87538e4f8b
Support TARGET_2ND_ARCH as the binary translation arch.
See target/board/generic_x86_arm/BoardConfig.mk and
target/product/aosp_x86_arm.mk as example for the setup.
In BoardConfig, use the TARGET_2ND_ARCH/etc. variables to set up the
binary translation arch;
Set "TARGET_TRANSLATE_2ND_ARCH := true" to tell the build system it's
not a typical 64-bit multilib configuration.
In product makefile, use "PRODUCT_PACKAGES += libfoo_<2nd_arch>" to
install the TARGET_2ND_ARCH libraries. This also pulls in any dependency
libraries.
By default we don't install any TARGET_2ND_ARCH modules, unless it's
pulled in by PRODUCT_PACKAGES.
Bug: 27526885
Change-Id: I0578e9c80da0532d2fa886a8fcdb140bbc703009
(cherry-pick from commit 277e75a488)
90 lines
2.7 KiB
Makefile
90 lines
2.7 KiB
Makefile
# We don't automatically set up rules to build executables for both
|
|
# TARGET_ARCH and TARGET_2ND_ARCH.
|
|
# By default, an executable is built for TARGET_ARCH.
|
|
# To build it for TARGET_2ND_ARCH in a 64bit product, use "LOCAL_MULTILIB := 32"
|
|
# To build it for both set LOCAL_MULTILIB := both and specify
|
|
# LOCAL_MODULE_PATH_32 and LOCAL_MODULE_PATH_64 or LOCAL_MODULE_STEM_32 and
|
|
# LOCAL_MODULE_STEM_64
|
|
|
|
my_skip_this_target :=
|
|
ifneq ($(filter address,$(SANITIZE_TARGET)),)
|
|
ifeq (true,$(LOCAL_FORCE_STATIC_EXECUTABLE))
|
|
my_skip_this_target := true
|
|
else ifeq (false, $(LOCAL_CLANG))
|
|
my_skip_this_target := true
|
|
endif
|
|
endif
|
|
|
|
ifneq (true,$(my_skip_this_target))
|
|
|
|
ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
|
|
LOCAL_MULTILIB := first
|
|
endif
|
|
|
|
my_prefix := TARGET_
|
|
include $(BUILD_SYSTEM)/multilib.mk
|
|
|
|
ifeq ($(my_module_multilib),both)
|
|
ifeq ($(LOCAL_MODULE_PATH_32)$(LOCAL_MODULE_STEM_32),)
|
|
$(error $(LOCAL_PATH): LOCAL_MODULE_STEM_32 or LOCAL_MODULE_PATH_32 is required for LOCAL_MULTILIB := both for module $(LOCAL_MODULE))
|
|
endif
|
|
ifeq ($(LOCAL_MODULE_PATH_64)$(LOCAL_MODULE_STEM_64),)
|
|
$(error $(LOCAL_PATH): LOCAL_MODULE_STEM_64 or LOCAL_MODULE_PATH_64 is required for LOCAL_MULTILIB := both for module $(LOCAL_MODULE))
|
|
endif
|
|
else #!LOCAL_MULTILIB == both
|
|
LOCAL_NO_2ND_ARCH_MODULE_SUFFIX := true
|
|
endif
|
|
|
|
# if TARGET_PREFER_32_BIT_EXECUTABLES is set, try to build 32-bit first
|
|
ifdef TARGET_2ND_ARCH
|
|
ifeq ($(TARGET_PREFER_32_BIT_EXECUTABLES),true)
|
|
LOCAL_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX)
|
|
else
|
|
LOCAL_2ND_ARCH_VAR_PREFIX :=
|
|
endif
|
|
endif
|
|
|
|
my_skip_non_preferred_arch :=
|
|
|
|
# check if preferred arch is supported
|
|
include $(BUILD_SYSTEM)/module_arch_supported.mk
|
|
ifeq ($(my_module_arch_supported),true)
|
|
# first arch is supported
|
|
include $(BUILD_SYSTEM)/executable_internal.mk
|
|
ifneq ($(my_module_multilib),both)
|
|
my_skip_non_preferred_arch := true
|
|
endif
|
|
endif
|
|
|
|
# check if preferred arch was not supported or asked to build both
|
|
ifndef my_skip_non_preferred_arch
|
|
ifdef TARGET_2ND_ARCH
|
|
|
|
# check if the non-preferred arch is the primary or secondary
|
|
ifeq ($(TARGET_PREFER_32_BIT_EXECUTABLES),true)
|
|
LOCAL_2ND_ARCH_VAR_PREFIX :=
|
|
else
|
|
LOCAL_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX)
|
|
endif
|
|
|
|
# check if non-preferred arch is supported
|
|
include $(BUILD_SYSTEM)/module_arch_supported.mk
|
|
ifeq ($(my_module_arch_supported),true)
|
|
# non-preferred arch is supported
|
|
OVERRIDE_BUILT_MODULE_PATH :=
|
|
LOCAL_BUILT_MODULE :=
|
|
LOCAL_INSTALLED_MODULE :=
|
|
LOCAL_MODULE_STEM :=
|
|
LOCAL_BUILT_MODULE_STEM :=
|
|
LOCAL_INSTALLED_MODULE_STEM :=
|
|
LOCAL_INTERMEDIATE_TARGETS :=
|
|
include $(BUILD_SYSTEM)/executable_internal.mk
|
|
endif
|
|
endif # TARGET_2ND_ARCH
|
|
endif # !my_skip_non_preferred_arch || LOCAL_MULTILIB
|
|
LOCAL_2ND_ARCH_VAR_PREFIX :=
|
|
LOCAL_NO_2ND_ARCH_MODULE_SUFFIX :=
|
|
|
|
my_module_arch_supported :=
|
|
|
|
endif
|