Add system_other partition, install odex files
For AB devices, support flashing two system partitions for factory use.
The normal system image on one partition, but without dex preopt. And a
system_other image that just contains the odex files. The dex files will
not be stripped out of the system image, in case the second system
partition is wiped.
Setting BOARD_USES_SYSTEM_OTHER_ODEX := true in the BoardConfig.mk
enables this behavior.
One can control which directories are placed in system_other by the
SYSTEM_OTHER_ODEX_FILTER configuration variable. Currently we default
to only copying only app and priv-app odexs.
Bug: 29278988
Change-Id: I7f4e87da919e7dc6a89fd8c668193cd4e98631bc
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 9410c3c..acd4a02 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -59,6 +59,21 @@
$(dir $(2))oat/$(1)/$(basename $(notdir $(2))).odex
endef
+# Returns the full path to the installed .odex file.
+# This handles BOARD_USES_SYSTEM_OTHER_ODEX to install odex files into another
+# partition.
+# $(1): the arch name.
+# $(2): the full install path (including file name) of the corresponding .apk.
+ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
+define get-odex-installed-file-path
+$(if $(filter $(foreach f,$(SYSTEM_OTHER_ODEX_FILTER),$(TARGET_OUT)/$(f)),$(2)),
+ $(call get-odex-file-path,$(1),$(patsubst $(TARGET_OUT)/%,$(TARGET_OUT_SYSTEM_OTHER)/%,$(2))),
+ $(call get-odex-file-path,$(1),$(2)))
+endef
+else
+get-odex-installed-file-path = $(get-odex-file-path)
+endif
+
# Returns the path to the image file (such as "/system/framework/<arch>/boot.art"
# $(1): the arch name (such as "arm")
# $(2): the image location (such as "/system/framework/boot.art")