Specify boot image format to be lz4hc

Reduce boot image space taken from 28803072B -> 9572352B (-20MB).

No reason to have this be configurable yet.

Test: ls -l $OUT/system/framework/*/apex*.art | awk '{s += $5} END {print s}'
Bug: 77863440

Change-Id: I280b740dfbd001109ce1e288e395595f21567aa6

parent c89fe625

java/dexpreopt_bootjars.go

+1 −0

Original line number	Diff line number	Diff line
		@@ -298,6 +298,7 @@ func buildBootImageRuleForArch(ctx android.SingletonContext, image *bootImage,
		FlagForEachArg("--dex-location=", image.dexLocations).
		Flag("--generate-debug-info").
		Flag("--generate-build-id").
		Flag("--image-format=lz4hc").
		FlagWithOutput("--oat-symbols=", symbolsFile).
		Flag("--strip").
		FlagWithOutput("--oat-file=", outputPath.ReplaceExtension(ctx, "oat")).