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zephyr/cmake/toolchain/zephyr.cmake

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CMake
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Introduce cmake-based rewrite of KBuild Introducing CMake is an important step in a larger effort to make Zephyr easy to use for application developers working on different platforms with different development environment needs. Simplified, this change retains Kconfig as-is, and replaces all Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild offers is replaced by a set of CMake extentions. These extentions have either provided simple one-to-one translations of KBuild features or introduced new concepts that replace KBuild concepts. This is a breaking change for existing test infrastructure and build scripts that are maintained out-of-tree. But for FW itself, no porting should be necessary. For users that just want to continue their work with minimal disruption the following should suffice: Install CMake 3.8.2+ Port any out-of-tree Makefiles to CMake. Learn the absolute minimum about the new command line interface: $ cd samples/hello_world $ mkdir build && cd build $ cmake -DBOARD=nrf52_pca10040 .. $ cd build $ make PR: zephyrproject-rtos#4692 docs: http://docs.zephyrproject.org/getting_started/getting_started.html Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
2017-10-27 21:43:34 +08:00
# NB: Depends on host-tools.cmake having been executed already
# Ensures toolchain-gcc.cmake is run
set(COMPILER gcc)
# TODO fetch from environment
# These defaults work for some targets like RISC-V
set(CROSS_COMPILE_TARGET ${ARCH}-${TOOLCHAIN_VENDOR}-elf)
set(SYSROOT_TARGET ${ARCH}-${TOOLCHAIN_VENDOR}-elf)
if("${ARCH}" STREQUAL "arm")
set(CROSS_COMPILE_TARGET arm-${TOOLCHAIN_VENDOR}-eabi)
set(SYSROOT_TARGET armv5-${TOOLCHAIN_VENDOR}-eabi)
elseif("${ARCH}" STREQUAL "x86")
kconfig: Drop support for CONFIG_TOOLCHAIN_VARIANT The Kconfig option TOOLCHAIN_VARIANT (not to be confused with ZEPHYR_TOOLCHAIN_VARIANT) is a legacy configuration option that has very few use-cases and can easily be dropped. It's functionality is easily covered by CONFIG_X86_IAMCU and ZEPHYR_TOOLCHAIN_VARIANT. This commit removes all references of it from Zephyr. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-04-30 23:04:44 +08:00
if(CONFIG_X86_IAMCU)
set(CROSS_COMPILE_TARGET i586-${TOOLCHAIN_VENDOR}-elfiamcu)
set(SYSROOT_TARGET iamcu-${TOOLCHAIN_VENDOR}-elfiamcu)
else()
set(CROSS_COMPILE_TARGET i586-${TOOLCHAIN_VENDOR}-elf)
set(SYSROOT_TARGET i586-${TOOLCHAIN_VENDOR}-elf)
endif()
Introduce cmake-based rewrite of KBuild Introducing CMake is an important step in a larger effort to make Zephyr easy to use for application developers working on different platforms with different development environment needs. Simplified, this change retains Kconfig as-is, and replaces all Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild offers is replaced by a set of CMake extentions. These extentions have either provided simple one-to-one translations of KBuild features or introduced new concepts that replace KBuild concepts. This is a breaking change for existing test infrastructure and build scripts that are maintained out-of-tree. But for FW itself, no porting should be necessary. For users that just want to continue their work with minimal disruption the following should suffice: Install CMake 3.8.2+ Port any out-of-tree Makefiles to CMake. Learn the absolute minimum about the new command line interface: $ cd samples/hello_world $ mkdir build && cd build $ cmake -DBOARD=nrf52_pca10040 .. $ cd build $ make PR: zephyrproject-rtos#4692 docs: http://docs.zephyrproject.org/getting_started/getting_started.html Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
2017-10-27 21:43:34 +08:00
elseif("${ARCH}" STREQUAL "xtensa")
set(SYSROOT_DIR ${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${SYSROOT_TARGET}/usr)
set(TOOLCHAIN_INCLUDES
${SYSROOT_DIR}/include/arch/include
${SYSROOT_DIR}/include
)
LIST(APPEND TOOLCHAIN_LIBS hal)
LIST(APPEND LIB_INCLUDE_DIR -L${SYSROOT_DIR}/lib)
endif()
set(CROSS_COMPILE ${TOOLCHAIN_HOME}/usr/bin/${CROSS_COMPILE_TARGET}/${CROSS_COMPILE_TARGET}-)
set(SYSROOT_DIR ${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${SYSROOT_TARGET}/usr)
list(APPEND TOOLCHAIN_C_FLAGS --sysroot ${SYSROOT_DIR})