| /* |
| * 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 "nsk_tools.h" |
| #include "JVMTITools.h" |
| #include "jvmti_tools.h" |
| #include "jni_tools.h" |
| |
| /* ============================================================================= */ |
| |
| #define FOO 1 |
| |
| /* ============================================================================= */ |
| |
| static char *prefix = NULL; |
| |
| /* ============================================================================= */ |
| |
| static jvmtiEnv *jvmti = NULL; |
| |
| /* ============================================================================= */ |
| |
| JNIEXPORT int JNICALL |
| Java_nsk_jvmti_SetNativeMethodPrefix_SetNativeMethodPrefix002_foo ( |
| JNIEnv *jni |
| , jclass klass |
| ) |
| { |
| NSK_DISPLAY1(" >>> SetNativeMethodPrefix002.foo() (Library: SetNativeMethodPrefix002).\n", prefix); |
| return FOO; |
| } |
| |
| /* ============================================================================= */ |
| |
| static jboolean setMethodPrefix (char *prefix) |
| { |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2( |
| SetNativeMethodPrefix |
| , jvmti |
| , prefix) |
| ) |
| ) |
| return JNI_FALSE; |
| |
| return JNI_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /* Agent initialization procedure */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_SetNativeMethodPrefix002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_SetNativeMethodPrefix002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_SetNativeMethodPrefix002(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) |
| { |
| jvmtiCapabilities caps; |
| int apply; |
| |
| if (!NSK_VERIFY( |
| nsk_jvmti_parseOptions(options) |
| ) |
| ) |
| return JNI_ERR; |
| |
| // Parse additional parameters |
| |
| // Specify native method prefix |
| prefix = (char *)nsk_jvmti_findOptionValue("prefix"); |
| if (prefix != NULL) { |
| NSK_DISPLAY1("Prefix: %s\n", prefix); |
| } |
| |
| // Specify whether prefix should be applied or not |
| apply = nsk_jvmti_findOptionIntValue("apply", 1); |
| |
| if (!NSK_VERIFY( |
| (jvmti = nsk_jvmti_createJVMTIEnv(vm, reserved)) != NULL |
| ) |
| ) |
| return JNI_ERR; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2( |
| GetCapabilities |
| , jvmti |
| , &caps) |
| ) |
| ) |
| return JNI_ERR; |
| |
| // Register all necessary JVM capabilities |
| caps.can_set_native_method_prefix = 1; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2( |
| AddCapabilities |
| , jvmti |
| , &caps) |
| ) |
| ) |
| return JNI_ERR; |
| |
| |
| if (apply) { |
| if (!setMethodPrefix(prefix)) { |
| NSK_COMPLAIN0("Can't specify prefix for native method lookup."); |
| return JNI_ERR; |
| } |
| } |
| |
| return JNI_OK; |
| } |