/*

 * Copyright (c) 2008, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 <dlfcn.h>

#include <stdlib.h>

#include <jvm.h>

#include "jvm_symbols.h"

JvmSymbols* lookupJvmSymbols() {

    JvmSymbols* syms = (JvmSymbols*)malloc(sizeof(JvmSymbols));

    if (syms != NULL) {

        syms->GetVersion = (GetVersion_t)

            dlsym(RTLD_DEFAULT, "JVM_DTraceGetVersion");

        syms->IsSupported = (IsSupported_t)

            dlsym(RTLD_DEFAULT, "JVM_DTraceIsSupported");

        syms->Activate = (Activate_t)

            dlsym(RTLD_DEFAULT, "JVM_DTraceActivate");

        syms->Dispose = (Dispose_t)

            dlsym(RTLD_DEFAULT, "JVM_DTraceDispose");

        syms->IsProbeEnabled = (IsProbeEnabled_t)

            dlsym(RTLD_DEFAULT, "JVM_DTraceIsProbeEnabled");

        if ( syms->GetVersion == NULL || syms->Activate == NULL ||

             syms->IsProbeEnabled == NULL || syms->Dispose == NULL ||

             syms->IsSupported == NULL) {

            free(syms);

            syms = NULL;

        }

    }

    return syms;

}