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 38 ATF_TC(rtld_ifunc); 39 40 ATF_TC_HEAD(rtld_ifunc, tc) 41 { 42 atf_tc_set_md_var(tc, "descr", "ifunc functions are resolved"); 43 } 44 45 ATF_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 88 ATF_TP_ADD_TCS(tp) 89 { 90 ATF_TP_ADD_TC(tp, rtld_ifunc); 91 return 0; 92 } 93