Module Name:    src
Committed By:   riastradh
Date:           Tue Feb 11 03:15:10 UTC 2020

Modified Files:
        src/distrib/sets/lists/tests: mi
        src/tests/kernel: Makefile
Added Files:
        src/tests/kernel: h_fpufork.c t_fpufork.sh

Log Message:
Test that fpu state is preserved by fork.


To generate a diff of this commit:
cvs rdiff -u -r1.828 -r1.829 src/distrib/sets/lists/tests/mi
cvs rdiff -u -r1.64 -r1.65 src/tests/kernel/Makefile
cvs rdiff -u -r0 -r1.1 src/tests/kernel/h_fpufork.c \
    src/tests/kernel/t_fpufork.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/distrib/sets/lists/tests/mi
diff -u src/distrib/sets/lists/tests/mi:1.828 src/distrib/sets/lists/tests/mi:1.829
--- src/distrib/sets/lists/tests/mi:1.828	Sat Jan 18 17:18:41 2020
+++ src/distrib/sets/lists/tests/mi	Tue Feb 11 03:15:10 2020
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.828 2020/01/18 17:18:41 kre Exp $
+# $NetBSD: mi,v 1.829 2020/02/11 03:15:10 riastradh Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -2142,6 +2142,7 @@
 ./usr/tests/kernel/arch/i386/t_ptrace_waitpid	tests-obsolete		obsolete
 ./usr/tests/kernel/arch/x86			tests-obsolete		obsolete
 ./usr/tests/kernel/h_fexecve			tests-kernel-tests	compattestfile,atf
+./usr/tests/kernel/h_fpufork			tests-kernel-tests	compattestfile,atf
 ./usr/tests/kernel/h_getprocpath		tests-kernel-tests	compattestfile,atf
 ./usr/tests/kernel/h_interpreter		tests-kernel-tests	compattestfile,atf
 ./usr/tests/kernel/h_ps_strings1		tests-kernel-tests	compattestfile,atf
@@ -2185,6 +2186,7 @@
 ./usr/tests/kernel/t_fcntl			tests-kernel-tests	atf
 ./usr/tests/kernel/t_fexecve			tests-kernel-tests	atf
 ./usr/tests/kernel/t_filedesc			tests-kernel-tests	atf,rump
+./usr/tests/kernel/t_fpufork			tests-kernel-tests	atf
 ./usr/tests/kernel/t_interp			tests-kernel-tests	atf
 ./usr/tests/kernel/t_kauth_pr_47598		tests-kernel-tests	compattestfile,atf
 ./usr/tests/kernel/t_ksem			tests-kernel-tests	atf

Index: src/tests/kernel/Makefile
diff -u src/tests/kernel/Makefile:1.64 src/tests/kernel/Makefile:1.65
--- src/tests/kernel/Makefile:1.64	Sun Sep 29 23:45:00 2019
+++ src/tests/kernel/Makefile	Tue Feb 11 03:15:10 2020
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.64 2019/09/29 23:45:00 mrg Exp $
+# $NetBSD: Makefile,v 1.65 2020/02/11 03:15:10 riastradh Exp $
 
 NOMAN=		# defined
 
@@ -29,6 +29,7 @@ TESTS_SH+=	t_interp
 TESTS_SH+=	t_origin
 TESTS_SH+=	t_procpath
 TESTS_SH+=	t_fexecve
+TESTS_SH+=	t_fpufork
 
 BINDIR=		${TESTSDIR}
 PROGS=		h_fexecve
@@ -36,6 +37,7 @@ PROGS+=		h_ps_strings1
 PROGS+=		h_ps_strings2
 PROGS+=		h_segv
 PROGS+=		h_getprocpath
+PROGS+=		h_fpufork
 
 SCRIPTSDIR=	${TESTSDIR}
 SCRIPTS=	h_interpreter.sh

Added files:

Index: src/tests/kernel/h_fpufork.c
diff -u /dev/null src/tests/kernel/h_fpufork.c:1.1
--- /dev/null	Tue Feb 11 03:15:11 2020
+++ src/tests/kernel/h_fpufork.c	Tue Feb 11 03:15:10 2020
@@ -0,0 +1,64 @@
+/*	$NetBSD: h_fpufork.c,v 1.1 2020/02/11 03:15:10 riastradh Exp $	*/
+
+/*-
+ * Copyright (c) 2020 The NetBSD Foundation, Inc.
+ * 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: h_fpufork.c,v 1.1 2020/02/11 03:15:10 riastradh Exp $");
+
+#include <sys/wait.h>
+
+#include <err.h>
+#include <sched.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	pid_t child, pid;
+	volatile double x = 1;
+	register double y = 2*x;
+	int status;
+
+	pid = fork();
+	switch (pid) {
+	case -1:		/* error */
+		err(1, "fork");
+	case 0:			/* child */
+		_exit(y == 2 ? 0 : 1);
+	default:		/* parent */
+		break;
+	}
+
+	if ((child = wait(&status)) == -1)
+		err(1, "wait");
+	if (WIFSIGNALED(status))
+		errx(1, "child exited on signal %d", WTERMSIG(status));
+	if (!WIFEXITED(status))
+		errx(1, "child didn't exit");
+	return WEXITSTATUS(status);
+}
Index: src/tests/kernel/t_fpufork.sh
diff -u /dev/null src/tests/kernel/t_fpufork.sh:1.1
--- /dev/null	Tue Feb 11 03:15:11 2020
+++ src/tests/kernel/t_fpufork.sh	Tue Feb 11 03:15:10 2020
@@ -0,0 +1,41 @@
+#	$NetBSD: t_fpufork.sh,v 1.1 2020/02/11 03:15:10 riastradh Exp $
+#
+# Copyright (c) 2020 The NetBSD Foundation, Inc.
+# 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.
+
+atf_test_case fpufork
+fpufork_head()
+{
+	atf_set "descr" "Verify fork preserves fpu"
+}
+fpufork_body()
+{
+	atf_check -s exit:0 -o inline: -e inline: \
+		$(atf_get_srcdir)/h_fpufork
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case fpufork
+}

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