123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
|
|
*
|
||
|
|
* This code is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 only, as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
||
|
|
* accompanied this code).
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License version
|
||
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
||
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*
|
||
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
||
|
|
* or visit www.oracle.com if you need additional information or have any
|
||
|
|
* questions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include "jvmti.h"
|
||
|
|
|
||
|
|
#define CLASS_NAME "Lcompiler/jsr292/cr8026328/Test8026328;"
|
||
|
|
#define METHOD_NAME "main"
|
||
|
|
|
||
|
|
static jvmtiEnv *jvmti = NULL;
|
||
|
|
|
||
|
|
|
||
|
|
void JNICALL
|
||
|
|
classprepare(jvmtiEnv* jvmti_env,
|
||
|
|
JNIEnv* jni_env,
|
||
|
|
jthread thread,
|
||
|
|
jclass klass) {
|
||
|
|
|
||
|
|
char* buf;
|
||
|
|
(*jvmti)->GetClassSignature(jvmti,
|
||
|
|
klass,
|
||
|
|
&buf,
|
||
|
|
NULL);
|
||
|
|
if (strcmp(CLASS_NAME, buf) == 0) {
|
||
|
|
jint nMethods;
|
||
|
|
jmethodID* methods;
|
||
|
|
int i;
|
||
|
|
(*jvmti)->GetClassMethods(jvmti,
|
||
|
|
klass,
|
||
|
|
&nMethods,
|
||
|
|
&methods);
|
||
|
|
for (i = 0; i < nMethods; i++) {
|
||
|
|
char* name;
|
||
|
|
(*jvmti)->GetMethodName(jvmti,
|
||
|
|
methods[i],
|
||
|
|
&name,
|
||
|
|
NULL,
|
||
|
|
NULL);
|
||
|
|
if (strcmp(METHOD_NAME, name) == 0) {
|
||
|
|
printf("Setting breakpoint\n");
|
||
|
|
fflush(stdout);
|
||
|
|
(*jvmti)->SetBreakpoint(jvmti, methods[i], 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void JNICALL
|
||
|
|
breakpoint(jvmtiEnv* jvmti_env,
|
||
|
|
JNIEnv* jni_env,
|
||
|
|
jthread thread,
|
||
|
|
jmethodID method,
|
||
|
|
jlocation location) {
|
||
|
|
|
||
|
|
jclass declaring_class;
|
||
|
|
char* name;
|
||
|
|
char* cname;
|
||
|
|
(*jvmti)->GetMethodName(jvmti,
|
||
|
|
method,
|
||
|
|
&name,
|
||
|
|
NULL,
|
||
|
|
NULL);
|
||
|
|
(*jvmti)->GetMethodDeclaringClass(jvmti,
|
||
|
|
method,
|
||
|
|
&declaring_class);
|
||
|
|
(*jvmti)->GetClassSignature(jvmti,
|
||
|
|
declaring_class,
|
||
|
|
&cname,
|
||
|
|
NULL);
|
||
|
|
printf("Hit breakpoint at %s::%s:%d\n", cname, name, (int) location);
|
||
|
|
fflush(stdout);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
JNIEXPORT jint JNICALL
|
||
|
|
Agent_OnLoad(JavaVM* vm,
|
||
|
|
char* options,
|
||
|
|
void* reserved) {
|
||
|
|
|
||
|
|
jvmtiCapabilities capa;
|
||
|
|
jvmtiEventCallbacks cbs = {0};
|
||
|
|
|
||
|
|
(*vm)->GetEnv(vm, (void**)&jvmti, JVMTI_VERSION_1_0);
|
||
|
|
|
||
|
|
memset(&capa, 0, sizeof(capa));
|
||
|
|
capa.can_generate_breakpoint_events = 1;
|
||
|
|
capa.can_generate_single_step_events = 1;
|
||
|
|
(*jvmti)->AddCapabilities(jvmti, &capa);
|
||
|
|
|
||
|
|
cbs.ClassPrepare = classprepare;
|
||
|
|
cbs.Breakpoint = breakpoint;
|
||
|
|
(*jvmti)->SetEventCallbacks(jvmti, &cbs, sizeof(cbs));
|
||
|
|
(*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE, JVMTI_EVENT_CLASS_PREPARE, NULL);
|
||
|
|
(*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE, JVMTI_EVENT_BREAKPOINT, NULL);
|
||
|
|
printf("Loaded agent\n");
|
||
|
|
fflush(stdout);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|