1*a9fa9459Szrj /* tc-i386.h -- Header file for tc-i386.c 2*a9fa9459Szrj Copyright (C) 1989-2016 Free Software Foundation, Inc. 3*a9fa9459Szrj 4*a9fa9459Szrj This file is part of GAS, the GNU Assembler. 5*a9fa9459Szrj 6*a9fa9459Szrj GAS is free software; you can redistribute it and/or modify 7*a9fa9459Szrj it under the terms of the GNU General Public License as published by 8*a9fa9459Szrj the Free Software Foundation; either version 3, or (at your option) 9*a9fa9459Szrj any later version. 10*a9fa9459Szrj 11*a9fa9459Szrj GAS is distributed in the hope that it will be useful, 12*a9fa9459Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 13*a9fa9459Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*a9fa9459Szrj GNU General Public License for more details. 15*a9fa9459Szrj 16*a9fa9459Szrj You should have received a copy of the GNU General Public License 17*a9fa9459Szrj along with GAS; see the file COPYING. If not, write to the Free 18*a9fa9459Szrj Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 19*a9fa9459Szrj 02110-1301, USA. */ 20*a9fa9459Szrj 21*a9fa9459Szrj #ifndef TC_I386 22*a9fa9459Szrj #define TC_I386 1 23*a9fa9459Szrj 24*a9fa9459Szrj #include "opcodes/i386-opc.h" 25*a9fa9459Szrj 26*a9fa9459Szrj struct fix; 27*a9fa9459Szrj 28*a9fa9459Szrj #define TARGET_BYTES_BIG_ENDIAN 0 29*a9fa9459Szrj 30*a9fa9459Szrj #define TARGET_ARCH (i386_arch ()) 31*a9fa9459Szrj #define TARGET_MACH (i386_mach ()) 32*a9fa9459Szrj extern enum bfd_architecture i386_arch (void); 33*a9fa9459Szrj extern unsigned long i386_mach (void); 34*a9fa9459Szrj 35*a9fa9459Szrj #ifdef TE_FreeBSD 36*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386-freebsd" 37*a9fa9459Szrj #endif 38*a9fa9459Szrj #ifdef TE_NetBSD 39*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386-netbsd" 40*a9fa9459Szrj #endif 41*a9fa9459Szrj #ifdef TE_386BSD 42*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386-bsd" 43*a9fa9459Szrj #endif 44*a9fa9459Szrj #ifdef TE_LINUX 45*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386-linux" 46*a9fa9459Szrj #endif 47*a9fa9459Szrj #ifdef TE_Mach 48*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-mach3" 49*a9fa9459Szrj #endif 50*a9fa9459Szrj #ifdef TE_DYNIX 51*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386-dynix" 52*a9fa9459Szrj #endif 53*a9fa9459Szrj #ifndef AOUT_TARGET_FORMAT 54*a9fa9459Szrj #define AOUT_TARGET_FORMAT "a.out-i386" 55*a9fa9459Szrj #endif 56*a9fa9459Szrj 57*a9fa9459Szrj #ifdef TE_FreeBSD 58*a9fa9459Szrj #define ELF_TARGET_FORMAT "elf32-i386-freebsd" 59*a9fa9459Szrj #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd" 60*a9fa9459Szrj #elif defined (TE_VXWORKS) 61*a9fa9459Szrj #define ELF_TARGET_FORMAT "elf32-i386-vxworks" 62*a9fa9459Szrj #elif defined (TE_NACL) 63*a9fa9459Szrj #define ELF_TARGET_FORMAT "elf32-i386-nacl" 64*a9fa9459Szrj #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl" 65*a9fa9459Szrj #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl" 66*a9fa9459Szrj #endif 67*a9fa9459Szrj 68*a9fa9459Szrj #ifdef TE_SOLARIS 69*a9fa9459Szrj #define ELF_TARGET_FORMAT "elf32-i386-sol2" 70*a9fa9459Szrj #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2" 71*a9fa9459Szrj #endif 72*a9fa9459Szrj 73*a9fa9459Szrj #ifndef ELF_TARGET_FORMAT 74*a9fa9459Szrj #define ELF_TARGET_FORMAT "elf32-i386" 75*a9fa9459Szrj #endif 76*a9fa9459Szrj 77*a9fa9459Szrj #ifndef ELF_TARGET_FORMAT64 78*a9fa9459Szrj #define ELF_TARGET_FORMAT64 "elf64-x86-64" 79*a9fa9459Szrj #endif 80*a9fa9459Szrj 81*a9fa9459Szrj #ifndef ELF_TARGET_FORMAT32 82*a9fa9459Szrj #define ELF_TARGET_FORMAT32 "elf32-x86-64" 83*a9fa9459Szrj #endif 84*a9fa9459Szrj 85*a9fa9459Szrj #ifndef ELF_TARGET_L1OM_FORMAT 86*a9fa9459Szrj #define ELF_TARGET_L1OM_FORMAT "elf64-l1om" 87*a9fa9459Szrj #endif 88*a9fa9459Szrj 89*a9fa9459Szrj #ifndef ELF_TARGET_K1OM_FORMAT 90*a9fa9459Szrj #define ELF_TARGET_K1OM_FORMAT "elf64-k1om" 91*a9fa9459Szrj #endif 92*a9fa9459Szrj 93*a9fa9459Szrj #ifndef ELF_TARGET_IAMCU_FORMAT 94*a9fa9459Szrj #define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu" 95*a9fa9459Szrj #endif 96*a9fa9459Szrj 97*a9fa9459Szrj #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ 98*a9fa9459Szrj || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ 99*a9fa9459Szrj || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) 100*a9fa9459Szrj extern const char *i386_target_format (void); 101*a9fa9459Szrj #define TARGET_FORMAT i386_target_format () 102*a9fa9459Szrj #else 103*a9fa9459Szrj #ifdef TE_GO32 104*a9fa9459Szrj #define TARGET_FORMAT "coff-go32" 105*a9fa9459Szrj #endif 106*a9fa9459Szrj #ifdef OBJ_AOUT 107*a9fa9459Szrj #define TARGET_FORMAT AOUT_TARGET_FORMAT 108*a9fa9459Szrj #endif 109*a9fa9459Szrj #endif 110*a9fa9459Szrj 111*a9fa9459Szrj #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 112*a9fa9459Szrj 113*a9fa9459Szrj /* '$' may be used as immediate prefix. */ 114*a9fa9459Szrj #undef LOCAL_LABELS_DOLLAR 115*a9fa9459Szrj #define LOCAL_LABELS_DOLLAR 0 116*a9fa9459Szrj #undef LOCAL_LABELS_FB 117*a9fa9459Szrj #define LOCAL_LABELS_FB 1 118*a9fa9459Szrj 119*a9fa9459Szrj extern const char extra_symbol_chars[]; 120*a9fa9459Szrj #define tc_symbol_chars extra_symbol_chars 121*a9fa9459Szrj 122*a9fa9459Szrj extern const char *i386_comment_chars; 123*a9fa9459Szrj #define tc_comment_chars i386_comment_chars 124*a9fa9459Szrj 125*a9fa9459Szrj /* The name of the global offset table generated by the compiler. Allow 126*a9fa9459Szrj this to be overridden if need be. */ 127*a9fa9459Szrj #ifndef GLOBAL_OFFSET_TABLE_NAME 128*a9fa9459Szrj #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" 129*a9fa9459Szrj #endif 130*a9fa9459Szrj 131*a9fa9459Szrj #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) 132*a9fa9459Szrj #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) 133*a9fa9459Szrj #endif 134*a9fa9459Szrj extern bfd_reloc_code_real_type x86_cons (expressionS *, int); 135*a9fa9459Szrj 136*a9fa9459Szrj #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \ 137*a9fa9459Szrj x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC) 138*a9fa9459Szrj extern void x86_cons_fix_new 139*a9fa9459Szrj (fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type); 140*a9fa9459Szrj 141*a9fa9459Szrj #define TC_ADDRESS_BYTES x86_address_bytes 142*a9fa9459Szrj extern int x86_address_bytes (void); 143*a9fa9459Szrj 144*a9fa9459Szrj #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ 145*a9fa9459Szrj 146*a9fa9459Szrj #define NO_RELOC BFD_RELOC_NONE 147*a9fa9459Szrj 148*a9fa9459Szrj void i386_validate_fix (struct fix *); 149*a9fa9459Szrj #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX) 150*a9fa9459Szrj 151*a9fa9459Szrj #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X) 152*a9fa9459Szrj extern int tc_i386_fix_adjustable (struct fix *); 153*a9fa9459Szrj 154*a9fa9459Szrj /* Values passed to md_apply_fix don't include the symbol value. */ 155*a9fa9459Szrj #define MD_APPLY_SYM_VALUE(FIX) 0 156*a9fa9459Szrj 157*a9fa9459Szrj /* ELF wants external syms kept, as does PE COFF. */ 158*a9fa9459Szrj #if defined (TE_PE) && defined (STRICT_PE_FORMAT) 159*a9fa9459Szrj #define EXTERN_FORCE_RELOC \ 160*a9fa9459Szrj (OUTPUT_FLAVOR == bfd_target_elf_flavour \ 161*a9fa9459Szrj || OUTPUT_FLAVOR == bfd_target_coff_flavour) 162*a9fa9459Szrj #else 163*a9fa9459Szrj #define EXTERN_FORCE_RELOC \ 164*a9fa9459Szrj (OUTPUT_FLAVOR == bfd_target_elf_flavour) 165*a9fa9459Szrj #endif 166*a9fa9459Szrj 167*a9fa9459Szrj /* This expression evaluates to true if the relocation is for a local 168*a9fa9459Szrj object for which we still want to do the relocation at runtime. 169*a9fa9459Szrj False if we are willing to perform this relocation while building 170*a9fa9459Szrj the .o file. GOTOFF and GOT32 do not need to be checked here because 171*a9fa9459Szrj they are not pcrel. .*/ 172*a9fa9459Szrj 173*a9fa9459Szrj #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 174*a9fa9459Szrj (!(FIX)->fx_pcrel \ 175*a9fa9459Szrj || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ 176*a9fa9459Szrj || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ 177*a9fa9459Szrj || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \ 178*a9fa9459Szrj || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX \ 179*a9fa9459Szrj || TC_FORCE_RELOCATION (FIX)) 180*a9fa9459Szrj 181*a9fa9459Szrj extern int i386_parse_name (char *, expressionS *, char *); 182*a9fa9459Szrj #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) 183*a9fa9459Szrj 184*a9fa9459Szrj extern operatorT i386_operator (const char *name, unsigned int operands, char *); 185*a9fa9459Szrj #define md_operator i386_operator 186*a9fa9459Szrj 187*a9fa9459Szrj extern int i386_need_index_operator (void); 188*a9fa9459Szrj #define md_need_index_operator i386_need_index_operator 189*a9fa9459Szrj 190*a9fa9459Szrj #define md_register_arithmetic 0 191*a9fa9459Szrj 192*a9fa9459Szrj extern const struct relax_type md_relax_table[]; 193*a9fa9459Szrj #define TC_GENERIC_RELAX_TABLE md_relax_table 194*a9fa9459Szrj 195*a9fa9459Szrj extern int optimize_align_code; 196*a9fa9459Szrj 197*a9fa9459Szrj #define md_do_align(n, fill, len, max, around) \ 198*a9fa9459Szrj if ((n) \ 199*a9fa9459Szrj && !need_pass_2 \ 200*a9fa9459Szrj && optimize_align_code \ 201*a9fa9459Szrj && (!(fill) \ 202*a9fa9459Szrj || ((char)*(fill) == (char)0x90 && (len) == 1)) \ 203*a9fa9459Szrj && subseg_text_p (now_seg)) \ 204*a9fa9459Szrj { \ 205*a9fa9459Szrj frag_align_code ((n), (max)); \ 206*a9fa9459Szrj goto around; \ 207*a9fa9459Szrj } 208*a9fa9459Szrj 209*a9fa9459Szrj #define MAX_MEM_FOR_RS_ALIGN_CODE 31 210*a9fa9459Szrj 211*a9fa9459Szrj extern void i386_align_code (fragS *, int); 212*a9fa9459Szrj 213*a9fa9459Szrj #define HANDLE_ALIGN(fragP) \ 214*a9fa9459Szrj if (fragP->fr_type == rs_align_code) \ 215*a9fa9459Szrj i386_align_code (fragP, (fragP->fr_next->fr_address \ 216*a9fa9459Szrj - fragP->fr_address \ 217*a9fa9459Szrj - fragP->fr_fix)); 218*a9fa9459Szrj 219*a9fa9459Szrj void i386_print_statistics (FILE *); 220*a9fa9459Szrj #define tc_print_statistics i386_print_statistics 221*a9fa9459Szrj 222*a9fa9459Szrj extern unsigned int i386_frag_max_var (fragS *); 223*a9fa9459Szrj #define md_frag_max_var i386_frag_max_var 224*a9fa9459Szrj 225*a9fa9459Szrj #define md_number_to_chars number_to_chars_littleendian 226*a9fa9459Szrj 227*a9fa9459Szrj enum processor_type 228*a9fa9459Szrj { 229*a9fa9459Szrj PROCESSOR_UNKNOWN, 230*a9fa9459Szrj PROCESSOR_I386, 231*a9fa9459Szrj PROCESSOR_I486, 232*a9fa9459Szrj PROCESSOR_PENTIUM, 233*a9fa9459Szrj PROCESSOR_PENTIUMPRO, 234*a9fa9459Szrj PROCESSOR_PENTIUM4, 235*a9fa9459Szrj PROCESSOR_NOCONA, 236*a9fa9459Szrj PROCESSOR_CORE, 237*a9fa9459Szrj PROCESSOR_CORE2, 238*a9fa9459Szrj PROCESSOR_COREI7, 239*a9fa9459Szrj PROCESSOR_L1OM, 240*a9fa9459Szrj PROCESSOR_K1OM, 241*a9fa9459Szrj PROCESSOR_IAMCU, 242*a9fa9459Szrj PROCESSOR_K6, 243*a9fa9459Szrj PROCESSOR_ATHLON, 244*a9fa9459Szrj PROCESSOR_K8, 245*a9fa9459Szrj PROCESSOR_GENERIC32, 246*a9fa9459Szrj PROCESSOR_GENERIC64, 247*a9fa9459Szrj PROCESSOR_AMDFAM10, 248*a9fa9459Szrj PROCESSOR_BD, 249*a9fa9459Szrj PROCESSOR_ZNVER, 250*a9fa9459Szrj PROCESSOR_BT 251*a9fa9459Szrj }; 252*a9fa9459Szrj 253*a9fa9459Szrj extern enum processor_type cpu_arch_tune; 254*a9fa9459Szrj extern enum processor_type cpu_arch_isa; 255*a9fa9459Szrj extern i386_cpu_flags cpu_arch_isa_flags; 256*a9fa9459Szrj 257*a9fa9459Szrj struct i386_tc_frag_data 258*a9fa9459Szrj { 259*a9fa9459Szrj enum processor_type isa; 260*a9fa9459Szrj i386_cpu_flags isa_flags; 261*a9fa9459Szrj enum processor_type tune; 262*a9fa9459Szrj }; 263*a9fa9459Szrj 264*a9fa9459Szrj /* We need to emit the right NOP pattern in .align frags. This is 265*a9fa9459Szrj done after the text-to-bits assembly pass, so we need to mark it with 266*a9fa9459Szrj the isa/tune settings at the time the .align was assembled. */ 267*a9fa9459Szrj #define TC_FRAG_TYPE struct i386_tc_frag_data 268*a9fa9459Szrj 269*a9fa9459Szrj #define TC_FRAG_INIT(FRAGP) \ 270*a9fa9459Szrj do \ 271*a9fa9459Szrj { \ 272*a9fa9459Szrj (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \ 273*a9fa9459Szrj (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \ 274*a9fa9459Szrj (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \ 275*a9fa9459Szrj } \ 276*a9fa9459Szrj while (0) 277*a9fa9459Szrj 278*a9fa9459Szrj #ifdef SCO_ELF 279*a9fa9459Szrj #define tc_init_after_args() sco_id () 280*a9fa9459Szrj extern void sco_id (void); 281*a9fa9459Szrj #endif 282*a9fa9459Szrj 283*a9fa9459Szrj #define WORKING_DOT_WORD 1 284*a9fa9459Szrj 285*a9fa9459Szrj /* We want .cfi_* pseudo-ops for generating unwind info. */ 286*a9fa9459Szrj #define TARGET_USE_CFIPOP 1 287*a9fa9459Szrj 288*a9fa9459Szrj extern unsigned int x86_dwarf2_return_column; 289*a9fa9459Szrj #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column 290*a9fa9459Szrj 291*a9fa9459Szrj extern int x86_cie_data_alignment; 292*a9fa9459Szrj #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment 293*a9fa9459Szrj 294*a9fa9459Szrj extern int x86_dwarf2_addr_size (void); 295*a9fa9459Szrj #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size () 296*a9fa9459Szrj 297*a9fa9459Szrj #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum 298*a9fa9459Szrj extern void tc_x86_parse_to_dw2regnum (expressionS *); 299*a9fa9459Szrj 300*a9fa9459Szrj #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions 301*a9fa9459Szrj extern void tc_x86_frame_initial_instructions (void); 302*a9fa9459Szrj 303*a9fa9459Szrj #define md_elf_section_type(str,len) i386_elf_section_type (str, len) 304*a9fa9459Szrj extern int i386_elf_section_type (const char *, size_t); 305*a9fa9459Szrj 306*a9fa9459Szrj #ifdef TE_SOLARIS 307*a9fa9459Szrj #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec) 308*a9fa9459Szrj extern void i386_solaris_fix_up_eh_frame (segT); 309*a9fa9459Szrj #endif 310*a9fa9459Szrj 311*a9fa9459Szrj /* Support for SHF_X86_64_LARGE */ 312*a9fa9459Szrj extern bfd_vma x86_64_section_word (char *, size_t); 313*a9fa9459Szrj extern bfd_vma x86_64_section_letter (int, const char **); 314*a9fa9459Szrj #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG) 315*a9fa9459Szrj #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN) 316*a9fa9459Szrj 317*a9fa9459Szrj #ifdef TE_PE 318*a9fa9459Szrj 319*a9fa9459Szrj #define O_secrel O_md1 320*a9fa9459Szrj 321*a9fa9459Szrj #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset 322*a9fa9459Szrj void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int); 323*a9fa9459Szrj 324*a9fa9459Szrj #endif /* TE_PE */ 325*a9fa9459Szrj 326*a9fa9459Szrj /* X_add_symbol:X_op_symbol (Intel mode only) */ 327*a9fa9459Szrj #define O_full_ptr O_md2 328*a9fa9459Szrj 329*a9fa9459Szrj #ifdef OBJ_MACH_O 330*a9fa9459Szrj 331*a9fa9459Szrj #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX)) 332*a9fa9459Szrj 333*a9fa9459Szrj #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \ 334*a9fa9459Szrj (obj_mach_o_force_reloc_sub_same (FIX, SEG)) 335*a9fa9459Szrj 336*a9fa9459Szrj #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \ 337*a9fa9459Szrj (obj_mach_o_force_reloc_sub_local (FIX, SEG)) 338*a9fa9459Szrj 339*a9fa9459Szrj #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1 340*a9fa9459Szrj 341*a9fa9459Szrj #endif /* OBJ_MACH_O */ 342*a9fa9459Szrj 343*a9fa9459Szrj #endif /* TC_I386 */ 344