* src/closures.c: Include sys/statfs.h.

	(_GNU_SOURCE): Define on Linux.
	(FFI_MMAP_EXEC_SELINUX): Define.
	(selinux_enabled): New variable.
	(selinux_enabled_check): New function.
	(is_selinux_enabled): Define.
	(dlmmap): Use it.

	* configure.ac (NO_EXECUTE_PERMISSION): Set by default.
	* configure: Rebuilt.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123457 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/ChangeLog b/ChangeLog
index 89cabf0e88af46f0eb00483bc0af3cc911822fac..aad88393f8ade447cb9ead020dd631d1b242ebb0 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-04-03  Jakub Jelinek  <jakub@redhat.com>
+
+       * configure.ac (NO_EXECUTE_PERMISSION): Set by default.
+       * configure: Rebuilt.
+
 2007-03-07  Alexandre Oliva  <aoliva@redhat.com>
 
        * include/gc.h (GC_REGISTER_FINALIZER_UNREACHABLE): New.

diff --git a/configure b/configure
index 8d34fbdf1e68d5c90a7f6ff86273fa77072d5dd1..c13c8ec89c4c038508e74f9f19afd49013a145e4 100755 (executable)
--- a/configure
+++ b/configure
@@ -6826,11 +6826,9 @@ LIBS="$oldLIBS"
 
 # Configuration of machine-dependent code
 #
-# We don't set NO_EXECUTE_PERMISSION by default because gcj (and
-# anything else that creates trampolines in gc-allocated memory)
-# always needs exec permission.  The exceptions to this are IA-64 and
-# some variations of Power PC, where trampolines don't contain
-# executable code.
+# Set NO_EXECUTE_PERMISSION by default because gcj already uses
+# ffi_closure_{alloc,free} which takes care of allocating trampolines
+# in executable memory.
 #
 echo "$as_me:$LINENO: checking which machine-dependent code should be used" >&5
 echo $ECHO_N "checking which machine-dependent code should be used... $ECHO_C" >&6
@@ -6891,14 +6889,14 @@ _ACEOF
     machdep="sparc_mach_dep.lo"
     ;;
  ia64-*-*)
+    machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
+    ;;
+esac
 
 cat >>confdefs.h <<\_ACEOF
 #define NO_EXECUTE_PERMISSION 1
 _ACEOF
 
-    machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
-    ;;
-esac
 if test x"$machdep" = x; then
 echo "$as_me:$LINENO: result: $machdep" >&5
 echo "${ECHO_T}$machdep" >&6

diff --git a/configure.ac b/configure.ac
index afc014d795d47e2501b9070fe99363630a3e32af..d4dd16b9e06fa10db94dc4f9b3742fe0ab8c90a7 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -364,11 +364,9 @@ LIBS="$oldLIBS"
 
 # Configuration of machine-dependent code
 #
-# We don't set NO_EXECUTE_PERMISSION by default because gcj (and
-# anything else that creates trampolines in gc-allocated memory)
-# always needs exec permission.  The exceptions to this are IA-64 and
-# some variations of Power PC, where trampolines don't contain
-# executable code.
+# Set NO_EXECUTE_PERMISSION by default because gcj already uses
+# ffi_closure_{alloc,free} which takes care of allocating trampolines
+# in executable memory.
 #
 AC_MSG_CHECKING(which machine-dependent code should be used)
 machdep=
@@ -411,10 +409,10 @@ case "$host" in
     machdep="sparc_mach_dep.lo"
     ;;
  ia64-*-*)
-    AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
     machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
     ;;
 esac
+AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
 if test x"$machdep" = x; then
 AC_MSG_RESULT($machdep)
    machdep="mach_dep.lo"