#-------------------------------------------------------------------------------
# Copyright (c) 2017-2020, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
#-------------------------------------------------------------------------------

#Built in compiler identification does not work for embedded targets, so
#override it here.

#Stop built in CMakeDetermine<lang>.cmake scripts to run.
set (CMAKE_C_COMPILER_ID_RUN 1)
#Stop cmake run compiler tests.
set (CMAKE_C_COMPILER_FORCED true)

if(NOT DEFINED CMAKE_C_COMPILER)
	message(FATAL_ERROR "Please set CMAKE_C_COMPILER to hold the full path of \
your compiler executable")
endif(NOT DEFINED CMAKE_C_COMPILER)

get_filename_component(_C_COMPILER_NAME ${CMAKE_C_COMPILER} NAME)

#Based on the name of the compiler executable select which tool we use.
if (_C_COMPILER_NAME MATCHES "^.*armclang(\\.exe)?$")
	set(CMAKE_C_COMPILER_ID "ARMCLANG" CACHE INTERNAL "C compiler ID" FORCE)
	set(ARM_TOOLCHAIN_FILE "Compiler/ARMClang-C")
elseif (_C_COMPILER_NAME MATCHES "^.*gcc(\\.exe)?$")
	set(CMAKE_C_COMPILER_ID "GNUARM" CACHE INTERNAL "C compiler ID" FORCE)
	set(ARM_TOOLCHAIN_FILE "Compiler/GNUARM-C")
elseif (_C_COMPILER_NAME MATCHES "^.*iccarm(\\.exe)?$")
	set(CMAKE_C_COMPILER_ID "IARARM" CACHE INTERNAL "C compiler ID" FORCE)
	set(ARM_TOOLCHAIN_FILE "Compiler/IARARM-C")
else()
	message(FATAL_ERROR "C Compiler executable ${_C_COMPILER_NAME} is unknown.\
Please add needed settings to ${CMAKE_CURRENT_LIST_FILE}")
endif ()

include(${ARM_TOOLCHAIN_FILE})