lib/libc/picolibc/chk_fail.c

/*
 * Copyright © 2021, Keith Packard <keithp@keithp.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include "picolibc-hooks.h"

/* This function gets called if static buffer overflow detection is enabled on
 * stdlib side (Picolibc here), in case such an overflow is detected. Picolibc
 * provides an implementation not suitable for us, so we override it here.
 */
__weak FUNC_NORETURN void __chk_fail(void)
{
	printk("* buffer overflow detected *\n");
	z_except_reason(K_ERR_STACK_CHK_FAIL);
	CODE_UNREACHABLE;
}