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platform_build
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Support "LOCAL_FDO_SUPPORT := always". 

"LOCAL_FDO_SUPPORT := always" enables FDO without user specifying
"BUILD_FDO_OPTIMIZE := true", i.e. it turns on FDO for a
module in any build configuration.

Change-Id: I05d8db2edb2b3f5db073fa14d5bf1083a04571c0
This commit is contained in:
Ying Wang 2014-10-28 14:50:59 -07:00
parent fb9309d411
commit 45d0143ab1
2 changed files with 24 additions and 34 deletions
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30
core/binary.mk
View File

@ -214,10 +214,15 @@ endif
## Please note that we will do option filtering during FDO build.
## i.e. Os->O2, remove -fno-early-inline and -finline-limit.
##################################################################
ifeq ($(strip $(LOCAL_FDO_SUPPORT)), true)
ifeq ($(strip $(LOCAL_IS_HOST_MODULE)),)
my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_CFLAGS)
my_ldflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_LDFLAGS)
my_fdo_build :=
ifneq ($(filter true always, $(LOCAL_FDO_SUPPORT)),)
ifeq ($(BUILD_FDO_INSTRUMENT),true)
my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_INSTRUMENT_CFLAGS)
my_ldflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_INSTRUMENT_LDFLAGS)
my_fdo_build := true
else ifneq ($(filter true,$(BUILD_FDO_OPTIMIZE))$(filter always,$(LOCAL_FDO_SUPPORT)),)
my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_OPTIMIZE_CFLAGS)
my_fdo_build := true
endif
endif
@ -975,19 +980,10 @@ my_asflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flag
my_ldflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_ldflags))
endif
ifeq ($(LOCAL_FDO_SUPPORT), true)
build_with_fdo := false
ifeq ($(BUILD_FDO_INSTRUMENT), true)
build_with_fdo := true
endif
ifeq ($(BUILD_FDO_OPTIMIZE), true)
build_with_fdo := true
endif
ifeq ($(build_with_fdo), true)
my_cflags := $(patsubst -Os,-O2,$(my_cflags))
fdo_incompatible_flags=-fno-early-inlining -finline-limit=%
my_cflags := $(filter-out $(fdo_incompatible_flags),$(my_cflags))
endif
ifeq ($(my_fdo_build), true)
my_cflags := $(patsubst -Os,-O2,$(my_cflags))
fdo_incompatible_flags := -fno-early-inlining -finline-limit=%
my_cflags := $(filter-out $(fdo_incompatible_flags),$(my_cflags))
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)

28
core/combo/fdo.mk
View File

@ -18,22 +18,16 @@
$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS:=
ifeq ($(strip $(BUILD_FDO_INSTRUMENT)), true)
# Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation.
# The profile will be generated on /sdcard/fdo_profile on the device.
$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-generate=/sdcard/fdo_profile -DANDROID_FDO
$(combo_2nd_arch_prefix)TARGET_FDO_LDFLAGS := -lgcov -lgcc
else
ifeq ($(strip $(BUILD_FDO_OPTIMIZE)), true)
# Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.
ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),)
$(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := vendor/google_data/fdo_profile
endif
# Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation.
# The profile will be generated on /sdcard/fdo_profile on the device.
$(combo_2nd_arch_prefix)TARGET_FDO_INSTRUMENT_CFLAGS := -fprofile-generate=/sdcard/fdo_profile -DANDROID_FDO
$(combo_2nd_arch_prefix)TARGET_FDO_INSTRUMENT_LDFLAGS := -lgcov -lgcc
ifneq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)/$(PRODUCT_OUT))),)
$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) -DANDROID_FDO -fprofile-correction -Wcoverage-mismatch -Wno-error
else
$(warning Profile directory $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)/$(PRODUCT_OUT) does not exist. Turn off FDO.)
endif
endif
# Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.
ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),)
$(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := vendor/google_data/fdo_profile
endif
$(combo_2nd_arch_prefix)TARGET_FDO_OPTIMIZE_CFLAGS := \
-fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) \
-DANDROID_FDO -fprofile-correction -Wcoverage-mismatch -Wno-error