nptl/tst-tls3.c

   1 /* Copyright (C) 2003, 2004, 2011 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <dlfcn.h>
  21 #include <errno.h>
  22 #include <pthread.h>
  23 #include <signal.h>
  24 #include <semaphore.h>
  25 #include <stdint.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <pthreaddef.h>
  30
  31 #define THE_SIG SIGUSR1
  32
  33
  34 #define N 10
  35 static pthread_t th[N];
  36
  37
  38 #define CB(n) \
  39 static void                                                                   \
  40 cb##n (void)                                                                  \
  41 {                                                                             \
  42   if (th[n] != pthread_self ())                                               \
  43     {                                                                         \
  44       write (STDOUT_FILENO, "wrong callback\n", 15);                          \
  45       _exit (1);                                                              \
  46     }                                                                         \
  47 }
  48 CB (0)
  49 CB (1)
  50 CB (2)
  51 CB (3)
  52 CB (4)
  53 CB (5)
  54 CB (6)
  55 CB (7)
  56 CB (8)
  57 CB (9)
  58 static void (*cbs[]) (void) =
  59 {
  60   cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
  61 };
  62
  63
  64 sem_t s;
  65
  66
  67 pthread_barrier_t b;
  68
  69 #define TOTAL_SIGS 1000
  70 int nsigs;
  71
  72
  73 int
  74 do_test (void)
  75 {
  76   if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
  77     {
  78       puts ("initial thread's struct pthread not aligned enough");
  79       exit (1);
  80     }
  81
  82   if (pthread_barrier_init (&b, NULL, N + 1) != 0)
  83     {
  84       puts ("barrier_init failed");
  85       exit (1);
  86     }
  87
  88   if (sem_init (&s, 0, 0) != 0)
  89     {
  90       puts ("sem_init failed");
  91       exit (1);
  92     }
  93
  94   void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);
  95   if (h == NULL)
  96     {
  97       puts ("dlopen failed");
  98       exit (1);
  99     }
 100
 101   void *(*tf) (void *) = dlsym (h, "tf");
 102   if (tf == NULL)
 103     {
 104       puts ("dlsym for tf failed");
 105       exit (1);
 106     }
 107
 108   struct sigaction sa;
 109   sa.sa_handler = dlsym (h, "handler");
 110   if (sa.sa_handler == NULL)
 111     {
 112       puts ("dlsym for handler failed");
 113       exit (1);
 114     }
 115   sigemptyset (&sa.sa_mask);
 116   sa.sa_flags = 0;
 117   if (sigaction (THE_SIG, &sa, NULL) != 0)
 118     {
 119       puts ("sigaction failed");
 120       exit (1);
 121     }
 122
 123   pthread_attr_t a;
 124
 125   if (pthread_attr_init (&a) != 0)
 126     {
 127       puts ("attr_init failed");
 128       exit (1);
 129     }
 130
 131   if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)
 132     {
 133       puts ("attr_setstacksize failed");
 134       return 1;
 135     }
 136
 137   int r;
 138   for (r = 0; r < 10; ++r)
 139     {
 140       int i;
 141       for (i = 0; i < N; ++i)
 142         if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)
 143           {
 144             puts ("pthread_create failed");
 145             exit (1);
 146           }
 147
 148       nsigs = 0;
 149
 150       pthread_barrier_wait (&b);
 151
 152       sigset_t ss;
 153       sigemptyset (&ss);
 154       sigaddset (&ss, THE_SIG);
 155       if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
 156         {
 157           puts ("pthread_sigmask failed");
 158           exit (1);
 159         }
 160
 161       /* Start sending signals.  */
 162       for (i = 0; i < TOTAL_SIGS; ++i)
 163         {
 164           if (kill (getpid (), THE_SIG) != 0)
 165             {
 166               puts ("kill failed");
 167               exit (1);
 168             }
 169
 170           if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
 171             {
 172               puts ("sem_wait failed");
 173               exit (1);
 174             }
 175
 176           ++nsigs;
 177         }
 178
 179       pthread_barrier_wait (&b);
 180
 181       if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)
 182         {
 183           puts ("pthread_sigmask failed");
 184           exit (1);
 185         }
 186
 187       for (i = 0; i < N; ++i)
 188         if (pthread_join (th[i], NULL) != 0)
 189           {
 190             puts ("join failed");
 191             exit (1);
 192           }
 193     }
 194
 195   if (pthread_attr_destroy (&a) != 0)
 196     {
 197       puts ("attr_destroy failed");
 198       exit (1);
 199     }
 200
 201   return 0;
 202 }
 203
 204
 205 #define TIMEOUT 5
 206 #define TEST_FUNCTION do_test ()
 207 #include "../test-skeleton.c"