nptl/tst-stack1.c

   1 /* Copyright (C) 2002-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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 <limits.h>
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <sys/param.h>
  24 #include <unistd.h>
  25
  26
  27 static void *stack;
  28 static size_t size;
  29
  30
  31 static void *
  32 tf (void *a)
  33 {
  34   int result = 0;
  35
  36   puts ("child start");
  37
  38   pthread_attr_t attr;
  39   if (pthread_getattr_np (pthread_self (), &attr) != 0)
  40     {
  41       puts ("getattr_np failed");
  42       exit (1);
  43     }
  44
  45   size_t test_size;
  46   void *test_stack;
  47   if (pthread_attr_getstack (&attr, &test_stack, &test_size) != 0)
  48     {
  49       puts ("attr_getstack failed");
  50       exit (1);
  51     }
  52
  53   if (test_size != size)
  54     {
  55       printf ("child: reported size differs: is %zu, expected %zu\n",
  56               test_size, size);
  57       result = 1;
  58     }
  59
  60   if (test_stack != stack)
  61     {
  62       printf ("child: reported stack address differs: is %p, expected %p\n",
  63               test_stack, stack);
  64       result = 1;
  65     }
  66
  67   puts ("child OK");
  68
  69   return result ? (void *) 1l : NULL;
  70 }
  71
  72
  73 int
  74 do_test (void)
  75 {
  76   int result = 0;
  77
  78   size = MAX (4 * getpagesize (), PTHREAD_STACK_MIN);
  79   if (posix_memalign (&stack, getpagesize (), size) != 0)
  80     {
  81       puts ("out of memory while allocating the stack memory");
  82       exit (1);
  83     }
  84
  85   pthread_attr_t attr;
  86   if (pthread_attr_init (&attr) != 0)
  87     {
  88       puts ("attr_init failed");
  89       exit (1);
  90     }
  91
  92   puts ("attr_setstack");
  93   if (pthread_attr_setstack (&attr, stack, size) != 0)
  94     {
  95       puts ("attr_setstack failed");
  96       exit (1);
  97     }
  98
  99   size_t test_size;
 100   void *test_stack;
 101   puts ("attr_getstack");
 102   if (pthread_attr_getstack (&attr, &test_stack, &test_size) != 0)
 103     {
 104       puts ("attr_getstack failed");
 105       exit (1);
 106     }
 107
 108   if (test_size != size)
 109     {
 110       printf ("reported size differs: is %zu, expected %zu\n",
 111               test_size, size);
 112       result = 1;
 113     }
 114
 115   if (test_stack != stack)
 116     {
 117       printf ("reported stack address differs: is %p, expected %p\n",
 118               test_stack, stack);
 119       result = 1;
 120     }
 121
 122   puts ("create");
 123
 124   pthread_t th;
 125   if (pthread_create (&th, &attr, tf, NULL) != 0)
 126     {
 127       puts ("failed to create thread");
 128       exit (1);
 129     }
 130
 131   void *status;
 132   if (pthread_join (th, &status) != 0)
 133     {
 134       puts ("join failed");
 135       exit (1);
 136     }
 137
 138   result |= status != NULL;
 139
 140   return result;
 141 }
 142
 143
 144 #define TEST_FUNCTION do_test ()
 145 #include "../test-skeleton.c"