--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/hotswap/HS203/hs203t001/hs203t001.c Thu May 24 17:12:15 2018 -0700
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2007, 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 <stdio.h>
+#include <string.h>
+#include <jvmti.h>
+#include "agent_common.h"
+#include <jni.h>
+#include "jvmti_tools.h"
+#include "JVMTITools.h"
+/*
+ README
+ ******
+ HS203: Hotswap + pop frame within events
+ T001:
+ 1. Set a breakpoint.
+ 2. Upon reaching the breakpoint, enable SingleStep.
+ 3. Redefine a class within SingleStep callback. Stepping should
+ be continued in obsolete method.
+ 4. Pop a currently executed frame. Stepping should be continued
+ on invoke instruction.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread"
+
+#define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread"
+#define CLASS_NAME "Lnsk/jvmti/scenarios/hotswap/HS203/hs203t001/MyThread;"
+#define METHOD_NAME "doThisFunction"
+#define METHOD_SIGN "()V"
+
+static jint redefineNumber;
+static jvmtiEnv * jvmti;
+
+JNIEXPORT void JNICALL
+ callbackClassLoad(jvmtiEnv *jvmti,
+ JNIEnv* jni,
+ jthread thread,
+ jclass klass) {
+ char * className;
+ char * generic;
+ redefineNumber=0;
+ (*jvmti)->GetClassSignature(jvmti, klass, &className, &generic);
+ if (strcmp(className,CLASS_NAME) == 0) {
+ jmethodID method;
+ method = (*jni)->GetMethodID(jni,klass,METHOD_NAME,METHOD_SIGN);
+ if (method != NULL) {
+ jlocation start;
+ jlocation end;
+ jvmtiError err ;
+ err=(*jvmti)->GetMethodLocation(jvmti, method, &start, &end);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf("Agent:: NO ERRORS FOUND \n");
+ err= (*jvmti)->SetBreakpoint(jvmti,method, start);
+ if ( err == JVMTI_ERROR_NONE) {
+ nsk_printf(" Class Name %s \n", className);
+ nsk_printf("Agent:: Breakpoint set \n");
+ } else {
+ nsk_printf(" ## Error occured %s \n",TranslateError(err));
+ }
+ } else {
+ nsk_printf("Agent:: ***ERROR OCCURED .. in METHOD LOCATION FINDER \n");
+ }
+ } else {
+ nsk_printf("Agent:: ***ERROR OCCURED .. COUND NOT FIND THE METHOD AND SIGNATURE SPECIFIED \n");
+ }
+ }
+ }
+
+void JNICALL callbackSingleStep(jvmtiEnv *jvmti, JNIEnv* jni,
+ jthread thread,
+ jmethodID method,
+ jlocation location) {
+ jclass threadClass;
+ jvmtiError err;
+ char fileName[512];
+ threadClass = (*jni)->FindClass(jni,SEARCH_NAME);
+ nsk_jvmti_getFileName(redefineNumber, FILE_NAME, fileName,
+ sizeof(fileName)/sizeof(char));
+ nsk_printf(" %d..",redefineNumber);
+ if ( nsk_jvmti_redefineClass(jvmti, threadClass, fileName) == NSK_TRUE) {
+ nsk_printf("\nMyClass :: Successfully redefined..\n");
+ } else {
+ nsk_printf("\nMyClass :: Failed to redefine ..\n");
+ }
+ nsk_printf(" End of REDEFINE CLASS LOADER \n");
+ err=(*jvmti)->SuspendThread(jvmti,thread);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf("Agent:: Succeded in suspending..\n");
+ } else {
+ nsk_printf(" ## Error occured %s \n",TranslateError(err));
+ }
+}
+
+void JNICALL
+callbackBreakpoint(jvmtiEnv *jvmti,
+ JNIEnv* jni,
+ jthread thread,
+ jmethodID method,
+ jlocation location) {
+ nsk_printf("Agent::... BreakPoint Reached..\n");
+ if ( nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_SINGLE_STEP,thread) == NSK_TRUE ) {
+ nsk_printf(" .... Enabled..\n");
+ }
+ return;
+}
+
+#ifdef STATIC_BUILD
+JNIEXPORT jint JNICALL Agent_OnLoad_hs203t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_hs203t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_hs203t001(JavaVM *jvm, char *options, void *reserved) {
+ return JNI_VERSION_1_8;
+}
+#endif
+jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) {
+ jint rc ;
+ nsk_printf("Agent:: VM.. Started..\n");
+ rc=(*vm)->GetEnv(vm, (void **)&jvmti, JVMTI_VERSION_1_1);
+ if ( rc!= JNI_OK ) {
+ nsk_printf("Agent:: Could not load JVMTI interface \n");
+ return JNI_ERR;
+ } else {
+ jvmtiCapabilities caps;
+ jvmtiEventCallbacks eventCallbacks;
+ if (nsk_jvmti_parseOptions(options) == NSK_FALSE ) {
+ nsk_printf("# error agent Failed to parse options \n");
+ return JNI_ERR;
+ }
+ memset(&caps, 0, sizeof(caps));
+ caps.can_redefine_classes = 1;
+ caps.can_suspend=1;
+ caps.can_pop_frame=1;
+ caps.can_generate_breakpoint_events=1;
+ caps.can_generate_all_class_hook_events=1;
+ caps.can_generate_single_step_events=1;
+ (*jvmti)->AddCapabilities(jvmti, &caps);
+ memset(&eventCallbacks, 0, sizeof(eventCallbacks));
+ eventCallbacks.ClassLoad =callbackClassLoad;
+ eventCallbacks.Breakpoint = callbackBreakpoint;
+ eventCallbacks.SingleStep =callbackSingleStep;
+ rc=(*jvmti)->SetEventCallbacks(jvmti,&eventCallbacks, sizeof(eventCallbacks));
+ if (rc != JVMTI_ERROR_NONE) {
+ nsk_printf(" Agent:: Error occured while setting event call back \n");
+ return JNI_ERR;
+ }
+ if ( (nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_CLASS_LOAD, NULL) == NSK_TRUE ) &&
+ (nsk_jvmti_enableNotification(jvmti,JVMTI_EVENT_BREAKPOINT,NULL) == NSK_TRUE) ) {
+ nsk_printf("Agent :: NOTIFICATIONS ARE ENABLED \n");
+ } else {
+ nsk_printf(" Error in Eanableing Notifications..");
+ }
+ }
+ return JNI_OK;
+}
+
+
+JNIEXPORT jboolean JNICALL
+Java_nsk_jvmti_scenarios_hotswap_HS203_hs203t001_hs203t001_popThreadFrame(JNIEnv * jni,
+ jclass clas,
+ jthread thread) {
+ jvmtiError err ;
+ jboolean retvalue;
+ jint state;
+ nsk_printf("Agent:: POPING THE FRAME....\n");
+ retvalue = JNI_FALSE;
+ nsk_printf(" Here ");
+ (*jvmti)->GetThreadState(jvmti, thread, &state);
+ nsk_printf(" Here ");
+ if ( state & JVMTI_THREAD_STATE_SUSPENDED) {
+ err = (*jvmti)->PopFrame(jvmti,thread);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf("Agent:: NO Errors poped very well ..\n");
+ retvalue = JNI_TRUE;
+ } else {
+ nsk_printf(" Here -3");
+ nsk_printf(" ## Error occured %s \n",TranslateError(err));
+ }
+ } else {
+ nsk_printf("Agent:: Thread was not suspened.. check for capabilities, and java method signature ");
+ }
+ return retvalue;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_nsk_jvmti_scenarios_hotswap_HS203_hs203t001_hs203t001_resumeThread(JNIEnv * jni,
+ jclass clas,
+ jthread thread) {
+ jvmtiError err ;
+ jboolean retvalue;
+ retvalue = JNI_FALSE;
+ err =(*jvmti)->SetEventNotificationMode(jvmti,JVMTI_DISABLE,JVMTI_EVENT_SINGLE_STEP,thread);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf(" Agent:: cleared Single Step event");
+ } else {
+ nsk_printf(" Agent :: Failed to clear Single Step Event");
+ }
+ err =(*jvmti)->SetEventNotificationMode(jvmti,JVMTI_DISABLE,JVMTI_EVENT_BREAKPOINT,thread);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf(" Agent:: cleared Break point event");
+ } else {
+ nsk_printf(" Agent :: Failed to clear Single Step Event");
+ }
+ err = (*jvmti)->ResumeThread(jvmti,thread);
+ if (err == JVMTI_ERROR_NONE) {
+ nsk_printf(" Agent:: Thread Resumed..");
+ } else {
+ nsk_printf(" Failed.. to Resume the thread.");
+ }
+ return retvalue;
+}
+
+#ifdef __cplusplus
+}
+#endif