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