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author | Ying Wang <wangying@google.com> | 2014-04-17 10:03:35 -0700 |
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committer | Ying Wang <wangying@google.com> | 2014-05-14 16:55:04 -0700 |
commit | 6feb6d5607ce86a446645564212043964628f540 (patch) | |
tree | 082c2e4dfdcbfe7ff90dcee210b0de488cb54610 /core/host_executable_internal.mk | |
parent | da492d7ed029b721bef02ca02d98148d5d9f4b3d (diff) | |
download | build-6feb6d5607ce86a446645564212043964628f540.zip build-6feb6d5607ce86a446645564212043964628f540.tar.gz build-6feb6d5607ce86a446645564212043964628f540.tar.bz2 |
Support host multilib build
This change basically ported our target multilib to the host side.
It supports 2 host build modes: x86 and x86_64 multilib build.
For now you need to set "BUILD_HOST_64bit=true" to switch to x86_64
multilib build. Later we'll default to x86_64 build and have a flag
to force 32-bit only build, which may be needed by SDK build.
In host module definition, like in target ones, you can use the
following
LOCAL variables to set up multilib configuration:
LOCAL_MULTILIB: can be "both", "first", "32" or "64".
It also supports the same set of arch or 32-vs-64 specific LOCAL
variables.
By default, it builds only for the first arch.
To keep path compatibility, in x86_64 build files are still output to
out/host/linux-x86; Both 32-bit and 64-bit executables are in
out/host/linux-86/bin;
In x86_64 build 32-bit shared libraries are installed to
out/host/linux-x86/lib32
and 64-bit shared libraries are installed to out/host/linux-x86/lib;
32-bit object files are output to out/host/linux-x86/obj32 and 64-bit
object files
are output to out/host/linux-x86/obj.
Bug: 13751317
Change-Id: I6044f83b7db369a33e05209e8c588eb6dc83409f
Diffstat (limited to 'core/host_executable_internal.mk')
-rw-r--r-- | core/host_executable_internal.mk | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/core/host_executable_internal.mk b/core/host_executable_internal.mk new file mode 100644 index 0000000..ffb35d2 --- /dev/null +++ b/core/host_executable_internal.mk @@ -0,0 +1,33 @@ +########################################################### +## Standard rules for building an executable file. +## +## Additional inputs from base_rules.make: +## None. +########################################################### + +LOCAL_IS_HOST_MODULE := true +ifeq ($(strip $(LOCAL_MODULE_CLASS)),) +LOCAL_MODULE_CLASS := EXECUTABLES +endif +ifeq ($(strip $(LOCAL_MODULE_SUFFIX)),) +LOCAL_MODULE_SUFFIX := $(HOST_EXECUTABLE_SUFFIX) +endif + +$(call host-executable-hook) + +skip_build_from_source := +ifdef LOCAL_PREBUILT_MODULE_FILE +ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH))) +include $(BUILD_SYSTEM)/prebuilt_internal.mk +skip_build_from_source := true +endif +endif + +ifndef skip_build_from_source + +include $(BUILD_SYSTEM)/binary.mk + +$(LOCAL_BUILT_MODULE): $(all_objects) $(all_libraries) + $(transform-host-o-to-executable) + +endif # skip_build_from_source |