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core: Use WITH_DEXPREOPT_PIC=true to have dex2oat build pic oat files 

When WITH_DEXPREOPT=true is set, if we also set WITH_DEXPREOPT_PIC=true
then the build will generate position-independent OAT images.

This means that all the system applications no longer need to be
relocated into /data/dalvik-cache and this can achieve saving disk space
at the cost of slightly slower running code.

Bug: 18035729
Change-Id: Ifd517c842f48bf31568bf5ff56667298d422c2c0
This commit is contained in:
Igor Murashkin 2014-10-30 16:08:07 -07:00
parent 70d617aaf5
commit da9f1a7e82
2 changed files with 11 additions and 0 deletions
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5
core/dex_preopt_libart_boot.mk
View File

@ -32,6 +32,11 @@ ifneq ($(PRODUCT_DEX_PREOPT_IMAGE_IN_DATA),true)
$(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE := $(PRODUCT_OUT)$($(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME)
endif
# Compile boot.oat as position-independent code if WITH_DEXPREOPT_PIC=true
ifeq (true,$(WITH_DEXPREOPT_PIC))
PRODUCT_DEX_PREOPT_BOOT_FLAGS += --compile-pic
endif
# The rule to install boot.art and boot.oat
$($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE) : $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME) | $(ACP)
$(call copy-file-to-target)

6
core/dex_preopt_odex_install.mk
View File

@ -105,6 +105,12 @@ ifndef LOCAL_DEX_PREOPT_FLAGS
LOCAL_DEX_PREOPT_FLAGS := $(PRODUCT_DEX_PREOPT_DEFAULT_FLAGS)
endif
endif
# Compile apps with position-independent code if WITH_DEXPREOPT_PIC=true
ifeq (true,$(WITH_DEXPREOPT_PIC))
LOCAL_DEX_PREOPT_FLAGS += --compile-pic
endif
$(built_odex): PRIVATE_DEX_PREOPT_FLAGS := $(LOCAL_DEX_PREOPT_FLAGS)
# Use pattern rule - we may have multiple installed odex files.