Working dex2oat and oatexec

adb shell dex2oatd --dex-file=/system/framework/core.jar     --image=/system/framework/boot.oat --base=0x50000000 "'--method=Ljava/lang/System;logI(Ljava/lang/String;)V'" "'--method=Ljava/lang/System;log(CLjava/lang/String;Ljava/lang/Throwable;)V'"
adb shell dex2oatd --boot-dex-file=/system/framework/core.jar --boot=/system/framework/boot.oat --dex-file=/system/framework/art-test-dex-HelloWorld.jar --image=/system/framework/art-test-dex-HelloWorld.oat
adb shell oatexecd -Xbootclasspath:/system/framework/core.jar -Xbootimage:/system/framework/boot.oat -classpath /system/framework/art-test-dex-HelloWorld.jar -Ximage:/system/framework/art-test-dex-HelloWorld.oat HelloWorld

09-05 17:58:18.912  2385  2385 I System  : Hello, world!

Change-Id: I53e534068584f0c3a837313e4d517a0e4a7154fc
diff --git a/src/image.cc b/src/image.cc
index a41bf5b..5bf7b10 100644
--- a/src/image.cc
+++ b/src/image.cc
@@ -4,7 +4,7 @@
 
 namespace art {
 
-const byte ImageHeader::kImageMagic[] = { 'i', 'm', 'g', '\n' };
+const byte ImageHeader::kImageMagic[] = { 'o', 'a', 't', '\n' };
 const byte ImageHeader::kImageVersion[] = { '0', '0', '1', '\0' };
 
 }  // namespace art