gdb/testsuite/gdb.mi/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996, 2002, 2003, 2004, 2007 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 2 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, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <pthread.h>
  28
  29 /* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
  30    is prototyped to be just a "pthread_attr_t", while under Solaris it
  31    is a "pthread_attr_t *".  Arg! */
  32
  33 #if defined (__osf__) || defined (__hpux__)
  34 #define PTHREAD_CREATE_ARG2(arg) arg
  35 #define PTHREAD_CREATE_NULL_ARG2 null_attr
  36 static pthread_attr_t null_attr;
  37 #else
  38 #define PTHREAD_CREATE_ARG2(arg) &arg
  39 #define PTHREAD_CREATE_NULL_ARG2 NULL
  40 #endif
  41
  42 void *
  43 routine (void *arg)
  44 {
  45   /* When gdb is running, it sets hidden breakpoints in the thread
  46      library.  The signals caused by these hidden breakpoints can
  47      cause system calls such as 'sleep' to return early.  Pay attention
  48      to the return value from 'sleep' to get the full sleep.  */
  49   int unslept = 9;
  50   while (unslept > 0)
  51     unslept = sleep (unslept);
  52
  53   printf ("hello thread\n");
  54 }
  55
  56 /* Marker function for the testsuite */
  57 void
  58 done_making_threads (void)
  59 {
  60   /* Nothing */
  61 }
  62
  63 void
  64 create_thread (void)
  65 {
  66   pthread_t tid;
  67
  68   if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
  69     {
  70       perror ("pthread_create 1");
  71       exit (1);
  72     }
  73 }
  74
  75 int
  76 main (int argc, char *argv[])
  77 {
  78   int i;
  79
  80   /* Create a few threads */
  81   for (i = 0; i < 5; i++)
  82     create_thread ();
  83   done_making_threads ();
  84
  85   printf ("hello\n");
  86   printf ("hello\n");
  87   return 0;
  88 }
  89