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