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Android: Detect and save the architecture, ABI, and processor 

Add new CMakeSystem.cmake entries for the architecture and ABI.
Store the processor in CMAKE_SYSTEM_PROCESSOR.
This commit is contained in:
Brad King 2016-06-02 11:29:57 -04:00
parent fde59c4d88
commit 9e032304ea
1 changed files with 88 additions and 1 deletions
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89
Modules/Platform/Android-Determine.cmake
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@ -87,10 +87,97 @@ if(NOT CMAKE_SYSTEM_VERSION MATCHES "^[0-9]+$")
message(FATAL_ERROR "Android: The API specified by CMAKE_SYSTEM_VERSION='${CMAKE_SYSTEM_VERSION}' is not an integer.")
endif()
# https://developer.android.com/ndk/guides/abis.html
set(_ANDROID_ABI_arm64-v8a_PROC "aarch64")
set(_ANDROID_ABI_arm64-v8a_ARCH "arm64")
set(_ANDROID_ABI_armeabi-v7a_PROC "armv7-a")
set(_ANDROID_ABI_armeabi-v7a_ARCH "arm")
set(_ANDROID_ABI_armeabi-v6_PROC "armv6")
set(_ANDROID_ABI_armeabi-v6_ARCH "arm")
set(_ANDROID_ABI_armeabi_PROC "armv5te")
set(_ANDROID_ABI_armeabi_ARCH "arm")
set(_ANDROID_ABI_mips_PROC "mips")
set(_ANDROID_ABI_mips_ARCH "mips")
set(_ANDROID_ABI_mips64_PROC "mips64")
set(_ANDROID_ABI_mips64_ARCH "mips64")
set(_ANDROID_ABI_x86_PROC "i686")
set(_ANDROID_ABI_x86_ARCH "x86")
set(_ANDROID_ABI_x86_64_PROC "x86_64")
set(_ANDROID_ABI_x86_64_ARCH "x86_64")
set(_ANDROID_PROC_aarch64_ARCH_ABI "arm64-v8a")
set(_ANDROID_PROC_armv7-a_ARCH_ABI "armeabi-v7a")
set(_ANDROID_PROC_armv6_ARCH_ABI "armeabi-v6")
set(_ANDROID_PROC_armv5te_ARCH_ABI "armeabi")
set(_ANDROID_PROC_i686_ARCH_ABI "x86")
set(_ANDROID_PROC_mips_ARCH_ABI "mips")
set(_ANDROID_PROC_mips64_ARCH_ABI "mips64")
set(_ANDROID_PROC_x86_64_ARCH_ABI "x86_64")
# Validate inputs.
if(CMAKE_ANDROID_ARCH_ABI AND NOT DEFINED "_ANDROID_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC")
message(FATAL_ERROR "Android: Unknown ABI CMAKE_ANDROID_ARCH_ABI='${CMAKE_ANDROID_ARCH_ABI}'.")
endif()
if(CMAKE_SYSTEM_PROCESSOR AND NOT DEFINED "_ANDROID_PROC_${CMAKE_SYSTEM_PROCESSOR}_ARCH_ABI")
message(FATAL_ERROR "Android: Unknown processor CMAKE_SYSTEM_PROCESSOR='${CMAKE_SYSTEM_PROCESSOR}'.")
endif()
# Select an ABI.
if(NOT CMAKE_ANDROID_ARCH_ABI)
if(CMAKE_SYSTEM_PROCESSOR)
set(CMAKE_ANDROID_ARCH_ABI "${_ANDROID_PROC_${CMAKE_SYSTEM_PROCESSOR}_ARCH_ABI}")
else()
# https://developer.android.com/ndk/guides/application_mk.html
# Default is the oldest ARM ABI.
set(CMAKE_ANDROID_ARCH_ABI "armeabi")
endif()
endif()
set(CMAKE_ANDROID_ARCH "${_ANDROID_ABI_${CMAKE_ANDROID_ARCH_ABI}_ARCH}")
# Select a processor.
if(NOT CMAKE_SYSTEM_PROCESSOR)
set(CMAKE_SYSTEM_PROCESSOR "${_ANDROID_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC}")
endif()
# If the user specified both an ABI and a processor then they might not match.
if(NOT _ANDROID_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC STREQUAL CMAKE_SYSTEM_PROCESSOR)
message(FATAL_ERROR "Android: The specified CMAKE_ANDROID_ARCH_ABI='${CMAKE_ANDROID_ARCH_ABI}' and CMAKE_SYSTEM_PROCESSOR='${CMAKE_SYSTEM_PROCESSOR}' is not a valid combination.")
endif()
# Save the Android-specific information in CMakeSystem.cmake.
set(CMAKE_SYSTEM_CUSTOM_CODE "
set(CMAKE_ANDROID_NDK \"${CMAKE_ANDROID_NDK}\")
set(CMAKE_ANDROID_ARCH \"${CMAKE_ANDROID_ARCH}\")
set(CMAKE_ANDROID_ARCH_ABI \"${CMAKE_ANDROID_ARCH_ABI}\")
")
# Select an ARM variant.
if(CMAKE_ANDROID_ARCH_ABI MATCHES "^armeabi")
if(CMAKE_ANDROID_ARM_MODE)
set(CMAKE_ANDROID_ARM_MODE 1)
else()
set(CMAKE_ANDROID_ARM_MODE 0)
endif()
string(APPEND CMAKE_SYSTEM_CUSTOM_CODE
"set(CMAKE_ANDROID_ARM_MODE \"${CMAKE_ANDROID_ARM_MODE}\")\n"
)
elseif(DEFINED CMAKE_ANDROID_ARM_MODE)
message(FATAL_ERROR "Android: CMAKE_ANDROID_ARM_MODE is set but is valid only for 'armeabi' architectures.")
endif()
if(CMAKE_ANDROID_ARCH_ABI STREQUAL "armeabi-v7a")
if(CMAKE_ANDROID_ARM_NEON)
set(CMAKE_ANDROID_ARM_NEON 1)
else()
set(CMAKE_ANDROID_ARM_NEON 0)
endif()
string(APPEND CMAKE_SYSTEM_CUSTOM_CODE
"set(CMAKE_ANDROID_ARM_NEON \"${CMAKE_ANDROID_ARM_NEON}\")\n"
)
elseif(DEFINED CMAKE_ANDROID_ARM_NEON)
message(FATAL_ERROR "Android: CMAKE_ANDROID_ARM_NEON is set but is valid only for 'armeabi-v7a' architecture.")
endif()
# Report the chosen architecture.
message(STATUS "Android: Targeting API '${CMAKE_SYSTEM_VERSION}'")
message(STATUS "Android: Targeting API '${CMAKE_SYSTEM_VERSION}' with architecture '${CMAKE_ANDROID_ARCH}', ABI '${CMAKE_ANDROID_ARCH_ABI}', and processor '${CMAKE_SYSTEM_PROCESSOR}'")