diff options
Diffstat (limited to 'roms/u-boot/cmd/stackprot_test.c')
-rw-r--r-- | roms/u-boot/cmd/stackprot_test.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/roms/u-boot/cmd/stackprot_test.c b/roms/u-boot/cmd/stackprot_test.c new file mode 100644 index 000000000..1e26193e8 --- /dev/null +++ b/roms/u-boot/cmd/stackprot_test.c @@ -0,0 +1,26 @@ +// 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", ""); |