platform_build/core/executable.mk
Ying Wang 14a6cbd902 Refine module name resolving in multilib build
-- Added TARGET_PREFER_32_BIT, which sets LOCAL_32_BIT_ONLY for an
   executable, if LOCAL_NO_2ND_ARCH is not true.

Name resolving in 64-bit multilib build:
-- Name resolving in PRODUCT_PACKAGES:
   foo:32 resolves to foo_32;
   foo:64 resolves to foo;
   foo resolves to both foo and foo_32 (if foo_32 is defined).

-- Name resolving for LOCAL_REQUIRED_MODULES:
   If a module is built for 2nd arch, its required module resolves to
   32-bit variant, if it exits;
   Otherwise for executable and shared library, a required module
   resolves to the default 64-bit variant; for other module classes,
   required module foo resolves to both foo and foo_32 (if foo_32 is
   defined)

Bug: 12898862
Change-Id: I5fda1a77f58814097b10b5ad2743ee25adfaecc4
2014-02-10 22:39:14 -08:00

21 lines
663 B
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_32_BIT_ONLY := true".
ifeq ($(TARGET_PREFER_32_BIT),true)
ifneq ($(LOCAL_NO_2ND_ARCH),true)
LOCAL_32_BIT_ONLY := true
endif
endif
ifeq ($(TARGET_IS_64_BIT)|$(LOCAL_32_BIT_ONLY),true|true)
LOCAL_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX)
else
LOCAL_2ND_ARCH_VAR_PREFIX :=
endif
LOCAL_NO_2ND_ARCH_MODULE_SUFFIX := true
include $(BUILD_SYSTEM)/executable_internal.mk
LOCAL_2ND_ARCH_VAR_PREFIX :=
LOCAL_NO_2ND_ARCH_MODULE_SUFFIX :=