cache flush for Apple devices

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@967 2f5784b3-3f2a-0410-8824-cb99058d5e15

2 files changed, 18 insertions, 6 deletions

diff --git a/ChangeLog b/ChangeLog
index 4a4c612..743f3b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -113,6 +113,9 @@ Version 8.31
 
 30. JIT compiler update.
 
+31. JIT is now supported on jailbroken iOS devices. Thanks for Ruiger
+    Rill for the patch.
+
 
 Version 8.30 04-February-2012
 -----------------------------
diff --git a/sljit/sljitConfigInternal.h b/sljit/sljitConfigInternal.h
index 0200285..ad12bfd 100644
--- a/sljit/sljitConfigInternal.h
+++ b/sljit/sljitConfigInternal.h
@@ -194,16 +194,25 @@
 
 #ifndef SLJIT_CACHE_FLUSH
 
-#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+
+/* Not required to implement on archs with unified caches. */
+#define SLJIT_CACHE_FLUSH(from, to)
+
+#elif defined __APPLE__
+
+/* Supported by all macs since Mac OS 10.5.
+   However, it does not work on non-jailbroken iOS devices,
+   although the compilation is successful. */
 
-/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
 #define SLJIT_CACHE_FLUSH(from, to) \
-	ppc_cache_flush((from), (to))
+	sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
 
-#elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+#elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
 
-/* Not required to implement on archs with unified caches. */
-#define SLJIT_CACHE_FLUSH(from, to)
+/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
+#define SLJIT_CACHE_FLUSH(from, to) \
+	ppc_cache_flush((from), (to))
 
 #else