Frameworks/base/cmds/bugreport
bugreport：啟動dumpstatus服務，並通過socket連接，讀取信息，並保持到stdout管道中
frameworks/native/cmds/dumpstatus
dumpstatus：android的相關信息,內核，進程，相關信息的主要實現地方。我們就
frameworks/native/cmds/dumpysy
dumpsys: 獲取android服務進程的各個信息,比如dumpsys media.audio_policy 等
dumpstate主要獲取信息：
1，基本信息，如版本信息，內存基本信息，cpu基本信息，硬件信息等
2，系統log
3，網絡信息，路由信息，網絡撇之信息
4，panic信息
5，鎖的使用信息
6，進程信息
7，binder信息
8，應用程序安裝信息
9，磁盤使用情況
10，所有activity,services 信息
11，properties信息 等
通過費納西 dumpstate工具代碼，我們能有效的了解在android中過去各種信息，有針對性的對自己需要的信息進行獲取。學到了linux的上層如果對系統
信息進行管理與統計的！
如要獲取信息渠道：
1,cat proc各個節點獲取想要信息
2，property_get各個屬性的信息
3，run_commend去運行系統命令，獲取需要的信息。主要是這樣的方法
4，dumpsys命令
下面附上該函數的實現文件：
frameworks/native/cmds/dumpstate/dumpstate.c 文件：
[cpp]
//主要處理函數 與注釋
static void dumpstate() {
time_t now = time(NULL);//當前時間
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];
//獲取基本信息
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");
//運行外部命令：獲取系統的開機時間，等相關信息
run_command("UPTIME", 10, "uptime", NULL);
//內存概要信息
dump_file("MEMORY INFO", "/proc/meminfo");
//CPU 信息
run_command("CPU INFO", 10, "top", "-n", "1", "-d", "1", "-m", "30", "-t", NULL);
//內存快照工具 在xbin下面
run_command("PROCRANK", 20, "procrank", NULL);
//內存詳細信息
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);
}
//系統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 網絡配置信息
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);
//路由情況
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();
//打印系統信息
run_command("KERNEL LOG", 20, "dmesg", NULL);
//打印鎖信息
dump_file("KERNEL WAKELOCKS", "/proc/wakelocks");
//打印cpu使用情況
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);
//進程信息
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相關信息
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");
//磁盤使用信息
run_command("FILESYSTEMS & FREE SPACE", 10, "su", "root", "df", NULL);
//應用程序安裝信息
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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