1 files changed, 112 insertions, 0 deletions
diff --git a/dist/lib/libpthread/t_swapcontext.c b/dist/lib/libpthread/t_swapcontext.c
new file mode 100644
index 0000000..8fd2314
--- /dev/null
+++ b/dist/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();
+}