Dumpstate: dump HAL native traces processes. (7951dcd1) · Commits · e / os / android_frameworks_native-old

cmds/dumpstate/Android.mk

+1 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@ COMMON_SRC_FILES := \
		utils.cpp
		COMMON_SHARED_LIBRARIES := \
		android.hardware.dumpstate@1.0 \
		android.hidl.manager@1.0 \
		libhidlbase \
		libbase \
		libbinder \

cmds/dumpstate/utils.cpp

+53 −1

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@
		#include <time.h>
		#include <unistd.h>

		#include <set>
		#include <string>
		#include <vector>

		@@ -45,6 +46,7 @@
		#include <android-base/properties.h>
		#include <android-base/stringprintf.h>
		#include <android-base/strings.h>
		#include <android/hidl/manager/1.0/IServiceManager.h>
		#include <cutils/properties.h>
		#include <cutils/sockets.h>
		#include <debuggerd/client.h>
		@@ -87,6 +89,16 @@ static const char* native_processes_to_dump[] = {
		NULL,
		};

		/* list of hal interface to dump containing process during native dumps */
		static const char* hal_interfaces_to_dump[] {
		"android.hardware.audio@2.0::IDevicesFactory",
		"android.hardware.bluetooth@1.0::IBluetoothHci",
		"android.hardware.camera.provider@2.4::ICameraProvider",
		"android.hardware.vr@1.0::IVr",
		"android.hardware.media.omx@1.0::IOmx",
		NULL,
		};

		// Reasonable value for max stats.
		static const int STATS_MAX_N_RUNS = 1000;
		static const long STATS_MAX_AVERAGE = 100000;
		@@ -792,6 +804,15 @@ void redirect_to_existing_file(FILE redirect, char path) {
		_redirect_to_file(redirect, path, O_APPEND);
		}

		static bool should_dump_hal_interface(const char* interface) {
		for (const char** i = hal_interfaces_to_dump; *i; i++) {
		if (!strcmp(*i, interface)) {
		return true;
		}
		}
		return false;
		}

		static bool should_dump_native_traces(const char* path) {
		for (const char** p = native_processes_to_dump; *p; p++) {
		if (!strcmp(*p, path)) {
		@@ -801,6 +822,35 @@ static bool should_dump_native_traces(const char* path) {
		return false;
		}

		std::set<int> get_interesting_hal_pids() {
		using android::hidl::manager::V1_0::IServiceManager;
		using android::sp;
		using android::hardware::Return;

		sp<IServiceManager> manager = IServiceManager::getService();
		std::set<int> pids;

		Return<void> ret = manager->debugDump([&](auto& hals) {
		for (const auto &info : hals) {
		if (info.pid == static_cast<int>(IServiceManager::PidConstant::NO_PID)) {
		continue;
		}

		if (!should_dump_hal_interface(info.interfaceName)) {
		continue;
		}

		pids.insert(info.pid);
		}
		});

		if (!ret.isOk()) {
		MYLOGE("Could not get list of HAL PIDs: %s\n", ret.description().c_str());
		}

		return pids; // whether it was okay or not
		}

		/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */
		const char *dump_traces() {
		DurationReporter duration_reporter("DUMP TRACES");
		@@ -835,6 +885,7 @@ const char *dump_traces() {
		/* Variables below must be initialized before 'goto' statements */
		int dalvik_found = 0;
		int ifd, wfd = -1;
		std::set<int> hal_pids = get_interesting_hal_pids();

		/* walk /proc and kill -QUIT all Dalvik processes */
		DIR *proc = opendir("/proc");
		@@ -909,7 +960,8 @@ const char *dump_traces() {
		dprintf(fd, "[dump dalvik stack %d: %.3fs elapsed]\n", pid,
		(float)(Nanotime() - start) / NANOS_PER_SEC);
		}
		} else if (should_dump_native_traces(data)) {
		} else if (should_dump_native_traces(data) \|\|
		hal_pids.find(pid) != hal_pids.end()) {
		/* dump native process if appropriate */
		if (lseek(fd, 0, SEEK_END) < 0) {
		MYLOGE("lseek: %s\n", strerror(errno));