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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* java.lang.VMClassLoader
*/
#include "Dalvik.h"
#include "native/InternalNativePriv.h"
/*
* static Class defineClass(ClassLoader cl, String name,
* byte[] data, int offset, int len, ProtectionDomain pd)
* throws ClassFormatError
*
* Convert an array of bytes to a Class object.
*/
static void Dalvik_java_lang_VMClassLoader_defineClass(const u4* args,
JValue* pResult)
{
Object* loader = (Object*) args[0];
StringObject* nameObj = (StringObject*) args[1];
const u1* data = (const u1*) args[2];
int offset = args[3];
int len = args[4];
Object* pd = (Object*) args[5];
char* name = NULL;
name = dvmCreateCstrFromString(nameObj);
LOGE("ERROR: defineClass(%p, %s, %p, %d, %d, %p)\n",
loader, name, data, offset, len, pd);
dvmThrowException("Ljava/lang/UnsupportedOperationException;",
"can't load this type of class file");
free(name);
RETURN_VOID();
}
/*
* static Class defineClass(ClassLoader cl, byte[] data, int offset,
* int len, ProtectionDomain pd)
* throws ClassFormatError
*
* Convert an array of bytes to a Class object. Deprecated version of
* previous method, lacks name parameter.
*/
static void Dalvik_java_lang_VMClassLoader_defineClass2(const u4* args,
JValue* pResult)
{
Object* loader = (Object*) args[0];
const u1* data = (const u1*) args[1];
int offset = args[2];
int len = args[3];
Object* pd = (Object*) args[4];
LOGE("ERROR: defineClass(%p, %p, %d, %d, %p)\n",
loader, data, offset, len, pd);
dvmThrowException("Ljava/lang/UnsupportedOperationException;",
"can't load this type of class file");
RETURN_VOID();
}
/*
* static Class findLoadedClass(ClassLoader cl, String name)
*/
static void Dalvik_java_lang_VMClassLoader_findLoadedClass(const u4* args,
JValue* pResult)
{
Object* loader = (Object*) args[0];
StringObject* nameObj = (StringObject*) args[1];
ClassObject* clazz = NULL;
char* name = NULL;
char* descriptor = NULL;
if (nameObj == NULL) {
dvmThrowException("Ljava/lang/NullPointerException;", NULL);
goto bail;
}
/*
* Get a UTF-8 copy of the string, and convert dots to slashes.
*/
name = dvmCreateCstrFromString(nameObj);
if (name == NULL)
goto bail;
descriptor = dvmDotToDescriptor(name);
if (descriptor == NULL)
goto bail;
clazz = dvmLookupClass(descriptor, loader, false);
LOGVV("look: %s ldr=%p --> %p\n", descriptor, loader, clazz);
bail:
free(name);
free(descriptor);
RETURN_PTR(clazz);
}
/*
* private static int getBootClassPathSize()
*
* Get the number of entries in the boot class path.
*/
static void Dalvik_java_lang_VMClassLoader_getBootClassPathSize(const u4* args,
JValue* pResult)
{
int count = dvmGetBootPathSize();
RETURN_INT(count);
}
/*
* private static String getBootClassPathResource(String name, int index)
*
* Find a resource with a matching name in a boot class path entry.
*
* This mimics the previous VM interface, since we're sharing class libraries.
*/
static void Dalvik_java_lang_VMClassLoader_getBootClassPathResource(
const u4* args, JValue* pResult)
{
StringObject* nameObj = (StringObject*) args[0];
StringObject* result;
int idx = args[1];
char* name;
name = dvmCreateCstrFromString(nameObj);
if (name == NULL)
RETURN_PTR(NULL);
result = dvmGetBootPathResource(name, idx);
free(name);
dvmReleaseTrackedAlloc((Object*)result, NULL);
RETURN_PTR(result);
}
/*
* static final Class getPrimitiveClass(char prim_type)
*/
static void Dalvik_java_lang_VMClassLoader_getPrimitiveClass(const u4* args,
JValue* pResult)
{
int primType = args[0];
pResult->l = dvmFindPrimitiveClass(primType);
}
/*
* static Class loadClass(String name, boolean resolve)
* throws ClassNotFoundException
*
* Load class using bootstrap class loader.
*
* Return the Class object associated with the class or interface with
* the specified name.
*
* "name" is in "binary name" format, e.g. "dalvik.system.Debug$1".
*/
static void Dalvik_java_lang_VMClassLoader_loadClass(const u4* args,
JValue* pResult)
{
StringObject* nameObj = (StringObject*) args[0];
bool resolve = (args[1] != 0);
ClassObject* clazz;
clazz = dvmFindClassByName(nameObj, NULL, resolve);
assert(clazz == NULL || dvmIsClassLinked(clazz));
RETURN_PTR(clazz);
}
const DalvikNativeMethod dvm_java_lang_VMClassLoader[] = {
{ "defineClass", "(Ljava/lang/ClassLoader;Ljava/lang/String;[BIILjava/security/ProtectionDomain;)Ljava/lang/Class;",
Dalvik_java_lang_VMClassLoader_defineClass },
{ "defineClass", "(Ljava/lang/ClassLoader;[BIILjava/security/ProtectionDomain;)Ljava/lang/Class;",
Dalvik_java_lang_VMClassLoader_defineClass2 },
{ "findLoadedClass", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/Class;",
Dalvik_java_lang_VMClassLoader_findLoadedClass },
{ "getBootClassPathSize", "()I",
Dalvik_java_lang_VMClassLoader_getBootClassPathSize },
{ "getBootClassPathResource", "(Ljava/lang/String;I)Ljava/lang/String;",
Dalvik_java_lang_VMClassLoader_getBootClassPathResource },
{ "getPrimitiveClass", "(C)Ljava/lang/Class;",
Dalvik_java_lang_VMClassLoader_getPrimitiveClass },
{ "loadClass", "(Ljava/lang/String;Z)Ljava/lang/Class;",
Dalvik_java_lang_VMClassLoader_loadClass },
{ NULL, NULL, NULL },
};
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