gcc/config/i386/vxworks.h

   1 /* IA32 VxWorks target definitions for GNU compiler.
   2    Copyright (C) 2003, 2004, 2005, 2007, 2010, 2011
   3    Free Software Foundation, Inc.
   4    Updated by CodeSourcery, LLC.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #undef  ASM_SPEC
  23 #define ASM_SPEC ""
  24
  25 #define TARGET_OS_CPP_BUILTINS()                        \
  26   do                                                    \
  27     {                                                   \
  28       VXWORKS_OS_CPP_BUILTINS ();                       \
  29       if (TARGET_386)                                   \
  30         builtin_define ("CPU=I80386");                  \
  31       else if (TARGET_486)                              \
  32         builtin_define ("CPU=I80486");                  \
  33       else if (TARGET_PENTIUM)                          \
  34         {                                               \
  35           builtin_define ("CPU=PENTIUM");               \
  36           builtin_define ("CPU_VARIANT=PENTIUM");       \
  37         }                                               \
  38       else if (TARGET_PENTIUMPRO)                       \
  39         {                                               \
  40           builtin_define ("CPU=PENTIUM2");              \
  41           builtin_define ("CPU_VARIANT=PENTIUMPRO");    \
  42         }                                               \
  43       else if (TARGET_PENTIUM4)                         \
  44         {                                               \
  45           builtin_define ("CPU=PENTIUM4");              \
  46           builtin_define ("CPU_VARIANT=PENTIUM4");      \
  47         }                                               \
  48     }                                                   \
  49   while (0)
  50
  51 #undef  CPP_SPEC
  52 #define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC
  53 #undef  LIB_SPEC
  54 #define LIB_SPEC VXWORKS_LIB_SPEC
  55 #undef  STARTFILE_SPEC
  56 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
  57 #undef  ENDFILE_SPEC
  58 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
  59 #undef  LINK_SPEC
  60 #define LINK_SPEC VXWORKS_LINK_SPEC
  61
  62 #undef  SUBTARGET_SWITCHES
  63 #define SUBTARGET_SWITCHES EXTRA_SUBTARGET_SWITCHES
  64
  65 #undef SUBTARGET_OVERRIDE_OPTIONS
  66 #define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS
  67
  68 /* No _mcount profiling on VxWorks.  */
  69 #undef FUNCTION_PROFILER
  70 #define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)
  71
  72 /* We cannot use PC-relative accesses for VxWorks PIC because there is no
  73    fixed gap between segments.  */
  74 #undef ASM_PREFERRED_EH_DATA_FORMAT