diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libpthread/t_swapcontext.c')
-rw-r--r-- | contrib/netbsd-tests/lib/libpthread/t_swapcontext.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libpthread/t_swapcontext.c b/contrib/netbsd-tests/lib/libpthread/t_swapcontext.c new file mode 100644 index 0000000..8fd2314 --- /dev/null +++ b/contrib/netbsd-tests/lib/libpthread/t_swapcontext.c @@ -0,0 +1,112 @@ +/* $NetBSD: t_swapcontext.c,v 1.2 2014/08/25 16:31:15 bouyer Exp $ */ + +/* + * Copyright (c) 2012 Emmanuel Dreyfus. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__RCSID("$NetBSD"); + +#include <pthread.h> +#include <ucontext.h> +#include <stdio.h> +#include <stdlib.h> + +#include <atf-c.h> + +#include "h_common.h" + +#define STACKSIZE 65536 + +char stack[STACKSIZE]; +ucontext_t nctx; +ucontext_t octx; +void *oself; +void *nself; +int val1, val2; + +/* ARGSUSED0 */ +static void +swapfunc(void *arg) +{ + /* + * If the test fails, we are very likely to crash + * without the opportunity to report + */ + nself = (void *)pthread_self(); + printf("after swapcontext self = %p\n", nself); + + ATF_REQUIRE_EQ(oself, nself); + printf("Test succeeded\n"); + /* Go back in main */ + ATF_REQUIRE(swapcontext(&nctx, &octx)); + + /* NOTREACHED */ + return; +} + +/* ARGSUSED0 */ +static void * +threadfunc(void *arg) +{ + nctx.uc_stack.ss_sp = stack; + nctx.uc_stack.ss_size = sizeof(stack); + + makecontext(&nctx, (void *)*swapfunc, 0); + + oself = (void *)pthread_self(); + printf("before swapcontext self = %p\n", oself); + PTHREAD_REQUIRE(swapcontext(&octx, &nctx)); + + /* NOTREACHED */ + return NULL; +} + + +ATF_TC(swapcontext1); +ATF_TC_HEAD(swapcontext1, tc) +{ + atf_tc_set_md_var(tc, "descr", "Testing if swapcontext() " + "alters pthread_self()"); +} +ATF_TC_BODY(swapcontext1, tc) +{ + pthread_t thread; + + oself = (void *)&val1; + nself = (void *)&val2; + + printf("Testing if swapcontext() alters pthread_self()\n"); + + PTHREAD_REQUIRE(getcontext(&nctx)); + PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc, NULL)); + PTHREAD_REQUIRE(pthread_join(thread, NULL)); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, swapcontext1); + + return atf_no_error(); +} |