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// natExceptionEvent.cc - C++ code for JVMTI Exception events
/* Copyright (C) 2007 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#include <config.h>
#include <gcj/cni.h>
#include <gcj/method.h>
#include <java-interp.h>
#include <java-insns.h>
#include <java-assert.h>
#include <jvmti.h>
#include <jvmti-int.h>
#include <gnu/gcj/jvmti/ExceptionEvent.h>
void
gnu::gcj::jvmti::ExceptionEvent::sendEvent ()
{
// Check if the exception is caught somewhere in the interpreted call stack
if (_catchMeth == 0 || _catchLoc == 0)
checkCatch ();
JNIEnv *jni = _Jv_GetCurrentJNIEnv ();
_Jv_JVMTI_PostEvent (JVMTI_EVENT_EXCEPTION, _thread, jni,
reinterpret_cast<jmethodID> (_throwMeth),
static_cast<jlocation> (_throwLoc), _ex,
reinterpret_cast<jmethodID> (_catchMeth),
static_cast<jlocation> (_catchLoc));
}
// This method looks up the interpreted call stack to see if the exception will
// eventually be caught by some java method.
void
gnu::gcj::jvmti::ExceptionEvent::checkCatch ()
{
_Jv_InterpFrame *frame
= reinterpret_cast<_Jv_InterpFrame *> (_thread->interp_frame);
while ((frame = frame->next_interp))
{
_Jv_InterpMethod *meth
= reinterpret_cast<_Jv_InterpMethod *> (frame->self);
pc_t pc = frame->pc;
if (meth->check_handler (&pc, meth, _ex))
{
_catchMeth = reinterpret_cast<jlong> (meth->get_method ());
_catchLoc = meth->insn_index (pc);
break;
}
}
}
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