1 /* Operating system specific defines to be used when targeting GCC for any
3 Copyright 2002, 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 /* We use stabs-in-elf for debugging, because that is what the native
23 #undef PREFERRED_DEBUGGING_TYPE
24 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
26 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */
28 #define WCHAR_TYPE "long int"
30 #undef WCHAR_TYPE_SIZE
31 #define WCHAR_TYPE_SIZE BITS_PER_WORD
33 /* Solaris 2 uses a wint_t different from the default. This is required
34 by the SCD 2.4.1, p. 6-83, Figure 6-66. */
36 #define WINT_TYPE "long int"
39 #define WINT_TYPE_SIZE BITS_PER_WORD
41 #define SIG_ATOMIC_TYPE "int"
43 /* ??? This definition of int8_t follows the system header but does
44 not conform to C99. Likewise int_fast8_t, int_least8_t. */
45 #define INT8_TYPE "char"
46 #define INT16_TYPE "short int"
47 #define INT32_TYPE "int"
48 #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
49 #define UINT8_TYPE "unsigned char"
50 #define UINT16_TYPE "short unsigned int"
51 #define UINT32_TYPE "unsigned int"
52 #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
54 #define INT_LEAST8_TYPE "char"
55 #define INT_LEAST16_TYPE "short int"
56 #define INT_LEAST32_TYPE "int"
57 #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
58 #define UINT_LEAST8_TYPE "unsigned char"
59 #define UINT_LEAST16_TYPE "short unsigned int"
60 #define UINT_LEAST32_TYPE "unsigned int"
61 #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
63 #define INT_FAST8_TYPE "char"
64 #define INT_FAST16_TYPE "int"
65 #define INT_FAST32_TYPE "int"
66 #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
67 #define UINT_FAST8_TYPE "unsigned char"
68 #define UINT_FAST16_TYPE "unsigned int"
69 #define UINT_FAST32_TYPE "unsigned int"
70 #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
72 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
73 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
75 #define TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME 1
77 /* ??? Note: in order for -compat-bsd to work fully,
78 we must somehow arrange to fixincludes /usr/ucbinclude
79 and put the result in $(libsubdir)/ucbinclude. */
81 #undef CPP_SUBTARGET_SPEC
82 #define CPP_SUBTARGET_SPEC "\
83 %{pthreads|pthread:-D_REENTRANT -D_PTHREADS} \
84 %{!pthreads:%{!pthread:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}}} \
85 %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \
88 /* Names to predefine in the preprocessor for this target machine. */
89 #define TARGET_SUB_OS_CPP_BUILTINS()
90 #define TARGET_OS_CPP_BUILTINS() \
92 builtin_define_std ("unix"); \
93 builtin_define_std ("sun"); \
94 builtin_define ("__svr4__"); \
95 builtin_define ("__SVR4"); \
96 builtin_assert ("system=unix"); \
97 builtin_assert ("system=svr4"); \
98 /* For C++ we need to add some additional macro \
99 definitions required by the C++ standard \
101 if (c_dialect_cxx ()) \
103 builtin_define ("_XOPEN_SOURCE=500"); \
104 builtin_define ("_LARGEFILE_SOURCE=1"); \
105 builtin_define ("_LARGEFILE64_SOURCE=1"); \
106 builtin_define ("__EXTENSIONS__"); \
108 TARGET_SUB_OS_CPP_BUILTINS(); \
111 /* The system headers under Solaris 2 are C++-aware since 2.0. */
112 #define NO_IMPLICIT_EXTERN_C
114 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
115 It's safe to pass -s always, even if -g is not used. */
118 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
119 %{fpic|fpie|fPIC|fPIE:-K PIC} \
123 /* We don't use the standard LIB_SPEC only because we don't yet support c++. */
126 "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
129 %{pthreads|pthread:-lpthread} \
130 %{!pthreads:%{!pthread:%{threads:-lthread}}} \
134 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
136 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */
137 #undef STARTFILE_SPEC
138 #define STARTFILE_SPEC "%{!shared: \
142 %{pg:gcrt1.o%s gmon.o%s} \
144 crti.o%s %(startfile_arch) \
147 #undef STARTFILE_ARCH32_SPEC
148 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \
149 %{!ansi:values-Xa.o%s}"
151 #undef STARTFILE_ARCH_SPEC
152 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC
154 #undef LINK_ARCH32_SPEC_BASE
155 #define LINK_ARCH32_SPEC_BASE \
160 %{!YP,*:%{p|pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
161 %{!p:%{!pg:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \
164 %{!YP,*:%{p|pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
165 %{!p:%{!pg:-Y P,/usr/ccs/lib:/usr/lib}}}}"
167 #undef LINK_ARCH32_SPEC
168 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
170 #undef LINK_ARCH_SPEC
171 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC
173 /* This should be the same as in svr4.h, except with -R added. */
178 %{static:-dn -Bstatic} \
179 %{shared:-G -dy %{!mimpure-text:-z text}} \
180 %{symbolic:-Bsymbolic -G -dy -z text} \
184 /* The Solaris linker doesn't understand constructor priorities. (The
185 GNU linker does support constructor priorities, so GNU ld
186 configuration files for Solaris override this setting.) */
187 #undef SUPPORTS_INIT_PRIORITY
188 #define SUPPORTS_INIT_PRIORITY 0
190 /* This defines which switch letters take arguments.
191 It is as in svr4.h but with -R added. */
192 #undef SWITCH_TAKES_ARG
193 #define SWITCH_TAKES_ARG(CHAR) \
194 (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
199 #define STDC_0_IN_SYSTEM_HEADERS 1
202 * Attempt to turn on access permissions for the stack.
204 * _SC_STACK_PROT is only defined for post 2.6, but we want this code
205 * to run always. 2.6 can change the stack protection but has no way to
210 /* sys/mman.h is not present on some non-Solaris configurations
211 that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic
212 number instead of the appropriate PROT_* flags. */
214 #define ENABLE_EXECUTE_STACK \
216 /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \
218 static int need_enable_exec_stack; \
220 static void check_enabling(void) __attribute__ ((constructor)); \
221 static void check_enabling(void) \
223 extern long sysconf(int); \
225 int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \
226 if (prot != 7 /* STACK_PROT_RWX */) \
227 need_enable_exec_stack = 1; \
230 extern void __enable_execute_stack (void *); \
232 __enable_execute_stack (void *addr) \
234 extern int mprotect(void *, size_t, int); \
235 if (!need_enable_exec_stack) \
238 long size = getpagesize (); \
239 long mask = ~(size-1); \
240 char *page = (char *) (((long) addr) & mask); \
241 char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \
243 if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \
244 perror ("mprotect of trampoline code"); \
248 /* Support Solaris-specific format checking for cmn_err. */
249 #define TARGET_N_FORMAT_TYPES 1
250 #define TARGET_FORMAT_TYPES solaris_format_types
252 /* #pragma init and #pragma fini are implemented on top of init and
254 #define SOLARIS_ATTRIBUTE_TABLE \
255 { "init", 0, 0, true, false, false, NULL }, \
256 { "fini", 0, 0, true, false, false, NULL }
258 /* This is how to declare the size of a function. For Solaris, we output
259 any .init or .fini entries here. */
260 #undef ASM_DECLARE_FUNCTION_SIZE
261 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
264 if (!flag_inhibit_size_directive) \
265 ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
266 solaris_output_init_fini (FILE, DECL); \
270 extern GTY(()) tree solaris_pending_aligns
;
271 extern GTY(()) tree solaris_pending_inits
;
272 extern GTY(()) tree solaris_pending_finis
;
274 /* Allow macro expansion in #pragma pack. */
275 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION