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#!/bin/bash
# Builds rustc with the mrustc stage0 and downloaded stage0
set -e
WORKDIR=${WORKDIR:-rustc_bootstrap}/
RUSTC_VERSION=${*-1.29.0}
RUN_RUSTC_SUF=""
if [[ "$RUSTC_VERSION" == "1.29.0" ]]; then
RUSTC_VERSION_NEXT=1.30.0
elif [[ "$RUSTC_VERSION" == "1.19.0" ]]; then
RUSTC_VERSION_NEXT=1.20.0
RUN_RUSTC_SUF=-1.19.0
else
echo "Unknown rustc version"
fi
MAKEFLAGS=-j8
export MAKEFLAGS
echo "=== Building stage0 rustc (with libstd)"
make -C run_rustc RUSTC_VERSION=${RUSTC_VERSION}
PREFIX=${PWD}/run_rustc/output${RUN_RUSTC_SUF}/prefix/
if [ ! -e rustc-${RUSTC_VERSION_NEXT}-src.tar.gz ]; then
wget https://static.rust-lang.org/dist/rustc-${RUSTC_VERSION_NEXT}-src.tar.gz
fi
echo "--- Working in directory ${WORKDIR}"
echo "=== Cleaning up"
rm -rf ${WORKDIR}build
#
# Build rustc using entirely mrustc-built tools
#
echo "=== Building rustc bootstrap mrustc stage0"
mkdir -p ${WORKDIR}mrustc/
tar -xf rustc-${RUSTC_VERSION_NEXT}-src.tar.gz -C ${WORKDIR}mrustc/
cat - > ${WORKDIR}mrustc/rustc-${RUSTC_VERSION_NEXT}-src/config.toml <<EOF
[build]
cargo = "${PREFIX}bin/cargo"
rustc = "${PREFIX}bin/rustc"
full-bootstrap = true
vendor = true
EOF
echo "--- Running x.py, see ${WORKDIR}mrustc.log for progress"
(cd ${WORKDIR} && mv mrustc build)
cleanup_mrustc() {
(cd ${WORKDIR} && mv build mrustc)
}
trap cleanup_mrustc EXIT
(cd ${WORKDIR}build/rustc-${RUSTC_VERSION_NEXT}-src/ && LD_LIBRARY_PATH=${PREFIX}lib/rustlib/x86_64-unknown-linux-gnu/lib ./x.py build --stage 3) > ${WORKDIR}mrustc.log 2>&1
cleanup_mrustc
trap - EXIT
rm -rf ${WORKDIR}mrustc-output
cp -r ${WORKDIR}mrustc/rustc-${RUSTC_VERSION_NEXT}-src/build/x86_64-unknown-linux-gnu/stage2 ${WORKDIR}mrustc-output
tar -czf ${WORKDIR}mrustc.tar.gz -C ${WORKDIR} mrustc-output
#
# Build rustc by downloading the previous version of rustc (and its matching cargo)
#
echo "=== Building rustc bootstrap downloaded stage0"
mkdir -p ${WORKDIR}official/
tar -xf rustc-${RUSTC_VERSION_NEXT}-src.tar.gz -C ${WORKDIR}official/
cat - > ${WORKDIR}official/rustc-${RUSTC_VERSION_NEXT}-src/config.toml <<EOF
[build]
full-bootstrap = true
vendor = true
EOF
echo "--- Running x.py, see ${WORKDIR}official.log for progress"
(cd ${WORKDIR} && mv official build)
(cd ${WORKDIR}build/rustc-${RUSTC_VERSION_NEXT}-src/ && ./x.py build --stage 3) > ${WORKDIR}official.log 2>&1
(cd ${WORKDIR} && mv build official)
rm -rf ${WORKDIR}official-output
cp -r ${WORKDIR}official/rustc-${RUSTC_VERSION_NEXT}-src/build/x86_64-unknown-linux-gnu/stage2 ${WORKDIR}official-output
tar -czf ${WORKDIR}official.tar.gz -C ${WORKDIR} official-output
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