| /* Operating system specific defines to be used when targeting GCC for any |
| Solaris 2 system. |
| Copyright 2002, 2003, 2004 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| /* We use stabs-in-elf for debugging, because that is what the native |
| toolchain uses. */ |
| #undef PREFERRED_DEBUGGING_TYPE |
| #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
| |
| /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */ |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "long int" |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE BITS_PER_WORD |
| |
| /* Solaris 2 uses a wint_t different from the default. This is required |
| by the SCD 2.4.1, p. 6-83, Figure 6-66. */ |
| #undef WINT_TYPE |
| #define WINT_TYPE "long int" |
| |
| #undef WINT_TYPE_SIZE |
| #define WINT_TYPE_SIZE BITS_PER_WORD |
| |
| #define TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME 1 |
| |
| /* ??? Note: in order for -compat-bsd to work fully, |
| we must somehow arrange to fixincludes /usr/ucbinclude |
| and put the result in $(libsubdir)/ucbinclude. */ |
| |
| #undef CPP_SUBTARGET_SPEC |
| #define CPP_SUBTARGET_SPEC "\ |
| %{pthreads|pthread:-D_REENTRANT -D_PTHREADS} \ |
| %{!pthreads:%{!pthread:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}}} \ |
| %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \ |
| " |
| |
| /* Names to predefine in the preprocessor for this target machine. */ |
| #define TARGET_SUB_OS_CPP_BUILTINS() |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define_std ("unix"); \ |
| builtin_define_std ("sun"); \ |
| builtin_define ("__svr4__"); \ |
| builtin_define ("__SVR4"); \ |
| builtin_assert ("system=unix"); \ |
| builtin_assert ("system=svr4"); \ |
| /* For C++ we need to add some additional macro \ |
| definitions required by the C++ standard \ |
| library. */ \ |
| if (c_dialect_cxx ()) \ |
| { \ |
| builtin_define ("_XOPEN_SOURCE=500"); \ |
| builtin_define ("_LARGEFILE_SOURCE=1"); \ |
| builtin_define ("_LARGEFILE64_SOURCE=1"); \ |
| builtin_define ("__EXTENSIONS__"); \ |
| } \ |
| TARGET_SUB_OS_CPP_BUILTINS(); \ |
| } while (0) |
| |
| /* The system headers under Solaris 2 are C++-aware since 2.0. */ |
| #define NO_IMPLICIT_EXTERN_C |
| |
| /* The sun bundled assembler doesn't accept -Yd, (and neither does gas). |
| It's safe to pass -s always, even if -g is not used. */ |
| #undef ASM_SPEC |
| #define ASM_SPEC "\ |
| %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ |
| %{fpic|fpie|fPIC|fPIE:-K PIC} \ |
| %(asm_cpu) \ |
| " |
| |
| /* We don't use the standard LIB_SPEC only because we don't yet support c++. */ |
| #undef LIB_SPEC |
| #define LIB_SPEC \ |
| "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \ |
| %{!shared:\ |
| %{!symbolic:\ |
| %{pthreads|pthread:-lpthread} \ |
| %{!pthreads:%{!pthread:%{threads:-lthread}}} \ |
| %{p|pg:-ldl} -lc}}" |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC "crtend.o%s crtn.o%s" |
| |
| /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */ |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC "%{!shared: \ |
| %{!symbolic: \ |
| %{p:mcrt1.o%s} \ |
| %{!p: \ |
| %{pg:gcrt1.o%s gmon.o%s} \ |
| %{!pg:crt1.o%s}}}} \ |
| crti.o%s %(startfile_arch) \ |
| crtbegin.o%s" |
| |
| #undef STARTFILE_ARCH32_SPEC |
| #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \ |
| %{!ansi:values-Xa.o%s}" |
| |
| #undef STARTFILE_ARCH_SPEC |
| #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC |
| |
| #undef LINK_ARCH32_SPEC_BASE |
| #define LINK_ARCH32_SPEC_BASE \ |
| "%{G:-G} \ |
| %{YP,*} \ |
| %{R*} \ |
| %{compat-bsd: \ |
| %{!YP,*:%{p|pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ |
| %{!p:%{!pg:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \ |
| -R /usr/ucblib} \ |
| %{!compat-bsd: \ |
| %{!YP,*:%{p|pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ |
| %{!p:%{!pg:-Y P,/usr/ccs/lib:/usr/lib}}}}" |
| |
| #undef LINK_ARCH32_SPEC |
| #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE |
| |
| #undef LINK_ARCH_SPEC |
| #define LINK_ARCH_SPEC LINK_ARCH32_SPEC |
| |
| /* This should be the same as in svr4.h, except with -R added. */ |
| #undef LINK_SPEC |
| #define LINK_SPEC \ |
| "%{h*} %{v:-V} \ |
| %{b} \ |
| %{static:-dn -Bstatic} \ |
| %{shared:-G -dy %{!mimpure-text:-z text}} \ |
| %{symbolic:-Bsymbolic -G -dy -z text} \ |
| %(link_arch) \ |
| %{Qy:} %{!Qn:-Qy}" |
| |
| /* The Solaris linker doesn't understand constructor priorities. (The |
| GNU linker does support constructor priorities, so GNU ld |
| configuration files for Solaris override this setting.) */ |
| #undef SUPPORTS_INIT_PRIORITY |
| #define SUPPORTS_INIT_PRIORITY 0 |
| |
| /* This defines which switch letters take arguments. |
| It is as in svr4.h but with -R added. */ |
| #undef SWITCH_TAKES_ARG |
| #define SWITCH_TAKES_ARG(CHAR) \ |
| (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ |
| || (CHAR) == 'R' \ |
| || (CHAR) == 'h' \ |
| || (CHAR) == 'z') |
| |
| #define STDC_0_IN_SYSTEM_HEADERS 1 |
| |
| /* |
| * Attempt to turn on access permissions for the stack. |
| * |
| * _SC_STACK_PROT is only defined for post 2.6, but we want this code |
| * to run always. 2.6 can change the stack protection but has no way to |
| * query it. |
| * |
| */ |
| |
| /* sys/mman.h is not present on some non-Solaris configurations |
| that use sol2.h, so ENABLE_EXECUTE_STACK must use a magic |
| number instead of the appropriate PROT_* flags. */ |
| |
| #define ENABLE_EXECUTE_STACK \ |
| \ |
| /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \ |
| \ |
| static int need_enable_exec_stack; \ |
| \ |
| static void check_enabling(void) __attribute__ ((constructor)); \ |
| static void check_enabling(void) \ |
| { \ |
| extern long sysconf(int); \ |
| \ |
| int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \ |
| if (prot != 7 /* STACK_PROT_RWX */) \ |
| need_enable_exec_stack = 1; \ |
| } \ |
| \ |
| extern void __enable_execute_stack (void *); \ |
| void \ |
| __enable_execute_stack (void *addr) \ |
| { \ |
| extern int mprotect(void *, size_t, int); \ |
| if (!need_enable_exec_stack) \ |
| return; \ |
| else { \ |
| long size = getpagesize (); \ |
| long mask = ~(size-1); \ |
| char *page = (char *) (((long) addr) & mask); \ |
| char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ |
| \ |
| if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \ |
| perror ("mprotect of trampoline code"); \ |
| } \ |
| } |
| |
| /* Support Solaris-specific format checking for cmn_err. */ |
| #define TARGET_N_FORMAT_TYPES 1 |
| #define TARGET_FORMAT_TYPES solaris_format_types |
| |
| /* #pragma init and #pragma fini are implemented on top of init and |
| fini attributes. */ |
| #define SOLARIS_ATTRIBUTE_TABLE \ |
| { "init", 0, 0, true, false, false, NULL }, \ |
| { "fini", 0, 0, true, false, false, NULL } |
| |
| /* This is how to declare the size of a function. For Solaris, we output |
| any .init or .fini entries here. */ |
| #undef ASM_DECLARE_FUNCTION_SIZE |
| #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ |
| do \ |
| { \ |
| if (!flag_inhibit_size_directive) \ |
| ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \ |
| solaris_output_init_fini (FILE, DECL); \ |
| } \ |
| while (0) |
| |
| /* Register the Solaris-specific #pragma directives. */ |
| #define REGISTER_TARGET_PRAGMAS() solaris_register_pragmas () |
| |
| extern GTY(()) tree solaris_pending_aligns; |
| extern GTY(()) tree solaris_pending_inits; |
| extern GTY(()) tree solaris_pending_finis; |
| |
| /* Allow macro expansion in #pragma pack. */ |
| #define HANDLE_PRAGMA_PACK_WITH_EXPANSION |
| |
| /* LLVM LOCAL begin */ |
| #ifdef ENABLE_LLVM |
| |
| /* Supporting PIC codegen for solaris targets */ |
| #define LLVM_SET_TARGET_OPTIONS(argvec) \ |
| if (flag_pic) \ |
| argvec.push_back ("--relocation-model=pic"); \ |
| else \ |
| argvec.push_back ("--relocation-model=static"); |
| #endif |
| /* LLVM LOCAL end */ |
