hurd: Do not hide rtld symbols which need to be preempted

	* sysdeps/generic/dl-fcntl.h: New file, adds attribute_hidden to __open
	and __fcntl.
	* sysdeps/mach/hurd/dl-fcntl.h: New file, adds attribute_hidden to
	__fcntl only.
	* include/fcntl.h [IS_IN (rtld)]: Include <dl-fcntl.h> instead of
	adding attribute_hidden to __open and __fcntl.

1 files changed, 22 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/dl-fcntl.h b/sysdeps/mach/hurd/dl-fcntl.h
new file mode 100644
index 0000000..c34bf12
--- /dev/null
+++ b/sysdeps/mach/hurd/dl-fcntl.h
@@ -0,0 +1,22 @@
+/* Functions with hidden attribute internal to ld.so, which are declared
+   in include/fcntl.h.  Hurd version.
+   Copyright (C) 2016 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/>.  */
+
+/* __open can't be hidden in ld.so on Hurd since it will be preempted by the
+   one in libc.so after bootstrap.  */
+extern __typeof (__fcntl) __fcntl attribute_hidden;