many-headers.c revision 1.1.1.2
1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2018-2020 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program 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 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18#include <stdio.h> 19#include <malloc.h> 20#include <sys/mman.h> 21 22int 23main (void) 24{ 25 char *ptr; 26 int ind, cnt; 27 28 cnt = 100000; 29 for (ind = 0; ind < cnt; ind++) 30 { 31 ptr = mmap (NULL, 100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); 32 if (ptr == NULL) 33 { 34 fprintf (stderr, "Error allocating memory using mmap\n"); 35 return -1; 36 } 37 38 ptr = mmap (NULL, 100, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); 39 if (ptr == NULL) 40 { 41 fprintf (stderr, "Error allocating memory using mmap\n"); 42 return -1; 43 } 44 } 45 46 ptr = NULL; 47 *ptr = '\0'; 48 49 return 0; 50} 51