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#!/bin/bash
set -e
if [ x"$1" = x"start.sh" ]; then
cat /start.sh
exit 0
fi
worker_dir=/home/tcwg-buildbot/worker
if [ x"$1" != x"buildkite" ]; then
if [ -f $worker_dir/buildbot.tac ]; then
:
else
sudo -i -u tcwg-buildbot buildbot-worker create-worker $worker_dir "$@"
fi
fi
if [[ $2 == *"latest-gcc"* ]] ; then
install-gcc-latest.sh
cc=gcc-latest
cxx=g++-latest
else
release_num=17.0.6
case "$(uname -m)" in
aarch64)
release_arch=aarch64-linux-gnu
lib_arch=aarch64-unknown-linux-gnu
;;
*)
release_arch=armv7a-linux-gnueabihf
# It is intentional that this is v7l not v7a.
lib_arch=armv7l-unknown-linux-gnueabihf
;;
esac
release_path=/usr/local/clang+llvm-${release_num}-${release_arch}
cc=$release_path/bin/clang
cxx=$release_path/bin/clang++
# Libcxx picolibc build requires these tools.
ln -f -s $release_path/bin/ld.lld /usr/local/bin/ld.lld
ln -f -s $release_path/bin/llvm-as /usr/local/bin/llvm-as
ln -f -s $release_path/bin/llvm-ar /usr/local/bin/llvm-ar
ln -f -s $release_path/bin/llvm-strip /usr/local/bin/llvm-strip
# Starting with clang-11 we need clang's libs in ld.so's search path;
# otherwise we get failure to find libc++.so.
echo "$release_path/lib/$lib_arch" > /etc/ld.so.conf.d/clang.conf
ldconfig
fi
# With default PATH /usr/local/bin/cc and /usr/local/bin/c++ are detected as
# system compilers. No danger in ccaching results of system compiler since
# we always start with a clean cache in a new container.
cat > /usr/local/bin/cc <<EOF
#!/bin/sh
# This sed strips directories after $worker_dir/\$builder_dir; e.g.,
# $worker_dir/clang-aarch64-sve-vls/stage1/llvm becomes
# $worker_dir/clang-aarch64-sve-vls .
basedir=\$(pwd | sed -e "s#\($worker_dir/[^/]\+\)/.*#\1#")
if [ "\$basedir" != "\$(pwd)" ]; then
# We are inside a subdirectory of a buildbot builder directory, e.g.,
# /home/tcwg-buildbot/worker/clang-aarch64-sve-vls-2stage/stage1 .
# We set CCACHE_BASEDIR to "merge" ccache entries among different buildbot
# builders, so that multiple bots can share the results of their builds.
export CCACHE_BASEDIR="\$basedir"
fi
EOF
cp /usr/local/bin/cc /usr/local/bin/c++
cat >> /usr/local/bin/cc <<EOF
exec ccache $cc "\$@"
EOF
chmod +x /usr/local/bin/cc
cat >> /usr/local/bin/c++ <<EOF
exec ccache $cxx "\$@"
EOF
chmod +x /usr/local/bin/c++
if [ x"$1" != x"buildkite" ]; then
cat <<EOF | sudo -i -u tcwg-buildbot tee $worker_dir/info/admin
Linaro Toolchain Working Group <linaro-toolchain@lists.linaro.org>
EOF
fi
n_cores=$(nproc --all)
case "$n_cores" in
4)
hw="NVIDIA TK1 ${n_cores}x Cortex-A15"
;;
48)
hw="Fujitsu FX700 ${n_cores}x A64FX"
;;
160)
hw="Ampere Mt. Jade ${n_cores}x Neoverse-N1 provided by Equinix"
;;
*)
hw="${n_cores}x ARMv8"
;;
esac
if [ -f /sys/fs/cgroup/cpu.pressure ] \
|| ! [ -f /sys/fs/cgroup/cpuacct/cpuacct.stat ]; then
# This is for kernel 4.20 and newer, which replaces
# /sys/fs/cgroup/cpuacct/cpuacct.stat with /sys/fs/cgroup/cpu.pressure.
# Branch limit-on-psi gracefully handles absence of cpu.pressure, so
# it's OK to use it for [weird] cases when both cpu.pressure and
# cpuacct.stat are missing.
ninja_bin=/usr/local/bin/ninja.limit-on-psi
else
# This is for older kernels.
ninja_bin=/usr/local/bin/ninja.limit-on-cpu
# See https://github.com/maxim-kuvyrkov/ninja/commit/8fa112c0104d4cfd0bad0eb62e4cec03f7b51e14
# and https://github.com/maxim-kuvyrkov/ninja/commit/c3eb25f42c3ba5a0c57c482ecdd8051167fcbb61
# about this ugliness.
if [ -f /proc/config.gz ]; then
# CONFIG_HZ is set to 1000 on TK1s, which, luckily, provide /proc/config.gz.
zcat /proc/config.gz | grep "^CONFIG_HZ=" | sed -e "s/^CONFIG_HZ=//"
else
# CONFIG_HZ is set to 250 on all other current systems that we use for
# LLVM buildbots (this seems to be the current Ubuntu default).
echo "250"
fi > /etc/ninja_schedstat_hz
fi
case "$2" in
linaro-tk1-*)
# TK1s have CPU hot-plug, so ninja might detect smaller number of cores
# available for parallelism. Explicitly set "default" parallelism.
ninja_bin="$ninja_bin -j$n_cores"
;;
esac
cat > /usr/local/bin/ninja <<EOF
#!/bin/sh
exec $ninja_bin -l-10 "\$@"
EOF
chmod +x /usr/local/bin/ninja
if [ -f /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
mem_limit=$((($(cat /sys/fs/cgroup/memory/memory.limit_in_bytes) + 512*1024*1024) / (1024*1024*1024)))
else
mem_limit=$((($(cat /proc/meminfo | grep MemTotal | sed -e "s/[^0-9]\+\([0-9]\+\)[^0-9]\+/\1/") + 512*1024) / (1024*1024)))
fi
if [ x"$1" != x"buildkite" ]; then
cat <<EOF | sudo -i -u tcwg-buildbot tee $worker_dir/info/host
$hw; RAM ${mem_limit}GB
OS: $(lsb_release -ds)
Kernel: $(uname -rv)
Compiler: $(cc --version | head -n 1)
System Linker: $(ld --version | head -n 1)
C Library: $(ldd --version | head -n 1)
CMake: $(cmake --version | head -n 1)
EOF
fi
# Handle LNT performance bot.
case "$2" in
linaro-tk1-02)
# Borrowed from bmk-scripts.git/perfdatadir2csv.sh
perf_bin="/usr/lib/linux-tools/$(uname -r)/perf"
if ! [ -e "$perf_bin" ]; then
perf_bin="$(find /usr/lib/linux-tools/ -name perf | tail -n 1)"
if ! [ -e "$perf_bin" ]; then
echo "ERROR: Cannot find perf binary"
exit 1
fi
fi
cat > /usr/local/bin/perf <<EOF
#!/bin/sh
exec $perf_bin "\$@"
EOF
chmod +x /usr/local/bin/perf
;;
esac
if [ x"$1" = x"buildkite" ]; then
# Add load testing bots. Trigger these by modifying the Buildkite
# config in a Phabricator review.
if [[ $2 == *"-test" ]]; then
queue="libcxx-builders-linaro-arm-test"
# Production buildkite bots.
else
queue="libcxx-builders-linaro-arm"
fi
exec sudo -i -u tcwg-buildbot buildkite-agent start \
--name $2 \
--token $3 \
--tags "queue=$queue,arch=$(arch)" \
--build-path $worker_dir
else
exec sudo -i -u tcwg-buildbot buildbot-worker restart --nodaemon $worker_dir
fi
|
