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85 lines
3.4 KiB
85 lines
3.4 KiB
# Determines the types of NDK modules the current module is allowed to link to.
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# Input variables:
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# LOCAL_MODULE
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# LOCAL_MODULE_CLASS
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# LOCAL_NDK_STL_VARIANT
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# LOCAL_SDK_VERSION
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# Output variables:
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# my_ndk_stl_family: Family of the NDK STL.
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# my_ndk_stl_link_type: STL link type, static or shared.
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# my_allowed_ndk_types: Types of NDK modules that may be linked.
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# my_warn_ndk_types: Types of NDK modules that shouldn't be linked, but are.
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my_allowed_ndk_types :=
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my_warn_ndk_types :=
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my_ndk_stl_family :=
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my_ndk_stl_link_type :=
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ifdef LOCAL_SDK_VERSION
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ifeq ($(LOCAL_NDK_STL_VARIANT),)
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my_ndk_stl_family := system
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my_ndk_stl_link_type := shared
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else ifeq ($(LOCAL_NDK_STL_VARIANT),system)
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my_ndk_stl_family := system
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my_ndk_stl_link_type := shared
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else ifeq ($(LOCAL_NDK_STL_VARIANT),c++_shared)
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my_ndk_stl_family := libc++
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my_ndk_stl_link_type := shared
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else ifeq ($(LOCAL_NDK_STL_VARIANT),c++_static)
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my_ndk_stl_family := libc++
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my_ndk_stl_link_type := static
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else ifeq ($(LOCAL_NDK_STL_VARIANT),none)
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my_ndk_stl_family := none
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my_ndk_stl_link_type := none
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else
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$(call pretty-error,invalid LOCAL_NDK_STL_VARIANT: $(LOCAL_NDK_STL_VARIANT))
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endif
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ifeq ($(LOCAL_MODULE_CLASS),STATIC_LIBRARIES)
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# The "none" link type indicates that nothing is actually linked. Since
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# this is a static library, it's still up to the final use of the
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# library whether a static or shared STL should be used.
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my_ndk_stl_link_type := none
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endif
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# The system STL is only the C++ ABI layer, so it's compatible with any STL.
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my_allowed_ndk_types += native:ndk:system:shared
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my_allowed_ndk_types += native:ndk:system:none
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# Libaries that don't use the STL can be linked to anything.
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my_allowed_ndk_types += native:ndk:none:none
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# And it's always okay to link a static library that uses your own STL type.
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# Since nothing was actually linked for the static library, it is up to the
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# first linked library in the dependency chain which gets used.
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my_allowed_ndk_types += native:ndk:$(my_ndk_stl_family):none
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ifeq ($(LOCAL_MODULE_CLASS),APPS)
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# For an app package, it's actually okay to depend on any set of STLs.
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# If any of the individual libraries depend on each other they've
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# already been checked for consistency, and if they don't they'll be
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# kept isolated by RTLD_LOCAL anyway.
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my_allowed_ndk_types += \
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native:ndk:libc++:shared native:ndk:libc++:static
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# The "none" link type that used by static libraries is intentionally
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# omitted here. We should only be dealing with shared libraries in
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# LOCAL_JNI_SHARED_LIBRARIES.
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else ifeq ($(my_ndk_stl_link_type),shared)
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# Modules linked to a shared STL can only use another shared STL.
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my_allowed_ndk_types += native:ndk:$(my_ndk_stl_family):shared
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endif
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# Else we are a non-static library that uses a static STL, and are
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# incompatible with all other shared libraries that use an STL.
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else
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my_allowed_ndk_types := \
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native:ndk:none:none \
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native:ndk:system:none \
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native:ndk:system:shared \
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ifeq ($(LOCAL_MODULE_CLASS),APPS)
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# CTS is bad and it should feel bad: http://b/13249737
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my_warn_ndk_types += native:ndk:libc++:static
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endif
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endif
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