MFC r198450:

Implement _umtx_op_err() for ia64.

lib/libthr/arch/ia64/Makefile.inc

@@ -2,4 +2,4 @@
 
 .PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/${MACHINE_ARCH}
 
-SRCS+= pthread_md.c
+SRCS+= _umtx_op_err.S pthread_md.c

lib/libthr/arch/ia64/ia64/_umtx_op_err.S

@@ -0,0 +1,35 @@
+/*-
+ * Copyright (c) 2009 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/syscall.h>
+
+ENTRY(_umtx_op_err, 5)
+	CALLSYS_NOERROR(_umtx_op)
+	br.ret.sptk.few rp
+END(_umtx_op_err)

lib/libthr/arch/ia64/include/pthread_md.h

@@ -33,6 +33,8 @@
 
 #define	CPU_SPINWAIT
 
+#define	HAS__UMTX_OP_ERR	1
+
 #define	DTV_OFFSET		offsetof(struct tcb, tcb_dtv)
 
 /*