1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2018 John H. Baldwin <jhb@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 #include <atf-c.h> 30 #include <ucontext.h> 31 32 static char uc_stack[16 * 1024]; 33 34 static void 35 check_1(int arg1) 36 { 37 38 ATF_REQUIRE_EQ(arg1, 1); 39 } 40 41 ATF_TC_WITHOUT_HEAD(makecontext_arg1); 42 ATF_TC_BODY(makecontext_arg1, tc) 43 { 44 ucontext_t ctx[2]; 45 46 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 47 ctx[1].uc_stack.ss_sp = uc_stack; 48 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 49 ctx[1].uc_link = &ctx[0]; 50 makecontext(&ctx[1], (void (*)(void))check_1, 1, 1); 51 52 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 53 } 54 55 static void 56 check_2(int arg1, int arg2) 57 { 58 59 ATF_REQUIRE_EQ(arg1, 1); 60 ATF_REQUIRE_EQ(arg2, 2); 61 } 62 63 ATF_TC_WITHOUT_HEAD(makecontext_arg2); 64 ATF_TC_BODY(makecontext_arg2, tc) 65 { 66 ucontext_t ctx[2]; 67 68 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 69 ctx[1].uc_stack.ss_sp = uc_stack; 70 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 71 ctx[1].uc_link = &ctx[0]; 72 makecontext(&ctx[1], (void (*)(void))check_2, 2, 1, 2); 73 74 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 75 } 76 77 static void 78 check_3(int arg1, int arg2, int arg3) 79 { 80 81 ATF_REQUIRE_EQ(arg1, 1); 82 ATF_REQUIRE_EQ(arg2, 2); 83 ATF_REQUIRE_EQ(arg3, 3); 84 } 85 86 ATF_TC_WITHOUT_HEAD(makecontext_arg3); 87 ATF_TC_BODY(makecontext_arg3, tc) 88 { 89 ucontext_t ctx[2]; 90 91 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 92 ctx[1].uc_stack.ss_sp = uc_stack; 93 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 94 ctx[1].uc_link = &ctx[0]; 95 makecontext(&ctx[1], (void (*)(void))check_3, 3, 1, 2, 3); 96 97 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 98 } 99 100 static void 101 check_4(int arg1, int arg2, int arg3, int arg4) 102 { 103 104 ATF_REQUIRE_EQ(arg1, 1); 105 ATF_REQUIRE_EQ(arg2, 2); 106 ATF_REQUIRE_EQ(arg3, 3); 107 ATF_REQUIRE_EQ(arg4, 4); 108 } 109 110 ATF_TC_WITHOUT_HEAD(makecontext_arg4); 111 ATF_TC_BODY(makecontext_arg4, tc) 112 { 113 ucontext_t ctx[2]; 114 115 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 116 ctx[1].uc_stack.ss_sp = uc_stack; 117 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 118 ctx[1].uc_link = &ctx[0]; 119 makecontext(&ctx[1], (void (*)(void))check_4, 4, 1, 2, 3, 4); 120 121 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 122 } 123 124 static void 125 check_5(int arg1, int arg2, int arg3, int arg4, int arg5) 126 { 127 128 ATF_REQUIRE_EQ(arg1, 1); 129 ATF_REQUIRE_EQ(arg2, 2); 130 ATF_REQUIRE_EQ(arg3, 3); 131 ATF_REQUIRE_EQ(arg4, 4); 132 ATF_REQUIRE_EQ(arg5, 5); 133 } 134 135 ATF_TC_WITHOUT_HEAD(makecontext_arg5); 136 ATF_TC_BODY(makecontext_arg5, tc) 137 { 138 ucontext_t ctx[2]; 139 140 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 141 ctx[1].uc_stack.ss_sp = uc_stack; 142 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 143 ctx[1].uc_link = &ctx[0]; 144 makecontext(&ctx[1], (void (*)(void))check_5, 5, 1, 2, 3, 4, 5); 145 146 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 147 } 148 149 static void 150 check_6(int arg1, int arg2, int arg3, int arg4, int arg5, int arg6) 151 { 152 153 ATF_REQUIRE_EQ(arg1, 1); 154 ATF_REQUIRE_EQ(arg2, 2); 155 ATF_REQUIRE_EQ(arg3, 3); 156 ATF_REQUIRE_EQ(arg4, 4); 157 ATF_REQUIRE_EQ(arg5, 5); 158 ATF_REQUIRE_EQ(arg6, 6); 159 } 160 161 ATF_TC_WITHOUT_HEAD(makecontext_arg6); 162 ATF_TC_BODY(makecontext_arg6, tc) 163 { 164 ucontext_t ctx[2]; 165 166 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 167 ctx[1].uc_stack.ss_sp = uc_stack; 168 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 169 ctx[1].uc_link = &ctx[0]; 170 makecontext(&ctx[1], (void (*)(void))check_6, 6, 1, 2, 3, 4, 5, 6); 171 172 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 173 } 174 175 ATF_TP_ADD_TCS(tp) 176 { 177 178 ATF_TP_ADD_TC(tp, makecontext_arg1); 179 ATF_TP_ADD_TC(tp, makecontext_arg2); 180 ATF_TP_ADD_TC(tp, makecontext_arg3); 181 ATF_TP_ADD_TC(tp, makecontext_arg4); 182 ATF_TP_ADD_TC(tp, makecontext_arg5); 183 ATF_TP_ADD_TC(tp, makecontext_arg6); 184 185 return (atf_no_error()); 186 } 187