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Add statx conditionals for wordsize-32 *xstat.c

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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.
This commit is contained in:
Mao Han
2018-11-26 11:13:32 +08:00
parent ef202e530c
commit 6bbfc5c09f
14 changed files with 186 additions and 6 deletions
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12
sysdeps/unix/sysv/linux/fxstat64.c
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@ -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;