130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/* $NetBSD: t_getcontext.c,v 1.3 2011/07/14 04:59:14 jruoho Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__COPYRIGHT("@(#) Copyright (c) 2008\
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The NetBSD Foundation, inc. All rights reserved.");
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__RCSID("$NetBSD: t_getcontext.c,v 1.3 2011/07/14 04:59:14 jruoho Exp $");
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#include <atf-c.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <ucontext.h>
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#define STACKSZ (10*1024)
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#define DEPTH 3
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static int calls;
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static void
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run(int n, ...)
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{
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va_list va;
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int i, ia;
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ATF_REQUIRE_EQ(n, DEPTH - calls - 1);
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va_start(va, n);
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for (i = 0; i < 9; i++) {
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ia = va_arg(va, int);
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ATF_REQUIRE_EQ(i, ia);
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}
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va_end(va);
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calls++;
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}
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ATF_TC(getcontext_err);
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ATF_TC_HEAD(getcontext_err, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test errors from getcontext(2)");
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}
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ATF_TC_BODY(getcontext_err, tc)
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{
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errno = 0;
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ATF_REQUIRE_ERRNO(EFAULT, getcontext((void *)-1) == -1);
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}
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ATF_TC(setcontext_err);
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ATF_TC_HEAD(setcontext_err, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test errors from setcontext(2)");
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}
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ATF_TC_BODY(setcontext_err, tc)
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{
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errno = 0;
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ATF_REQUIRE_ERRNO(EFAULT, setcontext((void *)-1) == -1);
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}
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ATF_TC(setcontext_link);
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ATF_TC_HEAD(setcontext_link, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Checks get/make/setcontext(), context linking via uc_link(), "
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"and argument passing to the new context");
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}
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ATF_TC_BODY(setcontext_link, tc)
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{
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ucontext_t uc[DEPTH];
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ucontext_t save;
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volatile int i = 0; /* avoid longjmp clobbering */
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for (i = 0; i < DEPTH; ++i) {
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ATF_REQUIRE_EQ(getcontext(&uc[i]), 0);
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uc[i].uc_stack.ss_sp = malloc(STACKSZ);
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uc[i].uc_stack.ss_size = STACKSZ;
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uc[i].uc_link = (i > 0) ? &uc[i - 1] : &save;
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makecontext(&uc[i], (void *)run, 10, i,
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0, 1, 2, 3, 4, 5, 6, 7, 8);
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}
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ATF_REQUIRE_EQ(getcontext(&save), 0);
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if (calls == 0)
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ATF_REQUIRE_EQ(setcontext(&uc[DEPTH-1]), 0);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, getcontext_err);
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ATF_TP_ADD_TC(tp, setcontext_err);
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ATF_TP_ADD_TC(tp, setcontext_link);
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return atf_no_error();
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}
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