From 6bbfc5c09fc5b5e3d4a0cddbbd4e2e457767dae7 Mon Sep 17 00:00:00 2001
From: Mao Han <han_mao@c-sky.com>
Date: Mon, 26 Nov 2018 11:13:32 +0800
Subject: Add statx conditionals for wordsize-32 *xstat.c

Linux kernel have remove stat64 family from default syscall set, new
implementations with statx is needed when __ARCH_WANT_STAT64 is not
define. This patch add conditionals for relevant functions, using statx
system call to get information and then copy to the return buf, ref to
include/linux/fs.h from linux kernel.

	* sysdeps/unix/sysv/linux/Makefile: Add statx_cp.c.
	* sysdeps/unix/sysv/linux/fxstat64.c: Add conditionals for kernel
	without stat64 system call support.
	* sysdeps/unix/sysv/linux/fxstatat64.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/statx_cp.c: New file.
	* sysdeps/unix/sysv/linux/statx_cp.c: Likewise.
	* sysdeps/unix/sysv/linux/statx_cp.h: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/statx_cp.c: Likewise.
---
 sysdeps/unix/sysv/linux/fxstat64.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'sysdeps/unix/sysv/linux/fxstat64.c')

diff --git a/sysdeps/unix/sysv/linux/fxstat64.c b/sysdeps/unix/sysv/linux/fxstat64.c
index 0d053897a0..b0c52715cc 100644
--- a/sysdeps/unix/sysv/linux/fxstat64.c
+++ b/sysdeps/unix/sysv/linux/fxstat64.c
@@ -1,4 +1,4 @@
-/* fxstat64 using Linux fstat64 system call.
+/* fxstat64 using Linux fstat64/statx system call.
    Copyright (C) 1997-2018 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -18,6 +18,7 @@
 
 #include <errno.h>
 #include <stddef.h>
+#include <fcntl.h>
 #include <sys/stat.h>
 #include <kernel_stat.h>
 
@@ -25,6 +26,7 @@
 #include <sys/syscall.h>
 
 #include <kernel-features.h>
+#include <statx_cp.h>
 
 /* Get information about the file FD in BUF.  */
 
@@ -32,7 +34,15 @@ int
 ___fxstat64 (int vers, int fd, struct stat64 *buf)
 {
   int result;
+#ifdef __NR_fstat64
   result = INLINE_SYSCALL (fstat64, 2, fd, buf);
+#else
+  struct statx tmp;
+  result = INLINE_SYSCALL (statx, 5, fd, "", AT_EMPTY_PATH, STATX_BASIC_STATS,
+                           &tmp);
+  if (result == 0)
+    __cp_stat64_statx (buf, &tmp);
+#endif
 #if defined _HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT
   if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
     buf->st_ino = buf->__st_ino;
-- 
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