/* * 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 #include #include #include #include #include #include #include #include #include #include /* list of native processes to include in the native dumps */ // This matches the /proc/pid/exe link instead of /proc/pid/cmdline. static const char* native_processes_to_dump[] = { "/system/bin/audioserver", "/system/bin/cameraserver", "/system/bin/drmserver", "/system/bin/mediadrmserver", "/system/bin/mediaextractor", // media.extractor "/system/bin/mediametrics", // media.metrics "/system/bin/mediaserver", "/system/bin/mediatranscoding", // media.transcoding "/system/bin/netd", "/system/bin/sdcard", "/apex/com.android.os.statsd/bin/statsd", "/system/bin/surfaceflinger", "/system/bin/vehicle_network_service", "/vendor/bin/hw/android.hardware.media.omx@1.0-service", // media.codec "/apex/com.android.media.swcodec/bin/mediaswcodec", // media.swcodec NULL, }; // Native processes to dump on debuggable builds. static const char* debuggable_native_processes_to_dump[] = { "/system/bin/keystore2", "/system/bin/vold", NULL, }; /* list of hidl hal interface to dump containing process during native dumps */ static const char* hidl_hal_interfaces_to_dump[] { "android.hardware.audio@4.0::IDevicesFactory", "android.hardware.audio@5.0::IDevicesFactory", "android.hardware.audio@6.0::IDevicesFactory", "android.hardware.audio@7.0::IDevicesFactory", "android.hardware.automotive.audiocontrol@1.0::IAudioControl", "android.hardware.automotive.audiocontrol@2.0::IAudioControl", "android.hardware.automotive.can@1.0::ICanBus", "android.hardware.automotive.can@1.0::ICanController", "android.hardware.automotive.evs@1.0::IEvsCamera", "android.hardware.automotive.sv@1.0::ISurroundViewService", "android.hardware.automotive.vehicle@2.0::IVehicle", "android.hardware.biometrics.face@1.0::IBiometricsFace", "android.hardware.biometrics.fingerprint@2.1::IBiometricsFingerprint", "android.hardware.bluetooth@1.0::IBluetoothHci", "android.hardware.camera.provider@2.4::ICameraProvider", "android.hardware.drm@1.0::IDrmFactory", "android.hardware.graphics.allocator@2.0::IAllocator", "android.hardware.graphics.composer@2.1::IComposer", "android.hardware.health@2.0::IHealth", "android.hardware.media.c2@1.0::IComponentStore", "android.hardware.media.omx@1.0::IOmx", "android.hardware.media.omx@1.0::IOmxStore", "android.hardware.neuralnetworks@1.0::IDevice", "android.hardware.power@1.3::IPower", "android.hardware.power.stats@1.0::IPowerStats", "android.hardware.sensors@1.0::ISensors", "android.hardware.thermal@2.0::IThermal", "android.hardware.vr@1.0::IVr", NULL, }; /* list of hal interface to dump containing process during native dumps */ static const std::vector aidl_interfaces_to_dump { "android.hardware.audio.core.IConfig", "android.hardware.audio.core.IModule", "android.hardware.audio.effect.IFactory", "android.hardware.automotive.audiocontrol.IAudioControl", "android.hardware.automotive.can.ICanController", "android.hardware.automotive.evs.IEvsEnumerator", "android.hardware.automotive.ivn.IIvnAndroidDevice", "android.hardware.automotive.occupant_awareness.IOccupantAwareness", "android.hardware.automotive.remoteaccess.IRemoteAccess", "android.hardware.automotive.vehicle.IVehicle", "android.hardware.biometrics.face.IBiometricsFace", "android.hardware.biometrics.fingerprint.IBiometricsFingerprint", "android.hardware.camera.provider.ICameraProvider", "android.hardware.drm.IDrmFactory", "android.hardware.graphics.allocator.IAllocator", "android.hardware.graphics.composer3.IComposer", "android.hardware.health.IHealth", "android.hardware.input.processor.IInputProcessor", "android.hardware.neuralnetworks.IDevice", "android.hardware.power.IPower", "android.hardware.power.stats.IPowerStats", "android.hardware.sensors.ISensors", }; /* list of extra hal interfaces to dump containing process during native dumps */ // This is filled when dumpstate is called. static std::set extra_hal_interfaces_to_dump; static void read_extra_hals_to_dump_from_property() { // extra hals to dump are already filled if (!extra_hal_interfaces_to_dump.empty()) { return; } std::string value = android::base::GetProperty("ro.dump.hals.extra", ""); std::vector tokens = android::base::Split(value, ","); for (const auto &token : tokens) { std::string trimmed_token = android::base::Trim(token); if (trimmed_token.length() == 0) { continue; } extra_hal_interfaces_to_dump.insert(std::move(trimmed_token)); } } // check if interface is included in either default hal list or extra hal list bool should_dump_hal_interface(const std::string& interface) { for (const char** i = hidl_hal_interfaces_to_dump; *i; i++) { if (interface == *i) { return true; } } return extra_hal_interfaces_to_dump.find(interface) != extra_hal_interfaces_to_dump.end(); } bool should_dump_native_traces(const char* path) { for (const char** p = native_processes_to_dump; *p; p++) { if (!strcmp(*p, path)) { return true; } } if (android::base::GetBoolProperty("ro.debuggable", false)) { for (const char** p = debuggable_native_processes_to_dump; *p; p++) { if (!strcmp(*p, path)) { return true; } } } return false; } static void get_interesting_aidl_pids(std::set &pids) { using ServiceDebugInfo = android::IServiceManager::ServiceDebugInfo; auto sm = android::defaultServiceManager(); std::vector serviceDebugInfos = sm->getServiceDebugInfo(); for (const auto & serviceDebugInfo : serviceDebugInfos) { for (const auto &aidl_prefix : aidl_interfaces_to_dump) { // Check for prefix match with aidl interface to dump if (serviceDebugInfo.name.rfind(aidl_prefix, 0) == 0) { pids.insert(serviceDebugInfo.pid); } } } } static void get_interesting_hidl_pids(std::set &pids) { using android::hidl::manager::V1_0::IServiceManager; using android::sp; using android::hardware::Return; sp manager = IServiceManager::getService(); read_extra_hals_to_dump_from_property(); Return ret = manager->debugDump([&](auto& hals) { for (const auto &info : hals) { if (info.pid == static_cast(IServiceManager::PidConstant::NO_PID)) { continue; } if (should_dump_hal_interface(info.interfaceName)) { pids.insert(info.pid); } } }); if (!ret.isOk()) { ALOGE("Could not get list of HAL PIDs: %s\n", ret.description().c_str()); } return; } std::set get_interesting_pids() { std::set interesting_pids; get_interesting_hidl_pids(interesting_pids); get_interesting_aidl_pids(interesting_pids); return interesting_pids; } bool IsZygote(int pid) { std::string cmdline; if (!android::base::ReadFileToString(android::base::StringPrintf("/proc/%d/cmdline", pid), &cmdline)) { return true; } // cmdline has embedded nulls; only consider argv[0]. cmdline = std::string(cmdline.c_str()); return cmdline == "zygote" || cmdline == "zygote64" || cmdline == "usap32" || cmdline == "usap64" || cmdline == "webview_zygote"; } bool IsCached(int pid) { std::string oom_score_adj; if (!android::base::ReadFileToString(android::base::StringPrintf("/proc/%d/oom_score_adj", pid), &oom_score_adj)) { return false; } int32_t oom_score_adj_value; if (!android::base::ParseInt(android::base::Trim(oom_score_adj), &oom_score_adj_value)) { return false; } // An OOM score greater than 900 indicates a cached process. return oom_score_adj_value >= 900; }