210 lines
7.2 KiB
C++
210 lines
7.2 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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#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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static volatile jint result = PASSED;
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static volatile int compunload = 0;
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static volatile int class_unloaded = 0;
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static jvmtiEnv *jvmti = NULL;
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static jvmtiEventCallbacks callbacks;
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static jvmtiCapabilities caps;
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/** callback functions **/
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void JNICALL
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VMInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr) {
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NSK_DISPLAY0("VMInit event received\n\n");
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GenerateEvents,
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jvmti_env, JVMTI_EVENT_COMPILED_METHOD_LOAD))) {
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NSK_COMPLAIN0("TEST FAILED: unable to generate events to represent the current state of the VM\n");
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result = STATUS_FAILED;
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}
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}
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void JNICALL
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CompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size,
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const void* code_addr, jint map_length, const jvmtiAddrLocationMap* map,
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const void* compile_info) {
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char *name;
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char *sig;
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char *generic;
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NSK_DISPLAY0("CompiledMethodLoad event received for:\n");
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName,
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jvmti_env, method, &name, &sig, &generic))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILURE: unable to obtain method info\n\n");
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return;
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}
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NSK_DISPLAY4("\tmethod: name=\"%s\" signature=\"%s\"\n\tcompiled code size=%d\n\tnumber of address location map entries=%d\n\n",
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name, sig, code_size, map_length);
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}
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void JNICALL
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CompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method,
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const void* code_addr) {
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char *name;
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char *sig;
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jvmtiPhase phase;
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jvmtiError err;
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compunload++;
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/* jmethodID: Identifies a Java programming language method, initializer, or constructor.
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* jmethodIDs returned by JVM TI functions and events may be safely stored. However, if
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* the class is unloaded, they become invalid and must not be used. */
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NSK_DISPLAY0("CompiledMethodUnload event received\n");
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// Check for the case that the class has been unloaded
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err = jvmti_env->GetMethodName(method, &name, &sig, NULL);
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if (err == JVMTI_ERROR_NONE) {
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NSK_DISPLAY3("for: \tmethod: name=\"%s\" signature=\"%s\"\n\tnative address=0x%p\n",
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name, sig, code_addr);
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NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name);
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NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)sig);
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} else {
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// The class metadata has been completely unloaded so the name is not available.
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NSK_DISPLAY0("for: \tmethod: name=<not available>\n");
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}
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// Count unloaded events
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class_unloaded++;
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if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase,
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jvmti_env, &phase))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILURE: unable to obtain phase of the VM execution\n");
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return;
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}
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if (phase != JVMTI_PHASE_LIVE) {
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result = STATUS_FAILED;
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NSK_COMPLAIN1("TEST FAILED: CompiledMethodUnload event received during non-live phase %s\n",
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TranslatePhase(phase));
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}
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else
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NSK_DISPLAY0("CHECK PASSED: CompiledMethodUnload event received during the live phase as expected\n\n");
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}
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/************************/
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_CompiledMethodUnload_compmethunload001_check(
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JNIEnv *env, jobject obj) {
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if (!caps.can_generate_compiled_method_load_events)
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return PASSED;
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if (compunload == 0)
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NSK_DISPLAY0("Warning: no CompiledMethodUnload events\n\tthe test has no results\n");
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return result;
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_CompiledMethodUnload_compmethunload001_unloaded(
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JNIEnv *env, jobject obj) {
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if (!caps.can_generate_compiled_method_load_events)
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return 1;
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return class_unloaded;
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_compmethunload001(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_compmethunload001(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_compmethunload001(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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/* 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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/* add capability to generate compiled method events */
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memset(&caps, 0, sizeof(jvmtiCapabilities));
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caps.can_generate_compiled_method_load_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_compiled_method_load_events)
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NSK_DISPLAY0("Warning: generation of compiled method 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.VMInit = &VMInit;
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callbacks.CompiledMethodLoad = &CompiledMethodLoad;
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callbacks.CompiledMethodUnload = &CompiledMethodUnload;
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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_INIT, 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_COMPILED_METHOD_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_COMPILED_METHOD_UNLOAD, NULL)))
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return JNI_ERR;
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NSK_DISPLAY0("enabling the events done\n\n");
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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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