[src/trunk]: src/sys/rump/librump/rumpkern Apply a patch from hannken@ which ...

[kre <kre%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/af42a4eaa50a
branches:  trunk
changeset: 451764:af42a4eaa50a
user:      kre <kre%NetBSD.org@localhost>
date:      Sun Jun 02 19:41:51 2019 +0000

description:
Apply a patch from hannken@ which adds a weak alias for rump_getcwd_common()
allowing -lrump to be used without -lrumpvfs.

This is an alternate fix to the earluer one which added -lrumvfs to
many rump based tests (and the rump server) which might be undone soon.

This also fixes the sun2 build.

diffstat:

 sys/rump/librump/rumpkern/emul.c |  17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diffs (38 lines):

diff -r 37358ffa1756 -r af42a4eaa50a sys/rump/librump/rumpkern/emul.c
--- a/sys/rump/librump/rumpkern/emul.c  Sun Jun 02 19:04:34 2019 +0000
+++ b/sys/rump/librump/rumpkern/emul.c  Sun Jun 02 19:41:51 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: emul.c,v 1.190 2019/03/09 09:02:38 hannken Exp $       */
+/*     $NetBSD: emul.c,v 1.191 2019/06/02 19:41:51 kre Exp $   */
 
 /*
  * Copyright (c) 2007-2011 Antti Kantee.  All Rights Reserved.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: emul.c,v 1.190 2019/03/09 09:02:38 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: emul.c,v 1.191 2019/06/02 19:41:51 kre Exp $");
 
 #include <sys/param.h>
 #include <sys/cprng.h>
@@ -256,6 +256,19 @@
 __strong_alias(delay,rump_delay);
 __strong_alias(_delay,rump_delay);
 
+/* Weak alias for getcwd_common to be used unless librumpvfs is present. */
+
+int rump_getcwd_common(struct vnode *, struct vnode *, char **, char *,
+    int, int, struct lwp *);
+int
+rump_getcwd_common(struct vnode *lvp, struct vnode *rvp, char **bpp, char *bufp,
+    int limit, int flags, struct lwp *l)
+{
+
+       return ENOENT;
+}
+__weak_alias(getcwd_common,rump_getcwd_common);
+
 /* Weak aliases for fstrans to be used unless librumpvfs is present. */
 
 void rump_fstrans_start(struct mount *);