1 /*

     2  * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *

     8  *   - Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  *

    11  *   - Redistributions in binary form must reproduce the above copyright

    12  *     notice, this list of conditions and the following disclaimer in the

    13  *     documentation and/or other materials provided with the distribution.

    14  *

    15  *   - Neither the name of Oracle nor the names of its

    16  *     contributors may be used to endorse or promote products derived

    17  *     from this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30  */

    31 

    32 #include <string.h>

    33 

    34 #include "jni.h"

    35 #include "jni_util.h"

    36 

    37 #include "endian.hpp"

    38 #include "imageDecompressor.hpp"

    39 #include "imageFile.hpp"

    40 #include "inttypes.hpp"

    41 #include "jimage.hpp"

    42 #include "osSupport.hpp"

    43 

    44 #include "jdk_internal_jimage_NativeImageBuffer.h"

    45 

    46 

    47 JNIEXPORT jobject JNICALL

    48 Java_jdk_internal_jimage_NativeImageBuffer_getNativeMap(JNIEnv *env,

    49         jclass cls, jstring path) {

    50     const char *nativePath = env->GetStringUTFChars(path, NULL);

    51     ImageFileReader* reader = ImageFileReader::find_image(nativePath);

    52     env->ReleaseStringUTFChars(path, nativePath);

    53 

    54     if (reader != NULL) {

    55         return env->NewDirectByteBuffer(reader->get_index_address(), (jlong)reader->map_size());

    56     }

    57 

    58     return 0;

    59 }