1/* OS independent definitions for AMD x86-64. 2 Copyright (C) 2001, 2005 Free Software Foundation, Inc. 3 Contributed by Bo Thorsen <bo@suse.de>. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING. If not, write to 19the Free Software Foundation, 51 Franklin Street, Fifth Floor, 20Boston, MA 02110-1301, USA. */ 21 22#undef ASM_COMMENT_START 23#define ASM_COMMENT_START "#" 24 25#undef DBX_REGISTER_NUMBER 26#define DBX_REGISTER_NUMBER(n) \ 27 (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n]) 28 29/* Output assembler code to FILE to call the profiler. */ 30#define NO_PROFILE_COUNTERS 1 31 32#undef MCOUNT_NAME 33#define MCOUNT_NAME "mcount" 34 35#undef SIZE_TYPE 36#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") 37 38#undef PTRDIFF_TYPE 39#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") 40 41#undef WCHAR_TYPE 42#define WCHAR_TYPE "int" 43 44#undef WCHAR_TYPE_SIZE 45#define WCHAR_TYPE_SIZE 32 46 47#undef CC1_SPEC 48#define CC1_SPEC "%(cc1_cpu) %{profile:-p}" 49 50#undef ASM_SPEC 51#define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} \ 52 %{Wa,*:%*} %{m32:--32} %{m64:--64}" 53 54#undef ASM_OUTPUT_ALIGNED_BSS 55#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ 56 x86_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) 57 58#undef ASM_OUTPUT_ALIGNED_COMMON 59#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 60 x86_elf_aligned_common (FILE, NAME, SIZE, ALIGN); 61 62/* This is used to align code labels according to Intel recommendations. */ 63 64#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN 65#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ 66 do { \ 67 if ((LOG) != 0) { \ 68 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ 69 else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ 70 } \ 71 } while (0) 72#endif 73 74 75/* i386 System V Release 4 uses DWARF debugging info. 76 x86-64 ABI specifies DWARF2. */ 77 78#define DWARF2_DEBUGGING_INFO 1 79#define DWARF2_UNWIND_INFO 1 80 81#undef PREFERRED_DEBUGGING_TYPE 82#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 83 84#undef TARGET_ASM_SELECT_SECTION 85#define TARGET_ASM_SELECT_SECTION x86_64_elf_select_section 86 87#undef TARGET_ASM_UNIQUE_SECTION 88#define TARGET_ASM_UNIQUE_SECTION x86_64_elf_unique_section 89