make/autoconf/platform.m4

8248238: Adding Windows support to OpenJDK on AArch64

Summary: Adding Windows support for AArch64

Contributed-by: Ludovic Henry <luhenry@microsoft.com>, Monica Beckwith <monica.beckwith@microsoft.com>
Reviewed-by:

@@ -374,20 +374,24 @@
     # Avoid name collisions with variables named alpha
     OPENJDK_$1_CPU_LEGACY="_alpha_"
   elif test "x$OPENJDK_$1_CPU" = xsh; then
     # Avoid name collisions with variables named sh
     OPENJDK_$1_CPU_LEGACY="_sh_"
+  elif test "x$OPENJDK_$1_CPU" = xaarch64; then
+    OPENJDK_$1_CPU_LEGACY="arm64"
   fi
   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 
   # And the second legacy naming of the cpu.
   # Ie i386 and amd64 instead of x86 and x86_64.
   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
   if test "x$OPENJDK_$1_CPU" = xx86; then
     OPENJDK_$1_CPU_LEGACY_LIB="i386"
   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
+  elif test "x$OPENJDK_$1_CPU" = xaarch64; then
+    OPENJDK_$1_CPU_LEGACY_LIB="arm64"
   fi
   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 
   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"

@@ -531,10 +535,12 @@
     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
   fi
 
   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
+  elif test "x$OPENJDK_TARGET_CPU" = xaarch64; then
+    OPENJDK_MODULE_TARGET_OS_ARCH="arm64"    
   else
     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
   fi
 
   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"