mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2026-09-12 01:06:53 +08:00
5443602d89
Release 13.4 of the CUDA Samples supported by CUDA Toolkit 13.4. See Changelog for more information.
85 lines
3.9 KiB
CMake
85 lines
3.9 KiB
CMake
set(CMAKE_SYSTEM_NAME QNX)
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set(CMAKE_SYSTEM_PROCESSOR aarch64)
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# Need to set the QNX_HOST and QNX_TARGET environment variables
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set(QNX_HOST $ENV{QNX_HOST})
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set(QNX_TARGET $ENV{QNX_TARGET})
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message(STATUS "QNX_HOST = ${QNX_HOST}")
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message(STATUS "QNX_TARGET = ${QNX_TARGET}")
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find_program(QNX_QCC NAMES qcc PATHS "${QNX_HOST}/usr/bin")
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find_program(QNX_QPLUS NAMES q++ PATHS "${QNX_HOST}/usr/bin")
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if(NOT QNX_QCC OR NOT QNX_QPLUS)
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message(FATAL_ERROR "Could not find qcc or q++ in QNX_HOST=${QNX_HOST}/usr/bin")
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endif()
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# Specify the cross-compilers
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set(CMAKE_C_COMPILER ${QNX_QCC})
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set(CMAKE_CXX_COMPILER ${QNX_QPLUS})
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set(CMAKE_C_COMPILER_TARGET aarch64)
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set(CMAKE_CXX_COMPILER_TARGET aarch64)
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# Set compiler flags
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set(CMAKE_CUDA_HOST_COMPILER ${CMAKE_CXX_COMPILER} CACHE STRING "" FORCE)
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set(CMAKE_CUDA_COMPILER_ID_TEST_FLAGS_FIRST "-nodlink -L${CUDA_ROOT}/lib64 -L${CUDA_ROOT}/lib -I${CUDA_ROOT}/include")
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set(CMAKE_C_FLAGS " \"-V${__qnx_gcc_ver},gcc_ntoaarch64le\"")
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set(CMAKE_CXX_FLAGS " \"-V${__qnx_gcc_ver},gcc_ntoaarch64le\"")
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set(CMAKE_CUDA_FLAGS " --qpp-config=${__qnx_gcc_ver},gcc_ntoaarch64le")
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set(AUTOMAGIC_NVCC_FLAGS --qpp-config=${__qnx_gcc_ver},gcc_ntoaarch64le CACHE STRING "automagic feature detection flags for cross build")
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add_link_options("-V${__qnx_gcc_ver},gcc_ntoaarch64le")
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set(CROSS_COMPILE_FOR_QNX ON CACHE BOOL "Cross compiling for QNX platforms")
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string(APPEND CMAKE_CXX_FLAGS " -D_QNX_SOURCE")
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string(APPEND CMAKE_CUDA_FLAGS " -D_QNX_SOURCE")
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# cudaNvSci needs NvSci headers/libs from the QNX rootfs; point TARGET_FS at it. This pre-seeds
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# FindNVSCI's cache vars and auto-detects the header/lib dirs across rootfs layouts.
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if(DEFINED TARGET_FS)
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# Expand a leading ~ so paths reach the linker absolute.
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if(TARGET_FS MATCHES "^~")
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string(REGEX REPLACE "^~" "$ENV{HOME}" TARGET_FS "${TARGET_FS}")
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endif()
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get_filename_component(_nvsci_sdk_root "${TARGET_FS}" DIRECTORY)
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# Header dir varies by rootfs layout. Both headers are required, so accept a dir only if it
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# holds both.
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foreach(_inc "${TARGET_FS}/include" "${_nvsci_sdk_root}/include" "${TARGET_FS}/usr/include")
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if(NOT _nvsci_inc AND EXISTS "${_inc}/nvscibuf.h" AND EXISTS "${_inc}/nvscisync.h")
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set(_nvsci_inc "${_inc}")
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endif()
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endforeach()
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# Lib dir varies by rootfs layout. FindNVSCI needs both libraries, so accept a dir only if it
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# holds both.
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foreach(_lib "${TARGET_FS}/lib-target" "${TARGET_FS}/usr/libnvidia" "${TARGET_FS}/usr/lib")
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if(NOT _nvsci_lib AND EXISTS "${_lib}/libnvscibuf.so" AND EXISTS "${_lib}/libnvscisync.so")
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set(_nvsci_lib "${_lib}")
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endif()
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endforeach()
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# A rootfs without NvSci is not an error: FindNVSCI then reports NvSci as missing and only the
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# NvSci samples are skipped.
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if(_nvsci_inc AND _nvsci_lib)
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set(NVSCIBUF_INCLUDE_DIR "${_nvsci_inc}" CACHE PATH "NvSciBuf headers")
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set(NVSCISYNC_INCLUDE_DIR "${_nvsci_inc}" CACHE PATH "NvSciSync headers")
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set(NVSCIBUF_LIBRARY "${_nvsci_lib}/libnvscibuf.so" CACHE FILEPATH "NvSciBuf library")
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set(NVSCISYNC_LIBRARY "${_nvsci_lib}/libnvscisync.so" CACHE FILEPATH "NvSciSync library")
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# rpath-link the rootfs lib dirs so NvSci's transitive deps resolve at link time.
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# NvSci pulls in NvRm/NvOs/NvSciIpc, which can sit in a lib dir of their own.
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foreach(_dir "${_nvsci_lib}" "${TARGET_FS}/lib-target" "${_nvsci_sdk_root}/lib-target"
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"${TARGET_FS}/usr/libnvidia" "${TARGET_FS}/usr/lib")
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if(IS_DIRECTORY "${_dir}")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath-link,${_dir}")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-rpath-link,${_dir}")
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endif()
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endforeach()
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else()
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message(STATUS "NvSci headers/libs not found in TARGET_FS='${TARGET_FS}'")
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endif()
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endif()
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