From 08734ccd983c4d048ef812d181d5ea9a8860ae45 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@hack.frob.com>
Date: Thu, 8 Jan 2015 15:31:15 -0800
Subject: Clean up allocrtsig code.

---
 sysdeps/nptl/allocrtsig.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 sysdeps/nptl/allocrtsig.c

(limited to 'sysdeps/nptl/allocrtsig.c')

diff --git a/sysdeps/nptl/allocrtsig.c b/sysdeps/nptl/allocrtsig.c
new file mode 100644
index 0000000000..6b1c5b2e33
--- /dev/null
+++ b/sysdeps/nptl/allocrtsig.c
@@ -0,0 +1,49 @@
+/* Handle real-time signal allocation.  NPTL version.
+   Copyright (C) 2015 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 <nptl/pthreadP.h>
+
+/* Up to three special signals might be used privately by libpthread.
+   Figure out how many unique ones are actually used.  */
+
+#ifdef SIGCANCEL
+# define SIGCANCEL_CONSUMES     1
+#else
+# define SIGCANCEL_CONSUMES     0
+#endif
+
+#if defined SIGTIMER && (!defined SIGCANCEL || SIGTIMER != SIGCANCEL)
+# define SIGTIMER_CONSUMES      1
+#else
+# define SIGTIMER_CONSUMES      0
+#endif
+
+#if (defined SIGSETXID \
+     && (!defined SIGCANCEL || SIGSETXID != SIGCANCEL) \
+     && (!defined SIGTIMER || SIGSETXID != SIGTIMER))
+# define SIGSETXID_CONSUMES     1
+#else
+# define SIGSETXID_CONSUMES     0
+#endif
+
+/* This tells the generic code (included below) how many signal
+   numbers need to be reserved for libpthread's private uses.  */
+#define RESERVED_SIGRT          \
+  (SIGCANCEL_CONSUMES + SIGTIMER_CONSUMES + SIGSETXID_CONSUMES)
+
+#include <signal/allocrtsig.c>
-- 
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