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>.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
24 #undef ASM_COMMENT_START
25 #define ASM_COMMENT_START "#"
27 #undef DBX_REGISTER_NUMBER
28 #define DBX_REGISTER_NUMBER(n) \
29 (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
31 /* Output assembler code to FILE to call the profiler. */
32 #define NO_PROFILE_COUNTERS 1
35 #define MCOUNT_NAME "mcount"
38 #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
41 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
44 #define WCHAR_TYPE "int"
46 #undef WCHAR_TYPE_SIZE
47 #define WCHAR_TYPE_SIZE 32
50 #define CC1_SPEC "%(cc1_cpu) %{profile:-p}"
53 #define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} \
54 %{Wa,*:%*} %{m32:--32} %{m64:--64}"
56 #undef ASM_OUTPUT_ALIGNED_BSS
57 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
58 x86_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
60 #undef ASM_OUTPUT_ALIGNED_COMMON
61 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
62 x86_elf_aligned_common (FILE, NAME, SIZE, ALIGN);
64 /* This is used to align code labels according to Intel recommendations. */
66 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
67 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
70 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
71 else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
77 /* i386 System V Release 4 uses DWARF debugging info.
78 x86-64 ABI specifies DWARF2. */
80 #define DWARF2_DEBUGGING_INFO 1
81 #define DWARF2_UNWIND_INFO 1
83 #undef PREFERRED_DEBUGGING_TYPE
84 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
86 #undef TARGET_ASM_SELECT_SECTION
87 #define TARGET_ASM_SELECT_SECTION x86_64_elf_select_section
89 #undef TARGET_ASM_UNIQUE_SECTION
90 #define TARGET_ASM_UNIQUE_SECTION x86_64_elf_unique_section