Rename our allwpilib (which is now 2020) to not have 2019 in the name
Change-Id: I3c07f85ed32ab8b97db765a9b43f2a6ce7da964a
diff --git a/cmake/toolchains/arm.toolchain.cmake b/cmake/toolchains/arm.toolchain.cmake
new file mode 100644
index 0000000..184997f
--- /dev/null
+++ b/cmake/toolchains/arm.toolchain.cmake
@@ -0,0 +1,97 @@
+if(COMMAND toolchain_save_config)
+ return() # prevent recursive call
+endif()
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_VERSION 1)
+if(NOT DEFINED CMAKE_SYSTEM_PROCESSOR)
+ set(CMAKE_SYSTEM_PROCESSOR arm)
+else()
+ #message("CMAKE_SYSTEM_PROCESSOR=${CMAKE_SYSTEM_PROCESSOR}")
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/gnu.toolchain.cmake")
+
+if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm AND NOT ARM_IGNORE_FP)
+ set(FLOAT_ABI_SUFFIX "")
+ if(NOT SOFTFP)
+ set(FLOAT_ABI_SUFFIX "hf")
+ endif()
+endif()
+
+if(NOT "x${GCC_COMPILER_VERSION}" STREQUAL "x")
+ set(__GCC_VER_SUFFIX "-${GCC_COMPILER_VERSION}")
+endif()
+
+if(NOT DEFINED CMAKE_C_COMPILER)
+ find_program(CMAKE_C_COMPILER NAMES ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-gcc${__GCC_VER_SUFFIX})
+else()
+ #message(WARNING "CMAKE_C_COMPILER=${CMAKE_C_COMPILER} is defined")
+endif()
+if(NOT DEFINED CMAKE_CXX_COMPILER)
+ find_program(CMAKE_CXX_COMPILER NAMES ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-g++${__GCC_VER_SUFFIX})
+else()
+ #message(WARNING "CMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} is defined")
+endif()
+if(NOT DEFINED CMAKE_LINKER)
+ find_program(CMAKE_LINKER NAMES ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-ld${__GCC_VER_SUFFIX} ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-ld)
+else()
+ #message(WARNING "CMAKE_LINKER=${CMAKE_LINKER} is defined")
+endif()
+if(NOT DEFINED CMAKE_AR)
+ find_program(CMAKE_AR NAMES ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-ar${__GCC_VER_SUFFIX} ${GNU_MACHINE}${FLOAT_ABI_SUFFIX}-ar)
+else()
+ #message(WARNING "CMAKE_AR=${CMAKE_AR} is defined")
+endif()
+
+if(NOT DEFINED ARM_LINUX_SYSROOT AND DEFINED GNU_MACHINE)
+ set(ARM_LINUX_SYSROOT /usr/${GNU_MACHINE}${FLOAT_ABI_SUFFIX})
+endif()
+
+if(NOT DEFINED CMAKE_CXX_FLAGS)
+ set(CMAKE_CXX_FLAGS "" CACHE INTERNAL "")
+ set(CMAKE_C_FLAGS "" CACHE INTERNAL "")
+ set(CMAKE_SHARED_LINKER_FLAGS "" CACHE INTERNAL "")
+ set(CMAKE_MODULE_LINKER_FLAGS "" CACHE INTERNAL "")
+ set(CMAKE_EXE_LINKER_FLAGS "" CACHE INTERNAL "")
+
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
+ if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
+ set(CMAKE_CXX_FLAGS "-mthumb ${CMAKE_CXX_FLAGS}")
+ set(CMAKE_C_FLAGS "-mthumb ${CMAKE_C_FLAGS}")
+ set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,nocopyreloc")
+ endif()
+ if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
+ set(ARM_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now")
+ elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64)
+ set(ARM_LINKER_FLAGS "-Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now")
+ endif()
+ set(CMAKE_SHARED_LINKER_FLAGS "${ARM_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
+ set(CMAKE_MODULE_LINKER_FLAGS "${ARM_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}")
+ set(CMAKE_EXE_LINKER_FLAGS "${ARM_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
+else()
+ #message(WARNING "CMAKE_CXX_FLAGS='${CMAKE_CXX_FLAGS}' is defined")
+endif()
+
+if(USE_NEON)
+ message(WARNING "You use obsolete variable USE_NEON to enable NEON instruction set. Use -DENABLE_NEON=ON instead." )
+ set(ENABLE_NEON TRUE)
+elseif(USE_VFPV3)
+ message(WARNING "You use obsolete variable USE_VFPV3 to enable VFPV3 instruction set. Use -DENABLE_VFPV3=ON instead." )
+ set(ENABLE_VFPV3 TRUE)
+endif()
+
+set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${ARM_LINUX_SYSROOT})
+
+if(EXISTS ${CUDA_TOOLKIT_ROOT_DIR})
+ set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${CUDA_TOOLKIT_ROOT_DIR})
+endif()
+
+set(TOOLCHAIN_CONFIG_VARS ${TOOLCHAIN_CONFIG_VARS}
+ ARM_LINUX_SYSROOT
+ ENABLE_NEON
+ ENABLE_VFPV3
+ CUDA_TOOLKIT_ROOT_DIR
+)
+toolchain_save_config()