gcc/config/i386/x86-64.h

   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
   5 This file is part of GCC.
   6
   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)
  10 any later version.
  11
  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.
  16
  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.  */
  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