12f8f76165
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>
44 lines
1.4 KiB
CMake
44 lines
1.4 KiB
CMake
# NB: Depends on host-tools.cmake having been executed already
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# Ensures toolchain-gcc.cmake is run
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set(COMPILER gcc)
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# TODO fetch from environment
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# These defaults work for some targets like RISC-V
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set(CROSS_COMPILE_TARGET ${ARCH}-${TOOLCHAIN_VENDOR}-elf)
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set(SYSROOT_TARGET ${ARCH}-${TOOLCHAIN_VENDOR}-elf)
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if("${ARCH}" STREQUAL "arm")
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set(CROSS_COMPILE_TARGET arm-${TOOLCHAIN_VENDOR}-eabi)
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set(SYSROOT_TARGET armv5-${TOOLCHAIN_VENDOR}-eabi)
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elseif(CONFIG_TOOLCHAIN_VARIANT STREQUAL "iamcu")
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set(CROSS_COMPILE_TARGET i586-${TOOLCHAIN_VENDOR}-elfiamcu)
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set(SYSROOT_TARGET iamcu-${TOOLCHAIN_VENDOR}-elfiamcu)
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elseif("${ARCH}" STREQUAL "x86")
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set(CROSS_COMPILE_TARGET i586-${TOOLCHAIN_VENDOR}-elf)
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set(SYSROOT_TARGET i586-${TOOLCHAIN_VENDOR}-elf)
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elseif("${ARCH}" STREQUAL "xtensa")
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set(SYSROOT_DIR ${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${SYSROOT_TARGET}/usr)
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set(TOOLCHAIN_INCLUDES
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${SYSROOT_DIR}/include/arch/include
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${SYSROOT_DIR}/include
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)
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LIST(APPEND TOOLCHAIN_LIBS hal)
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LIST(APPEND LIB_INCLUDE_DIR -L${SYSROOT_DIR}/lib)
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elseif("${ARCH}" STREQUAL "arc")
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# https://github.com/zephyrproject-rtos/zephyr/issues/3797
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# -Os is broken on arc
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set(OPTIMIZE_FOR_SIZE_FLAG "-O2")
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endif()
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set(CROSS_COMPILE ${TOOLCHAIN_HOME}/usr/bin/${CROSS_COMPILE_TARGET}/${CROSS_COMPILE_TARGET}-)
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set(SYSROOT_DIR ${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${SYSROOT_TARGET}/usr)
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list(APPEND TOOLCHAIN_C_FLAGS --sysroot ${SYSROOT_DIR})
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