Date: Tue, 03 Sep 2019 14:06:29 -0000 From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r346040 - in stable/12/lib/libc/tests/stdlib: . dynthr_mod Message-ID: <201904081834.x38IYiTD059874@repo.freebsd.org>
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Author: kevans Date: Mon Apr 8 18:34:43 2019 New Revision: 346040 URL: https://svnweb.freebsd.org/changeset/base/346040 Log: MFC r343599: libc/tests: Add test case for jemalloc/libthr bug fixed/r343566 Added: stable/12/lib/libc/tests/stdlib/dynthr_mod/ - copied from r343599, head/lib/libc/tests/stdlib/dynthr_mod/ stable/12/lib/libc/tests/stdlib/dynthr_test.c - copied unchanged from r343599, head/lib/libc/tests/stdlib/dynthr_test.c Modified: stable/12/lib/libc/tests/stdlib/Makefile Directory Properties: stable/12/ (props changed) Modified: stable/12/lib/libc/tests/stdlib/Makefile ============================================================================== --- stable/12/lib/libc/tests/stdlib/Makefile Mon Apr 8 18:25:14 2019 (r346039) +++ stable/12/lib/libc/tests/stdlib/Makefile Mon Apr 8 18:34:43 2019 (r346040) @@ -2,6 +2,7 @@ .include <src.opts.mk> +ATF_TESTS_C+= dynthr_test ATF_TESTS_C+= heapsort_test ATF_TESTS_C+= mergesort_test ATF_TESTS_C+= qsort_test @@ -60,5 +61,7 @@ LIBADD.${t}+= netbsd util .endfor LIBADD.strtod_test+= m + +SUBDIR+= dynthr_mod .include <bsd.test.mk> Copied: stable/12/lib/libc/tests/stdlib/dynthr_test.c (from r343599, head/lib/libc/tests/stdlib/dynthr_test.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ stable/12/lib/libc/tests/stdlib/dynthr_test.c Mon Apr 8 18:34:43 2019 (r346040, copy of r343599, head/lib/libc/tests/stdlib/dynthr_test.c) @@ -0,0 +1,93 @@ +/* + * 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#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()); +}
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