1/* OS independent definitions for AMD x86-64.
2 Copyright (C) 2001-2017 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 3, 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
17Under Section 7 of GPL version 3, you are granted additional
18permissions described in the GCC Runtime Library Exception, version
193.1, as published by the Free Software Foundation.
20
21You should have received a copy of the GNU General Public License and
22a copy of the GCC Runtime Library Exception along with this program;
23see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24<http://www.gnu.org/licenses/>. */
25
26#undef ASM_COMMENT_START
27#define ASM_COMMENT_START "#"
28
29#undef DBX_REGISTER_NUMBER
30#define DBX_REGISTER_NUMBER(n) \
31 (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
32
33/* Output assembler code to FILE to call the profiler. */
34#define NO_PROFILE_COUNTERS 1
35
36#undef MCOUNT_NAME
37#define MCOUNT_NAME "mcount"
38
39#undef SIZE_TYPE
40#define SIZE_TYPE (TARGET_LP64 ? "long unsigned int" : "unsigned int")
41
42#undef PTRDIFF_TYPE
43#define PTRDIFF_TYPE (TARGET_LP64 ? "long int" : "int")
44
45#undef WCHAR_TYPE
46#define WCHAR_TYPE "int"
47
48#undef WCHAR_TYPE_SIZE
49#define WCHAR_TYPE_SIZE 32
50
51#undef ASM_SPEC
52#define ASM_SPEC "%{m16|m32:--32} %{m64:--64} %{mx32:--x32}"
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_DECL_COMMON
59#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
60 x86_elf_aligned_decl_common (FILE, DECL, 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 { \
70 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
71 /* Make sure that we have at least 8 byte alignment if > 8 byte \
72 alignment is preferred. */ \
73 if ((LOG) > 3 \
74 && (1 << (LOG)) > ((MAX_SKIP) + 1) \
75 && (MAX_SKIP) >= 7) \
76 fputs ("\t.p2align 3\n", (FILE)); \
77 } \
78 } \
79 } while (0)
80#undef ASM_OUTPUT_MAX_SKIP_PAD
81#define ASM_OUTPUT_MAX_SKIP_PAD(FILE, LOG, MAX_SKIP) \
82 if ((LOG) != 0) \
83 { \
84 if ((MAX_SKIP) == 0) \
85 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
86 else \
87 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
88 }
89#endif
90
91
92/* i386 System V Release 4 uses DWARF debugging info.
93 x86-64 ABI specifies DWARF2. */
94
95#define DWARF2_DEBUGGING_INFO 1
96#define DWARF2_UNWIND_INFO 1
97
98#undef PREFERRED_DEBUGGING_TYPE
99#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
100
101#undef TARGET_ASM_SELECT_SECTION
102#define TARGET_ASM_SELECT_SECTION x86_64_elf_select_section
103
104#undef TARGET_ASM_UNIQUE_SECTION
105#define TARGET_ASM_UNIQUE_SECTION x86_64_elf_unique_section
106
107#undef TARGET_SECTION_TYPE_FLAGS
108#define TARGET_SECTION_TYPE_FLAGS x86_64_elf_section_type_flags
109