| /* |
| * Copyright (c) 2004, 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 <stdlib.h> |
| #include <string.h> |
| #include "jni_tools.h" |
| #include "agent_common.h" |
| #include "jvmti_tools.h" |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ========================================================================== */ |
| |
| /* scaffold objects */ |
| static jlong timeout = 0; |
| |
| /* event counts */ |
| static int CompiledMethodLoadEventsCount = 0; |
| static int CompiledMethodUnloadEventsCount = 0; |
| |
| /* ========================================================================== */ |
| |
| /** callback functions **/ |
| |
| static void JNICALL |
| CompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, |
| jint code_size, const void* code_addr, jint map_length, |
| const jvmtiAddrLocationMap* map, const void* compile_info) { |
| char *name = NULL; |
| char *signature = NULL; |
| |
| CompiledMethodLoadEventsCount++; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName, |
| jvmti_env, method, &name, &signature, NULL))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY3("CompiledMethodLoad event: %s%s (0x%p)\n", |
| name, signature, code_addr); |
| if (name != NULL) |
| NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name); |
| if (signature != NULL) |
| NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature); |
| } |
| |
| static void JNICALL |
| CompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method, |
| const void* code_addr) { |
| char *name = NULL; |
| char *sig = NULL; |
| jvmtiError err; |
| CompiledMethodUnloadEventsCount++; |
| |
| NSK_DISPLAY0("CompiledMethodUnload event received\n"); |
| // Check for the case that the class has been unloaded |
| err = (*jvmti_env)->GetMethodName(jvmti_env, method, &name, &sig, NULL); |
| if (err == JVMTI_ERROR_NONE) { |
| NSK_DISPLAY3("for: \tmethod: name=\"%s\" signature=\"%s\"\n\tnative address=0x%p\n", |
| name, sig, code_addr); |
| NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name); |
| NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)sig); |
| } |
| } |
| |
| /* ========================================================================== */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY1("CompiledMethodLoad events received: %d\n", |
| CompiledMethodLoadEventsCount); |
| if (CompiledMethodLoadEventsCount == 0) { |
| NSK_DISPLAY0("# WARNING: no CompiledMethodLoad events\n"); |
| NSK_DISPLAY0("# (VM might not compile any methods at all)\n"); |
| } |
| |
| NSK_DISPLAY1("CompiledMethodUnload events received: %d\n", |
| CompiledMethodUnloadEventsCount); |
| if (CompiledMethodUnloadEventsCount == 0) { |
| NSK_DISPLAY0("# WARNING: no CompiledMethodUnload events\n"); |
| NSK_DISPLAY0("# (VM might not compile any methods at all)\n"); |
| } |
| |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ========================================================================== */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_ma10t006(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_ma10t006(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_ma10t006(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jvmtiEnv* jvmti = NULL; |
| jvmtiCapabilities caps; |
| jvmtiEventCallbacks callbacks; |
| |
| NSK_DISPLAY0("Agent_OnLoad\n"); |
| |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| |
| if (!NSK_VERIFY((jvmti = |
| nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| memset(&caps, 0, sizeof(caps)); |
| caps.can_generate_compiled_method_load_events = 1; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) { |
| return JNI_ERR; |
| } |
| |
| memset(&callbacks, 0, sizeof(callbacks)); |
| callbacks.CompiledMethodLoad = &CompiledMethodLoad; |
| callbacks.CompiledMethodUnload = &CompiledMethodUnload; |
| if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks))) |
| return JNI_ERR; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode, |
| jvmti, JVMTI_ENABLE, JVMTI_EVENT_COMPILED_METHOD_LOAD, NULL))) |
| return JNI_ERR; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode, |
| jvmti, JVMTI_ENABLE, JVMTI_EVENT_COMPILED_METHOD_UNLOAD, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ========================================================================== */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |