etc/protocols - sync with NetBSD-8
[minix.git] / tests / lib / libc / sys / t_getcontext.c
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1 /* $NetBSD: t_getcontext.c,v 1.3 2011/07/14 04:59:14 jruoho Exp $ */
3 /*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
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.
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __COPYRIGHT("@(#) Copyright (c) 2008\
31 The NetBSD Foundation, inc. All rights reserved.");
32 __RCSID("$NetBSD: t_getcontext.c,v 1.3 2011/07/14 04:59:14 jruoho Exp $");
34 #include <atf-c.h>
35 #include <errno.h>
36 #include <stdarg.h>
37 #include <stdlib.h>
38 #include <ucontext.h>
40 #define STACKSZ (10*1024)
41 #define DEPTH 3
43 static int calls;
45 static void
46 run(int n, ...)
48 va_list va;
49 int i, ia;
51 ATF_REQUIRE_EQ(n, DEPTH - calls - 1);
53 va_start(va, n);
54 for (i = 0; i < 9; i++) {
55 ia = va_arg(va, int);
56 ATF_REQUIRE_EQ(i, ia);
58 va_end(va);
60 calls++;
63 ATF_TC(getcontext_err);
64 ATF_TC_HEAD(getcontext_err, tc)
66 atf_tc_set_md_var(tc, "descr", "Test errors from getcontext(2)");
69 ATF_TC_BODY(getcontext_err, tc)
72 errno = 0;
73 ATF_REQUIRE_ERRNO(EFAULT, getcontext((void *)-1) == -1);
76 ATF_TC(setcontext_err);
77 ATF_TC_HEAD(setcontext_err, tc)
79 atf_tc_set_md_var(tc, "descr", "Test errors from setcontext(2)");
82 ATF_TC_BODY(setcontext_err, tc)
85 errno = 0;
86 ATF_REQUIRE_ERRNO(EFAULT, setcontext((void *)-1) == -1);
89 ATF_TC(setcontext_link);
90 ATF_TC_HEAD(setcontext_link, tc)
93 atf_tc_set_md_var(tc, "descr",
94 "Checks get/make/setcontext(), context linking via uc_link(), "
95 "and argument passing to the new context");
98 ATF_TC_BODY(setcontext_link, tc)
100 ucontext_t uc[DEPTH];
101 ucontext_t save;
102 volatile int i = 0; /* avoid longjmp clobbering */
104 for (i = 0; i < DEPTH; ++i) {
105 ATF_REQUIRE_EQ(getcontext(&uc[i]), 0);
107 uc[i].uc_stack.ss_sp = malloc(STACKSZ);
108 uc[i].uc_stack.ss_size = STACKSZ;
109 uc[i].uc_link = (i > 0) ? &uc[i - 1] : &save;
111 makecontext(&uc[i], (void *)run, 10, i,
112 0, 1, 2, 3, 4, 5, 6, 7, 8);
115 ATF_REQUIRE_EQ(getcontext(&save), 0);
117 if (calls == 0)
118 ATF_REQUIRE_EQ(setcontext(&uc[DEPTH-1]), 0);
121 ATF_TP_ADD_TCS(tp)
124 ATF_TP_ADD_TC(tp, getcontext_err);
125 ATF_TP_ADD_TC(tp, setcontext_err);
126 ATF_TP_ADD_TC(tp, setcontext_link);
128 return atf_no_error();