nptl/tst-tls3.c

   1 /* Copyright (C) 2003-2015 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <dlfcn.h>
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <signal.h>
  23 #include <semaphore.h>
  24 #include <stdint.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <pthreaddef.h>
  29
  30 #define THE_SIG SIGUSR1
  31
  32
  33 #define N 10
  34 static pthread_t th[N];
  35
  36
  37 #define CB(n) \
  38 static void                                                                   \
  39 cb##n (void)                                                                  \
  40 {                                                                             \
  41   if (th[n] != pthread_self ())                                               \
  42     {                                                                         \
  43       write (STDOUT_FILENO, "wrong callback\n", 15);                          \
  44       _exit (1);                                                              \
  45     }                                                                         \
  46 }
  47 CB (0)
  48 CB (1)
  49 CB (2)
  50 CB (3)
  51 CB (4)
  52 CB (5)
  53 CB (6)
  54 CB (7)
  55 CB (8)
  56 CB (9)
  57 static void (*cbs[]) (void) =
  58 {
  59   cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
  60 };
  61
  62
  63 sem_t s;
  64
  65
  66 pthread_barrier_t b;
  67
  68 #define TOTAL_SIGS 1000
  69 int nsigs;
  70
  71
  72 int
  73 do_test (void)
  74 {
  75   if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
  76     {
  77       puts ("initial thread's struct pthread not aligned enough");
  78       exit (1);
  79     }
  80
  81   if (pthread_barrier_init (&b, NULL, N + 1) != 0)
  82     {
  83       puts ("barrier_init failed");
  84       exit (1);
  85     }
  86
  87   if (sem_init (&s, 0, 0) != 0)
  88     {
  89       puts ("sem_init failed");
  90       exit (1);
  91     }
  92
  93   void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);
  94   if (h == NULL)
  95     {
  96       puts ("dlopen failed");
  97       exit (1);
  98     }
  99
 100   void *(*tf) (void *) = dlsym (h, "tf");
 101   if (tf == NULL)
 102     {
 103       puts ("dlsym for tf failed");
 104       exit (1);
 105     }
 106
 107   struct sigaction sa;
 108   sa.sa_handler = dlsym (h, "handler");
 109   if (sa.sa_handler == NULL)
 110     {
 111       puts ("dlsym for handler failed");
 112       exit (1);
 113     }
 114   sigemptyset (&sa.sa_mask);
 115   sa.sa_flags = 0;
 116   if (sigaction (THE_SIG, &sa, NULL) != 0)
 117     {
 118       puts ("sigaction failed");
 119       exit (1);
 120     }
 121
 122   pthread_attr_t a;
 123
 124   if (pthread_attr_init (&a) != 0)
 125     {
 126       puts ("attr_init failed");
 127       exit (1);
 128     }
 129
 130   if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)
 131     {
 132       puts ("attr_setstacksize failed");
 133       return 1;
 134     }
 135
 136   int r;
 137   for (r = 0; r < 10; ++r)
 138     {
 139       int i;
 140       for (i = 0; i < N; ++i)
 141         if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)
 142           {
 143             puts ("pthread_create failed");
 144             exit (1);
 145           }
 146
 147       nsigs = 0;
 148
 149       pthread_barrier_wait (&b);
 150
 151       sigset_t ss;
 152       sigemptyset (&ss);
 153       sigaddset (&ss, THE_SIG);
 154       if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
 155         {
 156           puts ("pthread_sigmask failed");
 157           exit (1);
 158         }
 159
 160       /* Start sending signals.  */
 161       for (i = 0; i < TOTAL_SIGS; ++i)
 162         {
 163           if (kill (getpid (), THE_SIG) != 0)
 164             {
 165               puts ("kill failed");
 166               exit (1);
 167             }
 168
 169           if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
 170             {
 171               puts ("sem_wait failed");
 172               exit (1);
 173             }
 174
 175           ++nsigs;
 176         }
 177
 178       pthread_barrier_wait (&b);
 179
 180       if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)
 181         {
 182           puts ("pthread_sigmask failed");
 183           exit (1);
 184         }
 185
 186       for (i = 0; i < N; ++i)
 187         if (pthread_join (th[i], NULL) != 0)
 188           {
 189             puts ("join failed");
 190             exit (1);
 191           }
 192     }
 193
 194   if (pthread_attr_destroy (&a) != 0)
 195     {
 196       puts ("attr_destroy failed");
 197       exit (1);
 198     }
 199
 200   return 0;
 201 }
 202
 203
 204 #define TIMEOUT 5
 205 #define TEST_FUNCTION do_test ()
 206 #include "../test-skeleton.c"