Home | History | Annotate | Download | only in debuggerd 
      1 
      2 //#include <cutils/misc.h>
      3 
      4 #include <unistd.h>
      5 #include <stdio.h>
      6 #include <stdlib.h>
      7 #include <string.h>
      8 #include <sched.h>
      9 #include <errno.h>
     10 
     11 #include <signal.h>
     12 #include <sys/ptrace.h>
     13 #include <sys/wait.h>
     14 #include <sys/socket.h>
     15 
     16 #include <pthread.h>
     17 
     18 #include <cutils/sockets.h>
     19 
     20 void crash1(void);
     21 void crashnostack(void);
     22 void maybeabort(void);
     23 
     24 static void debuggerd_connect()
     25 {
     26     char tmp[1];
     27     int s;
     28     sprintf(tmp, "%d", gettid());
     29     s = socket_local_client("android:debuggerd",
     30             ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
     31     if(s >= 0) {
     32         read(s, tmp, 1);
     33         close(s);
     34     }
     35 }
     36 
     37 void test_call1()
     38 {
     39     *((int*) 32) = 1;
     40 }
     41 
     42 void *test_thread(void *x)
     43 {
     44     printf("crasher: thread pid=%d tid=%d\n", getpid(), gettid());
     45 
     46     sleep(1);
     47     test_call1();
     48     printf("goodbye\n");
     49 
     50     return 0;
     51 }
     52 
     53 void *noisy(void *x)
     54 {
     55     char c = (unsigned) x;
     56     for(;;) {
     57         usleep(250*1000);
     58         write(2, &c, 1);
     59         if(c == 'C') *((unsigned*) 0) = 42;
     60     }
     61     return 0;
     62 }
     63 
     64 int ctest()
     65 {
     66     pthread_t thr;
     67     pthread_attr_t attr;
     68     pthread_attr_init(&attr);
     69     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
     70     pthread_create(&thr, &attr, noisy, (void*) 'A');
     71     pthread_create(&thr, &attr, noisy, (void*) 'B');
     72     pthread_create(&thr, &attr, noisy, (void*) 'C');
     73     for(;;) ;
     74     return 0;
     75 }
     76 
     77 int main(int argc, char **argv)
     78 {
     79     pthread_t thr;
     80     pthread_attr_t attr;
     81 
     82     fprintf(stderr,"crasher: " __TIME__ "!@\n");
     83     fprintf(stderr,"crasher: init pid=%d tid=%d\n", getpid(), gettid());
     84 
     85     if(argc > 1) {
     86         if(!strcmp(argv[1],"nostack")) crashnostack();
     87         if(!strcmp(argv[1],"ctest")) return ctest();
     88         if(!strcmp(argv[1],"exit")) exit(1);
     89         if(!strcmp(argv[1],"abort")) maybeabort();
     90 
     91         pthread_attr_init(&attr);
     92         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
     93         pthread_create(&thr, &attr, test_thread, 0);
     94         while(1) sleep(1);
     95     } else {
     96         crash1();
     97 //        *((int*) 0) = 42;
     98     }
     99 
    100     return 0;
    101 }
    102 
    103 void maybeabort()
    104 {
    105     if(time(0) != 42) abort();
    106 }
    107