1 /* 2 * Copyright (c) 2003, 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 <string.h> 25 #include "jvmti.h" 26 #include "agent_common.h" 27 #include "jni_tools.h" 28 #include "jvmti_tools.h" 29 30 extern "C" { 31 32 /* ============================================================================= */ 33 34 /* scaffold objects */ 35 static jlong timeout = 0; 36 37 /* constant names */ 38 #define THREAD_NAME "TestedThread" 39 40 /* constants */ 41 #define STORAGE_DATA_SIZE 1024 42 #define STORAGE_DATA_CHAR 'X' 43 44 /* storage structure */ 45 typedef struct _StorageStructure { 46 char data[STORAGE_DATA_SIZE]; 47 } StorageStructure; 48 49 /* ============================================================================= */ 50 51 /** Agent algorithm. */ 52 static void JNICALL 53 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { 54 55 NSK_DISPLAY0("Wait for thread to start\n"); 56 if (!nsk_jvmti_waitForSync(timeout)) 57 return; 58 59 /* perform testing */ 60 { 61 StorageStructure storageData; 62 StorageStructure* initialStorage = &storageData; 63 StorageStructure* obtainedStorage = NULL; 64 65 memset(storageData.data, STORAGE_DATA_CHAR, STORAGE_DATA_SIZE); 66 67 NSK_DISPLAY1("SetThreadLocalStorage() for current agent thread with pointer: %p\n", 68 (void*)initialStorage); 69 if (!NSK_JVMTI_VERIFY(jvmti->SetThreadLocalStorage(NULL, (void*)initialStorage))) { 70 nsk_jvmti_setFailStatus(); 71 return; 72 } 73 74 NSK_DISPLAY0("Let debuggee to run\n"); 75 if (!nsk_jvmti_resumeSync()) 76 return; 77 78 NSK_DISPLAY0("Wait for debuggee to run\n"); 79 if (!nsk_jvmti_waitForSync(timeout)) 80 return; 81 82 NSK_DISPLAY0("GetThreadLocalStorage() for current agent thread\n"); 83 if (!NSK_JVMTI_VERIFY(jvmti->GetThreadLocalStorage(NULL, (void**)&obtainedStorage))) { 84 nsk_jvmti_setFailStatus(); 85 return; 86 } 87 NSK_DISPLAY1(" ... got storage: %p\n", (void*)obtainedStorage); 88 89 NSK_DISPLAY0("Check storage data obtained for current agent thread\n"); 90 if (obtainedStorage != initialStorage) { 91 NSK_COMPLAIN2("Wrong storage pointer returned for tested thread:\n" 92 "# got pointer: %p\n" 93 "# expected: %p\n", 94 (void*)obtainedStorage, (void*)initialStorage); 95 nsk_jvmti_setFailStatus(); 96 } else { 97 int changed = 0; 98 int i; 99 100 for (i = 0; i < STORAGE_DATA_SIZE; i++) { 101 if (obtainedStorage->data[i] != STORAGE_DATA_CHAR) { 102 changed++; 103 } 104 } 105 106 if (changed > 0) { 107 NSK_COMPLAIN2("Data changed in returned storage for current agent thread:\n" 108 "# changed bytes: %d\n" 109 "# total bytes: %d\n", 110 changed, STORAGE_DATA_SIZE); 111 nsk_jvmti_setFailStatus(); 112 } 113 } 114 } 115 116 NSK_DISPLAY0("Let debugee to finish\n"); 117 if (!nsk_jvmti_resumeSync()) 118 return; 119 } 120 121 /* ============================================================================= */ 122 123 /** Agent library initialization. */ 124 #ifdef STATIC_BUILD 125 JNIEXPORT jint JNICALL Agent_OnLoad_setthrdstor002(JavaVM *jvm, char *options, void *reserved) { 126 return Agent_Initialize(jvm, options, reserved); 127 } 128 JNIEXPORT jint JNICALL Agent_OnAttach_setthrdstor002(JavaVM *jvm, char *options, void *reserved) { 129 return Agent_Initialize(jvm, options, reserved); 130 } 131 JNIEXPORT jint JNI_OnLoad_setthrdstor002(JavaVM *jvm, char *options, void *reserved) { 132 return JNI_VERSION_1_8; 133 } 134 #endif 135 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { 136 jvmtiEnv* jvmti = NULL; 137 138 /* init framework and parse options */ 139 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) 140 return JNI_ERR; 141 142 timeout = nsk_jvmti_getWaitTime() * 60 * 1000; 143 144 /* create JVMTI environment */ 145 if (!NSK_VERIFY((jvmti = 146 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) 147 return JNI_ERR; 148 149 /* register agent proc and arg */ 150 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) 151 return JNI_ERR; 152 153 return JNI_OK; 154 } 155 156 /* ============================================================================= */ 157 158 }