From aa03f722f3b994aaf81e72a8904bf33196780930 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 20 Jul 2020 16:02:04 -0300 Subject: 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 --- include/sys/stat.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include/sys') diff --git a/include/sys/stat.h b/include/sys/stat.h index 3d4ea7f0c7..9f7f3a8e3b 100644 --- a/include/sys/stat.h +++ b/include/sys/stat.h @@ -3,6 +3,8 @@ #ifndef _ISOMAC # include +# include +# include # include static inline bool @@ -44,6 +46,24 @@ hidden_proto (__lstat64) hidden_proto (__fstatat64) # endif +# if __TIMESIZE == 64 +# define __stat64_time64 __stat64 +# define __fstat64_time64 __fstat64 +# define __lstat64_time64 __lstat64 +# define __fstatat_time64 __fstatat +# define __fstatat64_time64 __fstatat64 +# else +extern int __stat64_time64 (const char *file, struct __stat64_t64 *buf); +hidden_proto (__stat64_time64); +extern int __lstat64_time64 (const char *file, struct __stat64_t64 *buf); +hidden_proto (__lstat64_time64); +extern int __fstat64_time64 (int fd, struct __stat64_t64 *buf); +hidden_proto (__fstat64_time64); +extern int __fstatat64_time64 (int dirfd, const char *pathname, + struct __stat64_t64 *buf, int flags); +hidden_proto (__fstatat64_time64); +# endif + extern int __chmod (const char *__file, __mode_t __mode); libc_hidden_proto (__chmod) extern int __fchmod (int __fd, __mode_t __mode); -- cgit v1.2.3