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comparison gcc/config/vxworks.h @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents f6334be47118
children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 /* Common VxWorks target definitions for GNU compiler. 1 /* Common VxWorks target definitions for GNU compiler.
2 Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2010 2 Copyright (C) 1999-2017 Free Software Foundation, Inc.
3 Free Software Foundation, Inc.
4 Contributed by Wind River Systems. 3 Contributed by Wind River Systems.
5 Rewritten by CodeSourcery, LLC. 4 Rewritten by CodeSourcery, LLC.
6 5
7 This file is part of GCC. 6 This file is part of GCC.
8 7
18 17
19 You should have received a copy of the GNU General Public License 18 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see 19 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */ 20 <http://www.gnu.org/licenses/>. */
22 21
23 /* Assert that we are targetting VxWorks. */ 22 /* Assert that we are targeting VxWorks. */
24 #undef TARGET_VXWORKS 23 #undef TARGET_VXWORKS
25 #define TARGET_VXWORKS 1 24 #define TARGET_VXWORKS 1
25
26 /* If TARGET_VXWORKS7 is undefined, then we're not targeting it. */
27 #ifndef TARGET_VXWORKS7
28 #define TARGET_VXWORKS7 0
29 #endif
26 30
27 /* In kernel mode, VxWorks provides all the libraries itself, as well as 31 /* In kernel mode, VxWorks provides all the libraries itself, as well as
28 the functionality of startup files, etc. In RTP mode, it behaves more 32 the functionality of startup files, etc. In RTP mode, it behaves more
29 like a traditional Unix, with more external files. Most of our specs 33 like a traditional Unix, with more external files. Most of our specs
30 must be aware of the difference. */ 34 must be aware of the difference. */
35 header-file directories (containing <stddef.h>, etc.) come before 39 header-file directories (containing <stddef.h>, etc.) come before
36 the VxWorks system header directories. */ 40 the VxWorks system header directories. */
37 41
38 /* Since we provide a default -isystem, expand -isystem on the command 42 /* Since we provide a default -isystem, expand -isystem on the command
39 line early. */ 43 line early. */
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
40 #undef VXWORKS_ADDITIONAL_CPP_SPEC 61 #undef VXWORKS_ADDITIONAL_CPP_SPEC
41 #define VXWORKS_ADDITIONAL_CPP_SPEC \ 62 #define VXWORKS_ADDITIONAL_CPP_SPEC \
42 "%{!nostdinc: \ 63 "%{!nostdinc: \
43 %{isystem*} -idirafter \ 64 %{isystem*} -idirafter \
44 %{mrtp: %:getenv(WIND_USR /h) \ 65 %{mrtp: %:getenv(WIND_USR /h) \
45 ;: %:getenv(WIND_BASE /target/h)}}" 66 ;: %:getenv(WIND_BASE /target/h)}}"
46 67
68 #endif
69
47 /* The references to __init and __fini will be satisfied by 70 /* The references to __init and __fini will be satisfied by
48 libc_internal.a. */ 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
49 #undef VXWORKS_LIB_SPEC 95 #undef VXWORKS_LIB_SPEC
50 #define VXWORKS_LIB_SPEC \ 96 #define VXWORKS_LIB_SPEC \
51 "%{mrtp:%{shared:-u " USER_LABEL_PREFIX "__init -u " USER_LABEL_PREFIX "__fini} \ 97 "%{mrtp:%{shared:-u " USER_LABEL_PREFIX "__init -u " USER_LABEL_PREFIX "__fini} \
52 %{!shared:%{non-static:-u " USER_LABEL_PREFIX "_STI__6__rtld -ldl} \ 98 %{!shared:%{non-static:-u " USER_LABEL_PREFIX "_STI__6__rtld -ldl} \
53 --start-group -lc -lgcc -lc_internal -lnet -ldsi \ 99 " TLS_SYM " \
54 --end-group}}" 100 --start-group " VXWORKS_LIBS_RTP " --end-group} \
101 " VXWORKS_LIBS_DIR_RTP "}"
55 102
56 /* The no-op spec for "-shared" below is present because otherwise GCC 103 /* The no-op spec for "-shared" below is present because otherwise GCC
57 will treat it as an unrecognized option. */ 104 will treat it as an unrecognized option. */
58 #undef VXWORKS_LINK_SPEC 105 #undef VXWORKS_LINK_SPEC
59 #define VXWORKS_LINK_SPEC \ 106 #define VXWORKS_LINK_SPEC \
70 %{Xbind-now:%{Xbind-lazy: \ 117 %{Xbind-now:%{Xbind-lazy: \
71 %e-Xbind-now and -Xbind-lazy are incompatible}} \ 118 %e-Xbind-now and -Xbind-lazy are incompatible}} \
72 %{mrtp:%{!shared:%{!non-static:-static} \ 119 %{mrtp:%{!shared:%{!non-static:-static} \
73 %{non-static:--force-dynamic --export-dynamic}}}" 120 %{non-static:--force-dynamic --export-dynamic}}}"
74 121
75 /* For VxWorks, the system provides libc_internal.a. This is a superset 122 /* For VxWorks static rtps, the system provides libc_internal.a, a superset
76 of libgcc.a; we want to use it. Make sure not to dynamically export 123 of libgcc.a that we want to use. Make sure not to dynamically export any
77 any of its symbols, though. Always look for libgcc.a first so that 124 of its symbols, though, and always look for libgcc.a first so that we get
78 we get the latest versions of the GNU intrinsics during our builds. */ 125 the latest versions of the GNU intrinsics during our builds. */
79 #undef VXWORKS_LIBGCC_SPEC 126 #undef VXWORKS_LIBGCC_SPEC
80 #define VXWORKS_LIBGCC_SPEC \ 127 #define VXWORKS_LIBGCC_SPEC \
81 "-lgcc %{mrtp:--exclude-libs=libc_internal,libgcc -lc_internal}" 128 "-lgcc %{mrtp:%{!shared:--exclude-libs=libc_internal,libgcc -lc_internal}}"
82 129
83 #undef VXWORKS_STARTFILE_SPEC 130 #undef VXWORKS_STARTFILE_SPEC
84 #define VXWORKS_STARTFILE_SPEC "%{mrtp:%{!shared:-l:crt0.o}}" 131 #define VXWORKS_STARTFILE_SPEC "%{mrtp:%{!shared:-l:crt0.o}}"
85 #define VXWORKS_ENDFILE_SPEC "" 132 #define VXWORKS_ENDFILE_SPEC ""
86 133
87 /* Do VxWorks-specific parts of TARGET_OPTION_OVERRIDE. */ 134 /* Do VxWorks-specific parts of TARGET_OPTION_OVERRIDE. */
135
136 #define VXWORKS_HAVE_TLS (TARGET_VXWORKS7 && TARGET_VXWORKS_RTP)
137
88 #undef VXWORKS_OVERRIDE_OPTIONS 138 #undef VXWORKS_OVERRIDE_OPTIONS
89 #define VXWORKS_OVERRIDE_OPTIONS vxworks_override_options () 139 #define VXWORKS_OVERRIDE_OPTIONS vxworks_override_options ()
90 extern void vxworks_override_options (void); 140 extern void vxworks_override_options (void);
91 141
92 /* Only RTPs support prioritized constructors and destructors: 142 /* Only RTPs support prioritized constructors and destructors:
112 #undef PTRDIFF_TYPE 162 #undef PTRDIFF_TYPE
113 #define PTRDIFF_TYPE "int" 163 #define PTRDIFF_TYPE "int"
114 164
115 #undef SIZE_TYPE 165 #undef SIZE_TYPE
116 #define SIZE_TYPE "unsigned int" 166 #define SIZE_TYPE "unsigned int"
167
168 #undef TARGET_LIBC_HAS_FUNCTION
169 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
117 170
118 /* Both kernels and RTPs have the facilities required by this macro. */ 171 /* Both kernels and RTPs have the facilities required by this macro. */
119 #define TARGET_POSIX_IO 172 #define TARGET_POSIX_IO
120 173
121 /* A VxWorks implementation of TARGET_OS_CPP_BUILTINS. */ 174 /* A VxWorks implementation of TARGET_OS_CPP_BUILTINS. */
127 builtin_assert ("system=unix"); \ 180 builtin_assert ("system=unix"); \
128 if (TARGET_VXWORKS_RTP) \ 181 if (TARGET_VXWORKS_RTP) \
129 builtin_define ("__RTP__"); \ 182 builtin_define ("__RTP__"); \
130 else \ 183 else \
131 builtin_define ("_WRS_KERNEL"); \ 184 builtin_define ("_WRS_KERNEL"); \
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 } \
132 } \ 198 } \
133 while (0) 199 while (0)
134 200
135 #define VXWORKS_KIND VXWORKS_KIND_NORMAL 201 #define VXWORKS_KIND VXWORKS_KIND_NORMAL
136 202