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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [sol2.h] - Rev 283
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/* Operating system specific defines to be used when targeting GCC for any Solaris 2 system. Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010 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 3, 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 COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* 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 SIG_ATOMIC_TYPE "int" /* ??? This definition of int8_t follows the system header but does not conform to C99. Likewise int_fast8_t, int_least8_t. */ #define INT8_TYPE "char" #define INT16_TYPE "short int" #define INT32_TYPE "int" #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int") #define UINT8_TYPE "unsigned char" #define UINT16_TYPE "short unsigned int" #define UINT32_TYPE "unsigned int" #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int") #define INT_LEAST8_TYPE "char" #define INT_LEAST16_TYPE "short int" #define INT_LEAST32_TYPE "int" #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int") #define UINT_LEAST8_TYPE "unsigned char" #define UINT_LEAST16_TYPE "short unsigned int" #define UINT_LEAST32_TYPE "unsigned int" #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int") #define INT_FAST8_TYPE "char" #define INT_FAST16_TYPE "int" #define INT_FAST32_TYPE "int" #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int") #define UINT_FAST8_TYPE "unsigned char" #define UINT_FAST16_TYPE "unsigned int" #define UINT_FAST32_TYPE "unsigned int" #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int") #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int") #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int") /* ??? 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,%R/usr/ucblib:%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \ %{!p:%{!pg:-Y P,%R/usr/ucblib:%R/usr/ccs/lib:%R/usr/lib}}} \ -R %R/usr/ucblib} \ %{!compat-bsd: \ %{!YP,*:%{p|pg:-Y P,%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/usr/lib} \ %{!p:%{!pg:-Y P,%R/usr/ccs/lib:%R/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} \ %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \ %{static:-dn -Bstatic} \ %{shared:-G -dy %{!mimpure-text:-z text}} \ %{symbolic:-Bsymbolic -G -dy -z text} \ %(link_arch) \ %{Qy:} %{!Qn:-Qy}" /* With Sun ld, -rdynamic is a no-op. */ #define RDYNAMIC_SPEC "" /* 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 } /* Solaris/x86 as and gas support the common ELF .section/.pushsection syntax. */ #define PUSHSECTION_FORMAT "\t.pushsection\t%s\n" /* 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) /* Solaris 'as' has a bug: a .common directive in .tbss section behaves as .tls_common rather than normal non-TLS .common. */ #undef ASM_OUTPUT_ALIGNED_COMMON #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ do \ { \ if (TARGET_SUN_TLS \ && in_section \ && ((in_section->common.flags & (SECTION_TLS | SECTION_BSS)) \ == (SECTION_TLS | SECTION_BSS))) \ switch_to_section (bss_section); \ fprintf ((FILE), "%s", COMMON_ASM_OP); \ assemble_name ((FILE), (NAME)); \ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ (SIZE), (ALIGN) / BITS_PER_UNIT); \ } \ while (0) #ifndef USE_GAS #undef TARGET_ASM_ASSEMBLE_VISIBILITY #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility #endif 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
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