gdb/testsuite/gdb.mi/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996-2015 Free Software Foundation, Inc.
   3
   4    Written by Keith Seitz of Red Hat.
   5    Copied from gdb.threads/pthreads.c.
   6    Contributed by Red Hat.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <pthread.h>
  26 #include <unistd.h>
  27
  28 /* Under HPUX 10, the second arg of pthread_create
  29    is prototyped to be just a "pthread_attr_t", while under Solaris it
  30    is a "pthread_attr_t *".  Arg! */
  31
  32 #if defined (__hpux__)
  33 #define PTHREAD_CREATE_ARG2(arg) arg
  34 #define PTHREAD_CREATE_NULL_ARG2 null_attr
  35 static pthread_attr_t null_attr;
  36 #else
  37 #define PTHREAD_CREATE_ARG2(arg) &arg
  38 #define PTHREAD_CREATE_NULL_ARG2 NULL
  39 #endif
  40
  41 void *
  42 routine (void *arg)
  43 {
  44   /* When gdb is running, it sets hidden breakpoints in the thread
  45      library.  The signals caused by these hidden breakpoints can
  46      cause system calls such as 'sleep' to return early.  Pay attention
  47      to the return value from 'sleep' to get the full sleep.  */
  48   int unslept = 9;
  49   while (unslept > 0)
  50     unslept = sleep (unslept);
  51
  52   printf ("hello thread\n");
  53 }
  54
  55 /* Marker function for the testsuite */
  56 void
  57 done_making_threads (void)
  58 {
  59   /* Nothing */
  60 }
  61
  62 void
  63 create_thread (void)
  64 {
  65   pthread_t tid;
  66
  67   if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
  68     {
  69       perror ("pthread_create 1");
  70       exit (1);
  71     }
  72 }
  73
  74 int
  75 main (int argc, char *argv[])
  76 {
  77   int i;
  78
  79   /* Create a few threads */
  80   for (i = 0; i < 5; i++)
  81     create_thread ();
  82   done_making_threads ();
  83
  84   printf ("hello\n");
  85   printf ("hello\n");
  86   return 0;
  87 }
  88