Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/vxworks.h @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | f6334be47118 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Common VxWorks target definitions for GNU compiler. |
| 111 | 2 Copyright (C) 1999-2017 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Wind River Systems. |
| 4 Rewritten by CodeSourcery, LLC. | |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it under | |
| 9 the terms of the GNU General Public License as published by the Free | |
| 10 Software Foundation; either version 3, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 111 | 22 /* Assert that we are targeting VxWorks. */ |
| 0 | 23 #undef TARGET_VXWORKS |
| 24 #define TARGET_VXWORKS 1 | |
| 25 | |
| 111 | 26 /* If TARGET_VXWORKS7 is undefined, then we're not targeting it. */ |
| 27 #ifndef TARGET_VXWORKS7 | |
| 28 #define TARGET_VXWORKS7 0 | |
| 29 #endif | |
| 30 | |
| 0 | 31 /* In kernel mode, VxWorks provides all the libraries itself, as well as |
| 32 the functionality of startup files, etc. In RTP mode, it behaves more | |
| 33 like a traditional Unix, with more external files. Most of our specs | |
| 34 must be aware of the difference. */ | |
| 35 | |
| 36 /* We look for the VxWorks header files using the environment | |
| 37 variables that are set in VxWorks to indicate the location of the | |
| 38 system header files. We use -idirafter so that the GCC's own | |
| 39 header-file directories (containing <stddef.h>, etc.) come before | |
| 40 the VxWorks system header directories. */ | |
| 41 | |
| 42 /* Since we provide a default -isystem, expand -isystem on the command | |
| 43 line early. */ | |
| 111 | 44 #if TARGET_VXWORKS7 |
| 45 | |
| 46 #undef VXWORKS_ADDITIONAL_CPP_SPEC | |
| 47 #define VXWORKS_ADDITIONAL_CPP_SPEC \ | |
| 48 "%{!nostdinc: \ | |
| 49 %{isystem*} \ | |
| 50 %{mrtp: -idirafter %:getenv(VSB_DIR /h) \ | |
| 51 -idirafter %:getenv(VSB_DIR /share/h) \ | |
| 52 -idirafter %:getenv(VSB_DIR /usr/h/public) \ | |
| 53 -idirafter %:getenv(VSB_DIR /usr/h) \ | |
| 54 ;: -idirafter %:getenv(VSB_DIR /h) \ | |
| 55 -idirafter %:getenv(VSB_DIR /share/h) \ | |
| 56 -idirafter %:getenv(VSB_DIR /krnl/h/system) \ | |
| 57 -idirafter %:getenv(VSB_DIR /krnl/h/public)}}" | |
| 58 | |
| 59 #else /* TARGET_VXWORKS7 */ | |
| 60 | |
| 0 | 61 #undef VXWORKS_ADDITIONAL_CPP_SPEC |
| 62 #define VXWORKS_ADDITIONAL_CPP_SPEC \ | |
| 63 "%{!nostdinc: \ | |
| 64 %{isystem*} -idirafter \ | |
| 65 %{mrtp: %:getenv(WIND_USR /h) \ | |
| 66 ;: %:getenv(WIND_BASE /target/h)}}" | |
| 67 | |
| 111 | 68 #endif |
| 69 | |
| 0 | 70 /* The references to __init and __fini will be satisfied by |
| 111 | 71 libc_internal.a, and some versions of VxWorks rely on explicit |
| 72 extra libraries for system calls. */ | |
| 73 | |
| 74 #define VXWORKS_SYSCALL_LIBS_RTP | |
| 75 | |
| 76 #define VXWORKS_LIBS_RTP \ | |
| 77 VXWORKS_SYSCALL_LIBS_RTP " -lc -lgcc -lc_internal -lnet -ldsi" | |
| 78 | |
| 79 /* On Vx6 and previous, the libraries to pick up depends on the architecture, | |
| 80 so cannot be defined for all archs at once. On Vx7, a VSB is always needed | |
| 81 and its structure is fixed and does not depend on the arch. We can thus | |
| 82 tell gcc where to look for when linking with RTP libraries. */ | |
| 83 | |
| 84 /* On Vx7 RTP, we need to drag the __tls__ symbol to trigger initialization of | |
| 85 tlsLib, responsible for TLS support by the OS. */ | |
| 86 | |
| 87 #if TARGET_VXWORKS7 | |
| 88 #define VXWORKS_LIBS_DIR_RTP "-L%:getenv(VSB_DIR /usr/lib/common)" | |
| 89 #define TLS_SYM "-u __tls__" | |
| 90 #else | |
| 91 #define VXWORKS_LIBS_DIR_RTP "" | |
| 92 #define TLS_SYM "" | |
| 93 #endif | |
| 94 | |
| 0 | 95 #undef VXWORKS_LIB_SPEC |
| 96 #define VXWORKS_LIB_SPEC \ | |
| 97 "%{mrtp:%{shared:-u " USER_LABEL_PREFIX "__init -u " USER_LABEL_PREFIX "__fini} \ | |
| 98 %{!shared:%{non-static:-u " USER_LABEL_PREFIX "_STI__6__rtld -ldl} \ | |
| 111 | 99 " TLS_SYM " \ |
| 100 --start-group " VXWORKS_LIBS_RTP " --end-group} \ | |
| 101 " VXWORKS_LIBS_DIR_RTP "}" | |
| 0 | 102 |
| 103 /* The no-op spec for "-shared" below is present because otherwise GCC | |
| 104 will treat it as an unrecognized option. */ | |
| 105 #undef VXWORKS_LINK_SPEC | |
| 106 #define VXWORKS_LINK_SPEC \ | |
| 107 "%{!mrtp:-r} \ | |
| 108 %{!shared: \ | |
| 109 %{mrtp:-q %{h*} \ | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
110 %{R*} %{!T*: %(link_start) } \ |
| 0 | 111 %(link_target) %(link_os)}} \ |
| 112 %{v:-v} \ | |
| 113 %{shared:-shared} \ | |
| 114 %{Bstatic:-Bstatic} \ | |
| 115 %{Bdynamic:-Bdynamic} \ | |
| 116 %{!Xbind-lazy:-z now} \ | |
| 117 %{Xbind-now:%{Xbind-lazy: \ | |
| 118 %e-Xbind-now and -Xbind-lazy are incompatible}} \ | |
| 119 %{mrtp:%{!shared:%{!non-static:-static} \ | |
| 120 %{non-static:--force-dynamic --export-dynamic}}}" | |
| 121 | |
| 111 | 122 /* For VxWorks static rtps, the system provides libc_internal.a, a superset |
| 123 of libgcc.a that we want to use. Make sure not to dynamically export any | |
| 124 of its symbols, though, and always look for libgcc.a first so that we get | |
| 125 the latest versions of the GNU intrinsics during our builds. */ | |
| 0 | 126 #undef VXWORKS_LIBGCC_SPEC |
| 127 #define VXWORKS_LIBGCC_SPEC \ | |
| 111 | 128 "-lgcc %{mrtp:%{!shared:--exclude-libs=libc_internal,libgcc -lc_internal}}" |
| 0 | 129 |
| 130 #undef VXWORKS_STARTFILE_SPEC | |
| 131 #define VXWORKS_STARTFILE_SPEC "%{mrtp:%{!shared:-l:crt0.o}}" | |
| 132 #define VXWORKS_ENDFILE_SPEC "" | |
| 133 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
134 /* Do VxWorks-specific parts of TARGET_OPTION_OVERRIDE. */ |
| 111 | 135 |
| 136 #define VXWORKS_HAVE_TLS (TARGET_VXWORKS7 && TARGET_VXWORKS_RTP) | |
| 137 | |
| 0 | 138 #undef VXWORKS_OVERRIDE_OPTIONS |
| 139 #define VXWORKS_OVERRIDE_OPTIONS vxworks_override_options () | |
| 140 extern void vxworks_override_options (void); | |
| 141 | |
| 142 /* Only RTPs support prioritized constructors and destructors: | |
| 143 the implementation relies on numbered .ctors* sections. */ | |
| 144 #define SUPPORTS_INIT_PRIORITY TARGET_VXWORKS_RTP | |
| 145 | |
| 146 /* VxWorks requires special handling of constructors and destructors. | |
| 147 All VxWorks configurations must use these functions. */ | |
| 148 #undef TARGET_ASM_CONSTRUCTOR | |
| 149 #define TARGET_ASM_CONSTRUCTOR vxworks_asm_out_constructor | |
| 150 #undef TARGET_ASM_DESTRUCTOR | |
| 151 #define TARGET_ASM_DESTRUCTOR vxworks_asm_out_destructor | |
| 152 extern void vxworks_asm_out_constructor (rtx symbol, int priority); | |
| 153 extern void vxworks_asm_out_destructor (rtx symbol, int priority); | |
| 154 | |
| 155 /* Override the vxworks-dummy.h definitions. TARGET_VXWORKS_RTP | |
| 156 is defined by vxworks.opt. */ | |
| 157 #undef VXWORKS_GOTT_BASE | |
| 158 #define VXWORKS_GOTT_BASE "__GOTT_BASE__" | |
| 159 #undef VXWORKS_GOTT_INDEX | |
| 160 #define VXWORKS_GOTT_INDEX "__GOTT_INDEX__" | |
| 161 | |
| 162 #undef PTRDIFF_TYPE | |
| 163 #define PTRDIFF_TYPE "int" | |
| 164 | |
| 165 #undef SIZE_TYPE | |
| 166 #define SIZE_TYPE "unsigned int" | |
| 167 | |
| 111 | 168 #undef TARGET_LIBC_HAS_FUNCTION |
| 169 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function | |
| 170 | |
| 0 | 171 /* Both kernels and RTPs have the facilities required by this macro. */ |
| 172 #define TARGET_POSIX_IO | |
| 173 | |
| 174 /* A VxWorks implementation of TARGET_OS_CPP_BUILTINS. */ | |
| 175 #define VXWORKS_OS_CPP_BUILTINS() \ | |
| 176 do \ | |
| 177 { \ | |
| 178 builtin_define ("__vxworks"); \ | |
| 179 builtin_define ("__VXWORKS__"); \ | |
| 180 builtin_assert ("system=unix"); \ | |
| 181 if (TARGET_VXWORKS_RTP) \ | |
| 182 builtin_define ("__RTP__"); \ | |
| 183 else \ | |
| 184 builtin_define ("_WRS_KERNEL"); \ | |
| 111 | 185 builtin_define ("_VX_TOOL_FAMILY=gnu"); \ |
| 186 builtin_define ("_VX_TOOL=gnu"); \ | |
| 187 if (TARGET_VXWORKS7) \ | |
| 188 { \ | |
| 189 builtin_define ("_VSB_CONFIG_FILE=<config/vsbConfig.h>"); \ | |
| 190 \ | |
| 191 /* _ALLOW_KEYWORD_MACROS is needed on VxWorks 7 to \ | |
| 192 prevent compilation failures triggered by our \ | |
| 193 definition of "inline" in ansidecl when "inline" \ | |
| 194 is not a keyword. */ \ | |
| 195 if (!flag_isoc99 && !c_dialect_cxx()) \ | |
| 196 builtin_define ("_ALLOW_KEYWORD_MACROS"); \ | |
| 197 } \ | |
| 0 | 198 } \ |
| 199 while (0) | |
| 200 | |
| 201 #define VXWORKS_KIND VXWORKS_KIND_NORMAL | |
| 202 | |
| 203 /* The diab linker does not handle .gnu_attribute sections. */ | |
| 204 #undef HAVE_AS_GNU_ATTRIBUTE |