Call atrace HAL in atrace (e3866134) · Commits · e / os / android_frameworks_native-old

cmds/atrace/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ cc_binary {
		"libz",
		"libbase",
		"libpdx_default_transport",
		"android.hardware.atrace@1.0",
		],

		init_rc: ["atrace.rc"],

cmds/atrace/atrace.cpp

+121 −9

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@
		#include <binder/IServiceManager.h>
		#include <binder/Parcel.h>

		#include <android/hardware/atrace/1.0/IAtraceDevice.h>
		#include <android/hidl/manager/1.0/IServiceManager.h>
		#include <hidl/ServiceManagement.h>

		@@ -52,6 +53,12 @@

		using namespace android;
		using pdx::default_transport::ServiceUtility;
		using hardware::hidl_vec;
		using hardware::hidl_string;
		using hardware::Return;
		using hardware::atrace::V1_0::IAtraceDevice;
		using hardware::atrace::V1_0::Status;
		using hardware::atrace::V1_0::toString;

		using std::string;

		@@ -92,11 +99,7 @@ struct TracingCategory {

		/* Tracing categories */
		static const TracingCategory k_categories[] = {
		{ "gfx", "Graphics", ATRACE_TAG_GRAPHICS, {
		{ OPT, "events/mdss/enable" },
		{ OPT, "events/sde/enable" },
		{ OPT, "events/mali_systrace/enable" },
		} },
		{ "gfx", "Graphics", ATRACE_TAG_GRAPHICS, { } },
		{ "input", "Input", ATRACE_TAG_INPUT, { } },
		{ "view", "View System", ATRACE_TAG_VIEW, { } },
		{ "webview", "WebView", ATRACE_TAG_WEBVIEW, { } },
		@@ -223,6 +226,23 @@ static const TracingCategory k_categories[] = {
		} },
		};

		struct TracingVendorCategory {
		// The name identifying the category.
		std::string name;

		// A longer description of the category.
		std::string description;

		// If the category is enabled through command.
		bool enabled;

		TracingVendorCategory(string &&name, string &&description, bool enabled)
		: name(std::move(name))
		, description(std::move(description))
		, enabled(enabled)
		{}
		};

		/* Command line options */
		static int g_traceDurationSeconds = 5;
		static bool g_traceOverwrite = false;
		@@ -240,6 +260,8 @@ static bool g_tracePdx = false;
		static bool g_traceAborted = false;
		static bool g_categoryEnables[arraysize(k_categories)] = {};
		static std::string g_traceFolder;
		static sp<IAtraceDevice> g_atraceHal;
		static std::vector<TracingVendorCategory> g_vendorCategories;

		/* Sys file paths */
		static const char* k_traceClockPath =
		@@ -755,13 +777,20 @@ static bool setKernelTraceFuncs(const char* funcs)
		return ok;
		}

		static bool setCategoryEnable(const char* name, bool enable)
		static bool setCategoryEnable(const char* name)
		{
		bool vendor_found = false;
		for (auto &c : g_vendorCategories) {
		if (strcmp(name, c.name.c_str()) == 0) {
		c.enabled = true;
		vendor_found = true;
		}
		}
		for (size_t i = 0; i < arraysize(k_categories); i++) {
		const TracingCategory& c = k_categories[i];
		if (strcmp(name, c.name) == 0) {
		if (isCategorySupported(c)) {
		g_categoryEnables[i] = enable;
		g_categoryEnables[i] = true;
		return true;
		} else {
		if (isCategorySupportedForRoot(c)) {
		@@ -775,6 +804,9 @@ static bool setCategoryEnable(const char* name, bool enable)
		}
		}
		}
		if (vendor_found) {
		return true;
		}
		fprintf(stderr, "error: unknown tracing category \"%s\"\n", name);
		return false;
		}
		@@ -795,7 +827,7 @@ static bool setCategoriesEnableFromFile(const char* categories_file)
		tokenizer->skipDelimiters(" ");
		continue;
		}
		ok &= setCategoryEnable(token.string(), true);
		ok &= setCategoryEnable(token.string());
		}
		delete tokenizer;
		return ok;
		@@ -1083,6 +1115,9 @@ static void listSupportedCategories()
		printf(" %10s - %s\n", c.name, c.longname);
		}
		}
		for (const auto &c : g_vendorCategories) {
		printf(" %10s - %s (HAL)\n", c.name.c_str(), c.description.c_str());
		}
		}

		// Print the command usage help to stderr.
		@@ -1139,6 +1174,79 @@ bool findTraceFiles()
		return true;
		}

		void initVendorCategories()
		{
		g_atraceHal = IAtraceDevice::getService();

		if (g_atraceHal == nullptr) {
		// No atrace HAL
		return;
		}

		Return<void> ret = g_atraceHal->listCategories(
		[](const auto& list) {
		g_vendorCategories.reserve(list.size());
		for (const auto& category : list) {
		g_vendorCategories.emplace_back(category.name, category.description, false);
		}
		});
		if (!ret.isOk()) {
		fprintf(stderr, "calling atrace HAL failed: %s\n", ret.description().c_str());
		}
		}

		static bool setUpVendorTracing()
		{
		if (g_atraceHal == nullptr) {
		// No atrace HAL
		return true;
		}

		std::vector<hidl_string> categories;
		for (const auto &c : g_vendorCategories) {
		if (c.enabled) {
		categories.emplace_back(c.name);
		}
		}

		if (!categories.size()) {
		return true;
		}

		auto ret = g_atraceHal->enableCategories(categories);
		if (!ret.isOk()) {
		fprintf(stderr, "calling atrace HAL failed: %s\n", ret.description().c_str());
		return false;
		} else if (ret != Status::SUCCESS) {
		fprintf(stderr, "calling atrace HAL failed: %s\n", toString(ret).c_str());
		return false;
		}
		return true;
		}

		static bool cleanUpVendorTracing()
		{
		if (g_atraceHal == nullptr) {
		// No atrace HAL
		return true;
		}

		if (!g_vendorCategories.size()) {
		// No vendor categories
		return true;
		}

		auto ret = g_atraceHal->disableAllCategories();
		if (!ret.isOk()) {
		fprintf(stderr, "calling atrace HAL failed: %s\n", ret.description().c_str());
		return false;
		} else if (ret != Status::SUCCESS) {
		fprintf(stderr, "calling atrace HAL failed: %s\n", toString(ret).c_str());
		return false;
		}
		return true;
		}

		int main(int argc, char **argv)
		{
		bool async = false;
		@@ -1158,6 +1266,8 @@ int main(int argc, char **argv)
		exit(-1);
		}

		initVendorCategories();

		for (;;) {
		int ret;
		int option_index = 0;
		@@ -1176,7 +1286,7 @@ int main(int argc, char **argv)

		if (ret < 0) {
		for (int i = optind; i < argc; i++) {
		if (!setCategoryEnable(argv[i], true)) {
		if (!setCategoryEnable(argv[i])) {
		fprintf(stderr, "error enabling tracing category \"%s\"\n", argv[i]);
		exit(1);
		}
		@@ -1279,6 +1389,7 @@ int main(int argc, char **argv)

		if (ok && traceStart && !onlyUserspace) {
		ok &= setUpKernelTracing();
		ok &= setUpVendorTracing();
		ok &= startTrace();
		}

		@@ -1347,6 +1458,7 @@ int main(int argc, char **argv)

		// Reset the trace buffer size to 1.
		if (traceStop) {
		cleanUpVendorTracing();
		cleanUpUserspaceTracing();
		if (!onlyUserspace)
		cleanUpKernelTracing();

cmds/atrace/atrace.rc

+0 −6

Original line number	Diff line number	Diff line
		@@ -125,12 +125,6 @@ on late-init
		chmod 0666 /sys/kernel/tracing/events/block/block_rq_complete/enable
		chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable

		# graphics
		chmod 0666 /sys/kernel/tracing/events/sde/enable
		chmod 0666 /sys/kernel/debug/tracing/events/sde/enable
		chmod 0666 /sys/kernel/tracing/events/mdss/enable
		chmod 0666 /sys/kernel/debug/tracing/events/mdss/enable

		# Tracing disabled by default
		write /sys/kernel/debug/tracing/tracing_on 0
		write /sys/kernel/tracing/tracing_on 0