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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-07-20 16:02:04 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-10-09 17:02:07 -0300
commitaa03f722f3b994aaf81e72a8904bf33196780930 (patch)
tree592a547907b3701bcf6c7ba279115caf3bbc1c1c /include
parent20b39d59467b0c1d858e89ded8b0cebe55e22f60 (diff)
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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 'include')
-rw-r--r--include/sys/stat.h20
1 files changed, 20 insertions, 0 deletions
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 <xstatver.h>
+# include <struct___timespec64.h>
+# include <struct_stat_time64.h>
# include <stdbool.h>
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);