mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
a4ed0471d7
It was raised on libc-help [1] that some Linux kernel interfaces expect the libc to define __USE_TIME_BITS64 to indicate the time_t size for the kABI. Different than defined by the initial y2038 design document [2], the __USE_TIME_BITS64 is only defined for ABIs that support more than one time_t size (by defining the _TIME_BITS for each module). The 64 bit time_t redirects are now enabled using a different internal define (__USE_TIME64_REDIRECTS). There is no expected change in semantic or code generation. Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and arm-linux-gnueabi [1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html [2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign Reviewed-by: DJ Delorie <dj@redhat.com>
136 lines
5.4 KiB
C
136 lines
5.4 KiB
C
/* Definition for struct stat. Linux/nios2 version.
|
|
Copyright (C) 2020-2024 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
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#if !defined _SYS_STAT_H && !defined _FCNTL_H
|
|
# error "Never include <bits/struct_stat.h> directly; use <sys/stat.h> instead."
|
|
#endif
|
|
|
|
#ifndef _BITS_STRUCT_STAT_H
|
|
#define _BITS_STRUCT_STAT_H 1
|
|
|
|
#include <bits/endian.h>
|
|
#include <bits/wordsize.h>
|
|
|
|
#if defined __USE_FILE_OFFSET64
|
|
# define __field64(type, type64, name) type64 name
|
|
#elif __WORDSIZE == 64 || defined __INO_T_MATCHES_INO64_T
|
|
# if defined __INO_T_MATCHES_INO64_T && !defined __OFF_T_MATCHES_OFF64_T
|
|
# error "ino_t and off_t must both be the same type"
|
|
# endif
|
|
# define __field64(type, type64, name) type name
|
|
#elif __BYTE_ORDER == __LITTLE_ENDIAN
|
|
# define __field64(type, type64, name) \
|
|
type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
|
|
#else
|
|
# define __field64(type, type64, name) \
|
|
int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
|
|
#endif
|
|
|
|
struct stat
|
|
{
|
|
#ifdef __USE_TIME64_REDIRECTS
|
|
# include <bits/struct_stat_time64_helper.h>
|
|
#else
|
|
__dev_t st_dev; /* Device. */
|
|
__field64(__ino_t, __ino64_t, st_ino); /* File serial number. */
|
|
__mode_t st_mode; /* File mode. */
|
|
__nlink_t st_nlink; /* Link count. */
|
|
__uid_t st_uid; /* User ID of the file's owner. */
|
|
__gid_t st_gid; /* Group ID of the file's group.*/
|
|
__dev_t st_rdev; /* Device number, if device. */
|
|
__dev_t __pad1;
|
|
__field64(__off_t, __off64_t, st_size); /* Size of file, in bytes. */
|
|
__blksize_t st_blksize; /* Optimal block size for I/O. */
|
|
int __pad2;
|
|
__field64(__blkcnt_t, __blkcnt64_t, st_blocks); /* 512-byte blocks */
|
|
# ifdef __USE_XOPEN2K8
|
|
/* Nanosecond resolution timestamps are stored in a format
|
|
equivalent to 'struct timespec'. This is the type used
|
|
whenever possible but the Unix namespace rules do not allow the
|
|
identifier 'timespec' to appear in the <sys/stat.h> header.
|
|
Therefore we have to handle the use of this header in strictly
|
|
standard-compliant sources special. */
|
|
struct timespec st_atim; /* Time of last access. */
|
|
struct timespec st_mtim; /* Time of last modification. */
|
|
struct timespec st_ctim; /* Time of last status change. */
|
|
# define st_atime st_atim.tv_sec /* Backward compatibility. */
|
|
# define st_mtime st_mtim.tv_sec
|
|
# define st_ctime st_ctim.tv_sec
|
|
# else
|
|
__time_t st_atime; /* Time of last access. */
|
|
unsigned long int st_atimensec; /* Nscecs of last access. */
|
|
__time_t st_mtime; /* Time of last modification. */
|
|
unsigned long int st_mtimensec; /* Nsecs of last modification. */
|
|
__time_t st_ctime; /* Time of last status change. */
|
|
unsigned long int st_ctimensec; /* Nsecs of last status change. */
|
|
# endif
|
|
int __glibc_reserved[2];
|
|
#endif
|
|
};
|
|
|
|
#undef __field64
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
struct stat64
|
|
{
|
|
# ifdef __USE_TIME64_REDIRECTS
|
|
# include <bits/struct_stat_time64_helper.h>
|
|
# else
|
|
__dev_t st_dev; /* Device. */
|
|
__ino64_t st_ino; /* File serial number. */
|
|
__mode_t st_mode; /* File mode. */
|
|
__nlink_t st_nlink; /* Link count. */
|
|
__uid_t st_uid; /* User ID of the file's owner. */
|
|
__gid_t st_gid; /* Group ID of the file's group.*/
|
|
__dev_t st_rdev; /* Device number, if device. */
|
|
__dev_t __pad1;
|
|
__off64_t st_size; /* Size of file, in bytes. */
|
|
__blksize_t st_blksize; /* Optimal block size for I/O. */
|
|
int __pad2;
|
|
__blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */
|
|
# ifdef __USE_XOPEN2K8
|
|
/* Nanosecond resolution timestamps are stored in a format
|
|
equivalent to 'struct timespec'. This is the type used
|
|
whenever possible but the Unix namespace rules do not allow the
|
|
identifier 'timespec' to appear in the <sys/stat.h> header.
|
|
Therefore we have to handle the use of this header in strictly
|
|
standard-compliant sources special. */
|
|
struct timespec st_atim; /* Time of last access. */
|
|
struct timespec st_mtim; /* Time of last modification. */
|
|
struct timespec st_ctim; /* Time of last status change. */
|
|
# else
|
|
__time_t st_atime; /* Time of last access. */
|
|
unsigned long int st_atimensec; /* Nscecs of last access. */
|
|
__time_t st_mtime; /* Time of last modification. */
|
|
unsigned long int st_mtimensec; /* Nsecs of last modification. */
|
|
__time_t st_ctime; /* Time of last status change. */
|
|
unsigned long int st_ctimensec; /* Nsecs of last status change. */
|
|
# endif
|
|
int __glibc_reserved[2];
|
|
# endif
|
|
};
|
|
#endif
|
|
|
|
/* Tell code we have these members. */
|
|
#define _STATBUF_ST_BLKSIZE
|
|
#define _STATBUF_ST_RDEV
|
|
/* Nanosecond resolution time values are supported. */
|
|
#define _STATBUF_ST_NSEC
|
|
|
|
#endif /* _BITS_STRUCT_STAT_H */
|