Merge "Shrink Mac builds" am: f478b8487b am: e666d6bf1a

Original change: https://android-review.googlesource.com/c/platform/build/+/1860157

Change-Id: Ic631807b15aa8310dbe06d3db413876646b95b31

core/main.mk

@@ -534,7 +534,12 @@ FULL_BUILD := true
 # Include all of the makefiles in the system
 #
 
-subdir_makefiles := $(SOONG_ANDROID_MK) $(file <$(OUT_DIR)/.module_paths/Android.mk.list) $(SOONG_OUT_DIR)/late-$(TARGET_PRODUCT).mk
+subdir_makefiles := $(SOONG_ANDROID_MK)
+# Android.mk files are only used on Linux builds, Mac only supports Android.bp
+ifeq ($(HOST_OS),linux)
+  subdir_makefiles += $(file <$(OUT_DIR)/.module_paths/Android.mk.list)
+endif
+subdir_makefiles += $(SOONG_OUT_DIR)/late-$(TARGET_PRODUCT).mk
 subdir_makefiles_total := $(words int $(subdir_makefiles) post finish)
 .KATI_READONLY := subdir_makefiles_total
 
@@ -1310,7 +1315,11 @@ $(if $(strip $(1)), \
 )
 endef
 
-ifdef FULL_BUILD
+ifeq ($(HOST_OS),darwin)
+  # Target builds are not supported on Mac
+  product_target_FILES :=
+  product_host_FILES := $(call host-installed-files,$(INTERNAL_PRODUCT))
+else ifdef FULL_BUILD
   ifneq (true,$(ALLOW_MISSING_DEPENDENCIES))
     # Check to ensure that all modules in PRODUCT_PACKAGES exist (opt in per product)
     ifeq (true,$(PRODUCT_ENFORCE_PACKAGES_EXIST))
@@ -1466,7 +1475,9 @@ endif
 # contains everything that's built during the current make, but it also further
 # extends ALL_DEFAULT_INSTALLED_MODULES.
 ALL_DEFAULT_INSTALLED_MODULES := $(modules_to_install)
-include $(BUILD_SYSTEM)/Makefile
+ifeq ($(HOST_OS),linux)
+  include $(BUILD_SYSTEM)/Makefile
+endif
 modules_to_install := $(sort $(ALL_DEFAULT_INSTALLED_MODULES))
 ALL_DEFAULT_INSTALLED_MODULES :=
 
@@ -1687,7 +1698,11 @@ ifeq ($(SOONG_COLLECT_JAVA_DEPS), true)
 endif
 
 .PHONY: apps_only
-ifneq ($(TARGET_BUILD_APPS),)
+ifeq ($(HOST_OS),darwin)
+  # Mac only supports building host modules
+  droid_targets: $(filter $(HOST_OUT_ROOT)/%,$(modules_to_install)) dist_files
+
+else ifneq ($(TARGET_BUILD_APPS),)
   # If this build is just for apps, only build apps and not the full system by default.
 
   unbundled_build_modules :=