blob: 1bc2c1ef35f61df471e020ed7d280db0f1330344 [file] [log] [blame]
/*
* Copyright 2016 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.
*/
#include <pthread.h>
#include <cstdio>
#include <iostream>
#include <vector>
#include "jni.h"
#include "gc/heap.h"
#include "gc/space/image_space.h"
#include "gc/space/space-inl.h"
#include "image.h"
#include "mirror/class.h"
#include "nativehelper/scoped_utf_chars.h"
#include "oat_file.h"
#include "runtime.h"
#include "scoped_thread_state_change-inl.h"
namespace art {
namespace {
// Returns whether the extensionless basename of `location` is equal to name.
// E.g. check_name("/foo/bar/baz.odex", "baz") == true,
// check_name("/foo/bar/baz.odex", "bar") == false
static bool check_name(const std::string& location, const std::string& name) {
std::string loc_name = location;
size_t idx = loc_name.rfind('/');
if (idx != std::string::npos) {
loc_name = loc_name.substr(idx + 1);
}
idx = loc_name.rfind('.');
if (idx != std::string::npos) {
loc_name = loc_name.substr(0, idx);
}
return loc_name == name;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkAppImageLoaded(JNIEnv* env,
jclass,
jstring jimage_name) {
ScopedUtfChars image_name(env, jimage_name);
ScopedObjectAccess soa(Thread::Current());
for (auto* space : Runtime::Current()->GetHeap()->GetContinuousSpaces()) {
if (space->IsImageSpace()) {
auto* image_space = space->AsImageSpace();
const auto& image_header = image_space->GetImageHeader();
// Check that this is an app image associated with the dex file named
// `jname` by verifying the extensionless basename of the odex file
// location is equal to `jname`.
if (image_header.IsAppImage() &&
check_name(image_space->GetOatFile()->GetLocation(), image_name.c_str())) {
return JNI_TRUE;
}
}
}
return JNI_FALSE;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkAppImageContains(JNIEnv*, jclass, jclass c) {
ScopedObjectAccess soa(Thread::Current());
ObjPtr<mirror::Class> klass_ptr = soa.Decode<mirror::Class>(c);
for (auto* space : Runtime::Current()->GetHeap()->GetContinuousSpaces()) {
if (space->IsImageSpace()) {
auto* image_space = space->AsImageSpace();
const auto& image_header = image_space->GetImageHeader();
if (image_header.IsAppImage()) {
if (image_space->HasAddress(klass_ptr.Ptr())) {
return JNI_TRUE;
}
}
}
}
return JNI_FALSE;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkInitialized(JNIEnv*, jclass, jclass c) {
ScopedObjectAccess soa(Thread::Current());
ObjPtr<mirror::Class> klass_ptr = soa.Decode<mirror::Class>(c);
return klass_ptr->IsInitialized();
}
} // namespace
} // namespace art