Implement ExecutableAllocator::cacheFlush() for QNX

https://bugs.webkit.org/show_bug.cgi?id=66611

Reviewed by Antonio Gomes.

* jit/ExecutableAllocator.h:
(JSC::ExecutableAllocator::cacheFlush):


git-svn-id: svn://svn.chromium.org/blink/trunk@93462 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/JavaScriptCore/ChangeLog

+2011-08-19  Daniel Bates  <dbates@webkit.org>
+
+        Implement ExecutableAllocator::cacheFlush() for QNX
+        https://bugs.webkit.org/show_bug.cgi?id=66611
+
+        Reviewed by Antonio Gomes.
+
+        * jit/ExecutableAllocator.h:
+        (JSC::ExecutableAllocator::cacheFlush):
+
 2011-08-19  Daniel Bates  <dbates@webkit.org>
 
         Implement WTF::atomic{Increment, Decrement}() for QNX

third_party/WebKit/Source/JavaScriptCore/jit/ExecutableAllocator.h

@@ -36,6 +36,9 @@
 
 #if OS(IOS)
 #include <libkern/OSCacheControl.h>
+#endif
+
+#if OS(IOS) || OS(QNX)
 #include <sys/mman.h>
 #endif
 
@@ -325,6 +328,16 @@ public:
         syscall(__NR_cacheflush, reinterpret_cast<unsigned>(code), size, CACHEFLUSH_D_WB | CACHEFLUSH_I);
 #endif
     }
+#elif OS(QNX)
+    static void cacheFlush(void* code, size_t size)
+    {
+#if !ENABLE(ASSEMBLER_WX_EXCLUSIVE)
+        msync(code, size, MS_INVALIDATE_ICACHE);
+#else
+        UNUSED_PARAM(code);
+        UNUSED_PARAM(size);
+#endif
+    }
 #else
     #error "The cacheFlush support is missing on this platform."
 #endif