1 /*
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (C) 2019 Andrew Gierth
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * Though this file is initially distributed under the 2-clause BSD license,
28 * the author grants permission for its redistribution under alternative
29 * licenses as set forth at <https://rhodiumtoad.github.io/RELICENSE.txt>.
30 * This paragraph and the RELICENSE.txt file are not part of the license and
31 * may be omitted in redistributions.
32 */
33
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <stdarg.h>
37 #include <string.h>
38 #include <unistd.h>
39 #include <dlfcn.h>
40
41 #include <atf-c.h>
42
43 typedef void (modfunc_t)(int op);
44
45 /*
46 * Minimal test case for PR 235158; mutual dependencies between jemalloc and
47 * libthr causing issues in thread creation. Specifically to this case, libthr
48 * uses calloc to initialize pthread mutexes, and jemalloc uses pthread mutexes.
49 *
50 * Deferred initialization provided by jemalloc proved to be fragile, causing
51 * issues like in the referenced PR where thread creation in a shared object
52 * loaded via dlopen(3) would stall unless the calling application also linked
53 * against pthread.
54 */
55 ATF_TC(maintc);
ATF_TC_HEAD(maintc,tc)56 ATF_TC_HEAD(maintc, tc)
57 {
58
59 atf_tc_set_md_var(tc, "timeout", "3");
60 }
61
ATF_TC_BODY(maintc,tc)62 ATF_TC_BODY(maintc, tc)
63 {
64 char *libpath;
65 modfunc_t *func;
66 void *mod_handle;
67 const char *srcdir;
68 dlfunc_t rawfunc;
69
70 srcdir = atf_tc_get_config_var(tc, "srcdir");
71 if (asprintf(&libpath, "%s/dynthr_mod.so", srcdir) < 0)
72 atf_tc_fail("failed to construct path to libthr");
73 mod_handle = dlopen(libpath, RTLD_LOCAL);
74 free(libpath);
75 if (mod_handle == NULL)
76 atf_tc_fail("failed to open dynthr_mod.so: %s", dlerror());
77 rawfunc = dlfunc(mod_handle, "mod_main");
78 if (rawfunc == NULL)
79 atf_tc_fail("failed to resolve function mod_main");
80 func = (modfunc_t *)rawfunc;
81 func(1);
82 func(0);
83 }
84
ATF_TP_ADD_TCS(tp)85 ATF_TP_ADD_TCS(tp)
86 {
87
88 ATF_TP_ADD_TC(tp, maintc);
89 return (atf_no_error());
90 }
91