nptl/tst-tls3.c

   1 /* Copyright (C) 2003 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 !HAVE___THREAD
  77
  78   puts ("No __thread support in compiler, test skipped.");
  79
  80   return 0;
  81 #else
  82
  83   if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
  84     {
  85       puts ("initial thread's struct pthread not aligned enough");
  86       exit (1);
  87     }
  88
  89   if (pthread_barrier_init (&b, NULL, N + 1) != 0)
  90     {
  91       puts ("barrier_init failed");
  92       exit (1);
  93     }
  94
  95   if (sem_init (&s, 0, 0) != 0)
  96     {
  97       puts ("sem_init failed");
  98       exit (1);
  99     }
 100
 101   void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);
 102   if (h == NULL)
 103     {
 104       puts ("dlopen failed");
 105       exit (1);
 106     }
 107
 108   void *(*tf) (void *) = dlsym (h, "tf");
 109   if (tf == NULL)
 110     {
 111       puts ("dlsym for tf failed");
 112       exit (1);
 113     }
 114
 115   struct sigaction sa;
 116   sa.sa_handler = dlsym (h, "handler");
 117   if (sa.sa_handler == NULL)
 118     {
 119       puts ("dlsym for handler failed");
 120       exit (1);
 121     }
 122   sigemptyset (&sa.sa_mask);
 123   sa.sa_flags = 0;
 124   if (sigaction (THE_SIG, &sa, NULL) != 0)
 125     {
 126       puts ("sigaction failed");
 127       exit (1);
 128     }
 129
 130   int r;
 131   for (r = 0; r < 10; ++r)
 132     {
 133       int i;
 134       for (i = 0; i < N; ++i)
 135         if (pthread_create (&th[i], NULL, tf, cbs[i]) != 0)
 136           {
 137             puts ("pthread_create failed");
 138             exit (1);
 139           }
 140
 141       nsigs = 0;
 142
 143       pthread_barrier_wait (&b);
 144
 145       sigset_t ss;
 146       sigemptyset (&ss);
 147       sigaddset (&ss, THE_SIG);
 148       if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
 149         {
 150           puts ("pthread_sigmask failed");
 151           exit (1);
 152         }
 153
 154       /* Start sending signals.  */
 155       for (i = 0; i < TOTAL_SIGS; ++i)
 156         {
 157           if (kill (getpid (), THE_SIG) != 0)
 158             {
 159               puts ("kill failed");
 160               exit (1);
 161             }
 162
 163           if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
 164             {
 165               puts ("sem_wait failed");
 166               exit (1);
 167             }
 168
 169           ++nsigs;
 170         }
 171
 172       pthread_barrier_wait (&b);
 173
 174       if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)
 175         {
 176           puts ("pthread_sigmask failed");
 177           exit (1);
 178         }
 179
 180       for (i = 0; i < N; ++i)
 181         if (pthread_join (th[i], NULL) != 0)
 182           {
 183             puts ("join failed");
 184             exit (1);
 185           }
 186     }
 187
 188   return 0;
 189 #endif
 190 }
 191
 192
 193 #define TIMEOUT 5
 194 #define TEST_FUNCTION do_test ()
 195 #include "../test-skeleton.c"