Support to build executables for 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_32BIT_ONLY := true
To skip a module for TARGET_2ND_ARCH, use:
LOCAL_NO_2ND_ARCH := true

Bug: 11654773
Change-Id: Ieb293d25b21024bfe1b554044df338e064ac7b46

1 files changed, 9 insertions, 65 deletions

diff --git a/core/executable.mk b/core/executable.mk
index f35ebcc..baa6a74 100644
--- a/core/executable.mk
+++ b/core/executable.mk
@@ -1,69 +1,13 @@
-###########################################################
-## Standard rules for building an executable file.
-##
-## Additional inputs from base_rules.make:
-## None.
-###########################################################
+# 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_32BIT_ONLY := true".
 
-ifeq ($(strip $(LOCAL_MODULE_CLASS)),)
-LOCAL_MODULE_CLASS := EXECUTABLES
-endif
-ifeq ($(strip $(LOCAL_MODULE_SUFFIX)),)
-LOCAL_MODULE_SUFFIX := $(TARGET_EXECUTABLE_SUFFIX)
-endif
-
-$(call target-executable-hook)
-
-skip_build_from_source :=
-ifdef LOCAL_PREBUILT_MODULE_FILE
-ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH)))
-include $(BUILD_PREBUILT)
-skip_build_from_source := true
-endif
-endif
-
-ifndef skip_build_from_source
-
-include $(BUILD_SYSTEM)/dynamic_binary.mk
-
-# Define PRIVATE_ variables from global vars
-my_target_global_ld_dirs := $(TARGET_GLOBAL_LD_DIRS)
-ifeq ($(LOCAL_CLANG),true)
-my_target_global_ldflags := $(CLANG_TARGET_GLOBAL_LDFLAGS)
-else
-my_target_global_ldflags := $(TARGET_GLOBAL_LDFLAGS)
-endif
-my_target_fdo_lib := $(TARGET_FDO_LIB)
-my_target_libgcc := $(TARGET_LIBGCC)
-my_target_crtbegin_dynamic_o := $(TARGET_CRTBEGIN_DYNAMIC_O)
-my_target_crtbegin_static_o := $(TARGET_CRTBEGIN_STATIC_O)
-my_target_crtend_o := $(TARGET_CRTEND_O)
-ifdef LOCAL_SDK_VERSION
-# Make sure the prebuilt NDK paths are put ahead of the TARGET_GLOBAL_LD_DIRS,
-# so we don't have race condition when the system libraries (such as libc, libstdc++) are also built in the tree.
-my_target_global_ld_dirs := \
-    $(addprefix -L, $(patsubst %/,%,$(dir $(my_ndk_stl_shared_lib_fullpath))) \
-    $(my_ndk_version_root)/usr/lib) \
-    $(my_target_global_ld_dirs)
-my_target_global_ldflags := $(my_ndk_stl_shared_lib) $(my_target_global_ldflags)
-my_target_crtbegin_dynamic_o := $(wildcard $(my_ndk_version_root)/usr/lib/crtbegin_dynamic.o)
-my_target_crtbegin_static_o := $(wildcard $(my_ndk_version_root)/usr/lib/crtbegin_static.o)
-my_target_crtend_o := $(wildcard $(my_ndk_version_root)/usr/lib/crtend_android.o)
-endif
-$(linked_module): PRIVATE_TARGET_GLOBAL_LD_DIRS := $(my_target_global_ld_dirs)
-$(linked_module): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(my_target_global_ldflags)
-$(linked_module): PRIVATE_TARGET_FDO_LIB := $(my_target_fdo_lib)
-$(linked_module): PRIVATE_TARGET_LIBGCC := $(my_target_libgcc)
-$(linked_module): PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O := $(my_target_crtbegin_dynamic_o)
-$(linked_module): PRIVATE_TARGET_CRTBEGIN_STATIC_O := $(my_target_crtbegin_static_o)
-$(linked_module): PRIVATE_TARGET_CRTEND_O := $(my_target_crtend_o)
-
-ifeq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
-$(linked_module): $(my_target_crtbegin_static_o) $(all_objects) $(all_libraries) $(my_target_crtend_o)
-	$(transform-o-to-static-executable)
+ifeq ($(TARGET_IS_64_BIT)|$(LOCAL_32BIT_ONLY),true|true)
+LOCAL_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX)
 else
-$(linked_module): $(my_target_crtbegin_dynamic_o) $(all_objects) $(all_libraries) $(my_target_crtend_o)
-	$(transform-o-to-executable)
+LOCAL_2ND_ARCH_VAR_PREFIX :=
 endif
 
-endif  # skip_build_from_source
+include $(BUILD_SYSTEM)/executable_internal.mk
+LOCAL_2ND_ARCH_VAR_PREFIX :=