xref: /minix3/tests/libexec/ld.elf_so/t_ifunc.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1*0a6a1f1dSLionel Sambuc /*	$NetBSD: t_ifunc.c,v 1.1 2014/08/25 20:40:53 joerg Exp $	*/
2*0a6a1f1dSLionel Sambuc 
3*0a6a1f1dSLionel Sambuc /*
4*0a6a1f1dSLionel Sambuc  * Copyright (c) 2014 The NetBSD Foundation, Inc.
5*0a6a1f1dSLionel Sambuc  * All rights reserved.
6*0a6a1f1dSLionel Sambuc  *
7*0a6a1f1dSLionel Sambuc  * Redistribution and use in source and binary forms, with or without
8*0a6a1f1dSLionel Sambuc  * modification, are permitted provided that the following conditions
9*0a6a1f1dSLionel Sambuc  * are met:
10*0a6a1f1dSLionel Sambuc  * 1. Redistributions of source code must retain the above copyright
11*0a6a1f1dSLionel Sambuc  *    notice, this list of conditions and the following disclaimer.
12*0a6a1f1dSLionel Sambuc  * 2. Redistributions in binary form must reproduce the above copyright
13*0a6a1f1dSLionel Sambuc  *    notice, this list of conditions and the following disclaimer in the
14*0a6a1f1dSLionel Sambuc  *    documentation and/or other materials provided with the distribution.
15*0a6a1f1dSLionel Sambuc  *
16*0a6a1f1dSLionel Sambuc  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17*0a6a1f1dSLionel Sambuc  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18*0a6a1f1dSLionel Sambuc  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19*0a6a1f1dSLionel Sambuc  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20*0a6a1f1dSLionel Sambuc  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21*0a6a1f1dSLionel Sambuc  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*0a6a1f1dSLionel Sambuc  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23*0a6a1f1dSLionel Sambuc  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24*0a6a1f1dSLionel Sambuc  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25*0a6a1f1dSLionel Sambuc  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26*0a6a1f1dSLionel Sambuc  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27*0a6a1f1dSLionel Sambuc  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*0a6a1f1dSLionel Sambuc  */
29*0a6a1f1dSLionel Sambuc 
30*0a6a1f1dSLionel Sambuc #include <sys/types.h>
31*0a6a1f1dSLionel Sambuc 
32*0a6a1f1dSLionel Sambuc #include <atf-c.h>
33*0a6a1f1dSLionel Sambuc #include <dlfcn.h>
34*0a6a1f1dSLionel Sambuc #include <util.h>
35*0a6a1f1dSLionel Sambuc 
36*0a6a1f1dSLionel Sambuc #include "../../h_macros.h"
37*0a6a1f1dSLionel Sambuc 
38*0a6a1f1dSLionel Sambuc ATF_TC(rtld_ifunc);
39*0a6a1f1dSLionel Sambuc 
ATF_TC_HEAD(rtld_ifunc,tc)40*0a6a1f1dSLionel Sambuc ATF_TC_HEAD(rtld_ifunc, tc)
41*0a6a1f1dSLionel Sambuc {
42*0a6a1f1dSLionel Sambuc 	atf_tc_set_md_var(tc, "descr", "ifunc functions are resolved");
43*0a6a1f1dSLionel Sambuc }
44*0a6a1f1dSLionel Sambuc 
ATF_TC_BODY(rtld_ifunc,tc)45*0a6a1f1dSLionel Sambuc ATF_TC_BODY(rtld_ifunc, tc)
46*0a6a1f1dSLionel Sambuc {
47*0a6a1f1dSLionel Sambuc 	const char *envstr[] = {
48*0a6a1f1dSLionel Sambuc 	    "0", "1"
49*0a6a1f1dSLionel Sambuc 	};
50*0a6a1f1dSLionel Sambuc 	int expected_result[] = {
51*0a6a1f1dSLionel Sambuc 	    0xdeadbeef, 0xbeefdead
52*0a6a1f1dSLionel Sambuc 	};
53*0a6a1f1dSLionel Sambuc 	void *handle;
54*0a6a1f1dSLionel Sambuc 	int (*sym)(void);
55*0a6a1f1dSLionel Sambuc 	int result;
56*0a6a1f1dSLionel Sambuc 	const char *error;
57*0a6a1f1dSLionel Sambuc 	size_t i;
58*0a6a1f1dSLionel Sambuc 
59*0a6a1f1dSLionel Sambuc 	for (i = 0; i < __arraycount(envstr); ++i) {
60*0a6a1f1dSLionel Sambuc 		setenv("USE_IFUNC2", envstr[i], 1);
61*0a6a1f1dSLionel Sambuc 
62*0a6a1f1dSLionel Sambuc 		handle = dlopen("libh_helper_ifunc_dso.so", RTLD_LAZY);
63*0a6a1f1dSLionel Sambuc 		error = dlerror();
64*0a6a1f1dSLionel Sambuc 		ATF_CHECK(error == NULL);
65*0a6a1f1dSLionel Sambuc 		ATF_CHECK(handle != NULL);
66*0a6a1f1dSLionel Sambuc 
67*0a6a1f1dSLionel Sambuc 		sym = dlsym(handle, "ifunc");
68*0a6a1f1dSLionel Sambuc 		error = dlerror();
69*0a6a1f1dSLionel Sambuc 		ATF_CHECK(error == NULL);
70*0a6a1f1dSLionel Sambuc 		ATF_CHECK(sym != NULL);
71*0a6a1f1dSLionel Sambuc 
72*0a6a1f1dSLionel Sambuc 		result = (*sym)();
73*0a6a1f1dSLionel Sambuc 		ATF_CHECK(result == expected_result[i]);
74*0a6a1f1dSLionel Sambuc 
75*0a6a1f1dSLionel Sambuc 		dlclose(handle);
76*0a6a1f1dSLionel Sambuc 		error = dlerror();
77*0a6a1f1dSLionel Sambuc 		ATF_CHECK(error == NULL);
78*0a6a1f1dSLionel Sambuc 
79*0a6a1f1dSLionel Sambuc 		char *command;
80*0a6a1f1dSLionel Sambuc 		easprintf(&command, "%s/h_ifunc %d",
81*0a6a1f1dSLionel Sambuc 		    atf_tc_get_config_var(tc, "srcdir"), expected_result[i]);
82*0a6a1f1dSLionel Sambuc 		if (system(command) != EXIT_SUCCESS)
83*0a6a1f1dSLionel Sambuc 			atf_tc_fail("Test failed; see output for details");
84*0a6a1f1dSLionel Sambuc 		free(command);
85*0a6a1f1dSLionel Sambuc 	}
86*0a6a1f1dSLionel Sambuc }
87*0a6a1f1dSLionel Sambuc 
ATF_TP_ADD_TCS(tp)88*0a6a1f1dSLionel Sambuc ATF_TP_ADD_TCS(tp)
89*0a6a1f1dSLionel Sambuc {
90*0a6a1f1dSLionel Sambuc 	ATF_TP_ADD_TC(tp, rtld_ifunc);
91*0a6a1f1dSLionel Sambuc 	return 0;
92*0a6a1f1dSLionel Sambuc }
93