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/dumpsys

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_command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：

[cpp]  

//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");  

    }