1 files changed, 55 insertions, 0 deletions
diff --git a/lib/libc/sys/compat-stub.c b/lib/libc/sys/compat-stub.c
new file mode 100644
index 000000000000..d23eaf3f89b8
--- /dev/null
+++ b/lib/libc/sys/compat-stub.c
@@ -0,0 +1,55 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2018 SRI International
+ * All rights reserved.
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory (Department of Computer Science and
+ * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
+ * DARPA SSITH research programme.
+ *
+ * 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 AUTHOR 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 AUTHOR 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/types.h>
+#include <sys/errno.h>
+
+/*
+ * XXX: Ideally we'd use a common function rather than generating one
+ * for each compat symbol, but the bfd linker in base rejects that.
+ * This should be revisited once we're using only modern linkers.
+ */
+#define __compat_nosys(symbol, version)				\
+int __compat_enosys ## symbol(void);				\
+int								\
+__compat_enosys ## symbol(void)					\
+{								\
+								\
+	return (ENOSYS);					\
+}								\
+__sym_compat(symbol, __compat_enosys ## symbol, version)
+
+__compat_nosys(netbsd_lchown, FBSD_1.0);
+__compat_nosys(netbsd_msync, FBSD_1.0);
+__compat_nosys(numa_getaffinity, FBSD_1.4);
+__compat_nosys(numa_setaffinity, FBSD_1.4);