1 /* 2 * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include <stdlib.h> 25 #include <string.h> 26 #include "jni_tools.h" 27 #include "agent_common.h" 28 #include "jvmti_tools.h" 29 30 #define PASSED 0 31 #define STATUS_FAILED 2 32 33 extern "C" { 34 35 /* ========================================================================== */ 36 37 /* scaffold objects */ 38 static jlong timeout = 0; 39 40 /* event counts */ 41 static int MethodExitEventsCount = 0; 42 43 /* ========================================================================== */ 44 45 /** callback functions **/ 46 47 static void JNICALL 48 MethodExit(jvmtiEnv *jvmti_env, JNIEnv *jni_env, 49 jthread thread, jmethodID method, 50 jboolean was_poped_by_exception, jvalue return_value) { 51 char *name = NULL; 52 char *signature = NULL; 53 54 MethodExitEventsCount++; 55 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName, 56 jvmti_env, method, &name, &signature, NULL))) { 57 nsk_jvmti_setFailStatus(); 58 return; 59 } 60 NSK_DISPLAY2("MethodExit event: %s%s\n", name, signature); 61 if (name != NULL) 62 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name); 63 if (signature != NULL) 64 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature); 65 } 66 67 /* ========================================================================== */ 68 69 /** Agent algorithm. */ 70 static void JNICALL 71 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { 72 73 if (!nsk_jvmti_waitForSync(timeout)) 74 return; 75 76 /* resume debugee and wait for sync */ 77 if (!nsk_jvmti_resumeSync()) 78 return; 79 if (!nsk_jvmti_waitForSync(timeout)) 80 return; 81 82 NSK_DISPLAY1("MethodExit events received: %d\n", 83 MethodExitEventsCount); 84 if (!NSK_VERIFY(MethodExitEventsCount == 0)) 85 nsk_jvmti_setFailStatus(); 86 87 if (!nsk_jvmti_resumeSync()) 88 return; 89 } 90 91 /* ========================================================================== */ 92 93 /** Agent library initialization. */ 94 #ifdef STATIC_BUILD 95 JNIEXPORT jint JNICALL Agent_OnLoad_ma10t003a(JavaVM *jvm, char *options, void *reserved) { 96 return Agent_Initialize(jvm, options, reserved); 97 } 98 JNIEXPORT jint JNICALL Agent_OnAttach_ma10t003a(JavaVM *jvm, char *options, void *reserved) { 99 return Agent_Initialize(jvm, options, reserved); 100 } 101 JNIEXPORT jint JNI_OnLoad_ma10t003a(JavaVM *jvm, char *options, void *reserved) { 102 return JNI_VERSION_1_8; 103 } 104 #endif 105 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { 106 jvmtiEnv* jvmti = NULL; 107 jvmtiCapabilities caps; 108 jvmtiEventCallbacks callbacks; 109 110 NSK_DISPLAY0("Agent_OnLoad\n"); 111 112 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) 113 return JNI_ERR; 114 115 timeout = nsk_jvmti_getWaitTime() * 60 * 1000; 116 117 if (!NSK_VERIFY((jvmti = 118 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) 119 return JNI_ERR; 120 121 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) 122 return JNI_ERR; 123 124 memset(&caps, 0, sizeof(caps)); 125 caps.can_generate_method_exit_events = 1; 126 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) { 127 return JNI_ERR; 128 } 129 130 memset(&callbacks, 0, sizeof(callbacks)); 131 callbacks.MethodExit = &MethodExit; 132 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks))) 133 return JNI_ERR; 134 135 return JNI_OK; 136 } 137 138 /* ========================================================================== */ 139 140 }