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1 /* Target-independent configuration for VxWorks and VxWorks AE.
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2 Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
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3 Contributed by CodeSourcery, LLC.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 /* VxWorks headers are C++-aware. */
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22 #undef NO_IMPLICIT_EXTERN_C
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23 #define NO_IMPLICIT_EXTERN_C
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24
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25 /* Most of these will probably be overridden by subsequent headers. We
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26 undefine them here just in case, and define VXWORKS_ versions of each,
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27 to be used in port-specific vxworks.h. */
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28 #undef LIB_SPEC
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29 #undef LINK_SPEC
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30 #undef LIBGCC_SPEC
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31 #define LIBGCC_SPEC VXWORKS_LIBGCC_SPEC
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32 #undef STARTFILE_SPEC
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33 #undef ENDFILE_SPEC
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34
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35 /* Most of these macros are overridden in "config/vxworks.h" or
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36 "config/vxworksae.h" and are here merely for documentation
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37 purposes. */
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38 #define VXWORKS_ADDITIONAL_CPP_SPEC ""
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39 #define VXWORKS_LIB_SPEC ""
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40 #define VXWORKS_LINK_SPEC ""
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41 #define VXWORKS_LIBGCC_SPEC ""
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42 #define VXWORKS_STARTFILE_SPEC ""
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43 #define VXWORKS_ENDFILE_SPEC ""
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44
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45 /* VxWorks cannot have dots in constructor labels, because it uses a
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46 mutant variation of collect2 that generates C code instead of
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47 assembly. Thus each constructor label must be a legitimate C
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48 symbol. FIXME: Have VxWorks use real collect2 instead. */
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49 #undef NO_DOLLAR_IN_LABEL
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50 #define NO_DOT_IN_LABEL
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51
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52 /* VxWorks uses wchar_t == unsigned short (UCS2) on all architectures. */
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53 #undef WCHAR_TYPE
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54 #define WCHAR_TYPE "short unsigned int"
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55 #undef WCHAR_TYPE_SIZE
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56 #define WCHAR_TYPE_SIZE 16
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57
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58 /* Likewise wint_t. */
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59 #undef WINT_TYPE
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60 #define WINT_TYPE "short unsigned int"
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61 #undef WINT_TYPE_SIZE
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62 #define WINT_TYPE_SIZE 16
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63
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64 /* Dwarf2 unwind info is not supported. */
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65 #undef DWARF2_UNWIND_INFO
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66 #define DWARF2_UNWIND_INFO 0
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67
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68 /* VxWorks uses DWARF2. */
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69 #define DWARF2_DEBUGGING_INFO 1
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70 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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71
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72 /* None of these other formats is supported. */
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73 #undef DWARF_DEBUGGING_INFO
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74 #undef DBX_DEBUGGING_INFO
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75 #undef SDB_DEBUGGING_INFO
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76 #undef XCOFF_DEBUGGING_INFO
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77 #undef VMS_DEBUGGING_INFO
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78
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79 /* Kernel mode doesn't have ctors/dtors, but RTP mode does. */
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80 #define TARGET_HAVE_CTORS_DTORS false
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81 #define VXWORKS_OVERRIDE_OPTIONS /* empty */
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82
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83 /* No math library needed. */
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84 #define MATH_LIBRARY ""
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85
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86 /* No profiling. */
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87 #define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do \
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88 { \
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89 sorry ("profiler support for VxWorks"); \
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90 } while (0)
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91
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92 /* We occasionally need to distinguish between the VxWorks variants. */
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93 #define VXWORKS_KIND_NORMAL 1
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94 #define VXWORKS_KIND_AE 2
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