1 /* Operating system specific defines to be used when targeting GCC for any
3 Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
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/>. */
22 /* We are compiling for Solaris 2 now. */
23 #define TARGET_SOLARIS 1
25 /* We use stabs-in-elf for debugging, because that is what the native
27 #undef PREFERRED_DEBUGGING_TYPE
28 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
30 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */
32 #define WCHAR_TYPE "long int"
34 #undef WCHAR_TYPE_SIZE
35 #define WCHAR_TYPE_SIZE BITS_PER_WORD
37 /* Solaris 2 uses a wint_t different from the default. This is required
38 by the SCD 2.4.1, p. 6-83, Figure 6-66. */
40 #define WINT_TYPE "long int"
43 #define WINT_TYPE_SIZE BITS_PER_WORD
45 #define SIG_ATOMIC_TYPE "int"
47 /* ??? This definition of int8_t follows the system header but does
48 not conform to C99. Likewise int_fast8_t, int_least8_t. */
49 #define INT8_TYPE "char"
50 #define INT16_TYPE "short int"
51 #define INT32_TYPE "int"
52 #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
53 #define UINT8_TYPE "unsigned char"
54 #define UINT16_TYPE "short unsigned int"
55 #define UINT32_TYPE "unsigned int"
56 #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
58 #define INT_LEAST8_TYPE "char"
59 #define INT_LEAST16_TYPE "short int"
60 #define INT_LEAST32_TYPE "int"
61 #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
62 #define UINT_LEAST8_TYPE "unsigned char"
63 #define UINT_LEAST16_TYPE "short unsigned int"
64 #define UINT_LEAST32_TYPE "unsigned int"
65 #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
67 #define INT_FAST8_TYPE "char"
68 #define INT_FAST16_TYPE "int"
69 #define INT_FAST32_TYPE "int"
70 #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
71 #define UINT_FAST8_TYPE "unsigned char"
72 #define UINT_FAST16_TYPE "unsigned int"
73 #define UINT_FAST32_TYPE "unsigned int"
74 #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
76 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
77 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
79 /* ??? Note: in order for -compat-bsd to work fully,
80 we must somehow arrange to fixincludes /usr/ucbinclude
81 and put the result in $(libsubdir)/ucbinclude. */
83 #undef CPP_SUBTARGET_SPEC
84 #define CPP_SUBTARGET_SPEC "\
85 %{pthreads|pthread:-D_REENTRANT -D_PTHREADS} \
86 %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \
89 /* Names to predefine in the preprocessor for this target machine. */
90 #define TARGET_SUB_OS_CPP_BUILTINS()
91 #define TARGET_OS_CPP_BUILTINS() \
93 builtin_define_std ("unix"); \
94 builtin_define_std ("sun"); \
95 builtin_define ("__svr4__"); \
96 builtin_define ("__SVR4"); \
97 builtin_assert ("system=unix"); \
98 builtin_assert ("system=svr4"); \
99 /* For C++ we need to add some additional macro \
100 definitions required by the C++ standard \
102 if (c_dialect_cxx ()) \
104 builtin_define ("__STDC_VERSION__=199901L");\
105 builtin_define ("_XOPEN_SOURCE=600"); \
106 builtin_define ("_LARGEFILE_SOURCE=1"); \
107 builtin_define ("_LARGEFILE64_SOURCE=1"); \
108 builtin_define ("__EXTENSIONS__"); \
110 TARGET_SUB_OS_CPP_BUILTINS(); \
113 /* The system headers under Solaris 2 are C++-aware since 2.0. */
114 #define NO_IMPLICIT_EXTERN_C
116 /* It's safe to pass -s always, even if -g is not used. */
119 %{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} -s \
120 %{fpic|fpie|fPIC|fPIE:-K PIC} \
124 #ifndef CROSS_DIRECTORY_STRUCTURE
125 #undef MD_EXEC_PREFIX
126 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
128 #undef MD_STARTFILE_PREFIX
129 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
132 /* We don't use the standard LIB_SPEC only because we don't yet support c++. */
135 "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
137 %{pthreads|pthread:" \
138 LIB_THREAD_LDFLAGS_SPEC " -lpthread " LIB_TLS_SPEC "} \
139 %{fprofile-generate*:" \
140 LIB_THREAD_LDFLAGS_SPEC " " LIB_TLS_SPEC "} \
144 #define ENDFILE_SPEC \
145 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
148 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */
149 #undef STARTFILE_SPEC
150 #define STARTFILE_SPEC "%{!shared: \
154 %{pg:gcrt1.o%s gmon.o%s} \
156 crti.o%s %(startfile_arch) \
159 #undef STARTFILE_ARCH32_SPEC
160 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \
161 %{!ansi:values-Xa.o%s}"
163 #undef STARTFILE_ARCH_SPEC
164 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC
166 #undef LINK_ARCH32_SPEC_BASE
167 #define LINK_ARCH32_SPEC_BASE \
172 %{!YP,*:%{p|pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \
173 %{!p:%{!pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib:%R/usr/lib}}} \
176 %{!YP,*:%{p|pg:-Y P,%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \
177 %{!p:%{!pg:-Y P,%R/usr/ccs/lib:%R/usr/lib}}}}"
179 #undef LINK_ARCH32_SPEC
180 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
182 #undef LINK_ARCH_SPEC
183 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC
188 %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
189 %{static:-dn -Bstatic} \
190 %{shared:-G -dy %{!mimpure-text:-z text}} \
191 %{symbolic:-Bsymbolic -G -dy -z text} \
195 /* With Sun ld, -rdynamic is a no-op. */
196 #define RDYNAMIC_SPEC ""
198 /* The Solaris linker doesn't understand constructor priorities. (The
199 GNU linker does support constructor priorities, so GNU ld
200 configuration files for Solaris override this setting.) */
201 #undef SUPPORTS_INIT_PRIORITY
202 #define SUPPORTS_INIT_PRIORITY 0
204 /* collect2.c can only parse GNU nm -n output. Solaris nm needs -png to
205 produce the same format. */
206 #define NM_FLAGS "-png"
208 #define STDC_0_IN_SYSTEM_HEADERS 1
211 * Attempt to turn on access permissions for the stack.
213 * _SC_STACK_PROT is only defined for post 2.6, but we want this code
214 * to run always. 2.6 can change the stack protection but has no way to
219 /* sys/mman.h is not present on some non-Solaris configurations
220 that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic
221 number instead of the appropriate PROT_* flags. */
223 #define ENABLE_EXECUTE_STACK \
225 /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \
227 static int need_enable_exec_stack; \
229 static void check_enabling(void) __attribute__ ((constructor)); \
230 static void check_enabling(void) \
232 extern long sysconf(int); \
234 int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \
235 if (prot != 7 /* STACK_PROT_RWX */) \
236 need_enable_exec_stack = 1; \
239 extern void __enable_execute_stack (void *); \
241 __enable_execute_stack (void *addr) \
243 extern int mprotect(void *, size_t, int); \
244 if (!need_enable_exec_stack) \
247 long size = getpagesize (); \
248 long mask = ~(size-1); \
249 char *page = (char *) (((long) addr) & mask); \
250 char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \
252 if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \
253 perror ("mprotect of trampoline code"); \
257 /* Support Solaris-specific format checking for cmn_err. */
258 #define TARGET_N_FORMAT_TYPES 1
259 #define TARGET_FORMAT_TYPES solaris_format_types
261 /* #pragma init and #pragma fini are implemented on top of init and
263 #define SOLARIS_ATTRIBUTE_TABLE \
264 { "init", 0, 0, true, false, false, NULL, false }, \
265 { "fini", 0, 0, true, false, false, NULL, false }
267 /* Solaris/x86 as and gas support unquoted section names. */
268 #define SECTION_NAME_FORMAT "%s"
270 /* This is how to declare the size of a function. For Solaris, we output
271 any .init or .fini entries here. */
272 #undef ASM_DECLARE_FUNCTION_SIZE
273 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
276 if (!flag_inhibit_size_directive) \
277 ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
278 solaris_output_init_fini (FILE, DECL); \
282 /* Solaris 'as' has a bug: a .common directive in .tbss or .tdata section
283 behaves as .tls_common rather than normal non-TLS .common. */
284 #undef ASM_OUTPUT_ALIGNED_COMMON
285 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
290 && ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \
291 switch_to_section (bss_section); \
292 fprintf ((FILE), "%s", COMMON_ASM_OP); \
293 assemble_name ((FILE), (NAME)); \
294 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
295 (SIZE), (ALIGN) / BITS_PER_UNIT); \
300 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
301 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
303 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
307 extern GTY(()) tree solaris_pending_aligns;
308 extern GTY(()) tree solaris_pending_inits;
309 extern GTY(()) tree solaris_pending_finis;
311 /* Allow macro expansion in #pragma pack. */
312 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION
314 #define TARGET_POSIX_IO