1 /* tc-i386.c -- Assemble code for the Intel 80386
2 Copyright (C) 1989-2019 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'
102 'templates' is for grouping together 'template' structures for opcodes
103 of the same name. This is only used for storing the insns in the grand
104 ole hash table of insns.
105 The templates themselves start at START and range up to (but not including)
110 const insn_template *start;
111 const insn_template *end;
115 /* 386 operand encoding bytes: see 386 book for details of this. */
118 unsigned int regmem; /* codes register or memory operand */
119 unsigned int reg; /* codes register operand (or extended opcode) */
120 unsigned int mode; /* how to interpret regmem & reg */
124 /* x86-64 extension prefix. */
125 typedef int rex_byte;
127 /* 386 opcode byte to code indirect addressing. */
136 /* x86 arch names, types and features */
139 const char *name; /* arch name */
140 unsigned int len; /* arch string length */
141 enum processor_type type; /* arch type */
142 i386_cpu_flags flags; /* cpu feature flags */
143 unsigned int skip; /* show_arch should skip this. */
147 /* Used to turn off indicated flags. */
150 const char *name; /* arch name */
151 unsigned int len; /* arch string length */
152 i386_cpu_flags flags; /* cpu feature flags */
156 static void update_code_flag (int, int);
157 static void set_code_flag (int);
158 static void set_16bit_gcc_code_flag (int);
159 static void set_intel_syntax (int);
160 static void set_intel_mnemonic (int);
161 static void set_allow_index_reg (int);
162 static void set_check (int);
163 static void set_cpu_arch (int);
165 static void pe_directive_secrel (int);
167 static void signed_cons (int);
168 static char *output_invalid (int c);
169 static int i386_finalize_immediate (segT, expressionS *, i386_operand_type,
171 static int i386_finalize_displacement (segT, expressionS *, i386_operand_type,
173 static int i386_att_operand (char *);
174 static int i386_intel_operand (char *, int);
175 static int i386_intel_simplify (expressionS *);
176 static int i386_intel_parse_name (const char *, expressionS *);
177 static const reg_entry *parse_register (char *, char **);
178 static char *parse_insn (char *, char *);
179 static char *parse_operands (char *, const char *);
180 static void swap_operands (void);
181 static void swap_2_operands (int, int);
182 static void optimize_imm (void);
183 static void optimize_disp (void);
184 static const insn_template *match_template (char);
185 static int check_string (void);
186 static int process_suffix (void);
187 static int check_byte_reg (void);
188 static int check_long_reg (void);
189 static int check_qword_reg (void);
190 static int check_word_reg (void);
191 static int finalize_imm (void);
192 static int process_operands (void);
193 static const seg_entry *build_modrm_byte (void);
194 static void output_insn (void);
195 static void output_imm (fragS *, offsetT);
196 static void output_disp (fragS *, offsetT);
198 static void s_bss (int);
200 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
201 static void handle_large_common (int small ATTRIBUTE_UNUSED);
203 /* GNU_PROPERTY_X86_ISA_1_USED. */
204 static unsigned int x86_isa_1_used;
205 /* GNU_PROPERTY_X86_FEATURE_2_USED. */
206 static unsigned int x86_feature_2_used;
207 /* Generate x86 used ISA and feature properties. */
208 static unsigned int x86_used_note = DEFAULT_X86_USED_NOTE;
211 static const char *default_arch = DEFAULT_ARCH;
213 /* This struct describes rounding control and SAE in the instruction. */
227 static struct RC_Operation rc_op;
229 /* The struct describes masking, applied to OPERAND in the instruction.
230 MASK is a pointer to the corresponding mask register. ZEROING tells
231 whether merging or zeroing mask is used. */
232 struct Mask_Operation
234 const reg_entry *mask;
235 unsigned int zeroing;
236 /* The operand where this operation is associated. */
240 static struct Mask_Operation mask_op;
242 /* The struct describes broadcasting, applied to OPERAND. FACTOR is
244 struct Broadcast_Operation
246 /* Type of broadcast: {1to2}, {1to4}, {1to8}, or {1to16}. */
249 /* Index of broadcasted operand. */
252 /* Number of bytes to broadcast. */
256 static struct Broadcast_Operation broadcast_op;
261 /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */
262 unsigned char bytes[4];
264 /* Destination or source register specifier. */
265 const reg_entry *register_specifier;
268 /* 'md_assemble ()' gathers together information and puts it into a
275 const reg_entry *regs;
280 operand_size_mismatch,
281 operand_type_mismatch,
282 register_type_mismatch,
283 number_of_operands_mismatch,
284 invalid_instruction_suffix,
286 unsupported_with_intel_mnemonic,
289 invalid_vsib_address,
290 invalid_vector_register_set,
291 unsupported_vector_index_register,
292 unsupported_broadcast,
295 mask_not_on_destination,
298 rc_sae_operand_not_last_imm,
299 invalid_register_operand,
304 /* TM holds the template for the insn were currently assembling. */
307 /* SUFFIX holds the instruction size suffix for byte, word, dword
308 or qword, if given. */
311 /* OPERANDS gives the number of given operands. */
312 unsigned int operands;
314 /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number
315 of given register, displacement, memory operands and immediate
317 unsigned int reg_operands, disp_operands, mem_operands, imm_operands;
319 /* TYPES [i] is the type (see above #defines) which tells us how to
320 use OP[i] for the corresponding operand. */
321 i386_operand_type types[MAX_OPERANDS];
323 /* Displacement expression, immediate expression, or register for each
325 union i386_op op[MAX_OPERANDS];
327 /* Flags for operands. */
328 unsigned int flags[MAX_OPERANDS];
329 #define Operand_PCrel 1
330 #define Operand_Mem 2
332 /* Relocation type for operand */
333 enum bfd_reloc_code_real reloc[MAX_OPERANDS];
335 /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode
336 the base index byte below. */
337 const reg_entry *base_reg;
338 const reg_entry *index_reg;
339 unsigned int log2_scale_factor;
341 /* SEG gives the seg_entries of this insn. They are zero unless
342 explicit segment overrides are given. */
343 const seg_entry *seg[2];
345 /* Copied first memory operand string, for re-checking. */
348 /* PREFIX holds all the given prefix opcodes (usually null).
349 PREFIXES is the number of prefix opcodes. */
350 unsigned int prefixes;
351 unsigned char prefix[MAX_PREFIXES];
353 /* Has MMX register operands. */
354 bfd_boolean has_regmmx;
356 /* Has XMM register operands. */
357 bfd_boolean has_regxmm;
359 /* Has YMM register operands. */
360 bfd_boolean has_regymm;
362 /* Has ZMM register operands. */
363 bfd_boolean has_regzmm;
365 /* RM and SIB are the modrm byte and the sib byte where the
366 addressing modes of this insn are encoded. */
373 /* Masking attributes. */
374 struct Mask_Operation *mask;
376 /* Rounding control and SAE attributes. */
377 struct RC_Operation *rounding;
379 /* Broadcasting attributes. */
380 struct Broadcast_Operation *broadcast;
382 /* Compressed disp8*N attribute. */
383 unsigned int memshift;
385 /* Prefer load or store in encoding. */
388 dir_encoding_default = 0,
394 /* Prefer 8bit or 32bit displacement in encoding. */
397 disp_encoding_default = 0,
402 /* Prefer the REX byte in encoding. */
403 bfd_boolean rex_encoding;
405 /* Disable instruction size optimization. */
406 bfd_boolean no_optimize;
408 /* How to encode vector instructions. */
411 vex_encoding_default = 0,
418 const char *rep_prefix;
421 const char *hle_prefix;
423 /* Have BND prefix. */
424 const char *bnd_prefix;
426 /* Have NOTRACK prefix. */
427 const char *notrack_prefix;
430 enum i386_error error;
433 typedef struct _i386_insn i386_insn;
435 /* Link RC type with corresponding string, that'll be looked for in
444 static const struct RC_name RC_NamesTable[] =
446 { rne, STRING_COMMA_LEN ("rn-sae") },
447 { rd, STRING_COMMA_LEN ("rd-sae") },
448 { ru, STRING_COMMA_LEN ("ru-sae") },
449 { rz, STRING_COMMA_LEN ("rz-sae") },
450 { saeonly, STRING_COMMA_LEN ("sae") },
453 /* List of chars besides those in app.c:symbol_chars that can start an
454 operand. Used to prevent the scrubber eating vital white-space. */
455 const char extra_symbol_chars[] = "*%-([{}"
464 #if (defined (TE_I386AIX) \
465 || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \
466 && !defined (TE_GNU) \
467 && !defined (TE_LINUX) \
468 && !defined (TE_NACL) \
469 && !defined (TE_FreeBSD) \
470 && !defined (TE_DragonFly) \
471 && !defined (TE_NetBSD)))
472 /* This array holds the chars that always start a comment. If the
473 pre-processor is disabled, these aren't very useful. The option
474 --divide will remove '/' from this list. */
475 const char *i386_comment_chars = "#/";
476 #define SVR4_COMMENT_CHARS 1
477 #define PREFIX_SEPARATOR '\\'
480 const char *i386_comment_chars = "#";
481 #define PREFIX_SEPARATOR '/'
484 /* This array holds the chars that only start a comment at the beginning of
485 a line. If the line seems to have the form '# 123 filename'
486 .line and .file directives will appear in the pre-processed output.
487 Note that input_file.c hand checks for '#' at the beginning of the
488 first line of the input file. This is because the compiler outputs
489 #NO_APP at the beginning of its output.
490 Also note that comments started like this one will always work if
491 '/' isn't otherwise defined. */
492 const char line_comment_chars[] = "#/";
494 const char line_separator_chars[] = ";";
496 /* Chars that can be used to separate mant from exp in floating point
498 const char EXP_CHARS[] = "eE";
500 /* Chars that mean this number is a floating point constant
503 const char FLT_CHARS[] = "fFdDxX";
505 /* Tables for lexical analysis. */
506 static char mnemonic_chars[256];
507 static char register_chars[256];
508 static char operand_chars[256];
509 static char identifier_chars[256];
510 static char digit_chars[256];
512 /* Lexical macros. */
513 #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x])
514 #define is_operand_char(x) (operand_chars[(unsigned char) x])
515 #define is_register_char(x) (register_chars[(unsigned char) x])
516 #define is_space_char(x) ((x) == ' ')
517 #define is_identifier_char(x) (identifier_chars[(unsigned char) x])
518 #define is_digit_char(x) (digit_chars[(unsigned char) x])
520 /* All non-digit non-letter characters that may occur in an operand. */
521 static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]";
523 /* md_assemble() always leaves the strings it's passed unaltered. To
524 effect this we maintain a stack of saved characters that we've smashed
525 with '\0's (indicating end of strings for various sub-fields of the
526 assembler instruction). */
527 static char save_stack[32];
528 static char *save_stack_p;
529 #define END_STRING_AND_SAVE(s) \
530 do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0)
531 #define RESTORE_END_STRING(s) \
532 do { *(s) = *--save_stack_p; } while (0)
534 /* The instruction we're assembling. */
537 /* Possible templates for current insn. */
538 static const templates *current_templates;
540 /* Per instruction expressionS buffers: max displacements & immediates. */
541 static expressionS disp_expressions[MAX_MEMORY_OPERANDS];
542 static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS];
544 /* Current operand we are working on. */
545 static int this_operand = -1;
547 /* We support four different modes. FLAG_CODE variable is used to distinguish
555 static enum flag_code flag_code;
556 static unsigned int object_64bit;
557 static unsigned int disallow_64bit_reloc;
558 static int use_rela_relocations = 0;
560 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
561 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
562 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
564 /* The ELF ABI to use. */
572 static enum x86_elf_abi x86_elf_abi = I386_ABI;
575 #if defined (TE_PE) || defined (TE_PEP)
576 /* Use big object file format. */
577 static int use_big_obj = 0;
580 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
581 /* 1 if generating code for a shared library. */
582 static int shared = 0;
585 /* 1 for intel syntax,
587 static int intel_syntax = 0;
589 /* 1 for Intel64 ISA,
593 /* 1 for intel mnemonic,
594 0 if att mnemonic. */
595 static int intel_mnemonic = !SYSV386_COMPAT;
597 /* 1 if pseudo registers are permitted. */
598 static int allow_pseudo_reg = 0;
600 /* 1 if register prefix % not required. */
601 static int allow_naked_reg = 0;
603 /* 1 if the assembler should add BND prefix for all control-transferring
604 instructions supporting it, even if this prefix wasn't specified
606 static int add_bnd_prefix = 0;
608 /* 1 if pseudo index register, eiz/riz, is allowed . */
609 static int allow_index_reg = 0;
611 /* 1 if the assembler should ignore LOCK prefix, even if it was
612 specified explicitly. */
613 static int omit_lock_prefix = 0;
615 /* 1 if the assembler should encode lfence, mfence, and sfence as
616 "lock addl $0, (%{re}sp)". */
617 static int avoid_fence = 0;
619 /* 1 if the assembler should generate relax relocations. */
621 static int generate_relax_relocations
622 = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS;
624 static enum check_kind
630 sse_check, operand_check = check_warning;
633 1. Clear the REX_W bit with register operand if possible.
634 2. Above plus use 128bit vector instruction to clear the full vector
637 static int optimize = 0;
640 1. Clear the REX_W bit with register operand if possible.
641 2. Above plus use 128bit vector instruction to clear the full vector
643 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to
646 static int optimize_for_space = 0;
648 /* Register prefix used for error message. */
649 static const char *register_prefix = "%";
651 /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter,
652 leave, push, and pop instructions so that gcc has the same stack
653 frame as in 32 bit mode. */
654 static char stackop_size = '\0';
656 /* Non-zero to optimize code alignment. */
657 int optimize_align_code = 1;
659 /* Non-zero to quieten some warnings. */
660 static int quiet_warnings = 0;
663 static const char *cpu_arch_name = NULL;
664 static char *cpu_sub_arch_name = NULL;
666 /* CPU feature flags. */
667 static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS;
669 /* If we have selected a cpu we are generating instructions for. */
670 static int cpu_arch_tune_set = 0;
672 /* Cpu we are generating instructions for. */
673 enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN;
675 /* CPU feature flags of cpu we are generating instructions for. */
676 static i386_cpu_flags cpu_arch_tune_flags;
678 /* CPU instruction set architecture used. */
679 enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN;
681 /* CPU feature flags of instruction set architecture used. */
682 i386_cpu_flags cpu_arch_isa_flags;
684 /* If set, conditional jumps are not automatically promoted to handle
685 larger than a byte offset. */
686 static unsigned int no_cond_jump_promotion = 0;
688 /* Encode SSE instructions with VEX prefix. */
689 static unsigned int sse2avx;
691 /* Encode scalar AVX instructions with specific vector length. */
698 /* Encode VEX WIG instructions with specific vex.w. */
705 /* Encode scalar EVEX LIG instructions with specific vector length. */
713 /* Encode EVEX WIG instructions with specific evex.w. */
720 /* Value to encode in EVEX RC bits, for SAE-only instructions. */
721 static enum rc_type evexrcig = rne;
723 /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */
724 static symbolS *GOT_symbol;
726 /* The dwarf2 return column, adjusted for 32 or 64 bit. */
727 unsigned int x86_dwarf2_return_column;
729 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
730 int x86_cie_data_alignment;
732 /* Interface to relax_segment.
733 There are 3 major relax states for 386 jump insns because the
734 different types of jumps add different sizes to frags when we're
735 figuring out what sort of jump to choose to reach a given label. */
738 #define UNCOND_JUMP 0
740 #define COND_JUMP86 2
745 #define SMALL16 (SMALL | CODE16)
747 #define BIG16 (BIG | CODE16)
751 #define INLINE __inline__
757 #define ENCODE_RELAX_STATE(type, size) \
758 ((relax_substateT) (((type) << 2) | (size)))
759 #define TYPE_FROM_RELAX_STATE(s) \
761 #define DISP_SIZE_FROM_RELAX_STATE(s) \
762 ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1)))
764 /* This table is used by relax_frag to promote short jumps to long
765 ones where necessary. SMALL (short) jumps may be promoted to BIG
766 (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We
767 don't allow a short jump in a 32 bit code segment to be promoted to
768 a 16 bit offset jump because it's slower (requires data size
769 prefix), and doesn't work, unless the destination is in the bottom
770 64k of the code segment (The top 16 bits of eip are zeroed). */
772 const relax_typeS md_relax_table[] =
775 1) most positive reach of this state,
776 2) most negative reach of this state,
777 3) how many bytes this mode will have in the variable part of the frag
778 4) which index into the table to try if we can't fit into this one. */
780 /* UNCOND_JUMP states. */
781 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)},
782 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)},
783 /* dword jmp adds 4 bytes to frag:
784 0 extra opcode bytes, 4 displacement bytes. */
786 /* word jmp adds 2 byte2 to frag:
787 0 extra opcode bytes, 2 displacement bytes. */
790 /* COND_JUMP states. */
791 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)},
792 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)},
793 /* dword conditionals adds 5 bytes to frag:
794 1 extra opcode byte, 4 displacement bytes. */
796 /* word conditionals add 3 bytes to frag:
797 1 extra opcode byte, 2 displacement bytes. */
800 /* COND_JUMP86 states. */
801 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)},
802 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)},
803 /* dword conditionals adds 5 bytes to frag:
804 1 extra opcode byte, 4 displacement bytes. */
806 /* word conditionals add 4 bytes to frag:
807 1 displacement byte and a 3 byte long branch insn. */
811 static const arch_entry cpu_arch[] =
813 /* Do not replace the first two entries - i386_target_format()
814 relies on them being there in this order. */
815 { STRING_COMMA_LEN ("generic32"), PROCESSOR_GENERIC32,
816 CPU_GENERIC32_FLAGS, 0 },
817 { STRING_COMMA_LEN ("generic64"), PROCESSOR_GENERIC64,
818 CPU_GENERIC64_FLAGS, 0 },
819 { STRING_COMMA_LEN ("i8086"), PROCESSOR_UNKNOWN,
821 { STRING_COMMA_LEN ("i186"), PROCESSOR_UNKNOWN,
823 { STRING_COMMA_LEN ("i286"), PROCESSOR_UNKNOWN,
825 { STRING_COMMA_LEN ("i386"), PROCESSOR_I386,
827 { STRING_COMMA_LEN ("i486"), PROCESSOR_I486,
829 { STRING_COMMA_LEN ("i586"), PROCESSOR_PENTIUM,
831 { STRING_COMMA_LEN ("i686"), PROCESSOR_PENTIUMPRO,
833 { STRING_COMMA_LEN ("pentium"), PROCESSOR_PENTIUM,
835 { STRING_COMMA_LEN ("pentiumpro"), PROCESSOR_PENTIUMPRO,
836 CPU_PENTIUMPRO_FLAGS, 0 },
837 { STRING_COMMA_LEN ("pentiumii"), PROCESSOR_PENTIUMPRO,
839 { STRING_COMMA_LEN ("pentiumiii"),PROCESSOR_PENTIUMPRO,
841 { STRING_COMMA_LEN ("pentium4"), PROCESSOR_PENTIUM4,
843 { STRING_COMMA_LEN ("prescott"), PROCESSOR_NOCONA,
845 { STRING_COMMA_LEN ("nocona"), PROCESSOR_NOCONA,
846 CPU_NOCONA_FLAGS, 0 },
847 { STRING_COMMA_LEN ("yonah"), PROCESSOR_CORE,
849 { STRING_COMMA_LEN ("core"), PROCESSOR_CORE,
851 { STRING_COMMA_LEN ("merom"), PROCESSOR_CORE2,
852 CPU_CORE2_FLAGS, 1 },
853 { STRING_COMMA_LEN ("core2"), PROCESSOR_CORE2,
854 CPU_CORE2_FLAGS, 0 },
855 { STRING_COMMA_LEN ("corei7"), PROCESSOR_COREI7,
856 CPU_COREI7_FLAGS, 0 },
857 { STRING_COMMA_LEN ("l1om"), PROCESSOR_L1OM,
859 { STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM,
861 { STRING_COMMA_LEN ("iamcu"), PROCESSOR_IAMCU,
862 CPU_IAMCU_FLAGS, 0 },
863 { STRING_COMMA_LEN ("k6"), PROCESSOR_K6,
865 { STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6,
867 { STRING_COMMA_LEN ("athlon"), PROCESSOR_ATHLON,
868 CPU_ATHLON_FLAGS, 0 },
869 { STRING_COMMA_LEN ("sledgehammer"), PROCESSOR_K8,
871 { STRING_COMMA_LEN ("opteron"), PROCESSOR_K8,
873 { STRING_COMMA_LEN ("k8"), PROCESSOR_K8,
875 { STRING_COMMA_LEN ("amdfam10"), PROCESSOR_AMDFAM10,
876 CPU_AMDFAM10_FLAGS, 0 },
877 { STRING_COMMA_LEN ("bdver1"), PROCESSOR_BD,
878 CPU_BDVER1_FLAGS, 0 },
879 { STRING_COMMA_LEN ("bdver2"), PROCESSOR_BD,
880 CPU_BDVER2_FLAGS, 0 },
881 { STRING_COMMA_LEN ("bdver3"), PROCESSOR_BD,
882 CPU_BDVER3_FLAGS, 0 },
883 { STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD,
884 CPU_BDVER4_FLAGS, 0 },
885 { STRING_COMMA_LEN ("znver1"), PROCESSOR_ZNVER,
886 CPU_ZNVER1_FLAGS, 0 },
887 { STRING_COMMA_LEN ("znver2"), PROCESSOR_ZNVER,
888 CPU_ZNVER2_FLAGS, 0 },
889 { STRING_COMMA_LEN ("btver1"), PROCESSOR_BT,
890 CPU_BTVER1_FLAGS, 0 },
891 { STRING_COMMA_LEN ("btver2"), PROCESSOR_BT,
892 CPU_BTVER2_FLAGS, 0 },
893 { STRING_COMMA_LEN (".8087"), PROCESSOR_UNKNOWN,
895 { STRING_COMMA_LEN (".287"), PROCESSOR_UNKNOWN,
897 { STRING_COMMA_LEN (".387"), PROCESSOR_UNKNOWN,
899 { STRING_COMMA_LEN (".687"), PROCESSOR_UNKNOWN,
901 { STRING_COMMA_LEN (".cmov"), PROCESSOR_UNKNOWN,
903 { STRING_COMMA_LEN (".fxsr"), PROCESSOR_UNKNOWN,
905 { STRING_COMMA_LEN (".mmx"), PROCESSOR_UNKNOWN,
907 { STRING_COMMA_LEN (".sse"), PROCESSOR_UNKNOWN,
909 { STRING_COMMA_LEN (".sse2"), PROCESSOR_UNKNOWN,
911 { STRING_COMMA_LEN (".sse3"), PROCESSOR_UNKNOWN,
913 { STRING_COMMA_LEN (".ssse3"), PROCESSOR_UNKNOWN,
914 CPU_SSSE3_FLAGS, 0 },
915 { STRING_COMMA_LEN (".sse4.1"), PROCESSOR_UNKNOWN,
916 CPU_SSE4_1_FLAGS, 0 },
917 { STRING_COMMA_LEN (".sse4.2"), PROCESSOR_UNKNOWN,
918 CPU_SSE4_2_FLAGS, 0 },
919 { STRING_COMMA_LEN (".sse4"), PROCESSOR_UNKNOWN,
920 CPU_SSE4_2_FLAGS, 0 },
921 { STRING_COMMA_LEN (".avx"), PROCESSOR_UNKNOWN,
923 { STRING_COMMA_LEN (".avx2"), PROCESSOR_UNKNOWN,
925 { STRING_COMMA_LEN (".avx512f"), PROCESSOR_UNKNOWN,
926 CPU_AVX512F_FLAGS, 0 },
927 { STRING_COMMA_LEN (".avx512cd"), PROCESSOR_UNKNOWN,
928 CPU_AVX512CD_FLAGS, 0 },
929 { STRING_COMMA_LEN (".avx512er"), PROCESSOR_UNKNOWN,
930 CPU_AVX512ER_FLAGS, 0 },
931 { STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN,
932 CPU_AVX512PF_FLAGS, 0 },
933 { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN,
934 CPU_AVX512DQ_FLAGS, 0 },
935 { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN,
936 CPU_AVX512BW_FLAGS, 0 },
937 { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN,
938 CPU_AVX512VL_FLAGS, 0 },
939 { STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN,
941 { STRING_COMMA_LEN (".vmfunc"), PROCESSOR_UNKNOWN,
942 CPU_VMFUNC_FLAGS, 0 },
943 { STRING_COMMA_LEN (".smx"), PROCESSOR_UNKNOWN,
945 { STRING_COMMA_LEN (".xsave"), PROCESSOR_UNKNOWN,
946 CPU_XSAVE_FLAGS, 0 },
947 { STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN,
948 CPU_XSAVEOPT_FLAGS, 0 },
949 { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN,
950 CPU_XSAVEC_FLAGS, 0 },
951 { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN,
952 CPU_XSAVES_FLAGS, 0 },
953 { STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN,
955 { STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN,
956 CPU_PCLMUL_FLAGS, 0 },
957 { STRING_COMMA_LEN (".clmul"), PROCESSOR_UNKNOWN,
958 CPU_PCLMUL_FLAGS, 1 },
959 { STRING_COMMA_LEN (".fsgsbase"), PROCESSOR_UNKNOWN,
960 CPU_FSGSBASE_FLAGS, 0 },
961 { STRING_COMMA_LEN (".rdrnd"), PROCESSOR_UNKNOWN,
962 CPU_RDRND_FLAGS, 0 },
963 { STRING_COMMA_LEN (".f16c"), PROCESSOR_UNKNOWN,
965 { STRING_COMMA_LEN (".bmi2"), PROCESSOR_UNKNOWN,
967 { STRING_COMMA_LEN (".fma"), PROCESSOR_UNKNOWN,
969 { STRING_COMMA_LEN (".fma4"), PROCESSOR_UNKNOWN,
971 { STRING_COMMA_LEN (".xop"), PROCESSOR_UNKNOWN,
973 { STRING_COMMA_LEN (".lwp"), PROCESSOR_UNKNOWN,
975 { STRING_COMMA_LEN (".movbe"), PROCESSOR_UNKNOWN,
976 CPU_MOVBE_FLAGS, 0 },
977 { STRING_COMMA_LEN (".cx16"), PROCESSOR_UNKNOWN,
979 { STRING_COMMA_LEN (".ept"), PROCESSOR_UNKNOWN,
981 { STRING_COMMA_LEN (".lzcnt"), PROCESSOR_UNKNOWN,
982 CPU_LZCNT_FLAGS, 0 },
983 { STRING_COMMA_LEN (".hle"), PROCESSOR_UNKNOWN,
985 { STRING_COMMA_LEN (".rtm"), PROCESSOR_UNKNOWN,
987 { STRING_COMMA_LEN (".invpcid"), PROCESSOR_UNKNOWN,
988 CPU_INVPCID_FLAGS, 0 },
989 { STRING_COMMA_LEN (".clflush"), PROCESSOR_UNKNOWN,
990 CPU_CLFLUSH_FLAGS, 0 },
991 { STRING_COMMA_LEN (".nop"), PROCESSOR_UNKNOWN,
993 { STRING_COMMA_LEN (".syscall"), PROCESSOR_UNKNOWN,
994 CPU_SYSCALL_FLAGS, 0 },
995 { STRING_COMMA_LEN (".rdtscp"), PROCESSOR_UNKNOWN,
996 CPU_RDTSCP_FLAGS, 0 },
997 { STRING_COMMA_LEN (".3dnow"), PROCESSOR_UNKNOWN,
998 CPU_3DNOW_FLAGS, 0 },
999 { STRING_COMMA_LEN (".3dnowa"), PROCESSOR_UNKNOWN,
1000 CPU_3DNOWA_FLAGS, 0 },
1001 { STRING_COMMA_LEN (".padlock"), PROCESSOR_UNKNOWN,
1002 CPU_PADLOCK_FLAGS, 0 },
1003 { STRING_COMMA_LEN (".pacifica"), PROCESSOR_UNKNOWN,
1004 CPU_SVME_FLAGS, 1 },
1005 { STRING_COMMA_LEN (".svme"), PROCESSOR_UNKNOWN,
1006 CPU_SVME_FLAGS, 0 },
1007 { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN,
1008 CPU_SSE4A_FLAGS, 0 },
1009 { STRING_COMMA_LEN (".abm"), PROCESSOR_UNKNOWN,
1011 { STRING_COMMA_LEN (".bmi"), PROCESSOR_UNKNOWN,
1013 { STRING_COMMA_LEN (".tbm"), PROCESSOR_UNKNOWN,
1015 { STRING_COMMA_LEN (".adx"), PROCESSOR_UNKNOWN,
1017 { STRING_COMMA_LEN (".rdseed"), PROCESSOR_UNKNOWN,
1018 CPU_RDSEED_FLAGS, 0 },
1019 { STRING_COMMA_LEN (".prfchw"), PROCESSOR_UNKNOWN,
1020 CPU_PRFCHW_FLAGS, 0 },
1021 { STRING_COMMA_LEN (".smap"), PROCESSOR_UNKNOWN,
1022 CPU_SMAP_FLAGS, 0 },
1023 { STRING_COMMA_LEN (".mpx"), PROCESSOR_UNKNOWN,
1025 { STRING_COMMA_LEN (".sha"), PROCESSOR_UNKNOWN,
1027 { STRING_COMMA_LEN (".clflushopt"), PROCESSOR_UNKNOWN,
1028 CPU_CLFLUSHOPT_FLAGS, 0 },
1029 { STRING_COMMA_LEN (".prefetchwt1"), PROCESSOR_UNKNOWN,
1030 CPU_PREFETCHWT1_FLAGS, 0 },
1031 { STRING_COMMA_LEN (".se1"), PROCESSOR_UNKNOWN,
1033 { STRING_COMMA_LEN (".clwb"), PROCESSOR_UNKNOWN,
1034 CPU_CLWB_FLAGS, 0 },
1035 { STRING_COMMA_LEN (".avx512ifma"), PROCESSOR_UNKNOWN,
1036 CPU_AVX512IFMA_FLAGS, 0 },
1037 { STRING_COMMA_LEN (".avx512vbmi"), PROCESSOR_UNKNOWN,
1038 CPU_AVX512VBMI_FLAGS, 0 },
1039 { STRING_COMMA_LEN (".avx512_4fmaps"), PROCESSOR_UNKNOWN,
1040 CPU_AVX512_4FMAPS_FLAGS, 0 },
1041 { STRING_COMMA_LEN (".avx512_4vnniw"), PROCESSOR_UNKNOWN,
1042 CPU_AVX512_4VNNIW_FLAGS, 0 },
1043 { STRING_COMMA_LEN (".avx512_vpopcntdq"), PROCESSOR_UNKNOWN,
1044 CPU_AVX512_VPOPCNTDQ_FLAGS, 0 },
1045 { STRING_COMMA_LEN (".avx512_vbmi2"), PROCESSOR_UNKNOWN,
1046 CPU_AVX512_VBMI2_FLAGS, 0 },
1047 { STRING_COMMA_LEN (".avx512_vnni"), PROCESSOR_UNKNOWN,
1048 CPU_AVX512_VNNI_FLAGS, 0 },
1049 { STRING_COMMA_LEN (".avx512_bitalg"), PROCESSOR_UNKNOWN,
1050 CPU_AVX512_BITALG_FLAGS, 0 },
1051 { STRING_COMMA_LEN (".clzero"), PROCESSOR_UNKNOWN,
1052 CPU_CLZERO_FLAGS, 0 },
1053 { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN,
1054 CPU_MWAITX_FLAGS, 0 },
1055 { STRING_COMMA_LEN (".ospke"), PROCESSOR_UNKNOWN,
1056 CPU_OSPKE_FLAGS, 0 },
1057 { STRING_COMMA_LEN (".rdpid"), PROCESSOR_UNKNOWN,
1058 CPU_RDPID_FLAGS, 0 },
1059 { STRING_COMMA_LEN (".ptwrite"), PROCESSOR_UNKNOWN,
1060 CPU_PTWRITE_FLAGS, 0 },
1061 { STRING_COMMA_LEN (".ibt"), PROCESSOR_UNKNOWN,
1063 { STRING_COMMA_LEN (".shstk"), PROCESSOR_UNKNOWN,
1064 CPU_SHSTK_FLAGS, 0 },
1065 { STRING_COMMA_LEN (".gfni"), PROCESSOR_UNKNOWN,
1066 CPU_GFNI_FLAGS, 0 },
1067 { STRING_COMMA_LEN (".vaes"), PROCESSOR_UNKNOWN,
1068 CPU_VAES_FLAGS, 0 },
1069 { STRING_COMMA_LEN (".vpclmulqdq"), PROCESSOR_UNKNOWN,
1070 CPU_VPCLMULQDQ_FLAGS, 0 },
1071 { STRING_COMMA_LEN (".wbnoinvd"), PROCESSOR_UNKNOWN,
1072 CPU_WBNOINVD_FLAGS, 0 },
1073 { STRING_COMMA_LEN (".pconfig"), PROCESSOR_UNKNOWN,
1074 CPU_PCONFIG_FLAGS, 0 },
1075 { STRING_COMMA_LEN (".waitpkg"), PROCESSOR_UNKNOWN,
1076 CPU_WAITPKG_FLAGS, 0 },
1077 { STRING_COMMA_LEN (".cldemote"), PROCESSOR_UNKNOWN,
1078 CPU_CLDEMOTE_FLAGS, 0 },
1079 { STRING_COMMA_LEN (".movdiri"), PROCESSOR_UNKNOWN,
1080 CPU_MOVDIRI_FLAGS, 0 },
1081 { STRING_COMMA_LEN (".movdir64b"), PROCESSOR_UNKNOWN,
1082 CPU_MOVDIR64B_FLAGS, 0 },
1083 { STRING_COMMA_LEN (".avx512_bf16"), PROCESSOR_UNKNOWN,
1084 CPU_AVX512_BF16_FLAGS, 0 },
1087 static const noarch_entry cpu_noarch[] =
1089 { STRING_COMMA_LEN ("no87"), CPU_ANY_X87_FLAGS },
1090 { STRING_COMMA_LEN ("no287"), CPU_ANY_287_FLAGS },
1091 { STRING_COMMA_LEN ("no387"), CPU_ANY_387_FLAGS },
1092 { STRING_COMMA_LEN ("no687"), CPU_ANY_687_FLAGS },
1093 { STRING_COMMA_LEN ("nocmov"), CPU_ANY_CMOV_FLAGS },
1094 { STRING_COMMA_LEN ("nofxsr"), CPU_ANY_FXSR_FLAGS },
1095 { STRING_COMMA_LEN ("nommx"), CPU_ANY_MMX_FLAGS },
1096 { STRING_COMMA_LEN ("nosse"), CPU_ANY_SSE_FLAGS },
1097 { STRING_COMMA_LEN ("nosse2"), CPU_ANY_SSE2_FLAGS },
1098 { STRING_COMMA_LEN ("nosse3"), CPU_ANY_SSE3_FLAGS },
1099 { STRING_COMMA_LEN ("nossse3"), CPU_ANY_SSSE3_FLAGS },
1100 { STRING_COMMA_LEN ("nosse4.1"), CPU_ANY_SSE4_1_FLAGS },
1101 { STRING_COMMA_LEN ("nosse4.2"), CPU_ANY_SSE4_2_FLAGS },
1102 { STRING_COMMA_LEN ("nosse4"), CPU_ANY_SSE4_1_FLAGS },
1103 { STRING_COMMA_LEN ("noavx"), CPU_ANY_AVX_FLAGS },
1104 { STRING_COMMA_LEN ("noavx2"), CPU_ANY_AVX2_FLAGS },
1105 { STRING_COMMA_LEN ("noavx512f"), CPU_ANY_AVX512F_FLAGS },
1106 { STRING_COMMA_LEN ("noavx512cd"), CPU_ANY_AVX512CD_FLAGS },
1107 { STRING_COMMA_LEN ("noavx512er"), CPU_ANY_AVX512ER_FLAGS },
1108 { STRING_COMMA_LEN ("noavx512pf"), CPU_ANY_AVX512PF_FLAGS },
1109 { STRING_COMMA_LEN ("noavx512dq"), CPU_ANY_AVX512DQ_FLAGS },
1110 { STRING_COMMA_LEN ("noavx512bw"), CPU_ANY_AVX512BW_FLAGS },
1111 { STRING_COMMA_LEN ("noavx512vl"), CPU_ANY_AVX512VL_FLAGS },
1112 { STRING_COMMA_LEN ("noavx512ifma"), CPU_ANY_AVX512IFMA_FLAGS },
1113 { STRING_COMMA_LEN ("noavx512vbmi"), CPU_ANY_AVX512VBMI_FLAGS },
1114 { STRING_COMMA_LEN ("noavx512_4fmaps"), CPU_ANY_AVX512_4FMAPS_FLAGS },
1115 { STRING_COMMA_LEN ("noavx512_4vnniw"), CPU_ANY_AVX512_4VNNIW_FLAGS },
1116 { STRING_COMMA_LEN ("noavx512_vpopcntdq"), CPU_ANY_AVX512_VPOPCNTDQ_FLAGS },
1117 { STRING_COMMA_LEN ("noavx512_vbmi2"), CPU_ANY_AVX512_VBMI2_FLAGS },
1118 { STRING_COMMA_LEN ("noavx512_vnni"), CPU_ANY_AVX512_VNNI_FLAGS },
1119 { STRING_COMMA_LEN ("noavx512_bitalg"), CPU_ANY_AVX512_BITALG_FLAGS },
1120 { STRING_COMMA_LEN ("noibt"), CPU_ANY_IBT_FLAGS },
1121 { STRING_COMMA_LEN ("noshstk"), CPU_ANY_SHSTK_FLAGS },
1122 { STRING_COMMA_LEN ("nomovdiri"), CPU_ANY_MOVDIRI_FLAGS },
1123 { STRING_COMMA_LEN ("nomovdir64b"), CPU_ANY_MOVDIR64B_FLAGS },
1124 { STRING_COMMA_LEN ("noavx512_bf16"), CPU_ANY_AVX512_BF16_FLAGS },
1128 /* Like s_lcomm_internal in gas/read.c but the alignment string
1129 is allowed to be optional. */
1132 pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size)
1139 && *input_line_pointer == ',')
1141 align = parse_align (needs_align - 1);
1143 if (align == (addressT) -1)
1158 bss_alloc (symbolP, size, align);
1163 pe_lcomm (int needs_align)
1165 s_comm_internal (needs_align * 2, pe_lcomm_internal);
1169 const pseudo_typeS md_pseudo_table[] =
1171 #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO)
1172 {"align", s_align_bytes, 0},
1174 {"align", s_align_ptwo, 0},
1176 {"arch", set_cpu_arch, 0},
1180 {"lcomm", pe_lcomm, 1},
1182 {"ffloat", float_cons, 'f'},
1183 {"dfloat", float_cons, 'd'},
1184 {"tfloat", float_cons, 'x'},
1186 {"slong", signed_cons, 4},
1187 {"noopt", s_ignore, 0},
1188 {"optim", s_ignore, 0},
1189 {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT},
1190 {"code16", set_code_flag, CODE_16BIT},
1191 {"code32", set_code_flag, CODE_32BIT},
1193 {"code64", set_code_flag, CODE_64BIT},
1195 {"intel_syntax", set_intel_syntax, 1},
1196 {"att_syntax", set_intel_syntax, 0},
1197 {"intel_mnemonic", set_intel_mnemonic, 1},
1198 {"att_mnemonic", set_intel_mnemonic, 0},
1199 {"allow_index_reg", set_allow_index_reg, 1},
1200 {"disallow_index_reg", set_allow_index_reg, 0},
1201 {"sse_check", set_check, 0},
1202 {"operand_check", set_check, 1},
1203 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
1204 {"largecomm", handle_large_common, 0},
1206 {"file", dwarf2_directive_file, 0},
1207 {"loc", dwarf2_directive_loc, 0},
1208 {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0},
1211 {"secrel32", pe_directive_secrel, 0},
1216 /* For interface with expression (). */
1217 extern char *input_line_pointer;
1219 /* Hash table for instruction mnemonic lookup. */
1220 static struct hash_control *op_hash;
1222 /* Hash table for register lookup. */
1223 static struct hash_control *reg_hash;
1225 /* Various efficient no-op patterns for aligning code labels.
1226 Note: Don't try to assemble the instructions in the comments.
1227 0L and 0w are not legal. */
1228 static const unsigned char f32_1[] =
1230 static const unsigned char f32_2[] =
1231 {0x66,0x90}; /* xchg %ax,%ax */
1232 static const unsigned char f32_3[] =
1233 {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */
1234 static const unsigned char f32_4[] =
1235 {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */
1236 static const unsigned char f32_6[] =
1237 {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */
1238 static const unsigned char f32_7[] =
1239 {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */
1240 static const unsigned char f16_3[] =
1241 {0x8d,0x74,0x00}; /* lea 0(%si),%si */
1242 static const unsigned char f16_4[] =
1243 {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */
1244 static const unsigned char jump_disp8[] =
1245 {0xeb}; /* jmp disp8 */
1246 static const unsigned char jump32_disp32[] =
1247 {0xe9}; /* jmp disp32 */
1248 static const unsigned char jump16_disp32[] =
1249 {0x66,0xe9}; /* jmp disp32 */
1250 /* 32-bit NOPs patterns. */
1251 static const unsigned char *const f32_patt[] = {
1252 f32_1, f32_2, f32_3, f32_4, NULL, f32_6, f32_7
1254 /* 16-bit NOPs patterns. */
1255 static const unsigned char *const f16_patt[] = {
1256 f32_1, f32_2, f16_3, f16_4
1258 /* nopl (%[re]ax) */
1259 static const unsigned char alt_3[] =
1261 /* nopl 0(%[re]ax) */
1262 static const unsigned char alt_4[] =
1263 {0x0f,0x1f,0x40,0x00};
1264 /* nopl 0(%[re]ax,%[re]ax,1) */
1265 static const unsigned char alt_5[] =
1266 {0x0f,0x1f,0x44,0x00,0x00};
1267 /* nopw 0(%[re]ax,%[re]ax,1) */
1268 static const unsigned char alt_6[] =
1269 {0x66,0x0f,0x1f,0x44,0x00,0x00};
1270 /* nopl 0L(%[re]ax) */
1271 static const unsigned char alt_7[] =
1272 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1273 /* nopl 0L(%[re]ax,%[re]ax,1) */
1274 static const unsigned char alt_8[] =
1275 {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1276 /* nopw 0L(%[re]ax,%[re]ax,1) */
1277 static const unsigned char alt_9[] =
1278 {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1279 /* nopw %cs:0L(%[re]ax,%[re]ax,1) */
1280 static const unsigned char alt_10[] =
1281 {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1282 /* data16 nopw %cs:0L(%eax,%eax,1) */
1283 static const unsigned char alt_11[] =
1284 {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1285 /* 32-bit and 64-bit NOPs patterns. */
1286 static const unsigned char *const alt_patt[] = {
1287 f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8,
1288 alt_9, alt_10, alt_11
1291 /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum
1292 size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */
1295 i386_output_nops (char *where, const unsigned char *const *patt,
1296 int count, int max_single_nop_size)
1299 /* Place the longer NOP first. */
1302 const unsigned char *nops = patt[max_single_nop_size - 1];
1304 /* Use the smaller one if the requsted one isn't available. */
1307 max_single_nop_size--;
1308 nops = patt[max_single_nop_size - 1];
1311 last = count % max_single_nop_size;
1314 for (offset = 0; offset < count; offset += max_single_nop_size)
1315 memcpy (where + offset, nops, max_single_nop_size);
1319 nops = patt[last - 1];
1322 /* Use the smaller one plus one-byte NOP if the needed one
1325 nops = patt[last - 1];
1326 memcpy (where + offset, nops, last);
1327 where[offset + last] = *patt[0];
1330 memcpy (where + offset, nops, last);
1335 fits_in_imm7 (offsetT num)
1337 return (num & 0x7f) == num;
1341 fits_in_imm31 (offsetT num)
1343 return (num & 0x7fffffff) == num;
1346 /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a
1347 single NOP instruction LIMIT. */
1350 i386_generate_nops (fragS *fragP, char *where, offsetT count, int limit)
1352 const unsigned char *const *patt = NULL;
1353 int max_single_nop_size;
1354 /* Maximum number of NOPs before switching to jump over NOPs. */
1355 int max_number_of_nops;
1357 switch (fragP->fr_type)
1366 /* We need to decide which NOP sequence to use for 32bit and
1367 64bit. When -mtune= is used:
1369 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and
1370 PROCESSOR_GENERIC32, f32_patt will be used.
1371 2. For the rest, alt_patt will be used.
1373 When -mtune= isn't used, alt_patt will be used if
1374 cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will
1377 When -march= or .arch is used, we can't use anything beyond
1378 cpu_arch_isa_flags. */
1380 if (flag_code == CODE_16BIT)
1383 max_single_nop_size = sizeof (f16_patt) / sizeof (f16_patt[0]);
1384 /* Limit number of NOPs to 2 in 16-bit mode. */
1385 max_number_of_nops = 2;
1389 if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN)
1391 /* PROCESSOR_UNKNOWN means that all ISAs may be used. */
1392 switch (cpu_arch_tune)
1394 case PROCESSOR_UNKNOWN:
1395 /* We use cpu_arch_isa_flags to check if we SHOULD
1396 optimize with nops. */
1397 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1402 case PROCESSOR_PENTIUM4:
1403 case PROCESSOR_NOCONA:
1404 case PROCESSOR_CORE:
1405 case PROCESSOR_CORE2:
1406 case PROCESSOR_COREI7:
1407 case PROCESSOR_L1OM:
1408 case PROCESSOR_K1OM:
1409 case PROCESSOR_GENERIC64:
1411 case PROCESSOR_ATHLON:
1413 case PROCESSOR_AMDFAM10:
1415 case PROCESSOR_ZNVER:
1419 case PROCESSOR_I386:
1420 case PROCESSOR_I486:
1421 case PROCESSOR_PENTIUM:
1422 case PROCESSOR_PENTIUMPRO:
1423 case PROCESSOR_IAMCU:
1424 case PROCESSOR_GENERIC32:
1431 switch (fragP->tc_frag_data.tune)
1433 case PROCESSOR_UNKNOWN:
1434 /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be
1435 PROCESSOR_UNKNOWN. */
1439 case PROCESSOR_I386:
1440 case PROCESSOR_I486:
1441 case PROCESSOR_PENTIUM:
1442 case PROCESSOR_IAMCU:
1444 case PROCESSOR_ATHLON:
1446 case PROCESSOR_AMDFAM10:
1448 case PROCESSOR_ZNVER:
1450 case PROCESSOR_GENERIC32:
1451 /* We use cpu_arch_isa_flags to check if we CAN optimize
1453 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1458 case PROCESSOR_PENTIUMPRO:
1459 case PROCESSOR_PENTIUM4:
1460 case PROCESSOR_NOCONA:
1461 case PROCESSOR_CORE:
1462 case PROCESSOR_CORE2:
1463 case PROCESSOR_COREI7:
1464 case PROCESSOR_L1OM:
1465 case PROCESSOR_K1OM:
1466 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1471 case PROCESSOR_GENERIC64:
1477 if (patt == f32_patt)
1479 max_single_nop_size = sizeof (f32_patt) / sizeof (f32_patt[0]);
1480 /* Limit number of NOPs to 2 for older processors. */
1481 max_number_of_nops = 2;
1485 max_single_nop_size = sizeof (alt_patt) / sizeof (alt_patt[0]);
1486 /* Limit number of NOPs to 7 for newer processors. */
1487 max_number_of_nops = 7;
1492 limit = max_single_nop_size;
1494 if (fragP->fr_type == rs_fill_nop)
1496 /* Output NOPs for .nop directive. */
1497 if (limit > max_single_nop_size)
1499 as_bad_where (fragP->fr_file, fragP->fr_line,
1500 _("invalid single nop size: %d "
1501 "(expect within [0, %d])"),
1502 limit, max_single_nop_size);
1507 fragP->fr_var = count;
1509 if ((count / max_single_nop_size) > max_number_of_nops)
1511 /* Generate jump over NOPs. */
1512 offsetT disp = count - 2;
1513 if (fits_in_imm7 (disp))
1515 /* Use "jmp disp8" if possible. */
1517 where[0] = jump_disp8[0];
1523 unsigned int size_of_jump;
1525 if (flag_code == CODE_16BIT)
1527 where[0] = jump16_disp32[0];
1528 where[1] = jump16_disp32[1];
1533 where[0] = jump32_disp32[0];
1537 count -= size_of_jump + 4;
1538 if (!fits_in_imm31 (count))
1540 as_bad_where (fragP->fr_file, fragP->fr_line,
1541 _("jump over nop padding out of range"));
1545 md_number_to_chars (where + size_of_jump, count, 4);
1546 where += size_of_jump + 4;
1550 /* Generate multiple NOPs. */
1551 i386_output_nops (where, patt, count, limit);
1555 operand_type_all_zero (const union i386_operand_type *x)
1557 switch (ARRAY_SIZE(x->array))
1568 return !x->array[0];
1575 operand_type_set (union i386_operand_type *x, unsigned int v)
1577 switch (ARRAY_SIZE(x->array))
1595 operand_type_equal (const union i386_operand_type *x,
1596 const union i386_operand_type *y)
1598 switch (ARRAY_SIZE(x->array))
1601 if (x->array[2] != y->array[2])
1605 if (x->array[1] != y->array[1])
1609 return x->array[0] == y->array[0];
1617 cpu_flags_all_zero (const union i386_cpu_flags *x)
1619 switch (ARRAY_SIZE(x->array))
1634 return !x->array[0];
1641 cpu_flags_equal (const union i386_cpu_flags *x,
1642 const union i386_cpu_flags *y)
1644 switch (ARRAY_SIZE(x->array))
1647 if (x->array[3] != y->array[3])
1651 if (x->array[2] != y->array[2])
1655 if (x->array[1] != y->array[1])
1659 return x->array[0] == y->array[0];
1667 cpu_flags_check_cpu64 (i386_cpu_flags f)
1669 return !((flag_code == CODE_64BIT && f.bitfield.cpuno64)
1670 || (flag_code != CODE_64BIT && f.bitfield.cpu64));
1673 static INLINE i386_cpu_flags
1674 cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y)
1676 switch (ARRAY_SIZE (x.array))
1679 x.array [3] &= y.array [3];
1682 x.array [2] &= y.array [2];
1685 x.array [1] &= y.array [1];
1688 x.array [0] &= y.array [0];
1696 static INLINE i386_cpu_flags
1697 cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y)
1699 switch (ARRAY_SIZE (x.array))
1702 x.array [3] |= y.array [3];
1705 x.array [2] |= y.array [2];
1708 x.array [1] |= y.array [1];
1711 x.array [0] |= y.array [0];
1719 static INLINE i386_cpu_flags
1720 cpu_flags_and_not (i386_cpu_flags x, i386_cpu_flags y)
1722 switch (ARRAY_SIZE (x.array))
1725 x.array [3] &= ~y.array [3];
1728 x.array [2] &= ~y.array [2];
1731 x.array [1] &= ~y.array [1];
1734 x.array [0] &= ~y.array [0];
1742 #define CPU_FLAGS_ARCH_MATCH 0x1
1743 #define CPU_FLAGS_64BIT_MATCH 0x2
1745 #define CPU_FLAGS_PERFECT_MATCH \
1746 (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH)
1748 /* Return CPU flags match bits. */
1751 cpu_flags_match (const insn_template *t)
1753 i386_cpu_flags x = t->cpu_flags;
1754 int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0;
1756 x.bitfield.cpu64 = 0;
1757 x.bitfield.cpuno64 = 0;
1759 if (cpu_flags_all_zero (&x))
1761 /* This instruction is available on all archs. */
1762 match |= CPU_FLAGS_ARCH_MATCH;
1766 /* This instruction is available only on some archs. */
1767 i386_cpu_flags cpu = cpu_arch_flags;
1769 /* AVX512VL is no standalone feature - match it and then strip it. */
1770 if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl)
1772 x.bitfield.cpuavx512vl = 0;
1774 cpu = cpu_flags_and (x, cpu);
1775 if (!cpu_flags_all_zero (&cpu))
1777 if (x.bitfield.cpuavx)
1779 /* We need to check a few extra flags with AVX. */
1780 if (cpu.bitfield.cpuavx
1781 && (!t->opcode_modifier.sse2avx || sse2avx)
1782 && (!x.bitfield.cpuaes || cpu.bitfield.cpuaes)
1783 && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni)
1784 && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul))
1785 match |= CPU_FLAGS_ARCH_MATCH;
1787 else if (x.bitfield.cpuavx512f)
1789 /* We need to check a few extra flags with AVX512F. */
1790 if (cpu.bitfield.cpuavx512f
1791 && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni)
1792 && (!x.bitfield.cpuvaes || cpu.bitfield.cpuvaes)
1793 && (!x.bitfield.cpuvpclmulqdq || cpu.bitfield.cpuvpclmulqdq))
1794 match |= CPU_FLAGS_ARCH_MATCH;
1797 match |= CPU_FLAGS_ARCH_MATCH;
1803 static INLINE i386_operand_type
1804 operand_type_and (i386_operand_type x, i386_operand_type y)
1806 switch (ARRAY_SIZE (x.array))
1809 x.array [2] &= y.array [2];
1812 x.array [1] &= y.array [1];
1815 x.array [0] &= y.array [0];
1823 static INLINE i386_operand_type
1824 operand_type_and_not (i386_operand_type x, i386_operand_type y)
1826 switch (ARRAY_SIZE (x.array))
1829 x.array [2] &= ~y.array [2];
1832 x.array [1] &= ~y.array [1];
1835 x.array [0] &= ~y.array [0];
1843 static INLINE i386_operand_type
1844 operand_type_or (i386_operand_type x, i386_operand_type y)
1846 switch (ARRAY_SIZE (x.array))
1849 x.array [2] |= y.array [2];
1852 x.array [1] |= y.array [1];
1855 x.array [0] |= y.array [0];
1863 static INLINE i386_operand_type
1864 operand_type_xor (i386_operand_type x, i386_operand_type y)
1866 switch (ARRAY_SIZE (x.array))
1869 x.array [2] ^= y.array [2];
1872 x.array [1] ^= y.array [1];
1875 x.array [0] ^= y.array [0];
1883 static const i386_operand_type acc32 = OPERAND_TYPE_ACC32;
1884 static const i386_operand_type acc64 = OPERAND_TYPE_ACC64;
1885 static const i386_operand_type disp16 = OPERAND_TYPE_DISP16;
1886 static const i386_operand_type disp32 = OPERAND_TYPE_DISP32;
1887 static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S;
1888 static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32;
1889 static const i386_operand_type anydisp
1890 = OPERAND_TYPE_ANYDISP;
1891 static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM;
1892 static const i386_operand_type regmask = OPERAND_TYPE_REGMASK;
1893 static const i386_operand_type imm8 = OPERAND_TYPE_IMM8;
1894 static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S;
1895 static const i386_operand_type imm16 = OPERAND_TYPE_IMM16;
1896 static const i386_operand_type imm32 = OPERAND_TYPE_IMM32;
1897 static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S;
1898 static const i386_operand_type imm64 = OPERAND_TYPE_IMM64;
1899 static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32;
1900 static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S;
1901 static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S;
1902 static const i386_operand_type vec_imm4 = OPERAND_TYPE_VEC_IMM4;
1913 operand_type_check (i386_operand_type t, enum operand_type c)
1918 return t.bitfield.reg;
1921 return (t.bitfield.imm8
1925 || t.bitfield.imm32s
1926 || t.bitfield.imm64);
1929 return (t.bitfield.disp8
1930 || t.bitfield.disp16
1931 || t.bitfield.disp32
1932 || t.bitfield.disp32s
1933 || t.bitfield.disp64);
1936 return (t.bitfield.disp8
1937 || t.bitfield.disp16
1938 || t.bitfield.disp32
1939 || t.bitfield.disp32s
1940 || t.bitfield.disp64
1941 || t.bitfield.baseindex);
1950 /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size
1951 between operand GIVEN and opeand WANTED for instruction template T. */
1954 match_operand_size (const insn_template *t, unsigned int wanted,
1957 return !((i.types[given].bitfield.byte
1958 && !t->operand_types[wanted].bitfield.byte)
1959 || (i.types[given].bitfield.word
1960 && !t->operand_types[wanted].bitfield.word)
1961 || (i.types[given].bitfield.dword
1962 && !t->operand_types[wanted].bitfield.dword)
1963 || (i.types[given].bitfield.qword
1964 && !t->operand_types[wanted].bitfield.qword)
1965 || (i.types[given].bitfield.tbyte
1966 && !t->operand_types[wanted].bitfield.tbyte));
1969 /* Return 1 if there is no conflict in SIMD register between operand
1970 GIVEN and opeand WANTED for instruction template T. */
1973 match_simd_size (const insn_template *t, unsigned int wanted,
1976 return !((i.types[given].bitfield.xmmword
1977 && !t->operand_types[wanted].bitfield.xmmword)
1978 || (i.types[given].bitfield.ymmword
1979 && !t->operand_types[wanted].bitfield.ymmword)
1980 || (i.types[given].bitfield.zmmword
1981 && !t->operand_types[wanted].bitfield.zmmword));
1984 /* Return 1 if there is no conflict in any size between operand GIVEN
1985 and opeand WANTED for instruction template T. */
1988 match_mem_size (const insn_template *t, unsigned int wanted,
1991 return (match_operand_size (t, wanted, given)
1992 && !((i.types[given].bitfield.unspecified
1994 && !t->operand_types[wanted].bitfield.unspecified)
1995 || (i.types[given].bitfield.fword
1996 && !t->operand_types[wanted].bitfield.fword)
1997 /* For scalar opcode templates to allow register and memory
1998 operands at the same time, some special casing is needed
1999 here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and
2000 down-conversion vpmov*. */
2001 || ((t->operand_types[wanted].bitfield.regsimd
2002 && !t->opcode_modifier.broadcast
2003 && (t->operand_types[wanted].bitfield.byte
2004 || t->operand_types[wanted].bitfield.word
2005 || t->operand_types[wanted].bitfield.dword
2006 || t->operand_types[wanted].bitfield.qword))
2007 ? (i.types[given].bitfield.xmmword
2008 || i.types[given].bitfield.ymmword
2009 || i.types[given].bitfield.zmmword)
2010 : !match_simd_size(t, wanted, given))));
2013 /* Return value has MATCH_STRAIGHT set if there is no size conflict on any
2014 operands for instruction template T, and it has MATCH_REVERSE set if there
2015 is no size conflict on any operands for the template with operands reversed
2016 (and the template allows for reversing in the first place). */
2018 #define MATCH_STRAIGHT 1
2019 #define MATCH_REVERSE 2
2021 static INLINE unsigned int
2022 operand_size_match (const insn_template *t)
2024 unsigned int j, match = MATCH_STRAIGHT;
2026 /* Don't check jump instructions. */
2027 if (t->opcode_modifier.jump
2028 || t->opcode_modifier.jumpbyte
2029 || t->opcode_modifier.jumpdword
2030 || t->opcode_modifier.jumpintersegment)
2033 /* Check memory and accumulator operand size. */
2034 for (j = 0; j < i.operands; j++)
2036 if (!i.types[j].bitfield.reg && !i.types[j].bitfield.regsimd
2037 && t->operand_types[j].bitfield.anysize)
2040 if (t->operand_types[j].bitfield.reg
2041 && !match_operand_size (t, j, j))
2047 if (t->operand_types[j].bitfield.regsimd
2048 && !match_simd_size (t, j, j))
2054 if (t->operand_types[j].bitfield.acc
2055 && (!match_operand_size (t, j, j) || !match_simd_size (t, j, j)))
2061 if ((i.flags[j] & Operand_Mem) && !match_mem_size (t, j, j))
2068 if (!t->opcode_modifier.d)
2072 i.error = operand_size_mismatch;
2076 /* Check reverse. */
2077 gas_assert (i.operands >= 2 && i.operands <= 3);
2079 for (j = 0; j < i.operands; j++)
2081 unsigned int given = i.operands - j - 1;
2083 if (t->operand_types[j].bitfield.reg
2084 && !match_operand_size (t, j, given))
2087 if (t->operand_types[j].bitfield.regsimd
2088 && !match_simd_size (t, j, given))
2091 if (t->operand_types[j].bitfield.acc
2092 && (!match_operand_size (t, j, given)
2093 || !match_simd_size (t, j, given)))
2096 if ((i.flags[given] & Operand_Mem) && !match_mem_size (t, j, given))
2100 return match | MATCH_REVERSE;
2104 operand_type_match (i386_operand_type overlap,
2105 i386_operand_type given)
2107 i386_operand_type temp = overlap;
2109 temp.bitfield.jumpabsolute = 0;
2110 temp.bitfield.unspecified = 0;
2111 temp.bitfield.byte = 0;
2112 temp.bitfield.word = 0;
2113 temp.bitfield.dword = 0;
2114 temp.bitfield.fword = 0;
2115 temp.bitfield.qword = 0;
2116 temp.bitfield.tbyte = 0;
2117 temp.bitfield.xmmword = 0;
2118 temp.bitfield.ymmword = 0;
2119 temp.bitfield.zmmword = 0;
2120 if (operand_type_all_zero (&temp))
2123 if (given.bitfield.baseindex == overlap.bitfield.baseindex
2124 && given.bitfield.jumpabsolute == overlap.bitfield.jumpabsolute)
2128 i.error = operand_type_mismatch;
2132 /* If given types g0 and g1 are registers they must be of the same type
2133 unless the expected operand type register overlap is null.
2134 Memory operand size of certain SIMD instructions is also being checked
2138 operand_type_register_match (i386_operand_type g0,
2139 i386_operand_type t0,
2140 i386_operand_type g1,
2141 i386_operand_type t1)
2143 if (!g0.bitfield.reg
2144 && !g0.bitfield.regsimd
2145 && (!operand_type_check (g0, anymem)
2146 || g0.bitfield.unspecified
2147 || !t0.bitfield.regsimd))
2150 if (!g1.bitfield.reg
2151 && !g1.bitfield.regsimd
2152 && (!operand_type_check (g1, anymem)
2153 || g1.bitfield.unspecified
2154 || !t1.bitfield.regsimd))
2157 if (g0.bitfield.byte == g1.bitfield.byte
2158 && g0.bitfield.word == g1.bitfield.word
2159 && g0.bitfield.dword == g1.bitfield.dword
2160 && g0.bitfield.qword == g1.bitfield.qword
2161 && g0.bitfield.xmmword == g1.bitfield.xmmword
2162 && g0.bitfield.ymmword == g1.bitfield.ymmword
2163 && g0.bitfield.zmmword == g1.bitfield.zmmword)
2166 if (!(t0.bitfield.byte & t1.bitfield.byte)
2167 && !(t0.bitfield.word & t1.bitfield.word)
2168 && !(t0.bitfield.dword & t1.bitfield.dword)
2169 && !(t0.bitfield.qword & t1.bitfield.qword)
2170 && !(t0.bitfield.xmmword & t1.bitfield.xmmword)
2171 && !(t0.bitfield.ymmword & t1.bitfield.ymmword)
2172 && !(t0.bitfield.zmmword & t1.bitfield.zmmword))
2175 i.error = register_type_mismatch;
2180 static INLINE unsigned int
2181 register_number (const reg_entry *r)
2183 unsigned int nr = r->reg_num;
2185 if (r->reg_flags & RegRex)
2188 if (r->reg_flags & RegVRex)
2194 static INLINE unsigned int
2195 mode_from_disp_size (i386_operand_type t)
2197 if (t.bitfield.disp8)
2199 else if (t.bitfield.disp16
2200 || t.bitfield.disp32
2201 || t.bitfield.disp32s)
2208 fits_in_signed_byte (addressT num)
2210 return num + 0x80 <= 0xff;
2214 fits_in_unsigned_byte (addressT num)
2220 fits_in_unsigned_word (addressT num)
2222 return num <= 0xffff;
2226 fits_in_signed_word (addressT num)
2228 return num + 0x8000 <= 0xffff;
2232 fits_in_signed_long (addressT num ATTRIBUTE_UNUSED)
2237 return num + 0x80000000 <= 0xffffffff;
2239 } /* fits_in_signed_long() */
2242 fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED)
2247 return num <= 0xffffffff;
2249 } /* fits_in_unsigned_long() */
2252 fits_in_disp8 (offsetT num)
2254 int shift = i.memshift;
2260 mask = (1 << shift) - 1;
2262 /* Return 0 if NUM isn't properly aligned. */
2266 /* Check if NUM will fit in 8bit after shift. */
2267 return fits_in_signed_byte (num >> shift);
2271 fits_in_imm4 (offsetT num)
2273 return (num & 0xf) == num;
2276 static i386_operand_type
2277 smallest_imm_type (offsetT num)
2279 i386_operand_type t;
2281 operand_type_set (&t, 0);
2282 t.bitfield.imm64 = 1;
2284 if (cpu_arch_tune != PROCESSOR_I486 && num == 1)
2286 /* This code is disabled on the 486 because all the Imm1 forms
2287 in the opcode table are slower on the i486. They're the
2288 versions with the implicitly specified single-position
2289 displacement, which has another syntax if you really want to
2291 t.bitfield.imm1 = 1;
2292 t.bitfield.imm8 = 1;
2293 t.bitfield.imm8s = 1;
2294 t.bitfield.imm16 = 1;
2295 t.bitfield.imm32 = 1;
2296 t.bitfield.imm32s = 1;
2298 else if (fits_in_signed_byte (num))
2300 t.bitfield.imm8 = 1;
2301 t.bitfield.imm8s = 1;
2302 t.bitfield.imm16 = 1;
2303 t.bitfield.imm32 = 1;
2304 t.bitfield.imm32s = 1;
2306 else if (fits_in_unsigned_byte (num))
2308 t.bitfield.imm8 = 1;
2309 t.bitfield.imm16 = 1;
2310 t.bitfield.imm32 = 1;
2311 t.bitfield.imm32s = 1;
2313 else if (fits_in_signed_word (num) || fits_in_unsigned_word (num))
2315 t.bitfield.imm16 = 1;
2316 t.bitfield.imm32 = 1;
2317 t.bitfield.imm32s = 1;
2319 else if (fits_in_signed_long (num))
2321 t.bitfield.imm32 = 1;
2322 t.bitfield.imm32s = 1;
2324 else if (fits_in_unsigned_long (num))
2325 t.bitfield.imm32 = 1;
2331 offset_in_range (offsetT val, int size)
2337 case 1: mask = ((addressT) 1 << 8) - 1; break;
2338 case 2: mask = ((addressT) 1 << 16) - 1; break;
2339 case 4: mask = ((addressT) 2 << 31) - 1; break;
2341 case 8: mask = ((addressT) 2 << 63) - 1; break;
2347 /* If BFD64, sign extend val for 32bit address mode. */
2348 if (flag_code != CODE_64BIT
2349 || i.prefix[ADDR_PREFIX])
2350 if ((val & ~(((addressT) 2 << 31) - 1)) == 0)
2351 val = (val ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31);
2354 if ((val & ~mask) != 0 && (val & ~mask) != ~mask)
2356 char buf1[40], buf2[40];
2358 sprint_value (buf1, val);
2359 sprint_value (buf2, val & mask);
2360 as_warn (_("%s shortened to %s"), buf1, buf2);
2375 a. PREFIX_EXIST if attempting to add a prefix where one from the
2376 same class already exists.
2377 b. PREFIX_LOCK if lock prefix is added.
2378 c. PREFIX_REP if rep/repne prefix is added.
2379 d. PREFIX_DS if ds prefix is added.
2380 e. PREFIX_OTHER if other prefix is added.
2383 static enum PREFIX_GROUP
2384 add_prefix (unsigned int prefix)
2386 enum PREFIX_GROUP ret = PREFIX_OTHER;
2389 if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16
2390 && flag_code == CODE_64BIT)
2392 if ((i.prefix[REX_PREFIX] & prefix & REX_W)
2393 || (i.prefix[REX_PREFIX] & prefix & REX_R)
2394 || (i.prefix[REX_PREFIX] & prefix & REX_X)
2395 || (i.prefix[REX_PREFIX] & prefix & REX_B))
2406 case DS_PREFIX_OPCODE:
2409 case CS_PREFIX_OPCODE:
2410 case ES_PREFIX_OPCODE:
2411 case FS_PREFIX_OPCODE:
2412 case GS_PREFIX_OPCODE:
2413 case SS_PREFIX_OPCODE:
2417 case REPNE_PREFIX_OPCODE:
2418 case REPE_PREFIX_OPCODE:
2423 case LOCK_PREFIX_OPCODE:
2432 case ADDR_PREFIX_OPCODE:
2436 case DATA_PREFIX_OPCODE:
2440 if (i.prefix[q] != 0)
2448 i.prefix[q] |= prefix;
2451 as_bad (_("same type of prefix used twice"));
2457 update_code_flag (int value, int check)
2459 PRINTF_LIKE ((*as_error));
2461 flag_code = (enum flag_code) value;
2462 if (flag_code == CODE_64BIT)
2464 cpu_arch_flags.bitfield.cpu64 = 1;
2465 cpu_arch_flags.bitfield.cpuno64 = 0;
2469 cpu_arch_flags.bitfield.cpu64 = 0;
2470 cpu_arch_flags.bitfield.cpuno64 = 1;
2472 if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm )
2475 as_error = as_fatal;
2478 (*as_error) (_("64bit mode not supported on `%s'."),
2479 cpu_arch_name ? cpu_arch_name : default_arch);
2481 if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386)
2484 as_error = as_fatal;
2487 (*as_error) (_("32bit mode not supported on `%s'."),
2488 cpu_arch_name ? cpu_arch_name : default_arch);
2490 stackop_size = '\0';
2494 set_code_flag (int value)
2496 update_code_flag (value, 0);
2500 set_16bit_gcc_code_flag (int new_code_flag)
2502 flag_code = (enum flag_code) new_code_flag;
2503 if (flag_code != CODE_16BIT)
2505 cpu_arch_flags.bitfield.cpu64 = 0;
2506 cpu_arch_flags.bitfield.cpuno64 = 1;
2507 stackop_size = LONG_MNEM_SUFFIX;
2511 set_intel_syntax (int syntax_flag)
2513 /* Find out if register prefixing is specified. */
2514 int ask_naked_reg = 0;
2517 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2520 int e = get_symbol_name (&string);
2522 if (strcmp (string, "prefix") == 0)
2524 else if (strcmp (string, "noprefix") == 0)
2527 as_bad (_("bad argument to syntax directive."));
2528 (void) restore_line_pointer (e);
2530 demand_empty_rest_of_line ();
2532 intel_syntax = syntax_flag;
2534 if (ask_naked_reg == 0)
2535 allow_naked_reg = (intel_syntax
2536 && (bfd_get_symbol_leading_char (stdoutput) != '\0'));
2538 allow_naked_reg = (ask_naked_reg < 0);
2540 expr_set_rank (O_full_ptr, syntax_flag ? 10 : 0);
2542 identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0;
2543 identifier_chars['$'] = intel_syntax ? '$' : 0;
2544 register_prefix = allow_naked_reg ? "" : "%";
2548 set_intel_mnemonic (int mnemonic_flag)
2550 intel_mnemonic = mnemonic_flag;
2554 set_allow_index_reg (int flag)
2556 allow_index_reg = flag;
2560 set_check (int what)
2562 enum check_kind *kind;
2567 kind = &operand_check;
2578 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2581 int e = get_symbol_name (&string);
2583 if (strcmp (string, "none") == 0)
2585 else if (strcmp (string, "warning") == 0)
2586 *kind = check_warning;
2587 else if (strcmp (string, "error") == 0)
2588 *kind = check_error;
2590 as_bad (_("bad argument to %s_check directive."), str);
2591 (void) restore_line_pointer (e);
2594 as_bad (_("missing argument for %s_check directive"), str);
2596 demand_empty_rest_of_line ();
2600 check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED,
2601 i386_cpu_flags new_flag ATTRIBUTE_UNUSED)
2603 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2604 static const char *arch;
2606 /* Intel LIOM is only supported on ELF. */
2612 /* Use cpu_arch_name if it is set in md_parse_option. Otherwise
2613 use default_arch. */
2614 arch = cpu_arch_name;
2616 arch = default_arch;
2619 /* If we are targeting Intel MCU, we must enable it. */
2620 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_IAMCU
2621 || new_flag.bitfield.cpuiamcu)
2624 /* If we are targeting Intel L1OM, we must enable it. */
2625 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_L1OM
2626 || new_flag.bitfield.cpul1om)
2629 /* If we are targeting Intel K1OM, we must enable it. */
2630 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_K1OM
2631 || new_flag.bitfield.cpuk1om)
2634 as_bad (_("`%s' is not supported on `%s'"), name, arch);
2639 set_cpu_arch (int dummy ATTRIBUTE_UNUSED)
2643 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2646 int e = get_symbol_name (&string);
2648 i386_cpu_flags flags;
2650 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
2652 if (strcmp (string, cpu_arch[j].name) == 0)
2654 check_cpu_arch_compatible (string, cpu_arch[j].flags);
2658 cpu_arch_name = cpu_arch[j].name;
2659 cpu_sub_arch_name = NULL;
2660 cpu_arch_flags = cpu_arch[j].flags;
2661 if (flag_code == CODE_64BIT)
2663 cpu_arch_flags.bitfield.cpu64 = 1;
2664 cpu_arch_flags.bitfield.cpuno64 = 0;
2668 cpu_arch_flags.bitfield.cpu64 = 0;
2669 cpu_arch_flags.bitfield.cpuno64 = 1;
2671 cpu_arch_isa = cpu_arch[j].type;
2672 cpu_arch_isa_flags = cpu_arch[j].flags;
2673 if (!cpu_arch_tune_set)
2675 cpu_arch_tune = cpu_arch_isa;
2676 cpu_arch_tune_flags = cpu_arch_isa_flags;
2681 flags = cpu_flags_or (cpu_arch_flags,
2684 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
2686 if (cpu_sub_arch_name)
2688 char *name = cpu_sub_arch_name;
2689 cpu_sub_arch_name = concat (name,
2691 (const char *) NULL);
2695 cpu_sub_arch_name = xstrdup (cpu_arch[j].name);
2696 cpu_arch_flags = flags;
2697 cpu_arch_isa_flags = flags;
2701 = cpu_flags_or (cpu_arch_isa_flags,
2703 (void) restore_line_pointer (e);
2704 demand_empty_rest_of_line ();
2709 if (*string == '.' && j >= ARRAY_SIZE (cpu_arch))
2711 /* Disable an ISA extension. */
2712 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
2713 if (strcmp (string + 1, cpu_noarch [j].name) == 0)
2715 flags = cpu_flags_and_not (cpu_arch_flags,
2716 cpu_noarch[j].flags);
2717 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
2719 if (cpu_sub_arch_name)
2721 char *name = cpu_sub_arch_name;
2722 cpu_sub_arch_name = concat (name, string,
2723 (const char *) NULL);
2727 cpu_sub_arch_name = xstrdup (string);
2728 cpu_arch_flags = flags;
2729 cpu_arch_isa_flags = flags;
2731 (void) restore_line_pointer (e);
2732 demand_empty_rest_of_line ();
2736 j = ARRAY_SIZE (cpu_arch);
2739 if (j >= ARRAY_SIZE (cpu_arch))
2740 as_bad (_("no such architecture: `%s'"), string);
2742 *input_line_pointer = e;
2745 as_bad (_("missing cpu architecture"));
2747 no_cond_jump_promotion = 0;
2748 if (*input_line_pointer == ','
2749 && !is_end_of_line[(unsigned char) input_line_pointer[1]])
2754 ++input_line_pointer;
2755 e = get_symbol_name (&string);
2757 if (strcmp (string, "nojumps") == 0)
2758 no_cond_jump_promotion = 1;
2759 else if (strcmp (string, "jumps") == 0)
2762 as_bad (_("no such architecture modifier: `%s'"), string);
2764 (void) restore_line_pointer (e);
2767 demand_empty_rest_of_line ();
2770 enum bfd_architecture
2773 if (cpu_arch_isa == PROCESSOR_L1OM)
2775 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2776 || flag_code != CODE_64BIT)
2777 as_fatal (_("Intel L1OM is 64bit ELF only"));
2778 return bfd_arch_l1om;
2780 else if (cpu_arch_isa == PROCESSOR_K1OM)
2782 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2783 || flag_code != CODE_64BIT)
2784 as_fatal (_("Intel K1OM is 64bit ELF only"));
2785 return bfd_arch_k1om;
2787 else if (cpu_arch_isa == PROCESSOR_IAMCU)
2789 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2790 || flag_code == CODE_64BIT)
2791 as_fatal (_("Intel MCU is 32bit ELF only"));
2792 return bfd_arch_iamcu;
2795 return bfd_arch_i386;
2801 if (!strncmp (default_arch, "x86_64", 6))
2803 if (cpu_arch_isa == PROCESSOR_L1OM)
2805 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2806 || default_arch[6] != '\0')
2807 as_fatal (_("Intel L1OM is 64bit ELF only"));
2808 return bfd_mach_l1om;
2810 else if (cpu_arch_isa == PROCESSOR_K1OM)
2812 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2813 || default_arch[6] != '\0')
2814 as_fatal (_("Intel K1OM is 64bit ELF only"));
2815 return bfd_mach_k1om;
2817 else if (default_arch[6] == '\0')
2818 return bfd_mach_x86_64;
2820 return bfd_mach_x64_32;
2822 else if (!strcmp (default_arch, "i386")
2823 || !strcmp (default_arch, "iamcu"))
2825 if (cpu_arch_isa == PROCESSOR_IAMCU)
2827 if (OUTPUT_FLAVOR != bfd_target_elf_flavour)
2828 as_fatal (_("Intel MCU is 32bit ELF only"));
2829 return bfd_mach_i386_iamcu;
2832 return bfd_mach_i386_i386;
2835 as_fatal (_("unknown architecture"));
2841 const char *hash_err;
2843 /* Support pseudo prefixes like {disp32}. */
2844 lex_type ['{'] = LEX_BEGIN_NAME;
2846 /* Initialize op_hash hash table. */
2847 op_hash = hash_new ();
2850 const insn_template *optab;
2851 templates *core_optab;
2853 /* Setup for loop. */
2855 core_optab = XNEW (templates);
2856 core_optab->start = optab;
2861 if (optab->name == NULL
2862 || strcmp (optab->name, (optab - 1)->name) != 0)
2864 /* different name --> ship out current template list;
2865 add to hash table; & begin anew. */
2866 core_optab->end = optab;
2867 hash_err = hash_insert (op_hash,
2869 (void *) core_optab);
2872 as_fatal (_("can't hash %s: %s"),
2876 if (optab->name == NULL)
2878 core_optab = XNEW (templates);
2879 core_optab->start = optab;
2884 /* Initialize reg_hash hash table. */
2885 reg_hash = hash_new ();
2887 const reg_entry *regtab;
2888 unsigned int regtab_size = i386_regtab_size;
2890 for (regtab = i386_regtab; regtab_size--; regtab++)
2892 hash_err = hash_insert (reg_hash, regtab->reg_name, (void *) regtab);
2894 as_fatal (_("can't hash %s: %s"),
2900 /* Fill in lexical tables: mnemonic_chars, operand_chars. */
2905 for (c = 0; c < 256; c++)
2910 mnemonic_chars[c] = c;
2911 register_chars[c] = c;
2912 operand_chars[c] = c;
2914 else if (ISLOWER (c))
2916 mnemonic_chars[c] = c;
2917 register_chars[c] = c;
2918 operand_chars[c] = c;
2920 else if (ISUPPER (c))
2922 mnemonic_chars[c] = TOLOWER (c);
2923 register_chars[c] = mnemonic_chars[c];
2924 operand_chars[c] = c;
2926 else if (c == '{' || c == '}')
2928 mnemonic_chars[c] = c;
2929 operand_chars[c] = c;
2932 if (ISALPHA (c) || ISDIGIT (c))
2933 identifier_chars[c] = c;
2936 identifier_chars[c] = c;
2937 operand_chars[c] = c;
2942 identifier_chars['@'] = '@';
2945 identifier_chars['?'] = '?';
2946 operand_chars['?'] = '?';
2948 digit_chars['-'] = '-';
2949 mnemonic_chars['_'] = '_';
2950 mnemonic_chars['-'] = '-';
2951 mnemonic_chars['.'] = '.';
2952 identifier_chars['_'] = '_';
2953 identifier_chars['.'] = '.';
2955 for (p = operand_special_chars; *p != '\0'; p++)
2956 operand_chars[(unsigned char) *p] = *p;
2959 if (flag_code == CODE_64BIT)
2961 #if defined (OBJ_COFF) && defined (TE_PE)
2962 x86_dwarf2_return_column = (OUTPUT_FLAVOR == bfd_target_coff_flavour
2965 x86_dwarf2_return_column = 16;
2967 x86_cie_data_alignment = -8;
2971 x86_dwarf2_return_column = 8;
2972 x86_cie_data_alignment = -4;
2977 i386_print_statistics (FILE *file)
2979 hash_print_statistics (file, "i386 opcode", op_hash);
2980 hash_print_statistics (file, "i386 register", reg_hash);
2985 /* Debugging routines for md_assemble. */
2986 static void pte (insn_template *);
2987 static void pt (i386_operand_type);
2988 static void pe (expressionS *);
2989 static void ps (symbolS *);
2992 pi (char *line, i386_insn *x)
2996 fprintf (stdout, "%s: template ", line);
2998 fprintf (stdout, " address: base %s index %s scale %x\n",
2999 x->base_reg ? x->base_reg->reg_name : "none",
3000 x->index_reg ? x->index_reg->reg_name : "none",
3001 x->log2_scale_factor);
3002 fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n",
3003 x->rm.mode, x->rm.reg, x->rm.regmem);
3004 fprintf (stdout, " sib: base %x index %x scale %x\n",
3005 x->sib.base, x->sib.index, x->sib.scale);
3006 fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n",
3007 (x->rex & REX_W) != 0,
3008 (x->rex & REX_R) != 0,
3009 (x->rex & REX_X) != 0,
3010 (x->rex & REX_B) != 0);
3011 for (j = 0; j < x->operands; j++)
3013 fprintf (stdout, " #%d: ", j + 1);
3015 fprintf (stdout, "\n");
3016 if (x->types[j].bitfield.reg
3017 || x->types[j].bitfield.regmmx
3018 || x->types[j].bitfield.regsimd
3019 || x->types[j].bitfield.sreg2
3020 || x->types[j].bitfield.sreg3
3021 || x->types[j].bitfield.control
3022 || x->types[j].bitfield.debug
3023 || x->types[j].bitfield.test)
3024 fprintf (stdout, "%s\n", x->op[j].regs->reg_name);
3025 if (operand_type_check (x->types[j], imm))
3027 if (operand_type_check (x->types[j], disp))
3028 pe (x->op[j].disps);
3033 pte (insn_template *t)
3036 fprintf (stdout, " %d operands ", t->operands);
3037 fprintf (stdout, "opcode %x ", t->base_opcode);
3038 if (t->extension_opcode != None)
3039 fprintf (stdout, "ext %x ", t->extension_opcode);
3040 if (t->opcode_modifier.d)
3041 fprintf (stdout, "D");
3042 if (t->opcode_modifier.w)
3043 fprintf (stdout, "W");
3044 fprintf (stdout, "\n");
3045 for (j = 0; j < t->operands; j++)
3047 fprintf (stdout, " #%d type ", j + 1);
3048 pt (t->operand_types[j]);
3049 fprintf (stdout, "\n");
3056 fprintf (stdout, " operation %d\n", e->X_op);
3057 fprintf (stdout, " add_number %ld (%lx)\n",
3058 (long) e->X_add_number, (long) e->X_add_number);
3059 if (e->X_add_symbol)
3061 fprintf (stdout, " add_symbol ");
3062 ps (e->X_add_symbol);
3063 fprintf (stdout, "\n");
3067 fprintf (stdout, " op_symbol ");
3068 ps (e->X_op_symbol);
3069 fprintf (stdout, "\n");
3076 fprintf (stdout, "%s type %s%s",
3078 S_IS_EXTERNAL (s) ? "EXTERNAL " : "",
3079 segment_name (S_GET_SEGMENT (s)));
3082 static struct type_name
3084 i386_operand_type mask;
3087 const type_names[] =
3089 { OPERAND_TYPE_REG8, "r8" },
3090 { OPERAND_TYPE_REG16, "r16" },
3091 { OPERAND_TYPE_REG32, "r32" },
3092 { OPERAND_TYPE_REG64, "r64" },
3093 { OPERAND_TYPE_IMM8, "i8" },
3094 { OPERAND_TYPE_IMM8, "i8s" },
3095 { OPERAND_TYPE_IMM16, "i16" },
3096 { OPERAND_TYPE_IMM32, "i32" },
3097 { OPERAND_TYPE_IMM32S, "i32s" },
3098 { OPERAND_TYPE_IMM64, "i64" },
3099 { OPERAND_TYPE_IMM1, "i1" },
3100 { OPERAND_TYPE_BASEINDEX, "BaseIndex" },
3101 { OPERAND_TYPE_DISP8, "d8" },
3102 { OPERAND_TYPE_DISP16, "d16" },
3103 { OPERAND_TYPE_DISP32, "d32" },
3104 { OPERAND_TYPE_DISP32S, "d32s" },
3105 { OPERAND_TYPE_DISP64, "d64" },
3106 { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" },
3107 { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" },
3108 { OPERAND_TYPE_CONTROL, "control reg" },
3109 { OPERAND_TYPE_TEST, "test reg" },
3110 { OPERAND_TYPE_DEBUG, "debug reg" },
3111 { OPERAND_TYPE_FLOATREG, "FReg" },
3112 { OPERAND_TYPE_FLOATACC, "FAcc" },
3113 { OPERAND_TYPE_SREG2, "SReg2" },
3114 { OPERAND_TYPE_SREG3, "SReg3" },
3115 { OPERAND_TYPE_ACC, "Acc" },
3116 { OPERAND_TYPE_JUMPABSOLUTE, "Jump Absolute" },
3117 { OPERAND_TYPE_REGMMX, "rMMX" },
3118 { OPERAND_TYPE_REGXMM, "rXMM" },
3119 { OPERAND_TYPE_REGYMM, "rYMM" },
3120 { OPERAND_TYPE_REGZMM, "rZMM" },
3121 { OPERAND_TYPE_REGMASK, "Mask reg" },
3122 { OPERAND_TYPE_ESSEG, "es" },
3126 pt (i386_operand_type t)
3129 i386_operand_type a;
3131 for (j = 0; j < ARRAY_SIZE (type_names); j++)
3133 a = operand_type_and (t, type_names[j].mask);
3134 if (!operand_type_all_zero (&a))
3135 fprintf (stdout, "%s, ", type_names[j].name);
3140 #endif /* DEBUG386 */
3142 static bfd_reloc_code_real_type
3143 reloc (unsigned int size,
3146 bfd_reloc_code_real_type other)
3148 if (other != NO_RELOC)
3150 reloc_howto_type *rel;
3155 case BFD_RELOC_X86_64_GOT32:
3156 return BFD_RELOC_X86_64_GOT64;
3158 case BFD_RELOC_X86_64_GOTPLT64:
3159 return BFD_RELOC_X86_64_GOTPLT64;
3161 case BFD_RELOC_X86_64_PLTOFF64:
3162 return BFD_RELOC_X86_64_PLTOFF64;
3164 case BFD_RELOC_X86_64_GOTPC32:
3165 other = BFD_RELOC_X86_64_GOTPC64;
3167 case BFD_RELOC_X86_64_GOTPCREL:
3168 other = BFD_RELOC_X86_64_GOTPCREL64;
3170 case BFD_RELOC_X86_64_TPOFF32:
3171 other = BFD_RELOC_X86_64_TPOFF64;
3173 case BFD_RELOC_X86_64_DTPOFF32:
3174 other = BFD_RELOC_X86_64_DTPOFF64;
3180 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3181 if (other == BFD_RELOC_SIZE32)
3184 other = BFD_RELOC_SIZE64;
3187 as_bad (_("there are no pc-relative size relocations"));
3193 /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */
3194 if (size == 4 && (flag_code != CODE_64BIT || disallow_64bit_reloc))
3197 rel = bfd_reloc_type_lookup (stdoutput, other);
3199 as_bad (_("unknown relocation (%u)"), other);
3200 else if (size != bfd_get_reloc_size (rel))
3201 as_bad (_("%u-byte relocation cannot be applied to %u-byte field"),
3202 bfd_get_reloc_size (rel),
3204 else if (pcrel && !rel->pc_relative)
3205 as_bad (_("non-pc-relative relocation for pc-relative field"));
3206 else if ((rel->complain_on_overflow == complain_overflow_signed
3208 || (rel->complain_on_overflow == complain_overflow_unsigned
3210 as_bad (_("relocated field and relocation type differ in signedness"));
3219 as_bad (_("there are no unsigned pc-relative relocations"));
3222 case 1: return BFD_RELOC_8_PCREL;
3223 case 2: return BFD_RELOC_16_PCREL;
3224 case 4: return BFD_RELOC_32_PCREL;
3225 case 8: return BFD_RELOC_64_PCREL;
3227 as_bad (_("cannot do %u byte pc-relative relocation"), size);
3234 case 4: return BFD_RELOC_X86_64_32S;
3239 case 1: return BFD_RELOC_8;
3240 case 2: return BFD_RELOC_16;
3241 case 4: return BFD_RELOC_32;
3242 case 8: return BFD_RELOC_64;
3244 as_bad (_("cannot do %s %u byte relocation"),
3245 sign > 0 ? "signed" : "unsigned", size);
3251 /* Here we decide which fixups can be adjusted to make them relative to
3252 the beginning of the section instead of the symbol. Basically we need
3253 to make sure that the dynamic relocations are done correctly, so in
3254 some cases we force the original symbol to be used. */
3257 tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED)
3259 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3263 /* Don't adjust pc-relative references to merge sections in 64-bit
3265 if (use_rela_relocations
3266 && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0
3270 /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations
3271 and changed later by validate_fix. */
3272 if (GOT_symbol && fixP->fx_subsy == GOT_symbol
3273 && fixP->fx_r_type == BFD_RELOC_32_PCREL)
3276 /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol
3277 for size relocations. */
3278 if (fixP->fx_r_type == BFD_RELOC_SIZE32
3279 || fixP->fx_r_type == BFD_RELOC_SIZE64
3280 || fixP->fx_r_type == BFD_RELOC_386_GOTOFF
3281 || fixP->fx_r_type == BFD_RELOC_386_PLT32
3282 || fixP->fx_r_type == BFD_RELOC_386_GOT32
3283 || fixP->fx_r_type == BFD_RELOC_386_GOT32X
3284 || fixP->fx_r_type == BFD_RELOC_386_TLS_GD
3285 || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM
3286 || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32
3287 || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32
3288 || fixP->fx_r_type == BFD_RELOC_386_TLS_IE
3289 || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE
3290 || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32
3291 || fixP->fx_r_type == BFD_RELOC_386_TLS_LE
3292 || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC
3293 || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL
3294 || fixP->fx_r_type == BFD_RELOC_X86_64_PLT32
3295 || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32
3296 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL
3297 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX
3298 || fixP->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX
3299 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD
3300 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD
3301 || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32
3302 || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64
3303 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF
3304 || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32
3305 || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64
3306 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64
3307 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC
3308 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL
3309 || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
3310 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
3317 intel_float_operand (const char *mnemonic)
3319 /* Note that the value returned is meaningful only for opcodes with (memory)
3320 operands, hence the code here is free to improperly handle opcodes that
3321 have no operands (for better performance and smaller code). */
3323 if (mnemonic[0] != 'f')
3324 return 0; /* non-math */
3326 switch (mnemonic[1])
3328 /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and
3329 the fs segment override prefix not currently handled because no
3330 call path can make opcodes without operands get here */
3332 return 2 /* integer op */;
3334 if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e'))
3335 return 3; /* fldcw/fldenv */
3338 if (mnemonic[2] != 'o' /* fnop */)
3339 return 3; /* non-waiting control op */
3342 if (mnemonic[2] == 's')
3343 return 3; /* frstor/frstpm */
3346 if (mnemonic[2] == 'a')
3347 return 3; /* fsave */
3348 if (mnemonic[2] == 't')
3350 switch (mnemonic[3])
3352 case 'c': /* fstcw */
3353 case 'd': /* fstdw */
3354 case 'e': /* fstenv */
3355 case 's': /* fsts[gw] */
3361 if (mnemonic[2] == 'r' || mnemonic[2] == 's')
3362 return 0; /* fxsave/fxrstor are not really math ops */
3369 /* Build the VEX prefix. */
3372 build_vex_prefix (const insn_template *t)
3374 unsigned int register_specifier;
3375 unsigned int implied_prefix;
3376 unsigned int vector_length;
3379 /* Check register specifier. */
3380 if (i.vex.register_specifier)
3382 register_specifier =
3383 ~register_number (i.vex.register_specifier) & 0xf;
3384 gas_assert ((i.vex.register_specifier->reg_flags & RegVRex) == 0);
3387 register_specifier = 0xf;
3389 /* Use 2-byte VEX prefix by swapping destination and source operand
3390 if there are more than 1 register operand. */
3391 if (i.reg_operands > 1
3392 && i.vec_encoding != vex_encoding_vex3
3393 && i.dir_encoding == dir_encoding_default
3394 && i.operands == i.reg_operands
3395 && operand_type_equal (&i.types[0], &i.types[i.operands - 1])
3396 && i.tm.opcode_modifier.vexopcode == VEX0F
3397 && (i.tm.opcode_modifier.load || i.tm.opcode_modifier.d)
3400 unsigned int xchg = i.operands - 1;
3401 union i386_op temp_op;
3402 i386_operand_type temp_type;
3404 temp_type = i.types[xchg];
3405 i.types[xchg] = i.types[0];
3406 i.types[0] = temp_type;
3407 temp_op = i.op[xchg];
3408 i.op[xchg] = i.op[0];
3411 gas_assert (i.rm.mode == 3);
3415 i.rm.regmem = i.rm.reg;
3418 if (i.tm.opcode_modifier.d)
3419 i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e
3420 ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD;
3421 else /* Use the next insn. */
3425 if (i.tm.opcode_modifier.vex == VEXScalar)
3426 vector_length = avxscalar;
3427 else if (i.tm.opcode_modifier.vex == VEX256)
3433 /* Determine vector length from the last multi-length vector
3436 for (op = t->operands; op--;)
3437 if (t->operand_types[op].bitfield.xmmword
3438 && t->operand_types[op].bitfield.ymmword
3439 && i.types[op].bitfield.ymmword)
3446 switch ((i.tm.base_opcode >> 8) & 0xff)
3451 case DATA_PREFIX_OPCODE:
3454 case REPE_PREFIX_OPCODE:
3457 case REPNE_PREFIX_OPCODE:
3464 /* Check the REX.W bit and VEXW. */
3465 if (i.tm.opcode_modifier.vexw == VEXWIG)
3466 w = (vexwig == vexw1 || (i.rex & REX_W)) ? 1 : 0;
3467 else if (i.tm.opcode_modifier.vexw)
3468 w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0;
3470 w = (flag_code == CODE_64BIT ? i.rex & REX_W : vexwig == vexw1) ? 1 : 0;
3472 /* Use 2-byte VEX prefix if possible. */
3474 && i.vec_encoding != vex_encoding_vex3
3475 && i.tm.opcode_modifier.vexopcode == VEX0F
3476 && (i.rex & (REX_W | REX_X | REX_B)) == 0)
3478 /* 2-byte VEX prefix. */
3482 i.vex.bytes[0] = 0xc5;
3484 /* Check the REX.R bit. */
3485 r = (i.rex & REX_R) ? 0 : 1;
3486 i.vex.bytes[1] = (r << 7
3487 | register_specifier << 3
3488 | vector_length << 2
3493 /* 3-byte VEX prefix. */
3498 switch (i.tm.opcode_modifier.vexopcode)
3502 i.vex.bytes[0] = 0xc4;
3506 i.vex.bytes[0] = 0xc4;
3510 i.vex.bytes[0] = 0xc4;
3514 i.vex.bytes[0] = 0x8f;
3518 i.vex.bytes[0] = 0x8f;
3522 i.vex.bytes[0] = 0x8f;
3528 /* The high 3 bits of the second VEX byte are 1's compliment
3529 of RXB bits from REX. */
3530 i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m;
3532 i.vex.bytes[2] = (w << 7
3533 | register_specifier << 3
3534 | vector_length << 2
3539 static INLINE bfd_boolean
3540 is_evex_encoding (const insn_template *t)
3542 return t->opcode_modifier.evex || t->opcode_modifier.disp8memshift
3543 || t->opcode_modifier.broadcast || t->opcode_modifier.masking
3544 || t->opcode_modifier.staticrounding || t->opcode_modifier.sae;
3547 static INLINE bfd_boolean
3548 is_any_vex_encoding (const insn_template *t)
3550 return t->opcode_modifier.vex || t->opcode_modifier.vexopcode
3551 || is_evex_encoding (t);
3554 /* Build the EVEX prefix. */
3557 build_evex_prefix (void)
3559 unsigned int register_specifier;
3560 unsigned int implied_prefix;
3562 rex_byte vrex_used = 0;
3564 /* Check register specifier. */
3565 if (i.vex.register_specifier)
3567 gas_assert ((i.vrex & REX_X) == 0);
3569 register_specifier = i.vex.register_specifier->reg_num;
3570 if ((i.vex.register_specifier->reg_flags & RegRex))
3571 register_specifier += 8;
3572 /* The upper 16 registers are encoded in the fourth byte of the
3574 if (!(i.vex.register_specifier->reg_flags & RegVRex))
3575 i.vex.bytes[3] = 0x8;
3576 register_specifier = ~register_specifier & 0xf;
3580 register_specifier = 0xf;
3582 /* Encode upper 16 vector index register in the fourth byte of
3584 if (!(i.vrex & REX_X))
3585 i.vex.bytes[3] = 0x8;
3590 switch ((i.tm.base_opcode >> 8) & 0xff)
3595 case DATA_PREFIX_OPCODE:
3598 case REPE_PREFIX_OPCODE:
3601 case REPNE_PREFIX_OPCODE:
3608 /* 4 byte EVEX prefix. */
3610 i.vex.bytes[0] = 0x62;
3613 switch (i.tm.opcode_modifier.vexopcode)
3629 /* The high 3 bits of the second EVEX byte are 1's compliment of RXB
3631 i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m;
3633 /* The fifth bit of the second EVEX byte is 1's compliment of the
3634 REX_R bit in VREX. */
3635 if (!(i.vrex & REX_R))
3636 i.vex.bytes[1] |= 0x10;
3640 if ((i.reg_operands + i.imm_operands) == i.operands)
3642 /* When all operands are registers, the REX_X bit in REX is not
3643 used. We reuse it to encode the upper 16 registers, which is
3644 indicated by the REX_B bit in VREX. The REX_X bit is encoded
3645 as 1's compliment. */
3646 if ((i.vrex & REX_B))
3649 i.vex.bytes[1] &= ~0x40;
3653 /* EVEX instructions shouldn't need the REX prefix. */
3654 i.vrex &= ~vrex_used;
3655 gas_assert (i.vrex == 0);
3657 /* Check the REX.W bit and VEXW. */
3658 if (i.tm.opcode_modifier.vexw == VEXWIG)
3659 w = (evexwig == evexw1 || (i.rex & REX_W)) ? 1 : 0;
3660 else if (i.tm.opcode_modifier.vexw)
3661 w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0;
3663 w = (flag_code == CODE_64BIT ? i.rex & REX_W : evexwig == evexw1) ? 1 : 0;
3665 /* Encode the U bit. */
3666 implied_prefix |= 0x4;
3668 /* The third byte of the EVEX prefix. */
3669 i.vex.bytes[2] = (w << 7 | register_specifier << 3 | implied_prefix);
3671 /* The fourth byte of the EVEX prefix. */
3672 /* The zeroing-masking bit. */
3673 if (i.mask && i.mask->zeroing)
3674 i.vex.bytes[3] |= 0x80;
3676 /* Don't always set the broadcast bit if there is no RC. */
3679 /* Encode the vector length. */
3680 unsigned int vec_length;
3682 if (!i.tm.opcode_modifier.evex
3683 || i.tm.opcode_modifier.evex == EVEXDYN)
3687 /* Determine vector length from the last multi-length vector
3690 for (op = i.operands; op--;)
3691 if (i.tm.operand_types[op].bitfield.xmmword
3692 + i.tm.operand_types[op].bitfield.ymmword
3693 + i.tm.operand_types[op].bitfield.zmmword > 1)
3695 if (i.types[op].bitfield.zmmword)
3697 i.tm.opcode_modifier.evex = EVEX512;
3700 else if (i.types[op].bitfield.ymmword)
3702 i.tm.opcode_modifier.evex = EVEX256;
3705 else if (i.types[op].bitfield.xmmword)
3707 i.tm.opcode_modifier.evex = EVEX128;
3710 else if (i.broadcast && (int) op == i.broadcast->operand)
3712 switch (i.broadcast->bytes)
3715 i.tm.opcode_modifier.evex = EVEX512;
3718 i.tm.opcode_modifier.evex = EVEX256;
3721 i.tm.opcode_modifier.evex = EVEX128;
3730 if (op >= MAX_OPERANDS)
3734 switch (i.tm.opcode_modifier.evex)
3736 case EVEXLIG: /* LL' is ignored */
3737 vec_length = evexlig << 5;
3740 vec_length = 0 << 5;
3743 vec_length = 1 << 5;
3746 vec_length = 2 << 5;
3752 i.vex.bytes[3] |= vec_length;
3753 /* Encode the broadcast bit. */
3755 i.vex.bytes[3] |= 0x10;
3759 if (i.rounding->type != saeonly)
3760 i.vex.bytes[3] |= 0x10 | (i.rounding->type << 5);
3762 i.vex.bytes[3] |= 0x10 | (evexrcig << 5);
3765 if (i.mask && i.mask->mask)
3766 i.vex.bytes[3] |= i.mask->mask->reg_num;
3770 process_immext (void)
3774 if ((i.tm.cpu_flags.bitfield.cpusse3 || i.tm.cpu_flags.bitfield.cpusvme)
3777 /* MONITOR/MWAIT as well as SVME instructions have fixed operands
3778 with an opcode suffix which is coded in the same place as an
3779 8-bit immediate field would be.
3780 Here we check those operands and remove them afterwards. */
3783 for (x = 0; x < i.operands; x++)
3784 if (register_number (i.op[x].regs) != x)
3785 as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
3786 register_prefix, i.op[x].regs->reg_name, x + 1,
3792 if (i.tm.cpu_flags.bitfield.cpumwaitx && i.operands > 0)
3794 /* MONITORX/MWAITX instructions have fixed operands with an opcode
3795 suffix which is coded in the same place as an 8-bit immediate
3797 Here we check those operands and remove them afterwards. */
3800 if (i.operands != 3)
3803 for (x = 0; x < 2; x++)
3804 if (register_number (i.op[x].regs) != x)
3805 goto bad_register_operand;
3807 /* Check for third operand for mwaitx/monitorx insn. */
3808 if (register_number (i.op[x].regs)
3809 != (x + (i.tm.extension_opcode == 0xfb)))
3811 bad_register_operand:
3812 as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
3813 register_prefix, i.op[x].regs->reg_name, x+1,
3820 /* These AMD 3DNow! and SSE2 instructions have an opcode suffix
3821 which is coded in the same place as an 8-bit immediate field
3822 would be. Here we fake an 8-bit immediate operand from the
3823 opcode suffix stored in tm.extension_opcode.
3825 AVX instructions also use this encoding, for some of
3826 3 argument instructions. */
3828 gas_assert (i.imm_operands <= 1
3830 || (is_any_vex_encoding (&i.tm)
3831 && i.operands <= 4)));
3833 exp = &im_expressions[i.imm_operands++];
3834 i.op[i.operands].imms = exp;
3835 i.types[i.operands] = imm8;
3837 exp->X_op = O_constant;
3838 exp->X_add_number = i.tm.extension_opcode;
3839 i.tm.extension_opcode = None;
3846 switch (i.tm.opcode_modifier.hleprefixok)
3851 as_bad (_("invalid instruction `%s' after `%s'"),
3852 i.tm.name, i.hle_prefix);
3855 if (i.prefix[LOCK_PREFIX])
3857 as_bad (_("missing `lock' with `%s'"), i.hle_prefix);
3861 case HLEPrefixRelease:
3862 if (i.prefix[HLE_PREFIX] != XRELEASE_PREFIX_OPCODE)
3864 as_bad (_("instruction `%s' after `xacquire' not allowed"),
3868 if (i.mem_operands == 0
3869 || !operand_type_check (i.types[i.operands - 1], anymem))
3871 as_bad (_("memory destination needed for instruction `%s'"
3872 " after `xrelease'"), i.tm.name);
3879 /* Try the shortest encoding by shortening operand size. */
3882 optimize_encoding (void)
3886 if (optimize_for_space
3887 && i.reg_operands == 1
3888 && i.imm_operands == 1
3889 && !i.types[1].bitfield.byte
3890 && i.op[0].imms->X_op == O_constant
3891 && fits_in_imm7 (i.op[0].imms->X_add_number)
3892 && ((i.tm.base_opcode == 0xa8
3893 && i.tm.extension_opcode == None)
3894 || (i.tm.base_opcode == 0xf6
3895 && i.tm.extension_opcode == 0x0)))
3898 test $imm7, %r64/%r32/%r16 -> test $imm7, %r8
3900 unsigned int base_regnum = i.op[1].regs->reg_num;
3901 if (flag_code == CODE_64BIT || base_regnum < 4)
3903 i.types[1].bitfield.byte = 1;
3904 /* Ignore the suffix. */
3906 if (base_regnum >= 4
3907 && !(i.op[1].regs->reg_flags & RegRex))
3909 /* Handle SP, BP, SI and DI registers. */
3910 if (i.types[1].bitfield.word)
3912 else if (i.types[1].bitfield.dword)
3920 else if (flag_code == CODE_64BIT
3921 && ((i.types[1].bitfield.qword
3922 && i.reg_operands == 1
3923 && i.imm_operands == 1
3924 && i.op[0].imms->X_op == O_constant
3925 && ((i.tm.base_opcode == 0xb0
3926 && i.tm.extension_opcode == None
3927 && fits_in_unsigned_long (i.op[0].imms->X_add_number))
3928 || (fits_in_imm31 (i.op[0].imms->X_add_number)
3929 && (((i.tm.base_opcode == 0x24
3930 || i.tm.base_opcode == 0xa8)
3931 && i.tm.extension_opcode == None)
3932 || (i.tm.base_opcode == 0x80
3933 && i.tm.extension_opcode == 0x4)
3934 || ((i.tm.base_opcode == 0xf6
3935 || i.tm.base_opcode == 0xc6)
3936 && i.tm.extension_opcode == 0x0)))))
3937 || (i.types[0].bitfield.qword
3938 && ((i.reg_operands == 2
3939 && i.op[0].regs == i.op[1].regs
3940 && ((i.tm.base_opcode == 0x30
3941 || i.tm.base_opcode == 0x28)
3942 && i.tm.extension_opcode == None))
3943 || (i.reg_operands == 1
3945 && i.tm.base_opcode == 0x30
3946 && i.tm.extension_opcode == None)))))
3949 andq $imm31, %r64 -> andl $imm31, %r32
3950 testq $imm31, %r64 -> testl $imm31, %r32
3951 xorq %r64, %r64 -> xorl %r32, %r32
3952 subq %r64, %r64 -> subl %r32, %r32
3953 movq $imm31, %r64 -> movl $imm31, %r32
3954 movq $imm32, %r64 -> movl $imm32, %r32
3956 i.tm.opcode_modifier.norex64 = 1;
3957 if (i.tm.base_opcode == 0xb0 || i.tm.base_opcode == 0xc6)
3960 movq $imm31, %r64 -> movl $imm31, %r32
3961 movq $imm32, %r64 -> movl $imm32, %r32
3963 i.tm.operand_types[0].bitfield.imm32 = 1;
3964 i.tm.operand_types[0].bitfield.imm32s = 0;
3965 i.tm.operand_types[0].bitfield.imm64 = 0;
3966 i.types[0].bitfield.imm32 = 1;
3967 i.types[0].bitfield.imm32s = 0;
3968 i.types[0].bitfield.imm64 = 0;
3969 i.types[1].bitfield.dword = 1;
3970 i.types[1].bitfield.qword = 0;
3971 if (i.tm.base_opcode == 0xc6)
3974 movq $imm31, %r64 -> movl $imm31, %r32
3976 i.tm.base_opcode = 0xb0;
3977 i.tm.extension_opcode = None;
3978 i.tm.opcode_modifier.shortform = 1;
3979 i.tm.opcode_modifier.modrm = 0;
3983 else if (i.reg_operands == 3
3984 && i.op[0].regs == i.op[1].regs
3985 && !i.types[2].bitfield.xmmword
3986 && (i.tm.opcode_modifier.vex
3987 || ((!i.mask || i.mask->zeroing)
3989 && is_evex_encoding (&i.tm)
3990 && (i.vec_encoding != vex_encoding_evex
3991 || cpu_arch_isa_flags.bitfield.cpuavx512vl
3992 || i.tm.cpu_flags.bitfield.cpuavx512vl
3993 || (i.tm.operand_types[2].bitfield.zmmword
3994 && i.types[2].bitfield.ymmword))))
3995 && ((i.tm.base_opcode == 0x55
3996 || i.tm.base_opcode == 0x6655
3997 || i.tm.base_opcode == 0x66df
3998 || i.tm.base_opcode == 0x57
3999 || i.tm.base_opcode == 0x6657
4000 || i.tm.base_opcode == 0x66ef
4001 || i.tm.base_opcode == 0x66f8
4002 || i.tm.base_opcode == 0x66f9
4003 || i.tm.base_opcode == 0x66fa
4004 || i.tm.base_opcode == 0x66fb
4005 || i.tm.base_opcode == 0x42
4006 || i.tm.base_opcode == 0x6642
4007 || i.tm.base_opcode == 0x47
4008 || i.tm.base_opcode == 0x6647)
4009 && i.tm.extension_opcode == None))
4012 VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd,
4014 EVEX VOP %zmmM, %zmmM, %zmmN
4015 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4016 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4017 EVEX VOP %ymmM, %ymmM, %ymmN
4018 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4019 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4020 VEX VOP %ymmM, %ymmM, %ymmN
4021 -> VEX VOP %xmmM, %xmmM, %xmmN
4022 VOP, one of vpandn and vpxor:
4023 VEX VOP %ymmM, %ymmM, %ymmN
4024 -> VEX VOP %xmmM, %xmmM, %xmmN
4025 VOP, one of vpandnd and vpandnq:
4026 EVEX VOP %zmmM, %zmmM, %zmmN
4027 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4028 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4029 EVEX VOP %ymmM, %ymmM, %ymmN
4030 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4031 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4032 VOP, one of vpxord and vpxorq:
4033 EVEX VOP %zmmM, %zmmM, %zmmN
4034 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4035 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4036 EVEX VOP %ymmM, %ymmM, %ymmN
4037 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4038 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4039 VOP, one of kxord and kxorq:
4040 VEX VOP %kM, %kM, %kN
4041 -> VEX kxorw %kM, %kM, %kN
4042 VOP, one of kandnd and kandnq:
4043 VEX VOP %kM, %kM, %kN
4044 -> VEX kandnw %kM, %kM, %kN
4046 if (is_evex_encoding (&i.tm))
4048 if (i.vec_encoding != vex_encoding_evex)
4050 i.tm.opcode_modifier.vex = VEX128;
4051 i.tm.opcode_modifier.vexw = VEXW0;
4052 i.tm.opcode_modifier.evex = 0;
4054 else if (optimize > 1)
4055 i.tm.opcode_modifier.evex = EVEX128;
4059 else if (i.tm.operand_types[0].bitfield.regmask)
4061 i.tm.base_opcode &= 0xff;
4062 i.tm.opcode_modifier.vexw = VEXW0;
4065 i.tm.opcode_modifier.vex = VEX128;
4067 if (i.tm.opcode_modifier.vex)
4068 for (j = 0; j < 3; j++)
4070 i.types[j].bitfield.xmmword = 1;
4071 i.types[j].bitfield.ymmword = 0;
4074 else if (i.vec_encoding != vex_encoding_evex
4075 && !i.types[0].bitfield.zmmword
4076 && !i.types[1].bitfield.zmmword
4078 && is_evex_encoding (&i.tm)
4079 && ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x666f
4080 || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf36f
4081 || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f)
4082 && i.tm.extension_opcode == None)
4085 VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16,
4086 vmovdqu32 and vmovdqu64:
4087 EVEX VOP %xmmM, %xmmN
4088 -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16)
4089 EVEX VOP %ymmM, %ymmN
4090 -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16)
4092 -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16)
4094 -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16)
4096 -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16)
4098 -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16)
4100 for (j = 0; j < 2; j++)
4101 if (operand_type_check (i.types[j], disp)
4102 && i.op[j].disps->X_op == O_constant)
4104 /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix
4105 has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4
4106 bytes, we choose EVEX Disp8 over VEX Disp32. */
4107 int evex_disp8, vex_disp8;
4108 unsigned int memshift = i.memshift;
4109 offsetT n = i.op[j].disps->X_add_number;
4111 evex_disp8 = fits_in_disp8 (n);
4113 vex_disp8 = fits_in_disp8 (n);
4114 if (evex_disp8 != vex_disp8)
4116 i.memshift = memshift;
4120 i.types[j].bitfield.disp8 = vex_disp8;
4123 if ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f)
4124 i.tm.base_opcode ^= 0xf36f ^ 0xf26f;
4125 i.tm.opcode_modifier.vex
4126 = i.types[0].bitfield.ymmword ? VEX256 : VEX128;
4127 i.tm.opcode_modifier.vexw = VEXW0;
4128 i.tm.opcode_modifier.evex = 0;
4129 i.tm.opcode_modifier.masking = 0;
4130 i.tm.opcode_modifier.disp8memshift = 0;
4132 for (j = 0; j < 2; j++)
4133 if (operand_type_check (i.types[j], disp)
4134 && i.op[j].disps->X_op == O_constant)
4136 i.types[j].bitfield.disp8
4137 = fits_in_disp8 (i.op[j].disps->X_add_number);
4143 /* This is the guts of the machine-dependent assembler. LINE points to a
4144 machine dependent instruction. This function is supposed to emit
4145 the frags/bytes it assembles to. */
4148 md_assemble (char *line)
4151 char mnemonic[MAX_MNEM_SIZE], mnem_suffix;
4152 const insn_template *t;
4154 /* Initialize globals. */
4155 memset (&i, '\0', sizeof (i));
4156 for (j = 0; j < MAX_OPERANDS; j++)
4157 i.reloc[j] = NO_RELOC;
4158 memset (disp_expressions, '\0', sizeof (disp_expressions));
4159 memset (im_expressions, '\0', sizeof (im_expressions));
4160 save_stack_p = save_stack;
4162 /* First parse an instruction mnemonic & call i386_operand for the operands.
4163 We assume that the scrubber has arranged it so that line[0] is the valid
4164 start of a (possibly prefixed) mnemonic. */
4166 line = parse_insn (line, mnemonic);
4169 mnem_suffix = i.suffix;
4171 line = parse_operands (line, mnemonic);
4173 xfree (i.memop1_string);
4174 i.memop1_string = NULL;
4178 /* Now we've parsed the mnemonic into a set of templates, and have the
4179 operands at hand. */
4181 /* All intel opcodes have reversed operands except for "bound" and
4182 "enter". We also don't reverse intersegment "jmp" and "call"
4183 instructions with 2 immediate operands so that the immediate segment
4184 precedes the offset, as it does when in AT&T mode. */
4187 && (strcmp (mnemonic, "bound") != 0)
4188 && (strcmp (mnemonic, "invlpga") != 0)
4189 && !(operand_type_check (i.types[0], imm)
4190 && operand_type_check (i.types[1], imm)))
4193 /* The order of the immediates should be reversed
4194 for 2 immediates extrq and insertq instructions */
4195 if (i.imm_operands == 2
4196 && (strcmp (mnemonic, "extrq") == 0
4197 || strcmp (mnemonic, "insertq") == 0))
4198 swap_2_operands (0, 1);
4203 /* Don't optimize displacement for movabs since it only takes 64bit
4206 && i.disp_encoding != disp_encoding_32bit
4207 && (flag_code != CODE_64BIT
4208 || strcmp (mnemonic, "movabs") != 0))
4211 /* Next, we find a template that matches the given insn,
4212 making sure the overlap of the given operands types is consistent
4213 with the template operand types. */
4215 if (!(t = match_template (mnem_suffix)))
4218 if (sse_check != check_none
4219 && !i.tm.opcode_modifier.noavx
4220 && !i.tm.cpu_flags.bitfield.cpuavx
4221 && (i.tm.cpu_flags.bitfield.cpusse
4222 || i.tm.cpu_flags.bitfield.cpusse2
4223 || i.tm.cpu_flags.bitfield.cpusse3
4224 || i.tm.cpu_flags.bitfield.cpussse3
4225 || i.tm.cpu_flags.bitfield.cpusse4_1
4226 || i.tm.cpu_flags.bitfield.cpusse4_2
4227 || i.tm.cpu_flags.bitfield.cpupclmul
4228 || i.tm.cpu_flags.bitfield.cpuaes
4229 || i.tm.cpu_flags.bitfield.cpugfni))
4231 (sse_check == check_warning
4233 : as_bad) (_("SSE instruction `%s' is used"), i.tm.name);
4236 /* Zap movzx and movsx suffix. The suffix has been set from
4237 "word ptr" or "byte ptr" on the source operand in Intel syntax
4238 or extracted from mnemonic in AT&T syntax. But we'll use
4239 the destination register to choose the suffix for encoding. */
4240 if ((i.tm.base_opcode & ~9) == 0x0fb6)
4242 /* In Intel syntax, there must be a suffix. In AT&T syntax, if
4243 there is no suffix, the default will be byte extension. */
4244 if (i.reg_operands != 2
4247 as_bad (_("ambiguous operand size for `%s'"), i.tm.name);
4252 if (i.tm.opcode_modifier.fwait)
4253 if (!add_prefix (FWAIT_OPCODE))
4256 /* Check if REP prefix is OK. */
4257 if (i.rep_prefix && !i.tm.opcode_modifier.repprefixok)
4259 as_bad (_("invalid instruction `%s' after `%s'"),
4260 i.tm.name, i.rep_prefix);
4264 /* Check for lock without a lockable instruction. Destination operand
4265 must be memory unless it is xchg (0x86). */
4266 if (i.prefix[LOCK_PREFIX]
4267 && (!i.tm.opcode_modifier.islockable
4268 || i.mem_operands == 0
4269 || (i.tm.base_opcode != 0x86
4270 && !operand_type_check (i.types[i.operands - 1], anymem))))
4272 as_bad (_("expecting lockable instruction after `lock'"));
4276 /* Check for data size prefix on VEX/XOP/EVEX encoded insns. */
4277 if (i.prefix[DATA_PREFIX] && is_any_vex_encoding (&i.tm))
4279 as_bad (_("data size prefix invalid with `%s'"), i.tm.name);
4283 /* Check if HLE prefix is OK. */
4284 if (i.hle_prefix && !check_hle ())
4287 /* Check BND prefix. */
4288 if (i.bnd_prefix && !i.tm.opcode_modifier.bndprefixok)
4289 as_bad (_("expecting valid branch instruction after `bnd'"));
4291 /* Check NOTRACK prefix. */
4292 if (i.notrack_prefix && !i.tm.opcode_modifier.notrackprefixok)
4293 as_bad (_("expecting indirect branch instruction after `notrack'"));
4295 if (i.tm.cpu_flags.bitfield.cpumpx)
4297 if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX])
4298 as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions."));
4299 else if (flag_code != CODE_16BIT
4300 ? i.prefix[ADDR_PREFIX]
4301 : i.mem_operands && !i.prefix[ADDR_PREFIX])
4302 as_bad (_("16-bit address isn't allowed in MPX instructions"));
4305 /* Insert BND prefix. */
4306 if (add_bnd_prefix && i.tm.opcode_modifier.bndprefixok)
4308 if (!i.prefix[BND_PREFIX])
4309 add_prefix (BND_PREFIX_OPCODE);
4310 else if (i.prefix[BND_PREFIX] != BND_PREFIX_OPCODE)
4312 as_warn (_("replacing `rep'/`repe' prefix by `bnd'"));
4313 i.prefix[BND_PREFIX] = BND_PREFIX_OPCODE;
4317 /* Check string instruction segment overrides. */
4318 if (i.tm.opcode_modifier.isstring && i.mem_operands != 0)
4320 if (!check_string ())
4322 i.disp_operands = 0;
4325 if (optimize && !i.no_optimize && i.tm.opcode_modifier.optimize)
4326 optimize_encoding ();
4328 if (!process_suffix ())
4331 /* Update operand types. */
4332 for (j = 0; j < i.operands; j++)
4333 i.types[j] = operand_type_and (i.types[j], i.tm.operand_types[j]);
4335 /* Make still unresolved immediate matches conform to size of immediate
4336 given in i.suffix. */
4337 if (!finalize_imm ())
4340 if (i.types[0].bitfield.imm1)
4341 i.imm_operands = 0; /* kludge for shift insns. */
4343 /* We only need to check those implicit registers for instructions
4344 with 3 operands or less. */
4345 if (i.operands <= 3)
4346 for (j = 0; j < i.operands; j++)
4347 if (i.types[j].bitfield.inoutportreg
4348 || i.types[j].bitfield.shiftcount
4349 || (i.types[j].bitfield.acc && !i.types[j].bitfield.xmmword))
4352 /* ImmExt should be processed after SSE2AVX. */
4353 if (!i.tm.opcode_modifier.sse2avx
4354 && i.tm.opcode_modifier.immext)
4357 /* For insns with operands there are more diddles to do to the opcode. */
4360 if (!process_operands ())
4363 else if (!quiet_warnings && i.tm.opcode_modifier.ugh)
4365 /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */
4366 as_warn (_("translating to `%sp'"), i.tm.name);
4369 if (is_any_vex_encoding (&i.tm))
4371 if (flag_code == CODE_16BIT)
4373 as_bad (_("instruction `%s' isn't supported in 16-bit mode."),
4378 if (i.tm.opcode_modifier.vex)
4379 build_vex_prefix (t);
4381 build_evex_prefix ();
4384 /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4
4385 instructions may define INT_OPCODE as well, so avoid this corner
4386 case for those instructions that use MODRM. */
4387 if (i.tm.base_opcode == INT_OPCODE
4388 && !i.tm.opcode_modifier.modrm
4389 && i.op[0].imms->X_add_number == 3)
4391 i.tm.base_opcode = INT3_OPCODE;
4395 if ((i.tm.opcode_modifier.jump
4396 || i.tm.opcode_modifier.jumpbyte
4397 || i.tm.opcode_modifier.jumpdword)
4398 && i.op[0].disps->X_op == O_constant)
4400 /* Convert "jmp constant" (and "call constant") to a jump (call) to
4401 the absolute address given by the constant. Since ix86 jumps and
4402 calls are pc relative, we need to generate a reloc. */
4403 i.op[0].disps->X_add_symbol = &abs_symbol;
4404 i.op[0].disps->X_op = O_symbol;
4407 if (i.tm.opcode_modifier.rex64)
4410 /* For 8 bit registers we need an empty rex prefix. Also if the
4411 instruction already has a prefix, we need to convert old
4412 registers to new ones. */
4414 if ((i.types[0].bitfield.reg && i.types[0].bitfield.byte
4415 && (i.op[0].regs->reg_flags & RegRex64) != 0)
4416 || (i.types[1].bitfield.reg && i.types[1].bitfield.byte
4417 && (i.op[1].regs->reg_flags & RegRex64) != 0)
4418 || (((i.types[0].bitfield.reg && i.types[0].bitfield.byte)
4419 || (i.types[1].bitfield.reg && i.types[1].bitfield.byte))
4424 i.rex |= REX_OPCODE;
4425 for (x = 0; x < 2; x++)
4427 /* Look for 8 bit operand that uses old registers. */
4428 if (i.types[x].bitfield.reg && i.types[x].bitfield.byte
4429 && (i.op[x].regs->reg_flags & RegRex64) == 0)
4431 /* In case it is "hi" register, give up. */
4432 if (i.op[x].regs->reg_num > 3)
4433 as_bad (_("can't encode register '%s%s' in an "
4434 "instruction requiring REX prefix."),
4435 register_prefix, i.op[x].regs->reg_name);
4437 /* Otherwise it is equivalent to the extended register.
4438 Since the encoding doesn't change this is merely
4439 cosmetic cleanup for debug output. */
4441 i.op[x].regs = i.op[x].regs + 8;
4446 if (i.rex == 0 && i.rex_encoding)
4448 /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand
4449 that uses legacy register. If it is "hi" register, don't add
4450 the REX_OPCODE byte. */
4452 for (x = 0; x < 2; x++)
4453 if (i.types[x].bitfield.reg
4454 && i.types[x].bitfield.byte
4455 && (i.op[x].regs->reg_flags & RegRex64) == 0
4456 && i.op[x].regs->reg_num > 3)
4458 i.rex_encoding = FALSE;
4467 add_prefix (REX_OPCODE | i.rex);
4469 /* We are ready to output the insn. */
4474 parse_insn (char *line, char *mnemonic)
4477 char *token_start = l;
4480 const insn_template *t;
4486 while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0)
4491 if (mnem_p >= mnemonic + MAX_MNEM_SIZE)
4493 as_bad (_("no such instruction: `%s'"), token_start);
4498 if (!is_space_char (*l)
4499 && *l != END_OF_INSN
4501 || (*l != PREFIX_SEPARATOR
4504 as_bad (_("invalid character %s in mnemonic"),
4505 output_invalid (*l));
4508 if (token_start == l)
4510 if (!intel_syntax && *l == PREFIX_SEPARATOR)
4511 as_bad (_("expecting prefix; got nothing"));
4513 as_bad (_("expecting mnemonic; got nothing"));
4517 /* Look up instruction (or prefix) via hash table. */
4518 current_templates = (const templates *) hash_find (op_hash, mnemonic);
4520 if (*l != END_OF_INSN
4521 && (!is_space_char (*l) || l[1] != END_OF_INSN)
4522 && current_templates
4523 && current_templates->start->opcode_modifier.isprefix)
4525 if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags))
4527 as_bad ((flag_code != CODE_64BIT
4528 ? _("`%s' is only supported in 64-bit mode")
4529 : _("`%s' is not supported in 64-bit mode")),
4530 current_templates->start->name);
4533 /* If we are in 16-bit mode, do not allow addr16 or data16.
4534 Similarly, in 32-bit mode, do not allow addr32 or data32. */
4535 if ((current_templates->start->opcode_modifier.size == SIZE16
4536 || current_templates->start->opcode_modifier.size == SIZE32)
4537 && flag_code != CODE_64BIT
4538 && ((current_templates->start->opcode_modifier.size == SIZE32)
4539 ^ (flag_code == CODE_16BIT)))
4541 as_bad (_("redundant %s prefix"),
4542 current_templates->start->name);
4545 if (current_templates->start->opcode_length == 0)
4547 /* Handle pseudo prefixes. */
4548 switch (current_templates->start->base_opcode)
4552 i.disp_encoding = disp_encoding_8bit;
4556 i.disp_encoding = disp_encoding_32bit;
4560 i.dir_encoding = dir_encoding_load;
4564 i.dir_encoding = dir_encoding_store;
4568 i.vec_encoding = vex_encoding_vex2;
4572 i.vec_encoding = vex_encoding_vex3;
4576 i.vec_encoding = vex_encoding_evex;
4580 i.rex_encoding = TRUE;
4584 i.no_optimize = TRUE;
4592 /* Add prefix, checking for repeated prefixes. */
4593 switch (add_prefix (current_templates->start->base_opcode))
4598 if (current_templates->start->cpu_flags.bitfield.cpuibt)
4599 i.notrack_prefix = current_templates->start->name;
4602 if (current_templates->start->cpu_flags.bitfield.cpuhle)
4603 i.hle_prefix = current_templates->start->name;
4604 else if (current_templates->start->cpu_flags.bitfield.cpumpx)
4605 i.bnd_prefix = current_templates->start->name;
4607 i.rep_prefix = current_templates->start->name;
4613 /* Skip past PREFIX_SEPARATOR and reset token_start. */
4620 if (!current_templates)
4622 /* Deprecated functionality (new code should use pseudo-prefixes instead):
4623 Check if we should swap operand or force 32bit displacement in
4625 if (mnem_p - 2 == dot_p && dot_p[1] == 's')
4626 i.dir_encoding = dir_encoding_swap;
4627 else if (mnem_p - 3 == dot_p
4630 i.disp_encoding = disp_encoding_8bit;
4631 else if (mnem_p - 4 == dot_p
4635 i.disp_encoding = disp_encoding_32bit;
4640 current_templates = (const templates *) hash_find (op_hash, mnemonic);
4643 if (!current_templates)
4646 if (mnem_p > mnemonic)
4648 /* See if we can get a match by trimming off a suffix. */
4651 case WORD_MNEM_SUFFIX:
4652 if (intel_syntax && (intel_float_operand (mnemonic) & 2))
4653 i.suffix = SHORT_MNEM_SUFFIX;
4656 case BYTE_MNEM_SUFFIX:
4657 case QWORD_MNEM_SUFFIX:
4658 i.suffix = mnem_p[-1];
4660 current_templates = (const templates *) hash_find (op_hash,
4663 case SHORT_MNEM_SUFFIX:
4664 case LONG_MNEM_SUFFIX:
4667 i.suffix = mnem_p[-1];
4669 current_templates = (const templates *) hash_find (op_hash,
4678 if (intel_float_operand (mnemonic) == 1)
4679 i.suffix = SHORT_MNEM_SUFFIX;
4681 i.suffix = LONG_MNEM_SUFFIX;
4683 current_templates = (const templates *) hash_find (op_hash,
4690 if (!current_templates)
4692 as_bad (_("no such instruction: `%s'"), token_start);
4697 if (current_templates->start->opcode_modifier.jump
4698 || current_templates->start->opcode_modifier.jumpbyte)
4700 /* Check for a branch hint. We allow ",pt" and ",pn" for
4701 predict taken and predict not taken respectively.
4702 I'm not sure that branch hints actually do anything on loop
4703 and jcxz insns (JumpByte) for current Pentium4 chips. They
4704 may work in the future and it doesn't hurt to accept them
4706 if (l[0] == ',' && l[1] == 'p')
4710 if (!add_prefix (DS_PREFIX_OPCODE))
4714 else if (l[2] == 'n')
4716 if (!add_prefix (CS_PREFIX_OPCODE))
4722 /* Any other comma loses. */
4725 as_bad (_("invalid character %s in mnemonic"),
4726 output_invalid (*l));
4730 /* Check if instruction is supported on specified architecture. */
4732 for (t = current_templates->start; t < current_templates->end; ++t)
4734 supported |= cpu_flags_match (t);
4735 if (supported == CPU_FLAGS_PERFECT_MATCH)
4737 if (!cpu_arch_flags.bitfield.cpui386 && (flag_code != CODE_16BIT))
4738 as_warn (_("use .code16 to ensure correct addressing mode"));
4744 if (!(supported & CPU_FLAGS_64BIT_MATCH))
4745 as_bad (flag_code == CODE_64BIT
4746 ? _("`%s' is not supported in 64-bit mode")
4747 : _("`%s' is only supported in 64-bit mode"),
4748 current_templates->start->name);
4750 as_bad (_("`%s' is not supported on `%s%s'"),
4751 current_templates->start->name,
4752 cpu_arch_name ? cpu_arch_name : default_arch,
4753 cpu_sub_arch_name ? cpu_sub_arch_name : "");
4759 parse_operands (char *l, const char *mnemonic)
4763 /* 1 if operand is pending after ','. */
4764 unsigned int expecting_operand = 0;
4766 /* Non-zero if operand parens not balanced. */
4767 unsigned int paren_not_balanced;
4769 while (*l != END_OF_INSN)
4771 /* Skip optional white space before operand. */
4772 if (is_space_char (*l))
4774 if (!is_operand_char (*l) && *l != END_OF_INSN && *l != '"')
4776 as_bad (_("invalid character %s before operand %d"),
4777 output_invalid (*l),
4781 token_start = l; /* After white space. */
4782 paren_not_balanced = 0;
4783 while (paren_not_balanced || *l != ',')
4785 if (*l == END_OF_INSN)
4787 if (paren_not_balanced)
4790 as_bad (_("unbalanced parenthesis in operand %d."),
4793 as_bad (_("unbalanced brackets in operand %d."),
4798 break; /* we are done */
4800 else if (!is_operand_char (*l) && !is_space_char (*l) && *l != '"')
4802 as_bad (_("invalid character %s in operand %d"),
4803 output_invalid (*l),
4810 ++paren_not_balanced;
4812 --paren_not_balanced;
4817 ++paren_not_balanced;
4819 --paren_not_balanced;
4823 if (l != token_start)
4824 { /* Yes, we've read in another operand. */
4825 unsigned int operand_ok;
4826 this_operand = i.operands++;
4827 if (i.operands > MAX_OPERANDS)
4829 as_bad (_("spurious operands; (%d operands/instruction max)"),
4833 i.types[this_operand].bitfield.unspecified = 1;
4834 /* Now parse operand adding info to 'i' as we go along. */
4835 END_STRING_AND_SAVE (l);
4837 if (i.mem_operands > 1)
4839 as_bad (_("too many memory references for `%s'"),
4846 i386_intel_operand (token_start,
4847 intel_float_operand (mnemonic));
4849 operand_ok = i386_att_operand (token_start);
4851 RESTORE_END_STRING (l);
4857 if (expecting_operand)
4859 expecting_operand_after_comma:
4860 as_bad (_("expecting operand after ','; got nothing"));
4865 as_bad (_("expecting operand before ','; got nothing"));
4870 /* Now *l must be either ',' or END_OF_INSN. */
4873 if (*++l == END_OF_INSN)
4875 /* Just skip it, if it's \n complain. */
4876 goto expecting_operand_after_comma;
4878 expecting_operand = 1;
4885 swap_2_operands (int xchg1, int xchg2)
4887 union i386_op temp_op;
4888 i386_operand_type temp_type;
4889 unsigned int temp_flags;
4890 enum bfd_reloc_code_real temp_reloc;
4892 temp_type = i.types[xchg2];
4893 i.types[xchg2] = i.types[xchg1];
4894 i.types[xchg1] = temp_type;
4896 temp_flags = i.flags[xchg2];
4897 i.flags[xchg2] = i.flags[xchg1];
4898 i.flags[xchg1] = temp_flags;
4900 temp_op = i.op[xchg2];
4901 i.op[xchg2] = i.op[xchg1];
4902 i.op[xchg1] = temp_op;
4904 temp_reloc = i.reloc[xchg2];
4905 i.reloc[xchg2] = i.reloc[xchg1];
4906 i.reloc[xchg1] = temp_reloc;
4910 if (i.mask->operand == xchg1)
4911 i.mask->operand = xchg2;
4912 else if (i.mask->operand == xchg2)
4913 i.mask->operand = xchg1;
4917 if (i.broadcast->operand == xchg1)
4918 i.broadcast->operand = xchg2;
4919 else if (i.broadcast->operand == xchg2)
4920 i.broadcast->operand = xchg1;
4924 if (i.rounding->operand == xchg1)
4925 i.rounding->operand = xchg2;
4926 else if (i.rounding->operand == xchg2)
4927 i.rounding->operand = xchg1;
4932 swap_operands (void)
4938 swap_2_operands (1, i.operands - 2);
4942 swap_2_operands (0, i.operands - 1);
4948 if (i.mem_operands == 2)
4950 const seg_entry *temp_seg;
4951 temp_seg = i.seg[0];
4952 i.seg[0] = i.seg[1];
4953 i.seg[1] = temp_seg;
4957 /* Try to ensure constant immediates are represented in the smallest
4962 char guess_suffix = 0;
4966 guess_suffix = i.suffix;
4967 else if (i.reg_operands)
4969 /* Figure out a suffix from the last register operand specified.
4970 We can't do this properly yet, ie. excluding InOutPortReg,
4971 but the following works for instructions with immediates.
4972 In any case, we can't set i.suffix yet. */
4973 for (op = i.operands; --op >= 0;)
4974 if (i.types[op].bitfield.reg && i.types[op].bitfield.byte)
4976 guess_suffix = BYTE_MNEM_SUFFIX;
4979 else if (i.types[op].bitfield.reg && i.types[op].bitfield.word)
4981 guess_suffix = WORD_MNEM_SUFFIX;
4984 else if (i.types[op].bitfield.reg && i.types[op].bitfield.dword)
4986 guess_suffix = LONG_MNEM_SUFFIX;
4989 else if (i.types[op].bitfield.reg && i.types[op].bitfield.qword)
4991 guess_suffix = QWORD_MNEM_SUFFIX;
4995 else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0))
4996 guess_suffix = WORD_MNEM_SUFFIX;
4998 for (op = i.operands; --op >= 0;)
4999 if (operand_type_check (i.types[op], imm))
5001 switch (i.op[op].imms->X_op)
5004 /* If a suffix is given, this operand may be shortened. */
5005 switch (guess_suffix)
5007 case LONG_MNEM_SUFFIX:
5008 i.types[op].bitfield.imm32 = 1;
5009 i.types[op].bitfield.imm64 = 1;
5011 case WORD_MNEM_SUFFIX:
5012 i.types[op].bitfield.imm16 = 1;
5013 i.types[op].bitfield.imm32 = 1;
5014 i.types[op].bitfield.imm32s = 1;
5015 i.types[op].bitfield.imm64 = 1;
5017 case BYTE_MNEM_SUFFIX:
5018 i.types[op].bitfield.imm8 = 1;
5019 i.types[op].bitfield.imm8s = 1;
5020 i.types[op].bitfield.imm16 = 1;
5021 i.types[op].bitfield.imm32 = 1;
5022 i.types[op].bitfield.imm32s = 1;
5023 i.types[op].bitfield.imm64 = 1;
5027 /* If this operand is at most 16 bits, convert it
5028 to a signed 16 bit number before trying to see
5029 whether it will fit in an even smaller size.
5030 This allows a 16-bit operand such as $0xffe0 to
5031 be recognised as within Imm8S range. */
5032 if ((i.types[op].bitfield.imm16)
5033 && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0)
5035 i.op[op].imms->X_add_number =
5036 (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000);
5039 /* Store 32-bit immediate in 64-bit for 64-bit BFD. */
5040 if ((i.types[op].bitfield.imm32)
5041 && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1))
5044 i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number
5045 ^ ((offsetT) 1 << 31))
5046 - ((offsetT) 1 << 31));
5050 = operand_type_or (i.types[op],
5051 smallest_imm_type (i.op[op].imms->X_add_number));
5053 /* We must avoid matching of Imm32 templates when 64bit
5054 only immediate is available. */
5055 if (guess_suffix == QWORD_MNEM_SUFFIX)
5056 i.types[op].bitfield.imm32 = 0;
5063 /* Symbols and expressions. */
5065 /* Convert symbolic operand to proper sizes for matching, but don't
5066 prevent matching a set of insns that only supports sizes other
5067 than those matching the insn suffix. */
5069 i386_operand_type mask, allowed;
5070 const insn_template *t;
5072 operand_type_set (&mask, 0);
5073 operand_type_set (&allowed, 0);
5075 for (t = current_templates->start;
5076 t < current_templates->end;
5078 allowed = operand_type_or (allowed,
5079 t->operand_types[op]);
5080 switch (guess_suffix)
5082 case QWORD_MNEM_SUFFIX:
5083 mask.bitfield.imm64 = 1;
5084 mask.bitfield.imm32s = 1;
5086 case LONG_MNEM_SUFFIX:
5087 mask.bitfield.imm32 = 1;
5089 case WORD_MNEM_SUFFIX:
5090 mask.bitfield.imm16 = 1;
5092 case BYTE_MNEM_SUFFIX:
5093 mask.bitfield.imm8 = 1;
5098 allowed = operand_type_and (mask, allowed);
5099 if (!operand_type_all_zero (&allowed))
5100 i.types[op] = operand_type_and (i.types[op], mask);
5107 /* Try to use the smallest displacement type too. */
5109 optimize_disp (void)
5113 for (op = i.operands; --op >= 0;)
5114 if (operand_type_check (i.types[op], disp))
5116 if (i.op[op].disps->X_op == O_constant)
5118 offsetT op_disp = i.op[op].disps->X_add_number;
5120 if (i.types[op].bitfield.disp16
5121 && (op_disp & ~(offsetT) 0xffff) == 0)
5123 /* If this operand is at most 16 bits, convert
5124 to a signed 16 bit number and don't use 64bit
5126 op_disp = (((op_disp & 0xffff) ^ 0x8000) - 0x8000);
5127 i.types[op].bitfield.disp64 = 0;
5130 /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */
5131 if (i.types[op].bitfield.disp32
5132 && (op_disp & ~(((offsetT) 2 << 31) - 1)) == 0)
5134 /* If this operand is at most 32 bits, convert
5135 to a signed 32 bit number and don't use 64bit
5137 op_disp &= (((offsetT) 2 << 31) - 1);
5138 op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31);
5139 i.types[op].bitfield.disp64 = 0;
5142 if (!op_disp && i.types[op].bitfield.baseindex)
5144 i.types[op].bitfield.disp8 = 0;
5145 i.types[op].bitfield.disp16 = 0;
5146 i.types[op].bitfield.disp32 = 0;
5147 i.types[op].bitfield.disp32s = 0;
5148 i.types[op].bitfield.disp64 = 0;
5152 else if (flag_code == CODE_64BIT)
5154 if (fits_in_signed_long (op_disp))
5156 i.types[op].bitfield.disp64 = 0;
5157 i.types[op].bitfield.disp32s = 1;
5159 if (i.prefix[ADDR_PREFIX]
5160 && fits_in_unsigned_long (op_disp))
5161 i.types[op].bitfield.disp32 = 1;
5163 if ((i.types[op].bitfield.disp32
5164 || i.types[op].bitfield.disp32s
5165 || i.types[op].bitfield.disp16)
5166 && fits_in_disp8 (op_disp))
5167 i.types[op].bitfield.disp8 = 1;
5169 else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
5170 || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)
5172 fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0,
5173 i.op[op].disps, 0, i.reloc[op]);
5174 i.types[op].bitfield.disp8 = 0;
5175 i.types[op].bitfield.disp16 = 0;
5176 i.types[op].bitfield.disp32 = 0;
5177 i.types[op].bitfield.disp32s = 0;
5178 i.types[op].bitfield.disp64 = 0;
5181 /* We only support 64bit displacement on constants. */
5182 i.types[op].bitfield.disp64 = 0;
5186 /* Return 1 if there is a match in broadcast bytes between operand
5187 GIVEN and instruction template T. */
5190 match_broadcast_size (const insn_template *t, unsigned int given)
5192 return ((t->opcode_modifier.broadcast == BYTE_BROADCAST
5193 && i.types[given].bitfield.byte)
5194 || (t->opcode_modifier.broadcast == WORD_BROADCAST
5195 && i.types[given].bitfield.word)
5196 || (t->opcode_modifier.broadcast == DWORD_BROADCAST
5197 && i.types[given].bitfield.dword)
5198 || (t->opcode_modifier.broadcast == QWORD_BROADCAST
5199 && i.types[given].bitfield.qword));
5202 /* Check if operands are valid for the instruction. */
5205 check_VecOperands (const insn_template *t)
5209 static const i386_cpu_flags avx512 = CPU_ANY_AVX512F_FLAGS;
5211 /* Templates allowing for ZMMword as well as YMMword and/or XMMword for
5212 any one operand are implicity requiring AVX512VL support if the actual
5213 operand size is YMMword or XMMword. Since this function runs after
5214 template matching, there's no need to check for YMMword/XMMword in
5216 cpu = cpu_flags_and (t->cpu_flags, avx512);
5217 if (!cpu_flags_all_zero (&cpu)
5218 && !t->cpu_flags.bitfield.cpuavx512vl
5219 && !cpu_arch_flags.bitfield.cpuavx512vl)
5221 for (op = 0; op < t->operands; ++op)
5223 if (t->operand_types[op].bitfield.zmmword
5224 && (i.types[op].bitfield.ymmword
5225 || i.types[op].bitfield.xmmword))
5227 i.error = unsupported;
5233 /* Without VSIB byte, we can't have a vector register for index. */
5234 if (!t->opcode_modifier.vecsib
5236 && (i.index_reg->reg_type.bitfield.xmmword
5237 || i.index_reg->reg_type.bitfield.ymmword
5238 || i.index_reg->reg_type.bitfield.zmmword))
5240 i.error = unsupported_vector_index_register;
5244 /* Check if default mask is allowed. */
5245 if (t->opcode_modifier.nodefmask
5246 && (!i.mask || i.mask->mask->reg_num == 0))
5248 i.error = no_default_mask;
5252 /* For VSIB byte, we need a vector register for index, and all vector
5253 registers must be distinct. */
5254 if (t->opcode_modifier.vecsib)
5257 || !((t->opcode_modifier.vecsib == VecSIB128
5258 && i.index_reg->reg_type.bitfield.xmmword)
5259 || (t->opcode_modifier.vecsib == VecSIB256
5260 && i.index_reg->reg_type.bitfield.ymmword)
5261 || (t->opcode_modifier.vecsib == VecSIB512
5262 && i.index_reg->reg_type.bitfield.zmmword)))
5264 i.error = invalid_vsib_address;
5268 gas_assert (i.reg_operands == 2 || i.mask);
5269 if (i.reg_operands == 2 && !i.mask)
5271 gas_assert (i.types[0].bitfield.regsimd);
5272 gas_assert (i.types[0].bitfield.xmmword
5273 || i.types[0].bitfield.ymmword);
5274 gas_assert (i.types[2].bitfield.regsimd);
5275 gas_assert (i.types[2].bitfield.xmmword
5276 || i.types[2].bitfield.ymmword);
5277 if (operand_check == check_none)
5279 if (register_number (i.op[0].regs)
5280 != register_number (i.index_reg)
5281 && register_number (i.op[2].regs)
5282 != register_number (i.index_reg)
5283 && register_number (i.op[0].regs)
5284 != register_number (i.op[2].regs))
5286 if (operand_check == check_error)
5288 i.error = invalid_vector_register_set;
5291 as_warn (_("mask, index, and destination registers should be distinct"));
5293 else if (i.reg_operands == 1 && i.mask)
5295 if (i.types[1].bitfield.regsimd
5296 && (i.types[1].bitfield.xmmword
5297 || i.types[1].bitfield.ymmword
5298 || i.types[1].bitfield.zmmword)
5299 && (register_number (i.op[1].regs)
5300 == register_number (i.index_reg)))
5302 if (operand_check == check_error)
5304 i.error = invalid_vector_register_set;
5307 if (operand_check != check_none)
5308 as_warn (_("index and destination registers should be distinct"));
5313 /* Check if broadcast is supported by the instruction and is applied
5314 to the memory operand. */
5317 i386_operand_type type, overlap;
5319 /* Check if specified broadcast is supported in this instruction,
5320 and its broadcast bytes match the memory operand. */
5321 op = i.broadcast->operand;
5322 if (!t->opcode_modifier.broadcast
5323 || !(i.flags[op] & Operand_Mem)
5324 || (!i.types[op].bitfield.unspecified
5325 && !match_broadcast_size (t, op)))
5328 i.error = unsupported_broadcast;
5332 i.broadcast->bytes = ((1 << (t->opcode_modifier.broadcast - 1))
5333 * i.broadcast->type);
5334 operand_type_set (&type, 0);
5335 switch (i.broadcast->bytes)
5338 type.bitfield.word = 1;
5341 type.bitfield.dword = 1;
5344 type.bitfield.qword = 1;
5347 type.bitfield.xmmword = 1;
5350 type.bitfield.ymmword = 1;
5353 type.bitfield.zmmword = 1;
5359 overlap = operand_type_and (type, t->operand_types[op]);
5360 if (operand_type_all_zero (&overlap))
5363 if (t->opcode_modifier.checkregsize)
5367 type.bitfield.baseindex = 1;
5368 for (j = 0; j < i.operands; ++j)
5371 && !operand_type_register_match(i.types[j],
5372 t->operand_types[j],
5374 t->operand_types[op]))
5379 /* If broadcast is supported in this instruction, we need to check if
5380 operand of one-element size isn't specified without broadcast. */
5381 else if (t->opcode_modifier.broadcast && i.mem_operands)
5383 /* Find memory operand. */
5384 for (op = 0; op < i.operands; op++)
5385 if (operand_type_check (i.types[op], anymem))
5387 gas_assert (op < i.operands);
5388 /* Check size of the memory operand. */
5389 if (match_broadcast_size (t, op))
5391 i.error = broadcast_needed;
5396 op = MAX_OPERANDS - 1; /* Avoid uninitialized variable warning. */
5398 /* Check if requested masking is supported. */
5401 switch (t->opcode_modifier.masking)
5405 case MERGING_MASKING:
5406 if (i.mask->zeroing)
5409 i.error = unsupported_masking;
5413 case DYNAMIC_MASKING:
5414 /* Memory destinations allow only merging masking. */
5415 if (i.mask->zeroing && i.mem_operands)
5417 /* Find memory operand. */
5418 for (op = 0; op < i.operands; op++)
5419 if (i.flags[op] & Operand_Mem)
5421 gas_assert (op < i.operands);
5422 if (op == i.operands - 1)
5424 i.error = unsupported_masking;
5434 /* Check if masking is applied to dest operand. */
5435 if (i.mask && (i.mask->operand != (int) (i.operands - 1)))
5437 i.error = mask_not_on_destination;
5444 if ((i.rounding->type != saeonly
5445 && !t->opcode_modifier.staticrounding)
5446 || (i.rounding->type == saeonly
5447 && (t->opcode_modifier.staticrounding
5448 || !t->opcode_modifier.sae)))
5450 i.error = unsupported_rc_sae;
5453 /* If the instruction has several immediate operands and one of
5454 them is rounding, the rounding operand should be the last
5455 immediate operand. */
5456 if (i.imm_operands > 1
5457 && i.rounding->operand != (int) (i.imm_operands - 1))
5459 i.error = rc_sae_operand_not_last_imm;
5464 /* Check vector Disp8 operand. */
5465 if (t->opcode_modifier.disp8memshift
5466 && i.disp_encoding != disp_encoding_32bit)
5469 i.memshift = t->opcode_modifier.broadcast - 1;
5470 else if (t->opcode_modifier.disp8memshift != DISP8_SHIFT_VL)
5471 i.memshift = t->opcode_modifier.disp8memshift;
5474 const i386_operand_type *type = NULL;
5477 for (op = 0; op < i.operands; op++)
5478 if (operand_type_check (i.types[op], anymem))
5480 if (t->opcode_modifier.evex == EVEXLIG)
5481 i.memshift = 2 + (i.suffix == QWORD_MNEM_SUFFIX);
5482 else if (t->operand_types[op].bitfield.xmmword
5483 + t->operand_types[op].bitfield.ymmword
5484 + t->operand_types[op].bitfield.zmmword <= 1)
5485 type = &t->operand_types[op];
5486 else if (!i.types[op].bitfield.unspecified)
5487 type = &i.types[op];
5489 else if (i.types[op].bitfield.regsimd
5490 && t->opcode_modifier.evex != EVEXLIG)
5492 if (i.types[op].bitfield.zmmword)
5494 else if (i.types[op].bitfield.ymmword && i.memshift < 5)
5496 else if (i.types[op].bitfield.xmmword && i.memshift < 4)
5502 if (type->bitfield.zmmword)
5504 else if (type->bitfield.ymmword)
5506 else if (type->bitfield.xmmword)
5510 /* For the check in fits_in_disp8(). */
5511 if (i.memshift == 0)
5515 for (op = 0; op < i.operands; op++)
5516 if (operand_type_check (i.types[op], disp)
5517 && i.op[op].disps->X_op == O_constant)
5519 if (fits_in_disp8 (i.op[op].disps->X_add_number))
5521 i.types[op].bitfield.disp8 = 1;
5524 i.types[op].bitfield.disp8 = 0;
5533 /* Check if operands are valid for the instruction. Update VEX
5537 VEX_check_operands (const insn_template *t)
5539 if (i.vec_encoding == vex_encoding_evex)
5541 /* This instruction must be encoded with EVEX prefix. */
5542 if (!is_evex_encoding (t))
5544 i.error = unsupported;
5550 if (!t->opcode_modifier.vex)
5552 /* This instruction template doesn't have VEX prefix. */
5553 if (i.vec_encoding != vex_encoding_default)
5555 i.error = unsupported;
5561 /* Only check VEX_Imm4, which must be the first operand. */
5562 if (t->operand_types[0].bitfield.vec_imm4)
5564 if (i.op[0].imms->X_op != O_constant
5565 || !fits_in_imm4 (i.op[0].imms->X_add_number))
5571 /* Turn off Imm8 so that update_imm won't complain. */
5572 i.types[0] = vec_imm4;
5578 static const insn_template *
5579 match_template (char mnem_suffix)
5581 /* Points to template once we've found it. */
5582 const insn_template *t;
5583 i386_operand_type overlap0, overlap1, overlap2, overlap3;
5584 i386_operand_type overlap4;
5585 unsigned int found_reverse_match;
5586 i386_opcode_modifier suffix_check, mnemsuf_check;
5587 i386_operand_type operand_types [MAX_OPERANDS];
5588 int addr_prefix_disp;
5590 unsigned int found_cpu_match, size_match;
5591 unsigned int check_register;
5592 enum i386_error specific_error = 0;
5594 #if MAX_OPERANDS != 5
5595 # error "MAX_OPERANDS must be 5."
5598 found_reverse_match = 0;
5599 addr_prefix_disp = -1;
5601 memset (&suffix_check, 0, sizeof (suffix_check));
5602 if (intel_syntax && i.broadcast)
5604 else if (i.suffix == BYTE_MNEM_SUFFIX)
5605 suffix_check.no_bsuf = 1;
5606 else if (i.suffix == WORD_MNEM_SUFFIX)
5607 suffix_check.no_wsuf = 1;
5608 else if (i.suffix == SHORT_MNEM_SUFFIX)
5609 suffix_check.no_ssuf = 1;
5610 else if (i.suffix == LONG_MNEM_SUFFIX)
5611 suffix_check.no_lsuf = 1;
5612 else if (i.suffix == QWORD_MNEM_SUFFIX)
5613 suffix_check.no_qsuf = 1;
5614 else if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX)
5615 suffix_check.no_ldsuf = 1;
5617 memset (&mnemsuf_check, 0, sizeof (mnemsuf_check));
5620 switch (mnem_suffix)
5622 case BYTE_MNEM_SUFFIX: mnemsuf_check.no_bsuf = 1; break;
5623 case WORD_MNEM_SUFFIX: mnemsuf_check.no_wsuf = 1; break;
5624 case SHORT_MNEM_SUFFIX: mnemsuf_check.no_ssuf = 1; break;
5625 case LONG_MNEM_SUFFIX: mnemsuf_check.no_lsuf = 1; break;
5626 case QWORD_MNEM_SUFFIX: mnemsuf_check.no_qsuf = 1; break;
5630 /* Must have right number of operands. */
5631 i.error = number_of_operands_mismatch;
5633 for (t = current_templates->start; t < current_templates->end; t++)
5635 addr_prefix_disp = -1;
5636 found_reverse_match = 0;
5638 if (i.operands != t->operands)
5641 /* Check processor support. */
5642 i.error = unsupported;
5643 found_cpu_match = (cpu_flags_match (t)
5644 == CPU_FLAGS_PERFECT_MATCH);
5645 if (!found_cpu_match)
5648 /* Check AT&T mnemonic. */
5649 i.error = unsupported_with_intel_mnemonic;
5650 if (intel_mnemonic && t->opcode_modifier.attmnemonic)
5653 /* Check AT&T/Intel syntax and Intel64/AMD64 ISA. */
5654 i.error = unsupported_syntax;
5655 if ((intel_syntax && t->opcode_modifier.attsyntax)
5656 || (!intel_syntax && t->opcode_modifier.intelsyntax)
5657 || (intel64 && t->opcode_modifier.amd64)
5658 || (!intel64 && t->opcode_modifier.intel64))
5661 /* Check the suffix, except for some instructions in intel mode. */
5662 i.error = invalid_instruction_suffix;
5663 if ((!intel_syntax || !t->opcode_modifier.ignoresize)
5664 && ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf)
5665 || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf)
5666 || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf)
5667 || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf)
5668 || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf)
5669 || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf)))
5671 /* In Intel mode all mnemonic suffixes must be explicitly allowed. */
5672 if ((t->opcode_modifier.no_bsuf && mnemsuf_check.no_bsuf)
5673 || (t->opcode_modifier.no_wsuf && mnemsuf_check.no_wsuf)
5674 || (t->opcode_modifier.no_lsuf && mnemsuf_check.no_lsuf)
5675 || (t->opcode_modifier.no_ssuf && mnemsuf_check.no_ssuf)
5676 || (t->opcode_modifier.no_qsuf && mnemsuf_check.no_qsuf)
5677 || (t->opcode_modifier.no_ldsuf && mnemsuf_check.no_ldsuf))
5680 size_match = operand_size_match (t);
5684 for (j = 0; j < MAX_OPERANDS; j++)
5685 operand_types[j] = t->operand_types[j];
5687 /* In general, don't allow 64-bit operands in 32-bit mode. */
5688 if (i.suffix == QWORD_MNEM_SUFFIX
5689 && flag_code != CODE_64BIT
5691 ? (!t->opcode_modifier.ignoresize
5692 && !t->opcode_modifier.broadcast
5693 && !intel_float_operand (t->name))
5694 : intel_float_operand (t->name) != 2)
5695 && ((!operand_types[0].bitfield.regmmx
5696 && !operand_types[0].bitfield.regsimd)
5697 || (!operand_types[t->operands > 1].bitfield.regmmx
5698 && !operand_types[t->operands > 1].bitfield.regsimd))
5699 && (t->base_opcode != 0x0fc7
5700 || t->extension_opcode != 1 /* cmpxchg8b */))
5703 /* In general, don't allow 32-bit operands on pre-386. */
5704 else if (i.suffix == LONG_MNEM_SUFFIX
5705 && !cpu_arch_flags.bitfield.cpui386
5707 ? (!t->opcode_modifier.ignoresize
5708 && !intel_float_operand (t->name))
5709 : intel_float_operand (t->name) != 2)
5710 && ((!operand_types[0].bitfield.regmmx
5711 && !operand_types[0].bitfield.regsimd)
5712 || (!operand_types[t->operands > 1].bitfield.regmmx
5713 && !operand_types[t->operands > 1].bitfield.regsimd)))
5716 /* Do not verify operands when there are none. */
5720 /* We've found a match; break out of loop. */
5724 /* Address size prefix will turn Disp64/Disp32/Disp16 operand
5725 into Disp32/Disp16/Disp32 operand. */
5726 if (i.prefix[ADDR_PREFIX] != 0)
5728 /* There should be only one Disp operand. */
5732 for (j = 0; j < MAX_OPERANDS; j++)
5734 if (operand_types[j].bitfield.disp16)
5736 addr_prefix_disp = j;
5737 operand_types[j].bitfield.disp32 = 1;
5738 operand_types[j].bitfield.disp16 = 0;
5744 for (j = 0; j < MAX_OPERANDS; j++)
5746 if (operand_types[j].bitfield.disp32)
5748 addr_prefix_disp = j;
5749 operand_types[j].bitfield.disp32 = 0;
5750 operand_types[j].bitfield.disp16 = 1;
5756 for (j = 0; j < MAX_OPERANDS; j++)
5758 if (operand_types[j].bitfield.disp64)
5760 addr_prefix_disp = j;
5761 operand_types[j].bitfield.disp64 = 0;
5762 operand_types[j].bitfield.disp32 = 1;
5770 /* Force 0x8b encoding for "mov foo@GOT, %eax". */
5771 if (i.reloc[0] == BFD_RELOC_386_GOT32 && t->base_opcode == 0xa0)
5774 /* We check register size if needed. */
5775 if (t->opcode_modifier.checkregsize)
5777 check_register = (1 << t->operands) - 1;
5779 check_register &= ~(1 << i.broadcast->operand);
5784 overlap0 = operand_type_and (i.types[0], operand_types[0]);
5785 switch (t->operands)
5788 if (!operand_type_match (overlap0, i.types[0]))
5792 /* xchg %eax, %eax is a special case. It is an alias for nop
5793 only in 32bit mode and we can use opcode 0x90. In 64bit
5794 mode, we can't use 0x90 for xchg %eax, %eax since it should
5795 zero-extend %eax to %rax. */
5796 if (flag_code == CODE_64BIT
5797 && t->base_opcode == 0x90
5798 && operand_type_equal (&i.types [0], &acc32)
5799 && operand_type_equal (&i.types [1], &acc32))
5801 /* xrelease mov %eax, <disp> is another special case. It must not
5802 match the accumulator-only encoding of mov. */
5803 if (flag_code != CODE_64BIT
5805 && t->base_opcode == 0xa0
5806 && i.types[0].bitfield.acc
5807 && operand_type_check (i.types[1], anymem))
5812 if (!(size_match & MATCH_STRAIGHT))
5814 /* Reverse direction of operands if swapping is possible in the first
5815 place (operands need to be symmetric) and
5816 - the load form is requested, and the template is a store form,
5817 - the store form is requested, and the template is a load form,
5818 - the non-default (swapped) form is requested. */
5819 overlap1 = operand_type_and (operand_types[0], operand_types[1]);
5820 if (t->opcode_modifier.d && i.reg_operands == i.operands
5821 && !operand_type_all_zero (&overlap1))
5822 switch (i.dir_encoding)
5824 case dir_encoding_load:
5825 if (operand_type_check (operand_types[i.operands - 1], anymem)
5826 || operand_types[i.operands - 1].bitfield.regmem)
5830 case dir_encoding_store:
5831 if (!operand_type_check (operand_types[i.operands - 1], anymem)
5832 && !operand_types[i.operands - 1].bitfield.regmem)
5836 case dir_encoding_swap:
5839 case dir_encoding_default:
5842 /* If we want store form, we skip the current load. */
5843 if ((i.dir_encoding == dir_encoding_store
5844 || i.dir_encoding == dir_encoding_swap)
5845 && i.mem_operands == 0
5846 && t->opcode_modifier.load)
5851 overlap1 = operand_type_and (i.types[1], operand_types[1]);
5852 if (!operand_type_match (overlap0, i.types[0])
5853 || !operand_type_match (overlap1, i.types[1])
5854 || ((check_register & 3) == 3
5855 && !operand_type_register_match (i.types[0],
5860 /* Check if other direction is valid ... */
5861 if (!t->opcode_modifier.d)
5865 if (!(size_match & MATCH_REVERSE))
5867 /* Try reversing direction of operands. */
5868 overlap0 = operand_type_and (i.types[0], operand_types[i.operands - 1]);
5869 overlap1 = operand_type_and (i.types[i.operands - 1], operand_types[0]);
5870 if (!operand_type_match (overlap0, i.types[0])
5871 || !operand_type_match (overlap1, i.types[i.operands - 1])
5873 && !operand_type_register_match (i.types[0],
5874 operand_types[i.operands - 1],
5875 i.types[i.operands - 1],
5878 /* Does not match either direction. */
5881 /* found_reverse_match holds which of D or FloatR
5883 if (!t->opcode_modifier.d)
5884 found_reverse_match = 0;
5885 else if (operand_types[0].bitfield.tbyte)
5886 found_reverse_match = Opcode_FloatD;
5887 else if (operand_types[0].bitfield.xmmword
5888 || operand_types[i.operands - 1].bitfield.xmmword
5889 || operand_types[0].bitfield.regmmx
5890 || operand_types[i.operands - 1].bitfield.regmmx
5891 || is_any_vex_encoding(t))
5892 found_reverse_match = (t->base_opcode & 0xee) != 0x6e
5893 ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD;
5895 found_reverse_match = Opcode_D;
5896 if (t->opcode_modifier.floatr)
5897 found_reverse_match |= Opcode_FloatR;
5901 /* Found a forward 2 operand match here. */
5902 switch (t->operands)
5905 overlap4 = operand_type_and (i.types[4],
5909 overlap3 = operand_type_and (i.types[3],
5913 overlap2 = operand_type_and (i.types[2],
5918 switch (t->operands)
5921 if (!operand_type_match (overlap4, i.types[4])
5922 || !operand_type_register_match (i.types[3],
5929 if (!operand_type_match (overlap3, i.types[3])
5930 || ((check_register & 0xa) == 0xa
5931 && !operand_type_register_match (i.types[1],
5935 || ((check_register & 0xc) == 0xc
5936 && !operand_type_register_match (i.types[2],
5943 /* Here we make use of the fact that there are no
5944 reverse match 3 operand instructions. */
5945 if (!operand_type_match (overlap2, i.types[2])
5946 || ((check_register & 5) == 5
5947 && !operand_type_register_match (i.types[0],
5951 || ((check_register & 6) == 6
5952 && !operand_type_register_match (i.types[1],
5960 /* Found either forward/reverse 2, 3 or 4 operand match here:
5961 slip through to break. */
5963 if (!found_cpu_match)
5966 /* Check if vector and VEX operands are valid. */
5967 if (check_VecOperands (t) || VEX_check_operands (t))
5969 specific_error = i.error;
5973 /* We've found a match; break out of loop. */
5977 if (t == current_templates->end)
5979 /* We found no match. */
5980 const char *err_msg;
5981 switch (specific_error ? specific_error : i.error)
5985 case operand_size_mismatch:
5986 err_msg = _("operand size mismatch");
5988 case operand_type_mismatch:
5989 err_msg = _("operand type mismatch");
5991 case register_type_mismatch:
5992 err_msg = _("register type mismatch");
5994 case number_of_operands_mismatch:
5995 err_msg = _("number of operands mismatch");
5997 case invalid_instruction_suffix:
5998 err_msg = _("invalid instruction suffix");
6001 err_msg = _("constant doesn't fit in 4 bits");
6003 case unsupported_with_intel_mnemonic:
6004 err_msg = _("unsupported with Intel mnemonic");
6006 case unsupported_syntax:
6007 err_msg = _("unsupported syntax");
6010 as_bad (_("unsupported instruction `%s'"),
6011 current_templates->start->name);
6013 case invalid_vsib_address:
6014 err_msg = _("invalid VSIB address");
6016 case invalid_vector_register_set:
6017 err_msg = _("mask, index, and destination registers must be distinct");
6019 case unsupported_vector_index_register:
6020 err_msg = _("unsupported vector index register");
6022 case unsupported_broadcast:
6023 err_msg = _("unsupported broadcast");
6025 case broadcast_needed:
6026 err_msg = _("broadcast is needed for operand of such type");
6028 case unsupported_masking:
6029 err_msg = _("unsupported masking");
6031 case mask_not_on_destination:
6032 err_msg = _("mask not on destination operand");
6034 case no_default_mask:
6035 err_msg = _("default mask isn't allowed");
6037 case unsupported_rc_sae:
6038 err_msg = _("unsupported static rounding/sae");
6040 case rc_sae_operand_not_last_imm:
6042 err_msg = _("RC/SAE operand must precede immediate operands");
6044 err_msg = _("RC/SAE operand must follow immediate operands");
6046 case invalid_register_operand:
6047 err_msg = _("invalid register operand");
6050 as_bad (_("%s for `%s'"), err_msg,
6051 current_templates->start->name);
6055 if (!quiet_warnings)
6058 && (i.types[0].bitfield.jumpabsolute
6059 != operand_types[0].bitfield.jumpabsolute))
6061 as_warn (_("indirect %s without `*'"), t->name);
6064 if (t->opcode_modifier.isprefix
6065 && t->opcode_modifier.ignoresize)
6067 /* Warn them that a data or address size prefix doesn't
6068 affect assembly of the next line of code. */
6069 as_warn (_("stand-alone `%s' prefix"), t->name);
6073 /* Copy the template we found. */
6076 if (addr_prefix_disp != -1)
6077 i.tm.operand_types[addr_prefix_disp]
6078 = operand_types[addr_prefix_disp];
6080 if (found_reverse_match)
6082 /* If we found a reverse match we must alter the opcode
6083 direction bit. found_reverse_match holds bits to change
6084 (different for int & float insns). */
6086 i.tm.base_opcode ^= found_reverse_match;
6088 i.tm.operand_types[0] = operand_types[i.operands - 1];
6089 i.tm.operand_types[i.operands - 1] = operand_types[0];
6098 int mem_op = operand_type_check (i.types[0], anymem) ? 0 : 1;
6099 if (i.tm.operand_types[mem_op].bitfield.esseg)
6101 if (i.seg[0] != NULL && i.seg[0] != &es)
6103 as_bad (_("`%s' operand %d must use `%ses' segment"),
6109 /* There's only ever one segment override allowed per instruction.
6110 This instruction possibly has a legal segment override on the
6111 second operand, so copy the segment to where non-string
6112 instructions store it, allowing common code. */
6113 i.seg[0] = i.seg[1];
6115 else if (i.tm.operand_types[mem_op + 1].bitfield.esseg)
6117 if (i.seg[1] != NULL && i.seg[1] != &es)
6119 as_bad (_("`%s' operand %d must use `%ses' segment"),
6130 process_suffix (void)
6132 /* If matched instruction specifies an explicit instruction mnemonic
6134 if (i.tm.opcode_modifier.size == SIZE16)
6135 i.suffix = WORD_MNEM_SUFFIX;
6136 else if (i.tm.opcode_modifier.size == SIZE32)
6137 i.suffix = LONG_MNEM_SUFFIX;
6138 else if (i.tm.opcode_modifier.size == SIZE64)
6139 i.suffix = QWORD_MNEM_SUFFIX;
6140 else if (i.reg_operands)
6142 /* If there's no instruction mnemonic suffix we try to invent one
6143 based on register operands. */
6146 /* We take i.suffix from the last register operand specified,
6147 Destination register type is more significant than source
6148 register type. crc32 in SSE4.2 prefers source register
6150 if (i.tm.base_opcode == 0xf20f38f0 && i.types[0].bitfield.reg)
6152 if (i.types[0].bitfield.byte)
6153 i.suffix = BYTE_MNEM_SUFFIX;
6154 else if (i.types[0].bitfield.word)
6155 i.suffix = WORD_MNEM_SUFFIX;
6156 else if (i.types[0].bitfield.dword)
6157 i.suffix = LONG_MNEM_SUFFIX;
6158 else if (i.types[0].bitfield.qword)
6159 i.suffix = QWORD_MNEM_SUFFIX;
6166 if (i.tm.base_opcode == 0xf20f38f0)
6168 /* We have to know the operand size for crc32. */
6169 as_bad (_("ambiguous memory operand size for `%s`"),
6174 for (op = i.operands; --op >= 0;)
6175 if (!i.tm.operand_types[op].bitfield.inoutportreg
6176 && !i.tm.operand_types[op].bitfield.shiftcount)
6178 if (!i.types[op].bitfield.reg)
6180 if (i.types[op].bitfield.byte)
6181 i.suffix = BYTE_MNEM_SUFFIX;
6182 else if (i.types[op].bitfield.word)
6183 i.suffix = WORD_MNEM_SUFFIX;
6184 else if (i.types[op].bitfield.dword)
6185 i.suffix = LONG_MNEM_SUFFIX;
6186 else if (i.types[op].bitfield.qword)
6187 i.suffix = QWORD_MNEM_SUFFIX;
6194 else if (i.suffix == BYTE_MNEM_SUFFIX)
6197 && i.tm.opcode_modifier.ignoresize
6198 && i.tm.opcode_modifier.no_bsuf)
6200 else if (!check_byte_reg ())
6203 else if (i.suffix == LONG_MNEM_SUFFIX)
6206 && i.tm.opcode_modifier.ignoresize
6207 && i.tm.opcode_modifier.no_lsuf
6208 && !i.tm.opcode_modifier.todword
6209 && !i.tm.opcode_modifier.toqword)
6211 else if (!check_long_reg ())
6214 else if (i.suffix == QWORD_MNEM_SUFFIX)
6217 && i.tm.opcode_modifier.ignoresize
6218 && i.tm.opcode_modifier.no_qsuf
6219 && !i.tm.opcode_modifier.todword
6220 && !i.tm.opcode_modifier.toqword)
6222 else if (!check_qword_reg ())
6225 else if (i.suffix == WORD_MNEM_SUFFIX)
6228 && i.tm.opcode_modifier.ignoresize
6229 && i.tm.opcode_modifier.no_wsuf)
6231 else if (!check_word_reg ())
6234 else if (intel_syntax && i.tm.opcode_modifier.ignoresize)
6235 /* Do nothing if the instruction is going to ignore the prefix. */
6240 else if (i.tm.opcode_modifier.defaultsize
6242 /* exclude fldenv/frstor/fsave/fstenv */
6243 && i.tm.opcode_modifier.no_ssuf)
6245 i.suffix = stackop_size;
6247 else if (intel_syntax
6249 && (i.tm.operand_types[0].bitfield.jumpabsolute
6250 || i.tm.opcode_modifier.jumpbyte
6251 || i.tm.opcode_modifier.jumpintersegment
6252 || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */
6253 && i.tm.extension_opcode <= 3)))
6258 if (!i.tm.opcode_modifier.no_qsuf)
6260 i.suffix = QWORD_MNEM_SUFFIX;
6265 if (!i.tm.opcode_modifier.no_lsuf)
6266 i.suffix = LONG_MNEM_SUFFIX;
6269 if (!i.tm.opcode_modifier.no_wsuf)
6270 i.suffix = WORD_MNEM_SUFFIX;
6279 if (i.tm.opcode_modifier.w)
6281 as_bad (_("no instruction mnemonic suffix given and "
6282 "no register operands; can't size instruction"));
6288 unsigned int suffixes;
6290 suffixes = !i.tm.opcode_modifier.no_bsuf;
6291 if (!i.tm.opcode_modifier.no_wsuf)
6293 if (!i.tm.opcode_modifier.no_lsuf)
6295 if (!i.tm.opcode_modifier.no_ldsuf)
6297 if (!i.tm.opcode_modifier.no_ssuf)
6299 if (flag_code == CODE_64BIT && !i.tm.opcode_modifier.no_qsuf)
6302 /* There are more than suffix matches. */
6303 if (i.tm.opcode_modifier.w
6304 || ((suffixes & (suffixes - 1))
6305 && !i.tm.opcode_modifier.defaultsize
6306 && !i.tm.opcode_modifier.ignoresize))
6308 as_bad (_("ambiguous operand size for `%s'"), i.tm.name);
6314 /* Change the opcode based on the operand size given by i.suffix. */
6317 /* Size floating point instruction. */
6318 case LONG_MNEM_SUFFIX:
6319 if (i.tm.opcode_modifier.floatmf)
6321 i.tm.base_opcode ^= 4;
6325 case WORD_MNEM_SUFFIX:
6326 case QWORD_MNEM_SUFFIX:
6327 /* It's not a byte, select word/dword operation. */
6328 if (i.tm.opcode_modifier.w)
6330 if (i.tm.opcode_modifier.shortform)
6331 i.tm.base_opcode |= 8;
6333 i.tm.base_opcode |= 1;
6336 case SHORT_MNEM_SUFFIX:
6337 /* Now select between word & dword operations via the operand
6338 size prefix, except for instructions that will ignore this
6340 if (i.reg_operands > 0
6341 && i.types[0].bitfield.reg
6342 && i.tm.opcode_modifier.addrprefixopreg
6343 && (i.tm.opcode_modifier.immext
6344 || i.operands == 1))
6346 /* The address size override prefix changes the size of the
6348 if ((flag_code == CODE_32BIT
6349 && i.op[0].regs->reg_type.bitfield.word)
6350 || (flag_code != CODE_32BIT
6351 && i.op[0].regs->reg_type.bitfield.dword))
6352 if (!add_prefix (ADDR_PREFIX_OPCODE))
6355 else if (i.suffix != QWORD_MNEM_SUFFIX
6356 && !i.tm.opcode_modifier.ignoresize
6357 && !i.tm.opcode_modifier.floatmf
6358 && !i.tm.opcode_modifier.vex
6359 && !i.tm.opcode_modifier.vexopcode
6360 && !is_evex_encoding (&i.tm)
6361 && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT)
6362 || (flag_code == CODE_64BIT
6363 && i.tm.opcode_modifier.jumpbyte)))
6365 unsigned int prefix = DATA_PREFIX_OPCODE;
6367 if (i.tm.opcode_modifier.jumpbyte) /* jcxz, loop */
6368 prefix = ADDR_PREFIX_OPCODE;
6370 if (!add_prefix (prefix))
6374 /* Set mode64 for an operand. */
6375 if (i.suffix == QWORD_MNEM_SUFFIX
6376 && flag_code == CODE_64BIT
6377 && !i.tm.opcode_modifier.norex64
6378 /* Special case for xchg %rax,%rax. It is NOP and doesn't
6380 && ! (i.operands == 2
6381 && i.tm.base_opcode == 0x90
6382 && i.tm.extension_opcode == None
6383 && operand_type_equal (&i.types [0], &acc64)
6384 && operand_type_equal (&i.types [1], &acc64)))
6390 if (i.reg_operands != 0
6392 && i.tm.opcode_modifier.addrprefixopreg
6393 && !i.tm.opcode_modifier.immext)
6395 /* Check invalid register operand when the address size override
6396 prefix changes the size of register operands. */
6398 enum { need_word, need_dword, need_qword } need;
6400 if (flag_code == CODE_32BIT)
6401 need = i.prefix[ADDR_PREFIX] ? need_word : need_dword;
6404 if (i.prefix[ADDR_PREFIX])
6407 need = flag_code == CODE_64BIT ? need_qword : need_word;
6410 for (op = 0; op < i.operands; op++)
6411 if (i.types[op].bitfield.reg
6412 && ((need == need_word
6413 && !i.op[op].regs->reg_type.bitfield.word)
6414 || (need == need_dword
6415 && !i.op[op].regs->reg_type.bitfield.dword)
6416 || (need == need_qword
6417 && !i.op[op].regs->reg_type.bitfield.qword)))
6419 as_bad (_("invalid register operand size for `%s'"),
6429 check_byte_reg (void)
6433 for (op = i.operands; --op >= 0;)
6435 /* Skip non-register operands. */
6436 if (!i.types[op].bitfield.reg)
6439 /* If this is an eight bit register, it's OK. If it's the 16 or
6440 32 bit version of an eight bit register, we will just use the
6441 low portion, and that's OK too. */
6442 if (i.types[op].bitfield.byte)
6445 /* I/O port address operands are OK too. */
6446 if (i.tm.operand_types[op].bitfield.inoutportreg)
6449 /* crc32 doesn't generate this warning. */
6450 if (i.tm.base_opcode == 0xf20f38f0)
6453 if ((i.types[op].bitfield.word
6454 || i.types[op].bitfield.dword
6455 || i.types[op].bitfield.qword)
6456 && i.op[op].regs->reg_num < 4
6457 /* Prohibit these changes in 64bit mode, since the lowering
6458 would be more complicated. */
6459 && flag_code != CODE_64BIT)
6461 #if REGISTER_WARNINGS
6462 if (!quiet_warnings)
6463 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6465 (i.op[op].regs + (i.types[op].bitfield.word
6466 ? REGNAM_AL - REGNAM_AX
6467 : REGNAM_AL - REGNAM_EAX))->reg_name,
6469 i.op[op].regs->reg_name,
6474 /* Any other register is bad. */
6475 if (i.types[op].bitfield.reg
6476 || i.types[op].bitfield.regmmx
6477 || i.types[op].bitfield.regsimd
6478 || i.types[op].bitfield.sreg2
6479 || i.types[op].bitfield.sreg3
6480 || i.types[op].bitfield.control
6481 || i.types[op].bitfield.debug
6482 || i.types[op].bitfield.test)
6484 as_bad (_("`%s%s' not allowed with `%s%c'"),
6486 i.op[op].regs->reg_name,
6496 check_long_reg (void)
6500 for (op = i.operands; --op >= 0;)
6501 /* Skip non-register operands. */
6502 if (!i.types[op].bitfield.reg)
6504 /* Reject eight bit registers, except where the template requires
6505 them. (eg. movzb) */
6506 else if (i.types[op].bitfield.byte
6507 && (i.tm.operand_types[op].bitfield.reg
6508 || i.tm.operand_types[op].bitfield.acc)
6509 && (i.tm.operand_types[op].bitfield.word
6510 || i.tm.operand_types[op].bitfield.dword))
6512 as_bad (_("`%s%s' not allowed with `%s%c'"),
6514 i.op[op].regs->reg_name,
6519 /* Warn if the e prefix on a general reg is missing. */
6520 else if ((!quiet_warnings || flag_code == CODE_64BIT)
6521 && i.types[op].bitfield.word
6522 && (i.tm.operand_types[op].bitfield.reg
6523 || i.tm.operand_types[op].bitfield.acc)
6524 && i.tm.operand_types[op].bitfield.dword)
6526 /* Prohibit these changes in the 64bit mode, since the
6527 lowering is more complicated. */
6528 if (flag_code == CODE_64BIT)
6530 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6531 register_prefix, i.op[op].regs->reg_name,
6535 #if REGISTER_WARNINGS
6536 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6538 (i.op[op].regs + REGNAM_EAX - REGNAM_AX)->reg_name,
6539 register_prefix, i.op[op].regs->reg_name, i.suffix);
6542 /* Warn if the r prefix on a general reg is present. */
6543 else if (i.types[op].bitfield.qword
6544 && (i.tm.operand_types[op].bitfield.reg
6545 || i.tm.operand_types[op].bitfield.acc)
6546 && i.tm.operand_types[op].bitfield.dword)
6549 && i.tm.opcode_modifier.toqword
6550 && !i.types[0].bitfield.regsimd)
6552 /* Convert to QWORD. We want REX byte. */
6553 i.suffix = QWORD_MNEM_SUFFIX;
6557 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6558 register_prefix, i.op[op].regs->reg_name,
6567 check_qword_reg (void)
6571 for (op = i.operands; --op >= 0; )
6572 /* Skip non-register operands. */
6573 if (!i.types[op].bitfield.reg)
6575 /* Reject eight bit registers, except where the template requires
6576 them. (eg. movzb) */
6577 else if (i.types[op].bitfield.byte
6578 && (i.tm.operand_types[op].bitfield.reg
6579 || i.tm.operand_types[op].bitfield.acc)
6580 && (i.tm.operand_types[op].bitfield.word
6581 || i.tm.operand_types[op].bitfield.dword))
6583 as_bad (_("`%s%s' not allowed with `%s%c'"),
6585 i.op[op].regs->reg_name,
6590 /* Warn if the r prefix on a general reg is missing. */
6591 else if ((i.types[op].bitfield.word
6592 || i.types[op].bitfield.dword)
6593 && (i.tm.operand_types[op].bitfield.reg
6594 || i.tm.operand_types[op].bitfield.acc)
6595 && i.tm.operand_types[op].bitfield.qword)
6597 /* Prohibit these changes in the 64bit mode, since the
6598 lowering is more complicated. */
6600 && i.tm.opcode_modifier.todword
6601 && !i.types[0].bitfield.regsimd)
6603 /* Convert to DWORD. We don't want REX byte. */
6604 i.suffix = LONG_MNEM_SUFFIX;
6608 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6609 register_prefix, i.op[op].regs->reg_name,
6618 check_word_reg (void)
6621 for (op = i.operands; --op >= 0;)
6622 /* Skip non-register operands. */
6623 if (!i.types[op].bitfield.reg)
6625 /* Reject eight bit registers, except where the template requires
6626 them. (eg. movzb) */
6627 else if (i.types[op].bitfield.byte
6628 && (i.tm.operand_types[op].bitfield.reg
6629 || i.tm.operand_types[op].bitfield.acc)
6630 && (i.tm.operand_types[op].bitfield.word
6631 || i.tm.operand_types[op].bitfield.dword))
6633 as_bad (_("`%s%s' not allowed with `%s%c'"),
6635 i.op[op].regs->reg_name,
6640 /* Warn if the e or r prefix on a general reg is present. */
6641 else if ((!quiet_warnings || flag_code == CODE_64BIT)
6642 && (i.types[op].bitfield.dword
6643 || i.types[op].bitfield.qword)
6644 && (i.tm.operand_types[op].bitfield.reg
6645 || i.tm.operand_types[op].bitfield.acc)
6646 && i.tm.operand_types[op].bitfield.word)
6648 /* Prohibit these changes in the 64bit mode, since the
6649 lowering is more complicated. */
6650 if (flag_code == CODE_64BIT)
6652 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
6653 register_prefix, i.op[op].regs->reg_name,
6657 #if REGISTER_WARNINGS
6658 as_warn (_("using `%s%s' instead of `%s%s' due to `%c' suffix"),
6660 (i.op[op].regs + REGNAM_AX - REGNAM_EAX)->reg_name,
6661 register_prefix, i.op[op].regs->reg_name, i.suffix);
6668 update_imm (unsigned int j)
6670 i386_operand_type overlap = i.types[j];
6671 if ((overlap.bitfield.imm8
6672 || overlap.bitfield.imm8s
6673 || overlap.bitfield.imm16
6674 || overlap.bitfield.imm32
6675 || overlap.bitfield.imm32s
6676 || overlap.bitfield.imm64)
6677 && !operand_type_equal (&overlap, &imm8)
6678 && !operand_type_equal (&overlap, &imm8s)
6679 && !operand_type_equal (&overlap, &imm16)
6680 && !operand_type_equal (&overlap, &imm32)
6681 && !operand_type_equal (&overlap, &imm32s)
6682 && !operand_type_equal (&overlap, &imm64))
6686 i386_operand_type temp;
6688 operand_type_set (&temp, 0);
6689 if (i.suffix == BYTE_MNEM_SUFFIX)
6691 temp.bitfield.imm8 = overlap.bitfield.imm8;
6692 temp.bitfield.imm8s = overlap.bitfield.imm8s;
6694 else if (i.suffix == WORD_MNEM_SUFFIX)
6695 temp.bitfield.imm16 = overlap.bitfield.imm16;
6696 else if (i.suffix == QWORD_MNEM_SUFFIX)
6698 temp.bitfield.imm64 = overlap.bitfield.imm64;
6699 temp.bitfield.imm32s = overlap.bitfield.imm32s;
6702 temp.bitfield.imm32 = overlap.bitfield.imm32;
6705 else if (operand_type_equal (&overlap, &imm16_32_32s)
6706 || operand_type_equal (&overlap, &imm16_32)
6707 || operand_type_equal (&overlap, &imm16_32s))
6709 if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0))
6714 if (!operand_type_equal (&overlap, &imm8)
6715 && !operand_type_equal (&overlap, &imm8s)
6716 && !operand_type_equal (&overlap, &imm16)
6717 && !operand_type_equal (&overlap, &imm32)
6718 && !operand_type_equal (&overlap, &imm32s)
6719 && !operand_type_equal (&overlap, &imm64))
6721 as_bad (_("no instruction mnemonic suffix given; "
6722 "can't determine immediate size"));
6726 i.types[j] = overlap;
6736 /* Update the first 2 immediate operands. */
6737 n = i.operands > 2 ? 2 : i.operands;
6740 for (j = 0; j < n; j++)
6741 if (update_imm (j) == 0)
6744 /* The 3rd operand can't be immediate operand. */
6745 gas_assert (operand_type_check (i.types[2], imm) == 0);
6752 process_operands (void)
6754 /* Default segment register this instruction will use for memory
6755 accesses. 0 means unknown. This is only for optimizing out
6756 unnecessary segment overrides. */
6757 const seg_entry *default_seg = 0;
6759 if (i.tm.opcode_modifier.sse2avx && i.tm.opcode_modifier.vexvvvv)
6761 unsigned int dupl = i.operands;
6762 unsigned int dest = dupl - 1;
6765 /* The destination must be an xmm register. */
6766 gas_assert (i.reg_operands
6767 && MAX_OPERANDS > dupl
6768 && operand_type_equal (&i.types[dest], ®xmm));
6770 if (i.tm.operand_types[0].bitfield.acc
6771 && i.tm.operand_types[0].bitfield.xmmword)
6773 if (i.tm.opcode_modifier.vexsources == VEX3SOURCES)
6775 /* Keep xmm0 for instructions with VEX prefix and 3
6777 i.tm.operand_types[0].bitfield.acc = 0;
6778 i.tm.operand_types[0].bitfield.regsimd = 1;
6783 /* We remove the first xmm0 and keep the number of
6784 operands unchanged, which in fact duplicates the
6786 for (j = 1; j < i.operands; j++)
6788 i.op[j - 1] = i.op[j];
6789 i.types[j - 1] = i.types[j];
6790 i.tm.operand_types[j - 1] = i.tm.operand_types[j];
6794 else if (i.tm.opcode_modifier.implicit1stxmm0)
6796 gas_assert ((MAX_OPERANDS - 1) > dupl
6797 && (i.tm.opcode_modifier.vexsources
6800 /* Add the implicit xmm0 for instructions with VEX prefix
6802 for (j = i.operands; j > 0; j--)
6804 i.op[j] = i.op[j - 1];
6805 i.types[j] = i.types[j - 1];
6806 i.tm.operand_types[j] = i.tm.operand_types[j - 1];
6809 = (const reg_entry *) hash_find (reg_hash, "xmm0");
6810 i.types[0] = regxmm;
6811 i.tm.operand_types[0] = regxmm;
6814 i.reg_operands += 2;
6819 i.op[dupl] = i.op[dest];
6820 i.types[dupl] = i.types[dest];
6821 i.tm.operand_types[dupl] = i.tm.operand_types[dest];
6830 i.op[dupl] = i.op[dest];
6831 i.types[dupl] = i.types[dest];
6832 i.tm.operand_types[dupl] = i.tm.operand_types[dest];
6835 if (i.tm.opcode_modifier.immext)
6838 else if (i.tm.operand_types[0].bitfield.acc
6839 && i.tm.operand_types[0].bitfield.xmmword)
6843 for (j = 1; j < i.operands; j++)
6845 i.op[j - 1] = i.op[j];
6846 i.types[j - 1] = i.types[j];
6848 /* We need to adjust fields in i.tm since they are used by
6849 build_modrm_byte. */
6850 i.tm.operand_types [j - 1] = i.tm.operand_types [j];
6857 else if (i.tm.opcode_modifier.implicitquadgroup)
6859 unsigned int regnum, first_reg_in_group, last_reg_in_group;
6861 /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */
6862 gas_assert (i.operands >= 2 && i.types[1].bitfield.regsimd);
6863 regnum = register_number (i.op[1].regs);
6864 first_reg_in_group = regnum & ~3;
6865 last_reg_in_group = first_reg_in_group + 3;
6866 if (regnum != first_reg_in_group)
6867 as_warn (_("source register `%s%s' implicitly denotes"
6868 " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"),
6869 register_prefix, i.op[1].regs->reg_name,
6870 register_prefix, i.op[1].regs->reg_name, first_reg_in_group,
6871 register_prefix, i.op[1].regs->reg_name, last_reg_in_group,
6874 else if (i.tm.opcode_modifier.regkludge)
6876 /* The imul $imm, %reg instruction is converted into
6877 imul $imm, %reg, %reg, and the clr %reg instruction
6878 is converted into xor %reg, %reg. */
6880 unsigned int first_reg_op;
6882 if (operand_type_check (i.types[0], reg))
6886 /* Pretend we saw the extra register operand. */
6887 gas_assert (i.reg_operands == 1
6888 && i.op[first_reg_op + 1].regs == 0);
6889 i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs;
6890 i.types[first_reg_op + 1] = i.types[first_reg_op];
6895 if (i.tm.opcode_modifier.shortform)
6897 if (i.types[0].bitfield.sreg2
6898 || i.types[0].bitfield.sreg3)
6900 if (i.tm.base_opcode == POP_SEG_SHORT
6901 && i.op[0].regs->reg_num == 1)
6903 as_bad (_("you can't `pop %scs'"), register_prefix);
6906 i.tm.base_opcode |= (i.op[0].regs->reg_num << 3);
6907 if ((i.op[0].regs->reg_flags & RegRex) != 0)
6912 /* The register or float register operand is in operand
6916 if ((i.types[0].bitfield.reg && i.types[0].bitfield.tbyte)
6917 || operand_type_check (i.types[0], reg))
6921 /* Register goes in low 3 bits of opcode. */
6922 i.tm.base_opcode |= i.op[op].regs->reg_num;
6923 if ((i.op[op].regs->reg_flags & RegRex) != 0)
6925 if (!quiet_warnings && i.tm.opcode_modifier.ugh)
6927 /* Warn about some common errors, but press on regardless.
6928 The first case can be generated by gcc (<= 2.8.1). */
6929 if (i.operands == 2)
6931 /* Reversed arguments on faddp, fsubp, etc. */
6932 as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name,
6933 register_prefix, i.op[!intel_syntax].regs->reg_name,
6934 register_prefix, i.op[intel_syntax].regs->reg_name);
6938 /* Extraneous `l' suffix on fp insn. */
6939 as_warn (_("translating to `%s %s%s'"), i.tm.name,
6940 register_prefix, i.op[0].regs->reg_name);
6945 else if (i.tm.opcode_modifier.modrm)
6947 /* The opcode is completed (modulo i.tm.extension_opcode which
6948 must be put into the modrm byte). Now, we make the modrm and
6949 index base bytes based on all the info we've collected. */
6951 default_seg = build_modrm_byte ();
6953 else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32)
6957 else if (i.tm.opcode_modifier.isstring)
6959 /* For the string instructions that allow a segment override
6960 on one of their operands, the default segment is ds. */
6964 if (i.tm.base_opcode == 0x8d /* lea */
6967 as_warn (_("segment override on `%s' is ineffectual"), i.tm.name);
6969 /* If a segment was explicitly specified, and the specified segment
6970 is not the default, use an opcode prefix to select it. If we
6971 never figured out what the default segment is, then default_seg
6972 will be zero at this point, and the specified segment prefix will
6974 if ((i.seg[0]) && (i.seg[0] != default_seg))
6976 if (!add_prefix (i.seg[0]->seg_prefix))
6982 static const seg_entry *
6983 build_modrm_byte (void)
6985 const seg_entry *default_seg = 0;
6986 unsigned int source, dest;
6989 vex_3_sources = i.tm.opcode_modifier.vexsources == VEX3SOURCES;
6992 unsigned int nds, reg_slot;
6995 dest = i.operands - 1;
6998 /* There are 2 kinds of instructions:
6999 1. 5 operands: 4 register operands or 3 register operands
7000 plus 1 memory operand plus one Vec_Imm4 operand, VexXDS, and
7001 VexW0 or VexW1. The destination must be either XMM, YMM or
7003 2. 4 operands: 4 register operands or 3 register operands
7004 plus 1 memory operand, with VexXDS. */
7005 gas_assert ((i.reg_operands == 4
7006 || (i.reg_operands == 3 && i.mem_operands == 1))
7007 && i.tm.opcode_modifier.vexvvvv == VEXXDS
7008 && i.tm.opcode_modifier.vexw
7009 && i.tm.operand_types[dest].bitfield.regsimd);
7011 /* If VexW1 is set, the first non-immediate operand is the source and
7012 the second non-immediate one is encoded in the immediate operand. */
7013 if (i.tm.opcode_modifier.vexw == VEXW1)
7015 source = i.imm_operands;
7016 reg_slot = i.imm_operands + 1;
7020 source = i.imm_operands + 1;
7021 reg_slot = i.imm_operands;
7024 if (i.imm_operands == 0)
7026 /* When there is no immediate operand, generate an 8bit
7027 immediate operand to encode the first operand. */
7028 exp = &im_expressions[i.imm_operands++];
7029 i.op[i.operands].imms = exp;
7030 i.types[i.operands] = imm8;
7033 gas_assert (i.tm.operand_types[reg_slot].bitfield.regsimd);
7034 exp->X_op = O_constant;
7035 exp->X_add_number = register_number (i.op[reg_slot].regs) << 4;
7036 gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0);
7040 unsigned int imm_slot;
7042 gas_assert (i.imm_operands == 1 && i.types[0].bitfield.vec_imm4);
7044 if (i.tm.opcode_modifier.immext)
7046 /* When ImmExt is set, the immediate byte is the last
7048 imm_slot = i.operands - 1;
7056 /* Turn on Imm8 so that output_imm will generate it. */
7057 i.types[imm_slot].bitfield.imm8 = 1;
7060 gas_assert (i.tm.operand_types[reg_slot].bitfield.regsimd);
7061 i.op[imm_slot].imms->X_add_number
7062 |= register_number (i.op[reg_slot].regs) << 4;
7063 gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0);
7066 gas_assert (i.tm.operand_types[nds].bitfield.regsimd);
7067 i.vex.register_specifier = i.op[nds].regs;
7072 /* i.reg_operands MUST be the number of real register operands;
7073 implicit registers do not count. If there are 3 register
7074 operands, it must be a instruction with VexNDS. For a
7075 instruction with VexNDD, the destination register is encoded
7076 in VEX prefix. If there are 4 register operands, it must be
7077 a instruction with VEX prefix and 3 sources. */
7078 if (i.mem_operands == 0
7079 && ((i.reg_operands == 2
7080 && i.tm.opcode_modifier.vexvvvv <= VEXXDS)
7081 || (i.reg_operands == 3
7082 && i.tm.opcode_modifier.vexvvvv == VEXXDS)
7083 || (i.reg_operands == 4 && vex_3_sources)))
7091 /* When there are 3 operands, one of them may be immediate,
7092 which may be the first or the last operand. Otherwise,
7093 the first operand must be shift count register (cl) or it
7094 is an instruction with VexNDS. */
7095 gas_assert (i.imm_operands == 1
7096 || (i.imm_operands == 0
7097 && (i.tm.opcode_modifier.vexvvvv == VEXXDS
7098 || i.types[0].bitfield.shiftcount)));
7099 if (operand_type_check (i.types[0], imm)
7100 || i.types[0].bitfield.shiftcount)
7106 /* When there are 4 operands, the first two must be 8bit
7107 immediate operands. The source operand will be the 3rd
7110 For instructions with VexNDS, if the first operand
7111 an imm8, the source operand is the 2nd one. If the last
7112 operand is imm8, the source operand is the first one. */
7113 gas_assert ((i.imm_operands == 2
7114 && i.types[0].bitfield.imm8
7115 && i.types[1].bitfield.imm8)
7116 || (i.tm.opcode_modifier.vexvvvv == VEXXDS
7117 && i.imm_operands == 1
7118 && (i.types[0].bitfield.imm8
7119 || i.types[i.operands - 1].bitfield.imm8
7121 if (i.imm_operands == 2)
7125 if (i.types[0].bitfield.imm8)
7132 if (is_evex_encoding (&i.tm))
7134 /* For EVEX instructions, when there are 5 operands, the
7135 first one must be immediate operand. If the second one
7136 is immediate operand, the source operand is the 3th
7137 one. If the last one is immediate operand, the source
7138 operand is the 2nd one. */
7139 gas_assert (i.imm_operands == 2
7140 && i.tm.opcode_modifier.sae
7141 && operand_type_check (i.types[0], imm));
7142 if (operand_type_check (i.types[1], imm))
7144 else if (operand_type_check (i.types[4], imm))
7158 /* RC/SAE operand could be between DEST and SRC. That happens
7159 when one operand is GPR and the other one is XMM/YMM/ZMM
7161 if (i.rounding && i.rounding->operand == (int) dest)
7164 if (i.tm.opcode_modifier.vexvvvv == VEXXDS)
7166 /* For instructions with VexNDS, the register-only source
7167 operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask
7168 register. It is encoded in VEX prefix. We need to
7169 clear RegMem bit before calling operand_type_equal. */
7171 i386_operand_type op;
7174 /* Check register-only source operand when two source
7175 operands are swapped. */
7176 if (!i.tm.operand_types[source].bitfield.baseindex
7177 && i.tm.operand_types[dest].bitfield.baseindex)
7185 op = i.tm.operand_types[vvvv];
7186 op.bitfield.regmem = 0;
7187 if ((dest + 1) >= i.operands
7188 || ((!op.bitfield.reg
7189 || (!op.bitfield.dword && !op.bitfield.qword))
7190 && !op.bitfield.regsimd
7191 && !operand_type_equal (&op, ®mask)))
7193 i.vex.register_specifier = i.op[vvvv].regs;
7199 /* One of the register operands will be encoded in the i.tm.reg
7200 field, the other in the combined i.tm.mode and i.tm.regmem
7201 fields. If no form of this instruction supports a memory
7202 destination operand, then we assume the source operand may
7203 sometimes be a memory operand and so we need to store the
7204 destination in the i.rm.reg field. */
7205 if (!i.tm.operand_types[dest].bitfield.regmem
7206 && operand_type_check (i.tm.operand_types[dest], anymem) == 0)
7208 i.rm.reg = i.op[dest].regs->reg_num;
7209 i.rm.regmem = i.op[source].regs->reg_num;
7210 if (i.op[dest].regs->reg_type.bitfield.regmmx
7211 || i.op[source].regs->reg_type.bitfield.regmmx)
7212 i.has_regmmx = TRUE;
7213 else if (i.op[dest].regs->reg_type.bitfield.regsimd
7214 || i.op[source].regs->reg_type.bitfield.regsimd)
7216 if (i.types[dest].bitfield.zmmword
7217 || i.types[source].bitfield.zmmword)
7218 i.has_regzmm = TRUE;
7219 else if (i.types[dest].bitfield.ymmword
7220 || i.types[source].bitfield.ymmword)
7221 i.has_regymm = TRUE;
7223 i.has_regxmm = TRUE;
7225 if ((i.op[dest].regs->reg_flags & RegRex) != 0)
7227 if ((i.op[dest].regs->reg_flags & RegVRex) != 0)
7229 if ((i.op[source].regs->reg_flags & RegRex) != 0)
7231 if ((i.op[source].regs->reg_flags & RegVRex) != 0)
7236 i.rm.reg = i.op[source].regs->reg_num;
7237 i.rm.regmem = i.op[dest].regs->reg_num;
7238 if ((i.op[dest].regs->reg_flags & RegRex) != 0)
7240 if ((i.op[dest].regs->reg_flags & RegVRex) != 0)
7242 if ((i.op[source].regs->reg_flags & RegRex) != 0)
7244 if ((i.op[source].regs->reg_flags & RegVRex) != 0)
7247 if (flag_code != CODE_64BIT && (i.rex & REX_R))
7249 if (!i.types[i.tm.operand_types[0].bitfield.regmem].bitfield.control)
7252 add_prefix (LOCK_PREFIX_OPCODE);
7256 { /* If it's not 2 reg operands... */
7261 unsigned int fake_zero_displacement = 0;
7264 for (op = 0; op < i.operands; op++)
7265 if (operand_type_check (i.types[op], anymem))
7267 gas_assert (op < i.operands);
7269 if (i.tm.opcode_modifier.vecsib)
7271 if (i.index_reg->reg_num == RegIZ)
7274 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
7277 i.sib.base = NO_BASE_REGISTER;
7278 i.sib.scale = i.log2_scale_factor;
7279 i.types[op].bitfield.disp8 = 0;
7280 i.types[op].bitfield.disp16 = 0;
7281 i.types[op].bitfield.disp64 = 0;
7282 if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX])
7284 /* Must be 32 bit */
7285 i.types[op].bitfield.disp32 = 1;
7286 i.types[op].bitfield.disp32s = 0;
7290 i.types[op].bitfield.disp32 = 0;
7291 i.types[op].bitfield.disp32s = 1;
7294 i.sib.index = i.index_reg->reg_num;
7295 if ((i.index_reg->reg_flags & RegRex) != 0)
7297 if ((i.index_reg->reg_flags & RegVRex) != 0)
7303 if (i.base_reg == 0)
7306 if (!i.disp_operands)
7307 fake_zero_displacement = 1;
7308 if (i.index_reg == 0)
7310 i386_operand_type newdisp;
7312 gas_assert (!i.tm.opcode_modifier.vecsib);
7313 /* Operand is just <disp> */
7314 if (flag_code == CODE_64BIT)
7316 /* 64bit mode overwrites the 32bit absolute
7317 addressing by RIP relative addressing and
7318 absolute addressing is encoded by one of the
7319 redundant SIB forms. */
7320 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
7321 i.sib.base = NO_BASE_REGISTER;
7322 i.sib.index = NO_INDEX_REGISTER;
7323 newdisp = (!i.prefix[ADDR_PREFIX] ? disp32s : disp32);
7325 else if ((flag_code == CODE_16BIT)
7326 ^ (i.prefix[ADDR_PREFIX] != 0))
7328 i.rm.regmem = NO_BASE_REGISTER_16;
7333 i.rm.regmem = NO_BASE_REGISTER;
7336 i.types[op] = operand_type_and_not (i.types[op], anydisp);
7337 i.types[op] = operand_type_or (i.types[op], newdisp);
7339 else if (!i.tm.opcode_modifier.vecsib)
7341 /* !i.base_reg && i.index_reg */
7342 if (i.index_reg->reg_num == RegIZ)
7343 i.sib.index = NO_INDEX_REGISTER;
7345 i.sib.index = i.index_reg->reg_num;
7346 i.sib.base = NO_BASE_REGISTER;
7347 i.sib.scale = i.log2_scale_factor;
7348 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
7349 i.types[op].bitfield.disp8 = 0;
7350 i.types[op].bitfield.disp16 = 0;
7351 i.types[op].bitfield.disp64 = 0;
7352 if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX])
7354 /* Must be 32 bit */
7355 i.types[op].bitfield.disp32 = 1;
7356 i.types[op].bitfield.disp32s = 0;
7360 i.types[op].bitfield.disp32 = 0;
7361 i.types[op].bitfield.disp32s = 1;
7363 if ((i.index_reg->reg_flags & RegRex) != 0)
7367 /* RIP addressing for 64bit mode. */
7368 else if (i.base_reg->reg_num == RegIP)
7370 gas_assert (!i.tm.opcode_modifier.vecsib);
7371 i.rm.regmem = NO_BASE_REGISTER;
7372 i.types[op].bitfield.disp8 = 0;
7373 i.types[op].bitfield.disp16 = 0;
7374 i.types[op].bitfield.disp32 = 0;
7375 i.types[op].bitfield.disp32s = 1;
7376 i.types[op].bitfield.disp64 = 0;
7377 i.flags[op] |= Operand_PCrel;
7378 if (! i.disp_operands)
7379 fake_zero_displacement = 1;
7381 else if (i.base_reg->reg_type.bitfield.word)
7383 gas_assert (!i.tm.opcode_modifier.vecsib);
7384 switch (i.base_reg->reg_num)
7387 if (i.index_reg == 0)
7389 else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */
7390 i.rm.regmem = i.index_reg->reg_num - 6;
7394 if (i.index_reg == 0)
7397 if (operand_type_check (i.types[op], disp) == 0)
7399 /* fake (%bp) into 0(%bp) */
7400 i.types[op].bitfield.disp8 = 1;
7401 fake_zero_displacement = 1;
7404 else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */
7405 i.rm.regmem = i.index_reg->reg_num - 6 + 2;
7407 default: /* (%si) -> 4 or (%di) -> 5 */
7408 i.rm.regmem = i.base_reg->reg_num - 6 + 4;
7410 i.rm.mode = mode_from_disp_size (i.types[op]);
7412 else /* i.base_reg and 32/64 bit mode */
7414 if (flag_code == CODE_64BIT
7415 && operand_type_check (i.types[op], disp))
7417 i.types[op].bitfield.disp16 = 0;
7418 i.types[op].bitfield.disp64 = 0;
7419 if (i.prefix[ADDR_PREFIX] == 0)
7421 i.types[op].bitfield.disp32 = 0;
7422 i.types[op].bitfield.disp32s = 1;
7426 i.types[op].bitfield.disp32 = 1;
7427 i.types[op].bitfield.disp32s = 0;
7431 if (!i.tm.opcode_modifier.vecsib)
7432 i.rm.regmem = i.base_reg->reg_num;
7433 if ((i.base_reg->reg_flags & RegRex) != 0)
7435 i.sib.base = i.base_reg->reg_num;
7436 /* x86-64 ignores REX prefix bit here to avoid decoder
7438 if (!(i.base_reg->reg_flags & RegRex)
7439 && (i.base_reg->reg_num == EBP_REG_NUM
7440 || i.base_reg->reg_num == ESP_REG_NUM))
7442 if (i.base_reg->reg_num == 5 && i.disp_operands == 0)
7444 fake_zero_displacement = 1;
7445 i.types[op].bitfield.disp8 = 1;
7447 i.sib.scale = i.log2_scale_factor;
7448 if (i.index_reg == 0)
7450 gas_assert (!i.tm.opcode_modifier.vecsib);
7451 /* <disp>(%esp) becomes two byte modrm with no index
7452 register. We've already stored the code for esp
7453 in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING.
7454 Any base register besides %esp will not use the
7455 extra modrm byte. */
7456 i.sib.index = NO_INDEX_REGISTER;
7458 else if (!i.tm.opcode_modifier.vecsib)
7460 if (i.index_reg->reg_num == RegIZ)
7461 i.sib.index = NO_INDEX_REGISTER;
7463 i.sib.index = i.index_reg->reg_num;
7464 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
7465 if ((i.index_reg->reg_flags & RegRex) != 0)
7470 && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
7471 || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL))
7475 if (!fake_zero_displacement
7479 fake_zero_displacement = 1;
7480 if (i.disp_encoding == disp_encoding_8bit)
7481 i.types[op].bitfield.disp8 = 1;
7483 i.types[op].bitfield.disp32 = 1;
7485 i.rm.mode = mode_from_disp_size (i.types[op]);
7489 if (fake_zero_displacement)
7491 /* Fakes a zero displacement assuming that i.types[op]
7492 holds the correct displacement size. */
7495 gas_assert (i.op[op].disps == 0);
7496 exp = &disp_expressions[i.disp_operands++];
7497 i.op[op].disps = exp;
7498 exp->X_op = O_constant;
7499 exp->X_add_number = 0;
7500 exp->X_add_symbol = (symbolS *) 0;
7501 exp->X_op_symbol = (symbolS *) 0;
7509 if (i.tm.opcode_modifier.vexsources == XOP2SOURCES)
7511 if (operand_type_check (i.types[0], imm))
7512 i.vex.register_specifier = NULL;
7515 /* VEX.vvvv encodes one of the sources when the first
7516 operand is not an immediate. */
7517 if (i.tm.opcode_modifier.vexw == VEXW0)
7518 i.vex.register_specifier = i.op[0].regs;
7520 i.vex.register_specifier = i.op[1].regs;
7523 /* Destination is a XMM register encoded in the ModRM.reg
7525 i.rm.reg = i.op[2].regs->reg_num;
7526 if ((i.op[2].regs->reg_flags & RegRex) != 0)
7529 /* ModRM.rm and VEX.B encodes the other source. */
7530 if (!i.mem_operands)
7534 if (i.tm.opcode_modifier.vexw == VEXW0)
7535 i.rm.regmem = i.op[1].regs->reg_num;
7537 i.rm.regmem = i.op[0].regs->reg_num;
7539 if ((i.op[1].regs->reg_flags & RegRex) != 0)
7543 else if (i.tm.opcode_modifier.vexvvvv == VEXLWP)
7545 i.vex.register_specifier = i.op[2].regs;
7546 if (!i.mem_operands)
7549 i.rm.regmem = i.op[1].regs->reg_num;
7550 if ((i.op[1].regs->reg_flags & RegRex) != 0)
7554 /* Fill in i.rm.reg or i.rm.regmem field with register operand
7555 (if any) based on i.tm.extension_opcode. Again, we must be
7556 careful to make sure that segment/control/debug/test/MMX
7557 registers are coded into the i.rm.reg field. */
7558 else if (i.reg_operands)
7561 unsigned int vex_reg = ~0;
7563 for (op = 0; op < i.operands; op++)
7565 if (i.types[op].bitfield.reg
7566 || i.types[op].bitfield.regbnd
7567 || i.types[op].bitfield.regmask
7568 || i.types[op].bitfield.sreg2
7569 || i.types[op].bitfield.sreg3
7570 || i.types[op].bitfield.control
7571 || i.types[op].bitfield.debug
7572 || i.types[op].bitfield.test)
7574 if (i.types[op].bitfield.regsimd)
7576 if (i.types[op].bitfield.zmmword)
7577 i.has_regzmm = TRUE;
7578 else if (i.types[op].bitfield.ymmword)
7579 i.has_regymm = TRUE;
7581 i.has_regxmm = TRUE;
7584 if (i.types[op].bitfield.regmmx)
7586 i.has_regmmx = TRUE;
7593 else if (i.tm.opcode_modifier.vexvvvv == VEXXDS)
7595 /* For instructions with VexNDS, the register-only
7596 source operand is encoded in VEX prefix. */
7597 gas_assert (mem != (unsigned int) ~0);
7602 gas_assert (op < i.operands);
7606 /* Check register-only source operand when two source
7607 operands are swapped. */
7608 if (!i.tm.operand_types[op].bitfield.baseindex
7609 && i.tm.operand_types[op + 1].bitfield.baseindex)
7613 gas_assert (mem == (vex_reg + 1)
7614 && op < i.operands);
7619 gas_assert (vex_reg < i.operands);
7623 else if (i.tm.opcode_modifier.vexvvvv == VEXNDD)
7625 /* For instructions with VexNDD, the register destination
7626 is encoded in VEX prefix. */
7627 if (i.mem_operands == 0)
7629 /* There is no memory operand. */
7630 gas_assert ((op + 2) == i.operands);
7635 /* There are only 2 non-immediate operands. */
7636 gas_assert (op < i.imm_operands + 2
7637 && i.operands == i.imm_operands + 2);
7638 vex_reg = i.imm_operands + 1;
7642 gas_assert (op < i.operands);
7644 if (vex_reg != (unsigned int) ~0)
7646 i386_operand_type *type = &i.tm.operand_types[vex_reg];
7648 if ((!type->bitfield.reg
7649 || (!type->bitfield.dword && !type->bitfield.qword))
7650 && !type->bitfield.regsimd
7651 && !operand_type_equal (type, ®mask))
7654 i.vex.register_specifier = i.op[vex_reg].regs;
7657 /* Don't set OP operand twice. */
7660 /* If there is an extension opcode to put here, the
7661 register number must be put into the regmem field. */
7662 if (i.tm.extension_opcode != None)
7664 i.rm.regmem = i.op[op].regs->reg_num;
7665 if ((i.op[op].regs->reg_flags & RegRex) != 0)
7667 if ((i.op[op].regs->reg_flags & RegVRex) != 0)
7672 i.rm.reg = i.op[op].regs->reg_num;
7673 if ((i.op[op].regs->reg_flags & RegRex) != 0)
7675 if ((i.op[op].regs->reg_flags & RegVRex) != 0)
7680 /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we
7681 must set it to 3 to indicate this is a register operand
7682 in the regmem field. */
7683 if (!i.mem_operands)
7687 /* Fill in i.rm.reg field with extension opcode (if any). */
7688 if (i.tm.extension_opcode != None)
7689 i.rm.reg = i.tm.extension_opcode;
7695 output_branch (void)
7701 relax_substateT subtype;
7705 code16 = flag_code == CODE_16BIT ? CODE16 : 0;
7706 size = i.disp_encoding == disp_encoding_32bit ? BIG : SMALL;
7709 if (i.prefix[DATA_PREFIX] != 0)
7715 /* Pentium4 branch hints. */
7716 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
7717 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
7722 if (i.prefix[REX_PREFIX] != 0)
7728 /* BND prefixed jump. */
7729 if (i.prefix[BND_PREFIX] != 0)
7731 FRAG_APPEND_1_CHAR (i.prefix[BND_PREFIX]);
7735 if (i.prefixes != 0 && !intel_syntax)
7736 as_warn (_("skipping prefixes on this instruction"));
7738 /* It's always a symbol; End frag & setup for relax.
7739 Make sure there is enough room in this frag for the largest
7740 instruction we may generate in md_convert_frag. This is 2
7741 bytes for the opcode and room for the prefix and largest
7743 frag_grow (prefix + 2 + 4);
7744 /* Prefix and 1 opcode byte go in fr_fix. */
7745 p = frag_more (prefix + 1);
7746 if (i.prefix[DATA_PREFIX] != 0)
7747 *p++ = DATA_PREFIX_OPCODE;
7748 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE
7749 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE)
7750 *p++ = i.prefix[SEG_PREFIX];
7751 if (i.prefix[REX_PREFIX] != 0)
7752 *p++ = i.prefix[REX_PREFIX];
7753 *p = i.tm.base_opcode;
7755 if ((unsigned char) *p == JUMP_PC_RELATIVE)
7756 subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size);
7757 else if (cpu_arch_flags.bitfield.cpui386)
7758 subtype = ENCODE_RELAX_STATE (COND_JUMP, size);
7760 subtype = ENCODE_RELAX_STATE (COND_JUMP86, size);
7763 sym = i.op[0].disps->X_add_symbol;
7764 off = i.op[0].disps->X_add_number;
7766 if (i.op[0].disps->X_op != O_constant
7767 && i.op[0].disps->X_op != O_symbol)
7769 /* Handle complex expressions. */
7770 sym = make_expr_symbol (i.op[0].disps);
7774 /* 1 possible extra opcode + 4 byte displacement go in var part.
7775 Pass reloc in fr_var. */
7776 frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
7779 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
7780 /* Return TRUE iff PLT32 relocation should be used for branching to
7784 need_plt32_p (symbolS *s)
7786 /* PLT32 relocation is ELF only. */
7790 /* Since there is no need to prepare for PLT branch on x86-64, we
7791 can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can
7792 be used as a marker for 32-bit PC-relative branches. */
7796 /* Weak or undefined symbol need PLT32 relocation. */
7797 if (S_IS_WEAK (s) || !S_IS_DEFINED (s))
7800 /* Non-global symbol doesn't need PLT32 relocation. */
7801 if (! S_IS_EXTERNAL (s))
7804 /* Other global symbols need PLT32 relocation. NB: Symbol with
7805 non-default visibilities are treated as normal global symbol
7806 so that PLT32 relocation can be used as a marker for 32-bit
7807 PC-relative branches. It is useful for linker relaxation. */
7818 bfd_reloc_code_real_type jump_reloc = i.reloc[0];
7820 if (i.tm.opcode_modifier.jumpbyte)
7822 /* This is a loop or jecxz type instruction. */
7824 if (i.prefix[ADDR_PREFIX] != 0)
7826 FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE);
7829 /* Pentium4 branch hints. */
7830 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
7831 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
7833 FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]);
7842 if (flag_code == CODE_16BIT)
7845 if (i.prefix[DATA_PREFIX] != 0)
7847 FRAG_APPEND_1_CHAR (DATA_PREFIX_OPCODE);
7857 if (i.prefix[REX_PREFIX] != 0)
7859 FRAG_APPEND_1_CHAR (i.prefix[REX_PREFIX]);
7863 /* BND prefixed jump. */
7864 if (i.prefix[BND_PREFIX] != 0)
7866 FRAG_APPEND_1_CHAR (i.prefix[BND_PREFIX]);
7870 if (i.prefixes != 0 && !intel_syntax)
7871 as_warn (_("skipping prefixes on this instruction"));
7873 p = frag_more (i.tm.opcode_length + size);
7874 switch (i.tm.opcode_length)
7877 *p++ = i.tm.base_opcode >> 8;
7880 *p++ = i.tm.base_opcode;
7886 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
7888 && jump_reloc == NO_RELOC
7889 && need_plt32_p (i.op[0].disps->X_add_symbol))
7890 jump_reloc = BFD_RELOC_X86_64_PLT32;
7893 jump_reloc = reloc (size, 1, 1, jump_reloc);
7895 fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
7896 i.op[0].disps, 1, jump_reloc);
7898 /* All jumps handled here are signed, but don't use a signed limit
7899 check for 32 and 16 bit jumps as we want to allow wrap around at
7900 4G and 64k respectively. */
7902 fixP->fx_signed = 1;
7906 output_interseg_jump (void)
7914 if (flag_code == CODE_16BIT)
7918 if (i.prefix[DATA_PREFIX] != 0)
7924 if (i.prefix[REX_PREFIX] != 0)
7934 if (i.prefixes != 0 && !intel_syntax)
7935 as_warn (_("skipping prefixes on this instruction"));
7937 /* 1 opcode; 2 segment; offset */
7938 p = frag_more (prefix + 1 + 2 + size);
7940 if (i.prefix[DATA_PREFIX] != 0)
7941 *p++ = DATA_PREFIX_OPCODE;
7943 if (i.prefix[REX_PREFIX] != 0)
7944 *p++ = i.prefix[REX_PREFIX];
7946 *p++ = i.tm.base_opcode;
7947 if (i.op[1].imms->X_op == O_constant)
7949 offsetT n = i.op[1].imms->X_add_number;
7952 && !fits_in_unsigned_word (n)
7953 && !fits_in_signed_word (n))
7955 as_bad (_("16-bit jump out of range"));
7958 md_number_to_chars (p, n, size);
7961 fix_new_exp (frag_now, p - frag_now->fr_literal, size,
7962 i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1]));
7963 if (i.op[0].imms->X_op != O_constant)
7964 as_bad (_("can't handle non absolute segment in `%s'"),
7966 md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2);
7969 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
7974 asection *seg = now_seg;
7975 subsegT subseg = now_subseg;
7977 unsigned int alignment, align_size_1;
7978 unsigned int isa_1_descsz, feature_2_descsz, descsz;
7979 unsigned int isa_1_descsz_raw, feature_2_descsz_raw;
7980 unsigned int padding;
7982 if (!IS_ELF || !x86_used_note)
7985 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X86;
7987 /* The .note.gnu.property section layout:
7989 Field Length Contents
7992 n_descsz 4 The note descriptor size
7993 n_type 4 NT_GNU_PROPERTY_TYPE_0
7995 n_desc n_descsz The program property array
7999 /* Create the .note.gnu.property section. */
8000 sec = subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME, 0);
8001 bfd_set_section_flags (stdoutput, sec,
8008 if (get_elf_backend_data (stdoutput)->s->elfclass == ELFCLASS64)
8019 bfd_set_section_alignment (stdoutput, sec, alignment);
8020 elf_section_type (sec) = SHT_NOTE;
8022 /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size
8024 isa_1_descsz_raw = 4 + 4 + 4;
8025 /* Align GNU_PROPERTY_X86_ISA_1_USED. */
8026 isa_1_descsz = (isa_1_descsz_raw + align_size_1) & ~align_size_1;
8028 feature_2_descsz_raw = isa_1_descsz;
8029 /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size
8031 feature_2_descsz_raw += 4 + 4 + 4;
8032 /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */
8033 feature_2_descsz = ((feature_2_descsz_raw + align_size_1)
8036 descsz = feature_2_descsz;
8037 /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */
8038 p = frag_more (4 + 4 + 4 + 4 + descsz);
8040 /* Write n_namsz. */
8041 md_number_to_chars (p, (valueT) 4, 4);
8043 /* Write n_descsz. */
8044 md_number_to_chars (p + 4, (valueT) descsz, 4);
8047 md_number_to_chars (p + 4 * 2, (valueT) NT_GNU_PROPERTY_TYPE_0, 4);
8050 memcpy (p + 4 * 3, "GNU", 4);
8052 /* Write 4-byte type. */
8053 md_number_to_chars (p + 4 * 4,
8054 (valueT) GNU_PROPERTY_X86_ISA_1_USED, 4);
8056 /* Write 4-byte data size. */
8057 md_number_to_chars (p + 4 * 5, (valueT) 4, 4);
8059 /* Write 4-byte data. */
8060 md_number_to_chars (p + 4 * 6, (valueT) x86_isa_1_used, 4);
8062 /* Zero out paddings. */
8063 padding = isa_1_descsz - isa_1_descsz_raw;
8065 memset (p + 4 * 7, 0, padding);
8067 /* Write 4-byte type. */
8068 md_number_to_chars (p + isa_1_descsz + 4 * 4,
8069 (valueT) GNU_PROPERTY_X86_FEATURE_2_USED, 4);
8071 /* Write 4-byte data size. */
8072 md_number_to_chars (p + isa_1_descsz + 4 * 5, (valueT) 4, 4);
8074 /* Write 4-byte data. */
8075 md_number_to_chars (p + isa_1_descsz + 4 * 6,
8076 (valueT) x86_feature_2_used, 4);
8078 /* Zero out paddings. */
8079 padding = feature_2_descsz - feature_2_descsz_raw;
8081 memset (p + isa_1_descsz + 4 * 7, 0, padding);
8083 /* We probably can't restore the current segment, for there likely
8086 subseg_set (seg, subseg);
8093 fragS *insn_start_frag;
8094 offsetT insn_start_off;
8096 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8097 if (IS_ELF && x86_used_note)
8099 if (i.tm.cpu_flags.bitfield.cpucmov)
8100 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_CMOV;
8101 if (i.tm.cpu_flags.bitfield.cpusse)
8102 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE;
8103 if (i.tm.cpu_flags.bitfield.cpusse2)
8104 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE2;
8105 if (i.tm.cpu_flags.bitfield.cpusse3)
8106 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE3;
8107 if (i.tm.cpu_flags.bitfield.cpussse3)
8108 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSSE3;
8109 if (i.tm.cpu_flags.bitfield.cpusse4_1)
8110 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_1;
8111 if (i.tm.cpu_flags.bitfield.cpusse4_2)
8112 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_2;
8113 if (i.tm.cpu_flags.bitfield.cpuavx)
8114 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX;
8115 if (i.tm.cpu_flags.bitfield.cpuavx2)
8116 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX2;
8117 if (i.tm.cpu_flags.bitfield.cpufma)
8118 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_FMA;
8119 if (i.tm.cpu_flags.bitfield.cpuavx512f)
8120 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512F;
8121 if (i.tm.cpu_flags.bitfield.cpuavx512cd)
8122 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512CD;
8123 if (i.tm.cpu_flags.bitfield.cpuavx512er)
8124 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512ER;
8125 if (i.tm.cpu_flags.bitfield.cpuavx512pf)
8126 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512PF;
8127 if (i.tm.cpu_flags.bitfield.cpuavx512vl)
8128 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512VL;
8129 if (i.tm.cpu_flags.bitfield.cpuavx512dq)
8130 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512DQ;
8131 if (i.tm.cpu_flags.bitfield.cpuavx512bw)
8132 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512BW;
8133 if (i.tm.cpu_flags.bitfield.cpuavx512_4fmaps)
8134 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS;
8135 if (i.tm.cpu_flags.bitfield.cpuavx512_4vnniw)
8136 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW;
8137 if (i.tm.cpu_flags.bitfield.cpuavx512_bitalg)
8138 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BITALG;
8139 if (i.tm.cpu_flags.bitfield.cpuavx512ifma)
8140 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_IFMA;
8141 if (i.tm.cpu_flags.bitfield.cpuavx512vbmi)
8142 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI;
8143 if (i.tm.cpu_flags.bitfield.cpuavx512_vbmi2)
8144 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2;
8145 if (i.tm.cpu_flags.bitfield.cpuavx512_vnni)
8146 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VNNI;
8147 if (i.tm.cpu_flags.bitfield.cpuavx512_bf16)
8148 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BF16;
8150 if (i.tm.cpu_flags.bitfield.cpu8087
8151 || i.tm.cpu_flags.bitfield.cpu287
8152 || i.tm.cpu_flags.bitfield.cpu387
8153 || i.tm.cpu_flags.bitfield.cpu687
8154 || i.tm.cpu_flags.bitfield.cpufisttp)
8155 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87;
8156 /* Don't set GNU_PROPERTY_X86_FEATURE_2_MMX for prefetchtXXX nor
8157 Xfence instructions. */
8158 if (i.tm.base_opcode != 0xf18
8159 && i.tm.base_opcode != 0xf0d
8160 && i.tm.base_opcode != 0xfae
8162 || i.tm.cpu_flags.bitfield.cpummx
8163 || i.tm.cpu_flags.bitfield.cpua3dnow
8164 || i.tm.cpu_flags.bitfield.cpua3dnowa))
8165 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX;
8167 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM;
8169 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_YMM;
8171 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_ZMM;
8172 if (i.tm.cpu_flags.bitfield.cpufxsr)
8173 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_FXSR;
8174 if (i.tm.cpu_flags.bitfield.cpuxsave)
8175 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVE;
8176 if (i.tm.cpu_flags.bitfield.cpuxsaveopt)
8177 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT;
8178 if (i.tm.cpu_flags.bitfield.cpuxsavec)
8179 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEC;
8183 /* Tie dwarf2 debug info to the address at the start of the insn.
8184 We can't do this after the insn has been output as the current
8185 frag may have been closed off. eg. by frag_var. */
8186 dwarf2_emit_insn (0);
8188 insn_start_frag = frag_now;
8189 insn_start_off = frag_now_fix ();
8192 if (i.tm.opcode_modifier.jump)
8194 else if (i.tm.opcode_modifier.jumpbyte
8195 || i.tm.opcode_modifier.jumpdword)
8197 else if (i.tm.opcode_modifier.jumpintersegment)
8198 output_interseg_jump ();
8201 /* Output normal instructions here. */
8205 unsigned int prefix;
8208 && i.tm.base_opcode == 0xfae
8210 && i.imm_operands == 1
8211 && (i.op[0].imms->X_add_number == 0xe8
8212 || i.op[0].imms->X_add_number == 0xf0
8213 || i.op[0].imms->X_add_number == 0xf8))
8215 /* Encode lfence, mfence, and sfence as
8216 f0 83 04 24 00 lock addl $0x0, (%{re}sp). */
8217 offsetT val = 0x240483f0ULL;
8219 md_number_to_chars (p, val, 5);
8223 /* Some processors fail on LOCK prefix. This options makes
8224 assembler ignore LOCK prefix and serves as a workaround. */
8225 if (omit_lock_prefix)
8227 if (i.tm.base_opcode == LOCK_PREFIX_OPCODE)
8229 i.prefix[LOCK_PREFIX] = 0;
8232 /* Since the VEX/EVEX prefix contains the implicit prefix, we
8233 don't need the explicit prefix. */
8234 if (!i.tm.opcode_modifier.vex && !i.tm.opcode_modifier.evex)
8236 switch (i.tm.opcode_length)
8239 if (i.tm.base_opcode & 0xff000000)
8241 prefix = (i.tm.base_opcode >> 24) & 0xff;
8242 add_prefix (prefix);
8246 if ((i.tm.base_opcode & 0xff0000) != 0)
8248 prefix = (i.tm.base_opcode >> 16) & 0xff;
8249 if (!i.tm.cpu_flags.bitfield.cpupadlock
8250 || prefix != REPE_PREFIX_OPCODE
8251 || (i.prefix[REP_PREFIX] != REPE_PREFIX_OPCODE))
8252 add_prefix (prefix);
8258 /* Check for pseudo prefixes. */
8259 as_bad_where (insn_start_frag->fr_file,
8260 insn_start_frag->fr_line,
8261 _("pseudo prefix without instruction"));
8267 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
8268 /* For x32, add a dummy REX_OPCODE prefix for mov/add with
8269 R_X86_64_GOTTPOFF relocation so that linker can safely
8270 perform IE->LE optimization. */
8271 if (x86_elf_abi == X86_64_X32_ABI
8273 && i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF
8274 && i.prefix[REX_PREFIX] == 0)
8275 add_prefix (REX_OPCODE);
8278 /* The prefix bytes. */
8279 for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++)
8281 FRAG_APPEND_1_CHAR (*q);
8285 for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++)
8290 /* REX byte is encoded in VEX prefix. */
8294 FRAG_APPEND_1_CHAR (*q);
8297 /* There should be no other prefixes for instructions
8302 /* For EVEX instructions i.vrex should become 0 after
8303 build_evex_prefix. For VEX instructions upper 16 registers
8304 aren't available, so VREX should be 0. */
8307 /* Now the VEX prefix. */
8308 p = frag_more (i.vex.length);
8309 for (j = 0; j < i.vex.length; j++)
8310 p[j] = i.vex.bytes[j];
8313 /* Now the opcode; be careful about word order here! */
8314 if (i.tm.opcode_length == 1)
8316 FRAG_APPEND_1_CHAR (i.tm.base_opcode);
8320 switch (i.tm.opcode_length)
8324 *p++ = (i.tm.base_opcode >> 24) & 0xff;
8325 *p++ = (i.tm.base_opcode >> 16) & 0xff;
8329 *p++ = (i.tm.base_opcode >> 16) & 0xff;
8339 /* Put out high byte first: can't use md_number_to_chars! */
8340 *p++ = (i.tm.base_opcode >> 8) & 0xff;
8341 *p = i.tm.base_opcode & 0xff;
8344 /* Now the modrm byte and sib byte (if present). */
8345 if (i.tm.opcode_modifier.modrm)
8347 FRAG_APPEND_1_CHAR ((i.rm.regmem << 0
8350 /* If i.rm.regmem == ESP (4)
8351 && i.rm.mode != (Register mode)
8353 ==> need second modrm byte. */
8354 if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING
8356 && !(i.base_reg && i.base_reg->reg_type.bitfield.word))
8357 FRAG_APPEND_1_CHAR ((i.sib.base << 0
8359 | i.sib.scale << 6));
8362 if (i.disp_operands)
8363 output_disp (insn_start_frag, insn_start_off);
8366 output_imm (insn_start_frag, insn_start_off);
8372 pi ("" /*line*/, &i);
8374 #endif /* DEBUG386 */
8377 /* Return the size of the displacement operand N. */
8380 disp_size (unsigned int n)
8384 if (i.types[n].bitfield.disp64)
8386 else if (i.types[n].bitfield.disp8)
8388 else if (i.types[n].bitfield.disp16)
8393 /* Return the size of the immediate operand N. */
8396 imm_size (unsigned int n)
8399 if (i.types[n].bitfield.imm64)
8401 else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s)
8403 else if (i.types[n].bitfield.imm16)
8409 output_disp (fragS *insn_start_frag, offsetT insn_start_off)
8414 for (n = 0; n < i.operands; n++)
8416 if (operand_type_check (i.types[n], disp))
8418 if (i.op[n].disps->X_op == O_constant)
8420 int size = disp_size (n);
8421 offsetT val = i.op[n].disps->X_add_number;
8423 val = offset_in_range (val >> (size == 1 ? i.memshift : 0),
8425 p = frag_more (size);
8426 md_number_to_chars (p, val, size);
8430 enum bfd_reloc_code_real reloc_type;
8431 int size = disp_size (n);
8432 int sign = i.types[n].bitfield.disp32s;
8433 int pcrel = (i.flags[n] & Operand_PCrel) != 0;
8436 /* We can't have 8 bit displacement here. */
8437 gas_assert (!i.types[n].bitfield.disp8);
8439 /* The PC relative address is computed relative
8440 to the instruction boundary, so in case immediate
8441 fields follows, we need to adjust the value. */
8442 if (pcrel && i.imm_operands)
8447 for (n1 = 0; n1 < i.operands; n1++)
8448 if (operand_type_check (i.types[n1], imm))
8450 /* Only one immediate is allowed for PC
8451 relative address. */
8452 gas_assert (sz == 0);
8454 i.op[n].disps->X_add_number -= sz;
8456 /* We should find the immediate. */
8457 gas_assert (sz != 0);
8460 p = frag_more (size);
8461 reloc_type = reloc (size, pcrel, sign, i.reloc[n]);
8463 && GOT_symbol == i.op[n].disps->X_add_symbol
8464 && (((reloc_type == BFD_RELOC_32
8465 || reloc_type == BFD_RELOC_X86_64_32S
8466 || (reloc_type == BFD_RELOC_64
8468 && (i.op[n].disps->X_op == O_symbol
8469 || (i.op[n].disps->X_op == O_add
8470 && ((symbol_get_value_expression
8471 (i.op[n].disps->X_op_symbol)->X_op)
8473 || reloc_type == BFD_RELOC_32_PCREL))
8477 if (insn_start_frag == frag_now)
8478 add = (p - frag_now->fr_literal) - insn_start_off;
8483 add = insn_start_frag->fr_fix - insn_start_off;
8484 for (fr = insn_start_frag->fr_next;
8485 fr && fr != frag_now; fr = fr->fr_next)
8487 add += p - frag_now->fr_literal;
8492 reloc_type = BFD_RELOC_386_GOTPC;
8493 i.op[n].imms->X_add_number += add;
8495 else if (reloc_type == BFD_RELOC_64)
8496 reloc_type = BFD_RELOC_X86_64_GOTPC64;
8498 /* Don't do the adjustment for x86-64, as there
8499 the pcrel addressing is relative to the _next_
8500 insn, and that is taken care of in other code. */
8501 reloc_type = BFD_RELOC_X86_64_GOTPC32;
8503 fixP = fix_new_exp (frag_now, p - frag_now->fr_literal,
8504 size, i.op[n].disps, pcrel,
8506 /* Check for "call/jmp *mem", "mov mem, %reg",
8507 "test %reg, mem" and "binop mem, %reg" where binop
8508 is one of adc, add, and, cmp, or, sbb, sub, xor
8509 instructions without data prefix. Always generate
8510 R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */
8511 if (i.prefix[DATA_PREFIX] == 0
8512 && (generate_relax_relocations
8515 && i.rm.regmem == 5))
8517 || (i.rm.mode == 0 && i.rm.regmem == 5))
8518 && ((i.operands == 1
8519 && i.tm.base_opcode == 0xff
8520 && (i.rm.reg == 2 || i.rm.reg == 4))
8522 && (i.tm.base_opcode == 0x8b
8523 || i.tm.base_opcode == 0x85
8524 || (i.tm.base_opcode & 0xc7) == 0x03))))
8528 fixP->fx_tcbit = i.rex != 0;
8530 && (i.base_reg->reg_num == RegIP))
8531 fixP->fx_tcbit2 = 1;
8534 fixP->fx_tcbit2 = 1;
8542 output_imm (fragS *insn_start_frag, offsetT insn_start_off)
8547 for (n = 0; n < i.operands; n++)
8549 /* Skip SAE/RC Imm operand in EVEX. They are already handled. */
8550 if (i.rounding && (int) n == i.rounding->operand)
8553 if (operand_type_check (i.types[n], imm))
8555 if (i.op[n].imms->X_op == O_constant)
8557 int size = imm_size (n);
8560 val = offset_in_range (i.op[n].imms->X_add_number,
8562 p = frag_more (size);
8563 md_number_to_chars (p, val, size);
8567 /* Not absolute_section.
8568 Need a 32-bit fixup (don't support 8bit
8569 non-absolute imms). Try to support other
8571 enum bfd_reloc_code_real reloc_type;
8572 int size = imm_size (n);
8575 if (i.types[n].bitfield.imm32s
8576 && (i.suffix == QWORD_MNEM_SUFFIX
8577 || (!i.suffix && i.tm.opcode_modifier.no_lsuf)))
8582 p = frag_more (size);
8583 reloc_type = reloc (size, 0, sign, i.reloc[n]);
8585 /* This is tough to explain. We end up with this one if we
8586 * have operands that look like
8587 * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to
8588 * obtain the absolute address of the GOT, and it is strongly
8589 * preferable from a performance point of view to avoid using
8590 * a runtime relocation for this. The actual sequence of
8591 * instructions often look something like:
8596 * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx
8598 * The call and pop essentially return the absolute address
8599 * of the label .L66 and store it in %ebx. The linker itself
8600 * will ultimately change the first operand of the addl so
8601 * that %ebx points to the GOT, but to keep things simple, the
8602 * .o file must have this operand set so that it generates not
8603 * the absolute address of .L66, but the absolute address of
8604 * itself. This allows the linker itself simply treat a GOTPC
8605 * relocation as asking for a pcrel offset to the GOT to be
8606 * added in, and the addend of the relocation is stored in the
8607 * operand field for the instruction itself.
8609 * Our job here is to fix the operand so that it would add
8610 * the correct offset so that %ebx would point to itself. The
8611 * thing that is tricky is that .-.L66 will point to the
8612 * beginning of the instruction, so we need to further modify
8613 * the operand so that it will point to itself. There are
8614 * other cases where you have something like:
8616 * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66]
8618 * and here no correction would be required. Internally in
8619 * the assembler we treat operands of this form as not being
8620 * pcrel since the '.' is explicitly mentioned, and I wonder
8621 * whether it would simplify matters to do it this way. Who
8622 * knows. In earlier versions of the PIC patches, the
8623 * pcrel_adjust field was used to store the correction, but
8624 * since the expression is not pcrel, I felt it would be
8625 * confusing to do it this way. */
8627 if ((reloc_type == BFD_RELOC_32
8628 || reloc_type == BFD_RELOC_X86_64_32S
8629 || reloc_type == BFD_RELOC_64)
8631 && GOT_symbol == i.op[n].imms->X_add_symbol
8632 && (i.op[n].imms->X_op == O_symbol
8633 || (i.op[n].imms->X_op == O_add
8634 && ((symbol_get_value_expression
8635 (i.op[n].imms->X_op_symbol)->X_op)
8640 if (insn_start_frag == frag_now)
8641 add = (p - frag_now->fr_literal) - insn_start_off;
8646 add = insn_start_frag->fr_fix - insn_start_off;
8647 for (fr = insn_start_frag->fr_next;
8648 fr && fr != frag_now; fr = fr->fr_next)
8650 add += p - frag_now->fr_literal;
8654 reloc_type = BFD_RELOC_386_GOTPC;
8656 reloc_type = BFD_RELOC_X86_64_GOTPC32;
8658 reloc_type = BFD_RELOC_X86_64_GOTPC64;
8659 i.op[n].imms->X_add_number += add;
8661 fix_new_exp (frag_now, p - frag_now->fr_literal, size,
8662 i.op[n].imms, 0, reloc_type);
8668 /* x86_cons_fix_new is called via the expression parsing code when a
8669 reloc is needed. We use this hook to get the correct .got reloc. */
8670 static int cons_sign = -1;
8673 x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len,
8674 expressionS *exp, bfd_reloc_code_real_type r)
8676 r = reloc (len, 0, cons_sign, r);
8679 if (exp->X_op == O_secrel)
8681 exp->X_op = O_symbol;
8682 r = BFD_RELOC_32_SECREL;
8686 fix_new_exp (frag, off, len, exp, 0, r);
8689 /* Export the ABI address size for use by TC_ADDRESS_BYTES for the
8690 purpose of the `.dc.a' internal pseudo-op. */
8693 x86_address_bytes (void)
8695 if ((stdoutput->arch_info->mach & bfd_mach_x64_32))
8697 return stdoutput->arch_info->bits_per_address / 8;
8700 #if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \
8702 # define lex_got(reloc, adjust, types) NULL
8704 /* Parse operands of the form
8705 <symbol>@GOTOFF+<nnn>
8706 and similar .plt or .got references.
8708 If we find one, set up the correct relocation in RELOC and copy the
8709 input string, minus the `@GOTOFF' into a malloc'd buffer for
8710 parsing by the calling routine. Return this buffer, and if ADJUST
8711 is non-null set it to the length of the string we removed from the
8712 input line. Otherwise return NULL. */
8714 lex_got (enum bfd_reloc_code_real *rel,
8716 i386_operand_type *types)
8718 /* Some of the relocations depend on the size of what field is to
8719 be relocated. But in our callers i386_immediate and i386_displacement
8720 we don't yet know the operand size (this will be set by insn
8721 matching). Hence we record the word32 relocation here,
8722 and adjust the reloc according to the real size in reloc(). */
8723 static const struct {
8726 const enum bfd_reloc_code_real rel[2];
8727 const i386_operand_type types64;
8729 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8730 { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32,
8732 OPERAND_TYPE_IMM32_64 },
8734 { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real,
8735 BFD_RELOC_X86_64_PLTOFF64 },
8736 OPERAND_TYPE_IMM64 },
8737 { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32,
8738 BFD_RELOC_X86_64_PLT32 },
8739 OPERAND_TYPE_IMM32_32S_DISP32 },
8740 { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real,
8741 BFD_RELOC_X86_64_GOTPLT64 },
8742 OPERAND_TYPE_IMM64_DISP64 },
8743 { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF,
8744 BFD_RELOC_X86_64_GOTOFF64 },
8745 OPERAND_TYPE_IMM64_DISP64 },
8746 { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real,
8747 BFD_RELOC_X86_64_GOTPCREL },
8748 OPERAND_TYPE_IMM32_32S_DISP32 },
8749 { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD,
8750 BFD_RELOC_X86_64_TLSGD },
8751 OPERAND_TYPE_IMM32_32S_DISP32 },
8752 { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM,
8753 _dummy_first_bfd_reloc_code_real },
8754 OPERAND_TYPE_NONE },
8755 { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real,
8756 BFD_RELOC_X86_64_TLSLD },
8757 OPERAND_TYPE_IMM32_32S_DISP32 },
8758 { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32,
8759 BFD_RELOC_X86_64_GOTTPOFF },
8760 OPERAND_TYPE_IMM32_32S_DISP32 },
8761 { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32,
8762 BFD_RELOC_X86_64_TPOFF32 },
8763 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
8764 { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE,
8765 _dummy_first_bfd_reloc_code_real },
8766 OPERAND_TYPE_NONE },
8767 { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32,
8768 BFD_RELOC_X86_64_DTPOFF32 },
8769 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
8770 { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE,
8771 _dummy_first_bfd_reloc_code_real },
8772 OPERAND_TYPE_NONE },
8773 { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE,
8774 _dummy_first_bfd_reloc_code_real },
8775 OPERAND_TYPE_NONE },
8776 { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32,
8777 BFD_RELOC_X86_64_GOT32 },
8778 OPERAND_TYPE_IMM32_32S_64_DISP32 },
8779 { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC,
8780 BFD_RELOC_X86_64_GOTPC32_TLSDESC },
8781 OPERAND_TYPE_IMM32_32S_DISP32 },
8782 { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL,
8783 BFD_RELOC_X86_64_TLSDESC_CALL },
8784 OPERAND_TYPE_IMM32_32S_DISP32 },
8789 #if defined (OBJ_MAYBE_ELF)
8794 for (cp = input_line_pointer; *cp != '@'; cp++)
8795 if (is_end_of_line[(unsigned char) *cp] || *cp == ',')
8798 for (j = 0; j < ARRAY_SIZE (gotrel); j++)
8800 int len = gotrel[j].len;
8801 if (strncasecmp (cp + 1, gotrel[j].str, len) == 0)
8803 if (gotrel[j].rel[object_64bit] != 0)
8806 char *tmpbuf, *past_reloc;
8808 *rel = gotrel[j].rel[object_64bit];
8812 if (flag_code != CODE_64BIT)
8814 types->bitfield.imm32 = 1;
8815 types->bitfield.disp32 = 1;
8818 *types = gotrel[j].types64;
8821 if (j != 0 && GOT_symbol == NULL)
8822 GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME);
8824 /* The length of the first part of our input line. */
8825 first = cp - input_line_pointer;
8827 /* The second part goes from after the reloc token until
8828 (and including) an end_of_line char or comma. */
8829 past_reloc = cp + 1 + len;
8831 while (!is_end_of_line[(unsigned char) *cp] && *cp != ',')
8833 second = cp + 1 - past_reloc;
8835 /* Allocate and copy string. The trailing NUL shouldn't
8836 be necessary, but be safe. */
8837 tmpbuf = XNEWVEC (char, first + second + 2);
8838 memcpy (tmpbuf, input_line_pointer, first);
8839 if (second != 0 && *past_reloc != ' ')
8840 /* Replace the relocation token with ' ', so that
8841 errors like foo@GOTOFF1 will be detected. */
8842 tmpbuf[first++] = ' ';
8844 /* Increment length by 1 if the relocation token is
8849 memcpy (tmpbuf + first, past_reloc, second);
8850 tmpbuf[first + second] = '\0';
8854 as_bad (_("@%s reloc is not supported with %d-bit output format"),
8855 gotrel[j].str, 1 << (5 + object_64bit));
8860 /* Might be a symbol version string. Don't as_bad here. */
8869 /* Parse operands of the form
8870 <symbol>@SECREL32+<nnn>
8872 If we find one, set up the correct relocation in RELOC and copy the
8873 input string, minus the `@SECREL32' into a malloc'd buffer for
8874 parsing by the calling routine. Return this buffer, and if ADJUST
8875 is non-null set it to the length of the string we removed from the
8876 input line. Otherwise return NULL.
8878 This function is copied from the ELF version above adjusted for PE targets. */
8881 lex_got (enum bfd_reloc_code_real *rel ATTRIBUTE_UNUSED,
8882 int *adjust ATTRIBUTE_UNUSED,
8883 i386_operand_type *types)
8889 const enum bfd_reloc_code_real rel[2];
8890 const i386_operand_type types64;
8894 { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL,
8895 BFD_RELOC_32_SECREL },
8896 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
8902 for (cp = input_line_pointer; *cp != '@'; cp++)
8903 if (is_end_of_line[(unsigned char) *cp] || *cp == ',')
8906 for (j = 0; j < ARRAY_SIZE (gotrel); j++)
8908 int len = gotrel[j].len;
8910 if (strncasecmp (cp + 1, gotrel[j].str, len) == 0)
8912 if (gotrel[j].rel[object_64bit] != 0)
8915 char *tmpbuf, *past_reloc;
8917 *rel = gotrel[j].rel[object_64bit];
8923 if (flag_code != CODE_64BIT)
8925 types->bitfield.imm32 = 1;
8926 types->bitfield.disp32 = 1;
8929 *types = gotrel[j].types64;
8932 /* The length of the first part of our input line. */
8933 first = cp - input_line_pointer;
8935 /* The second part goes from after the reloc token until
8936 (and including) an end_of_line char or comma. */
8937 past_reloc = cp + 1 + len;
8939 while (!is_end_of_line[(unsigned char) *cp] && *cp != ',')
8941 second = cp + 1 - past_reloc;
8943 /* Allocate and copy string. The trailing NUL shouldn't
8944 be necessary, but be safe. */
8945 tmpbuf = XNEWVEC (char, first + second + 2);
8946 memcpy (tmpbuf, input_line_pointer, first);
8947 if (second != 0 && *past_reloc != ' ')
8948 /* Replace the relocation token with ' ', so that
8949 errors like foo@SECLREL321 will be detected. */
8950 tmpbuf[first++] = ' ';
8951 memcpy (tmpbuf + first, past_reloc, second);
8952 tmpbuf[first + second] = '\0';
8956 as_bad (_("@%s reloc is not supported with %d-bit output format"),
8957 gotrel[j].str, 1 << (5 + object_64bit));
8962 /* Might be a symbol version string. Don't as_bad here. */
8968 bfd_reloc_code_real_type
8969 x86_cons (expressionS *exp, int size)
8971 bfd_reloc_code_real_type got_reloc = NO_RELOC;
8973 intel_syntax = -intel_syntax;
8976 if (size == 4 || (object_64bit && size == 8))
8978 /* Handle @GOTOFF and the like in an expression. */
8980 char *gotfree_input_line;
8983 save = input_line_pointer;
8984 gotfree_input_line = lex_got (&got_reloc, &adjust, NULL);
8985 if (gotfree_input_line)
8986 input_line_pointer = gotfree_input_line;
8990 if (gotfree_input_line)
8992 /* expression () has merrily parsed up to the end of line,
8993 or a comma - in the wrong buffer. Transfer how far
8994 input_line_pointer has moved to the right buffer. */
8995 input_line_pointer = (save
8996 + (input_line_pointer - gotfree_input_line)
8998 free (gotfree_input_line);
8999 if (exp->X_op == O_constant
9000 || exp->X_op == O_absent
9001 || exp->X_op == O_illegal
9002 || exp->X_op == O_register
9003 || exp->X_op == O_big)
9005 char c = *input_line_pointer;
9006 *input_line_pointer = 0;
9007 as_bad (_("missing or invalid expression `%s'"), save);
9008 *input_line_pointer = c;
9010 else if ((got_reloc == BFD_RELOC_386_PLT32
9011 || got_reloc == BFD_RELOC_X86_64_PLT32)
9012 && exp->X_op != O_symbol)
9014 char c = *input_line_pointer;
9015 *input_line_pointer = 0;
9016 as_bad (_("invalid PLT expression `%s'"), save);
9017 *input_line_pointer = c;
9024 intel_syntax = -intel_syntax;
9027 i386_intel_simplify (exp);
9033 signed_cons (int size)
9035 if (flag_code == CODE_64BIT)
9043 pe_directive_secrel (int dummy ATTRIBUTE_UNUSED)
9050 if (exp.X_op == O_symbol)
9051 exp.X_op = O_secrel;
9053 emit_expr (&exp, 4);
9055 while (*input_line_pointer++ == ',');
9057 input_line_pointer--;
9058 demand_empty_rest_of_line ();
9062 /* Handle Vector operations. */
9065 check_VecOperations (char *op_string, char *op_end)
9067 const reg_entry *mask;
9072 && (op_end == NULL || op_string < op_end))
9075 if (*op_string == '{')
9079 /* Check broadcasts. */
9080 if (strncmp (op_string, "1to", 3) == 0)
9085 goto duplicated_vec_op;
9088 if (*op_string == '8')
9090 else if (*op_string == '4')
9092 else if (*op_string == '2')
9094 else if (*op_string == '1'
9095 && *(op_string+1) == '6')
9102 as_bad (_("Unsupported broadcast: `%s'"), saved);
9107 broadcast_op.type = bcst_type;
9108 broadcast_op.operand = this_operand;
9109 broadcast_op.bytes = 0;
9110 i.broadcast = &broadcast_op;
9112 /* Check masking operation. */
9113 else if ((mask = parse_register (op_string, &end_op)) != NULL)
9115 /* k0 can't be used for write mask. */
9116 if (!mask->reg_type.bitfield.regmask || mask->reg_num == 0)
9118 as_bad (_("`%s%s' can't be used for write mask"),
9119 register_prefix, mask->reg_name);
9125 mask_op.mask = mask;
9126 mask_op.zeroing = 0;
9127 mask_op.operand = this_operand;
9133 goto duplicated_vec_op;
9135 i.mask->mask = mask;
9137 /* Only "{z}" is allowed here. No need to check
9138 zeroing mask explicitly. */
9139 if (i.mask->operand != this_operand)
9141 as_bad (_("invalid write mask `%s'"), saved);
9148 /* Check zeroing-flag for masking operation. */
9149 else if (*op_string == 'z')
9153 mask_op.mask = NULL;
9154 mask_op.zeroing = 1;
9155 mask_op.operand = this_operand;
9160 if (i.mask->zeroing)
9163 as_bad (_("duplicated `%s'"), saved);
9167 i.mask->zeroing = 1;
9169 /* Only "{%k}" is allowed here. No need to check mask
9170 register explicitly. */
9171 if (i.mask->operand != this_operand)
9173 as_bad (_("invalid zeroing-masking `%s'"),
9182 goto unknown_vec_op;
9184 if (*op_string != '}')
9186 as_bad (_("missing `}' in `%s'"), saved);
9191 /* Strip whitespace since the addition of pseudo prefixes
9192 changed how the scrubber treats '{'. */
9193 if (is_space_char (*op_string))
9199 /* We don't know this one. */
9200 as_bad (_("unknown vector operation: `%s'"), saved);
9204 if (i.mask && i.mask->zeroing && !i.mask->mask)
9206 as_bad (_("zeroing-masking only allowed with write mask"));
9214 i386_immediate (char *imm_start)
9216 char *save_input_line_pointer;
9217 char *gotfree_input_line;
9220 i386_operand_type types;
9222 operand_type_set (&types, ~0);
9224 if (i.imm_operands == MAX_IMMEDIATE_OPERANDS)
9226 as_bad (_("at most %d immediate operands are allowed"),
9227 MAX_IMMEDIATE_OPERANDS);
9231 exp = &im_expressions[i.imm_operands++];
9232 i.op[this_operand].imms = exp;
9234 if (is_space_char (*imm_start))
9237 save_input_line_pointer = input_line_pointer;
9238 input_line_pointer = imm_start;
9240 gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
9241 if (gotfree_input_line)
9242 input_line_pointer = gotfree_input_line;
9244 exp_seg = expression (exp);
9248 /* Handle vector operations. */
9249 if (*input_line_pointer == '{')
9251 input_line_pointer = check_VecOperations (input_line_pointer,
9253 if (input_line_pointer == NULL)
9257 if (*input_line_pointer)
9258 as_bad (_("junk `%s' after expression"), input_line_pointer);
9260 input_line_pointer = save_input_line_pointer;
9261 if (gotfree_input_line)
9263 free (gotfree_input_line);
9265 if (exp->X_op == O_constant || exp->X_op == O_register)
9266 exp->X_op = O_illegal;
9269 return i386_finalize_immediate (exp_seg, exp, types, imm_start);
9273 i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp,
9274 i386_operand_type types, const char *imm_start)
9276 if (exp->X_op == O_absent || exp->X_op == O_illegal || exp->X_op == O_big)
9279 as_bad (_("missing or invalid immediate expression `%s'"),
9283 else if (exp->X_op == O_constant)
9285 /* Size it properly later. */
9286 i.types[this_operand].bitfield.imm64 = 1;
9287 /* If not 64bit, sign extend val. */
9288 if (flag_code != CODE_64BIT
9289 && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0)
9291 = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31);
9293 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
9294 else if (OUTPUT_FLAVOR == bfd_target_aout_flavour
9295 && exp_seg != absolute_section
9296 && exp_seg != text_section
9297 && exp_seg != data_section
9298 && exp_seg != bss_section
9299 && exp_seg != undefined_section
9300 && !bfd_is_com_section (exp_seg))
9302 as_bad (_("unimplemented segment %s in operand"), exp_seg->name);
9306 else if (!intel_syntax && exp_seg == reg_section)
9309 as_bad (_("illegal immediate register operand %s"), imm_start);
9314 /* This is an address. The size of the address will be
9315 determined later, depending on destination register,
9316 suffix, or the default for the section. */
9317 i.types[this_operand].bitfield.imm8 = 1;
9318 i.types[this_operand].bitfield.imm16 = 1;
9319 i.types[this_operand].bitfield.imm32 = 1;
9320 i.types[this_operand].bitfield.imm32s = 1;
9321 i.types[this_operand].bitfield.imm64 = 1;
9322 i.types[this_operand] = operand_type_and (i.types[this_operand],
9330 i386_scale (char *scale)
9333 char *save = input_line_pointer;
9335 input_line_pointer = scale;
9336 val = get_absolute_expression ();
9341 i.log2_scale_factor = 0;
9344 i.log2_scale_factor = 1;
9347 i.log2_scale_factor = 2;
9350 i.log2_scale_factor = 3;
9354 char sep = *input_line_pointer;
9356 *input_line_pointer = '\0';
9357 as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"),
9359 *input_line_pointer = sep;
9360 input_line_pointer = save;
9364 if (i.log2_scale_factor != 0 && i.index_reg == 0)
9366 as_warn (_("scale factor of %d without an index register"),
9367 1 << i.log2_scale_factor);
9368 i.log2_scale_factor = 0;
9370 scale = input_line_pointer;
9371 input_line_pointer = save;
9376 i386_displacement (char *disp_start, char *disp_end)
9380 char *save_input_line_pointer;
9381 char *gotfree_input_line;
9383 i386_operand_type bigdisp, types = anydisp;
9386 if (i.disp_operands == MAX_MEMORY_OPERANDS)
9388 as_bad (_("at most %d displacement operands are allowed"),
9389 MAX_MEMORY_OPERANDS);
9393 operand_type_set (&bigdisp, 0);
9394 if ((i.types[this_operand].bitfield.jumpabsolute)
9395 || (!current_templates->start->opcode_modifier.jump
9396 && !current_templates->start->opcode_modifier.jumpdword))
9398 bigdisp.bitfield.disp32 = 1;
9399 override = (i.prefix[ADDR_PREFIX] != 0);
9400 if (flag_code == CODE_64BIT)
9404 bigdisp.bitfield.disp32s = 1;
9405 bigdisp.bitfield.disp64 = 1;
9408 else if ((flag_code == CODE_16BIT) ^ override)
9410 bigdisp.bitfield.disp32 = 0;
9411 bigdisp.bitfield.disp16 = 1;
9416 /* For PC-relative branches, the width of the displacement
9417 is dependent upon data size, not address size. */
9418 override = (i.prefix[DATA_PREFIX] != 0);
9419 if (flag_code == CODE_64BIT)
9421 if (override || i.suffix == WORD_MNEM_SUFFIX)
9422 bigdisp.bitfield.disp16 = 1;
9425 bigdisp.bitfield.disp32 = 1;
9426 bigdisp.bitfield.disp32s = 1;
9432 override = (i.suffix == (flag_code != CODE_16BIT
9434 : LONG_MNEM_SUFFIX));
9435 bigdisp.bitfield.disp32 = 1;
9436 if ((flag_code == CODE_16BIT) ^ override)
9438 bigdisp.bitfield.disp32 = 0;
9439 bigdisp.bitfield.disp16 = 1;
9443 i.types[this_operand] = operand_type_or (i.types[this_operand],
9446 exp = &disp_expressions[i.disp_operands];
9447 i.op[this_operand].disps = exp;
9449 save_input_line_pointer = input_line_pointer;
9450 input_line_pointer = disp_start;
9451 END_STRING_AND_SAVE (disp_end);
9453 #ifndef GCC_ASM_O_HACK
9454 #define GCC_ASM_O_HACK 0
9457 END_STRING_AND_SAVE (disp_end + 1);
9458 if (i.types[this_operand].bitfield.baseIndex
9459 && displacement_string_end[-1] == '+')
9461 /* This hack is to avoid a warning when using the "o"
9462 constraint within gcc asm statements.
9465 #define _set_tssldt_desc(n,addr,limit,type) \
9466 __asm__ __volatile__ ( \
9468 "movw %w1,2+%0\n\t" \
9470 "movb %b1,4+%0\n\t" \
9471 "movb %4,5+%0\n\t" \
9472 "movb $0,6+%0\n\t" \
9473 "movb %h1,7+%0\n\t" \
9475 : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type))
9477 This works great except that the output assembler ends
9478 up looking a bit weird if it turns out that there is
9479 no offset. You end up producing code that looks like:
9492 So here we provide the missing zero. */
9494 *displacement_string_end = '0';
9497 gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
9498 if (gotfree_input_line)
9499 input_line_pointer = gotfree_input_line;
9501 exp_seg = expression (exp);
9504 if (*input_line_pointer)
9505 as_bad (_("junk `%s' after expression"), input_line_pointer);
9507 RESTORE_END_STRING (disp_end + 1);
9509 input_line_pointer = save_input_line_pointer;
9510 if (gotfree_input_line)
9512 free (gotfree_input_line);
9514 if (exp->X_op == O_constant || exp->X_op == O_register)
9515 exp->X_op = O_illegal;
9518 ret = i386_finalize_displacement (exp_seg, exp, types, disp_start);
9520 RESTORE_END_STRING (disp_end);
9526 i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp,
9527 i386_operand_type types, const char *disp_start)
9529 i386_operand_type bigdisp;
9532 /* We do this to make sure that the section symbol is in
9533 the symbol table. We will ultimately change the relocation
9534 to be relative to the beginning of the section. */
9535 if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF
9536 || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL
9537 || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64)
9539 if (exp->X_op != O_symbol)
9542 if (S_IS_LOCAL (exp->X_add_symbol)
9543 && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section
9544 && S_GET_SEGMENT (exp->X_add_symbol) != expr_section)
9545 section_symbol (S_GET_SEGMENT (exp->X_add_symbol));
9546 exp->X_op = O_subtract;
9547 exp->X_op_symbol = GOT_symbol;
9548 if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL)
9549 i.reloc[this_operand] = BFD_RELOC_32_PCREL;
9550 else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64)
9551 i.reloc[this_operand] = BFD_RELOC_64;
9553 i.reloc[this_operand] = BFD_RELOC_32;
9556 else if (exp->X_op == O_absent
9557 || exp->X_op == O_illegal
9558 || exp->X_op == O_big)
9561 as_bad (_("missing or invalid displacement expression `%s'"),
9566 else if (flag_code == CODE_64BIT
9567 && !i.prefix[ADDR_PREFIX]
9568 && exp->X_op == O_constant)
9570 /* Since displacement is signed extended to 64bit, don't allow
9571 disp32 and turn off disp32s if they are out of range. */
9572 i.types[this_operand].bitfield.disp32 = 0;
9573 if (!fits_in_signed_long (exp->X_add_number))
9575 i.types[this_operand].bitfield.disp32s = 0;
9576 if (i.types[this_operand].bitfield.baseindex)
9578 as_bad (_("0x%lx out range of signed 32bit displacement"),
9579 (long) exp->X_add_number);
9585 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
9586 else if (exp->X_op != O_constant
9587 && OUTPUT_FLAVOR == bfd_target_aout_flavour
9588 && exp_seg != absolute_section
9589 && exp_seg != text_section
9590 && exp_seg != data_section
9591 && exp_seg != bss_section
9592 && exp_seg != undefined_section
9593 && !bfd_is_com_section (exp_seg))
9595 as_bad (_("unimplemented segment %s in operand"), exp_seg->name);
9600 /* Check if this is a displacement only operand. */
9601 bigdisp = i.types[this_operand];
9602 bigdisp.bitfield.disp8 = 0;
9603 bigdisp.bitfield.disp16 = 0;
9604 bigdisp.bitfield.disp32 = 0;
9605 bigdisp.bitfield.disp32s = 0;
9606 bigdisp.bitfield.disp64 = 0;
9607 if (operand_type_all_zero (&bigdisp))
9608 i.types[this_operand] = operand_type_and (i.types[this_operand],
9614 /* Return the active addressing mode, taking address override and
9615 registers forming the address into consideration. Update the
9616 address override prefix if necessary. */
9618 static enum flag_code
9619 i386_addressing_mode (void)
9621 enum flag_code addr_mode;
9623 if (i.prefix[ADDR_PREFIX])
9624 addr_mode = flag_code == CODE_32BIT ? CODE_16BIT : CODE_32BIT;
9627 addr_mode = flag_code;
9629 #if INFER_ADDR_PREFIX
9630 if (i.mem_operands == 0)
9632 /* Infer address prefix from the first memory operand. */
9633 const reg_entry *addr_reg = i.base_reg;
9635 if (addr_reg == NULL)
9636 addr_reg = i.index_reg;
9640 if (addr_reg->reg_type.bitfield.dword)
9641 addr_mode = CODE_32BIT;
9642 else if (flag_code != CODE_64BIT
9643 && addr_reg->reg_type.bitfield.word)
9644 addr_mode = CODE_16BIT;
9646 if (addr_mode != flag_code)
9648 i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE;
9650 /* Change the size of any displacement too. At most one
9651 of Disp16 or Disp32 is set.
9652 FIXME. There doesn't seem to be any real need for
9653 separate Disp16 and Disp32 flags. The same goes for
9654 Imm16 and Imm32. Removing them would probably clean
9655 up the code quite a lot. */
9656 if (flag_code != CODE_64BIT
9657 && (i.types[this_operand].bitfield.disp16
9658 || i.types[this_operand].bitfield.disp32))
9659 i.types[this_operand]
9660 = operand_type_xor (i.types[this_operand], disp16_32);
9670 /* Make sure the memory operand we've been dealt is valid.
9671 Return 1 on success, 0 on a failure. */
9674 i386_index_check (const char *operand_string)
9676 const char *kind = "base/index";
9677 enum flag_code addr_mode = i386_addressing_mode ();
9679 if (current_templates->start->opcode_modifier.isstring
9680 && !current_templates->start->opcode_modifier.immext
9681 && (current_templates->end[-1].opcode_modifier.isstring
9684 /* Memory operands of string insns are special in that they only allow
9685 a single register (rDI, rSI, or rBX) as their memory address. */
9686 const reg_entry *expected_reg;
9687 static const char *di_si[][2] =
9693 static const char *bx[] = { "ebx", "bx", "rbx" };
9695 kind = "string address";
9697 if (current_templates->start->opcode_modifier.repprefixok)
9699 i386_operand_type type = current_templates->end[-1].operand_types[0];
9701 if (!type.bitfield.baseindex
9702 || ((!i.mem_operands != !intel_syntax)
9703 && current_templates->end[-1].operand_types[1]
9704 .bitfield.baseindex))
9705 type = current_templates->end[-1].operand_types[1];
9706 expected_reg = hash_find (reg_hash,
9707 di_si[addr_mode][type.bitfield.esseg]);
9711 expected_reg = hash_find (reg_hash, bx[addr_mode]);
9713 if (i.base_reg != expected_reg
9715 || operand_type_check (i.types[this_operand], disp))
9717 /* The second memory operand must have the same size as
9721 && !((addr_mode == CODE_64BIT
9722 && i.base_reg->reg_type.bitfield.qword)
9723 || (addr_mode == CODE_32BIT
9724 ? i.base_reg->reg_type.bitfield.dword
9725 : i.base_reg->reg_type.bitfield.word)))
9728 as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"),
9730 intel_syntax ? '[' : '(',
9732 expected_reg->reg_name,
9733 intel_syntax ? ']' : ')');
9740 as_bad (_("`%s' is not a valid %s expression"),
9741 operand_string, kind);
9746 if (addr_mode != CODE_16BIT)
9748 /* 32-bit/64-bit checks. */
9750 && ((addr_mode == CODE_64BIT
9751 ? !i.base_reg->reg_type.bitfield.qword
9752 : !i.base_reg->reg_type.bitfield.dword)
9753 || (i.index_reg && i.base_reg->reg_num == RegIP)
9754 || i.base_reg->reg_num == RegIZ))
9756 && !i.index_reg->reg_type.bitfield.xmmword
9757 && !i.index_reg->reg_type.bitfield.ymmword
9758 && !i.index_reg->reg_type.bitfield.zmmword
9759 && ((addr_mode == CODE_64BIT
9760 ? !i.index_reg->reg_type.bitfield.qword
9761 : !i.index_reg->reg_type.bitfield.dword)
9762 || !i.index_reg->reg_type.bitfield.baseindex)))
9765 /* bndmk, bndldx, and bndstx have special restrictions. */
9766 if (current_templates->start->base_opcode == 0xf30f1b
9767 || (current_templates->start->base_opcode & ~1) == 0x0f1a)
9769 /* They cannot use RIP-relative addressing. */
9770 if (i.base_reg && i.base_reg->reg_num == RegIP)
9772 as_bad (_("`%s' cannot be used here"), operand_string);
9776 /* bndldx and bndstx ignore their scale factor. */
9777 if (current_templates->start->base_opcode != 0xf30f1b
9778 && i.log2_scale_factor)
9779 as_warn (_("register scaling is being ignored here"));
9784 /* 16-bit checks. */
9786 && (!i.base_reg->reg_type.bitfield.word
9787 || !i.base_reg->reg_type.bitfield.baseindex))
9789 && (!i.index_reg->reg_type.bitfield.word
9790 || !i.index_reg->reg_type.bitfield.baseindex
9792 && i.base_reg->reg_num < 6
9793 && i.index_reg->reg_num >= 6
9794 && i.log2_scale_factor == 0))))
9801 /* Handle vector immediates. */
9804 RC_SAE_immediate (const char *imm_start)
9806 unsigned int match_found, j;
9807 const char *pstr = imm_start;
9815 for (j = 0; j < ARRAY_SIZE (RC_NamesTable); j++)
9817 if (!strncmp (pstr, RC_NamesTable[j].name, RC_NamesTable[j].len))
9821 rc_op.type = RC_NamesTable[j].type;
9822 rc_op.operand = this_operand;
9823 i.rounding = &rc_op;
9827 as_bad (_("duplicated `%s'"), imm_start);
9830 pstr += RC_NamesTable[j].len;
9840 as_bad (_("Missing '}': '%s'"), imm_start);
9843 /* RC/SAE immediate string should contain nothing more. */;
9846 as_bad (_("Junk after '}': '%s'"), imm_start);
9850 exp = &im_expressions[i.imm_operands++];
9851 i.op[this_operand].imms = exp;
9853 exp->X_op = O_constant;
9854 exp->X_add_number = 0;
9855 exp->X_add_symbol = (symbolS *) 0;
9856 exp->X_op_symbol = (symbolS *) 0;
9858 i.types[this_operand].bitfield.imm8 = 1;
9862 /* Only string instructions can have a second memory operand, so
9863 reduce current_templates to just those if it contains any. */
9865 maybe_adjust_templates (void)
9867 const insn_template *t;
9869 gas_assert (i.mem_operands == 1);
9871 for (t = current_templates->start; t < current_templates->end; ++t)
9872 if (t->opcode_modifier.isstring)
9875 if (t < current_templates->end)
9877 static templates aux_templates;
9878 bfd_boolean recheck;
9880 aux_templates.start = t;
9881 for (; t < current_templates->end; ++t)
9882 if (!t->opcode_modifier.isstring)
9884 aux_templates.end = t;
9886 /* Determine whether to re-check the first memory operand. */
9887 recheck = (aux_templates.start != current_templates->start
9888 || t != current_templates->end);
9890 current_templates = &aux_templates;
9895 if (i.memop1_string != NULL
9896 && i386_index_check (i.memop1_string) == 0)
9905 /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero
9909 i386_att_operand (char *operand_string)
9913 char *op_string = operand_string;
9915 if (is_space_char (*op_string))
9918 /* We check for an absolute prefix (differentiating,
9919 for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */
9920 if (*op_string == ABSOLUTE_PREFIX)
9923 if (is_space_char (*op_string))
9925 i.types[this_operand].bitfield.jumpabsolute = 1;
9928 /* Check if operand is a register. */
9929 if ((r = parse_register (op_string, &end_op)) != NULL)
9931 i386_operand_type temp;
9933 /* Check for a segment override by searching for ':' after a
9934 segment register. */
9936 if (is_space_char (*op_string))
9938 if (*op_string == ':'
9939 && (r->reg_type.bitfield.sreg2
9940 || r->reg_type.bitfield.sreg3))
9945 i.seg[i.mem_operands] = &es;
9948 i.seg[i.mem_operands] = &cs;
9951 i.seg[i.mem_operands] = &ss;
9954 i.seg[i.mem_operands] = &ds;
9957 i.seg[i.mem_operands] = &fs;
9960 i.seg[i.mem_operands] = &gs;
9964 /* Skip the ':' and whitespace. */
9966 if (is_space_char (*op_string))
9969 if (!is_digit_char (*op_string)
9970 && !is_identifier_char (*op_string)
9971 && *op_string != '('
9972 && *op_string != ABSOLUTE_PREFIX)
9974 as_bad (_("bad memory operand `%s'"), op_string);
9977 /* Handle case of %es:*foo. */
9978 if (*op_string == ABSOLUTE_PREFIX)
9981 if (is_space_char (*op_string))
9983 i.types[this_operand].bitfield.jumpabsolute = 1;
9985 goto do_memory_reference;
9988 /* Handle vector operations. */
9989 if (*op_string == '{')
9991 op_string = check_VecOperations (op_string, NULL);
9992 if (op_string == NULL)
9998 as_bad (_("junk `%s' after register"), op_string);
10001 temp = r->reg_type;
10002 temp.bitfield.baseindex = 0;
10003 i.types[this_operand] = operand_type_or (i.types[this_operand],
10005 i.types[this_operand].bitfield.unspecified = 0;
10006 i.op[this_operand].regs = r;
10009 else if (*op_string == REGISTER_PREFIX)
10011 as_bad (_("bad register name `%s'"), op_string);
10014 else if (*op_string == IMMEDIATE_PREFIX)
10017 if (i.types[this_operand].bitfield.jumpabsolute)
10019 as_bad (_("immediate operand illegal with absolute jump"));
10022 if (!i386_immediate (op_string))
10025 else if (RC_SAE_immediate (operand_string))
10027 /* If it is a RC or SAE immediate, do nothing. */
10030 else if (is_digit_char (*op_string)
10031 || is_identifier_char (*op_string)
10032 || *op_string == '"'
10033 || *op_string == '(')
10035 /* This is a memory reference of some sort. */
10038 /* Start and end of displacement string expression (if found). */
10039 char *displacement_string_start;
10040 char *displacement_string_end;
10043 do_memory_reference:
10044 if (i.mem_operands == 1 && !maybe_adjust_templates ())
10046 if ((i.mem_operands == 1
10047 && !current_templates->start->opcode_modifier.isstring)
10048 || i.mem_operands == 2)
10050 as_bad (_("too many memory references for `%s'"),
10051 current_templates->start->name);
10055 /* Check for base index form. We detect the base index form by
10056 looking for an ')' at the end of the operand, searching
10057 for the '(' matching it, and finding a REGISTER_PREFIX or ','
10059 base_string = op_string + strlen (op_string);
10061 /* Handle vector operations. */
10062 vop_start = strchr (op_string, '{');
10063 if (vop_start && vop_start < base_string)
10065 if (check_VecOperations (vop_start, base_string) == NULL)
10067 base_string = vop_start;
10071 if (is_space_char (*base_string))
10074 /* If we only have a displacement, set-up for it to be parsed later. */
10075 displacement_string_start = op_string;
10076 displacement_string_end = base_string + 1;
10078 if (*base_string == ')')
10081 unsigned int parens_balanced = 1;
10082 /* We've already checked that the number of left & right ()'s are
10083 equal, so this loop will not be infinite. */
10087 if (*base_string == ')')
10089 if (*base_string == '(')
10092 while (parens_balanced);
10094 temp_string = base_string;
10096 /* Skip past '(' and whitespace. */
10098 if (is_space_char (*base_string))
10101 if (*base_string == ','
10102 || ((i.base_reg = parse_register (base_string, &end_op))
10105 displacement_string_end = temp_string;
10107 i.types[this_operand].bitfield.baseindex = 1;
10111 base_string = end_op;
10112 if (is_space_char (*base_string))
10116 /* There may be an index reg or scale factor here. */
10117 if (*base_string == ',')
10120 if (is_space_char (*base_string))
10123 if ((i.index_reg = parse_register (base_string, &end_op))
10126 base_string = end_op;
10127 if (is_space_char (*base_string))
10129 if (*base_string == ',')
10132 if (is_space_char (*base_string))
10135 else if (*base_string != ')')
10137 as_bad (_("expecting `,' or `)' "
10138 "after index register in `%s'"),
10143 else if (*base_string == REGISTER_PREFIX)
10145 end_op = strchr (base_string, ',');
10148 as_bad (_("bad register name `%s'"), base_string);
10152 /* Check for scale factor. */
10153 if (*base_string != ')')
10155 char *end_scale = i386_scale (base_string);
10160 base_string = end_scale;
10161 if (is_space_char (*base_string))
10163 if (*base_string != ')')
10165 as_bad (_("expecting `)' "
10166 "after scale factor in `%s'"),
10171 else if (!i.index_reg)
10173 as_bad (_("expecting index register or scale factor "
10174 "after `,'; got '%c'"),
10179 else if (*base_string != ')')
10181 as_bad (_("expecting `,' or `)' "
10182 "after base register in `%s'"),
10187 else if (*base_string == REGISTER_PREFIX)
10189 end_op = strchr (base_string, ',');
10192 as_bad (_("bad register name `%s'"), base_string);
10197 /* If there's an expression beginning the operand, parse it,
10198 assuming displacement_string_start and
10199 displacement_string_end are meaningful. */
10200 if (displacement_string_start != displacement_string_end)
10202 if (!i386_displacement (displacement_string_start,
10203 displacement_string_end))
10207 /* Special case for (%dx) while doing input/output op. */
10209 && i.base_reg->reg_type.bitfield.inoutportreg
10210 && i.index_reg == 0
10211 && i.log2_scale_factor == 0
10212 && i.seg[i.mem_operands] == 0
10213 && !operand_type_check (i.types[this_operand], disp))
10215 i.types[this_operand] = i.base_reg->reg_type;
10219 if (i386_index_check (operand_string) == 0)
10221 i.flags[this_operand] |= Operand_Mem;
10222 if (i.mem_operands == 0)
10223 i.memop1_string = xstrdup (operand_string);
10228 /* It's not a memory operand; argh! */
10229 as_bad (_("invalid char %s beginning operand %d `%s'"),
10230 output_invalid (*op_string),
10235 return 1; /* Normal return. */
10238 /* Calculate the maximum variable size (i.e., excluding fr_fix)
10239 that an rs_machine_dependent frag may reach. */
10242 i386_frag_max_var (fragS *frag)
10244 /* The only relaxable frags are for jumps.
10245 Unconditional jumps can grow by 4 bytes and others by 5 bytes. */
10246 gas_assert (frag->fr_type == rs_machine_dependent);
10247 return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5;
10250 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10252 elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var)
10254 /* STT_GNU_IFUNC symbol must go through PLT. */
10255 if ((symbol_get_bfdsym (fr_symbol)->flags
10256 & BSF_GNU_INDIRECT_FUNCTION) != 0)
10259 if (!S_IS_EXTERNAL (fr_symbol))
10260 /* Symbol may be weak or local. */
10261 return !S_IS_WEAK (fr_symbol);
10263 /* Global symbols with non-default visibility can't be preempted. */
10264 if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT)
10267 if (fr_var != NO_RELOC)
10268 switch ((enum bfd_reloc_code_real) fr_var)
10270 case BFD_RELOC_386_PLT32:
10271 case BFD_RELOC_X86_64_PLT32:
10272 /* Symbol with PLT relocation may be preempted. */
10278 /* Global symbols with default visibility in a shared library may be
10279 preempted by another definition. */
10284 /* md_estimate_size_before_relax()
10286 Called just before relax() for rs_machine_dependent frags. The x86
10287 assembler uses these frags to handle variable size jump
10290 Any symbol that is now undefined will not become defined.
10291 Return the correct fr_subtype in the frag.
10292 Return the initial "guess for variable size of frag" to caller.
10293 The guess is actually the growth beyond the fixed part. Whatever
10294 we do to grow the fixed or variable part contributes to our
10298 md_estimate_size_before_relax (fragS *fragP, segT segment)
10300 /* We've already got fragP->fr_subtype right; all we have to do is
10301 check for un-relaxable symbols. On an ELF system, we can't relax
10302 an externally visible symbol, because it may be overridden by a
10304 if (S_GET_SEGMENT (fragP->fr_symbol) != segment
10305 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10307 && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol,
10310 #if defined (OBJ_COFF) && defined (TE_PE)
10311 || (OUTPUT_FLAVOR == bfd_target_coff_flavour
10312 && S_IS_WEAK (fragP->fr_symbol))
10316 /* Symbol is undefined in this segment, or we need to keep a
10317 reloc so that weak symbols can be overridden. */
10318 int size = (fragP->fr_subtype & CODE16) ? 2 : 4;
10319 enum bfd_reloc_code_real reloc_type;
10320 unsigned char *opcode;
10323 if (fragP->fr_var != NO_RELOC)
10324 reloc_type = (enum bfd_reloc_code_real) fragP->fr_var;
10325 else if (size == 2)
10326 reloc_type = BFD_RELOC_16_PCREL;
10327 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10328 else if (need_plt32_p (fragP->fr_symbol))
10329 reloc_type = BFD_RELOC_X86_64_PLT32;
10332 reloc_type = BFD_RELOC_32_PCREL;
10334 old_fr_fix = fragP->fr_fix;
10335 opcode = (unsigned char *) fragP->fr_opcode;
10337 switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype))
10340 /* Make jmp (0xeb) a (d)word displacement jump. */
10342 fragP->fr_fix += size;
10343 fix_new (fragP, old_fr_fix, size,
10345 fragP->fr_offset, 1,
10351 && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC))
10353 /* Negate the condition, and branch past an
10354 unconditional jump. */
10357 /* Insert an unconditional jump. */
10359 /* We added two extra opcode bytes, and have a two byte
10361 fragP->fr_fix += 2 + 2;
10362 fix_new (fragP, old_fr_fix + 2, 2,
10364 fragP->fr_offset, 1,
10368 /* Fall through. */
10371 if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC)
10375 fragP->fr_fix += 1;
10376 fixP = fix_new (fragP, old_fr_fix, 1,
10378 fragP->fr_offset, 1,
10379 BFD_RELOC_8_PCREL);
10380 fixP->fx_signed = 1;
10384 /* This changes the byte-displacement jump 0x7N
10385 to the (d)word-displacement jump 0x0f,0x8N. */
10386 opcode[1] = opcode[0] + 0x10;
10387 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
10388 /* We've added an opcode byte. */
10389 fragP->fr_fix += 1 + size;
10390 fix_new (fragP, old_fr_fix + 1, size,
10392 fragP->fr_offset, 1,
10397 BAD_CASE (fragP->fr_subtype);
10401 return fragP->fr_fix - old_fr_fix;
10404 /* Guess size depending on current relax state. Initially the relax
10405 state will correspond to a short jump and we return 1, because
10406 the variable part of the frag (the branch offset) is one byte
10407 long. However, we can relax a section more than once and in that
10408 case we must either set fr_subtype back to the unrelaxed state,
10409 or return the value for the appropriate branch. */
10410 return md_relax_table[fragP->fr_subtype].rlx_length;
10413 /* Called after relax() is finished.
10415 In: Address of frag.
10416 fr_type == rs_machine_dependent.
10417 fr_subtype is what the address relaxed to.
10419 Out: Any fixSs and constants are set up.
10420 Caller will turn frag into a ".space 0". */
10423 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT sec ATTRIBUTE_UNUSED,
10426 unsigned char *opcode;
10427 unsigned char *where_to_put_displacement = NULL;
10428 offsetT target_address;
10429 offsetT opcode_address;
10430 unsigned int extension = 0;
10431 offsetT displacement_from_opcode_start;
10433 opcode = (unsigned char *) fragP->fr_opcode;
10435 /* Address we want to reach in file space. */
10436 target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
10438 /* Address opcode resides at in file space. */
10439 opcode_address = fragP->fr_address + fragP->fr_fix;
10441 /* Displacement from opcode start to fill into instruction. */
10442 displacement_from_opcode_start = target_address - opcode_address;
10444 if ((fragP->fr_subtype & BIG) == 0)
10446 /* Don't have to change opcode. */
10447 extension = 1; /* 1 opcode + 1 displacement */
10448 where_to_put_displacement = &opcode[1];
10452 if (no_cond_jump_promotion
10453 && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP)
10454 as_warn_where (fragP->fr_file, fragP->fr_line,
10455 _("long jump required"));
10457 switch (fragP->fr_subtype)
10459 case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG):
10460 extension = 4; /* 1 opcode + 4 displacement */
10462 where_to_put_displacement = &opcode[1];
10465 case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16):
10466 extension = 2; /* 1 opcode + 2 displacement */
10468 where_to_put_displacement = &opcode[1];
10471 case ENCODE_RELAX_STATE (COND_JUMP, BIG):
10472 case ENCODE_RELAX_STATE (COND_JUMP86, BIG):
10473 extension = 5; /* 2 opcode + 4 displacement */
10474 opcode[1] = opcode[0] + 0x10;
10475 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
10476 where_to_put_displacement = &opcode[2];
10479 case ENCODE_RELAX_STATE (COND_JUMP, BIG16):
10480 extension = 3; /* 2 opcode + 2 displacement */
10481 opcode[1] = opcode[0] + 0x10;
10482 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
10483 where_to_put_displacement = &opcode[2];
10486 case ENCODE_RELAX_STATE (COND_JUMP86, BIG16):
10491 where_to_put_displacement = &opcode[3];
10495 BAD_CASE (fragP->fr_subtype);
10500 /* If size if less then four we are sure that the operand fits,
10501 but if it's 4, then it could be that the displacement is larger
10503 if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4
10505 && ((addressT) (displacement_from_opcode_start - extension
10506 + ((addressT) 1 << 31))
10507 > (((addressT) 2 << 31) - 1)))
10509 as_bad_where (fragP->fr_file, fragP->fr_line,
10510 _("jump target out of range"));
10511 /* Make us emit 0. */
10512 displacement_from_opcode_start = extension;
10514 /* Now put displacement after opcode. */
10515 md_number_to_chars ((char *) where_to_put_displacement,
10516 (valueT) (displacement_from_opcode_start - extension),
10517 DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype));
10518 fragP->fr_fix += extension;
10521 /* Apply a fixup (fixP) to segment data, once it has been determined
10522 by our caller that we have all the info we need to fix it up.
10524 Parameter valP is the pointer to the value of the bits.
10526 On the 386, immediates, displacements, and data pointers are all in
10527 the same (little-endian) format, so we don't need to care about which
10528 we are handling. */
10531 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
10533 char *p = fixP->fx_where + fixP->fx_frag->fr_literal;
10534 valueT value = *valP;
10536 #if !defined (TE_Mach)
10537 if (fixP->fx_pcrel)
10539 switch (fixP->fx_r_type)
10545 fixP->fx_r_type = BFD_RELOC_64_PCREL;
10548 case BFD_RELOC_X86_64_32S:
10549 fixP->fx_r_type = BFD_RELOC_32_PCREL;
10552 fixP->fx_r_type = BFD_RELOC_16_PCREL;
10555 fixP->fx_r_type = BFD_RELOC_8_PCREL;
10560 if (fixP->fx_addsy != NULL
10561 && (fixP->fx_r_type == BFD_RELOC_32_PCREL
10562 || fixP->fx_r_type == BFD_RELOC_64_PCREL
10563 || fixP->fx_r_type == BFD_RELOC_16_PCREL
10564 || fixP->fx_r_type == BFD_RELOC_8_PCREL)
10565 && !use_rela_relocations)
10567 /* This is a hack. There should be a better way to handle this.
10568 This covers for the fact that bfd_install_relocation will
10569 subtract the current location (for partial_inplace, PC relative
10570 relocations); see more below. */
10574 || OUTPUT_FLAVOR == bfd_target_coff_flavour
10577 value += fixP->fx_where + fixP->fx_frag->fr_address;
10579 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10582 segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy);
10584 if ((sym_seg == seg
10585 || (symbol_section_p (fixP->fx_addsy)
10586 && sym_seg != absolute_section))
10587 && !generic_force_reloc (fixP))
10589 /* Yes, we add the values in twice. This is because
10590 bfd_install_relocation subtracts them out again. I think
10591 bfd_install_relocation is broken, but I don't dare change
10593 value += fixP->fx_where + fixP->fx_frag->fr_address;
10597 #if defined (OBJ_COFF) && defined (TE_PE)
10598 /* For some reason, the PE format does not store a
10599 section address offset for a PC relative symbol. */
10600 if (S_GET_SEGMENT (fixP->fx_addsy) != seg
10601 || S_IS_WEAK (fixP->fx_addsy))
10602 value += md_pcrel_from (fixP);
10605 #if defined (OBJ_COFF) && defined (TE_PE)
10606 if (fixP->fx_addsy != NULL
10607 && S_IS_WEAK (fixP->fx_addsy)
10608 /* PR 16858: Do not modify weak function references. */
10609 && ! fixP->fx_pcrel)
10611 #if !defined (TE_PEP)
10612 /* For x86 PE weak function symbols are neither PC-relative
10613 nor do they set S_IS_FUNCTION. So the only reliable way
10614 to detect them is to check the flags of their containing
10616 if (S_GET_SEGMENT (fixP->fx_addsy) != NULL
10617 && S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_CODE)
10621 value -= S_GET_VALUE (fixP->fx_addsy);
10625 /* Fix a few things - the dynamic linker expects certain values here,
10626 and we must not disappoint it. */
10627 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10628 if (IS_ELF && fixP->fx_addsy)
10629 switch (fixP->fx_r_type)
10631 case BFD_RELOC_386_PLT32:
10632 case BFD_RELOC_X86_64_PLT32:
10633 /* Make the jump instruction point to the address of the operand.
10634 At runtime we merely add the offset to the actual PLT entry.
10635 NB: Subtract the offset size only for jump instructions. */
10636 if (fixP->fx_pcrel)
10640 case BFD_RELOC_386_TLS_GD:
10641 case BFD_RELOC_386_TLS_LDM:
10642 case BFD_RELOC_386_TLS_IE_32:
10643 case BFD_RELOC_386_TLS_IE:
10644 case BFD_RELOC_386_TLS_GOTIE:
10645 case BFD_RELOC_386_TLS_GOTDESC:
10646 case BFD_RELOC_X86_64_TLSGD:
10647 case BFD_RELOC_X86_64_TLSLD:
10648 case BFD_RELOC_X86_64_GOTTPOFF:
10649 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
10650 value = 0; /* Fully resolved at runtime. No addend. */
10652 case BFD_RELOC_386_TLS_LE:
10653 case BFD_RELOC_386_TLS_LDO_32:
10654 case BFD_RELOC_386_TLS_LE_32:
10655 case BFD_RELOC_X86_64_DTPOFF32:
10656 case BFD_RELOC_X86_64_DTPOFF64:
10657 case BFD_RELOC_X86_64_TPOFF32:
10658 case BFD_RELOC_X86_64_TPOFF64:
10659 S_SET_THREAD_LOCAL (fixP->fx_addsy);
10662 case BFD_RELOC_386_TLS_DESC_CALL:
10663 case BFD_RELOC_X86_64_TLSDESC_CALL:
10664 value = 0; /* Fully resolved at runtime. No addend. */
10665 S_SET_THREAD_LOCAL (fixP->fx_addsy);
10669 case BFD_RELOC_VTABLE_INHERIT:
10670 case BFD_RELOC_VTABLE_ENTRY:
10677 #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */
10679 #endif /* !defined (TE_Mach) */
10681 /* Are we finished with this relocation now? */
10682 if (fixP->fx_addsy == NULL)
10684 #if defined (OBJ_COFF) && defined (TE_PE)
10685 else if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy))
10688 /* Remember value for tc_gen_reloc. */
10689 fixP->fx_addnumber = value;
10690 /* Clear out the frag for now. */
10694 else if (use_rela_relocations)
10696 fixP->fx_no_overflow = 1;
10697 /* Remember value for tc_gen_reloc. */
10698 fixP->fx_addnumber = value;
10702 md_number_to_chars (p, value, fixP->fx_size);
10706 md_atof (int type, char *litP, int *sizeP)
10708 /* This outputs the LITTLENUMs in REVERSE order;
10709 in accord with the bigendian 386. */
10710 return ieee_md_atof (type, litP, sizeP, FALSE);
10713 static char output_invalid_buf[sizeof (unsigned char) * 2 + 6];
10716 output_invalid (int c)
10719 snprintf (output_invalid_buf, sizeof (output_invalid_buf),
10722 snprintf (output_invalid_buf, sizeof (output_invalid_buf),
10723 "(0x%x)", (unsigned char) c);
10724 return output_invalid_buf;
10727 /* REG_STRING starts *before* REGISTER_PREFIX. */
10729 static const reg_entry *
10730 parse_real_register (char *reg_string, char **end_op)
10732 char *s = reg_string;
10734 char reg_name_given[MAX_REG_NAME_SIZE + 1];
10735 const reg_entry *r;
10737 /* Skip possible REGISTER_PREFIX and possible whitespace. */
10738 if (*s == REGISTER_PREFIX)
10741 if (is_space_char (*s))
10744 p = reg_name_given;
10745 while ((*p++ = register_chars[(unsigned char) *s]) != '\0')
10747 if (p >= reg_name_given + MAX_REG_NAME_SIZE)
10748 return (const reg_entry *) NULL;
10752 /* For naked regs, make sure that we are not dealing with an identifier.
10753 This prevents confusing an identifier like `eax_var' with register
10755 if (allow_naked_reg && identifier_chars[(unsigned char) *s])
10756 return (const reg_entry *) NULL;
10760 r = (const reg_entry *) hash_find (reg_hash, reg_name_given);
10762 /* Handle floating point regs, allowing spaces in the (i) part. */
10763 if (r == i386_regtab /* %st is first entry of table */)
10765 if (!cpu_arch_flags.bitfield.cpu8087
10766 && !cpu_arch_flags.bitfield.cpu287
10767 && !cpu_arch_flags.bitfield.cpu387)
10768 return (const reg_entry *) NULL;
10770 if (is_space_char (*s))
10775 if (is_space_char (*s))
10777 if (*s >= '0' && *s <= '7')
10779 int fpr = *s - '0';
10781 if (is_space_char (*s))
10786 r = (const reg_entry *) hash_find (reg_hash, "st(0)");
10791 /* We have "%st(" then garbage. */
10792 return (const reg_entry *) NULL;
10796 if (r == NULL || allow_pseudo_reg)
10799 if (operand_type_all_zero (&r->reg_type))
10800 return (const reg_entry *) NULL;
10802 if ((r->reg_type.bitfield.dword
10803 || r->reg_type.bitfield.sreg3
10804 || r->reg_type.bitfield.control
10805 || r->reg_type.bitfield.debug
10806 || r->reg_type.bitfield.test)
10807 && !cpu_arch_flags.bitfield.cpui386)
10808 return (const reg_entry *) NULL;
10810 if (r->reg_type.bitfield.regmmx && !cpu_arch_flags.bitfield.cpummx)
10811 return (const reg_entry *) NULL;
10813 if (!cpu_arch_flags.bitfield.cpuavx512f)
10815 if (r->reg_type.bitfield.zmmword || r->reg_type.bitfield.regmask)
10816 return (const reg_entry *) NULL;
10818 if (!cpu_arch_flags.bitfield.cpuavx)
10820 if (r->reg_type.bitfield.ymmword)
10821 return (const reg_entry *) NULL;
10823 if (!cpu_arch_flags.bitfield.cpusse && r->reg_type.bitfield.xmmword)
10824 return (const reg_entry *) NULL;
10828 if (r->reg_type.bitfield.regbnd && !cpu_arch_flags.bitfield.cpumpx)
10829 return (const reg_entry *) NULL;
10831 /* Don't allow fake index register unless allow_index_reg isn't 0. */
10832 if (!allow_index_reg && r->reg_num == RegIZ)
10833 return (const reg_entry *) NULL;
10835 /* Upper 16 vector registers are only available with VREX in 64bit
10836 mode, and require EVEX encoding. */
10837 if (r->reg_flags & RegVRex)
10839 if (!cpu_arch_flags.bitfield.cpuavx512f
10840 || flag_code != CODE_64BIT)
10841 return (const reg_entry *) NULL;
10843 i.vec_encoding = vex_encoding_evex;
10846 if (((r->reg_flags & (RegRex64 | RegRex)) || r->reg_type.bitfield.qword)
10847 && (!cpu_arch_flags.bitfield.cpulm || !r->reg_type.bitfield.control)
10848 && flag_code != CODE_64BIT)
10849 return (const reg_entry *) NULL;
10851 if (r->reg_type.bitfield.sreg3 && r->reg_num == RegFlat && !intel_syntax)
10852 return (const reg_entry *) NULL;
10857 /* REG_STRING starts *before* REGISTER_PREFIX. */
10859 static const reg_entry *
10860 parse_register (char *reg_string, char **end_op)
10862 const reg_entry *r;
10864 if (*reg_string == REGISTER_PREFIX || allow_naked_reg)
10865 r = parse_real_register (reg_string, end_op);
10870 char *save = input_line_pointer;
10874 input_line_pointer = reg_string;
10875 c = get_symbol_name (®_string);
10876 symbolP = symbol_find (reg_string);
10877 if (symbolP && S_GET_SEGMENT (symbolP) == reg_section)
10879 const expressionS *e = symbol_get_value_expression (symbolP);
10881 know (e->X_op == O_register);
10882 know (e->X_add_number >= 0
10883 && (valueT) e->X_add_number < i386_regtab_size);
10884 r = i386_regtab + e->X_add_number;
10885 if ((r->reg_flags & RegVRex))
10886 i.vec_encoding = vex_encoding_evex;
10887 *end_op = input_line_pointer;
10889 *input_line_pointer = c;
10890 input_line_pointer = save;
10896 i386_parse_name (char *name, expressionS *e, char *nextcharP)
10898 const reg_entry *r;
10899 char *end = input_line_pointer;
10902 r = parse_register (name, &input_line_pointer);
10903 if (r && end <= input_line_pointer)
10905 *nextcharP = *input_line_pointer;
10906 *input_line_pointer = 0;
10907 e->X_op = O_register;
10908 e->X_add_number = r - i386_regtab;
10911 input_line_pointer = end;
10913 return intel_syntax ? i386_intel_parse_name (name, e) : 0;
10917 md_operand (expressionS *e)
10920 const reg_entry *r;
10922 switch (*input_line_pointer)
10924 case REGISTER_PREFIX:
10925 r = parse_real_register (input_line_pointer, &end);
10928 e->X_op = O_register;
10929 e->X_add_number = r - i386_regtab;
10930 input_line_pointer = end;
10935 gas_assert (intel_syntax);
10936 end = input_line_pointer++;
10938 if (*input_line_pointer == ']')
10940 ++input_line_pointer;
10941 e->X_op_symbol = make_expr_symbol (e);
10942 e->X_add_symbol = NULL;
10943 e->X_add_number = 0;
10948 e->X_op = O_absent;
10949 input_line_pointer = end;
10956 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10957 const char *md_shortopts = "kVQ:sqnO::";
10959 const char *md_shortopts = "qnO::";
10962 #define OPTION_32 (OPTION_MD_BASE + 0)
10963 #define OPTION_64 (OPTION_MD_BASE + 1)
10964 #define OPTION_DIVIDE (OPTION_MD_BASE + 2)
10965 #define OPTION_MARCH (OPTION_MD_BASE + 3)
10966 #define OPTION_MTUNE (OPTION_MD_BASE + 4)
10967 #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5)
10968 #define OPTION_MSYNTAX (OPTION_MD_BASE + 6)
10969 #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7)
10970 #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8)
10971 #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9)
10972 #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10)
10973 #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11)
10974 #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12)
10975 #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13)
10976 #define OPTION_X32 (OPTION_MD_BASE + 14)
10977 #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15)
10978 #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16)
10979 #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17)
10980 #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18)
10981 #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19)
10982 #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20)
10983 #define OPTION_MSHARED (OPTION_MD_BASE + 21)
10984 #define OPTION_MAMD64 (OPTION_MD_BASE + 22)
10985 #define OPTION_MINTEL64 (OPTION_MD_BASE + 23)
10986 #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24)
10987 #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25)
10988 #define OPTION_MVEXWIG (OPTION_MD_BASE + 26)
10990 struct option md_longopts[] =
10992 {"32", no_argument, NULL, OPTION_32},
10993 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
10994 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
10995 {"64", no_argument, NULL, OPTION_64},
10997 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
10998 {"x32", no_argument, NULL, OPTION_X32},
10999 {"mshared", no_argument, NULL, OPTION_MSHARED},
11000 {"mx86-used-note", required_argument, NULL, OPTION_X86_USED_NOTE},
11002 {"divide", no_argument, NULL, OPTION_DIVIDE},
11003 {"march", required_argument, NULL, OPTION_MARCH},
11004 {"mtune", required_argument, NULL, OPTION_MTUNE},
11005 {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC},
11006 {"msyntax", required_argument, NULL, OPTION_MSYNTAX},
11007 {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG},
11008 {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG},
11009 {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX},
11010 {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK},
11011 {"moperand-check", required_argument, NULL, OPTION_MOPERAND_CHECK},
11012 {"mavxscalar", required_argument, NULL, OPTION_MAVXSCALAR},
11013 {"mvexwig", required_argument, NULL, OPTION_MVEXWIG},
11014 {"madd-bnd-prefix", no_argument, NULL, OPTION_MADD_BND_PREFIX},
11015 {"mevexlig", required_argument, NULL, OPTION_MEVEXLIG},
11016 {"mevexwig", required_argument, NULL, OPTION_MEVEXWIG},
11017 # if defined (TE_PE) || defined (TE_PEP)
11018 {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ},
11020 {"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX},
11021 {"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD},
11022 {"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS},
11023 {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG},
11024 {"mamd64", no_argument, NULL, OPTION_MAMD64},
11025 {"mintel64", no_argument, NULL, OPTION_MINTEL64},
11026 {NULL, no_argument, NULL, 0}
11028 size_t md_longopts_size = sizeof (md_longopts);
11031 md_parse_option (int c, const char *arg)
11034 char *arch, *next, *saved;
11039 optimize_align_code = 0;
11043 quiet_warnings = 1;
11046 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11047 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
11048 should be emitted or not. FIXME: Not implemented. */
11052 /* -V: SVR4 argument to print version ID. */
11054 print_version_id ();
11057 /* -k: Ignore for FreeBSD compatibility. */
11062 /* -s: On i386 Solaris, this tells the native assembler to use
11063 .stab instead of .stab.excl. We always use .stab anyhow. */
11066 case OPTION_MSHARED:
11070 case OPTION_X86_USED_NOTE:
11071 if (strcasecmp (arg, "yes") == 0)
11073 else if (strcasecmp (arg, "no") == 0)
11076 as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg);
11081 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
11082 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
11085 const char **list, **l;
11087 list = bfd_target_list ();
11088 for (l = list; *l != NULL; l++)
11089 if (CONST_STRNEQ (*l, "elf64-x86-64")
11090 || strcmp (*l, "coff-x86-64") == 0
11091 || strcmp (*l, "pe-x86-64") == 0
11092 || strcmp (*l, "pei-x86-64") == 0
11093 || strcmp (*l, "mach-o-x86-64") == 0)
11095 default_arch = "x86_64";
11099 as_fatal (_("no compiled in support for x86_64"));
11105 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11109 const char **list, **l;
11111 list = bfd_target_list ();
11112 for (l = list; *l != NULL; l++)
11113 if (CONST_STRNEQ (*l, "elf32-x86-64"))
11115 default_arch = "x86_64:32";
11119 as_fatal (_("no compiled in support for 32bit x86_64"));
11123 as_fatal (_("32bit x86_64 is only supported for ELF"));
11128 default_arch = "i386";
11131 case OPTION_DIVIDE:
11132 #ifdef SVR4_COMMENT_CHARS
11137 n = XNEWVEC (char, strlen (i386_comment_chars) + 1);
11139 for (s = i386_comment_chars; *s != '\0'; s++)
11143 i386_comment_chars = n;
11149 saved = xstrdup (arg);
11151 /* Allow -march=+nosse. */
11157 as_fatal (_("invalid -march= option: `%s'"), arg);
11158 next = strchr (arch, '+');
11161 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
11163 if (strcmp (arch, cpu_arch [j].name) == 0)
11166 if (! cpu_arch[j].flags.bitfield.cpui386)
11169 cpu_arch_name = cpu_arch[j].name;
11170 cpu_sub_arch_name = NULL;
11171 cpu_arch_flags = cpu_arch[j].flags;
11172 cpu_arch_isa = cpu_arch[j].type;
11173 cpu_arch_isa_flags = cpu_arch[j].flags;
11174 if (!cpu_arch_tune_set)
11176 cpu_arch_tune = cpu_arch_isa;
11177 cpu_arch_tune_flags = cpu_arch_isa_flags;
11181 else if (*cpu_arch [j].name == '.'
11182 && strcmp (arch, cpu_arch [j].name + 1) == 0)
11184 /* ISA extension. */
11185 i386_cpu_flags flags;
11187 flags = cpu_flags_or (cpu_arch_flags,
11188 cpu_arch[j].flags);
11190 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
11192 if (cpu_sub_arch_name)
11194 char *name = cpu_sub_arch_name;
11195 cpu_sub_arch_name = concat (name,
11197 (const char *) NULL);
11201 cpu_sub_arch_name = xstrdup (cpu_arch[j].name);
11202 cpu_arch_flags = flags;
11203 cpu_arch_isa_flags = flags;
11207 = cpu_flags_or (cpu_arch_isa_flags,
11208 cpu_arch[j].flags);
11213 if (j >= ARRAY_SIZE (cpu_arch))
11215 /* Disable an ISA extension. */
11216 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
11217 if (strcmp (arch, cpu_noarch [j].name) == 0)
11219 i386_cpu_flags flags;
11221 flags = cpu_flags_and_not (cpu_arch_flags,
11222 cpu_noarch[j].flags);
11223 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
11225 if (cpu_sub_arch_name)
11227 char *name = cpu_sub_arch_name;
11228 cpu_sub_arch_name = concat (arch,
11229 (const char *) NULL);
11233 cpu_sub_arch_name = xstrdup (arch);
11234 cpu_arch_flags = flags;
11235 cpu_arch_isa_flags = flags;
11240 if (j >= ARRAY_SIZE (cpu_noarch))
11241 j = ARRAY_SIZE (cpu_arch);
11244 if (j >= ARRAY_SIZE (cpu_arch))
11245 as_fatal (_("invalid -march= option: `%s'"), arg);
11249 while (next != NULL);
11255 as_fatal (_("invalid -mtune= option: `%s'"), arg);
11256 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
11258 if (strcmp (arg, cpu_arch [j].name) == 0)
11260 cpu_arch_tune_set = 1;
11261 cpu_arch_tune = cpu_arch [j].type;
11262 cpu_arch_tune_flags = cpu_arch[j].flags;
11266 if (j >= ARRAY_SIZE (cpu_arch))
11267 as_fatal (_("invalid -mtune= option: `%s'"), arg);
11270 case OPTION_MMNEMONIC:
11271 if (strcasecmp (arg, "att") == 0)
11272 intel_mnemonic = 0;
11273 else if (strcasecmp (arg, "intel") == 0)
11274 intel_mnemonic = 1;
11276 as_fatal (_("invalid -mmnemonic= option: `%s'"), arg);
11279 case OPTION_MSYNTAX:
11280 if (strcasecmp (arg, "att") == 0)
11282 else if (strcasecmp (arg, "intel") == 0)
11285 as_fatal (_("invalid -msyntax= option: `%s'"), arg);
11288 case OPTION_MINDEX_REG:
11289 allow_index_reg = 1;
11292 case OPTION_MNAKED_REG:
11293 allow_naked_reg = 1;
11296 case OPTION_MSSE2AVX:
11300 case OPTION_MSSE_CHECK:
11301 if (strcasecmp (arg, "error") == 0)
11302 sse_check = check_error;
11303 else if (strcasecmp (arg, "warning") == 0)
11304 sse_check = check_warning;
11305 else if (strcasecmp (arg, "none") == 0)
11306 sse_check = check_none;
11308 as_fatal (_("invalid -msse-check= option: `%s'"), arg);
11311 case OPTION_MOPERAND_CHECK:
11312 if (strcasecmp (arg, "error") == 0)
11313 operand_check = check_error;
11314 else if (strcasecmp (arg, "warning") == 0)
11315 operand_check = check_warning;
11316 else if (strcasecmp (arg, "none") == 0)
11317 operand_check = check_none;
11319 as_fatal (_("invalid -moperand-check= option: `%s'"), arg);
11322 case OPTION_MAVXSCALAR:
11323 if (strcasecmp (arg, "128") == 0)
11324 avxscalar = vex128;
11325 else if (strcasecmp (arg, "256") == 0)
11326 avxscalar = vex256;
11328 as_fatal (_("invalid -mavxscalar= option: `%s'"), arg);
11331 case OPTION_MVEXWIG:
11332 if (strcmp (arg, "0") == 0)
11334 else if (strcmp (arg, "1") == 0)
11337 as_fatal (_("invalid -mvexwig= option: `%s'"), arg);
11340 case OPTION_MADD_BND_PREFIX:
11341 add_bnd_prefix = 1;
11344 case OPTION_MEVEXLIG:
11345 if (strcmp (arg, "128") == 0)
11346 evexlig = evexl128;
11347 else if (strcmp (arg, "256") == 0)
11348 evexlig = evexl256;
11349 else if (strcmp (arg, "512") == 0)
11350 evexlig = evexl512;
11352 as_fatal (_("invalid -mevexlig= option: `%s'"), arg);
11355 case OPTION_MEVEXRCIG:
11356 if (strcmp (arg, "rne") == 0)
11358 else if (strcmp (arg, "rd") == 0)
11360 else if (strcmp (arg, "ru") == 0)
11362 else if (strcmp (arg, "rz") == 0)
11365 as_fatal (_("invalid -mevexrcig= option: `%s'"), arg);
11368 case OPTION_MEVEXWIG:
11369 if (strcmp (arg, "0") == 0)
11371 else if (strcmp (arg, "1") == 0)
11374 as_fatal (_("invalid -mevexwig= option: `%s'"), arg);
11377 # if defined (TE_PE) || defined (TE_PEP)
11378 case OPTION_MBIG_OBJ:
11383 case OPTION_MOMIT_LOCK_PREFIX:
11384 if (strcasecmp (arg, "yes") == 0)
11385 omit_lock_prefix = 1;
11386 else if (strcasecmp (arg, "no") == 0)
11387 omit_lock_prefix = 0;
11389 as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg);
11392 case OPTION_MFENCE_AS_LOCK_ADD:
11393 if (strcasecmp (arg, "yes") == 0)
11395 else if (strcasecmp (arg, "no") == 0)
11398 as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg);
11401 case OPTION_MRELAX_RELOCATIONS:
11402 if (strcasecmp (arg, "yes") == 0)
11403 generate_relax_relocations = 1;
11404 else if (strcasecmp (arg, "no") == 0)
11405 generate_relax_relocations = 0;
11407 as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg);
11410 case OPTION_MAMD64:
11414 case OPTION_MINTEL64:
11422 /* Turn off -Os. */
11423 optimize_for_space = 0;
11425 else if (*arg == 's')
11427 optimize_for_space = 1;
11428 /* Turn on all encoding optimizations. */
11429 optimize = INT_MAX;
11433 optimize = atoi (arg);
11434 /* Turn off -Os. */
11435 optimize_for_space = 0;
11445 #define MESSAGE_TEMPLATE \
11449 output_message (FILE *stream, char *p, char *message, char *start,
11450 int *left_p, const char *name, int len)
11452 int size = sizeof (MESSAGE_TEMPLATE);
11453 int left = *left_p;
11455 /* Reserve 2 spaces for ", " or ",\0" */
11458 /* Check if there is any room. */
11466 p = mempcpy (p, name, len);
11470 /* Output the current message now and start a new one. */
11473 fprintf (stream, "%s\n", message);
11475 left = size - (start - message) - len - 2;
11477 gas_assert (left >= 0);
11479 p = mempcpy (p, name, len);
11487 show_arch (FILE *stream, int ext, int check)
11489 static char message[] = MESSAGE_TEMPLATE;
11490 char *start = message + 27;
11492 int size = sizeof (MESSAGE_TEMPLATE);
11499 left = size - (start - message);
11500 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
11502 /* Should it be skipped? */
11503 if (cpu_arch [j].skip)
11506 name = cpu_arch [j].name;
11507 len = cpu_arch [j].len;
11510 /* It is an extension. Skip if we aren't asked to show it. */
11521 /* It is an processor. Skip if we show only extension. */
11524 else if (check && ! cpu_arch[j].flags.bitfield.cpui386)
11526 /* It is an impossible processor - skip. */
11530 p = output_message (stream, p, message, start, &left, name, len);
11533 /* Display disabled extensions. */
11535 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
11537 name = cpu_noarch [j].name;
11538 len = cpu_noarch [j].len;
11539 p = output_message (stream, p, message, start, &left, name,
11544 fprintf (stream, "%s\n", message);
11548 md_show_usage (FILE *stream)
11550 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11551 fprintf (stream, _("\
11553 -V print assembler version number\n\
11556 fprintf (stream, _("\
11557 -n Do not optimize code alignment\n\
11558 -q quieten some warnings\n"));
11559 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11560 fprintf (stream, _("\
11563 #if defined BFD64 && (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
11564 || defined (TE_PE) || defined (TE_PEP))
11565 fprintf (stream, _("\
11566 --32/--64/--x32 generate 32bit/64bit/x32 code\n"));
11568 #ifdef SVR4_COMMENT_CHARS
11569 fprintf (stream, _("\
11570 --divide do not treat `/' as a comment character\n"));
11572 fprintf (stream, _("\
11573 --divide ignored\n"));
11575 fprintf (stream, _("\
11576 -march=CPU[,+EXTENSION...]\n\
11577 generate code for CPU and EXTENSION, CPU is one of:\n"));
11578 show_arch (stream, 0, 1);
11579 fprintf (stream, _("\
11580 EXTENSION is combination of:\n"));
11581 show_arch (stream, 1, 0);
11582 fprintf (stream, _("\
11583 -mtune=CPU optimize for CPU, CPU is one of:\n"));
11584 show_arch (stream, 0, 0);
11585 fprintf (stream, _("\
11586 -msse2avx encode SSE instructions with VEX prefix\n"));
11587 fprintf (stream, _("\
11588 -msse-check=[none|error|warning] (default: warning)\n\
11589 check SSE instructions\n"));
11590 fprintf (stream, _("\
11591 -moperand-check=[none|error|warning] (default: warning)\n\
11592 check operand combinations for validity\n"));
11593 fprintf (stream, _("\
11594 -mavxscalar=[128|256] (default: 128)\n\
11595 encode scalar AVX instructions with specific vector\n\
11597 fprintf (stream, _("\
11598 -mvexwig=[0|1] (default: 0)\n\
11599 encode VEX instructions with specific VEX.W value\n\
11600 for VEX.W bit ignored instructions\n"));
11601 fprintf (stream, _("\
11602 -mevexlig=[128|256|512] (default: 128)\n\
11603 encode scalar EVEX instructions with specific vector\n\
11605 fprintf (stream, _("\
11606 -mevexwig=[0|1] (default: 0)\n\
11607 encode EVEX instructions with specific EVEX.W value\n\
11608 for EVEX.W bit ignored instructions\n"));
11609 fprintf (stream, _("\
11610 -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\
11611 encode EVEX instructions with specific EVEX.RC value\n\
11612 for SAE-only ignored instructions\n"));
11613 fprintf (stream, _("\
11614 -mmnemonic=[att|intel] "));
11615 if (SYSV386_COMPAT)
11616 fprintf (stream, _("(default: att)\n"));
11618 fprintf (stream, _("(default: intel)\n"));
11619 fprintf (stream, _("\
11620 use AT&T/Intel mnemonic\n"));
11621 fprintf (stream, _("\
11622 -msyntax=[att|intel] (default: att)\n\
11623 use AT&T/Intel syntax\n"));
11624 fprintf (stream, _("\
11625 -mindex-reg support pseudo index registers\n"));
11626 fprintf (stream, _("\
11627 -mnaked-reg don't require `%%' prefix for registers\n"));
11628 fprintf (stream, _("\
11629 -madd-bnd-prefix add BND prefix for all valid branches\n"));
11630 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11631 fprintf (stream, _("\
11632 -mshared disable branch optimization for shared code\n"));
11633 fprintf (stream, _("\
11634 -mx86-used-note=[no|yes] "));
11635 if (DEFAULT_X86_USED_NOTE)
11636 fprintf (stream, _("(default: yes)\n"));
11638 fprintf (stream, _("(default: no)\n"));
11639 fprintf (stream, _("\
11640 generate x86 used ISA and feature properties\n"));
11642 #if defined (TE_PE) || defined (TE_PEP)
11643 fprintf (stream, _("\
11644 -mbig-obj generate big object files\n"));
11646 fprintf (stream, _("\
11647 -momit-lock-prefix=[no|yes] (default: no)\n\
11648 strip all lock prefixes\n"));
11649 fprintf (stream, _("\
11650 -mfence-as-lock-add=[no|yes] (default: no)\n\
11651 encode lfence, mfence and sfence as\n\
11652 lock addl $0x0, (%%{re}sp)\n"));
11653 fprintf (stream, _("\
11654 -mrelax-relocations=[no|yes] "));
11655 if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS)
11656 fprintf (stream, _("(default: yes)\n"));
11658 fprintf (stream, _("(default: no)\n"));
11659 fprintf (stream, _("\
11660 generate relax relocations\n"));
11661 fprintf (stream, _("\
11662 -mamd64 accept only AMD64 ISA [default]\n"));
11663 fprintf (stream, _("\
11664 -mintel64 accept only Intel64 ISA\n"));
11667 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
11668 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
11669 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
11671 /* Pick the target format to use. */
11674 i386_target_format (void)
11676 if (!strncmp (default_arch, "x86_64", 6))
11678 update_code_flag (CODE_64BIT, 1);
11679 if (default_arch[6] == '\0')
11680 x86_elf_abi = X86_64_ABI;
11682 x86_elf_abi = X86_64_X32_ABI;
11684 else if (!strcmp (default_arch, "i386"))
11685 update_code_flag (CODE_32BIT, 1);
11686 else if (!strcmp (default_arch, "iamcu"))
11688 update_code_flag (CODE_32BIT, 1);
11689 if (cpu_arch_isa == PROCESSOR_UNKNOWN)
11691 static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS;
11692 cpu_arch_name = "iamcu";
11693 cpu_sub_arch_name = NULL;
11694 cpu_arch_flags = iamcu_flags;
11695 cpu_arch_isa = PROCESSOR_IAMCU;
11696 cpu_arch_isa_flags = iamcu_flags;
11697 if (!cpu_arch_tune_set)
11699 cpu_arch_tune = cpu_arch_isa;
11700 cpu_arch_tune_flags = cpu_arch_isa_flags;
11703 else if (cpu_arch_isa != PROCESSOR_IAMCU)
11704 as_fatal (_("Intel MCU doesn't support `%s' architecture"),
11708 as_fatal (_("unknown architecture"));
11710 if (cpu_flags_all_zero (&cpu_arch_isa_flags))
11711 cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].flags;
11712 if (cpu_flags_all_zero (&cpu_arch_tune_flags))
11713 cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].flags;
11715 switch (OUTPUT_FLAVOR)
11717 #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT)
11718 case bfd_target_aout_flavour:
11719 return AOUT_TARGET_FORMAT;
11721 #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF)
11722 # if defined (TE_PE) || defined (TE_PEP)
11723 case bfd_target_coff_flavour:
11724 if (flag_code == CODE_64BIT)
11725 return use_big_obj ? "pe-bigobj-x86-64" : "pe-x86-64";
11728 # elif defined (TE_GO32)
11729 case bfd_target_coff_flavour:
11730 return "coff-go32";
11732 case bfd_target_coff_flavour:
11733 return "coff-i386";
11736 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
11737 case bfd_target_elf_flavour:
11739 const char *format;
11741 switch (x86_elf_abi)
11744 format = ELF_TARGET_FORMAT;
11747 use_rela_relocations = 1;
11749 format = ELF_TARGET_FORMAT64;
11751 case X86_64_X32_ABI:
11752 use_rela_relocations = 1;
11754 disallow_64bit_reloc = 1;
11755 format = ELF_TARGET_FORMAT32;
11758 if (cpu_arch_isa == PROCESSOR_L1OM)
11760 if (x86_elf_abi != X86_64_ABI)
11761 as_fatal (_("Intel L1OM is 64bit only"));
11762 return ELF_TARGET_L1OM_FORMAT;
11764 else if (cpu_arch_isa == PROCESSOR_K1OM)
11766 if (x86_elf_abi != X86_64_ABI)
11767 as_fatal (_("Intel K1OM is 64bit only"));
11768 return ELF_TARGET_K1OM_FORMAT;
11770 else if (cpu_arch_isa == PROCESSOR_IAMCU)
11772 if (x86_elf_abi != I386_ABI)
11773 as_fatal (_("Intel MCU is 32bit only"));
11774 return ELF_TARGET_IAMCU_FORMAT;
11780 #if defined (OBJ_MACH_O)
11781 case bfd_target_mach_o_flavour:
11782 if (flag_code == CODE_64BIT)
11784 use_rela_relocations = 1;
11786 return "mach-o-x86-64";
11789 return "mach-o-i386";
11797 #endif /* OBJ_MAYBE_ more than one */
11800 md_undefined_symbol (char *name)
11802 if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0]
11803 && name[1] == GLOBAL_OFFSET_TABLE_NAME[1]
11804 && name[2] == GLOBAL_OFFSET_TABLE_NAME[2]
11805 && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)
11809 if (symbol_find (name))
11810 as_bad (_("GOT already in symbol table"));
11811 GOT_symbol = symbol_new (name, undefined_section,
11812 (valueT) 0, &zero_address_frag);
11819 /* Round up a section size to the appropriate boundary. */
11822 md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size)
11824 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
11825 if (OUTPUT_FLAVOR == bfd_target_aout_flavour)
11827 /* For a.out, force the section size to be aligned. If we don't do
11828 this, BFD will align it for us, but it will not write out the
11829 final bytes of the section. This may be a bug in BFD, but it is
11830 easier to fix it here since that is how the other a.out targets
11834 align = bfd_get_section_alignment (stdoutput, segment);
11835 size = ((size + (1 << align) - 1) & (-((valueT) 1 << align)));
11842 /* On the i386, PC-relative offsets are relative to the start of the
11843 next instruction. That is, the address of the offset, plus its
11844 size, since the offset is always the last part of the insn. */
11847 md_pcrel_from (fixS *fixP)
11849 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
11855 s_bss (int ignore ATTRIBUTE_UNUSED)
11859 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11861 obj_elf_section_change_hook ();
11863 temp = get_absolute_expression ();
11864 subseg_set (bss_section, (subsegT) temp);
11865 demand_empty_rest_of_line ();
11871 i386_validate_fix (fixS *fixp)
11873 if (fixp->fx_subsy)
11875 if (fixp->fx_subsy == GOT_symbol)
11877 if (fixp->fx_r_type == BFD_RELOC_32_PCREL)
11881 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11882 if (fixp->fx_tcbit2)
11883 fixp->fx_r_type = (fixp->fx_tcbit
11884 ? BFD_RELOC_X86_64_REX_GOTPCRELX
11885 : BFD_RELOC_X86_64_GOTPCRELX);
11888 fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL;
11893 fixp->fx_r_type = BFD_RELOC_386_GOTOFF;
11895 fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64;
11897 fixp->fx_subsy = 0;
11900 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11901 else if (!object_64bit)
11903 if (fixp->fx_r_type == BFD_RELOC_386_GOT32
11904 && fixp->fx_tcbit2)
11905 fixp->fx_r_type = BFD_RELOC_386_GOT32X;
11911 tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
11914 bfd_reloc_code_real_type code;
11916 switch (fixp->fx_r_type)
11918 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11919 case BFD_RELOC_SIZE32:
11920 case BFD_RELOC_SIZE64:
11921 if (S_IS_DEFINED (fixp->fx_addsy)
11922 && !S_IS_EXTERNAL (fixp->fx_addsy))
11924 /* Resolve size relocation against local symbol to size of
11925 the symbol plus addend. */
11926 valueT value = S_GET_SIZE (fixp->fx_addsy) + fixp->fx_offset;
11927 if (fixp->fx_r_type == BFD_RELOC_SIZE32
11928 && !fits_in_unsigned_long (value))
11929 as_bad_where (fixp->fx_file, fixp->fx_line,
11930 _("symbol size computation overflow"));
11931 fixp->fx_addsy = NULL;
11932 fixp->fx_subsy = NULL;
11933 md_apply_fix (fixp, (valueT *) &value, NULL);
11937 /* Fall through. */
11939 case BFD_RELOC_X86_64_PLT32:
11940 case BFD_RELOC_X86_64_GOT32:
11941 case BFD_RELOC_X86_64_GOTPCREL:
11942 case BFD_RELOC_X86_64_GOTPCRELX:
11943 case BFD_RELOC_X86_64_REX_GOTPCRELX:
11944 case BFD_RELOC_386_PLT32:
11945 case BFD_RELOC_386_GOT32:
11946 case BFD_RELOC_386_GOT32X:
11947 case BFD_RELOC_386_GOTOFF:
11948 case BFD_RELOC_386_GOTPC:
11949 case BFD_RELOC_386_TLS_GD:
11950 case BFD_RELOC_386_TLS_LDM:
11951 case BFD_RELOC_386_TLS_LDO_32:
11952 case BFD_RELOC_386_TLS_IE_32:
11953 case BFD_RELOC_386_TLS_IE:
11954 case BFD_RELOC_386_TLS_GOTIE:
11955 case BFD_RELOC_386_TLS_LE_32:
11956 case BFD_RELOC_386_TLS_LE:
11957 case BFD_RELOC_386_TLS_GOTDESC:
11958 case BFD_RELOC_386_TLS_DESC_CALL:
11959 case BFD_RELOC_X86_64_TLSGD:
11960 case BFD_RELOC_X86_64_TLSLD:
11961 case BFD_RELOC_X86_64_DTPOFF32:
11962 case BFD_RELOC_X86_64_DTPOFF64:
11963 case BFD_RELOC_X86_64_GOTTPOFF:
11964 case BFD_RELOC_X86_64_TPOFF32:
11965 case BFD_RELOC_X86_64_TPOFF64:
11966 case BFD_RELOC_X86_64_GOTOFF64:
11967 case BFD_RELOC_X86_64_GOTPC32:
11968 case BFD_RELOC_X86_64_GOT64:
11969 case BFD_RELOC_X86_64_GOTPCREL64:
11970 case BFD_RELOC_X86_64_GOTPC64:
11971 case BFD_RELOC_X86_64_GOTPLT64:
11972 case BFD_RELOC_X86_64_PLTOFF64:
11973 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
11974 case BFD_RELOC_X86_64_TLSDESC_CALL:
11975 case BFD_RELOC_RVA:
11976 case BFD_RELOC_VTABLE_ENTRY:
11977 case BFD_RELOC_VTABLE_INHERIT:
11979 case BFD_RELOC_32_SECREL:
11981 code = fixp->fx_r_type;
11983 case BFD_RELOC_X86_64_32S:
11984 if (!fixp->fx_pcrel)
11986 /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */
11987 code = fixp->fx_r_type;
11990 /* Fall through. */
11992 if (fixp->fx_pcrel)
11994 switch (fixp->fx_size)
11997 as_bad_where (fixp->fx_file, fixp->fx_line,
11998 _("can not do %d byte pc-relative relocation"),
12000 code = BFD_RELOC_32_PCREL;
12002 case 1: code = BFD_RELOC_8_PCREL; break;
12003 case 2: code = BFD_RELOC_16_PCREL; break;
12004 case 4: code = BFD_RELOC_32_PCREL; break;
12006 case 8: code = BFD_RELOC_64_PCREL; break;
12012 switch (fixp->fx_size)
12015 as_bad_where (fixp->fx_file, fixp->fx_line,
12016 _("can not do %d byte relocation"),
12018 code = BFD_RELOC_32;
12020 case 1: code = BFD_RELOC_8; break;
12021 case 2: code = BFD_RELOC_16; break;
12022 case 4: code = BFD_RELOC_32; break;
12024 case 8: code = BFD_RELOC_64; break;
12031 if ((code == BFD_RELOC_32
12032 || code == BFD_RELOC_32_PCREL
12033 || code == BFD_RELOC_X86_64_32S)
12035 && fixp->fx_addsy == GOT_symbol)
12038 code = BFD_RELOC_386_GOTPC;
12040 code = BFD_RELOC_X86_64_GOTPC32;
12042 if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL)
12044 && fixp->fx_addsy == GOT_symbol)
12046 code = BFD_RELOC_X86_64_GOTPC64;
12049 rel = XNEW (arelent);
12050 rel->sym_ptr_ptr = XNEW (asymbol *);
12051 *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
12053 rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
12055 if (!use_rela_relocations)
12057 /* HACK: Since i386 ELF uses Rel instead of Rela, encode the
12058 vtable entry to be used in the relocation's section offset. */
12059 if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
12060 rel->address = fixp->fx_offset;
12061 #if defined (OBJ_COFF) && defined (TE_PE)
12062 else if (fixp->fx_addsy && S_IS_WEAK (fixp->fx_addsy))
12063 rel->addend = fixp->fx_addnumber - (S_GET_VALUE (fixp->fx_addsy) * 2);
12068 /* Use the rela in 64bit mode. */
12071 if (disallow_64bit_reloc)
12074 case BFD_RELOC_X86_64_DTPOFF64:
12075 case BFD_RELOC_X86_64_TPOFF64:
12076 case BFD_RELOC_64_PCREL:
12077 case BFD_RELOC_X86_64_GOTOFF64:
12078 case BFD_RELOC_X86_64_GOT64:
12079 case BFD_RELOC_X86_64_GOTPCREL64:
12080 case BFD_RELOC_X86_64_GOTPC64:
12081 case BFD_RELOC_X86_64_GOTPLT64:
12082 case BFD_RELOC_X86_64_PLTOFF64:
12083 as_bad_where (fixp->fx_file, fixp->fx_line,
12084 _("cannot represent relocation type %s in x32 mode"),
12085 bfd_get_reloc_code_name (code));
12091 if (!fixp->fx_pcrel)
12092 rel->addend = fixp->fx_offset;
12096 case BFD_RELOC_X86_64_PLT32:
12097 case BFD_RELOC_X86_64_GOT32:
12098 case BFD_RELOC_X86_64_GOTPCREL:
12099 case BFD_RELOC_X86_64_GOTPCRELX:
12100 case BFD_RELOC_X86_64_REX_GOTPCRELX:
12101 case BFD_RELOC_X86_64_TLSGD:
12102 case BFD_RELOC_X86_64_TLSLD:
12103 case BFD_RELOC_X86_64_GOTTPOFF:
12104 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
12105 case BFD_RELOC_X86_64_TLSDESC_CALL:
12106 rel->addend = fixp->fx_offset - fixp->fx_size;
12109 rel->addend = (section->vma
12111 + fixp->fx_addnumber
12112 + md_pcrel_from (fixp));
12117 rel->howto = bfd_reloc_type_lookup (stdoutput, code);
12118 if (rel->howto == NULL)
12120 as_bad_where (fixp->fx_file, fixp->fx_line,
12121 _("cannot represent relocation type %s"),
12122 bfd_get_reloc_code_name (code));
12123 /* Set howto to a garbage value so that we can keep going. */
12124 rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);
12125 gas_assert (rel->howto != NULL);
12131 #include "tc-i386-intel.c"
12134 tc_x86_parse_to_dw2regnum (expressionS *exp)
12136 int saved_naked_reg;
12137 char saved_register_dot;
12139 saved_naked_reg = allow_naked_reg;
12140 allow_naked_reg = 1;
12141 saved_register_dot = register_chars['.'];
12142 register_chars['.'] = '.';
12143 allow_pseudo_reg = 1;
12144 expression_and_evaluate (exp);
12145 allow_pseudo_reg = 0;
12146 register_chars['.'] = saved_register_dot;
12147 allow_naked_reg = saved_naked_reg;
12149 if (exp->X_op == O_register && exp->X_add_number >= 0)
12151 if ((addressT) exp->X_add_number < i386_regtab_size)
12153 exp->X_op = O_constant;
12154 exp->X_add_number = i386_regtab[exp->X_add_number]
12155 .dw2_regnum[flag_code >> 1];
12158 exp->X_op = O_illegal;
12163 tc_x86_frame_initial_instructions (void)
12165 static unsigned int sp_regno[2];
12167 if (!sp_regno[flag_code >> 1])
12169 char *saved_input = input_line_pointer;
12170 char sp[][4] = {"esp", "rsp"};
12173 input_line_pointer = sp[flag_code >> 1];
12174 tc_x86_parse_to_dw2regnum (&exp);
12175 gas_assert (exp.X_op == O_constant);
12176 sp_regno[flag_code >> 1] = exp.X_add_number;
12177 input_line_pointer = saved_input;
12180 cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment);
12181 cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment);
12185 x86_dwarf2_addr_size (void)
12187 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
12188 if (x86_elf_abi == X86_64_X32_ABI)
12191 return bfd_arch_bits_per_address (stdoutput) / 8;
12195 i386_elf_section_type (const char *str, size_t len)
12197 if (flag_code == CODE_64BIT
12198 && len == sizeof ("unwind") - 1
12199 && strncmp (str, "unwind", 6) == 0)
12200 return SHT_X86_64_UNWIND;
12207 i386_solaris_fix_up_eh_frame (segT sec)
12209 if (flag_code == CODE_64BIT)
12210 elf_section_type (sec) = SHT_X86_64_UNWIND;
12216 tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size)
12220 exp.X_op = O_secrel;
12221 exp.X_add_symbol = symbol;
12222 exp.X_add_number = 0;
12223 emit_expr (&exp, size);
12227 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12228 /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */
12231 x86_64_section_letter (int letter, const char **ptr_msg)
12233 if (flag_code == CODE_64BIT)
12236 return SHF_X86_64_LARGE;
12238 *ptr_msg = _("bad .section directive: want a,l,w,x,M,S,G,T in string");
12241 *ptr_msg = _("bad .section directive: want a,w,x,M,S,G,T in string");
12246 x86_64_section_word (char *str, size_t len)
12248 if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large"))
12249 return SHF_X86_64_LARGE;
12255 handle_large_common (int small ATTRIBUTE_UNUSED)
12257 if (flag_code != CODE_64BIT)
12259 s_comm_internal (0, elf_common_parse);
12260 as_warn (_(".largecomm supported only in 64bit mode, producing .comm"));
12264 static segT lbss_section;
12265 asection *saved_com_section_ptr = elf_com_section_ptr;
12266 asection *saved_bss_section = bss_section;
12268 if (lbss_section == NULL)
12270 flagword applicable;
12271 segT seg = now_seg;
12272 subsegT subseg = now_subseg;
12274 /* The .lbss section is for local .largecomm symbols. */
12275 lbss_section = subseg_new (".lbss", 0);
12276 applicable = bfd_applicable_section_flags (stdoutput);
12277 bfd_set_section_flags (stdoutput, lbss_section,
12278 applicable & SEC_ALLOC);
12279 seg_info (lbss_section)->bss = 1;
12281 subseg_set (seg, subseg);
12284 elf_com_section_ptr = &_bfd_elf_large_com_section;
12285 bss_section = lbss_section;
12287 s_comm_internal (0, elf_common_parse);
12289 elf_com_section_ptr = saved_com_section_ptr;
12290 bss_section = saved_bss_section;
12293 #endif /* OBJ_ELF || OBJ_MAYBE_ELF */