1 /* Get file status. Linux version.
2 Copyright (C) 2020-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #define __fstatat __redirect___fstatat
20 #define fstatat __redirect_fstatat
26 #include <sys/sysmacros.h>
27 #include <internal-stat.h>
29 #if __TIMESIZE == 64 \
30 && (__WORDSIZE == 32 \
31 && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
32 /* Sanity check to avoid newer 32-bit ABI to support non-LFS calls. */
33 _Static_assert (sizeof (__off_t
) == sizeof (__off64_t
),
34 "__blkcnt_t and __blkcnt64_t must match");
35 _Static_assert (sizeof (__ino_t
) == sizeof (__ino64_t
),
36 "__blkcnt_t and __blkcnt64_t must match");
37 _Static_assert (sizeof (__blkcnt_t
) == sizeof (__blkcnt64_t
),
38 "__blkcnt_t and __blkcnt64_t must match");
44 fstatat64_time64_statx (int fd
, const char *file
, struct __stat64_t64
*buf
,
47 /* 32-bit kABI with default 64-bit time_t, e.g. arc, riscv32. Also
48 64-bit time_t support is done through statx syscall. */
50 int r
= INTERNAL_SYSCALL_CALL (statx
, fd
, file
, AT_NO_AUTOMOUNT
| flag
,
51 STATX_BASIC_STATS
, &tmp
);
55 *buf
= (struct __stat64_t64
) {
56 .st_dev
= __gnu_dev_makedev (tmp
.stx_dev_major
, tmp
.stx_dev_minor
),
57 .st_rdev
= __gnu_dev_makedev (tmp
.stx_rdev_major
, tmp
.stx_rdev_minor
),
58 .st_ino
= tmp
.stx_ino
,
59 .st_mode
= tmp
.stx_mode
,
60 .st_nlink
= tmp
.stx_nlink
,
61 .st_uid
= tmp
.stx_uid
,
62 .st_gid
= tmp
.stx_gid
,
63 .st_atime
= tmp
.stx_atime
.tv_sec
,
64 .st_atim
.tv_nsec
= tmp
.stx_atime
.tv_nsec
,
65 .st_mtime
= tmp
.stx_mtime
.tv_sec
,
66 .st_mtim
.tv_nsec
= tmp
.stx_mtime
.tv_nsec
,
67 .st_ctime
= tmp
.stx_ctime
.tv_sec
,
68 .st_ctim
.tv_nsec
= tmp
.stx_ctime
.tv_nsec
,
69 .st_size
= tmp
.stx_size
,
70 .st_blocks
= tmp
.stx_blocks
,
71 .st_blksize
= tmp
.stx_blksize
,
78 /* Only statx supports 64-bit timestamps for 32-bit architectures with
79 __ASSUME_STATX, so there is no point in building the fallback. */
80 #if !FSTATAT_USE_STATX || (FSTATAT_USE_STATX && !defined __ASSUME_STATX)
82 fstatat64_time64_stat (int fd
, const char *file
, struct __stat64_t64
*buf
,
88 # ifdef __NR_newfstatat
89 /* 64-bit kABI, e.g. aarch64, ia64, powerpc64*, s390x, riscv64, and
91 r
= INTERNAL_SYSCALL_CALL (newfstatat
, fd
, file
, buf
, flag
);
92 # elif defined __NR_fstatat64
93 # if STAT64_IS_KERNEL_STAT64
94 /* 64-bit kABI outlier, e.g. alpha */
95 r
= INTERNAL_SYSCALL_CALL (fstatat64
, fd
, file
, buf
, flag
);
97 /* 64-bit kABI outlier, e.g. sparc64. */
98 struct kernel_stat64 kst64
;
99 r
= INTERNAL_SYSCALL_CALL (fstatat64
, fd
, file
, &kst64
, flag
);
101 __cp_stat64_kstat64 (buf
, &kst64
);
105 # ifdef __NR_fstatat64
106 /* All kABIs with non-LFS support and with old 32-bit time_t support
107 e.g. arm, csky, i386, hppa, m68k, microblaze, nios2, sh, powerpc32,
110 r
= INTERNAL_SYSCALL_CALL (fstatat64
, fd
, file
, &st64
, flag
);
113 /* Clear both pad and reserved fields. */
114 memset (buf
, 0, sizeof (*buf
));
116 buf
->st_dev
= st64
.st_dev
,
117 buf
->st_ino
= st64
.st_ino
;
118 buf
->st_mode
= st64
.st_mode
;
119 buf
->st_nlink
= st64
.st_nlink
;
120 buf
->st_uid
= st64
.st_uid
;
121 buf
->st_gid
= st64
.st_gid
;
122 buf
->st_rdev
= st64
.st_rdev
;
123 buf
->st_size
= st64
.st_size
;
124 buf
->st_blksize
= st64
.st_blksize
;
125 buf
->st_blocks
= st64
.st_blocks
;
126 buf
->st_atim
= valid_timespec_to_timespec64 (st64
.st_atim
);
127 buf
->st_mtim
= valid_timespec_to_timespec64 (st64
.st_mtim
);
128 buf
->st_ctim
= valid_timespec_to_timespec64 (st64
.st_ctim
);
131 /* 64-bit kabi outlier, e.g. mips64 and mips64-n32. */
132 struct kernel_stat kst
;
133 r
= INTERNAL_SYSCALL_CALL (newfstatat
, fd
, file
, &kst
, flag
);
135 __cp_kstat_stat64_t64 (&kst
, buf
);
144 __fstatat64_time64 (int fd
, const char *file
, struct __stat64_t64
*buf
,
149 #if FSTATAT_USE_STATX
150 r
= fstatat64_time64_statx (fd
, file
, buf
, flag
);
151 # ifndef __ASSUME_STATX
153 r
= fstatat64_time64_stat (fd
, file
, buf
, flag
);
156 r
= fstatat64_time64_stat (fd
, file
, buf
, flag
);
159 return INTERNAL_SYSCALL_ERROR_P (r
)
160 ? INLINE_SYSCALL_ERROR_RETURN_VALUE (-r
)
164 hidden_def (__fstatat64_time64
)
167 __fstatat64 (int fd
, const char *file
, struct stat64
*buf
, int flags
)
169 struct __stat64_t64 st_t64
;
170 return __fstatat64_time64 (fd
, file
, &st_t64
, flags
)
171 ?: __cp_stat64_t64_stat64 (&st_t64
, buf
);
178 hidden_def (__fstatat64
)
179 weak_alias (__fstatat64
, fstatat64
)
182 strong_alias (__fstatat64
, __fstatat
)
183 weak_alias (__fstatat64
, fstatat
)
184 strong_alias (__fstatat64
, __GI___fstatat
);