--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os_cpu/linux_zero/vm/os_linux_zero.hpp Tue Oct 13 12:04:21 2009 -0700
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 2007, 2008 Red Hat, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+ static void setup_fpu() {}
+
+ static bool is_allocatable(size_t bytes);
+
+ // Used to register dynamic code cache area with the OS
+ // Note: Currently only used in 64 bit Windows implementations
+ static bool register_code_area(char *low, char *high) { return true; }
+
+ // Atomically copy 64 bits of data
+ static void atomic_copy64(volatile void *src, volatile void *dst) {
+#if defined(PPC) && !defined(_LP64)
+ double tmp;
+ asm volatile ("lfd %0, 0(%1)\n"
+ "stfd %0, 0(%2)\n"
+ : "=f"(tmp)
+ : "b"(src), "b"(dst));
+#else
+ *(jlong *) dst = *(jlong *) src;
+#endif // PPC && !_LP64
+ }