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path: root/tcwg-benchmark-bare.sh
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#!/bin/bash

# Clean: shellcheck -e 2001 ./tcwg-benchmark.sh

set -ex

# Make shellcheck happy and workaround Jenkins not defining variables
# for empty arguments.
bench_container_tag="${bench_container_tag-bionic}"
toolchain_url="$toolchain_url"
toolchain_type="${toolchain_type-auto}"
bench_list="$bench_list"
cflags="$cflags"
ldflags="$ldflags"
fileserver="$fileserver"
forceinstall="$forceinstall"
results_id="$results_id"
BUILD_NUMBER="$BUILD_NUMBER"
NODE_NAME="$NODE_NAME"
WORKSPACE="$WORKSPACE"

# Jenkins doesn't define variables when parameter value is empty (like cflags),
# so enable "set -u" only after above binding of variables.
set -u

. jenkins-helpers.sh

# Start a container to run the benchmarks in.
# The board is connected to the slave via USB, the container needs
# special rights to access it.

# tcwg-benchmark user already exists, re-creating it causes an error.
newuser=
[ "x$USER" != "xtcwg-benchmark" ] && newuser="--newuser $USER"

./start-container-docker.sh \
    $newuser \
    --distro "$bench_container_tag" \
    --task bench \
    --docker_opts "--privileged -v /dev/bus/usb:/dev/bus/usb" \
    --prefix run_ > run-container.sh
trap "cleanup_all_containers" EXIT
. ./run-container.sh

# If $toolchain_url is of ssh:// type, don't use a remote build
# container, just use the ssh command as provided.
build_container_host=
build_container_port=
case "$toolchain_url" in
    "ssh://"*)
	ccprefix="${toolchain_url##ssh://}"

	# Extract host:port: specification from ccprefix, we don't
	# need to care about :parallelize here, just pass it to run.sh
	# if present.
	build=${ccprefix%:*}
	build_container_host="$(echo $build | cut -d: -f 1)"
	case ${ccprefix} in
	    *:*:*)
		build_container_port="$(echo $build | cut -s -d: -f 2)"
		;;
	    *:*)
		# If no port is specified, use 22 (ssh default port)
		build_container_port=22
		;;
	esac

	if [ "x$build_container_host" = "x" ]; then
	    echo "ERROR: ssh:// toolchain_url lacks a host: $toolchain_url."
	    exit 1
	fi
	if [ "x$build_container_port" = "x" ]; then
	    echo "ERROR: ssh:// toolchain_url lacks a port: $toolchain_url."
	    exit 1
	fi
	;;
    *)
	# When we copy the toolchain, access it from the 'run' container
	# run_container_host is set with . ./run-container.sh above
	# shellcheck disable=SC2154
	build_container_host=$run_container_host
	# shellcheck disable=SC2154
	build_container_port=$run_container_port
	;;
esac

case "$toolchain_url" in
    "ssh://"*)
	# Last component of ccprefix is the path, keep it
	toolchaindir="$(dirname ${ccprefix##*:})"
	;;
    "http://"*".tar.xz"|"https://"*".tar.xz"|"http://"*".tar.bz2"|"https://"*".tar.bz2")
	toolchaindir=$(untar_url "$toolchain_url" "$WORKSPACE" "--strip-components 1")
	;;
    "rsync://"*)
	ccprefix="${toolchain_url##rsync://}"

	# Extract host:port: specification from ccprefix, we don't
	# need to care about :parallelize here, just pass it to run.sh
	# if present.
	rsync_spec=${ccprefix%:*}
	rsync_host="$(echo $rsync_spec | cut -d: -f 1)"
	case ${ccprefix} in
	    *:*:*)
		rsync_port="$(echo $rsync_spec | cut -s -d: -f 2)"
		;;
	    *:*)
		# If no port is specified, use 22 (ssh default port)
		rsync_port=22
		;;
	esac
	# We want to access the remote toolchain via a container, to
	# avoid problems with the hosts's ssh server restrictions on the
	# number of simulaneous connexions.
	# We copy it to the build container (assuming it uses the same
	# architecture as the machine pointed to by $toolchain_url).
	# Assume ccprefix looks like /path/bin/target-triplet-, and
	# compute 'path'.
	src_toolchaindir=$(dirname "$(dirname ${ccprefix##*:})")
	toolchaindir="${WORKSPACE}/toolchain-${BUILD_NUMBER}"
	rsync -az --delete -e "ssh -p$rsync_port" "$rsync_host:$src_toolchaindir/" "$toolchaindir/"
	;;
    *)
	echo "ERROR: Cannot handle toolchain_url: $toolchain_url"
	exit 1
	;;
esac

# Sanity check that toolchain_type is supported
case "$toolchain_type" in
    gnu|llvm) ;;
    *)
	echo "ERROR: Unsupported toolchain type: $toolchain_type"
	exit 1
	;;
esac

# In the ssh:// case, we have to perform the 'find' operations
# remotely.
case "$toolchain_url" in
    "ssh://"*)
	maybe_remote="ssh -p $build_container_port $build_container_host"
	;;
    *)
	maybe_remote=""
	;;
esac

case "$toolchain_type" in
    "gnu"|"llvm") ;;
    "auto")
	if [ x"$($maybe_remote find "$toolchaindir" -path "*bin/*gcc" | wc -l)" != x"0" ]; then
	    toolchain_type="gnu"
	elif [ x"$($maybe_remote find "$toolchaindir" -path "*bin/*clang" | wc -l)" != x"0" ]; then
	    toolchain_type="llvm"
	else
	    echo "ERROR: Cannot autodetect toolchain type"
	    exit 1
	fi
	;;
esac

case "$toolchain_type" in
    "gnu") ccname="gcc" ;;
    "llvm") ccname="clang" ;;
esac
ccpath=$($maybe_remote find "$toolchaindir" -path "*bin/*$ccname")
if [ "$(echo "$ccpath" | wc -w)" -ne 1 ]; then
    echo "ERROR: found more than one compiler: $ccpath"
    exit 1
fi

# No need to copy the toolchain to the build container: it
# runs on the local machine and has access to $toolchaindir.
# FIXME: ssh:// access is currently broken.
case "$toolchain_url" in
    "ssh://"*) ;;
    *)
	ccprefix=$(echo "$ccpath" | sed -e "s/$ccname\$//")
	;;
esac

results_id=$(echo "$results_id" \
		 | sed -e "s/<build_num>/$BUILD_NUMBER/g" \
		       -e "s/@build_num@/$BUILD_NUMBER/g")
hw_tag="${results_id%%/*}"
if echo "$results_id" | grep -q "\.\."; then
    echo "ERROR: results_id should not escape /home/tcwg-benchmark/results* hierarchy; do not use \"..\""
    exit 1
fi
case "$hw_tag" in
    stm32*) hw_tag=${hw_tag##stm32_} ;;
    *)
	echo "ERROR: results_id does not start with a valid hw_tag"
	exit 1
	;;
esac

# vars are from run-container.sh sourced above
# shellcheck disable=SC2154
case "$bench_list" in
    *coremark*)
	remote_exec "$run_container_host:$run_container_port:$WORKSPACE/bmk-scripts:-t -Snone" \
		    "./coremark.sh" \
		    --ccprefix "$ccprefix" \
		    --cflags "$cflags" \
		    --ldflags "$ldflags" \
		    --forceinstall "${forceinstall}" \
		    --hw_tag "$hw_tag" \
		    --resultsdest "bkp-01.tcwglab:/home/tcwg-benchmark/results-${results_id}/${NODE_NAME}" \
		    --verbose true
	;;
esac

# Delete temporary toolchains to avoid filling disk
case "$toolchain_url" in
    "ssh://"*)
	# Nothing to do, we didn't copy any toolchain
	;;
    "http://"*|"https://"*|"rsync://"*)
	rm -rf $toolchaindir
	;;
esac