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
check_1(int arg1)34 check_1(int arg1)
35 {
36
37 ATF_REQUIRE_EQ(arg1, 1);
38 }
39
40 ATF_TC_WITHOUT_HEAD(makecontext_arg1);
ATF_TC_BODY(makecontext_arg1,tc)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
check_2(int arg1,int arg2)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);
ATF_TC_BODY(makecontext_arg2,tc)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
check_3(int arg1,int arg2,int arg3)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);
ATF_TC_BODY(makecontext_arg3,tc)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
check_4(int arg1,int arg2,int arg3,int arg4)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);
ATF_TC_BODY(makecontext_arg4,tc)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
check_5(int arg1,int arg2,int arg3,int arg4,int arg5)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);
ATF_TC_BODY(makecontext_arg5,tc)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
check_6(int arg1,int arg2,int arg3,int arg4,int arg5,int arg6)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);
ATF_TC_BODY(makecontext_arg6,tc)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
ATF_TP_ADD_TCS(tp)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