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/*-
* Copyright (c) 2023 Dmitry Chagin <dchagin@FreeBSD.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <sys/systm.h>
#include <vm/vm_param.h>
#include <atf-c.h>
#include <dlfcn.h>
static int jumpstack0(void) __noinline;
static int jumpstack1(void) __noinline;
static int (*socheckstack)(void) = NULL;
static int
checkstack(void)
{
void *fh;
if (socheckstack == NULL) {
fh = dlopen("libsoxstack.so", RTLD_LAZY);
ATF_REQUIRE(fh != NULL);
socheckstack = dlsym(fh, "checkstack");
ATF_REQUIRE(socheckstack != NULL);
}
return (socheckstack());
}
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(dlopen_test);
ATF_TC_BODY(dlopen_test, tc)
{
ATF_REQUIRE(jumpstack0() == 0);
ATF_REQUIRE(jumpstack1() == 0);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, dlopen_test);
return (atf_no_error());
}
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