mirror of
https://github.com/polhenarejos/pico-rng.git
synced 2026-04-09 17:25:51 +02:00
49 lines
1.5 KiB
CMake
49 lines
1.5 KiB
CMake
cmake_minimum_required(VERSION 3.13)
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project(pico_rng_driver LANGUAGES C)
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_CXX_STANDARD 17)
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# Find kernel headers
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execute_process(
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COMMAND uname -r
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OUTPUT_VARIABLE KERNEL_RELEASE
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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# Find the headers
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find_path(KERNELHEADERS_DIR
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include/linux/user.h
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PATHS /usr/src/linux-headers-${KERNEL_RELEASE}
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)
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message(STATUS "Kernel release: ${KERNEL_RELEASE}")
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message(STATUS "Kernel headers: ${KERNELHEADERS_DIR}")
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if (KERNELHEADERS_DIR)
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set(KERNELHEADERS_INCLUDE_DIRS
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${KERNELHEADERS_DIR}/include
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${KERNELHEADERS_DIR}/arch/x86/include
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CACHE PATH "Kernel headers include dirs"
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)
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set(KERNELHEADERS_FOUND 1 CACHE STRING "Set to 1 if kernel headers were found")
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else (KERNELHEADERS_DIR)
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set(KERNELHEADERS_FOUND 0 CACHE STRING "Set to 1 if kernel headers were found")
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endif (KERNELHEADERS_DIR)
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mark_as_advanced(KERNELHEADERS_FOUND)
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include_directories(${KERNELHEADERS_INCLUDE_DIRS})
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set(DRIVER_FILE pico_rng.ko)
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set(KBUILD_CMD $(MAKE) -C ${KERNELHEADERS_DIR} modules M=${CMAKE_CURRENT_BINARY_DIR} src=${CMAKE_CURRENT_SOURCE_DIR})
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#FILE(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/Kbuild "obj-m := pico_rng.o")
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add_custom_command(OUTPUT ${DRIVER_FILE}
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COMMAND ${KBUILD_CMD}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS pico_rng.c VERBATIM)
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add_custom_target(pico_rng_driver ALL DEPENDS ${DRIVER_FILE})
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