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ad845c0b | 1 | /* xstat64 using Linux stat64 system call. |
581c785b | 2 | Copyright (C) 1991-2022 Free Software Foundation, Inc. |
4cca6b86 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
4cca6b86 UD |
9 | |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
4cca6b86 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
4cca6b86 | 18 | |
71aadfb8 | 19 | #define __xstat __redirect___xstat |
9756dfe1 | 20 | #include <sys/stat.h> |
71aadfb8 AZ |
21 | #undef __xstat |
22 | #include <fcntl.h> | |
9756dfe1 | 23 | #include <kernel_stat.h> |
0dee6738 | 24 | #include <sysdep.h> |
71aadfb8 AZ |
25 | #include <xstatconv.h> |
26 | #include <statx_cp.h> | |
20b39d59 AZ |
27 | #include <shlib-compat.h> |
28 | ||
46c1c765 | 29 | #if LIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33) |
4bbb61e4 | 30 | |
9756dfe1 | 31 | /* Get information about the file NAME in BUF. */ |
63a34b0f | 32 | |
56ddf355 UD |
33 | int |
34 | ___xstat64 (int vers, const char *name, struct stat64 *buf) | |
9756dfe1 | 35 | { |
71aadfb8 AZ |
36 | #if XSTAT_IS_XSTAT64 |
37 | # ifdef __NR_stat64 | |
38 | /* 64-bit kABI outlier, e.g. sparc64. */ | |
39 | if (vers == _STAT_VER_KERNEL) | |
40 | return INLINE_SYSCALL_CALL (stat, name, buf); | |
41 | else | |
42 | { | |
43 | struct stat64 st64; | |
44 | int r = INLINE_SYSCALL_CALL (stat64, name, &st64); | |
45 | return r ?: __xstat32_conv (vers, &st64, (struct stat *) buf); | |
46 | } | |
47 | # elif defined __NR_stat | |
48 | /* Old 64-bit kABI, e.g. ia64, powerpc64*, s390x, and x86_64. */ | |
49 | if (vers == _STAT_VER_KERNEL || vers == _STAT_VER_LINUX) | |
50 | return INLINE_SYSCALL_CALL (stat, name, buf); | |
51 | # elif defined __NR_newfstatat | |
52 | /* New kABIs which uses generic 64-bit Linux ABI, e.g. aarch64, riscv64. */ | |
53 | if (vers == _STAT_VER_KERNEL) | |
54 | return INLINE_SYSCALL_CALL (newfstatat, AT_FDCWD, name, buf, 0); | |
55 | # else | |
56 | /* New 32-bit kABIs with only 64-bit time_t support, e.g. arc, riscv32. */ | |
57 | if (vers == _STAT_VER_KERNEL) | |
58 | { | |
59 | struct statx tmp; | |
60 | int r = INLINE_SYSCALL_CALL (statx, AT_FDCWD, name, AT_NO_AUTOMOUNT, | |
61 | STATX_BASIC_STATS, &tmp); | |
62 | if (r == 0) | |
63 | __cp_stat64_statx (buf, &tmp); | |
64 | return r; | |
65 | } | |
66 | # endif | |
67 | #else | |
68 | # if STAT_IS_KERNEL_STAT | |
69 | /* New kABIs which uses generic pre 64-bit time Linux ABI, | |
70 | e.g. csky, nios2 */ | |
71 | if (vers == _STAT_VER_KERNEL) | |
72 | return INLINE_SYSCALL_CALL (fstatat64, AT_FDCWD, name, buf, 0); | |
73 | # else | |
74 | /* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k, | |
75 | microblaze, s390, sh, mips32, powerpc32, and sparc32. */ | |
76 | return INLINE_SYSCALL_CALL (stat64, name, buf); | |
77 | # endif /* STAT_IS_KERNEL_STAT */ | |
78 | #endif /* XSTAT_IS_XSTAT64 */ | |
79 | ||
80 | return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); | |
9756dfe1 | 81 | } |
56ddf355 | 82 | |
71aadfb8 | 83 | #if XSTAT_IS_XSTAT64 |
22edf4d4 | 84 | strong_alias (___xstat64, __xstat) |
71aadfb8 | 85 | #endif |
56ddf355 | 86 | |
ce460d04 | 87 | #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) |
22edf4d4 | 88 | versioned_symbol (libc, ___xstat64, __xstat64, GLIBC_2_2); |
56ddf355 UD |
89 | strong_alias (___xstat64, __old__xstat64) |
90 | compat_symbol (libc, __old__xstat64, __xstat64, GLIBC_2_1); | |
fb23eb25 | 91 | #else |
ce460d04 | 92 | strong_alias (___xstat64, __xstat64) |
56ddf355 | 93 | #endif |
20b39d59 | 94 | |
46c1c765 AZ |
95 | |
96 | #endif /* LIB_COMPAT */ |