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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-07-20 16:02:04 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-10-09 17:02:07 -0300 |
| commit | aa03f722f3b994aaf81e72a8904bf33196780930 (patch) | |
| tree | 592a547907b3701bcf6c7ba279115caf3bbc1c1c /sysdeps/unix/sysv/linux/lstat64.c | |
| parent | 20b39d59467b0c1d858e89ded8b0cebe55e22f60 (diff) | |
| download | glibc-aa03f722f3b994aaf81e72a8904bf33196780930.tar.gz glibc-aa03f722f3b994aaf81e72a8904bf33196780930.tar.xz glibc-aa03f722f3b994aaf81e72a8904bf33196780930.zip | |
linux: Add {f}stat{at} y2038 support
A new struct __stat{64}_t64 type is added with the required
__timespec64 time definition. Only LFS is added, 64-bit time with
32-bit offsets is not supposed to be supported (no existing glibc
configuration supports such a combination). It is done with an extra
__NR_statx call plus a conversion to the new __stat{64}_t64 type.
The statx call is done only for 32-bit time_t ABIs.
Internally some extra routines to copy from/to struct stat{64}
to struct __stat{64} used on multiple implementations (stat, fstat,
lstat, and fstatat) are added on a extra implementation
(stat_t64_cp.c). Alse some extra routines to copy from statx to
__stat{64} is added on statx_cp.c.
Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'sysdeps/unix/sysv/linux/lstat64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/lstat64.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/lstat64.c b/sysdeps/unix/sysv/linux/lstat64.c index e5f02e9822..971ab8469d 100644 --- a/sysdeps/unix/sysv/linux/lstat64.c +++ b/sysdeps/unix/sysv/linux/lstat64.c @@ -19,19 +19,32 @@ #define __lstat __redirect___lstat #define lstat __redirect_lstat #include <sys/stat.h> -#undef __lstat -#undef lstat #include <fcntl.h> #include <kernel_stat.h> +#include <stat_t64_cp.h> + +int +__lstat64_time64 (const char *file, struct __stat64_t64 *buf) +{ + return __fstatat64_time64 (AT_FDCWD, file, buf, AT_SYMLINK_NOFOLLOW); +} +#if __TIMESIZE != 64 +hidden_def (__lstat64_time64) int __lstat64 (const char *file, struct stat64 *buf) { - return __fstatat64 (AT_FDCWD, file, buf, AT_SYMLINK_NOFOLLOW); + struct __stat64_t64 st_t64; + return __lstat64_time64 (file, &st_t64) + ?: __cp_stat64_t64_stat64 (&st_t64, buf); } +#endif hidden_def (__lstat64) weak_alias (__lstat64, lstat64) +#undef __lstat +#undef lstat + #if XSTAT_IS_XSTAT64 strong_alias (__lstat64, __lstat) weak_alias (__lstat64, lstat) |