| /* |
| * Copyright (c) 2003, 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 "JVMTITools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef JNI_ENV_ARG |
| |
| #ifdef __cplusplus |
| #define JNI_ENV_ARG(x, y) y |
| #define JNI_ENV_PTR(x) x |
| #else |
| #define JNI_ENV_ARG(x,y) x, y |
| #define JNI_ENV_PTR(x) (*x) |
| #endif |
| |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| static jvmtiEnv *jvmti = NULL; |
| static jvmtiCapabilities caps; |
| static jvmtiEventCallbacks callbacks; |
| static jint result = PASSED; |
| static jmethodID mid1; |
| |
| // If mustPass is false we just check if we have reached the correct instruction location. |
| // This is used to wait for the child thread to reach the expected position. |
| jboolean checkFrame(jvmtiEnv *jvmti_env, JNIEnv *env, |
| jthread thr, jmethodID exp_mid, jlocation exp_loc, jlocation exp_loc_alternative, jboolean mustPass) { |
| jvmtiError err; |
| jmethodID mid = NULL; |
| jlocation loc = -1; |
| char *meth, *sig, *generic; |
| jboolean isOk = JNI_FALSE; |
| |
| err = (*jvmti_env)->GetMethodName(jvmti_env, exp_mid, |
| &meth, &sig, &generic); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetMethodName) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| err = (*jvmti_env)->GetFrameLocation(jvmti_env, thr, 0, &mid, &loc); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetFrameLocation#%s) unexpected error: %s (%d)\n", |
| meth, TranslateError(err), err); |
| result = STATUS_FAILED; |
| } else { |
| if (exp_mid != mid) { |
| printf("Method \"%s\" current frame's method ID", meth); |
| printf(" expected: 0x%p, got: 0x%p\n", exp_mid, mid); |
| result = STATUS_FAILED; |
| } |
| isOk = exp_loc == loc || exp_loc_alternative == loc; |
| if (!isOk && mustPass) { |
| printf("Method \"%s\" current frame's location", meth); |
| printf(" expected: 0x%x or 0x%x, got: 0x%x%08x\n", |
| (jint)exp_loc, (jint)exp_loc_alternative, (jint)(loc >> 32), (jint)loc); |
| result = STATUS_FAILED; |
| } |
| } |
| return isOk && result == PASSED; |
| } |
| |
| void JNICALL |
| ExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr, |
| jmethodID method, jlocation location, jobject exception) { |
| if (method == mid1) { |
| checkFrame(jvmti_env, (JNIEnv *)env, thr, method, location, location, JNI_TRUE); |
| } |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_frameloc001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_frameloc001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_frameloc001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| jvmtiError err; |
| |
| res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), |
| JVMTI_VERSION_1_1); |
| if (res != JNI_OK || jvmti == NULL) { |
| printf("Wrong result of a valid call to GetEnv !\n"); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->AddCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(AddCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| if (!caps.can_suspend) { |
| printf("Warning: suspend/resume is not implemented\n"); |
| } |
| |
| if (caps.can_generate_exception_events) { |
| callbacks.ExceptionCatch = &ExceptionCatch; |
| err = (*jvmti)->SetEventCallbacks(jvmti, &callbacks, sizeof(callbacks)); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(SetEventCallbacks) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| } else { |
| printf("Warning: ExceptionCatch event is not implemented\n"); |
| } |
| |
| return JNI_OK; |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_GetFrameLocation_frameloc001_getReady(JNIEnv *env, jclass cls, |
| jclass klass) { |
| jvmtiError err; |
| |
| if (jvmti == NULL) { |
| printf("JVMTI client was not properly loaded!\n"); |
| result = STATUS_FAILED; |
| return; |
| } |
| |
| if (!caps.can_generate_exception_events) { |
| return; |
| } |
| |
| mid1 = JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG(env, klass), |
| "meth01", "(I)V"); |
| if (mid1 == NULL) { |
| printf("Cannot get jmethodID for method \"meth01\"\n"); |
| result = STATUS_FAILED; |
| return; |
| } |
| |
| err = (*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE, |
| JVMTI_EVENT_EXCEPTION_CATCH, NULL); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(SetEventNotificationMode) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| } |
| |
| JNIEXPORT jboolean JNICALL |
| Java_nsk_jvmti_GetFrameLocation_frameloc001_checkFrame01(JNIEnv *env, |
| jclass cls, jthread thr, jclass klass, jboolean mustPass) { |
| jvmtiError err; |
| jmethodID mid; |
| jboolean isOk = JNI_FALSE; |
| |
| if (jvmti == NULL || !caps.can_suspend) { |
| return JNI_TRUE; |
| } |
| |
| mid = JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG(env, klass), "run", "()V"); |
| if (mid == NULL) { |
| printf("Cannot get jmethodID for method \"run\"\n"); |
| result = STATUS_FAILED; |
| return JNI_TRUE; |
| } |
| |
| err = (*jvmti)->SuspendThread(jvmti, thr); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(SuspendThread) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| // This tests the location of a throw/catch statement. |
| // The returned location may be either the throw or the catch statement. |
| // It seems like the throw statement is returned in compiled code (-Xcomp), |
| // but the catch statement is returned in interpreted code. |
| // Both locations are valid. |
| // See bug JDK-4527281. |
| isOk = checkFrame(jvmti, env, thr, mid, 31, 32, mustPass); |
| |
| err = (*jvmti)->ResumeThread(jvmti, thr); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(ResumeThread) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| return isOk && result == PASSED; |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_nsk_jvmti_GetFrameLocation_frameloc001_getRes(JNIEnv *env, jclass cls) { |
| return result; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |