external/gpl3/gcc/files/i386-minix.h

   1 /* Definitions for Intel 386 running MINIX with ELF format
   2    Copyright (C) 1996, 2000, 2002, 2004 Free Software Foundation, Inc.
   3    Contributed by Eric Youngdale.
   4    Modified for stabs-in-ELF by H.J. Lu.
   5    Adapted from GNU/Linux version by John Polstra.
   6    Continued development by David O'Brien <obrien@freebsd.org>
   7
   8 This file is part of GCC.
   9
  10 GCC is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2, or (at your option)
  13 any later version.
  14
  15 GCC is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with GCC; see the file COPYING.  If not, write to
  22 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  23 Boston, MA 02110-1301, USA.  */
  24
  25 #undef  MINIX_TARGET_CPU_CPP_BUILTINS
  26 #define MINIX_TARGET_CPU_CPP_BUILTINS()          \
  27   do                                            \
  28     {                                           \
  29                 builtin_define ("__i386");      \
  30                 builtin_define_with_int_value ("_EM_WSIZE", 4); \
  31                 builtin_define_with_int_value ("_EM_PSIZE", 4); \
  32                 builtin_define_with_int_value ("_EM_SSIZE", 2); \
  33                 builtin_define_with_int_value ("_EM_LSIZE", 4); \
  34                 builtin_define_with_int_value ("_EM_FSIZE", 4); \
  35                 builtin_define_with_int_value ("_EM_DSIZE", 8); \
  36     }                                           \
  37   while (0)
  38
  39 #define TARGET_VERSION fprintf (stderr, " (MINIX/i586 ELF)");
  40
  41 /* Override the default comment-starter of "/".  */
  42 #undef  ASM_COMMENT_START
  43 #define ASM_COMMENT_START "#"
  44
  45 #undef  ASM_APP_ON
  46 #define ASM_APP_ON "#APP\n"
  47
  48 #undef  ASM_APP_OFF
  49 #define ASM_APP_OFF "#NO_APP\n"
  50
  51 #undef  DBX_REGISTER_NUMBER
  52 #define DBX_REGISTER_NUMBER(n) \
  53   (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
  54
  55 #undef  NO_PROFILE_COUNTERS
  56 #define NO_PROFILE_COUNTERS     1
  57
  58 /* Tell final.c that we don't need a label passed to mcount.  */
  59
  60 #undef  MCOUNT_NAME
  61 #define MCOUNT_NAME ".mcount"
  62
  63 /* Make gcc agree with <machine/ansi.h>.  */
  64
  65 #undef  SIZE_TYPE
  66 #define SIZE_TYPE       (TARGET_64BIT ? "long unsigned int" : "unsigned int")
  67
  68 #undef  PTRDIFF_TYPE
  69 #define PTRDIFF_TYPE    (TARGET_64BIT ? "long int" : "int")
  70
  71 #undef  WCHAR_TYPE_SIZE
  72 #define WCHAR_TYPE_SIZE (TARGET_64BIT ? 32 : BITS_PER_WORD)
  73
  74 /* A C statement to output to the stdio stream FILE an assembler
  75    command to advance the location counter to a multiple of 1<<LOG
  76    bytes if it is within MAX_SKIP bytes.
  77
  78    This is used to align code labels according to Intel recommendations.  */
  79
  80 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
  81 #undef  ASM_OUTPUT_MAX_SKIP_ALIGN
  82 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP)                                  \
  83   if ((LOG) != 0) {                                                                                                             \
  84     if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));    \
  85     else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));    \
  86   }
  87 #endif
  88
  89 /* Don't default to pcc-struct-return, we want to retain compatibility with
  90    older gcc versions AND pcc-struct-return is nonreentrant.
  91    (even though the SVR4 ABI for the i386 says that records and unions are
  92    returned in memory).  */
  93
  94 #undef  DEFAULT_PCC_STRUCT_RETURN
  95 #define DEFAULT_PCC_STRUCT_RETURN 0
  96
  97 #define SUBTARGET32_DEFAULT_CPU "i586"