gcc/config/arm/vxworks.h

   1 /* Definitions of target machine for GCC,
   2    for ARM with targetting the VXWorks run time environment.
   3    Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
   4
   5    Contributed by: Mike Stump <mrs@wrs.com>
   6    Brought up to date by CodeSourcery, LLC.
   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
  26 #define TARGET_OS_CPP_BUILTINS()                \
  27   do {                                          \
  28     builtin_define ("__vxworks");               \
  29     if (TARGET_BIG_END)                         \
  30       builtin_define ("ARMEB");                 \
  31     else                                        \
  32       builtin_define ("ARMEL");                 \
  33                                                 \
  34     if (arm_is_xscale)                          \
  35       builtin_define ("CPU=XSCALE");            \
  36     else if (arm_arch5)                         \
  37       builtin_define ("CPU=ARMARCH5");          \
  38     else if (arm_arch4)                         \
  39       {                                         \
  40         if (thumb_code)                         \
  41           builtin_define ("CPU=ARMARCH4_T");    \
  42         else                                    \
  43           builtin_define ("CPU=ARMARCH4");      \
  44       }                                         \
  45   } while (0)
  46
  47 #undef  CC1_SPEC
  48 #define CC1_SPEC                                                        \
  49 "%{t4:        -mlittle-endian -march=armv4 ;                    \
  50    t4be:      -mbig-endian -march=armv4 ;                       \
  51    t4t:       -mthumb -mthumb-interwork -mlittle-endian -march=armv4t ; \
  52    t4tbe:     -mthumb -mthumb-interwork -mbig-endian -march=armv4t ;    \
  53    t5:        -mlittle-endian -march=armv5 ;                    \
  54    t5be:      -mbig-endian -march=armv5 ;                       \
  55    t5t:       -mthumb -mthumb-interwork -mlittle-endian -march=armv5 ;  \
  56    t5tbe:     -mthumb -mthumb-interwork -mbig-endian -march=armv5 ;     \
  57    txscale:   -mlittle-endian -mcpu=xscale ;                    \
  58    txscalebe: -mbig-endian -mcpu=xscale ;                       \
  59             : -march=armv4}"
  60
  61 /* The -Q options from svr4.h aren't understood and must be removed.  */
  62 #undef  ASM_SPEC
  63 #define ASM_SPEC \
  64   "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
  65
  66 /* VxWorks does all the library stuff itself.  */
  67 #undef  LIB_SPEC
  68 #define LIB_SPEC        ""
  69
  70 /* VxWorks uses object files, not loadable images.  make linker just
  71    combine objects.  */
  72 #undef  LINK_SPEC
  73 #define LINK_SPEC       "-r"
  74
  75 /* VxWorks provides the functionality of crt0.o and friends itself.  */
  76 #undef  STARTFILE_SPEC
  77 #define STARTFILE_SPEC  ""
  78
  79 #undef  ENDFILE_SPEC
  80 #define ENDFILE_SPEC    ""
  81
  82 #undef  TARGET_VERSION
  83 #define TARGET_VERSION  fputs (" (ARM/VxWorks)", stderr);
  84
  85 /* There is no default multilib.  */
  86 #undef MULTILIB_DEFAULTS
  87
  88 #undef  ASM_FILE_START
  89 #define ASM_FILE_START(STREAM)                                          \
  90   do                                                                    \
  91     {                                                                   \
  92       fprintf (STREAM, "%s Generated by GCC %s for ARM/VxWorks\n",      \
  93                ASM_COMMENT_START, version_string);                      \
  94     }                                                                   \
  95   while (0)