6feb6d5607
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
63 lines
2.1 KiB
Makefile
63 lines
2.1 KiB
Makefile
###########################################################
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## Determine if a module can be built for an arch
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##
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## Inputs from module makefile:
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## my_prefix TARGET_ or HOST_
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## my_module_multilib
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## LOCAL_MODULE_$(my_prefix)ARCH
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## LOCAL_MODULE_$(my_prefix)ARCH_WARN
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## LOCAL_MODULE_UNSUPPORTED_$(my_prefix)ARCH
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## LOCAL_MODULE_UNSUPPORTED_$(my_prefix)ARCH_WARN
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##
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## Inputs from build system:
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## $(my_prefix)IS_64_BIT
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## LOCAL_2ND_ARCH_VAR_PREFIX
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##
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## Outputs:
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## my_module_arch_supported := (true|false)
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###########################################################
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my_module_arch_supported := true
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ifeq ($(my_module_multilib),none)
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my_module_arch_supported := false
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endif
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ifeq ($(LOCAL_2ND_ARCH_VAR_PREFIX),)
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ifeq ($($(my_prefix)IS_64_BIT)|$(my_module_multilib),true|32)
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my_module_arch_supported := false
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else ifeq ($($(my_prefix)IS_64_BIT)|$(my_module_multilib),|64)
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my_module_arch_supported := false
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else ifeq ($(call directory_is_64_bit_blacklisted,$(LOCAL_PATH)),true)
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my_module_arch_supported := false
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endif
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else # LOCAL_2ND_ARCH_VAR_PREFIX
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ifeq ($(my_module_multilib),first)
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my_module_arch_supported := false
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else ifeq ($(my_module_multilib),64)
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my_module_arch_supported := false
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endif
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endif # LOCAL_2ND_ARCH_VAR_PREFIX
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ifneq (,$(LOCAL_MODULE_$(my_prefix)ARCH))
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ifeq (,$(filter $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH),$(LOCAL_MODULE_$(my_prefix)ARCH)))
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my_module_arch_supported := false
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endif
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endif
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ifneq (,$(LOCAL_MODULE_$(my_prefix)ARCH_WARN))
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ifeq (,$(filter $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH),$(LOCAL_MODULE_$(my_prefix)ARCH_WARN)))
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my_module_arch_supported := false
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$(warning $(LOCAL_MODULE): architecture $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH) not supported)
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endif
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endif
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ifneq (,$(filter $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH),$(LOCAL_MODULE_UNSUPPORTED_$(my_prefix)ARCH)))
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my_module_arch_supported := false
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endif
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ifneq (,$(filter $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH),$(LOCAL_MODULE_UNSUPPORTED_$(my_prefix)ARCH_WARN)))
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my_module_arch_supported := false
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$(warning $(LOCAL_MODULE): architecture $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH) unsupported)
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endif
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