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Fangjun Kuang
Committed by GitHub
ee37d9bd 1 parent 67acd34d

Support RISC-V (#609)

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正在显示 7 个修改的文件 包含 437 行增加 和 1 行删除
  1 +name: riscv64-linux
  2 +
  3 +on:
  4 + push:
  5 + branches:
  6 + - master
  7 + paths:
  8 + - '.github/workflows/riscv64-linux.yaml'
  9 + - 'CMakeLists.txt'
  10 + - 'cmake/**'
  11 + - 'sherpa-onnx/csrc/*'
  12 + - 'toolchains/riscv64-linux-gnu.toolchain.cmake'
  13 + - 'build-riscv64-linux-gnu.sh'
  14 + tags:
  15 + - '*'
  16 + pull_request:
  17 + branches:
  18 + - master
  19 + paths:
  20 + - '.github/workflows/riscv64-linux.yaml'
  21 + - 'CMakeLists.txt'
  22 + - 'cmake/**'
  23 + - 'sherpa-onnx/csrc/*'
  24 + - 'toolchains/riscv64-linux-gnu.toolchain.cmake'
  25 + - 'build-riscv64-linux-gnu.sh'
  26 +
  27 + workflow_dispatch:
  28 +
  29 +concurrency:
  30 + group: riscv64-linux-${{ github.ref }}
  31 + cancel-in-progress: true
  32 +
  33 +jobs:
  34 + riscv64_linux:
  35 + runs-on: ${{ matrix.os }}
  36 + name: ${{ matrix.os }} ${{ matrix.lib_type }}
  37 + strategy:
  38 + fail-fast: false
  39 + matrix:
  40 + os: [ubuntu-latest]
  41 + lib_type: [static, shared]
  42 +
  43 + steps:
  44 + - uses: actions/checkout@v4
  45 + with:
  46 + fetch-depth: 0
  47 +
  48 + - name: ccache
  49 + uses: hendrikmuhs/ccache-action@v1.2
  50 + with:
  51 + key: ${{ matrix.os }}-riscv64-${{ matrix.lib_type }}
  52 +
  53 + - name: cache-qemu
  54 + id: cache-qemu
  55 + uses: actions/cache@v4
  56 + with:
  57 + path: qemu-install
  58 + key: qemu-riscv-install-20240225
  59 +
  60 + - name: install-qemu-build-deps
  61 + if: steps.cache-qemu.outputs.cache-hit != 'true'
  62 + run: |
  63 + sudo apt-get update
  64 + sudo apt-get install autoconf automake autotools-dev ninja-build
  65 +
  66 + - name: checkout-qemu
  67 + if: steps.cache-qemu.outputs.cache-hit != 'true'
  68 + uses: actions/checkout@v3
  69 + with:
  70 + repository: qemu/qemu
  71 + path: qemu
  72 +
  73 + - name: qemu
  74 + if: steps.cache-qemu.outputs.cache-hit != 'true'
  75 + run: |
  76 + cd qemu
  77 + ./configure --prefix=$GITHUB_WORKSPACE/qemu-install --target-list=riscv64-linux-user --disable-system
  78 + make -j2
  79 + make install
  80 + ls -lh $GITHUB_WORKSPACE/qemu-install
  81 + ls -lh $GITHUB_WORKSPACE/qemu-install/bin
  82 +
  83 + - name: cache-toolchain
  84 + id: cache-toolchain
  85 + uses: actions/cache@v4
  86 + with:
  87 + path: toolchain
  88 + key: riscv64-glibc-ubuntu-20.04-gcc-nightly-2023.10.17-nightly
  89 +
  90 + - name: Download toolchain
  91 + if: steps.cache-toolchain.outputs.cache-hit != 'true'
  92 + shell: bash
  93 + run: |
  94 + mkdir $GITHUB_WORKSPACE/toolchain
  95 + wget -q https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2023.10.17/riscv64-glibc-ubuntu-20.04-gcc-nightly-2023.10.17-nightly.tar.gz
  96 + tar xvf ./riscv64-glibc-ubuntu-20.04-gcc-nightly-2023.10.17-nightly.tar.gz --strip-components 1 -C $GITHUB_WORKSPACE/toolchain
  97 +
  98 + - name: Display toolchain info
  99 + shell: bash
  100 + run: |
  101 + export PATH=$GITHUB_WORKSPACE/toolchain/bin:$PATH
  102 + riscv64-unknown-linux-gnu-gcc --version
  103 +
  104 + - name: Display qemu-riscv64 -h
  105 + shell: bash
  106 + run: |
  107 + export PATH=$GITHUB_WORKSPACE/qemu-install/bin:$PATH
  108 + export QEMU_LD_PREFIX=$GITHUB_WORKSPACE/toolchain/sysroot
  109 + qemu-riscv64 -h
  110 +
  111 + - name: build riscv64-linux
  112 + shell: bash
  113 + run: |
  114 + export PATH=$GITHUB_WORKSPACE/toolchain/bin:$PATH
  115 +
  116 + export CMAKE_CXX_COMPILER_LAUNCHER=ccache
  117 + export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
  118 +
  119 + cmake --version
  120 +
  121 + lib_type=${{ matrix.lib_type }}
  122 +
  123 + if [[ $lib_type == "shared" ]]; then
  124 + export BUILD_SHARED_LIBS=ON
  125 + else
  126 + export BUILD_SHARED_LIBS=OFF
  127 + fi
  128 +
  129 + ./build-riscv64-linux-gnu.sh
  130 +
  131 + ls -lh build-riscv64-linux-gnu/bin
  132 + ls -lh build-riscv64-linux-gnu/lib
  133 +
  134 + file build-riscv64-linux-gnu/bin/sherpa-onnx
  135 +
  136 + - name: Test sherpa-onnx
  137 + shell: bash
  138 + run: |
  139 + export PATH=$GITHUB_WORKSPACE/toolchain/bin:$PATH
  140 + export PATH=$GITHUB_WORKSPACE/qemu-install/bin:$PATH
  141 + export QEMU_LD_PREFIX=$GITHUB_WORKSPACE/toolchain/sysroot
  142 +
  143 + ls -lh ./build-riscv64-linux-gnu/bin
  144 +
  145 + echo "----------sherpa-onnx----------"
  146 + qemu-riscv64 ./build-riscv64-linux-gnu/bin/sherpa-onnx --help
  147 + readelf -d ./build-riscv64-linux-gnu/bin/sherpa-onnx
  148 +
  149 + echo "----------sherpa-onnx-offline----------"
  150 + qemu-riscv64 ./build-riscv64-linux-gnu/bin/sherpa-onnx-offline --help
  151 + readelf -d ./build-riscv64-linux-gnu/bin/sherpa-onnx-offline
  152 +
  153 + echo "----------sherpa-onnx-offline-tts----------"
  154 + qemu-riscv64 ./build-riscv64-linux-gnu/bin/sherpa-onnx-offline-tts --help
  155 + readelf -d ./build-riscv64-linux-gnu/bin/sherpa-onnx-offline-tts
  156 +
  157 + - name: Copy files
  158 + shell: bash
  159 + run: |
  160 + export PATH=$GITHUB_WORKSPACE/toolchain/bin:$PATH
  161 + riscv64-unknown-linux-gnu-strip --version
  162 +
  163 + SHERPA_ONNX_VERSION=v$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt | cut -d " " -f 2 | cut -d '"' -f 2)
  164 +
  165 + dst=sherpa-onnx-${SHERPA_ONNX_VERSION}-linux-riscv64-${{ matrix.lib_type }}
  166 + mkdir $dst
  167 +
  168 + ls -lh build-riscv64-linux-gnu/install/lib
  169 +
  170 + cp -a build-riscv64-linux-gnu/install/bin $dst/
  171 + ls -lh $dst/bin/*
  172 + riscv64-unknown-linux-gnu-strip $dst/bin/*
  173 + ls -lh $dst
  174 +
  175 + lib_type=${{ matrix.lib_type }}
  176 + if [[ $lib_type == "shared" ]]; then
  177 + cp -a build-riscv64-linux-gnu/install/lib $dst/
  178 + rm -fv $dst/lib/libasound.so
  179 + rm -fv $dst/lib/libonnxruntime.so
  180 + rm -fv $dst/lib/libsherpa-onnx-fst.so
  181 + fi
  182 +
  183 + tree $dst
  184 +
  185 + tar cjvf ${dst}.tar.bz2 $dst
  186 +
  187 + - uses: actions/upload-artifact@v4
  188 + if: matrix.lib_type == 'shared'
  189 + with:
  190 + name: sherpa-onnx-linux-riscv64-shared
  191 + path: sherpa-onnx-*linux-riscv64-shared.tar.bz2
  192 +
  193 + - uses: actions/upload-artifact@v4
  194 + if: matrix.lib_type == 'static'
  195 + with:
  196 + name: sherpa-onnx-linux-riscv64-static
  197 + path: sherpa-onnx-*linux-riscv64-static.tar.bz2
  198 +
  199 + - name: Release pre-compiled binaries and libs for riscv64 linux ${{ matrix.lib_type }}
  200 + if: github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
  201 + uses: svenstaro/upload-release-action@v2
  202 + with:
  203 + file_glob: true
  204 + overwrite: true
  205 + file: sherpa-onnx-*linux-riscv64*.tar.bz2
  1 +#!/usr/bin/env bash
  2 +
  3 +if ! command -v riscv64-unknown-linux-gnu-g++ &> /dev/null; then
  4 + echo "Please install the toolchain first."
  5 + echo
  6 + echo "You can use the following command to install the toolchain:"
  7 + echo
  8 + echo " mkdir -p $HOME/software"
  9 + echo " cd $HOME/software"
  10 + echo " mkdir riscv64-glibc-ubuntu-18.04-nightly-2022.11.12-nightly"
  11 + echo " cd riscv64-glibc-ubuntu-18.04-nightly-2022.11.12-nightly"
  12 + echo " wget https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2022.11.12/riscv64-glibc-ubuntu-18.04-nightly-2022.11.12-nightly.tar.gz"
  13 + echo " tar xvf riscv64-glibc-ubuntu-18.04-nightly-2022.11.12-nightly.tar.gz --strip-components=1"
  14 + echo " export PATH=$HOME/software/riscv64-glibc-ubuntu-18.04-nightly-2022.11.12-nightly/bin"
  15 + echo
  16 + exit 1
  17 +fi
  18 +
  19 +if [ x$dir = x"" ]; then
  20 + dir=build-riscv64-linux-gnu
  21 +fi
  22 +mkdir -p $dir
  23 +cd $dir
  24 +
  25 +if [ ! -f alsa-lib/src/.libs/libasound.so ]; then
  26 + echo "Start to cross-compile alsa-lib"
  27 + if [ ! -d alsa-lib ]; then
  28 + git clone --depth 1 https://github.com/alsa-project/alsa-lib
  29 + fi
  30 + # If it shows:
  31 + # ./gitcompile: line 79: libtoolize: command not found
  32 + # Please use:
  33 + # sudo apt-get install libtool m4 automake
  34 + #
  35 + pushd alsa-lib
  36 + CC=riscv64-unknown-linux-gnu-gcc ./gitcompile --host=riscv64-unknown-linux-gnu
  37 + popd
  38 + echo "Finish cross-compiling alsa-lib"
  39 +fi
  40 +
  41 +export CPLUS_INCLUDE_PATH=$PWD/alsa-lib/include:$CPLUS_INCLUDE_PATH
  42 +export SHERPA_ONNX_ALSA_LIB_DIR=$PWD/alsa-lib/src/.libs
  43 +
  44 +if [[ x"$BUILD_SHARED_LIBS" == x"" ]]; then
  45 + # By default, use static link
  46 + BUILD_SHARED_LIBS=OFF
  47 +fi
  48 +
  49 +cmake \
  50 + -DBUILD_PIPER_PHONMIZE_EXE=OFF \
  51 + -DBUILD_PIPER_PHONMIZE_TESTS=OFF \
  52 + -DBUILD_ESPEAK_NG_EXE=OFF \
  53 + -DBUILD_ESPEAK_NG_TESTS=OFF \
  54 + -DCMAKE_INSTALL_PREFIX=./install \
  55 + -DCMAKE_BUILD_TYPE=Release \
  56 + -DBUILD_SHARED_LIBS=$BUILD_SHARED_LIBS \
  57 + -DSHERPA_ONNX_ENABLE_TESTS=OFF \
  58 + -DSHERPA_ONNX_ENABLE_PYTHON=OFF \
  59 + -DSHERPA_ONNX_ENABLE_CHECK=OFF \
  60 + -DSHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
  61 + -DSHERPA_ONNX_ENABLE_JNI=OFF \
  62 + -DSHERPA_ONNX_ENABLE_C_API=OFF \
  63 + -DSHERPA_ONNX_ENABLE_WEBSOCKET=OFF \
  64 + -DCMAKE_TOOLCHAIN_FILE=../toolchains/riscv64-linux-gnu.toolchain.cmake \
  65 + ..
  66 +
  67 +make VERBOSE=1 -j4
  68 +make install/strip
  69 +
  70 +# Enable it if only needed
  71 +# cp -v $SHERPA_ONNX_ALSA_LIB_DIR/libasound.so* ./install/lib/
  1 +# Copyright (c) 2022-2024 Xiaomi Corporation
  2 +message(STATUS "CMAKE_SYSTEM_NAME: ${CMAKE_SYSTEM_NAME}")
  3 +message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
  4 +
  5 +if(NOT CMAKE_SYSTEM_NAME STREQUAL Linux)
  6 + message(FATAL_ERROR "This file is for Linux only. Given: ${CMAKE_SYSTEM_NAME}")
  7 +endif()
  8 +
  9 +if(NOT CMAKE_SYSTEM_PROCESSOR STREQUAL riscv64)
  10 + message(FATAL_ERROR "This file is for riscv64 only. Given: ${CMAKE_SYSTEM_PROCESSOR}")
  11 +endif()
  12 +
  13 +if(BUILD_SHARED_LIBS)
  14 + message(FATAL_ERROR "This file is for building static libraries. BUILD_SHARED_LIBS: ${BUILD_SHARED_LIBS}")
  15 +endif()
  16 +
  17 +set(onnxruntime_URL "https://github.com/csukuangfj/onnxruntime-libs/releases/download/v1.18.0/onnxruntime-linux-riscv64-static_lib-1.18.0.zip")
  18 +set(onnxruntime_URL2 "https://hub.nuaa.cf/csukuangfj/onnxruntime-libs/releases/download/v1.18.0/onnxruntime-linux-riscv64-static_lib-1.18.0.zip")
  19 +set(onnxruntime_HASH "SHA256=6791d695d17118db6815364c975a9d7ea9a8909754516ed1b089fe015c20912e")
  20 +
  21 +# If you don't have access to the Internet,
  22 +# please download onnxruntime to one of the following locations.
  23 +# You can add more if you want.
  24 +set(possible_file_locations
  25 + $ENV{HOME}/Downloads/onnxruntime-linux-riscv64-static_lib-1.18.0.zip
  26 + ${CMAKE_SOURCE_DIR}/onnxruntime-linux-riscv64-static_lib-1.18.0.zip
  27 + ${CMAKE_BINARY_DIR}/onnxruntime-linux-riscv64-static_lib-1.18.0.zip
  28 + /tmp/onnxruntime-linux-riscv64-static_lib-1.18.0.zip
  29 + /star-fj/fangjun/download/github/onnxruntime-linux-riscv64-static_lib-1.18.0.zip
  30 +)
  31 +
  32 +foreach(f IN LISTS possible_file_locations)
  33 + if(EXISTS ${f})
  34 + set(onnxruntime_URL "${f}")
  35 + file(TO_CMAKE_PATH "${onnxruntime_URL}" onnxruntime_URL)
  36 + message(STATUS "Found local downloaded onnxruntime: ${onnxruntime_URL}")
  37 + set(onnxruntime_URL2)
  38 + break()
  39 + endif()
  40 +endforeach()
  41 +
  42 +FetchContent_Declare(onnxruntime
  43 + URL
  44 + ${onnxruntime_URL}
  45 + ${onnxruntime_URL2}
  46 + URL_HASH ${onnxruntime_HASH}
  47 +)
  48 +
  49 +FetchContent_GetProperties(onnxruntime)
  50 +if(NOT onnxruntime_POPULATED)
  51 + message(STATUS "Downloading onnxruntime from ${onnxruntime_URL}")
  52 + FetchContent_Populate(onnxruntime)
  53 +endif()
  54 +message(STATUS "onnxruntime is downloaded to ${onnxruntime_SOURCE_DIR}")
  55 +
  56 +# for static libraries, we use onnxruntime_lib_files directly below
  57 +include_directories(${onnxruntime_SOURCE_DIR}/include)
  58 +
  59 +file(GLOB onnxruntime_lib_files "${onnxruntime_SOURCE_DIR}/lib/lib*.a")
  60 +
  61 +set(onnxruntime_lib_files ${onnxruntime_lib_files} PARENT_SCOPE)
  62 +
  63 +message(STATUS "onnxruntime lib files: ${onnxruntime_lib_files}")
  64 +install(FILES ${onnxruntime_lib_files} DESTINATION lib)
  1 +# Copyright (c) 2022-2024 Xiaomi Corporation
  2 +message(STATUS "CMAKE_SYSTEM_NAME: ${CMAKE_SYSTEM_NAME}")
  3 +message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
  4 +
  5 +if(NOT CMAKE_SYSTEM_NAME STREQUAL Linux)
  6 + message(FATAL_ERROR "This file is for Linux only. Given: ${CMAKE_SYSTEM_NAME}")
  7 +endif()
  8 +
  9 +if(NOT CMAKE_SYSTEM_PROCESSOR STREQUAL riscv64)
  10 + message(FATAL_ERROR "This file is for riscv64 only. Given: ${CMAKE_SYSTEM_PROCESSOR}")
  11 +endif()
  12 +
  13 +if(NOT BUILD_SHARED_LIBS)
  14 + message(FATAL_ERROR "This file is for building shared libraries. BUILD_SHARED_LIBS: ${BUILD_SHARED_LIBS}")
  15 +endif()
  16 +
  17 +set(onnxruntime_URL "https://github.com/csukuangfj/onnxruntime-libs/releases/download/v1.18.0/onnxruntime-linux-riscv64-1.18.0.zip")
  18 +set(onnxruntime_URL2 "https://hub.nuaa.cf/csukuangfj/onnxruntime-libs/releases/download/v1.18.0/onnxruntime-linux-riscv64-1.18.0.zip")
  19 +set(onnxruntime_HASH "SHA256=87ef36dbba28ee332069e7e511dcb409913bdeeed231b45172fe200d71c690a2")
  20 +
  21 +# If you don't have access to the Internet,
  22 +# please download onnxruntime to one of the following locations.
  23 +# You can add more if you want.
  24 +set(possible_file_locations
  25 + $ENV{HOME}/Downloads/onnxruntime-linux-riscv64-1.18.0.zip
  26 + ${CMAKE_SOURCE_DIR}/onnxruntime-linux-riscv64-1.18.0.zip
  27 + ${CMAKE_BINARY_DIR}/onnxruntime-linux-riscv64-1.18.0.zip
  28 + /tmp/onnxruntime-linux-riscv64-1.18.0.zip
  29 + /star-fj/fangjun/download/github/onnxruntime-linux-riscv64-1.18.0.zip
  30 +)
  31 +
  32 +foreach(f IN LISTS possible_file_locations)
  33 + if(EXISTS ${f})
  34 + set(onnxruntime_URL "${f}")
  35 + file(TO_CMAKE_PATH "${onnxruntime_URL}" onnxruntime_URL)
  36 + message(STATUS "Found local downloaded onnxruntime: ${onnxruntime_URL}")
  37 + set(onnxruntime_URL2)
  38 + break()
  39 + endif()
  40 +endforeach()
  41 +
  42 +FetchContent_Declare(onnxruntime
  43 + URL
  44 + ${onnxruntime_URL}
  45 + ${onnxruntime_URL2}
  46 + URL_HASH ${onnxruntime_HASH}
  47 +)
  48 +
  49 +FetchContent_GetProperties(onnxruntime)
  50 +if(NOT onnxruntime_POPULATED)
  51 + message(STATUS "Downloading onnxruntime from ${onnxruntime_URL}")
  52 + FetchContent_Populate(onnxruntime)
  53 +endif()
  54 +message(STATUS "onnxruntime is downloaded to ${onnxruntime_SOURCE_DIR}")
  55 +
  56 +find_library(location_onnxruntime onnxruntime
  57 + PATHS
  58 + "${onnxruntime_SOURCE_DIR}/lib"
  59 + NO_CMAKE_SYSTEM_PATH
  60 +)
  61 +
  62 +message(STATUS "location_onnxruntime: ${location_onnxruntime}")
  63 +
  64 +add_library(onnxruntime SHARED IMPORTED)
  65 +
  66 +set_target_properties(onnxruntime PROPERTIES
  67 + IMPORTED_LOCATION ${location_onnxruntime}
  68 + INTERFACE_INCLUDE_DIRECTORIES "${onnxruntime_SOURCE_DIR}/include/onnxruntime"
  69 +)
  70 +
  71 +file(GLOB onnxruntime_lib_files "${onnxruntime_SOURCE_DIR}/lib/libonnxruntime*")
  72 +message(STATUS "onnxruntime lib files: ${onnxruntime_lib_files}")
  73 +install(FILES ${onnxruntime_lib_files} DESTINATION lib)
@@ -6,6 +6,12 @@ function(download_onnxruntime) @@ -6,6 +6,12 @@ function(download_onnxruntime)
6 message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}") 6 message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
7 if(SHERPA_ONNX_ENABLE_WASM) 7 if(SHERPA_ONNX_ENABLE_WASM)
8 include(onnxruntime-wasm-simd) 8 include(onnxruntime-wasm-simd)
  9 + elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL riscv64)
  10 + if(BUILD_SHARED_LIBS)
  11 + include(onnxruntime-linux-riscv64)
  12 + else()
  13 + include(onnxruntime-linux-riscv64-static)
  14 + endif()
9 elseif(CMAKE_SYSTEM_NAME STREQUAL Linux AND CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64) 15 elseif(CMAKE_SYSTEM_NAME STREQUAL Linux AND CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64)
10 if(BUILD_SHARED_LIBS) 16 if(BUILD_SHARED_LIBS)
11 include(onnxruntime-linux-aarch64) 17 include(onnxruntime-linux-aarch64)
@@ -2,7 +2,7 @@ function(download_piper_phonemize) @@ -2,7 +2,7 @@ function(download_piper_phonemize)
2 include(FetchContent) 2 include(FetchContent)
3 3
4 set(piper_phonemize_URL "https://github.com/csukuangfj/piper-phonemize/archive/dc6b5f4441bffe521047086930b0fc12686acd56.zip") 4 set(piper_phonemize_URL "https://github.com/csukuangfj/piper-phonemize/archive/dc6b5f4441bffe521047086930b0fc12686acd56.zip")
5 - set(piper_phonemize_URL2 "") 5 + set(piper_phonemize_URL2 "https://hub.nuaa.cf/csukuangfj/piper-phonemize/archive/dc6b5f4441bffe521047086930b0fc12686acd56.zip")
6 set(piper_phonemize_HASH "SHA256=b9faa04204b1756fa455a962abb1f037041c040133d55be58d11f11ab9b3ce14") 6 set(piper_phonemize_HASH "SHA256=b9faa04204b1756fa455a962abb1f037041c040133d55be58d11f11ab9b3ce14")
7 7
8 # If you don't have access to the Internet, 8 # If you don't have access to the Internet,
  1 +# Copied from https://github.com/Tencent/ncnn/blob/master/toolchains/riscv64-linux-gnu.toolchain.cmake
  2 +set(CMAKE_SYSTEM_NAME Linux)
  3 +set(CMAKE_SYSTEM_PROCESSOR riscv64)
  4 +
  5 +set(CMAKE_C_COMPILER "riscv64-unknown-linux-gnu-gcc")
  6 +set(CMAKE_CXX_COMPILER "riscv64-unknown-linux-gnu-g++")
  7 +
  8 +set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
  9 +set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
  10 +set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
  11 +
  12 +set(CMAKE_C_FLAGS "-march=rv64gc")
  13 +set(CMAKE_CXX_FLAGS "-march=rv64gc")
  14 +
  15 +# cache flags
  16 +set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags")
  17 +set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags")