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 <atf-c.h> 29 #include <ucontext.h> 30 31 static char uc_stack[16 * 1024]; 32 33 static void 34 check_1(int arg1) 35 { 36 37 ATF_REQUIRE_EQ(arg1, 1); 38 } 39 40 ATF_TC_WITHOUT_HEAD(makecontext_arg1); 41 ATF_TC_BODY(makecontext_arg1, tc) 42 { 43 ucontext_t ctx[2]; 44 45 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 46 ctx[1].uc_stack.ss_sp = uc_stack; 47 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 48 ctx[1].uc_link = &ctx[0]; 49 makecontext(&ctx[1], (void (*)(void))check_1, 1, 1); 50 51 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 52 } 53 54 static void 55 check_2(int arg1, int arg2) 56 { 57 58 ATF_REQUIRE_EQ(arg1, 1); 59 ATF_REQUIRE_EQ(arg2, 2); 60 } 61 62 ATF_TC_WITHOUT_HEAD(makecontext_arg2); 63 ATF_TC_BODY(makecontext_arg2, tc) 64 { 65 ucontext_t ctx[2]; 66 67 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 68 ctx[1].uc_stack.ss_sp = uc_stack; 69 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 70 ctx[1].uc_link = &ctx[0]; 71 makecontext(&ctx[1], (void (*)(void))check_2, 2, 1, 2); 72 73 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 74 } 75 76 static void 77 check_3(int arg1, int arg2, int arg3) 78 { 79 80 ATF_REQUIRE_EQ(arg1, 1); 81 ATF_REQUIRE_EQ(arg2, 2); 82 ATF_REQUIRE_EQ(arg3, 3); 83 } 84 85 ATF_TC_WITHOUT_HEAD(makecontext_arg3); 86 ATF_TC_BODY(makecontext_arg3, tc) 87 { 88 ucontext_t ctx[2]; 89 90 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 91 ctx[1].uc_stack.ss_sp = uc_stack; 92 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 93 ctx[1].uc_link = &ctx[0]; 94 makecontext(&ctx[1], (void (*)(void))check_3, 3, 1, 2, 3); 95 96 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 97 } 98 99 static void 100 check_4(int arg1, int arg2, int arg3, int arg4) 101 { 102 103 ATF_REQUIRE_EQ(arg1, 1); 104 ATF_REQUIRE_EQ(arg2, 2); 105 ATF_REQUIRE_EQ(arg3, 3); 106 ATF_REQUIRE_EQ(arg4, 4); 107 } 108 109 ATF_TC_WITHOUT_HEAD(makecontext_arg4); 110 ATF_TC_BODY(makecontext_arg4, tc) 111 { 112 ucontext_t ctx[2]; 113 114 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 115 ctx[1].uc_stack.ss_sp = uc_stack; 116 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 117 ctx[1].uc_link = &ctx[0]; 118 makecontext(&ctx[1], (void (*)(void))check_4, 4, 1, 2, 3, 4); 119 120 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 121 } 122 123 static void 124 check_5(int arg1, int arg2, int arg3, int arg4, int arg5) 125 { 126 127 ATF_REQUIRE_EQ(arg1, 1); 128 ATF_REQUIRE_EQ(arg2, 2); 129 ATF_REQUIRE_EQ(arg3, 3); 130 ATF_REQUIRE_EQ(arg4, 4); 131 ATF_REQUIRE_EQ(arg5, 5); 132 } 133 134 ATF_TC_WITHOUT_HEAD(makecontext_arg5); 135 ATF_TC_BODY(makecontext_arg5, tc) 136 { 137 ucontext_t ctx[2]; 138 139 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 140 ctx[1].uc_stack.ss_sp = uc_stack; 141 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 142 ctx[1].uc_link = &ctx[0]; 143 makecontext(&ctx[1], (void (*)(void))check_5, 5, 1, 2, 3, 4, 5); 144 145 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 146 } 147 148 static void 149 check_6(int arg1, int arg2, int arg3, int arg4, int arg5, int arg6) 150 { 151 152 ATF_REQUIRE_EQ(arg1, 1); 153 ATF_REQUIRE_EQ(arg2, 2); 154 ATF_REQUIRE_EQ(arg3, 3); 155 ATF_REQUIRE_EQ(arg4, 4); 156 ATF_REQUIRE_EQ(arg5, 5); 157 ATF_REQUIRE_EQ(arg6, 6); 158 } 159 160 ATF_TC_WITHOUT_HEAD(makecontext_arg6); 161 ATF_TC_BODY(makecontext_arg6, tc) 162 { 163 ucontext_t ctx[2]; 164 165 ATF_REQUIRE_EQ(getcontext(&ctx[1]), 0); 166 ctx[1].uc_stack.ss_sp = uc_stack; 167 ctx[1].uc_stack.ss_size = sizeof(uc_stack); 168 ctx[1].uc_link = &ctx[0]; 169 makecontext(&ctx[1], (void (*)(void))check_6, 6, 1, 2, 3, 4, 5, 6); 170 171 ATF_REQUIRE_EQ(swapcontext(&ctx[0], &ctx[1]), 0); 172 } 173 174 ATF_TP_ADD_TCS(tp) 175 { 176 177 ATF_TP_ADD_TC(tp, makecontext_arg1); 178 ATF_TP_ADD_TC(tp, makecontext_arg2); 179 ATF_TP_ADD_TC(tp, makecontext_arg3); 180 ATF_TP_ADD_TC(tp, makecontext_arg4); 181 ATF_TP_ADD_TC(tp, makecontext_arg5); 182 ATF_TP_ADD_TC(tp, makecontext_arg6); 183 184 return (atf_no_error()); 185 } 186