SwiftRemoteMirror: add a host build for the tools

cmake/modules/AddSwift.cmake

@@ -2136,6 +2136,10 @@ function(_add_swift_executable_single name)
         "${SWIFTEXE_SINGLE_LINK_FAT_LIBRARIES}"
         "-${SWIFT_SDK_${SWIFTEXE_SINGLE_SDK}_LIB_SUBDIR}"
         SWIFTEXE_SINGLE_LINK_FAT_LIBRARIES_TARGETS)
+    _list_add_string_suffix(
+        "${SWIFTEXE_SINGLE_LINK_FAT_LIBRARIES}"
+        "-${SWIFT_SDK_${SWIFTEXE_SINGLE_SDK}_LIB_SUBDIR}-${SWIFTEXE_SINGLE_ARCHITECTURE}"
+        SWIFTEXE_SINGLE_LINK_FAT_LIBRARIES)
   else()
     _list_add_string_suffix(
         "${SWIFTEXE_SINGLE_LINK_FAT_LIBRARIES}"

stdlib/public/SwiftRemoteMirror/CMakeLists.txt

@@ -1,15 +1,36 @@
 # libswiftRemoteMirror.dylib should not have runtime dependencies; it's
 # always built as a shared library.
-if(SWIFT_BUILD_DYNAMIC_STDLIB OR SWIFT_BUILD_REMOTE_MIRROR)
+if(SWIFT_BUILD_DYNAMIC_STDLIB)
   add_swift_target_library(swiftRemoteMirror
-                    SHARED TARGET_LIBRARY DONT_EMBED_BITCODE NOSWIFTRT
-                    SwiftRemoteMirror.cpp
-                    LINK_LIBRARIES
-                      swiftReflection
-                    C_COMPILE_FLAGS
-                      ${SWIFT_RUNTIME_CXX_FLAGS} -DswiftRemoteMirror_EXPORTS
-                    LINK_FLAGS
-                      ${SWIFT_RUNTIME_LINK_FLAGS}
-                    INSTALL_IN_COMPONENT
-                      swift-remote-mirror)
+                           SHARED TARGET_LIBRARY DONT_EMBED_BITCODE NOSWIFTRT
+                           SwiftRemoteMirror.cpp
+                           LINK_LIBRARIES
+                             swiftReflection
+                           C_COMPILE_FLAGS
+                             ${SWIFT_RUNTIME_CXX_FLAGS} -DswiftRemoteMirror_EXPORTS
+                           LINK_FLAGS
+                             ${SWIFT_RUNTIME_LINK_FLAGS}
+                           INSTALL_IN_COMPONENT
+                             swift-remote-mirror)
 endif()
+
+# Build a specific version for the host with the host toolchain.  This is going
+# to be used by tools (e.g. lldb)
+if(SWIFT_INCLUDE_TOOLS)
+  if(NOT SWIFT_BUILD_DYNAMIC_STDLIB)
+    add_custom_target(swiftRemoteMirror-${SWIFT_SDK_${SWIFT_HOST_VARIANT_SDK}_LIB_SUBDIR})
+  endif()
+
+  if(NOT SWIFT_BUILD_RUNTIME_WITH_HOST_COMPILER)
+    set(CMAKE_C_COMPILER ${HOST_CMAKE_C_COMPILER})
+    set(CMAKE_CXX_COMPILER ${HOST_CMAKE_CXX_COMPILER})
+  endif()
+
+  add_swift_host_library(swiftRemoteMirror STATIC
+    SwiftRemoteMirror.cpp)
+  target_compile_options(swiftRemoteMirror PRIVATE
+    ${SWIFT_RUNTIME_CXX_FLAGS})
+  set_property(TARGET swiftRemoteMirror APPEND_STRING PROPERTY LINK_FLAGS
+    ${SWIFT_RUNTIME_LINK_FLAGS})
+endif()
+

stdlib/tools/swift-reflection-test/CMakeLists.txt

@@ -2,5 +2,6 @@ add_swift_target_executable(swift-reflection-test BUILD_WITH_STDLIB
   swift-reflection-test.c
   overrides.c
   LINK_FAT_LIBRARIES
-    swiftRemoteMirror)
+    swiftRemoteMirror
+    swiftReflection)