136 lines
4.5 KiB
C++
136 lines
4.5 KiB
C++
/*
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* Copyright (c) 2003, 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 "JVMTITools.h"
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extern "C" {
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#define PASSED 0
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#define STATUS_FAILED 2
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static JavaVM *vm;
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static jvmtiEnv *jvmti = NULL;
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static jniNativeInterface *orig_jni_functions = NULL;
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static int verbose = 0;
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static jint result = PASSED;
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void redirect(JNIEnv *env, jvmtiError exError) {
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jvmtiError err;
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if (verbose)
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printf("\ntrying to get the JNI function table expecting the error %s to be returned ...\n",
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TranslateError(exError));
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err = jvmti->GetJNIFunctionTable((exError == JVMTI_ERROR_NULL_POINTER) ? NULL : &orig_jni_functions);
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if (err != exError) {
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result = STATUS_FAILED;
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printf("(%s,%d): TEST FAILED: GetJNIFunctionTable() returns %s instead of %s as expected\n",
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__FILE__, __LINE__, TranslateError(err), TranslateError(exError));
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return;
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}
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else if (verbose)
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printf("CHECK PASSED: GetJNIFunctionTable() returns %s as expected\n",
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TranslateError(err));
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_GetJNIFunctionTable_getjniftab002_check(JNIEnv *env, jobject obj) {
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jint err;
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JNIEnv *nextEnv = NULL;
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if (jvmti == NULL) {
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printf("(%s,%d): TEST FAILURE: JVMTI client was not properly loaded\n",
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__FILE__, __LINE__);
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return STATUS_FAILED;
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}
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/* a) Verifying the error JVMTI_ERROR_NULL_POINTER */
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if (verbose)
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printf("\na) Checking the function with the parameter JVMTI_ERROR_NULL_POINTER ...\n");
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redirect(env, JVMTI_ERROR_NULL_POINTER);
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/* b) Verifying the error JVMTI_ERROR_UNATTACHED_THREAD
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Note: the JNI spec says that the main thread can be detached from the VM
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only since JDK 1.2 */
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if (verbose)
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printf("\nb) Checking the function with the detached thread ...\n\ndetaching the main thread ...\n");
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err = vm->DetachCurrentThread();
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if (err != 0) {
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printf(
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"(%s,%d): Warning: DetachCurrentThread() returns: %d\n"
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"\tcheck with the detached main thread skipped\n",
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__FILE__, __LINE__, err);
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} else {
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redirect(env, JVMTI_ERROR_UNATTACHED_THREAD);
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if (verbose)
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printf("\nattaching the main thread back ...\n");
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err = vm->AttachCurrentThread((void **) &nextEnv, (void *) 0);
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if (err != 0) {
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printf("(%s,%d): TEST FAILURE: waitingThread: AttachCurrentThread() returns: %d\n",
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__FILE__, __LINE__, err);
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return STATUS_FAILED;
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}
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}
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return result;
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_getjniftab002(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNICALL Agent_OnAttach_getjniftab002(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNI_OnLoad_getjniftab002(JavaVM *jvm, char *options, void *reserved) {
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return JNI_VERSION_1_8;
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}
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#endif
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jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
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jint res;
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if (options != NULL && strcmp(options, "-verbose") == 0)
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verbose = 1;
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if (verbose)
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printf("verbose mode on\n");
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res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti == NULL) {
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printf("(%s,%d): Failed to call GetEnv\n", __FILE__, __LINE__);
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return JNI_ERR;
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}
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vm = jvm;
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return JNI_OK;
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}
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}
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