| /* |
| * 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 |
| |
| #ifndef JNI_ENV_ARG1 |
| #ifdef __cplusplus |
| #define JNI_ENV_ARG1(x) |
| #else |
| #define JNI_ENV_ARG1(x) x |
| #endif |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| static JavaVM *vm; |
| static jvmtiEnv *jvmti = NULL; |
| static jniNativeInterface *orig_jni_functions = NULL; |
| |
| static int verbose = 0; |
| static jint result = PASSED; |
| |
| void redirect(JNIEnv *env, jvmtiError exError) { |
| jvmtiError err; |
| |
| if (verbose) |
| printf("\ntrying to get the JNI function table expecting the error %s to be returned ...\n", |
| TranslateError(exError)); |
| |
| if ((err = (*jvmti)->GetJNIFunctionTable(jvmti, |
| (exError==JVMTI_ERROR_NULL_POINTER)?NULL:&orig_jni_functions)) != |
| exError) { |
| result = STATUS_FAILED; |
| printf("(%s,%d): TEST FAILED: GetJNIFunctionTable() returns %s instead of %s as expected\n", |
| __FILE__, __LINE__, TranslateError(err), TranslateError(exError)); |
| return; |
| } |
| else if (verbose) |
| printf("CHECK PASSED: GetJNIFunctionTable() returns %s as expected\n", |
| TranslateError(err)); |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_nsk_jvmti_GetJNIFunctionTable_getjniftab002_check(JNIEnv *env, jobject obj) { |
| jvmtiError err; |
| JNIEnv *nextEnv = NULL; |
| |
| if (jvmti == NULL) { |
| printf("(%s,%d): TEST FAILURE: JVMTI client was not properly loaded\n", |
| __FILE__, __LINE__); |
| return STATUS_FAILED; |
| } |
| |
| /* a) Verifying the error JVMTI_ERROR_NULL_POINTER */ |
| if (verbose) |
| printf("\na) Checking the function with the parameter JVMTI_ERROR_NULL_POINTER ...\n"); |
| redirect(env, JVMTI_ERROR_NULL_POINTER); |
| |
| /* b) Verifying the error JVMTI_ERROR_UNATTACHED_THREAD |
| Note: the JNI spec says that the main thread can be detached from the VM |
| only since JDK 1.2 */ |
| if (verbose) |
| printf("\nb) Checking the function with the detached thread ...\n\ndetaching the main thread ...\n"); |
| if ((err = |
| JNI_ENV_PTR(vm)->DetachCurrentThread( |
| JNI_ENV_ARG1(vm))) != 0) |
| printf("(%s,%d): Warning: DetachCurrentThread() returns: %d\n\ |
| \tcheck with the detached main thread skipped\n", |
| __FILE__, __LINE__, err); |
| else { |
| redirect(env, JVMTI_ERROR_UNATTACHED_THREAD); |
| |
| if (verbose) |
| printf("\nattaching the main thread back ...\n"); |
| if ((err = |
| JNI_ENV_PTR(vm)->AttachCurrentThread( |
| JNI_ENV_ARG(vm, (void **) &nextEnv), (void *) 0)) != 0) { |
| printf("(%s,%d): TEST FAILURE: waitingThread: AttachCurrentThread() returns: %d\n", |
| __FILE__, __LINE__, err); |
| return STATUS_FAILED; |
| } |
| } |
| |
| return result; |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_getjniftab002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_getjniftab002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_getjniftab002(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| |
| if (options != NULL && strcmp(options, "-verbose") == 0) |
| verbose = 1; |
| |
| if (verbose) |
| printf("verbose mode on\n"); |
| |
| res = JNI_ENV_PTR(jvm)-> |
| GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), JVMTI_VERSION_1_1); |
| if (res != JNI_OK || jvmti == NULL) { |
| printf("(%s,%d): Failed to call GetEnv\n", __FILE__, __LINE__); |
| return JNI_ERR; |
| } |
| |
| vm = jvm; |
| |
| return JNI_OK; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |