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