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src/java.base/share/classes/jdk/internal/foreign/abi/x64/windows/Windowsx64Linker.java

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 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package jdk.internal.foreign.abi.x64.windows;
26 
27 import jdk.internal.foreign.abi.AbstractLinker;
28 import jdk.internal.foreign.abi.LinkerOptions;

29 
30 import java.lang.foreign.FunctionDescriptor;


31 import java.lang.invoke.MethodHandle;
32 import java.lang.invoke.MethodType;
33 import java.nio.ByteOrder;

34 
35 /**
36  * ABI implementation based on Windows ABI AMD64 supplement v.0.99.6
37  */
38 public final class Windowsx64Linker extends AbstractLinker {
39 



40     public static Windowsx64Linker getInstance() {
41         final class Holder {
42             private static final Windowsx64Linker INSTANCE = new Windowsx64Linker();
43         }
44 
45         return Holder.INSTANCE;
46     }
47 
48     private Windowsx64Linker() {
49         // Ensure there is only one instance
50     }
51 
52     @Override
53     protected MethodHandle arrangeDowncall(MethodType inferredMethodType, FunctionDescriptor function, LinkerOptions options) {
54         return CallArranger.arrangeDowncall(inferredMethodType, function, options);
55     }
56 
57     @Override
58     protected UpcallStubFactory arrangeUpcall(MethodType targetType, FunctionDescriptor function, LinkerOptions options) {
59         return CallArranger.arrangeUpcall(targetType, function, options);
60     }
61 
62     @Override
63     protected ByteOrder linkerByteOrder() {
64         return ByteOrder.LITTLE_ENDIAN;
65     }





66 }

 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package jdk.internal.foreign.abi.x64.windows;
26 
27 import jdk.internal.foreign.abi.AbstractLinker;
28 import jdk.internal.foreign.abi.LinkerOptions;
29 import jdk.internal.foreign.abi.SharedUtils;
30 
31 import java.lang.foreign.FunctionDescriptor;
32 import java.lang.foreign.MemoryLayout;
33 import java.lang.foreign.ValueLayout;
34 import java.lang.invoke.MethodHandle;
35 import java.lang.invoke.MethodType;
36 import java.nio.ByteOrder;
37 import java.util.Map;
38 
39 /**
40  * ABI implementation based on Windows ABI AMD64 supplement v.0.99.6
41  */
42 public final class Windowsx64Linker extends AbstractLinker {
43 
44     static final Map<String, MemoryLayout> CANONICAL_LAYOUTS =
45             SharedUtils.canonicalLayouts(ValueLayout.JAVA_INT, ValueLayout.JAVA_LONG, ValueLayout.JAVA_CHAR);
46 
47     public static Windowsx64Linker getInstance() {
48         final class Holder {
49             private static final Windowsx64Linker INSTANCE = new Windowsx64Linker();
50         }
51 
52         return Holder.INSTANCE;
53     }
54 
55     private Windowsx64Linker() {
56         // Ensure there is only one instance
57     }
58 
59     @Override
60     protected MethodHandle arrangeDowncall(MethodType inferredMethodType, FunctionDescriptor function, LinkerOptions options) {
61         return CallArranger.arrangeDowncall(inferredMethodType, function, options);
62     }
63 
64     @Override
65     protected UpcallStubFactory arrangeUpcall(MethodType targetType, FunctionDescriptor function, LinkerOptions options) {
66         return CallArranger.arrangeUpcall(targetType, function, options);
67     }
68 
69     @Override
70     protected ByteOrder linkerByteOrder() {
71         return ByteOrder.LITTLE_ENDIAN;
72     }
73 
74     @Override
75     public Map<String, MemoryLayout> canonicalLayouts() {
76         return CANONICAL_LAYOUTS;
77     }
78 }
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