gcc/config/vx-common.h

   1 /* Target-independent configuration for VxWorks and VxWorks AE.
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3    Contributed by by CodeSourcery, LLC.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301, USA.  */
  21
  22 /* VxWorks headers are C++-aware.  */
  23 #undef  NO_IMPLICIT_EXTERN_C
  24 #define NO_IMPLICIT_EXTERN_C
  25
  26 /* Most of these will probably be overridden by subsequent headers.  We
  27    undefine them here just in case, and define VXWORKS_ versions of each,
  28    to be used in port-specific vxworks.h.  */
  29 #undef LIB_SPEC
  30 #undef LINK_SPEC
  31 #undef LIBGCC_SPEC
  32 #define LIBGCC_SPEC VXWORKS_LIBGCC_SPEC
  33 #undef STARTFILE_SPEC
  34 #undef ENDFILE_SPEC
  35
  36 /* Most of these macros are overridden in "config/vxworks.h" or
  37    "config/vxworksae.h" and are here merely for documentation
  38    purposes.  */
  39 #define VXWORKS_ADDITIONAL_CPP_SPEC ""
  40 #define VXWORKS_LIB_SPEC ""
  41 #define VXWORKS_LINK_SPEC ""
  42 #define VXWORKS_LIBGCC_SPEC ""
  43 #define VXWORKS_STARTFILE_SPEC ""
  44 #define VXWORKS_ENDFILE_SPEC ""
  45
  46 /* VxWorks cannot have dots in constructor labels, because it uses a
  47    mutant variation of collect2 that generates C code instead of
  48    assembly.  Thus each constructor label must be a legitimate C
  49    symbol.  FIXME: Have VxWorks use real collect2 instead.  */
  50 #undef NO_DOLLAR_IN_LABEL
  51 #define NO_DOT_IN_LABEL
  52
  53 /* VxWorks uses wchar_t == unsigned short (UCS2) on all architectures.  */
  54 #undef WCHAR_TYPE
  55 #define WCHAR_TYPE "short unsigned int"
  56 #undef WCHAR_TYPE_SIZE
  57 #define WCHAR_TYPE_SIZE 16
  58
  59 /* Dwarf2 unwind info is not supported.  */
  60 #define DWARF2_UNWIND_INFO 0
  61
  62 /* VxWorks uses DWARF2.  */
  63 #define DWARF2_DEBUGGING_INFO 1
  64 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  65
  66 /* None of these other formats is supported.  */
  67 #undef DWARF_DEBUGGING_INFO
  68 #undef DBX_DEBUGGING_INFO
  69 #undef SDB_DEBUGGING_INFO
  70 #undef XCOFF_DEBUGGING_INFO
  71 #undef VMS_DEBUGGING_INFO
  72
  73 /* Kernel mode doesn't have ctors/dtors, but RTP mode does.  */
  74 #define TARGET_HAVE_CTORS_DTORS false
  75 #define VXWORKS_OVERRIDE_OPTIONS /* empty */
  76
  77 /* No math library needed.  */
  78 #define MATH_LIBRARY ""
  79
  80 /* No profiling.  */
  81 #define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do     \
  82 {                                                       \
  83   sorry ("profiler support for VxWorks");               \
  84 } while (0)
  85
  86 /* We occasionally need to distinguish between the VxWorks variants.  */
  87 #define VXWORKS_KIND_NORMAL  1
  88 #define VXWORKS_KIND_AE      2