| /* |
| * Copyright (C) 2011 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 <dlfcn.h> |
| |
| #include <cutils/log.h> |
| |
| #include "jni.h" |
| #include "DdmConnection.h" |
| |
| namespace android { |
| |
| void DdmConnection_start(const char* name) { |
| ALOGI("DdmConnection_start"); |
| DdmConnection::start(name); |
| } |
| |
| void DdmConnection::start(const char* name) { |
| JavaVM* vm; |
| JNIEnv* env; |
| |
| // start a VM |
| JavaVMInitArgs args; |
| JavaVMOption opt; |
| |
| opt.optionString = |
| "-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"; |
| |
| args.version = JNI_VERSION_1_4; |
| args.options = &opt; |
| args.nOptions = 1; |
| args.ignoreUnrecognized = JNI_FALSE; |
| |
| |
| // TODO: Should this just link against libnativehelper and use its |
| // JNI_CreateJavaVM wrapper that essential does this dlopen/dlsym |
| // work based on the current system default runtime? |
| void* libart_dso = dlopen("libart.so", RTLD_NOW); |
| ALOGE_IF(!libart_dso, "DdmConnection: %s", dlerror()); |
| |
| void* libandroid_runtime_dso = dlopen("libandroid_runtime.so", RTLD_NOW); |
| ALOGE_IF(!libandroid_runtime_dso, "DdmConnection: %s", dlerror()); |
| |
| if (!libart_dso || !libandroid_runtime_dso) { |
| goto error; |
| } |
| |
| jint (*JNI_CreateJavaVM)(JavaVM** p_vm, JNIEnv** p_env, void* vm_args); |
| JNI_CreateJavaVM = reinterpret_cast<decltype(JNI_CreateJavaVM)>( |
| dlsym(libart_dso, "JNI_CreateJavaVM")); |
| ALOGE_IF(!JNI_CreateJavaVM, "DdmConnection: %s", dlerror()); |
| |
| jint (*registerNatives)(JNIEnv* env, jclass clazz); |
| registerNatives = reinterpret_cast<decltype(registerNatives)>( |
| dlsym(libandroid_runtime_dso, |
| "Java_com_android_internal_util_WithFramework_registerNatives")); |
| ALOGE_IF(!registerNatives, "DdmConnection: %s", dlerror()); |
| |
| if (!JNI_CreateJavaVM || !registerNatives) { |
| goto error; |
| } |
| |
| if (JNI_CreateJavaVM(&vm, &env, &args) == 0) { |
| jclass startClass; |
| jmethodID startMeth; |
| |
| // register native code |
| if (registerNatives(env, 0) == 0) { |
| // set our name by calling DdmHandleAppName.setAppName() |
| startClass = env->FindClass("android/ddm/DdmHandleAppName"); |
| if (startClass) { |
| startMeth = env->GetStaticMethodID(startClass, |
| "setAppName", "(Ljava/lang/String;I)V"); |
| if (startMeth) { |
| jstring str = env->NewStringUTF(name); |
| env->CallStaticVoidMethod(startClass, startMeth, str, getuid()); |
| env->DeleteLocalRef(str); |
| } |
| } |
| |
| // initialize DDMS communication by calling |
| // DdmRegister.registerHandlers() |
| startClass = env->FindClass("android/ddm/DdmRegister"); |
| if (startClass) { |
| startMeth = env->GetStaticMethodID(startClass, |
| "registerHandlers", "()V"); |
| if (startMeth) { |
| env->CallStaticVoidMethod(startClass, startMeth); |
| } |
| } |
| } |
| } |
| return; |
| |
| error: |
| if (libandroid_runtime_dso) { |
| dlclose(libandroid_runtime_dso); |
| } |
| if (libart_dso) { |
| dlclose(libart_dso); |
| } |
| } |
| |
| }; // namespace android |