annotate gcc/config/i386/vxworks.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 /* IA32 VxWorks target definitions for GNU compiler.
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2 Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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3 Updated 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
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 #define HANDLE_SYSV_PRAGMA 1
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22
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23 #undef TARGET_VERSION
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24 #define TARGET_VERSION fprintf (stderr, " (80586, VxWorks syntax)");
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25
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26 #undef ASM_SPEC
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27 #define ASM_SPEC "%{v:-v} %{Qy:} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
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28
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29 #define TARGET_OS_CPP_BUILTINS() \
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30 do \
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31 { \
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32 VXWORKS_OS_CPP_BUILTINS (); \
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33 if (TARGET_386) \
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34 builtin_define ("CPU=I80386"); \
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35 else if (TARGET_486) \
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36 builtin_define ("CPU=I80486"); \
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37 else if (TARGET_PENTIUM) \
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38 { \
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39 builtin_define ("CPU=PENTIUM"); \
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40 builtin_define ("CPU_VARIANT=PENTIUM"); \
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41 } \
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42 else if (TARGET_PENTIUMPRO) \
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43 { \
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44 builtin_define ("CPU=PENTIUM2"); \
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45 builtin_define ("CPU_VARIANT=PENTIUMPRO"); \
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46 } \
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47 else if (TARGET_PENTIUM4) \
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48 { \
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49 builtin_define ("CPU=PENTIUM4"); \
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50 builtin_define ("CPU_VARIANT=PENTIUM4"); \
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51 } \
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52 } \
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53 while (0)
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54
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55 #undef CPP_SPEC
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56 #define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC
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57 #undef LIB_SPEC
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58 #define LIB_SPEC VXWORKS_LIB_SPEC
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59 #undef STARTFILE_SPEC
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60 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
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61 #undef ENDFILE_SPEC
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62 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
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63 #undef LINK_SPEC
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64 #define LINK_SPEC VXWORKS_LINK_SPEC
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65
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66 #undef SUBTARGET_SWITCHES
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67 #define SUBTARGET_SWITCHES EXTRA_SUBTARGET_SWITCHES
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68
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69 #undef SUBTARGET_OVERRIDE_OPTIONS
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70 #define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS
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71
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72 /* No _mcount profiling on VxWorks. */
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73 #undef FUNCTION_PROFILER
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74 #define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)
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75
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76 /* We cannot use PC-relative accesses for VxWorks PIC because there is no
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77 fixed gap between segments. */
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78 #undef ASM_PREFERRED_EH_DATA_FORMAT