[J-u-boot.git] / cmd / stackprot_test.c

// SPDX-License-Identifier: GPL-2.0+
/*
 *  Copyright 2021 Broadcom
 */

#include <common.h>
#include <command.h>

static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
				  char *const argv[])
{
	/*
	 * In order to avoid having the compiler optimize away the stack smashing
	 * we need to do a little something here.
	 */
	char a[128];

	memset(a, 0xa5, 512);

	printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %ld\n", strlen(a));

	return 0;
}

U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
	   "test stack protector fail", "");
Commit	Line	Data
4e9bce12 JP	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright 2021 Broadcom
	4	*/
	5
	6	#include <common.h>
	7	#include <command.h>
	8
	9	static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
	10	char *const argv[])
	11	{
2fc62f29 TR	12	/*
	13	* In order to avoid having the compiler optimize away the stack smashing
	14	* we need to do a little something here.
	15	*/
4e9bce12 JP	16	char a[128];
	17
	18	memset(a, 0xa5, 512);
2fc62f29 TR	19
	20	printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %ld\n", strlen(a));
	21
4e9bce12 JP	22	return 0;
	23	}
	24
	25	U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
	26	"test stack protector fail", "");