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     if (TARGET_BIG_END)                         \
  29       builtin_define ("ARMEB");                 \
  30     else                                        \
  31       builtin_define ("ARMEL");                 \
  32                                                 \
  33     if (arm_arch_xscale)                        \
  34       builtin_define ("CPU=XSCALE");            \
  35     else if (arm_arch5)                         \
  36       builtin_define ("CPU=ARMARCH5");          \
  37     else if (arm_arch4)                         \
  38       {                                         \
  39         if (thumb_code)                         \
  40           builtin_define ("CPU=ARMARCH4_T");    \
  41         else                                    \
  42           builtin_define ("CPU=ARMARCH4");      \
  43       }                                         \
  44     VXWORKS_OS_CPP_BUILTINS ();                 \
  45   } while (0)
  46
  47 #undef OVERRIDE_OPTIONS
  48 #define OVERRIDE_OPTIONS                        \
  49   do                                            \
  50     {                                           \
  51       VXWORKS_OVERRIDE_OPTIONS;                 \
  52       arm_override_options ();                  \
  53     }                                           \
  54   while (0)
  55
  56 /* Subsume the arm/elf.h definition, and add RTP hooks.  */
  57 #undef SUBTARGET_CPP_SPEC
  58 #define SUBTARGET_CPP_SPEC "-D__ELF__" VXWORKS_ADDITIONAL_CPP_SPEC
  59
  60 #undef  CC1_SPEC
  61 #define CC1_SPEC                                                        \
  62 "%{tstrongarm:-mlittle-endian -mcpu=strongarm ;                         \
  63    t4:        -mlittle-endian -march=armv4 ;                            \
  64    t4be:      -mbig-endian -march=armv4 ;                               \
  65    t4t:       -mthumb -mthumb-interwork -mlittle-endian -march=armv4t ; \
  66    t4tbe:     -mthumb -mthumb-interwork -mbig-endian -march=armv4t ;    \
  67    t5:        -mlittle-endian -march=armv5 ;                            \
  68    t5be:      -mbig-endian -march=armv5 ;                               \
  69    t5t:       -mthumb -mthumb-interwork -mlittle-endian -march=armv5 ;  \
  70    t5tbe:     -mthumb -mthumb-interwork -mbig-endian -march=armv5 ;     \
  71    txscale:   -mlittle-endian -mcpu=xscale ;                            \
  72    txscalebe: -mbig-endian -mcpu=xscale ;                               \
  73             : -march=armv4}"
  74
  75 /* Pass -EB for big-endian targets.  */
  76 #define VXWORKS_ENDIAN_SPEC \
  77   "%{mbig-endian|t4be|t4tbe|t5be|t5tbe|txscalebe:-EB}"
  78
  79 #undef SUBTARGET_EXTRA_ASM_SPEC
  80 #define SUBTARGET_EXTRA_ASM_SPEC VXWORKS_ENDIAN_SPEC
  81
  82 #undef LINK_SPEC
  83 #define LINK_SPEC VXWORKS_LINK_SPEC " " VXWORKS_ENDIAN_SPEC
  84
  85 #undef LIB_SPEC
  86 #define LIB_SPEC VXWORKS_LIB_SPEC
  87
  88 #undef STARTFILE_SPEC
  89 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
  90
  91 #undef ENDFILE_SPEC
  92 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
  93
  94 #undef TARGET_VERSION
  95 #define TARGET_VERSION fputs (" (ARM/VxWorks)", stderr);
  96
  97 /* There is no default multilib.  */
  98 #undef MULTILIB_DEFAULTS
  99
 100 #define FPUTYPE_DEFAULT FPUTYPE_VFP
 101
 102 #undef FUNCTION_PROFILER
 103 #define FUNCTION_PROFILER VXWORKS_FUNCTION_PROFILER
 104
 105 /* We want to be compatible with a version of "2.96" at one point in
 106    the past before this macro was changed.  */
 107 #undef DEFAULT_STRUCTURE_SIZE_BOUNDARY
 108 #define DEFAULT_STRUCTURE_SIZE_BOUNDARY 8