Add win32-aarch64 to build.xml

build.xml

@@ -465,6 +465,8 @@ com/sun/jna/win32-x86/jnidispatch.dll;
 processor=x86;osname=win,
 com/sun/jna/win32-x86-64/jnidispatch.dll;
 processor=x86-64;osname=win,
+com/sun/jna/win32-aarch64/jnidispatch.dll;
+processor=aarch64;osname=win,
 com/sun/jna/w32ce-arm/jnidispatch.dll;
 processor=arm;osname=wince,
 
@@ -627,6 +629,9 @@ osname=macosx;processor=x86;processor=x86-64;processor=ppc
       <zipfileset src="${lib.native}/win32-x86-64.jar"
                   includes="*jnidispatch*"
                   prefix="com/sun/jna/win32-x86-64"/>
+      <zipfileset src="${lib.native}/win32-aarch64.jar"
+                  includes="*jnidispatch*"
+                  prefix="com/sun/jna/win32-aarch64"/>
       <zipfileset src="${lib.native}/w32ce-arm.jar"
                   includes="*jnidispatch*"
                   prefix="com/sun/jna/w32ce-arm"/>
@@ -784,6 +789,7 @@ osname=macosx;processor=x86;processor=x86-64;processor=ppc
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/darwin.jar" overwrite="true"/>
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/win32-x86.jar" overwrite="true"/>
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/win32-x86-64.jar" overwrite="true"/>
+    <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/win32-aarch64.jar" overwrite="true"/>
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/w32ce-arm.jar" overwrite="true"/>
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/linux-x86.jar" overwrite="true"/>
     <copy file="${lib.native}/out-of-date.jar" tofile="${lib.native}/linux-x86-64.jar" overwrite="true"/>
@@ -876,7 +882,7 @@ osname=macosx;processor=x86;processor=x86-64;processor=ppc
       <equals arg1="${os.prefix}" arg2="android-armv7"/>
     </condition>
     <condition property="ARCH" value="aarch64">
-      <equals arg1="${os.prefix}" arg2="android-aarch64"/>
+      <matches string="${os.prefix}" pattern="-aarch64$"/>
     </condition>
     <condition property="ARCH" value="x86">
       <equals arg1="${os.prefix}" arg2="android-x86"/>

native/Makefile

@@ -232,6 +232,12 @@ WINDRES=$(MINGW_PREFIX)windres
 MINGW=$(MINGW_PREFIX)gcc
 
 ifeq ($(USE_MSVC),true)
+ifeq ($(ARCH),aarch64)
+# Force $(CC) fallback; avoid arch mismatch
+WINDRES=false
+# Disable mingw; no aarch64 support
+MINGW=
+endif
 # MS compiler
 CC=$(FFI_SRC)/msvcc.sh
 CDEFINES+=-DHAVE_PROTECTION 
@@ -246,8 +252,15 @@ LIBS=psapi.lib
 ARSFX=.lib
 ifeq ($(ARCH),amd64)
 CC+= -m64
-endif
-FFI_CONFIG+= && rm -f include/ffitarget.h && cp $(FFI_SRC)/include/*.h $(FFI_SRC)/src/x86/ffitarget.h include
+FFI_TARGET=$(FFI_SRC)/src/x86/ffitarget.h
+else ifeq ($(ARCH),aarch64)
+CC+= -marm64
+FFI_CONFIG+=--host=aarch64-cygwin
+# Disable ASMFN for aarch64, don't bulid dll-callback.o
+DLLCB=$(BUILD)/callback.o
+endif
+FFI_TARGET?=$(FFI_SRC)/src/$(ARCH)/ffitarget.h
+FFI_CONFIG+= && rm -f include/ffitarget.h && cp $(FFI_SRC)/include/*.h $(FFI_TARGET) include
 FFI_ENV+=LD="$(LD)" CPP="$(CPP)" CXXCPP="$(CPP)"
 EXTRAOBJS+=$(DLLCB)
 
@@ -452,6 +465,10 @@ install:
 ifeq ($(ARCH), amd64)
 $(DLLCB): dll-callback.c 
 	$(MINGW) -DDEFINE_CALLBACKS -c $< $(COUT)
+else ifeq ($(ARCH), aarch64)
+# Build without ASMFN support
+$(DLLCB): callback.c
+	$(CC) -DDEFINE_CALLBACKS -DASMFN_OFF $(CINCLUDES) $(CDEFINES) -c $< $(COUT)
 endif
 
 $(RSRC): $(BUILD)/jnidispatch.rc $(BUILD)/$(JNA_JNI_VERSION).stamp

native/callback.c

@@ -51,7 +51,7 @@
 extern "C" {
 #endif
 
-#if defined(_WIN32) && !defined(_WIN32_WCE)
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(ASMFN_OFF)
 #include "com_sun_jna_win32_DLLCallback.h"
 #ifdef _WIN64
 #ifdef _MSC_VER

src/com/sun/jna/Platform.java

@@ -129,8 +129,9 @@ else if (osName.equalsIgnoreCase("netbsd")) {
         RO_FIELDS = osType != WINDOWSCE;
         C_LIBRARY_NAME = osType == WINDOWS ? "msvcrt" : osType == WINDOWSCE ? "coredll" : "c";
         MATH_LIBRARY_NAME = osType == WINDOWS ? "msvcrt" : osType == WINDOWSCE ? "coredll" : "m";
-        HAS_DLL_CALLBACKS = osType == WINDOWS;
         ARCH = getCanonicalArchitecture(System.getProperty("os.arch"), osType);
+        // Windows aarch64 callbacks disabled via ASMFN_OFF (no mingw support)
+        HAS_DLL_CALLBACKS = osType == WINDOWS && !ARCH.startsWith("aarch");
         RESOURCE_PREFIX = getNativeLibraryResourcePrefix();
     }
     private Platform() { }