malloc/tst-pvalloc.c

   1 /* Copyright (C) 2013 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <malloc.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <unistd.h>
  23
  24 static int errors = 0;
  25
  26 static void
  27 merror (const char *msg)
  28 {
  29   ++errors;
  30   printf ("Error: %s\n", msg);
  31 }
  32
  33 static int
  34 do_test (void)
  35 {
  36   void *p;
  37   unsigned long pagesize = getpagesize();
  38   unsigned long ptrval;
  39   int save;
  40
  41   errno = 0;
  42
  43   p = pvalloc (-1);
  44
  45   save = errno;
  46
  47   if (p != NULL)
  48     merror ("pvalloc (-1) succeeded.");
  49
  50   if (p == NULL && save != ENOMEM)
  51     merror ("pvalloc (-1) errno is not set correctly");
  52
  53   errno = 0;
  54
  55   p = pvalloc (-pagesize);
  56
  57   save = errno;
  58
  59   if (p != NULL)
  60     merror ("pvalloc (-pagesize) succeeded.");
  61
  62   if (p == NULL && save != ENOMEM)
  63     merror ("pvalloc (-pagesize) errno is not set correctly");
  64
  65   p = pvalloc (0);
  66
  67   if (p == NULL)
  68     merror ("pvalloc (0) failed.");
  69
  70   free (p);
  71
  72   p = pvalloc (32);
  73
  74   if (p == NULL)
  75     merror ("pvalloc (32) failed.");
  76
  77   ptrval = (unsigned long)p;
  78
  79   if (p == NULL)
  80     merror ("pvalloc (32) failed.");
  81
  82   if ((ptrval & (pagesize - 1)) != 0)
  83     merror ("returned pointer is not page aligned.");
  84
  85   free (p);
  86
  87   return errors != 0;
  88 }
  89
  90 #define TEST_FUNCTION do_test ()
  91 #include "../test-skeleton.c"