Merge pull request swiftlang#23742 from xiaobai/android_compiler

Author: swift-ci

CMakeLists.txt

@@ -572,6 +572,8 @@ else()
     set(SWIFT_HOST_VARIANT_SDK_default "WINDOWS")
   elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Haiku")
     set(SWIFT_HOST_VARIANT_SDK_default "HAIKU")
+  elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Android")
+    set(SWIFT_HOST_VARIANT_SDK_default "ANDROID")
   elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
     set(SWIFT_HOST_VARIANT_SDK_default "OSX")
   else()
@@ -696,6 +698,15 @@ elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "HAIKU")
   set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
   set(SWIFT_PRIMARY_VARIANT_ARCH_default "${SWIFT_HOST_VARIANT_ARCH}")
 
+elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "ANDROID")
+
+  set(SWIFT_HOST_VARIANT "android" CACHE STRING
+      "Deployment OS for Swift host tools (the compiler) [android].")
+
+  configure_sdk_unix("Android" "${SWIFT_HOST_VARIANT_ARCH}")
+  set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
+  set(SWIFT_PRIMARY_VARIANT_ARCH_default "${SWIFT_HOST_VARIANT_ARCH}")
+
 elseif("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
 
   set(SWIFT_HOST_VARIANT "macosx" CACHE STRING
@@ -740,7 +751,10 @@ endif()
 
 # Should we cross-compile the standard library for Android?
 is_sdk_requested(ANDROID swift_build_android)
-if(swift_build_android AND NOT "${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")
+if(swift_build_android AND NOT "${SWIFT_HOST_VARIANT_SDK}" STREQUAL "ANDROID")
+  if ("${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")
+    message(FATAL_ERROR "You must set SWIFT_ANDROID_NDK_PATH to cross-compile the Swift runtime for Android")
+  endif()
   if (NOT ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Darwin" OR "${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux"))
     message(FATAL_ERROR "A Darwin or Linux host is required to build the Swift runtime for Android")
   endif()

cmake/modules/AddSwift.cmake

@@ -467,12 +467,14 @@ function(_add_variant_link_flags)
   endif()
 
   if(NOT "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_UC}" STREQUAL "")
-    get_filename_component(SWIFT_${sdk}_${arch}_ICU_UC_LIBDIR "${SWIFT_${sdk}_${arch}_ICU_UC}" DIRECTORY)
-    list(APPEND library_search_directories "${SWIFT_${sdk}_${arch}_ICU_UC_LIBDIR}")
+    get_filename_component(SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_UC_LIBDIR
+      "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_UC}" DIRECTORY)
+    list(APPEND library_search_directories "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_UC_LIBDIR}")
   endif()
   if(NOT "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_I18N}" STREQUAL "")
-    get_filename_component(SWIFT_${sdk}_${arch}_ICU_I18N_LIBDIR "${SWIFT_${sdk}_${arch}_ICU_I18N}" DIRECTORY)
-    list(APPEND library_search_directories "${SWIFT_${sdk}_${arch}_ICU_I18N_LIBDIR}")
+    get_filename_component(SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_I18N_LIBDIR
+      "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_I18N}" DIRECTORY)
+    list(APPEND library_search_directories "${SWIFT_${LFLAGS_SDK}_${LFLAGS_ARCH}_ICU_I18N_LIBDIR}")
   endif()
 
   if(NOT SWIFT_COMPILER_IS_MSVC_LIKE)

tools/SourceKit/cmake/modules/AddSwiftSourceKit.cmake

@@ -66,7 +66,9 @@ function(add_sourcekit_default_compiler_flags target)
     ENABLE_LTO "${SWIFT_TOOLS_ENABLE_LTO}"
     LTO_OBJECT_NAME "${target}-${sdk}-${arch}"
     ANALYZE_CODE_COVERAGE "${analyze_code_coverage}"
-    RESULT_VAR_NAME link_flags)
+    RESULT_VAR_NAME link_flags
+    LINK_LIBRARIES_VAR_NAME link_libraries
+    LIBRARY_SEARCH_DIRECTORIES_VAR_NAME library_search_directories)
 
   # Convert variables to space-separated strings.
   _list_escape_for_shell("${c_compile_flags}" c_compile_flags)
@@ -77,6 +79,8 @@ function(add_sourcekit_default_compiler_flags target)
       COMPILE_FLAGS " ${c_compile_flags} -fblocks")
   set_property(TARGET "${target}" APPEND_STRING PROPERTY
       LINK_FLAGS " ${link_flags}")
+  set_property(TARGET "${target}" APPEND PROPERTY LINK_LIBRARIES ${link_libraries})
+  swift_target_link_search_directories("${target}" "${library_search_directories}")
 endfunction()
 
 # Add a new SourceKit library.