1117395Skan/* Operating system specific defines to be used when targeting GCC for any 2117395Skan Solaris 2 system. 3169689Skan Copyright 2002, 2003, 2004 Free Software Foundation, Inc. 4117395Skan 5132718SkanThis file is part of GCC. 6117395Skan 7132718SkanGCC is free software; you can redistribute it and/or modify 8117395Skanit under the terms of the GNU General Public License as published by 9117395Skanthe Free Software Foundation; either version 2, or (at your option) 10117395Skanany later version. 11117395Skan 12132718SkanGCC is distributed in the hope that it will be useful, 13117395Skanbut WITHOUT ANY WARRANTY; without even the implied warranty of 14117395SkanMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15117395SkanGNU General Public License for more details. 16117395Skan 17117395SkanYou should have received a copy of the GNU General Public License 18132718Skanalong with GCC; see the file COPYING. If not, write to 19169689Skanthe Free Software Foundation, 51 Franklin Street, Fifth Floor, 20169689SkanBoston, MA 02110-1301, USA. */ 21117395Skan 22117395Skan/* We use stabs-in-elf for debugging, because that is what the native 23117395Skan toolchain uses. */ 24117395Skan#undef PREFERRED_DEBUGGING_TYPE 25117395Skan#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG 26117395Skan 27117395Skan/* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */ 28117395Skan#undef WCHAR_TYPE 29117395Skan#define WCHAR_TYPE "long int" 30117395Skan 31117395Skan#undef WCHAR_TYPE_SIZE 32117395Skan#define WCHAR_TYPE_SIZE BITS_PER_WORD 33117395Skan 34117395Skan/* Solaris 2 uses a wint_t different from the default. This is required 35117395Skan by the SCD 2.4.1, p. 6-83, Figure 6-66. */ 36117395Skan#undef WINT_TYPE 37117395Skan#define WINT_TYPE "long int" 38117395Skan 39117395Skan#undef WINT_TYPE_SIZE 40117395Skan#define WINT_TYPE_SIZE BITS_PER_WORD 41117395Skan 42169689Skan#define TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME 1 43117395Skan 44117395Skan/* ??? Note: in order for -compat-bsd to work fully, 45117395Skan we must somehow arrange to fixincludes /usr/ucbinclude 46117395Skan and put the result in $(libsubdir)/ucbinclude. */ 47117395Skan 48117395Skan#undef CPP_SUBTARGET_SPEC 49117395Skan#define CPP_SUBTARGET_SPEC "\ 50169689Skan%{pthreads|pthread:-D_REENTRANT -D_PTHREADS} \ 51169689Skan%{!pthreads:%{!pthread:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}}} \ 52117395Skan%{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \ 53117395Skan" 54117395Skan 55117395Skan/* Names to predefine in the preprocessor for this target machine. */ 56132718Skan#define TARGET_SUB_OS_CPP_BUILTINS() 57117395Skan#define TARGET_OS_CPP_BUILTINS() \ 58117395Skan do { \ 59117395Skan builtin_define_std ("unix"); \ 60117395Skan builtin_define_std ("sun"); \ 61117395Skan builtin_define ("__svr4__"); \ 62117395Skan builtin_define ("__SVR4"); \ 63117395Skan builtin_assert ("system=unix"); \ 64117395Skan builtin_assert ("system=svr4"); \ 65132718Skan /* For C++ we need to add some additional macro \ 66117395Skan definitions required by the C++ standard \ 67117395Skan library. */ \ 68132718Skan if (c_dialect_cxx ()) \ 69117395Skan { \ 70117395Skan builtin_define ("_XOPEN_SOURCE=500"); \ 71117395Skan builtin_define ("_LARGEFILE_SOURCE=1"); \ 72117395Skan builtin_define ("_LARGEFILE64_SOURCE=1"); \ 73117395Skan builtin_define ("__EXTENSIONS__"); \ 74117395Skan } \ 75132718Skan TARGET_SUB_OS_CPP_BUILTINS(); \ 76117395Skan } while (0) 77117395Skan 78132718Skan/* The system headers under Solaris 2 are C++-aware since 2.0. */ 79132718Skan#define NO_IMPLICIT_EXTERN_C 80132718Skan 81117395Skan/* The sun bundled assembler doesn't accept -Yd, (and neither does gas). 82117395Skan It's safe to pass -s always, even if -g is not used. */ 83117395Skan#undef ASM_SPEC 84117395Skan#define ASM_SPEC "\ 85117395Skan%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ 86132718Skan%{fpic|fpie|fPIC|fPIE:-K PIC} \ 87117395Skan%(asm_cpu) \ 88117395Skan" 89117395Skan 90117395Skan/* We don't use the standard LIB_SPEC only because we don't yet support c++. */ 91117395Skan#undef LIB_SPEC 92117395Skan#define LIB_SPEC \ 93117395Skan "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \ 94117395Skan %{!shared:\ 95117395Skan %{!symbolic:\ 96169689Skan %{pthreads|pthread:-lpthread} \ 97169689Skan %{!pthreads:%{!pthread:%{threads:-lthread}}} \ 98117395Skan %{p|pg:-ldl} -lc}}" 99117395Skan 100117395Skan#undef ENDFILE_SPEC 101117395Skan#define ENDFILE_SPEC "crtend.o%s crtn.o%s" 102117395Skan 103117395Skan/* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */ 104117395Skan#undef STARTFILE_SPEC 105117395Skan#define STARTFILE_SPEC "%{!shared: \ 106117395Skan %{!symbolic: \ 107117395Skan %{p:mcrt1.o%s} \ 108117395Skan %{!p: \ 109117395Skan %{pg:gcrt1.o%s gmon.o%s} \ 110117395Skan %{!pg:crt1.o%s}}}} \ 111117395Skan crti.o%s %(startfile_arch) \ 112117395Skan crtbegin.o%s" 113117395Skan 114117395Skan#undef STARTFILE_ARCH32_SPEC 115117395Skan#define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \ 116117395Skan %{!ansi:values-Xa.o%s}" 117117395Skan 118117395Skan#undef STARTFILE_ARCH_SPEC 119117395Skan#define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC 120117395Skan 121132718Skan#undef LINK_ARCH32_SPEC_BASE 122132718Skan#define LINK_ARCH32_SPEC_BASE \ 123117395Skan "%{G:-G} \ 124117395Skan %{YP,*} \ 125117395Skan %{R*} \ 126117395Skan %{compat-bsd: \ 127117395Skan %{!YP,*:%{p|pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 128117395Skan %{!p:%{!pg:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \ 129117395Skan -R /usr/ucblib} \ 130117395Skan %{!compat-bsd: \ 131117395Skan %{!YP,*:%{p|pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 132117395Skan %{!p:%{!pg:-Y P,/usr/ccs/lib:/usr/lib}}}}" 133117395Skan 134132718Skan#undef LINK_ARCH32_SPEC 135132718Skan#define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE 136132718Skan 137117395Skan#undef LINK_ARCH_SPEC 138117395Skan#define LINK_ARCH_SPEC LINK_ARCH32_SPEC 139117395Skan 140117395Skan/* This should be the same as in svr4.h, except with -R added. */ 141117395Skan#undef LINK_SPEC 142117395Skan#define LINK_SPEC \ 143117395Skan "%{h*} %{v:-V} \ 144169689Skan %{b} \ 145117395Skan %{static:-dn -Bstatic} \ 146117395Skan %{shared:-G -dy %{!mimpure-text:-z text}} \ 147117395Skan %{symbolic:-Bsymbolic -G -dy -z text} \ 148117395Skan %(link_arch) \ 149117395Skan %{Qy:} %{!Qn:-Qy}" 150117395Skan 151169689Skan/* The Solaris linker doesn't understand constructor priorities. (The 152169689Skan GNU linker does support constructor priorities, so GNU ld 153169689Skan configuration files for Solaris override this setting.) */ 154169689Skan#undef SUPPORTS_INIT_PRIORITY 155169689Skan#define SUPPORTS_INIT_PRIORITY 0 156169689Skan 157117395Skan/* This defines which switch letters take arguments. 158117395Skan It is as in svr4.h but with -R added. */ 159117395Skan#undef SWITCH_TAKES_ARG 160117395Skan#define SWITCH_TAKES_ARG(CHAR) \ 161117395Skan (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ 162117395Skan || (CHAR) == 'R' \ 163117395Skan || (CHAR) == 'h' \ 164117395Skan || (CHAR) == 'z') 165117395Skan 166117395Skan#define STDC_0_IN_SYSTEM_HEADERS 1 167117395Skan 168117395Skan/* 169117395Skan * Attempt to turn on access permissions for the stack. 170117395Skan * 171117395Skan * _SC_STACK_PROT is only defined for post 2.6, but we want this code 172117395Skan * to run always. 2.6 can change the stack protection but has no way to 173117395Skan * query it. 174117395Skan * 175117395Skan */ 176117395Skan 177132718Skan/* sys/mman.h is not present on some non-Solaris configurations 178132718Skan that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic 179132718Skan number instead of the appropriate PROT_* flags. */ 180117395Skan 181132718Skan#define ENABLE_EXECUTE_STACK \ 182117395Skan \ 183117395Skan/* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \ 184117395Skan \ 185117395Skanstatic int need_enable_exec_stack; \ 186117395Skan \ 187117395Skanstatic void check_enabling(void) __attribute__ ((constructor)); \ 188117395Skanstatic void check_enabling(void) \ 189117395Skan{ \ 190117395Skan extern long sysconf(int); \ 191117395Skan \ 192117395Skan int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \ 193117395Skan if (prot != 7 /* STACK_PROT_RWX */) \ 194117395Skan need_enable_exec_stack = 1; \ 195117395Skan} \ 196117395Skan \ 197117395Skanextern void __enable_execute_stack (void *); \ 198117395Skanvoid \ 199132718Skan__enable_execute_stack (void *addr) \ 200117395Skan{ \ 201169689Skan extern int mprotect(void *, size_t, int); \ 202117395Skan if (!need_enable_exec_stack) \ 203117395Skan return; \ 204117395Skan else { \ 205117395Skan long size = getpagesize (); \ 206117395Skan long mask = ~(size-1); \ 207117395Skan char *page = (char *) (((long) addr) & mask); \ 208117395Skan char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ 209117395Skan \ 210117395Skan if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \ 211117395Skan perror ("mprotect of trampoline code"); \ 212117395Skan } \ 213117395Skan} 214169689Skan 215169689Skan/* Support Solaris-specific format checking for cmn_err. */ 216169689Skan#define TARGET_N_FORMAT_TYPES 1 217169689Skan#define TARGET_FORMAT_TYPES solaris_format_types 218169689Skan 219169689Skan/* #pragma init and #pragma fini are implemented on top of init and 220169689Skan fini attributes. */ 221169689Skan#define SOLARIS_ATTRIBUTE_TABLE \ 222169689Skan { "init", 0, 0, true, false, false, NULL }, \ 223169689Skan { "fini", 0, 0, true, false, false, NULL } 224169689Skan 225169689Skan/* This is how to declare the size of a function. For Solaris, we output 226169689Skan any .init or .fini entries here. */ 227169689Skan#undef ASM_DECLARE_FUNCTION_SIZE 228169689Skan#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ 229169689Skan do \ 230169689Skan { \ 231169689Skan if (!flag_inhibit_size_directive) \ 232169689Skan ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \ 233169689Skan solaris_output_init_fini (FILE, DECL); \ 234169689Skan } \ 235169689Skan while (0) 236169689Skan 237169689Skan/* Register the Solaris-specific #pragma directives. */ 238169689Skan#define REGISTER_TARGET_PRAGMAS() solaris_register_pragmas () 239169689Skan 240169689Skanextern GTY(()) tree solaris_pending_aligns; 241169689Skanextern GTY(()) tree solaris_pending_inits; 242169689Skanextern GTY(()) tree solaris_pending_finis; 243169689Skan 244169689Skan/* Allow macro expansion in #pragma pack. */ 245169689Skan#define HANDLE_PRAGMA_PACK_WITH_EXPANSION 246