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Diffstat (limited to 'sysdeps/unix/sysv/linux/fxstat64.c')
-rw-r--r--sysdeps/unix/sysv/linux/fxstat64.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/fxstat64.c b/sysdeps/unix/sysv/linux/fxstat64.c
index 5f13fbe35c..b88a78c7a5 100644
--- a/sysdeps/unix/sysv/linux/fxstat64.c
+++ b/sysdeps/unix/sysv/linux/fxstat64.c
@@ -1,5 +1,5 @@
 /* fxstat64 using old-style Unix fstat system call.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,20 +25,46 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
-#include <xstatconv.c>
+#if __ASSUME_STAT64_SYSCALL == 0
+# include <xstatconv.c>
+#endif
 
 extern int __syscall_fstat (int, struct kernel_stat *);
 
+#ifdef __NR_fstat64
+extern int __syscall_fstat64 (int, struct stat64 *);
+# if  __ASSUME_STAT64_SYSCALL == 0
+/* The variable is shared between all wrappers around *stat64 calls.  */
+extern int have_no_stat64;
+# endif
+#endif
+
 /* Get information about the file FD in BUF.  */
 int
 __fxstat64 (int vers, int fd, struct stat64 *buf)
 {
-  struct kernel_stat kbuf;
+#if __ASSUME_STAT64_SYSCALL > 0
+  return INLINE_SYSCALL (fstat64, 2, fd, &buf);
+#else
   int result;
+  struct kernel_stat kbuf;
+# if defined __NR_fstat64
+  if (! have_no_stat64)
+    {
+      int saved_errno = errno;
+      result = INLINE_SYSCALL (fstat64, 2, fd, &buf);
+
+      if (result != -1 || errno != ENOSYS)
+	return result;
 
+      __set_errno (saved_errno);
+      have_no_stat64 = 1;
+    }
+# endif
   result = INLINE_SYSCALL (fstat, 2, fd, &kbuf);
   if (result == 0)
     result = xstat64_conv (vers, &kbuf, buf);
 
   return result;
+#endif
 }