Add 64-bit windows cross-compiles

This is mostly the same as the existing 2ND_HOST / HOST_CROSS support.

The interesting thing I did here was make x86 the 'first' architecture,
and x86_64 the second. This way LOCAL_MULTILIB := first defaults to
32-bit windows modules.

  windows-x86/bin   <- defaults to 32-bit executables
  windows-x86/lib   <- 32-bit libraries, like before
  windows-x86/lib64 <- 64-bit libraries
  windows-x86/obj   <- 32-bit intermediates
  windows-x86/obj64 <- 64-bit intermediates

Then modules are registered with the names:

  host_cross_liblog    <- 32-bit, like before
  host_cross_liblog_64 <- 64-bit

Bug: 26957718
Change-Id: I9f119411acb43e973ec1e6bca3c1dc291c91556c

13 files changed, 235 insertions, 15 deletions

diff --git a/core/base_rules.mk b/core/base_rules.mk
index fcf35496f2..2fe0616eac 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -168,14 +168,14 @@ ifneq ($(strip $(LOCAL_BUILT_MODULE)$(LOCAL_INSTALLED_MODULE)),)
 endif
 
 my_register_name := $(LOCAL_MODULE)
+ifeq ($(my_host_cross),true)
+  my_register_name := host_cross_$(LOCAL_MODULE)
+endif
 ifdef LOCAL_2ND_ARCH_VAR_PREFIX
 ifndef LOCAL_NO_2ND_ARCH_MODULE_SUFFIX
-my_register_name := $(LOCAL_MODULE)$($(my_prefix)2ND_ARCH_MODULE_SUFFIX)
+my_register_name := $(my_register_name)$($(my_prefix)2ND_ARCH_MODULE_SUFFIX)
 endif
 endif
-ifeq ($(my_host_cross),true)
-  my_register_name := host_cross_$(LOCAL_MODULE)
-endif
 # Make sure that this IS_HOST/CLASS/MODULE combination is unique.
 module_id := MODULE.$(if \
     $(LOCAL_IS_HOST_MODULE),$($(my_prefix)OS),TARGET).$(LOCAL_MODULE_CLASS).$(my_register_name)
diff --git a/core/clang/HOST_CROSS_windows.mk b/core/clang/HOST_CROSS_x86.mk
index 74adb58422..b78a0743bb 100644
--- a/core/clang/HOST_CROSS_windows.mk
+++ b/core/clang/HOST_CROSS_x86.mk
@@ -37,20 +37,20 @@ CLANG_CONFIG_x86_HOST_CROSS_EXTRA_LDFLAGS := \
   $(CLANG_CONFIG_x86_HOST_CROSS_COMBO_EXTRA_LDFLAGS) \
   -target $(CLANG_CONFIG_x86_HOST_CROSS_TRIPLE)
 
-CLANG_HOST_CROSS_GLOBAL_CFLAGS := \
-  $(call convert-to-host-clang-flags,$(HOST_CROSS_GLOBAL_CFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CFLAGS)) \
   $(CLANG_CONFIG_x86_HOST_CROSS_EXTRA_CFLAGS)
 
-CLANG_HOST_CROSS_GLOBAL_CONLYFLAGS := \
-  $(call convert-to-host-clang-flags,$(HOST_CROSS_GLOBAL_CONLYFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CONLYFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CONLYFLAGS)) \
   $(CLANG_CONFIG_x86_HOST_CROSS_EXTRA_CONLYFLAGS)
 
-CLANG_HOST_CROSS_GLOBAL_CPPFLAGS := \
-  $(call convert-to-host-clang-flags,$(HOST_CROSS_GLOBAL_CPPFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CPPFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CPPFLAGS)) \
   $(CLANG_CONFIG_x86_HOST_CROSS_EXTRA_CPPFLAGS)
 
-CLANG_HOST_CROSS_GLOBAL_LDFLAGS := \
-  $(call convert-to-host-clang-flags,$(HOST_CROSS_GLOBAL_LDFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_LDFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_LDFLAGS)) \
   $(CLANG_CONFIG_x86_HOST_CROSS_EXTRA_LDFLAGS)
 
-HOST_CROSS_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i686.a
+$(clang_2nd_arch_prefix)HOST_CROSS_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i686.a
diff --git a/core/clang/HOST_CROSS_x86_64.mk b/core/clang/HOST_CROSS_x86_64.mk
new file mode 100644
index 0000000000..b6f2de9768
--- /dev/null
+++ b/core/clang/HOST_CROSS_x86_64.mk
@@ -0,0 +1,56 @@
+
+include $(BUILD_SYSTEM)/clang/x86_64.mk
+
+CLANG_CONFIG_x86_64_HOST_CROSS_TRIPLE := x86_64-pc-mingw32
+
+CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_ASFLAGS := \
+  $(CLANG_CONFIG_EXTRA_ASFLAGS) \
+  $(CLANG_CONFIG_HOST_CROSS_EXTRA_ASFLAGS) \
+  $(CLANG_CONFIG_x86_64_EXTRA_ASFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_COMBO_EXTRA_ASFLAGS) \
+  -target $(CLANG_CONFIG_x86_64_HOST_CROSS_TRIPLE)
+
+CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CFLAGS := \
+  $(CLANG_CONFIG_EXTRA_CFLAGS) \
+  $(CLANG_CONFIG_HOST_CROSS_EXTRA_CFLAGS) \
+  $(CLANG_CONFIG_x86_64_EXTRA_CFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_COMBO_EXTRA_CFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_ASFLAGS)
+
+CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CONLYFLAGS := \
+  $(CLANG_CONFIG_EXTRA_CONLYFLAGS) \
+  $(CLANG_CONFIG_HOST_CROSS_EXTRA_CONLYFLAGS) \
+  $(CLANG_CONFIG_x86_64_EXTRA_CONLYFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_COMBO_EXTRA_CONLYFLAGS)
+
+CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CPPFLAGS := \
+  $(CLANG_CONFIG_EXTRA_CPPFLAGS) \
+  $(CLANG_CONFIG_HOST_CROSS_EXTRA_CPPFLAGS) \
+  $(CLANG_CONFIG_x86_64_EXTRA_CPPFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_COMBO_EXTRA_CPPFLAGS) \
+  -target $(CLANG_CONFIG_x86_64_HOST_CROSS_TRIPLE)
+
+CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_LDFLAGS := \
+  $(CLANG_CONFIG_EXTRA_LDFLAGS) \
+  $(CLANG_CONFIG_HOST_CROSS_EXTRA_LDFLAGS) \
+  $(CLANG_CONFIG_x86_64_EXTRA_LDFLAGS) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_COMBO_EXTRA_LDFLAGS) \
+  -target $(CLANG_CONFIG_x86_64_HOST_CROSS_TRIPLE)
+
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CFLAGS)) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CFLAGS)
+
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CONLYFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CONLYFLAGS)) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CONLYFLAGS)
+
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_CPPFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_CPPFLAGS)) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_CPPFLAGS)
+
+$(clang_2nd_arch_prefix)CLANG_HOST_CROSS_GLOBAL_LDFLAGS := \
+  $(call convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_CROSS_GLOBAL_LDFLAGS)) \
+  $(CLANG_CONFIG_x86_64_HOST_CROSS_EXTRA_LDFLAGS)
+
+$(clang_2nd_arch_prefix)HOST_CROSS_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-x86_64.a
diff --git a/core/clang/config.mk b/core/clang/config.mk
index 5014a6f96d..fb3886eef7 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -149,8 +149,13 @@ clang_2nd_arch_prefix := $(HOST_2ND_ARCH_VAR_PREFIX)
 include $(BUILD_SYSTEM)/clang/HOST_$(HOST_2ND_ARCH).mk
 endif
 
-ifdef HOST_CROSS_OS
-include $(BUILD_SYSTEM)/clang/HOST_CROSS_$(HOST_CROSS_OS).mk
+ifdef HOST_CROSS_ARCH
+clang_2nd_arch_prefix :=
+include $(BUILD_SYSTEM)/clang/HOST_CROSS_$(HOST_CROSS_ARCH).mk
+ifdef HOST_CROSS_2ND_ARCH
+clang_2nd_arch_prefix := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/clang/HOST_CROSS_$(HOST_CROSS_2ND_ARCH).mk
+endif
 endif
 
 # TARGET config
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 49e56c4cbf..b64b53b657 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -297,6 +297,9 @@ LOCAL_SRC_FILES_$(HOST_OS)_$(HOST_2ND_ARCH):=
 endif
 ifdef HOST_CROSS_OS
 LOCAL_SRC_FILES_$(HOST_CROSS_OS)_$(HOST_CROSS_ARCH):=
+ifdef HOST_CROSS_2ND_ARCH
+LOCAL_SRC_FILES_$(HOST_CROSS_OS)_$(HOST_CROSS_2ND_ARCH):=
+endif
 endif
 
 LOCAL_SRC_FILES_32:=
diff --git a/core/combo/HOST_CROSS_windows-x86_64.mk b/core/combo/HOST_CROSS_windows-x86_64.mk
new file mode 100644
index 0000000000..1ad6005e34
--- /dev/null
+++ b/core/combo/HOST_CROSS_windows-x86_64.mk
@@ -0,0 +1,65 @@
+#
+# Copyright (C) 2006 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Settings to use MinGW as a cross-compiler under Linux
+# Included by combo/select.make
+
+$(combo_var_prefix)GLOBAL_CFLAGS += -DUSE_MINGW -DWIN32_LEAN_AND_MEAN
+$(combo_var_prefix)GLOBAL_CFLAGS += -Wno-unused-parameter
+$(combo_var_prefix)GLOBAL_CFLAGS += --sysroot=prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/x86_64-w64-mingw32
+$(combo_var_prefix)GLOBAL_CFLAGS += -m64
+$(combo_var_prefix)GLOBAL_LDFLAGS += -m64
+TOOLS_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/bin/x86_64-w64-mingw32-
+$(combo_var_prefix)C_INCLUDES += prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/x86_64-w64-mingw32/include
+$(combo_var_prefix)C_INCLUDES += prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/lib/gcc/x86_64-w64-mingw32/4.8.3/include
+$(combo_var_prefix)GLOBAL_LD_DIRS += -Lprebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/x86_64-w64-mingw32/lib64
+
+# Workaround differences in inttypes.h between host and target.
+# See bug 12708004.
+$(combo_var_prefix)GLOBAL_CFLAGS += -D__STDC_FORMAT_MACROS -D__STDC_CONSTANT_MACROS
+# Use C99-compliant printf functions (%zd).
+$(combo_var_prefix)GLOBAL_CFLAGS += -D__USE_MINGW_ANSI_STDIO=1
+# Admit to using >= Vista. Both are needed because of <_mingw.h>.
+$(combo_var_prefix)GLOBAL_CFLAGS += -D_WIN32_WINNT=0x0600 -DWINVER=0x0600
+# Get 64-bit off_t and related functions.
+$(combo_var_prefix)GLOBAL_CFLAGS += -D_FILE_OFFSET_BITS=64
+
+$(combo_var_prefix)CC := $(TOOLS_PREFIX)gcc
+$(combo_var_prefix)CXX := $(TOOLS_PREFIX)g++
+$(combo_var_prefix)AR := $(TOOLS_PREFIX)ar
+$(combo_var_prefix)NM := $(TOOLS_PREFIX)nm
+$(combo_var_prefix)OBJDUMP := $(TOOLS_PREFIX)objdump
+
+define $(combo_var_prefix)transform-shared-lib-to-toc
+$(hide) $($(PRIVATE_2ND_ARCH_VAR_PREFIX)$(PRIVATE_PREFIX)OBJDUMP) -x $(1) | grep "^Name" | cut -f3 -d" " > $(2)
+$(hide) $($(PRIVATE_2ND_ARCH_VAR_PREFIX)$(PRIVATE_PREFIX)NM) -g -f p $(1) | cut -f1-2 -d" " >> $(2)
+endef
+
+$(combo_var_prefix)GLOBAL_LDFLAGS += \
+    --enable-stdcall-fixup
+
+ifneq ($(strip $(BUILD_HOST_static)),)
+# Statically-linked binaries are desirable for sandboxed environment
+$(combo_var_prefix)GLOBAL_LDFLAGS += -static
+endif # BUILD_HOST_static
+
+$(combo_var_prefix)SHLIB_SUFFIX := .dll
+$(combo_var_prefix)EXECUTABLE_SUFFIX := .exe
+
+$(combo_var_prefix)IS_64_BIT := true
+
+# The mingw gcc is 4.8, 4.9 is required for color diagnostics
+$(combo_var_prefix)UNKNOWN_CFLAGS := -fdiagnostics-color
diff --git a/core/config.mk b/core/config.mk
index 0034c43243..69d56c81d6 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -255,6 +255,12 @@ ifdef HOST_CROSS_OS
 combo_target := HOST_CROSS_
 combo_2nd_arch_prefix :=
 include $(BUILD_SYSTEM)/combo/select.mk
+
+ifdef HOST_CROSS_2ND_ARCH
+combo_target := HOST_CROSS_
+combo_2nd_arch_prefix := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/combo/select.mk
+endif
 endif
 
 # on windows, the tools have .exe at the end, and we depend on the
@@ -746,6 +752,17 @@ HOST_CROSS_GLOBAL_LD_DIRS += -L$(HOST_CROSS_OUT_INTERMEDIATE_LIBRARIES)
 HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $(HOST_CROSS_OUT_HEADERS)
 HOST_CROSS_GLOBAL_CFLAGS += $(HOST_CROSS_RELEASE_CFLAGS)
 HOST_CROSS_GLOBAL_CPPFLAGS += $(HOST_CROSS_RELEASE_CPPFLAGS)
+
+ifdef HOST_CROSS_2ND_ARCH
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CFLAGS += $(filter-out $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_UNKNOWN_CFLAGS),$(COMMON_GLOBAL_CFLAGS))
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CFLAGS += $(COMMON_RELEASE_CFLAGS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_LD_DIRS += -L$($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_INTERMEDIATE_LIBRARIES)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_HEADERS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CFLAGS += $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CFLAGS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CPPFLAGS += $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CPPFLAGS)
+endif
 endif
 
 ifdef BRILLO
diff --git a/core/definitions.mk b/core/definitions.mk
index 6b1d8fc3c6..ab7f9a63c5 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -88,6 +88,7 @@ $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_DEPENDENCIES_ON_SHARED_LIBRARIES :=
 HOST_DEPENDENCIES_ON_SHARED_LIBRARIES :=
 $(HOST_2ND_ARCH_VAR_PREFIX)HOST_DEPENDENCIES_ON_SHARED_LIBRARIES :=
 HOST_CROSS_DEPENDENCIES_ON_SHARED_LIBRARIES :=
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_DEPENDENCIES_ON_SHARED_LIBRARIES :=
 
 # Generated class file names for Android resource.
 # They are escaped and quoted so can be passed safely to a bash command.
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index 797fdce89d..cfb031ff91 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -78,9 +78,12 @@ $(info   TARGET_2ND_ARCH=$(TARGET_2ND_ARCH))
 $(info   TARGET_2ND_ARCH_VARIANT=$(TARGET_2ND_ARCH_VARIANT))
 $(info   TARGET_2ND_CPU_VARIANT=$(TARGET_2ND_CPU_VARIANT))
 $(info   HOST_ARCH=$(HOST_ARCH))
+$(info   HOST_2ND_ARCH=$(HOST_2ND_ARCH))
 $(info   HOST_OS=$(HOST_OS))
 $(info   HOST_OS_EXTRA=$(HOST_OS_EXTRA))
 $(info   HOST_CROSS_OS=$(HOST_CROSS_OS))
+$(info   HOST_CROSS_ARCH=$(HOST_CROSS_ARCH))
+$(info   HOST_CROSS_2ND_ARCH=$(HOST_CROSS_2ND_ARCH))
 $(info   HOST_BUILD_TYPE=$(HOST_BUILD_TYPE))
 $(info   BUILD_ID=$(BUILD_ID))
 $(info   OUT_DIR=$(OUT_DIR))
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 46c146394f..ae63ae712c 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -62,6 +62,7 @@ HOST_CROSS_OS :=
 ifeq ($(HOST_OS),linux)
 HOST_CROSS_OS := windows
 HOST_CROSS_ARCH := x86
+HOST_CROSS_2ND_ARCH := x86_64
 endif
 
 ifeq ($(HOST_OS),)
@@ -276,6 +277,14 @@ else
 HOST_LIBRARY_PATH := $(HOST_OUT_SHARED_LIBRARIES)
 endif
 
+# Out for HOST_CROSS_2ND_ARCH
+HOST_CROSS_2ND_ARCH_VAR_PREFIX := 2ND_
+HOST_CROSS_2ND_ARCH_MODULE_SUFFIX := _64
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_INTERMEDIATES := $(HOST_CROSS_OUT)/obj64
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_INTERMEDIATE_LIBRARIES := $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_INTERMEDIATES)/lib
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_SHARED_LIBRARIES := $(HOST_CROSS_OUT)/lib64
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_EXECUTABLES := $(HOST_CROSS_OUT_EXECUTABLES)
+
 TARGET_OUT_INTERMEDIATES := $(PRODUCT_OUT)/obj
 TARGET_OUT_HEADERS := $(TARGET_OUT_INTERMEDIATES)/include
 TARGET_OUT_INTERMEDIATE_LIBRARIES := $(TARGET_OUT_INTERMEDIATES)/lib
diff --git a/core/host_executable.mk b/core/host_executable.mk
index bc55ef94af..6f19bd1738 100644
--- a/core/host_executable.mk
+++ b/core/host_executable.mk
@@ -61,6 +61,7 @@ OVERRIDE_BUILT_MODULE_PATH :=
 # we don't want others using the cross compiled version
 saved_LOCAL_BUILT_MODULE := $(LOCAL_BUILT_MODULE)
 saved_LOCAL_INSTALLED_MODULE := $(LOCAL_INSTALLED_MODULE)
+saved_LOCAL_LDFLAGS := $(LOCAL_LDFLAGS)
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
 LOCAL_INTERMEDIATE_TARGETS :=
@@ -70,9 +71,35 @@ LOCAL_LDFLAGS += $(HOST_CROSS_FPIE_FLAGS)
 endif
 
 include $(BUILD_SYSTEM)/host_executable_internal.mk
+LOCAL_LDFLAGS := $(saved_LOCAL_LDFLAGS)
 LOCAL_BUILT_MODULE := $(saved_LOCAL_BUILT_MODULE)
 LOCAL_INSTALLED_MODULE := $(saved_LOCAL_INSTALLED_MODULE)
 endif
+
+ifdef HOST_CROSS_2ND_ARCH
+LOCAL_2ND_ARCH_VAR_PREFIX := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+ifeq ($(my_module_arch_supported),true)
+OVERRIDE_BUILT_MODULE_PATH :=
+# we don't want others using the cross compiled version
+saved_LOCAL_BUILT_MODULE := $(LOCAL_BUILT_MODULE)
+saved_LOCAL_INSTALLED_MODULE := $(LOCAL_INSTALLED_MODULE)
+saved_LOCAL_LDFLAGS := $(LOCAL_LDFLAGS)
+LOCAL_BUILT_MODULE :=
+LOCAL_INSTALLED_MODULE :=
+LOCAL_INTERMEDIATE_TARGETS :=
+
+ifeq ($(LOCAL_NO_FPIE),)
+LOCAL_LDFLAGS += $(HOST_CROSS_FPIE_FLAGS)
+endif
+
+include $(BUILD_SYSTEM)/host_executable_internal.mk
+LOCAL_LDFLAGS := $(saved_LOCAL_LDFLAGS)
+LOCAL_BUILT_MODULE := $(saved_LOCAL_BUILT_MODULE)
+LOCAL_INSTALLED_MODULE := $(saved_LOCAL_INSTALLED_MODULE)
+endif
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+endif
 LOCAL_HOST_PREFIX :=
 endif
 
diff --git a/core/host_shared_library.mk b/core/host_shared_library.mk
index 49000a4dcd..2e0c9f1ce2 100644
--- a/core/host_shared_library.mk
+++ b/core/host_shared_library.mk
@@ -53,6 +53,25 @@ LOCAL_INTERMEDIATE_TARGETS :=
 include $(BUILD_SYSTEM)/host_shared_library_internal.mk
 LOCAL_INSTALLED_MODULE := $(saved_LOCAL_INSTALLED_MODULE)
 endif
+
+ifdef HOST_CROSS_2ND_ARCH
+LOCAL_2ND_ARCH_VAR_PREFIX := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+ifeq ($(my_module_arch_supported),true)
+# Build for HOST_CROSS_2ND_ARCH
+OVERRIDE_BUILT_MODULE_PATH :=
+LOCAL_BUILT_MODULE :=
+LOCAL_MODULE_SUFFIX :=
+# We don't want makefiles using the cross-compiled host tool
+saved_LOCAL_INSTALLED_MODULE := $(LOCAL_INSTALLED_MODULE)
+LOCAL_INSTALLED_MODULE :=
+LOCAL_INTERMEDIATE_TARGETS :=
+
+include $(BUILD_SYSTEM)/host_shared_library_internal.mk
+LOCAL_INSTALLED_MODULE := $(saved_LOCAL_INSTALLED_MODULE)
+endif
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+endif
 LOCAL_HOST_PREFIX :=
 endif
 
diff --git a/core/host_static_library.mk b/core/host_static_library.mk
index aa8c0e3d82..068c702175 100644
--- a/core/host_static_library.mk
+++ b/core/host_static_library.mk
@@ -49,6 +49,21 @@ LOCAL_INTERMEDIATE_TARGETS :=
 
 include $(BUILD_SYSTEM)/host_static_library_internal.mk
 endif
+
+ifdef HOST_CROSS_2ND_ARCH
+LOCAL_2ND_ARCH_VAR_PREFIX := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+ifeq ($(my_module_arch_supported),true)
+# Build for HOST_CROSS_2ND_ARCH
+OVERRIDE_BUILT_MODULE_PATH :=
+LOCAL_BUILT_MODULE :=
+LOCAL_INSTALLED_MODULE :=
+LOCAL_INTERMEDIATE_TARGETS :=
+
+include $(BUILD_SYSTEM)/host_static_library_internal.mk
+endif
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+endif
 LOCAL_HOST_PREFIX :=
 endif