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69 lines
3.3 KiB
69 lines
3.3 KiB
4 months ago
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#
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# CMake Toolchain file for crosscompiling on Mediatek Linkit 7967
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#
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# This can be used like this (with Linkit sdk unpacked to /projects/linkit/sdk)
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#
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# cd build/
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# cmake .. -DCMAKE_INSTALL_PREFIX:PATH=/projects/linkit/cross-root \
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# -DCMAKE_TOOLCHAIN_FILE=../contrib/cross-linkit.cmake \
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# -DLWS_PLAT_FREERTOS=1 \
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# -DLWS_WITH_ZLIB=0 \
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# -DLWS_WITHOUT_EXTENSIONS=1 \
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# -DLWS_WITH_ZIP_FOPS=0 \
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# -DLWS_WITH_HTTP_STREAM_COMPRESSION=0 \
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# -DLWS_WITH_MBEDTLS=1 \
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# -DLWS_WITH_FILE_OPS=0
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#
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# if your sdk lives somewhere else, this is the only place that should need changing
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set(CROSS_BASE /projects/linkit/sdk)
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set(CROSS_PATH ${CROSS_BASE}/tools/gcc/gcc-arm-none-eabi)
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#
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# Target operating system name.
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set(CMAKE_SYSTEM_NAME Generic)
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# Name of C compiler.
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set(CMAKE_C_COMPILER "${CROSS_PATH}/bin/arm-none-eabi-gcc")
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set(CMAKE_CXX_COMPILER "${CROSS_PATH}/bin/arm-none-eabi-g++")
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#
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# cmake believes we should link a NOP test program OK, but since we're
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# baremetal, that's not true in our case. It tries to build this test
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# with the cross compiler, but with no args on it, and it fails.
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# So disable this test for this toolchain (we'll find out soon enough
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# if we actually can't compile anything)
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set(CMAKE_C_COMPILER_WORKS 1)
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set(CMAKE_CXX_COMPILER_WORKS 1)
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#
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# Different build system distros set release optimization level to different
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# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3
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# here. Actually the build system's local policy is completely unrelated to
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# our desire for cross-build release optimization policy for code built to run
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# on a completely different target than the build system itself.
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#
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# Since this goes last on the compiler commandline we have to override it to a
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# sane value for cross-build here. Notice some gcc versions enable broken
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# optimizations with -O3.
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#
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if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
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endif()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostartfiles -I${CROSS_BASE}/middleware/third_party/lwip/src/include/lwip -I${CROSS_BASE}/middleware/third_party/lwip/src/include -I${CROSS_BASE}/project/mt7687_hdk/apps/httpd/inc/ -I${CROSS_BASE}/kernel/service/inc/ -I${CROSS_BASE}/driver/chip/inc -I${CROSS_BASE}/driver/chip/mt7687/inc/ -I${CROSS_BASE}/driver/CMSIS/Device/MTK/mt7687/Include/ -I${CROSS_BASE}/driver/CMSIS/Include -I${CROSS_BASE}/middleware/third_party/lwip/ports/include/ -I${CROSS_BASE}/middleware/third_party/lwip/src/include/posix/ -I${CROSS_BASE}/kernel/rtos/FreeRTOS/Source/include/ -I${CROSS_BASE}/middleware/third_party/mbedtls/include/ -I${CROSS_BASE}/kernel/rtos/FreeRTOS/Source/portable/GCC/ARM_CM4F/ -I${CROSS_BASE}/middleware/third_party/sntp/inc/ -DLWS_AMAZON_RTOS=1" CACHE STRING "" FORCE)
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# Where to look for the target environment. (More paths can be added here)
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set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}")
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# Adjust the default behavior of the FIND_XXX() commands:
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# search programs in the host environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# Search headers and libraries in the target environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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