/* Operating system specific defines to be used when targeting GCC for any Solaris 2 system. Copyright 2002, 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 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:-D_REENTRANT -D_PTHREADS} \ %{!pthreads:%{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_define ("__PRAGMA_REDEFINE_EXTNAME"); \ 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:-lpthread} \ %{!pthreads:%{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} %{Wl,*:%*} \ %{static:-dn -Bstatic} \ %{shared:-G -dy %{!mimpure-text:-z text}} \ %{symbolic:-Bsymbolic -G -dy -z text} \ %(link_arch) \ %{Qy:} %{!Qn:-Qy}" /* 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. * * This code must be defined when compiling gcc but not when compiling * libgcc2.a, unless we're generating code for 64-bit SPARC * * _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 TRANSFER_FROM_TRAMPOLINE must use a magic number instead of the appropriate PROT_* flags. */ #define TRANSFER_FROM_TRAMPOLINE \ \ /* #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) \ { \ 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"); \ } \ }