1 files changed, 53 insertions, 1 deletions

diff --git a/sysdeps/unix/sysv/linux/fstatat.c b/sysdeps/unix/sysv/linux/fstatat.c
index 4574966..c7fcfaf 100644
--- a/sysdeps/unix/sysv/linux/fstatat.c
+++ b/sysdeps/unix/sysv/linux/fstatat.c
@@ -18,12 +18,64 @@
 
 #include <sys/stat.h>
 #include <kernel_stat.h>
+#include <sysdep.h>
 
 #if !XSTAT_IS_XSTAT64
+# include <kstat_cp.h>
+
 int
 __fstatat (int fd, const char *file, struct stat *buf, int flag)
 {
-  return __fxstatat (_STAT_VER, fd, file, buf, flag);
+# if STAT_IS_KERNEL_STAT
+  /* New kABIs which uses generic pre 64-bit time Linux ABI, e.g.
+     csky, nios2  */
+  int r = INLINE_SYSCALL_CALL (fstatat64, fd, file, buf, flag);
+  if (r == 0 && (buf->__st_ino_pad != 0
+		 || buf->__st_size_pad != 0
+		 || buf->__st_blocks_pad != 0))
+    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+  return r;
+# else
+#  ifdef __NR_fstatat64
+  /* Old KABIs with old non-LFS support, e.g. arm, i386, hppa, m68k, mips32,
+     microblaze, s390, sh, powerpc, and sparc.  */
+  struct stat64 st64;
+  int r = INLINE_SYSCALL_CALL (fstatat64, fd, file, &st64, flag);
+  if (r == 0)
+    {
+      if (! in_ino_t_range (st64.st_ino)
+	  || ! in_off_t_range (st64.st_size)
+	  || ! in_blkcnt_t_range (st64.st_blocks))
+	return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+
+      /* Clear internal pad and reserved fields.  */
+      memset (buf, 0, sizeof (*buf));
+
+      buf->st_dev = st64.st_dev,
+      buf->st_ino = st64.st_ino;
+      buf->st_mode = st64.st_mode;
+      buf->st_nlink = st64.st_nlink;
+      buf->st_uid = st64.st_uid;
+      buf->st_gid = st64.st_gid;
+      buf->st_rdev = st64.st_rdev;
+      buf->st_size = st64.st_size;
+      buf->st_blksize = st64.st_blksize;
+      buf->st_blocks  = st64.st_blocks;
+      buf->st_atim.tv_sec = st64.st_atim.tv_sec;
+      buf->st_atim.tv_nsec = st64.st_atim.tv_nsec;
+      buf->st_mtim.tv_sec = st64.st_mtim.tv_sec;
+      buf->st_mtim.tv_nsec = st64.st_mtim.tv_nsec;
+      buf->st_ctim.tv_sec = st64.st_ctim.tv_sec;
+      buf->st_ctim.tv_nsec = st64.st_ctim.tv_nsec;
+    }
+  return r;
+#  else
+  /* 64-bit kabi outlier, e.g. mips64 and mips64-n32.  */
+  struct kernel_stat kst;
+  int r = INLINE_SYSCALL_CALL (newfstatat, fd, file, &kst, flag);
+  return r ?: __cp_kstat_stat (&kst, buf);
+#  endif /* __nr_fstatat64  */
+# endif /* STAT_IS_KERNEL_STAT  */
 }
 
 weak_alias (__fstatat, fstatat)