nptl/tst-oddstacklimit.c

   1 /* Test NPTL with stack limit that is not a multiple of the page size.
   2    Copyright (C) 2012 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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 <errno.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <sys/resource.h>
  23 #include <sys/wait.h>
  24
  25 /* This sets the stack resource limit to 1023kb, which is not a multiple
  26    of the page size since every architecture's page size is > 1k.  */
  27 #ifndef ODD_STACK_LIMIT
  28 # define ODD_STACK_LIMIT (1023 * 1024)
  29 #endif
  30
  31 static const char *command;
  32
  33 static int
  34 do_test (void)
  35 {
  36   int ret;
  37   struct rlimit rlim;
  38
  39   ret = getrlimit (RLIMIT_STACK, &rlim);
  40   if (ret != 0)
  41     {
  42       printf ("getrlimit failed: %s\n", strerror (errno));
  43       return 1;
  44     }
  45   rlim.rlim_cur = ODD_STACK_LIMIT;
  46   ret = setrlimit (RLIMIT_STACK, &rlim);
  47   if (ret != 0)
  48     {
  49       printf ("setrlimit failed: %s\n", strerror (errno));
  50       return 1;
  51     }
  52   ret = system (command);
  53   if (ret == -1)
  54     {
  55       printf ("system failed: %s\n", strerror (errno));
  56       return 1;
  57     }
  58   if (WIFEXITED (ret))
  59     return WEXITSTATUS (ret);
  60   else
  61     return 1;
  62 }
  63
  64 #define OPT_COMMAND     10000
  65 #define CMDLINE_OPTIONS \
  66   { "command", required_argument, NULL, OPT_COMMAND },
  67 #define CMDLINE_PROCESS \
  68   case OPT_COMMAND:     \
  69     command = optarg;   \
  70     break;
  71 #define TEST_FUNCTION do_test ()
  72 #include "../test-skeleton.c"