
)
9197 /* This outputs the LITTLENUMs in REVERSE order;
9198 in accord with the bigendian 386. */
9199 return ieee_md_atof (type
, litP
, sizeP
, FALSE
);
9202 static char output_invalid_buf
[sizeof (unsigned char) * 2 + 6];
9205 output_invalid (int c
)
9208 snprintf (output_invalid_buf
, sizeof (output_invalid_buf
),
9211 snprintf (output_invalid_buf
, sizeof (output_invalid_buf
),
9212 "(0x%x)", (unsigned char) c
);
9213 return output_invalid_buf
;
9216 /* REG_STRING starts *before* REGISTER_PREFIX. */
9218 static const reg_entry
*
9219 parse_real_register (char *reg_string
, char **end_op
)
9221 char *s
= reg_string
;
9223 char reg_name_given
[MAX_REG_NAME_SIZE
+ 1];
9226 /* Skip possible REGISTER_PREFIX and possible whitespace. */
9227 if (*s
== REGISTER_PREFIX
)
9230 if (is_space_char (*s
))
9234 while ((*p
++ = register_chars
[(unsigned char) *s
]) != '\0')
9236 if (p
>= reg_name_given
+ MAX_REG_NAME_SIZE
)
9237 return (const reg_entry
*) NULL
;
9241 /* For naked regs, make sure that we are not dealing with an identifier.
9242 This prevents confusing an identifier like `eax_var' with register
9244 if (allow_naked_reg
&& identifier_chars
[(unsigned char) *s
])
9245 return (const reg_entry
*) NULL
;
9249 r
= (const reg_entry
*) hash_find (reg_hash
, reg_name_given
);
9251 /* Handle floating point regs, allowing spaces in the (i) part. */
9252 if (r
== i386_regtab
/* %st is first entry of table */)
9254 if (is_space_char (*s
))
9259 if (is_space_char (*s
))
9261 if (*s
>= '0' && *s
<= '7')
9265 if (is_space_char (*s
))
9270 r
= (const reg_entry
*) hash_find (reg_hash
, "st(0)");
9275 /* We have "%st(" then garbage. */
9276 return (const reg_entry
*) NULL
;
9280 if (r
== NULL
|| allow_pseudo_reg
)
9283 if (operand_type_all_zero (&r
->reg_type
))
9284 return (const reg_entry
*) NULL
;
9286 if ((r
->reg_type
.bitfield
.reg32
9287 || r
->reg_type
.bitfield
.sreg3
9288 || r
->reg_type
.bitfield
.control
9289 || r
->reg_type
.bitfield
.debug
9290 || r
->reg_type
.bitfield
.test
)
9291 && !cpu_arch_flags
.bitfield
.cpui386
)
9292 return (const reg_entry
*) NULL
;
9294 if (r
->reg_type
.bitfield
.floatreg
9295 && !cpu_arch_flags
.bitfield
.cpu8087
9296 && !cpu_arch_flags
.bitfield
.cpu287
9297 && !cpu_arch_flags
.bitfield
.cpu387
)
9298 return (const reg_entry
*) NULL
;
9300 if (r
->reg_type
.bitfield
.regmmx
&& !cpu_arch_flags
.bitfield
.cpummx
)
9301 return (const reg_entry
*) NULL
;
9303 if (r
->reg_type
.bitfield
.regxmm
&& !cpu_arch_flags
.bitfield
.cpusse
)
9304 return (const reg_entry
*) NULL
;
9306 if (r
->reg_type
.bitfield
.regymm
&& !cpu_arch_flags
.bitfield
.cpuavx
)
9307 return (const reg_entry
*) NULL
;
9309 if ((r
->reg_type
.bitfield
.regzmm
|| r
->reg_type
.bitfield
.regmask
)
9310 && !cpu_arch_flags
.bitfield
.cpuavx512f
)
9311 return (const reg_entry
*) NULL
;
9313 /* Don't allow fake index register unless allow_index_reg isn't 0. */
9314 if (!allow_index_reg
9315 && (r
->reg_num
== RegEiz
|| r
->reg_num
== RegRiz
))
9316 return (const reg_entry
*) NULL
;
9318 /* Upper 16 vector register is only available with VREX in 64bit
9320 if ((r
->reg_flags
& RegVRex
))
9322 if (!cpu_arch_flags
.bitfield
.cpuvrex
9323 || flag_code
!= CODE_64BIT
)
9324 return (const reg_entry
*) NULL
;
9329 if (((r
->reg_flags
& (RegRex64
| RegRex
))
9330 || r
->reg_type
.bitfield
.reg64
)
9331 && (!cpu_arch_flags
.bitfield
.cpulm
9332 || !operand_type_equal (&r
->reg_type
, &control
))
9333 && flag_code
!= CODE_64BIT
)
9334 return (const reg_entry
*) NULL
;
9336 if (r
->reg_type
.bitfield
.sreg3
&& r
->reg_num
== RegFlat
&& !intel_syntax
)
9337 return (const reg_entry
*) NULL
;
9342 /* REG_STRING starts *before* REGISTER_PREFIX. */
9344 static const reg_entry
*
9345 parse_register (char *reg_string
, char **end_op
)
9349 if (*reg_string
== REGISTER_PREFIX
|| allow_naked_reg
)
9350 r
= parse_real_register (reg_string
, end_op
);
9355 char *save
= input_line_pointer
;
9359 input_line_pointer
= reg_string
;
9360 c
= get_symbol_end ();
9361 symbolP
= symbol_find (reg_string
);
9362 if (symbolP
&& S_GET_SEGMENT (symbolP
) == reg_section
)
9364 const expressionS
*e
= symbol_get_value_expression (symbolP
);
9366 know (e
->X_op
== O_register
);
9367 know (e
->X_add_number
>= 0
9368 && (valueT
) e
->X_add_number
< i386_regtab_size
);
9369 r
= i386_regtab
+ e
->X_add_number
;
9370 *end_op
= input_line_pointer
;
9372 *input_line_pointer
= c
;
9373 input_line_pointer
= save
;
9379 i386_parse_name (char *name
, expressionS
*e
, char *nextcharP
)
9382 char *end
= input_line_pointer
;
9385 r
= parse_register (name
, &input_line_pointer
);
9386 if (r
&& end
<= input_line_pointer
)
9388 *nextcharP
= *input_line_pointer
;
9389 *input_line_pointer
= 0;
9390 e
->X_op
= O_register
;
9391 e
->X_add_number
= r
- i386_regtab
;
9394 input_line_pointer
= end
;
9396 return intel_syntax
? i386_intel_parse_name (name
, e
) : 0;
9400 md_operand (expressionS
*e
)
9405 switch (*input_line_pointer
)
9407 case REGISTER_PREFIX
:
9408 r
= parse_real_register (input_line_pointer
, &end
);
9411 e
->X_op
= O_register
;
9412 e
->X_add_number
= r
- i386_regtab
;
9413 input_line_pointer
= end
;
9418 gas_assert (intel_syntax
);
9419 end
= input_line_pointer
++;
9421 if (*input_line_pointer
== ']')
9423 ++input_line_pointer
;
9424 e
->X_op_symbol
= make_expr_symbol (e
);
9425 e
->X_add_symbol
= NULL
;
9426 e
->X_add_number
= 0;
9432 input_line_pointer
= end
;
9439 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9440 const char *md_shortopts
= "kVQ:sqn";
9442 const char *md_shortopts
= "qn";
9445 #define OPTION_32 (OPTION_MD_BASE + 0)
9446 #define OPTION_64 (OPTION_MD_BASE + 1)
9447 #define OPTION_DIVIDE (OPTION_MD_BASE + 2)
9448 #define OPTION_MARCH (OPTION_MD_BASE + 3)
9449 #define OPTION_MTUNE (OPTION_MD_BASE + 4)
9450 #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5)
9451 #define OPTION_MSYNTAX (OPTION_MD_BASE + 6)
9452 #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7)
9453 #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8)
9454 #define OPTION_MOLD_GCC (OPTION_MD_BASE + 9)
9455 #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10)
9456 #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11)
9457 #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12)
9458 #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13)
9459 #define OPTION_X32 (OPTION_MD_BASE + 14)
9460 #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15)
9461 #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16)
9462 #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17)
9464 struct option md_longopts
[] =
9466 {"32", no_argument
, NULL
, OPTION_32
},
9467 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
9468 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
9469 {"64", no_argument
, NULL
, OPTION_64
},
9471 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9472 {"x32", no_argument
, NULL
, OPTION_X32
},
9474 {"divide", no_argument
, NULL
, OPTION_DIVIDE
},
9475 {"march", required_argument
, NULL
, OPTION_MARCH
},
9476 {"mtune", required_argument
, NULL
, OPTION_MTUNE
},
9477 {"mmnemonic", required_argument
, NULL
, OPTION_MMNEMONIC
},
9478 {"msyntax", required_argument
, NULL
, OPTION_MSYNTAX
},
9479 {"mindex-reg", no_argument
, NULL
, OPTION_MINDEX_REG
},
9480 {"mnaked-reg", no_argument
, NULL
, OPTION_MNAKED_REG
},
9481 {"mold-gcc", no_argument
, NULL
, OPTION_MOLD_GCC
},
9482 {"msse2avx", no_argument
, NULL
, OPTION_MSSE2AVX
},
9483 {"msse-check", required_argument
, NULL
, OPTION_MSSE_CHECK
},
9484 {"moperand-check", required_argument
, NULL
, OPTION_MOPERAND_CHECK
},
9485 {"mavxscalar", required_argument
, NULL
, OPTION_MAVXSCALAR
},
9486 {"madd-bnd-prefix", no_argument
, NULL
, OPTION_MADD_BND_PREFIX
},
9487 {"mevexlig", required_argument
, NULL
, OPTION_MEVEXLIG
},
9488 {"mevexwig", required_argument
, NULL
, OPTION_MEVEXWIG
},
9489 {NULL
, no_argument
, NULL
, 0}
9491 size_t md_longopts_size
= sizeof (md_longopts
);
9494 md_parse_option (int c
, char *arg
)
9502 optimize_align_code
= 0;
9509 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9510 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
9511 should be emitted or not. FIXME: Not implemented. */
9515 /* -V: SVR4 argument to print version ID. */
9517 print_version_id ();
9520 /* -k: Ignore for FreeBSD compatibility. */
9525 /* -s: On i386 Solaris, this tells the native assembler to use
9526 .stab instead of .stab.excl. We always use .stab anyhow. */
9529 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
9530 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
9533 const char **list
, **l
;
9535 list
= bfd_target_list ();
9536 for (l
= list
; *l
!= NULL
; l
++)
9537 if (CONST_STRNEQ (*l
, "elf64-x86-64")
9538 || strcmp (*l
, "coff-x86-64") == 0
9539 || strcmp (*l
, "pe-x86-64") == 0
9540 || strcmp (*l
, "pei-x86-64") == 0
9541 || strcmp (*l
, "mach-o-x86-64") == 0)
9543 default_arch
= "x86_64";
9547 as_fatal (_("no compiled in support for x86_64"));
9553 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9557 const char **list
, **l
;
9559 list
= bfd_target_list ();
9560 for (l
= list
; *l
!= NULL
; l
++)
9561 if (CONST_STRNEQ (*l
, "elf32-x86-64"))
9563 default_arch
= "x86_64:32";
9567 as_fatal (_("no compiled in support for 32bit x86_64"));
9571 as_fatal (_("32bit x86_64 is only supported for ELF"));
9576 default_arch
= "i386";
9580 #ifdef SVR4_COMMENT_CHARS
9585 n
= (char *) xmalloc (strlen (i386_comment_chars
) + 1);
9587 for (s
= i386_comment_chars
; *s
!= '\0'; s
++)
9591 i386_comment_chars
= n
;
9597 arch
= xstrdup (arg
);
9601 as_fatal (_("invalid -march= option: `%s'"), arg
);
9602 next
= strchr (arch
, '+');
9605 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
9607 if (strcmp (arch
, cpu_arch
[j
].name
) == 0)
9610 if (! cpu_arch
[j
].flags
.bitfield
.cpui386
)
9613 cpu_arch_name
= cpu_arch
[j
].name
;
9614 cpu_sub_arch_name
= NULL
;
9615 cpu_arch_flags
= cpu_arch
[j
].flags
;
9616 cpu_arch_isa
= cpu_arch
[j
].type
;
9617 cpu_arch_isa_flags
= cpu_arch
[j
].flags
;
9618 if (!cpu_arch_tune_set
)
9620 cpu_arch_tune
= cpu_arch_isa
;
9621 cpu_arch_tune_flags
= cpu_arch_isa_flags
;
9625 else if (*cpu_arch
[j
].name
== '.'
9626 && strcmp (arch
, cpu_arch
[j
].name
+ 1) == 0)
9628 /* ISA entension. */
9629 i386_cpu_flags flags
;
9631 if (!cpu_arch
[j
].negated
)
9632 flags
= cpu_flags_or (cpu_arch_flags
,
9635 flags
= cpu_flags_and_not (cpu_arch_flags
,
9637 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
9639 if (cpu_sub_arch_name
)
9641 char *name
= cpu_sub_arch_name
;
9642 cpu_sub_arch_name
= concat (name
,
9644 (const char *) NULL
);
9648 cpu_sub_arch_name
= xstrdup (cpu_arch
[j
].name
);
9649 cpu_arch_flags
= flags
;
9650 cpu_arch_isa_flags
= flags
;
9656 if (j
>= ARRAY_SIZE (cpu_arch
))
9657 as_fatal (_("invalid -march= option: `%s'"), arg
);
9661 while (next
!= NULL
);
9666 as_fatal (_("invalid -mtune= option: `%s'"), arg
);
9667 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
9669 if (strcmp (arg
, cpu_arch
[j
].name
) == 0)
9671 cpu_arch_tune_set
= 1;
9672 cpu_arch_tune
= cpu_arch
[j
].type
;
9673 cpu_arch_tune_flags
= cpu_arch
[j
].flags
;
9677 if (j
>= ARRAY_SIZE (cpu_arch
))
9678 as_fatal (_("invalid -mtune= option: `%s'"), arg
);
9681 case OPTION_MMNEMONIC
:
9682 if (strcasecmp (arg
, "att") == 0)
9684 else if (strcasecmp (arg
, "intel") == 0)
9687 as_fatal (_("invalid -mmnemonic= option: `%s'"), arg
);
9690 case OPTION_MSYNTAX
:
9691 if (strcasecmp (arg
, "att") == 0)
9693 else if (strcasecmp (arg
, "intel") == 0)
9696 as_fatal (_("invalid -msyntax= option: `%s'"), arg
);
9699 case OPTION_MINDEX_REG
:
9700 allow_index_reg
= 1;
9703 case OPTION_MNAKED_REG
:
9704 allow_naked_reg
= 1;
9707 case OPTION_MOLD_GCC
:
9711 case OPTION_MSSE2AVX
:
9715 case OPTION_MSSE_CHECK
:
9716 if (strcasecmp (arg
, "error") == 0)
9717 sse_check
= check_error
;
9718 else if (strcasecmp (arg
, "warning") == 0)
9719 sse_check
= check_warning
;
9720 else if (strcasecmp (arg
, "none") == 0)
9721 sse_check
= check_none
;
9723 as_fatal (_("invalid -msse-check= option: `%s'"), arg
);
9726 case OPTION_MOPERAND_CHECK
:
9727 if (strcasecmp (arg
, "error") == 0)
9728 operand_check
= check_error
;
9729 else if (strcasecmp (arg
, "warning") == 0)
9730 operand_check
= check_warning
;
9731 else if (strcasecmp (arg
, "none") == 0)
9732 operand_check
= check_none
;
9734 as_fatal (_("invalid -moperand-check= option: `%s'"), arg
);
9737 case OPTION_MAVXSCALAR
:
9738 if (strcasecmp (arg
, "128") == 0)
9740 else if (strcasecmp (arg
, "256") == 0)
9743 as_fatal (_("invalid -mavxscalar= option: `%s'"), arg
);
9746 case OPTION_MADD_BND_PREFIX
:
9750 case OPTION_MEVEXLIG
:
9751 if (strcmp (arg
, "128") == 0)
9753 else if (strcmp (arg
, "256") == 0)
9755 else if (strcmp (arg
, "512") == 0)
9758 as_fatal (_("invalid -mevexlig= option: `%s'"), arg
);
9761 case OPTION_MEVEXWIG
:
9762 if (strcmp (arg
, "0") == 0)
9764 else if (strcmp (arg
, "1") == 0)
9767 as_fatal (_("invalid -mevexwig= option: `%s'"), arg
);
9776 #define MESSAGE_TEMPLATE \
9780 show_arch (FILE *stream
, int ext
, int check
)
9782 static char message
[] = MESSAGE_TEMPLATE
;
9783 char *start
= message
+ 27;
9785 int size
= sizeof (MESSAGE_TEMPLATE
);
9792 left
= size
- (start
- message
);
9793 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
9795 /* Should it be skipped? */
9796 if (cpu_arch
[j
].skip
)
9799 name
= cpu_arch
[j
].name
;
9800 len
= cpu_arch
[j
].len
;
9803 /* It is an extension. Skip if we aren't asked to show it. */
9814 /* It is an processor. Skip if we show only extension. */
9817 else if (check
&& ! cpu_arch
[j
].flags
.bitfield
.cpui386
)
9819 /* It is an impossible processor - skip. */
9823 /* Reserve 2 spaces for ", " or ",\0" */
9826 /* Check if there is any room. */
9834 p
= mempcpy (p
, name
, len
);
9838 /* Output the current message now and start a new one. */
9841 fprintf (stream
, "%s\n", message
);
9843 left
= size
- (start
- message
) - len
- 2;
9845 gas_assert (left
>= 0);
9847 p
= mempcpy (p
, name
, len
);
9852 fprintf (stream
, "%s\n", message
);
9856 md_show_usage (FILE *stream
)
9858 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9859 fprintf (stream
, _("\
9861 -V print assembler version number\n\
9864 fprintf (stream
, _("\
9865 -n Do not optimize code alignment\n\
9866 -q quieten some warnings\n"));
9867 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9868 fprintf (stream
, _("\
9871 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
9872 || defined (TE_PE) || defined (TE_PEP))
9873 fprintf (stream
, _("\
9874 --32/--64/--x32 generate 32bit/64bit/x32 code\n"));
9876 #ifdef SVR4_COMMENT_CHARS
9877 fprintf (stream
, _("\
9878 --divide do not treat `/' as a comment character\n"));
9880 fprintf (stream
, _("\
9881 --divide ignored\n"));
9883 fprintf (stream
, _("\
9884 -march=CPU[,+EXTENSION...]\n\
9885 generate code for CPU and EXTENSION, CPU is one of:\n"));
9886 show_arch (stream
, 0, 1);
9887 fprintf (stream
, _("\
9888 EXTENSION is combination of:\n"));
9889 show_arch (stream
, 1, 0);
9890 fprintf (stream
, _("\
9891 -mtune=CPU optimize for CPU, CPU is one of:\n"));
9892 show_arch (stream
, 0, 0);
9893 fprintf (stream
, _("\
9894 -msse2avx encode SSE instructions with VEX prefix\n"));
9895 fprintf (stream
, _("\
9896 -msse-check=[none|error|warning]\n\
9897 check SSE instructions\n"));
9898 fprintf (stream
, _("\
9899 -moperand-check=[none|error|warning]\n\
9900 check operand combinations for validity\n"));
9901 fprintf (stream
, _("\
9902 -mavxscalar=[128|256] encode scalar AVX instructions with specific vector\n\
9904 fprintf (stream
, _("\
9905 -mevexlig=[128|256|512] encode scalar EVEX instructions with specific vector\n\
9907 fprintf (stream
, _("\
9908 -mevexwig=[0|1] encode EVEX instructions with specific EVEX.W value\n\
9909 for EVEX.W bit ignored instructions\n"));
9910 fprintf (stream
, _("\
9911 -mmnemonic=[att|intel] use AT&T/Intel mnemonic\n"));
9912 fprintf (stream
, _("\
9913 -msyntax=[att|intel] use AT&T/Intel syntax\n"));
9914 fprintf (stream
, _("\
9915 -mindex-reg support pseudo index registers\n"));
9916 fprintf (stream
, _("\
9917 -mnaked-reg don't require `%%' prefix for registers\n"));
9918 fprintf (stream
, _("\
9919 -mold-gcc support old (<= 2.8.1) versions of gcc\n"));
9920 fprintf (stream
, _("\
9921 -madd-bnd-prefix add BND prefix for all valid branches\n"));
9924 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
9925 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
9926 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
9928 /* Pick the target format to use. */
9931 i386_target_format (void)
9933 if (!strncmp (default_arch
, "x86_64", 6))
9935 update_code_flag (CODE_64BIT
, 1);
9936 if (default_arch
[6] == '\0')
9937 x86_elf_abi
= X86_64_ABI
;
9939 x86_elf_abi
= X86_64_X32_ABI
;
9941 else if (!strcmp (default_arch
, "i386"))
9942 update_code_flag (CODE_32BIT
, 1);
9944 as_fatal (_("unknown architecture"));
9946 if (cpu_flags_all_zero (&cpu_arch_isa_flags
))
9947 cpu_arch_isa_flags
= cpu_arch
[flag_code
== CODE_64BIT
].flags
;
9948 if (cpu_flags_all_zero (&cpu_arch_tune_flags
))
9949 cpu_arch_tune_flags
= cpu_arch
[flag_code
== CODE_64BIT
].flags
;
9951 switch (OUTPUT_FLAVOR
)
9953 #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT)
9954 case bfd_target_aout_flavour
:
9955 return AOUT_TARGET_FORMAT
;
9957 #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF)
9958 # if defined (TE_PE) || defined (TE_PEP)
9959 case bfd_target_coff_flavour
:
9960 return flag_code
== CODE_64BIT
? "pe-x86-64" : "pe-i386";
9961 # elif defined (TE_GO32)
9962 case bfd_target_coff_flavour
:
9965 case bfd_target_coff_flavour
:
9969 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
9970 case bfd_target_elf_flavour
:
9974 switch (x86_elf_abi
)
9977 format
= ELF_TARGET_FORMAT
;
9980 use_rela_relocations
= 1;
9982 format
= ELF_TARGET_FORMAT64
;
9984 case X86_64_X32_ABI
:
9985 use_rela_relocations
= 1;
9987 disallow_64bit_reloc
= 1;
9988 format
= ELF_TARGET_FORMAT32
;
9991 if (cpu_arch_isa
== PROCESSOR_L1OM
)
9993 if (x86_elf_abi
!= X86_64_ABI
)
9994 as_fatal (_("Intel L1OM is 64bit only"));
9995 return ELF_TARGET_L1OM_FORMAT
;
9997 if (cpu_arch_isa
== PROCESSOR_K1OM
)
9999 if (x86_elf_abi
!= X86_64_ABI
)
10000 as_fatal (_("Intel K1OM is 64bit only"));
10001 return ELF_TARGET_K1OM_FORMAT
;
10007 #if defined (OBJ_MACH_O)
10008 case bfd_target_mach_o_flavour
:
10009 if (flag_code
== CODE_64BIT
)
10011 use_rela_relocations
= 1;
10013 return "mach-o-x86-64";
10016 return "mach-o-i386";
10024 #endif /* OBJ_MAYBE_ more than one */
10026 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF))
10028 i386_elf_emit_arch_note (void)
10030 if (IS_ELF
&& cpu_arch_name
!= NULL
)
10033 asection
*seg
= now_seg
;
10034 subsegT subseg
= now_subseg
;
10035 Elf_Internal_Note i_note
;
10036 Elf_External_Note e_note
;
10037 asection
*note_secp
;
10040 /* Create the .note section. */
10041 note_secp
= subseg_new (".note", 0);
10042 bfd_set_section_flags (stdoutput
,
10044 SEC_HAS_CONTENTS
| SEC_READONLY
);
10046 /* Process the arch string. */
10047 len
= strlen (cpu_arch_name
);
10049 i_note
.namesz
= len
+ 1;
10051 i_note
.type
= NT_ARCH
;
10052 p
= frag_more (sizeof (e_note
.namesz
));
10053 md_number_to_chars (p
, (valueT
) i_note
.namesz
, sizeof (e_note
.namesz
));
10054 p
= frag_more (sizeof (e_note
.descsz
));
10055 md_number_to_chars (p
, (valueT
) i_note
.descsz
, sizeof (e_note
.descsz
));
10056 p
= frag_more (sizeof (e_note
.type
));
10057 md_number_to_chars (p
, (valueT
) i_note
.type
, sizeof (e_note
.type
));
10058 p
= frag_more (len
+ 1);
10059 strcpy (p
, cpu_arch_name
);
10061 frag_align (2, 0, 0);
10063 subseg_set (seg
, subseg
);
10069 md_undefined_symbol (char *name
)
10071 if (name
[0] == GLOBAL_OFFSET_TABLE_NAME
[0]
10072 && name
[1] == GLOBAL_OFFSET_TABLE_NAME
[1]
10073 && name
[2] == GLOBAL_OFFSET_TABLE_NAME
[2]
10074 && strcmp (name
, GLOBAL_OFFSET_TABLE_NAME
) == 0)
10078 if (symbol_find (name
))
10079 as_bad (_("GOT already in symbol table"));
10080 GOT_symbol
= symbol_new (name
, undefined_section
,
10081 (valueT
) 0, &zero_address_frag
);
10088 /* Round up a section size to the appropriate boundary. */
10091 md_section_align (segT segment ATTRIBUTE_UNUSED
, valueT size
)
10093 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
10094 if (OUTPUT_FLAVOR
== bfd_target_aout_flavour
)
10096 /* For a.out, force the section size to be aligned. If we don't do
10097 this, BFD will align it for us, but it will not write out the
10098 final bytes of the section. This may be a bug in BFD, but it is
10099 easier to fix it here since that is how the other a.out targets
10103 align
= bfd_get_section_alignment (stdoutput
, segment
);
10104 size
= ((size
+ (1 << align
) - 1) & ((valueT
) -1 << align
));
10111 /* On the i386, PC-relative offsets are relative to the start of the
10112 next instruction. That is, the address of the offset, plus its
10113 size, since the offset is always the last part of the insn. */
10116 md_pcrel_from (fixS
*fixP
)
10118 return fixP
->fx_size
+ fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
10124 s_bss (int ignore ATTRIBUTE_UNUSED
)
10128 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10130 obj_elf_section_change_hook ();
10132 temp
= get_absolute_expression ();
10133 subseg_set (bss_section
, (subsegT
) temp
);
10134 demand_empty_rest_of_line ();
10140 i386_validate_fix (fixS
*fixp
)
10142 if (fixp
->fx_subsy
&& fixp
->fx_subsy
== GOT_symbol
)
10144 if (fixp
->fx_r_type
== BFD_RELOC_32_PCREL
)
10148 fixp
->fx_r_type
= BFD_RELOC_X86_64_GOTPCREL
;
10153 fixp
->fx_r_type
= BFD_RELOC_386_GOTOFF
;
10155 fixp
->fx_r_type
= BFD_RELOC_X86_64_GOTOFF64
;
10157 fixp
->fx_subsy
= 0;
10162 tc_gen_reloc (asection
*section ATTRIBUTE_UNUSED
, fixS
*fixp
)
10165 bfd_reloc_code_real_type code
;
10167 switch (fixp
->fx_r_type
)
10169 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10170 case BFD_RELOC_SIZE32
:
10171 case BFD_RELOC_SIZE64
:
10172 if (S_IS_DEFINED (fixp
->fx_addsy
)
10173 && !S_IS_EXTERNAL (fixp
->fx_addsy
))
10175 /* Resolve size relocation against local symbol to size of
10176 the symbol plus addend. */
10177 valueT value
= S_GET_SIZE (fixp
->fx_addsy
) + fixp
->fx_offset
;
10178 if (fixp
->fx_r_type
== BFD_RELOC_SIZE32
10179 && !fits_in_unsigned_long (value
))
10180 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
10181 _("symbol size computation overflow"));
10182 fixp
->fx_addsy
= NULL
;
10183 fixp
->fx_subsy
= NULL
;
10184 md_apply_fix (fixp
, (valueT
*) &value
, NULL
);
10189 case BFD_RELOC_X86_64_PLT32
:
10190 case BFD_RELOC_X86_64_GOT32
:
10191 case BFD_RELOC_X86_64_GOTPCREL
:
10192 case BFD_RELOC_386_PLT32
:
10193 case BFD_RELOC_386_GOT32
:
10194 case BFD_RELOC_386_GOTOFF
:
10195 case BFD_RELOC_386_GOTPC
:
10196 case BFD_RELOC_386_TLS_GD
:
10197 case BFD_RELOC_386_TLS_LDM
:
10198 case BFD_RELOC_386_TLS_LDO_32
:
10199 case BFD_RELOC_386_TLS_IE_32
:
10200 case BFD_RELOC_386_TLS_IE
:
10201 case BFD_RELOC_386_TLS_GOTIE
:
10202 case BFD_RELOC_386_TLS_LE_32
:
10203 case BFD_RELOC_386_TLS_LE
:
10204 case BFD_RELOC_386_TLS_GOTDESC
:
10205 case BFD_RELOC_386_TLS_DESC_CALL
:
10206 case BFD_RELOC_X86_64_TLSGD
:
10207 case BFD_RELOC_X86_64_TLSLD
:
10208 case BFD_RELOC_X86_64_DTPOFF32
:
10209 case BFD_RELOC_X86_64_DTPOFF64
:
10210 case BFD_RELOC_X86_64_GOTTPOFF
:
10211 case BFD_RELOC_X86_64_TPOFF32
:
10212 case BFD_RELOC_X86_64_TPOFF64
:
10213 case BFD_RELOC_X86_64_GOTOFF64
:
10214 case BFD_RELOC_X86_64_GOTPC32
:
10215 case BFD_RELOC_X86_64_GOT64
:
10216 case BFD_RELOC_X86_64_GOTPCREL64
:
10217 case BFD_RELOC_X86_64_GOTPC64
:
10218 case BFD_RELOC_X86_64_GOTPLT64
:
10219 case BFD_RELOC_X86_64_PLTOFF64
:
10220 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
10221 case BFD_RELOC_X86_64_TLSDESC_CALL
:
10222 case BFD_RELOC_RVA
:
10223 case BFD_RELOC_VTABLE_ENTRY
:
10224 case BFD_RELOC_VTABLE_INHERIT
:
10226 case BFD_RELOC_32_SECREL
:
10228 code
= fixp
->fx_r_type
;
10230 case BFD_RELOC_X86_64_32S
:
10231 if (!fixp
->fx_pcrel
)
10233 /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */
10234 code
= fixp
->fx_r_type
;
10238 if (fixp
->fx_pcrel
)
10240 switch (fixp
->fx_size
)
10243 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
10244 _("can not do %d byte pc-relative relocation"),
10246 code
= BFD_RELOC_32_PCREL
;
10248 case 1: code
= BFD_RELOC_8_PCREL
; break;
10249 case 2: code
= BFD_RELOC_16_PCREL
; break;
10250 case 4: code
= BFD_RELOC_32_PCREL
; break;
10252 case 8: code
= BFD_RELOC_64_PCREL
; break;
10258 switch (fixp
->fx_size
)
10261 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
10262 _("can not do %d byte relocation"),
10264 code
= BFD_RELOC_32
;
10266 case 1: code
= BFD_RELOC_8
; break;
10267 case 2: code
= BFD_RELOC_16
; break;
10268 case 4: code
= BFD_RELOC_32
; break;
10270 case 8: code
= BFD_RELOC_64
; break;
10277 if ((code
== BFD_RELOC_32
10278 || code
== BFD_RELOC_32_PCREL
10279 || code
== BFD_RELOC_X86_64_32S
)
10281 && fixp
->fx_addsy
== GOT_symbol
)
10284 code
= BFD_RELOC_386_GOTPC
;
10286 code
= BFD_RELOC_X86_64_GOTPC32
;
10288 if ((code
== BFD_RELOC_64
|| code
== BFD_RELOC_64_PCREL
)
10290 && fixp
->fx_addsy
== GOT_symbol
)
10292 code
= BFD_RELOC_X86_64_GOTPC64
;
10295 rel
= (arelent
*) xmalloc (sizeof (arelent
));
10296 rel
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
10297 *rel
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
10299 rel
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
10301 if (!use_rela_relocations
)
10303 /* HACK: Since i386 ELF uses Rel instead of Rela, encode the
10304 vtable entry to be used in the relocation's section offset. */
10305 if (fixp
->fx_r_type
== BFD_RELOC_VTABLE_ENTRY
)
10306 rel
->address
= fixp
->fx_offset
;
10307 #if defined (OBJ_COFF) && defined (TE_PE)
10308 else if (fixp
->fx_addsy
&& S_IS_WEAK (fixp
->fx_addsy
))
10309 rel
->addend
= fixp
->fx_addnumber
- (S_GET_VALUE (fixp
->fx_addsy
) * 2);
10314 /* Use the rela in 64bit mode. */
10317 if (disallow_64bit_reloc
)
10320 case BFD_RELOC_X86_64_DTPOFF64
:
10321 case BFD_RELOC_X86_64_TPOFF64
:
10322 case BFD_RELOC_64_PCREL
:
10323 case BFD_RELOC_X86_64_GOTOFF64
:
10324 case BFD_RELOC_X86_64_GOT64
:
10325 case BFD_RELOC_X86_64_GOTPCREL64
:
10326 case BFD_RELOC_X86_64_GOTPC64
:
10327 case BFD_RELOC_X86_64_GOTPLT64
:
10328 case BFD_RELOC_X86_64_PLTOFF64
:
10329 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
10330 _("cannot represent relocation type %s in x32 mode"),
10331 bfd_get_reloc_code_name (code
));
10337 if (!fixp
->fx_pcrel
)
10338 rel
->addend
= fixp
->fx_offset
;
10342 case BFD_RELOC_X86_64_PLT32
:
10343 case BFD_RELOC_X86_64_GOT32
:
10344 case BFD_RELOC_X86_64_GOTPCREL
:
10345 case BFD_RELOC_X86_64_TLSGD
:
10346 case BFD_RELOC_X86_64_TLSLD
:
10347 case BFD_RELOC_X86_64_GOTTPOFF
:
10348 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
10349 case BFD_RELOC_X86_64_TLSDESC_CALL
:
10350 rel
->addend
= fixp
->fx_offset
- fixp
->fx_size
;
10353 rel
->addend
= (section
->vma
10355 + fixp
->fx_addnumber
10356 + md_pcrel_from (fixp
));
10361 rel
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
10362 if (rel
->howto
== NULL
)
10364 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
10365 _("cannot represent relocation type %s"),
10366 bfd_get_reloc_code_name (code
));
10367 /* Set howto to a garbage value so that we can keep going. */
10368 rel
->howto
= bfd_reloc_type_lookup (stdoutput
, BFD_RELOC_32
);
10369 gas_assert (rel
->howto
!= NULL
);
10375 #include "tc-i386-intel.c"
10378 tc_x86_parse_to_dw2regnum (expressionS
*exp
)
10380 int saved_naked_reg
;
10381 char saved_register_dot
;
10383 saved_naked_reg
= allow_naked_reg
;
10384 allow_naked_reg
= 1;
10385 saved_register_dot
= register_chars
['.'];
10386 register_chars
['.'] = '.';
10387 allow_pseudo_reg
= 1;
10388 expression_and_evaluate (exp
);
10389 allow_pseudo_reg
= 0;
10390 register_chars
['.'] = saved_register_dot
;
10391 allow_naked_reg
= saved_naked_reg
;
10393 if (exp
->X_op
== O_register
&& exp
->X_add_number
>= 0)
10395 if ((addressT
) exp
->X_add_number
< i386_regtab_size
)
10397 exp
->X_op
= O_constant
;
10398 exp
->X_add_number
= i386_regtab
[exp
->X_add_number
]
10399 .dw2_regnum
[flag_code
>> 1];
10402 exp
->X_op
= O_illegal
;
10407 tc_x86_frame_initial_instructions (void)
10409 static unsigned int sp_regno
[2];
10411 if (!sp_regno
[flag_code
>> 1])
10413 char *saved_input
= input_line_pointer
;
10414 char sp
[][4] = {"esp", "rsp"};
10417 input_line_pointer
= sp
[flag_code
>> 1];
10418 tc_x86_parse_to_dw2regnum (&exp
);
10419 gas_assert (exp
.X_op
== O_constant
);
10420 sp_regno
[flag_code
>> 1] = exp
.X_add_number
;
10421 input_line_pointer
= saved_input
;
10424 cfi_add_CFA_def_cfa (sp_regno
[flag_code
>> 1], -x86_cie_data_alignment
);
10425 cfi_add_CFA_offset (x86_dwarf2_return_column
, x86_cie_data_alignment
);
10429 x86_dwarf2_addr_size (void)
10431 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
10432 if (x86_elf_abi
== X86_64_X32_ABI
)
10435 return bfd_arch_bits_per_address (stdoutput
) / 8;
10439 i386_elf_section_type (const char *str
, size_t len
)
10441 if (flag_code
== CODE_64BIT
10442 && len
== sizeof ("unwind") - 1
10443 && strncmp (str
, "unwind", 6) == 0)
10444 return SHT_X86_64_UNWIND
;
10451 i386_solaris_fix_up_eh_frame (segT sec
)
10453 if (flag_code
== CODE_64BIT
)
10454 elf_section_type (sec
) = SHT_X86_64_UNWIND
;
10460 tc_pe_dwarf2_emit_offset (symbolS
*symbol
, unsigned int size
)
10464 exp
.X_op
= O_secrel
;
10465 exp
.X_add_symbol
= symbol
;
10466 exp
.X_add_number
= 0;
10467 emit_expr (&exp
, size
);
10471 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10472 /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */
10475 x86_64_section_letter (int letter
, char **ptr_msg
)
10477 if (flag_code
== CODE_64BIT
)
10480 return SHF_X86_64_LARGE
;
10482 *ptr_msg
= _("bad .section directive: want a,l,w,x,M,S,G,T in string");
10485 *ptr_msg
= _("bad .section directive: want a,w,x,M,S,G,T in string");
10490 x86_64_section_word (char *str
, size_t len
)
10492 if (len
== 5 && flag_code
== CODE_64BIT
&& CONST_STRNEQ (str
, "large"))
10493 return SHF_X86_64_LARGE
;
10499 handle_large_common (int small ATTRIBUTE_UNUSED
)
10501 if (flag_code
!= CODE_64BIT
)
10503 s_comm_internal (0, elf_common_parse
);
10504 as_warn (_(".largecomm supported only in 64bit mode, producing .comm"));
10508 static segT lbss_section
;
10509 asection
*saved_com_section_ptr
= elf_com_section_ptr
;
10510 asection
*saved_bss_section
= bss_section
;
10512 if (lbss_section
== NULL
)
10514 flagword applicable
;
10515 segT seg
= now_seg
;
10516 subsegT subseg
= now_subseg
;
10518 /* The .lbss section is for local .largecomm symbols. */
10519 lbss_section
= subseg_new (".lbss", 0);
10520 applicable
= bfd_applicable_section_flags (stdoutput
);
10521 bfd_set_section_flags (stdoutput
, lbss_section
,
10522 applicable
& SEC_ALLOC
);
10523 seg_info (lbss_section
)->bss
= 1;
10525 subseg_set (seg
, subseg
);
10528 elf_com_section_ptr
= &_bfd_elf_large_com_section
;
10529 bss_section
= lbss_section
;
10531 s_comm_internal (0, elf_common_parse
);
10533 elf_com_section_ptr
= saved_com_section_ptr
;
10534 bss_section
= saved_bss_section
;
10537 #endif /* OBJ_ELF || OBJ_MAYBE_ELF */