73 lines
2.8 KiB
Java
73 lines
2.8 KiB
Java
package ex11;
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import ch.usi.dag.disl.annotation.Before;
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import ch.usi.dag.disl.annotation.ThreadLocal;
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import ch.usi.dag.disl.marker.BodyMarker;
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import ch.usi.dag.disl.marker.BytecodeMarker;
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import ch.usi.dag.disl.staticcontext.InstructionStaticContext;
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import ch.usi.dag.disl.staticcontext.InvocationStaticContext;
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import ch.usi.dag.disl.staticcontext.MethodStaticContext;
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public class Instrumentation {
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@ThreadLocal
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private static int opCode;
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@ThreadLocal
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private static int index;
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@ThreadLocal
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private static String callee;
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@ThreadLocal
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private static String caller;
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@ThreadLocal
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private static boolean initialized;
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@Before(marker = BytecodeMarker.class, args = "invokevirtual, invokeinterface")
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static void atObjectRefCallSite(final InstructionStaticContext isc,
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final MethodStaticContext msc,
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final InvocationStaticContext ivc) {
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opCode = isc.getOpcode();
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index = isc.getIndex();
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caller = msc.thisMethodFullName().concat(msc.thisMethodDescriptor());
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callee = ivc.getInternalName().concat(ivc.getDescriptor());
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initialized = true;
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}
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@Before(marker = BytecodeMarker.class, args = "invokedynamic")
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static void atObjectRefCallSiteDynamic(final InstructionStaticContext isc,
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final MethodStaticContext msc) {
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opCode = isc.getOpcode();
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index = isc.getIndex();
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caller = msc.thisMethodFullName().concat(msc.thisMethodDescriptor());
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callee = "[UNDETERMINED]";
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initialized = true;
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}
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@Before(marker = BodyMarker.class, guard = IsDynamicTargetGuard.class)
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static void beforeMethod(MethodStaticContext msc) {
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// we can ignore here constructors and private methods since we know they must be invoked with "invokespecial"
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// and static methods since they are called with "invokestatic" which performs static binding.
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// Instrumenting the constructor of java.lang.Object would actually cause a segmentation fault of the JVM.
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if (initialized) {
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Profiler.registerCall(new CallInfo(opCode, index, caller, callee, msc.getUniqueInternalName()));
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initialized = false;
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}
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}
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@Before(marker = BytecodeMarker.class, args = "invokestatic, invokespecial")
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static void atStaticCallSite(final InstructionStaticContext isc,
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final MethodStaticContext msc,
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final InvocationStaticContext ivc) {
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final String v = ivc.getInternalName().concat(ivc.getDescriptor());
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Profiler.registerCall(new CallInfo(
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isc.getOpcode(),
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isc.getIndex(),
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msc.thisMethodFullName().concat(msc.thisMethodDescriptor()),
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v,
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v
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));
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}
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}
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