author | iignatyev |
Thu, 24 May 2018 17:12:15 -0700 | |
changeset 50260 | 46c67f5e27c2 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007, 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 <jni.h> |
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#include "jvmti_tools.h" |
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#include "JVMTITools.h" |
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/* |
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README |
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****** |
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HS203: Hotswap + pop frame within events |
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T001: |
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1. Set a breakpoint. |
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2. Upon reaching the breakpoint, enable SingleStep. |
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3. Redefine a class within SingleStep callback. Stepping should |
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be continued in obsolete method. |
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4. Pop a currently executed frame. Stepping should be continued |
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on invoke instruction. |
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*/ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread" |
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|
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#define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread" |
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#define CLASS_NAME "Lnsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread;" |
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#define METHOD_NAME "doThisFunction" |
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#define METHOD_SIGN "()V" |
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static jint redefineNumber; |
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static jvmtiEnv * jvmti; |
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JNIEXPORT void JNICALL |
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callbackClassLoad(jvmtiEnv *jvmti, |
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JNIEnv* jni, |
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jthread thread, |
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jclass klass) { |
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char * className; |
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char * generic; |
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redefineNumber=0; |
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(*jvmti)->GetClassSignature(jvmti, klass, &className, &generic); |
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if (strcmp(className,CLASS_NAME) == 0) { |
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jmethodID method; |
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method = (*jni)->GetMethodID(jni,klass,METHOD_NAME,METHOD_SIGN); |
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if (method != NULL) { |
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jlocation start; |
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jlocation end; |
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jvmtiError err ; |
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err=(*jvmti)->GetMethodLocation(jvmti, method, &start, &end); |
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if (err == JVMTI_ERROR_NONE) { |
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nsk_printf("Agent:: NO ERRORS FOUND \n"); |
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err= (*jvmti)->SetBreakpoint(jvmti,method, start); |
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if ( err == JVMTI_ERROR_NONE) { |
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nsk_printf(" Class Name %s \n", className); |
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nsk_printf("Agent:: Breakpoint set \n"); |
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} else { |
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nsk_printf(" ## Error occured %s \n",TranslateError(err)); |
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} |
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} else { |
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nsk_printf("Agent:: ***ERROR OCCURED .. in METHOD LOCATION FINDER \n"); |
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} |
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} else { |
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nsk_printf("Agent:: ***ERROR OCCURED .. COUND NOT FIND THE METHOD AND SIGNATURE SPECIFIED \n"); |
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} |
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} |
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} |
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void JNICALL callbackSingleStep(jvmtiEnv *jvmti, JNIEnv* jni, |
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jthread thread, |
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jmethodID method, |
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jlocation location) { |
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jclass threadClass; |
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jvmtiError err; |
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char fileName[512]; |
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threadClass = (*jni)->FindClass(jni,SEARCH_NAME); |
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nsk_jvmti_getFileName(redefineNumber, FILE_NAME, fileName, |
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sizeof(fileName)/sizeof(char)); |
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nsk_printf(" %d..",redefineNumber); |
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if ( nsk_jvmti_redefineClass(jvmti, threadClass, fileName) == NSK_TRUE) { |
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nsk_printf("\nMyClass :: Successfully redefined..\n"); |
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} else { |
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nsk_printf("\nMyClass :: Failed to redefine ..\n"); |
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} |
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nsk_printf(" End of REDEFINE CLASS LOADER \n"); |
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err=(*jvmti)->SuspendThread(jvmti,thread); |
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if (err == JVMTI_ERROR_NONE) { |
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nsk_printf("Agent:: Succeded in suspending..\n"); |
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} else { |
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nsk_printf(" ## Error occured %s \n",TranslateError(err)); |
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} |
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} |
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void JNICALL |
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callbackBreakpoint(jvmtiEnv *jvmti, |
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JNIEnv* jni, |
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jthread thread, |
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120 |
jmethodID method, |
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121 |
jlocation location) { |
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122 |
nsk_printf("Agent::... BreakPoint Reached..\n"); |
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123 |
if ( nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_SINGLE_STEP,thread) == NSK_TRUE ) { |
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124 |
nsk_printf(" .... Enabled..\n"); |
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125 |
} |
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126 |
return; |
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127 |
} |
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128 |
|
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129 |
#ifdef STATIC_BUILD |
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130 |
JNIEXPORT jint JNICALL Agent_OnLoad_hs203t001(JavaVM *jvm, char *options, void *reserved) { |
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131 |
return Agent_Initialize(jvm, options, reserved); |
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132 |
} |
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133 |
JNIEXPORT jint JNICALL Agent_OnAttach_hs203t001(JavaVM *jvm, char *options, void *reserved) { |
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134 |
return Agent_Initialize(jvm, options, reserved); |
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135 |
} |
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136 |
JNIEXPORT jint JNI_OnLoad_hs203t001(JavaVM *jvm, char *options, void *reserved) { |
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137 |
return JNI_VERSION_1_8; |
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138 |
} |
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139 |
#endif |
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140 |
jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) { |
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141 |
jint rc ; |
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142 |
nsk_printf("Agent:: VM.. Started..\n"); |
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143 |
rc=(*vm)->GetEnv(vm, (void **)&jvmti, JVMTI_VERSION_1_1); |
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144 |
if ( rc!= JNI_OK ) { |
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145 |
nsk_printf("Agent:: Could not load JVMTI interface \n"); |
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146 |
return JNI_ERR; |
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147 |
} else { |
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148 |
jvmtiCapabilities caps; |
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149 |
jvmtiEventCallbacks eventCallbacks; |
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150 |
if (nsk_jvmti_parseOptions(options) == NSK_FALSE ) { |
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151 |
nsk_printf("# error agent Failed to parse options \n"); |
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152 |
return JNI_ERR; |
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153 |
} |
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154 |
memset(&caps, 0, sizeof(caps)); |
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155 |
caps.can_redefine_classes = 1; |
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156 |
caps.can_suspend=1; |
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157 |
caps.can_pop_frame=1; |
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158 |
caps.can_generate_breakpoint_events=1; |
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159 |
caps.can_generate_all_class_hook_events=1; |
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160 |
caps.can_generate_single_step_events=1; |
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161 |
(*jvmti)->AddCapabilities(jvmti, &caps); |
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162 |
memset(&eventCallbacks, 0, sizeof(eventCallbacks)); |
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163 |
eventCallbacks.ClassLoad =callbackClassLoad; |
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164 |
eventCallbacks.Breakpoint = callbackBreakpoint; |
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165 |
eventCallbacks.SingleStep =callbackSingleStep; |
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166 |
rc=(*jvmti)->SetEventCallbacks(jvmti,&eventCallbacks, sizeof(eventCallbacks)); |
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167 |
if (rc != JVMTI_ERROR_NONE) { |
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168 |
nsk_printf(" Agent:: Error occured while setting event call back \n"); |
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|
169 |
return JNI_ERR; |
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|
170 |
} |
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171 |
if ( (nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_CLASS_LOAD, NULL) == NSK_TRUE ) && |
46c67f5e27c2
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172 |
(nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_BREAKPOINT,NULL) == NSK_TRUE) ) { |
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173 |
nsk_printf("Agent :: NOTIFICATIONS ARE ENABLED \n"); |
46c67f5e27c2
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|
174 |
} else { |
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175 |
nsk_printf(" Error in Eanableing Notifications.."); |
46c67f5e27c2
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176 |
} |
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|
177 |
} |
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|
178 |
return JNI_OK; |
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|
179 |
} |
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|
180 |
|
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|
181 |
|
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182 |
JNIEXPORT jboolean JNICALL |
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183 |
Java_nsk_jvmti_scenarios_hotswap_HS203_hs203t001_hs203t001_popThreadFrame(JNIEnv * jni, |
46c67f5e27c2
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|
184 |
jclass clas, |
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|
185 |
jthread thread) { |
46c67f5e27c2
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|
186 |
jvmtiError err ; |
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|
187 |
jboolean retvalue; |
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|
188 |
jint state; |
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189 |
nsk_printf("Agent:: POPING THE FRAME....\n"); |
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190 |
retvalue = JNI_FALSE; |
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|
191 |
nsk_printf(" Here "); |
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192 |
(*jvmti)->GetThreadState(jvmti, thread, &state); |
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193 |
nsk_printf(" Here "); |
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194 |
if ( state & JVMTI_THREAD_STATE_SUSPENDED) { |
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195 |
err = (*jvmti)->PopFrame(jvmti,thread); |
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196 |
if (err == JVMTI_ERROR_NONE) { |
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197 |
nsk_printf("Agent:: NO Errors poped very well ..\n"); |
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|
198 |
retvalue = JNI_TRUE; |
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|
199 |
} else { |
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200 |
nsk_printf(" Here -3"); |
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|
201 |
nsk_printf(" ## Error occured %s \n",TranslateError(err)); |
46c67f5e27c2
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|
202 |
} |
46c67f5e27c2
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|
203 |
} else { |
46c67f5e27c2
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204 |
nsk_printf("Agent:: Thread was not suspened.. check for capabilities, and java method signature "); |
46c67f5e27c2
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|
205 |
} |
46c67f5e27c2
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|
206 |
return retvalue; |
46c67f5e27c2
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|
207 |
} |
46c67f5e27c2
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|
208 |
|
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209 |
JNIEXPORT jboolean JNICALL |
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210 |
Java_nsk_jvmti_scenarios_hotswap_HS203_hs203t001_hs203t001_resumeThread(JNIEnv * jni, |
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|
211 |
jclass clas, |
46c67f5e27c2
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|
212 |
jthread thread) { |
46c67f5e27c2
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|
213 |
jvmtiError err ; |
46c67f5e27c2
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|
214 |
jboolean retvalue; |
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|
215 |
retvalue = JNI_FALSE; |
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216 |
err =(*jvmti)->SetEventNotificationMode(jvmti,JVMTI_DISABLE,JVMTI_EVENT_SINGLE_STEP,thread); |
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217 |
if (err == JVMTI_ERROR_NONE) { |
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218 |
nsk_printf(" Agent:: cleared Single Step event"); |
46c67f5e27c2
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|
219 |
} else { |
46c67f5e27c2
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220 |
nsk_printf(" Agent :: Failed to clear Single Step Event"); |
46c67f5e27c2
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221 |
} |
46c67f5e27c2
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222 |
err =(*jvmti)->SetEventNotificationMode(jvmti,JVMTI_DISABLE,JVMTI_EVENT_BREAKPOINT,thread); |
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223 |
if (err == JVMTI_ERROR_NONE) { |
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224 |
nsk_printf(" Agent:: cleared Break point event"); |
46c67f5e27c2
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|
225 |
} else { |
46c67f5e27c2
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|
226 |
nsk_printf(" Agent :: Failed to clear Single Step Event"); |
46c67f5e27c2
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|
227 |
} |
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228 |
err = (*jvmti)->ResumeThread(jvmti,thread); |
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229 |
if (err == JVMTI_ERROR_NONE) { |
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230 |
nsk_printf(" Agent:: Thread Resumed.."); |
46c67f5e27c2
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|
231 |
} else { |
46c67f5e27c2
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232 |
nsk_printf(" Failed.. to Resume the thread."); |
46c67f5e27c2
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|
233 |
} |
46c67f5e27c2
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|
234 |
return retvalue; |
46c67f5e27c2
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|
235 |
} |
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|
236 |
|
46c67f5e27c2
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|
237 |
#ifdef __cplusplus |
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|
238 |
} |
46c67f5e27c2
8199383: [TESTBUG] Open source VM testbase JVMTI tests
iignatyev
parents:
diff
changeset
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#endif |