blob: 60762dd0e8bcbbdcc5aefd30f13066f4819c184a [file] [log] [blame]
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_PROCESSOR ${ARCH})
set(BUILD_SHARED_LIBS OFF)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
# Don't inherit compiler flags from the environment
foreach(var CFLAGS CXXFLAGS)
if(DEFINED ENV{${var}})
message(WARNING "The environment variable '${var}' was set to $ENV{${var}},
but Zephyr ignores flags from the environment. Use 'cmake -DEXTRA_${var}=$ENV{${var}}' instead.")
unset(ENV{${var}})
endif()
endforeach()
# Until we completely deprecate it
if(NOT DEFINED ENV{ZEPHYR_TOOLCHAIN_VARIANT})
if(DEFINED ENV{ZEPHYR_GCC_VARIANT})
message(WARNING "ZEPHYR_GCC_VARIANT is deprecated, please use ZEPHYR_TOOLCHAIN_VARIANT instead")
set(ZEPHYR_TOOLCHAIN_VARIANT $ENV{ZEPHYR_GCC_VARIANT})
endif()
endif()
if(NOT ZEPHYR_TOOLCHAIN_VARIANT)
if(DEFINED ENV{ZEPHYR_TOOLCHAIN_VARIANT})
set(ZEPHYR_TOOLCHAIN_VARIANT $ENV{ZEPHYR_TOOLCHAIN_VARIANT})
elseif(CROSS_COMPILE OR CONFIG_CROSS_COMPILE OR (DEFINED ENV{CROSS_COMPILE}))
set(ZEPHYR_TOOLCHAIN_VARIANT cross-compile)
endif()
endif()
# Until we completely deprecate it
if(${ZEPHYR_TOOLCHAIN_VARIANT} STREQUAL "gccarmemb")
message(WARNING "gccarmemb is deprecated, please use gnuarmemb instead")
set(ZEPHYR_TOOLCHAIN_VARIANT "gnuarmemb")
endif()
set(ZEPHYR_TOOLCHAIN_VARIANT ${ZEPHYR_TOOLCHAIN_VARIANT} CACHE STRING "Zephyr toolchain variant")
assert(ZEPHYR_TOOLCHAIN_VARIANT "Zephyr toolchain variant invalid: please set the ZEPHYR_TOOLCHAIN_VARIANT-variable")
if(CONFIG_ARCH_POSIX OR (ZEPHYR_TOOLCHAIN_VARIANT STREQUAL "host"))
set(COMPILER host-gcc)
endif()
# Configure the toolchain based on what SDK/toolchain is in use.
if(NOT (COMPILER STREQUAL "host-gcc"))
include(${ZEPHYR_BASE}/cmake/toolchain/${ZEPHYR_TOOLCHAIN_VARIANT}.cmake)
endif()
# Configure the toolchain based on what toolchain technology is used
# (gcc, host-gcc etc.)
include(${ZEPHYR_BASE}/cmake/compiler/${COMPILER}.cmake OPTIONAL)
# Uniquely identify the toolchain wrt. it's capabilities.
#
# What we are looking for, is a signature definition that is defined
# like this:
# Toolchains with the same signature will always support the same set
# of flags.
# It is not clear how this signature should be constructed. The
# strategy chosen is to md5sum the CC binary.
file(MD5 ${CMAKE_C_COMPILER} CMAKE_C_COMPILER_MD5_SUM)
set(TOOLCHAIN_SIGNATURE ${CMAKE_C_COMPILER_MD5_SUM})