Android dumpstate 工具解析

Frameworks/base/cmds/bugreport

bugreport：启动dumpstatus服务，并通过socket连接，读取信息，并保持到stdout管道中

frameworks/native/cmds/dumpstatus

dumpstatus：android的相关信息,内核，进程，相关信息的主要实现地方。我们就

frameworks/native/cmds/dumpysy

dumpsys: 获取android服务进程的各个信息,比如dumpsys media.audio_policy 等

dumpstate主要获取信息：

1，基本信息，如版本信息，内存基本信息，cpu基本信息，硬件信息等

2，系统log

3，网络信息，路由信息，网络撇之信息

4，panic信息

5，锁的使用信息

6，进程信息

7，binder信息

8，应用程序安装信息

9，磁盘使用情况

10，所有activity,services 信息

11，properties信息 等

通过费纳西 dumpstate工具代码，我们能有效的了解在android中过去各种信息，有针对性的对自己需要的信息进行获取。学到了linux的上层如果对系统

信息进行管理与统计的！

如要获取信息渠道：

1,cat proc各个节点获取想要信息

2，property_get各个属性的信息

3，run_commend去运行系统命令，获取需要的信息。主要是这样的方法

4，dumpsys命令

下面附上该函数的实现文件：

frameworks/native/cmds/dumpstate/dumpstate.c 文件：

//主要处理函数 与注释
	static void dumpstate() {
	    time_t now = time(NULL);//当前时间
	    char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
	    char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
	    char network[PROPERTY_VALUE_MAX], date[80];
	    char build_type[PROPERTY_VALUE_MAX];
	       
	//获取基本信息
	    property_get("ro.build.display.id", build, "(unknown)");
	    property_get("ro.build.fingerprint", fingerprint, "(unknown)");
	    property_get("ro.build.type", build_type, "(unknown)");
	    property_get("ro.baseband", radio, "(unknown)");
	    property_get("ro.bootloader", bootloader, "(unknown)");
	    property_get("gsm.operator.alpha", network, "(unknown)");
	    strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", localtime(&now));
	
	    printf("========================================================\n");
	    printf("== dumpstate: %s\n", date);
	    printf("========================================================\n");
	
	    printf("\n");
	    printf("Build: %s\n", build);
	    printf("Bootloader: %s\n", bootloader);
	    printf("Radio: %s\n", radio);
	    printf("Network: %s\n", network);
	
	    printf("Kernel: ");
	//版本信息
	    dump_file(NULL, "/proc/version");
	    printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
	    printf("\n");
	//运行外部命令：获取系统的开机时间，等相关信息
	    run_command("UPTIME", 10, "uptime", NULL);
	//内存概要信息
	    dump_file("MEMORY INFO", "/proc/meminfo");
	//CPU 信息
	    run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
	//内存快照工具 在xbin下面
	    run_command("PROCRANK", 20, "procrank", NULL);
	//内存详细信息
	    dump_file("VIRTUAL MEMORY STATS", "/proc/vmstat");
	    dump_file("VMALLOC INFO", "/proc/vmallocinfo");
	    dump_file("SLAB INFO", "/proc/slabinfo");
	    dump_file("ZONEINFO", "/proc/zoneinfo");
	    dump_file("PAGETYPEINFO", "/proc/pagetypeinfo");
	    dump_file("BUDDYINFO", "/proc/buddyinfo");
	
	    if (screenshot_path[0]) {
	        LOGI("taking screenshot\n");
	        run_command(NULL, 5, "su", "root", "screenshot", screenshot_path, NULL);
	        LOGI("wrote screenshot: %s\n", screenshot_path);
	    }
	//系统log
	    run_command("SYSTEM LOG", 20, "logcat", "-v", "threadtime", "-d", "*:v", NULL);
	
	    /* show the traces we collected in main(), if that was done */
	    if (dump_traces_path != NULL) {
	        dump_file("VM TRACES JUST NOW", dump_traces_path);
	    }
	
	    /* only show ANR traces if they're less than 15 minutes old */
	    struct stat st;
	    char anr_traces_path[PATH_MAX];
	    property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
	    if (!anr_traces_path[0]) {
	        printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
	    } else if (stat(anr_traces_path, &st)) {
	        printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
	    } else {
	        dump_file("VM TRACES AT LAST ANR", anr_traces_path);
	    }
	
	    // dump_file("EVENT LOG TAGS", "/etc/event-log-tags");
	    run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
	    run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);
	//netcfg 网络配置信息
	    run_command("NETWORK INTERFACES", 10, "su", "root", "netcfg", NULL);
	    dump_file("NETWORK DEV INFO", "/proc/net/dev");
	    dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
	    dump_file("QTAGUID CTRL INFO", "/proc/net/xt_qtaguid/ctrl");
	    run_command("QTAGUID STATS INFO", 10, "su", "root", "cat", "/proc/net/xt_qtaguid/stats", NULL);
	//路由情况
	    dump_file("NETWORK ROUTES", "/proc/net/route");
	    dump_file("NETWORK ROUTES IPV6", "/proc/net/ipv6_route");
	    run_command("IP RULES", 10, "ip", "rule", "show", NULL);
	    run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);
	    run_command("ROUTE TABLE 60", 10, "ip", "route", "show", "table", "60", NULL);
	    run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "60", NULL);
	    run_command("ROUTE TABLE 61", 10, "ip", "route", "show", "table", "61", NULL);
	    run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "61", NULL);
	    dump_file("ARP CACHE", "/proc/net/arp");
	    run_command("IPTABLES", 10, "su", "root", "iptables", "-L", "-nvx", NULL);
	    run_command("IP6TABLES", 10, "su", "root", "ip6tables", "-L", "-nvx", NULL);
	    run_command("IPTABLE NAT", 10, "su", "root", "iptables", "-t", "nat", "-L", "-n", NULL);
	    run_command("IPT6ABLE NAT", 10, "su", "root", "ip6tables", "-t", "nat", "-L", "-n", NULL);
	
	    run_command("WIFI NETWORKS", 20,
	            "su", "root", "wpa_cli", "list_networks", NULL);
	
	    property_get("dhcp.wlan0.gateway", network, "");
	    if (network[0])
	        run_command("PING GATEWAY", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
	    property_get("dhcp.wlan0.dns1", network, "");
	    if (network[0])
	        run_command("PING DNS1", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
	    property_get("dhcp.wlan0.dns2", network, "");
	    if (network[0])
	        run_command("PING DNS2", 10, "su", "root", "ping", "-c", "3", "-i", ".5", network, NULL);
	#ifdef FWDUMP_bcm4329
	    run_command("DUMP WIFI STATUS", 20,
	            "su", "root", "dhdutil", "-i", "wlan0", "dump", NULL);
	    run_command("DUMP WIFI INTERNAL COUNTERS", 20,
	            "su", "root", "wlutil", "counters", NULL);
	#endif
	//
	    char ril_dumpstate_timeout[PROPERTY_VALUE_MAX] = {0};
	    property_get("ril.dumpstate.timeout", ril_dumpstate_timeout, "30");
	    if (strnlen(ril_dumpstate_timeout, PROPERTY_VALUE_MAX - 1) > 0) {
	        if (0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1)) {
	            // su does not exist on user builds, so try running without it.
	            // This way any implementations of vril-dump that do not require
	            // root can run on user builds.
	            run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
	                    "vril-dump", NULL);
	        } else {
	            run_command("DUMP VENDOR RIL LOGS", atoi(ril_dumpstate_timeout),
	                    "su", "root", "vril-dump", NULL);
	        }
	    }
		//打印 properties
	    print_properties();
	//打印系统信息
	    run_command("KERNEL LOG", 20, "dmesg", NULL);
	//打印锁信息
	    dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
	//打印cpu使用情况  
	  dump_file("KERNEL CPUFREQ", "/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
	
	    run_command("VOLD DUMP", 10, "vdc", "dump", NULL);
	    run_command("SECURE CONTAINERS", 10, "vdc", "asec", "list", NULL);
	//进程信息
	    run_command("PROCESSES", 10, "ps", "-P", NULL);
	    run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
	    run_command("LIBRANK", 10, "librank", NULL);
	//BINDER相关信息
	    dump_file("BINDER FAILED TRANSACTION LOG", "/sys/kernel/debug/binder/failed_transaction_log");
	    dump_file("BINDER TRANSACTION LOG", "/sys/kernel/debug/binder/transaction_log");
	    dump_file("BINDER TRANSACTIONS", "/sys/kernel/debug/binder/transactions");
	    dump_file("BINDER STATS", "/sys/kernel/debug/binder/stats");
	    dump_file("BINDER STATE", "/sys/kernel/debug/binder/state");
	//磁盘使用信息
	    run_command("FILESYSTEMS & FREE SPACE", 10, "su", "root", "df", NULL);
	//应用程序安装信息
	    dump_file("PACKAGE SETTINGS", "/data/system/packages.xml");
	    dump_file("PACKAGE UID ERRORS", "/data/system/uiderrors.txt");
	
	    dump_file("LAST KMSG", "/proc/last_kmsg");
	    run_command("LAST RADIO LOG", 10, "parse_radio_log", "/proc/last_radio_log", NULL);
	//panic信息
	    dump_file("LAST PANIC CONSOLE", "/data/dontpanic/apanic_console");
	    dump_file("LAST PANIC THREADS", "/data/dontpanic/apanic_threads");
	
	    for_each_pid(show_wchan, "BLOCKED PROCESS WAIT-CHANNELS");
	
	    printf("------ BACKLIGHTS ------\n");
	    printf("LCD brightness=");
	    dump_file(NULL, "/sys/class/leds/lcd-backlight/brightness");
	    printf("Button brightness=");
	    dump_file(NULL, "/sys/class/leds/button-backlight/brightness");
	    printf("Keyboard brightness=");
	    dump_file(NULL, "/sys/class/leds/keyboard-backlight/brightness");
	    printf("ALS mode=");
	    dump_file(NULL, "/sys/class/leds/lcd-backlight/als");
	    printf("LCD driver registers:\n");
	    dump_file(NULL, "/sys/class/leds/lcd-backlight/registers");
	    printf("\n");
	
	    run_command("LIST OF OPEN FILES", 10, "su", "root", "lsof", NULL);
	
	    for_each_pid(do_showmap, "SMAPS OF ALL PROCESSES");
	
	#ifdef BOARD_HAS_DUMPSTATE
	    printf("========================================================\n");
	    printf("== Board\n");
	    printf("========================================================\n");
	
	    dumpstate_board();
	    printf("\n");
	#endif
	
	    printf("========================================================\n");
	    printf("== Android Framework Services\n");
	    printf("========================================================\n");
	
	    /* the full dumpsys is starting to take a long time, so we need
	       to increase its timeout.  we really need to do the timeouts in
	       dumpsys itself... */
	    run_command("DUMPSYS", 60, "dumpsys", NULL);
	
	    printf("========================================================\n");
	    printf("== Running Application Activities\n");
	    printf("========================================================\n");
	
	    run_command("APP ACTIVITIES", 30, "dumpsys", "activity", "all", NULL);
	
	    printf("========================================================\n");
	    printf("== Running Application Services\n");
	    printf("========================================================\n");
	//使用dumpsys 打印activity 和 services的信息
	    run_command("APP SERVICES", 30, "dumpsys", "activity", "service", "all", NULL);
	
	    printf("========================================================\n");
	    printf("== dumpstate: done\n");
	    printf("========================================================\n");
	}

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