102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
/*
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* Copyright 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <pthread.h>
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#include <cstdio>
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#include <iostream>
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#include <vector>
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#include "jni.h"
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#include "gc/heap.h"
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#include "gc/space/image_space.h"
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#include "gc/space/space-inl.h"
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#include "image.h"
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#include "mirror/class.h"
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#include "nativehelper/scoped_utf_chars.h"
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#include "oat_file.h"
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#include "runtime.h"
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#include "scoped_thread_state_change-inl.h"
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namespace art {
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namespace {
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// Returns whether the extensionless basename of `location` is equal to name.
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// E.g. check_name("/foo/bar/baz.odex", "baz") == true,
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// check_name("/foo/bar/baz.odex", "bar") == false
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static bool check_name(const std::string& location, const std::string& name) {
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std::string loc_name = location;
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size_t idx = loc_name.rfind('/');
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if (idx != std::string::npos) {
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loc_name = loc_name.substr(idx + 1);
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}
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idx = loc_name.rfind('.');
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if (idx != std::string::npos) {
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loc_name = loc_name.substr(0, idx);
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}
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return loc_name == name;
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}
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extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkAppImageLoaded(JNIEnv* env,
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jclass,
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jstring jimage_name) {
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ScopedUtfChars image_name(env, jimage_name);
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ScopedObjectAccess soa(Thread::Current());
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for (auto* space : Runtime::Current()->GetHeap()->GetContinuousSpaces()) {
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if (space->IsImageSpace()) {
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auto* image_space = space->AsImageSpace();
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const auto& image_header = image_space->GetImageHeader();
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// Check that this is an app image associated with the dex file named
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// `jname` by verifying the extensionless basename of the odex file
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// location is equal to `jname`.
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if (image_header.IsAppImage() &&
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check_name(image_space->GetOatFile()->GetLocation(), image_name.c_str())) {
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return JNI_TRUE;
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}
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}
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}
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return JNI_FALSE;
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}
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extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkAppImageContains(JNIEnv*, jclass, jclass c) {
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ScopedObjectAccess soa(Thread::Current());
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ObjPtr<mirror::Class> klass_ptr = soa.Decode<mirror::Class>(c);
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for (auto* space : Runtime::Current()->GetHeap()->GetContinuousSpaces()) {
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if (space->IsImageSpace()) {
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auto* image_space = space->AsImageSpace();
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const auto& image_header = image_space->GetImageHeader();
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if (image_header.IsAppImage()) {
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if (image_space->HasAddress(klass_ptr.Ptr())) {
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return JNI_TRUE;
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}
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}
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}
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}
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return JNI_FALSE;
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}
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extern "C" JNIEXPORT jboolean JNICALL Java_Main_checkInitialized(JNIEnv*, jclass, jclass c) {
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ScopedObjectAccess soa(Thread::Current());
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ObjPtr<mirror::Class> klass_ptr = soa.Decode<mirror::Class>(c);
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return klass_ptr->IsInitialized();
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}
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} // namespace
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} // namespace art
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