1 /* tc-i386.c -- Assemble code for the Intel 80386
2 Copyright (C) 1989-2020 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 /* Intel 80386 machine specific gas.
22 Written by Eliot Dresselhaus (eliot@mgm.mit.edu).
23 x86_64 support by Jan Hubicka (jh@suse.cz)
24 VIA PadLock support by Michal Ludvig (mludvig@suse.cz)
25 Bugs & suggestions are completely welcome. This is free software.
26 Please help us make it better. */
29 #include "safe-ctype.h"
31 #include "dwarf2dbg.h"
32 #include "dw2gencfi.h"
33 #include "elf/x86-64.h"
34 #include "opcodes/i386-init.h"
39 #ifdef HAVE_SYS_PARAM_H
40 #include <sys/param.h>
43 #define INT_MAX (int) (((unsigned) (-1)) >> 1)
47 #ifndef REGISTER_WARNINGS
48 #define REGISTER_WARNINGS 1
51 #ifndef INFER_ADDR_PREFIX
52 #define INFER_ADDR_PREFIX 1
56 #define DEFAULT_ARCH "i386"
61 #define INLINE __inline__
67 /* Prefixes will be emitted in the order defined below.
68 WAIT_PREFIX must be the first prefix since FWAIT is really is an
69 instruction, and so must come before any prefixes.
70 The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX,
71 REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */
77 #define HLE_PREFIX REP_PREFIX
78 #define BND_PREFIX REP_PREFIX
80 #define REX_PREFIX 6 /* must come last. */
81 #define MAX_PREFIXES 7 /* max prefixes per opcode */
83 /* we define the syntax here (modulo base,index,scale syntax) */
84 #define REGISTER_PREFIX '%'
85 #define IMMEDIATE_PREFIX '$'
86 #define ABSOLUTE_PREFIX '*'
88 /* these are the instruction mnemonic suffixes in AT&T syntax or
89 memory operand size in Intel syntax. */
90 #define WORD_MNEM_SUFFIX 'w'
91 #define BYTE_MNEM_SUFFIX 'b'
92 #define SHORT_MNEM_SUFFIX 's'
93 #define LONG_MNEM_SUFFIX 'l'
94 #define QWORD_MNEM_SUFFIX 'q'
95 /* Intel Syntax. Use a non-ascii letter since since it never appears
97 #define LONG_DOUBLE_MNEM_SUFFIX '\1'
99 #define END_OF_INSN '\0'
101 /* This matches the C -> StaticRounding alias in the opcode table. */
102 #define commutative staticrounding
105 'templates' is for grouping together 'template' structures for opcodes
106 of the same name. This is only used for storing the insns in the grand
107 ole hash table of insns.
108 The templates themselves start at START and range up to (but not including)
113 const insn_template
*start
;
114 const insn_template
*end
;
118 /* 386 operand encoding bytes: see 386 book for details of this. */
121 unsigned int regmem
; /* codes register or memory operand */
122 unsigned int reg
; /* codes register operand (or extended opcode) */
123 unsigned int mode
; /* how to interpret regmem & reg */
127 /* x86-64 extension prefix. */
128 typedef int rex_byte
;
130 /* 386 opcode byte to code indirect addressing. */
139 /* x86 arch names, types and features */
142 const char *name
; /* arch name */
143 unsigned int len
; /* arch string length */
144 enum processor_type type
; /* arch type */
145 i386_cpu_flags flags
; /* cpu feature flags */
146 unsigned int skip
; /* show_arch should skip this. */
150 /* Used to turn off indicated flags. */
153 const char *name
; /* arch name */
154 unsigned int len
; /* arch string length */
155 i386_cpu_flags flags
; /* cpu feature flags */
159 static void update_code_flag (int, int);
160 static void set_code_flag (int);
161 static void set_16bit_gcc_code_flag (int);
162 static void set_intel_syntax (int);
163 static void set_intel_mnemonic (int);
164 static void set_allow_index_reg (int);
165 static void set_check (int);
166 static void set_cpu_arch (int);
168 static void pe_directive_secrel (int);
170 static void signed_cons (int);
171 static char *output_invalid (int c
);
172 static int i386_finalize_immediate (segT
, expressionS
*, i386_operand_type
,
174 static int i386_finalize_displacement (segT
, expressionS
*, i386_operand_type
,
176 static int i386_att_operand (char *);
177 static int i386_intel_operand (char *, int);
178 static int i386_intel_simplify (expressionS
*);
179 static int i386_intel_parse_name (const char *, expressionS
*);
180 static const reg_entry
*parse_register (char *, char **);
181 static char *parse_insn (char *, char *);
182 static char *parse_operands (char *, const char *);
183 static void swap_operands (void);
184 static void swap_2_operands (int, int);
185 static enum flag_code
i386_addressing_mode (void);
186 static void optimize_imm (void);
187 static void optimize_disp (void);
188 static const insn_template
*match_template (char);
189 static int check_string (void);
190 static int process_suffix (void);
191 static int check_byte_reg (void);
192 static int check_long_reg (void);
193 static int check_qword_reg (void);
194 static int check_word_reg (void);
195 static int finalize_imm (void);
196 static int process_operands (void);
197 static const seg_entry
*build_modrm_byte (void);
198 static void output_insn (void);
199 static void output_imm (fragS
*, offsetT
);
200 static void output_disp (fragS
*, offsetT
);
202 static void s_bss (int);
204 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
205 static void handle_large_common (int small ATTRIBUTE_UNUSED
);
207 /* GNU_PROPERTY_X86_ISA_1_USED. */
208 static unsigned int x86_isa_1_used
;
209 /* GNU_PROPERTY_X86_FEATURE_2_USED. */
210 static unsigned int x86_feature_2_used
;
211 /* Generate x86 used ISA and feature properties. */
212 static unsigned int x86_used_note
= DEFAULT_X86_USED_NOTE
;
215 static const char *default_arch
= DEFAULT_ARCH
;
217 /* This struct describes rounding control and SAE in the instruction. */
231 static struct RC_Operation rc_op
;
233 /* The struct describes masking, applied to OPERAND in the instruction.
234 MASK is a pointer to the corresponding mask register. ZEROING tells
235 whether merging or zeroing mask is used. */
236 struct Mask_Operation
238 const reg_entry
*mask
;
239 unsigned int zeroing
;
240 /* The operand where this operation is associated. */
244 static struct Mask_Operation mask_op
;
246 /* The struct describes broadcasting, applied to OPERAND. FACTOR is
248 struct Broadcast_Operation
250 /* Type of broadcast: {1to2}, {1to4}, {1to8}, or {1to16}. */
253 /* Index of broadcasted operand. */
256 /* Number of bytes to broadcast. */
260 static struct Broadcast_Operation broadcast_op
;
265 /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */
266 unsigned char bytes
[4];
268 /* Destination or source register specifier. */
269 const reg_entry
*register_specifier
;
272 /* 'md_assemble ()' gathers together information and puts it into a
279 const reg_entry
*regs
;
284 operand_size_mismatch
,
285 operand_type_mismatch
,
286 register_type_mismatch
,
287 number_of_operands_mismatch
,
288 invalid_instruction_suffix
,
290 unsupported_with_intel_mnemonic
,
293 invalid_vsib_address
,
294 invalid_vector_register_set
,
295 unsupported_vector_index_register
,
296 unsupported_broadcast
,
299 mask_not_on_destination
,
302 rc_sae_operand_not_last_imm
,
303 invalid_register_operand
,
308 /* TM holds the template for the insn were currently assembling. */
311 /* SUFFIX holds the instruction size suffix for byte, word, dword
312 or qword, if given. */
315 /* OPERANDS gives the number of given operands. */
316 unsigned int operands
;
318 /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number
319 of given register, displacement, memory operands and immediate
321 unsigned int reg_operands
, disp_operands
, mem_operands
, imm_operands
;
323 /* TYPES [i] is the type (see above #defines) which tells us how to
324 use OP[i] for the corresponding operand. */
325 i386_operand_type types
[MAX_OPERANDS
];
327 /* Displacement expression, immediate expression, or register for each
329 union i386_op op
[MAX_OPERANDS
];
331 /* Flags for operands. */
332 unsigned int flags
[MAX_OPERANDS
];
333 #define Operand_PCrel 1
334 #define Operand_Mem 2
336 /* Relocation type for operand */
337 enum bfd_reloc_code_real reloc
[MAX_OPERANDS
];
339 /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode
340 the base index byte below. */
341 const reg_entry
*base_reg
;
342 const reg_entry
*index_reg
;
343 unsigned int log2_scale_factor
;
345 /* SEG gives the seg_entries of this insn. They are zero unless
346 explicit segment overrides are given. */
347 const seg_entry
*seg
[2];
349 /* Copied first memory operand string, for re-checking. */
352 /* PREFIX holds all the given prefix opcodes (usually null).
353 PREFIXES is the number of prefix opcodes. */
354 unsigned int prefixes
;
355 unsigned char prefix
[MAX_PREFIXES
];
357 /* The operand to a branch insn indicates an absolute branch. */
358 bfd_boolean jumpabsolute
;
360 /* Has MMX register operands. */
361 bfd_boolean has_regmmx
;
363 /* Has XMM register operands. */
364 bfd_boolean has_regxmm
;
366 /* Has YMM register operands. */
367 bfd_boolean has_regymm
;
369 /* Has ZMM register operands. */
370 bfd_boolean has_regzmm
;
372 /* Has GOTPC or TLS relocation. */
373 bfd_boolean has_gotpc_tls_reloc
;
375 /* RM and SIB are the modrm byte and the sib byte where the
376 addressing modes of this insn are encoded. */
383 /* Masking attributes. */
384 struct Mask_Operation
*mask
;
386 /* Rounding control and SAE attributes. */
387 struct RC_Operation
*rounding
;
389 /* Broadcasting attributes. */
390 struct Broadcast_Operation
*broadcast
;
392 /* Compressed disp8*N attribute. */
393 unsigned int memshift
;
395 /* Prefer load or store in encoding. */
398 dir_encoding_default
= 0,
404 /* Prefer 8bit or 32bit displacement in encoding. */
407 disp_encoding_default
= 0,
412 /* Prefer the REX byte in encoding. */
413 bfd_boolean rex_encoding
;
415 /* Disable instruction size optimization. */
416 bfd_boolean no_optimize
;
418 /* How to encode vector instructions. */
421 vex_encoding_default
= 0,
428 const char *rep_prefix
;
431 const char *hle_prefix
;
433 /* Have BND prefix. */
434 const char *bnd_prefix
;
436 /* Have NOTRACK prefix. */
437 const char *notrack_prefix
;
440 enum i386_error error
;
443 typedef struct _i386_insn i386_insn
;
445 /* Link RC type with corresponding string, that'll be looked for in
454 static const struct RC_name RC_NamesTable
[] =
456 { rne
, STRING_COMMA_LEN ("rn-sae") },
457 { rd
, STRING_COMMA_LEN ("rd-sae") },
458 { ru
, STRING_COMMA_LEN ("ru-sae") },
459 { rz
, STRING_COMMA_LEN ("rz-sae") },
460 { saeonly
, STRING_COMMA_LEN ("sae") },
463 /* List of chars besides those in app.c:symbol_chars that can start an
464 operand. Used to prevent the scrubber eating vital white-space. */
465 const char extra_symbol_chars
[] = "*%-([{}"
474 #if (defined (TE_I386AIX) \
475 || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \
476 && !defined (TE_GNU) \
477 && !defined (TE_LINUX) \
478 && !defined (TE_NACL) \
479 && !defined (TE_FreeBSD) \
480 && !defined (TE_DragonFly) \
481 && !defined (TE_NetBSD)))
482 /* This array holds the chars that always start a comment. If the
483 pre-processor is disabled, these aren't very useful. The option
484 --divide will remove '/' from this list. */
485 const char *i386_comment_chars
= "#/";
486 #define SVR4_COMMENT_CHARS 1
487 #define PREFIX_SEPARATOR '\\'
490 const char *i386_comment_chars
= "#";
491 #define PREFIX_SEPARATOR '/'
494 /* This array holds the chars that only start a comment at the beginning of
495 a line. If the line seems to have the form '# 123 filename'
496 .line and .file directives will appear in the pre-processed output.
497 Note that input_file.c hand checks for '#' at the beginning of the
498 first line of the input file. This is because the compiler outputs
499 #NO_APP at the beginning of its output.
500 Also note that comments started like this one will always work if
501 '/' isn't otherwise defined. */
502 const char line_comment_chars
[] = "#/";
504 const char line_separator_chars
[] = ";";
506 /* Chars that can be used to separate mant from exp in floating point
508 const char EXP_CHARS
[] = "eE";
510 /* Chars that mean this number is a floating point constant
513 const char FLT_CHARS
[] = "fFdDxX";
515 /* Tables for lexical analysis. */
516 static char mnemonic_chars
[256];
517 static char register_chars
[256];
518 static char operand_chars
[256];
519 static char identifier_chars
[256];
520 static char digit_chars
[256];
522 /* Lexical macros. */
523 #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x])
524 #define is_operand_char(x) (operand_chars[(unsigned char) x])
525 #define is_register_char(x) (register_chars[(unsigned char) x])
526 #define is_space_char(x) ((x) == ' ')
527 #define is_identifier_char(x) (identifier_chars[(unsigned char) x])
528 #define is_digit_char(x) (digit_chars[(unsigned char) x])
530 /* All non-digit non-letter characters that may occur in an operand. */
531 static char operand_special_chars
[] = "%$-+(,)*._~/<>|&^!:[@]";
533 /* md_assemble() always leaves the strings it's passed unaltered. To
534 effect this we maintain a stack of saved characters that we've smashed
535 with '\0's (indicating end of strings for various sub-fields of the
536 assembler instruction). */
537 static char save_stack
[32];
538 static char *save_stack_p
;
539 #define END_STRING_AND_SAVE(s) \
540 do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0)
541 #define RESTORE_END_STRING(s) \
542 do { *(s) = *--save_stack_p; } while (0)
544 /* The instruction we're assembling. */
547 /* Possible templates for current insn. */
548 static const templates
*current_templates
;
550 /* Per instruction expressionS buffers: max displacements & immediates. */
551 static expressionS disp_expressions
[MAX_MEMORY_OPERANDS
];
552 static expressionS im_expressions
[MAX_IMMEDIATE_OPERANDS
];
554 /* Current operand we are working on. */
555 static int this_operand
= -1;
557 /* We support four different modes. FLAG_CODE variable is used to distinguish
565 static enum flag_code flag_code
;
566 static unsigned int object_64bit
;
567 static unsigned int disallow_64bit_reloc
;
568 static int use_rela_relocations
= 0;
569 /* __tls_get_addr/___tls_get_addr symbol for TLS. */
570 static const char *tls_get_addr
;
572 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
573 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
574 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
576 /* The ELF ABI to use. */
584 static enum x86_elf_abi x86_elf_abi
= I386_ABI
;
587 #if defined (TE_PE) || defined (TE_PEP)
588 /* Use big object file format. */
589 static int use_big_obj
= 0;
592 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
593 /* 1 if generating code for a shared library. */
594 static int shared
= 0;
597 /* 1 for intel syntax,
599 static int intel_syntax
= 0;
601 /* 1 for Intel64 ISA,
605 /* 1 for intel mnemonic,
606 0 if att mnemonic. */
607 static int intel_mnemonic
= !SYSV386_COMPAT
;
609 /* 1 if pseudo registers are permitted. */
610 static int allow_pseudo_reg
= 0;
612 /* 1 if register prefix % not required. */
613 static int allow_naked_reg
= 0;
615 /* 1 if the assembler should add BND prefix for all control-transferring
616 instructions supporting it, even if this prefix wasn't specified
618 static int add_bnd_prefix
= 0;
620 /* 1 if pseudo index register, eiz/riz, is allowed . */
621 static int allow_index_reg
= 0;
623 /* 1 if the assembler should ignore LOCK prefix, even if it was
624 specified explicitly. */
625 static int omit_lock_prefix
= 0;
627 /* 1 if the assembler should encode lfence, mfence, and sfence as
628 "lock addl $0, (%{re}sp)". */
629 static int avoid_fence
= 0;
631 /* Type of the previous instruction. */
646 /* 1 if the assembler should generate relax relocations. */
648 static int generate_relax_relocations
649 = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS
;
651 static enum check_kind
657 sse_check
, operand_check
= check_warning
;
659 /* Non-zero if branches should be aligned within power of 2 boundary. */
660 static int align_branch_power
= 0;
662 /* Types of branches to align. */
663 enum align_branch_kind
665 align_branch_none
= 0,
666 align_branch_jcc
= 1,
667 align_branch_fused
= 2,
668 align_branch_jmp
= 3,
669 align_branch_call
= 4,
670 align_branch_indirect
= 5,
674 /* Type bits of branches to align. */
675 enum align_branch_bit
677 align_branch_jcc_bit
= 1 << align_branch_jcc
,
678 align_branch_fused_bit
= 1 << align_branch_fused
,
679 align_branch_jmp_bit
= 1 << align_branch_jmp
,
680 align_branch_call_bit
= 1 << align_branch_call
,
681 align_branch_indirect_bit
= 1 << align_branch_indirect
,
682 align_branch_ret_bit
= 1 << align_branch_ret
685 static unsigned int align_branch
= (align_branch_jcc_bit
686 | align_branch_fused_bit
687 | align_branch_jmp_bit
);
689 /* The maximum padding size for fused jcc. CMP like instruction can
690 be 9 bytes and jcc can be 6 bytes. Leave room just in case for
692 #define MAX_FUSED_JCC_PADDING_SIZE 20
694 /* The maximum number of prefixes added for an instruction. */
695 static unsigned int align_branch_prefix_size
= 5;
698 1. Clear the REX_W bit with register operand if possible.
699 2. Above plus use 128bit vector instruction to clear the full vector
702 static int optimize
= 0;
705 1. Clear the REX_W bit with register operand if possible.
706 2. Above plus use 128bit vector instruction to clear the full vector
708 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to
711 static int optimize_for_space
= 0;
713 /* Register prefix used for error message. */
714 static const char *register_prefix
= "%";
716 /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter,
717 leave, push, and pop instructions so that gcc has the same stack
718 frame as in 32 bit mode. */
719 static char stackop_size
= '\0';
721 /* Non-zero to optimize code alignment. */
722 int optimize_align_code
= 1;
724 /* Non-zero to quieten some warnings. */
725 static int quiet_warnings
= 0;
728 static const char *cpu_arch_name
= NULL
;
729 static char *cpu_sub_arch_name
= NULL
;
731 /* CPU feature flags. */
732 static i386_cpu_flags cpu_arch_flags
= CPU_UNKNOWN_FLAGS
;
734 /* If we have selected a cpu we are generating instructions for. */
735 static int cpu_arch_tune_set
= 0;
737 /* Cpu we are generating instructions for. */
738 enum processor_type cpu_arch_tune
= PROCESSOR_UNKNOWN
;
740 /* CPU feature flags of cpu we are generating instructions for. */
741 static i386_cpu_flags cpu_arch_tune_flags
;
743 /* CPU instruction set architecture used. */
744 enum processor_type cpu_arch_isa
= PROCESSOR_UNKNOWN
;
746 /* CPU feature flags of instruction set architecture used. */
747 i386_cpu_flags cpu_arch_isa_flags
;
749 /* If set, conditional jumps are not automatically promoted to handle
750 larger than a byte offset. */
751 static unsigned int no_cond_jump_promotion
= 0;
753 /* Encode SSE instructions with VEX prefix. */
754 static unsigned int sse2avx
;
756 /* Encode scalar AVX instructions with specific vector length. */
763 /* Encode VEX WIG instructions with specific vex.w. */
770 /* Encode scalar EVEX LIG instructions with specific vector length. */
778 /* Encode EVEX WIG instructions with specific evex.w. */
785 /* Value to encode in EVEX RC bits, for SAE-only instructions. */
786 static enum rc_type evexrcig
= rne
;
788 /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */
789 static symbolS
*GOT_symbol
;
791 /* The dwarf2 return column, adjusted for 32 or 64 bit. */
792 unsigned int x86_dwarf2_return_column
;
794 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
795 int x86_cie_data_alignment
;
797 /* Interface to relax_segment.
798 There are 3 major relax states for 386 jump insns because the
799 different types of jumps add different sizes to frags when we're
800 figuring out what sort of jump to choose to reach a given label.
802 BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING are used to align
803 branches which are handled by md_estimate_size_before_relax() and
804 i386_generic_table_relax_frag(). */
807 #define UNCOND_JUMP 0
809 #define COND_JUMP86 2
810 #define BRANCH_PADDING 3
811 #define BRANCH_PREFIX 4
812 #define FUSED_JCC_PADDING 5
817 #define SMALL16 (SMALL | CODE16)
819 #define BIG16 (BIG | CODE16)
823 #define INLINE __inline__
829 #define ENCODE_RELAX_STATE(type, size) \
830 ((relax_substateT) (((type) << 2) | (size)))
831 #define TYPE_FROM_RELAX_STATE(s) \
833 #define DISP_SIZE_FROM_RELAX_STATE(s) \
834 ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1)))
836 /* This table is used by relax_frag to promote short jumps to long
837 ones where necessary. SMALL (short) jumps may be promoted to BIG
838 (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We
839 don't allow a short jump in a 32 bit code segment to be promoted to
840 a 16 bit offset jump because it's slower (requires data size
841 prefix), and doesn't work, unless the destination is in the bottom
842 64k of the code segment (The top 16 bits of eip are zeroed). */
844 const relax_typeS md_relax_table
[] =
847 1) most positive reach of this state,
848 2) most negative reach of this state,
849 3) how many bytes this mode will have in the variable part of the frag
850 4) which index into the table to try if we can't fit into this one. */
852 /* UNCOND_JUMP states. */
853 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG
)},
854 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG16
)},
855 /* dword jmp adds 4 bytes to frag:
856 0 extra opcode bytes, 4 displacement bytes. */
858 /* word jmp adds 2 byte2 to frag:
859 0 extra opcode bytes, 2 displacement bytes. */
862 /* COND_JUMP states. */
863 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP
, BIG
)},
864 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP
, BIG16
)},
865 /* dword conditionals adds 5 bytes to frag:
866 1 extra opcode byte, 4 displacement bytes. */
868 /* word conditionals add 3 bytes to frag:
869 1 extra opcode byte, 2 displacement bytes. */
872 /* COND_JUMP86 states. */
873 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86
, BIG
)},
874 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86
, BIG16
)},
875 /* dword conditionals adds 5 bytes to frag:
876 1 extra opcode byte, 4 displacement bytes. */
878 /* word conditionals add 4 bytes to frag:
879 1 displacement byte and a 3 byte long branch insn. */
883 static const arch_entry cpu_arch
[] =
885 /* Do not replace the first two entries - i386_target_format()
886 relies on them being there in this order. */
887 { STRING_COMMA_LEN ("generic32"), PROCESSOR_GENERIC32
,
888 CPU_GENERIC32_FLAGS
, 0 },
889 { STRING_COMMA_LEN ("generic64"), PROCESSOR_GENERIC64
,
890 CPU_GENERIC64_FLAGS
, 0 },
891 { STRING_COMMA_LEN ("i8086"), PROCESSOR_UNKNOWN
,
893 { STRING_COMMA_LEN ("i186"), PROCESSOR_UNKNOWN
,
895 { STRING_COMMA_LEN ("i286"), PROCESSOR_UNKNOWN
,
897 { STRING_COMMA_LEN ("i386"), PROCESSOR_I386
,
899 { STRING_COMMA_LEN ("i486"), PROCESSOR_I486
,
901 { STRING_COMMA_LEN ("i586"), PROCESSOR_PENTIUM
,
903 { STRING_COMMA_LEN ("i686"), PROCESSOR_PENTIUMPRO
,
905 { STRING_COMMA_LEN ("pentium"), PROCESSOR_PENTIUM
,
907 { STRING_COMMA_LEN ("pentiumpro"), PROCESSOR_PENTIUMPRO
,
908 CPU_PENTIUMPRO_FLAGS
, 0 },
909 { STRING_COMMA_LEN ("pentiumii"), PROCESSOR_PENTIUMPRO
,
911 { STRING_COMMA_LEN ("pentiumiii"),PROCESSOR_PENTIUMPRO
,
913 { STRING_COMMA_LEN ("pentium4"), PROCESSOR_PENTIUM4
,
915 { STRING_COMMA_LEN ("prescott"), PROCESSOR_NOCONA
,
917 { STRING_COMMA_LEN ("nocona"), PROCESSOR_NOCONA
,
918 CPU_NOCONA_FLAGS
, 0 },
919 { STRING_COMMA_LEN ("yonah"), PROCESSOR_CORE
,
921 { STRING_COMMA_LEN ("core"), PROCESSOR_CORE
,
923 { STRING_COMMA_LEN ("merom"), PROCESSOR_CORE2
,
924 CPU_CORE2_FLAGS
, 1 },
925 { STRING_COMMA_LEN ("core2"), PROCESSOR_CORE2
,
926 CPU_CORE2_FLAGS
, 0 },
927 { STRING_COMMA_LEN ("corei7"), PROCESSOR_COREI7
,
928 CPU_COREI7_FLAGS
, 0 },
929 { STRING_COMMA_LEN ("l1om"), PROCESSOR_L1OM
,
931 { STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM
,
933 { STRING_COMMA_LEN ("iamcu"), PROCESSOR_IAMCU
,
934 CPU_IAMCU_FLAGS
, 0 },
935 { STRING_COMMA_LEN ("k6"), PROCESSOR_K6
,
937 { STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6
,
939 { STRING_COMMA_LEN ("athlon"), PROCESSOR_ATHLON
,
940 CPU_ATHLON_FLAGS
, 0 },
941 { STRING_COMMA_LEN ("sledgehammer"), PROCESSOR_K8
,
943 { STRING_COMMA_LEN ("opteron"), PROCESSOR_K8
,
945 { STRING_COMMA_LEN ("k8"), PROCESSOR_K8
,
947 { STRING_COMMA_LEN ("amdfam10"), PROCESSOR_AMDFAM10
,
948 CPU_AMDFAM10_FLAGS
, 0 },
949 { STRING_COMMA_LEN ("bdver1"), PROCESSOR_BD
,
950 CPU_BDVER1_FLAGS
, 0 },
951 { STRING_COMMA_LEN ("bdver2"), PROCESSOR_BD
,
952 CPU_BDVER2_FLAGS
, 0 },
953 { STRING_COMMA_LEN ("bdver3"), PROCESSOR_BD
,
954 CPU_BDVER3_FLAGS
, 0 },
955 { STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD
,
956 CPU_BDVER4_FLAGS
, 0 },
957 { STRING_COMMA_LEN ("znver1"), PROCESSOR_ZNVER
,
958 CPU_ZNVER1_FLAGS
, 0 },
959 { STRING_COMMA_LEN ("znver2"), PROCESSOR_ZNVER
,
960 CPU_ZNVER2_FLAGS
, 0 },
961 { STRING_COMMA_LEN ("btver1"), PROCESSOR_BT
,
962 CPU_BTVER1_FLAGS
, 0 },
963 { STRING_COMMA_LEN ("btver2"), PROCESSOR_BT
,
964 CPU_BTVER2_FLAGS
, 0 },
965 { STRING_COMMA_LEN (".8087"), PROCESSOR_UNKNOWN
,
967 { STRING_COMMA_LEN (".287"), PROCESSOR_UNKNOWN
,
969 { STRING_COMMA_LEN (".387"), PROCESSOR_UNKNOWN
,
971 { STRING_COMMA_LEN (".687"), PROCESSOR_UNKNOWN
,
973 { STRING_COMMA_LEN (".cmov"), PROCESSOR_UNKNOWN
,
975 { STRING_COMMA_LEN (".fxsr"), PROCESSOR_UNKNOWN
,
977 { STRING_COMMA_LEN (".mmx"), PROCESSOR_UNKNOWN
,
979 { STRING_COMMA_LEN (".sse"), PROCESSOR_UNKNOWN
,
981 { STRING_COMMA_LEN (".sse2"), PROCESSOR_UNKNOWN
,
983 { STRING_COMMA_LEN (".sse3"), PROCESSOR_UNKNOWN
,
985 { STRING_COMMA_LEN (".ssse3"), PROCESSOR_UNKNOWN
,
986 CPU_SSSE3_FLAGS
, 0 },
987 { STRING_COMMA_LEN (".sse4.1"), PROCESSOR_UNKNOWN
,
988 CPU_SSE4_1_FLAGS
, 0 },
989 { STRING_COMMA_LEN (".sse4.2"), PROCESSOR_UNKNOWN
,
990 CPU_SSE4_2_FLAGS
, 0 },
991 { STRING_COMMA_LEN (".sse4"), PROCESSOR_UNKNOWN
,
992 CPU_SSE4_2_FLAGS
, 0 },
993 { STRING_COMMA_LEN (".avx"), PROCESSOR_UNKNOWN
,
995 { STRING_COMMA_LEN (".avx2"), PROCESSOR_UNKNOWN
,
997 { STRING_COMMA_LEN (".avx512f"), PROCESSOR_UNKNOWN
,
998 CPU_AVX512F_FLAGS
, 0 },
999 { STRING_COMMA_LEN (".avx512cd"), PROCESSOR_UNKNOWN
,
1000 CPU_AVX512CD_FLAGS
, 0 },
1001 { STRING_COMMA_LEN (".avx512er"), PROCESSOR_UNKNOWN
,
1002 CPU_AVX512ER_FLAGS
, 0 },
1003 { STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN
,
1004 CPU_AVX512PF_FLAGS
, 0 },
1005 { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN
,
1006 CPU_AVX512DQ_FLAGS
, 0 },
1007 { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN
,
1008 CPU_AVX512BW_FLAGS
, 0 },
1009 { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN
,
1010 CPU_AVX512VL_FLAGS
, 0 },
1011 { STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN
,
1013 { STRING_COMMA_LEN (".vmfunc"), PROCESSOR_UNKNOWN
,
1014 CPU_VMFUNC_FLAGS
, 0 },
1015 { STRING_COMMA_LEN (".smx"), PROCESSOR_UNKNOWN
,
1017 { STRING_COMMA_LEN (".xsave"), PROCESSOR_UNKNOWN
,
1018 CPU_XSAVE_FLAGS
, 0 },
1019 { STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN
,
1020 CPU_XSAVEOPT_FLAGS
, 0 },
1021 { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN
,
1022 CPU_XSAVEC_FLAGS
, 0 },
1023 { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN
,
1024 CPU_XSAVES_FLAGS
, 0 },
1025 { STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN
,
1027 { STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN
,
1028 CPU_PCLMUL_FLAGS
, 0 },
1029 { STRING_COMMA_LEN (".clmul"), PROCESSOR_UNKNOWN
,
1030 CPU_PCLMUL_FLAGS
, 1 },
1031 { STRING_COMMA_LEN (".fsgsbase"), PROCESSOR_UNKNOWN
,
1032 CPU_FSGSBASE_FLAGS
, 0 },
1033 { STRING_COMMA_LEN (".rdrnd"), PROCESSOR_UNKNOWN
,
1034 CPU_RDRND_FLAGS
, 0 },
1035 { STRING_COMMA_LEN (".f16c"), PROCESSOR_UNKNOWN
,
1036 CPU_F16C_FLAGS
, 0 },
1037 { STRING_COMMA_LEN (".bmi2"), PROCESSOR_UNKNOWN
,
1038 CPU_BMI2_FLAGS
, 0 },
1039 { STRING_COMMA_LEN (".fma"), PROCESSOR_UNKNOWN
,
1041 { STRING_COMMA_LEN (".fma4"), PROCESSOR_UNKNOWN
,
1042 CPU_FMA4_FLAGS
, 0 },
1043 { STRING_COMMA_LEN (".xop"), PROCESSOR_UNKNOWN
,
1045 { STRING_COMMA_LEN (".lwp"), PROCESSOR_UNKNOWN
,
1047 { STRING_COMMA_LEN (".movbe"), PROCESSOR_UNKNOWN
,
1048 CPU_MOVBE_FLAGS
, 0 },
1049 { STRING_COMMA_LEN (".cx16"), PROCESSOR_UNKNOWN
,
1050 CPU_CX16_FLAGS
, 0 },
1051 { STRING_COMMA_LEN (".ept"), PROCESSOR_UNKNOWN
,
1053 { STRING_COMMA_LEN (".lzcnt"), PROCESSOR_UNKNOWN
,
1054 CPU_LZCNT_FLAGS
, 0 },
1055 { STRING_COMMA_LEN (".hle"), PROCESSOR_UNKNOWN
,
1057 { STRING_COMMA_LEN (".rtm"), PROCESSOR_UNKNOWN
,
1059 { STRING_COMMA_LEN (".invpcid"), PROCESSOR_UNKNOWN
,
1060 CPU_INVPCID_FLAGS
, 0 },
1061 { STRING_COMMA_LEN (".clflush"), PROCESSOR_UNKNOWN
,
1062 CPU_CLFLUSH_FLAGS
, 0 },
1063 { STRING_COMMA_LEN (".nop"), PROCESSOR_UNKNOWN
,
1065 { STRING_COMMA_LEN (".syscall"), PROCESSOR_UNKNOWN
,
1066 CPU_SYSCALL_FLAGS
, 0 },
1067 { STRING_COMMA_LEN (".rdtscp"), PROCESSOR_UNKNOWN
,
1068 CPU_RDTSCP_FLAGS
, 0 },
1069 { STRING_COMMA_LEN (".3dnow"), PROCESSOR_UNKNOWN
,
1070 CPU_3DNOW_FLAGS
, 0 },
1071 { STRING_COMMA_LEN (".3dnowa"), PROCESSOR_UNKNOWN
,
1072 CPU_3DNOWA_FLAGS
, 0 },
1073 { STRING_COMMA_LEN (".padlock"), PROCESSOR_UNKNOWN
,
1074 CPU_PADLOCK_FLAGS
, 0 },
1075 { STRING_COMMA_LEN (".pacifica"), PROCESSOR_UNKNOWN
,
1076 CPU_SVME_FLAGS
, 1 },
1077 { STRING_COMMA_LEN (".svme"), PROCESSOR_UNKNOWN
,
1078 CPU_SVME_FLAGS
, 0 },
1079 { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN
,
1080 CPU_SSE4A_FLAGS
, 0 },
1081 { STRING_COMMA_LEN (".abm"), PROCESSOR_UNKNOWN
,
1083 { STRING_COMMA_LEN (".bmi"), PROCESSOR_UNKNOWN
,
1085 { STRING_COMMA_LEN (".tbm"), PROCESSOR_UNKNOWN
,
1087 { STRING_COMMA_LEN (".adx"), PROCESSOR_UNKNOWN
,
1089 { STRING_COMMA_LEN (".rdseed"), PROCESSOR_UNKNOWN
,
1090 CPU_RDSEED_FLAGS
, 0 },
1091 { STRING_COMMA_LEN (".prfchw"), PROCESSOR_UNKNOWN
,
1092 CPU_PRFCHW_FLAGS
, 0 },
1093 { STRING_COMMA_LEN (".smap"), PROCESSOR_UNKNOWN
,
1094 CPU_SMAP_FLAGS
, 0 },
1095 { STRING_COMMA_LEN (".mpx"), PROCESSOR_UNKNOWN
,
1097 { STRING_COMMA_LEN (".sha"), PROCESSOR_UNKNOWN
,
1099 { STRING_COMMA_LEN (".clflushopt"), PROCESSOR_UNKNOWN
,
1100 CPU_CLFLUSHOPT_FLAGS
, 0 },
1101 { STRING_COMMA_LEN (".prefetchwt1"), PROCESSOR_UNKNOWN
,
1102 CPU_PREFETCHWT1_FLAGS
, 0 },
1103 { STRING_COMMA_LEN (".se1"), PROCESSOR_UNKNOWN
,
1105 { STRING_COMMA_LEN (".clwb"), PROCESSOR_UNKNOWN
,
1106 CPU_CLWB_FLAGS
, 0 },
1107 { STRING_COMMA_LEN (".avx512ifma"), PROCESSOR_UNKNOWN
,
1108 CPU_AVX512IFMA_FLAGS
, 0 },
1109 { STRING_COMMA_LEN (".avx512vbmi"), PROCESSOR_UNKNOWN
,
1110 CPU_AVX512VBMI_FLAGS
, 0 },
1111 { STRING_COMMA_LEN (".avx512_4fmaps"), PROCESSOR_UNKNOWN
,
1112 CPU_AVX512_4FMAPS_FLAGS
, 0 },
1113 { STRING_COMMA_LEN (".avx512_4vnniw"), PROCESSOR_UNKNOWN
,
1114 CPU_AVX512_4VNNIW_FLAGS
, 0 },
1115 { STRING_COMMA_LEN (".avx512_vpopcntdq"), PROCESSOR_UNKNOWN
,
1116 CPU_AVX512_VPOPCNTDQ_FLAGS
, 0 },
1117 { STRING_COMMA_LEN (".avx512_vbmi2"), PROCESSOR_UNKNOWN
,
1118 CPU_AVX512_VBMI2_FLAGS
, 0 },
1119 { STRING_COMMA_LEN (".avx512_vnni"), PROCESSOR_UNKNOWN
,
1120 CPU_AVX512_VNNI_FLAGS
, 0 },
1121 { STRING_COMMA_LEN (".avx512_bitalg"), PROCESSOR_UNKNOWN
,
1122 CPU_AVX512_BITALG_FLAGS
, 0 },
1123 { STRING_COMMA_LEN (".clzero"), PROCESSOR_UNKNOWN
,
1124 CPU_CLZERO_FLAGS
, 0 },
1125 { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN
,
1126 CPU_MWAITX_FLAGS
, 0 },
1127 { STRING_COMMA_LEN (".ospke"), PROCESSOR_UNKNOWN
,
1128 CPU_OSPKE_FLAGS
, 0 },
1129 { STRING_COMMA_LEN (".rdpid"), PROCESSOR_UNKNOWN
,
1130 CPU_RDPID_FLAGS
, 0 },
1131 { STRING_COMMA_LEN (".ptwrite"), PROCESSOR_UNKNOWN
,
1132 CPU_PTWRITE_FLAGS
, 0 },
1133 { STRING_COMMA_LEN (".ibt"), PROCESSOR_UNKNOWN
,
1135 { STRING_COMMA_LEN (".shstk"), PROCESSOR_UNKNOWN
,
1136 CPU_SHSTK_FLAGS
, 0 },
1137 { STRING_COMMA_LEN (".gfni"), PROCESSOR_UNKNOWN
,
1138 CPU_GFNI_FLAGS
, 0 },
1139 { STRING_COMMA_LEN (".vaes"), PROCESSOR_UNKNOWN
,
1140 CPU_VAES_FLAGS
, 0 },
1141 { STRING_COMMA_LEN (".vpclmulqdq"), PROCESSOR_UNKNOWN
,
1142 CPU_VPCLMULQDQ_FLAGS
, 0 },
1143 { STRING_COMMA_LEN (".wbnoinvd"), PROCESSOR_UNKNOWN
,
1144 CPU_WBNOINVD_FLAGS
, 0 },
1145 { STRING_COMMA_LEN (".pconfig"), PROCESSOR_UNKNOWN
,
1146 CPU_PCONFIG_FLAGS
, 0 },
1147 { STRING_COMMA_LEN (".waitpkg"), PROCESSOR_UNKNOWN
,
1148 CPU_WAITPKG_FLAGS
, 0 },
1149 { STRING_COMMA_LEN (".cldemote"), PROCESSOR_UNKNOWN
,
1150 CPU_CLDEMOTE_FLAGS
, 0 },
1151 { STRING_COMMA_LEN (".movdiri"), PROCESSOR_UNKNOWN
,
1152 CPU_MOVDIRI_FLAGS
, 0 },
1153 { STRING_COMMA_LEN (".movdir64b"), PROCESSOR_UNKNOWN
,
1154 CPU_MOVDIR64B_FLAGS
, 0 },
1155 { STRING_COMMA_LEN (".avx512_bf16"), PROCESSOR_UNKNOWN
,
1156 CPU_AVX512_BF16_FLAGS
, 0 },
1157 { STRING_COMMA_LEN (".avx512_vp2intersect"), PROCESSOR_UNKNOWN
,
1158 CPU_AVX512_VP2INTERSECT_FLAGS
, 0 },
1159 { STRING_COMMA_LEN (".enqcmd"), PROCESSOR_UNKNOWN
,
1160 CPU_ENQCMD_FLAGS
, 0 },
1161 { STRING_COMMA_LEN (".rdpru"), PROCESSOR_UNKNOWN
,
1162 CPU_RDPRU_FLAGS
, 0 },
1163 { STRING_COMMA_LEN (".mcommit"), PROCESSOR_UNKNOWN
,
1164 CPU_MCOMMIT_FLAGS
, 0 },
1167 static const noarch_entry cpu_noarch
[] =
1169 { STRING_COMMA_LEN ("no87"), CPU_ANY_X87_FLAGS
},
1170 { STRING_COMMA_LEN ("no287"), CPU_ANY_287_FLAGS
},
1171 { STRING_COMMA_LEN ("no387"), CPU_ANY_387_FLAGS
},
1172 { STRING_COMMA_LEN ("no687"), CPU_ANY_687_FLAGS
},
1173 { STRING_COMMA_LEN ("nocmov"), CPU_ANY_CMOV_FLAGS
},
1174 { STRING_COMMA_LEN ("nofxsr"), CPU_ANY_FXSR_FLAGS
},
1175 { STRING_COMMA_LEN ("nommx"), CPU_ANY_MMX_FLAGS
},
1176 { STRING_COMMA_LEN ("nosse"), CPU_ANY_SSE_FLAGS
},
1177 { STRING_COMMA_LEN ("nosse2"), CPU_ANY_SSE2_FLAGS
},
1178 { STRING_COMMA_LEN ("nosse3"), CPU_ANY_SSE3_FLAGS
},
1179 { STRING_COMMA_LEN ("nossse3"), CPU_ANY_SSSE3_FLAGS
},
1180 { STRING_COMMA_LEN ("nosse4.1"), CPU_ANY_SSE4_1_FLAGS
},
1181 { STRING_COMMA_LEN ("nosse4.2"), CPU_ANY_SSE4_2_FLAGS
},
1182 { STRING_COMMA_LEN ("nosse4"), CPU_ANY_SSE4_1_FLAGS
},
1183 { STRING_COMMA_LEN ("noavx"), CPU_ANY_AVX_FLAGS
},
1184 { STRING_COMMA_LEN ("noavx2"), CPU_ANY_AVX2_FLAGS
},
1185 { STRING_COMMA_LEN ("noavx512f"), CPU_ANY_AVX512F_FLAGS
},
1186 { STRING_COMMA_LEN ("noavx512cd"), CPU_ANY_AVX512CD_FLAGS
},
1187 { STRING_COMMA_LEN ("noavx512er"), CPU_ANY_AVX512ER_FLAGS
},
1188 { STRING_COMMA_LEN ("noavx512pf"), CPU_ANY_AVX512PF_FLAGS
},
1189 { STRING_COMMA_LEN ("noavx512dq"), CPU_ANY_AVX512DQ_FLAGS
},
1190 { STRING_COMMA_LEN ("noavx512bw"), CPU_ANY_AVX512BW_FLAGS
},
1191 { STRING_COMMA_LEN ("noavx512vl"), CPU_ANY_AVX512VL_FLAGS
},
1192 { STRING_COMMA_LEN ("noavx512ifma"), CPU_ANY_AVX512IFMA_FLAGS
},
1193 { STRING_COMMA_LEN ("noavx512vbmi"), CPU_ANY_AVX512VBMI_FLAGS
},
1194 { STRING_COMMA_LEN ("noavx512_4fmaps"), CPU_ANY_AVX512_4FMAPS_FLAGS
},
1195 { STRING_COMMA_LEN ("noavx512_4vnniw"), CPU_ANY_AVX512_4VNNIW_FLAGS
},
1196 { STRING_COMMA_LEN ("noavx512_vpopcntdq"), CPU_ANY_AVX512_VPOPCNTDQ_FLAGS
},
1197 { STRING_COMMA_LEN ("noavx512_vbmi2"), CPU_ANY_AVX512_VBMI2_FLAGS
},
1198 { STRING_COMMA_LEN ("noavx512_vnni"), CPU_ANY_AVX512_VNNI_FLAGS
},
1199 { STRING_COMMA_LEN ("noavx512_bitalg"), CPU_ANY_AVX512_BITALG_FLAGS
},
1200 { STRING_COMMA_LEN ("noibt"), CPU_ANY_IBT_FLAGS
},
1201 { STRING_COMMA_LEN ("noshstk"), CPU_ANY_SHSTK_FLAGS
},
1202 { STRING_COMMA_LEN ("nomovdiri"), CPU_ANY_MOVDIRI_FLAGS
},
1203 { STRING_COMMA_LEN ("nomovdir64b"), CPU_ANY_MOVDIR64B_FLAGS
},
1204 { STRING_COMMA_LEN ("noavx512_bf16"), CPU_ANY_AVX512_BF16_FLAGS
},
1205 { STRING_COMMA_LEN ("noavx512_vp2intersect"), CPU_ANY_SHSTK_FLAGS
},
1206 { STRING_COMMA_LEN ("noenqcmd"), CPU_ANY_ENQCMD_FLAGS
},
1210 /* Like s_lcomm_internal in gas/read.c but the alignment string
1211 is allowed to be optional. */
1214 pe_lcomm_internal (int needs_align
, symbolS
*symbolP
, addressT size
)
1221 && *input_line_pointer
== ',')
1223 align
= parse_align (needs_align
- 1);
1225 if (align
== (addressT
) -1)
1240 bss_alloc (symbolP
, size
, align
);
1245 pe_lcomm (int needs_align
)
1247 s_comm_internal (needs_align
* 2, pe_lcomm_internal
);
1251 const pseudo_typeS md_pseudo_table
[] =
1253 #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO)
1254 {"align", s_align_bytes
, 0},
1256 {"align", s_align_ptwo
, 0},
1258 {"arch", set_cpu_arch
, 0},
1262 {"lcomm", pe_lcomm
, 1},
1264 {"ffloat", float_cons
, 'f'},
1265 {"dfloat", float_cons
, 'd'},
1266 {"tfloat", float_cons
, 'x'},
1268 {"slong", signed_cons
, 4},
1269 {"noopt", s_ignore
, 0},
1270 {"optim", s_ignore
, 0},
1271 {"code16gcc", set_16bit_gcc_code_flag
, CODE_16BIT
},
1272 {"code16", set_code_flag
, CODE_16BIT
},
1273 {"code32", set_code_flag
, CODE_32BIT
},
1275 {"code64", set_code_flag
, CODE_64BIT
},
1277 {"intel_syntax", set_intel_syntax
, 1},
1278 {"att_syntax", set_intel_syntax
, 0},
1279 {"intel_mnemonic", set_intel_mnemonic
, 1},
1280 {"att_mnemonic", set_intel_mnemonic
, 0},
1281 {"allow_index_reg", set_allow_index_reg
, 1},
1282 {"disallow_index_reg", set_allow_index_reg
, 0},
1283 {"sse_check", set_check
, 0},
1284 {"operand_check", set_check
, 1},
1285 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
1286 {"largecomm", handle_large_common
, 0},
1288 {"file", dwarf2_directive_file
, 0},
1289 {"loc", dwarf2_directive_loc
, 0},
1290 {"loc_mark_labels", dwarf2_directive_loc_mark_labels
, 0},
1293 {"secrel32", pe_directive_secrel
, 0},
1298 /* For interface with expression (). */
1299 extern char *input_line_pointer
;
1301 /* Hash table for instruction mnemonic lookup. */
1302 static struct hash_control
*op_hash
;
1304 /* Hash table for register lookup. */
1305 static struct hash_control
*reg_hash
;
1307 /* Various efficient no-op patterns for aligning code labels.
1308 Note: Don't try to assemble the instructions in the comments.
1309 0L and 0w are not legal. */
1310 static const unsigned char f32_1
[] =
1312 static const unsigned char f32_2
[] =
1313 {0x66,0x90}; /* xchg %ax,%ax */
1314 static const unsigned char f32_3
[] =
1315 {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */
1316 static const unsigned char f32_4
[] =
1317 {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */
1318 static const unsigned char f32_6
[] =
1319 {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */
1320 static const unsigned char f32_7
[] =
1321 {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */
1322 static const unsigned char f16_3
[] =
1323 {0x8d,0x74,0x00}; /* lea 0(%si),%si */
1324 static const unsigned char f16_4
[] =
1325 {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */
1326 static const unsigned char jump_disp8
[] =
1327 {0xeb}; /* jmp disp8 */
1328 static const unsigned char jump32_disp32
[] =
1329 {0xe9}; /* jmp disp32 */
1330 static const unsigned char jump16_disp32
[] =
1331 {0x66,0xe9}; /* jmp disp32 */
1332 /* 32-bit NOPs patterns. */
1333 static const unsigned char *const f32_patt
[] = {
1334 f32_1
, f32_2
, f32_3
, f32_4
, NULL
, f32_6
, f32_7
1336 /* 16-bit NOPs patterns. */
1337 static const unsigned char *const f16_patt
[] = {
1338 f32_1
, f32_2
, f16_3
, f16_4
1340 /* nopl (%[re]ax) */
1341 static const unsigned char alt_3
[] =
1343 /* nopl 0(%[re]ax) */
1344 static const unsigned char alt_4
[] =
1345 {0x0f,0x1f,0x40,0x00};
1346 /* nopl 0(%[re]ax,%[re]ax,1) */
1347 static const unsigned char alt_5
[] =
1348 {0x0f,0x1f,0x44,0x00,0x00};
1349 /* nopw 0(%[re]ax,%[re]ax,1) */
1350 static const unsigned char alt_6
[] =
1351 {0x66,0x0f,0x1f,0x44,0x00,0x00};
1352 /* nopl 0L(%[re]ax) */
1353 static const unsigned char alt_7
[] =
1354 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1355 /* nopl 0L(%[re]ax,%[re]ax,1) */
1356 static const unsigned char alt_8
[] =
1357 {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1358 /* nopw 0L(%[re]ax,%[re]ax,1) */
1359 static const unsigned char alt_9
[] =
1360 {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1361 /* nopw %cs:0L(%[re]ax,%[re]ax,1) */
1362 static const unsigned char alt_10
[] =
1363 {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1364 /* data16 nopw %cs:0L(%eax,%eax,1) */
1365 static const unsigned char alt_11
[] =
1366 {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1367 /* 32-bit and 64-bit NOPs patterns. */
1368 static const unsigned char *const alt_patt
[] = {
1369 f32_1
, f32_2
, alt_3
, alt_4
, alt_5
, alt_6
, alt_7
, alt_8
,
1370 alt_9
, alt_10
, alt_11
1373 /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum
1374 size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */
1377 i386_output_nops (char *where
, const unsigned char *const *patt
,
1378 int count
, int max_single_nop_size
)
1381 /* Place the longer NOP first. */
1384 const unsigned char *nops
;
1386 if (max_single_nop_size
< 1)
1388 as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"),
1389 max_single_nop_size
);
1393 nops
= patt
[max_single_nop_size
- 1];
1395 /* Use the smaller one if the requsted one isn't available. */
1398 max_single_nop_size
--;
1399 nops
= patt
[max_single_nop_size
- 1];
1402 last
= count
% max_single_nop_size
;
1405 for (offset
= 0; offset
< count
; offset
+= max_single_nop_size
)
1406 memcpy (where
+ offset
, nops
, max_single_nop_size
);
1410 nops
= patt
[last
- 1];
1413 /* Use the smaller one plus one-byte NOP if the needed one
1416 nops
= patt
[last
- 1];
1417 memcpy (where
+ offset
, nops
, last
);
1418 where
[offset
+ last
] = *patt
[0];
1421 memcpy (where
+ offset
, nops
, last
);
1426 fits_in_imm7 (offsetT num
)
1428 return (num
& 0x7f) == num
;
1432 fits_in_imm31 (offsetT num
)
1434 return (num
& 0x7fffffff) == num
;
1437 /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a
1438 single NOP instruction LIMIT. */
1441 i386_generate_nops (fragS
*fragP
, char *where
, offsetT count
, int limit
)
1443 const unsigned char *const *patt
= NULL
;
1444 int max_single_nop_size
;
1445 /* Maximum number of NOPs before switching to jump over NOPs. */
1446 int max_number_of_nops
;
1448 switch (fragP
->fr_type
)
1453 case rs_machine_dependent
:
1454 /* Allow NOP padding for jumps and calls. */
1455 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PADDING
1456 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == FUSED_JCC_PADDING
)
1463 /* We need to decide which NOP sequence to use for 32bit and
1464 64bit. When -mtune= is used:
1466 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and
1467 PROCESSOR_GENERIC32, f32_patt will be used.
1468 2. For the rest, alt_patt will be used.
1470 When -mtune= isn't used, alt_patt will be used if
1471 cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will
1474 When -march= or .arch is used, we can't use anything beyond
1475 cpu_arch_isa_flags. */
1477 if (flag_code
== CODE_16BIT
)
1480 max_single_nop_size
= sizeof (f16_patt
) / sizeof (f16_patt
[0]);
1481 /* Limit number of NOPs to 2 in 16-bit mode. */
1482 max_number_of_nops
= 2;
1486 if (fragP
->tc_frag_data
.isa
== PROCESSOR_UNKNOWN
)
1488 /* PROCESSOR_UNKNOWN means that all ISAs may be used. */
1489 switch (cpu_arch_tune
)
1491 case PROCESSOR_UNKNOWN
:
1492 /* We use cpu_arch_isa_flags to check if we SHOULD
1493 optimize with nops. */
1494 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1499 case PROCESSOR_PENTIUM4
:
1500 case PROCESSOR_NOCONA
:
1501 case PROCESSOR_CORE
:
1502 case PROCESSOR_CORE2
:
1503 case PROCESSOR_COREI7
:
1504 case PROCESSOR_L1OM
:
1505 case PROCESSOR_K1OM
:
1506 case PROCESSOR_GENERIC64
:
1508 case PROCESSOR_ATHLON
:
1510 case PROCESSOR_AMDFAM10
:
1512 case PROCESSOR_ZNVER
:
1516 case PROCESSOR_I386
:
1517 case PROCESSOR_I486
:
1518 case PROCESSOR_PENTIUM
:
1519 case PROCESSOR_PENTIUMPRO
:
1520 case PROCESSOR_IAMCU
:
1521 case PROCESSOR_GENERIC32
:
1528 switch (fragP
->tc_frag_data
.tune
)
1530 case PROCESSOR_UNKNOWN
:
1531 /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be
1532 PROCESSOR_UNKNOWN. */
1536 case PROCESSOR_I386
:
1537 case PROCESSOR_I486
:
1538 case PROCESSOR_PENTIUM
:
1539 case PROCESSOR_IAMCU
:
1541 case PROCESSOR_ATHLON
:
1543 case PROCESSOR_AMDFAM10
:
1545 case PROCESSOR_ZNVER
:
1547 case PROCESSOR_GENERIC32
:
1548 /* We use cpu_arch_isa_flags to check if we CAN optimize
1550 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1555 case PROCESSOR_PENTIUMPRO
:
1556 case PROCESSOR_PENTIUM4
:
1557 case PROCESSOR_NOCONA
:
1558 case PROCESSOR_CORE
:
1559 case PROCESSOR_CORE2
:
1560 case PROCESSOR_COREI7
:
1561 case PROCESSOR_L1OM
:
1562 case PROCESSOR_K1OM
:
1563 if (fragP
->tc_frag_data
.isa_flags
.bitfield
.cpunop
)
1568 case PROCESSOR_GENERIC64
:
1574 if (patt
== f32_patt
)
1576 max_single_nop_size
= sizeof (f32_patt
) / sizeof (f32_patt
[0]);
1577 /* Limit number of NOPs to 2 for older processors. */
1578 max_number_of_nops
= 2;
1582 max_single_nop_size
= sizeof (alt_patt
) / sizeof (alt_patt
[0]);
1583 /* Limit number of NOPs to 7 for newer processors. */
1584 max_number_of_nops
= 7;
1589 limit
= max_single_nop_size
;
1591 if (fragP
->fr_type
== rs_fill_nop
)
1593 /* Output NOPs for .nop directive. */
1594 if (limit
> max_single_nop_size
)
1596 as_bad_where (fragP
->fr_file
, fragP
->fr_line
,
1597 _("invalid single nop size: %d "
1598 "(expect within [0, %d])"),
1599 limit
, max_single_nop_size
);
1603 else if (fragP
->fr_type
!= rs_machine_dependent
)
1604 fragP
->fr_var
= count
;
1606 if ((count
/ max_single_nop_size
) > max_number_of_nops
)
1608 /* Generate jump over NOPs. */
1609 offsetT disp
= count
- 2;
1610 if (fits_in_imm7 (disp
))
1612 /* Use "jmp disp8" if possible. */
1614 where
[0] = jump_disp8
[0];
1620 unsigned int size_of_jump
;
1622 if (flag_code
== CODE_16BIT
)
1624 where
[0] = jump16_disp32
[0];
1625 where
[1] = jump16_disp32
[1];
1630 where
[0] = jump32_disp32
[0];
1634 count
-= size_of_jump
+ 4;
1635 if (!fits_in_imm31 (count
))
1637 as_bad_where (fragP
->fr_file
, fragP
->fr_line
,
1638 _("jump over nop padding out of range"));
1642 md_number_to_chars (where
+ size_of_jump
, count
, 4);
1643 where
+= size_of_jump
+ 4;
1647 /* Generate multiple NOPs. */
1648 i386_output_nops (where
, patt
, count
, limit
);
1652 operand_type_all_zero (const union i386_operand_type
*x
)
1654 switch (ARRAY_SIZE(x
->array
))
1665 return !x
->array
[0];
1672 operand_type_set (union i386_operand_type
*x
, unsigned int v
)
1674 switch (ARRAY_SIZE(x
->array
))
1690 x
->bitfield
.class = ClassNone
;
1691 x
->bitfield
.instance
= InstanceNone
;
1695 operand_type_equal (const union i386_operand_type
*x
,
1696 const union i386_operand_type
*y
)
1698 switch (ARRAY_SIZE(x
->array
))
1701 if (x
->array
[2] != y
->array
[2])
1705 if (x
->array
[1] != y
->array
[1])
1709 return x
->array
[0] == y
->array
[0];
1717 cpu_flags_all_zero (const union i386_cpu_flags
*x
)
1719 switch (ARRAY_SIZE(x
->array
))
1734 return !x
->array
[0];
1741 cpu_flags_equal (const union i386_cpu_flags
*x
,
1742 const union i386_cpu_flags
*y
)
1744 switch (ARRAY_SIZE(x
->array
))
1747 if (x
->array
[3] != y
->array
[3])
1751 if (x
->array
[2] != y
->array
[2])
1755 if (x
->array
[1] != y
->array
[1])
1759 return x
->array
[0] == y
->array
[0];
1767 cpu_flags_check_cpu64 (i386_cpu_flags f
)
1769 return !((flag_code
== CODE_64BIT
&& f
.bitfield
.cpuno64
)
1770 || (flag_code
!= CODE_64BIT
&& f
.bitfield
.cpu64
));
1773 static INLINE i386_cpu_flags
1774 cpu_flags_and (i386_cpu_flags x
, i386_cpu_flags y
)
1776 switch (ARRAY_SIZE (x
.array
))
1779 x
.array
[3] &= y
.array
[3];
1782 x
.array
[2] &= y
.array
[2];
1785 x
.array
[1] &= y
.array
[1];
1788 x
.array
[0] &= y
.array
[0];
1796 static INLINE i386_cpu_flags
1797 cpu_flags_or (i386_cpu_flags x
, i386_cpu_flags y
)
1799 switch (ARRAY_SIZE (x
.array
))
1802 x
.array
[3] |= y
.array
[3];
1805 x
.array
[2] |= y
.array
[2];
1808 x
.array
[1] |= y
.array
[1];
1811 x
.array
[0] |= y
.array
[0];
1819 static INLINE i386_cpu_flags
1820 cpu_flags_and_not (i386_cpu_flags x
, i386_cpu_flags y
)
1822 switch (ARRAY_SIZE (x
.array
))
1825 x
.array
[3] &= ~y
.array
[3];
1828 x
.array
[2] &= ~y
.array
[2];
1831 x
.array
[1] &= ~y
.array
[1];
1834 x
.array
[0] &= ~y
.array
[0];
1842 #define CPU_FLAGS_ARCH_MATCH 0x1
1843 #define CPU_FLAGS_64BIT_MATCH 0x2
1845 #define CPU_FLAGS_PERFECT_MATCH \
1846 (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH)
1848 /* Return CPU flags match bits. */
1851 cpu_flags_match (const insn_template
*t
)
1853 i386_cpu_flags x
= t
->cpu_flags
;
1854 int match
= cpu_flags_check_cpu64 (x
) ? CPU_FLAGS_64BIT_MATCH
: 0;
1856 x
.bitfield
.cpu64
= 0;
1857 x
.bitfield
.cpuno64
= 0;
1859 if (cpu_flags_all_zero (&x
))
1861 /* This instruction is available on all archs. */
1862 match
|= CPU_FLAGS_ARCH_MATCH
;
1866 /* This instruction is available only on some archs. */
1867 i386_cpu_flags cpu
= cpu_arch_flags
;
1869 /* AVX512VL is no standalone feature - match it and then strip it. */
1870 if (x
.bitfield
.cpuavx512vl
&& !cpu
.bitfield
.cpuavx512vl
)
1872 x
.bitfield
.cpuavx512vl
= 0;
1874 cpu
= cpu_flags_and (x
, cpu
);
1875 if (!cpu_flags_all_zero (&cpu
))
1877 if (x
.bitfield
.cpuavx
)
1879 /* We need to check a few extra flags with AVX. */
1880 if (cpu
.bitfield
.cpuavx
1881 && (!t
->opcode_modifier
.sse2avx
|| sse2avx
)
1882 && (!x
.bitfield
.cpuaes
|| cpu
.bitfield
.cpuaes
)
1883 && (!x
.bitfield
.cpugfni
|| cpu
.bitfield
.cpugfni
)
1884 && (!x
.bitfield
.cpupclmul
|| cpu
.bitfield
.cpupclmul
))
1885 match
|= CPU_FLAGS_ARCH_MATCH
;
1887 else if (x
.bitfield
.cpuavx512f
)
1889 /* We need to check a few extra flags with AVX512F. */
1890 if (cpu
.bitfield
.cpuavx512f
1891 && (!x
.bitfield
.cpugfni
|| cpu
.bitfield
.cpugfni
)
1892 && (!x
.bitfield
.cpuvaes
|| cpu
.bitfield
.cpuvaes
)
1893 && (!x
.bitfield
.cpuvpclmulqdq
|| cpu
.bitfield
.cpuvpclmulqdq
))
1894 match
|= CPU_FLAGS_ARCH_MATCH
;
1897 match
|= CPU_FLAGS_ARCH_MATCH
;
1903 static INLINE i386_operand_type
1904 operand_type_and (i386_operand_type x
, i386_operand_type y
)
1906 if (x
.bitfield
.class != y
.bitfield
.class)
1907 x
.bitfield
.class = ClassNone
;
1908 if (x
.bitfield
.instance
!= y
.bitfield
.instance
)
1909 x
.bitfield
.instance
= InstanceNone
;
1911 switch (ARRAY_SIZE (x
.array
))
1914 x
.array
[2] &= y
.array
[2];
1917 x
.array
[1] &= y
.array
[1];
1920 x
.array
[0] &= y
.array
[0];
1928 static INLINE i386_operand_type
1929 operand_type_and_not (i386_operand_type x
, i386_operand_type y
)
1931 gas_assert (y
.bitfield
.class == ClassNone
);
1932 gas_assert (y
.bitfield
.instance
== InstanceNone
);
1934 switch (ARRAY_SIZE (x
.array
))
1937 x
.array
[2] &= ~y
.array
[2];
1940 x
.array
[1] &= ~y
.array
[1];
1943 x
.array
[0] &= ~y
.array
[0];
1951 static INLINE i386_operand_type
1952 operand_type_or (i386_operand_type x
, i386_operand_type y
)
1954 gas_assert (x
.bitfield
.class == ClassNone
||
1955 y
.bitfield
.class == ClassNone
||
1956 x
.bitfield
.class == y
.bitfield
.class);
1957 gas_assert (x
.bitfield
.instance
== InstanceNone
||
1958 y
.bitfield
.instance
== InstanceNone
||
1959 x
.bitfield
.instance
== y
.bitfield
.instance
);
1961 switch (ARRAY_SIZE (x
.array
))
1964 x
.array
[2] |= y
.array
[2];
1967 x
.array
[1] |= y
.array
[1];
1970 x
.array
[0] |= y
.array
[0];
1978 static INLINE i386_operand_type
1979 operand_type_xor (i386_operand_type x
, i386_operand_type y
)
1981 gas_assert (y
.bitfield
.class == ClassNone
);
1982 gas_assert (y
.bitfield
.instance
== InstanceNone
);
1984 switch (ARRAY_SIZE (x
.array
))
1987 x
.array
[2] ^= y
.array
[2];
1990 x
.array
[1] ^= y
.array
[1];
1993 x
.array
[0] ^= y
.array
[0];
2001 static const i386_operand_type disp16
= OPERAND_TYPE_DISP16
;
2002 static const i386_operand_type disp32
= OPERAND_TYPE_DISP32
;
2003 static const i386_operand_type disp32s
= OPERAND_TYPE_DISP32S
;
2004 static const i386_operand_type disp16_32
= OPERAND_TYPE_DISP16_32
;
2005 static const i386_operand_type anydisp
= OPERAND_TYPE_ANYDISP
;
2006 static const i386_operand_type anyimm
= OPERAND_TYPE_ANYIMM
;
2007 static const i386_operand_type regxmm
= OPERAND_TYPE_REGXMM
;
2008 static const i386_operand_type regmask
= OPERAND_TYPE_REGMASK
;
2009 static const i386_operand_type imm8
= OPERAND_TYPE_IMM8
;
2010 static const i386_operand_type imm8s
= OPERAND_TYPE_IMM8S
;
2011 static const i386_operand_type imm16
= OPERAND_TYPE_IMM16
;
2012 static const i386_operand_type imm32
= OPERAND_TYPE_IMM32
;
2013 static const i386_operand_type imm32s
= OPERAND_TYPE_IMM32S
;
2014 static const i386_operand_type imm64
= OPERAND_TYPE_IMM64
;
2015 static const i386_operand_type imm16_32
= OPERAND_TYPE_IMM16_32
;
2016 static const i386_operand_type imm16_32s
= OPERAND_TYPE_IMM16_32S
;
2017 static const i386_operand_type imm16_32_32s
= OPERAND_TYPE_IMM16_32_32S
;
2028 operand_type_check (i386_operand_type t
, enum operand_type c
)
2033 return t
.bitfield
.class == Reg
;
2036 return (t
.bitfield
.imm8
2040 || t
.bitfield
.imm32s
2041 || t
.bitfield
.imm64
);
2044 return (t
.bitfield
.disp8
2045 || t
.bitfield
.disp16
2046 || t
.bitfield
.disp32
2047 || t
.bitfield
.disp32s
2048 || t
.bitfield
.disp64
);
2051 return (t
.bitfield
.disp8
2052 || t
.bitfield
.disp16
2053 || t
.bitfield
.disp32
2054 || t
.bitfield
.disp32s
2055 || t
.bitfield
.disp64
2056 || t
.bitfield
.baseindex
);
2065 /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size
2066 between operand GIVEN and opeand WANTED for instruction template T. */
2069 match_operand_size (const insn_template
*t
, unsigned int wanted
,
2072 return !((i
.types
[given
].bitfield
.byte
2073 && !t
->operand_types
[wanted
].bitfield
.byte
)
2074 || (i
.types
[given
].bitfield
.word
2075 && !t
->operand_types
[wanted
].bitfield
.word
)
2076 || (i
.types
[given
].bitfield
.dword
2077 && !t
->operand_types
[wanted
].bitfield
.dword
)
2078 || (i
.types
[given
].bitfield
.qword
2079 && !t
->operand_types
[wanted
].bitfield
.qword
)
2080 || (i
.types
[given
].bitfield
.tbyte
2081 && !t
->operand_types
[wanted
].bitfield
.tbyte
));
2084 /* Return 1 if there is no conflict in SIMD register between operand
2085 GIVEN and opeand WANTED for instruction template T. */
2088 match_simd_size (const insn_template
*t
, unsigned int wanted
,
2091 return !((i
.types
[given
].bitfield
.xmmword
2092 && !t
->operand_types
[wanted
].bitfield
.xmmword
)
2093 || (i
.types
[given
].bitfield
.ymmword
2094 && !t
->operand_types
[wanted
].bitfield
.ymmword
)
2095 || (i
.types
[given
].bitfield
.zmmword
2096 && !t
->operand_types
[wanted
].bitfield
.zmmword
));
2099 /* Return 1 if there is no conflict in any size between operand GIVEN
2100 and opeand WANTED for instruction template T. */
2103 match_mem_size (const insn_template
*t
, unsigned int wanted
,
2106 return (match_operand_size (t
, wanted
, given
)
2107 && !((i
.types
[given
].bitfield
.unspecified
2109 && !t
->operand_types
[wanted
].bitfield
.unspecified
)
2110 || (i
.types
[given
].bitfield
.fword
2111 && !t
->operand_types
[wanted
].bitfield
.fword
)
2112 /* For scalar opcode templates to allow register and memory
2113 operands at the same time, some special casing is needed
2114 here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and
2115 down-conversion vpmov*. */
2116 || ((t
->operand_types
[wanted
].bitfield
.class == RegSIMD
2117 && !t
->opcode_modifier
.broadcast
2118 && (t
->operand_types
[wanted
].bitfield
.byte
2119 || t
->operand_types
[wanted
].bitfield
.word
2120 || t
->operand_types
[wanted
].bitfield
.dword
2121 || t
->operand_types
[wanted
].bitfield
.qword
))
2122 ? (i
.types
[given
].bitfield
.xmmword
2123 || i
.types
[given
].bitfield
.ymmword
2124 || i
.types
[given
].bitfield
.zmmword
)
2125 : !match_simd_size(t
, wanted
, given
))));
2128 /* Return value has MATCH_STRAIGHT set if there is no size conflict on any
2129 operands for instruction template T, and it has MATCH_REVERSE set if there
2130 is no size conflict on any operands for the template with operands reversed
2131 (and the template allows for reversing in the first place). */
2133 #define MATCH_STRAIGHT 1
2134 #define MATCH_REVERSE 2
2136 static INLINE
unsigned int
2137 operand_size_match (const insn_template
*t
)
2139 unsigned int j
, match
= MATCH_STRAIGHT
;
2141 /* Don't check non-absolute jump instructions. */
2142 if (t
->opcode_modifier
.jump
2143 && t
->opcode_modifier
.jump
!= JUMP_ABSOLUTE
)
2146 /* Check memory and accumulator operand size. */
2147 for (j
= 0; j
< i
.operands
; j
++)
2149 if (i
.types
[j
].bitfield
.class != Reg
2150 && i
.types
[j
].bitfield
.class != RegSIMD
2151 && t
->opcode_modifier
.anysize
)
2154 if (t
->operand_types
[j
].bitfield
.class == Reg
2155 && !match_operand_size (t
, j
, j
))
2161 if (t
->operand_types
[j
].bitfield
.class == RegSIMD
2162 && !match_simd_size (t
, j
, j
))
2168 if (t
->operand_types
[j
].bitfield
.instance
== Accum
2169 && (!match_operand_size (t
, j
, j
) || !match_simd_size (t
, j
, j
)))
2175 if ((i
.flags
[j
] & Operand_Mem
) && !match_mem_size (t
, j
, j
))
2182 if (!t
->opcode_modifier
.d
)
2186 i
.error
= operand_size_mismatch
;
2190 /* Check reverse. */
2191 gas_assert (i
.operands
>= 2 && i
.operands
<= 3);
2193 for (j
= 0; j
< i
.operands
; j
++)
2195 unsigned int given
= i
.operands
- j
- 1;
2197 if (t
->operand_types
[j
].bitfield
.class == Reg
2198 && !match_operand_size (t
, j
, given
))
2201 if (t
->operand_types
[j
].bitfield
.class == RegSIMD
2202 && !match_simd_size (t
, j
, given
))
2205 if (t
->operand_types
[j
].bitfield
.instance
== Accum
2206 && (!match_operand_size (t
, j
, given
)
2207 || !match_simd_size (t
, j
, given
)))
2210 if ((i
.flags
[given
] & Operand_Mem
) && !match_mem_size (t
, j
, given
))
2214 return match
| MATCH_REVERSE
;
2218 operand_type_match (i386_operand_type overlap
,
2219 i386_operand_type given
)
2221 i386_operand_type temp
= overlap
;
2223 temp
.bitfield
.unspecified
= 0;
2224 temp
.bitfield
.byte
= 0;
2225 temp
.bitfield
.word
= 0;
2226 temp
.bitfield
.dword
= 0;
2227 temp
.bitfield
.fword
= 0;
2228 temp
.bitfield
.qword
= 0;
2229 temp
.bitfield
.tbyte
= 0;
2230 temp
.bitfield
.xmmword
= 0;
2231 temp
.bitfield
.ymmword
= 0;
2232 temp
.bitfield
.zmmword
= 0;
2233 if (operand_type_all_zero (&temp
))
2236 if (given
.bitfield
.baseindex
== overlap
.bitfield
.baseindex
)
2240 i
.error
= operand_type_mismatch
;
2244 /* If given types g0 and g1 are registers they must be of the same type
2245 unless the expected operand type register overlap is null.
2246 Memory operand size of certain SIMD instructions is also being checked
2250 operand_type_register_match (i386_operand_type g0
,
2251 i386_operand_type t0
,
2252 i386_operand_type g1
,
2253 i386_operand_type t1
)
2255 if (g0
.bitfield
.class != Reg
2256 && g0
.bitfield
.class != RegSIMD
2257 && (!operand_type_check (g0
, anymem
)
2258 || g0
.bitfield
.unspecified
2259 || t0
.bitfield
.class != RegSIMD
))
2262 if (g1
.bitfield
.class != Reg
2263 && g1
.bitfield
.class != RegSIMD
2264 && (!operand_type_check (g1
, anymem
)
2265 || g1
.bitfield
.unspecified
2266 || t1
.bitfield
.class != RegSIMD
))
2269 if (g0
.bitfield
.byte
== g1
.bitfield
.byte
2270 && g0
.bitfield
.word
== g1
.bitfield
.word
2271 && g0
.bitfield
.dword
== g1
.bitfield
.dword
2272 && g0
.bitfield
.qword
== g1
.bitfield
.qword
2273 && g0
.bitfield
.xmmword
== g1
.bitfield
.xmmword
2274 && g0
.bitfield
.ymmword
== g1
.bitfield
.ymmword
2275 && g0
.bitfield
.zmmword
== g1
.bitfield
.zmmword
)
2278 if (!(t0
.bitfield
.byte
& t1
.bitfield
.byte
)
2279 && !(t0
.bitfield
.word
& t1
.bitfield
.word
)
2280 && !(t0
.bitfield
.dword
& t1
.bitfield
.dword
)
2281 && !(t0
.bitfield
.qword
& t1
.bitfield
.qword
)
2282 && !(t0
.bitfield
.xmmword
& t1
.bitfield
.xmmword
)
2283 && !(t0
.bitfield
.ymmword
& t1
.bitfield
.ymmword
)
2284 && !(t0
.bitfield
.zmmword
& t1
.bitfield
.zmmword
))
2287 i
.error
= register_type_mismatch
;
2292 static INLINE
unsigned int
2293 register_number (const reg_entry
*r
)
2295 unsigned int nr
= r
->reg_num
;
2297 if (r
->reg_flags
& RegRex
)
2300 if (r
->reg_flags
& RegVRex
)
2306 static INLINE
unsigned int
2307 mode_from_disp_size (i386_operand_type t
)
2309 if (t
.bitfield
.disp8
)
2311 else if (t
.bitfield
.disp16
2312 || t
.bitfield
.disp32
2313 || t
.bitfield
.disp32s
)
2320 fits_in_signed_byte (addressT num
)
2322 return num
+ 0x80 <= 0xff;
2326 fits_in_unsigned_byte (addressT num
)
2332 fits_in_unsigned_word (addressT num
)
2334 return num
<= 0xffff;
2338 fits_in_signed_word (addressT num
)
2340 return num
+ 0x8000 <= 0xffff;
2344 fits_in_signed_long (addressT num ATTRIBUTE_UNUSED
)
2349 return num
+ 0x80000000 <= 0xffffffff;
2351 } /* fits_in_signed_long() */
2354 fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED
)
2359 return num
<= 0xffffffff;
2361 } /* fits_in_unsigned_long() */
2364 fits_in_disp8 (offsetT num
)
2366 int shift
= i
.memshift
;
2372 mask
= (1 << shift
) - 1;
2374 /* Return 0 if NUM isn't properly aligned. */
2378 /* Check if NUM will fit in 8bit after shift. */
2379 return fits_in_signed_byte (num
>> shift
);
2383 fits_in_imm4 (offsetT num
)
2385 return (num
& 0xf) == num
;
2388 static i386_operand_type
2389 smallest_imm_type (offsetT num
)
2391 i386_operand_type t
;
2393 operand_type_set (&t
, 0);
2394 t
.bitfield
.imm64
= 1;
2396 if (cpu_arch_tune
!= PROCESSOR_I486
&& num
== 1)
2398 /* This code is disabled on the 486 because all the Imm1 forms
2399 in the opcode table are slower on the i486. They're the
2400 versions with the implicitly specified single-position
2401 displacement, which has another syntax if you really want to
2403 t
.bitfield
.imm1
= 1;
2404 t
.bitfield
.imm8
= 1;
2405 t
.bitfield
.imm8s
= 1;
2406 t
.bitfield
.imm16
= 1;
2407 t
.bitfield
.imm32
= 1;
2408 t
.bitfield
.imm32s
= 1;
2410 else if (fits_in_signed_byte (num
))
2412 t
.bitfield
.imm8
= 1;
2413 t
.bitfield
.imm8s
= 1;
2414 t
.bitfield
.imm16
= 1;
2415 t
.bitfield
.imm32
= 1;
2416 t
.bitfield
.imm32s
= 1;
2418 else if (fits_in_unsigned_byte (num
))
2420 t
.bitfield
.imm8
= 1;
2421 t
.bitfield
.imm16
= 1;
2422 t
.bitfield
.imm32
= 1;
2423 t
.bitfield
.imm32s
= 1;
2425 else if (fits_in_signed_word (num
) || fits_in_unsigned_word (num
))
2427 t
.bitfield
.imm16
= 1;
2428 t
.bitfield
.imm32
= 1;
2429 t
.bitfield
.imm32s
= 1;
2431 else if (fits_in_signed_long (num
))
2433 t
.bitfield
.imm32
= 1;
2434 t
.bitfield
.imm32s
= 1;
2436 else if (fits_in_unsigned_long (num
))
2437 t
.bitfield
.imm32
= 1;
2443 offset_in_range (offsetT val
, int size
)
2449 case 1: mask
= ((addressT
) 1 << 8) - 1; break;
2450 case 2: mask
= ((addressT
) 1 << 16) - 1; break;
2451 case 4: mask
= ((addressT
) 2 << 31) - 1; break;
2453 case 8: mask
= ((addressT
) 2 << 63) - 1; break;
2459 /* If BFD64, sign extend val for 32bit address mode. */
2460 if (flag_code
!= CODE_64BIT
2461 || i
.prefix
[ADDR_PREFIX
])
2462 if ((val
& ~(((addressT
) 2 << 31) - 1)) == 0)
2463 val
= (val
^ ((addressT
) 1 << 31)) - ((addressT
) 1 << 31);
2466 if ((val
& ~mask
) != 0 && (val
& ~mask
) != ~mask
)
2468 char buf1
[40], buf2
[40];
2470 sprint_value (buf1
, val
);
2471 sprint_value (buf2
, val
& mask
);
2472 as_warn (_("%s shortened to %s"), buf1
, buf2
);
2487 a. PREFIX_EXIST if attempting to add a prefix where one from the
2488 same class already exists.
2489 b. PREFIX_LOCK if lock prefix is added.
2490 c. PREFIX_REP if rep/repne prefix is added.
2491 d. PREFIX_DS if ds prefix is added.
2492 e. PREFIX_OTHER if other prefix is added.
2495 static enum PREFIX_GROUP
2496 add_prefix (unsigned int prefix
)
2498 enum PREFIX_GROUP ret
= PREFIX_OTHER
;
2501 if (prefix
>= REX_OPCODE
&& prefix
< REX_OPCODE
+ 16
2502 && flag_code
== CODE_64BIT
)
2504 if ((i
.prefix
[REX_PREFIX
] & prefix
& REX_W
)
2505 || (i
.prefix
[REX_PREFIX
] & prefix
& REX_R
)
2506 || (i
.prefix
[REX_PREFIX
] & prefix
& REX_X
)
2507 || (i
.prefix
[REX_PREFIX
] & prefix
& REX_B
))
2518 case DS_PREFIX_OPCODE
:
2521 case CS_PREFIX_OPCODE
:
2522 case ES_PREFIX_OPCODE
:
2523 case FS_PREFIX_OPCODE
:
2524 case GS_PREFIX_OPCODE
:
2525 case SS_PREFIX_OPCODE
:
2529 case REPNE_PREFIX_OPCODE
:
2530 case REPE_PREFIX_OPCODE
:
2535 case LOCK_PREFIX_OPCODE
:
2544 case ADDR_PREFIX_OPCODE
:
2548 case DATA_PREFIX_OPCODE
:
2552 if (i
.prefix
[q
] != 0)
2560 i
.prefix
[q
] |= prefix
;
2563 as_bad (_("same type of prefix used twice"));
2569 update_code_flag (int value
, int check
)
2571 PRINTF_LIKE ((*as_error
));
2573 flag_code
= (enum flag_code
) value
;
2574 if (flag_code
== CODE_64BIT
)
2576 cpu_arch_flags
.bitfield
.cpu64
= 1;
2577 cpu_arch_flags
.bitfield
.cpuno64
= 0;
2581 cpu_arch_flags
.bitfield
.cpu64
= 0;
2582 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2584 if (value
== CODE_64BIT
&& !cpu_arch_flags
.bitfield
.cpulm
)
2587 as_error
= as_fatal
;
2590 (*as_error
) (_("64bit mode not supported on `%s'."),
2591 cpu_arch_name
? cpu_arch_name
: default_arch
);
2593 if (value
== CODE_32BIT
&& !cpu_arch_flags
.bitfield
.cpui386
)
2596 as_error
= as_fatal
;
2599 (*as_error
) (_("32bit mode not supported on `%s'."),
2600 cpu_arch_name
? cpu_arch_name
: default_arch
);
2602 stackop_size
= '\0';
2606 set_code_flag (int value
)
2608 update_code_flag (value
, 0);
2612 set_16bit_gcc_code_flag (int new_code_flag
)
2614 flag_code
= (enum flag_code
) new_code_flag
;
2615 if (flag_code
!= CODE_16BIT
)
2617 cpu_arch_flags
.bitfield
.cpu64
= 0;
2618 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2619 stackop_size
= LONG_MNEM_SUFFIX
;
2623 set_intel_syntax (int syntax_flag
)
2625 /* Find out if register prefixing is specified. */
2626 int ask_naked_reg
= 0;
2629 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2632 int e
= get_symbol_name (&string
);
2634 if (strcmp (string
, "prefix") == 0)
2636 else if (strcmp (string
, "noprefix") == 0)
2639 as_bad (_("bad argument to syntax directive."));
2640 (void) restore_line_pointer (e
);
2642 demand_empty_rest_of_line ();
2644 intel_syntax
= syntax_flag
;
2646 if (ask_naked_reg
== 0)
2647 allow_naked_reg
= (intel_syntax
2648 && (bfd_get_symbol_leading_char (stdoutput
) != '\0'));
2650 allow_naked_reg
= (ask_naked_reg
< 0);
2652 expr_set_rank (O_full_ptr
, syntax_flag
? 10 : 0);
2654 identifier_chars
['%'] = intel_syntax
&& allow_naked_reg
? '%' : 0;
2655 identifier_chars
['$'] = intel_syntax
? '$' : 0;
2656 register_prefix
= allow_naked_reg
? "" : "%";
2660 set_intel_mnemonic (int mnemonic_flag
)
2662 intel_mnemonic
= mnemonic_flag
;
2666 set_allow_index_reg (int flag
)
2668 allow_index_reg
= flag
;
2672 set_check (int what
)
2674 enum check_kind
*kind
;
2679 kind
= &operand_check
;
2690 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2693 int e
= get_symbol_name (&string
);
2695 if (strcmp (string
, "none") == 0)
2697 else if (strcmp (string
, "warning") == 0)
2698 *kind
= check_warning
;
2699 else if (strcmp (string
, "error") == 0)
2700 *kind
= check_error
;
2702 as_bad (_("bad argument to %s_check directive."), str
);
2703 (void) restore_line_pointer (e
);
2706 as_bad (_("missing argument for %s_check directive"), str
);
2708 demand_empty_rest_of_line ();
2712 check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED
,
2713 i386_cpu_flags new_flag ATTRIBUTE_UNUSED
)
2715 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2716 static const char *arch
;
2718 /* Intel LIOM is only supported on ELF. */
2724 /* Use cpu_arch_name if it is set in md_parse_option. Otherwise
2725 use default_arch. */
2726 arch
= cpu_arch_name
;
2728 arch
= default_arch
;
2731 /* If we are targeting Intel MCU, we must enable it. */
2732 if (get_elf_backend_data (stdoutput
)->elf_machine_code
!= EM_IAMCU
2733 || new_flag
.bitfield
.cpuiamcu
)
2736 /* If we are targeting Intel L1OM, we must enable it. */
2737 if (get_elf_backend_data (stdoutput
)->elf_machine_code
!= EM_L1OM
2738 || new_flag
.bitfield
.cpul1om
)
2741 /* If we are targeting Intel K1OM, we must enable it. */
2742 if (get_elf_backend_data (stdoutput
)->elf_machine_code
!= EM_K1OM
2743 || new_flag
.bitfield
.cpuk1om
)
2746 as_bad (_("`%s' is not supported on `%s'"), name
, arch
);
2751 set_cpu_arch (int dummy ATTRIBUTE_UNUSED
)
2755 if (!is_end_of_line
[(unsigned char) *input_line_pointer
])
2758 int e
= get_symbol_name (&string
);
2760 i386_cpu_flags flags
;
2762 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
2764 if (strcmp (string
, cpu_arch
[j
].name
) == 0)
2766 check_cpu_arch_compatible (string
, cpu_arch
[j
].flags
);
2770 cpu_arch_name
= cpu_arch
[j
].name
;
2771 cpu_sub_arch_name
= NULL
;
2772 cpu_arch_flags
= cpu_arch
[j
].flags
;
2773 if (flag_code
== CODE_64BIT
)
2775 cpu_arch_flags
.bitfield
.cpu64
= 1;
2776 cpu_arch_flags
.bitfield
.cpuno64
= 0;
2780 cpu_arch_flags
.bitfield
.cpu64
= 0;
2781 cpu_arch_flags
.bitfield
.cpuno64
= 1;
2783 cpu_arch_isa
= cpu_arch
[j
].type
;
2784 cpu_arch_isa_flags
= cpu_arch
[j
].flags
;
2785 if (!cpu_arch_tune_set
)
2787 cpu_arch_tune
= cpu_arch_isa
;
2788 cpu_arch_tune_flags
= cpu_arch_isa_flags
;
2793 flags
= cpu_flags_or (cpu_arch_flags
,
2796 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
2798 if (cpu_sub_arch_name
)
2800 char *name
= cpu_sub_arch_name
;
2801 cpu_sub_arch_name
= concat (name
,
2803 (const char *) NULL
);
2807 cpu_sub_arch_name
= xstrdup (cpu_arch
[j
].name
);
2808 cpu_arch_flags
= flags
;
2809 cpu_arch_isa_flags
= flags
;
2813 = cpu_flags_or (cpu_arch_isa_flags
,
2815 (void) restore_line_pointer (e
);
2816 demand_empty_rest_of_line ();
2821 if (*string
== '.' && j
>= ARRAY_SIZE (cpu_arch
))
2823 /* Disable an ISA extension. */
2824 for (j
= 0; j
< ARRAY_SIZE (cpu_noarch
); j
++)
2825 if (strcmp (string
+ 1, cpu_noarch
[j
].name
) == 0)
2827 flags
= cpu_flags_and_not (cpu_arch_flags
,
2828 cpu_noarch
[j
].flags
);
2829 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
2831 if (cpu_sub_arch_name
)
2833 char *name
= cpu_sub_arch_name
;
2834 cpu_sub_arch_name
= concat (name
, string
,
2835 (const char *) NULL
);
2839 cpu_sub_arch_name
= xstrdup (string
);
2840 cpu_arch_flags
= flags
;
2841 cpu_arch_isa_flags
= flags
;
2843 (void) restore_line_pointer (e
);
2844 demand_empty_rest_of_line ();
2848 j
= ARRAY_SIZE (cpu_arch
);
2851 if (j
>= ARRAY_SIZE (cpu_arch
))
2852 as_bad (_("no such architecture: `%s'"), string
);
2854 *input_line_pointer
= e
;
2857 as_bad (_("missing cpu architecture"));
2859 no_cond_jump_promotion
= 0;
2860 if (*input_line_pointer
== ','
2861 && !is_end_of_line
[(unsigned char) input_line_pointer
[1]])
2866 ++input_line_pointer
;
2867 e
= get_symbol_name (&string
);
2869 if (strcmp (string
, "nojumps") == 0)
2870 no_cond_jump_promotion
= 1;
2871 else if (strcmp (string
, "jumps") == 0)
2874 as_bad (_("no such architecture modifier: `%s'"), string
);
2876 (void) restore_line_pointer (e
);
2879 demand_empty_rest_of_line ();
2882 enum bfd_architecture
2885 if (cpu_arch_isa
== PROCESSOR_L1OM
)
2887 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2888 || flag_code
!= CODE_64BIT
)
2889 as_fatal (_("Intel L1OM is 64bit ELF only"));
2890 return bfd_arch_l1om
;
2892 else if (cpu_arch_isa
== PROCESSOR_K1OM
)
2894 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2895 || flag_code
!= CODE_64BIT
)
2896 as_fatal (_("Intel K1OM is 64bit ELF only"));
2897 return bfd_arch_k1om
;
2899 else if (cpu_arch_isa
== PROCESSOR_IAMCU
)
2901 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2902 || flag_code
== CODE_64BIT
)
2903 as_fatal (_("Intel MCU is 32bit ELF only"));
2904 return bfd_arch_iamcu
;
2907 return bfd_arch_i386
;
2913 if (!strncmp (default_arch
, "x86_64", 6))
2915 if (cpu_arch_isa
== PROCESSOR_L1OM
)
2917 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2918 || default_arch
[6] != '\0')
2919 as_fatal (_("Intel L1OM is 64bit ELF only"));
2920 return bfd_mach_l1om
;
2922 else if (cpu_arch_isa
== PROCESSOR_K1OM
)
2924 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
2925 || default_arch
[6] != '\0')
2926 as_fatal (_("Intel K1OM is 64bit ELF only"));
2927 return bfd_mach_k1om
;
2929 else if (default_arch
[6] == '\0')
2930 return bfd_mach_x86_64
;
2932 return bfd_mach_x64_32
;
2934 else if (!strcmp (default_arch
, "i386")
2935 || !strcmp (default_arch
, "iamcu"))
2937 if (cpu_arch_isa
== PROCESSOR_IAMCU
)
2939 if (OUTPUT_FLAVOR
!= bfd_target_elf_flavour
)
2940 as_fatal (_("Intel MCU is 32bit ELF only"));
2941 return bfd_mach_i386_iamcu
;
2944 return bfd_mach_i386_i386
;
2947 as_fatal (_("unknown architecture"));
2953 const char *hash_err
;
2955 /* Support pseudo prefixes like {disp32}. */
2956 lex_type
['{'] = LEX_BEGIN_NAME
;
2958 /* Initialize op_hash hash table. */
2959 op_hash
= hash_new ();
2962 const insn_template
*optab
;
2963 templates
*core_optab
;
2965 /* Setup for loop. */
2967 core_optab
= XNEW (templates
);
2968 core_optab
->start
= optab
;
2973 if (optab
->name
== NULL
2974 || strcmp (optab
->name
, (optab
- 1)->name
) != 0)
2976 /* different name --> ship out current template list;
2977 add to hash table; & begin anew. */
2978 core_optab
->end
= optab
;
2979 hash_err
= hash_insert (op_hash
,
2981 (void *) core_optab
);
2984 as_fatal (_("can't hash %s: %s"),
2988 if (optab
->name
== NULL
)
2990 core_optab
= XNEW (templates
);
2991 core_optab
->start
= optab
;
2996 /* Initialize reg_hash hash table. */
2997 reg_hash
= hash_new ();
2999 const reg_entry
*regtab
;
3000 unsigned int regtab_size
= i386_regtab_size
;
3002 for (regtab
= i386_regtab
; regtab_size
--; regtab
++)
3004 hash_err
= hash_insert (reg_hash
, regtab
->reg_name
, (void *) regtab
);
3006 as_fatal (_("can't hash %s: %s"),
3012 /* Fill in lexical tables: mnemonic_chars, operand_chars. */
3017 for (c
= 0; c
< 256; c
++)
3022 mnemonic_chars
[c
] = c
;
3023 register_chars
[c
] = c
;
3024 operand_chars
[c
] = c
;
3026 else if (ISLOWER (c
))
3028 mnemonic_chars
[c
] = c
;
3029 register_chars
[c
] = c
;
3030 operand_chars
[c
] = c
;
3032 else if (ISUPPER (c
))
3034 mnemonic_chars
[c
] = TOLOWER (c
);
3035 register_chars
[c
] = mnemonic_chars
[c
];
3036 operand_chars
[c
] = c
;
3038 else if (c
== '{' || c
== '}')
3040 mnemonic_chars
[c
] = c
;
3041 operand_chars
[c
] = c
;
3044 if (ISALPHA (c
) || ISDIGIT (c
))
3045 identifier_chars
[c
] = c
;
3048 identifier_chars
[c
] = c
;
3049 operand_chars
[c
] = c
;
3054 identifier_chars
['@'] = '@';
3057 identifier_chars
['?'] = '?';
3058 operand_chars
['?'] = '?';
3060 digit_chars
['-'] = '-';
3061 mnemonic_chars
['_'] = '_';
3062 mnemonic_chars
['-'] = '-';
3063 mnemonic_chars
['.'] = '.';
3064 identifier_chars
['_'] = '_';
3065 identifier_chars
['.'] = '.';
3067 for (p
= operand_special_chars
; *p
!= '\0'; p
++)
3068 operand_chars
[(unsigned char) *p
] = *p
;
3071 if (flag_code
== CODE_64BIT
)
3073 #if defined (OBJ_COFF) && defined (TE_PE)
3074 x86_dwarf2_return_column
= (OUTPUT_FLAVOR
== bfd_target_coff_flavour
3077 x86_dwarf2_return_column
= 16;
3079 x86_cie_data_alignment
= -8;
3083 x86_dwarf2_return_column
= 8;
3084 x86_cie_data_alignment
= -4;
3087 /* NB: FUSED_JCC_PADDING frag must have sufficient room so that it
3088 can be turned into BRANCH_PREFIX frag. */
3089 if (align_branch_prefix_size
> MAX_FUSED_JCC_PADDING_SIZE
)
3094 i386_print_statistics (FILE *file
)
3096 hash_print_statistics (file
, "i386 opcode", op_hash
);
3097 hash_print_statistics (file
, "i386 register", reg_hash
);
3102 /* Debugging routines for md_assemble. */
3103 static void pte (insn_template
*);
3104 static void pt (i386_operand_type
);
3105 static void pe (expressionS
*);
3106 static void ps (symbolS
*);
3109 pi (const char *line
, i386_insn
*x
)
3113 fprintf (stdout
, "%s: template ", line
);
3115 fprintf (stdout
, " address: base %s index %s scale %x\n",
3116 x
->base_reg
? x
->base_reg
->reg_name
: "none",
3117 x
->index_reg
? x
->index_reg
->reg_name
: "none",
3118 x
->log2_scale_factor
);
3119 fprintf (stdout
, " modrm: mode %x reg %x reg/mem %x\n",
3120 x
->rm
.mode
, x
->rm
.reg
, x
->rm
.regmem
);
3121 fprintf (stdout
, " sib: base %x index %x scale %x\n",
3122 x
->sib
.base
, x
->sib
.index
, x
->sib
.scale
);
3123 fprintf (stdout
, " rex: 64bit %x extX %x extY %x extZ %x\n",
3124 (x
->rex
& REX_W
) != 0,
3125 (x
->rex
& REX_R
) != 0,
3126 (x
->rex
& REX_X
) != 0,
3127 (x
->rex
& REX_B
) != 0);
3128 for (j
= 0; j
< x
->operands
; j
++)
3130 fprintf (stdout
, " #%d: ", j
+ 1);
3132 fprintf (stdout
, "\n");
3133 if (x
->types
[j
].bitfield
.class == Reg
3134 || x
->types
[j
].bitfield
.class == RegMMX
3135 || x
->types
[j
].bitfield
.class == RegSIMD
3136 || x
->types
[j
].bitfield
.class == SReg
3137 || x
->types
[j
].bitfield
.class == RegCR
3138 || x
->types
[j
].bitfield
.class == RegDR
3139 || x
->types
[j
].bitfield
.class == RegTR
)
3140 fprintf (stdout
, "%s\n", x
->op
[j
].regs
->reg_name
);
3141 if (operand_type_check (x
->types
[j
], imm
))
3143 if (operand_type_check (x
->types
[j
], disp
))
3144 pe (x
->op
[j
].disps
);
3149 pte (insn_template
*t
)
3152 fprintf (stdout
, " %d operands ", t
->operands
);
3153 fprintf (stdout
, "opcode %x ", t
->base_opcode
);
3154 if (t
->extension_opcode
!= None
)
3155 fprintf (stdout
, "ext %x ", t
->extension_opcode
);
3156 if (t
->opcode_modifier
.d
)
3157 fprintf (stdout
, "D");
3158 if (t
->opcode_modifier
.w
)
3159 fprintf (stdout
, "W");
3160 fprintf (stdout
, "\n");
3161 for (j
= 0; j
< t
->operands
; j
++)
3163 fprintf (stdout
, " #%d type ", j
+ 1);
3164 pt (t
->operand_types
[j
]);
3165 fprintf (stdout
, "\n");
3172 fprintf (stdout
, " operation %d\n", e
->X_op
);
3173 fprintf (stdout
, " add_number %ld (%lx)\n",
3174 (long) e
->X_add_number
, (long) e
->X_add_number
);
3175 if (e
->X_add_symbol
)
3177 fprintf (stdout
, " add_symbol ");
3178 ps (e
->X_add_symbol
);
3179 fprintf (stdout
, "\n");
3183 fprintf (stdout
, " op_symbol ");
3184 ps (e
->X_op_symbol
);
3185 fprintf (stdout
, "\n");
3192 fprintf (stdout
, "%s type %s%s",
3194 S_IS_EXTERNAL (s
) ? "EXTERNAL " : "",
3195 segment_name (S_GET_SEGMENT (s
)));
3198 static struct type_name
3200 i386_operand_type mask
;
3203 const type_names
[] =
3205 { OPERAND_TYPE_REG8
, "r8" },
3206 { OPERAND_TYPE_REG16
, "r16" },
3207 { OPERAND_TYPE_REG32
, "r32" },
3208 { OPERAND_TYPE_REG64
, "r64" },
3209 { OPERAND_TYPE_ACC8
, "acc8" },
3210 { OPERAND_TYPE_ACC16
, "acc16" },
3211 { OPERAND_TYPE_ACC32
, "acc32" },
3212 { OPERAND_TYPE_ACC64
, "acc64" },
3213 { OPERAND_TYPE_IMM8
, "i8" },
3214 { OPERAND_TYPE_IMM8
, "i8s" },
3215 { OPERAND_TYPE_IMM16
, "i16" },
3216 { OPERAND_TYPE_IMM32
, "i32" },
3217 { OPERAND_TYPE_IMM32S
, "i32s" },
3218 { OPERAND_TYPE_IMM64
, "i64" },
3219 { OPERAND_TYPE_IMM1
, "i1" },
3220 { OPERAND_TYPE_BASEINDEX
, "BaseIndex" },
3221 { OPERAND_TYPE_DISP8
, "d8" },
3222 { OPERAND_TYPE_DISP16
, "d16" },
3223 { OPERAND_TYPE_DISP32
, "d32" },
3224 { OPERAND_TYPE_DISP32S
, "d32s" },
3225 { OPERAND_TYPE_DISP64
, "d64" },
3226 { OPERAND_TYPE_INOUTPORTREG
, "InOutPortReg" },
3227 { OPERAND_TYPE_SHIFTCOUNT
, "ShiftCount" },
3228 { OPERAND_TYPE_CONTROL
, "control reg" },
3229 { OPERAND_TYPE_TEST
, "test reg" },
3230 { OPERAND_TYPE_DEBUG
, "debug reg" },
3231 { OPERAND_TYPE_FLOATREG
, "FReg" },
3232 { OPERAND_TYPE_FLOATACC
, "FAcc" },
3233 { OPERAND_TYPE_SREG
, "SReg" },
3234 { OPERAND_TYPE_REGMMX
, "rMMX" },
3235 { OPERAND_TYPE_REGXMM
, "rXMM" },
3236 { OPERAND_TYPE_REGYMM
, "rYMM" },
3237 { OPERAND_TYPE_REGZMM
, "rZMM" },
3238 { OPERAND_TYPE_REGMASK
, "Mask reg" },
3242 pt (i386_operand_type t
)
3245 i386_operand_type a
;
3247 for (j
= 0; j
< ARRAY_SIZE (type_names
); j
++)
3249 a
= operand_type_and (t
, type_names
[j
].mask
);
3250 if (operand_type_equal (&a
, &type_names
[j
].mask
))
3251 fprintf (stdout
, "%s, ", type_names
[j
].name
);
3256 #endif /* DEBUG386 */
3258 static bfd_reloc_code_real_type
3259 reloc (unsigned int size
,
3262 bfd_reloc_code_real_type other
)
3264 if (other
!= NO_RELOC
)
3266 reloc_howto_type
*rel
;
3271 case BFD_RELOC_X86_64_GOT32
:
3272 return BFD_RELOC_X86_64_GOT64
;
3274 case BFD_RELOC_X86_64_GOTPLT64
:
3275 return BFD_RELOC_X86_64_GOTPLT64
;
3277 case BFD_RELOC_X86_64_PLTOFF64
:
3278 return BFD_RELOC_X86_64_PLTOFF64
;
3280 case BFD_RELOC_X86_64_GOTPC32
:
3281 other
= BFD_RELOC_X86_64_GOTPC64
;
3283 case BFD_RELOC_X86_64_GOTPCREL
:
3284 other
= BFD_RELOC_X86_64_GOTPCREL64
;
3286 case BFD_RELOC_X86_64_TPOFF32
:
3287 other
= BFD_RELOC_X86_64_TPOFF64
;
3289 case BFD_RELOC_X86_64_DTPOFF32
:
3290 other
= BFD_RELOC_X86_64_DTPOFF64
;
3296 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3297 if (other
== BFD_RELOC_SIZE32
)
3300 other
= BFD_RELOC_SIZE64
;
3303 as_bad (_("there are no pc-relative size relocations"));
3309 /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */
3310 if (size
== 4 && (flag_code
!= CODE_64BIT
|| disallow_64bit_reloc
))
3313 rel
= bfd_reloc_type_lookup (stdoutput
, other
);
3315 as_bad (_("unknown relocation (%u)"), other
);
3316 else if (size
!= bfd_get_reloc_size (rel
))
3317 as_bad (_("%u-byte relocation cannot be applied to %u-byte field"),
3318 bfd_get_reloc_size (rel
),
3320 else if (pcrel
&& !rel
->pc_relative
)
3321 as_bad (_("non-pc-relative relocation for pc-relative field"));
3322 else if ((rel
->complain_on_overflow
== complain_overflow_signed
3324 || (rel
->complain_on_overflow
== complain_overflow_unsigned
3326 as_bad (_("relocated field and relocation type differ in signedness"));
3335 as_bad (_("there are no unsigned pc-relative relocations"));
3338 case 1: return BFD_RELOC_8_PCREL
;
3339 case 2: return BFD_RELOC_16_PCREL
;
3340 case 4: return BFD_RELOC_32_PCREL
;
3341 case 8: return BFD_RELOC_64_PCREL
;
3343 as_bad (_("cannot do %u byte pc-relative relocation"), size
);
3350 case 4: return BFD_RELOC_X86_64_32S
;
3355 case 1: return BFD_RELOC_8
;
3356 case 2: return BFD_RELOC_16
;
3357 case 4: return BFD_RELOC_32
;
3358 case 8: return BFD_RELOC_64
;
3360 as_bad (_("cannot do %s %u byte relocation"),
3361 sign
> 0 ? "signed" : "unsigned", size
);
3367 /* Here we decide which fixups can be adjusted to make them relative to
3368 the beginning of the section instead of the symbol. Basically we need
3369 to make sure that the dynamic relocations are done correctly, so in
3370 some cases we force the original symbol to be used. */
3373 tc_i386_fix_adjustable (fixS
*fixP ATTRIBUTE_UNUSED
)
3375 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3379 /* Don't adjust pc-relative references to merge sections in 64-bit
3381 if (use_rela_relocations
3382 && (S_GET_SEGMENT (fixP
->fx_addsy
)->flags
& SEC_MERGE
) != 0
3386 /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations
3387 and changed later by validate_fix. */
3388 if (GOT_symbol
&& fixP
->fx_subsy
== GOT_symbol
3389 && fixP
->fx_r_type
== BFD_RELOC_32_PCREL
)
3392 /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol
3393 for size relocations. */
3394 if (fixP
->fx_r_type
== BFD_RELOC_SIZE32
3395 || fixP
->fx_r_type
== BFD_RELOC_SIZE64
3396 || fixP
->fx_r_type
== BFD_RELOC_386_GOTOFF
3397 || fixP
->fx_r_type
== BFD_RELOC_386_PLT32
3398 || fixP
->fx_r_type
== BFD_RELOC_386_GOT32
3399 || fixP
->fx_r_type
== BFD_RELOC_386_GOT32X
3400 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GD
3401 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LDM
3402 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LDO_32
3403 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_IE_32
3404 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_IE
3405 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GOTIE
3406 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LE_32
3407 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_LE
3408 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_GOTDESC
3409 || fixP
->fx_r_type
== BFD_RELOC_386_TLS_DESC_CALL
3410 || fixP
->fx_r_type
== BFD_RELOC_X86_64_PLT32
3411 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOT32
3412 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTPCREL
3413 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTPCRELX
3414 || fixP
->fx_r_type
== BFD_RELOC_X86_64_REX_GOTPCRELX
3415 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSGD
3416 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSLD
3417 || fixP
->fx_r_type
== BFD_RELOC_X86_64_DTPOFF32
3418 || fixP
->fx_r_type
== BFD_RELOC_X86_64_DTPOFF64
3419 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTTPOFF
3420 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TPOFF32
3421 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TPOFF64
3422 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTOFF64
3423 || fixP
->fx_r_type
== BFD_RELOC_X86_64_GOTPC32_TLSDESC
3424 || fixP
->fx_r_type
== BFD_RELOC_X86_64_TLSDESC_CALL
3425 || fixP
->fx_r_type
== BFD_RELOC_VTABLE_INHERIT
3426 || fixP
->fx_r_type
== BFD_RELOC_VTABLE_ENTRY
)
3433 intel_float_operand (const char *mnemonic
)
3435 /* Note that the value returned is meaningful only for opcodes with (memory)
3436 operands, hence the code here is free to improperly handle opcodes that
3437 have no operands (for better performance and smaller code). */
3439 if (mnemonic
[0] != 'f')
3440 return 0; /* non-math */
3442 switch (mnemonic
[1])
3444 /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and
3445 the fs segment override prefix not currently handled because no
3446 call path can make opcodes without operands get here */
3448 return 2 /* integer op */;
3450 if (mnemonic
[2] == 'd' && (mnemonic
[3] == 'c' || mnemonic
[3] == 'e'))
3451 return 3; /* fldcw/fldenv */
3454 if (mnemonic
[2] != 'o' /* fnop */)
3455 return 3; /* non-waiting control op */
3458 if (mnemonic
[2] == 's')
3459 return 3; /* frstor/frstpm */
3462 if (mnemonic
[2] == 'a')
3463 return 3; /* fsave */
3464 if (mnemonic
[2] == 't')
3466 switch (mnemonic
[3])
3468 case 'c': /* fstcw */
3469 case 'd': /* fstdw */
3470 case 'e': /* fstenv */
3471 case 's': /* fsts[gw] */
3477 if (mnemonic
[2] == 'r' || mnemonic
[2] == 's')
3478 return 0; /* fxsave/fxrstor are not really math ops */
3485 /* Build the VEX prefix. */
3488 build_vex_prefix (const insn_template
*t
)
3490 unsigned int register_specifier
;
3491 unsigned int implied_prefix
;
3492 unsigned int vector_length
;
3495 /* Check register specifier. */
3496 if (i
.vex
.register_specifier
)
3498 register_specifier
=
3499 ~register_number (i
.vex
.register_specifier
) & 0xf;
3500 gas_assert ((i
.vex
.register_specifier
->reg_flags
& RegVRex
) == 0);
3503 register_specifier
= 0xf;
3505 /* Use 2-byte VEX prefix by swapping destination and source operand
3506 if there are more than 1 register operand. */
3507 if (i
.reg_operands
> 1
3508 && i
.vec_encoding
!= vex_encoding_vex3
3509 && i
.dir_encoding
== dir_encoding_default
3510 && i
.operands
== i
.reg_operands
3511 && operand_type_equal (&i
.types
[0], &i
.types
[i
.operands
- 1])
3512 && i
.tm
.opcode_modifier
.vexopcode
== VEX0F
3513 && (i
.tm
.opcode_modifier
.load
|| i
.tm
.opcode_modifier
.d
)
3516 unsigned int xchg
= i
.operands
- 1;
3517 union i386_op temp_op
;
3518 i386_operand_type temp_type
;
3520 temp_type
= i
.types
[xchg
];
3521 i
.types
[xchg
] = i
.types
[0];
3522 i
.types
[0] = temp_type
;
3523 temp_op
= i
.op
[xchg
];
3524 i
.op
[xchg
] = i
.op
[0];
3527 gas_assert (i
.rm
.mode
== 3);
3531 i
.rm
.regmem
= i
.rm
.reg
;
3534 if (i
.tm
.opcode_modifier
.d
)
3535 i
.tm
.base_opcode
^= (i
.tm
.base_opcode
& 0xee) != 0x6e
3536 ? Opcode_SIMD_FloatD
: Opcode_SIMD_IntD
;
3537 else /* Use the next insn. */
3541 /* Use 2-byte VEX prefix by swapping commutative source operands if there
3542 are no memory operands and at least 3 register ones. */
3543 if (i
.reg_operands
>= 3
3544 && i
.vec_encoding
!= vex_encoding_vex3
3545 && i
.reg_operands
== i
.operands
- i
.imm_operands
3546 && i
.tm
.opcode_modifier
.vex
3547 && i
.tm
.opcode_modifier
.commutative
3548 && (i
.tm
.opcode_modifier
.sse2avx
|| optimize
> 1)
3550 && i
.vex
.register_specifier
3551 && !(i
.vex
.register_specifier
->reg_flags
& RegRex
))
3553 unsigned int xchg
= i
.operands
- i
.reg_operands
;
3554 union i386_op temp_op
;
3555 i386_operand_type temp_type
;
3557 gas_assert (i
.tm
.opcode_modifier
.vexopcode
== VEX0F
);
3558 gas_assert (!i
.tm
.opcode_modifier
.sae
);
3559 gas_assert (operand_type_equal (&i
.types
[i
.operands
- 2],
3560 &i
.types
[i
.operands
- 3]));
3561 gas_assert (i
.rm
.mode
== 3);
3563 temp_type
= i
.types
[xchg
];
3564 i
.types
[xchg
] = i
.types
[xchg
+ 1];
3565 i
.types
[xchg
+ 1] = temp_type
;
3566 temp_op
= i
.op
[xchg
];
3567 i
.op
[xchg
] = i
.op
[xchg
+ 1];
3568 i
.op
[xchg
+ 1] = temp_op
;
3571 xchg
= i
.rm
.regmem
| 8;
3572 i
.rm
.regmem
= ~register_specifier
& 0xf;
3573 gas_assert (!(i
.rm
.regmem
& 8));
3574 i
.vex
.register_specifier
+= xchg
- i
.rm
.regmem
;
3575 register_specifier
= ~xchg
& 0xf;
3578 if (i
.tm
.opcode_modifier
.vex
== VEXScalar
)
3579 vector_length
= avxscalar
;
3580 else if (i
.tm
.opcode_modifier
.vex
== VEX256
)
3586 /* Determine vector length from the last multi-length vector
3589 for (op
= t
->operands
; op
--;)
3590 if (t
->operand_types
[op
].bitfield
.xmmword
3591 && t
->operand_types
[op
].bitfield
.ymmword
3592 && i
.types
[op
].bitfield
.ymmword
)
3599 switch ((i
.tm
.base_opcode
>> 8) & 0xff)
3604 case DATA_PREFIX_OPCODE
:
3607 case REPE_PREFIX_OPCODE
:
3610 case REPNE_PREFIX_OPCODE
:
3617 /* Check the REX.W bit and VEXW. */
3618 if (i
.tm
.opcode_modifier
.vexw
== VEXWIG
)
3619 w
= (vexwig
== vexw1
|| (i
.rex
& REX_W
)) ? 1 : 0;
3620 else if (i
.tm
.opcode_modifier
.vexw
)
3621 w
= i
.tm
.opcode_modifier
.vexw
== VEXW1
? 1 : 0;
3623 w
= (flag_code
== CODE_64BIT
? i
.rex
& REX_W
: vexwig
== vexw1
) ? 1 : 0;
3625 /* Use 2-byte VEX prefix if possible. */
3627 && i
.vec_encoding
!= vex_encoding_vex3
3628 && i
.tm
.opcode_modifier
.vexopcode
== VEX0F
3629 && (i
.rex
& (REX_W
| REX_X
| REX_B
)) == 0)
3631 /* 2-byte VEX prefix. */
3635 i
.vex
.bytes
[0] = 0xc5;
3637 /* Check the REX.R bit. */
3638 r
= (i
.rex
& REX_R
) ? 0 : 1;
3639 i
.vex
.bytes
[1] = (r
<< 7
3640 | register_specifier
<< 3
3641 | vector_length
<< 2
3646 /* 3-byte VEX prefix. */
3651 switch (i
.tm
.opcode_modifier
.vexopcode
)
3655 i
.vex
.bytes
[0] = 0xc4;
3659 i
.vex
.bytes
[0] = 0xc4;
3663 i
.vex
.bytes
[0] = 0xc4;
3667 i
.vex
.bytes
[0] = 0x8f;
3671 i
.vex
.bytes
[0] = 0x8f;
3675 i
.vex
.bytes
[0] = 0x8f;
3681 /* The high 3 bits of the second VEX byte are 1's compliment
3682 of RXB bits from REX. */
3683 i
.vex
.bytes
[1] = (~i
.rex
& 0x7) << 5 | m
;
3685 i
.vex
.bytes
[2] = (w
<< 7
3686 | register_specifier
<< 3
3687 | vector_length
<< 2
3692 static INLINE bfd_boolean
3693 is_evex_encoding (const insn_template
*t
)
3695 return t
->opcode_modifier
.evex
|| t
->opcode_modifier
.disp8memshift
3696 || t
->opcode_modifier
.broadcast
|| t
->opcode_modifier
.masking
3697 || t
->opcode_modifier
.sae
;
3700 static INLINE bfd_boolean
3701 is_any_vex_encoding (const insn_template
*t
)
3703 return t
->opcode_modifier
.vex
|| t
->opcode_modifier
.vexopcode
3704 || is_evex_encoding (t
);
3707 /* Build the EVEX prefix. */
3710 build_evex_prefix (void)
3712 unsigned int register_specifier
;
3713 unsigned int implied_prefix
;
3715 rex_byte vrex_used
= 0;
3717 /* Check register specifier. */
3718 if (i
.vex
.register_specifier
)
3720 gas_assert ((i
.vrex
& REX_X
) == 0);
3722 register_specifier
= i
.vex
.register_specifier
->reg_num
;
3723 if ((i
.vex
.register_specifier
->reg_flags
& RegRex
))
3724 register_specifier
+= 8;
3725 /* The upper 16 registers are encoded in the fourth byte of the
3727 if (!(i
.vex
.register_specifier
->reg_flags
& RegVRex
))
3728 i
.vex
.bytes
[3] = 0x8;
3729 register_specifier
= ~register_specifier
& 0xf;
3733 register_specifier
= 0xf;
3735 /* Encode upper 16 vector index register in the fourth byte of
3737 if (!(i
.vrex
& REX_X
))
3738 i
.vex
.bytes
[3] = 0x8;
3743 switch ((i
.tm
.base_opcode
>> 8) & 0xff)
3748 case DATA_PREFIX_OPCODE
:
3751 case REPE_PREFIX_OPCODE
:
3754 case REPNE_PREFIX_OPCODE
:
3761 /* 4 byte EVEX prefix. */
3763 i
.vex
.bytes
[0] = 0x62;
3766 switch (i
.tm
.opcode_modifier
.vexopcode
)
3782 /* The high 3 bits of the second EVEX byte are 1's compliment of RXB
3784 i
.vex
.bytes
[1] = (~i
.rex
& 0x7) << 5 | m
;
3786 /* The fifth bit of the second EVEX byte is 1's compliment of the
3787 REX_R bit in VREX. */
3788 if (!(i
.vrex
& REX_R
))
3789 i
.vex
.bytes
[1] |= 0x10;
3793 if ((i
.reg_operands
+ i
.imm_operands
) == i
.operands
)
3795 /* When all operands are registers, the REX_X bit in REX is not
3796 used. We reuse it to encode the upper 16 registers, which is
3797 indicated by the REX_B bit in VREX. The REX_X bit is encoded
3798 as 1's compliment. */
3799 if ((i
.vrex
& REX_B
))
3802 i
.vex
.bytes
[1] &= ~0x40;
3806 /* EVEX instructions shouldn't need the REX prefix. */
3807 i
.vrex
&= ~vrex_used
;
3808 gas_assert (i
.vrex
== 0);
3810 /* Check the REX.W bit and VEXW. */
3811 if (i
.tm
.opcode_modifier
.vexw
== VEXWIG
)
3812 w
= (evexwig
== evexw1
|| (i
.rex
& REX_W
)) ? 1 : 0;
3813 else if (i
.tm
.opcode_modifier
.vexw
)
3814 w
= i
.tm
.opcode_modifier
.vexw
== VEXW1
? 1 : 0;
3816 w
= (flag_code
== CODE_64BIT
? i
.rex
& REX_W
: evexwig
== evexw1
) ? 1 : 0;
3818 /* Encode the U bit. */
3819 implied_prefix
|= 0x4;
3821 /* The third byte of the EVEX prefix. */
3822 i
.vex
.bytes
[2] = (w
<< 7 | register_specifier
<< 3 | implied_prefix
);
3824 /* The fourth byte of the EVEX prefix. */
3825 /* The zeroing-masking bit. */
3826 if (i
.mask
&& i
.mask
->zeroing
)
3827 i
.vex
.bytes
[3] |= 0x80;
3829 /* Don't always set the broadcast bit if there is no RC. */
3832 /* Encode the vector length. */
3833 unsigned int vec_length
;
3835 if (!i
.tm
.opcode_modifier
.evex
3836 || i
.tm
.opcode_modifier
.evex
== EVEXDYN
)
3840 /* Determine vector length from the last multi-length vector
3843 for (op
= i
.operands
; op
--;)
3844 if (i
.tm
.operand_types
[op
].bitfield
.xmmword
3845 + i
.tm
.operand_types
[op
].bitfield
.ymmword
3846 + i
.tm
.operand_types
[op
].bitfield
.zmmword
> 1)
3848 if (i
.types
[op
].bitfield
.zmmword
)
3850 i
.tm
.opcode_modifier
.evex
= EVEX512
;
3853 else if (i
.types
[op
].bitfield
.ymmword
)
3855 i
.tm
.opcode_modifier
.evex
= EVEX256
;
3858 else if (i
.types
[op
].bitfield
.xmmword
)
3860 i
.tm
.opcode_modifier
.evex
= EVEX128
;
3863 else if (i
.broadcast
&& (int) op
== i
.broadcast
->operand
)
3865 switch (i
.broadcast
->bytes
)
3868 i
.tm
.opcode_modifier
.evex
= EVEX512
;
3871 i
.tm
.opcode_modifier
.evex
= EVEX256
;
3874 i
.tm
.opcode_modifier
.evex
= EVEX128
;
3883 if (op
>= MAX_OPERANDS
)
3887 switch (i
.tm
.opcode_modifier
.evex
)
3889 case EVEXLIG
: /* LL' is ignored */
3890 vec_length
= evexlig
<< 5;
3893 vec_length
= 0 << 5;
3896 vec_length
= 1 << 5;
3899 vec_length
= 2 << 5;
3905 i
.vex
.bytes
[3] |= vec_length
;
3906 /* Encode the broadcast bit. */
3908 i
.vex
.bytes
[3] |= 0x10;
3912 if (i
.rounding
->type
!= saeonly
)
3913 i
.vex
.bytes
[3] |= 0x10 | (i
.rounding
->type
<< 5);
3915 i
.vex
.bytes
[3] |= 0x10 | (evexrcig
<< 5);
3918 if (i
.mask
&& i
.mask
->mask
)
3919 i
.vex
.bytes
[3] |= i
.mask
->mask
->reg_num
;
3923 process_immext (void)
3927 /* These AMD 3DNow! and SSE2 instructions have an opcode suffix
3928 which is coded in the same place as an 8-bit immediate field
3929 would be. Here we fake an 8-bit immediate operand from the
3930 opcode suffix stored in tm.extension_opcode.
3932 AVX instructions also use this encoding, for some of
3933 3 argument instructions. */
3935 gas_assert (i
.imm_operands
<= 1
3937 || (is_any_vex_encoding (&i
.tm
)
3938 && i
.operands
<= 4)));
3940 exp
= &im_expressions
[i
.imm_operands
++];
3941 i
.op
[i
.operands
].imms
= exp
;
3942 i
.types
[i
.operands
] = imm8
;
3944 exp
->X_op
= O_constant
;
3945 exp
->X_add_number
= i
.tm
.extension_opcode
;
3946 i
.tm
.extension_opcode
= None
;
3953 switch (i
.tm
.opcode_modifier
.hleprefixok
)
3958 as_bad (_("invalid instruction `%s' after `%s'"),
3959 i
.tm
.name
, i
.hle_prefix
);
3962 if (i
.prefix
[LOCK_PREFIX
])
3964 as_bad (_("missing `lock' with `%s'"), i
.hle_prefix
);
3968 case HLEPrefixRelease
:
3969 if (i
.prefix
[HLE_PREFIX
] != XRELEASE_PREFIX_OPCODE
)
3971 as_bad (_("instruction `%s' after `xacquire' not allowed"),
3975 if (i
.mem_operands
== 0 || !(i
.flags
[i
.operands
- 1] & Operand_Mem
))
3977 as_bad (_("memory destination needed for instruction `%s'"
3978 " after `xrelease'"), i
.tm
.name
);
3985 /* Try the shortest encoding by shortening operand size. */
3988 optimize_encoding (void)
3992 if (optimize_for_space
3993 && !is_any_vex_encoding (&i
.tm
)
3994 && i
.reg_operands
== 1
3995 && i
.imm_operands
== 1
3996 && !i
.types
[1].bitfield
.byte
3997 && i
.op
[0].imms
->X_op
== O_constant
3998 && fits_in_imm7 (i
.op
[0].imms
->X_add_number
)
3999 && (i
.tm
.base_opcode
== 0xa8
4000 || (i
.tm
.base_opcode
== 0xf6
4001 && i
.tm
.extension_opcode
== 0x0)))
4004 test $imm7, %r64/%r32/%r16 -> test $imm7, %r8
4006 unsigned int base_regnum
= i
.op
[1].regs
->reg_num
;
4007 if (flag_code
== CODE_64BIT
|| base_regnum
< 4)
4009 i
.types
[1].bitfield
.byte
= 1;
4010 /* Ignore the suffix. */
4012 /* Convert to byte registers. */
4013 if (i
.types
[1].bitfield
.word
)
4015 else if (i
.types
[1].bitfield
.dword
)
4019 if (!(i
.op
[1].regs
->reg_flags
& RegRex
) && base_regnum
< 4)
4024 else if (flag_code
== CODE_64BIT
4025 && !is_any_vex_encoding (&i
.tm
)
4026 && ((i
.types
[1].bitfield
.qword
4027 && i
.reg_operands
== 1
4028 && i
.imm_operands
== 1
4029 && i
.op
[0].imms
->X_op
== O_constant
4030 && ((i
.tm
.base_opcode
== 0xb8
4031 && i
.tm
.extension_opcode
== None
4032 && fits_in_unsigned_long (i
.op
[0].imms
->X_add_number
))
4033 || (fits_in_imm31 (i
.op
[0].imms
->X_add_number
)
4034 && ((i
.tm
.base_opcode
== 0x24
4035 || i
.tm
.base_opcode
== 0xa8)
4036 || (i
.tm
.base_opcode
== 0x80
4037 && i
.tm
.extension_opcode
== 0x4)
4038 || ((i
.tm
.base_opcode
== 0xf6
4039 || (i
.tm
.base_opcode
| 1) == 0xc7)
4040 && i
.tm
.extension_opcode
== 0x0)))
4041 || (fits_in_imm7 (i
.op
[0].imms
->X_add_number
)
4042 && i
.tm
.base_opcode
== 0x83
4043 && i
.tm
.extension_opcode
== 0x4)))
4044 || (i
.types
[0].bitfield
.qword
4045 && ((i
.reg_operands
== 2
4046 && i
.op
[0].regs
== i
.op
[1].regs
4047 && (i
.tm
.base_opcode
== 0x30
4048 || i
.tm
.base_opcode
== 0x28))
4049 || (i
.reg_operands
== 1
4051 && i
.tm
.base_opcode
== 0x30)))))
4054 andq $imm31, %r64 -> andl $imm31, %r32
4055 andq $imm7, %r64 -> andl $imm7, %r32
4056 testq $imm31, %r64 -> testl $imm31, %r32
4057 xorq %r64, %r64 -> xorl %r32, %r32
4058 subq %r64, %r64 -> subl %r32, %r32
4059 movq $imm31, %r64 -> movl $imm31, %r32
4060 movq $imm32, %r64 -> movl $imm32, %r32
4062 i
.tm
.opcode_modifier
.norex64
= 1;
4063 if (i
.tm
.base_opcode
== 0xb8 || (i
.tm
.base_opcode
| 1) == 0xc7)
4066 movq $imm31, %r64 -> movl $imm31, %r32
4067 movq $imm32, %r64 -> movl $imm32, %r32
4069 i
.tm
.operand_types
[0].bitfield
.imm32
= 1;
4070 i
.tm
.operand_types
[0].bitfield
.imm32s
= 0;
4071 i
.tm
.operand_types
[0].bitfield
.imm64
= 0;
4072 i
.types
[0].bitfield
.imm32
= 1;
4073 i
.types
[0].bitfield
.imm32s
= 0;
4074 i
.types
[0].bitfield
.imm64
= 0;
4075 i
.types
[1].bitfield
.dword
= 1;
4076 i
.types
[1].bitfield
.qword
= 0;
4077 if ((i
.tm
.base_opcode
| 1) == 0xc7)
4080 movq $imm31, %r64 -> movl $imm31, %r32
4082 i
.tm
.base_opcode
= 0xb8;
4083 i
.tm
.extension_opcode
= None
;
4084 i
.tm
.opcode_modifier
.w
= 0;
4085 i
.tm
.opcode_modifier
.shortform
= 1;
4086 i
.tm
.opcode_modifier
.modrm
= 0;
4090 else if (optimize
> 1
4091 && !optimize_for_space
4092 && !is_any_vex_encoding (&i
.tm
)
4093 && i
.reg_operands
== 2
4094 && i
.op
[0].regs
== i
.op
[1].regs
4095 && ((i
.tm
.base_opcode
& ~(Opcode_D
| 1)) == 0x8
4096 || (i
.tm
.base_opcode
& ~(Opcode_D
| 1)) == 0x20)
4097 && (flag_code
!= CODE_64BIT
|| !i
.types
[0].bitfield
.dword
))
4100 andb %rN, %rN -> testb %rN, %rN
4101 andw %rN, %rN -> testw %rN, %rN
4102 andq %rN, %rN -> testq %rN, %rN
4103 orb %rN, %rN -> testb %rN, %rN
4104 orw %rN, %rN -> testw %rN, %rN
4105 orq %rN, %rN -> testq %rN, %rN
4107 and outside of 64-bit mode
4109 andl %rN, %rN -> testl %rN, %rN
4110 orl %rN, %rN -> testl %rN, %rN
4112 i
.tm
.base_opcode
= 0x84 | (i
.tm
.base_opcode
& 1);
4114 else if (i
.reg_operands
== 3
4115 && i
.op
[0].regs
== i
.op
[1].regs
4116 && !i
.types
[2].bitfield
.xmmword
4117 && (i
.tm
.opcode_modifier
.vex
4118 || ((!i
.mask
|| i
.mask
->zeroing
)
4120 && is_evex_encoding (&i
.tm
)
4121 && (i
.vec_encoding
!= vex_encoding_evex
4122 || cpu_arch_isa_flags
.bitfield
.cpuavx512vl
4123 || i
.tm
.cpu_flags
.bitfield
.cpuavx512vl
4124 || (i
.tm
.operand_types
[2].bitfield
.zmmword
4125 && i
.types
[2].bitfield
.ymmword
))))
4126 && ((i
.tm
.base_opcode
== 0x55
4127 || i
.tm
.base_opcode
== 0x6655
4128 || i
.tm
.base_opcode
== 0x66df
4129 || i
.tm
.base_opcode
== 0x57
4130 || i
.tm
.base_opcode
== 0x6657
4131 || i
.tm
.base_opcode
== 0x66ef
4132 || i
.tm
.base_opcode
== 0x66f8
4133 || i
.tm
.base_opcode
== 0x66f9
4134 || i
.tm
.base_opcode
== 0x66fa
4135 || i
.tm
.base_opcode
== 0x66fb
4136 || i
.tm
.base_opcode
== 0x42
4137 || i
.tm
.base_opcode
== 0x6642
4138 || i
.tm
.base_opcode
== 0x47
4139 || i
.tm
.base_opcode
== 0x6647)
4140 && i
.tm
.extension_opcode
== None
))
4143 VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd,
4145 EVEX VOP %zmmM, %zmmM, %zmmN
4146 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4147 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4148 EVEX VOP %ymmM, %ymmM, %ymmN
4149 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4150 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4151 VEX VOP %ymmM, %ymmM, %ymmN
4152 -> VEX VOP %xmmM, %xmmM, %xmmN
4153 VOP, one of vpandn and vpxor:
4154 VEX VOP %ymmM, %ymmM, %ymmN
4155 -> VEX VOP %xmmM, %xmmM, %xmmN
4156 VOP, one of vpandnd and vpandnq:
4157 EVEX VOP %zmmM, %zmmM, %zmmN
4158 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4159 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4160 EVEX VOP %ymmM, %ymmM, %ymmN
4161 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4162 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4163 VOP, one of vpxord and vpxorq:
4164 EVEX VOP %zmmM, %zmmM, %zmmN
4165 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4166 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4167 EVEX VOP %ymmM, %ymmM, %ymmN
4168 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4169 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4170 VOP, one of kxord and kxorq:
4171 VEX VOP %kM, %kM, %kN
4172 -> VEX kxorw %kM, %kM, %kN
4173 VOP, one of kandnd and kandnq:
4174 VEX VOP %kM, %kM, %kN
4175 -> VEX kandnw %kM, %kM, %kN
4177 if (is_evex_encoding (&i
.tm
))
4179 if (i
.vec_encoding
!= vex_encoding_evex
)
4181 i
.tm
.opcode_modifier
.vex
= VEX128
;
4182 i
.tm
.opcode_modifier
.vexw
= VEXW0
;
4183 i
.tm
.opcode_modifier
.evex
= 0;
4185 else if (optimize
> 1)
4186 i
.tm
.opcode_modifier
.evex
= EVEX128
;
4190 else if (i
.tm
.operand_types
[0].bitfield
.class == RegMask
)
4192 i
.tm
.base_opcode
&= 0xff;
4193 i
.tm
.opcode_modifier
.vexw
= VEXW0
;
4196 i
.tm
.opcode_modifier
.vex
= VEX128
;
4198 if (i
.tm
.opcode_modifier
.vex
)
4199 for (j
= 0; j
< 3; j
++)
4201 i
.types
[j
].bitfield
.xmmword
= 1;
4202 i
.types
[j
].bitfield
.ymmword
= 0;
4205 else if (i
.vec_encoding
!= vex_encoding_evex
4206 && !i
.types
[0].bitfield
.zmmword
4207 && !i
.types
[1].bitfield
.zmmword
4210 && is_evex_encoding (&i
.tm
)
4211 && ((i
.tm
.base_opcode
& ~Opcode_SIMD_IntD
) == 0x666f
4212 || (i
.tm
.base_opcode
& ~Opcode_SIMD_IntD
) == 0xf36f
4213 || (i
.tm
.base_opcode
& ~Opcode_SIMD_IntD
) == 0xf26f
4214 || (i
.tm
.base_opcode
& ~4) == 0x66db
4215 || (i
.tm
.base_opcode
& ~4) == 0x66eb)
4216 && i
.tm
.extension_opcode
== None
)
4219 VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16,
4220 vmovdqu32 and vmovdqu64:
4221 EVEX VOP %xmmM, %xmmN
4222 -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16)
4223 EVEX VOP %ymmM, %ymmN
4224 -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16)
4226 -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16)
4228 -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16)
4230 -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16)
4232 -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16)
4233 VOP, one of vpand, vpandn, vpor, vpxor:
4234 EVEX VOP{d,q} %xmmL, %xmmM, %xmmN
4235 -> VEX VOP %xmmL, %xmmM, %xmmN (L, M, and N < 16)
4236 EVEX VOP{d,q} %ymmL, %ymmM, %ymmN
4237 -> VEX VOP %ymmL, %ymmM, %ymmN (L, M, and N < 16)
4238 EVEX VOP{d,q} mem, %xmmM, %xmmN
4239 -> VEX VOP mem, %xmmM, %xmmN (M and N < 16)
4240 EVEX VOP{d,q} mem, %ymmM, %ymmN
4241 -> VEX VOP mem, %ymmM, %ymmN (M and N < 16)
4243 for (j
= 0; j
< i
.operands
; j
++)
4244 if (operand_type_check (i
.types
[j
], disp
)
4245 && i
.op
[j
].disps
->X_op
== O_constant
)
4247 /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix
4248 has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4
4249 bytes, we choose EVEX Disp8 over VEX Disp32. */
4250 int evex_disp8
, vex_disp8
;
4251 unsigned int memshift
= i
.memshift
;
4252 offsetT n
= i
.op
[j
].disps
->X_add_number
;
4254 evex_disp8
= fits_in_disp8 (n
);
4256 vex_disp8
= fits_in_disp8 (n
);
4257 if (evex_disp8
!= vex_disp8
)
4259 i
.memshift
= memshift
;
4263 i
.types
[j
].bitfield
.disp8
= vex_disp8
;
4266 if ((i
.tm
.base_opcode
& ~Opcode_SIMD_IntD
) == 0xf26f)
4267 i
.tm
.base_opcode
^= 0xf36f ^ 0xf26f;
4268 i
.tm
.opcode_modifier
.vex
4269 = i
.types
[0].bitfield
.ymmword
? VEX256
: VEX128
;
4270 i
.tm
.opcode_modifier
.vexw
= VEXW0
;
4271 /* VPAND, VPOR, and VPXOR are commutative. */
4272 if (i
.reg_operands
== 3 && i
.tm
.base_opcode
!= 0x66df)
4273 i
.tm
.opcode_modifier
.commutative
= 1;
4274 i
.tm
.opcode_modifier
.evex
= 0;
4275 i
.tm
.opcode_modifier
.masking
= 0;
4276 i
.tm
.opcode_modifier
.broadcast
= 0;
4277 i
.tm
.opcode_modifier
.disp8memshift
= 0;
4280 i
.types
[j
].bitfield
.disp8
4281 = fits_in_disp8 (i
.op
[j
].disps
->X_add_number
);
4285 /* This is the guts of the machine-dependent assembler. LINE points to a
4286 machine dependent instruction. This function is supposed to emit
4287 the frags/bytes it assembles to. */
4290 md_assemble (char *line
)
4293 char mnemonic
[MAX_MNEM_SIZE
], mnem_suffix
;
4294 const insn_template
*t
;
4296 /* Initialize globals. */
4297 memset (&i
, '\0', sizeof (i
));
4298 for (j
= 0; j
< MAX_OPERANDS
; j
++)
4299 i
.reloc
[j
] = NO_RELOC
;
4300 memset (disp_expressions
, '\0', sizeof (disp_expressions
));
4301 memset (im_expressions
, '\0', sizeof (im_expressions
));
4302 save_stack_p
= save_stack
;
4304 /* First parse an instruction mnemonic & call i386_operand for the operands.
4305 We assume that the scrubber has arranged it so that line[0] is the valid
4306 start of a (possibly prefixed) mnemonic. */
4308 line
= parse_insn (line
, mnemonic
);
4311 mnem_suffix
= i
.suffix
;
4313 line
= parse_operands (line
, mnemonic
);
4315 xfree (i
.memop1_string
);
4316 i
.memop1_string
= NULL
;
4320 /* Now we've parsed the mnemonic into a set of templates, and have the
4321 operands at hand. */
4323 /* All intel opcodes have reversed operands except for "bound" and
4324 "enter". We also don't reverse intersegment "jmp" and "call"
4325 instructions with 2 immediate operands so that the immediate segment
4326 precedes the offset, as it does when in AT&T mode. */
4329 && (strcmp (mnemonic
, "bound") != 0)
4330 && (strcmp (mnemonic
, "invlpga") != 0)
4331 && !(operand_type_check (i
.types
[0], imm
)
4332 && operand_type_check (i
.types
[1], imm
)))
4335 /* The order of the immediates should be reversed
4336 for 2 immediates extrq and insertq instructions */
4337 if (i
.imm_operands
== 2
4338 && (strcmp (mnemonic
, "extrq") == 0
4339 || strcmp (mnemonic
, "insertq") == 0))
4340 swap_2_operands (0, 1);
4345 /* Don't optimize displacement for movabs since it only takes 64bit
4348 && i
.disp_encoding
!= disp_encoding_32bit
4349 && (flag_code
!= CODE_64BIT
4350 || strcmp (mnemonic
, "movabs") != 0))
4353 /* Next, we find a template that matches the given insn,
4354 making sure the overlap of the given operands types is consistent
4355 with the template operand types. */
4357 if (!(t
= match_template (mnem_suffix
)))
4360 if (sse_check
!= check_none
4361 && !i
.tm
.opcode_modifier
.noavx
4362 && !i
.tm
.cpu_flags
.bitfield
.cpuavx
4363 && !i
.tm
.cpu_flags
.bitfield
.cpuavx512f
4364 && (i
.tm
.cpu_flags
.bitfield
.cpusse
4365 || i
.tm
.cpu_flags
.bitfield
.cpusse2
4366 || i
.tm
.cpu_flags
.bitfield
.cpusse3
4367 || i
.tm
.cpu_flags
.bitfield
.cpussse3
4368 || i
.tm
.cpu_flags
.bitfield
.cpusse4_1
4369 || i
.tm
.cpu_flags
.bitfield
.cpusse4_2
4370 || i
.tm
.cpu_flags
.bitfield
.cpusse4a
4371 || i
.tm
.cpu_flags
.bitfield
.cpupclmul
4372 || i
.tm
.cpu_flags
.bitfield
.cpuaes
4373 || i
.tm
.cpu_flags
.bitfield
.cpusha
4374 || i
.tm
.cpu_flags
.bitfield
.cpugfni
))
4376 (sse_check
== check_warning
4378 : as_bad
) (_("SSE instruction `%s' is used"), i
.tm
.name
);
4381 /* Zap movzx and movsx suffix. The suffix has been set from
4382 "word ptr" or "byte ptr" on the source operand in Intel syntax
4383 or extracted from mnemonic in AT&T syntax. But we'll use
4384 the destination register to choose the suffix for encoding. */
4385 if ((i
.tm
.base_opcode
& ~9) == 0x0fb6)
4387 /* In Intel syntax, there must be a suffix. In AT&T syntax, if
4388 there is no suffix, the default will be byte extension. */
4389 if (i
.reg_operands
!= 2
4392 as_bad (_("ambiguous operand size for `%s'"), i
.tm
.name
);
4397 if (i
.tm
.opcode_modifier
.fwait
)
4398 if (!add_prefix (FWAIT_OPCODE
))
4401 /* Check if REP prefix is OK. */
4402 if (i
.rep_prefix
&& !i
.tm
.opcode_modifier
.repprefixok
)
4404 as_bad (_("invalid instruction `%s' after `%s'"),
4405 i
.tm
.name
, i
.rep_prefix
);
4409 /* Check for lock without a lockable instruction. Destination operand
4410 must be memory unless it is xchg (0x86). */
4411 if (i
.prefix
[LOCK_PREFIX
]
4412 && (!i
.tm
.opcode_modifier
.islockable
4413 || i
.mem_operands
== 0
4414 || (i
.tm
.base_opcode
!= 0x86
4415 && !(i
.flags
[i
.operands
- 1] & Operand_Mem
))))
4417 as_bad (_("expecting lockable instruction after `lock'"));
4421 /* Check for data size prefix on VEX/XOP/EVEX encoded insns. */
4422 if (i
.prefix
[DATA_PREFIX
] && is_any_vex_encoding (&i
.tm
))
4424 as_bad (_("data size prefix invalid with `%s'"), i
.tm
.name
);
4428 /* Check if HLE prefix is OK. */
4429 if (i
.hle_prefix
&& !check_hle ())
4432 /* Check BND prefix. */
4433 if (i
.bnd_prefix
&& !i
.tm
.opcode_modifier
.bndprefixok
)
4434 as_bad (_("expecting valid branch instruction after `bnd'"));
4436 /* Check NOTRACK prefix. */
4437 if (i
.notrack_prefix
&& !i
.tm
.opcode_modifier
.notrackprefixok
)
4438 as_bad (_("expecting indirect branch instruction after `notrack'"));
4440 if (i
.tm
.cpu_flags
.bitfield
.cpumpx
)
4442 if (flag_code
== CODE_64BIT
&& i
.prefix
[ADDR_PREFIX
])
4443 as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions."));
4444 else if (flag_code
!= CODE_16BIT
4445 ? i
.prefix
[ADDR_PREFIX
]
4446 : i
.mem_operands
&& !i
.prefix
[ADDR_PREFIX
])
4447 as_bad (_("16-bit address isn't allowed in MPX instructions"));
4450 /* Insert BND prefix. */
4451 if (add_bnd_prefix
&& i
.tm
.opcode_modifier
.bndprefixok
)
4453 if (!i
.prefix
[BND_PREFIX
])
4454 add_prefix (BND_PREFIX_OPCODE
);
4455 else if (i
.prefix
[BND_PREFIX
] != BND_PREFIX_OPCODE
)
4457 as_warn (_("replacing `rep'/`repe' prefix by `bnd'"));
4458 i
.prefix
[BND_PREFIX
] = BND_PREFIX_OPCODE
;
4462 /* Check string instruction segment overrides. */
4463 if (i
.tm
.opcode_modifier
.isstring
>= IS_STRING_ES_OP0
)
4465 gas_assert (i
.mem_operands
);
4466 if (!check_string ())
4468 i
.disp_operands
= 0;
4471 if (optimize
&& !i
.no_optimize
&& i
.tm
.opcode_modifier
.optimize
)
4472 optimize_encoding ();
4474 if (!process_suffix ())
4477 /* Update operand types. */
4478 for (j
= 0; j
< i
.operands
; j
++)
4479 i
.types
[j
] = operand_type_and (i
.types
[j
], i
.tm
.operand_types
[j
]);
4481 /* Make still unresolved immediate matches conform to size of immediate
4482 given in i.suffix. */
4483 if (!finalize_imm ())
4486 if (i
.types
[0].bitfield
.imm1
)
4487 i
.imm_operands
= 0; /* kludge for shift insns. */
4489 /* We only need to check those implicit registers for instructions
4490 with 3 operands or less. */
4491 if (i
.operands
<= 3)
4492 for (j
= 0; j
< i
.operands
; j
++)
4493 if (i
.types
[j
].bitfield
.instance
!= InstanceNone
4494 && !i
.types
[j
].bitfield
.xmmword
)
4497 /* ImmExt should be processed after SSE2AVX. */
4498 if (!i
.tm
.opcode_modifier
.sse2avx
4499 && i
.tm
.opcode_modifier
.immext
)
4502 /* For insns with operands there are more diddles to do to the opcode. */
4505 if (!process_operands ())
4508 else if (!quiet_warnings
&& i
.tm
.opcode_modifier
.ugh
)
4510 /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */
4511 as_warn (_("translating to `%sp'"), i
.tm
.name
);
4514 if (is_any_vex_encoding (&i
.tm
))
4516 if (!cpu_arch_flags
.bitfield
.cpui286
)
4518 as_bad (_("instruction `%s' isn't supported outside of protected mode."),
4523 if (i
.tm
.opcode_modifier
.vex
)
4524 build_vex_prefix (t
);
4526 build_evex_prefix ();
4529 /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4
4530 instructions may define INT_OPCODE as well, so avoid this corner
4531 case for those instructions that use MODRM. */
4532 if (i
.tm
.base_opcode
== INT_OPCODE
4533 && !i
.tm
.opcode_modifier
.modrm
4534 && i
.op
[0].imms
->X_add_number
== 3)
4536 i
.tm
.base_opcode
= INT3_OPCODE
;
4540 if ((i
.tm
.opcode_modifier
.jump
== JUMP
4541 || i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
4542 || i
.tm
.opcode_modifier
.jump
== JUMP_DWORD
)
4543 && i
.op
[0].disps
->X_op
== O_constant
)
4545 /* Convert "jmp constant" (and "call constant") to a jump (call) to
4546 the absolute address given by the constant. Since ix86 jumps and
4547 calls are pc relative, we need to generate a reloc. */
4548 i
.op
[0].disps
->X_add_symbol
= &abs_symbol
;
4549 i
.op
[0].disps
->X_op
= O_symbol
;
4552 if (i
.tm
.opcode_modifier
.rex64
)
4555 /* For 8 bit registers we need an empty rex prefix. Also if the
4556 instruction already has a prefix, we need to convert old
4557 registers to new ones. */
4559 if ((i
.types
[0].bitfield
.class == Reg
&& i
.types
[0].bitfield
.byte
4560 && (i
.op
[0].regs
->reg_flags
& RegRex64
) != 0)
4561 || (i
.types
[1].bitfield
.class == Reg
&& i
.types
[1].bitfield
.byte
4562 && (i
.op
[1].regs
->reg_flags
& RegRex64
) != 0)
4563 || (((i
.types
[0].bitfield
.class == Reg
&& i
.types
[0].bitfield
.byte
)
4564 || (i
.types
[1].bitfield
.class == Reg
&& i
.types
[1].bitfield
.byte
))
4569 i
.rex
|= REX_OPCODE
;
4570 for (x
= 0; x
< 2; x
++)
4572 /* Look for 8 bit operand that uses old registers. */
4573 if (i
.types
[x
].bitfield
.class == Reg
&& i
.types
[x
].bitfield
.byte
4574 && (i
.op
[x
].regs
->reg_flags
& RegRex64
) == 0)
4576 gas_assert (!(i
.op
[x
].regs
->reg_flags
& RegRex
));
4577 /* In case it is "hi" register, give up. */
4578 if (i
.op
[x
].regs
->reg_num
> 3)
4579 as_bad (_("can't encode register '%s%s' in an "
4580 "instruction requiring REX prefix."),
4581 register_prefix
, i
.op
[x
].regs
->reg_name
);
4583 /* Otherwise it is equivalent to the extended register.
4584 Since the encoding doesn't change this is merely
4585 cosmetic cleanup for debug output. */
4587 i
.op
[x
].regs
= i
.op
[x
].regs
+ 8;
4592 if (i
.rex
== 0 && i
.rex_encoding
)
4594 /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand
4595 that uses legacy register. If it is "hi" register, don't add
4596 the REX_OPCODE byte. */
4598 for (x
= 0; x
< 2; x
++)
4599 if (i
.types
[x
].bitfield
.class == Reg
4600 && i
.types
[x
].bitfield
.byte
4601 && (i
.op
[x
].regs
->reg_flags
& RegRex64
) == 0
4602 && i
.op
[x
].regs
->reg_num
> 3)
4604 gas_assert (!(i
.op
[x
].regs
->reg_flags
& RegRex
));
4605 i
.rex_encoding
= FALSE
;
4614 add_prefix (REX_OPCODE
| i
.rex
);
4616 /* We are ready to output the insn. */
4619 last_insn
.seg
= now_seg
;
4621 if (i
.tm
.opcode_modifier
.isprefix
)
4623 last_insn
.kind
= last_insn_prefix
;
4624 last_insn
.name
= i
.tm
.name
;
4625 last_insn
.file
= as_where (&last_insn
.line
);
4628 last_insn
.kind
= last_insn_other
;
4632 parse_insn (char *line
, char *mnemonic
)
4635 char *token_start
= l
;
4638 const insn_template
*t
;
4644 while ((*mnem_p
= mnemonic_chars
[(unsigned char) *l
]) != 0)
4649 if (mnem_p
>= mnemonic
+ MAX_MNEM_SIZE
)
4651 as_bad (_("no such instruction: `%s'"), token_start
);
4656 if (!is_space_char (*l
)
4657 && *l
!= END_OF_INSN
4659 || (*l
!= PREFIX_SEPARATOR
4662 as_bad (_("invalid character %s in mnemonic"),
4663 output_invalid (*l
));
4666 if (token_start
== l
)
4668 if (!intel_syntax
&& *l
== PREFIX_SEPARATOR
)
4669 as_bad (_("expecting prefix; got nothing"));
4671 as_bad (_("expecting mnemonic; got nothing"));
4675 /* Look up instruction (or prefix) via hash table. */
4676 current_templates
= (const templates
*) hash_find (op_hash
, mnemonic
);
4678 if (*l
!= END_OF_INSN
4679 && (!is_space_char (*l
) || l
[1] != END_OF_INSN
)
4680 && current_templates
4681 && current_templates
->start
->opcode_modifier
.isprefix
)
4683 if (!cpu_flags_check_cpu64 (current_templates
->start
->cpu_flags
))
4685 as_bad ((flag_code
!= CODE_64BIT
4686 ? _("`%s' is only supported in 64-bit mode")
4687 : _("`%s' is not supported in 64-bit mode")),
4688 current_templates
->start
->name
);
4691 /* If we are in 16-bit mode, do not allow addr16 or data16.
4692 Similarly, in 32-bit mode, do not allow addr32 or data32. */
4693 if ((current_templates
->start
->opcode_modifier
.size
== SIZE16
4694 || current_templates
->start
->opcode_modifier
.size
== SIZE32
)
4695 && flag_code
!= CODE_64BIT
4696 && ((current_templates
->start
->opcode_modifier
.size
== SIZE32
)
4697 ^ (flag_code
== CODE_16BIT
)))
4699 as_bad (_("redundant %s prefix"),
4700 current_templates
->start
->name
);
4703 if (current_templates
->start
->opcode_length
== 0)
4705 /* Handle pseudo prefixes. */
4706 switch (current_templates
->start
->base_opcode
)
4710 i
.disp_encoding
= disp_encoding_8bit
;
4714 i
.disp_encoding
= disp_encoding_32bit
;
4718 i
.dir_encoding
= dir_encoding_load
;
4722 i
.dir_encoding
= dir_encoding_store
;
4726 i
.vec_encoding
= vex_encoding_vex
;
4730 i
.vec_encoding
= vex_encoding_vex3
;
4734 i
.vec_encoding
= vex_encoding_evex
;
4738 i
.rex_encoding
= TRUE
;
4742 i
.no_optimize
= TRUE
;
4750 /* Add prefix, checking for repeated prefixes. */
4751 switch (add_prefix (current_templates
->start
->base_opcode
))
4756 if (current_templates
->start
->cpu_flags
.bitfield
.cpuibt
)
4757 i
.notrack_prefix
= current_templates
->start
->name
;
4760 if (current_templates
->start
->cpu_flags
.bitfield
.cpuhle
)
4761 i
.hle_prefix
= current_templates
->start
->name
;
4762 else if (current_templates
->start
->cpu_flags
.bitfield
.cpumpx
)
4763 i
.bnd_prefix
= current_templates
->start
->name
;
4765 i
.rep_prefix
= current_templates
->start
->name
;
4771 /* Skip past PREFIX_SEPARATOR and reset token_start. */
4778 if (!current_templates
)
4780 /* Deprecated functionality (new code should use pseudo-prefixes instead):
4781 Check if we should swap operand or force 32bit displacement in
4783 if (mnem_p
- 2 == dot_p
&& dot_p
[1] == 's')
4784 i
.dir_encoding
= dir_encoding_swap
;
4785 else if (mnem_p
- 3 == dot_p
4788 i
.disp_encoding
= disp_encoding_8bit
;
4789 else if (mnem_p
- 4 == dot_p
4793 i
.disp_encoding
= disp_encoding_32bit
;
4798 current_templates
= (const templates
*) hash_find (op_hash
, mnemonic
);
4801 if (!current_templates
)
4804 if (mnem_p
> mnemonic
)
4806 /* See if we can get a match by trimming off a suffix. */
4809 case WORD_MNEM_SUFFIX
:
4810 if (intel_syntax
&& (intel_float_operand (mnemonic
) & 2))
4811 i
.suffix
= SHORT_MNEM_SUFFIX
;
4814 case BYTE_MNEM_SUFFIX
:
4815 case QWORD_MNEM_SUFFIX
:
4816 i
.suffix
= mnem_p
[-1];
4818 current_templates
= (const templates
*) hash_find (op_hash
,
4821 case SHORT_MNEM_SUFFIX
:
4822 case LONG_MNEM_SUFFIX
:
4825 i
.suffix
= mnem_p
[-1];
4827 current_templates
= (const templates
*) hash_find (op_hash
,
4836 if (intel_float_operand (mnemonic
) == 1)
4837 i
.suffix
= SHORT_MNEM_SUFFIX
;
4839 i
.suffix
= LONG_MNEM_SUFFIX
;
4841 current_templates
= (const templates
*) hash_find (op_hash
,
4848 if (!current_templates
)
4850 as_bad (_("no such instruction: `%s'"), token_start
);
4855 if (current_templates
->start
->opcode_modifier
.jump
== JUMP
4856 || current_templates
->start
->opcode_modifier
.jump
== JUMP_BYTE
)
4858 /* Check for a branch hint. We allow ",pt" and ",pn" for
4859 predict taken and predict not taken respectively.
4860 I'm not sure that branch hints actually do anything on loop
4861 and jcxz insns (JumpByte) for current Pentium4 chips. They
4862 may work in the future and it doesn't hurt to accept them
4864 if (l
[0] == ',' && l
[1] == 'p')
4868 if (!add_prefix (DS_PREFIX_OPCODE
))
4872 else if (l
[2] == 'n')
4874 if (!add_prefix (CS_PREFIX_OPCODE
))
4880 /* Any other comma loses. */
4883 as_bad (_("invalid character %s in mnemonic"),
4884 output_invalid (*l
));
4888 /* Check if instruction is supported on specified architecture. */
4890 for (t
= current_templates
->start
; t
< current_templates
->end
; ++t
)
4892 supported
|= cpu_flags_match (t
);
4893 if (supported
== CPU_FLAGS_PERFECT_MATCH
)
4895 if (!cpu_arch_flags
.bitfield
.cpui386
&& (flag_code
!= CODE_16BIT
))
4896 as_warn (_("use .code16 to ensure correct addressing mode"));
4902 if (!(supported
& CPU_FLAGS_64BIT_MATCH
))
4903 as_bad (flag_code
== CODE_64BIT
4904 ? _("`%s' is not supported in 64-bit mode")
4905 : _("`%s' is only supported in 64-bit mode"),
4906 current_templates
->start
->name
);
4908 as_bad (_("`%s' is not supported on `%s%s'"),
4909 current_templates
->start
->name
,
4910 cpu_arch_name
? cpu_arch_name
: default_arch
,
4911 cpu_sub_arch_name
? cpu_sub_arch_name
: "");
4917 parse_operands (char *l
, const char *mnemonic
)
4921 /* 1 if operand is pending after ','. */
4922 unsigned int expecting_operand
= 0;
4924 /* Non-zero if operand parens not balanced. */
4925 unsigned int paren_not_balanced
;
4927 while (*l
!= END_OF_INSN
)
4929 /* Skip optional white space before operand. */
4930 if (is_space_char (*l
))
4932 if (!is_operand_char (*l
) && *l
!= END_OF_INSN
&& *l
!= '"')
4934 as_bad (_("invalid character %s before operand %d"),
4935 output_invalid (*l
),
4939 token_start
= l
; /* After white space. */
4940 paren_not_balanced
= 0;
4941 while (paren_not_balanced
|| *l
!= ',')
4943 if (*l
== END_OF_INSN
)
4945 if (paren_not_balanced
)
4948 as_bad (_("unbalanced parenthesis in operand %d."),
4951 as_bad (_("unbalanced brackets in operand %d."),
4956 break; /* we are done */
4958 else if (!is_operand_char (*l
) && !is_space_char (*l
) && *l
!= '"')
4960 as_bad (_("invalid character %s in operand %d"),
4961 output_invalid (*l
),
4968 ++paren_not_balanced
;
4970 --paren_not_balanced
;
4975 ++paren_not_balanced
;
4977 --paren_not_balanced
;
4981 if (l
!= token_start
)
4982 { /* Yes, we've read in another operand. */
4983 unsigned int operand_ok
;
4984 this_operand
= i
.operands
++;
4985 if (i
.operands
> MAX_OPERANDS
)
4987 as_bad (_("spurious operands; (%d operands/instruction max)"),
4991 i
.types
[this_operand
].bitfield
.unspecified
= 1;
4992 /* Now parse operand adding info to 'i' as we go along. */
4993 END_STRING_AND_SAVE (l
);
4995 if (i
.mem_operands
> 1)
4997 as_bad (_("too many memory references for `%s'"),
5004 i386_intel_operand (token_start
,
5005 intel_float_operand (mnemonic
));
5007 operand_ok
= i386_att_operand (token_start
);
5009 RESTORE_END_STRING (l
);
5015 if (expecting_operand
)
5017 expecting_operand_after_comma
:
5018 as_bad (_("expecting operand after ','; got nothing"));
5023 as_bad (_("expecting operand before ','; got nothing"));
5028 /* Now *l must be either ',' or END_OF_INSN. */
5031 if (*++l
== END_OF_INSN
)
5033 /* Just skip it, if it's \n complain. */
5034 goto expecting_operand_after_comma
;
5036 expecting_operand
= 1;
5043 swap_2_operands (int xchg1
, int xchg2
)
5045 union i386_op temp_op
;
5046 i386_operand_type temp_type
;
5047 unsigned int temp_flags
;
5048 enum bfd_reloc_code_real temp_reloc
;
5050 temp_type
= i
.types
[xchg2
];
5051 i
.types
[xchg2
] = i
.types
[xchg1
];
5052 i
.types
[xchg1
] = temp_type
;
5054 temp_flags
= i
.flags
[xchg2
];
5055 i
.flags
[xchg2
] = i
.flags
[xchg1
];
5056 i
.flags
[xchg1
] = temp_flags
;
5058 temp_op
= i
.op
[xchg2
];
5059 i
.op
[xchg2
] = i
.op
[xchg1
];
5060 i
.op
[xchg1
] = temp_op
;
5062 temp_reloc
= i
.reloc
[xchg2
];
5063 i
.reloc
[xchg2
] = i
.reloc
[xchg1
];
5064 i
.reloc
[xchg1
] = temp_reloc
;
5068 if (i
.mask
->operand
== xchg1
)
5069 i
.mask
->operand
= xchg2
;
5070 else if (i
.mask
->operand
== xchg2
)
5071 i
.mask
->operand
= xchg1
;
5075 if (i
.broadcast
->operand
== xchg1
)
5076 i
.broadcast
->operand
= xchg2
;
5077 else if (i
.broadcast
->operand
== xchg2
)
5078 i
.broadcast
->operand
= xchg1
;
5082 if (i
.rounding
->operand
== xchg1
)
5083 i
.rounding
->operand
= xchg2
;
5084 else if (i
.rounding
->operand
== xchg2
)
5085 i
.rounding
->operand
= xchg1
;
5090 swap_operands (void)
5096 swap_2_operands (1, i
.operands
- 2);
5100 swap_2_operands (0, i
.operands
- 1);
5106 if (i
.mem_operands
== 2)
5108 const seg_entry
*temp_seg
;
5109 temp_seg
= i
.seg
[0];
5110 i
.seg
[0] = i
.seg
[1];
5111 i
.seg
[1] = temp_seg
;
5115 /* Try to ensure constant immediates are represented in the smallest
5120 char guess_suffix
= 0;
5124 guess_suffix
= i
.suffix
;
5125 else if (i
.reg_operands
)
5127 /* Figure out a suffix from the last register operand specified.
5128 We can't do this properly yet, i.e. excluding special register
5129 instances, but the following works for instructions with
5130 immediates. In any case, we can't set i.suffix yet. */
5131 for (op
= i
.operands
; --op
>= 0;)
5132 if (i
.types
[op
].bitfield
.class != Reg
)
5134 else if (i
.types
[op
].bitfield
.byte
)
5136 guess_suffix
= BYTE_MNEM_SUFFIX
;
5139 else if (i
.types
[op
].bitfield
.word
)
5141 guess_suffix
= WORD_MNEM_SUFFIX
;
5144 else if (i
.types
[op
].bitfield
.dword
)
5146 guess_suffix
= LONG_MNEM_SUFFIX
;
5149 else if (i
.types
[op
].bitfield
.qword
)
5151 guess_suffix
= QWORD_MNEM_SUFFIX
;
5155 else if ((flag_code
== CODE_16BIT
) ^ (i
.prefix
[DATA_PREFIX
] != 0))
5156 guess_suffix
= WORD_MNEM_SUFFIX
;
5158 for (op
= i
.operands
; --op
>= 0;)
5159 if (operand_type_check (i
.types
[op
], imm
))
5161 switch (i
.op
[op
].imms
->X_op
)
5164 /* If a suffix is given, this operand may be shortened. */
5165 switch (guess_suffix
)
5167 case LONG_MNEM_SUFFIX
:
5168 i
.types
[op
].bitfield
.imm32
= 1;
5169 i
.types
[op
].bitfield
.imm64
= 1;
5171 case WORD_MNEM_SUFFIX
:
5172 i
.types
[op
].bitfield
.imm16
= 1;
5173 i
.types
[op
].bitfield
.imm32
= 1;
5174 i
.types
[op
].bitfield
.imm32s
= 1;
5175 i
.types
[op
].bitfield
.imm64
= 1;
5177 case BYTE_MNEM_SUFFIX
:
5178 i
.types
[op
].bitfield
.imm8
= 1;
5179 i
.types
[op
].bitfield
.imm8s
= 1;
5180 i
.types
[op
].bitfield
.imm16
= 1;
5181 i
.types
[op
].bitfield
.imm32
= 1;
5182 i
.types
[op
].bitfield
.imm32s
= 1;
5183 i
.types
[op
].bitfield
.imm64
= 1;
5187 /* If this operand is at most 16 bits, convert it
5188 to a signed 16 bit number before trying to see
5189 whether it will fit in an even smaller size.
5190 This allows a 16-bit operand such as $0xffe0 to
5191 be recognised as within Imm8S range. */
5192 if ((i
.types
[op
].bitfield
.imm16
)
5193 && (i
.op
[op
].imms
->X_add_number
& ~(offsetT
) 0xffff) == 0)
5195 i
.op
[op
].imms
->X_add_number
=
5196 (((i
.op
[op
].imms
->X_add_number
& 0xffff) ^ 0x8000) - 0x8000);
5199 /* Store 32-bit immediate in 64-bit for 64-bit BFD. */
5200 if ((i
.types
[op
].bitfield
.imm32
)
5201 && ((i
.op
[op
].imms
->X_add_number
& ~(((offsetT
) 2 << 31) - 1))
5204 i
.op
[op
].imms
->X_add_number
= ((i
.op
[op
].imms
->X_add_number
5205 ^ ((offsetT
) 1 << 31))
5206 - ((offsetT
) 1 << 31));
5210 = operand_type_or (i
.types
[op
],
5211 smallest_imm_type (i
.op
[op
].imms
->X_add_number
));
5213 /* We must avoid matching of Imm32 templates when 64bit
5214 only immediate is available. */
5215 if (guess_suffix
== QWORD_MNEM_SUFFIX
)
5216 i
.types
[op
].bitfield
.imm32
= 0;
5223 /* Symbols and expressions. */
5225 /* Convert symbolic operand to proper sizes for matching, but don't
5226 prevent matching a set of insns that only supports sizes other
5227 than those matching the insn suffix. */
5229 i386_operand_type mask
, allowed
;
5230 const insn_template
*t
;
5232 operand_type_set (&mask
, 0);
5233 operand_type_set (&allowed
, 0);
5235 for (t
= current_templates
->start
;
5236 t
< current_templates
->end
;
5239 allowed
= operand_type_or (allowed
, t
->operand_types
[op
]);
5240 allowed
= operand_type_and (allowed
, anyimm
);
5242 switch (guess_suffix
)
5244 case QWORD_MNEM_SUFFIX
:
5245 mask
.bitfield
.imm64
= 1;
5246 mask
.bitfield
.imm32s
= 1;
5248 case LONG_MNEM_SUFFIX
:
5249 mask
.bitfield
.imm32
= 1;
5251 case WORD_MNEM_SUFFIX
:
5252 mask
.bitfield
.imm16
= 1;
5254 case BYTE_MNEM_SUFFIX
:
5255 mask
.bitfield
.imm8
= 1;
5260 allowed
= operand_type_and (mask
, allowed
);
5261 if (!operand_type_all_zero (&allowed
))
5262 i
.types
[op
] = operand_type_and (i
.types
[op
], mask
);
5269 /* Try to use the smallest displacement type too. */
5271 optimize_disp (void)
5275 for (op
= i
.operands
; --op
>= 0;)
5276 if (operand_type_check (i
.types
[op
], disp
))
5278 if (i
.op
[op
].disps
->X_op
== O_constant
)
5280 offsetT op_disp
= i
.op
[op
].disps
->X_add_number
;
5282 if (i
.types
[op
].bitfield
.disp16
5283 && (op_disp
& ~(offsetT
) 0xffff) == 0)
5285 /* If this operand is at most 16 bits, convert
5286 to a signed 16 bit number and don't use 64bit
5288 op_disp
= (((op_disp
& 0xffff) ^ 0x8000) - 0x8000);
5289 i
.types
[op
].bitfield
.disp64
= 0;
5292 /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */
5293 if (i
.types
[op
].bitfield
.disp32
5294 && (op_disp
& ~(((offsetT
) 2 << 31) - 1)) == 0)
5296 /* If this operand is at most 32 bits, convert
5297 to a signed 32 bit number and don't use 64bit
5299 op_disp
&= (((offsetT
) 2 << 31) - 1);
5300 op_disp
= (op_disp
^ ((offsetT
) 1 << 31)) - ((addressT
) 1 << 31);
5301 i
.types
[op
].bitfield
.disp64
= 0;
5304 if (!op_disp
&& i
.types
[op
].bitfield
.baseindex
)
5306 i
.types
[op
].bitfield
.disp8
= 0;
5307 i
.types
[op
].bitfield
.disp16
= 0;
5308 i
.types
[op
].bitfield
.disp32
= 0;
5309 i
.types
[op
].bitfield
.disp32s
= 0;
5310 i
.types
[op
].bitfield
.disp64
= 0;
5314 else if (flag_code
== CODE_64BIT
)
5316 if (fits_in_signed_long (op_disp
))
5318 i
.types
[op
].bitfield
.disp64
= 0;
5319 i
.types
[op
].bitfield
.disp32s
= 1;
5321 if (i
.prefix
[ADDR_PREFIX
]
5322 && fits_in_unsigned_long (op_disp
))
5323 i
.types
[op
].bitfield
.disp32
= 1;
5325 if ((i
.types
[op
].bitfield
.disp32
5326 || i
.types
[op
].bitfield
.disp32s
5327 || i
.types
[op
].bitfield
.disp16
)
5328 && fits_in_disp8 (op_disp
))
5329 i
.types
[op
].bitfield
.disp8
= 1;
5331 else if (i
.reloc
[op
] == BFD_RELOC_386_TLS_DESC_CALL
5332 || i
.reloc
[op
] == BFD_RELOC_X86_64_TLSDESC_CALL
)
5334 fix_new_exp (frag_now
, frag_more (0) - frag_now
->fr_literal
, 0,
5335 i
.op
[op
].disps
, 0, i
.reloc
[op
]);
5336 i
.types
[op
].bitfield
.disp8
= 0;
5337 i
.types
[op
].bitfield
.disp16
= 0;
5338 i
.types
[op
].bitfield
.disp32
= 0;
5339 i
.types
[op
].bitfield
.disp32s
= 0;
5340 i
.types
[op
].bitfield
.disp64
= 0;
5343 /* We only support 64bit displacement on constants. */
5344 i
.types
[op
].bitfield
.disp64
= 0;
5348 /* Return 1 if there is a match in broadcast bytes between operand
5349 GIVEN and instruction template T. */
5352 match_broadcast_size (const insn_template
*t
, unsigned int given
)
5354 return ((t
->opcode_modifier
.broadcast
== BYTE_BROADCAST
5355 && i
.types
[given
].bitfield
.byte
)
5356 || (t
->opcode_modifier
.broadcast
== WORD_BROADCAST
5357 && i
.types
[given
].bitfield
.word
)
5358 || (t
->opcode_modifier
.broadcast
== DWORD_BROADCAST
5359 && i
.types
[given
].bitfield
.dword
)
5360 || (t
->opcode_modifier
.broadcast
== QWORD_BROADCAST
5361 && i
.types
[given
].bitfield
.qword
));
5364 /* Check if operands are valid for the instruction. */
5367 check_VecOperands (const insn_template
*t
)
5371 static const i386_cpu_flags avx512
= CPU_ANY_AVX512F_FLAGS
;
5373 /* Templates allowing for ZMMword as well as YMMword and/or XMMword for
5374 any one operand are implicity requiring AVX512VL support if the actual
5375 operand size is YMMword or XMMword. Since this function runs after
5376 template matching, there's no need to check for YMMword/XMMword in
5378 cpu
= cpu_flags_and (t
->cpu_flags
, avx512
);
5379 if (!cpu_flags_all_zero (&cpu
)
5380 && !t
->cpu_flags
.bitfield
.cpuavx512vl
5381 && !cpu_arch_flags
.bitfield
.cpuavx512vl
)
5383 for (op
= 0; op
< t
->operands
; ++op
)
5385 if (t
->operand_types
[op
].bitfield
.zmmword
5386 && (i
.types
[op
].bitfield
.ymmword
5387 || i
.types
[op
].bitfield
.xmmword
))
5389 i
.error
= unsupported
;
5395 /* Without VSIB byte, we can't have a vector register for index. */
5396 if (!t
->opcode_modifier
.vecsib
5398 && (i
.index_reg
->reg_type
.bitfield
.xmmword
5399 || i
.index_reg
->reg_type
.bitfield
.ymmword
5400 || i
.index_reg
->reg_type
.bitfield
.zmmword
))
5402 i
.error
= unsupported_vector_index_register
;
5406 /* Check if default mask is allowed. */
5407 if (t
->opcode_modifier
.nodefmask
5408 && (!i
.mask
|| i
.mask
->mask
->reg_num
== 0))
5410 i
.error
= no_default_mask
;
5414 /* For VSIB byte, we need a vector register for index, and all vector
5415 registers must be distinct. */
5416 if (t
->opcode_modifier
.vecsib
)
5419 || !((t
->opcode_modifier
.vecsib
== VecSIB128
5420 && i
.index_reg
->reg_type
.bitfield
.xmmword
)
5421 || (t
->opcode_modifier
.vecsib
== VecSIB256
5422 && i
.index_reg
->reg_type
.bitfield
.ymmword
)
5423 || (t
->opcode_modifier
.vecsib
== VecSIB512
5424 && i
.index_reg
->reg_type
.bitfield
.zmmword
)))
5426 i
.error
= invalid_vsib_address
;
5430 gas_assert (i
.reg_operands
== 2 || i
.mask
);
5431 if (i
.reg_operands
== 2 && !i
.mask
)
5433 gas_assert (i
.types
[0].bitfield
.class == RegSIMD
);
5434 gas_assert (i
.types
[0].bitfield
.xmmword
5435 || i
.types
[0].bitfield
.ymmword
);
5436 gas_assert (i
.types
[2].bitfield
.class == RegSIMD
);
5437 gas_assert (i
.types
[2].bitfield
.xmmword
5438 || i
.types
[2].bitfield
.ymmword
);
5439 if (operand_check
== check_none
)
5441 if (register_number (i
.op
[0].regs
)
5442 != register_number (i
.index_reg
)
5443 && register_number (i
.op
[2].regs
)
5444 != register_number (i
.index_reg
)
5445 && register_number (i
.op
[0].regs
)
5446 != register_number (i
.op
[2].regs
))
5448 if (operand_check
== check_error
)
5450 i
.error
= invalid_vector_register_set
;
5453 as_warn (_("mask, index, and destination registers should be distinct"));
5455 else if (i
.reg_operands
== 1 && i
.mask
)
5457 if (i
.types
[1].bitfield
.class == RegSIMD
5458 && (i
.types
[1].bitfield
.xmmword
5459 || i
.types
[1].bitfield
.ymmword
5460 || i
.types
[1].bitfield
.zmmword
)
5461 && (register_number (i
.op
[1].regs
)
5462 == register_number (i
.index_reg
)))
5464 if (operand_check
== check_error
)
5466 i
.error
= invalid_vector_register_set
;
5469 if (operand_check
!= check_none
)
5470 as_warn (_("index and destination registers should be distinct"));
5475 /* Check if broadcast is supported by the instruction and is applied
5476 to the memory operand. */
5479 i386_operand_type type
, overlap
;
5481 /* Check if specified broadcast is supported in this instruction,
5482 and its broadcast bytes match the memory operand. */
5483 op
= i
.broadcast
->operand
;
5484 if (!t
->opcode_modifier
.broadcast
5485 || !(i
.flags
[op
] & Operand_Mem
)
5486 || (!i
.types
[op
].bitfield
.unspecified
5487 && !match_broadcast_size (t
, op
)))
5490 i
.error
= unsupported_broadcast
;
5494 i
.broadcast
->bytes
= ((1 << (t
->opcode_modifier
.broadcast
- 1))
5495 * i
.broadcast
->type
);
5496 operand_type_set (&type
, 0);
5497 switch (i
.broadcast
->bytes
)
5500 type
.bitfield
.word
= 1;
5503 type
.bitfield
.dword
= 1;
5506 type
.bitfield
.qword
= 1;
5509 type
.bitfield
.xmmword
= 1;
5512 type
.bitfield
.ymmword
= 1;
5515 type
.bitfield
.zmmword
= 1;
5521 overlap
= operand_type_and (type
, t
->operand_types
[op
]);
5522 if (operand_type_all_zero (&overlap
))
5525 if (t
->opcode_modifier
.checkregsize
)
5529 type
.bitfield
.baseindex
= 1;
5530 for (j
= 0; j
< i
.operands
; ++j
)
5533 && !operand_type_register_match(i
.types
[j
],
5534 t
->operand_types
[j
],
5536 t
->operand_types
[op
]))
5541 /* If broadcast is supported in this instruction, we need to check if
5542 operand of one-element size isn't specified without broadcast. */
5543 else if (t
->opcode_modifier
.broadcast
&& i
.mem_operands
)
5545 /* Find memory operand. */
5546 for (op
= 0; op
< i
.operands
; op
++)
5547 if (i
.flags
[op
] & Operand_Mem
)
5549 gas_assert (op
< i
.operands
);
5550 /* Check size of the memory operand. */
5551 if (match_broadcast_size (t
, op
))
5553 i
.error
= broadcast_needed
;
5558 op
= MAX_OPERANDS
- 1; /* Avoid uninitialized variable warning. */
5560 /* Check if requested masking is supported. */
5563 switch (t
->opcode_modifier
.masking
)
5567 case MERGING_MASKING
:
5568 if (i
.mask
->zeroing
)
5571 i
.error
= unsupported_masking
;
5575 case DYNAMIC_MASKING
:
5576 /* Memory destinations allow only merging masking. */
5577 if (i
.mask
->zeroing
&& i
.mem_operands
)
5579 /* Find memory operand. */
5580 for (op
= 0; op
< i
.operands
; op
++)
5581 if (i
.flags
[op
] & Operand_Mem
)
5583 gas_assert (op
< i
.operands
);
5584 if (op
== i
.operands
- 1)
5586 i
.error
= unsupported_masking
;
5596 /* Check if masking is applied to dest operand. */
5597 if (i
.mask
&& (i
.mask
->operand
!= (int) (i
.operands
- 1)))
5599 i
.error
= mask_not_on_destination
;
5606 if (!t
->opcode_modifier
.sae
5607 || (i
.rounding
->type
!= saeonly
&& !t
->opcode_modifier
.staticrounding
))
5609 i
.error
= unsupported_rc_sae
;
5612 /* If the instruction has several immediate operands and one of
5613 them is rounding, the rounding operand should be the last
5614 immediate operand. */
5615 if (i
.imm_operands
> 1
5616 && i
.rounding
->operand
!= (int) (i
.imm_operands
- 1))
5618 i
.error
= rc_sae_operand_not_last_imm
;
5623 /* Check vector Disp8 operand. */
5624 if (t
->opcode_modifier
.disp8memshift
5625 && i
.disp_encoding
!= disp_encoding_32bit
)
5628 i
.memshift
= t
->opcode_modifier
.broadcast
- 1;
5629 else if (t
->opcode_modifier
.disp8memshift
!= DISP8_SHIFT_VL
)
5630 i
.memshift
= t
->opcode_modifier
.disp8memshift
;
5633 const i386_operand_type
*type
= NULL
;
5636 for (op
= 0; op
< i
.operands
; op
++)
5637 if (i
.flags
[op
] & Operand_Mem
)
5639 if (t
->opcode_modifier
.evex
== EVEXLIG
)
5640 i
.memshift
= 2 + (i
.suffix
== QWORD_MNEM_SUFFIX
);
5641 else if (t
->operand_types
[op
].bitfield
.xmmword
5642 + t
->operand_types
[op
].bitfield
.ymmword
5643 + t
->operand_types
[op
].bitfield
.zmmword
<= 1)
5644 type
= &t
->operand_types
[op
];
5645 else if (!i
.types
[op
].bitfield
.unspecified
)
5646 type
= &i
.types
[op
];
5648 else if (i
.types
[op
].bitfield
.class == RegSIMD
5649 && t
->opcode_modifier
.evex
!= EVEXLIG
)
5651 if (i
.types
[op
].bitfield
.zmmword
)
5653 else if (i
.types
[op
].bitfield
.ymmword
&& i
.memshift
< 5)
5655 else if (i
.types
[op
].bitfield
.xmmword
&& i
.memshift
< 4)
5661 if (type
->bitfield
.zmmword
)
5663 else if (type
->bitfield
.ymmword
)
5665 else if (type
->bitfield
.xmmword
)
5669 /* For the check in fits_in_disp8(). */
5670 if (i
.memshift
== 0)
5674 for (op
= 0; op
< i
.operands
; op
++)
5675 if (operand_type_check (i
.types
[op
], disp
)
5676 && i
.op
[op
].disps
->X_op
== O_constant
)
5678 if (fits_in_disp8 (i
.op
[op
].disps
->X_add_number
))
5680 i
.types
[op
].bitfield
.disp8
= 1;
5683 i
.types
[op
].bitfield
.disp8
= 0;
5692 /* Check if operands are valid for the instruction. Update VEX
5696 VEX_check_operands (const insn_template
*t
)
5698 if (i
.vec_encoding
== vex_encoding_evex
)
5700 /* This instruction must be encoded with EVEX prefix. */
5701 if (!is_evex_encoding (t
))
5703 i
.error
= unsupported
;
5709 if (!t
->opcode_modifier
.vex
)
5711 /* This instruction template doesn't have VEX prefix. */
5712 if (i
.vec_encoding
!= vex_encoding_default
)
5714 i
.error
= unsupported
;
5720 /* Check the special Imm4 cases; must be the first operand. */
5721 if (t
->cpu_flags
.bitfield
.cpuxop
&& t
->operands
== 5)
5723 if (i
.op
[0].imms
->X_op
!= O_constant
5724 || !fits_in_imm4 (i
.op
[0].imms
->X_add_number
))
5730 /* Turn off Imm<N> so that update_imm won't complain. */
5731 operand_type_set (&i
.types
[0], 0);
5737 static const insn_template
*
5738 match_template (char mnem_suffix
)
5740 /* Points to template once we've found it. */
5741 const insn_template
*t
;
5742 i386_operand_type overlap0
, overlap1
, overlap2
, overlap3
;
5743 i386_operand_type overlap4
;
5744 unsigned int found_reverse_match
;
5745 i386_opcode_modifier suffix_check
;
5746 i386_operand_type operand_types
[MAX_OPERANDS
];
5747 int addr_prefix_disp
;
5748 unsigned int j
, size_match
, check_register
;
5749 enum i386_error specific_error
= 0;
5751 #if MAX_OPERANDS != 5
5752 # error "MAX_OPERANDS must be 5."
5755 found_reverse_match
= 0;
5756 addr_prefix_disp
= -1;
5758 /* Prepare for mnemonic suffix check. */
5759 memset (&suffix_check
, 0, sizeof (suffix_check
));
5760 switch (mnem_suffix
)
5762 case BYTE_MNEM_SUFFIX
:
5763 suffix_check
.no_bsuf
= 1;
5765 case WORD_MNEM_SUFFIX
:
5766 suffix_check
.no_wsuf
= 1;
5768 case SHORT_MNEM_SUFFIX
:
5769 suffix_check
.no_ssuf
= 1;
5771 case LONG_MNEM_SUFFIX
:
5772 suffix_check
.no_lsuf
= 1;
5774 case QWORD_MNEM_SUFFIX
:
5775 suffix_check
.no_qsuf
= 1;
5778 /* NB: In Intel syntax, normally we can check for memory operand
5779 size when there is no mnemonic suffix. But jmp and call have
5780 2 different encodings with Dword memory operand size, one with
5781 No_ldSuf and the other without. i.suffix is set to
5782 LONG_DOUBLE_MNEM_SUFFIX to skip the one with No_ldSuf. */
5783 if (i
.suffix
== LONG_DOUBLE_MNEM_SUFFIX
)
5784 suffix_check
.no_ldsuf
= 1;
5787 /* Must have right number of operands. */
5788 i
.error
= number_of_operands_mismatch
;
5790 for (t
= current_templates
->start
; t
< current_templates
->end
; t
++)
5792 addr_prefix_disp
= -1;
5793 found_reverse_match
= 0;
5795 if (i
.operands
!= t
->operands
)
5798 /* Check processor support. */
5799 i
.error
= unsupported
;
5800 if (cpu_flags_match (t
) != CPU_FLAGS_PERFECT_MATCH
)
5803 /* Check AT&T mnemonic. */
5804 i
.error
= unsupported_with_intel_mnemonic
;
5805 if (intel_mnemonic
&& t
->opcode_modifier
.attmnemonic
)
5808 /* Check AT&T/Intel syntax and Intel64/AMD64 ISA. */
5809 i
.error
= unsupported_syntax
;
5810 if ((intel_syntax
&& t
->opcode_modifier
.attsyntax
)
5811 || (!intel_syntax
&& t
->opcode_modifier
.intelsyntax
)
5812 || (intel64
&& t
->opcode_modifier
.amd64
)
5813 || (!intel64
&& t
->opcode_modifier
.intel64
))
5816 /* Check the suffix. */
5817 i
.error
= invalid_instruction_suffix
;
5818 if ((t
->opcode_modifier
.no_bsuf
&& suffix_check
.no_bsuf
)
5819 || (t
->opcode_modifier
.no_wsuf
&& suffix_check
.no_wsuf
)
5820 || (t
->opcode_modifier
.no_lsuf
&& suffix_check
.no_lsuf
)
5821 || (t
->opcode_modifier
.no_ssuf
&& suffix_check
.no_ssuf
)
5822 || (t
->opcode_modifier
.no_qsuf
&& suffix_check
.no_qsuf
)
5823 || (t
->opcode_modifier
.no_ldsuf
&& suffix_check
.no_ldsuf
))
5826 size_match
= operand_size_match (t
);
5830 /* This is intentionally not
5832 if (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE))
5834 as the case of a missing * on the operand is accepted (perhaps with
5835 a warning, issued further down). */
5836 if (i
.jumpabsolute
&& t
->opcode_modifier
.jump
!= JUMP_ABSOLUTE
)
5838 i
.error
= operand_type_mismatch
;
5842 for (j
= 0; j
< MAX_OPERANDS
; j
++)
5843 operand_types
[j
] = t
->operand_types
[j
];
5845 /* In general, don't allow 64-bit operands in 32-bit mode. */
5846 if (i
.suffix
== QWORD_MNEM_SUFFIX
5847 && flag_code
!= CODE_64BIT
5849 ? (!t
->opcode_modifier
.ignoresize
5850 && !t
->opcode_modifier
.broadcast
5851 && !intel_float_operand (t
->name
))
5852 : intel_float_operand (t
->name
) != 2)
5853 && ((operand_types
[0].bitfield
.class != RegMMX
5854 && operand_types
[0].bitfield
.class != RegSIMD
)
5855 || (operand_types
[t
->operands
> 1].bitfield
.class != RegMMX
5856 && operand_types
[t
->operands
> 1].bitfield
.class != RegSIMD
))
5857 && (t
->base_opcode
!= 0x0fc7
5858 || t
->extension_opcode
!= 1 /* cmpxchg8b */))
5861 /* In general, don't allow 32-bit operands on pre-386. */
5862 else if (i
.suffix
== LONG_MNEM_SUFFIX
5863 && !cpu_arch_flags
.bitfield
.cpui386
5865 ? (!t
->opcode_modifier
.ignoresize
5866 && !intel_float_operand (t
->name
))
5867 : intel_float_operand (t
->name
) != 2)
5868 && ((operand_types
[0].bitfield
.class != RegMMX
5869 && operand_types
[0].bitfield
.class != RegSIMD
)
5870 || (operand_types
[t
->operands
> 1].bitfield
.class != RegMMX
5871 && operand_types
[t
->operands
> 1].bitfield
.class
5875 /* Do not verify operands when there are none. */
5879 /* We've found a match; break out of loop. */
5883 if (!t
->opcode_modifier
.jump
5884 || t
->opcode_modifier
.jump
== JUMP_ABSOLUTE
)
5886 /* There should be only one Disp operand. */
5887 for (j
= 0; j
< MAX_OPERANDS
; j
++)
5888 if (operand_type_check (operand_types
[j
], disp
))
5890 if (j
< MAX_OPERANDS
)
5892 bfd_boolean override
= (i
.prefix
[ADDR_PREFIX
] != 0);
5894 addr_prefix_disp
= j
;
5896 /* Address size prefix will turn Disp64/Disp32S/Disp32/Disp16
5897 operand into Disp32/Disp32/Disp16/Disp32 operand. */
5901 override
= !override
;
5904 if (operand_types
[j
].bitfield
.disp32
5905 && operand_types
[j
].bitfield
.disp16
)
5907 operand_types
[j
].bitfield
.disp16
= override
;
5908 operand_types
[j
].bitfield
.disp32
= !override
;
5910 operand_types
[j
].bitfield
.disp32s
= 0;
5911 operand_types
[j
].bitfield
.disp64
= 0;
5915 if (operand_types
[j
].bitfield
.disp32s
5916 || operand_types
[j
].bitfield
.disp64
)
5918 operand_types
[j
].bitfield
.disp64
&= !override
;
5919 operand_types
[j
].bitfield
.disp32s
&= !override
;
5920 operand_types
[j
].bitfield
.disp32
= override
;
5922 operand_types
[j
].bitfield
.disp16
= 0;
5928 /* Force 0x8b encoding for "mov foo@GOT, %eax". */
5929 if (i
.reloc
[0] == BFD_RELOC_386_GOT32
&& t
->base_opcode
== 0xa0)
5932 /* We check register size if needed. */
5933 if (t
->opcode_modifier
.checkregsize
)
5935 check_register
= (1 << t
->operands
) - 1;
5937 check_register
&= ~(1 << i
.broadcast
->operand
);
5942 overlap0
= operand_type_and (i
.types
[0], operand_types
[0]);
5943 switch (t
->operands
)
5946 if (!operand_type_match (overlap0
, i
.types
[0]))
5950 /* xchg %eax, %eax is a special case. It is an alias for nop
5951 only in 32bit mode and we can use opcode 0x90. In 64bit
5952 mode, we can't use 0x90 for xchg %eax, %eax since it should
5953 zero-extend %eax to %rax. */
5954 if (flag_code
== CODE_64BIT
5955 && t
->base_opcode
== 0x90
5956 && i
.types
[0].bitfield
.instance
== Accum
5957 && i
.types
[0].bitfield
.dword
5958 && i
.types
[1].bitfield
.instance
== Accum
5959 && i
.types
[1].bitfield
.dword
)
5961 /* xrelease mov %eax, <disp> is another special case. It must not
5962 match the accumulator-only encoding of mov. */
5963 if (flag_code
!= CODE_64BIT
5965 && t
->base_opcode
== 0xa0
5966 && i
.types
[0].bitfield
.instance
== Accum
5967 && (i
.flags
[1] & Operand_Mem
))
5972 if (!(size_match
& MATCH_STRAIGHT
))
5974 /* Reverse direction of operands if swapping is possible in the first
5975 place (operands need to be symmetric) and
5976 - the load form is requested, and the template is a store form,
5977 - the store form is requested, and the template is a load form,
5978 - the non-default (swapped) form is requested. */
5979 overlap1
= operand_type_and (operand_types
[0], operand_types
[1]);
5980 if (t
->opcode_modifier
.d
&& i
.reg_operands
== i
.operands
5981 && !operand_type_all_zero (&overlap1
))
5982 switch (i
.dir_encoding
)
5984 case dir_encoding_load
:
5985 if (operand_type_check (operand_types
[i
.operands
- 1], anymem
)
5986 || t
->opcode_modifier
.regmem
)
5990 case dir_encoding_store
:
5991 if (!operand_type_check (operand_types
[i
.operands
- 1], anymem
)
5992 && !t
->opcode_modifier
.regmem
)
5996 case dir_encoding_swap
:
5999 case dir_encoding_default
:
6002 /* If we want store form, we skip the current load. */
6003 if ((i
.dir_encoding
== dir_encoding_store
6004 || i
.dir_encoding
== dir_encoding_swap
)
6005 && i
.mem_operands
== 0
6006 && t
->opcode_modifier
.load
)
6011 overlap1
= operand_type_and (i
.types
[1], operand_types
[1]);
6012 if (!operand_type_match (overlap0
, i
.types
[0])
6013 || !operand_type_match (overlap1
, i
.types
[1])
6014 || ((check_register
& 3) == 3
6015 && !operand_type_register_match (i
.types
[0],
6020 /* Check if other direction is valid ... */
6021 if (!t
->opcode_modifier
.d
)
6025 if (!(size_match
& MATCH_REVERSE
))
6027 /* Try reversing direction of operands. */
6028 overlap0
= operand_type_and (i
.types
[0], operand_types
[i
.operands
- 1]);
6029 overlap1
= operand_type_and (i
.types
[i
.operands
- 1], operand_types
[0]);
6030 if (!operand_type_match (overlap0
, i
.types
[0])
6031 || !operand_type_match (overlap1
, i
.types
[i
.operands
- 1])
6033 && !operand_type_register_match (i
.types
[0],
6034 operand_types
[i
.operands
- 1],
6035 i
.types
[i
.operands
- 1],
6038 /* Does not match either direction. */
6041 /* found_reverse_match holds which of D or FloatR
6043 if (!t
->opcode_modifier
.d
)
6044 found_reverse_match
= 0;
6045 else if (operand_types
[0].bitfield
.tbyte
)
6046 found_reverse_match
= Opcode_FloatD
;
6047 else if (operand_types
[0].bitfield
.xmmword
6048 || operand_types
[i
.operands
- 1].bitfield
.xmmword
6049 || operand_types
[0].bitfield
.class == RegMMX
6050 || operand_types
[i
.operands
- 1].bitfield
.class == RegMMX
6051 || is_any_vex_encoding(t
))
6052 found_reverse_match
= (t
->base_opcode
& 0xee) != 0x6e
6053 ? Opcode_SIMD_FloatD
: Opcode_SIMD_IntD
;
6055 found_reverse_match
= Opcode_D
;
6056 if (t
->opcode_modifier
.floatr
)
6057 found_reverse_match
|= Opcode_FloatR
;
6061 /* Found a forward 2 operand match here. */
6062 switch (t
->operands
)
6065 overlap4
= operand_type_and (i
.types
[4],
6069 overlap3
= operand_type_and (i
.types
[3],
6073 overlap2
= operand_type_and (i
.types
[2],
6078 switch (t
->operands
)
6081 if (!operand_type_match (overlap4
, i
.types
[4])
6082 || !operand_type_register_match (i
.types
[3],
6089 if (!operand_type_match (overlap3
, i
.types
[3])
6090 || ((check_register
& 0xa) == 0xa
6091 && !operand_type_register_match (i
.types
[1],
6095 || ((check_register
& 0xc) == 0xc
6096 && !operand_type_register_match (i
.types
[2],
6103 /* Here we make use of the fact that there are no
6104 reverse match 3 operand instructions. */
6105 if (!operand_type_match (overlap2
, i
.types
[2])
6106 || ((check_register
& 5) == 5
6107 && !operand_type_register_match (i
.types
[0],
6111 || ((check_register
& 6) == 6
6112 && !operand_type_register_match (i
.types
[1],
6120 /* Found either forward/reverse 2, 3 or 4 operand match here:
6121 slip through to break. */
6124 /* Check if vector and VEX operands are valid. */
6125 if (check_VecOperands (t
) || VEX_check_operands (t
))
6127 specific_error
= i
.error
;
6131 /* We've found a match; break out of loop. */
6135 if (t
== current_templates
->end
)
6137 /* We found no match. */
6138 const char *err_msg
;
6139 switch (specific_error
? specific_error
: i
.error
)
6143 case operand_size_mismatch
:
6144 err_msg
= _("operand size mismatch");
6146 case operand_type_mismatch
:
6147 err_msg
= _("operand type mismatch");
6149 case register_type_mismatch
:
6150 err_msg
= _("register type mismatch");
6152 case number_of_operands_mismatch
:
6153 err_msg
= _("number of operands mismatch");
6155 case invalid_instruction_suffix
:
6156 err_msg
= _("invalid instruction suffix");
6159 err_msg
= _("constant doesn't fit in 4 bits");
6161 case unsupported_with_intel_mnemonic
:
6162 err_msg
= _("unsupported with Intel mnemonic");
6164 case unsupported_syntax
:
6165 err_msg
= _("unsupported syntax");
6168 as_bad (_("unsupported instruction `%s'"),
6169 current_templates
->start
->name
);
6171 case invalid_vsib_address
:
6172 err_msg
= _("invalid VSIB address");
6174 case invalid_vector_register_set
:
6175 err_msg
= _("mask, index, and destination registers must be distinct");
6177 case unsupported_vector_index_register
:
6178 err_msg
= _("unsupported vector index register");
6180 case unsupported_broadcast
:
6181 err_msg
= _("unsupported broadcast");
6183 case broadcast_needed
:
6184 err_msg
= _("broadcast is needed for operand of such type");
6186 case unsupported_masking
:
6187 err_msg
= _("unsupported masking");
6189 case mask_not_on_destination
:
6190 err_msg
= _("mask not on destination operand");
6192 case no_default_mask
:
6193 err_msg
= _("default mask isn't allowed");
6195 case unsupported_rc_sae
:
6196 err_msg
= _("unsupported static rounding/sae");
6198 case rc_sae_operand_not_last_imm
:
6200 err_msg
= _("RC/SAE operand must precede immediate operands");
6202 err_msg
= _("RC/SAE operand must follow immediate operands");
6204 case invalid_register_operand
:
6205 err_msg
= _("invalid register operand");
6208 as_bad (_("%s for `%s'"), err_msg
,
6209 current_templates
->start
->name
);
6213 if (!quiet_warnings
)
6216 && (i
.jumpabsolute
!= (t
->opcode_modifier
.jump
== JUMP_ABSOLUTE
)))
6217 as_warn (_("indirect %s without `*'"), t
->name
);
6219 if (t
->opcode_modifier
.isprefix
6220 && t
->opcode_modifier
.ignoresize
)
6222 /* Warn them that a data or address size prefix doesn't
6223 affect assembly of the next line of code. */
6224 as_warn (_("stand-alone `%s' prefix"), t
->name
);
6228 /* Copy the template we found. */
6231 if (addr_prefix_disp
!= -1)
6232 i
.tm
.operand_types
[addr_prefix_disp
]
6233 = operand_types
[addr_prefix_disp
];
6235 if (found_reverse_match
)
6237 /* If we found a reverse match we must alter the opcode direction
6238 bit and clear/flip the regmem modifier one. found_reverse_match
6239 holds bits to change (different for int & float insns). */
6241 i
.tm
.base_opcode
^= found_reverse_match
;
6243 i
.tm
.operand_types
[0] = operand_types
[i
.operands
- 1];
6244 i
.tm
.operand_types
[i
.operands
- 1] = operand_types
[0];
6246 /* Certain SIMD insns have their load forms specified in the opcode
6247 table, and hence we need to _set_ RegMem instead of clearing it.
6248 We need to avoid setting the bit though on insns like KMOVW. */
6249 i
.tm
.opcode_modifier
.regmem
6250 = i
.tm
.opcode_modifier
.modrm
&& i
.tm
.opcode_modifier
.d
6251 && i
.tm
.operands
> 2U - i
.tm
.opcode_modifier
.sse2avx
6252 && !i
.tm
.opcode_modifier
.regmem
;
6261 unsigned int es_op
= i
.tm
.opcode_modifier
.isstring
- IS_STRING_ES_OP0
;
6262 unsigned int op
= i
.tm
.operand_types
[0].bitfield
.baseindex
? es_op
: 0;
6264 if (i
.seg
[op
] != NULL
&& i
.seg
[op
] != &es
)
6266 as_bad (_("`%s' operand %u must use `%ses' segment"),
6268 intel_syntax
? i
.tm
.operands
- es_op
: es_op
+ 1,
6273 /* There's only ever one segment override allowed per instruction.
6274 This instruction possibly has a legal segment override on the
6275 second operand, so copy the segment to where non-string
6276 instructions store it, allowing common code. */
6277 i
.seg
[op
] = i
.seg
[1];
6283 process_suffix (void)
6285 /* If matched instruction specifies an explicit instruction mnemonic
6287 if (i
.tm
.opcode_modifier
.size
== SIZE16
)
6288 i
.suffix
= WORD_MNEM_SUFFIX
;
6289 else if (i
.tm
.opcode_modifier
.size
== SIZE32
)
6290 i
.suffix
= LONG_MNEM_SUFFIX
;
6291 else if (i
.tm
.opcode_modifier
.size
== SIZE64
)
6292 i
.suffix
= QWORD_MNEM_SUFFIX
;
6293 else if (i
.reg_operands
6294 && (i
.operands
> 1 || i
.types
[0].bitfield
.class == Reg
))
6296 /* If there's no instruction mnemonic suffix we try to invent one
6297 based on GPR operands. */
6300 /* We take i.suffix from the last register operand specified,
6301 Destination register type is more significant than source
6302 register type. crc32 in SSE4.2 prefers source register
6304 unsigned int op
= i
.tm
.base_opcode
!= 0xf20f38f0 ? i
.operands
: 1;
6307 if (i
.tm
.operand_types
[op
].bitfield
.instance
== InstanceNone
6308 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6310 if (i
.types
[op
].bitfield
.class != Reg
)
6312 if (i
.types
[op
].bitfield
.byte
)
6313 i
.suffix
= BYTE_MNEM_SUFFIX
;
6314 else if (i
.types
[op
].bitfield
.word
)
6315 i
.suffix
= WORD_MNEM_SUFFIX
;
6316 else if (i
.types
[op
].bitfield
.dword
)
6317 i
.suffix
= LONG_MNEM_SUFFIX
;
6318 else if (i
.types
[op
].bitfield
.qword
)
6319 i
.suffix
= QWORD_MNEM_SUFFIX
;
6325 else if (i
.suffix
== BYTE_MNEM_SUFFIX
)
6328 && i
.tm
.opcode_modifier
.ignoresize
6329 && i
.tm
.opcode_modifier
.no_bsuf
)
6331 else if (!check_byte_reg ())
6334 else if (i
.suffix
== LONG_MNEM_SUFFIX
)
6337 && i
.tm
.opcode_modifier
.ignoresize
6338 && i
.tm
.opcode_modifier
.no_lsuf
6339 && !i
.tm
.opcode_modifier
.todword
6340 && !i
.tm
.opcode_modifier
.toqword
)
6342 else if (!check_long_reg ())
6345 else if (i
.suffix
== QWORD_MNEM_SUFFIX
)
6348 && i
.tm
.opcode_modifier
.ignoresize
6349 && i
.tm
.opcode_modifier
.no_qsuf
6350 && !i
.tm
.opcode_modifier
.todword
6351 && !i
.tm
.opcode_modifier
.toqword
)
6353 else if (!check_qword_reg ())
6356 else if (i
.suffix
== WORD_MNEM_SUFFIX
)
6359 && i
.tm
.opcode_modifier
.ignoresize
6360 && i
.tm
.opcode_modifier
.no_wsuf
)
6362 else if (!check_word_reg ())
6365 else if (intel_syntax
&& i
.tm
.opcode_modifier
.ignoresize
)
6366 /* Do nothing if the instruction is going to ignore the prefix. */
6371 else if (i
.tm
.opcode_modifier
.defaultsize
6373 /* exclude fldenv/frstor/fsave/fstenv */
6374 && i
.tm
.opcode_modifier
.no_ssuf
)
6376 i
.suffix
= stackop_size
;
6377 if (stackop_size
== LONG_MNEM_SUFFIX
)
6379 /* stackop_size is set to LONG_MNEM_SUFFIX for the
6380 .code16gcc directive to support 16-bit mode with
6381 32-bit address. For IRET without a suffix, generate
6382 16-bit IRET (opcode 0xcf) to return from an interrupt
6384 if (i
.tm
.base_opcode
== 0xcf)
6386 i
.suffix
= WORD_MNEM_SUFFIX
;
6387 as_warn (_("generating 16-bit `iret' for .code16gcc directive"));
6389 /* Warn about changed behavior for segment register push/pop. */
6390 else if ((i
.tm
.base_opcode
| 1) == 0x07)
6391 as_warn (_("generating 32-bit `%s', unlike earlier gas versions"),
6396 && (i
.tm
.opcode_modifier
.jump
== JUMP_ABSOLUTE
6397 || i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
6398 || i
.tm
.opcode_modifier
.jump
== JUMP_INTERSEGMENT
6399 || (i
.tm
.base_opcode
== 0x0f01 /* [ls][gi]dt */
6400 && i
.tm
.extension_opcode
<= 3)))
6405 if (!i
.tm
.opcode_modifier
.no_qsuf
)
6407 i
.suffix
= QWORD_MNEM_SUFFIX
;
6412 if (!i
.tm
.opcode_modifier
.no_lsuf
)
6413 i
.suffix
= LONG_MNEM_SUFFIX
;
6416 if (!i
.tm
.opcode_modifier
.no_wsuf
)
6417 i
.suffix
= WORD_MNEM_SUFFIX
;
6423 && !i
.tm
.opcode_modifier
.defaultsize
6424 && !i
.tm
.opcode_modifier
.ignoresize
)
6426 unsigned int suffixes
;
6428 suffixes
= !i
.tm
.opcode_modifier
.no_bsuf
;
6429 if (!i
.tm
.opcode_modifier
.no_wsuf
)
6431 if (!i
.tm
.opcode_modifier
.no_lsuf
)
6433 if (!i
.tm
.opcode_modifier
.no_ldsuf
)
6435 if (!i
.tm
.opcode_modifier
.no_ssuf
)
6437 if (flag_code
== CODE_64BIT
&& !i
.tm
.opcode_modifier
.no_qsuf
)
6440 /* Are multiple suffixes allowed? */
6441 if (suffixes
& (suffixes
- 1))
6445 as_bad (_("ambiguous operand size for `%s'"), i
.tm
.name
);
6448 if (operand_check
== check_error
)
6450 as_bad (_("no instruction mnemonic suffix given and "
6451 "no register operands; can't size `%s'"), i
.tm
.name
);
6454 if (operand_check
== check_warning
)
6455 as_warn (_("no instruction mnemonic suffix given and "
6456 "no register operands; using default for `%s'"),
6459 if (i
.tm
.opcode_modifier
.floatmf
)
6460 i
.suffix
= SHORT_MNEM_SUFFIX
;
6461 else if (flag_code
== CODE_16BIT
)
6462 i
.suffix
= WORD_MNEM_SUFFIX
;
6463 else if (!i
.tm
.opcode_modifier
.no_lsuf
)
6464 i
.suffix
= LONG_MNEM_SUFFIX
;
6466 i
.suffix
= QWORD_MNEM_SUFFIX
;
6470 /* Change the opcode based on the operand size given by i.suffix. */
6473 /* Size floating point instruction. */
6474 case LONG_MNEM_SUFFIX
:
6475 if (i
.tm
.opcode_modifier
.floatmf
)
6477 i
.tm
.base_opcode
^= 4;
6481 case WORD_MNEM_SUFFIX
:
6482 case QWORD_MNEM_SUFFIX
:
6483 /* It's not a byte, select word/dword operation. */
6484 if (i
.tm
.opcode_modifier
.w
)
6486 if (i
.tm
.opcode_modifier
.shortform
)
6487 i
.tm
.base_opcode
|= 8;
6489 i
.tm
.base_opcode
|= 1;
6492 case SHORT_MNEM_SUFFIX
:
6493 /* Now select between word & dword operations via the operand
6494 size prefix, except for instructions that will ignore this
6496 if (i
.reg_operands
> 0
6497 && i
.types
[0].bitfield
.class == Reg
6498 && i
.tm
.opcode_modifier
.addrprefixopreg
6499 && (i
.tm
.operand_types
[0].bitfield
.instance
== Accum
6500 || i
.operands
== 1))
6502 /* The address size override prefix changes the size of the
6504 if ((flag_code
== CODE_32BIT
6505 && i
.op
[0].regs
->reg_type
.bitfield
.word
)
6506 || (flag_code
!= CODE_32BIT
6507 && i
.op
[0].regs
->reg_type
.bitfield
.dword
))
6508 if (!add_prefix (ADDR_PREFIX_OPCODE
))
6511 else if (i
.suffix
!= QWORD_MNEM_SUFFIX
6512 && !i
.tm
.opcode_modifier
.ignoresize
6513 && !i
.tm
.opcode_modifier
.floatmf
6514 && !is_any_vex_encoding (&i
.tm
)
6515 && ((i
.suffix
== LONG_MNEM_SUFFIX
) == (flag_code
== CODE_16BIT
)
6516 || (flag_code
== CODE_64BIT
6517 && i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
)))
6519 unsigned int prefix
= DATA_PREFIX_OPCODE
;
6521 if (i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
) /* jcxz, loop */
6522 prefix
= ADDR_PREFIX_OPCODE
;
6524 if (!add_prefix (prefix
))
6528 /* Set mode64 for an operand. */
6529 if (i
.suffix
== QWORD_MNEM_SUFFIX
6530 && flag_code
== CODE_64BIT
6531 && !i
.tm
.opcode_modifier
.norex64
6532 /* Special case for xchg %rax,%rax. It is NOP and doesn't
6534 && ! (i
.operands
== 2
6535 && i
.tm
.base_opcode
== 0x90
6536 && i
.tm
.extension_opcode
== None
6537 && i
.types
[0].bitfield
.instance
== Accum
6538 && i
.types
[0].bitfield
.qword
6539 && i
.types
[1].bitfield
.instance
== Accum
6540 && i
.types
[1].bitfield
.qword
))
6546 if (i
.reg_operands
!= 0
6548 && i
.tm
.opcode_modifier
.addrprefixopreg
6549 && i
.tm
.operand_types
[0].bitfield
.instance
!= Accum
)
6551 /* Check invalid register operand when the address size override
6552 prefix changes the size of register operands. */
6554 enum { need_word
, need_dword
, need_qword
} need
;
6556 if (flag_code
== CODE_32BIT
)
6557 need
= i
.prefix
[ADDR_PREFIX
] ? need_word
: need_dword
;
6560 if (i
.prefix
[ADDR_PREFIX
])
6563 need
= flag_code
== CODE_64BIT
? need_qword
: need_word
;
6566 for (op
= 0; op
< i
.operands
; op
++)
6567 if (i
.types
[op
].bitfield
.class == Reg
6568 && ((need
== need_word
6569 && !i
.op
[op
].regs
->reg_type
.bitfield
.word
)
6570 || (need
== need_dword
6571 && !i
.op
[op
].regs
->reg_type
.bitfield
.dword
)
6572 || (need
== need_qword
6573 && !i
.op
[op
].regs
->reg_type
.bitfield
.qword
)))
6575 as_bad (_("invalid register operand size for `%s'"),
6585 check_byte_reg (void)
6589 for (op
= i
.operands
; --op
>= 0;)
6591 /* Skip non-register operands. */
6592 if (i
.types
[op
].bitfield
.class != Reg
)
6595 /* If this is an eight bit register, it's OK. If it's the 16 or
6596 32 bit version of an eight bit register, we will just use the
6597 low portion, and that's OK too. */
6598 if (i
.types
[op
].bitfield
.byte
)
6601 /* I/O port address operands are OK too. */
6602 if (i
.tm
.operand_types
[op
].bitfield
.instance
== RegD
6603 && i
.tm
.operand_types
[op
].bitfield
.word
)
6606 /* crc32 doesn't generate this warning. */
6607 if (i
.tm
.base_opcode
== 0xf20f38f0)
6610 if ((i
.types
[op
].bitfield
.word
6611 || i
.types
[op
].bitfield
.dword
6612 || i
.types
[op
].bitfield
.qword
)
6613 && i
.op
[op
].regs
->reg_num
< 4
6614 /* Prohibit these changes in 64bit mode, since the lowering
6615 would be more complicated. */
6616 && flag_code
!= CODE_64BIT
)
6618 #if REGISTER_WARNINGS
6619 if (!quiet_warnings
)
6620 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6622 (i
.op
[op
].regs
+ (i
.types
[op
].bitfield
.word
6623 ? REGNAM_AL
- REGNAM_AX
6624 : REGNAM_AL
- REGNAM_EAX
))->reg_name
,
6626 i
.op
[op
].regs
->reg_name
,
6631 /* Any other register is bad. */
6632 if (i
.types
[op
].bitfield
.class == Reg
6633 || i
.types
[op
].bitfield
.class == RegMMX
6634 || i
.types
[op
].bitfield
.class == RegSIMD
6635 || i
.types
[op
].bitfield
.class == SReg
6636 || i
.types
[op
].bitfield
.class == RegCR
6637 || i
.types
[op
].bitfield
.class == RegDR
6638 || i
.types
[op
].bitfield
.class == RegTR
)
6640 as_bad (_("`%s%s' not allowed with `%s%c'"),
6642 i
.op
[op
].regs
->reg_name
,
6652 check_long_reg (void)
6656 for (op
= i
.operands
; --op
>= 0;)
6657 /* Skip non-register operands. */
6658 if (i
.types
[op
].bitfield
.class != Reg
)
6660 /* Reject eight bit registers, except where the template requires
6661 them. (eg. movzb) */
6662 else if (i
.types
[op
].bitfield
.byte
6663 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6664 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6665 && (i
.tm
.operand_types
[op
].bitfield
.word
6666 || i
.tm
.operand_types
[op
].bitfield
.dword
))
6668 as_bad (_("`%s%s' not allowed with `%s%c'"),
6670 i
.op
[op
].regs
->reg_name
,
6675 /* Warn if the e prefix on a general reg is missing. */
6676 else if ((!quiet_warnings
|| flag_code
== CODE_64BIT
)
6677 && i
.types
[op
].bitfield
.word
6678 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6679 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6680 && i
.tm
.operand_types
[op
].bitfield
.dword
)
6682 /* Prohibit these changes in the 64bit mode, since the
6683 lowering is more complicated. */
6684 if (flag_code
== CODE_64BIT
)
6686 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6687 register_prefix
, i
.op
[op
].regs
->reg_name
,
6691 #if REGISTER_WARNINGS
6692 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6694 (i
.op
[op
].regs
+ REGNAM_EAX
- REGNAM_AX
)->reg_name
,
6695 register_prefix
, i
.op
[op
].regs
->reg_name
, i
.suffix
);
6698 /* Warn if the r prefix on a general reg is present. */
6699 else if (i
.types
[op
].bitfield
.qword
6700 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6701 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6702 && i
.tm
.operand_types
[op
].bitfield
.dword
)
6705 && i
.tm
.opcode_modifier
.toqword
6706 && i
.types
[0].bitfield
.class != RegSIMD
)
6708 /* Convert to QWORD. We want REX byte. */
6709 i
.suffix
= QWORD_MNEM_SUFFIX
;
6713 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6714 register_prefix
, i
.op
[op
].regs
->reg_name
,
6723 check_qword_reg (void)
6727 for (op
= i
.operands
; --op
>= 0; )
6728 /* Skip non-register operands. */
6729 if (i
.types
[op
].bitfield
.class != Reg
)
6731 /* Reject eight bit registers, except where the template requires
6732 them. (eg. movzb) */
6733 else if (i
.types
[op
].bitfield
.byte
6734 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6735 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6736 && (i
.tm
.operand_types
[op
].bitfield
.word
6737 || i
.tm
.operand_types
[op
].bitfield
.dword
))
6739 as_bad (_("`%s%s' not allowed with `%s%c'"),
6741 i
.op
[op
].regs
->reg_name
,
6746 /* Warn if the r prefix on a general reg is missing. */
6747 else if ((i
.types
[op
].bitfield
.word
6748 || i
.types
[op
].bitfield
.dword
)
6749 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6750 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6751 && i
.tm
.operand_types
[op
].bitfield
.qword
)
6753 /* Prohibit these changes in the 64bit mode, since the
6754 lowering is more complicated. */
6756 && i
.tm
.opcode_modifier
.todword
6757 && i
.types
[0].bitfield
.class != RegSIMD
)
6759 /* Convert to DWORD. We don't want REX byte. */
6760 i
.suffix
= LONG_MNEM_SUFFIX
;
6764 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6765 register_prefix
, i
.op
[op
].regs
->reg_name
,
6774 check_word_reg (void)
6777 for (op
= i
.operands
; --op
>= 0;)
6778 /* Skip non-register operands. */
6779 if (i
.types
[op
].bitfield
.class != Reg
)
6781 /* Reject eight bit registers, except where the template requires
6782 them. (eg. movzb) */
6783 else if (i
.types
[op
].bitfield
.byte
6784 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6785 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6786 && (i
.tm
.operand_types
[op
].bitfield
.word
6787 || i
.tm
.operand_types
[op
].bitfield
.dword
))
6789 as_bad (_("`%s%s' not allowed with `%s%c'"),
6791 i
.op
[op
].regs
->reg_name
,
6796 /* Warn if the e or r prefix on a general reg is present. */
6797 else if ((!quiet_warnings
|| flag_code
== CODE_64BIT
)
6798 && (i
.types
[op
].bitfield
.dword
6799 || i
.types
[op
].bitfield
.qword
)
6800 && (i
.tm
.operand_types
[op
].bitfield
.class == Reg
6801 || i
.tm
.operand_types
[op
].bitfield
.instance
== Accum
)
6802 && i
.tm
.operand_types
[op
].bitfield
.word
)
6804 /* Prohibit these changes in the 64bit mode, since the
6805 lowering is more complicated. */
6806 if (flag_code
== CODE_64BIT
)
6808 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6809 register_prefix
, i
.op
[op
].regs
->reg_name
,
6813 #if REGISTER_WARNINGS
6814 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6816 (i
.op
[op
].regs
+ REGNAM_AX
- REGNAM_EAX
)->reg_name
,
6817 register_prefix
, i
.op
[op
].regs
->reg_name
, i
.suffix
);
6824 update_imm (unsigned int j
)
6826 i386_operand_type overlap
= i
.types
[j
];
6827 if ((overlap
.bitfield
.imm8
6828 || overlap
.bitfield
.imm8s
6829 || overlap
.bitfield
.imm16
6830 || overlap
.bitfield
.imm32
6831 || overlap
.bitfield
.imm32s
6832 || overlap
.bitfield
.imm64
)
6833 && !operand_type_equal (&overlap
, &imm8
)
6834 && !operand_type_equal (&overlap
, &imm8s
)
6835 && !operand_type_equal (&overlap
, &imm16
)
6836 && !operand_type_equal (&overlap
, &imm32
)
6837 && !operand_type_equal (&overlap
, &imm32s
)
6838 && !operand_type_equal (&overlap
, &imm64
))
6842 i386_operand_type temp
;
6844 operand_type_set (&temp
, 0);
6845 if (i
.suffix
== BYTE_MNEM_SUFFIX
)
6847 temp
.bitfield
.imm8
= overlap
.bitfield
.imm8
;
6848 temp
.bitfield
.imm8s
= overlap
.bitfield
.imm8s
;
6850 else if (i
.suffix
== WORD_MNEM_SUFFIX
)
6851 temp
.bitfield
.imm16
= overlap
.bitfield
.imm16
;
6852 else if (i
.suffix
== QWORD_MNEM_SUFFIX
)
6854 temp
.bitfield
.imm64
= overlap
.bitfield
.imm64
;
6855 temp
.bitfield
.imm32s
= overlap
.bitfield
.imm32s
;
6858 temp
.bitfield
.imm32
= overlap
.bitfield
.imm32
;
6861 else if (operand_type_equal (&overlap
, &imm16_32_32s
)
6862 || operand_type_equal (&overlap
, &imm16_32
)
6863 || operand_type_equal (&overlap
, &imm16_32s
))
6865 if ((flag_code
== CODE_16BIT
) ^ (i
.prefix
[DATA_PREFIX
] != 0))
6870 if (!operand_type_equal (&overlap
, &imm8
)
6871 && !operand_type_equal (&overlap
, &imm8s
)
6872 && !operand_type_equal (&overlap
, &imm16
)
6873 && !operand_type_equal (&overlap
, &imm32
)
6874 && !operand_type_equal (&overlap
, &imm32s
)
6875 && !operand_type_equal (&overlap
, &imm64
))
6877 as_bad (_("no instruction mnemonic suffix given; "
6878 "can't determine immediate size"));
6882 i
.types
[j
] = overlap
;
6892 /* Update the first 2 immediate operands. */
6893 n
= i
.operands
> 2 ? 2 : i
.operands
;
6896 for (j
= 0; j
< n
; j
++)
6897 if (update_imm (j
) == 0)
6900 /* The 3rd operand can't be immediate operand. */
6901 gas_assert (operand_type_check (i
.types
[2], imm
) == 0);
6908 process_operands (void)
6910 /* Default segment register this instruction will use for memory
6911 accesses. 0 means unknown. This is only for optimizing out
6912 unnecessary segment overrides. */
6913 const seg_entry
*default_seg
= 0;
6915 if (i
.tm
.opcode_modifier
.sse2avx
&& i
.tm
.opcode_modifier
.vexvvvv
)
6917 unsigned int dupl
= i
.operands
;
6918 unsigned int dest
= dupl
- 1;
6921 /* The destination must be an xmm register. */
6922 gas_assert (i
.reg_operands
6923 && MAX_OPERANDS
> dupl
6924 && operand_type_equal (&i
.types
[dest
], ®xmm
));
6926 if (i
.tm
.operand_types
[0].bitfield
.instance
== Accum
6927 && i
.tm
.operand_types
[0].bitfield
.xmmword
)
6929 if (i
.tm
.opcode_modifier
.vexsources
== VEX3SOURCES
)
6931 /* Keep xmm0 for instructions with VEX prefix and 3
6933 i
.tm
.operand_types
[0].bitfield
.instance
= InstanceNone
;
6934 i
.tm
.operand_types
[0].bitfield
.class = RegSIMD
;
6939 /* We remove the first xmm0 and keep the number of
6940 operands unchanged, which in fact duplicates the
6942 for (j
= 1; j
< i
.operands
; j
++)
6944 i
.op
[j
- 1] = i
.op
[j
];
6945 i
.types
[j
- 1] = i
.types
[j
];
6946 i
.tm
.operand_types
[j
- 1] = i
.tm
.operand_types
[j
];
6947 i
.flags
[j
- 1] = i
.flags
[j
];
6951 else if (i
.tm
.opcode_modifier
.implicit1stxmm0
)
6953 gas_assert ((MAX_OPERANDS
- 1) > dupl
6954 && (i
.tm
.opcode_modifier
.vexsources
6957 /* Add the implicit xmm0 for instructions with VEX prefix
6959 for (j
= i
.operands
; j
> 0; j
--)
6961 i
.op
[j
] = i
.op
[j
- 1];
6962 i
.types
[j
] = i
.types
[j
- 1];
6963 i
.tm
.operand_types
[j
] = i
.tm
.operand_types
[j
- 1];
6964 i
.flags
[j
] = i
.flags
[j
- 1];
6967 = (const reg_entry
*) hash_find (reg_hash
, "xmm0");
6968 i
.types
[0] = regxmm
;
6969 i
.tm
.operand_types
[0] = regxmm
;
6972 i
.reg_operands
+= 2;
6977 i
.op
[dupl
] = i
.op
[dest
];
6978 i
.types
[dupl
] = i
.types
[dest
];
6979 i
.tm
.operand_types
[dupl
] = i
.tm
.operand_types
[dest
];
6980 i
.flags
[dupl
] = i
.flags
[dest
];
6989 i
.op
[dupl
] = i
.op
[dest
];
6990 i
.types
[dupl
] = i
.types
[dest
];
6991 i
.tm
.operand_types
[dupl
] = i
.tm
.operand_types
[dest
];
6992 i
.flags
[dupl
] = i
.flags
[dest
];
6995 if (i
.tm
.opcode_modifier
.immext
)
6998 else if (i
.tm
.operand_types
[0].bitfield
.instance
== Accum
6999 && i
.tm
.operand_types
[0].bitfield
.xmmword
)
7003 for (j
= 1; j
< i
.operands
; j
++)
7005 i
.op
[j
- 1] = i
.op
[j
];
7006 i
.types
[j
- 1] = i
.types
[j
];
7008 /* We need to adjust fields in i.tm since they are used by
7009 build_modrm_byte. */
7010 i
.tm
.operand_types
[j
- 1] = i
.tm
.operand_types
[j
];
7012 i
.flags
[j
- 1] = i
.flags
[j
];
7019 else if (i
.tm
.opcode_modifier
.implicitquadgroup
)
7021 unsigned int regnum
, first_reg_in_group
, last_reg_in_group
;
7023 /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */
7024 gas_assert (i
.operands
>= 2 && i
.types
[1].bitfield
.class == RegSIMD
);
7025 regnum
= register_number (i
.op
[1].regs
);
7026 first_reg_in_group
= regnum
& ~3;
7027 last_reg_in_group
= first_reg_in_group
+ 3;
7028 if (regnum
!= first_reg_in_group
)
7029 as_warn (_("source register `%s%s' implicitly denotes"
7030 " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"),
7031 register_prefix
, i
.op
[1].regs
->reg_name
,
7032 register_prefix
, i
.op
[1].regs
->reg_name
, first_reg_in_group
,
7033 register_prefix
, i
.op
[1].regs
->reg_name
, last_reg_in_group
,
7036 else if (i
.tm
.opcode_modifier
.regkludge
)
7038 /* The imul $imm, %reg instruction is converted into
7039 imul $imm, %reg, %reg, and the clr %reg instruction
7040 is converted into xor %reg, %reg. */
7042 unsigned int first_reg_op
;
7044 if (operand_type_check (i
.types
[0], reg
))
7048 /* Pretend we saw the extra register operand. */
7049 gas_assert (i
.reg_operands
== 1
7050 && i
.op
[first_reg_op
+ 1].regs
== 0);
7051 i
.op
[first_reg_op
+ 1].regs
= i
.op
[first_reg_op
].regs
;
7052 i
.types
[first_reg_op
+ 1] = i
.types
[first_reg_op
];
7057 if (i
.tm
.opcode_modifier
.modrm
)
7059 /* The opcode is completed (modulo i.tm.extension_opcode which
7060 must be put into the modrm byte). Now, we make the modrm and
7061 index base bytes based on all the info we've collected. */
7063 default_seg
= build_modrm_byte ();
7065 else if (i
.types
[0].bitfield
.class == SReg
)
7067 if (flag_code
!= CODE_64BIT
7068 ? i
.tm
.base_opcode
== POP_SEG_SHORT
7069 && i
.op
[0].regs
->reg_num
== 1
7070 : (i
.tm
.base_opcode
| 1) == POP_SEG386_SHORT
7071 && i
.op
[0].regs
->reg_num
< 4)
7073 as_bad (_("you can't `%s %s%s'"),
7074 i
.tm
.name
, register_prefix
, i
.op
[0].regs
->reg_name
);
7077 if ( i
.op
[0].regs
->reg_num
> 3 && i
.tm
.opcode_length
== 1 )
7079 i
.tm
.base_opcode
^= POP_SEG_SHORT
^ POP_SEG386_SHORT
;
7080 i
.tm
.opcode_length
= 2;
7082 i
.tm
.base_opcode
|= (i
.op
[0].regs
->reg_num
<< 3);
7084 else if ((i
.tm
.base_opcode
& ~0x3) == MOV_AX_DISP32
)
7088 else if (i
.tm
.opcode_modifier
.isstring
)
7090 /* For the string instructions that allow a segment override
7091 on one of their operands, the default segment is ds. */
7094 else if (i
.tm
.opcode_modifier
.shortform
)
7096 /* The register or float register operand is in operand
7098 unsigned int op
= i
.tm
.operand_types
[0].bitfield
.class != Reg
;
7100 /* Register goes in low 3 bits of opcode. */
7101 i
.tm
.base_opcode
|= i
.op
[op
].regs
->reg_num
;
7102 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
7104 if (!quiet_warnings
&& i
.tm
.opcode_modifier
.ugh
)
7106 /* Warn about some common errors, but press on regardless.
7107 The first case can be generated by gcc (<= 2.8.1). */
7108 if (i
.operands
== 2)
7110 /* Reversed arguments on faddp, fsubp, etc. */
7111 as_warn (_("translating to `%s %s%s,%s%s'"), i
.tm
.name
,
7112 register_prefix
, i
.op
[!intel_syntax
].regs
->reg_name
,
7113 register_prefix
, i
.op
[intel_syntax
].regs
->reg_name
);
7117 /* Extraneous `l' suffix on fp insn. */
7118 as_warn (_("translating to `%s %s%s'"), i
.tm
.name
,
7119 register_prefix
, i
.op
[0].regs
->reg_name
);
7124 if (i
.tm
.base_opcode
== 0x8d /* lea */
7127 as_warn (_("segment override on `%s' is ineffectual"), i
.tm
.name
);
7129 /* If a segment was explicitly specified, and the specified segment
7130 is not the default, use an opcode prefix to select it. If we
7131 never figured out what the default segment is, then default_seg
7132 will be zero at this point, and the specified segment prefix will
7134 if ((i
.seg
[0]) && (i
.seg
[0] != default_seg
))
7136 if (!add_prefix (i
.seg
[0]->seg_prefix
))
7142 static const seg_entry
*
7143 build_modrm_byte (void)
7145 const seg_entry
*default_seg
= 0;
7146 unsigned int source
, dest
;
7149 vex_3_sources
= i
.tm
.opcode_modifier
.vexsources
== VEX3SOURCES
;
7152 unsigned int nds
, reg_slot
;
7155 dest
= i
.operands
- 1;
7158 /* There are 2 kinds of instructions:
7159 1. 5 operands: 4 register operands or 3 register operands
7160 plus 1 memory operand plus one Imm4 operand, VexXDS, and
7161 VexW0 or VexW1. The destination must be either XMM, YMM or
7163 2. 4 operands: 4 register operands or 3 register operands
7164 plus 1 memory operand, with VexXDS. */
7165 gas_assert ((i
.reg_operands
== 4
7166 || (i
.reg_operands
== 3 && i
.mem_operands
== 1))
7167 && i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
7168 && i
.tm
.opcode_modifier
.vexw
7169 && i
.tm
.operand_types
[dest
].bitfield
.class == RegSIMD
);
7171 /* If VexW1 is set, the first non-immediate operand is the source and
7172 the second non-immediate one is encoded in the immediate operand. */
7173 if (i
.tm
.opcode_modifier
.vexw
== VEXW1
)
7175 source
= i
.imm_operands
;
7176 reg_slot
= i
.imm_operands
+ 1;
7180 source
= i
.imm_operands
+ 1;
7181 reg_slot
= i
.imm_operands
;
7184 if (i
.imm_operands
== 0)
7186 /* When there is no immediate operand, generate an 8bit
7187 immediate operand to encode the first operand. */
7188 exp
= &im_expressions
[i
.imm_operands
++];
7189 i
.op
[i
.operands
].imms
= exp
;
7190 i
.types
[i
.operands
] = imm8
;
7193 gas_assert (i
.tm
.operand_types
[reg_slot
].bitfield
.class == RegSIMD
);
7194 exp
->X_op
= O_constant
;
7195 exp
->X_add_number
= register_number (i
.op
[reg_slot
].regs
) << 4;
7196 gas_assert ((i
.op
[reg_slot
].regs
->reg_flags
& RegVRex
) == 0);
7200 gas_assert (i
.imm_operands
== 1);
7201 gas_assert (fits_in_imm4 (i
.op
[0].imms
->X_add_number
));
7202 gas_assert (!i
.tm
.opcode_modifier
.immext
);
7204 /* Turn on Imm8 again so that output_imm will generate it. */
7205 i
.types
[0].bitfield
.imm8
= 1;
7207 gas_assert (i
.tm
.operand_types
[reg_slot
].bitfield
.class == RegSIMD
);
7208 i
.op
[0].imms
->X_add_number
7209 |= register_number (i
.op
[reg_slot
].regs
) << 4;
7210 gas_assert ((i
.op
[reg_slot
].regs
->reg_flags
& RegVRex
) == 0);
7213 gas_assert (i
.tm
.operand_types
[nds
].bitfield
.class == RegSIMD
);
7214 i
.vex
.register_specifier
= i
.op
[nds
].regs
;
7219 /* i.reg_operands MUST be the number of real register operands;
7220 implicit registers do not count. If there are 3 register
7221 operands, it must be a instruction with VexNDS. For a
7222 instruction with VexNDD, the destination register is encoded
7223 in VEX prefix. If there are 4 register operands, it must be
7224 a instruction with VEX prefix and 3 sources. */
7225 if (i
.mem_operands
== 0
7226 && ((i
.reg_operands
== 2
7227 && i
.tm
.opcode_modifier
.vexvvvv
<= VEXXDS
)
7228 || (i
.reg_operands
== 3
7229 && i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
7230 || (i
.reg_operands
== 4 && vex_3_sources
)))
7238 /* When there are 3 operands, one of them may be immediate,
7239 which may be the first or the last operand. Otherwise,
7240 the first operand must be shift count register (cl) or it
7241 is an instruction with VexNDS. */
7242 gas_assert (i
.imm_operands
== 1
7243 || (i
.imm_operands
== 0
7244 && (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
7245 || (i
.types
[0].bitfield
.instance
== RegC
7246 && i
.types
[0].bitfield
.byte
))));
7247 if (operand_type_check (i
.types
[0], imm
)
7248 || (i
.types
[0].bitfield
.instance
== RegC
7249 && i
.types
[0].bitfield
.byte
))
7255 /* When there are 4 operands, the first two must be 8bit
7256 immediate operands. The source operand will be the 3rd
7259 For instructions with VexNDS, if the first operand
7260 an imm8, the source operand is the 2nd one. If the last
7261 operand is imm8, the source operand is the first one. */
7262 gas_assert ((i
.imm_operands
== 2
7263 && i
.types
[0].bitfield
.imm8
7264 && i
.types
[1].bitfield
.imm8
)
7265 || (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
7266 && i
.imm_operands
== 1
7267 && (i
.types
[0].bitfield
.imm8
7268 || i
.types
[i
.operands
- 1].bitfield
.imm8
7270 if (i
.imm_operands
== 2)
7274 if (i
.types
[0].bitfield
.imm8
)
7281 if (is_evex_encoding (&i
.tm
))
7283 /* For EVEX instructions, when there are 5 operands, the
7284 first one must be immediate operand. If the second one
7285 is immediate operand, the source operand is the 3th
7286 one. If the last one is immediate operand, the source
7287 operand is the 2nd one. */
7288 gas_assert (i
.imm_operands
== 2
7289 && i
.tm
.opcode_modifier
.sae
7290 && operand_type_check (i
.types
[0], imm
));
7291 if (operand_type_check (i
.types
[1], imm
))
7293 else if (operand_type_check (i
.types
[4], imm
))
7307 /* RC/SAE operand could be between DEST and SRC. That happens
7308 when one operand is GPR and the other one is XMM/YMM/ZMM
7310 if (i
.rounding
&& i
.rounding
->operand
== (int) dest
)
7313 if (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
7315 /* For instructions with VexNDS, the register-only source
7316 operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask
7317 register. It is encoded in VEX prefix. */
7319 i386_operand_type op
;
7322 /* Check register-only source operand when two source
7323 operands are swapped. */
7324 if (!i
.tm
.operand_types
[source
].bitfield
.baseindex
7325 && i
.tm
.operand_types
[dest
].bitfield
.baseindex
)
7333 op
= i
.tm
.operand_types
[vvvv
];
7334 if ((dest
+ 1) >= i
.operands
7335 || ((op
.bitfield
.class != Reg
7336 || (!op
.bitfield
.dword
&& !op
.bitfield
.qword
))
7337 && op
.bitfield
.class != RegSIMD
7338 && !operand_type_equal (&op
, ®mask
)))
7340 i
.vex
.register_specifier
= i
.op
[vvvv
].regs
;
7346 /* One of the register operands will be encoded in the i.rm.reg
7347 field, the other in the combined i.rm.mode and i.rm.regmem
7348 fields. If no form of this instruction supports a memory
7349 destination operand, then we assume the source operand may
7350 sometimes be a memory operand and so we need to store the
7351 destination in the i.rm.reg field. */
7352 if (!i
.tm
.opcode_modifier
.regmem
7353 && operand_type_check (i
.tm
.operand_types
[dest
], anymem
) == 0)
7355 i
.rm
.reg
= i
.op
[dest
].regs
->reg_num
;
7356 i
.rm
.regmem
= i
.op
[source
].regs
->reg_num
;
7357 if (i
.op
[dest
].regs
->reg_type
.bitfield
.class == RegMMX
7358 || i
.op
[source
].regs
->reg_type
.bitfield
.class == RegMMX
)
7359 i
.has_regmmx
= TRUE
;
7360 else if (i
.op
[dest
].regs
->reg_type
.bitfield
.class == RegSIMD
7361 || i
.op
[source
].regs
->reg_type
.bitfield
.class == RegSIMD
)
7363 if (i
.types
[dest
].bitfield
.zmmword
7364 || i
.types
[source
].bitfield
.zmmword
)
7365 i
.has_regzmm
= TRUE
;
7366 else if (i
.types
[dest
].bitfield
.ymmword
7367 || i
.types
[source
].bitfield
.ymmword
)
7368 i
.has_regymm
= TRUE
;
7370 i
.has_regxmm
= TRUE
;
7372 if ((i
.op
[dest
].regs
->reg_flags
& RegRex
) != 0)
7374 if ((i
.op
[dest
].regs
->reg_flags
& RegVRex
) != 0)
7376 if ((i
.op
[source
].regs
->reg_flags
& RegRex
) != 0)
7378 if ((i
.op
[source
].regs
->reg_flags
& RegVRex
) != 0)
7383 i
.rm
.reg
= i
.op
[source
].regs
->reg_num
;
7384 i
.rm
.regmem
= i
.op
[dest
].regs
->reg_num
;
7385 if ((i
.op
[dest
].regs
->reg_flags
& RegRex
) != 0)
7387 if ((i
.op
[dest
].regs
->reg_flags
& RegVRex
) != 0)
7389 if ((i
.op
[source
].regs
->reg_flags
& RegRex
) != 0)
7391 if ((i
.op
[source
].regs
->reg_flags
& RegVRex
) != 0)
7394 if (flag_code
!= CODE_64BIT
&& (i
.rex
& REX_R
))
7396 if (i
.types
[!i
.tm
.opcode_modifier
.regmem
].bitfield
.class != RegCR
)
7399 add_prefix (LOCK_PREFIX_OPCODE
);
7403 { /* If it's not 2 reg operands... */
7408 unsigned int fake_zero_displacement
= 0;
7411 for (op
= 0; op
< i
.operands
; op
++)
7412 if (i
.flags
[op
] & Operand_Mem
)
7414 gas_assert (op
< i
.operands
);
7416 if (i
.tm
.opcode_modifier
.vecsib
)
7418 if (i
.index_reg
->reg_num
== RegIZ
)
7421 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
7424 i
.sib
.base
= NO_BASE_REGISTER
;
7425 i
.sib
.scale
= i
.log2_scale_factor
;
7426 i
.types
[op
].bitfield
.disp8
= 0;
7427 i
.types
[op
].bitfield
.disp16
= 0;
7428 i
.types
[op
].bitfield
.disp64
= 0;
7429 if (flag_code
!= CODE_64BIT
|| i
.prefix
[ADDR_PREFIX
])
7431 /* Must be 32 bit */
7432 i
.types
[op
].bitfield
.disp32
= 1;
7433 i
.types
[op
].bitfield
.disp32s
= 0;
7437 i
.types
[op
].bitfield
.disp32
= 0;
7438 i
.types
[op
].bitfield
.disp32s
= 1;
7441 i
.sib
.index
= i
.index_reg
->reg_num
;
7442 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
7444 if ((i
.index_reg
->reg_flags
& RegVRex
) != 0)
7450 if (i
.base_reg
== 0)
7453 if (!i
.disp_operands
)
7454 fake_zero_displacement
= 1;
7455 if (i
.index_reg
== 0)
7457 i386_operand_type newdisp
;
7459 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
7460 /* Operand is just <disp> */
7461 if (flag_code
== CODE_64BIT
)
7463 /* 64bit mode overwrites the 32bit absolute
7464 addressing by RIP relative addressing and
7465 absolute addressing is encoded by one of the
7466 redundant SIB forms. */
7467 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
7468 i
.sib
.base
= NO_BASE_REGISTER
;
7469 i
.sib
.index
= NO_INDEX_REGISTER
;
7470 newdisp
= (!i
.prefix
[ADDR_PREFIX
] ? disp32s
: disp32
);
7472 else if ((flag_code
== CODE_16BIT
)
7473 ^ (i
.prefix
[ADDR_PREFIX
] != 0))
7475 i
.rm
.regmem
= NO_BASE_REGISTER_16
;
7480 i
.rm
.regmem
= NO_BASE_REGISTER
;
7483 i
.types
[op
] = operand_type_and_not (i
.types
[op
], anydisp
);
7484 i
.types
[op
] = operand_type_or (i
.types
[op
], newdisp
);
7486 else if (!i
.tm
.opcode_modifier
.vecsib
)
7488 /* !i.base_reg && i.index_reg */
7489 if (i
.index_reg
->reg_num
== RegIZ
)
7490 i
.sib
.index
= NO_INDEX_REGISTER
;
7492 i
.sib
.index
= i
.index_reg
->reg_num
;
7493 i
.sib
.base
= NO_BASE_REGISTER
;
7494 i
.sib
.scale
= i
.log2_scale_factor
;
7495 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
7496 i
.types
[op
].bitfield
.disp8
= 0;
7497 i
.types
[op
].bitfield
.disp16
= 0;
7498 i
.types
[op
].bitfield
.disp64
= 0;
7499 if (flag_code
!= CODE_64BIT
|| i
.prefix
[ADDR_PREFIX
])
7501 /* Must be 32 bit */
7502 i
.types
[op
].bitfield
.disp32
= 1;
7503 i
.types
[op
].bitfield
.disp32s
= 0;
7507 i
.types
[op
].bitfield
.disp32
= 0;
7508 i
.types
[op
].bitfield
.disp32s
= 1;
7510 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
7514 /* RIP addressing for 64bit mode. */
7515 else if (i
.base_reg
->reg_num
== RegIP
)
7517 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
7518 i
.rm
.regmem
= NO_BASE_REGISTER
;
7519 i
.types
[op
].bitfield
.disp8
= 0;
7520 i
.types
[op
].bitfield
.disp16
= 0;
7521 i
.types
[op
].bitfield
.disp32
= 0;
7522 i
.types
[op
].bitfield
.disp32s
= 1;
7523 i
.types
[op
].bitfield
.disp64
= 0;
7524 i
.flags
[op
] |= Operand_PCrel
;
7525 if (! i
.disp_operands
)
7526 fake_zero_displacement
= 1;
7528 else if (i
.base_reg
->reg_type
.bitfield
.word
)
7530 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
7531 switch (i
.base_reg
->reg_num
)
7534 if (i
.index_reg
== 0)
7536 else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */
7537 i
.rm
.regmem
= i
.index_reg
->reg_num
- 6;
7541 if (i
.index_reg
== 0)
7544 if (operand_type_check (i
.types
[op
], disp
) == 0)
7546 /* fake (%bp) into 0(%bp) */
7547 i
.types
[op
].bitfield
.disp8
= 1;
7548 fake_zero_displacement
= 1;
7551 else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */
7552 i
.rm
.regmem
= i
.index_reg
->reg_num
- 6 + 2;
7554 default: /* (%si) -> 4 or (%di) -> 5 */
7555 i
.rm
.regmem
= i
.base_reg
->reg_num
- 6 + 4;
7557 i
.rm
.mode
= mode_from_disp_size (i
.types
[op
]);
7559 else /* i.base_reg and 32/64 bit mode */
7561 if (flag_code
== CODE_64BIT
7562 && operand_type_check (i
.types
[op
], disp
))
7564 i
.types
[op
].bitfield
.disp16
= 0;
7565 i
.types
[op
].bitfield
.disp64
= 0;
7566 if (i
.prefix
[ADDR_PREFIX
] == 0)
7568 i
.types
[op
].bitfield
.disp32
= 0;
7569 i
.types
[op
].bitfield
.disp32s
= 1;
7573 i
.types
[op
].bitfield
.disp32
= 1;
7574 i
.types
[op
].bitfield
.disp32s
= 0;
7578 if (!i
.tm
.opcode_modifier
.vecsib
)
7579 i
.rm
.regmem
= i
.base_reg
->reg_num
;
7580 if ((i
.base_reg
->reg_flags
& RegRex
) != 0)
7582 i
.sib
.base
= i
.base_reg
->reg_num
;
7583 /* x86-64 ignores REX prefix bit here to avoid decoder
7585 if (!(i
.base_reg
->reg_flags
& RegRex
)
7586 && (i
.base_reg
->reg_num
== EBP_REG_NUM
7587 || i
.base_reg
->reg_num
== ESP_REG_NUM
))
7589 if (i
.base_reg
->reg_num
== 5 && i
.disp_operands
== 0)
7591 fake_zero_displacement
= 1;
7592 i
.types
[op
].bitfield
.disp8
= 1;
7594 i
.sib
.scale
= i
.log2_scale_factor
;
7595 if (i
.index_reg
== 0)
7597 gas_assert (!i
.tm
.opcode_modifier
.vecsib
);
7598 /* <disp>(%esp) becomes two byte modrm with no index
7599 register. We've already stored the code for esp
7600 in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING.
7601 Any base register besides %esp will not use the
7602 extra modrm byte. */
7603 i
.sib
.index
= NO_INDEX_REGISTER
;
7605 else if (!i
.tm
.opcode_modifier
.vecsib
)
7607 if (i
.index_reg
->reg_num
== RegIZ
)
7608 i
.sib
.index
= NO_INDEX_REGISTER
;
7610 i
.sib
.index
= i
.index_reg
->reg_num
;
7611 i
.rm
.regmem
= ESCAPE_TO_TWO_BYTE_ADDRESSING
;
7612 if ((i
.index_reg
->reg_flags
& RegRex
) != 0)
7617 && (i
.reloc
[op
] == BFD_RELOC_386_TLS_DESC_CALL
7618 || i
.reloc
[op
] == BFD_RELOC_X86_64_TLSDESC_CALL
))
7622 if (!fake_zero_displacement
7626 fake_zero_displacement
= 1;
7627 if (i
.disp_encoding
== disp_encoding_8bit
)
7628 i
.types
[op
].bitfield
.disp8
= 1;
7630 i
.types
[op
].bitfield
.disp32
= 1;
7632 i
.rm
.mode
= mode_from_disp_size (i
.types
[op
]);
7636 if (fake_zero_displacement
)
7638 /* Fakes a zero displacement assuming that i.types[op]
7639 holds the correct displacement size. */
7642 gas_assert (i
.op
[op
].disps
== 0);
7643 exp
= &disp_expressions
[i
.disp_operands
++];
7644 i
.op
[op
].disps
= exp
;
7645 exp
->X_op
= O_constant
;
7646 exp
->X_add_number
= 0;
7647 exp
->X_add_symbol
= (symbolS
*) 0;
7648 exp
->X_op_symbol
= (symbolS
*) 0;
7656 if (i
.tm
.opcode_modifier
.vexsources
== XOP2SOURCES
)
7658 if (operand_type_check (i
.types
[0], imm
))
7659 i
.vex
.register_specifier
= NULL
;
7662 /* VEX.vvvv encodes one of the sources when the first
7663 operand is not an immediate. */
7664 if (i
.tm
.opcode_modifier
.vexw
== VEXW0
)
7665 i
.vex
.register_specifier
= i
.op
[0].regs
;
7667 i
.vex
.register_specifier
= i
.op
[1].regs
;
7670 /* Destination is a XMM register encoded in the ModRM.reg
7672 i
.rm
.reg
= i
.op
[2].regs
->reg_num
;
7673 if ((i
.op
[2].regs
->reg_flags
& RegRex
) != 0)
7676 /* ModRM.rm and VEX.B encodes the other source. */
7677 if (!i
.mem_operands
)
7681 if (i
.tm
.opcode_modifier
.vexw
== VEXW0
)
7682 i
.rm
.regmem
= i
.op
[1].regs
->reg_num
;
7684 i
.rm
.regmem
= i
.op
[0].regs
->reg_num
;
7686 if ((i
.op
[1].regs
->reg_flags
& RegRex
) != 0)
7690 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXLWP
)
7692 i
.vex
.register_specifier
= i
.op
[2].regs
;
7693 if (!i
.mem_operands
)
7696 i
.rm
.regmem
= i
.op
[1].regs
->reg_num
;
7697 if ((i
.op
[1].regs
->reg_flags
& RegRex
) != 0)
7701 /* Fill in i.rm.reg or i.rm.regmem field with register operand
7702 (if any) based on i.tm.extension_opcode. Again, we must be
7703 careful to make sure that segment/control/debug/test/MMX
7704 registers are coded into the i.rm.reg field. */
7705 else if (i
.reg_operands
)
7708 unsigned int vex_reg
= ~0;
7710 for (op
= 0; op
< i
.operands
; op
++)
7712 if (i
.types
[op
].bitfield
.class == Reg
7713 || i
.types
[op
].bitfield
.class == RegBND
7714 || i
.types
[op
].bitfield
.class == RegMask
7715 || i
.types
[op
].bitfield
.class == SReg
7716 || i
.types
[op
].bitfield
.class == RegCR
7717 || i
.types
[op
].bitfield
.class == RegDR
7718 || i
.types
[op
].bitfield
.class == RegTR
)
7720 if (i
.types
[op
].bitfield
.class == RegSIMD
)
7722 if (i
.types
[op
].bitfield
.zmmword
)
7723 i
.has_regzmm
= TRUE
;
7724 else if (i
.types
[op
].bitfield
.ymmword
)
7725 i
.has_regymm
= TRUE
;
7727 i
.has_regxmm
= TRUE
;
7730 if (i
.types
[op
].bitfield
.class == RegMMX
)
7732 i
.has_regmmx
= TRUE
;
7739 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXXDS
)
7741 /* For instructions with VexNDS, the register-only
7742 source operand is encoded in VEX prefix. */
7743 gas_assert (mem
!= (unsigned int) ~0);
7748 gas_assert (op
< i
.operands
);
7752 /* Check register-only source operand when two source
7753 operands are swapped. */
7754 if (!i
.tm
.operand_types
[op
].bitfield
.baseindex
7755 && i
.tm
.operand_types
[op
+ 1].bitfield
.baseindex
)
7759 gas_assert (mem
== (vex_reg
+ 1)
7760 && op
< i
.operands
);
7765 gas_assert (vex_reg
< i
.operands
);
7769 else if (i
.tm
.opcode_modifier
.vexvvvv
== VEXNDD
)
7771 /* For instructions with VexNDD, the register destination
7772 is encoded in VEX prefix. */
7773 if (i
.mem_operands
== 0)
7775 /* There is no memory operand. */
7776 gas_assert ((op
+ 2) == i
.operands
);
7781 /* There are only 2 non-immediate operands. */
7782 gas_assert (op
< i
.imm_operands
+ 2
7783 && i
.operands
== i
.imm_operands
+ 2);
7784 vex_reg
= i
.imm_operands
+ 1;
7788 gas_assert (op
< i
.operands
);
7790 if (vex_reg
!= (unsigned int) ~0)
7792 i386_operand_type
*type
= &i
.tm
.operand_types
[vex_reg
];
7794 if ((type
->bitfield
.class != Reg
7795 || (!type
->bitfield
.dword
&& !type
->bitfield
.qword
))
7796 && type
->bitfield
.class != RegSIMD
7797 && !operand_type_equal (type
, ®mask
))
7800 i
.vex
.register_specifier
= i
.op
[vex_reg
].regs
;
7803 /* Don't set OP operand twice. */
7806 /* If there is an extension opcode to put here, the
7807 register number must be put into the regmem field. */
7808 if (i
.tm
.extension_opcode
!= None
)
7810 i
.rm
.regmem
= i
.op
[op
].regs
->reg_num
;
7811 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
7813 if ((i
.op
[op
].regs
->reg_flags
& RegVRex
) != 0)
7818 i
.rm
.reg
= i
.op
[op
].regs
->reg_num
;
7819 if ((i
.op
[op
].regs
->reg_flags
& RegRex
) != 0)
7821 if ((i
.op
[op
].regs
->reg_flags
& RegVRex
) != 0)
7826 /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we
7827 must set it to 3 to indicate this is a register operand
7828 in the regmem field. */
7829 if (!i
.mem_operands
)
7833 /* Fill in i.rm.reg field with extension opcode (if any). */
7834 if (i
.tm
.extension_opcode
!= None
)
7835 i
.rm
.reg
= i
.tm
.extension_opcode
;
7841 flip_code16 (unsigned int code16
)
7843 gas_assert (i
.tm
.operands
== 1);
7845 return !(i
.prefix
[REX_PREFIX
] & REX_W
)
7846 && (code16
? i
.tm
.operand_types
[0].bitfield
.disp32
7847 || i
.tm
.operand_types
[0].bitfield
.disp32s
7848 : i
.tm
.operand_types
[0].bitfield
.disp16
)
7853 output_branch (void)
7859 relax_substateT subtype
;
7863 code16
= flag_code
== CODE_16BIT
? CODE16
: 0;
7864 size
= i
.disp_encoding
== disp_encoding_32bit
? BIG
: SMALL
;
7867 if (i
.prefix
[DATA_PREFIX
] != 0)
7871 code16
^= flip_code16(code16
);
7873 /* Pentium4 branch hints. */
7874 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
/* not taken */
7875 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
/* taken */)
7880 if (i
.prefix
[REX_PREFIX
] != 0)
7886 /* BND prefixed jump. */
7887 if (i
.prefix
[BND_PREFIX
] != 0)
7893 if (i
.prefixes
!= 0)
7894 as_warn (_("skipping prefixes on `%s'"), i
.tm
.name
);
7896 /* It's always a symbol; End frag & setup for relax.
7897 Make sure there is enough room in this frag for the largest
7898 instruction we may generate in md_convert_frag. This is 2
7899 bytes for the opcode and room for the prefix and largest
7901 frag_grow (prefix
+ 2 + 4);
7902 /* Prefix and 1 opcode byte go in fr_fix. */
7903 p
= frag_more (prefix
+ 1);
7904 if (i
.prefix
[DATA_PREFIX
] != 0)
7905 *p
++ = DATA_PREFIX_OPCODE
;
7906 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
7907 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
)
7908 *p
++ = i
.prefix
[SEG_PREFIX
];
7909 if (i
.prefix
[BND_PREFIX
] != 0)
7910 *p
++ = BND_PREFIX_OPCODE
;
7911 if (i
.prefix
[REX_PREFIX
] != 0)
7912 *p
++ = i
.prefix
[REX_PREFIX
];
7913 *p
= i
.tm
.base_opcode
;
7915 if ((unsigned char) *p
== JUMP_PC_RELATIVE
)
7916 subtype
= ENCODE_RELAX_STATE (UNCOND_JUMP
, size
);
7917 else if (cpu_arch_flags
.bitfield
.cpui386
)
7918 subtype
= ENCODE_RELAX_STATE (COND_JUMP
, size
);
7920 subtype
= ENCODE_RELAX_STATE (COND_JUMP86
, size
);
7923 sym
= i
.op
[0].disps
->X_add_symbol
;
7924 off
= i
.op
[0].disps
->X_add_number
;
7926 if (i
.op
[0].disps
->X_op
!= O_constant
7927 && i
.op
[0].disps
->X_op
!= O_symbol
)
7929 /* Handle complex expressions. */
7930 sym
= make_expr_symbol (i
.op
[0].disps
);
7934 /* 1 possible extra opcode + 4 byte displacement go in var part.
7935 Pass reloc in fr_var. */
7936 frag_var (rs_machine_dependent
, 5, i
.reloc
[0], subtype
, sym
, off
, p
);
7939 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
7940 /* Return TRUE iff PLT32 relocation should be used for branching to
7944 need_plt32_p (symbolS
*s
)
7946 /* PLT32 relocation is ELF only. */
7951 /* Don't emit PLT32 relocation on Solaris: neither native linker nor
7952 krtld support it. */
7956 /* Since there is no need to prepare for PLT branch on x86-64, we
7957 can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can
7958 be used as a marker for 32-bit PC-relative branches. */
7962 /* Weak or undefined symbol need PLT32 relocation. */
7963 if (S_IS_WEAK (s
) || !S_IS_DEFINED (s
))
7966 /* Non-global symbol doesn't need PLT32 relocation. */
7967 if (! S_IS_EXTERNAL (s
))
7970 /* Other global symbols need PLT32 relocation. NB: Symbol with
7971 non-default visibilities are treated as normal global symbol
7972 so that PLT32 relocation can be used as a marker for 32-bit
7973 PC-relative branches. It is useful for linker relaxation. */
7984 bfd_reloc_code_real_type jump_reloc
= i
.reloc
[0];
7986 if (i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
)
7988 /* This is a loop or jecxz type instruction. */
7990 if (i
.prefix
[ADDR_PREFIX
] != 0)
7992 FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE
);
7995 /* Pentium4 branch hints. */
7996 if (i
.prefix
[SEG_PREFIX
] == CS_PREFIX_OPCODE
/* not taken */
7997 || i
.prefix
[SEG_PREFIX
] == DS_PREFIX_OPCODE
/* taken */)
7999 FRAG_APPEND_1_CHAR (i
.prefix
[SEG_PREFIX
]);
8008 if (flag_code
== CODE_16BIT
)
8011 if (i
.prefix
[DATA_PREFIX
] != 0)
8013 FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE
);
8015 code16
^= flip_code16(code16
);
8023 /* BND prefixed jump. */
8024 if (i
.prefix
[BND_PREFIX
] != 0)
8026 FRAG_APPEND_1_CHAR (i
.prefix
[BND_PREFIX
]);
8030 if (i
.prefix
[REX_PREFIX
] != 0)
8032 FRAG_APPEND_1_CHAR (i
.prefix
[REX_PREFIX
]);
8036 if (i
.prefixes
!= 0)
8037 as_warn (_("skipping prefixes on `%s'"), i
.tm
.name
);
8039 p
= frag_more (i
.tm
.opcode_length
+ size
);
8040 switch (i
.tm
.opcode_length
)
8043 *p
++ = i
.tm
.base_opcode
>> 8;
8046 *p
++ = i
.tm
.base_opcode
;
8052 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8054 && jump_reloc
== NO_RELOC
8055 && need_plt32_p (i
.op
[0].disps
->X_add_symbol
))
8056 jump_reloc
= BFD_RELOC_X86_64_PLT32
;
8059 jump_reloc
= reloc (size
, 1, 1, jump_reloc
);
8061 fixP
= fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
8062 i
.op
[0].disps
, 1, jump_reloc
);
8064 /* All jumps handled here are signed, but don't use a signed limit
8065 check for 32 and 16 bit jumps as we want to allow wrap around at
8066 4G and 64k respectively. */
8068 fixP
->fx_signed
= 1;
8072 output_interseg_jump (void)
8080 if (flag_code
== CODE_16BIT
)
8084 if (i
.prefix
[DATA_PREFIX
] != 0)
8091 gas_assert (!i
.prefix
[REX_PREFIX
]);
8097 if (i
.prefixes
!= 0)
8098 as_warn (_("skipping prefixes on `%s'"), i
.tm
.name
);
8100 /* 1 opcode; 2 segment; offset */
8101 p
= frag_more (prefix
+ 1 + 2 + size
);
8103 if (i
.prefix
[DATA_PREFIX
] != 0)
8104 *p
++ = DATA_PREFIX_OPCODE
;
8106 if (i
.prefix
[REX_PREFIX
] != 0)
8107 *p
++ = i
.prefix
[REX_PREFIX
];
8109 *p
++ = i
.tm
.base_opcode
;
8110 if (i
.op
[1].imms
->X_op
== O_constant
)
8112 offsetT n
= i
.op
[1].imms
->X_add_number
;
8115 && !fits_in_unsigned_word (n
)
8116 && !fits_in_signed_word (n
))
8118 as_bad (_("16-bit jump out of range"));
8121 md_number_to_chars (p
, n
, size
);
8124 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
8125 i
.op
[1].imms
, 0, reloc (size
, 0, 0, i
.reloc
[1]));
8126 if (i
.op
[0].imms
->X_op
!= O_constant
)
8127 as_bad (_("can't handle non absolute segment in `%s'"),
8129 md_number_to_chars (p
+ size
, (valueT
) i
.op
[0].imms
->X_add_number
, 2);
8132 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8137 asection
*seg
= now_seg
;
8138 subsegT subseg
= now_subseg
;
8140 unsigned int alignment
, align_size_1
;
8141 unsigned int isa_1_descsz
, feature_2_descsz
, descsz
;
8142 unsigned int isa_1_descsz_raw
, feature_2_descsz_raw
;
8143 unsigned int padding
;
8145 if (!IS_ELF
|| !x86_used_note
)
8148 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_X86
;
8150 /* The .note.gnu.property section layout:
8152 Field Length Contents
8155 n_descsz 4 The note descriptor size
8156 n_type 4 NT_GNU_PROPERTY_TYPE_0
8158 n_desc n_descsz The program property array
8162 /* Create the .note.gnu.property section. */
8163 sec
= subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME
, 0);
8164 bfd_set_section_flags (sec
,
8171 if (get_elf_backend_data (stdoutput
)->s
->elfclass
== ELFCLASS64
)
8182 bfd_set_section_alignment (sec
, alignment
);
8183 elf_section_type (sec
) = SHT_NOTE
;
8185 /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size
8187 isa_1_descsz_raw
= 4 + 4 + 4;
8188 /* Align GNU_PROPERTY_X86_ISA_1_USED. */
8189 isa_1_descsz
= (isa_1_descsz_raw
+ align_size_1
) & ~align_size_1
;
8191 feature_2_descsz_raw
= isa_1_descsz
;
8192 /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size
8194 feature_2_descsz_raw
+= 4 + 4 + 4;
8195 /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */
8196 feature_2_descsz
= ((feature_2_descsz_raw
+ align_size_1
)
8199 descsz
= feature_2_descsz
;
8200 /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */
8201 p
= frag_more (4 + 4 + 4 + 4 + descsz
);
8203 /* Write n_namsz. */
8204 md_number_to_chars (p
, (valueT
) 4, 4);
8206 /* Write n_descsz. */
8207 md_number_to_chars (p
+ 4, (valueT
) descsz
, 4);
8210 md_number_to_chars (p
+ 4 * 2, (valueT
) NT_GNU_PROPERTY_TYPE_0
, 4);
8213 memcpy (p
+ 4 * 3, "GNU", 4);
8215 /* Write 4-byte type. */
8216 md_number_to_chars (p
+ 4 * 4,
8217 (valueT
) GNU_PROPERTY_X86_ISA_1_USED
, 4);
8219 /* Write 4-byte data size. */
8220 md_number_to_chars (p
+ 4 * 5, (valueT
) 4, 4);
8222 /* Write 4-byte data. */
8223 md_number_to_chars (p
+ 4 * 6, (valueT
) x86_isa_1_used
, 4);
8225 /* Zero out paddings. */
8226 padding
= isa_1_descsz
- isa_1_descsz_raw
;
8228 memset (p
+ 4 * 7, 0, padding
);
8230 /* Write 4-byte type. */
8231 md_number_to_chars (p
+ isa_1_descsz
+ 4 * 4,
8232 (valueT
) GNU_PROPERTY_X86_FEATURE_2_USED
, 4);
8234 /* Write 4-byte data size. */
8235 md_number_to_chars (p
+ isa_1_descsz
+ 4 * 5, (valueT
) 4, 4);
8237 /* Write 4-byte data. */
8238 md_number_to_chars (p
+ isa_1_descsz
+ 4 * 6,
8239 (valueT
) x86_feature_2_used
, 4);
8241 /* Zero out paddings. */
8242 padding
= feature_2_descsz
- feature_2_descsz_raw
;
8244 memset (p
+ isa_1_descsz
+ 4 * 7, 0, padding
);
8246 /* We probably can't restore the current segment, for there likely
8249 subseg_set (seg
, subseg
);
8254 encoding_length (const fragS
*start_frag
, offsetT start_off
,
8255 const char *frag_now_ptr
)
8257 unsigned int len
= 0;
8259 if (start_frag
!= frag_now
)
8261 const fragS
*fr
= start_frag
;
8266 } while (fr
&& fr
!= frag_now
);
8269 return len
- start_off
+ (frag_now_ptr
- frag_now
->fr_literal
);
8272 /* Return 1 for test, and, cmp, add, sub, inc and dec which may
8273 be macro-fused with conditional jumps. */
8276 maybe_fused_with_jcc_p (void)
8278 /* No RIP address. */
8279 if (i
.base_reg
&& i
.base_reg
->reg_num
== RegIP
)
8282 /* No VEX/EVEX encoding. */
8283 if (is_any_vex_encoding (&i
.tm
))
8286 /* and, add, sub with destination register. */
8287 if ((i
.tm
.base_opcode
>= 0x20 && i
.tm
.base_opcode
<= 0x25)
8288 || i
.tm
.base_opcode
<= 5
8289 || (i
.tm
.base_opcode
>= 0x28 && i
.tm
.base_opcode
<= 0x2d)
8290 || ((i
.tm
.base_opcode
| 3) == 0x83
8291 && ((i
.tm
.extension_opcode
| 1) == 0x5
8292 || i
.tm
.extension_opcode
== 0x0)))
8293 return (i
.types
[1].bitfield
.class == Reg
8294 || i
.types
[1].bitfield
.instance
== Accum
);
8296 /* test, cmp with any register. */
8297 if ((i
.tm
.base_opcode
| 1) == 0x85
8298 || (i
.tm
.base_opcode
| 1) == 0xa9
8299 || ((i
.tm
.base_opcode
| 1) == 0xf7
8300 && i
.tm
.extension_opcode
== 0)
8301 || (i
.tm
.base_opcode
>= 0x38 && i
.tm
.base_opcode
<= 0x3d)
8302 || ((i
.tm
.base_opcode
| 3) == 0x83
8303 && (i
.tm
.extension_opcode
== 0x7)))
8304 return (i
.types
[0].bitfield
.class == Reg
8305 || i
.types
[0].bitfield
.instance
== Accum
8306 || i
.types
[1].bitfield
.class == Reg
8307 || i
.types
[1].bitfield
.instance
== Accum
);
8309 /* inc, dec with any register. */
8310 if ((i
.tm
.cpu_flags
.bitfield
.cpuno64
8311 && (i
.tm
.base_opcode
| 0xf) == 0x4f)
8312 || ((i
.tm
.base_opcode
| 1) == 0xff
8313 && i
.tm
.extension_opcode
<= 0x1))
8314 return (i
.types
[0].bitfield
.class == Reg
8315 || i
.types
[0].bitfield
.instance
== Accum
);
8320 /* Return 1 if a FUSED_JCC_PADDING frag should be generated. */
8323 add_fused_jcc_padding_frag_p (void)
8325 /* NB: Don't work with COND_JUMP86 without i386. */
8326 if (!align_branch_power
8327 || now_seg
== absolute_section
8328 || !cpu_arch_flags
.bitfield
.cpui386
8329 || !(align_branch
& align_branch_fused_bit
))
8332 if (maybe_fused_with_jcc_p ())
8334 if (last_insn
.kind
== last_insn_other
8335 || last_insn
.seg
!= now_seg
)
8338 as_warn_where (last_insn
.file
, last_insn
.line
,
8339 _("`%s` skips -malign-branch-boundary on `%s`"),
8340 last_insn
.name
, i
.tm
.name
);
8346 /* Return 1 if a BRANCH_PREFIX frag should be generated. */
8349 add_branch_prefix_frag_p (void)
8351 /* NB: Don't work with COND_JUMP86 without i386. Don't add prefix
8352 to PadLock instructions since they include prefixes in opcode. */
8353 if (!align_branch_power
8354 || !align_branch_prefix_size
8355 || now_seg
== absolute_section
8356 || i
.tm
.cpu_flags
.bitfield
.cpupadlock
8357 || !cpu_arch_flags
.bitfield
.cpui386
)
8360 /* Don't add prefix if it is a prefix or there is no operand in case
8361 that segment prefix is special. */
8362 if (!i
.operands
|| i
.tm
.opcode_modifier
.isprefix
)
8365 if (last_insn
.kind
== last_insn_other
8366 || last_insn
.seg
!= now_seg
)
8370 as_warn_where (last_insn
.file
, last_insn
.line
,
8371 _("`%s` skips -malign-branch-boundary on `%s`"),
8372 last_insn
.name
, i
.tm
.name
);
8377 /* Return 1 if a BRANCH_PADDING frag should be generated. */
8380 add_branch_padding_frag_p (enum align_branch_kind
*branch_p
)
8384 /* NB: Don't work with COND_JUMP86 without i386. */
8385 if (!align_branch_power
8386 || now_seg
== absolute_section
8387 || !cpu_arch_flags
.bitfield
.cpui386
)
8392 /* Check for jcc and direct jmp. */
8393 if (i
.tm
.opcode_modifier
.jump
== JUMP
)
8395 if (i
.tm
.base_opcode
== JUMP_PC_RELATIVE
)
8397 *branch_p
= align_branch_jmp
;
8398 add_padding
= align_branch
& align_branch_jmp_bit
;
8402 *branch_p
= align_branch_jcc
;
8403 if ((align_branch
& align_branch_jcc_bit
))
8407 else if (is_any_vex_encoding (&i
.tm
))
8409 else if ((i
.tm
.base_opcode
| 1) == 0xc3)
8412 *branch_p
= align_branch_ret
;
8413 if ((align_branch
& align_branch_ret_bit
))
8418 /* Check for indirect jmp, direct and indirect calls. */
8419 if (i
.tm
.base_opcode
== 0xe8)
8422 *branch_p
= align_branch_call
;
8423 if ((align_branch
& align_branch_call_bit
))
8426 else if (i
.tm
.base_opcode
== 0xff
8427 && (i
.tm
.extension_opcode
== 2
8428 || i
.tm
.extension_opcode
== 4))
8430 /* Indirect call and jmp. */
8431 *branch_p
= align_branch_indirect
;
8432 if ((align_branch
& align_branch_indirect_bit
))
8439 && (i
.op
[0].disps
->X_op
== O_symbol
8440 || (i
.op
[0].disps
->X_op
== O_subtract
8441 && i
.op
[0].disps
->X_op_symbol
== GOT_symbol
)))
8443 symbolS
*s
= i
.op
[0].disps
->X_add_symbol
;
8444 /* No padding to call to global or undefined tls_get_addr. */
8445 if ((S_IS_EXTERNAL (s
) || !S_IS_DEFINED (s
))
8446 && strcmp (S_GET_NAME (s
), tls_get_addr
) == 0)
8452 && last_insn
.kind
!= last_insn_other
8453 && last_insn
.seg
== now_seg
)
8456 as_warn_where (last_insn
.file
, last_insn
.line
,
8457 _("`%s` skips -malign-branch-boundary on `%s`"),
8458 last_insn
.name
, i
.tm
.name
);
8468 fragS
*insn_start_frag
;
8469 offsetT insn_start_off
;
8470 fragS
*fragP
= NULL
;
8471 enum align_branch_kind branch
= align_branch_none
;
8473 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8474 if (IS_ELF
&& x86_used_note
)
8476 if (i
.tm
.cpu_flags
.bitfield
.cpucmov
)
8477 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_CMOV
;
8478 if (i
.tm
.cpu_flags
.bitfield
.cpusse
)
8479 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSE
;
8480 if (i
.tm
.cpu_flags
.bitfield
.cpusse2
)
8481 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSE2
;
8482 if (i
.tm
.cpu_flags
.bitfield
.cpusse3
)
8483 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSE3
;
8484 if (i
.tm
.cpu_flags
.bitfield
.cpussse3
)
8485 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSSE3
;
8486 if (i
.tm
.cpu_flags
.bitfield
.cpusse4_1
)
8487 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSE4_1
;
8488 if (i
.tm
.cpu_flags
.bitfield
.cpusse4_2
)
8489 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_SSE4_2
;
8490 if (i
.tm
.cpu_flags
.bitfield
.cpuavx
)
8491 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX
;
8492 if (i
.tm
.cpu_flags
.bitfield
.cpuavx2
)
8493 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX2
;
8494 if (i
.tm
.cpu_flags
.bitfield
.cpufma
)
8495 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_FMA
;
8496 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512f
)
8497 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512F
;
8498 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512cd
)
8499 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512CD
;
8500 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512er
)
8501 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512ER
;
8502 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512pf
)
8503 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512PF
;
8504 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512vl
)
8505 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512VL
;
8506 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512dq
)
8507 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512DQ
;
8508 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512bw
)
8509 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512BW
;
8510 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_4fmaps
)
8511 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS
;
8512 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_4vnniw
)
8513 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW
;
8514 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_bitalg
)
8515 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_BITALG
;
8516 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512ifma
)
8517 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_IFMA
;
8518 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512vbmi
)
8519 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI
;
8520 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_vbmi2
)
8521 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2
;
8522 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_vnni
)
8523 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_VNNI
;
8524 if (i
.tm
.cpu_flags
.bitfield
.cpuavx512_bf16
)
8525 x86_isa_1_used
|= GNU_PROPERTY_X86_ISA_1_AVX512_BF16
;
8527 if (i
.tm
.cpu_flags
.bitfield
.cpu8087
8528 || i
.tm
.cpu_flags
.bitfield
.cpu287
8529 || i
.tm
.cpu_flags
.bitfield
.cpu387
8530 || i
.tm
.cpu_flags
.bitfield
.cpu687
8531 || i
.tm
.cpu_flags
.bitfield
.cpufisttp
)
8532 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_X87
;
8534 || i
.tm
.base_opcode
== 0xf77 /* emms */
8535 || i
.tm
.base_opcode
== 0xf0e /* femms */)
8536 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_MMX
;
8538 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_XMM
;
8540 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_YMM
;
8542 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_ZMM
;
8543 if (i
.tm
.cpu_flags
.bitfield
.cpufxsr
)
8544 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_FXSR
;
8545 if (i
.tm
.cpu_flags
.bitfield
.cpuxsave
)
8546 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_XSAVE
;
8547 if (i
.tm
.cpu_flags
.bitfield
.cpuxsaveopt
)
8548 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT
;
8549 if (i
.tm
.cpu_flags
.bitfield
.cpuxsavec
)
8550 x86_feature_2_used
|= GNU_PROPERTY_X86_FEATURE_2_XSAVEC
;
8554 /* Tie dwarf2 debug info to the address at the start of the insn.
8555 We can't do this after the insn has been output as the current
8556 frag may have been closed off. eg. by frag_var. */
8557 dwarf2_emit_insn (0);
8559 insn_start_frag
= frag_now
;
8560 insn_start_off
= frag_now_fix ();
8562 if (add_branch_padding_frag_p (&branch
))
8565 /* Branch can be 8 bytes. Leave some room for prefixes. */
8566 unsigned int max_branch_padding_size
= 14;
8568 /* Align section to boundary. */
8569 record_alignment (now_seg
, align_branch_power
);
8571 /* Make room for padding. */
8572 frag_grow (max_branch_padding_size
);
8574 /* Start of the padding. */
8579 frag_var (rs_machine_dependent
, max_branch_padding_size
, 0,
8580 ENCODE_RELAX_STATE (BRANCH_PADDING
, 0),
8583 fragP
->tc_frag_data
.branch_type
= branch
;
8584 fragP
->tc_frag_data
.max_bytes
= max_branch_padding_size
;
8588 if (i
.tm
.opcode_modifier
.jump
== JUMP
)
8590 else if (i
.tm
.opcode_modifier
.jump
== JUMP_BYTE
8591 || i
.tm
.opcode_modifier
.jump
== JUMP_DWORD
)
8593 else if (i
.tm
.opcode_modifier
.jump
== JUMP_INTERSEGMENT
)
8594 output_interseg_jump ();
8597 /* Output normal instructions here. */
8601 unsigned int prefix
;
8604 && (i
.tm
.base_opcode
== 0xfaee8
8605 || i
.tm
.base_opcode
== 0xfaef0
8606 || i
.tm
.base_opcode
== 0xfaef8))
8608 /* Encode lfence, mfence, and sfence as
8609 f0 83 04 24 00 lock addl $0x0, (%{re}sp). */
8610 offsetT val
= 0x240483f0ULL
;
8612 md_number_to_chars (p
, val
, 5);
8616 /* Some processors fail on LOCK prefix. This options makes
8617 assembler ignore LOCK prefix and serves as a workaround. */
8618 if (omit_lock_prefix
)
8620 if (i
.tm
.base_opcode
== LOCK_PREFIX_OPCODE
)
8622 i
.prefix
[LOCK_PREFIX
] = 0;
8626 /* Skip if this is a branch. */
8628 else if (add_fused_jcc_padding_frag_p ())
8630 /* Make room for padding. */
8631 frag_grow (MAX_FUSED_JCC_PADDING_SIZE
);
8636 frag_var (rs_machine_dependent
, MAX_FUSED_JCC_PADDING_SIZE
, 0,
8637 ENCODE_RELAX_STATE (FUSED_JCC_PADDING
, 0),
8640 fragP
->tc_frag_data
.branch_type
= align_branch_fused
;
8641 fragP
->tc_frag_data
.max_bytes
= MAX_FUSED_JCC_PADDING_SIZE
;
8643 else if (add_branch_prefix_frag_p ())
8645 unsigned int max_prefix_size
= align_branch_prefix_size
;
8647 /* Make room for padding. */
8648 frag_grow (max_prefix_size
);
8653 frag_var (rs_machine_dependent
, max_prefix_size
, 0,
8654 ENCODE_RELAX_STATE (BRANCH_PREFIX
, 0),
8657 fragP
->tc_frag_data
.max_bytes
= max_prefix_size
;
8660 /* Since the VEX/EVEX prefix contains the implicit prefix, we
8661 don't need the explicit prefix. */
8662 if (!i
.tm
.opcode_modifier
.vex
&& !i
.tm
.opcode_modifier
.evex
)
8664 switch (i
.tm
.opcode_length
)
8667 if (i
.tm
.base_opcode
& 0xff000000)
8669 prefix
= (i
.tm
.base_opcode
>> 24) & 0xff;
8670 if (!i
.tm
.cpu_flags
.bitfield
.cpupadlock
8671 || prefix
!= REPE_PREFIX_OPCODE
8672 || (i
.prefix
[REP_PREFIX
] != REPE_PREFIX_OPCODE
))
8673 add_prefix (prefix
);
8677 if ((i
.tm
.base_opcode
& 0xff0000) != 0)
8679 prefix
= (i
.tm
.base_opcode
>> 16) & 0xff;
8680 add_prefix (prefix
);
8686 /* Check for pseudo prefixes. */
8687 as_bad_where (insn_start_frag
->fr_file
,
8688 insn_start_frag
->fr_line
,
8689 _("pseudo prefix without instruction"));
8695 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
8696 /* For x32, add a dummy REX_OPCODE prefix for mov/add with
8697 R_X86_64_GOTTPOFF relocation so that linker can safely
8698 perform IE->LE optimization. A dummy REX_OPCODE prefix
8699 is also needed for lea with R_X86_64_GOTPC32_TLSDESC
8700 relocation for GDesc -> IE/LE optimization. */
8701 if (x86_elf_abi
== X86_64_X32_ABI
8703 && (i
.reloc
[0] == BFD_RELOC_X86_64_GOTTPOFF
8704 || i
.reloc
[0] == BFD_RELOC_X86_64_GOTPC32_TLSDESC
)
8705 && i
.prefix
[REX_PREFIX
] == 0)
8706 add_prefix (REX_OPCODE
);
8709 /* The prefix bytes. */
8710 for (j
= ARRAY_SIZE (i
.prefix
), q
= i
.prefix
; j
> 0; j
--, q
++)
8712 FRAG_APPEND_1_CHAR (*q
);
8716 for (j
= 0, q
= i
.prefix
; j
< ARRAY_SIZE (i
.prefix
); j
++, q
++)
8721 /* REX byte is encoded in VEX prefix. */
8725 FRAG_APPEND_1_CHAR (*q
);
8728 /* There should be no other prefixes for instructions
8733 /* For EVEX instructions i.vrex should become 0 after
8734 build_evex_prefix. For VEX instructions upper 16 registers
8735 aren't available, so VREX should be 0. */
8738 /* Now the VEX prefix. */
8739 p
= frag_more (i
.vex
.length
);
8740 for (j
= 0; j
< i
.vex
.length
; j
++)
8741 p
[j
] = i
.vex
.bytes
[j
];
8744 /* Now the opcode; be careful about word order here! */
8745 if (i
.tm
.opcode_length
== 1)
8747 FRAG_APPEND_1_CHAR (i
.tm
.base_opcode
);
8751 switch (i
.tm
.opcode_length
)
8755 *p
++ = (i
.tm
.base_opcode
>> 24) & 0xff;
8756 *p
++ = (i
.tm
.base_opcode
>> 16) & 0xff;
8760 *p
++ = (i
.tm
.base_opcode
>> 16) & 0xff;
8770 /* Put out high byte first: can't use md_number_to_chars! */
8771 *p
++ = (i
.tm
.base_opcode
>> 8) & 0xff;
8772 *p
= i
.tm
.base_opcode
& 0xff;
8775 /* Now the modrm byte and sib byte (if present). */
8776 if (i
.tm
.opcode_modifier
.modrm
)
8778 FRAG_APPEND_1_CHAR ((i
.rm
.regmem
<< 0
8781 /* If i.rm.regmem == ESP (4)
8782 && i.rm.mode != (Register mode)
8784 ==> need second modrm byte. */
8785 if (i
.rm
.regmem
== ESCAPE_TO_TWO_BYTE_ADDRESSING
8787 && !(i
.base_reg
&& i
.base_reg
->reg_type
.bitfield
.word
))
8788 FRAG_APPEND_1_CHAR ((i
.sib
.base
<< 0
8790 | i
.sib
.scale
<< 6));
8793 if (i
.disp_operands
)
8794 output_disp (insn_start_frag
, insn_start_off
);
8797 output_imm (insn_start_frag
, insn_start_off
);
8800 * frag_now_fix () returning plain abs_section_offset when we're in the
8801 * absolute section, and abs_section_offset not getting updated as data
8802 * gets added to the frag breaks the logic below.
8804 if (now_seg
!= absolute_section
)
8806 j
= encoding_length (insn_start_frag
, insn_start_off
, frag_more (0));
8808 as_warn (_("instruction length of %u bytes exceeds the limit of 15"),
8812 /* NB: Don't add prefix with GOTPC relocation since
8813 output_disp() above depends on the fixed encoding
8814 length. Can't add prefix with TLS relocation since
8815 it breaks TLS linker optimization. */
8816 unsigned int max
= i
.has_gotpc_tls_reloc
? 0 : 15 - j
;
8817 /* Prefix count on the current instruction. */
8818 unsigned int count
= i
.vex
.length
;
8820 for (k
= 0; k
< ARRAY_SIZE (i
.prefix
); k
++)
8821 /* REX byte is encoded in VEX/EVEX prefix. */
8822 if (i
.prefix
[k
] && (k
!= REX_PREFIX
|| !i
.vex
.length
))
8825 /* Count prefixes for extended opcode maps. */
8827 switch (i
.tm
.opcode_length
)
8830 if (((i
.tm
.base_opcode
>> 16) & 0xff) == 0xf)
8833 switch ((i
.tm
.base_opcode
>> 8) & 0xff)
8845 if (((i
.tm
.base_opcode
>> 8) & 0xff) == 0xf)
8854 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
)
8857 /* Set the maximum prefix size in BRANCH_PREFIX
8859 if (fragP
->tc_frag_data
.max_bytes
> max
)
8860 fragP
->tc_frag_data
.max_bytes
= max
;
8861 if (fragP
->tc_frag_data
.max_bytes
> count
)
8862 fragP
->tc_frag_data
.max_bytes
-= count
;
8864 fragP
->tc_frag_data
.max_bytes
= 0;
8868 /* Remember the maximum prefix size in FUSED_JCC_PADDING
8870 unsigned int max_prefix_size
;
8871 if (align_branch_prefix_size
> max
)
8872 max_prefix_size
= max
;
8874 max_prefix_size
= align_branch_prefix_size
;
8875 if (max_prefix_size
> count
)
8876 fragP
->tc_frag_data
.max_prefix_length
8877 = max_prefix_size
- count
;
8880 /* Use existing segment prefix if possible. Use CS
8881 segment prefix in 64-bit mode. In 32-bit mode, use SS
8882 segment prefix with ESP/EBP base register and use DS
8883 segment prefix without ESP/EBP base register. */
8884 if (i
.prefix
[SEG_PREFIX
])
8885 fragP
->tc_frag_data
.default_prefix
= i
.prefix
[SEG_PREFIX
];
8886 else if (flag_code
== CODE_64BIT
)
8887 fragP
->tc_frag_data
.default_prefix
= CS_PREFIX_OPCODE
;
8889 && (i
.base_reg
->reg_num
== 4
8890 || i
.base_reg
->reg_num
== 5))
8891 fragP
->tc_frag_data
.default_prefix
= SS_PREFIX_OPCODE
;
8893 fragP
->tc_frag_data
.default_prefix
= DS_PREFIX_OPCODE
;
8898 /* NB: Don't work with COND_JUMP86 without i386. */
8899 if (align_branch_power
8900 && now_seg
!= absolute_section
8901 && cpu_arch_flags
.bitfield
.cpui386
)
8903 /* Terminate each frag so that we can add prefix and check for
8905 frag_wane (frag_now
);
8912 pi ("" /*line*/, &i
);
8914 #endif /* DEBUG386 */
8917 /* Return the size of the displacement operand N. */
8920 disp_size (unsigned int n
)
8924 if (i
.types
[n
].bitfield
.disp64
)
8926 else if (i
.types
[n
].bitfield
.disp8
)
8928 else if (i
.types
[n
].bitfield
.disp16
)
8933 /* Return the size of the immediate operand N. */
8936 imm_size (unsigned int n
)
8939 if (i
.types
[n
].bitfield
.imm64
)
8941 else if (i
.types
[n
].bitfield
.imm8
|| i
.types
[n
].bitfield
.imm8s
)
8943 else if (i
.types
[n
].bitfield
.imm16
)
8949 output_disp (fragS
*insn_start_frag
, offsetT insn_start_off
)
8954 for (n
= 0; n
< i
.operands
; n
++)
8956 if (operand_type_check (i
.types
[n
], disp
))
8958 if (i
.op
[n
].disps
->X_op
== O_constant
)
8960 int size
= disp_size (n
);
8961 offsetT val
= i
.op
[n
].disps
->X_add_number
;
8963 val
= offset_in_range (val
>> (size
== 1 ? i
.memshift
: 0),
8965 p
= frag_more (size
);
8966 md_number_to_chars (p
, val
, size
);
8970 enum bfd_reloc_code_real reloc_type
;
8971 int size
= disp_size (n
);
8972 int sign
= i
.types
[n
].bitfield
.disp32s
;
8973 int pcrel
= (i
.flags
[n
] & Operand_PCrel
) != 0;
8976 /* We can't have 8 bit displacement here. */
8977 gas_assert (!i
.types
[n
].bitfield
.disp8
);
8979 /* The PC relative address is computed relative
8980 to the instruction boundary, so in case immediate
8981 fields follows, we need to adjust the value. */
8982 if (pcrel
&& i
.imm_operands
)
8987 for (n1
= 0; n1
< i
.operands
; n1
++)
8988 if (operand_type_check (i
.types
[n1
], imm
))
8990 /* Only one immediate is allowed for PC
8991 relative address. */
8992 gas_assert (sz
== 0);
8994 i
.op
[n
].disps
->X_add_number
-= sz
;
8996 /* We should find the immediate. */
8997 gas_assert (sz
!= 0);
9000 p
= frag_more (size
);
9001 reloc_type
= reloc (size
, pcrel
, sign
, i
.reloc
[n
]);
9003 && GOT_symbol
== i
.op
[n
].disps
->X_add_symbol
9004 && (((reloc_type
== BFD_RELOC_32
9005 || reloc_type
== BFD_RELOC_X86_64_32S
9006 || (reloc_type
== BFD_RELOC_64
9008 && (i
.op
[n
].disps
->X_op
== O_symbol
9009 || (i
.op
[n
].disps
->X_op
== O_add
9010 && ((symbol_get_value_expression
9011 (i
.op
[n
].disps
->X_op_symbol
)->X_op
)
9013 || reloc_type
== BFD_RELOC_32_PCREL
))
9017 reloc_type
= BFD_RELOC_386_GOTPC
;
9018 i
.has_gotpc_tls_reloc
= TRUE
;
9019 i
.op
[n
].imms
->X_add_number
+=
9020 encoding_length (insn_start_frag
, insn_start_off
, p
);
9022 else if (reloc_type
== BFD_RELOC_64
)
9023 reloc_type
= BFD_RELOC_X86_64_GOTPC64
;
9025 /* Don't do the adjustment for x86-64, as there
9026 the pcrel addressing is relative to the _next_
9027 insn, and that is taken care of in other code. */
9028 reloc_type
= BFD_RELOC_X86_64_GOTPC32
;
9030 else if (align_branch_power
)
9034 case BFD_RELOC_386_TLS_GD
:
9035 case BFD_RELOC_386_TLS_LDM
:
9036 case BFD_RELOC_386_TLS_IE
:
9037 case BFD_RELOC_386_TLS_IE_32
:
9038 case BFD_RELOC_386_TLS_GOTIE
:
9039 case BFD_RELOC_386_TLS_GOTDESC
:
9040 case BFD_RELOC_386_TLS_DESC_CALL
:
9041 case BFD_RELOC_X86_64_TLSGD
:
9042 case BFD_RELOC_X86_64_TLSLD
:
9043 case BFD_RELOC_X86_64_GOTTPOFF
:
9044 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
9045 case BFD_RELOC_X86_64_TLSDESC_CALL
:
9046 i
.has_gotpc_tls_reloc
= TRUE
;
9051 fixP
= fix_new_exp (frag_now
, p
- frag_now
->fr_literal
,
9052 size
, i
.op
[n
].disps
, pcrel
,
9054 /* Check for "call/jmp *mem", "mov mem, %reg",
9055 "test %reg, mem" and "binop mem, %reg" where binop
9056 is one of adc, add, and, cmp, or, sbb, sub, xor
9057 instructions without data prefix. Always generate
9058 R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */
9059 if (i
.prefix
[DATA_PREFIX
] == 0
9060 && (generate_relax_relocations
9063 && i
.rm
.regmem
== 5))
9065 || (i
.rm
.mode
== 0 && i
.rm
.regmem
== 5))
9066 && ((i
.operands
== 1
9067 && i
.tm
.base_opcode
== 0xff
9068 && (i
.rm
.reg
== 2 || i
.rm
.reg
== 4))
9070 && (i
.tm
.base_opcode
== 0x8b
9071 || i
.tm
.base_opcode
== 0x85
9072 || (i
.tm
.base_opcode
& 0xc7) == 0x03))))
9076 fixP
->fx_tcbit
= i
.rex
!= 0;
9078 && (i
.base_reg
->reg_num
== RegIP
))
9079 fixP
->fx_tcbit2
= 1;
9082 fixP
->fx_tcbit2
= 1;
9090 output_imm (fragS
*insn_start_frag
, offsetT insn_start_off
)
9095 for (n
= 0; n
< i
.operands
; n
++)
9097 /* Skip SAE/RC Imm operand in EVEX. They are already handled. */
9098 if (i
.rounding
&& (int) n
== i
.rounding
->operand
)
9101 if (operand_type_check (i
.types
[n
], imm
))
9103 if (i
.op
[n
].imms
->X_op
== O_constant
)
9105 int size
= imm_size (n
);
9108 val
= offset_in_range (i
.op
[n
].imms
->X_add_number
,
9110 p
= frag_more (size
);
9111 md_number_to_chars (p
, val
, size
);
9115 /* Not absolute_section.
9116 Need a 32-bit fixup (don't support 8bit
9117 non-absolute imms). Try to support other
9119 enum bfd_reloc_code_real reloc_type
;
9120 int size
= imm_size (n
);
9123 if (i
.types
[n
].bitfield
.imm32s
9124 && (i
.suffix
== QWORD_MNEM_SUFFIX
9125 || (!i
.suffix
&& i
.tm
.opcode_modifier
.no_lsuf
)))
9130 p
= frag_more (size
);
9131 reloc_type
= reloc (size
, 0, sign
, i
.reloc
[n
]);
9133 /* This is tough to explain. We end up with this one if we
9134 * have operands that look like
9135 * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to
9136 * obtain the absolute address of the GOT, and it is strongly
9137 * preferable from a performance point of view to avoid using
9138 * a runtime relocation for this. The actual sequence of
9139 * instructions often look something like:
9144 * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx
9146 * The call and pop essentially return the absolute address
9147 * of the label .L66 and store it in %ebx. The linker itself
9148 * will ultimately change the first operand of the addl so
9149 * that %ebx points to the GOT, but to keep things simple, the
9150 * .o file must have this operand set so that it generates not
9151 * the absolute address of .L66, but the absolute address of
9152 * itself. This allows the linker itself simply treat a GOTPC
9153 * relocation as asking for a pcrel offset to the GOT to be
9154 * added in, and the addend of the relocation is stored in the
9155 * operand field for the instruction itself.
9157 * Our job here is to fix the operand so that it would add
9158 * the correct offset so that %ebx would point to itself. The
9159 * thing that is tricky is that .-.L66 will point to the
9160 * beginning of the instruction, so we need to further modify
9161 * the operand so that it will point to itself. There are
9162 * other cases where you have something like:
9164 * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66]
9166 * and here no correction would be required. Internally in
9167 * the assembler we treat operands of this form as not being
9168 * pcrel since the '.' is explicitly mentioned, and I wonder
9169 * whether it would simplify matters to do it this way. Who
9170 * knows. In earlier versions of the PIC patches, the
9171 * pcrel_adjust field was used to store the correction, but
9172 * since the expression is not pcrel, I felt it would be
9173 * confusing to do it this way. */
9175 if ((reloc_type
== BFD_RELOC_32
9176 || reloc_type
== BFD_RELOC_X86_64_32S
9177 || reloc_type
== BFD_RELOC_64
)
9179 && GOT_symbol
== i
.op
[n
].imms
->X_add_symbol
9180 && (i
.op
[n
].imms
->X_op
== O_symbol
9181 || (i
.op
[n
].imms
->X_op
== O_add
9182 && ((symbol_get_value_expression
9183 (i
.op
[n
].imms
->X_op_symbol
)->X_op
)
9187 reloc_type
= BFD_RELOC_386_GOTPC
;
9189 reloc_type
= BFD_RELOC_X86_64_GOTPC32
;
9191 reloc_type
= BFD_RELOC_X86_64_GOTPC64
;
9192 i
.has_gotpc_tls_reloc
= TRUE
;
9193 i
.op
[n
].imms
->X_add_number
+=
9194 encoding_length (insn_start_frag
, insn_start_off
, p
);
9196 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, size
,
9197 i
.op
[n
].imms
, 0, reloc_type
);
9203 /* x86_cons_fix_new is called via the expression parsing code when a
9204 reloc is needed. We use this hook to get the correct .got reloc. */
9205 static int cons_sign
= -1;
9208 x86_cons_fix_new (fragS
*frag
, unsigned int off
, unsigned int len
,
9209 expressionS
*exp
, bfd_reloc_code_real_type r
)
9211 r
= reloc (len
, 0, cons_sign
, r
);
9214 if (exp
->X_op
== O_secrel
)
9216 exp
->X_op
= O_symbol
;
9217 r
= BFD_RELOC_32_SECREL
;
9221 fix_new_exp (frag
, off
, len
, exp
, 0, r
);
9224 /* Export the ABI address size for use by TC_ADDRESS_BYTES for the
9225 purpose of the `.dc.a' internal pseudo-op. */
9228 x86_address_bytes (void)
9230 if ((stdoutput
->arch_info
->mach
& bfd_mach_x64_32
))
9232 return stdoutput
->arch_info
->bits_per_address
/ 8;
9235 #if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \
9237 # define lex_got(reloc, adjust, types) NULL
9239 /* Parse operands of the form
9240 <symbol>@GOTOFF+<nnn>
9241 and similar .plt or .got references.
9243 If we find one, set up the correct relocation in RELOC and copy the
9244 input string, minus the `@GOTOFF' into a malloc'd buffer for
9245 parsing by the calling routine. Return this buffer, and if ADJUST
9246 is non-null set it to the length of the string we removed from the
9247 input line. Otherwise return NULL. */
9249 lex_got (enum bfd_reloc_code_real
*rel
,
9251 i386_operand_type
*types
)
9253 /* Some of the relocations depend on the size of what field is to
9254 be relocated. But in our callers i386_immediate and i386_displacement
9255 we don't yet know the operand size (this will be set by insn
9256 matching). Hence we record the word32 relocation here,
9257 and adjust the reloc according to the real size in reloc(). */
9258 static const struct {
9261 const enum bfd_reloc_code_real rel
[2];
9262 const i386_operand_type types64
;
9264 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9265 { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32
,
9267 OPERAND_TYPE_IMM32_64
},
9269 { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real
,
9270 BFD_RELOC_X86_64_PLTOFF64
},
9271 OPERAND_TYPE_IMM64
},
9272 { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32
,
9273 BFD_RELOC_X86_64_PLT32
},
9274 OPERAND_TYPE_IMM32_32S_DISP32
},
9275 { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real
,
9276 BFD_RELOC_X86_64_GOTPLT64
},
9277 OPERAND_TYPE_IMM64_DISP64
},
9278 { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF
,
9279 BFD_RELOC_X86_64_GOTOFF64
},
9280 OPERAND_TYPE_IMM64_DISP64
},
9281 { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real
,
9282 BFD_RELOC_X86_64_GOTPCREL
},
9283 OPERAND_TYPE_IMM32_32S_DISP32
},
9284 { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD
,
9285 BFD_RELOC_X86_64_TLSGD
},
9286 OPERAND_TYPE_IMM32_32S_DISP32
},
9287 { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM
,
9288 _dummy_first_bfd_reloc_code_real
},
9289 OPERAND_TYPE_NONE
},
9290 { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real
,
9291 BFD_RELOC_X86_64_TLSLD
},
9292 OPERAND_TYPE_IMM32_32S_DISP32
},
9293 { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32
,
9294 BFD_RELOC_X86_64_GOTTPOFF
},
9295 OPERAND_TYPE_IMM32_32S_DISP32
},
9296 { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32
,
9297 BFD_RELOC_X86_64_TPOFF32
},
9298 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
9299 { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE
,
9300 _dummy_first_bfd_reloc_code_real
},
9301 OPERAND_TYPE_NONE
},
9302 { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32
,
9303 BFD_RELOC_X86_64_DTPOFF32
},
9304 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
9305 { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE
,
9306 _dummy_first_bfd_reloc_code_real
},
9307 OPERAND_TYPE_NONE
},
9308 { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE
,
9309 _dummy_first_bfd_reloc_code_real
},
9310 OPERAND_TYPE_NONE
},
9311 { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32
,
9312 BFD_RELOC_X86_64_GOT32
},
9313 OPERAND_TYPE_IMM32_32S_64_DISP32
},
9314 { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC
,
9315 BFD_RELOC_X86_64_GOTPC32_TLSDESC
},
9316 OPERAND_TYPE_IMM32_32S_DISP32
},
9317 { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL
,
9318 BFD_RELOC_X86_64_TLSDESC_CALL
},
9319 OPERAND_TYPE_IMM32_32S_DISP32
},
9324 #if defined (OBJ_MAYBE_ELF)
9329 for (cp
= input_line_pointer
; *cp
!= '@'; cp
++)
9330 if (is_end_of_line
[(unsigned char) *cp
] || *cp
== ',')
9333 for (j
= 0; j
< ARRAY_SIZE (gotrel
); j
++)
9335 int len
= gotrel
[j
].len
;
9336 if (strncasecmp (cp
+ 1, gotrel
[j
].str
, len
) == 0)
9338 if (gotrel
[j
].rel
[object_64bit
] != 0)
9341 char *tmpbuf
, *past_reloc
;
9343 *rel
= gotrel
[j
].rel
[object_64bit
];
9347 if (flag_code
!= CODE_64BIT
)
9349 types
->bitfield
.imm32
= 1;
9350 types
->bitfield
.disp32
= 1;
9353 *types
= gotrel
[j
].types64
;
9356 if (j
!= 0 && GOT_symbol
== NULL
)
9357 GOT_symbol
= symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME
);
9359 /* The length of the first part of our input line. */
9360 first
= cp
- input_line_pointer
;
9362 /* The second part goes from after the reloc token until
9363 (and including) an end_of_line char or comma. */
9364 past_reloc
= cp
+ 1 + len
;
9366 while (!is_end_of_line
[(unsigned char) *cp
] && *cp
!= ',')
9368 second
= cp
+ 1 - past_reloc
;
9370 /* Allocate and copy string. The trailing NUL shouldn't
9371 be necessary, but be safe. */
9372 tmpbuf
= XNEWVEC (char, first
+ second
+ 2);
9373 memcpy (tmpbuf
, input_line_pointer
, first
);
9374 if (second
!= 0 && *past_reloc
!= ' ')
9375 /* Replace the relocation token with ' ', so that
9376 errors like foo@GOTOFF1 will be detected. */
9377 tmpbuf
[first
++] = ' ';
9379 /* Increment length by 1 if the relocation token is
9384 memcpy (tmpbuf
+ first
, past_reloc
, second
);
9385 tmpbuf
[first
+ second
] = '\0';
9389 as_bad (_("@%s reloc is not supported with %d-bit output format"),
9390 gotrel
[j
].str
, 1 << (5 + object_64bit
));
9395 /* Might be a symbol version string. Don't as_bad here. */
9404 /* Parse operands of the form
9405 <symbol>@SECREL32+<nnn>
9407 If we find one, set up the correct relocation in RELOC and copy the
9408 input string, minus the `@SECREL32' into a malloc'd buffer for
9409 parsing by the calling routine. Return this buffer, and if ADJUST
9410 is non-null set it to the length of the string we removed from the
9411 input line. Otherwise return NULL.
9413 This function is copied from the ELF version above adjusted for PE targets. */
9416 lex_got (enum bfd_reloc_code_real
*rel ATTRIBUTE_UNUSED
,
9417 int *adjust ATTRIBUTE_UNUSED
,
9418 i386_operand_type
*types
)
9424 const enum bfd_reloc_code_real rel
[2];
9425 const i386_operand_type types64
;
9429 { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL
,
9430 BFD_RELOC_32_SECREL
},
9431 OPERAND_TYPE_IMM32_32S_64_DISP32_64
},
9437 for (cp
= input_line_pointer
; *cp
!= '@'; cp
++)
9438 if (is_end_of_line
[(unsigned char) *cp
] || *cp
== ',')
9441 for (j
= 0; j
< ARRAY_SIZE (gotrel
); j
++)
9443 int len
= gotrel
[j
].len
;
9445 if (strncasecmp (cp
+ 1, gotrel
[j
].str
, len
) == 0)
9447 if (gotrel
[j
].rel
[object_64bit
] != 0)
9450 char *tmpbuf
, *past_reloc
;
9452 *rel
= gotrel
[j
].rel
[object_64bit
];
9458 if (flag_code
!= CODE_64BIT
)
9460 types
->bitfield
.imm32
= 1;
9461 types
->bitfield
.disp32
= 1;
9464 *types
= gotrel
[j
].types64
;
9467 /* The length of the first part of our input line. */
9468 first
= cp
- input_line_pointer
;
9470 /* The second part goes from after the reloc token until
9471 (and including) an end_of_line char or comma. */
9472 past_reloc
= cp
+ 1 + len
;
9474 while (!is_end_of_line
[(unsigned char) *cp
] && *cp
!= ',')
9476 second
= cp
+ 1 - past_reloc
;
9478 /* Allocate and copy string. The trailing NUL shouldn't
9479 be necessary, but be safe. */
9480 tmpbuf
= XNEWVEC (char, first
+ second
+ 2);
9481 memcpy (tmpbuf
, input_line_pointer
, first
);
9482 if (second
!= 0 && *past_reloc
!= ' ')
9483 /* Replace the relocation token with ' ', so that
9484 errors like foo@SECLREL321 will be detected. */
9485 tmpbuf
[first
++] = ' ';
9486 memcpy (tmpbuf
+ first
, past_reloc
, second
);
9487 tmpbuf
[first
+ second
] = '\0';
9491 as_bad (_("@%s reloc is not supported with %d-bit output format"),
9492 gotrel
[j
].str
, 1 << (5 + object_64bit
));
9497 /* Might be a symbol version string. Don't as_bad here. */
9503 bfd_reloc_code_real_type
9504 x86_cons (expressionS
*exp
, int size
)
9506 bfd_reloc_code_real_type got_reloc
= NO_RELOC
;
9508 intel_syntax
= -intel_syntax
;
9511 if (size
== 4 || (object_64bit
&& size
== 8))
9513 /* Handle @GOTOFF and the like in an expression. */
9515 char *gotfree_input_line
;
9518 save
= input_line_pointer
;
9519 gotfree_input_line
= lex_got (&got_reloc
, &adjust
, NULL
);
9520 if (gotfree_input_line
)
9521 input_line_pointer
= gotfree_input_line
;
9525 if (gotfree_input_line
)
9527 /* expression () has merrily parsed up to the end of line,
9528 or a comma - in the wrong buffer. Transfer how far
9529 input_line_pointer has moved to the right buffer. */
9530 input_line_pointer
= (save
9531 + (input_line_pointer
- gotfree_input_line
)
9533 free (gotfree_input_line
);
9534 if (exp
->X_op
== O_constant
9535 || exp
->X_op
== O_absent
9536 || exp
->X_op
== O_illegal
9537 || exp
->X_op
== O_register
9538 || exp
->X_op
== O_big
)
9540 char c
= *input_line_pointer
;
9541 *input_line_pointer
= 0;
9542 as_bad (_("missing or invalid expression `%s'"), save
);
9543 *input_line_pointer
= c
;
9545 else if ((got_reloc
== BFD_RELOC_386_PLT32
9546 || got_reloc
== BFD_RELOC_X86_64_PLT32
)
9547 && exp
->X_op
!= O_symbol
)
9549 char c
= *input_line_pointer
;
9550 *input_line_pointer
= 0;
9551 as_bad (_("invalid PLT expression `%s'"), save
);
9552 *input_line_pointer
= c
;
9559 intel_syntax
= -intel_syntax
;
9562 i386_intel_simplify (exp
);
9568 signed_cons (int size
)
9570 if (flag_code
== CODE_64BIT
)
9578 pe_directive_secrel (int dummy ATTRIBUTE_UNUSED
)
9585 if (exp
.X_op
== O_symbol
)
9586 exp
.X_op
= O_secrel
;
9588 emit_expr (&exp
, 4);
9590 while (*input_line_pointer
++ == ',');
9592 input_line_pointer
--;
9593 demand_empty_rest_of_line ();
9597 /* Handle Vector operations. */
9600 check_VecOperations (char *op_string
, char *op_end
)
9602 const reg_entry
*mask
;
9607 && (op_end
== NULL
|| op_string
< op_end
))
9610 if (*op_string
== '{')
9614 /* Check broadcasts. */
9615 if (strncmp (op_string
, "1to", 3) == 0)
9620 goto duplicated_vec_op
;
9623 if (*op_string
== '8')
9625 else if (*op_string
== '4')
9627 else if (*op_string
== '2')
9629 else if (*op_string
== '1'
9630 && *(op_string
+1) == '6')
9637 as_bad (_("Unsupported broadcast: `%s'"), saved
);
9642 broadcast_op
.type
= bcst_type
;
9643 broadcast_op
.operand
= this_operand
;
9644 broadcast_op
.bytes
= 0;
9645 i
.broadcast
= &broadcast_op
;
9647 /* Check masking operation. */
9648 else if ((mask
= parse_register (op_string
, &end_op
)) != NULL
)
9650 /* k0 can't be used for write mask. */
9651 if (mask
->reg_type
.bitfield
.class != RegMask
|| !mask
->reg_num
)
9653 as_bad (_("`%s%s' can't be used for write mask"),
9654 register_prefix
, mask
->reg_name
);
9660 mask_op
.mask
= mask
;
9661 mask_op
.zeroing
= 0;
9662 mask_op
.operand
= this_operand
;
9668 goto duplicated_vec_op
;
9670 i
.mask
->mask
= mask
;
9672 /* Only "{z}" is allowed here. No need to check
9673 zeroing mask explicitly. */
9674 if (i
.mask
->operand
!= this_operand
)
9676 as_bad (_("invalid write mask `%s'"), saved
);
9683 /* Check zeroing-flag for masking operation. */
9684 else if (*op_string
== 'z')
9688 mask_op
.mask
= NULL
;
9689 mask_op
.zeroing
= 1;
9690 mask_op
.operand
= this_operand
;
9695 if (i
.mask
->zeroing
)
9698 as_bad (_("duplicated `%s'"), saved
);
9702 i
.mask
->zeroing
= 1;
9704 /* Only "{%k}" is allowed here. No need to check mask
9705 register explicitly. */
9706 if (i
.mask
->operand
!= this_operand
)
9708 as_bad (_("invalid zeroing-masking `%s'"),
9717 goto unknown_vec_op
;
9719 if (*op_string
!= '}')
9721 as_bad (_("missing `}' in `%s'"), saved
);
9726 /* Strip whitespace since the addition of pseudo prefixes
9727 changed how the scrubber treats '{'. */
9728 if (is_space_char (*op_string
))
9734 /* We don't know this one. */
9735 as_bad (_("unknown vector operation: `%s'"), saved
);
9739 if (i
.mask
&& i
.mask
->zeroing
&& !i
.mask
->mask
)
9741 as_bad (_("zeroing-masking only allowed with write mask"));
9749 i386_immediate (char *imm_start
)
9751 char *save_input_line_pointer
;
9752 char *gotfree_input_line
;
9755 i386_operand_type types
;
9757 operand_type_set (&types
, ~0);
9759 if (i
.imm_operands
== MAX_IMMEDIATE_OPERANDS
)
9761 as_bad (_("at most %d immediate operands are allowed"),
9762 MAX_IMMEDIATE_OPERANDS
);
9766 exp
= &im_expressions
[i
.imm_operands
++];
9767 i
.op
[this_operand
].imms
= exp
;
9769 if (is_space_char (*imm_start
))
9772 save_input_line_pointer
= input_line_pointer
;
9773 input_line_pointer
= imm_start
;
9775 gotfree_input_line
= lex_got (&i
.reloc
[this_operand
], NULL
, &types
);
9776 if (gotfree_input_line
)
9777 input_line_pointer
= gotfree_input_line
;
9779 exp_seg
= expression (exp
);
9783 /* Handle vector operations. */
9784 if (*input_line_pointer
== '{')
9786 input_line_pointer
= check_VecOperations (input_line_pointer
,
9788 if (input_line_pointer
== NULL
)
9792 if (*input_line_pointer
)
9793 as_bad (_("junk `%s' after expression"), input_line_pointer
);
9795 input_line_pointer
= save_input_line_pointer
;
9796 if (gotfree_input_line
)
9798 free (gotfree_input_line
);
9800 if (exp
->X_op
== O_constant
|| exp
->X_op
== O_register
)
9801 exp
->X_op
= O_illegal
;
9804 return i386_finalize_immediate (exp_seg
, exp
, types
, imm_start
);
9808 i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED
, expressionS
*exp
,
9809 i386_operand_type types
, const char *imm_start
)
9811 if (exp
->X_op
== O_absent
|| exp
->X_op
== O_illegal
|| exp
->X_op
== O_big
)
9814 as_bad (_("missing or invalid immediate expression `%s'"),
9818 else if (exp
->X_op
== O_constant
)
9820 /* Size it properly later. */
9821 i
.types
[this_operand
].bitfield
.imm64
= 1;
9822 /* If not 64bit, sign extend val. */
9823 if (flag_code
!= CODE_64BIT
9824 && (exp
->X_add_number
& ~(((addressT
) 2 << 31) - 1)) == 0)
9826 = (exp
->X_add_number
^ ((addressT
) 1 << 31)) - ((addressT
) 1 << 31);
9828 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
9829 else if (OUTPUT_FLAVOR
== bfd_target_aout_flavour
9830 && exp_seg
!= absolute_section
9831 && exp_seg
!= text_section
9832 && exp_seg
!= data_section
9833 && exp_seg
!= bss_section
9834 && exp_seg
!= undefined_section
9835 && !bfd_is_com_section (exp_seg
))
9837 as_bad (_("unimplemented segment %s in operand"), exp_seg
->name
);
9841 else if (!intel_syntax
&& exp_seg
== reg_section
)
9844 as_bad (_("illegal immediate register operand %s"), imm_start
);
9849 /* This is an address. The size of the address will be
9850 determined later, depending on destination register,
9851 suffix, or the default for the section. */
9852 i
.types
[this_operand
].bitfield
.imm8
= 1;
9853 i
.types
[this_operand
].bitfield
.imm16
= 1;
9854 i
.types
[this_operand
].bitfield
.imm32
= 1;
9855 i
.types
[this_operand
].bitfield
.imm32s
= 1;
9856 i
.types
[this_operand
].bitfield
.imm64
= 1;
9857 i
.types
[this_operand
] = operand_type_and (i
.types
[this_operand
],
9865 i386_scale (char *scale
)
9868 char *save
= input_line_pointer
;
9870 input_line_pointer
= scale
;
9871 val
= get_absolute_expression ();
9876 i
.log2_scale_factor
= 0;
9879 i
.log2_scale_factor
= 1;
9882 i
.log2_scale_factor
= 2;
9885 i
.log2_scale_factor
= 3;
9889 char sep
= *input_line_pointer
;
9891 *input_line_pointer
= '\0';
9892 as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"),
9894 *input_line_pointer
= sep
;
9895 input_line_pointer
= save
;
9899 if (i
.log2_scale_factor
!= 0 && i
.index_reg
== 0)
9901 as_warn (_("scale factor of %d without an index register"),
9902 1 << i
.log2_scale_factor
);
9903 i
.log2_scale_factor
= 0;
9905 scale
= input_line_pointer
;
9906 input_line_pointer
= save
;
9911 i386_displacement (char *disp_start
, char *disp_end
)
9915 char *save_input_line_pointer
;
9916 char *gotfree_input_line
;
9918 i386_operand_type bigdisp
, types
= anydisp
;
9921 if (i
.disp_operands
== MAX_MEMORY_OPERANDS
)
9923 as_bad (_("at most %d displacement operands are allowed"),
9924 MAX_MEMORY_OPERANDS
);
9928 operand_type_set (&bigdisp
, 0);
9930 || i
.types
[this_operand
].bitfield
.baseindex
9931 || (current_templates
->start
->opcode_modifier
.jump
!= JUMP
9932 && current_templates
->start
->opcode_modifier
.jump
!= JUMP_DWORD
))
9934 i386_addressing_mode ();
9935 override
= (i
.prefix
[ADDR_PREFIX
] != 0);
9936 if (flag_code
== CODE_64BIT
)
9940 bigdisp
.bitfield
.disp32s
= 1;
9941 bigdisp
.bitfield
.disp64
= 1;
9944 bigdisp
.bitfield
.disp32
= 1;
9946 else if ((flag_code
== CODE_16BIT
) ^ override
)
9947 bigdisp
.bitfield
.disp16
= 1;
9949 bigdisp
.bitfield
.disp32
= 1;
9953 /* For PC-relative branches, the width of the displacement may be
9954 dependent upon data size, but is never dependent upon address size.
9955 Also make sure to not unintentionally match against a non-PC-relative
9957 static templates aux_templates
;
9958 const insn_template
*t
= current_templates
->start
;
9959 bfd_boolean has_intel64
= FALSE
;
9961 aux_templates
.start
= t
;
9962 while (++t
< current_templates
->end
)
9964 if (t
->opcode_modifier
.jump
9965 != current_templates
->start
->opcode_modifier
.jump
)
9967 if (t
->opcode_modifier
.intel64
)
9970 if (t
< current_templates
->end
)
9972 aux_templates
.end
= t
;
9973 current_templates
= &aux_templates
;
9976 override
= (i
.prefix
[DATA_PREFIX
] != 0);
9977 if (flag_code
== CODE_64BIT
)
9979 if ((override
|| i
.suffix
== WORD_MNEM_SUFFIX
)
9980 && (!intel64
|| !has_intel64
))
9981 bigdisp
.bitfield
.disp16
= 1;
9983 bigdisp
.bitfield
.disp32s
= 1;
9988 override
= (i
.suffix
== (flag_code
!= CODE_16BIT
9990 : LONG_MNEM_SUFFIX
));
9991 bigdisp
.bitfield
.disp32
= 1;
9992 if ((flag_code
== CODE_16BIT
) ^ override
)
9994 bigdisp
.bitfield
.disp32
= 0;
9995 bigdisp
.bitfield
.disp16
= 1;
9999 i
.types
[this_operand
] = operand_type_or (i
.types
[this_operand
],
10002 exp
= &disp_expressions
[i
.disp_operands
];
10003 i
.op
[this_operand
].disps
= exp
;
10005 save_input_line_pointer
= input_line_pointer
;
10006 input_line_pointer
= disp_start
;
10007 END_STRING_AND_SAVE (disp_end
);
10009 #ifndef GCC_ASM_O_HACK
10010 #define GCC_ASM_O_HACK 0
10013 END_STRING_AND_SAVE (disp_end
+ 1);
10014 if (i
.types
[this_operand
].bitfield
.baseIndex
10015 && displacement_string_end
[-1] == '+')
10017 /* This hack is to avoid a warning when using the "o"
10018 constraint within gcc asm statements.
10021 #define _set_tssldt_desc(n,addr,limit,type) \
10022 __asm__ __volatile__ ( \
10023 "movw %w2,%0\n\t" \
10024 "movw %w1,2+%0\n\t" \
10025 "rorl $16,%1\n\t" \
10026 "movb %b1,4+%0\n\t" \
10027 "movb %4,5+%0\n\t" \
10028 "movb $0,6+%0\n\t" \
10029 "movb %h1,7+%0\n\t" \
10031 : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type))
10033 This works great except that the output assembler ends
10034 up looking a bit weird if it turns out that there is
10035 no offset. You end up producing code that looks like:
10048 So here we provide the missing zero. */
10050 *displacement_string_end
= '0';
10053 gotfree_input_line
= lex_got (&i
.reloc
[this_operand
], NULL
, &types
);
10054 if (gotfree_input_line
)
10055 input_line_pointer
= gotfree_input_line
;
10057 exp_seg
= expression (exp
);
10059 SKIP_WHITESPACE ();
10060 if (*input_line_pointer
)
10061 as_bad (_("junk `%s' after expression"), input_line_pointer
);
10063 RESTORE_END_STRING (disp_end
+ 1);
10065 input_line_pointer
= save_input_line_pointer
;
10066 if (gotfree_input_line
)
10068 free (gotfree_input_line
);
10070 if (exp
->X_op
== O_constant
|| exp
->X_op
== O_register
)
10071 exp
->X_op
= O_illegal
;
10074 ret
= i386_finalize_displacement (exp_seg
, exp
, types
, disp_start
);
10076 RESTORE_END_STRING (disp_end
);
10082 i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED
, expressionS
*exp
,
10083 i386_operand_type types
, const char *disp_start
)
10085 i386_operand_type bigdisp
;
10088 /* We do this to make sure that the section symbol is in
10089 the symbol table. We will ultimately change the relocation
10090 to be relative to the beginning of the section. */
10091 if (i
.reloc
[this_operand
] == BFD_RELOC_386_GOTOFF
10092 || i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTPCREL
10093 || i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTOFF64
)
10095 if (exp
->X_op
!= O_symbol
)
10098 if (S_IS_LOCAL (exp
->X_add_symbol
)
10099 && S_GET_SEGMENT (exp
->X_add_symbol
) != undefined_section
10100 && S_GET_SEGMENT (exp
->X_add_symbol
) != expr_section
)
10101 section_symbol (S_GET_SEGMENT (exp
->X_add_symbol
));
10102 exp
->X_op
= O_subtract
;
10103 exp
->X_op_symbol
= GOT_symbol
;
10104 if (i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTPCREL
)
10105 i
.reloc
[this_operand
] = BFD_RELOC_32_PCREL
;
10106 else if (i
.reloc
[this_operand
] == BFD_RELOC_X86_64_GOTOFF64
)
10107 i
.reloc
[this_operand
] = BFD_RELOC_64
;
10109 i
.reloc
[this_operand
] = BFD_RELOC_32
;
10112 else if (exp
->X_op
== O_absent
10113 || exp
->X_op
== O_illegal
10114 || exp
->X_op
== O_big
)
10117 as_bad (_("missing or invalid displacement expression `%s'"),
10122 else if (flag_code
== CODE_64BIT
10123 && !i
.prefix
[ADDR_PREFIX
]
10124 && exp
->X_op
== O_constant
)
10126 /* Since displacement is signed extended to 64bit, don't allow
10127 disp32 and turn off disp32s if they are out of range. */
10128 i
.types
[this_operand
].bitfield
.disp32
= 0;
10129 if (!fits_in_signed_long (exp
->X_add_number
))
10131 i
.types
[this_operand
].bitfield
.disp32s
= 0;
10132 if (i
.types
[this_operand
].bitfield
.baseindex
)
10134 as_bad (_("0x%lx out range of signed 32bit displacement"),
10135 (long) exp
->X_add_number
);
10141 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
10142 else if (exp
->X_op
!= O_constant
10143 && OUTPUT_FLAVOR
== bfd_target_aout_flavour
10144 && exp_seg
!= absolute_section
10145 && exp_seg
!= text_section
10146 && exp_seg
!= data_section
10147 && exp_seg
!= bss_section
10148 && exp_seg
!= undefined_section
10149 && !bfd_is_com_section (exp_seg
))
10151 as_bad (_("unimplemented segment %s in operand"), exp_seg
->name
);
10156 if (current_templates
->start
->opcode_modifier
.jump
== JUMP_BYTE
10157 /* Constants get taken care of by optimize_disp(). */
10158 && exp
->X_op
!= O_constant
)
10159 i
.types
[this_operand
].bitfield
.disp8
= 1;
10161 /* Check if this is a displacement only operand. */
10162 bigdisp
= i
.types
[this_operand
];
10163 bigdisp
.bitfield
.disp8
= 0;
10164 bigdisp
.bitfield
.disp16
= 0;
10165 bigdisp
.bitfield
.disp32
= 0;
10166 bigdisp
.bitfield
.disp32s
= 0;
10167 bigdisp
.bitfield
.disp64
= 0;
10168 if (operand_type_all_zero (&bigdisp
))
10169 i
.types
[this_operand
] = operand_type_and (i
.types
[this_operand
],
10175 /* Return the active addressing mode, taking address override and
10176 registers forming the address into consideration. Update the
10177 address override prefix if necessary. */
10179 static enum flag_code
10180 i386_addressing_mode (void)
10182 enum flag_code addr_mode
;
10184 if (i
.prefix
[ADDR_PREFIX
])
10185 addr_mode
= flag_code
== CODE_32BIT
? CODE_16BIT
: CODE_32BIT
;
10188 addr_mode
= flag_code
;
10190 #if INFER_ADDR_PREFIX
10191 if (i
.mem_operands
== 0)
10193 /* Infer address prefix from the first memory operand. */
10194 const reg_entry
*addr_reg
= i
.base_reg
;
10196 if (addr_reg
== NULL
)
10197 addr_reg
= i
.index_reg
;
10201 if (addr_reg
->reg_type
.bitfield
.dword
)
10202 addr_mode
= CODE_32BIT
;
10203 else if (flag_code
!= CODE_64BIT
10204 && addr_reg
->reg_type
.bitfield
.word
)
10205 addr_mode
= CODE_16BIT
;
10207 if (addr_mode
!= flag_code
)
10209 i
.prefix
[ADDR_PREFIX
] = ADDR_PREFIX_OPCODE
;
10211 /* Change the size of any displacement too. At most one
10212 of Disp16 or Disp32 is set.
10213 FIXME. There doesn't seem to be any real need for
10214 separate Disp16 and Disp32 flags. The same goes for
10215 Imm16 and Imm32. Removing them would probably clean
10216 up the code quite a lot. */
10217 if (flag_code
!= CODE_64BIT
10218 && (i
.types
[this_operand
].bitfield
.disp16
10219 || i
.types
[this_operand
].bitfield
.disp32
))
10220 i
.types
[this_operand
]
10221 = operand_type_xor (i
.types
[this_operand
], disp16_32
);
10231 /* Make sure the memory operand we've been dealt is valid.
10232 Return 1 on success, 0 on a failure. */
10235 i386_index_check (const char *operand_string
)
10237 const char *kind
= "base/index";
10238 enum flag_code addr_mode
= i386_addressing_mode ();
10240 if (current_templates
->start
->opcode_modifier
.isstring
10241 && !current_templates
->start
->cpu_flags
.bitfield
.cpupadlock
10242 && (current_templates
->end
[-1].opcode_modifier
.isstring
10243 || i
.mem_operands
))
10245 /* Memory operands of string insns are special in that they only allow
10246 a single register (rDI, rSI, or rBX) as their memory address. */
10247 const reg_entry
*expected_reg
;
10248 static const char *di_si
[][2] =
10254 static const char *bx
[] = { "ebx", "bx", "rbx" };
10256 kind
= "string address";
10258 if (current_templates
->start
->opcode_modifier
.repprefixok
)
10260 int es_op
= current_templates
->end
[-1].opcode_modifier
.isstring
10261 - IS_STRING_ES_OP0
;
10264 if (!current_templates
->end
[-1].operand_types
[0].bitfield
.baseindex
10265 || ((!i
.mem_operands
!= !intel_syntax
)
10266 && current_templates
->end
[-1].operand_types
[1]
10267 .bitfield
.baseindex
))
10269 expected_reg
= hash_find (reg_hash
, di_si
[addr_mode
][op
== es_op
]);
10272 expected_reg
= hash_find (reg_hash
, bx
[addr_mode
]);
10274 if (i
.base_reg
!= expected_reg
10276 || operand_type_check (i
.types
[this_operand
], disp
))
10278 /* The second memory operand must have the same size as
10282 && !((addr_mode
== CODE_64BIT
10283 && i
.base_reg
->reg_type
.bitfield
.qword
)
10284 || (addr_mode
== CODE_32BIT
10285 ? i
.base_reg
->reg_type
.bitfield
.dword
10286 : i
.base_reg
->reg_type
.bitfield
.word
)))
10289 as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"),
10291 intel_syntax
? '[' : '(',
10293 expected_reg
->reg_name
,
10294 intel_syntax
? ']' : ')');
10301 as_bad (_("`%s' is not a valid %s expression"),
10302 operand_string
, kind
);
10307 if (addr_mode
!= CODE_16BIT
)
10309 /* 32-bit/64-bit checks. */
10311 && ((addr_mode
== CODE_64BIT
10312 ? !i
.base_reg
->reg_type
.bitfield
.qword
10313 : !i
.base_reg
->reg_type
.bitfield
.dword
)
10314 || (i
.index_reg
&& i
.base_reg
->reg_num
== RegIP
)
10315 || i
.base_reg
->reg_num
== RegIZ
))
10317 && !i
.index_reg
->reg_type
.bitfield
.xmmword
10318 && !i
.index_reg
->reg_type
.bitfield
.ymmword
10319 && !i
.index_reg
->reg_type
.bitfield
.zmmword
10320 && ((addr_mode
== CODE_64BIT
10321 ? !i
.index_reg
->reg_type
.bitfield
.qword
10322 : !i
.index_reg
->reg_type
.bitfield
.dword
)
10323 || !i
.index_reg
->reg_type
.bitfield
.baseindex
)))
10326 /* bndmk, bndldx, and bndstx have special restrictions. */
10327 if (current_templates
->start
->base_opcode
== 0xf30f1b
10328 || (current_templates
->start
->base_opcode
& ~1) == 0x0f1a)
10330 /* They cannot use RIP-relative addressing. */
10331 if (i
.base_reg
&& i
.base_reg
->reg_num
== RegIP
)
10333 as_bad (_("`%s' cannot be used here"), operand_string
);
10337 /* bndldx and bndstx ignore their scale factor. */
10338 if (current_templates
->start
->base_opcode
!= 0xf30f1b
10339 && i
.log2_scale_factor
)
10340 as_warn (_("register scaling is being ignored here"));
10345 /* 16-bit checks. */
10347 && (!i
.base_reg
->reg_type
.bitfield
.word
10348 || !i
.base_reg
->reg_type
.bitfield
.baseindex
))
10350 && (!i
.index_reg
->reg_type
.bitfield
.word
10351 || !i
.index_reg
->reg_type
.bitfield
.baseindex
10353 && i
.base_reg
->reg_num
< 6
10354 && i
.index_reg
->reg_num
>= 6
10355 && i
.log2_scale_factor
== 0))))
10362 /* Handle vector immediates. */
10365 RC_SAE_immediate (const char *imm_start
)
10367 unsigned int match_found
, j
;
10368 const char *pstr
= imm_start
;
10376 for (j
= 0; j
< ARRAY_SIZE (RC_NamesTable
); j
++)
10378 if (!strncmp (pstr
, RC_NamesTable
[j
].name
, RC_NamesTable
[j
].len
))
10382 rc_op
.type
= RC_NamesTable
[j
].type
;
10383 rc_op
.operand
= this_operand
;
10384 i
.rounding
= &rc_op
;
10388 as_bad (_("duplicated `%s'"), imm_start
);
10391 pstr
+= RC_NamesTable
[j
].len
;
10399 if (*pstr
++ != '}')
10401 as_bad (_("Missing '}': '%s'"), imm_start
);
10404 /* RC/SAE immediate string should contain nothing more. */;
10407 as_bad (_("Junk after '}': '%s'"), imm_start
);
10411 exp
= &im_expressions
[i
.imm_operands
++];
10412 i
.op
[this_operand
].imms
= exp
;
10414 exp
->X_op
= O_constant
;
10415 exp
->X_add_number
= 0;
10416 exp
->X_add_symbol
= (symbolS
*) 0;
10417 exp
->X_op_symbol
= (symbolS
*) 0;
10419 i
.types
[this_operand
].bitfield
.imm8
= 1;
10423 /* Only string instructions can have a second memory operand, so
10424 reduce current_templates to just those if it contains any. */
10426 maybe_adjust_templates (void)
10428 const insn_template
*t
;
10430 gas_assert (i
.mem_operands
== 1);
10432 for (t
= current_templates
->start
; t
< current_templates
->end
; ++t
)
10433 if (t
->opcode_modifier
.isstring
)
10436 if (t
< current_templates
->end
)
10438 static templates aux_templates
;
10439 bfd_boolean recheck
;
10441 aux_templates
.start
= t
;
10442 for (; t
< current_templates
->end
; ++t
)
10443 if (!t
->opcode_modifier
.isstring
)
10445 aux_templates
.end
= t
;
10447 /* Determine whether to re-check the first memory operand. */
10448 recheck
= (aux_templates
.start
!= current_templates
->start
10449 || t
!= current_templates
->end
);
10451 current_templates
= &aux_templates
;
10455 i
.mem_operands
= 0;
10456 if (i
.memop1_string
!= NULL
10457 && i386_index_check (i
.memop1_string
) == 0)
10459 i
.mem_operands
= 1;
10466 /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero
10470 i386_att_operand (char *operand_string
)
10472 const reg_entry
*r
;
10474 char *op_string
= operand_string
;
10476 if (is_space_char (*op_string
))
10479 /* We check for an absolute prefix (differentiating,
10480 for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */
10481 if (*op_string
== ABSOLUTE_PREFIX
)
10484 if (is_space_char (*op_string
))
10486 i
.jumpabsolute
= TRUE
;
10489 /* Check if operand is a register. */
10490 if ((r
= parse_register (op_string
, &end_op
)) != NULL
)
10492 i386_operand_type temp
;
10494 /* Check for a segment override by searching for ':' after a
10495 segment register. */
10496 op_string
= end_op
;
10497 if (is_space_char (*op_string
))
10499 if (*op_string
== ':' && r
->reg_type
.bitfield
.class == SReg
)
10501 switch (r
->reg_num
)
10504 i
.seg
[i
.mem_operands
] = &es
;
10507 i
.seg
[i
.mem_operands
] = &cs
;
10510 i
.seg
[i
.mem_operands
] = &ss
;
10513 i
.seg
[i
.mem_operands
] = &ds
;
10516 i
.seg
[i
.mem_operands
] = &fs
;
10519 i
.seg
[i
.mem_operands
] = &gs
;
10523 /* Skip the ':' and whitespace. */
10525 if (is_space_char (*op_string
))
10528 if (!is_digit_char (*op_string
)
10529 && !is_identifier_char (*op_string
)
10530 && *op_string
!= '('
10531 && *op_string
!= ABSOLUTE_PREFIX
)
10533 as_bad (_("bad memory operand `%s'"), op_string
);
10536 /* Handle case of %es:*foo. */
10537 if (*op_string
== ABSOLUTE_PREFIX
)
10540 if (is_space_char (*op_string
))
10542 i
.jumpabsolute
= TRUE
;
10544 goto do_memory_reference
;
10547 /* Handle vector operations. */
10548 if (*op_string
== '{')
10550 op_string
= check_VecOperations (op_string
, NULL
);
10551 if (op_string
== NULL
)
10557 as_bad (_("junk `%s' after register"), op_string
);
10560 temp
= r
->reg_type
;
10561 temp
.bitfield
.baseindex
= 0;
10562 i
.types
[this_operand
] = operand_type_or (i
.types
[this_operand
],
10564 i
.types
[this_operand
].bitfield
.unspecified
= 0;
10565 i
.op
[this_operand
].regs
= r
;
10568 else if (*op_string
== REGISTER_PREFIX
)
10570 as_bad (_("bad register name `%s'"), op_string
);
10573 else if (*op_string
== IMMEDIATE_PREFIX
)
10576 if (i
.jumpabsolute
)
10578 as_bad (_("immediate operand illegal with absolute jump"));
10581 if (!i386_immediate (op_string
))
10584 else if (RC_SAE_immediate (operand_string
))
10586 /* If it is a RC or SAE immediate, do nothing. */
10589 else if (is_digit_char (*op_string
)
10590 || is_identifier_char (*op_string
)
10591 || *op_string
== '"'
10592 || *op_string
== '(')
10594 /* This is a memory reference of some sort. */
10597 /* Start and end of displacement string expression (if found). */
10598 char *displacement_string_start
;
10599 char *displacement_string_end
;
10602 do_memory_reference
:
10603 if (i
.mem_operands
== 1 && !maybe_adjust_templates ())
10605 if ((i
.mem_operands
== 1
10606 && !current_templates
->start
->opcode_modifier
.isstring
)
10607 || i
.mem_operands
== 2)
10609 as_bad (_("too many memory references for `%s'"),
10610 current_templates
->start
->name
);
10614 /* Check for base index form. We detect the base index form by
10615 looking for an ')' at the end of the operand, searching
10616 for the '(' matching it, and finding a REGISTER_PREFIX or ','
10618 base_string
= op_string
+ strlen (op_string
);
10620 /* Handle vector operations. */
10621 vop_start
= strchr (op_string
, '{');
10622 if (vop_start
&& vop_start
< base_string
)
10624 if (check_VecOperations (vop_start
, base_string
) == NULL
)
10626 base_string
= vop_start
;
10630 if (is_space_char (*base_string
))
10633 /* If we only have a displacement, set-up for it to be parsed later. */
10634 displacement_string_start
= op_string
;
10635 displacement_string_end
= base_string
+ 1;
10637 if (*base_string
== ')')
10640 unsigned int parens_balanced
= 1;
10641 /* We've already checked that the number of left & right ()'s are
10642 equal, so this loop will not be infinite. */
10646 if (*base_string
== ')')
10648 if (*base_string
== '(')
10651 while (parens_balanced
);
10653 temp_string
= base_string
;
10655 /* Skip past '(' and whitespace. */
10657 if (is_space_char (*base_string
))
10660 if (*base_string
== ','
10661 || ((i
.base_reg
= parse_register (base_string
, &end_op
))
10664 displacement_string_end
= temp_string
;
10666 i
.types
[this_operand
].bitfield
.baseindex
= 1;
10670 base_string
= end_op
;
10671 if (is_space_char (*base_string
))
10675 /* There may be an index reg or scale factor here. */
10676 if (*base_string
== ',')
10679 if (is_space_char (*base_string
))
10682 if ((i
.index_reg
= parse_register (base_string
, &end_op
))
10685 base_string
= end_op
;
10686 if (is_space_char (*base_string
))
10688 if (*base_string
== ',')
10691 if (is_space_char (*base_string
))
10694 else if (*base_string
!= ')')
10696 as_bad (_("expecting `,' or `)' "
10697 "after index register in `%s'"),
10702 else if (*base_string
== REGISTER_PREFIX
)
10704 end_op
= strchr (base_string
, ',');
10707 as_bad (_("bad register name `%s'"), base_string
);
10711 /* Check for scale factor. */
10712 if (*base_string
!= ')')
10714 char *end_scale
= i386_scale (base_string
);
10719 base_string
= end_scale
;
10720 if (is_space_char (*base_string
))
10722 if (*base_string
!= ')')
10724 as_bad (_("expecting `)' "
10725 "after scale factor in `%s'"),
10730 else if (!i
.index_reg
)
10732 as_bad (_("expecting index register or scale factor "
10733 "after `,'; got '%c'"),
10738 else if (*base_string
!= ')')
10740 as_bad (_("expecting `,' or `)' "
10741 "after base register in `%s'"),
10746 else if (*base_string
== REGISTER_PREFIX
)
10748 end_op
= strchr (base_string
, ',');
10751 as_bad (_("bad register name `%s'"), base_string
);
10756 /* If there's an expression beginning the operand, parse it,
10757 assuming displacement_string_start and
10758 displacement_string_end are meaningful. */
10759 if (displacement_string_start
!= displacement_string_end
)
10761 if (!i386_displacement (displacement_string_start
,
10762 displacement_string_end
))
10766 /* Special case for (%dx) while doing input/output op. */
10768 && i
.base_reg
->reg_type
.bitfield
.instance
== RegD
10769 && i
.base_reg
->reg_type
.bitfield
.word
10770 && i
.index_reg
== 0
10771 && i
.log2_scale_factor
== 0
10772 && i
.seg
[i
.mem_operands
] == 0
10773 && !operand_type_check (i
.types
[this_operand
], disp
))
10775 i
.types
[this_operand
] = i
.base_reg
->reg_type
;
10779 if (i386_index_check (operand_string
) == 0)
10781 i
.flags
[this_operand
] |= Operand_Mem
;
10782 if (i
.mem_operands
== 0)
10783 i
.memop1_string
= xstrdup (operand_string
);
10788 /* It's not a memory operand; argh! */
10789 as_bad (_("invalid char %s beginning operand %d `%s'"),
10790 output_invalid (*op_string
),
10795 return 1; /* Normal return. */
10798 /* Calculate the maximum variable size (i.e., excluding fr_fix)
10799 that an rs_machine_dependent frag may reach. */
10802 i386_frag_max_var (fragS
*frag
)
10804 /* The only relaxable frags are for jumps.
10805 Unconditional jumps can grow by 4 bytes and others by 5 bytes. */
10806 gas_assert (frag
->fr_type
== rs_machine_dependent
);
10807 return TYPE_FROM_RELAX_STATE (frag
->fr_subtype
) == UNCOND_JUMP
? 4 : 5;
10810 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10812 elf_symbol_resolved_in_segment_p (symbolS
*fr_symbol
, offsetT fr_var
)
10814 /* STT_GNU_IFUNC symbol must go through PLT. */
10815 if ((symbol_get_bfdsym (fr_symbol
)->flags
10816 & BSF_GNU_INDIRECT_FUNCTION
) != 0)
10819 if (!S_IS_EXTERNAL (fr_symbol
))
10820 /* Symbol may be weak or local. */
10821 return !S_IS_WEAK (fr_symbol
);
10823 /* Global symbols with non-default visibility can't be preempted. */
10824 if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol
)) != STV_DEFAULT
)
10827 if (fr_var
!= NO_RELOC
)
10828 switch ((enum bfd_reloc_code_real
) fr_var
)
10830 case BFD_RELOC_386_PLT32
:
10831 case BFD_RELOC_X86_64_PLT32
:
10832 /* Symbol with PLT relocation may be preempted. */
10838 /* Global symbols with default visibility in a shared library may be
10839 preempted by another definition. */
10844 /* Return the next non-empty frag. */
10847 i386_next_non_empty_frag (fragS
*fragP
)
10849 /* There may be a frag with a ".fill 0" when there is no room in
10850 the current frag for frag_grow in output_insn. */
10851 for (fragP
= fragP
->fr_next
;
10853 && fragP
->fr_type
== rs_fill
10854 && fragP
->fr_fix
== 0);
10855 fragP
= fragP
->fr_next
)
10860 /* Return the next jcc frag after BRANCH_PADDING. */
10863 i386_next_jcc_frag (fragS
*fragP
)
10868 if (fragP
->fr_type
== rs_machine_dependent
10869 && (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
)
10870 == BRANCH_PADDING
))
10872 fragP
= i386_next_non_empty_frag (fragP
);
10873 if (fragP
->fr_type
!= rs_machine_dependent
)
10875 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == COND_JUMP
)
10882 /* Classify BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags. */
10885 i386_classify_machine_dependent_frag (fragS
*fragP
)
10889 fragS
*branch_fragP
;
10891 unsigned int max_prefix_length
;
10893 if (fragP
->tc_frag_data
.classified
)
10896 /* First scan for BRANCH_PADDING and FUSED_JCC_PADDING. Convert
10897 FUSED_JCC_PADDING and merge BRANCH_PADDING. */
10898 for (next_fragP
= fragP
;
10899 next_fragP
!= NULL
;
10900 next_fragP
= next_fragP
->fr_next
)
10902 next_fragP
->tc_frag_data
.classified
= 1;
10903 if (next_fragP
->fr_type
== rs_machine_dependent
)
10904 switch (TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
))
10906 case BRANCH_PADDING
:
10907 /* The BRANCH_PADDING frag must be followed by a branch
10909 branch_fragP
= i386_next_non_empty_frag (next_fragP
);
10910 next_fragP
->tc_frag_data
.u
.branch_fragP
= branch_fragP
;
10912 case FUSED_JCC_PADDING
:
10913 /* Check if this is a fused jcc:
10915 CMP like instruction
10919 cmp_fragP
= i386_next_non_empty_frag (next_fragP
);
10920 pad_fragP
= i386_next_non_empty_frag (cmp_fragP
);
10921 branch_fragP
= i386_next_jcc_frag (pad_fragP
);
10924 /* The BRANCH_PADDING frag is merged with the
10925 FUSED_JCC_PADDING frag. */
10926 next_fragP
->tc_frag_data
.u
.branch_fragP
= branch_fragP
;
10927 /* CMP like instruction size. */
10928 next_fragP
->tc_frag_data
.cmp_size
= cmp_fragP
->fr_fix
;
10929 frag_wane (pad_fragP
);
10930 /* Skip to branch_fragP. */
10931 next_fragP
= branch_fragP
;
10933 else if (next_fragP
->tc_frag_data
.max_prefix_length
)
10935 /* Turn FUSED_JCC_PADDING into BRANCH_PREFIX if it isn't
10937 next_fragP
->fr_subtype
10938 = ENCODE_RELAX_STATE (BRANCH_PREFIX
, 0);
10939 next_fragP
->tc_frag_data
.max_bytes
10940 = next_fragP
->tc_frag_data
.max_prefix_length
;
10941 /* This will be updated in the BRANCH_PREFIX scan. */
10942 next_fragP
->tc_frag_data
.max_prefix_length
= 0;
10945 frag_wane (next_fragP
);
10950 /* Stop if there is no BRANCH_PREFIX. */
10951 if (!align_branch_prefix_size
)
10954 /* Scan for BRANCH_PREFIX. */
10955 for (; fragP
!= NULL
; fragP
= fragP
->fr_next
)
10957 if (fragP
->fr_type
!= rs_machine_dependent
10958 || (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
)
10962 /* Count all BRANCH_PREFIX frags before BRANCH_PADDING and
10963 COND_JUMP_PREFIX. */
10964 max_prefix_length
= 0;
10965 for (next_fragP
= fragP
;
10966 next_fragP
!= NULL
;
10967 next_fragP
= next_fragP
->fr_next
)
10969 if (next_fragP
->fr_type
== rs_fill
)
10970 /* Skip rs_fill frags. */
10972 else if (next_fragP
->fr_type
!= rs_machine_dependent
)
10973 /* Stop for all other frags. */
10976 /* rs_machine_dependent frags. */
10977 if (TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
)
10980 /* Count BRANCH_PREFIX frags. */
10981 if (max_prefix_length
>= MAX_FUSED_JCC_PADDING_SIZE
)
10983 max_prefix_length
= MAX_FUSED_JCC_PADDING_SIZE
;
10984 frag_wane (next_fragP
);
10988 += next_fragP
->tc_frag_data
.max_bytes
;
10990 else if ((TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
)
10992 || (TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
)
10993 == FUSED_JCC_PADDING
))
10995 /* Stop at BRANCH_PADDING and FUSED_JCC_PADDING. */
10996 fragP
->tc_frag_data
.u
.padding_fragP
= next_fragP
;
11000 /* Stop for other rs_machine_dependent frags. */
11004 fragP
->tc_frag_data
.max_prefix_length
= max_prefix_length
;
11006 /* Skip to the next frag. */
11007 fragP
= next_fragP
;
11011 /* Compute padding size for
11014 CMP like instruction
11016 COND_JUMP/UNCOND_JUMP
11021 COND_JUMP/UNCOND_JUMP
11025 i386_branch_padding_size (fragS
*fragP
, offsetT address
)
11027 unsigned int offset
, size
, padding_size
;
11028 fragS
*branch_fragP
= fragP
->tc_frag_data
.u
.branch_fragP
;
11030 /* The start address of the BRANCH_PADDING or FUSED_JCC_PADDING frag. */
11032 address
= fragP
->fr_address
;
11033 address
+= fragP
->fr_fix
;
11035 /* CMP like instrunction size. */
11036 size
= fragP
->tc_frag_data
.cmp_size
;
11038 /* The base size of the branch frag. */
11039 size
+= branch_fragP
->fr_fix
;
11041 /* Add opcode and displacement bytes for the rs_machine_dependent
11043 if (branch_fragP
->fr_type
== rs_machine_dependent
)
11044 size
+= md_relax_table
[branch_fragP
->fr_subtype
].rlx_length
;
11046 /* Check if branch is within boundary and doesn't end at the last
11048 offset
= address
& ((1U << align_branch_power
) - 1);
11049 if ((offset
+ size
) >= (1U << align_branch_power
))
11050 /* Padding needed to avoid crossing boundary. */
11051 padding_size
= (1U << align_branch_power
) - offset
;
11053 /* No padding needed. */
11056 /* The return value may be saved in tc_frag_data.length which is
11058 if (!fits_in_unsigned_byte (padding_size
))
11061 return padding_size
;
11064 /* i386_generic_table_relax_frag()
11066 Handle BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags to
11067 grow/shrink padding to align branch frags. Hand others to
11071 i386_generic_table_relax_frag (segT segment
, fragS
*fragP
, long stretch
)
11073 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PADDING
11074 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == FUSED_JCC_PADDING
)
11076 long padding_size
= i386_branch_padding_size (fragP
, 0);
11077 long grow
= padding_size
- fragP
->tc_frag_data
.length
;
11079 /* When the BRANCH_PREFIX frag is used, the computed address
11080 must match the actual address and there should be no padding. */
11081 if (fragP
->tc_frag_data
.padding_address
11082 && (fragP
->tc_frag_data
.padding_address
!= fragP
->fr_address
11086 /* Update the padding size. */
11088 fragP
->tc_frag_data
.length
= padding_size
;
11092 else if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PREFIX
)
11094 fragS
*padding_fragP
, *next_fragP
;
11095 long padding_size
, left_size
, last_size
;
11097 padding_fragP
= fragP
->tc_frag_data
.u
.padding_fragP
;
11098 if (!padding_fragP
)
11099 /* Use the padding set by the leading BRANCH_PREFIX frag. */
11100 return (fragP
->tc_frag_data
.length
11101 - fragP
->tc_frag_data
.last_length
);
11103 /* Compute the relative address of the padding frag in the very
11104 first time where the BRANCH_PREFIX frag sizes are zero. */
11105 if (!fragP
->tc_frag_data
.padding_address
)
11106 fragP
->tc_frag_data
.padding_address
11107 = padding_fragP
->fr_address
- (fragP
->fr_address
- stretch
);
11109 /* First update the last length from the previous interation. */
11110 left_size
= fragP
->tc_frag_data
.prefix_length
;
11111 for (next_fragP
= fragP
;
11112 next_fragP
!= padding_fragP
;
11113 next_fragP
= next_fragP
->fr_next
)
11114 if (next_fragP
->fr_type
== rs_machine_dependent
11115 && (TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
)
11120 int max
= next_fragP
->tc_frag_data
.max_bytes
;
11124 if (max
> left_size
)
11129 next_fragP
->tc_frag_data
.last_length
= size
;
11133 next_fragP
->tc_frag_data
.last_length
= 0;
11136 /* Check the padding size for the padding frag. */
11137 padding_size
= i386_branch_padding_size
11138 (padding_fragP
, (fragP
->fr_address
11139 + fragP
->tc_frag_data
.padding_address
));
11141 last_size
= fragP
->tc_frag_data
.prefix_length
;
11142 /* Check if there is change from the last interation. */
11143 if (padding_size
== last_size
)
11145 /* Update the expected address of the padding frag. */
11146 padding_fragP
->tc_frag_data
.padding_address
11147 = (fragP
->fr_address
+ padding_size
11148 + fragP
->tc_frag_data
.padding_address
);
11152 if (padding_size
> fragP
->tc_frag_data
.max_prefix_length
)
11154 /* No padding if there is no sufficient room. Clear the
11155 expected address of the padding frag. */
11156 padding_fragP
->tc_frag_data
.padding_address
= 0;
11160 /* Store the expected address of the padding frag. */
11161 padding_fragP
->tc_frag_data
.padding_address
11162 = (fragP
->fr_address
+ padding_size
11163 + fragP
->tc_frag_data
.padding_address
);
11165 fragP
->tc_frag_data
.prefix_length
= padding_size
;
11167 /* Update the length for the current interation. */
11168 left_size
= padding_size
;
11169 for (next_fragP
= fragP
;
11170 next_fragP
!= padding_fragP
;
11171 next_fragP
= next_fragP
->fr_next
)
11172 if (next_fragP
->fr_type
== rs_machine_dependent
11173 && (TYPE_FROM_RELAX_STATE (next_fragP
->fr_subtype
)
11178 int max
= next_fragP
->tc_frag_data
.max_bytes
;
11182 if (max
> left_size
)
11187 next_fragP
->tc_frag_data
.length
= size
;
11191 next_fragP
->tc_frag_data
.length
= 0;
11194 return (fragP
->tc_frag_data
.length
11195 - fragP
->tc_frag_data
.last_length
);
11197 return relax_frag (segment
, fragP
, stretch
);
11200 /* md_estimate_size_before_relax()
11202 Called just before relax() for rs_machine_dependent frags. The x86
11203 assembler uses these frags to handle variable size jump
11206 Any symbol that is now undefined will not become defined.
11207 Return the correct fr_subtype in the frag.
11208 Return the initial "guess for variable size of frag" to caller.
11209 The guess is actually the growth beyond the fixed part. Whatever
11210 we do to grow the fixed or variable part contributes to our
11214 md_estimate_size_before_relax (fragS
*fragP
, segT segment
)
11216 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PADDING
11217 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PREFIX
11218 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == FUSED_JCC_PADDING
)
11220 i386_classify_machine_dependent_frag (fragP
);
11221 return fragP
->tc_frag_data
.length
;
11224 /* We've already got fragP->fr_subtype right; all we have to do is
11225 check for un-relaxable symbols. On an ELF system, we can't relax
11226 an externally visible symbol, because it may be overridden by a
11228 if (S_GET_SEGMENT (fragP
->fr_symbol
) != segment
11229 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11231 && !elf_symbol_resolved_in_segment_p (fragP
->fr_symbol
,
11234 #if defined (OBJ_COFF) && defined (TE_PE)
11235 || (OUTPUT_FLAVOR
== bfd_target_coff_flavour
11236 && S_IS_WEAK (fragP
->fr_symbol
))
11240 /* Symbol is undefined in this segment, or we need to keep a
11241 reloc so that weak symbols can be overridden. */
11242 int size
= (fragP
->fr_subtype
& CODE16
) ? 2 : 4;
11243 enum bfd_reloc_code_real reloc_type
;
11244 unsigned char *opcode
;
11247 if (fragP
->fr_var
!= NO_RELOC
)
11248 reloc_type
= (enum bfd_reloc_code_real
) fragP
->fr_var
;
11249 else if (size
== 2)
11250 reloc_type
= BFD_RELOC_16_PCREL
;
11251 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11252 else if (need_plt32_p (fragP
->fr_symbol
))
11253 reloc_type
= BFD_RELOC_X86_64_PLT32
;
11256 reloc_type
= BFD_RELOC_32_PCREL
;
11258 old_fr_fix
= fragP
->fr_fix
;
11259 opcode
= (unsigned char *) fragP
->fr_opcode
;
11261 switch (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
))
11264 /* Make jmp (0xeb) a (d)word displacement jump. */
11266 fragP
->fr_fix
+= size
;
11267 fix_new (fragP
, old_fr_fix
, size
,
11269 fragP
->fr_offset
, 1,
11275 && (!no_cond_jump_promotion
|| fragP
->fr_var
!= NO_RELOC
))
11277 /* Negate the condition, and branch past an
11278 unconditional jump. */
11281 /* Insert an unconditional jump. */
11283 /* We added two extra opcode bytes, and have a two byte
11285 fragP
->fr_fix
+= 2 + 2;
11286 fix_new (fragP
, old_fr_fix
+ 2, 2,
11288 fragP
->fr_offset
, 1,
11292 /* Fall through. */
11295 if (no_cond_jump_promotion
&& fragP
->fr_var
== NO_RELOC
)
11299 fragP
->fr_fix
+= 1;
11300 fixP
= fix_new (fragP
, old_fr_fix
, 1,
11302 fragP
->fr_offset
, 1,
11303 BFD_RELOC_8_PCREL
);
11304 fixP
->fx_signed
= 1;
11308 /* This changes the byte-displacement jump 0x7N
11309 to the (d)word-displacement jump 0x0f,0x8N. */
11310 opcode
[1] = opcode
[0] + 0x10;
11311 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
11312 /* We've added an opcode byte. */
11313 fragP
->fr_fix
+= 1 + size
;
11314 fix_new (fragP
, old_fr_fix
+ 1, size
,
11316 fragP
->fr_offset
, 1,
11321 BAD_CASE (fragP
->fr_subtype
);
11325 return fragP
->fr_fix
- old_fr_fix
;
11328 /* Guess size depending on current relax state. Initially the relax
11329 state will correspond to a short jump and we return 1, because
11330 the variable part of the frag (the branch offset) is one byte
11331 long. However, we can relax a section more than once and in that
11332 case we must either set fr_subtype back to the unrelaxed state,
11333 or return the value for the appropriate branch. */
11334 return md_relax_table
[fragP
->fr_subtype
].rlx_length
;
11337 /* Called after relax() is finished.
11339 In: Address of frag.
11340 fr_type == rs_machine_dependent.
11341 fr_subtype is what the address relaxed to.
11343 Out: Any fixSs and constants are set up.
11344 Caller will turn frag into a ".space 0". */
11347 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
, segT sec ATTRIBUTE_UNUSED
,
11350 unsigned char *opcode
;
11351 unsigned char *where_to_put_displacement
= NULL
;
11352 offsetT target_address
;
11353 offsetT opcode_address
;
11354 unsigned int extension
= 0;
11355 offsetT displacement_from_opcode_start
;
11357 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PADDING
11358 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == FUSED_JCC_PADDING
11359 || TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PREFIX
)
11361 /* Generate nop padding. */
11362 unsigned int size
= fragP
->tc_frag_data
.length
;
11365 if (size
> fragP
->tc_frag_data
.max_bytes
)
11371 const char *branch
= "branch";
11372 const char *prefix
= "";
11373 fragS
*padding_fragP
;
11374 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
)
11377 padding_fragP
= fragP
->tc_frag_data
.u
.padding_fragP
;
11378 switch (fragP
->tc_frag_data
.default_prefix
)
11383 case CS_PREFIX_OPCODE
:
11386 case DS_PREFIX_OPCODE
:
11389 case ES_PREFIX_OPCODE
:
11392 case FS_PREFIX_OPCODE
:
11395 case GS_PREFIX_OPCODE
:
11398 case SS_PREFIX_OPCODE
:
11403 msg
= _("%s:%u: add %d%s at 0x%llx to align "
11404 "%s within %d-byte boundary\n");
11406 msg
= _("%s:%u: add additional %d%s at 0x%llx to "
11407 "align %s within %d-byte boundary\n");
11411 padding_fragP
= fragP
;
11412 msg
= _("%s:%u: add %d%s-byte nop at 0x%llx to align "
11413 "%s within %d-byte boundary\n");
11417 switch (padding_fragP
->tc_frag_data
.branch_type
)
11419 case align_branch_jcc
:
11422 case align_branch_fused
:
11423 branch
= "fused jcc";
11425 case align_branch_jmp
:
11428 case align_branch_call
:
11431 case align_branch_indirect
:
11432 branch
= "indiret branch";
11434 case align_branch_ret
:
11441 fprintf (stdout
, msg
,
11442 fragP
->fr_file
, fragP
->fr_line
, size
, prefix
,
11443 (long long) fragP
->fr_address
, branch
,
11444 1 << align_branch_power
);
11446 if (TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) == BRANCH_PREFIX
)
11447 memset (fragP
->fr_opcode
,
11448 fragP
->tc_frag_data
.default_prefix
, size
);
11450 i386_generate_nops (fragP
, (char *) fragP
->fr_opcode
,
11452 fragP
->fr_fix
+= size
;
11457 opcode
= (unsigned char *) fragP
->fr_opcode
;
11459 /* Address we want to reach in file space. */
11460 target_address
= S_GET_VALUE (fragP
->fr_symbol
) + fragP
->fr_offset
;
11462 /* Address opcode resides at in file space. */
11463 opcode_address
= fragP
->fr_address
+ fragP
->fr_fix
;
11465 /* Displacement from opcode start to fill into instruction. */
11466 displacement_from_opcode_start
= target_address
- opcode_address
;
11468 if ((fragP
->fr_subtype
& BIG
) == 0)
11470 /* Don't have to change opcode. */
11471 extension
= 1; /* 1 opcode + 1 displacement */
11472 where_to_put_displacement
= &opcode
[1];
11476 if (no_cond_jump_promotion
11477 && TYPE_FROM_RELAX_STATE (fragP
->fr_subtype
) != UNCOND_JUMP
)
11478 as_warn_where (fragP
->fr_file
, fragP
->fr_line
,
11479 _("long jump required"));
11481 switch (fragP
->fr_subtype
)
11483 case ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG
):
11484 extension
= 4; /* 1 opcode + 4 displacement */
11486 where_to_put_displacement
= &opcode
[1];
11489 case ENCODE_RELAX_STATE (UNCOND_JUMP
, BIG16
):
11490 extension
= 2; /* 1 opcode + 2 displacement */
11492 where_to_put_displacement
= &opcode
[1];
11495 case ENCODE_RELAX_STATE (COND_JUMP
, BIG
):
11496 case ENCODE_RELAX_STATE (COND_JUMP86
, BIG
):
11497 extension
= 5; /* 2 opcode + 4 displacement */
11498 opcode
[1] = opcode
[0] + 0x10;
11499 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
11500 where_to_put_displacement
= &opcode
[2];
11503 case ENCODE_RELAX_STATE (COND_JUMP
, BIG16
):
11504 extension
= 3; /* 2 opcode + 2 displacement */
11505 opcode
[1] = opcode
[0] + 0x10;
11506 opcode
[0] = TWO_BYTE_OPCODE_ESCAPE
;
11507 where_to_put_displacement
= &opcode
[2];
11510 case ENCODE_RELAX_STATE (COND_JUMP86
, BIG16
):
11515 where_to_put_displacement
= &opcode
[3];
11519 BAD_CASE (fragP
->fr_subtype
);
11524 /* If size if less then four we are sure that the operand fits,
11525 but if it's 4, then it could be that the displacement is larger
11527 if (DISP_SIZE_FROM_RELAX_STATE (fragP
->fr_subtype
) == 4
11529 && ((addressT
) (displacement_from_opcode_start
- extension
11530 + ((addressT
) 1 << 31))
11531 > (((addressT
) 2 << 31) - 1)))
11533 as_bad_where (fragP
->fr_file
, fragP
->fr_line
,
11534 _("jump target out of range"));
11535 /* Make us emit 0. */
11536 displacement_from_opcode_start
= extension
;
11538 /* Now put displacement after opcode. */
11539 md_number_to_chars ((char *) where_to_put_displacement
,
11540 (valueT
) (displacement_from_opcode_start
- extension
),
11541 DISP_SIZE_FROM_RELAX_STATE (fragP
->fr_subtype
));
11542 fragP
->fr_fix
+= extension
;
11545 /* Apply a fixup (fixP) to segment data, once it has been determined
11546 by our caller that we have all the info we need to fix it up.
11548 Parameter valP is the pointer to the value of the bits.
11550 On the 386, immediates, displacements, and data pointers are all in
11551 the same (little-endian) format, so we don't need to care about which
11552 we are handling. */
11555 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
11557 char *p
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
11558 valueT value
= *valP
;
11560 #if !defined (TE_Mach)
11561 if (fixP
->fx_pcrel
)
11563 switch (fixP
->fx_r_type
)
11569 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
11572 case BFD_RELOC_X86_64_32S
:
11573 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
11576 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
11579 fixP
->fx_r_type
= BFD_RELOC_8_PCREL
;
11584 if (fixP
->fx_addsy
!= NULL
11585 && (fixP
->fx_r_type
== BFD_RELOC_32_PCREL
11586 || fixP
->fx_r_type
== BFD_RELOC_64_PCREL
11587 || fixP
->fx_r_type
== BFD_RELOC_16_PCREL
11588 || fixP
->fx_r_type
== BFD_RELOC_8_PCREL
)
11589 && !use_rela_relocations
)
11591 /* This is a hack. There should be a better way to handle this.
11592 This covers for the fact that bfd_install_relocation will
11593 subtract the current location (for partial_inplace, PC relative
11594 relocations); see more below. */
11598 || OUTPUT_FLAVOR
== bfd_target_coff_flavour
11601 value
+= fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
11603 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11606 segT sym_seg
= S_GET_SEGMENT (fixP
->fx_addsy
);
11608 if ((sym_seg
== seg
11609 || (symbol_section_p (fixP
->fx_addsy
)
11610 && sym_seg
!= absolute_section
))
11611 && !generic_force_reloc (fixP
))
11613 /* Yes, we add the values in twice. This is because
11614 bfd_install_relocation subtracts them out again. I think
11615 bfd_install_relocation is broken, but I don't dare change
11617 value
+= fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
11621 #if defined (OBJ_COFF) && defined (TE_PE)
11622 /* For some reason, the PE format does not store a
11623 section address offset for a PC relative symbol. */
11624 if (S_GET_SEGMENT (fixP
->fx_addsy
) != seg
11625 || S_IS_WEAK (fixP
->fx_addsy
))
11626 value
+= md_pcrel_from (fixP
);
11629 #if defined (OBJ_COFF) && defined (TE_PE)
11630 if (fixP
->fx_addsy
!= NULL
11631 && S_IS_WEAK (fixP
->fx_addsy
)
11632 /* PR 16858: Do not modify weak function references. */
11633 && ! fixP
->fx_pcrel
)
11635 #if !defined (TE_PEP)
11636 /* For x86 PE weak function symbols are neither PC-relative
11637 nor do they set S_IS_FUNCTION. So the only reliable way
11638 to detect them is to check the flags of their containing
11640 if (S_GET_SEGMENT (fixP
->fx_addsy
) != NULL
11641 && S_GET_SEGMENT (fixP
->fx_addsy
)->flags
& SEC_CODE
)
11645 value
-= S_GET_VALUE (fixP
->fx_addsy
);
11649 /* Fix a few things - the dynamic linker expects certain values here,
11650 and we must not disappoint it. */
11651 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11652 if (IS_ELF
&& fixP
->fx_addsy
)
11653 switch (fixP
->fx_r_type
)
11655 case BFD_RELOC_386_PLT32
:
11656 case BFD_RELOC_X86_64_PLT32
:
11657 /* Make the jump instruction point to the address of the operand.
11658 At runtime we merely add the offset to the actual PLT entry.
11659 NB: Subtract the offset size only for jump instructions. */
11660 if (fixP
->fx_pcrel
)
11664 case BFD_RELOC_386_TLS_GD
:
11665 case BFD_RELOC_386_TLS_LDM
:
11666 case BFD_RELOC_386_TLS_IE_32
:
11667 case BFD_RELOC_386_TLS_IE
:
11668 case BFD_RELOC_386_TLS_GOTIE
:
11669 case BFD_RELOC_386_TLS_GOTDESC
:
11670 case BFD_RELOC_X86_64_TLSGD
:
11671 case BFD_RELOC_X86_64_TLSLD
:
11672 case BFD_RELOC_X86_64_GOTTPOFF
:
11673 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
11674 value
= 0; /* Fully resolved at runtime. No addend. */
11676 case BFD_RELOC_386_TLS_LE
:
11677 case BFD_RELOC_386_TLS_LDO_32
:
11678 case BFD_RELOC_386_TLS_LE_32
:
11679 case BFD_RELOC_X86_64_DTPOFF32
:
11680 case BFD_RELOC_X86_64_DTPOFF64
:
11681 case BFD_RELOC_X86_64_TPOFF32
:
11682 case BFD_RELOC_X86_64_TPOFF64
:
11683 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
11686 case BFD_RELOC_386_TLS_DESC_CALL
:
11687 case BFD_RELOC_X86_64_TLSDESC_CALL
:
11688 value
= 0; /* Fully resolved at runtime. No addend. */
11689 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
11693 case BFD_RELOC_VTABLE_INHERIT
:
11694 case BFD_RELOC_VTABLE_ENTRY
:
11701 #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */
11703 #endif /* !defined (TE_Mach) */
11705 /* Are we finished with this relocation now? */
11706 if (fixP
->fx_addsy
== NULL
)
11708 #if defined (OBJ_COFF) && defined (TE_PE)
11709 else if (fixP
->fx_addsy
!= NULL
&& S_IS_WEAK (fixP
->fx_addsy
))
11712 /* Remember value for tc_gen_reloc. */
11713 fixP
->fx_addnumber
= value
;
11714 /* Clear out the frag for now. */
11718 else if (use_rela_relocations
)
11720 fixP
->fx_no_overflow
= 1;
11721 /* Remember value for tc_gen_reloc. */
11722 fixP
->fx_addnumber
= value
;
11726 md_number_to_chars (p
, value
, fixP
->fx_size
);
11730 md_atof (int type
, char *litP
, int *sizeP
)
11732 /* This outputs the LITTLENUMs in REVERSE order;
11733 in accord with the bigendian 386. */
11734 return ieee_md_atof (type
, litP
, sizeP
, FALSE
);
11737 static char output_invalid_buf
[sizeof (unsigned char) * 2 + 6];
11740 output_invalid (int c
)
11743 snprintf (output_invalid_buf
, sizeof (output_invalid_buf
),
11746 snprintf (output_invalid_buf
, sizeof (output_invalid_buf
),
11747 "(0x%x)", (unsigned char) c
);
11748 return output_invalid_buf
;
11751 /* REG_STRING starts *before* REGISTER_PREFIX. */
11753 static const reg_entry
*
11754 parse_real_register (char *reg_string
, char **end_op
)
11756 char *s
= reg_string
;
11758 char reg_name_given
[MAX_REG_NAME_SIZE
+ 1];
11759 const reg_entry
*r
;
11761 /* Skip possible REGISTER_PREFIX and possible whitespace. */
11762 if (*s
== REGISTER_PREFIX
)
11765 if (is_space_char (*s
))
11768 p
= reg_name_given
;
11769 while ((*p
++ = register_chars
[(unsigned char) *s
]) != '\0')
11771 if (p
>= reg_name_given
+ MAX_REG_NAME_SIZE
)
11772 return (const reg_entry
*) NULL
;
11776 /* For naked regs, make sure that we are not dealing with an identifier.
11777 This prevents confusing an identifier like `eax_var' with register
11779 if (allow_naked_reg
&& identifier_chars
[(unsigned char) *s
])
11780 return (const reg_entry
*) NULL
;
11784 r
= (const reg_entry
*) hash_find (reg_hash
, reg_name_given
);
11786 /* Handle floating point regs, allowing spaces in the (i) part. */
11787 if (r
== i386_regtab
/* %st is first entry of table */)
11789 if (!cpu_arch_flags
.bitfield
.cpu8087
11790 && !cpu_arch_flags
.bitfield
.cpu287
11791 && !cpu_arch_flags
.bitfield
.cpu387
)
11792 return (const reg_entry
*) NULL
;
11794 if (is_space_char (*s
))
11799 if (is_space_char (*s
))
11801 if (*s
>= '0' && *s
<= '7')
11803 int fpr
= *s
- '0';
11805 if (is_space_char (*s
))
11810 r
= (const reg_entry
*) hash_find (reg_hash
, "st(0)");
11815 /* We have "%st(" then garbage. */
11816 return (const reg_entry
*) NULL
;
11820 if (r
== NULL
|| allow_pseudo_reg
)
11823 if (operand_type_all_zero (&r
->reg_type
))
11824 return (const reg_entry
*) NULL
;
11826 if ((r
->reg_type
.bitfield
.dword
11827 || (r
->reg_type
.bitfield
.class == SReg
&& r
->reg_num
> 3)
11828 || r
->reg_type
.bitfield
.class == RegCR
11829 || r
->reg_type
.bitfield
.class == RegDR
11830 || r
->reg_type
.bitfield
.class == RegTR
)
11831 && !cpu_arch_flags
.bitfield
.cpui386
)
11832 return (const reg_entry
*) NULL
;
11834 if (r
->reg_type
.bitfield
.class == RegMMX
&& !cpu_arch_flags
.bitfield
.cpummx
)
11835 return (const reg_entry
*) NULL
;
11837 if (!cpu_arch_flags
.bitfield
.cpuavx512f
)
11839 if (r
->reg_type
.bitfield
.zmmword
11840 || r
->reg_type
.bitfield
.class == RegMask
)
11841 return (const reg_entry
*) NULL
;
11843 if (!cpu_arch_flags
.bitfield
.cpuavx
)
11845 if (r
->reg_type
.bitfield
.ymmword
)
11846 return (const reg_entry
*) NULL
;
11848 if (!cpu_arch_flags
.bitfield
.cpusse
&& r
->reg_type
.bitfield
.xmmword
)
11849 return (const reg_entry
*) NULL
;
11853 if (r
->reg_type
.bitfield
.class == RegBND
&& !cpu_arch_flags
.bitfield
.cpumpx
)
11854 return (const reg_entry
*) NULL
;
11856 /* Don't allow fake index register unless allow_index_reg isn't 0. */
11857 if (!allow_index_reg
&& r
->reg_num
== RegIZ
)
11858 return (const reg_entry
*) NULL
;
11860 /* Upper 16 vector registers are only available with VREX in 64bit
11861 mode, and require EVEX encoding. */
11862 if (r
->reg_flags
& RegVRex
)
11864 if (!cpu_arch_flags
.bitfield
.cpuavx512f
11865 || flag_code
!= CODE_64BIT
)
11866 return (const reg_entry
*) NULL
;
11868 i
.vec_encoding
= vex_encoding_evex
;
11871 if (((r
->reg_flags
& (RegRex64
| RegRex
)) || r
->reg_type
.bitfield
.qword
)
11872 && (!cpu_arch_flags
.bitfield
.cpulm
|| r
->reg_type
.bitfield
.class != RegCR
)
11873 && flag_code
!= CODE_64BIT
)
11874 return (const reg_entry
*) NULL
;
11876 if (r
->reg_type
.bitfield
.class == SReg
&& r
->reg_num
== RegFlat
11878 return (const reg_entry
*) NULL
;
11883 /* REG_STRING starts *before* REGISTER_PREFIX. */
11885 static const reg_entry
*
11886 parse_register (char *reg_string
, char **end_op
)
11888 const reg_entry
*r
;
11890 if (*reg_string
== REGISTER_PREFIX
|| allow_naked_reg
)
11891 r
= parse_real_register (reg_string
, end_op
);
11896 char *save
= input_line_pointer
;
11900 input_line_pointer
= reg_string
;
11901 c
= get_symbol_name (®_string
);
11902 symbolP
= symbol_find (reg_string
);
11903 if (symbolP
&& S_GET_SEGMENT (symbolP
) == reg_section
)
11905 const expressionS
*e
= symbol_get_value_expression (symbolP
);
11907 know (e
->X_op
== O_register
);
11908 know (e
->X_add_number
>= 0
11909 && (valueT
) e
->X_add_number
< i386_regtab_size
);
11910 r
= i386_regtab
+ e
->X_add_number
;
11911 if ((r
->reg_flags
& RegVRex
))
11912 i
.vec_encoding
= vex_encoding_evex
;
11913 *end_op
= input_line_pointer
;
11915 *input_line_pointer
= c
;
11916 input_line_pointer
= save
;
11922 i386_parse_name (char *name
, expressionS
*e
, char *nextcharP
)
11924 const reg_entry
*r
;
11925 char *end
= input_line_pointer
;
11928 r
= parse_register (name
, &input_line_pointer
);
11929 if (r
&& end
<= input_line_pointer
)
11931 *nextcharP
= *input_line_pointer
;
11932 *input_line_pointer
= 0;
11933 e
->X_op
= O_register
;
11934 e
->X_add_number
= r
- i386_regtab
;
11937 input_line_pointer
= end
;
11939 return intel_syntax
? i386_intel_parse_name (name
, e
) : 0;
11943 md_operand (expressionS
*e
)
11946 const reg_entry
*r
;
11948 switch (*input_line_pointer
)
11950 case REGISTER_PREFIX
:
11951 r
= parse_real_register (input_line_pointer
, &end
);
11954 e
->X_op
= O_register
;
11955 e
->X_add_number
= r
- i386_regtab
;
11956 input_line_pointer
= end
;
11961 gas_assert (intel_syntax
);
11962 end
= input_line_pointer
++;
11964 if (*input_line_pointer
== ']')
11966 ++input_line_pointer
;
11967 e
->X_op_symbol
= make_expr_symbol (e
);
11968 e
->X_add_symbol
= NULL
;
11969 e
->X_add_number
= 0;
11974 e
->X_op
= O_absent
;
11975 input_line_pointer
= end
;
11982 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11983 const char *md_shortopts
= "kVQ:sqnO::";
11985 const char *md_shortopts
= "qnO::";
11988 #define OPTION_32 (OPTION_MD_BASE + 0)
11989 #define OPTION_64 (OPTION_MD_BASE + 1)
11990 #define OPTION_DIVIDE (OPTION_MD_BASE + 2)
11991 #define OPTION_MARCH (OPTION_MD_BASE + 3)
11992 #define OPTION_MTUNE (OPTION_MD_BASE + 4)
11993 #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5)
11994 #define OPTION_MSYNTAX (OPTION_MD_BASE + 6)
11995 #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7)
11996 #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8)
11997 #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9)
11998 #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10)
11999 #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11)
12000 #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12)
12001 #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13)
12002 #define OPTION_X32 (OPTION_MD_BASE + 14)
12003 #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15)
12004 #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16)
12005 #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17)
12006 #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18)
12007 #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19)
12008 #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20)
12009 #define OPTION_MSHARED (OPTION_MD_BASE + 21)
12010 #define OPTION_MAMD64 (OPTION_MD_BASE + 22)
12011 #define OPTION_MINTEL64 (OPTION_MD_BASE + 23)
12012 #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24)
12013 #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25)
12014 #define OPTION_MVEXWIG (OPTION_MD_BASE + 26)
12015 #define OPTION_MALIGN_BRANCH_BOUNDARY (OPTION_MD_BASE + 27)
12016 #define OPTION_MALIGN_BRANCH_PREFIX_SIZE (OPTION_MD_BASE + 28)
12017 #define OPTION_MALIGN_BRANCH (OPTION_MD_BASE + 29)
12018 #define OPTION_MBRANCHES_WITH_32B_BOUNDARIES (OPTION_MD_BASE + 30)
12020 struct option md_longopts
[] =
12022 {"32", no_argument
, NULL
, OPTION_32
},
12023 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12024 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
12025 {"64", no_argument
, NULL
, OPTION_64
},
12027 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12028 {"x32", no_argument
, NULL
, OPTION_X32
},
12029 {"mshared", no_argument
, NULL
, OPTION_MSHARED
},
12030 {"mx86-used-note", required_argument
, NULL
, OPTION_X86_USED_NOTE
},
12032 {"divide", no_argument
, NULL
, OPTION_DIVIDE
},
12033 {"march", required_argument
, NULL
, OPTION_MARCH
},
12034 {"mtune", required_argument
, NULL
, OPTION_MTUNE
},
12035 {"mmnemonic", required_argument
, NULL
, OPTION_MMNEMONIC
},
12036 {"msyntax", required_argument
, NULL
, OPTION_MSYNTAX
},
12037 {"mindex-reg", no_argument
, NULL
, OPTION_MINDEX_REG
},
12038 {"mnaked-reg", no_argument
, NULL
, OPTION_MNAKED_REG
},
12039 {"msse2avx", no_argument
, NULL
, OPTION_MSSE2AVX
},
12040 {"msse-check", required_argument
, NULL
, OPTION_MSSE_CHECK
},
12041 {"moperand-check", required_argument
, NULL
, OPTION_MOPERAND_CHECK
},
12042 {"mavxscalar", required_argument
, NULL
, OPTION_MAVXSCALAR
},
12043 {"mvexwig", required_argument
, NULL
, OPTION_MVEXWIG
},
12044 {"madd-bnd-prefix", no_argument
, NULL
, OPTION_MADD_BND_PREFIX
},
12045 {"mevexlig", required_argument
, NULL
, OPTION_MEVEXLIG
},
12046 {"mevexwig", required_argument
, NULL
, OPTION_MEVEXWIG
},
12047 # if defined (TE_PE) || defined (TE_PEP)
12048 {"mbig-obj", no_argument
, NULL
, OPTION_MBIG_OBJ
},
12050 {"momit-lock-prefix", required_argument
, NULL
, OPTION_MOMIT_LOCK_PREFIX
},
12051 {"mfence-as-lock-add", required_argument
, NULL
, OPTION_MFENCE_AS_LOCK_ADD
},
12052 {"mrelax-relocations", required_argument
, NULL
, OPTION_MRELAX_RELOCATIONS
},
12053 {"mevexrcig", required_argument
, NULL
, OPTION_MEVEXRCIG
},
12054 {"malign-branch-boundary", required_argument
, NULL
, OPTION_MALIGN_BRANCH_BOUNDARY
},
12055 {"malign-branch-prefix-size", required_argument
, NULL
, OPTION_MALIGN_BRANCH_PREFIX_SIZE
},
12056 {"malign-branch", required_argument
, NULL
, OPTION_MALIGN_BRANCH
},
12057 {"mbranches-within-32B-boundaries", no_argument
, NULL
, OPTION_MBRANCHES_WITH_32B_BOUNDARIES
},
12058 {"mamd64", no_argument
, NULL
, OPTION_MAMD64
},
12059 {"mintel64", no_argument
, NULL
, OPTION_MINTEL64
},
12060 {NULL
, no_argument
, NULL
, 0}
12062 size_t md_longopts_size
= sizeof (md_longopts
);
12065 md_parse_option (int c
, const char *arg
)
12068 char *arch
, *next
, *saved
, *type
;
12073 optimize_align_code
= 0;
12077 quiet_warnings
= 1;
12080 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12081 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
12082 should be emitted or not. FIXME: Not implemented. */
12084 if ((arg
[0] != 'y' && arg
[0] != 'n') || arg
[1])
12088 /* -V: SVR4 argument to print version ID. */
12090 print_version_id ();
12093 /* -k: Ignore for FreeBSD compatibility. */
12098 /* -s: On i386 Solaris, this tells the native assembler to use
12099 .stab instead of .stab.excl. We always use .stab anyhow. */
12102 case OPTION_MSHARED
:
12106 case OPTION_X86_USED_NOTE
:
12107 if (strcasecmp (arg
, "yes") == 0)
12109 else if (strcasecmp (arg
, "no") == 0)
12112 as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg
);
12117 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12118 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
12121 const char **list
, **l
;
12123 list
= bfd_target_list ();
12124 for (l
= list
; *l
!= NULL
; l
++)
12125 if (CONST_STRNEQ (*l
, "elf64-x86-64")
12126 || strcmp (*l
, "coff-x86-64") == 0
12127 || strcmp (*l
, "pe-x86-64") == 0
12128 || strcmp (*l
, "pei-x86-64") == 0
12129 || strcmp (*l
, "mach-o-x86-64") == 0)
12131 default_arch
= "x86_64";
12135 as_fatal (_("no compiled in support for x86_64"));
12141 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12145 const char **list
, **l
;
12147 list
= bfd_target_list ();
12148 for (l
= list
; *l
!= NULL
; l
++)
12149 if (CONST_STRNEQ (*l
, "elf32-x86-64"))
12151 default_arch
= "x86_64:32";
12155 as_fatal (_("no compiled in support for 32bit x86_64"));
12159 as_fatal (_("32bit x86_64 is only supported for ELF"));
12164 default_arch
= "i386";
12167 case OPTION_DIVIDE
:
12168 #ifdef SVR4_COMMENT_CHARS
12173 n
= XNEWVEC (char, strlen (i386_comment_chars
) + 1);
12175 for (s
= i386_comment_chars
; *s
!= '\0'; s
++)
12179 i386_comment_chars
= n
;
12185 saved
= xstrdup (arg
);
12187 /* Allow -march=+nosse. */
12193 as_fatal (_("invalid -march= option: `%s'"), arg
);
12194 next
= strchr (arch
, '+');
12197 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
12199 if (strcmp (arch
, cpu_arch
[j
].name
) == 0)
12202 if (! cpu_arch
[j
].flags
.bitfield
.cpui386
)
12205 cpu_arch_name
= cpu_arch
[j
].name
;
12206 cpu_sub_arch_name
= NULL
;
12207 cpu_arch_flags
= cpu_arch
[j
].flags
;
12208 cpu_arch_isa
= cpu_arch
[j
].type
;
12209 cpu_arch_isa_flags
= cpu_arch
[j
].flags
;
12210 if (!cpu_arch_tune_set
)
12212 cpu_arch_tune
= cpu_arch_isa
;
12213 cpu_arch_tune_flags
= cpu_arch_isa_flags
;
12217 else if (*cpu_arch
[j
].name
== '.'
12218 && strcmp (arch
, cpu_arch
[j
].name
+ 1) == 0)
12220 /* ISA extension. */
12221 i386_cpu_flags flags
;
12223 flags
= cpu_flags_or (cpu_arch_flags
,
12224 cpu_arch
[j
].flags
);
12226 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
12228 if (cpu_sub_arch_name
)
12230 char *name
= cpu_sub_arch_name
;
12231 cpu_sub_arch_name
= concat (name
,
12233 (const char *) NULL
);
12237 cpu_sub_arch_name
= xstrdup (cpu_arch
[j
].name
);
12238 cpu_arch_flags
= flags
;
12239 cpu_arch_isa_flags
= flags
;
12243 = cpu_flags_or (cpu_arch_isa_flags
,
12244 cpu_arch
[j
].flags
);
12249 if (j
>= ARRAY_SIZE (cpu_arch
))
12251 /* Disable an ISA extension. */
12252 for (j
= 0; j
< ARRAY_SIZE (cpu_noarch
); j
++)
12253 if (strcmp (arch
, cpu_noarch
[j
].name
) == 0)
12255 i386_cpu_flags flags
;
12257 flags
= cpu_flags_and_not (cpu_arch_flags
,
12258 cpu_noarch
[j
].flags
);
12259 if (!cpu_flags_equal (&flags
, &cpu_arch_flags
))
12261 if (cpu_sub_arch_name
)
12263 char *name
= cpu_sub_arch_name
;
12264 cpu_sub_arch_name
= concat (arch
,
12265 (const char *) NULL
);
12269 cpu_sub_arch_name
= xstrdup (arch
);
12270 cpu_arch_flags
= flags
;
12271 cpu_arch_isa_flags
= flags
;
12276 if (j
>= ARRAY_SIZE (cpu_noarch
))
12277 j
= ARRAY_SIZE (cpu_arch
);
12280 if (j
>= ARRAY_SIZE (cpu_arch
))
12281 as_fatal (_("invalid -march= option: `%s'"), arg
);
12285 while (next
!= NULL
);
12291 as_fatal (_("invalid -mtune= option: `%s'"), arg
);
12292 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
12294 if (strcmp (arg
, cpu_arch
[j
].name
) == 0)
12296 cpu_arch_tune_set
= 1;
12297 cpu_arch_tune
= cpu_arch
[j
].type
;
12298 cpu_arch_tune_flags
= cpu_arch
[j
].flags
;
12302 if (j
>= ARRAY_SIZE (cpu_arch
))
12303 as_fatal (_("invalid -mtune= option: `%s'"), arg
);
12306 case OPTION_MMNEMONIC
:
12307 if (strcasecmp (arg
, "att") == 0)
12308 intel_mnemonic
= 0;
12309 else if (strcasecmp (arg
, "intel") == 0)
12310 intel_mnemonic
= 1;
12312 as_fatal (_("invalid -mmnemonic= option: `%s'"), arg
);
12315 case OPTION_MSYNTAX
:
12316 if (strcasecmp (arg
, "att") == 0)
12318 else if (strcasecmp (arg
, "intel") == 0)
12321 as_fatal (_("invalid -msyntax= option: `%s'"), arg
);
12324 case OPTION_MINDEX_REG
:
12325 allow_index_reg
= 1;
12328 case OPTION_MNAKED_REG
:
12329 allow_naked_reg
= 1;
12332 case OPTION_MSSE2AVX
:
12336 case OPTION_MSSE_CHECK
:
12337 if (strcasecmp (arg
, "error") == 0)
12338 sse_check
= check_error
;
12339 else if (strcasecmp (arg
, "warning") == 0)
12340 sse_check
= check_warning
;
12341 else if (strcasecmp (arg
, "none") == 0)
12342 sse_check
= check_none
;
12344 as_fatal (_("invalid -msse-check= option: `%s'"), arg
);
12347 case OPTION_MOPERAND_CHECK
:
12348 if (strcasecmp (arg
, "error") == 0)
12349 operand_check
= check_error
;
12350 else if (strcasecmp (arg
, "warning") == 0)
12351 operand_check
= check_warning
;
12352 else if (strcasecmp (arg
, "none") == 0)
12353 operand_check
= check_none
;
12355 as_fatal (_("invalid -moperand-check= option: `%s'"), arg
);
12358 case OPTION_MAVXSCALAR
:
12359 if (strcasecmp (arg
, "128") == 0)
12360 avxscalar
= vex128
;
12361 else if (strcasecmp (arg
, "256") == 0)
12362 avxscalar
= vex256
;
12364 as_fatal (_("invalid -mavxscalar= option: `%s'"), arg
);
12367 case OPTION_MVEXWIG
:
12368 if (strcmp (arg
, "0") == 0)
12370 else if (strcmp (arg
, "1") == 0)
12373 as_fatal (_("invalid -mvexwig= option: `%s'"), arg
);
12376 case OPTION_MADD_BND_PREFIX
:
12377 add_bnd_prefix
= 1;
12380 case OPTION_MEVEXLIG
:
12381 if (strcmp (arg
, "128") == 0)
12382 evexlig
= evexl128
;
12383 else if (strcmp (arg
, "256") == 0)
12384 evexlig
= evexl256
;
12385 else if (strcmp (arg
, "512") == 0)
12386 evexlig
= evexl512
;
12388 as_fatal (_("invalid -mevexlig= option: `%s'"), arg
);
12391 case OPTION_MEVEXRCIG
:
12392 if (strcmp (arg
, "rne") == 0)
12394 else if (strcmp (arg
, "rd") == 0)
12396 else if (strcmp (arg
, "ru") == 0)
12398 else if (strcmp (arg
, "rz") == 0)
12401 as_fatal (_("invalid -mevexrcig= option: `%s'"), arg
);
12404 case OPTION_MEVEXWIG
:
12405 if (strcmp (arg
, "0") == 0)
12407 else if (strcmp (arg
, "1") == 0)
12410 as_fatal (_("invalid -mevexwig= option: `%s'"), arg
);
12413 # if defined (TE_PE) || defined (TE_PEP)
12414 case OPTION_MBIG_OBJ
:
12419 case OPTION_MOMIT_LOCK_PREFIX
:
12420 if (strcasecmp (arg
, "yes") == 0)
12421 omit_lock_prefix
= 1;
12422 else if (strcasecmp (arg
, "no") == 0)
12423 omit_lock_prefix
= 0;
12425 as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg
);
12428 case OPTION_MFENCE_AS_LOCK_ADD
:
12429 if (strcasecmp (arg
, "yes") == 0)
12431 else if (strcasecmp (arg
, "no") == 0)
12434 as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg
);
12437 case OPTION_MRELAX_RELOCATIONS
:
12438 if (strcasecmp (arg
, "yes") == 0)
12439 generate_relax_relocations
= 1;
12440 else if (strcasecmp (arg
, "no") == 0)
12441 generate_relax_relocations
= 0;
12443 as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg
);
12446 case OPTION_MALIGN_BRANCH_BOUNDARY
:
12449 long int align
= strtoul (arg
, &end
, 0);
12454 align_branch_power
= 0;
12457 else if (align
>= 16)
12460 for (align_power
= 0;
12462 align
>>= 1, align_power
++)
12464 /* Limit alignment power to 31. */
12465 if (align
== 1 && align_power
< 32)
12467 align_branch_power
= align_power
;
12472 as_fatal (_("invalid -malign-branch-boundary= value: %s"), arg
);
12476 case OPTION_MALIGN_BRANCH_PREFIX_SIZE
:
12479 int align
= strtoul (arg
, &end
, 0);
12480 /* Some processors only support 5 prefixes. */
12481 if (*end
== '\0' && align
>= 0 && align
< 6)
12483 align_branch_prefix_size
= align
;
12486 as_fatal (_("invalid -malign-branch-prefix-size= value: %s"),
12491 case OPTION_MALIGN_BRANCH
:
12493 saved
= xstrdup (arg
);
12497 next
= strchr (type
, '+');
12500 if (strcasecmp (type
, "jcc") == 0)
12501 align_branch
|= align_branch_jcc_bit
;
12502 else if (strcasecmp (type
, "fused") == 0)
12503 align_branch
|= align_branch_fused_bit
;
12504 else if (strcasecmp (type
, "jmp") == 0)
12505 align_branch
|= align_branch_jmp_bit
;
12506 else if (strcasecmp (type
, "call") == 0)
12507 align_branch
|= align_branch_call_bit
;
12508 else if (strcasecmp (type
, "ret") == 0)
12509 align_branch
|= align_branch_ret_bit
;
12510 else if (strcasecmp (type
, "indirect") == 0)
12511 align_branch
|= align_branch_indirect_bit
;
12513 as_fatal (_("invalid -malign-branch= option: `%s'"), arg
);
12516 while (next
!= NULL
);
12520 case OPTION_MBRANCHES_WITH_32B_BOUNDARIES
:
12521 align_branch_power
= 5;
12522 align_branch_prefix_size
= 5;
12523 align_branch
= (align_branch_jcc_bit
12524 | align_branch_fused_bit
12525 | align_branch_jmp_bit
);
12528 case OPTION_MAMD64
:
12532 case OPTION_MINTEL64
:
12540 /* Turn off -Os. */
12541 optimize_for_space
= 0;
12543 else if (*arg
== 's')
12545 optimize_for_space
= 1;
12546 /* Turn on all encoding optimizations. */
12547 optimize
= INT_MAX
;
12551 optimize
= atoi (arg
);
12552 /* Turn off -Os. */
12553 optimize_for_space
= 0;
12563 #define MESSAGE_TEMPLATE \
12567 output_message (FILE *stream
, char *p
, char *message
, char *start
,
12568 int *left_p
, const char *name
, int len
)
12570 int size
= sizeof (MESSAGE_TEMPLATE
);
12571 int left
= *left_p
;
12573 /* Reserve 2 spaces for ", " or ",\0" */
12576 /* Check if there is any room. */
12584 p
= mempcpy (p
, name
, len
);
12588 /* Output the current message now and start a new one. */
12591 fprintf (stream
, "%s\n", message
);
12593 left
= size
- (start
- message
) - len
- 2;
12595 gas_assert (left
>= 0);
12597 p
= mempcpy (p
, name
, len
);
12605 show_arch (FILE *stream
, int ext
, int check
)
12607 static char message
[] = MESSAGE_TEMPLATE
;
12608 char *start
= message
+ 27;
12610 int size
= sizeof (MESSAGE_TEMPLATE
);
12617 left
= size
- (start
- message
);
12618 for (j
= 0; j
< ARRAY_SIZE (cpu_arch
); j
++)
12620 /* Should it be skipped? */
12621 if (cpu_arch
[j
].skip
)
12624 name
= cpu_arch
[j
].name
;
12625 len
= cpu_arch
[j
].len
;
12628 /* It is an extension. Skip if we aren't asked to show it. */
12639 /* It is an processor. Skip if we show only extension. */
12642 else if (check
&& ! cpu_arch
[j
].flags
.bitfield
.cpui386
)
12644 /* It is an impossible processor - skip. */
12648 p
= output_message (stream
, p
, message
, start
, &left
, name
, len
);
12651 /* Display disabled extensions. */
12653 for (j
= 0; j
< ARRAY_SIZE (cpu_noarch
); j
++)
12655 name
= cpu_noarch
[j
].name
;
12656 len
= cpu_noarch
[j
].len
;
12657 p
= output_message (stream
, p
, message
, start
, &left
, name
,
12662 fprintf (stream
, "%s\n", message
);
12666 md_show_usage (FILE *stream
)
12668 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12669 fprintf (stream
, _("\
12670 -Qy, -Qn ignored\n\
12671 -V print assembler version number\n\
12674 fprintf (stream
, _("\
12675 -n Do not optimize code alignment\n\
12676 -q quieten some warnings\n"));
12677 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12678 fprintf (stream
, _("\
12681 #if defined BFD64 && (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12682 || defined (TE_PE) || defined (TE_PEP))
12683 fprintf (stream
, _("\
12684 --32/--64/--x32 generate 32bit/64bit/x32 code\n"));
12686 #ifdef SVR4_COMMENT_CHARS
12687 fprintf (stream
, _("\
12688 --divide do not treat `/' as a comment character\n"));
12690 fprintf (stream
, _("\
12691 --divide ignored\n"));
12693 fprintf (stream
, _("\
12694 -march=CPU[,+EXTENSION...]\n\
12695 generate code for CPU and EXTENSION, CPU is one of:\n"));
12696 show_arch (stream
, 0, 1);
12697 fprintf (stream
, _("\
12698 EXTENSION is combination of:\n"));
12699 show_arch (stream
, 1, 0);
12700 fprintf (stream
, _("\
12701 -mtune=CPU optimize for CPU, CPU is one of:\n"));
12702 show_arch (stream
, 0, 0);
12703 fprintf (stream
, _("\
12704 -msse2avx encode SSE instructions with VEX prefix\n"));
12705 fprintf (stream
, _("\
12706 -msse-check=[none|error|warning] (default: warning)\n\
12707 check SSE instructions\n"));
12708 fprintf (stream
, _("\
12709 -moperand-check=[none|error|warning] (default: warning)\n\
12710 check operand combinations for validity\n"));
12711 fprintf (stream
, _("\
12712 -mavxscalar=[128|256] (default: 128)\n\
12713 encode scalar AVX instructions with specific vector\n\
12715 fprintf (stream
, _("\
12716 -mvexwig=[0|1] (default: 0)\n\
12717 encode VEX instructions with specific VEX.W value\n\
12718 for VEX.W bit ignored instructions\n"));
12719 fprintf (stream
, _("\
12720 -mevexlig=[128|256|512] (default: 128)\n\
12721 encode scalar EVEX instructions with specific vector\n\
12723 fprintf (stream
, _("\
12724 -mevexwig=[0|1] (default: 0)\n\
12725 encode EVEX instructions with specific EVEX.W value\n\
12726 for EVEX.W bit ignored instructions\n"));
12727 fprintf (stream
, _("\
12728 -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\
12729 encode EVEX instructions with specific EVEX.RC value\n\
12730 for SAE-only ignored instructions\n"));
12731 fprintf (stream
, _("\
12732 -mmnemonic=[att|intel] "));
12733 if (SYSV386_COMPAT
)
12734 fprintf (stream
, _("(default: att)\n"));
12736 fprintf (stream
, _("(default: intel)\n"));
12737 fprintf (stream
, _("\
12738 use AT&T/Intel mnemonic\n"));
12739 fprintf (stream
, _("\
12740 -msyntax=[att|intel] (default: att)\n\
12741 use AT&T/Intel syntax\n"));
12742 fprintf (stream
, _("\
12743 -mindex-reg support pseudo index registers\n"));
12744 fprintf (stream
, _("\
12745 -mnaked-reg don't require `%%' prefix for registers\n"));
12746 fprintf (stream
, _("\
12747 -madd-bnd-prefix add BND prefix for all valid branches\n"));
12748 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12749 fprintf (stream
, _("\
12750 -mshared disable branch optimization for shared code\n"));
12751 fprintf (stream
, _("\
12752 -mx86-used-note=[no|yes] "));
12753 if (DEFAULT_X86_USED_NOTE
)
12754 fprintf (stream
, _("(default: yes)\n"));
12756 fprintf (stream
, _("(default: no)\n"));
12757 fprintf (stream
, _("\
12758 generate x86 used ISA and feature properties\n"));
12760 #if defined (TE_PE) || defined (TE_PEP)
12761 fprintf (stream
, _("\
12762 -mbig-obj generate big object files\n"));
12764 fprintf (stream
, _("\
12765 -momit-lock-prefix=[no|yes] (default: no)\n\
12766 strip all lock prefixes\n"));
12767 fprintf (stream
, _("\
12768 -mfence-as-lock-add=[no|yes] (default: no)\n\
12769 encode lfence, mfence and sfence as\n\
12770 lock addl $0x0, (%%{re}sp)\n"));
12771 fprintf (stream
, _("\
12772 -mrelax-relocations=[no|yes] "));
12773 if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS
)
12774 fprintf (stream
, _("(default: yes)\n"));
12776 fprintf (stream
, _("(default: no)\n"));
12777 fprintf (stream
, _("\
12778 generate relax relocations\n"));
12779 fprintf (stream
, _("\
12780 -malign-branch-boundary=NUM (default: 0)\n\
12781 align branches within NUM byte boundary\n"));
12782 fprintf (stream
, _("\
12783 -malign-branch=TYPE[+TYPE...] (default: jcc+fused+jmp)\n\
12784 TYPE is combination of jcc, fused, jmp, call, ret,\n\
12786 specify types of branches to align\n"));
12787 fprintf (stream
, _("\
12788 -malign-branch-prefix-size=NUM (default: 5)\n\
12789 align branches with NUM prefixes per instruction\n"));
12790 fprintf (stream
, _("\
12791 -mbranches-within-32B-boundaries\n\
12792 align branches within 32 byte boundary\n"));
12793 fprintf (stream
, _("\
12794 -mamd64 accept only AMD64 ISA [default]\n"));
12795 fprintf (stream
, _("\
12796 -mintel64 accept only Intel64 ISA\n"));
12799 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
12800 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12801 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
12803 /* Pick the target format to use. */
12806 i386_target_format (void)
12808 if (!strncmp (default_arch
, "x86_64", 6))
12810 update_code_flag (CODE_64BIT
, 1);
12811 if (default_arch
[6] == '\0')
12812 x86_elf_abi
= X86_64_ABI
;
12814 x86_elf_abi
= X86_64_X32_ABI
;
12816 else if (!strcmp (default_arch
, "i386"))
12817 update_code_flag (CODE_32BIT
, 1);
12818 else if (!strcmp (default_arch
, "iamcu"))
12820 update_code_flag (CODE_32BIT
, 1);
12821 if (cpu_arch_isa
== PROCESSOR_UNKNOWN
)
12823 static const i386_cpu_flags iamcu_flags
= CPU_IAMCU_FLAGS
;
12824 cpu_arch_name
= "iamcu";
12825 cpu_sub_arch_name
= NULL
;
12826 cpu_arch_flags
= iamcu_flags
;
12827 cpu_arch_isa
= PROCESSOR_IAMCU
;
12828 cpu_arch_isa_flags
= iamcu_flags
;
12829 if (!cpu_arch_tune_set
)
12831 cpu_arch_tune
= cpu_arch_isa
;
12832 cpu_arch_tune_flags
= cpu_arch_isa_flags
;
12835 else if (cpu_arch_isa
!= PROCESSOR_IAMCU
)
12836 as_fatal (_("Intel MCU doesn't support `%s' architecture"),
12840 as_fatal (_("unknown architecture"));
12842 if (cpu_flags_all_zero (&cpu_arch_isa_flags
))
12843 cpu_arch_isa_flags
= cpu_arch
[flag_code
== CODE_64BIT
].flags
;
12844 if (cpu_flags_all_zero (&cpu_arch_tune_flags
))
12845 cpu_arch_tune_flags
= cpu_arch
[flag_code
== CODE_64BIT
].flags
;
12847 switch (OUTPUT_FLAVOR
)
12849 #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT)
12850 case bfd_target_aout_flavour
:
12851 return AOUT_TARGET_FORMAT
;
12853 #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF)
12854 # if defined (TE_PE) || defined (TE_PEP)
12855 case bfd_target_coff_flavour
:
12856 if (flag_code
== CODE_64BIT
)
12857 return use_big_obj
? "pe-bigobj-x86-64" : "pe-x86-64";
12860 # elif defined (TE_GO32)
12861 case bfd_target_coff_flavour
:
12862 return "coff-go32";
12864 case bfd_target_coff_flavour
:
12865 return "coff-i386";
12868 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
12869 case bfd_target_elf_flavour
:
12871 const char *format
;
12873 switch (x86_elf_abi
)
12876 format
= ELF_TARGET_FORMAT
;
12878 tls_get_addr
= "___tls_get_addr";
12882 use_rela_relocations
= 1;
12885 tls_get_addr
= "__tls_get_addr";
12887 format
= ELF_TARGET_FORMAT64
;
12889 case X86_64_X32_ABI
:
12890 use_rela_relocations
= 1;
12893 tls_get_addr
= "__tls_get_addr";
12895 disallow_64bit_reloc
= 1;
12896 format
= ELF_TARGET_FORMAT32
;
12899 if (cpu_arch_isa
== PROCESSOR_L1OM
)
12901 if (x86_elf_abi
!= X86_64_ABI
)
12902 as_fatal (_("Intel L1OM is 64bit only"));
12903 return ELF_TARGET_L1OM_FORMAT
;
12905 else if (cpu_arch_isa
== PROCESSOR_K1OM
)
12907 if (x86_elf_abi
!= X86_64_ABI
)
12908 as_fatal (_("Intel K1OM is 64bit only"));
12909 return ELF_TARGET_K1OM_FORMAT
;
12911 else if (cpu_arch_isa
== PROCESSOR_IAMCU
)
12913 if (x86_elf_abi
!= I386_ABI
)
12914 as_fatal (_("Intel MCU is 32bit only"));
12915 return ELF_TARGET_IAMCU_FORMAT
;
12921 #if defined (OBJ_MACH_O)
12922 case bfd_target_mach_o_flavour
:
12923 if (flag_code
== CODE_64BIT
)
12925 use_rela_relocations
= 1;
12927 return "mach-o-x86-64";
12930 return "mach-o-i386";
12938 #endif /* OBJ_MAYBE_ more than one */
12941 md_undefined_symbol (char *name
)
12943 if (name
[0] == GLOBAL_OFFSET_TABLE_NAME
[0]
12944 && name
[1] == GLOBAL_OFFSET_TABLE_NAME
[1]
12945 && name
[2] == GLOBAL_OFFSET_TABLE_NAME
[2]
12946 && strcmp (name
, GLOBAL_OFFSET_TABLE_NAME
) == 0)
12950 if (symbol_find (name
))
12951 as_bad (_("GOT already in symbol table"));
12952 GOT_symbol
= symbol_new (name
, undefined_section
,
12953 (valueT
) 0, &zero_address_frag
);
12960 /* Round up a section size to the appropriate boundary. */
12963 md_section_align (segT segment ATTRIBUTE_UNUSED
, valueT size
)
12965 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
12966 if (OUTPUT_FLAVOR
== bfd_target_aout_flavour
)
12968 /* For a.out, force the section size to be aligned. If we don't do
12969 this, BFD will align it for us, but it will not write out the
12970 final bytes of the section. This may be a bug in BFD, but it is
12971 easier to fix it here since that is how the other a.out targets
12975 align
= bfd_section_alignment (segment
);
12976 size
= ((size
+ (1 << align
) - 1) & (-((valueT
) 1 << align
)));
12983 /* On the i386, PC-relative offsets are relative to the start of the
12984 next instruction. That is, the address of the offset, plus its
12985 size, since the offset is always the last part of the insn. */
12988 md_pcrel_from (fixS
*fixP
)
12990 return fixP
->fx_size
+ fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
12996 s_bss (int ignore ATTRIBUTE_UNUSED
)
13000 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13002 obj_elf_section_change_hook ();
13004 temp
= get_absolute_expression ();
13005 subseg_set (bss_section
, (subsegT
) temp
);
13006 demand_empty_rest_of_line ();
13011 /* Remember constant directive. */
13014 i386_cons_align (int ignore ATTRIBUTE_UNUSED
)
13016 if (last_insn
.kind
!= last_insn_directive
13017 && (bfd_section_flags (now_seg
) & SEC_CODE
))
13019 last_insn
.seg
= now_seg
;
13020 last_insn
.kind
= last_insn_directive
;
13021 last_insn
.name
= "constant directive";
13022 last_insn
.file
= as_where (&last_insn
.line
);
13027 i386_validate_fix (fixS
*fixp
)
13029 if (fixp
->fx_subsy
)
13031 if (fixp
->fx_subsy
== GOT_symbol
)
13033 if (fixp
->fx_r_type
== BFD_RELOC_32_PCREL
)
13037 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13038 if (fixp
->fx_tcbit2
)
13039 fixp
->fx_r_type
= (fixp
->fx_tcbit
13040 ? BFD_RELOC_X86_64_REX_GOTPCRELX
13041 : BFD_RELOC_X86_64_GOTPCRELX
);
13044 fixp
->fx_r_type
= BFD_RELOC_X86_64_GOTPCREL
;
13049 fixp
->fx_r_type
= BFD_RELOC_386_GOTOFF
;
13051 fixp
->fx_r_type
= BFD_RELOC_X86_64_GOTOFF64
;
13053 fixp
->fx_subsy
= 0;
13056 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13057 else if (!object_64bit
)
13059 if (fixp
->fx_r_type
== BFD_RELOC_386_GOT32
13060 && fixp
->fx_tcbit2
)
13061 fixp
->fx_r_type
= BFD_RELOC_386_GOT32X
;
13067 tc_gen_reloc (asection
*section ATTRIBUTE_UNUSED
, fixS
*fixp
)
13070 bfd_reloc_code_real_type code
;
13072 switch (fixp
->fx_r_type
)
13074 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13075 case BFD_RELOC_SIZE32
:
13076 case BFD_RELOC_SIZE64
:
13077 if (S_IS_DEFINED (fixp
->fx_addsy
)
13078 && !S_IS_EXTERNAL (fixp
->fx_addsy
))
13080 /* Resolve size relocation against local symbol to size of
13081 the symbol plus addend. */
13082 valueT value
= S_GET_SIZE (fixp
->fx_addsy
) + fixp
->fx_offset
;
13083 if (fixp
->fx_r_type
== BFD_RELOC_SIZE32
13084 && !fits_in_unsigned_long (value
))
13085 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
13086 _("symbol size computation overflow"));
13087 fixp
->fx_addsy
= NULL
;
13088 fixp
->fx_subsy
= NULL
;
13089 md_apply_fix (fixp
, (valueT
*) &value
, NULL
);
13093 /* Fall through. */
13095 case BFD_RELOC_X86_64_PLT32
:
13096 case BFD_RELOC_X86_64_GOT32
:
13097 case BFD_RELOC_X86_64_GOTPCREL
:
13098 case BFD_RELOC_X86_64_GOTPCRELX
:
13099 case BFD_RELOC_X86_64_REX_GOTPCRELX
:
13100 case BFD_RELOC_386_PLT32
:
13101 case BFD_RELOC_386_GOT32
:
13102 case BFD_RELOC_386_GOT32X
:
13103 case BFD_RELOC_386_GOTOFF
:
13104 case BFD_RELOC_386_GOTPC
:
13105 case BFD_RELOC_386_TLS_GD
:
13106 case BFD_RELOC_386_TLS_LDM
:
13107 case BFD_RELOC_386_TLS_LDO_32
:
13108 case BFD_RELOC_386_TLS_IE_32
:
13109 case BFD_RELOC_386_TLS_IE
:
13110 case BFD_RELOC_386_TLS_GOTIE
:
13111 case BFD_RELOC_386_TLS_LE_32
:
13112 case BFD_RELOC_386_TLS_LE
:
13113 case BFD_RELOC_386_TLS_GOTDESC
:
13114 case BFD_RELOC_386_TLS_DESC_CALL
:
13115 case BFD_RELOC_X86_64_TLSGD
:
13116 case BFD_RELOC_X86_64_TLSLD
:
13117 case BFD_RELOC_X86_64_DTPOFF32
:
13118 case BFD_RELOC_X86_64_DTPOFF64
:
13119 case BFD_RELOC_X86_64_GOTTPOFF
:
13120 case BFD_RELOC_X86_64_TPOFF32
:
13121 case BFD_RELOC_X86_64_TPOFF64
:
13122 case BFD_RELOC_X86_64_GOTOFF64
:
13123 case BFD_RELOC_X86_64_GOTPC32
:
13124 case BFD_RELOC_X86_64_GOT64
:
13125 case BFD_RELOC_X86_64_GOTPCREL64
:
13126 case BFD_RELOC_X86_64_GOTPC64
:
13127 case BFD_RELOC_X86_64_GOTPLT64
:
13128 case BFD_RELOC_X86_64_PLTOFF64
:
13129 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
13130 case BFD_RELOC_X86_64_TLSDESC_CALL
:
13131 case BFD_RELOC_RVA
:
13132 case BFD_RELOC_VTABLE_ENTRY
:
13133 case BFD_RELOC_VTABLE_INHERIT
:
13135 case BFD_RELOC_32_SECREL
:
13137 code
= fixp
->fx_r_type
;
13139 case BFD_RELOC_X86_64_32S
:
13140 if (!fixp
->fx_pcrel
)
13142 /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */
13143 code
= fixp
->fx_r_type
;
13146 /* Fall through. */
13148 if (fixp
->fx_pcrel
)
13150 switch (fixp
->fx_size
)
13153 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
13154 _("can not do %d byte pc-relative relocation"),
13156 code
= BFD_RELOC_32_PCREL
;
13158 case 1: code
= BFD_RELOC_8_PCREL
; break;
13159 case 2: code
= BFD_RELOC_16_PCREL
; break;
13160 case 4: code
= BFD_RELOC_32_PCREL
; break;
13162 case 8: code
= BFD_RELOC_64_PCREL
; break;
13168 switch (fixp
->fx_size
)
13171 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
13172 _("can not do %d byte relocation"),
13174 code
= BFD_RELOC_32
;
13176 case 1: code
= BFD_RELOC_8
; break;
13177 case 2: code
= BFD_RELOC_16
; break;
13178 case 4: code
= BFD_RELOC_32
; break;
13180 case 8: code
= BFD_RELOC_64
; break;
13187 if ((code
== BFD_RELOC_32
13188 || code
== BFD_RELOC_32_PCREL
13189 || code
== BFD_RELOC_X86_64_32S
)
13191 && fixp
->fx_addsy
== GOT_symbol
)
13194 code
= BFD_RELOC_386_GOTPC
;
13196 code
= BFD_RELOC_X86_64_GOTPC32
;
13198 if ((code
== BFD_RELOC_64
|| code
== BFD_RELOC_64_PCREL
)
13200 && fixp
->fx_addsy
== GOT_symbol
)
13202 code
= BFD_RELOC_X86_64_GOTPC64
;
13205 rel
= XNEW (arelent
);
13206 rel
->sym_ptr_ptr
= XNEW (asymbol
*);
13207 *rel
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
13209 rel
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
13211 if (!use_rela_relocations
)
13213 /* HACK: Since i386 ELF uses Rel instead of Rela, encode the
13214 vtable entry to be used in the relocation's section offset. */
13215 if (fixp
->fx_r_type
== BFD_RELOC_VTABLE_ENTRY
)
13216 rel
->address
= fixp
->fx_offset
;
13217 #if defined (OBJ_COFF) && defined (TE_PE)
13218 else if (fixp
->fx_addsy
&& S_IS_WEAK (fixp
->fx_addsy
))
13219 rel
->addend
= fixp
->fx_addnumber
- (S_GET_VALUE (fixp
->fx_addsy
) * 2);
13224 /* Use the rela in 64bit mode. */
13227 if (disallow_64bit_reloc
)
13230 case BFD_RELOC_X86_64_DTPOFF64
:
13231 case BFD_RELOC_X86_64_TPOFF64
:
13232 case BFD_RELOC_64_PCREL
:
13233 case BFD_RELOC_X86_64_GOTOFF64
:
13234 case BFD_RELOC_X86_64_GOT64
:
13235 case BFD_RELOC_X86_64_GOTPCREL64
:
13236 case BFD_RELOC_X86_64_GOTPC64
:
13237 case BFD_RELOC_X86_64_GOTPLT64
:
13238 case BFD_RELOC_X86_64_PLTOFF64
:
13239 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
13240 _("cannot represent relocation type %s in x32 mode"),
13241 bfd_get_reloc_code_name (code
));
13247 if (!fixp
->fx_pcrel
)
13248 rel
->addend
= fixp
->fx_offset
;
13252 case BFD_RELOC_X86_64_PLT32
:
13253 case BFD_RELOC_X86_64_GOT32
:
13254 case BFD_RELOC_X86_64_GOTPCREL
:
13255 case BFD_RELOC_X86_64_GOTPCRELX
:
13256 case BFD_RELOC_X86_64_REX_GOTPCRELX
:
13257 case BFD_RELOC_X86_64_TLSGD
:
13258 case BFD_RELOC_X86_64_TLSLD
:
13259 case BFD_RELOC_X86_64_GOTTPOFF
:
13260 case BFD_RELOC_X86_64_GOTPC32_TLSDESC
:
13261 case BFD_RELOC_X86_64_TLSDESC_CALL
:
13262 rel
->addend
= fixp
->fx_offset
- fixp
->fx_size
;
13265 rel
->addend
= (section
->vma
13267 + fixp
->fx_addnumber
13268 + md_pcrel_from (fixp
));
13273 rel
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
13274 if (rel
->howto
== NULL
)
13276 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
13277 _("cannot represent relocation type %s"),
13278 bfd_get_reloc_code_name (code
));
13279 /* Set howto to a garbage value so that we can keep going. */
13280 rel
->howto
= bfd_reloc_type_lookup (stdoutput
, BFD_RELOC_32
);
13281 gas_assert (rel
->howto
!= NULL
);
13287 #include "tc-i386-intel.c"
13290 tc_x86_parse_to_dw2regnum (expressionS
*exp
)
13292 int saved_naked_reg
;
13293 char saved_register_dot
;
13295 saved_naked_reg
= allow_naked_reg
;
13296 allow_naked_reg
= 1;
13297 saved_register_dot
= register_chars
['.'];
13298 register_chars
['.'] = '.';
13299 allow_pseudo_reg
= 1;
13300 expression_and_evaluate (exp
);
13301 allow_pseudo_reg
= 0;
13302 register_chars
['.'] = saved_register_dot
;
13303 allow_naked_reg
= saved_naked_reg
;
13305 if (exp
->X_op
== O_register
&& exp
->X_add_number
>= 0)
13307 if ((addressT
) exp
->X_add_number
< i386_regtab_size
)
13309 exp
->X_op
= O_constant
;
13310 exp
->X_add_number
= i386_regtab
[exp
->X_add_number
]
13311 .dw2_regnum
[flag_code
>> 1];
13314 exp
->X_op
= O_illegal
;
13319 tc_x86_frame_initial_instructions (void)
13321 static unsigned int sp_regno
[2];
13323 if (!sp_regno
[flag_code
>> 1])
13325 char *saved_input
= input_line_pointer
;
13326 char sp
[][4] = {"esp", "rsp"};
13329 input_line_pointer
= sp
[flag_code
>> 1];
13330 tc_x86_parse_to_dw2regnum (&exp
);
13331 gas_assert (exp
.X_op
== O_constant
);
13332 sp_regno
[flag_code
>> 1] = exp
.X_add_number
;
13333 input_line_pointer
= saved_input
;
13336 cfi_add_CFA_def_cfa (sp_regno
[flag_code
>> 1], -x86_cie_data_alignment
);
13337 cfi_add_CFA_offset (x86_dwarf2_return_column
, x86_cie_data_alignment
);
13341 x86_dwarf2_addr_size (void)
13343 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
13344 if (x86_elf_abi
== X86_64_X32_ABI
)
13347 return bfd_arch_bits_per_address (stdoutput
) / 8;
13351 i386_elf_section_type (const char *str
, size_t len
)
13353 if (flag_code
== CODE_64BIT
13354 && len
== sizeof ("unwind") - 1
13355 && strncmp (str
, "unwind", 6) == 0)
13356 return SHT_X86_64_UNWIND
;
13363 i386_solaris_fix_up_eh_frame (segT sec
)
13365 if (flag_code
== CODE_64BIT
)
13366 elf_section_type (sec
) = SHT_X86_64_UNWIND
;
13372 tc_pe_dwarf2_emit_offset (symbolS
*symbol
, unsigned int size
)
13376 exp
.X_op
= O_secrel
;
13377 exp
.X_add_symbol
= symbol
;
13378 exp
.X_add_number
= 0;
13379 emit_expr (&exp
, size
);
13383 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13384 /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */
13387 x86_64_section_letter (int letter
, const char **ptr_msg
)
13389 if (flag_code
== CODE_64BIT
)
13392 return SHF_X86_64_LARGE
;
13394 *ptr_msg
= _("bad .section directive: want a,l,w,x,M,S,G,T in string");
13397 *ptr_msg
= _("bad .section directive: want a,w,x,M,S,G,T in string");
13402 x86_64_section_word (char *str
, size_t len
)
13404 if (len
== 5 && flag_code
== CODE_64BIT
&& CONST_STRNEQ (str
, "large"))
13405 return SHF_X86_64_LARGE
;
13411 handle_large_common (int small ATTRIBUTE_UNUSED
)
13413 if (flag_code
!= CODE_64BIT
)
13415 s_comm_internal (0, elf_common_parse
);
13416 as_warn (_(".largecomm supported only in 64bit mode, producing .comm"));
13420 static segT lbss_section
;
13421 asection
*saved_com_section_ptr
= elf_com_section_ptr
;
13422 asection
*saved_bss_section
= bss_section
;
13424 if (lbss_section
== NULL
)
13426 flagword applicable
;
13427 segT seg
= now_seg
;
13428 subsegT subseg
= now_subseg
;
13430 /* The .lbss section is for local .largecomm symbols. */
13431 lbss_section
= subseg_new (".lbss", 0);
13432 applicable
= bfd_applicable_section_flags (stdoutput
);
13433 bfd_set_section_flags (lbss_section
, applicable
& SEC_ALLOC
);
13434 seg_info (lbss_section
)->bss
= 1;
13436 subseg_set (seg
, subseg
);
13439 elf_com_section_ptr
= &_bfd_elf_large_com_section
;
13440 bss_section
= lbss_section
;
13442 s_comm_internal (0, elf_common_parse
);
13444 elf_com_section_ptr
= saved_com_section_ptr
;
13445 bss_section
= saved_bss_section
;
13448 #endif /* OBJ_ELF || OBJ_MAYBE_ELF */