t_ifunc.c revision 314817 
1/*	$NetBSD: t_ifunc.c,v 1.2 2017/01/13 21:30:42 christos Exp $	*/
2
3/*
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/types.h>
31
32#include <atf-c.h>
33#include <dlfcn.h>
34#include <util.h>
35
36#include "h_macros.h"
37
38ATF_TC(rtld_ifunc);
39
40ATF_TC_HEAD(rtld_ifunc, tc)
41{
42	atf_tc_set_md_var(tc, "descr", "ifunc functions are resolved");
43}
44
45ATF_TC_BODY(rtld_ifunc, tc)
46{
47	const char *envstr[] = {
48	    "0", "1"
49	};
50	int expected_result[] = {
51	    0xdeadbeef, 0xbeefdead
52	};
53	void *handle;
54	int (*sym)(void);
55	int result;
56	const char *error;
57	size_t i;
58
59	for (i = 0; i < __arraycount(envstr); ++i) {
60		setenv("USE_IFUNC2", envstr[i], 1);
61
62		handle = dlopen("libh_helper_ifunc_dso.so", RTLD_LAZY);
63		error = dlerror();
64		ATF_CHECK(error == NULL);
65		ATF_CHECK(handle != NULL);
66
67		sym = dlsym(handle, "ifunc");
68		error = dlerror();
69		ATF_CHECK(error == NULL);
70		ATF_CHECK(sym != NULL);
71
72		result = (*sym)();
73		ATF_CHECK(result == expected_result[i]);
74
75		dlclose(handle);
76		error = dlerror();
77		ATF_CHECK(error == NULL);
78
79		char *command;
80		easprintf(&command, "%s/h_ifunc %d",
81		    atf_tc_get_config_var(tc, "srcdir"), expected_result[i]);
82		if (system(command) != EXIT_SUCCESS)
83			atf_tc_fail("Test failed; see output for details");
84		free(command);
85	}
86}
87
88ATF_TP_ADD_TCS(tp)
89{
90	ATF_TP_ADD_TC(tp, rtld_ifunc);
91	return 0;
92}
93