From 69bb9f499ed925ab16e0a8ba0725e72d7375d3b3 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Fri, 20 Aug 1999 18:24:42 +0000
Subject: [PATCH] Correct last patch.

---
 sysdeps/unix/sysv/linux/getcwd.c | 45 +++++---------------------------
 1 file changed, 7 insertions(+), 38 deletions(-)

diff --git a/sysdeps/unix/sysv/linux/getcwd.c b/sysdeps/unix/sysv/linux/getcwd.c
index 223cd310b8..d529b9a181 100644
--- a/sysdeps/unix/sysv/linux/getcwd.c
+++ b/sysdeps/unix/sysv/linux/getcwd.c
@@ -18,7 +18,6 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#include <assert.h>
 #include <errno.h>
 #include <limits.h>
 #include <stdlib.h>
@@ -27,19 +26,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
-#include "kernel-features.h"
 
-
-#if __ASSUME_GETCWD_SYSCALL > 0
-/* Kernel 2.1.92 introduced a third way to get the current working
-   directory: a syscall.  We've got to be careful that even when
-   compiling under 2.1.92+ the libc still runs under older kernels. */
-extern int __syscall_getcwd (char *buf, unsigned long size);
-# define no_syscall_getcwd 0
-# define have_new_dcache 1
-/* This is a trick since we don't define generic_getcwd.  */
-# define generic_getcwd getcwd
-#else
 /* The "proc" filesystem provides an easy method to retrieve the value.
    For each process, the corresponding directory contains a symbolic link
    named `cwd'.  Reading the content of this link immediate gives us the
@@ -47,17 +34,16 @@ extern int __syscall_getcwd (char *buf, unsigned long size);
    the proc filesystem mounted.  Use the POSIX implementation in this case.  */
 static char *generic_getcwd (char *buf, size_t size) internal_function;
 
-# if __NR_getcwd
+#ifdef __NR_getcwd
 /* Kernel 2.1.92 introduced a third way to get the current working
    directory: a syscall.  We've got to be careful that even when
    compiling under 2.1.92+ the libc still runs under older kernels. */
 extern int __syscall_getcwd (char *buf, unsigned long size);
 static int no_syscall_getcwd;
 static int have_new_dcache;
-# else
-#  define no_syscall_getcwd 1
+#else
+# define no_syscall_getcwd 1
 static int have_new_dcache = 1;
-# endif
 #endif
 
 char *
@@ -94,7 +80,7 @@ __getcwd (char *buf, size_t size)
 
   save_errno = errno;
 
-#if defined __NR_getcwd || __LINUX_GETCWD_SYSCALL > 0
+#ifdef __NR_getcwd
   if (!no_syscall_getcwd)
     {
       int retval;
@@ -112,16 +98,6 @@ __getcwd (char *buf, size_t size)
 	  return buf;
 	}
 
-# if __ASSUME_GETCWD_SYSCALL
-      /* It should never happen that the `getcwd' syscall failed because
-	 the buffer is too small if we allocated the buffer outself.  */
-      assert (errno != ERANGE || buf != NULL);
-
-      if (buf == NULL)
-	free (path);
-
-      return NULL;
-# else
       if (errno == ENOSYS)
 	{
 	   no_syscall_getcwd = 1;
@@ -135,7 +111,6 @@ __getcwd (char *buf, size_t size)
 	}
 
       __set_errno (save_errno);
-# endif
     }
 #endif
 
@@ -161,18 +136,14 @@ __getcwd (char *buf, size_t size)
 	    }
 	  return buf;
 	}
-#ifndef have_new_dcache
       else
 	have_new_dcache = 0;
-#endif
     }
 
-#if __ASSUME_GETCWD_SYSCALL == 0
   /* Set to have_new_dcache only if error indicates that proc doesn't
      exist.  */
   if (errno != EACCES && errno != ENAMETOOLONG)
     have_new_dcache = 0;
-#endif
 
   /* Something went wrong.  Restore the error number and use the generic
      version.  */
@@ -194,9 +165,7 @@ __getcwd (char *buf, size_t size)
 }
 weak_alias (__getcwd, getcwd)
 
-#if __ASSUME_GETCWD_SYSCALL == 0
 /* Get the code for the generic version.  */
-# define GETCWD_RETURN_TYPE	static char * internal_function
-# define __getcwd		generic_getcwd
-# include <sysdeps/posix/getcwd.c>
-#endif
+#define GETCWD_RETURN_TYPE	static char * internal_function
+#define __getcwd		generic_getcwd
+#include <sysdeps/posix/getcwd.c>