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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# This module is shared by multiple languages; use include blocker.
if(__ANDROID_COMPILER_COMMON)
return()
endif()
set(__ANDROID_COMPILER_COMMON 1)
if(CMAKE_ANDROID_NDK)
# <ndk>/build/core/definitions.mk
set(_ANDROID_STL_TYPES
none
system
c++_static
c++_shared
gabi++_static
gabi++_shared
gnustl_static
gnustl_shared
stlport_static
stlport_shared
)
if(CMAKE_ANDROID_STL_TYPE)
list(FIND _ANDROID_STL_TYPES "${CMAKE_ANDROID_STL_TYPE}" _ANDROID_STL_TYPE_FOUND)
if(_ANDROID_STL_TYPE_FOUND EQUAL -1)
string(REPLACE ";" "\n " _msg ";${_ANDROID_STL_TYPES}")
message(FATAL_ERROR
"The CMAKE_ANDROID_STL_TYPE '${CMAKE_ANDROID_STL_TYPE}' is not one of the allowed values:${_msg}\n"
)
endif()
unset(_ANDROID_STL_TYPE_FOUND)
elseif(IS_DIRECTORY ${CMAKE_ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++)
set(CMAKE_ANDROID_STL_TYPE "gnustl_static")
else()
set(CMAKE_ANDROID_STL_TYPE "c++_static")
endif()
unset(_ANDROID_STL_TYPES)
# Forward Android-specific platform variables to try_compile projects.
list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES
CMAKE_ANDROID_STL_TYPE
)
endif()
if(CMAKE_ANDROID_STL_TYPE)
if(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED)
if(CMAKE_ANDROID_STL_TYPE STREQUAL "system")
set(_ANDROID_STL_EXCEPTIONS 0)
set(_ANDROID_STL_RTTI 0)
macro(__android_stl lang)
string(APPEND CMAKE_${lang}_FLAGS_INIT " -stdlib=libstdc++")
if(_ANDROID_STL_EXCEPTIONS OR _ANDROID_STL_RTTI)
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " -lc++abi")
if(CMAKE_SYSTEM_VERSION LESS 21)
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " -landroid_support")
endif()
endif()
endmacro()
elseif(CMAKE_ANDROID_STL_TYPE STREQUAL "c++_static")
set(_ANDROID_STL_EXCEPTIONS 1)
set(_ANDROID_STL_RTTI 1)
macro(__android_stl lang)
string(APPEND CMAKE_${lang}_FLAGS_INIT " -stdlib=libc++")
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " -static-libstdc++")
endmacro()
elseif(CMAKE_ANDROID_STL_TYPE STREQUAL "c++_shared")
set(_ANDROID_STL_EXCEPTIONS 1)
set(_ANDROID_STL_RTTI 1)
macro(__android_stl lang)
string(APPEND CMAKE_${lang}_FLAGS_INIT " -stdlib=libc++")
endmacro()
elseif(CMAKE_ANDROID_STL_TYPE STREQUAL "none")
set(_ANDROID_STL_RTTI 0)
set(_ANDROID_STL_EXCEPTIONS 0)
macro(__android_stl lang)
# FIXME: Add a way to add project-wide language-specific compile-only flags.
set(CMAKE_CXX_COMPILE_OBJECT
"<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -o <OBJECT> -c <SOURCE> -nostdinc++")
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " -nostdlib++")
endmacro()
else()
message(FATAL_ERROR
"Android: STL '${CMAKE_ANDROID_STL_TYPE}' not supported by this NDK."
)
endif()
if(DEFINED CMAKE_ANDROID_RTTI)
set(_ANDROID_STL_RTTI ${CMAKE_ANDROID_RTTI})
endif()
if(DEFINED CMAKE_ANDROID_EXCEPTIONS)
set(_ANDROID_STL_EXCEPTIONS ${CMAKE_ANDROID_EXCEPTIONS})
endif()
elseif(CMAKE_ANDROID_NDK)
macro(__android_stl_inc lang dir req)
if(EXISTS "${dir}")
list(APPEND CMAKE_${lang}_STANDARD_INCLUDE_DIRECTORIES "${dir}")
elseif(${req})
message(FATAL_ERROR
"Android: STL '${CMAKE_ANDROID_STL_TYPE}' include directory not found:\n"
" ${dir}"
)
endif()
endmacro()
macro(__android_stl_lib lang lib req)
if(CMAKE_ANDROID_ARCH_ABI MATCHES "^armeabi" AND NOT CMAKE_ANDROID_ARM_MODE)
get_filename_component(_ANDROID_STL_LIBDIR "${lib}" DIRECTORY)
get_filename_component(_ANDROID_STL_LIBNAME "${lib}" NAME)
set(_ANDROID_STL_LIBTHUMB "${_ANDROID_STL_LIBDIR}/thumb/${_ANDROID_STL_LIBNAME}")
unset(_ANDROID_STL_LIBDIR)
unset(_ANDROID_STL_LIBNAME)
else()
set(_ANDROID_STL_LIBTHUMB "")
endif()
if(_ANDROID_STL_LIBTHUMB AND EXISTS "${_ANDROID_STL_LIBTHUMB}")
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " \"${_ANDROID_STL_LIBTHUMB}\"")
elseif(EXISTS "${lib}")
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " \"${lib}\"")
elseif(${req})
message(FATAL_ERROR
"Android: STL '${CMAKE_ANDROID_STL_TYPE}' library file not found:\n"
" ${lib}"
)
endif()
unset(_ANDROID_STL_LIBTHUMB)
endmacro()
include(Platform/Android/ndk-stl-${CMAKE_ANDROID_STL_TYPE})
else()
macro(__android_stl lang)
endmacro()
endif()
else()
macro(__android_stl lang)
endmacro()
endif()
# The NDK toolchain configuration files at:
#
# <ndk>/[build/core/]toolchains/*/setup.mk
#
# contain logic to set TARGET_CFLAGS and TARGET_LDFLAGS (and debug/release
# variants) to tell their build system what flags to pass for each ABI.
# We need to produce the same flags here to produce compatible binaries.
# We initialize these variables here and set them in the compiler-specific
# modules that include this one. Then we use them in the macro below when
# it is called.
set(_ANDROID_ABI_INIT_CFLAGS "")
set(_ANDROID_ABI_INIT_CFLAGS_DEBUG "")
set(_ANDROID_ABI_INIT_CFLAGS_RELEASE "")
set(_ANDROID_ABI_INIT_LDFLAGS "")
set(_ANDROID_ABI_INIT_EXE_LDFLAGS "")
macro(__android_compiler_common lang)
if(_ANDROID_ABI_INIT_CFLAGS)
string(APPEND CMAKE_${lang}_FLAGS_INIT " ${_ANDROID_ABI_INIT_CFLAGS}")
endif()
if(_ANDROID_ABI_INIT_CFLAGS_DEBUG)
string(APPEND CMAKE_${lang}_FLAGS_DEBUG_INIT " ${_ANDROID_ABI_INIT_CFLAGS_DEBUG}")
endif()
if(_ANDROID_ABI_INIT_CFLAGS_RELEASE)
string(APPEND CMAKE_${lang}_FLAGS_RELEASE_INIT " ${_ANDROID_ABI_INIT_CFLAGS_RELEASE}")
string(APPEND CMAKE_${lang}_FLAGS_MINSIZEREL_INIT " ${_ANDROID_ABI_INIT_CFLAGS_RELEASE}")
string(APPEND CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT " ${_ANDROID_ABI_INIT_CFLAGS_RELEASE}")
endif()
if(_ANDROID_ABI_INIT_LDFLAGS)
foreach(t EXE SHARED MODULE)
string(APPEND CMAKE_${t}_LINKER_FLAGS_INIT " ${_ANDROID_ABI_INIT_LDFLAGS}")
endforeach()
endif()
if(_ANDROID_ABI_INIT_EXE_LDFLAGS)
string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " ${_ANDROID_ABI_INIT_EXE_LDFLAGS}")
endif()
if(DEFINED _ANDROID_STL_EXCEPTIONS)
if(_ANDROID_STL_EXCEPTIONS)
string(APPEND CMAKE_${lang}_FLAGS_INIT " -fexceptions")
else()
string(APPEND CMAKE_${lang}_FLAGS_INIT " -fno-exceptions")
endif()
endif()
if("x${lang}" STREQUAL "xCXX" AND DEFINED _ANDROID_STL_RTTI)
if(_ANDROID_STL_RTTI)
string(APPEND CMAKE_${lang}_FLAGS_INIT " -frtti")
else()
string(APPEND CMAKE_${lang}_FLAGS_INIT " -fno-rtti")
endif()
endif()
if("x${lang}" STREQUAL "xCXX")
__android_stl(CXX)
endif()
if(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED)
string(APPEND CMAKE_${lang}_STANDARD_LIBRARIES " -latomic -lm")
endif()
# <ndk>/build/core/definitions.mk appends the sysroot's include directory
# explicitly at the end of the command-line include path so that it
# precedes the toolchain's builtin include directories. This is
# necessary so that Android API-version-specific headers are preferred
# over those in the toolchain's `include-fixed` directory (which cannot
# possibly match all versions).
#
# Do not do this for a standalone toolchain because it is already
# tied to a specific API version.
if(CMAKE_ANDROID_NDK AND NOT CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED)
if(CMAKE_SYSROOT_COMPILE)
set(_cmake_sysroot_compile "${CMAKE_SYSROOT_COMPILE}")
else()
set(_cmake_sysroot_compile "${CMAKE_SYSROOT}")
endif()
if(NOT CMAKE_ANDROID_NDK_DEPRECATED_HEADERS)
list(APPEND CMAKE_${lang}_STANDARD_INCLUDE_DIRECTORIES
"${_cmake_sysroot_compile}/usr/include"
"${_cmake_sysroot_compile}/usr/include/${CMAKE_ANDROID_ARCH_TRIPLE}"
)
else()
list(APPEND CMAKE_${lang}_STANDARD_INCLUDE_DIRECTORIES "${_cmake_sysroot_compile}/usr/include")
endif()
unset(_cmake_sysroot_compile)
endif()
endmacro()
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