src/regression/tls_get_new-dtv.c

   1 // __tls_get_new did not allocate new dtv for threads properly
   2 #include <pthread.h>
   3 #include <dlfcn.h>
   4 #include "test.h"
   5
   6 #define N 10
   7
   8 #define T(c) ((c) || (t_error(#c " failed\n"),0))
   9
  10 static pthread_barrier_t b;
  11 static void *mod;
  12
  13 static void *start(void *a)
  14 {
  15         void *(*f)(void);
  16
  17         pthread_barrier_wait(&b);
  18         T(f = dlsym(mod, "f"));
  19         f();
  20         return 0;
  21 }
  22
  23 int main()
  24 {
  25         pthread_t td[N];
  26         int i;
  27
  28         pthread_barrier_init(&b, 0, N+1);
  29         for (i=0; i<N; i++)
  30                 T(!pthread_create(td+i, 0, start, 0));
  31
  32         T(mod = dlopen("tls_get_new-dtv_dso.so", RTLD_NOW));
  33         pthread_barrier_wait(&b);
  34
  35         for (i=0; i<N; i++)
  36                 T(!pthread_join(td[i], 0));
  37         return t_status;
  38 }