9303f81955
Submitted by: Andrew Gierth (original reproducer; kevans massaged for atf) Reviewed by: kib MFC after: 2 weeks X-MFC-with: r343566 (or after) Differential Revision: https://reviews.freebsd.org/D19027
94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (C) 2019 Andrew Gierth
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Though this file is initially distributed under the 2-clause BSD license,
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* the author grants permission for its redistribution under alternative
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* licenses as set forth at <https://rhodiumtoad.github.io/RELICENSE.txt>.
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* This paragraph and the RELICENSE.txt file are not part of the license and
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* may be omitted in redistributions.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <unistd.h>
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#include <dlfcn.h>
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#include <atf-c.h>
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typedef void (modfunc_t)(int op);
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/*
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* Minimal test case for PR 235158; mutual dependencies between jemalloc and
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* libthr causing issues in thread creation. Specifically to this case, libthr
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* uses calloc to initialize pthread mutexes, and jemalloc uses pthread mutexes.
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*
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* Deferred initialization provided by jemalloc proved to be fragile, causing
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* issues like in the referenced PR where thread creation in a shared object
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* loaded via dlopen(3) would stall unless the calling application also linked
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* against pthread.
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*/
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ATF_TC(maintc);
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ATF_TC_HEAD(maintc, tc)
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{
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atf_tc_set_md_var(tc, "timeout", "3");
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}
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ATF_TC_BODY(maintc, tc)
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{
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char *libpath;
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modfunc_t *func;
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void *mod_handle;
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const char *srcdir;
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dlfunc_t rawfunc;
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srcdir = atf_tc_get_config_var(tc, "srcdir");
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if (asprintf(&libpath, "%s/dynthr_mod.so", srcdir) < 0)
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atf_tc_fail("failed to construct path to libthr");
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mod_handle = dlopen(libpath, RTLD_LOCAL);
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free(libpath);
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if (mod_handle == NULL)
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atf_tc_fail("failed to open dynthr_mod.so: %s", dlerror());
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rawfunc = dlfunc(mod_handle, "mod_main");
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if (rawfunc == NULL)
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atf_tc_fail("failed to resolve function mod_main");
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func = (modfunc_t *)rawfunc;
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func(1);
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func(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, maintc);
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return (atf_no_error());
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}
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