core & tools: system_dlkm: add dynamic partition

Converts existing static partition support to a
dynamic partition.

Bug: 200082547
Test: TH
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Ifd6d0c2a04e947b16f8b241e99cca594a1d315ae
diff --git a/tools/fs_config/Android.mk b/tools/fs_config/Android.mk
index b19a630..c36c3aa 100644
--- a/tools/fs_config/Android.mk
+++ b/tools/fs_config/Android.mk
@@ -42,13 +42,14 @@
 vendor_capability_header := $(system_capability_header)
 endif
 
-# List of supported vendor, oem, odm, vendor_dlkm and odm_dlkm Partitions
+# List of supported vendor, oem, odm, vendor_dlkm, odm_dlkm, and system_dlkm Partitions
 fs_config_generate_extra_partition_list := $(strip \
   $(if $(BOARD_USES_VENDORIMAGE)$(BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE),vendor) \
   $(if $(BOARD_USES_OEMIMAGE)$(BOARD_OEMIMAGE_FILE_SYSTEM_TYPE),oem) \
   $(if $(BOARD_USES_ODMIMAGE)$(BOARD_ODMIMAGE_FILE_SYSTEM_TYPE),odm) \
   $(if $(BOARD_USES_VENDOR_DLKMIMAGE)$(BOARD_VENDOR_DLKMIMAGE_FILE_SYSTEM_TYPE),vendor_dlkm) \
   $(if $(BOARD_USES_ODM_DLKMIMAGE)$(BOARD_ODM_DLKMIMAGE_FILE_SYSTEM_TYPE),odm_dlkm) \
+  $(if $(BOARD_USES_SYSTEM_DLKMIMAGE)$(BOARD_SYSTEM_DLKMIMAGE_FILE_SYSTEM_TYPE),system_dlkm) \
 )
 
 ##################################
@@ -502,6 +503,63 @@
 
 endif
 
+ifneq ($(filter system_dlkm,$(fs_config_generate_extra_partition_list)),)
+##################################
+# Generate the system_dlkm/etc/fs_config_dirs binary file for the target
+# Add fs_config_dirs or fs_config_dirs_nonsystem to PRODUCT_PACKAGES
+# in the device make file to enable
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := _fs_config_dirs_system_dlkm
+LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
+LOCAL_LICENSE_CONDITIONS := notice
+LOCAL_NOTICE_FILE := build/soong/licenses/LICENSE
+LOCAL_MODULE_CLASS := ETC
+LOCAL_INSTALLED_MODULE_STEM := fs_config_dirs
+LOCAL_MODULE_PATH := $(TARGET_OUT_SYSTEM_DLKM)/etc
+include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE): PRIVATE_ANDROID_FS_HDR := $(vendor_android_filesystem_config)
+$(LOCAL_BUILT_MODULE): PRIVATE_ANDROID_CAP_HDR := $(vendor_capability_header)
+$(LOCAL_BUILT_MODULE): PRIVATE_TARGET_FS_CONFIG_GEN := $(TARGET_FS_CONFIG_GEN)
+$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/fs_config_generator.py $(TARGET_FS_CONFIG_GEN) $(vendor_android_filesystem_config) $(vendor_capability_header)
+	@mkdir -p $(dir $@)
+	$< fsconfig \
+	   --aid-header $(PRIVATE_ANDROID_FS_HDR) \
+	   --capability-header $(PRIVATE_ANDROID_CAP_HDR) \
+	   --partition system_dlkm \
+	   --dirs \
+	   --out_file $@ \
+	   $(or $(PRIVATE_TARGET_FS_CONFIG_GEN),/dev/null)
+
+##################################
+# Generate the system_dlkm/etc/fs_config_files binary file for the target
+# Add fs_config_files or fs_config_files_nonsystem to PRODUCT_PACKAGES
+# in the device make file to enable
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := _fs_config_files_system_dlkm
+LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
+LOCAL_LICENSE_CONDITIONS := notice
+LOCAL_NOTICE_FILE := build/soong/licenses/LICENSE
+LOCAL_MODULE_CLASS := ETC
+LOCAL_INSTALLED_MODULE_STEM := fs_config_files
+LOCAL_MODULE_PATH := $(TARGET_OUT_SYSTEM_DLKM)/etc
+include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE): PRIVATE_ANDROID_FS_HDR := $(vendor_android_filesystem_config)
+$(LOCAL_BUILT_MODULE): PRIVATE_ANDROID_CAP_HDR := $(vendor_capability_header)
+$(LOCAL_BUILT_MODULE): PRIVATE_TARGET_FS_CONFIG_GEN := $(TARGET_FS_CONFIG_GEN)
+$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/fs_config_generator.py $(TARGET_FS_CONFIG_GEN) $(vendor_android_filesystem_config) $(vendor_capability_header)
+	@mkdir -p $(dir $@)
+	$< fsconfig \
+	   --aid-header $(PRIVATE_ANDROID_FS_HDR) \
+	   --capability-header $(PRIVATE_ANDROID_CAP_HDR) \
+	   --partition system_dlkm \
+	   --files \
+	   --out_file $@ \
+	   $(or $(PRIVATE_TARGET_FS_CONFIG_GEN),/dev/null)
+
+endif
+
 ifneq ($(BOARD_USES_PRODUCTIMAGE)$(BOARD_PRODUCTIMAGE_FILE_SYSTEM_TYPE),)
 ##################################
 # Generate the product/etc/fs_config_dirs binary file for the target