45 lines
2.3 KiB
CMake
45 lines
2.3 KiB
CMake
# This file adds the necessary configurations to cross compile
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# mlpack for embedded systems. You need to set the following variables
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# from the command line: CMAKE_SYSROOT and TOOLCHAIN_PREFIX.
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# This file will compile OpenBLAS if it is downloaded and it is not
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# available on your system in order to find the BLAS library. If OpenBLAS will
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# be compiled, the OPENBLAS_TARGET variable must be set. This can be done
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# by, e.g., setting BOARD_NAME (which will set OPENBLAS_TARGET in
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# `board/flags-config.cmake`).
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if (CMAKE_CROSSCOMPILING)
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include(board/flags-config.cmake)
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if (NOT CMAKE_SYSROOT AND (NOT TOOLCHAIN_PREFIX))
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message(FATAL_ERROR "Neither CMAKE_SYSROOT nor TOOLCHAIN_PREFIX are set; please set both of them and try again.")
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elseif(NOT CMAKE_SYSROOT)
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message(FATAL_ERROR "Cannot configure: CMAKE_SYSROOT must be set when performing cross-compiling!")
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elseif(NOT TOOLCHAIN_PREFIX)
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message(FATAL_ERROR "Cannot configure: TOOLCHAIN_PREFIX must be set when performing cross-compiling!")
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endif()
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endif()
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macro(search_openblas version)
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set(BLA_STATIC ON)
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find_package(BLAS)
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if (NOT BLAS_FOUND OR (NOT BLAS_LIBRARIES))
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if(NOT OPENBLAS_TARGET)
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message(FATAL_ERROR "Cannot compile OpenBLAS: OPENBLAS_TARGET is not set. Either set that variable, or set BOARD_NAME correctly!")
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endif()
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get_deps(https://github.com/xianyi/OpenBLAS/releases/download/v${version}/OpenBLAS-${version}.tar.gz OpenBLAS OpenBLAS-${version}.tar.gz)
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if (NOT MSVC)
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if (NOT EXISTS "${CMAKE_BINARY_DIR}/deps/OpenBLAS-${version}/libopenblas.a")
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execute_process(COMMAND make TARGET=${OPENBLAS_TARGET} BINARY=${OPENBLAS_BINARY} HOSTCC=gcc CC=${CMAKE_C_COMPILER} FC=${CMAKE_FORTRAN_COMPILER} NO_SHARED=1
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/deps/OpenBLAS-${version})
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endif()
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file(GLOB OPENBLAS_LIBRARIES "${CMAKE_BINARY_DIR}/deps/OpenBLAS-${version}/libopenblas.a")
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set(BLAS_openblas_LIBRARY ${OPENBLAS_LIBRARIES})
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set(LAPACK_openblas_LIBRARY ${OPENBLAS_LIBRARIES})
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set(BLA_VENDOR OpenBLAS)
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set(BLAS_FOUND ON)
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endif()
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endif()
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find_library(GFORTRAN NAMES libgfortran.a)
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find_library(PTHREAD NAMES libpthread.a)
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set(COMPILER_SUPPORT_LIBRARIES ${COMPILER_SUPPORT_LIBRARIES} ${GFORTRAN} ${PTHREAD})
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endmacro()
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