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# Copyright (c) 2022 The Regents of the University of California
# All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# stage 1: download the dependencies
FROM ubuntu:20.04 AS stage1
ENV DEBIAN_FRONTEND=noninteractive
RUN apt -y update && apt -y upgrade && apt -y install \
binutils build-essential libtool texinfo gzip zip unzip patchutils curl git \
make cmake ninja-build automake bison flex gperf grep sed gawk bc \
zlib1g-dev libexpat1-dev libmpc-dev libglib2.0-dev libfdt-dev libpixman-1-dev
# stage 2: download the compilers and compile them
FROM stage1 AS stage2
RUN mkdir -p /riscv/_install
WORKDIR /riscv
ENV PATH=`/riscv/_install/bin:$PATH`
RUN git clone https://github.com/riscv/riscv-gnu-toolchain
WORKDIR /riscv/riscv-gnu-toolchain
RUN git checkout 051b9f7ddb7d136777505ea19c70a41926842b96
RUN git submodule update --init --recursive
RUN ./configure --prefix=/riscv/_install --enable-multilib
RUN make linux -j`nproc`
RUN make install
WORKDIR /riscv
RUN git clone https://github.com/llvm/llvm-project.git riscv-llvm
WORKDIR /riscv/riscv-llvm
RUN git checkout 2ef95efb414e215490a222de05cafdffb8054758
RUN ln -s ../../clang llvm/tools || true
RUN mkdir _build
WORKDIR /riscv/riscv-llvm/_build
RUN cmake -G Ninja -DCMAKE_BUILD_TYPE="Release" \
-DBUILD_SHARED_LIBS=True -DLLVM_USE_SPLIT_DWARF=True \
-DCMAKE_INSTALL_PREFIX="/riscv/_install" \
-DLLVM_OPTIMIZED_TABLEGEN=True -DLLVM_BUILD_TESTS=False \
-DDEFAULT_SYSROOT="/riscv/_install/sysroot" \
-DLLVM_DEFAULT_TARGET_TRIPLE="riscv64-unknown-linux-gnu" \
-DLLVM_TARGETS_TO_BUILD="RISCV" \
../llvm
RUN cmake --build . --target install -j`nproc`
# stage 3: create a new container with the compiled cross-compilers only
FROM stage1
RUN mkdir -p /riscv/
COPY --from=stage2 /riscv/_install/ /riscv/_install
ENV PATH=/riscv/_install/bin:$PATH