Liu Yiqun
8 years ago
parent
af80ff94a5
commit
c914f63676
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This is a toolchain file for cross-compiling for Raspberry Pi.
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# The supported variables are listed belows:
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#
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# RPI_TOOLCHAIN
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# RPI_ARM_NEON
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#
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# Also you can set CMAKE_C/CXX_COMPILER yourself, through cmake arguments.
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IF(NOT RPI)
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return()
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ENDIF()
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SET(CMAKE_SYSTEM_NAME Linux)
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SET(CMAKE_SYSTEM_VERSION 1)
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SET(CMAKE_SYSTEM_PROCESSOR arm)
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# check the exist of raspberry pi toolchain
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IF(NOT DEFINED RPI_TOOLCHAIN)
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SET(RPI_TOOLCHAIN $ENV{RPI_TOOLCHAIN}
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CACHE PATH "Folder holds the toolchain of Raspberr Pi")
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ENDIF()
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IF(NOT RPI_TOOLCHAIN)
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MESSAGE(WARNING "It is recommended to set RPI_TOOLCHAIN to use toolchain.\n"
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"To cross-compile for Raspberry Pi, you need to download the tools using:\n"
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" git clone https://github.com/raspberrypi/tools\n")
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ENDIF()
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IF(NOT DEFINED RPI_ARM_NEON)
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SET(RPI_ARM_NEON ON)
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ENDIF()
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IF(RPI_TOOLCHAIN)
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SET(RPI_TOOLCHAIN_ROOT ${RPI_TOOLCHAIN})
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IF(RPI_TOOLCHAIN_ROOT MATCHES "gcc-linaro-arm-linux-gnueabihf-raspbian(-x64)?$")
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# gcc-linaro-arm-linux-gnueabihf-raspbian
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# gcc-linaro-arm-linux-gnueabihf-raspbian-x64
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SET(RPI_TOOLCHAIN_NAME arm-linux-gnueabihf)
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ENDIF()
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SET(RPI_TOOLCHAIN_PREFIX "${RPI_TOOLCHAIN_ROOT}/bin/${RPI_TOOLCHAIN_NAME}-")
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ENDIF()
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# C compiler
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IF(NOT CMAKE_C_COMPILER)
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SET(RPI_C_COMPILER "${RPI_TOOLCHAIN_PREFIX}gcc")
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ELSE()
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GET_FILENAME_COMPONENT(RPI_C_COMPILER ${CMAKE_C_COMPILER} PROGRAM)
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ENDIF()
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IF(NOT EXISTS ${RPI_C_COMPILER})
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MESSAGE(FATAL_ERROR "Cannot find C compiler: ${RPI_C_COMPILER}")
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ENDIF()
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# CXX compiler
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IF(NOT CMAKE_CXX_COMPILER)
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SET(RPI_CXX_COMPILER "${RPI_TOOLCHAIN_PREFIX}g++")
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ELSE()
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GET_FILENAME_COMPONENT(RPI_CXX_COMPILER ${CMAKE_CXX_COMPILER} PROGRAM)
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ENDIF()
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IF(NOT EXISTS ${RPI_CXX_COMPILER})
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MESSAGE(FATAL_ERROR "Cannot find CXX compiler: ${RPI_CXX_COMPILER}")
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ENDIF()
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# Fortran compiler
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IF(NOT CMAKE_Fortran_COMPILER)
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SET(RPI_Fortran_COMPILER "${RPI_TOOLCHAIN_PREFIX}gfortran")
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ELSE()
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GET_FILENAME_COMPONENT(RPI_Fortran_COMPILER ${CMAKE_Fortran_COMPILER} PROGRAM)
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ENDIF()
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IF(NOT EXISTS RPI_Fortran_COMPILER)
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SET(RPI_Fortran_COMPILER "")
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ENDIF()
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SET(CMAKE_C_COMPILER ${RPI_C_COMPILER} CACHE PATH "C compiler" FORCE)
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SET(CMAKE_CXX_COMPILER ${RPI_CXX_COMPILER} CACHE PATH "CXX compiler" FORCE)
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SET(CMAKE_Fortran_COMPILER ${RPI_Fortran_COMPILER} CACHE PATH "Fortran compiler" FORCE)
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IF(RPI_ARM_NEON)
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SET(RPI_C_FLAGS "${RPI_C_FLAGS} -mfpu=neon")
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ENDIF()
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SET(CMAKE_C_FLAGS "${RPI_C_FLAGS} ${CMAKE_C_FLAGS}" CACHE STRING "C flags")
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SET(CMAKE_CXX_FLAGS "${RPI_C_FLAGS} ${CMAKE_CXX_FLAGS}" CACHE STRING "CXX flags")
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