LXR uboot/cmd/stackprot

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 *  Copyright 2021 Broadcom
   4 */
   5
   6#include <common.h>
   7#include <command.h>
   8
   9static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
  10                                  char *const argv[])
  11{
  12        /*
  13         * In order to avoid having the compiler optimize away the stack smashing
  14         * we need to do a little something here.
  15         */
  16        char a[128];
  17
  18        memset(a, 0xa5, 512);
  19
  20        printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %ld\n", strlen(a));
  21
  22        return 0;
  23}
  24
  25U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
  26           "test stack protector fail", "");
  27