239 lines
7.4 KiB
C++
239 lines
7.4 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 "JVMTITools.h"
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extern "C" {
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#define STATUS_FAILED 2
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#define PASSED 0
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static jvmtiEnv *jvmti = NULL;
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static jvmtiCapabilities caps;
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static jvmtiEventCallbacks callbacks;
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static int watch_ev = 0; /* ignore JVMTI events by default */
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static int gen_ev = 0; /* number of generated events */
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static int tot_result = PASSED; /* total result of the test */
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static jrawMonitorID watch_ev_monitor;
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static void set_watch_ev(int value) {
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jvmti->RawMonitorEnter(watch_ev_monitor);
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watch_ev = value;
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jvmti->RawMonitorExit(watch_ev_monitor);
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}
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void JNICALL
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FramePop(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread,
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jmethodID method, jboolean wasPopedByException) {
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jvmti->RawMonitorEnter(watch_ev_monitor);
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if (watch_ev) {
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printf("#### FramePop event occurred ####\n");
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gen_ev++;
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}
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jvmti->RawMonitorExit(watch_ev_monitor);
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}
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void JNICALL
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MethodExit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr,
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jmethodID method, jboolean was_poped_by_exc, jvalue return_value) {
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jvmti->RawMonitorEnter(watch_ev_monitor);
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if (watch_ev) {
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printf("#### MethodExit event occurred ####\n");
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gen_ev++;
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}
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jvmti->RawMonitorExit(watch_ev_monitor);
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_PopFrame_popframe001_suspThread(JNIEnv *env, jclass cls, jobject susThr) {
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if (!caps.can_pop_frame || !caps.can_suspend) {
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return PASSED;
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}
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printf(">>>>>>>> Invoke SuspendThread()\n");
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jvmtiError err = jvmti->SuspendThread(susThr);
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if (err != JVMTI_ERROR_NONE) {
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printf("%s: Failed to call SuspendThread(): error=%d: %s\n",
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__FILE__, err, TranslateError(err));
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return JNI_ERR;
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}
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printf("<<<<<<<< SuspendThread() is successfully done\n");
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return PASSED;
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_PopFrame_popframe001_resThread(JNIEnv *env, jclass cls, jobject susThr) {
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if (!caps.can_pop_frame || !caps.can_suspend) {
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return PASSED;
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}
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printf(">>>>>>>> Invoke ResumeThread()\n");
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jvmtiError err = jvmti->ResumeThread(susThr);
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if (err != JVMTI_ERROR_NONE) {
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printf("%s: Failed to call ResumeThread(): error=%d: %s\n",
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__FILE__, err, TranslateError(err));
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return JNI_ERR;
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}
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printf("<<<<<<<< ResumeThread() is successfully done\n");
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return PASSED;
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_PopFrame_popframe001_doPopFrame(JNIEnv *env, jclass cls, jobject frameThr) {
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jvmtiError err;
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if (!caps.can_pop_frame || !caps.can_suspend) {
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return PASSED;
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}
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err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
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JVMTI_EVENT_METHOD_EXIT, frameThr);
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if (err != JVMTI_ERROR_NONE) {
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printf("Failed to enable METHOD_EXIT event: %s (%d)\n",
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TranslateError(err), err);
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tot_result = STATUS_FAILED;
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}
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err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
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JVMTI_EVENT_FRAME_POP, frameThr);
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if (err != JVMTI_ERROR_NONE) {
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printf("Failed to enable FRAME_POP event: %s (%d)\n",
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TranslateError(err), err);
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tot_result = STATUS_FAILED;
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}
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printf(">>>>>>>> Invoke PopFrame()\n");
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set_watch_ev(1); /* watch JVMTI events */
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err = jvmti->PopFrame(frameThr);
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if (err != JVMTI_ERROR_NONE) {
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printf("TEST FAILED: the function PopFrame() returned the error %d: %s\n",
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err, TranslateError(err));
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printf("\tFor more info about this error see the JVMTI spec.\n");
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tot_result = STATUS_FAILED;
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} else {
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printf("Check #1 PASSED: PopFrame() is successfully done\n");
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}
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set_watch_ev(0); /* ignore again JVMTI events */
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if (gen_ev) {
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printf("TEST FAILED: %d JVMTI events were generated by the function PopFrame()\n",
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gen_ev);
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tot_result = STATUS_FAILED;
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} else {
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printf("Check #2 PASSED: No JVMTI events were generated by the function PopFrame()\n");
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}
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return(tot_result);
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_popframe001(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_popframe001(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_popframe001(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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jint res;
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jvmtiError err;
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res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti == NULL) {
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printf("Wrong result of a valid call to GetEnv!\n");
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return JNI_ERR;
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}
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err = jvmti->GetPotentialCapabilities(&caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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err = jvmti->AddCapabilities(&caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(AddCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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err = jvmti->GetCapabilities(&caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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if (!caps.can_pop_frame) {
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printf("Warning: PopFrame is not implemented\n");
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return JNI_OK;
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}
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if (!caps.can_suspend) {
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printf("Warning: suspend/resume is not implemented\n");
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return JNI_OK;
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}
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if (caps.can_generate_frame_pop_events &&
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caps.can_generate_method_exit_events) {
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callbacks.MethodExit = &MethodExit;
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callbacks.FramePop = &FramePop;
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err = jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks));
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if (err != JVMTI_ERROR_NONE) {
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printf("(SetEventCallbacks) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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} else {
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printf("Warning: FramePop or MethodExit event is not implemented\n");
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}
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err = jvmti->CreateRawMonitor("watch_ev_monitor", &watch_ev_monitor);
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if (err != JVMTI_ERROR_NONE) {
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printf("(CreateRawMonitor) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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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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}
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