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- /* tc-i386.h -- Header file for tc-i386.c
- Copyright (C) 1989-2022 Free Software Foundation, Inc.
- This file is part of GAS, the GNU Assembler.
- GAS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3, or (at your option)
- any later version.
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
- 02110-1301, USA. */
- #ifndef TC_I386
- #define TC_I386 1
- #include "opcodes/i386-opc.h"
- struct fix;
- #define TARGET_BYTES_BIG_ENDIAN 0
- #define TARGET_ARCH (i386_arch ())
- #define TARGET_MACH (i386_mach ())
- extern enum bfd_architecture i386_arch (void);
- extern unsigned long i386_mach (void);
- #ifdef TE_FreeBSD
- #define AOUT_TARGET_FORMAT "a.out-i386-freebsd"
- #endif
- #ifdef TE_NetBSD
- #define AOUT_TARGET_FORMAT "a.out-i386-netbsd"
- #endif
- #ifdef TE_386BSD
- #define AOUT_TARGET_FORMAT "a.out-i386-bsd"
- #endif
- #ifdef TE_LINUX
- #define AOUT_TARGET_FORMAT "a.out-i386-linux"
- #endif
- #ifdef TE_Mach
- #define AOUT_TARGET_FORMAT "a.out-mach3"
- #endif
- #ifdef TE_DYNIX
- #define AOUT_TARGET_FORMAT "a.out-i386-dynix"
- #endif
- #ifndef AOUT_TARGET_FORMAT
- #define AOUT_TARGET_FORMAT "a.out-i386"
- #endif
- #ifdef TE_FreeBSD
- #define ELF_TARGET_FORMAT "elf32-i386-freebsd"
- #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd"
- #elif defined (TE_VXWORKS)
- #define ELF_TARGET_FORMAT "elf32-i386-vxworks"
- #elif defined TE_CLOUDABI
- #define ELF_TARGET_FORMAT64 "elf64-x86-64-cloudabi"
- #endif
- #ifdef TE_SOLARIS
- #define ELF_TARGET_FORMAT "elf32-i386-sol2"
- #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2"
- #endif
- #ifndef ELF_TARGET_FORMAT
- #define ELF_TARGET_FORMAT "elf32-i386"
- #endif
- #ifndef ELF_TARGET_FORMAT64
- #define ELF_TARGET_FORMAT64 "elf64-x86-64"
- #endif
- #ifndef ELF_TARGET_FORMAT32
- #define ELF_TARGET_FORMAT32 "elf32-x86-64"
- #endif
- #ifndef ELF_TARGET_IAMCU_FORMAT
- #define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu"
- #endif
- #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
- || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
- || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
- extern const char *i386_target_format (void);
- #define TARGET_FORMAT i386_target_format ()
- #else
- #ifdef TE_GO32
- #define TARGET_FORMAT "coff-go32"
- #endif
- #ifdef OBJ_AOUT
- #define TARGET_FORMAT AOUT_TARGET_FORMAT
- #endif
- #endif
- #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
- /* '$' may be used as immediate prefix. */
- #undef LOCAL_LABELS_DOLLAR
- #define LOCAL_LABELS_DOLLAR 0
- #undef LOCAL_LABELS_FB
- #define LOCAL_LABELS_FB 1
- extern const char extra_symbol_chars[];
- #define tc_symbol_chars extra_symbol_chars
- extern const char *i386_comment_chars;
- #define tc_comment_chars i386_comment_chars
- /* The name of the global offset table generated by the compiler. Allow
- this to be overridden if need be. */
- #ifndef GLOBAL_OFFSET_TABLE_NAME
- #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
- #endif
- #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
- extern bfd_reloc_code_real_type x86_cons (expressionS *, int);
- #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
- x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC)
- extern void x86_cons_fix_new
- (fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type);
- #define X_PRECISION 5
- #define X_PRECISION_PAD 0
- #define TC_ADDRESS_BYTES x86_address_bytes
- extern int x86_address_bytes (void);
- #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
- #define NO_RELOC BFD_RELOC_NONE
- int i386_validate_fix (struct fix *);
- #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) do { \
- if (!i386_validate_fix(FIX)) goto SKIP; \
- } while (0)
- #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
- extern int tc_i386_fix_adjustable (struct fix *);
- /* Values passed to md_apply_fix don't include the symbol value. */
- #define MD_APPLY_SYM_VALUE(FIX) 0
- /* ELF wants external syms kept, as does PE COFF. */
- #if defined (TE_PE) && defined (STRICT_PE_FORMAT)
- #define EXTERN_FORCE_RELOC \
- (OUTPUT_FLAVOR == bfd_target_elf_flavour \
- || OUTPUT_FLAVOR == bfd_target_coff_flavour)
- #else
- #define EXTERN_FORCE_RELOC \
- (OUTPUT_FLAVOR == bfd_target_elf_flavour)
- #endif
- /* This expression evaluates to true if the relocation is for a local
- object for which we still want to do the relocation at runtime.
- False if we are willing to perform this relocation while building
- the .o file. GOTOFF and GOT32 do not need to be checked here because
- they are not pcrel. .*/
- #define TC_FORCE_RELOCATION_LOCAL(FIX) \
- (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
- || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \
- || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
- #define TC_FORCE_RELOCATION_ABS(FIX) \
- (TC_FORCE_RELOCATION (FIX) \
- || (FIX)->fx_r_type == BFD_RELOC_386_GOT32 \
- || (FIX)->fx_r_type == BFD_RELOC_386_GOT32X \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \
- || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
- extern int i386_parse_name (char *, expressionS *, char *);
- #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
- extern operatorT i386_operator (const char *name, unsigned int operands, char *);
- #define md_operator i386_operator
- extern int i386_need_index_operator (void);
- #define md_need_index_operator i386_need_index_operator
- #define md_register_arithmetic 0
- extern const struct relax_type md_relax_table[];
- #define TC_GENERIC_RELAX_TABLE md_relax_table
- extern int optimize_align_code;
- #define md_do_align(n, fill, len, max, around) \
- if ((n) \
- && !need_pass_2 \
- && optimize_align_code \
- && (!(fill) \
- || ((char)*(fill) == (char)0x90 && (len) == 1)) \
- && subseg_text_p (now_seg)) \
- { \
- frag_align_code ((n), (max)); \
- goto around; \
- }
- #define MAX_MEM_FOR_RS_ALIGN_CODE (alignment ? ((1 << alignment) - 1) : 1)
- extern void i386_cons_align (int);
- #define md_cons_align(nbytes) i386_cons_align (nbytes)
- void i386_print_statistics (FILE *);
- #define tc_print_statistics i386_print_statistics
- extern unsigned int i386_frag_max_var (fragS *);
- #define md_frag_max_var i386_frag_max_var
- extern long i386_generic_table_relax_frag (segT, fragS *, long);
- #define md_generic_table_relax_frag(segment, fragP, stretch) \
- i386_generic_table_relax_frag (segment, fragP, stretch)
- #define md_number_to_chars number_to_chars_littleendian
- enum processor_type
- {
- PROCESSOR_UNKNOWN,
- PROCESSOR_I386,
- PROCESSOR_I486,
- PROCESSOR_PENTIUM,
- PROCESSOR_PENTIUMPRO,
- PROCESSOR_PENTIUM4,
- PROCESSOR_NOCONA,
- PROCESSOR_CORE,
- PROCESSOR_CORE2,
- PROCESSOR_COREI7,
- PROCESSOR_IAMCU,
- PROCESSOR_K6,
- PROCESSOR_ATHLON,
- PROCESSOR_K8,
- PROCESSOR_GENERIC32,
- PROCESSOR_GENERIC64,
- PROCESSOR_AMDFAM10,
- PROCESSOR_BD,
- PROCESSOR_ZNVER,
- PROCESSOR_BT
- };
- extern enum processor_type cpu_arch_tune;
- extern enum processor_type cpu_arch_isa;
- extern i386_cpu_flags cpu_arch_isa_flags;
- struct i386_tc_frag_data
- {
- union
- {
- fragS *padding_fragP;
- fragS *branch_fragP;
- } u;
- addressT padding_address;
- enum processor_type isa;
- i386_cpu_flags isa_flags;
- enum processor_type tune;
- unsigned int max_bytes;
- unsigned char length;
- unsigned char last_length;
- unsigned char max_prefix_length;
- unsigned char prefix_length;
- unsigned char default_prefix;
- unsigned char cmp_size;
- unsigned int mf_type : 3;
- unsigned int classified : 1;
- unsigned int branch_type : 3;
- unsigned int code64 : 1; /* Only set by output_branch for now. */
- };
- /* We need to emit the right NOP pattern in .align frags. This is
- done after the text-to-bits assembly pass, so we need to mark it with
- the isa/tune settings at the time the .align was assembled. */
- #define TC_FRAG_TYPE struct i386_tc_frag_data
- #define TC_FRAG_INIT(FRAGP, MAX_BYTES) \
- do \
- { \
- (FRAGP)->tc_frag_data.u.padding_fragP = NULL; \
- (FRAGP)->tc_frag_data.padding_address = 0; \
- (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
- (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \
- (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
- (FRAGP)->tc_frag_data.max_bytes = (MAX_BYTES); \
- (FRAGP)->tc_frag_data.length = 0; \
- (FRAGP)->tc_frag_data.last_length = 0; \
- (FRAGP)->tc_frag_data.max_prefix_length = 0; \
- (FRAGP)->tc_frag_data.prefix_length = 0; \
- (FRAGP)->tc_frag_data.default_prefix = 0; \
- (FRAGP)->tc_frag_data.cmp_size = 0; \
- (FRAGP)->tc_frag_data.classified = 0; \
- (FRAGP)->tc_frag_data.branch_type = 0; \
- (FRAGP)->tc_frag_data.mf_type = 0; \
- } \
- while (0)
- #define WORKING_DOT_WORD 1
- /* How to generate NOPs for .nop direct directive. */
- extern void i386_generate_nops (fragS *, char *, offsetT, int);
- #define md_generate_nops(frag, where, amount, control) \
- i386_generate_nops ((frag), (where), (amount), (control))
- #define HANDLE_ALIGN(fragP) \
- if (fragP->fr_type == rs_align_code) \
- { \
- offsetT __count = (fragP->fr_next->fr_address \
- - fragP->fr_address \
- - fragP->fr_fix); \
- if (__count > 0 \
- && (unsigned int) __count <= fragP->tc_frag_data.max_bytes) \
- md_generate_nops (fragP, fragP->fr_literal + fragP->fr_fix, \
- __count, 0); \
- }
- /* We want .cfi_* pseudo-ops for generating unwind info. */
- #define TARGET_USE_CFIPOP 1
- extern unsigned int x86_dwarf2_return_column;
- #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
- extern int x86_cie_data_alignment;
- #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
- extern int x86_dwarf2_addr_size (void);
- #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size ()
- #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
- extern void tc_x86_parse_to_dw2regnum (expressionS *);
- #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
- extern void tc_x86_frame_initial_instructions (void);
- #define md_elf_section_type(str,len) i386_elf_section_type (str, len)
- extern int i386_elf_section_type (const char *, size_t);
- #ifdef TE_SOLARIS
- #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
- extern void i386_solaris_fix_up_eh_frame (segT);
- #endif
- /* Support for SHF_X86_64_LARGE */
- extern bfd_vma x86_64_section_word (char *, size_t);
- extern bfd_vma x86_64_section_letter (int, const char **);
- #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG)
- #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN)
- #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
- extern void x86_cleanup (void);
- #define md_cleanup() x86_cleanup ()
- #endif
- #ifdef TE_PE
- #define O_secrel O_md1
- #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
- void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
- #endif /* TE_PE */
- /* X_add_symbol:X_op_symbol (Intel mode only) */
- #define O_full_ptr O_md2
- #ifdef OBJ_MACH_O
- #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX))
- #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \
- (obj_mach_o_force_reloc_sub_same (FIX, SEG))
- #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \
- (obj_mach_o_force_reloc_sub_local (FIX, SEG))
- #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
- #endif /* OBJ_MACH_O */
- #endif /* TC_I386 */
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