stack_dt_need_exec_test.c

/*-
 * Copyright (c) 2023 Dmitry Chagin <[email protected]>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <sys/systm.h>
#include <vm/vm_param.h>

#include <atf-c.h>

extern int checkstack(void);

static int jumpstack0(void) __noinline;
static int jumpstack1(void) __noinline;


static int
jumpstack0(void)
{
	char stack[SGROWSIZ];

	explicit_bzero(stack, sizeof(stack));
	return (checkstack());
}

static int
jumpstack1(void)
{
	char stack[SGROWSIZ * 2];

	explicit_bzero(stack, sizeof(stack));
	return (checkstack());
}

ATF_TC_WITHOUT_HEAD(dt_need_test);
ATF_TC_BODY(dt_need_test, tc)
{

	ATF_REQUIRE(jumpstack0() == 0);
	ATF_REQUIRE(jumpstack1() == 0);
}

ATF_TP_ADD_TCS(tp)
{

	ATF_TP_ADD_TC(tp, dt_need_test);

	return (atf_no_error());
}