Merge "Use 0xde as the poison value after JIT code cache reset."

aosp-mirror · Sep 17, 2012 · a177aa5 · a177aa5
2 parents f31a060 + 474c8ab
commit a177aa5
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/vm/compiler/codegen/arm/ArchUtility.cpp b/vm/compiler/codegen/arm/ArchUtility.cpp
@@ -429,6 +429,10 @@ void dvmCompilerCacheFlush(long start, long end, long flags)
 /* Target-specific cache clearing */
 void dvmCompilerCacheClear(char *start, size_t size)
 {
-    /* 0 is an invalid opcode for arm. */
-    memset(start, 0, size);
+    /*
+     * de is an invalid opcode for arm.
+     * From gdb disassembly:  <UNDEFINED> instruction: 0xdede
+     */
+
+    memset(start, 0xde, size);
 }