hurd: Add hurd thread library

Contributed by

Agustina Arzille <avarzille@riseup.net>
Amos Jeffries <squid3@treenet.co.nz>
David Michael <fedora.dm0@gmail.com>
Marco Gerards <marco@gnu.org>
Marcus Brinkmann <marcus@gnu.org>
Neal H. Walfield <neal@gnu.org>
Pino Toscano <toscano.pino@tiscali.it>
Richard Braun <rbraun@sceen.net>
Roland McGrath <roland@gnu.org>
Samuel Thibault <samuel.thibault@ens-lyon.org>
Thomas DiModica <ricinwich@yahoo.com>
Thomas Schwinge <tschwinge@gnu.org>

	* htl: New directory.
	* sysdeps/htl: New directory.
	* sysdeps/hurd/htl: New directory.
	* sysdeps/i386/htl: New directory.
	* sysdeps/mach/htl: New directory.
	* sysdeps/mach/hurd/htl: New directory.
	* sysdeps/mach/hurd/i386/htl: New directory.
	* nscd/Depend, resolv/Depend, rt/Depend: Add htl dependency.
	* sysdeps/mach/hurd/i386/Implies: Add mach/hurd/i386/htl imply.
	* sysdeps/mach/hurd/i386/libpthread.abilist: New file.

1 files changed, 50 insertions, 0 deletions

diff --git a/sysdeps/htl/bits/cancelation.h b/sysdeps/htl/bits/cancelation.h
new file mode 100644
index 0000000000..56cf1af154
--- /dev/null
+++ b/sysdeps/htl/bits/cancelation.h
@@ -0,0 +1,50 @@
+/* Cancelation.  Generic version.
+   Copyright (C) 2002-2018 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_CANCELATION_H
+#define _BITS_CANCELATION_H	1
+
+struct __pthread_cancelation_handler
+{
+  void (*__handler) (void *);
+  void *__arg;
+  struct __pthread_cancelation_handler *__next;
+};
+
+/* Returns the thread local location of the cleanup handler stack.  */
+struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void);
+
+#define __pthread_cleanup_push(rt, rtarg) \
+	{ \
+	  struct __pthread_cancelation_handler **__handlers \
+	    = __pthread_get_cleanup_stack (); \
+	  struct __pthread_cancelation_handler __handler = \
+	    { \
+	      (rt), \
+	      (rtarg), \
+	      *__handlers \
+	    }; \
+	  *__handlers = &__handler;
+
+#define __pthread_cleanup_pop(execute) \
+	  if (execute) \
+	    __handler.__handler (__handler.__arg); \
+	  *__handlers = __handler.__next; \
+	}
+
+#endif /* _BITS_CANCELATION_H */