configure.ac: Define FFI_MMAP_EXEC_WRIT for the given targets.

2009-12-26  Andreas Tobler  <a.tobler@schweiz.org>

	* configure.ac: Define FFI_MMAP_EXEC_WRIT for the given targets.
	* configure: Regenerate.
	* fficonfig.h.in: Likewise.
	* src/closures.c: Remove the FFI_MMAP_EXEC_WRIT definition for
	Solaris/x86.

From-SVN: r155475

diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index cf36050..9d06305 100644 (file)
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -1,3 +1,11 @@
+2009-12-26  Andreas Tobler  <a.tobler@schweiz.org>
+
+       * configure.ac: Define FFI_MMAP_EXEC_WRIT for the given targets.
+       * configure: Regenerate.
+       * fficonfig.h.in: Likewise.
+       * src/closures.c: Remove the FFI_MMAP_EXEC_WRIT definition for
+       Solaris/x86.
+
 2009-12-26  Andreas Schwab  <schwab@linux-m68k.org>
 
        * src/powerpc/ffi.c (ffi_prep_args_SYSV): Advance intarg_count

diff --git a/libffi/configure b/libffi/configure
index f8456c9..aa40a01 100755 (executable)
--- a/libffi/configure
+++ b/libffi/configure
@@ -12405,6 +12405,14 @@ $as_echo "#define HAVE_AS_X86_PCREL 1" >>confdefs.h
     fi
 fi
 
+case "$target" in
+     *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
+
+$as_echo "#define FFI_MMAP_EXEC_WRIT 1" >>confdefs.h
+
+     ;;
+esac
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether .eh_frame section should be read-only" >&5
 $as_echo_n "checking whether .eh_frame section should be read-only... " >&6; }
 if test "${libffi_cv_ro_eh_frame+set}" = set; then :

diff --git a/libffi/configure.ac b/libffi/configure.ac
index a1a016c..f101f49 100644 (file)
--- a/libffi/configure.ac
+++ b/libffi/configure.ac
@@ -271,6 +271,14 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
     fi
 fi
 
+case "$target" in
+     *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
+       AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
+                 [Cannot use malloc on this target, so, we revert to
+                   alternative means])
+     ;;
+esac
+
 AC_CACHE_CHECK([whether .eh_frame section should be read-only],
     libffi_cv_ro_eh_frame, [
        libffi_cv_ro_eh_frame=no

diff --git a/libffi/fficonfig.h.in b/libffi/fficonfig.h.in
index 9fce46b..e03bbf9 100644 (file)
--- a/libffi/fficonfig.h.in
+++ b/libffi/fficonfig.h.in
@@ -17,6 +17,9 @@
 /* Define this if you want extra debugging. */
 #undef FFI_DEBUG
 
+/* Cannot use malloc on this target, so, we revert to alternative means */
+#undef FFI_MMAP_EXEC_WRIT
+
 /* Define this is you do not want support for the raw API. */
 #undef FFI_NO_RAW_API
 

diff --git a/libffi/src/closures.c b/libffi/src/closures.c
index 48cb415..0b156e0 100644 (file)
--- a/libffi/src/closures.c
+++ b/libffi/src/closures.c
@@ -50,11 +50,6 @@
    executable memory. */
 #  define FFI_MMAP_EXEC_WRIT 1
 # endif
-# if defined(X86_64) && defined(__sun__) && defined(__svr4__)
-/* The data segment on 64-bit Solaris/x86 isn't executable, so use mmap
-   instead.  */
-#  define FFI_MMAP_EXEC_WRIT 1
-# endif
 #endif
 
 #if FFI_MMAP_EXEC_WRIT && !defined FFI_MMAP_EXEC_SELINUX