mirror of
https://github.com/opnsense/src.git
synced 2026-02-23 01:46:42 -05:00
a7b90458a2
dlopen_basic just tests that libthr.so can be dlopen()ed, which will
just serve as a sanity check that "libthr.so" is a thing that can be
dlopened in case we get a weird failure in dlopen_recursing.
dlopen_recursing tests a regression reported after the libsys split,
where some dlopen() may cause infinite recursion and a resulting crash.
This case is inspired by bdrewery's description of what seemed to be
causing his issue.
The corresponding fix landed in commit
968a18975ad ("rtld: ignore load_filtees() calls if we already [...]")
Reviewed by: kib
(cherry picked from commit c5796f1572c82b88e8b6a2810c92f30e5ac3e118)
52 lines
873 B
C
52 lines
873 B
C
/*-
|
|
*
|
|
* Copyright (C) 2024 Kyle Evans <kevans@FreeBSD.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
*/
|
|
|
|
#include <dlfcn.h>
|
|
|
|
#include <atf-c.h>
|
|
|
|
ATF_TC_WITHOUT_HEAD(dlopen_basic);
|
|
ATF_TC_BODY(dlopen_basic, tc)
|
|
{
|
|
void *hdl, *sym;
|
|
|
|
hdl = dlopen("libthr.so", RTLD_NOW);
|
|
ATF_REQUIRE(hdl != NULL);
|
|
|
|
sym = dlsym(hdl, "pthread_create");
|
|
ATF_REQUIRE(sym != NULL);
|
|
|
|
dlclose(hdl);
|
|
|
|
sym = dlsym(hdl, "pthread_create");
|
|
ATF_REQUIRE(sym == NULL);
|
|
}
|
|
|
|
ATF_TC_WITHOUT_HEAD(dlopen_recursing);
|
|
ATF_TC_BODY(dlopen_recursing, tc)
|
|
{
|
|
void *hdl;
|
|
|
|
/*
|
|
* If this doesn't crash, we're OK; a regression at one point caused
|
|
* some infinite recursion here.
|
|
*/
|
|
hdl = dlopen("libthr.so", RTLD_NOW | RTLD_GLOBAL);
|
|
ATF_REQUIRE(hdl != NULL);
|
|
|
|
dlclose(hdl);
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
|
|
ATF_TP_ADD_TC(tp, dlopen_basic);
|
|
ATF_TP_ADD_TC(tp, dlopen_recursing);
|
|
|
|
return atf_no_error();
|
|
}
|