1 /* Operating system specific defines to be used when targeting GCC for any
3 Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010
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 use stabs-in-elf for debugging, because that is what the native
24 #undef PREFERRED_DEBUGGING_TYPE
25 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
27 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */
29 #define WCHAR_TYPE "long int"
31 #undef WCHAR_TYPE_SIZE
32 #define WCHAR_TYPE_SIZE BITS_PER_WORD
34 /* Solaris 2 uses a wint_t different from the default. This is required
35 by the SCD 2.4.1, p. 6-83, Figure 6-66. */
37 #define WINT_TYPE "long int"
40 #define WINT_TYPE_SIZE BITS_PER_WORD
42 #define SIG_ATOMIC_TYPE "int"
44 /* ??? This definition of int8_t follows the system header but does
45 not conform to C99. Likewise int_fast8_t, int_least8_t. */
46 #define INT8_TYPE "char"
47 #define INT16_TYPE "short int"
48 #define INT32_TYPE "int"
49 #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
50 #define UINT8_TYPE "unsigned char"
51 #define UINT16_TYPE "short unsigned int"
52 #define UINT32_TYPE "unsigned int"
53 #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
55 #define INT_LEAST8_TYPE "char"
56 #define INT_LEAST16_TYPE "short int"
57 #define INT_LEAST32_TYPE "int"
58 #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
59 #define UINT_LEAST8_TYPE "unsigned char"
60 #define UINT_LEAST16_TYPE "short unsigned int"
61 #define UINT_LEAST32_TYPE "unsigned int"
62 #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
64 #define INT_FAST8_TYPE "char"
65 #define INT_FAST16_TYPE "int"
66 #define INT_FAST32_TYPE "int"
67 #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
68 #define UINT_FAST8_TYPE "unsigned char"
69 #define UINT_FAST16_TYPE "unsigned int"
70 #define UINT_FAST32_TYPE "unsigned int"
71 #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
73 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
74 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
76 /* ??? Note: in order for -compat-bsd to work fully,
77 we must somehow arrange to fixincludes /usr/ucbinclude
78 and put the result in $(libsubdir)/ucbinclude. */
80 #undef CPP_SUBTARGET_SPEC
81 #define CPP_SUBTARGET_SPEC "\
82 %{pthreads|pthread:-D_REENTRANT -D_PTHREADS} \
83 %{!pthreads:%{!pthread:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}}} \
84 %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \
87 /* Names to predefine in the preprocessor for this target machine. */
88 #define TARGET_SUB_OS_CPP_BUILTINS()
89 #define TARGET_OS_CPP_BUILTINS() \
91 builtin_define_std ("unix"); \
92 builtin_define_std ("sun"); \
93 builtin_define ("__svr4__"); \
94 builtin_define ("__SVR4"); \
95 builtin_assert ("system=unix"); \
96 builtin_assert ("system=svr4"); \
97 /* For C++ we need to add some additional macro \
98 definitions required by the C++ standard \
100 if (c_dialect_cxx ()) \
102 builtin_define ("__STDC_VERSION__=199901L");\
103 builtin_define ("_XOPEN_SOURCE=600"); \
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,*} -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} \
128 %{pthreads|pthread:" \
129 LIB_THREAD_LDFLAGS_SPEC " -lpthread " LIB_TLS_SPEC "} \
130 %{!pthreads:%{!pthread:%{threads:" \
131 LIB_THREAD_LDFLAGS_SPEC " -lthread}}} \
135 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
137 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */
138 #undef STARTFILE_SPEC
139 #define STARTFILE_SPEC "%{!shared: \
143 %{pg:gcrt1.o%s gmon.o%s} \
145 crti.o%s %(startfile_arch) \
148 #undef STARTFILE_ARCH32_SPEC
149 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \
150 %{!ansi:values-Xa.o%s}"
152 #undef STARTFILE_ARCH_SPEC
153 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC
155 #undef LINK_ARCH32_SPEC_BASE
156 #define LINK_ARCH32_SPEC_BASE \
161 %{!YP,*:%{p|pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \
162 %{!p:%{!pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib:%R/usr/lib}}} \
165 %{!YP,*:%{p|pg:-Y P,%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \
166 %{!p:%{!pg:-Y P,%R/usr/ccs/lib:%R/usr/lib}}}}"
168 #undef LINK_ARCH32_SPEC
169 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
171 #undef LINK_ARCH_SPEC
172 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC
174 /* This should be the same as in svr4.h, except with -R added. */
178 %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
179 %{static:-dn -Bstatic} \
180 %{shared:-G -dy %{!mimpure-text:-z text}} \
181 %{symbolic:-Bsymbolic -G -dy -z text} \
185 /* With Sun ld, -rdynamic is a no-op. */
186 #define RDYNAMIC_SPEC ""
188 /* The Solaris linker doesn't understand constructor priorities. (The
189 GNU linker does support constructor priorities, so GNU ld
190 configuration files for Solaris override this setting.) */
191 #undef SUPPORTS_INIT_PRIORITY
192 #define SUPPORTS_INIT_PRIORITY 0
194 /* collect2.c can only parse GNU nm -n output. Solaris nm needs -png to
195 produce the same format. */
196 #define NM_FLAGS "-png"
198 #define STDC_0_IN_SYSTEM_HEADERS 1
201 * Attempt to turn on access permissions for the stack.
203 * _SC_STACK_PROT is only defined for post 2.6, but we want this code
204 * to run always. 2.6 can change the stack protection but has no way to
209 /* sys/mman.h is not present on some non-Solaris configurations
210 that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic
211 number instead of the appropriate PROT_* flags. */
213 #define ENABLE_EXECUTE_STACK \
215 /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \
217 static int need_enable_exec_stack; \
219 static void check_enabling(void) __attribute__ ((constructor)); \
220 static void check_enabling(void) \
222 extern long sysconf(int); \
224 int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \
225 if (prot != 7 /* STACK_PROT_RWX */) \
226 need_enable_exec_stack = 1; \
229 extern void __enable_execute_stack (void *); \
231 __enable_execute_stack (void *addr) \
233 extern int mprotect(void *, size_t, int); \
234 if (!need_enable_exec_stack) \
237 long size = getpagesize (); \
238 long mask = ~(size-1); \
239 char *page = (char *) (((long) addr) & mask); \
240 char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \
242 if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \
243 perror ("mprotect of trampoline code"); \
247 /* Support Solaris-specific format checking for cmn_err. */
248 #define TARGET_N_FORMAT_TYPES 1
249 #define TARGET_FORMAT_TYPES solaris_format_types
251 /* #pragma init and #pragma fini are implemented on top of init and
253 #define SOLARIS_ATTRIBUTE_TABLE \
254 { "init", 0, 0, true, false, false, NULL }, \
255 { "fini", 0, 0, true, false, false, NULL }
257 /* Solaris/x86 as and gas support the common ELF .section/.pushsection
259 #define PUSHSECTION_FORMAT "\t.pushsection\t%s\n"
261 /* This is how to declare the size of a function. For Solaris, we output
262 any .init or .fini entries here. */
263 #undef ASM_DECLARE_FUNCTION_SIZE
264 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
267 if (!flag_inhibit_size_directive) \
268 ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
269 solaris_output_init_fini (FILE, DECL); \
273 /* Solaris 'as' has a bug: a .common directive in .tbss section
274 behaves as .tls_common rather than normal non-TLS .common. */
275 #undef ASM_OUTPUT_ALIGNED_COMMON
276 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
281 && ((in_section->common.flags & (SECTION_TLS | SECTION_BSS)) \
282 == (SECTION_TLS | SECTION_BSS))) \
283 switch_to_section (bss_section); \
284 fprintf ((FILE), "%s", COMMON_ASM_OP); \
285 assemble_name ((FILE), (NAME)); \
286 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
287 (SIZE), (ALIGN) / BITS_PER_UNIT); \
292 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
293 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
296 extern GTY(()) tree solaris_pending_aligns;
297 extern GTY(()) tree solaris_pending_inits;
298 extern GTY(()) tree solaris_pending_finis;
300 /* Allow macro expansion in #pragma pack. */
301 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION