Merge "Dumpstate should hold a wakelock to save bug report time." into cw-f-dev (64076bac) · Commits · e / os / android_frameworks_native

cmds/dumpstate/Android.mk

+1 −1

Original line number	Diff line number	Diff line
		@@ -14,7 +14,7 @@ LOCAL_SRC_FILES := dumpstate.cpp utils.cpp

		LOCAL_MODULE := dumpstate

		LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux libbase
		LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux libbase libhardware_legacy
		# ZipArchive support, the order matters here to get all symbols.
		LOCAL_STATIC_LIBRARIES := libziparchive libz libmincrypt
		LOCAL_HAL_STATIC_LIBRARIES := libdumpstate

cmds/dumpstate/dumpstate.cpp

+33 −8

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@
		#include <memory>
		#include <regex>
		#include <set>
		#include <signal.h>
		#include <stdbool.h>
		#include <stdio.h>
		#include <stdlib.h>
		@@ -37,6 +38,7 @@
		#include <android-base/stringprintf.h>
		#include <android-base/file.h>
		#include <cutils/properties.h>
		#include <hardware_legacy/power.h>

		#include "private/android_filesystem_config.h"

		@@ -82,6 +84,7 @@ static std::string suffix;
		#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4)
		#define NUM_TOMBSTONES 10
		#define WLUTIL "/vendor/xbin/wlutil"
		#define WAKE_LOCK_NAME "dumpstate_wakelock"

		typedef struct {
		char name[TOMBSTONE_MAX_LEN];
		@@ -1147,11 +1150,31 @@ static void usage() {
		VERSION_DEFAULT.c_str());
		}

		static void sigpipe_handler(int n) {
		// don't complain to stderr or stdout
		static void wake_lock_releaser() {
		if (release_wake_lock(WAKE_LOCK_NAME) < 0) {
		MYLOGE("Failed to release wake lock: %s \n", strerror(errno));
		} else {
		MYLOGD("Wake lock released.\n");
		}
		}

		static void sig_handler(int signo) {
		wake_lock_releaser();
		_exit(EXIT_FAILURE);
		}

		static void register_sig_handler() {
		struct sigaction sa;
		sigemptyset(&sa.sa_mask);
		sa.sa_flags = 0;
		sa.sa_handler = sig_handler;
		sigaction(SIGPIPE, &sa, NULL); // broken pipe
		sigaction(SIGSEGV, &sa, NULL); // segment fault
		sigaction(SIGINT, &sa, NULL); // ctrl-c
		sigaction(SIGTERM, &sa, NULL); // killed
		sigaction(SIGQUIT, &sa, NULL); // quit
		}

		/* adds the temporary report to the existing .zip file, closes the .zip file, and removes the
		temporary file.
		*/
		@@ -1219,7 +1242,6 @@ static std::string SHA256_file_hash(std::string filepath) {
		}

		int main(int argc, char *argv[]) {
		struct sigaction sigact;
		int do_add_date = 0;
		int do_zip_file = 0;
		int do_vibrate = 1;
		@@ -1236,6 +1258,14 @@ int main(int argc, char *argv[]) {

		MYLOGI("begin\n");

		if (acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_NAME) < 0) {
		MYLOGE("Failed to acquire wake lock: %s \n", strerror(errno));
		} else {
		MYLOGD("Wake lock acquired.\n");
		atexit(wake_lock_releaser);
		register_sig_handler();
		}

		/* gets the sequential id */
		char last_id[PROPERTY_VALUE_MAX];
		property_get("dumpstate.last_id", last_id, "0");
		@@ -1244,11 +1274,6 @@ int main(int argc, char *argv[]) {
		property_set("dumpstate.last_id", last_id);
		MYLOGI("dumpstate id: %lu\n", id);

		/* clear SIGPIPE handler */
		memset(&sigact, 0, sizeof(sigact));
		sigact.sa_handler = sigpipe_handler;
		sigaction(SIGPIPE, &sigact, NULL);

		/* set as high priority, and protect from OOM killer */
		setpriority(PRIO_PROCESS, 0, -20);

cmds/dumpstate/utils.cpp

+5 −3

Original line number	Diff line number	Diff line
		@@ -828,7 +828,7 @@ bool drop_root_user() {
		}

		gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW,
		AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC };
		AID_MOUNT, AID_INET, AID_NET_BW_STATS, AID_READPROC, AID_WAKELOCK };
		if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
		MYLOGE("Unable to setgroups, aborting: %s\n", strerror(errno));
		return false;
		@@ -849,8 +849,10 @@ bool drop_root_user() {
		capheader.version = _LINUX_CAPABILITY_VERSION_3;
		capheader.pid = 0;

		capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted = CAP_TO_MASK(CAP_SYSLOG);
		capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective = CAP_TO_MASK(CAP_SYSLOG);
		capdata[CAP_TO_INDEX(CAP_SYSLOG)].permitted =
		(CAP_TO_MASK(CAP_SYSLOG) \| CAP_TO_MASK(CAP_BLOCK_SUSPEND));
		capdata[CAP_TO_INDEX(CAP_SYSLOG)].effective =
		(CAP_TO_MASK(CAP_SYSLOG) \| CAP_TO_MASK(CAP_BLOCK_SUSPEND));
		capdata[0].inheritable = 0;
		capdata[1].inheritable = 0;