Track licenses of dexpreopted bootjars

Propagate the license metadata for dexpreopted bootjars.  Requires
rewriting the generated module to look more like as Soong module so
that it can use LOCAL_SOONG_LICENSE_METADATA.

Bug: 224612665
Test: m alllicensemetadata reportmissinglicenses
Change-Id: Ibd3269594462a0c38a3427d0c7838620a9b84551
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 393053d..a2c9942 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -17,52 +17,83 @@
 #
 ####################################
 
-# Install $(1) to $(2) so that it is shared between architectures.
-# Returns the target path of the shared vdex file and installed symlink.
-define copy-vdex-file
-$(strip \
-  $(eval # Remove the arch dir) \
-  $(eval my_vdex_shared := $(dir $(patsubst %/,%,$(dir $(2))))$(notdir $(2))) \
-  $(if $(filter-out %_2ND_ARCH,$(my_boot_image_arch)), \
-    $(eval # Copy $(1) to directory one level up (i.e. with the arch dir removed).) \
-    $(eval $(call copy-one-file,$(1),$(my_vdex_shared))) \
-  ) \
-  $(eval # Create symlink at $(2) which points to the actual physical copy.) \
-  $(call symlink-file,$(my_vdex_shared),../$(notdir $(2)),$(2)) \
-  $(my_vdex_shared) $(2) \
-)
+# Takes a list of src:dest install pairs and returns a new list with a path
+# prefixed to each dest value.
+# $(1): list of src:dest install pairs
+# $(2): path to prefix to each dest value
+define prefix-copy-many-files-dest
+$(foreach v,$(1),$(call word-colon,1,$(v)):$(2)$(call word-colon,2,$(v)))
 endef
 
-# Same as 'copy-many-files' but it uses the vdex-specific helper above.
-define copy-vdex-files
-$(foreach v,$(1),$(call copy-vdex-file,$(call word-colon,1,$(v)),$(2)$(call word-colon,2,$(v))))
+# Converts an architecture-specific vdex path into a location that can be shared
+# between architectures.
+define vdex-shared-install-path
+$(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1))
+endef
+
+# Takes a list of src:dest install pairs of vdex files and returns a new list
+# where each dest has been rewritten to the shared location for vdex files.
+define vdex-copy-many-files-shared-dest
+$(foreach v,$(1),$(call word-colon,1,$(v)):$(call vdex-shared-install-path,$(call word-colon,2,$(v))))
+endef
+
+# Creates a rule to symlink an architecture specific vdex file to the shared
+# location for that vdex file.
+define symlink-vdex-file
+$(strip \
+  $(call symlink-file,\
+    $(call vdex-shared-install-path,$(1)),\
+    ../$(notdir $(1)),\
+    $(1))\
+  $(1))
+endef
+
+# Takes a list of src:dest install pairs of vdex files and creates rules to
+# symlink each dest to the shared location for that vdex file.
+define symlink-vdex-files
+$(foreach v,$(1),$(call symlink-vdex-file,$(call word-colon,2,$(v))))
 endef
 
 my_boot_image_module :=
 
 my_suffix := $(my_boot_image_name)_$($(my_boot_image_arch))
-my_copy_pairs := $(strip $(DEXPREOPT_IMAGE_BUILT_INSTALLED_$(my_suffix)))
+my_copy_pairs := $(call prefix-copy-many-files-dest,$(DEXPREOPT_IMAGE_BUILT_INSTALLED_$(my_suffix)),$(my_boot_image_out))
+my_vdex_copy_pairs := $(call prefix-copy-many-files-dest,$(DEXPREOPT_IMAGE_VDEX_BUILT_INSTALLED_$(my_suffix)),$(my_boot_image_out))
+my_vdex_copy_shared_pairs := $(call vdex-copy-many-files-shared-dest,$(my_vdex_copy_pairs))
+ifeq (,$(filter %_2ND_ARCH,$(my_boot_image_arch)))
+  # Only install the vdex to the shared location for the primary architecture.
+  my_copy_pairs += $(my_vdex_copy_shared_pairs)
+endif
+
+my_unstripped_copy_pairs := $(call prefix-copy-many-files-dest,$(DEXPREOPT_IMAGE_UNSTRIPPED_BUILT_INSTALLED_$(my_suffix)),$(my_boot_image_syms))
 
 # Generate the boot image module only if there is any file to install.
-ifneq (,$(my_copy_pairs))
+ifneq (,$(strip $(my_copy_pairs)))
   my_first_pair := $(firstword $(my_copy_pairs))
   my_rest_pairs := $(wordlist 2,$(words $(my_copy_pairs)),$(my_copy_pairs))
 
   my_first_src := $(call word-colon,1,$(my_first_pair))
-  my_first_dest := $(my_boot_image_out)$(call word-colon,2,$(my_first_pair))
+  my_first_dest := $(call word-colon,2,$(my_first_pair))
 
-  my_installed := $(call copy-many-files,$(my_rest_pairs),$(my_boot_image_out))
-  my_installed += $(call copy-vdex-files,$(DEXPREOPT_IMAGE_VDEX_BUILT_INSTALLED_$(my_suffix)),$(my_boot_image_out))
-  my_unstripped_installed := $(call copy-many-files,$(DEXPREOPT_IMAGE_UNSTRIPPED_BUILT_INSTALLED_$(my_suffix)),$(my_boot_image_syms))
+  my_installed := $(call copy-many-files,$(my_copy_pairs))
+  my_unstripped_installed := $(call copy-many-files,$(my_unstripped_copy_pairs))
+
+  my_symlinks := $(call symlink-vdex-files,$(my_vdex_copy_pairs))
 
   # We don't have a LOCAL_PATH for the auto-generated modules, so let it be the $(BUILD_SYSTEM).
   LOCAL_PATH := $(BUILD_SYSTEM)
+  # Hack to let these pseudo-modules wrapped around Soong modules use LOCAL_SOONG_INSTALLED_MODULE.
+  LOCAL_MODULE_MAKEFILE := $(SOONG_ANDROID_MK)
 
   include $(CLEAR_VARS)
   LOCAL_MODULE := dexpreopt_bootjar.$(my_suffix)
   LOCAL_PREBUILT_MODULE_FILE := $(my_first_src)
   LOCAL_MODULE_PATH := $(dir $(my_first_dest))
   LOCAL_MODULE_STEM := $(notdir $(my_first_dest))
+  LOCAL_SOONG_INSTALL_PAIRS := $(my_copy_pairs)
+  LOCAL_SOONG_INSTALL_SYMLINKS := $(my_symlinks)
+  LOCAL_SOONG_INSTALLED_MODULE := $(my_first_dest)
+  LOCAL_SOONG_LICENSE_METADATA := $(DEXPREOPT_IMAGE_LICENSE_METADATA_$(my_suffix))
   ifneq (,$(strip $(filter HOST_%,$(my_boot_image_arch))))
     LOCAL_IS_HOST_MODULE := true
   endif
@@ -71,9 +102,8 @@
   $(LOCAL_BUILT_MODULE): | $(my_unstripped_installed)
   # Installing boot.art causes all boot image bits to be installed.
   # Keep this old behavior in case anyone still needs it.
-  $(LOCAL_INSTALLED_MODULE): $(my_installed)
-  ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed)
-  $(my_all_targets): $(my_installed)
+  $(LOCAL_INSTALLED_MODULE): $(wordlist 2,$(words $(my_installed)),$(my_installed)) $(my_symlinks)
+  $(my_all_targets): $(my_installed) $(my_symlinks)
 
   my_boot_image_module := $(LOCAL_MODULE)
 endif  # my_copy_pairs != empty