Use 16KB max page size on Android. (#1248)

* Use `16KB` max page size on Android.

* Tiny adjustments.

* Oops, forgot to add it here.

* Add `HXCPP_ANDROID_NO_16K_PAGES`.

Author: MAJigsaw77

toolchain/android-toolchain-clang.xml

@@ -89,6 +89,15 @@
   <!-- Build time error, not run time -->
   <flag value="-Wl,--no-undefined" unless="HXCPP_ALLOW_UNDEFINED" />
 
+  <!-- Disable 16KB page alignment workaround when explicitly requested -->
+  <section unless="HXCPP_ANDROID_NO_16K_PAGES">
+    <!-- Enable 16KB page size for NDK r27 and below -->
+    <flag value="-Wl,-z,max-page-size=16384" unless="NDKV28+" />
+
+    <!-- Extra 16KB alignment workaround for NDK r22 and below -->
+    <flag value="-Wl,-z,common-page-size=16384" unless="NDKV23+" />
+  </section>
+
   <flag value="-stdlib=libc++" unless="NDKV20+" />
   <flag value ="-static-libstdc++" />
   <!-- This shows the android link line, which may be so long that it breaks the tool

toolchain/android-toolchain-gcc.xml

@@ -178,6 +178,10 @@
   </section>
   <flag value="-Wl,--no-undefined" unless="dll_import" />
   <flag value="-Wl,--unresolved-symbols=ignore-in-object-files" if="dll_import" />
+  <section unless="HXCPP_ANDROID_NO_16K_PAGES">
+	<flag value="-Wl,-z,max-page-size=16384" />
+	<flag value="-Wl,-z,common-page-size=16384" />
+  </section>
   <flag value="-Wl,-z,noexecstack"/>
   <flag value="--sysroot=${ANDROID_NDK_ROOT}/platforms/${PLATFORM}/${PLATFORM_ARCH}"/>
   <flag value="-L${ANDROID_NDK_ROOT}/platforms/${PLATFORM}/${PLATFORM_ARCH}/usr/lib"/>
@@ -217,6 +221,10 @@
   <flag value="-std=c++11" if="HXCPP_CPP11"/>
   <flag value="-Wl,--no-undefined" unless="dll_import" />
   <flag value="-Wl,--unresolved-symbols=ignore-in-object-files" if="dll_import" />
+  <section unless="HXCPP_ANDROID_NO_16K_PAGES">
+	<flag value="-Wl,-z,max-page-size=16384" />
+	<flag value="-Wl,-z,common-page-size=16384" />
+  </section>
   <flag value="-Wl,-z,noexecstack"/>
   <flag value="--sysroot=${ANDROID_NDK_ROOT}/platforms/${PLATFORM}/${PLATFORM_ARCH}"/>
   <flag value="-L${ANDROID_NDK_ROOT}/platforms/${PLATFORM}/${PLATFORM_ARCH}/usr/lib"/>