From: Yann Sionneau <ysionn...@kalray.eu>
Add fstatat wrapper that uses statx for non-legacy arch.
This allows non-legacy arch to opt-out from defining the old stat* syscalls
by not defining __ARCH_WANT_NEW_STAT in their
arch/xxx/include/asm/unistd.h
Signed-off-by: Yann Sionneau <ysionn...@kalray.eu>
---
libc/sysdeps/linux/common/fstatat.c | 39 +++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/libc/sysdeps/linux/common/fstatat.c
b/libc/sysdeps/linux/common/fstatat.c
index 13673d76c..db4a8327f 100644
--- a/libc/sysdeps/linux/common/fstatat.c
+++ b/libc/sysdeps/linux/common/fstatat.c
@@ -31,5 +31,44 @@ int fstatat(int fd, const char *file, struct stat *buf, int
flag)
}
libc_hidden_def(fstatat)
#else
+
+#if defined(__NR_statx)
+#include <sys/sysmacros.h> // for makedev
+
+int fstatat(int fd, const char *file, struct stat *buf, int flag)
+{
+ int ret;
+ struct statx tmp;
+
+ ret = INLINE_SYSCALL(statx, 5, fd, file, flag,
+ STATX_BASIC_STATS, &tmp);
+ if (ret != 0)
+ return ret;
+
+ *buf = (struct stat) {
+ .st_dev = makedev(tmp.stx_dev_major, tmp.stx_dev_minor),
+ .st_ino = tmp.stx_ino,
+ .st_mode = tmp.stx_mode,
+ .st_nlink = tmp.stx_nlink,
+ .st_uid = tmp.stx_uid,
+ .st_gid = tmp.stx_gid,
+ .st_rdev = makedev(tmp.stx_rdev_major, tmp.stx_rdev_minor),
+ .st_size = tmp.stx_size,
+ .st_blksize = tmp.stx_blksize,
+ .st_blocks = tmp.stx_blocks,
+ .st_atim.tv_sec = tmp.stx_atime.tv_sec,
+ .st_atim.tv_nsec = tmp.stx_atime.tv_nsec,
+ .st_mtim.tv_sec = tmp.stx_mtime.tv_sec,
+ .st_mtim.tv_nsec = tmp.stx_mtime.tv_nsec,
+ .st_ctim.tv_sec = tmp.stx_ctime.tv_sec,
+ .st_ctim.tv_nsec = tmp.stx_ctime.tv_nsec,
+ };
+
+ return ret;
+}
+libc_hidden_def(fstatat)
+
+#endif
+
/* should add emulation with fstat() and /proc/self/fd/ ... */
#endif
--
2.42.0
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