[Piglit] [PATCH 3/6] cmake: Add an Android platform and toolchain

[Chad Versace]

On 10/24/2012 06:11 AM, groleo at gmail.com wrote:
> From: Adrian Marius Negreanu <adrian.m.negreanu at intel.com>
> 
> Signed-off-by: Adrian Marius Negreanu <adrian.m.negreanu at intel.com>
> ---
> :000000 100644 0000000... 9dd8b3c... A	cmake/Modules/Compiler/Android.cmake
> :000000 100644 0000000... 2298263... A	cmake/Modules/Platform/Android.cmake
>  cmake/Modules/Compiler/Android.cmake | 70 ++++++++++++++++++++++++++++++++++++
>  cmake/Modules/Platform/Android.cmake | 35 ++++++++++++++++++
>  2 files changed, 105 insertions(+)
> 
> diff --git a/cmake/Modules/Compiler/Android.cmake b/cmake/Modules/Compiler/Android.cmake
> new file mode 100644
> index 0000000..9dd8b3c
> --- /dev/null
> +++ b/cmake/Modules/Compiler/Android.cmake
> @@ -0,0 +1,70 @@

This file is very clever. I always wondered how people integrated CMake
with Android.

> +# Set Android toolchain specifics
> +
> +SET(CMAKE_SYSTEM_NAME Android)
> +SET(CMAKE_SYSTEM_VERSION 1)
> +SET(UNIX True)
> +SET(ANDROID True)
> +
> +IF($ENV{PLATFORM_ANDROID})
> +    return()
> +ENDIF()
> +
> +SET(ENV{PLATFORM_ANDROID} 1)
> +
> +# needed by get_build_var
> +SET(ENV{CALLED_FROM_SETUP} true)
> +SET(ENV{BUILD_SYSTEM} build/core)
> +
> +MACRO(get_build_var arg1 _output)
> +    EXECUTE_PROCESS(COMMAND make --no-print-directory -C $ENV{ANDROID_BUILD_TOP} -f build/core/config.mk dumpvar-${arg1}
> +    OUTPUT_VARIABLE ${_output}
> +    OUTPUT_STRIP_TRAILING_WHITESPACE
> +    )
> +ENDMACRO()
> +
> +get_build_var(TARGET_ARCH __TARGET_ARCH)
> +get_build_var(TARGET_GLOBAL_CFLAGS  __TARGET_GLOBAL_CFLAGS)
> +get_build_var(TARGET_GLOBAL_LDFLAGS __TARGET_GLOBAL_LDFLAGS)
> +get_build_var(TARGET_CC   CMAKE_C_COMPILER)
> +get_build_var(TARGET_CXX  CMAKE_CXX_COMPILER)
> +
> +SET(CMAKE_C_COMPILER   $ENV{ANDROID_BUILD_TOP}/${CMAKE_C_COMPILER} CACHE STRING "")
> +SET(CMAKE_CXX_COMPILER $ENV{ANDROID_BUILD_TOP}/${CMAKE_CXX_COMPILER} CACHE STRING "")
> +
> +SET(__NDK_SYSROOT   $ENV{ANDROID_BUILD_TOP}/prebuilts/ndk/android-ndk-r8/platforms/android-14/arch-${__TARGET_ARCH})
> +SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} ${__TARGET_GLOBAL_CFLAGS} -I$ENV{ANDROID_BUILD_TOP} --sysroot=${__NDK_SYSROOT} -Wno-error=return-type " CACHE STRING "c flags")
> +SET(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} ${__TARGET_GLOBAL_CFLAGS} -I$ENV{ANDROID_BUILD_TOP} --sysroot=${__NDK_SYSROOT} -Wno-error=return-type " CACHE STRING "c flags")
> +
> +SET(CMAKE_LD_FLAGS  "${CMAKE_LD_FLAGS} -Wl,--allow-shlib-undefined ${__TARGET_GLOBAL_LDFLAGS} --sysroot=${__NDK_SYSROOT}" CACHE STRING "linker flags")
> +SET(CMAKE_EXE_LINKER_FLAGS ${CMAKE_LD_FLAGS} CACHE STRING "executable linker flags")
> +
> +# search only inside sdk, not the remainder of the host filesystem
> +SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
> +SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
> +SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)


> diff --git a/cmake/Modules/Platform/Android.cmake b/cmake/Modules/Platform/Android.cmake

> +# Set Android specific paths
> +
> +LIST(APPEND CMAKE_PREFIX_PATH $ENV{ANDROID_PRODUCT_OUT}/system)
> +LIST(APPEND CMAKE_PREFIX_PATH $ENV{ANDROID_BUILD_TOP}/external/waffle/include/waffle)

Now that Waffle installs its headers to $ANDROID_PRODUCT_OUT/obj/include/waffle-1,
is the line above still necessary? I don't know; the Android build system is still
mysterious to me.


> +LIST(APPEND CMAKE_PREFIX_PATH $ENV{ANDROID_BUILD_TOP}/external/zlib)
> +
> +LIST(APPEND CMAKE_SYSTEM_INCLUDE_PATH
> +  $ENV{ANDROID_BUILD_TOP}/external/mesa/include
> +  )