4 files changed, 164 insertions, 0 deletions
diff --git a/lib/isc/ia64/Makefile.in b/lib/isc/ia64/Makefile.in
new file mode 100644
index 0000000..419cf9f
--- /dev/null
+++ b/lib/isc/ia64/Makefile.in
@@ -0,0 +1,17 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+SUBDIRS =	include
+TARGETS =
+
+@BIND9_MAKE_RULES@
diff --git a/lib/isc/ia64/include/Makefile.in b/lib/isc/ia64/include/Makefile.in
new file mode 100644
index 0000000..d33c0fc
--- /dev/null
+++ b/lib/isc/ia64/include/Makefile.in
@@ -0,0 +1,17 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+SUBDIRS =	isc
+TARGETS =
+
+@BIND9_MAKE_RULES@
diff --git a/lib/isc/ia64/include/isc/Makefile.in b/lib/isc/ia64/include/isc/Makefile.in
new file mode 100644
index 0000000..97b6b41
--- /dev/null
+++ b/lib/isc/ia64/include/isc/Makefile.in
@@ -0,0 +1,34 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+VERSION=@BIND9_VERSION@
+
+HEADERS =	atomic.h
+
+SUBDIRS =
+TARGETS =
+
+@BIND9_MAKE_RULES@
+
+installdirs:
+	$(SHELL) ${top_srcdir}/mkinstalldirs ${DESTDIR}${includedir}/isc
+
+install:: installdirs
+	for i in ${HEADERS}; do \
+		${INSTALL_DATA} $(srcdir)/$$i ${DESTDIR}${includedir}/isc || exit 1; \
+	done
+
+uninstall::
+	for i in ${HEADERS}; do \
+		rm -f ${DESTDIR}${includedir}/isc/$$i || exit 1; \
+	done
diff --git a/lib/isc/ia64/include/isc/atomic.h b/lib/isc/ia64/include/isc/atomic.h
new file mode 100644
index 0000000..e2f4331
--- /dev/null
+++ b/lib/isc/ia64/include/isc/atomic.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+#ifndef ISC_ATOMIC_H
+#define ISC_ATOMIC_H 1
+
+#include <inttypes.h>
+
+#include <isc/platform.h>
+#include <isc/types.h>
+
+#ifdef ISC_PLATFORM_USEGCCASM
+/*
+ * This routine atomically increments the value stored in 'p' by 'val', and
+ * returns the previous value.
+ *
+ * Open issue: can 'fetchadd' make the code faster for some particular values
+ * (e.g., 1 and -1)?
+ */
+static inline int32_t
+#ifdef __GNUC__
+__attribute__ ((unused))
+#endif
+isc_atomic_xadd(int32_t *p, int32_t val)
+{
+	int32_t prev, swapped;
+
+	for (prev = *(volatile int32_t *)p; ; prev = swapped) {
+		swapped = prev + val;
+		__asm__ volatile(
+			"mov ar.ccv=%2;;"
+			"cmpxchg4.acq %0=%4,%3,ar.ccv"
+			: "=r" (swapped), "=m" (*p)
+			: "r" (prev), "r" (swapped), "m" (*p)
+			: "memory");
+		if (swapped == prev)
+			break;
+	}
+
+	return (prev);
+}
+
+/*
+ * This routine atomically stores the value 'val' in 'p'.
+ */
+static inline void
+#ifdef __GNUC__
+__attribute__ ((unused))
+#endif
+isc_atomic_store(int32_t *p, int32_t val)
+{
+	__asm__ volatile(
+		"st4.rel %0=%1"
+		: "=m" (*p)
+		: "r" (val)
+		: "memory"
+		);
+}
+
+/*
+ * This routine atomically replaces the value in 'p' with 'val', if the
+ * original value is equal to 'cmpval'.  The original value is returned in any
+ * case.
+ */
+static inline int32_t
+#ifdef __GNUC__
+__attribute__ ((unused))
+#endif
+isc_atomic_cmpxchg(int32_t *p, int32_t cmpval, int32_t val)
+{
+	int32_t ret;
+
+	__asm__ volatile(
+		"mov ar.ccv=%2;;"
+		"cmpxchg4.acq %0=%4,%3,ar.ccv"
+		: "=r" (ret), "=m" (*p)
+		: "r" (cmpval), "r" (val), "m" (*p)
+		: "memory");
+
+	return (ret);
+}
+#else /* !ISC_PLATFORM_USEGCCASM */
+
+#error "unsupported compiler.  disable atomic ops by --disable-atomic"
+
+#endif
+#endif /* ISC_ATOMIC_H */