blob: 93ba23bfdf840600c071b47356ef6f5675b7e1bc [file] [log] [blame]
/*
* Copyright (C) 2018 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 <android-base/logging.h>
#include <android-base/properties.h>
#include <android/graphics/jni_runtime.h>
#include <nativehelper/JNIHelp.h>
#include <nativehelper/jni_macros.h>
#include <unicode/putil.h>
#include <unicode/udata.h>
#include <clocale>
#include <sstream>
#include <unordered_map>
#include <vector>
#include "core_jni_helpers.h"
#include "jni.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#endif
#include <iostream>
using namespace std;
/*
* This is responsible for setting up the JNI environment for communication between
* the Java and native parts of layoutlib, including registering native methods.
* This is mostly achieved by copying the way it is done in the platform
* (see AndroidRuntime.cpp).
*/
static JavaVM* javaVM;
static jclass bridge;
static jclass layoutLog;
static jmethodID getLogId;
static jmethodID logMethodId;
extern int register_android_os_Binder(JNIEnv* env);
extern int register_libcore_util_NativeAllocationRegistry_Delegate(JNIEnv* env);
typedef void (*FreeFunction)(void*);
static void NativeAllocationRegistry_Delegate_nativeApplyFreeFunction(JNIEnv*, jclass,
jlong freeFunction,
jlong ptr) {
void* nativePtr = reinterpret_cast<void*>(static_cast<uintptr_t>(ptr));
FreeFunction nativeFreeFunction =
reinterpret_cast<FreeFunction>(static_cast<uintptr_t>(freeFunction));
nativeFreeFunction(nativePtr);
}
static JNINativeMethod gMethods[] = {
NATIVE_METHOD(NativeAllocationRegistry_Delegate, nativeApplyFreeFunction, "(JJ)V"),
};
int register_libcore_util_NativeAllocationRegistry_Delegate(JNIEnv* env) {
return jniRegisterNativeMethods(env, "libcore/util/NativeAllocationRegistry_Delegate", gMethods,
NELEM(gMethods));
}
namespace android {
extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
extern int register_android_content_AssetManager(JNIEnv* env);
extern int register_android_content_StringBlock(JNIEnv* env);
extern int register_android_content_XmlBlock(JNIEnv* env);
extern int register_android_content_res_ApkAssets(JNIEnv* env);
extern int register_android_database_CursorWindow(JNIEnv* env);
extern int register_android_database_SQLiteConnection(JNIEnv* env);
extern int register_android_database_SQLiteGlobal(JNIEnv* env);
extern int register_android_database_SQLiteDebug(JNIEnv* env);
extern int register_android_os_FileObserver(JNIEnv* env);
extern int register_android_os_MessageQueue(JNIEnv* env);
extern int register_android_os_Parcel(JNIEnv* env);
extern int register_android_os_SystemClock(JNIEnv* env);
extern int register_android_os_SystemProperties(JNIEnv* env);
extern int register_android_os_Trace(JNIEnv* env);
extern int register_android_text_AndroidCharacter(JNIEnv* env);
extern int register_android_util_EventLog(JNIEnv* env);
extern int register_android_util_Log(JNIEnv* env);
extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
extern int register_android_view_KeyCharacterMap(JNIEnv* env);
extern int register_android_view_KeyEvent(JNIEnv* env);
extern int register_android_view_MotionEvent(JNIEnv* env);
extern int register_android_view_ThreadedRenderer(JNIEnv* env);
extern int register_android_view_VelocityTracker(JNIEnv* env);
extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
#define REG_JNI(name) { name }
struct RegJNIRec {
int (*mProc)(JNIEnv*);
};
// Map of all possible class names to register to their corresponding JNI registration function pointer
// The actual list of registered classes will be determined at runtime via the 'native_classes' System property
static const std::unordered_map<std::string, RegJNIRec> gRegJNIMap = {
{"android.animation.PropertyValuesHolder",
REG_JNI(register_android_animation_PropertyValuesHolder)},
#ifdef __linux__
{"android.content.res.ApkAssets", REG_JNI(register_android_content_res_ApkAssets)},
{"android.content.res.AssetManager", REG_JNI(register_android_content_AssetManager)},
{"android.database.CursorWindow", REG_JNI(register_android_database_CursorWindow)},
{"android.database.sqlite.SQLiteConnection",
REG_JNI(register_android_database_SQLiteConnection)},
{"android.database.sqlite.SQLiteGlobal", REG_JNI(register_android_database_SQLiteGlobal)},
{"android.database.sqlite.SQLiteDebug", REG_JNI(register_android_database_SQLiteDebug)},
#endif
{"android.content.res.StringBlock", REG_JNI(register_android_content_StringBlock)},
{"android.content.res.XmlBlock", REG_JNI(register_android_content_XmlBlock)},
#ifdef __linux__
{"android.os.Binder", REG_JNI(register_android_os_Binder)},
{"android.os.FileObserver", REG_JNI(register_android_os_FileObserver)},
{"android.os.MessageQueue", REG_JNI(register_android_os_MessageQueue)},
{"android.os.Parcel", REG_JNI(register_android_os_Parcel)},
#endif
{"android.os.SystemClock", REG_JNI(register_android_os_SystemClock)},
{"android.os.SystemProperties", REG_JNI(register_android_os_SystemProperties)},
{"android.os.Trace", REG_JNI(register_android_os_Trace)},
{"android.text.AndroidCharacter", REG_JNI(register_android_text_AndroidCharacter)},
{"android.util.EventLog", REG_JNI(register_android_util_EventLog)},
{"android.util.Log", REG_JNI(register_android_util_Log)},
{"android.util.jar.StrictJarFile", REG_JNI(register_android_util_jar_StrictJarFile)},
{"android.view.KeyCharacterMap", REG_JNI(register_android_view_KeyCharacterMap)},
{"android.view.KeyEvent", REG_JNI(register_android_view_KeyEvent)},
{"android.view.MotionEvent", REG_JNI(register_android_view_MotionEvent)},
{"android.view.VelocityTracker", REG_JNI(register_android_view_VelocityTracker)},
{"com.android.internal.util.VirtualRefBasePtr",
REG_JNI(register_com_android_internal_util_VirtualRefBasePtr)},
{"libcore.util.NativeAllocationRegistry_Delegate",
REG_JNI(register_libcore_util_NativeAllocationRegistry_Delegate)},
};
static int register_jni_procs(const std::unordered_map<std::string, RegJNIRec>& jniRegMap,
const vector<string>& classesToRegister, JNIEnv* env) {
for (const string& className : classesToRegister) {
if (jniRegMap.at(className).mProc(env) < 0) {
return -1;
}
}
if (register_android_graphics_classes(env) < 0) {
return -1;
}
return 0;
}
int AndroidRuntime::registerNativeMethods(JNIEnv* env,
const char* className, const JNINativeMethod* gMethods, int numMethods) {
return jniRegisterNativeMethods(env, className, gMethods, numMethods);
}
JNIEnv* AndroidRuntime::getJNIEnv() {
JNIEnv* env;
if (javaVM->GetEnv((void**) &env, JNI_VERSION_1_6) != JNI_OK)
return nullptr;
return env;
}
JavaVM* AndroidRuntime::getJavaVM() {
return javaVM;
}
static vector<string> parseCsv(const string& csvString) {
vector<string> result;
istringstream stream(csvString);
string segment;
while(getline(stream, segment, ','))
{
result.push_back(segment);
}
return result;
}
static vector<string> parseCsv(JNIEnv* env, jstring csvJString) {
const char* charArray = env->GetStringUTFChars(csvJString, 0);
string csvString(charArray);
vector<string> result = parseCsv(csvString);
env->ReleaseStringUTFChars(csvJString, charArray);
return result;
}
void LayoutlibLogger(base::LogId, base::LogSeverity severity, const char* tag, const char* file,
unsigned int line, const char* message) {
JNIEnv* env = AndroidRuntime::getJNIEnv();
jint logPrio = severity;
jstring tagString = env->NewStringUTF(tag);
jstring messageString = env->NewStringUTF(message);
jobject bridgeLog = env->CallStaticObjectMethod(bridge, getLogId);
env->CallVoidMethod(bridgeLog, logMethodId, logPrio, tagString, messageString);
env->DeleteLocalRef(tagString);
env->DeleteLocalRef(messageString);
env->DeleteLocalRef(bridgeLog);
}
void LayoutlibAborter(const char* abort_message) {
// Layoutlib should not call abort() as it would terminate Studio.
// Throw an exception back to Java instead.
JNIEnv* env = AndroidRuntime::getJNIEnv();
jniThrowRuntimeException(env, "The Android framework has encountered a fatal error");
}
// This method has been copied/adapted from system/core/init/property_service.cpp
// If the ro.product.cpu.abilist* properties have not been explicitly
// set, derive them from ro.system.product.cpu.abilist* properties.
static void property_initialize_ro_cpu_abilist() {
const std::string EMPTY = "";
const char* kAbilistProp = "ro.product.cpu.abilist";
const char* kAbilist32Prop = "ro.product.cpu.abilist32";
const char* kAbilist64Prop = "ro.product.cpu.abilist64";
// If the properties are defined explicitly, just use them.
if (base::GetProperty(kAbilistProp, EMPTY) != EMPTY) {
return;
}
std::string abilist32_prop_val;
std::string abilist64_prop_val;
const auto abilist32_prop = "ro.system.product.cpu.abilist32";
const auto abilist64_prop = "ro.system.product.cpu.abilist64";
abilist32_prop_val = base::GetProperty(abilist32_prop, EMPTY);
abilist64_prop_val = base::GetProperty(abilist64_prop, EMPTY);
// Merge ABI lists for ro.product.cpu.abilist
auto abilist_prop_val = abilist64_prop_val;
if (abilist32_prop_val != EMPTY) {
if (abilist_prop_val != EMPTY) {
abilist_prop_val += ",";
}
abilist_prop_val += abilist32_prop_val;
}
// Set these properties
const std::pair<const char*, const std::string&> set_prop_list[] = {
{kAbilistProp, abilist_prop_val},
{kAbilist32Prop, abilist32_prop_val},
{kAbilist64Prop, abilist64_prop_val},
};
for (const auto& [prop, prop_val] : set_prop_list) {
base::SetProperty(prop, prop_val);
}
}
static void* mmapFile(const char* dataFilePath) {
#ifdef _WIN32
// Windows needs file path in wide chars to handle unicode file paths
int size = MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, NULL, 0);
std::vector<wchar_t> wideDataFilePath(size);
MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, wideDataFilePath.data(), size);
HANDLE file =
CreateFileW(wideDataFilePath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, nullptr);
if ((HANDLE)INVALID_HANDLE_VALUE == file) {
return nullptr;
}
struct CloseHandleWrapper {
void operator()(HANDLE h) { CloseHandle(h); }
};
std::unique_ptr<void, CloseHandleWrapper> mmapHandle(
CreateFileMapping(file, nullptr, PAGE_READONLY, 0, 0, nullptr));
if (!mmapHandle) {
return nullptr;
}
return MapViewOfFile(mmapHandle.get(), FILE_MAP_READ, 0, 0, 0);
#else
int fd = open(dataFilePath, O_RDONLY);
if (fd == -1) {
return nullptr;
}
struct stat sb;
if (fstat(fd, &sb) == -1) {
close(fd);
return nullptr;
}
void* addr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (addr == MAP_FAILED) {
close(fd);
return nullptr;
}
close(fd);
return addr;
#endif
}
static bool init_icu(const char* dataPath) {
void* addr = mmapFile(dataPath);
UErrorCode err = U_ZERO_ERROR;
udata_setCommonData(addr, &err);
if (err != U_ZERO_ERROR) {
return false;
}
return true;
}
} // namespace android
using namespace android;
JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void*) {
javaVM = vm;
JNIEnv* env = nullptr;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
return JNI_ERR;
}
init_android_graphics();
// Configuration is stored as java System properties.
// Get a reference to System.getProperty
jclass system = FindClassOrDie(env, "java/lang/System");
jmethodID getPropertyMethod = GetStaticMethodIDOrDie(env, system, "getProperty",
"(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
// Get the names of classes that need to register their native methods
auto nativesClassesJString =
(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF("core_native_classes"),
env->NewStringUTF(""));
vector<string> classesToRegister = parseCsv(env, nativesClassesJString);
jstring registerProperty =
(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF(
"register_properties_during_load"),
env->NewStringUTF(""));
const char* registerPropertyString = env->GetStringUTFChars(registerProperty, 0);
if (strcmp(registerPropertyString, "true") == 0) {
// Set the system properties first as they could be used in the static initialization of
// other classes
if (register_android_os_SystemProperties(env) < 0) {
return JNI_ERR;
}
classesToRegister.erase(find(classesToRegister.begin(), classesToRegister.end(),
"android.os.SystemProperties"));
bridge = FindClassOrDie(env, "com/android/layoutlib/bridge/Bridge");
bridge = MakeGlobalRefOrDie(env, bridge);
jmethodID setSystemPropertiesMethod =
GetStaticMethodIDOrDie(env, bridge, "setSystemProperties", "()V");
env->CallStaticVoidMethod(bridge, setSystemPropertiesMethod);
property_initialize_ro_cpu_abilist();
}
env->ReleaseStringUTFChars(registerProperty, registerPropertyString);
if (register_jni_procs(gRegJNIMap, classesToRegister, env) < 0) {
return JNI_ERR;
}
// Set the location of ICU data
auto stringPath = (jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF("icu.data.path"),
env->NewStringUTF(""));
const char* path = env->GetStringUTFChars(stringPath, 0);
bool icuInitialized = init_icu(path);
env->ReleaseStringUTFChars(stringPath, path);
if (!icuInitialized) {
return JNI_ERR;
}
jstring useJniProperty =
(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF("use_bridge_for_logging"),
env->NewStringUTF(""));
const char* useJniString = env->GetStringUTFChars(useJniProperty, 0);
if (strcmp(useJniString, "true") == 0) {
layoutLog = FindClassOrDie(env, "com/android/ide/common/rendering/api/ILayoutLog");
layoutLog = MakeGlobalRefOrDie(env, layoutLog);
logMethodId = GetMethodIDOrDie(env, layoutLog, "logAndroidFramework",
"(ILjava/lang/String;Ljava/lang/String;)V");
if (bridge == nullptr) {
bridge = FindClassOrDie(env, "com/android/layoutlib/bridge/Bridge");
bridge = MakeGlobalRefOrDie(env, bridge);
}
getLogId = GetStaticMethodIDOrDie(env, bridge, "getLog",
"()Lcom/android/ide/common/rendering/api/ILayoutLog;");
android::base::SetLogger(LayoutlibLogger);
android::base::SetAborter(LayoutlibAborter);
} else {
// initialize logging, so ANDROD_LOG_TAGS env variable is respected
android::base::InitLogging(nullptr, android::base::StderrLogger);
}
env->ReleaseStringUTFChars(useJniProperty, useJniString);
// Use English locale for number format to ensure correct parsing of floats when using strtof
setlocale(LC_NUMERIC, "en_US.UTF-8");
return JNI_VERSION_1_6;
}
JNIEXPORT void JNI_OnUnload(JavaVM* vm, void*) {
JNIEnv* env = nullptr;
vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
env->DeleteGlobalRef(bridge);
env->DeleteGlobalRef(layoutLog);
}