Support x86+arm multilib build.
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 277e75a488b1b6599482aed9f7c046747baa10df)
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 5606896..c4fbe11 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -55,6 +55,12 @@
ifeq ($(my_host_cross),true)
my_module_tags :=
endif
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+ifdef LOCAL_2ND_ARCH_VAR_PREFIX
+# Don't pull in modules by tags if this is for translation TARGET_2ND_ARCH.
+ my_module_tags :=
+endif
+endif
# Ninja has an implicit dependency on the command being run, and kati will
# regenerate the ninja manifest if any read makefile changes, so there is no
@@ -123,7 +129,17 @@
my_32_64_bit_suffix := $(if $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)IS_64_BIT),64,32)
ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE))
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+# When in TARGET_TRANSLATE_2ND_ARCH both TARGET_ARCH and TARGET_2ND_ARCH are 32-bit,
+# to avoid path conflict we force using LOCAL_MODULE_PATH_64 for the first arch.
+ifdef LOCAL_2ND_ARCH_VAR_PREFIX
+my_multilib_module_path := $(LOCAL_MODULE_PATH_32)
+else # ! LOCAL_2ND_ARCH_VAR_PREFIX
+my_multilib_module_path := $(LOCAL_MODULE_PATH_64)
+endif # ! LOCAL_2ND_ARCH_VAR_PREFIX
+else # ! TARGET_TRANSLATE_2ND_ARCH
my_multilib_module_path := $(strip $(LOCAL_MODULE_PATH_$(my_32_64_bit_suffix)))
+endif # ! TARGET_TRANSLATE_2ND_ARCH
ifdef my_multilib_module_path
my_module_path := $(my_multilib_module_path)
else
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 30433f6..b286cb7 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -70,11 +70,13 @@
my_2nd_arch_prefix :=
include $(BUILD_SYSTEM)/dex_preopt_libart_boot.mk
+ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
ifdef TARGET_2ND_ARCH
my_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
include $(BUILD_SYSTEM)/dex_preopt_libart_boot.mk
my_2nd_arch_prefix :=
endif
+endif
########################################################################
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 1840b7e..c3cd3c5 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -324,10 +324,19 @@
# Out for TARGET_2ND_ARCH
TARGET_2ND_ARCH_VAR_PREFIX := $(HOST_2ND_ARCH_VAR_PREFIX)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+# With this you can reference the arm binary translation library with libfoo_arm in PRODUCT_PACKAGES.
+TARGET_2ND_ARCH_MODULE_SUFFIX := _$(TARGET_2ND_ARCH)
+else
TARGET_2ND_ARCH_MODULE_SUFFIX := $(HOST_2ND_ARCH_MODULE_SUFFIX)
+endif
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATES := $(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATE_LIBRARIES := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATES)/lib
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES := $(target_out_shared_libraries_base)/lib/$(TARGET_2ND_ARCH)
+else
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES := $(target_out_shared_libraries_base)/lib
+endif
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_RENDERSCRIPT_BITCODE := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES)
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_EXECUTABLES := $(TARGET_OUT_EXECUTABLES)
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_APPS := $(TARGET_OUT_APPS)
@@ -351,7 +360,11 @@
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_EXECUTABLES := $(TARGET_OUT_DATA_EXECUTABLES)
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_SHARED_LIBRARIES := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES)
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_APPS := $(TARGET_OUT_DATA_APPS)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest/$(TARGET_2ND_ARCH)
+else
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest
+endif
TARGET_OUT_CACHE := $(PRODUCT_OUT)/cache
@@ -375,7 +388,11 @@
TARGET_OUT_VENDOR_ETC := $(TARGET_OUT_VENDOR)/etc
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_EXECUTABLES := $(TARGET_OUT_VENDOR_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_SHARED_LIBRARIES := $(TARGET_OUT_VENDOR)/lib/$(TARGET_2ND_ARCH)
+else
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_SHARED_LIBRARIES := $(TARGET_OUT_VENDOR)/lib
+endif
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_APPS := $(TARGET_OUT_VENDOR_APPS)
TARGET_OUT_OEM := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_OEM)
@@ -391,7 +408,11 @@
TARGET_OUT_OEM_ETC := $(TARGET_OUT_OEM)/etc
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_EXECUTABLES := $(TARGET_OUT_OEM_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_SHARED_LIBRARIES := $(TARGET_OUT_OEM)/lib/$(TARGET_2ND_ARCH)
+else
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_SHARED_LIBRARIES := $(TARGET_OUT_OEM)/lib
+endif
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_APPS := $(TARGET_OUT_OEM_APPS)
TARGET_OUT_ODM := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ODM)
@@ -405,7 +426,11 @@
TARGET_OUT_ODM_ETC := $(TARGET_OUT_ODM)/etc
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_EXECUTABLES := $(TARGET_OUT_ODM_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_SHARED_LIBRARIES := $(TARGET_OUT_ODM)/lib/$(TARGET_2ND_ARCH)
+else
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_SHARED_LIBRARIES := $(TARGET_OUT_ODM)/lib
+endif
$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_APPS := $(TARGET_OUT_ODM_APPS)
TARGET_OUT_BREAKPAD := $(PRODUCT_OUT)/breakpad
diff --git a/core/executable.mk b/core/executable.mk
index 70ef0d9..6091a52 100644
--- a/core/executable.mk
+++ b/core/executable.mk
@@ -17,6 +17,10 @@
ifneq (true,$(my_skip_this_target))
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+LOCAL_MULTILIB := first
+endif
+
my_prefix := TARGET_
include $(BUILD_SYSTEM)/multilib.mk
diff --git a/core/main.mk b/core/main.mk
index 6742dee..d74d8bb 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -582,19 +582,33 @@
#
# Resolve the required module name to 32-bit or 64-bit variant.
# Get a list of corresponding 32-bit module names, if one exists.
+ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
define get-32-bit-modules
-$(strip $(foreach m,$(1),\
+$(sort $(foreach m,$(1),\
$(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
- $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX))))
+ $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX))\
+ $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
+ $(m)$(HOST_2ND_ARCH_MODULE_SUFFIX))\
+ ))
endef
# Get a list of corresponding 32-bit module names, if one exists;
# otherwise return the original module name
define get-32-bit-modules-if-we-can
-$(strip $(foreach m,$(1),\
- $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
- $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX),
- $(m))))
+$(sort $(foreach m,$(1),\
+ $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS)$(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
+ $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX)) \
+ $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX)),\
+ $(m))))
endef
+else # TARGET_TRANSLATE_2ND_ARCH
+# For binary translation config, by default only install the first arch.
+define get-32-bit-modules
+endef
+
+define get-32-bit-modules-if-we-can
+$(strip $(1))
+endef
+endif # TARGET_TRANSLATE_2ND_ARCH
# If a module is for a cross host os, the required modules must be for
# that OS too.
diff --git a/core/package.mk b/core/package.mk
index 78b65db..8c2c435 100644
--- a/core/package.mk
+++ b/core/package.mk
@@ -2,6 +2,10 @@
# TARGET_ARCH and TARGET_2ND_ARCH.
# To build it for TARGET_2ND_ARCH in a 64bit product, use "LOCAL_MULTILIB := 32".
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+LOCAL_MULTILIB := first
+endif
+
my_prefix := TARGET_
include $(BUILD_SYSTEM)/multilib.mk
diff --git a/core/prebuilt.mk b/core/prebuilt.mk
index fd63560..776827a 100644
--- a/core/prebuilt.mk
+++ b/core/prebuilt.mk
@@ -11,6 +11,10 @@
LOCAL_HOST_PREFIX :=
else
my_prefix := TARGET_
+
+ ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+ LOCAL_MULTILIB := first
+ endif
endif
include $(BUILD_SYSTEM)/multilib.mk