bool dumpStubFrameInformation(const JVMPI_CallFrame &frame, jvmtiEnv *jvmti,
MethodListener &listener) {
method_id id = (method_id)frame.method_id;
if (frame.method_id == (jmethodID)1) {
listener.recordNewMethod(id, "PrintStream.java", "Ljava/io/PrintStream;",
"printf");
} else {
listener.recordNewMethod(id, "PrintStream.java", "Ljava/io/PrintStream;",
"append");
}
return true;
}
bool Profiler::lookupFrameInformation(const JVMPI_CallFrame &frame,
jvmtiEnv *jvmti,
MethodListener &logWriter) {
jint error;
JvmtiScopedPtr<char> methodName(jvmti);
error = jvmti->GetMethodName(frame.method_id, methodName.GetRef(), NULL, NULL);
if (error != JVMTI_ERROR_NONE) {
methodName.AbandonBecauseOfError();
if (error == JVMTI_ERROR_INVALID_METHODID) {
static int once = 0;
if (!once) {
once = 1;
logError("One of your monitoring interfaces "
"is having trouble resolving its stack traces. "
"GetMethodName on a jmethodID involved in a stacktrace "
"resulted in an INVALID_METHODID error which usually "
"indicates its declaring class has been unloaded.\n");
logError("Unexpected JVMTI error %d in GetMethodName\n", error);
}
}
return false;
}
// Get class name, put it in signature_ptr
jclass declaring_class;
JVMTI_ERROR_1(
jvmti->GetMethodDeclaringClass(frame.method_id, &declaring_class), false);
JvmtiScopedPtr<char> signature_ptr2(jvmti);
JVMTI_ERROR_CLEANUP_1(
jvmti->GetClassSignature(declaring_class, signature_ptr2.GetRef(), NULL),
false, signature_ptr2.AbandonBecauseOfError());
// Get source file, put it in source_name_ptr
char *fileName;
JvmtiScopedPtr<char> source_name_ptr(jvmti);
static char file_unknown[] = "UnknownFile";
if (JVMTI_ERROR_NONE !=
jvmti->GetSourceFileName(declaring_class, source_name_ptr.GetRef())) {
source_name_ptr.AbandonBecauseOfError();
fileName = file_unknown;
} else {
fileName = source_name_ptr.Get();
}
logWriter.recordNewMethod((method_id) frame.method_id, fileName,
signature_ptr2.Get(), methodName.Get());
return true;
/*if (line_number != NULL) {
// TODO: is frame.lineno correct? GetLineNumber
// expects a BCI.
*line_number = GetLineNumber(frame.method_id, frame.lineno);
}*/
}
// leaks memory during tests
bool stubFrameInformation(const JVMPI_CallFrame &frame, jvmtiEnv *jvmti,
MethodListener &listener) {
listener.recordNewMethod((method_id)frame.method_id, "c", "b", "a");
return true;
}
