9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_X86_VM_BYTES_X86_HPP
  26 #define CPU_X86_VM_BYTES_X86_HPP
  27 
  28 #include "memory/allocation.hpp"

  29 #include "utilities/macros.hpp"
  30 
  31 class Bytes: AllStatic {
  32  private:
  33 #ifndef AMD64
  34   // Helper function for swap_u8
  35   static inline u8   swap_u8_base(u4 x, u4 y);        // compiler-dependent implementation
  36 #endif // AMD64
  37 
  38  public:
  39   // Efficient reading and writing of unaligned unsigned data in platform-specific byte ordering
  40   template <typename T>
  41   static inline T get_native(const void* p) {
  42     assert(p != NULL, "null pointer");
  43 
  44     T x;
  45 
  46     if (is_aligned(p, sizeof(T))) {
  47       x = *(T*)p;
  48     } else {

   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_X86_VM_BYTES_X86_HPP
  26 #define CPU_X86_VM_BYTES_X86_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "utilities/align.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 class Bytes: AllStatic {
  33  private:
  34 #ifndef AMD64
  35   // Helper function for swap_u8
  36   static inline u8   swap_u8_base(u4 x, u4 y);        // compiler-dependent implementation
  37 #endif // AMD64
  38 
  39  public:
  40   // Efficient reading and writing of unaligned unsigned data in platform-specific byte ordering
  41   template <typename T>
  42   static inline T get_native(const void* p) {
  43     assert(p != NULL, "null pointer");
  44 
  45     T x;
  46 
  47     if (is_aligned(p, sizeof(T))) {
  48       x = *(T*)p;
  49     } else {