e97d33d0c8
On very early stage build system needs to get access to DTC preprocessor. MWDT has no it's own preprocessor, so here zephyr-SDK preprocessor is used. On latest build stages zephyr-SDK objcoby also required as MWDT binutils don't support all features. This at the same time requires that ZEPHYR_SDK_INSTALL_DIR must be initialized with valid arch-dependent prefix. Zephyr-SDK requires ARCH variable to be initialized before include "generic.cmake", but in hew HWMv2 model ARCH variable will be initialized more later. This workaround uses any (first awailable, independent on ARCH) toolchain from SDK for DTC preprocessing only. For other build stages ARCMWDT will be used. Signed-off-by: Nikolay Agishev <agishev@synopsys.com>
54 lines
2.3 KiB
CMake
54 lines
2.3 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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zephyr_get(ARCMWDT_TOOLCHAIN_PATH)
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set(METAWARE_ROOT $ENV{METAWARE_ROOT})
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if(NOT DEFINED ARCMWDT_TOOLCHAIN_PATH AND DEFINED METAWARE_ROOT)
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message(STATUS "ARCMWDT_TOOLCHAIN_PATH is not set, use default toolchain from METAWARE_ROOT: '${METAWARE_ROOT}'")
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if(NOT EXISTS ${METAWARE_ROOT})
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message(FATAL_ERROR "Nothing found at METAWARE_ROOT: '${METAWARE_ROOT}'")
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endif()
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cmake_path(GET METAWARE_ROOT PARENT_PATH ARCMWDT_TOOLCHAIN_PATH)
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elseif(NOT DEFINED ARCMWDT_TOOLCHAIN_PATH AND NOT DEFINED METAWARE_ROOT)
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message(FATAL_ERROR "No MWDT toolchain specified: neither ARCMWDT_TOOLCHAIN_PATH nor METAWARE_ROOT defined")
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endif()
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if(NOT EXISTS ${ARCMWDT_TOOLCHAIN_PATH})
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message(FATAL_ERROR "Nothing found at ARCMWDT_TOOLCHAIN_PATH: '${ARCMWDT_TOOLCHAIN_PATH}'")
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endif()
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# arcmwdt relies on Zephyr SDK for the use of C preprocessor (devicetree) and objcopy
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find_package(Zephyr-sdk 0.15 REQUIRED)
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# Handling to be improved in Zephyr SDK, we can drop setting TOOLCHAIN_HOME after
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# https://github.com/zephyrproject-rtos/sdk-ng/pull/682 got merged and we switch to proper SDK
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# version.
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set(TOOLCHAIN_HOME ${ZEPHYR_SDK_INSTALL_DIR})
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# On very early stage build system needs to get access to DTC preprocessor.
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# MWDT has no it's own preprocessor, so here zephyr-SDK preprocessor is used.
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# At the same time zephyr-SDK requires ARCH variable to be initialized before include "generic.cmake",
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# but in hew HWMv2 model ARCH variable will be initialized more later.
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# This workaround uses any (first awailable, independent on ARCH) toolchain from SDK for DTC preprocessing only.
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# For other build stages ARCMWDT will be used.
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include(${ZEPHYR_SDK_INSTALL_DIR}/cmake/zephyr/generic.cmake)
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unset(TOOLCHAIN_HAS_NEWLIB CACHE)
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unset(TOOLCHAIN_HAS_PICOLIBC CACHE)
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set(ZEPHYR_SDK_CROSS_COMPILE ${CROSS_COMPILE})
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# Handling to be improved in Zephyr SDK, to avoid overriding ZEPHYR_TOOLCHAIN_VARIANT by
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# find_package(Zephyr-sdk) if it's already set
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set(ZEPHYR_TOOLCHAIN_VARIANT arcmwdt)
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set(TOOLCHAIN_HOME ${ARCMWDT_TOOLCHAIN_PATH}/MetaWare)
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set(COMPILER arcmwdt)
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set(LINKER arcmwdt)
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set(BINTOOLS arcmwdt)
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set(SYSROOT_TARGET arc)
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set(CROSS_COMPILE ${TOOLCHAIN_HOME}/arc/bin/)
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set(SYSROOT_DIR ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})
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set(TOOLCHAIN_HAS_NEWLIB OFF CACHE BOOL "True if toolchain supports newlib")
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