1 /* Operating system specific defines to be used when targeting GCC for any 2 Solaris 2 system. 3 Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010 4 Free Software Foundation, Inc. 5 6 This file is part of GCC. 7 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) 11 any later version. 12 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. 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 22 /* We use stabs-in-elf for debugging, because that is what the native 23 toolchain uses. */ 24 #undef PREFERRED_DEBUGGING_TYPE 25 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG 26 27 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */ 28 #undef WCHAR_TYPE 29 #define WCHAR_TYPE "long int" 30 31 #undef WCHAR_TYPE_SIZE 32 #define WCHAR_TYPE_SIZE BITS_PER_WORD 33 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. */ 36 #undef WINT_TYPE 37 #define WINT_TYPE "long int" 38 39 #undef WINT_TYPE_SIZE 40 #define WINT_TYPE_SIZE BITS_PER_WORD 41 42 #define SIG_ATOMIC_TYPE "int" 43 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") 54 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") 63 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") 72 73 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int") 74 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int") 75 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. */ 79 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} \ 85 " 86 87 /* Names to predefine in the preprocessor for this target machine. */ 88 #define TARGET_SUB_OS_CPP_BUILTINS() 89 #define TARGET_OS_CPP_BUILTINS() \ 90 do { \ 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 \ 99 library. */ \ 100 if (c_dialect_cxx ()) \ 101 { \ 102 builtin_define ("_XOPEN_SOURCE=500"); \ 103 builtin_define ("_LARGEFILE_SOURCE=1"); \ 104 builtin_define ("_LARGEFILE64_SOURCE=1"); \ 105 builtin_define ("__EXTENSIONS__"); \ 106 } \ 107 TARGET_SUB_OS_CPP_BUILTINS(); \ 108 } while (0) 109 110 /* The system headers under Solaris 2 are C++-aware since 2.0. */ 111 #define NO_IMPLICIT_EXTERN_C 112 113 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas). 114 It's safe to pass -s always, even if -g is not used. */ 115 #undef ASM_SPEC 116 #define ASM_SPEC "\ 117 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ 118 %{fpic|fpie|fPIC|fPIE:-K PIC} \ 119 %(asm_cpu) \ 120 " 121 122 /* We don't use the standard LIB_SPEC only because we don't yet support c++. */ 123 #undef LIB_SPEC 124 #define LIB_SPEC \ 125 "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \ 126 %{!shared:\ 127 %{!symbolic:\ 128 %{pthreads|pthread:-lpthread} \ 129 %{!pthreads:%{!pthread:%{threads:-lthread}}} \ 130 %{p|pg:-ldl} -lc}}" 131 132 #undef ENDFILE_SPEC 133 #define ENDFILE_SPEC "crtend.o%s crtn.o%s" 134 135 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */ 136 #undef STARTFILE_SPEC 137 #define STARTFILE_SPEC "%{!shared: \ 138 %{!symbolic: \ 139 %{p:mcrt1.o%s} \ 140 %{!p: \ 141 %{pg:gcrt1.o%s gmon.o%s} \ 142 %{!pg:crt1.o%s}}}} \ 143 crti.o%s %(startfile_arch) \ 144 crtbegin.o%s" 145 146 #undef STARTFILE_ARCH32_SPEC 147 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \ 148 %{!ansi:values-Xa.o%s}" 149 150 #undef STARTFILE_ARCH_SPEC 151 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC 152 153 #undef LINK_ARCH32_SPEC_BASE 154 #define LINK_ARCH32_SPEC_BASE \ 155 "%{G:-G} \ 156 %{YP,*} \ 157 %{R*} \ 158 %{compat-bsd: \ 159 %{!YP,*:%{p|pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \ 160 %{!p:%{!pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib:%R/usr/lib}}} \ 161 -R %R/usr/ucblib} \ 162 %{!compat-bsd: \ 163 %{!YP,*:%{p|pg:-Y P,%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \ 164 %{!p:%{!pg:-Y P,%R/usr/ccs/lib:%R/usr/lib}}}}" 165 166 #undef LINK_ARCH32_SPEC 167 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE 168 169 #undef LINK_ARCH_SPEC 170 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC 171 172 /* This should be the same as in svr4.h, except with -R added. */ 173 #undef LINK_SPEC 174 #define LINK_SPEC \ 175 "%{h*} %{v:-V} \ 176 %{b} \ 177 %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \ 178 %{static:-dn -Bstatic} \ 179 %{shared:-G -dy %{!mimpure-text:-z text}} \ 180 %{symbolic:-Bsymbolic -G -dy -z text} \ 181 %(link_arch) \ 182 %{Qy:} %{!Qn:-Qy}" 183 184 /* With Sun ld, -rdynamic is a no-op. */ 185 #define RDYNAMIC_SPEC "" 186 187 /* The Solaris linker doesn't understand constructor priorities. (The 188 GNU linker does support constructor priorities, so GNU ld 189 configuration files for Solaris override this setting.) */ 190 #undef SUPPORTS_INIT_PRIORITY 191 #define SUPPORTS_INIT_PRIORITY 0 192 193 /* This defines which switch letters take arguments. 194 It is as in svr4.h but with -R added. */ 195 #undef SWITCH_TAKES_ARG 196 #define SWITCH_TAKES_ARG(CHAR) \ 197 (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ 198 || (CHAR) == 'R' \ 199 || (CHAR) == 'h' \ 200 || (CHAR) == 'z') 201 202 #define STDC_0_IN_SYSTEM_HEADERS 1 203 204 /* 205 * Attempt to turn on access permissions for the stack. 206 * 207 * _SC_STACK_PROT is only defined for post 2.6, but we want this code 208 * to run always. 2.6 can change the stack protection but has no way to 209 * query it. 210 * 211 */ 212 213 /* sys/mman.h is not present on some non-Solaris configurations 214 that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic 215 number instead of the appropriate PROT_* flags. */ 216 217 #define ENABLE_EXECUTE_STACK \ 218 \ 219 /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \ 220 \ 221 static int need_enable_exec_stack; \ 222 \ 223 static void check_enabling(void) __attribute__ ((constructor)); \ 224 static void check_enabling(void) \ 225 { \ 226 extern long sysconf(int); \ 227 \ 228 int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \ 229 if (prot != 7 /* STACK_PROT_RWX */) \ 230 need_enable_exec_stack = 1; \ 231 } \ 232 \ 233 extern void __enable_execute_stack (void *); \ 234 void \ 235 __enable_execute_stack (void *addr) \ 236 { \ 237 extern int mprotect(void *, size_t, int); \ 238 if (!need_enable_exec_stack) \ 239 return; \ 240 else { \ 241 long size = getpagesize (); \ 242 long mask = ~(size-1); \ 243 char *page = (char *) (((long) addr) & mask); \ 244 char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ 245 \ 246 if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \ 247 perror ("mprotect of trampoline code"); \ 248 } \ 249 } 250 251 /* Support Solaris-specific format checking for cmn_err. */ 252 #define TARGET_N_FORMAT_TYPES 1 253 #define TARGET_FORMAT_TYPES solaris_format_types 254 255 /* #pragma init and #pragma fini are implemented on top of init and 256 fini attributes. */ 257 #define SOLARIS_ATTRIBUTE_TABLE \ 258 { "init", 0, 0, true, false, false, NULL }, \ 259 { "fini", 0, 0, true, false, false, NULL } 260 261 /* Solaris/x86 as and gas support the common ELF .section/.pushsection 262 syntax. */ 263 #define PUSHSECTION_FORMAT "\t.pushsection\t%s\n" 264 265 /* This is how to declare the size of a function. For Solaris, we output 266 any .init or .fini entries here. */ 267 #undef ASM_DECLARE_FUNCTION_SIZE 268 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ 269 do \ 270 { \ 271 if (!flag_inhibit_size_directive) \ 272 ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \ 273 solaris_output_init_fini (FILE, DECL); \ 274 } \ 275 while (0) 276 277 /* Solaris 'as' has a bug: a .common directive in .tbss section 278 behaves as .tls_common rather than normal non-TLS .common. */ 279 #undef ASM_OUTPUT_ALIGNED_COMMON 280 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 281 do \ 282 { \ 283 if (TARGET_SUN_TLS \ 284 && in_section \ 285 && ((in_section->common.flags & (SECTION_TLS | SECTION_BSS)) \ 286 == (SECTION_TLS | SECTION_BSS))) \ 287 switch_to_section (bss_section); \ 288 fprintf ((FILE), "%s", COMMON_ASM_OP); \ 289 assemble_name ((FILE), (NAME)); \ 290 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ 291 (SIZE), (ALIGN) / BITS_PER_UNIT); \ 292 } \ 293 while (0) 294 295 #ifndef USE_GAS 296 #undef TARGET_ASM_ASSEMBLE_VISIBILITY 297 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility 298 #endif 299 300 extern GTY(()) tree solaris_pending_aligns; 301 extern GTY(()) tree solaris_pending_inits; 302 extern GTY(()) tree solaris_pending_finis; 303 304 /* Allow macro expansion in #pragma pack. */ 305 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION 306