| /* tc-i386.h -- Header file for tc-i386.c |
| Copyright 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
| 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 bfd_arch_i386 |
| #define TARGET_MACH (i386_mach ()) |
| 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" |
| #endif |
| |
| #ifndef ELF_TARGET_FORMAT |
| #define ELF_TARGET_FORMAT "elf32-i386" |
| #endif |
| |
| #ifndef ELF_TARGET_FORMAT64 |
| #define ELF_TARGET_FORMAT64 "elf64-x86-64" |
| #endif |
| |
| #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
| || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) |
| extern const char *i386_target_format (void); |
| #define TARGET_FORMAT i386_target_format () |
| #else |
| #ifdef OBJ_ELF |
| #define TARGET_FORMAT ELF_TARGET_FORMAT |
| #endif |
| #ifdef OBJ_AOUT |
| #define TARGET_FORMAT AOUT_TARGET_FORMAT |
| #endif |
| #endif |
| |
| #if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)) |
| #define md_end i386_elf_emit_arch_note |
| extern void i386_elf_emit_arch_note (void); |
| #endif |
| |
| #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 |
| |
| #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 |
| |
| #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) |
| #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) |
| extern void x86_cons (expressionS *, int); |
| #endif |
| |
| #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_cons_fix_new(FRAG, OFF, LEN, EXP) |
| extern void x86_cons_fix_new |
| (fragS *, unsigned int, unsigned int, expressionS *); |
| |
| #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ |
| |
| #define NO_RELOC BFD_RELOC_NONE |
| |
| void i386_validate_fix (struct fix *); |
| #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX) |
| |
| #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 does not need to be checked here because it is |
| not pcrel. I am not sure if some of the others are ever used with |
| pcrel, but it is easier to be safe than sorry. */ |
| |
| #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
| (!(FIX)->fx_pcrel \ |
| || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ |
| || (FIX)->fx_r_type == BFD_RELOC_386_GOT32 \ |
| || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ |
| || TC_FORCE_RELOCATION (FIX)) |
| |
| extern int i386_parse_name (char *, expressionS *, char *); |
| #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) |
| |
| #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 31 |
| |
| extern void i386_align_code (fragS *, int); |
| |
| #define HANDLE_ALIGN(fragP) \ |
| if (fragP->fr_type == rs_align_code) \ |
| i386_align_code (fragP, (fragP->fr_next->fr_address \ |
| - fragP->fr_address \ |
| - fragP->fr_fix)); |
| |
| void i386_print_statistics (FILE *); |
| #define tc_print_statistics i386_print_statistics |
| |
| #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_K6, |
| PROCESSOR_ATHLON, |
| PROCESSOR_K8, |
| PROCESSOR_GENERIC32, |
| PROCESSOR_GENERIC64, |
| PROCESSOR_AMDFAM10 |
| }; |
| |
| 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 |
| { |
| enum processor_type isa; |
| i386_cpu_flags isa_flags; |
| enum processor_type tune; |
| }; |
| |
| /* 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) \ |
| do \ |
| { \ |
| (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; \ |
| } \ |
| while (0) |
| |
| #ifdef SCO_ELF |
| #define tc_init_after_args() sco_id () |
| extern void sco_id (void); |
| #endif |
| |
| #define WORKING_DOT_WORD 1 |
| |
| /* 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 |
| |
| #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 int x86_64_section_word (char *, size_t); |
| extern int x86_64_section_letter (int, 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) |
| |
| #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 */ |
| |
| #endif /* TC_I386 */ |