1 files changed, 53 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/lseek64.c b/sysdeps/unix/sysv/linux/lseek64.c
index d81e98fb51..2ad6a610c8 100644
--- a/sysdeps/unix/sysv/linux/lseek64.c
+++ b/sysdeps/unix/sysv/linux/lseek64.c
@@ -1 +1,53 @@
-/* We don't need a definition since the llseek function is what we need.  */
+/* Linux lseek implementation, 64 bits off_t.
+   Copyright (C) 2016-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sysdep.h>
+#include <errno.h>
+#include <shlib-compat.h>
+
+off64_t
+__lseek64 (int fd, off64_t offset, int whence)
+{
+#ifdef __NR__llseek
+  loff_t res;
+  int rc = INLINE_SYSCALL_CALL (_llseek, fd,
+				(long) (((uint64_t) (offset)) >> 32),
+				(long) offset, &res, whence);
+  return rc ?: res;
+#else
+  return INLINE_SYSCALL_CALL (lseek, fd, offset, whence);
+#endif
+}
+
+#ifdef  __OFF_T_MATCHES_OFF64_T
+weak_alias (__lseek64, lseek)
+weak_alias (__lseek64, __lseek)
+strong_alias (__lseek64, __libc_lseek)
+libc_hidden_def (__lseek)
+#endif
+
+strong_alias (__lseek64, __libc_lseek64)
+weak_alias (__lseek64, lseek64)
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_28)
+strong_alias (__lseek64, __compat_llseek)
+compat_symbol (libc, __compat_llseek, llseek, GLIBC_2_0);
+#endif