| /* |
| * Copyright (c) 2004, 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 <string.h> |
| #include <stdlib.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "jni_tools.h" |
| #include "jvmti_tools.h" |
| #include "JVMTITools.h" |
| #include "nsk_list.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ============================================================================= */ |
| |
| /* scaffold objects */ |
| static jvmtiEnv *jvmti = NULL; |
| static jlong timeout = 0; |
| static jrawMonitorID syncLock = NULL; |
| |
| static int methodLoadCount = 0; |
| static int methodUnloadCount = 0; |
| |
| #define NAME_LENGTH 50 |
| const void *plist = NULL; |
| |
| typedef struct nsk_jvmti_CompiledMethodIDStruct { |
| jmethodID method; |
| const void* code_addr; |
| char name[NAME_LENGTH]; |
| } nsk_jvmti_CompiledMethod; |
| |
| |
| /* ============================================================================= */ |
| |
| /* callbacks */ |
| void JNICALL |
| cbCompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size, |
| const void* code_addr, jint map_length, |
| const jvmtiAddrLocationMap* map, const void* compile_info) { |
| char *name; |
| char *sign; |
| char *genc; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5( |
| GetMethodName, jvmti_env, method, &name, &sign, &genc))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!strncmp(name,"javaMethod", 8)) { |
| nsk_jvmti_CompiledMethod *rec = |
| (nsk_jvmti_CompiledMethod *)malloc(sizeof(nsk_jvmti_CompiledMethod)); |
| |
| rec->method = method; |
| rec->code_addr = code_addr; |
| strncpy(rec->name, name, NAME_LENGTH); |
| rec->name[NAME_LENGTH - 1] = '\0'; |
| |
| if (!NSK_VERIFY(nsk_list_add(plist, rec))) { |
| nsk_jvmti_setFailStatus(); |
| free((void *)rec); |
| } else { |
| NSK_DISPLAY0(">>>JVMTI_EVENT_COMPILED_METHOD_LOAD received for\n"); |
| NSK_DISPLAY1("\t\tmethod: %s\n", rec->name); |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| methodLoadCount++; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)name))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)sign))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (genc != NULL) |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)genc))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| void JNICALL |
| cbCompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method, |
| const void* code_addr) { |
| |
| nsk_jvmti_CompiledMethod *rec; |
| |
| int count = nsk_list_getCount(plist); |
| int i; |
| |
| for (i = 0; i < count; i ++) { |
| rec = (nsk_jvmti_CompiledMethod *)nsk_list_get(plist, i); |
| if ((rec->code_addr == code_addr) && (rec->method == method)) { |
| NSK_DISPLAY0(">>>JVMTI_EVENT_COMPILED_METHOD_UNLOAD received for\n"); |
| NSK_DISPLAY1("\t\tmethod: %s\n", rec->name); |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| methodUnloadCount++; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| free(rec); |
| nsk_list_remove(plist, i); |
| return; |
| } |
| |
| } |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| static int |
| enableEvent(jvmtiEventMode enable, jvmtiEvent event) { |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, enable, |
| event, NULL))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| int checkEvents() { |
| |
| int result = methodUnloadCount <= methodLoadCount; |
| |
| if (result) { |
| NSK_DISPLAY0("Received correct number of events:\n"); |
| NSK_DISPLAY1("\t\tCOMPILED_METHOD_LOAD events number = %d\n", |
| methodLoadCount); |
| NSK_DISPLAY1("\t\tCOMPILED_METHOD_UNLOAD events number = %d\n", |
| methodUnloadCount); |
| } else { |
| NSK_COMPLAIN0("Received incorrect number of events:\n"); |
| NSK_COMPLAIN1("\t\tCOMPILED_METHOD_LOAD events number = %d\n", |
| methodLoadCount); |
| NSK_COMPLAIN1("\t\tCOMPILED_METHOD_UNLOAD events number = %d\n", |
| methodUnloadCount); |
| } |
| |
| return result; |
| } |
| |
| /* ============================================================================= */ |
| |
| static int |
| setCallBacks() { |
| |
| jvmtiEventCallbacks eventCallbacks; |
| |
| memset(&eventCallbacks, 0, sizeof(eventCallbacks)); |
| |
| eventCallbacks.CompiledMethodLoad = cbCompiledMethodLoad; |
| eventCallbacks.CompiledMethodUnload = cbCompiledMethodUnload; |
| |
| return NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks, jvmti, |
| &eventCallbacks, |
| sizeof(eventCallbacks))); |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { |
| |
| int i; |
| |
| int attempts = nsk_jvmti_findOptionIntValue("attempts", 1); |
| |
| for (i = 0; i < attempts; i++) { |
| |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| if (!checkEvents()) |
| nsk_jvmti_setFailStatus(); |
| |
| NSK_DISPLAY0("Let debuggee to continue\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| { |
| int count = nsk_list_getCount(plist); |
| |
| while (count > 0) { |
| free((void *)nsk_list_get(plist, 0)); |
| nsk_list_remove(plist, 0); |
| count = nsk_list_getCount(plist); |
| } |
| |
| } |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_em07t002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_em07t002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_em07t002(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| |
| if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) { |
| nsk_jvmti_setFailStatus(); |
| return JNI_ERR; |
| } |
| |
| if (!NSK_VERIFY((plist = (const void *)nsk_list_create()) != NULL)) |
| return JNI_ERR; |
| |
| { |
| jvmtiCapabilities caps; |
| memset(&caps, 0, sizeof(caps)); |
| |
| caps.can_generate_compiled_method_load_events = 1; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) |
| return JNI_ERR; |
| } |
| |
| if (!setCallBacks()) { |
| return JNI_ERR; |
| } |
| |
| if (!enableEvent(JVMTI_ENABLE, JVMTI_EVENT_COMPILED_METHOD_LOAD) || |
| !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
| return JNI_ERR; |
| } |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
