author | jcbeyler |
Thu, 08 Aug 2019 04:29:56 -0700 | |
changeset 57683 | 1cf884e437ea |
parent 57629 | 7aba63ce3b3a |
child 58679 | 9c3209ff7550 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007, 2019, 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 <jni.h> |
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#include <jvmti.h> |
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#include "agent_common.h" |
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#include <string.h> |
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#include "jvmti_tools.h" |
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#include "JVMTITools.h" |
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#include "jni_tools.h" |
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|
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extern "C" { |
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|
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#define DIR_NAME "newclass" |
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#define PATH_FORMAT "%s%02d/%s" |
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#define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread" |
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#define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread" |
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static jvmtiEnv * jvmti; |
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#ifdef STATIC_BUILD |
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JNIEXPORT jint JNICALL Agent_OnLoad_hs104t002(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_hs104t002(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_hs104t002(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 *vm, char *options, void *reserved) { |
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if (!NSK_VERIFY (JNI_OK == vm->GetEnv((void **)&jvmti, JVMTI_VERSION_1_1))) { |
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nsk_printf("#error Agent :: Could not load JVMTI interface.\n"); |
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return JNI_ERR; |
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} else { |
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jvmtiCapabilities caps; |
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if (!nsk_jvmti_parseOptions(options)) { |
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nsk_printf("# error agent Failed to parse options \n"); |
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return JNI_ERR; |
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} |
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memset(&caps, 0, sizeof(caps)); |
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caps.can_redefine_classes = 1; |
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if (!NSK_JVMTI_VERIFY (jvmti->AddCapabilities(&caps))) { |
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nsk_printf("#error Agent :: occured while adding capabilities.\n"); |
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return JNI_ERR; |
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} |
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} |
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return JNI_OK; |
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} |
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JNIEXPORT void JNICALL |
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Java_nsk_jvmti_scenarios_hotswap_HS104_hs104t002_hs104t002_redefineClasses( |
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JNIEnv *jni, jclass classObject) { |
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jclass cla; |
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char fileName[512]; |
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if (!NSK_JNI_VERIFY(jni, (cla = jni->FindClass(SEARCH_NAME)) != NULL)) { |
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nsk_printf(" Agent :: Failed to get class.\n"); |
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nsk_jvmti_agentFailed(); |
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return; |
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} |
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nsk_jvmti_getFileName(0, FILE_NAME, fileName, |
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sizeof(fileName)/sizeof(char)); |
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if (nsk_jvmti_redefineClass(jvmti, cla, fileName)) { |
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nsk_printf(" Agent :: Redefine successfull.\n"); |
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} else { |
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nsk_printf("# error Agent :: Redefine failed.\n"); |
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nsk_jvmti_agentFailed(); |
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} |
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} |
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} |