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Android: Add CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG variable

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The NDK provides prebuilt toolchain files in directories named for the
host architecture.  The NDK build system calls this `HOST_TAG`.
Expose the value publicly for use by clients that need to pass it
to external tools.

Suggested-by: Ruslan Baratov <ruslan_baratov@yahoo.com>
This commit is contained in:
Brad King 2016-11-11 15:22:43 -05:00
parent 3d42a72bd5
commit d95e6dff3c
7 changed files with 24 additions and 0 deletions
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1
Help/manual/cmake-variables.7.rst
View File

@ -244,6 +244,7 @@ Variables that Control the Build
/variable/CMAKE_ANDROID_NATIVE_LIB_DEPENDENCIES
/variable/CMAKE_ANDROID_NATIVE_LIB_DIRECTORIES
/variable/CMAKE_ANDROID_NDK
/variable/CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG
/variable/CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION
/variable/CMAKE_ANDROID_PROCESS_MAX
/variable/CMAKE_ANDROID_PROGUARD

5
Help/release/dev/android-info-variables.rst
View File

@ -4,3 +4,8 @@ android-info-variables
* When :ref:`Cross Compiling for Android with the NDK`, the
:variable:`CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION` variable is
now set by CMake if it is not set by the user or toolchain file.
* When :ref:`Cross Compiling for Android with the NDK`, a new
:variable:`CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG` variable is
now set by CMake to expose the host directory component of the
path to the NDK prebuilt toolchains.

6
Help/variable/CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG.rst Normal file
View File

@ -0,0 +1,6 @@
CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG
------------------------------------
When :ref:`Cross Compiling for Android with the NDK`, this variable
provides the NDK's "host tag" used to construct the path to prebuilt
toolchains that run on the host.

1
Modules/Platform/Android/Determine-Compiler-NDK.cmake
View File

@ -210,6 +210,7 @@ endif()
# Help CMakeFindBinUtils locate things.
set(_CMAKE_TOOLCHAIN_PREFIX "${_ANDROID_TOOL_PREFIX}")
set(_ANDROID_TOOL_NDK_TOOLCHAIN_HOST_TAG "${_ANDROID_HOST_DIR}")
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "${_ANDROID_TOOL_VERS_NDK}")
set(_ANDROID_TOOL_C_TOOLCHAIN_VERSION "${_ANDROID_TOOL_VERS}")

1
Modules/Platform/Android/Determine-Compiler-Standalone.cmake
View File

@ -58,4 +58,5 @@ else()
set(_ANDROID_TOOL_CXX_COMPILER_EXTERNAL_TOOLCHAIN "")
endif()
set(_ANDROID_TOOL_NDK_TOOLCHAIN_HOST_TAG "")
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "")

2
Modules/Platform/Android/Determine-Compiler.cmake
View File

@ -40,6 +40,7 @@ if(CMAKE_ANDROID_NDK)
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
include(Platform/Android/Determine-Compiler-Standalone)
else()
set(_ANDROID_TOOL_NDK_TOOLCHAIN_HOST_TAG "")
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "")
set(_ANDROID_TOOL_C_COMPILER "")
set(_ANDROID_TOOL_C_TOOLCHAIN_VERSION "")
@ -62,6 +63,7 @@ macro(__android_determine_compiler lang)
# Save the Android-specific information in CMake${lang}Compiler.cmake.
set(CMAKE_${lang}_COMPILER_CUSTOM_CODE "
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG \"${_ANDROID_TOOL_NDK_TOOLCHAIN_HOST_TAG}\")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION \"${_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION}\")
set(CMAKE_${lang}_ANDROID_TOOLCHAIN_VERSION \"${_ANDROID_TOOL_${lang}_TOOLCHAIN_VERSION}\")
set(CMAKE_${lang}_COMPILER_EXTERNAL_TOOLCHAIN \"${_ANDROID_TOOL_${lang}_COMPILER_EXTERNAL_TOOLCHAIN}\")

8
Tests/RunCMake/Android/common.cmake
View File

@ -32,6 +32,14 @@ if(CMAKE_ANDROID_NDK)
"which does not appear in CMAKE_C_COMPILER:\n"
" ${CMAKE_C_COMPILER}")
endif()
if(NOT CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG)
message(SEND_ERROR "CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG is not set!")
elseif(NOT "${CMAKE_C_COMPILER}" MATCHES "prebuilt/${CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG}/bin")
message(SEND_ERROR "CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG is\n"
" ${CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG}\n"
"which does not appear in CMAKE_C_COMPILER:\n"
" ${CMAKE_C_COMPILER}")
endif()
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
execute_process(
COMMAND ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang --version