1 files changed, 71 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/pread64.c b/nptl/sysdeps/unix/sysv/linux/pread64.c
new file mode 100644
index 0000000000..5abe5d1813
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/pread64.c
@@ -0,0 +1,71 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <bp-checks.h>
+#include <nptl/pthreadP.h>
+#include <tls.h>
+
+
+#ifndef __NR_pread64		/* Newer kernels renamed but it's the same.  */
+# error "__NR_pread64 must be defined"
+#endif
+
+
+/* The order of hi, lo depends on endianness.  */
+extern ssize_t __syscall_pread64 (int fd, void *__unbounded buf, size_t count,
+				  off_t offset_hi, off_t offset_lo);
+
+
+ssize_t
+__libc_pread64 (fd, buf, count, offset)
+     int fd;
+     void *buf;
+     size_t count;
+     off64_t offset;
+{
+#ifndef NOT_IN_libc
+  if (__builtin_expect (THREAD_GETMEM (THREAD_SELF,
+				       header.data.multiple_threads) == 0, 1))
+    return INLINE_SYSCALL (pread64, 5, fd, CHECK_N (buf, count), count,
+			   __LONG_LONG_PAIR ((off_t) (offset >> 32),
+					     (off_t) (offset & 0xffffffff)));
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+#endif
+
+  ssize_t result = INLINE_SYSCALL (pread64, 5, fd, CHECK_N (buf, count), count,
+				   __LONG_LONG_PAIR ((off_t) (offset >> 32),
+						     (off_t) (offset
+							      & 0xffffffff)));
+
+#ifndef NOT_IN_libc
+  LIBC_CANCEL_RESET (oldtype);
+#endif
+
+  return result;
+}
+
+weak_alias (__libc_pread64, __pread64)
+weak_alias (__libc_pread64, pread64)