--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os_cpu/solaris_x86/vm/bytes_solaris_x86.inline.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,111 @@
+/*
+ * Copyright 1998-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * 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.
+ *
+ */
+
+// For Sun Studio - implementation is in solaris_i486.il.
+// For gcc - implementation is just below.
+extern "C" u2 _raw_swap_u2(u2 x);
+extern "C" u4 _raw_swap_u4(u4 x);
+#ifdef AMD64
+extern "C" u8 _raw_swap_u8(u8 x);
+#else
+extern "C" u8 _raw_swap_u8(u4 x, u4 y);
+#endif // AMD64
+
+// Efficient swapping of data bytes from Java byte
+// ordering to native byte ordering and vice versa.
+inline u2   Bytes::swap_u2(u2 x) {
+  return _raw_swap_u2(x);
+}
+
+inline u4   Bytes::swap_u4(u4 x) {
+  return _raw_swap_u4(x);
+}
+
+inline u8   Bytes::swap_u8(u8 x) {
+#ifdef AMD64
+  return _raw_swap_u8(x);
+#else
+  return swap_u8_base(*(u4*)&x, *(((u4*)&x)+1));
+#endif // AMD64
+
+}
+
+#ifndef AMD64
+// Helper function for swap_u8
+inline u8   Bytes::swap_u8_base(u4 x, u4 y) {
+  return _raw_swap_u8(x, y);
+}
+#endif // !AMD64
+
+
+#ifdef _GNU_SOURCE
+
+extern "C" {
+#ifdef AMD64
+  inline u2 _raw_swap_u2(u2 x) {
+    register unsigned short int __dest;
+    __asm__ ("rorw $8, %w0": "=r" (__dest): "0" (x): "cc");
+    return __dest;
+  }
+  inline u4 _raw_swap_u4(u4 x) {
+    register unsigned int __dest;
+    __asm__ ("bswap %0" : "=r" (__dest) : "0" (x));
+    return __dest;
+  }
+  inline u8 _raw_swap_u8(u8 x) {
+    register unsigned long  __dest;
+    __asm__ ("bswap %q0" : "=r" (__dest) : "0" (x));
+    return __dest;
+  }
+#else
+  inline u2 _raw_swap_u2(u2 x) {
+    u2 ret;
+    __asm__ __volatile__ (
+      "movw %0, %%ax;"
+      "xchg %%al, %%ah;"
+      "movw %%ax, %0"
+      :"=r" (ret)      // output : register 0 => ret
+      :"0"  (x)        // input  : x => register 0
+      :"ax", "0"       // clobbered registers
+    );
+    return ret;
+  }
+
+  inline u4 _raw_swap_u4(u4 x) {
+    u4 ret;
+    __asm__ __volatile__ (
+      "bswap %0"
+      :"=r" (ret)      // output : register 0 => ret
+      :"0"  (x)        // input  : x => register 0
+      :"0"             // clobbered register
+    );
+    return ret;
+  }
+
+  inline u8 _raw_swap_u8(u4 x, u4 y) {
+    return (((u8)_raw_swap_u4(x))<<32) | _raw_swap_u4(y);
+  }
+#endif // AMD64
+}
+#endif  //_GNU_SOURCE