1 /* 2 * Command that dumps interesting system state to the log. 3 * 4 */ 5 6 #define LOG_TAG "dumpsys" 7 8 #include <utils/Log.h> 9 #include <binder/Parcel.h> 10 #include <binder/ProcessState.h> 11 #include <binder/IServiceManager.h> 12 #include <binder/TextOutput.h> 13 #include <utils/Vector.h> 14 15 #include <getopt.h> 16 #include <stdlib.h> 17 #include <stdio.h> 18 #include <string.h> 19 #include <unistd.h> 20 #include <sys/time.h> 21 22 using namespace android; 23 24 static int sort_func(const String16* lhs, const String16* rhs) 25 { 26 return lhs->compare(*rhs); 27 } 28 29 int main(int argc, char* const argv[]) 30 { 31 signal(SIGPIPE, SIG_IGN); 32 sp<IServiceManager> sm = defaultServiceManager(); 33 fflush(stdout); 34 if (sm == NULL) { 35 ALOGE("Unable to get default service manager!"); 36 aerr << "dumpsys: Unable to get default service manager!" << endl; 37 return 20; 38 } 39 40 Vector<String16> services; 41 Vector<String16> args; 42 bool showListOnly = false; 43 if ((argc == 2) && (strcmp(argv[1], "-l") == 0)) { 44 showListOnly = true; 45 } 46 if ((argc == 1) || showListOnly) { 47 services = sm->listServices(); 48 services.sort(sort_func); 49 args.add(String16("-a")); 50 } else { 51 services.add(String16(argv[1])); 52 for (int i=2; i<argc; i++) { 53 args.add(String16(argv[i])); 54 } 55 } 56 57 const size_t N = services.size(); 58 59 if (N > 1) { 60 // first print a list of the current services 61 aout << "Currently running services:" << endl; 62 63 for (size_t i=0; i<N; i++) { 64 sp<IBinder> service = sm->checkService(services[i]); 65 if (service != NULL) { 66 aout << " " << services[i] << endl; 67 } 68 } 69 } 70 71 if (showListOnly) { 72 return 0; 73 } 74 75 for (size_t i=0; i<N; i++) { 76 sp<IBinder> service = sm->checkService(services[i]); 77 if (service != NULL) { 78 if (N > 1) { 79 aout << "------------------------------------------------------------" 80 "-------------------" << endl; 81 aout << "DUMP OF SERVICE " << services[i] << ":" << endl; 82 } 83 int err = service->dump(STDOUT_FILENO, args); 84 if (err != 0) { 85 aerr << "Error dumping service info: (" << strerror(err) 86 << ") " << services[i] << endl; 87 } 88 } else { 89 aerr << "Can't find service: " << services[i] << endl; 90 } 91 } 92 93 return 0; 94 } 95