1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2018 John H. Baldwin <jhb@FreeBSD.org> 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <atf-c.h> 33 #include <ucontext.h> 34 35 static char uc_stack[16 * 1024]; 36 37 static void 38 check_1(int arg1) 39 { 40 41 ATF_REQUIRE_EQ(arg1, 1); 42 } 43 44 ATF_TC_WITHOUT_HEAD(makecontext_arg1); 45 ATF_TC_BODY(makecontext_arg1, tc) 46 { 47 ucontext_t ctx[2]; 48 49 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 50 ctx[1].uc_stack.ss_sp = uc_stack; 51 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 52 ctx[1].uc_link = &ctx[0]; 53 makecontext(&ctx[1], (void (*)(void))check_1, 1, 1); 54 55 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 56 } 57 58 static void 59 check_2(int arg1, int arg2) 60 { 61 62 ATF_REQUIRE_EQ(arg1, 1); 63 ATF_REQUIRE_EQ(arg2, 2); 64 } 65 66 ATF_TC_WITHOUT_HEAD(makecontext_arg2); 67 ATF_TC_BODY(makecontext_arg2, tc) 68 { 69 ucontext_t ctx[2]; 70 71 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 72 ctx[1].uc_stack.ss_sp = uc_stack; 73 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 74 ctx[1].uc_link = &ctx[0]; 75 makecontext(&ctx[1], (void (*)(void))check_2, 2, 1, 2); 76 77 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 78 } 79 80 static void 81 check_3(int arg1, int arg2, int arg3) 82 { 83 84 ATF_REQUIRE_EQ(arg1, 1); 85 ATF_REQUIRE_EQ(arg2, 2); 86 ATF_REQUIRE_EQ(arg3, 3); 87 } 88 89 ATF_TC_WITHOUT_HEAD(makecontext_arg3); 90 ATF_TC_BODY(makecontext_arg3, tc) 91 { 92 ucontext_t ctx[2]; 93 94 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 95 ctx[1].uc_stack.ss_sp = uc_stack; 96 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 97 ctx[1].uc_link = &ctx[0]; 98 makecontext(&ctx[1], (void (*)(void))check_3, 3, 1, 2, 3); 99 100 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 101 } 102 103 static void 104 check_4(int arg1, int arg2, int arg3, int arg4) 105 { 106 107 ATF_REQUIRE_EQ(arg1, 1); 108 ATF_REQUIRE_EQ(arg2, 2); 109 ATF_REQUIRE_EQ(arg3, 3); 110 ATF_REQUIRE_EQ(arg4, 4); 111 } 112 113 ATF_TC_WITHOUT_HEAD(makecontext_arg4); 114 ATF_TC_BODY(makecontext_arg4, tc) 115 { 116 ucontext_t ctx[2]; 117 118 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 119 ctx[1].uc_stack.ss_sp = uc_stack; 120 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 121 ctx[1].uc_link = &ctx[0]; 122 makecontext(&ctx[1], (void (*)(void))check_4, 4, 1, 2, 3, 4); 123 124 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 125 } 126 127 static void 128 check_5(int arg1, int arg2, int arg3, int arg4, int arg5) 129 { 130 131 ATF_REQUIRE_EQ(arg1, 1); 132 ATF_REQUIRE_EQ(arg2, 2); 133 ATF_REQUIRE_EQ(arg3, 3); 134 ATF_REQUIRE_EQ(arg4, 4); 135 ATF_REQUIRE_EQ(arg5, 5); 136 } 137 138 ATF_TC_WITHOUT_HEAD(makecontext_arg5); 139 ATF_TC_BODY(makecontext_arg5, tc) 140 { 141 ucontext_t ctx[2]; 142 143 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 144 ctx[1].uc_stack.ss_sp = uc_stack; 145 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 146 ctx[1].uc_link = &ctx[0]; 147 makecontext(&ctx[1], (void (*)(void))check_5, 5, 1, 2, 3, 4, 5); 148 149 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 150 } 151 152 static void 153 check_6(int arg1, int arg2, int arg3, int arg4, int arg5, int arg6) 154 { 155 156 ATF_REQUIRE_EQ(arg1, 1); 157 ATF_REQUIRE_EQ(arg2, 2); 158 ATF_REQUIRE_EQ(arg3, 3); 159 ATF_REQUIRE_EQ(arg4, 4); 160 ATF_REQUIRE_EQ(arg5, 5); 161 ATF_REQUIRE_EQ(arg6, 6); 162 } 163 164 ATF_TC_WITHOUT_HEAD(makecontext_arg6); 165 ATF_TC_BODY(makecontext_arg6, tc) 166 { 167 ucontext_t ctx[2]; 168 169 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 170 ctx[1].uc_stack.ss_sp = uc_stack; 171 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 172 ctx[1].uc_link = &ctx[0]; 173 makecontext(&ctx[1], (void (*)(void))check_6, 6, 1, 2, 3, 4, 5, 6); 174 175 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 176 } 177 178 ATF_TP_ADD_TCS(tp) 179 { 180 181 ATF_TP_ADD_TC(tp, makecontext_arg1); 182 ATF_TP_ADD_TC(tp, makecontext_arg2); 183 ATF_TP_ADD_TC(tp, makecontext_arg3); 184 ATF_TP_ADD_TC(tp, makecontext_arg4); 185 ATF_TP_ADD_TC(tp, makecontext_arg5); 186 ATF_TP_ADD_TC(tp, makecontext_arg6); 187 188 return (atf_no_error()); 189 } 190