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t_tls_extern.c revision 1.5 
      1 /*	$NetBSD: t_tls_extern.c,v 1.5 2023/06/01 22:24:52 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2023 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 CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/types.h>
     30 
     31 #include <atf-c.h>
     32 #include <dlfcn.h>
     33 
     34 #define	ATF_REQUIRE_DL(x)	ATF_REQUIRE_MSG(x, "%s: %s", #x, dlerror())
     35 
     36 enum order {
     37 	DEF_USE,
     38 	USE_DEF,
     39 	USE_DEF_NOLOAD,
     40 };
     41 
     42 static void
     43 tls_extern(const char *libdef, const char *libuse, enum order order,
     44     bool xfail)
     45 {
     46 	void *def, *use;
     47 	int *(*fdef)(void), *(*fuse)(void);
     48 	int *pdef, *puse;
     49 
     50 	(void)dlerror();
     51 
     52 	switch (order) {
     53 	case DEF_USE:
     54 		ATF_REQUIRE_DL(def = dlopen(libdef, 0));
     55 		ATF_REQUIRE_DL(use = dlopen(libuse, 0));
     56 		break;
     57 	case USE_DEF:
     58 		ATF_REQUIRE_DL(use = dlopen(libuse, 0));
     59 		ATF_REQUIRE_DL(def = dlopen(libdef, 0));
     60 		break;
     61 	case USE_DEF_NOLOAD:
     62 		ATF_REQUIRE_DL(use = dlopen(libuse, 0));
     63 		ATF_REQUIRE_DL(def = dlopen(libdef, RTLD_NOLOAD));
     64 		break;
     65 	}
     66 
     67 	ATF_REQUIRE_DL(fdef = dlsym(def, "fdef"));
     68 	ATF_REQUIRE_DL(fuse = dlsym(use, "fuse"));
     69 
     70 	pdef = (*fdef)();
     71 	puse = (*fuse)();
     72 	if (xfail) {
     73 		atf_tc_expect_fail("PR toolchain/50277:"
     74 		    " rtld relocation bug with thread local storage");
     75 	}
     76 	ATF_CHECK_EQ_MSG(pdef, puse,
     77 	    "%p in defining library != %p in using library",
     78 	    pdef, puse);
     79 }
     80 
     81 ATF_TC(tls_extern_dynamic_defuse);
     82 ATF_TC_HEAD(tls_extern_dynamic_defuse, tc)
     83 {
     84 	atf_tc_set_md_var(tc, "descr", "extern __thread for dynamic TLS works,"
     85 	    " loading def then use");
     86 }
     87 ATF_TC_BODY(tls_extern_dynamic_defuse, tc)
     88 {
     89 	tls_extern("libh_def_dynamic.so", "libh_use_dynamic.so",
     90 	    DEF_USE, /*xfail*/false);
     91 }
     92 
     93 ATF_TC(tls_extern_dynamic_usedef);
     94 ATF_TC_HEAD(tls_extern_dynamic_usedef, tc)
     95 {
     96 	atf_tc_set_md_var(tc, "descr", "extern __thread for dynamic TLS works,"
     97 	    " loading use then def");
     98 }
     99 ATF_TC_BODY(tls_extern_dynamic_usedef, tc)
    100 {
    101 	tls_extern("libh_def_dynamic.so", "libh_use_dynamic.so",
    102 	    USE_DEF, /*xfail*/false);
    103 }
    104 
    105 ATF_TC(tls_extern_dynamic_usedefnoload);
    106 ATF_TC_HEAD(tls_extern_dynamic_usedefnoload, tc)
    107 {
    108 	atf_tc_set_md_var(tc, "descr", "extern __thread for dynamic TLS works,"
    109 	    " loading use then def with RTLD_NOLOAD");
    110 }
    111 ATF_TC_BODY(tls_extern_dynamic_usedefnoload, tc)
    112 {
    113 	tls_extern("libh_def_dynamic.so", "libh_use_dynamic.so",
    114 	    USE_DEF_NOLOAD, /*xfail*/false);
    115 }
    116 
    117 ATF_TC(tls_extern_static_defuse);
    118 ATF_TC_HEAD(tls_extern_static_defuse, tc)
    119 {
    120 	atf_tc_set_md_var(tc, "descr", "extern __thread for static TLS works,"
    121 	    " loading def then use");
    122 }
    123 ATF_TC_BODY(tls_extern_static_defuse, tc)
    124 {
    125 	tls_extern("libh_def_static.so", "libh_use_static.so",
    126 	    DEF_USE, /*xfail*/false);
    127 }
    128 
    129 ATF_TC(tls_extern_static_usedef);
    130 ATF_TC_HEAD(tls_extern_static_usedef, tc)
    131 {
    132 	atf_tc_set_md_var(tc, "descr", "extern __thread for static TLS works,"
    133 	    " loading use then def");
    134 }
    135 ATF_TC_BODY(tls_extern_static_usedef, tc)
    136 {
    137 	tls_extern("libh_def_static.so", "libh_use_static.so",
    138 	    USE_DEF, /*xfail*/true);
    139 }
    140 
    141 ATF_TC(tls_extern_static_usedefnoload);
    142 ATF_TC_HEAD(tls_extern_static_usedefnoload, tc)
    143 {
    144 	atf_tc_set_md_var(tc, "descr", "extern __thread for static TLS works,"
    145 	    " loading use then def with RTLD_NOLOAD");
    146 }
    147 ATF_TC_BODY(tls_extern_static_usedefnoload, tc)
    148 {
    149 	tls_extern("libh_def_static.so", "libh_use_static.so",
    150 	    USE_DEF_NOLOAD, /*xfail*/true);
    151 }
    152 
    153 ATF_TP_ADD_TCS(tp)
    154 {
    155 
    156 	ATF_TP_ADD_TC(tp, tls_extern_dynamic_defuse);
    157 	ATF_TP_ADD_TC(tp, tls_extern_dynamic_usedef);
    158 	ATF_TP_ADD_TC(tp, tls_extern_dynamic_usedefnoload);
    159 	ATF_TP_ADD_TC(tp, tls_extern_static_defuse);
    160 	ATF_TP_ADD_TC(tp, tls_extern_static_usedef);
    161 	ATF_TP_ADD_TC(tp, tls_extern_static_usedefnoload);
    162 	return atf_no_error();
    163 }
    164