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Commit 1046d206 authored by Doug Zongker's avatar Doug Zongker
Browse files

add feature to strip "# comment" lines from prebuilt files 

Change things so that when $(LOCAL_PREBUILT_STRIP_COMMENTS) is
nonempty, we copy the source file using sed to strip out all the "#
line"-style comments and blank lines, saving considerable system image
space in the case of some wifi configurations.

Bug: 2036961
parent 28ab3b12

core/definitions.mk

+13 −0
Original line number Diff line number Diff line
@@ -1469,6 +1469,13 @@ define copy-file-to-target-with-cp 
$(hide) cp -fp $< $@

endef



# The same as copy-file-to-target, but strip out "# comment"-style

# comments (for config files and such).

define copy-file-to-target-strip-comments

@mkdir -p $(dir $@)

$(hide) sed -e 's/#.*$$//' -e 's/[ \t]*$$//' -e '/^$$/d' < $< > $@

endef



# The same as copy-file-to-target, but don't preserve

# the old modification time.

define copy-file-to-new-target
@@ -1489,6 +1496,12 @@ define transform-prebuilt-to-target 
$(copy-file-to-target)

endef



# Copy a prebuilt file to a target location, stripping "# comment" comments.

define transform-prebuilt-to-target-strip-comments

@echo "$(if $(PRIVATE_IS_HOST_MODULE),host,target) Prebuilt: $(PRIVATE_MODULE) ($@)"

$(copy-file-to-target-strip-comments)

endef





###########################################################

## On some platforms (MacOS), after copying a static

core/prebuilt.mk

+7 −1
Original line number Diff line number Diff line
@@ -26,8 +26,14 @@ else 
  prebuilt_module_is_a_library :=

endif



ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)

$(LOCAL_BUILT_MODULE) : $(LOCAL_PATH)/$(LOCAL_SRC_FILES)

	$(transform-prebuilt-to-target-strip-comments)

else

$(LOCAL_BUILT_MODULE) : $(LOCAL_PATH)/$(LOCAL_SRC_FILES) | $(ACP)

	$(transform-prebuilt-to-target)

endif



ifneq ($(prebuilt_module_is_a_library),)

  ifneq ($(LOCAL_IS_HOST_MODULE),)

	$(transform-host-ranlib-copy-hack)