diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/sol2.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/sol2.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/sol2.h b/gcc-4.2.1-5666.3/gcc/config/sol2.h new file mode 100644 index 000000000..5ffaf5758 --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/sol2.h @@ -0,0 +1,245 @@ +/* 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 |