property_context: split into platform and non-platform components.

Bug: 33746484
Test: Successfully boot with original service and property contexts.
      Successfully boot with split serivce and property contexts.

Change-Id: I7881af8922834dc69b37dae3b06d921e05206564
Signed-off-by: Sandeep Patil <sspatil@google.com>

Android.mk

@@ -760,56 +760,64 @@ $(LOCAL_BUILT_MODULE): $(addprefix $(PLAT_PRIVATE_POLICY)/, seapp_contexts)
 ##################################
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := property_contexts
+LOCAL_MODULE := plat_property_contexts
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE_TAGS := optional
+# TODO: Change module path to TARGET_SYSTEM_OUT after b/27805372
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
 
 include $(BUILD_SYSTEM)/base_rules.mk
 
-all_pc_files := $(call build_policy, property_contexts, $(PLAT_PRIVATE_POLICY) $(BOARD_SEPOLICY_DIRS))
-all_pcfiles_with_nl := $(call add_nl, $(all_pc_files), $(built_nl))
+plat_pcfiles := $(call build_policy, property_contexts, $(PLAT_PRIVATE_POLICY))
 
-property_contexts.tmp := $(intermediates)/property_contexts.tmp
-$(property_contexts.tmp): PRIVATE_PC_FILES := $(all_pcfiles_with_nl)
-$(property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
-$(property_contexts.tmp): $(all_pcfiles_with_nl)
+plat_property_contexts.tmp := $(intermediates)/plat_property_contexts.tmp
+$(plat_property_contexts.tmp): PRIVATE_PC_FILES := $(plat_pcfiles)
+$(plat_property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
+$(plat_property_contexts.tmp): $(plat_pcfiles)
 	@mkdir -p $(dir $@)
 	$(hide) m4 -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_PC_FILES) > $@
 
 
 $(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
-$(LOCAL_BUILT_MODULE): $(property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
+$(LOCAL_BUILT_MODULE): $(plat_property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
 	@mkdir -p $(dir $@)
 	$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< > $@
 	$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
 
-built_pc := $(LOCAL_BUILT_MODULE)
-all_pc_files :=
-all_pcfiles_with_nl :=
-property_contexts.tmp :=
+built_plat_pc := $(LOCAL_BUILT_MODULE)
+plat_pc_files :=
+plat_property_contexts.tmp :=
 
 ##################################
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := general_property_contexts
+LOCAL_MODULE := nonplat_property_contexts
 LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_TAGS := tests
+LOCAL_MODULE_TAGS := optional
+# TODO: Change module path to TARGET_SYSTEM_OUT after b/27805372
+LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
 
 include $(BUILD_SYSTEM)/base_rules.mk
 
-general_property_contexts.tmp := $(intermediates)/general_property_contexts.tmp
-$(general_property_contexts.tmp): $(addprefix $(PLAT_PRIVATE_POLICY)/, property_contexts)
+nonplat_pcfiles := $(call build_policy, property_contexts, $(BOARD_SEPOLICY_DIRS) $(REQD_MASK_POLICY))
+
+nonplat_property_contexts.tmp := $(intermediates)/nonplat_property_contexts.tmp
+$(nonplat_property_contexts.tmp): PRIVATE_PC_FILES := $(nonplat_pcfiles)
+$(nonplat_property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
+$(nonplat_property_contexts.tmp): $(nonplat_pcfiles)
 	@mkdir -p $(dir $@)
-	$(hide) m4 -s $< > $@
+	$(hide) m4 -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_PC_FILES) > $@
 
-$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_general_sepolicy)
-$(LOCAL_BUILT_MODULE): $(general_property_contexts.tmp) $(built_general_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc $(ACP)
+
+$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
+$(LOCAL_BUILT_MODULE): $(nonplat_property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
 	@mkdir -p $(dir $@)
 	$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< > $@
 	$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
 
-general_property_contexts.tmp :=
+built_nonplat_pc := $(LOCAL_BUILT_MODULE)
+nonplat_pc_files :=
+nonplat_property_contexts.tmp :=
 
 ##################################
 include $(CLEAR_VARS)
@@ -942,7 +950,7 @@ LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
 
 include $(BUILD_SYSTEM)/base_rules.mk
-$(LOCAL_BUILT_MODULE): $(built_sepolicy) $(built_pc) $(built_plat_fc) \
+$(LOCAL_BUILT_MODULE): $(built_sepolicy) $(built_plat_pc) $(built_nonplat_pc) $(built_plat_fc) \
 $(buit_nonplat_fc) $(built_plat_sc) $(built_nonplat_sc) $(built_plat_svc) $(built_nonplat_svc)
 	@mkdir -p $(dir $@)
 	$(hide) echo -n $(BUILD_FINGERPRINT_FROM_FILE) > $@
@@ -957,7 +965,8 @@ built_nonplat_fc :=
 built_general_sepolicy :=
 built_general_sepolicy.conf :=
 built_nl :=
-built_pc :=
+built_plat_pc :=
+built_nonplat_pc :=
 built_nonplat_sc :=
 built_plat_sc :=
 built_sepolicy :=

private/file_contexts

@@ -41,7 +41,8 @@
 /mapping_sepolicy\.cil   u:object_r:rootfs:s0
 /nonplat_sepolicy\.cil   u:object_r:rootfs:s0
 /plat_sepolicy\.cil      u:object_r:rootfs:s0
-/property_contexts  u:object_r:property_contexts:s0
+/plat_property_contexts  u:object_r:property_contexts:s0
+/nonplat_property_contexts  u:object_r:property_contexts:s0
 /seapp_contexts     u:object_r:rootfs:s0
 /nonplat_seapp_contexts     u:object_r:rootfs:s0
 /plat_seapp_contexts     u:object_r:rootfs:s0

reqd_mask/property_contexts

+# empty property_contexts file - this file is used to generate an empty
+# non-platform property context for devices without any property_contexts
+# customizations.