156 lines
4.8 KiB
C++
156 lines
4.8 KiB
C++
/*
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* Copyright (c) 2004, 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 <string.h>
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#include "jvmti.h"
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#include "agent_common.h"
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#include "jni_tools.h"
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#include "jvmti_tools.h"
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extern "C" {
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/* ========================================================================== */
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/* scaffold objects */
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static jlong timeout = 0;
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/* test objects */
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static int eventsCount = 0;
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/* ========================================================================== */
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/* check if any VMObjectAlloc events received */
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static int checkVMObjectAllocEvents() {
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NSK_DISPLAY1("VMObjectAlloc events received: %d\n", eventsCount);
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if (eventsCount == 0) {
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NSK_DISPLAY0("# WARNING: no VMObjectAlloc events\n");
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NSK_DISPLAY0("# (VM might not allocate such objects at all)\n");
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}
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return NSK_TRUE;
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}
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/* ========================================================================== */
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JNIEXPORT void JNICALL
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VMObjectAlloc(jvmtiEnv *jvmti, JNIEnv* jni, jthread thread, jobject object,
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jclass object_klass, jlong size) {
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char *signature, *generic;
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eventsCount++;
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if (!NSK_JVMTI_VERIFY(jvmti->GetClassSignature(object_klass, &signature, &generic))) {
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nsk_jvmti_setFailStatus();
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return;
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}
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NSK_DISPLAY2("VMObjectAlloc: \"%s\", size=%d\n", signature, size);
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if (signature != NULL)
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jvmti->Deallocate((unsigned char*)signature);
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if (generic != NULL)
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jvmti->Deallocate((unsigned char*)generic);
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}
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/* ========================================================================== */
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/* agent algorithm */
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static void JNICALL
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agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
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/* wait for debuggee start */
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if (!nsk_jvmti_waitForSync(timeout))
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return;
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/* testcase #1: check if any VMObjectAlloc events received*/
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NSK_DISPLAY0("Testcase #1: check if any VMObjectAlloc events received\n");
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if (!checkVMObjectAllocEvents())
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nsk_jvmti_setFailStatus();
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/* resume debugee after last sync */
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if (!nsk_jvmti_resumeSync())
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return;
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}
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/* ========================================================================== */
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/* agent library initialization */
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_vmobjalloc001(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_vmobjalloc001(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_vmobjalloc001(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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jvmtiEnv* jvmti = NULL;
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jvmtiCapabilities caps;
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jvmtiEventCallbacks callbacks;
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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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timeout = nsk_jvmti_getWaitTime() * 60000;
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NSK_DISPLAY1("Timeout: %d msc\n", (int)timeout);
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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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memset(&caps, 0, sizeof(caps));
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caps.can_generate_vm_object_alloc_events = 1;
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if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) {
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return JNI_ERR;
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}
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.VMObjectAlloc= &VMObjectAlloc;
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if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks))))
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return JNI_ERR;
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/* enable VMObjectAlloc event */
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if (!NSK_JVMTI_VERIFY(
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jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_VM_OBJECT_ALLOC, NULL)))
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return JNI_ERR;
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/* register agent proc and arg */
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if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
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return JNI_ERR;
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return JNI_OK;
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}
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/* ========================================================================== */
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}
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