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/*
* 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;
}
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