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8920c5f2a1
Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D41320 MFC after: 2 weeks
64 lines
1 KiB
C
64 lines
1 KiB
C
/*-
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* Copyright (c) 2023 Dmitry Chagin <dchagin@FreeBSD.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <sys/systm.h>
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#include <vm/vm_param.h>
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#include <atf-c.h>
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#include <dlfcn.h>
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static int jumpstack0(void) __noinline;
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static int jumpstack1(void) __noinline;
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static int (*socheckstack)(void) = NULL;
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static int
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checkstack(void)
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{
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void *fh;
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if (socheckstack == NULL) {
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fh = dlopen("libsoxstack.so", RTLD_LAZY);
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ATF_REQUIRE(fh != NULL);
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socheckstack = dlsym(fh, "checkstack");
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ATF_REQUIRE(socheckstack != NULL);
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}
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return (socheckstack());
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}
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static int
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jumpstack0(void)
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{
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char stack[SGROWSIZ];
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explicit_bzero(stack, sizeof(stack));
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return (checkstack());
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}
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static int
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jumpstack1(void)
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{
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char stack[SGROWSIZ * 2];
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explicit_bzero(stack, sizeof(stack));
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return (checkstack());
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}
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ATF_TC_WITHOUT_HEAD(dlopen_test);
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ATF_TC_BODY(dlopen_test, tc)
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{
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ATF_REQUIRE(jumpstack0() == 0);
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ATF_REQUIRE(jumpstack1() == 0);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, dlopen_test);
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return (atf_no_error());
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}
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