add Alpha support

And you already know what needs to be special-cased for Alpha...

[edit by Mathieu Desnoyers]

defaults -> generic

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/configure.ac b/configure.ac
index ab6f3a2920f5a5d25676d30728c0da2f67b8b501..1ce19d0c51b6fbc56ec0a019e3c60cecb2899d57 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -50,6 +50,7 @@ case $host_cpu in
        s390) ARCHTYPE="s390" ;;
        s390x) ARCHTYPE="s390" ;;
        sparc64) ARCHTYPE="sparc64" ;;
+       alpha*) ARCHTYPE="alpha" ;;
        *) ARCHTYPE="unknown";;
 esac
 

diff --git a/urcu/arch_alpha.h b/urcu/arch_alpha.h
new file mode 100644 (file)
index 0000000..c9d4923
--- /dev/null
+++ b/urcu/arch_alpha.h
@@ -0,0 +1,48 @@
+#ifndef _URCU_ARCH_ALPHA_H
+#define _URCU_ARCH_ALPHA_H
+
+/*
+ * arch_alpha.h: trivial definitions for the Alpha architecture.
+ *
+ * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This 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.
+*
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/config.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define mb()                   asm volatile("mb":::"memory")
+#define wmb()                  asm volatile("wmb":::"memory")
+#define read_barrier_depends() asm volatile("mb":::"memory")
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+       return 0;       /* not supported */
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <urcu/arch_generic.h>
+
+#endif /* _URCU_ARCH_ALPHA_H */

diff --git a/urcu/uatomic_arch_alpha.h b/urcu/uatomic_arch_alpha.h
new file mode 100644 (file)
index 0000000..0f795e8
--- /dev/null
+++ b/urcu/uatomic_arch_alpha.h
@@ -0,0 +1,32 @@
+#ifndef _URCU_UATOMIC_ARCH_ALPHA_H
+#define _URCU_UATOMIC_ARCH_ALPHA_H
+
+/*
+ * Atomic exchange operations for the Alpha architecture. Let GCC do it.
+ *
+ * Copyright (c) 2010 Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <urcu/compiler.h>
+#include <urcu/system.h>
+#include <urcu/uatomic_generic.h>
+
+#endif /* _URCU_UATOMIC_ARCH_ALPHA_H */