Disallow negative constant address for x32

[pf3gnuchains/gcc-fork.git] / gcc / config / openbsd.h

diff --git a/gcc/config/openbsd.h b/gcc/config/openbsd.h
index ae08ed8..fad2915 100644 (file)
--- a/gcc/config/openbsd.h
+++ b/gcc/config/openbsd.h
@@ -1,5 +1,5 @@
 /* Base configuration file for all OpenBSD targets.
-   Copyright (C) 1999, 2000, 2004, 2005, 2007, 2009, 2010
+   Copyright (C) 1999, 2000, 2004, 2005, 2007, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -59,7 +59,7 @@ along with GCC; see the file COPYING3.  If not see
     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },    \
     { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1 }, \
     { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1 }, \
-    { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0 }, \
+    { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0 }, \
     { 0, 0, 0, 0 }                             \
   }
 
@@ -281,20 +281,4 @@ do {                                                                        \
 /* Storage layout.  */
 
 \f
-/* 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>
+#define HAVE_ENABLE_EXECUTE_STACK