Fix linux_getcwd() so that if the cwd isn't cached (__getcwd() fails),

the cwd is looked up inside the kernel. The native getcwd() in libc
handles this in userland if __getcwd() fails.

Obtained from: NetBSD via OpenBSD
Tested by: Chris Casey <chriss@phys.ksu.edu>, Markus Holmberg <markush@acc.umu.se>
Reviewed by: Darrell Anderson <anderson@cs.duke.edu>
PR: kern/24315

1 files changed, 0 insertions, 28 deletions

diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index 0f68ab5..2a5d673 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -830,34 +830,6 @@ linux_link(struct proc *p, struct linux_link_args *args)
     return link(p, &bsd);
 }
 
-int
-linux_getcwd(struct proc *p, struct linux_getcwd_args *args)
-{
-	struct __getcwd_args bsd;
-	caddr_t sg;
-	int error, len;
-
-#ifdef DEBUG
-	if (ldebug(getcwd))
-		printf(ARGS(getcwd, "%p, %ld"), args->buf, args->bufsize);
-#endif
-
-	sg = stackgap_init();
-	bsd.buf = stackgap_alloc(&sg, SPARE_USRSPACE);
-	bsd.buflen = SPARE_USRSPACE;
-	error = __getcwd(p, &bsd);
-	if (!error) {
-		len = strlen(bsd.buf) + 1;
-		if (len <= args->bufsize) {
-			p->p_retval[0] = len;
-			error = copyout(bsd.buf, args->buf, len);
-		}
-		else
-			error = ERANGE;
-	}
-	return (error);
-}
-
 #ifndef __alpha__
 int
 linux_fdatasync(p, uap)