422 lines
17 KiB
C++
422 lines
17 KiB
C++
/*
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* Copyright (C) 2018 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 <android-base/logging.h>
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#include <android-base/properties.h>
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#include <android/graphics/jni_runtime.h>
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#include <nativehelper/JNIHelp.h>
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#include <nativehelper/jni_macros.h>
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#include <unicode/putil.h>
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#include <unicode/udata.h>
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#include <clocale>
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#include <sstream>
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#include <unordered_map>
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#include <vector>
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#include "core_jni_helpers.h"
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#include "jni.h"
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#endif
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#include <iostream>
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using namespace std;
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/*
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* This is responsible for setting up the JNI environment for communication between
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* the Java and native parts of layoutlib, including registering native methods.
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* This is mostly achieved by copying the way it is done in the platform
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* (see AndroidRuntime.cpp).
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*/
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static JavaVM* javaVM;
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static jclass bridge;
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static jclass layoutLog;
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static jmethodID getLogId;
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static jmethodID logMethodId;
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extern int register_android_os_Binder(JNIEnv* env);
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extern int register_libcore_util_NativeAllocationRegistry_Delegate(JNIEnv* env);
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typedef void (*FreeFunction)(void*);
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static void NativeAllocationRegistry_Delegate_nativeApplyFreeFunction(JNIEnv*, jclass,
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jlong freeFunction,
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jlong ptr) {
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void* nativePtr = reinterpret_cast<void*>(static_cast<uintptr_t>(ptr));
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FreeFunction nativeFreeFunction =
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reinterpret_cast<FreeFunction>(static_cast<uintptr_t>(freeFunction));
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nativeFreeFunction(nativePtr);
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}
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static JNINativeMethod gMethods[] = {
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NATIVE_METHOD(NativeAllocationRegistry_Delegate, nativeApplyFreeFunction, "(JJ)V"),
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};
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int register_libcore_util_NativeAllocationRegistry_Delegate(JNIEnv* env) {
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return jniRegisterNativeMethods(env, "libcore/util/NativeAllocationRegistry_Delegate", gMethods,
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NELEM(gMethods));
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}
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namespace android {
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extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
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extern int register_android_content_AssetManager(JNIEnv* env);
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extern int register_android_content_StringBlock(JNIEnv* env);
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extern int register_android_content_XmlBlock(JNIEnv* env);
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extern int register_android_content_res_ApkAssets(JNIEnv* env);
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extern int register_android_database_CursorWindow(JNIEnv* env);
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extern int register_android_database_SQLiteConnection(JNIEnv* env);
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extern int register_android_database_SQLiteGlobal(JNIEnv* env);
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extern int register_android_database_SQLiteDebug(JNIEnv* env);
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extern int register_android_os_FileObserver(JNIEnv* env);
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extern int register_android_os_MessageQueue(JNIEnv* env);
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extern int register_android_os_Parcel(JNIEnv* env);
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extern int register_android_os_SystemClock(JNIEnv* env);
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extern int register_android_os_SystemProperties(JNIEnv* env);
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extern int register_android_os_Trace(JNIEnv* env);
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extern int register_android_text_AndroidCharacter(JNIEnv* env);
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extern int register_android_util_EventLog(JNIEnv* env);
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extern int register_android_util_Log(JNIEnv* env);
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extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
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extern int register_android_view_KeyCharacterMap(JNIEnv* env);
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extern int register_android_view_KeyEvent(JNIEnv* env);
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extern int register_android_view_MotionEvent(JNIEnv* env);
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extern int register_android_view_ThreadedRenderer(JNIEnv* env);
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extern int register_android_view_VelocityTracker(JNIEnv* env);
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extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
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#define REG_JNI(name) { name }
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struct RegJNIRec {
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int (*mProc)(JNIEnv*);
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};
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// Map of all possible class names to register to their corresponding JNI registration function pointer
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// The actual list of registered classes will be determined at runtime via the 'native_classes' System property
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static const std::unordered_map<std::string, RegJNIRec> gRegJNIMap = {
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{"android.animation.PropertyValuesHolder",
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REG_JNI(register_android_animation_PropertyValuesHolder)},
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#ifdef __linux__
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{"android.content.res.ApkAssets", REG_JNI(register_android_content_res_ApkAssets)},
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{"android.content.res.AssetManager", REG_JNI(register_android_content_AssetManager)},
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{"android.database.CursorWindow", REG_JNI(register_android_database_CursorWindow)},
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{"android.database.sqlite.SQLiteConnection",
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REG_JNI(register_android_database_SQLiteConnection)},
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{"android.database.sqlite.SQLiteGlobal", REG_JNI(register_android_database_SQLiteGlobal)},
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{"android.database.sqlite.SQLiteDebug", REG_JNI(register_android_database_SQLiteDebug)},
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#endif
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{"android.content.res.StringBlock", REG_JNI(register_android_content_StringBlock)},
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{"android.content.res.XmlBlock", REG_JNI(register_android_content_XmlBlock)},
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#ifdef __linux__
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{"android.os.Binder", REG_JNI(register_android_os_Binder)},
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{"android.os.FileObserver", REG_JNI(register_android_os_FileObserver)},
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{"android.os.MessageQueue", REG_JNI(register_android_os_MessageQueue)},
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{"android.os.Parcel", REG_JNI(register_android_os_Parcel)},
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#endif
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{"android.os.SystemClock", REG_JNI(register_android_os_SystemClock)},
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{"android.os.SystemProperties", REG_JNI(register_android_os_SystemProperties)},
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{"android.os.Trace", REG_JNI(register_android_os_Trace)},
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{"android.text.AndroidCharacter", REG_JNI(register_android_text_AndroidCharacter)},
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{"android.util.EventLog", REG_JNI(register_android_util_EventLog)},
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{"android.util.Log", REG_JNI(register_android_util_Log)},
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{"android.util.jar.StrictJarFile", REG_JNI(register_android_util_jar_StrictJarFile)},
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{"android.view.KeyCharacterMap", REG_JNI(register_android_view_KeyCharacterMap)},
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{"android.view.KeyEvent", REG_JNI(register_android_view_KeyEvent)},
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{"android.view.MotionEvent", REG_JNI(register_android_view_MotionEvent)},
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{"android.view.VelocityTracker", REG_JNI(register_android_view_VelocityTracker)},
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{"com.android.internal.util.VirtualRefBasePtr",
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REG_JNI(register_com_android_internal_util_VirtualRefBasePtr)},
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{"libcore.util.NativeAllocationRegistry_Delegate",
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REG_JNI(register_libcore_util_NativeAllocationRegistry_Delegate)},
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};
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static int register_jni_procs(const std::unordered_map<std::string, RegJNIRec>& jniRegMap,
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const vector<string>& classesToRegister, JNIEnv* env) {
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for (const string& className : classesToRegister) {
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if (jniRegMap.at(className).mProc(env) < 0) {
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return -1;
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}
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}
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if (register_android_graphics_classes(env) < 0) {
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return -1;
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}
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return 0;
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}
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int AndroidRuntime::registerNativeMethods(JNIEnv* env,
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const char* className, const JNINativeMethod* gMethods, int numMethods) {
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return jniRegisterNativeMethods(env, className, gMethods, numMethods);
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}
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JNIEnv* AndroidRuntime::getJNIEnv() {
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JNIEnv* env;
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if (javaVM->GetEnv((void**) &env, JNI_VERSION_1_6) != JNI_OK)
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return nullptr;
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return env;
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}
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JavaVM* AndroidRuntime::getJavaVM() {
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return javaVM;
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}
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static vector<string> parseCsv(const string& csvString) {
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vector<string> result;
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istringstream stream(csvString);
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string segment;
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while(getline(stream, segment, ','))
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{
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result.push_back(segment);
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}
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return result;
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}
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static vector<string> parseCsv(JNIEnv* env, jstring csvJString) {
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const char* charArray = env->GetStringUTFChars(csvJString, 0);
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string csvString(charArray);
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vector<string> result = parseCsv(csvString);
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env->ReleaseStringUTFChars(csvJString, charArray);
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return result;
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}
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void LayoutlibLogger(base::LogId, base::LogSeverity severity, const char* tag, const char* file,
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unsigned int line, const char* message) {
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JNIEnv* env = AndroidRuntime::getJNIEnv();
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jint logPrio = severity;
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jstring tagString = env->NewStringUTF(tag);
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jstring messageString = env->NewStringUTF(message);
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jobject bridgeLog = env->CallStaticObjectMethod(bridge, getLogId);
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env->CallVoidMethod(bridgeLog, logMethodId, logPrio, tagString, messageString);
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env->DeleteLocalRef(tagString);
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env->DeleteLocalRef(messageString);
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env->DeleteLocalRef(bridgeLog);
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}
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void LayoutlibAborter(const char* abort_message) {
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// Layoutlib should not call abort() as it would terminate Studio.
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// Throw an exception back to Java instead.
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JNIEnv* env = AndroidRuntime::getJNIEnv();
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jniThrowRuntimeException(env, "The Android framework has encountered a fatal error");
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}
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// This method has been copied/adapted from system/core/init/property_service.cpp
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// If the ro.product.cpu.abilist* properties have not been explicitly
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// set, derive them from ro.system.product.cpu.abilist* properties.
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static void property_initialize_ro_cpu_abilist() {
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const std::string EMPTY = "";
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const char* kAbilistProp = "ro.product.cpu.abilist";
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const char* kAbilist32Prop = "ro.product.cpu.abilist32";
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const char* kAbilist64Prop = "ro.product.cpu.abilist64";
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// If the properties are defined explicitly, just use them.
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if (base::GetProperty(kAbilistProp, EMPTY) != EMPTY) {
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return;
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}
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std::string abilist32_prop_val;
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std::string abilist64_prop_val;
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const auto abilist32_prop = "ro.system.product.cpu.abilist32";
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const auto abilist64_prop = "ro.system.product.cpu.abilist64";
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abilist32_prop_val = base::GetProperty(abilist32_prop, EMPTY);
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abilist64_prop_val = base::GetProperty(abilist64_prop, EMPTY);
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// Merge ABI lists for ro.product.cpu.abilist
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auto abilist_prop_val = abilist64_prop_val;
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if (abilist32_prop_val != EMPTY) {
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if (abilist_prop_val != EMPTY) {
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abilist_prop_val += ",";
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}
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abilist_prop_val += abilist32_prop_val;
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}
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// Set these properties
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const std::pair<const char*, const std::string&> set_prop_list[] = {
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{kAbilistProp, abilist_prop_val},
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{kAbilist32Prop, abilist32_prop_val},
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{kAbilist64Prop, abilist64_prop_val},
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};
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for (const auto& [prop, prop_val] : set_prop_list) {
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base::SetProperty(prop, prop_val);
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}
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}
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static void* mmapFile(const char* dataFilePath) {
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#ifdef _WIN32
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// Windows needs file path in wide chars to handle unicode file paths
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int size = MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, NULL, 0);
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std::vector<wchar_t> wideDataFilePath(size);
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MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, wideDataFilePath.data(), size);
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HANDLE file =
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CreateFileW(wideDataFilePath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, nullptr);
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if ((HANDLE)INVALID_HANDLE_VALUE == file) {
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return nullptr;
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}
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struct CloseHandleWrapper {
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void operator()(HANDLE h) { CloseHandle(h); }
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};
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std::unique_ptr<void, CloseHandleWrapper> mmapHandle(
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CreateFileMapping(file, nullptr, PAGE_READONLY, 0, 0, nullptr));
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if (!mmapHandle) {
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return nullptr;
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}
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return MapViewOfFile(mmapHandle.get(), FILE_MAP_READ, 0, 0, 0);
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#else
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int fd = open(dataFilePath, O_RDONLY);
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if (fd == -1) {
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return nullptr;
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}
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struct stat sb;
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if (fstat(fd, &sb) == -1) {
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close(fd);
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return nullptr;
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}
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void* addr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (addr == MAP_FAILED) {
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close(fd);
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return nullptr;
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}
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close(fd);
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return addr;
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#endif
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}
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static bool init_icu(const char* dataPath) {
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void* addr = mmapFile(dataPath);
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UErrorCode err = U_ZERO_ERROR;
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udata_setCommonData(addr, &err);
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if (err != U_ZERO_ERROR) {
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return false;
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}
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return true;
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}
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} // namespace android
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using namespace android;
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JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void*) {
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javaVM = vm;
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JNIEnv* env = nullptr;
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if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
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return JNI_ERR;
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}
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init_android_graphics();
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// Configuration is stored as java System properties.
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// Get a reference to System.getProperty
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jclass system = FindClassOrDie(env, "java/lang/System");
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jmethodID getPropertyMethod = GetStaticMethodIDOrDie(env, system, "getProperty",
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"(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
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// Get the names of classes that need to register their native methods
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auto nativesClassesJString =
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(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
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env->NewStringUTF("core_native_classes"),
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env->NewStringUTF(""));
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vector<string> classesToRegister = parseCsv(env, nativesClassesJString);
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jstring registerProperty =
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(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
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env->NewStringUTF(
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"register_properties_during_load"),
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env->NewStringUTF(""));
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const char* registerPropertyString = env->GetStringUTFChars(registerProperty, 0);
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if (strcmp(registerPropertyString, "true") == 0) {
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// Set the system properties first as they could be used in the static initialization of
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// other classes
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if (register_android_os_SystemProperties(env) < 0) {
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return JNI_ERR;
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}
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classesToRegister.erase(find(classesToRegister.begin(), classesToRegister.end(),
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"android.os.SystemProperties"));
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bridge = FindClassOrDie(env, "com/android/layoutlib/bridge/Bridge");
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bridge = MakeGlobalRefOrDie(env, bridge);
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jmethodID setSystemPropertiesMethod =
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GetStaticMethodIDOrDie(env, bridge, "setSystemProperties", "()V");
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env->CallStaticVoidMethod(bridge, setSystemPropertiesMethod);
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property_initialize_ro_cpu_abilist();
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}
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env->ReleaseStringUTFChars(registerProperty, registerPropertyString);
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if (register_jni_procs(gRegJNIMap, classesToRegister, env) < 0) {
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return JNI_ERR;
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}
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// Set the location of ICU data
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auto stringPath = (jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
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env->NewStringUTF("icu.data.path"),
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env->NewStringUTF(""));
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const char* path = env->GetStringUTFChars(stringPath, 0);
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bool icuInitialized = init_icu(path);
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env->ReleaseStringUTFChars(stringPath, path);
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if (!icuInitialized) {
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return JNI_ERR;
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}
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jstring useJniProperty =
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(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
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env->NewStringUTF("use_bridge_for_logging"),
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env->NewStringUTF(""));
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const char* useJniString = env->GetStringUTFChars(useJniProperty, 0);
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if (strcmp(useJniString, "true") == 0) {
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layoutLog = FindClassOrDie(env, "com/android/ide/common/rendering/api/ILayoutLog");
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layoutLog = MakeGlobalRefOrDie(env, layoutLog);
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logMethodId = GetMethodIDOrDie(env, layoutLog, "logAndroidFramework",
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"(ILjava/lang/String;Ljava/lang/String;)V");
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if (bridge == nullptr) {
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bridge = FindClassOrDie(env, "com/android/layoutlib/bridge/Bridge");
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bridge = MakeGlobalRefOrDie(env, bridge);
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}
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getLogId = GetStaticMethodIDOrDie(env, bridge, "getLog",
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"()Lcom/android/ide/common/rendering/api/ILayoutLog;");
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android::base::SetLogger(LayoutlibLogger);
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android::base::SetAborter(LayoutlibAborter);
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} else {
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// initialize logging, so ANDROD_LOG_TAGS env variable is respected
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android::base::InitLogging(nullptr, android::base::StderrLogger);
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}
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env->ReleaseStringUTFChars(useJniProperty, useJniString);
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// Use English locale for number format to ensure correct parsing of floats when using strtof
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setlocale(LC_NUMERIC, "en_US.UTF-8");
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return JNI_VERSION_1_6;
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}
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JNIEXPORT void JNI_OnUnload(JavaVM* vm, void*) {
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JNIEnv* env = nullptr;
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vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
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env->DeleteGlobalRef(bridge);
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env->DeleteGlobalRef(layoutLog);
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}
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