309 lines
10 KiB
C
309 lines
10 KiB
C
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <jvmti.h>
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#include "agent_common.h"
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#include "nsk_tools.h"
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#include "JVMTITools.h"
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#include "jvmti_tools.h"
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#include "jni_tools.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define STATUS_FAILED 2
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#define PASSED 0
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#define METH_NUM 2
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static const char *METHODS[][2] = {
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{"bpMethod", "()V"},
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{"bpMethod2", "()I"}
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};
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static const char *CLASS_SIG =
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"Lnsk/jvmti/Breakpoint/breakpoint001;";
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static const char *THREAD_NAME = "breakpoint001Thr";
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static volatile int bpEvents[METH_NUM];
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static volatile jint result = PASSED;
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static jvmtiEnv *jvmti = NULL;
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static jvmtiEventCallbacks callbacks;
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static int vm_started = 0;
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static jrawMonitorID agent_lock;
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static void initCounters() {
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int i;
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for(i=0; i<METH_NUM; i++)
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bpEvents[i] = 0;
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}
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static void setBP(jvmtiEnv *jvmti_env, JNIEnv *env, jclass klass) {
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jmethodID mid;
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int i;
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for (i=0; i<METH_NUM; i++) {
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if (!NSK_JNI_VERIFY(env, (mid = NSK_CPP_STUB4(GetMethodID,
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env, klass, METHODS[i][0], METHODS[i][1])) != NULL))
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NSK_CPP_STUB2(FatalError, env,
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"failed to get ID for the java method\n");
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetBreakpoint,
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jvmti_env, mid, 0)))
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NSK_CPP_STUB2(FatalError, env,
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"failed to set breakpoint\n");
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}
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}
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/** callback functions **/
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void JNICALL
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ClassLoad(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread, jclass klass) {
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char *sig, *generic;
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(*jvmti)->RawMonitorEnter(jvmti, agent_lock);
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if (vm_started) {
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// GetClassSignature may be called only during the start or the live phase
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(GetClassSignature,
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jvmti_env, klass, &sig, &generic)))
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NSK_CPP_STUB2(FatalError, env,
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"failed to obtain a class signature\n");
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if (sig != NULL && (strcmp(sig, CLASS_SIG) == 0)) {
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NSK_DISPLAY1("ClassLoad event received for the class \"%s\"\n\
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\tsetting breakpoints ...\n",
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sig);
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setBP(jvmti_env, env, klass);
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}
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}
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(*jvmti)->RawMonitorExit(jvmti, agent_lock);
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}
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void JNICALL
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Breakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
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jmethodID method, jlocation location) {
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jclass klass;
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char *clsSig, *generic, *methNam, *methSig;
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jvmtiThreadInfo thr_info;
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int checkStatus = PASSED;
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int i;
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NSK_DISPLAY0(">>>> Breakpoint event received\n");
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/* checking thread info */
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(GetThreadInfo,
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jvmti_env, thread, &thr_info))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to get thread info during Breakpoint callback\n\n");
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return;
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}
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if (thr_info.name == NULL ||
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strcmp(thr_info.name,THREAD_NAME) != 0 ||
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thr_info.is_daemon==JNI_TRUE) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN2("TEST FAILED: Breakpoint event with unexpected thread info:\n\
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\tname: \"%s\"\ttype: %s thread\n\n",
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(thr_info.name == NULL)?"NULL":thr_info.name,
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(thr_info.is_daemon==JNI_TRUE)?"deamon":"user");
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}
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else
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NSK_DISPLAY2("CHECK PASSED: thread name: \"%s\"\ttype: %s thread\n",
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thr_info.name, (thr_info.is_daemon==JNI_TRUE)?"deamon":"user");
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/* checking location */
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if (location != 0) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN1("TEST FAILED: Breakpoint event with unexpected location %ld:\n\n",
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(long) location);
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}
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else
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NSK_DISPLAY1("CHECK PASSED: location: %ld as expected\n",
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(long) location);
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/* checking method info */
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(GetMethodDeclaringClass,
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jvmti_env, method, &klass))) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to get method declaring class during Breakpoint callback\n\n");
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return;
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}
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(GetClassSignature,
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jvmti_env, klass, &clsSig, &generic))) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to obtain a class signature during Breakpoint callback\n\n");
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return;
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}
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if (clsSig == NULL ||
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strcmp(clsSig,CLASS_SIG) != 0) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN1("TEST FAILED: Breakpoint event with unexpected class signature:\n\
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\t\"%s\"\n\n",
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(clsSig == NULL)?"NULL":clsSig);
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}
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else
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NSK_DISPLAY1("CHECK PASSED: class signature: \"%s\"\n",
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clsSig);
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName,
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jvmti_env, method, &methNam, &methSig, NULL))) {
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result = checkStatus = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to get method name during Breakpoint callback\n\n");
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return;
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}
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for (i=0; i<METH_NUM; i++)
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if (strcmp(methNam,METHODS[i][0]) &&
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strcmp(methSig,METHODS[i][1])) {
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NSK_DISPLAY2("CHECK PASSED: method name: \"%s\"\tsignature: \"%s\"\n",
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methNam, methSig);
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if (checkStatus == PASSED)
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bpEvents[i]++;
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break;
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}
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate,
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jvmti_env, (unsigned char*) methNam))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method name\n\n");
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}
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate,
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jvmti_env, (unsigned char*) methSig))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method signature\n\n");
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}
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NSK_DISPLAY0("<<<<\n\n");
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}
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void JNICALL
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VMStart(jvmtiEnv *jvmti_env, JNIEnv* jni_env) {
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(*jvmti)->RawMonitorEnter(jvmti, agent_lock);
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vm_started = 1;
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(*jvmti)->RawMonitorExit(jvmti, agent_lock);
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}
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/************************/
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_Breakpoint_breakpoint001_check(
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JNIEnv *env, jobject obj) {
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int i;
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for (i=0; i<METH_NUM; i++) {
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if (bpEvents[i] != 1) {
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result = STATUS_FAILED;
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NSK_COMPLAIN3("TEST FAILED: wrong number of Breakpoint events\n\
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\tfor the method \"%s %s\":\n\t\tgot: %d\texpected: 1\n",
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METHODS[i][0], METHODS[i][1], bpEvents[i]);
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}
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else
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NSK_DISPLAY3("CHECK PASSED: %d Breakpoint event(s) for the method \"%s %s\" as expected\n",
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bpEvents[i], METHODS[i][0], METHODS[i][1]);
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}
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return result;
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_breakpoint001(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNICALL Agent_OnAttach_breakpoint001(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNI_OnLoad_breakpoint001(JavaVM *jvm, char *options, void *reserved) {
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return JNI_VERSION_1_8;
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}
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#endif
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jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
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jvmtiCapabilities caps;
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/* init framework and parse options */
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if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
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return JNI_ERR;
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/* create JVMTI environment */
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if (!NSK_VERIFY((jvmti =
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nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
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return JNI_ERR;
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initCounters();
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/* add capability to generate compiled method events */
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memset(&caps, 0, sizeof(jvmtiCapabilities));
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caps.can_generate_breakpoint_events = 1;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities,
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jvmti, &caps)))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetCapabilities,
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jvmti, &caps)))
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return JNI_ERR;
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if (!caps.can_generate_single_step_events)
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NSK_DISPLAY0("Warning: generation of single step events is not implemented\n");
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/* set event callback */
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NSK_DISPLAY0("setting event callbacks ...\n");
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(void) memset(&callbacks, 0, sizeof(callbacks));
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callbacks.ClassLoad = &ClassLoad;
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callbacks.Breakpoint = &Breakpoint;
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callbacks.VMStart = &VMStart;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks,
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jvmti, &callbacks, sizeof(callbacks))))
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return JNI_ERR;
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NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n");
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
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jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_START, NULL)))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
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jvmti, JVMTI_ENABLE, JVMTI_EVENT_CLASS_LOAD, NULL)))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
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jvmti, JVMTI_ENABLE, JVMTI_EVENT_BREAKPOINT, NULL)))
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return JNI_ERR;
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NSK_DISPLAY0("enabling the events done\n\n");
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if ((*jvmti)->CreateRawMonitor(jvmti, "agent_lock", &agent_lock) != JVMTI_ERROR_NONE) {
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return JNI_ERR;
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}
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return JNI_OK;
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}
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#ifdef __cplusplus
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}
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#endif
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