gdb/testsuite/gdb.mi/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996-2013 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
  27 /* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
  28    is prototyped to be just a "pthread_attr_t", while under Solaris it
  29    is a "pthread_attr_t *".  Arg! */
  30
  31 #if defined (__osf__) || defined (__hpux__)
  32 #define PTHREAD_CREATE_ARG2(arg) arg
  33 #define PTHREAD_CREATE_NULL_ARG2 null_attr
  34 static pthread_attr_t null_attr;
  35 #else
  36 #define PTHREAD_CREATE_ARG2(arg) &arg
  37 #define PTHREAD_CREATE_NULL_ARG2 NULL
  38 #endif
  39
  40 void *
  41 routine (void *arg)
  42 {
  43   /* When gdb is running, it sets hidden breakpoints in the thread
  44      library.  The signals caused by these hidden breakpoints can
  45      cause system calls such as 'sleep' to return early.  Pay attention
  46      to the return value from 'sleep' to get the full sleep.  */
  47   int unslept = 9;
  48   while (unslept > 0)
  49     unslept = sleep (unslept);
  50
  51   printf ("hello thread\n");
  52 }
  53
  54 /* Marker function for the testsuite */
  55 void
  56 done_making_threads (void)
  57 {
  58   /* Nothing */
  59 }
  60
  61 void
  62 create_thread (void)
  63 {
  64   pthread_t tid;
  65
  66   if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
  67     {
  68       perror ("pthread_create 1");
  69       exit (1);
  70     }
  71 }
  72
  73 int
  74 main (int argc, char *argv[])
  75 {
  76   int i;
  77
  78   /* Create a few threads */
  79   for (i = 0; i < 5; i++)
  80     create_thread ();
  81   done_making_threads ();
  82
  83   printf ("hello\n");
  84   printf ("hello\n");
  85   return 0;
  86 }
  87