X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fconfig%2Fopenbsd.h;h=59728c377d6c6a27f4b79298bc81bf7990fb8399;hb=fdf7fc97a3e865e27427b9dcb13a8c399609692b;hp=30f2494234121b77dc2976c220d9143ce4841488;hpb=be354a19e7279b98ce016a8d0df806c2bfa64357;p=pf3gnuchains%2Fgcc-fork.git
diff --git a/gcc/config/openbsd.h b/gcc/config/openbsd.h
index 30f24942341..59728c377d6 100644
--- a/gcc/config/openbsd.h
+++ b/gcc/config/openbsd.h
@@ -1,22 +1,21 @@
/* Base configuration file for all OpenBSD targets.
- Copyright (C) 1999 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2004, 2005, 2007 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+. */
/* Common OpenBSD configuration.
All OpenBSD architectures include this file, which is intended as
@@ -52,38 +51,70 @@ 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)
+
+/* TARGET_OS_CPP_BUILTINS() common to all OpenBSD ELF targets. */
+#define OPENBSD_OS_CPP_BUILTINS_ELF() \
+ do \
+ { \
+ OPENBSD_OS_CPP_BUILTINS(); \
+ builtin_define ("__ELF__"); \
+ } \
+while (0)
+
+/* TARGET_OS_CPP_BUILTINS() common to all LP64 OpenBSD targets. */
+#define OPENBSD_OS_CPP_BUILTINS_LP64() \
+ do \
+ { \
+ builtin_define ("_LP64"); \
+ builtin_define ("__LP64__"); \
+ } \
+ 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. */
+#ifdef CPP_CPU_SPEC
+#define OBSD_CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
+#else
#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 "-lc%{pthread:_r}%{p:_p}%{!p:%{pg:_p}}"
+#undef LIB_SPEC
+#define LIB_SPEC OBSD_LIB_SPEC
#ifndef OBSD_HAS_CORRECT_SPECS
@@ -102,24 +133,17 @@ Boston, MA 02111-1307, USA. */
still uses a special flavor of gas that needs to be told when generating
pic code. */
#undef ASM_SPEC
-#define ASM_SPEC "%{fpic:-k} %{fPIC:-k -K} %|"
-#else
-/* Since we use gas, stdin -> - is a good idea, but we don't want to
- override native specs just for that. */
-#ifndef ASM_SPEC
-#define ASM_SPEC "%|"
-#endif
+#define ASM_SPEC "%{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#endif
-/* LINK_SPEC appropriate for OpenBSD. Support for GCC options
- -static, -assert, and -nostdlib. */
-#undef LINK_SPEC
-#ifdef OBSD_NO_DYNAMIC_LIBRARIES
-#define LINK_SPEC \
- "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{assert*}"
-#else
-#define LINK_SPEC \
- "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{R*} %{static:-Bstatic} %{assert*}"
+/* Since we use gas, stdin -> - is a good idea. */
+#define AS_NEEDS_DASH_FOR_PIPED_INPUT
+
+#undef LIB_SPEC
+#define LIB_SPEC OBSD_LIB_SPEC
+
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
#endif
#undef LIB_SPEC
@@ -129,19 +153,8 @@ Boston, MA 02111-1307, USA. */
/* Runtime target specification. */
-/* You must redefine CPP_PREDEFINES in any arch specific file. */
-#undef CPP_PREDEFINES
-
-/* Implicit calls to library routines. */
-
-/* Use memcpy and memset instead of bcopy and bzero. */
-#define TARGET_MEM_FUNCTIONS
-
/* Miscellaneous parameters. */
-/* Tell libgcc2.c that OpenBSD targets support atexit. */
-#define HAVE_ATEXIT
-
/* Controlling debugging info: dbx options. */
/* Don't use the `xsTAG;' construct in DBX output; OpenBSD systems that
@@ -165,13 +178,18 @@ Boston, MA 02111-1307, USA. */
/* OpenBSD assembler is hacked to have .type & .size support even in a.out
format object files. Functions size are supported but not activated
- yet (look for GRACE_PERIOD_EXPIRED in gas/config/obj-aout.c). */
+ yet (look for GRACE_PERIOD_EXPIRED in gas/config/obj-aout.c).
+ SET_ASM_OP is needed for attribute alias to work. */
#undef TYPE_ASM_OP
#undef SIZE_ASM_OP
+#undef SET_ASM_OP
+#undef GLOBAL_ASM_OP
-#define TYPE_ASM_OP ".type"
-#define SIZE_ASM_OP ".size"
+#define TYPE_ASM_OP "\t.type\t"
+#define SIZE_ASM_OP "\t.size\t"
+#define SET_ASM_OP "\t.set\t"
+#define GLOBAL_ASM_OP "\t.globl\t"
/* The following macro defines the format used to output the second
operand of the .type assembler directive. */
@@ -196,11 +214,7 @@ Boston, MA 02111-1307, USA. */
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do { \
- fprintf (FILE, "\t%s\t", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fputs (" , ", FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
- putc ('\n', FILE); \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
} while (0)
@@ -209,38 +223,29 @@ Boston, MA 02111-1307, USA. */
#ifndef OBSD_HAS_DECLARE_FUNCTION_SIZE
/* Declare the size of a function. */
#undef ASM_DECLARE_FUNCTION_SIZE
-#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
- do { \
- if (!flag_inhibit_size_directive) \
- { \
- fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
- assemble_name (FILE, (FNAME)); \
- fputs (" , . - ", FILE); \
- assemble_name (FILE, (FNAME)); \
- putc ('\n', FILE); \
- } \
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
+ do { \
+ if (!flag_inhibit_size_directive) \
+ ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
} while (0)
#endif
#ifndef OBSD_HAS_DECLARE_OBJECT
/* Extra assembler code needed to declare an object properly. */
#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fputs (" , ", FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, " , %d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
- } \
- ASM_OUTPUT_LABEL (FILE, NAME); \
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+ do { \
+ HOST_WIDE_INT size; \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
+ size_directive_output = 0; \
+ if (!flag_inhibit_size_directive \
+ && (DECL) && DECL_SIZE (DECL)) \
+ { \
+ size_directive_output = 1; \
+ size = int_size_in_bytes (TREE_TYPE (DECL)); \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
+ } \
+ ASM_OUTPUT_LABEL (FILE, NAME); \
} while (0)
/* Output the size directive for a decl in rest_of_decl_compilation
@@ -251,16 +256,16 @@ Boston, MA 02111-1307, USA. */
#undef ASM_FINISH_DECLARE_OBJECT
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
do { \
- char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ HOST_WIDE_INT size; \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
&& ! AT_END && TOP_LEVEL \
&& DECL_INITIAL (DECL) == error_mark_node \
&& !size_directive_output) \
{ \
size_directive_output = 1; \
- fprintf (FILE, "\t%s\t", SIZE_ASM_OP); \
- assemble_name (FILE, name); \
- fprintf (FILE, " , %d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
+ size = int_size_in_bytes (TREE_TYPE (DECL)); \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
} \
} while (0)
#endif
@@ -279,30 +284,30 @@ do { \
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while (0)
#endif
-
-/* Tell the assembler that a symbol is global. */
-#ifndef ASM_GLOBALIZE_LABEL
-#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
- do { fputs ("\t.globl\t", FILE); assemble_name (FILE, NAME); \
- fputc ('\n', FILE); } while(0)
-#endif
-
/* Storage layout. */
-/* We don't have to worry about binary compatibility with older C++ code,
- but there is a big known bug with vtable thunks which has not been
- fixed yet, so DON'T activate it by default. */
-/* #define DEFAULT_VTABLE_THUNKS 1 */
-
-/* Otherwise, since we support weak, gthr.h erroneously tries to use
- #pragma weak. */
-#define GTHREAD_USE_WEAK 0
-
/* bug work around: we don't want to support #pragma weak, but the current
code layout needs HANDLE_PRAGMA_WEAK asserted for __attribute((weak)) to
work. On the other hand, we don't define HANDLE_PRAGMA_WEAK directly,
as this depends on a few other details as well... */
-#define HANDLE_SYSV_PRAGMA
-
+#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
+#include