Support 16 KB page sizes on Android (swiftlang#81596)

Android 15+ requires that native libraries be compiled with a linker
flag to support 16 KB page sizes. See:
https://developer.android.com/guide/practices/page-sizes#compile-r26-lower

Author: marcprux

stdlib/cmake/modules/AddSwiftStdlib.cmake

@@ -2504,6 +2504,8 @@ function(add_swift_target_library name)
         list(APPEND swiftlib_link_flags_all "-shared")
         # TODO: Instead of `lib${name}.so` find variable or target property which already have this value.
         list(APPEND swiftlib_link_flags_all "-Wl,-soname,lib${name}.so")
+        # Ensure compatibility with Android 15+ devices using 16KB memory pages.
+        list(APPEND swiftlib_link_flags_all "-Wl,-z,max-page-size=16384")
       endif()
 
       if (SWIFTLIB_BACK_DEPLOYMENT_LIBRARY)

utils/swift_build_support/swift_build_support/targets.py

@@ -164,7 +164,8 @@ def swift_flags(self, args):
         android_toolchain_path = self.ndk_toolchain_path(args)
 
         flags += '-sdk %s/sysroot ' % (android_toolchain_path)
-        flags += '-tools-directory %s/bin' % (android_toolchain_path)
+        flags += '-tools-directory %s/bin ' % (android_toolchain_path)
+        flags += '-Xclang-linker -Wl,-z,max-page-size=16384'
         return flags
 
     def cmake_options(self, args):