gcc/config/sparc/vxworks.h

   1 /* Definitions of target machine for GNU compiler,
   2    for SPARC targeting the VxWorks run time environment.
   3    Copyright (C) 2007-2017 Free Software Foundation, Inc.
   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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #define TARGET_OS_CPP_BUILTINS()                \
  22   do                                            \
  23     {                                           \
  24       builtin_define ("__sparc");               \
  25       builtin_define ("CPU=SIMSPARCSOLARIS");   \
  26       VXWORKS_OS_CPP_BUILTINS ();               \
  27     }                                           \
  28   while (0)
  29
  30 #undef SUBTARGET_OVERRIDE_OPTIONS
  31 #define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS
  32
  33 #undef CPP_SUBTARGET_SPEC
  34 #define CPP_SUBTARGET_SPEC VXWORKS_ADDITIONAL_CPP_SPEC
  35
  36 #undef ASM_SPEC
  37 #define ASM_SPEC "%{" FPIE_OR_FPIC_SPEC ":-K PIC} %(asm_cpu)"
  38
  39 #undef LIB_SPEC
  40 #define LIB_SPEC VXWORKS_LIB_SPEC
  41 #undef LINK_SPEC
  42 #define LINK_SPEC VXWORKS_LINK_SPEC
  43 #undef STARTFILE_SPEC
  44 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
  45 #undef ENDFILE_SPEC
  46 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
  47
  48 #undef FUNCTION_PROFILER
  49 #define FUNCTION_PROFILER VXWORKS_FUNCTION_PROFILER
  50
  51 /* Use standard numbered ctors/dtors sections.  */
  52 #undef CTORS_SECTION_ASM_OP
  53 #undef DTORS_SECTION_ASM_OP
  54
  55 /* We cannot use PC-relative accesses for VxWorks PIC because there is no
  56    fixed gap between segments.  */
  57 #undef ASM_PREFERRED_EH_DATA_FORMAT
  58
  59 /* Define this to be nonzero if static stack checking is supported.  */
  60 #define STACK_CHECK_STATIC_BUILTIN 1
  61
  62 /* This platform supports the probing method of stack checking (RTP mode).
  63    8K is reserved in the stack to propagate exceptions in case of overflow.  */
  64 #define STACK_CHECK_PROTECT 8192