diff options
Diffstat (limited to 'contrib/gcc/config/openbsd.h')
| -rw-r--r-- | contrib/gcc/config/openbsd.h | 67 |
1 files changed, 47 insertions, 20 deletions
diff --git a/contrib/gcc/config/openbsd.h b/contrib/gcc/config/openbsd.h index 670a0a0..68eb948 100644 --- a/contrib/gcc/config/openbsd.h +++ b/contrib/gcc/config/openbsd.h @@ -1,5 +1,5 @@ /* Base configuration file for all OpenBSD targets. - Copyright (C) 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. @@ -15,8 +15,8 @@ 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. */ +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ /* Common OpenBSD configuration. All OpenBSD architectures include this file, which is intended as @@ -52,29 +52,41 @@ Boston, MA 02111-1307, USA. */ #ifdef OPENBSD_NATIVE -#undef GCC_INCLUDE_DIR -#define GCC_INCLUDE_DIR "/usr/include" - /* The compiler is configured with ONLY the gcc/g++ standard headers. */ #undef INCLUDE_DEFAULTS #define INCLUDE_DEFAULTS \ { \ { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \ - { GCC_INCLUDE_DIR, "GCC", 0, 0 }, \ + { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1 }, \ + { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1 }, \ + { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0 }, \ { 0, 0, 0, 0 } \ } /* Under OpenBSD, the normal location of the various *crt*.o files is the /usr/lib directory. */ -#define STANDARD_STARTFILE_PREFIX "/usr/lib/" +#undef STANDARD_STARTFILE_PREFIX +#define STANDARD_STARTFILE_PREFIX "/usr/local/lib/" #endif /* Controlling the compilation driver. */ +/* TARGET_OS_CPP_BUILTINS() common to all OpenBSD targets. */ +#define OPENBSD_OS_CPP_BUILTINS() \ + do \ + { \ + builtin_define ("__OpenBSD__"); \ + builtin_define ("__unix__"); \ + builtin_define ("__ANSI_COMPAT"); \ + builtin_assert ("system=unix"); \ + builtin_assert ("system=bsd"); \ + builtin_assert ("system=OpenBSD"); \ + } \ + while (0) /* CPP_SPEC appropriate for OpenBSD. We deal with -posix and -pthread. - XXX the way threads are handling currently is not very satisfying, + XXX the way threads are handled currently is not very satisfying, since all code must be compiled with -pthread to work. This two-stage defines makes it easy to pick that for targets that have subspecs. */ @@ -84,10 +96,15 @@ Boston, MA 02111-1307, USA. */ #define OBSD_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}" #endif -/* LIB_SPEC appropriate for OpenBSD. Select the appropriate libc, - depending on profiling and threads. Basically, - -lc(_r)?(_p)?, select _r for threads, and _p for p or pg. */ -#define OBSD_LIB_SPEC "%{!shared:-lc%{pthread:_r}%{p:_p}%{!p:%{pg:_p}}}" +/* LIB_SPEC appropriate for OpenBSD. */ +#ifdef HAS_LIBC_R +/* -lc(_r)?(_p)?, select _r for threads, and _p for p or pg. */ +# define OBSD_LIB_SPEC "%{!shared:-lc%{pthread:_r}%{p:_p}%{!p:%{pg:_p}}}" +#else +/* Include -lpthread if -pthread is specified on the command line. */ +# define OBSD_LIB_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}" +#endif + #ifndef OBSD_HAS_CORRECT_SPECS @@ -130,13 +147,6 @@ Boston, MA 02111-1307, USA. */ /* Runtime target specification. */ -/* Implicit calls to library routines. */ - -/* Use memcpy and memset instead of bcopy and bzero. */ -#ifndef TARGET_MEM_FUNCTIONS -#define TARGET_MEM_FUNCTIONS -#endif - /* Miscellaneous parameters. */ /* Controlling debugging info: dbx options. */ @@ -282,3 +292,20 @@ do { \ as this depends on a few other details as well... */ #define HANDLE_SYSV_PRAGMA 1 +/* Stack is explicitly denied execution rights on OpenBSD platforms. */ +#define ENABLE_EXECUTE_STACK \ +extern void __enable_execute_stack (void *); \ +void \ +__enable_execute_stack (void *addr) \ +{ \ + 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, PROT_READ | PROT_WRITE | PROT_EXEC) < 0) \ + perror ("mprotect of trampoline code"); \ +} + +#include <sys/types.h> +#include <sys/mman.h> |
