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entrypoint.sh
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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# The goal is to launch (MPTCP) kernel selftests and more.
# But also to provide a dev env for kernel developers or testers.
# We should manage all errors in this script
set -e
is_ci() {
[ "${CI}" = "true" ]
}
is_github_action() {
[ "${GITHUB_ACTIONS}" = "true" ]
}
trace_needed() {
[ "${INPUT_TRACE}" = "1" ]
}
set_trace_on() {
if trace_needed; then
set -x
fi
}
set_trace_off() {
if trace_needed; then
set +x
fi
}
with_clang() {
[ "${INPUT_CLANG}" = "1" ]
}
set_trace_on
DEFAULT_VSOCK_CID="3"
# The behaviour can be changed with 'input' env var
: "${INPUT_CCACHE_MAXSIZE:=5G}"
: "${INPUT_CCACHE_DIR:=""}"
: "${INPUT_NO_BLOCK:=0}"
: "${INPUT_PACKETDRILL_NO_SYNC:=0}"
: "${INPUT_PACKETDRILL_NO_MORE_TOLERANCE:=0}"
: "${INPUT_PACKETDRILL_STABLE:=0}"
: "${INPUT_RUN_LOOP_CONTINUE:=0}"
: "${INPUT_RUN_TESTS_ONLY:=""}"
: "${INPUT_RUN_TESTS_EXCEPT:=""}"
: "${INPUT_SELFTESTS_DIR:=""}"
: "${INPUT_SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES:=1}"
: "${INPUT_SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY:=0}"
: "${INPUT_SELFTESTS_MPTCP_LIB_COLOR_FORCE:=1}"
: "${INPUT_HOSTNAME:="mptcpdev"}"
: "${INPUT_CPUS:=""}"
: "${INPUT_RAM:=""}"
: "${INPUT_GCOV:=""}"
: "${INPUT_NET_BRIDGES:=""}"
: "${INPUT_MAC_ADDRESS_PREFIX:=""}"
: "${INPUT_VSOCK_CID:="${DEFAULT_VSOCK_CID}"}"
: "${INPUT_CI_RESULTS_DIR:=""}"
: "${INPUT_CI_PRINT_EXIT_CODE:=1}"
: "${INPUT_CI_TIMEOUT_SEC:=5400}"
: "${INPUT_EXPECT_TIMEOUT:="-1"}"
: "${INPUT_BUILD_SKIP_PERF:=1}"
: "${INPUT_FULL_DUMP:=0}"
if [ -z "${INPUT_MODE}" ]; then
INPUT_MODE="${1}"
shift || true # none set
fi
# to be able to set an extra env var
if [[ "${INPUT_EXTRA_ENV}" =~ ^"INPUT_"[A-Z0-9_]+"="[a-zA-Z0-9_]+$ ]]; then
eval "${INPUT_EXTRA_ENV}"
fi
: "${PACKETDRILL_GIT_BRANCH:=mptcp-net-next}"
: "${VIRTME_ARCH:="$(uname -m)"}"
TIMESTAMPS_SEC_START=$(date +%s)
# CI only: estimated time before (clone + boot) and after (artifacts) running this script
VIRTME_CI_ESTIMATED_EXTRA_TIME="540"
# max time to boot: it should take less than one minute with a debug kernel, *5 to be safe
VIRTME_EXPECT_BOOT_TIMEOUT="300"
# max time to shutdown: it should take one second
VIRTME_EXPECT_SHUTDOWN_TIMEOUT="60"
KERNEL_SRC="${PWD}"
# used to pass environment variables to the VM
BASH_PROFILE="/root/.bash_profile"
VIRTME_WORKDIR="${KERNEL_SRC}/.virtme"
VIRTME_SCRIPTS_DIR="${VIRTME_WORKDIR}/scripts"
VIRTME_HEADERS_DIR="${VIRTME_WORKDIR}/headers"
VIRTME_CURRENT_BUILD_DIR="${INPUT_CURRENT_BUILD:-"${VIRTME_WORKDIR}/current_build"}"
VIRTME_SCRIPT="${VIRTME_SCRIPTS_DIR}/tests.sh"
VIRTME_SCRIPT_END="__VIRTME_END__"
VIRTME_SCRIPT_UNEXPECTED_STOP="Unexpected stop of the VM"
VIRTME_SCRIPT_TIMEOUT="${VIRTME_SCRIPTS_DIR}/tests.timeout"
VIRTME_SCRIPT_TIMEOUT_END="__VIRTME_TIMEOUT_END__"
VIRTME_SCRIPT_TIMEOUT_GDB="${VIRTME_SCRIPTS_DIR}/gdb.timeout"
VIRTME_RUN_SCRIPT="${VIRTME_SCRIPTS_DIR}/virtme.sh"
VIRTME_RUN_EXPECT="${VIRTME_SCRIPTS_DIR}/virtme.expect"
SELFTESTS_DIR="${INPUT_SELFTESTS_DIR:-tools/testing/selftests/net/mptcp}"
SELFTESTS_CONFIG="${SELFTESTS_DIR}/config"
BPFTESTS_DIR="${INPUT_BPFTESTS_DIR:-tools/testing/selftests/bpf}"
BPFTESTS_CONFIG="${BPFTESTS_DIR}/config"
export CCACHE_MAXSIZE="${INPUT_CCACHE_MAXSIZE}"
VIRTME_CONFIGKERNEL="virtme-configkernel"
VIRTME_RUN="virtme-run"
VIRTME_RUN_OPTS=(
--arch "${VIRTME_ARCH}"
--name "${INPUT_HOSTNAME}"
--mods=auto
--rw # Don't use "rwdir", it will use 9p ; in a container, we can use rw
--pwd
--server --port "${INPUT_VSOCK_CID}" # To connect to the VM using VSock
--show-command
--verbose --show-boot-console
--kopt nokaslr # needed for gdb
--kopt mitigations=off
)
VIRTME_RUN_QEMU_OPTS=(
-gdb tcp::$((1234 + INPUT_VSOCK_CID - DEFAULT_VSOCK_CID))
-qmp "tcp::$((3636 + INPUT_VSOCK_CID - DEFAULT_VSOCK_CID)),server,nowait"
)
# results dir
RESULTS_DIR_BASE="${VIRTME_WORKDIR}/results"
RESULTS_DIR=
# log files
OUTPUT_VIRTME=
TESTS_SUMMARY=
CONCLUSION=
KMEMLEAK=
LCOV_FILE=
LCOV_TXT=
LCOV_HTML=
EXIT_STATUS=0
EXIT_REASONS=()
EXIT_TITLE="KVM Validation"
EXPECT=0
VIRTME_EXEC_RUN="${INPUT_VIRTME_EXEC_RUN:-"${KERNEL_SRC}/.virtme-exec-run"}"
VIRTME_EXEC_PRE="${KERNEL_SRC}/.virtme-exec-pre"
VIRTME_EXEC_POST="${KERNEL_SRC}/.virtme-exec-post"
VIRTME_PREPARE_POST="${KERNEL_SRC}/.virtme-prepare-post"
COLOR_RED="\E[1;31m"
COLOR_GREEN="\E[1;32m"
COLOR_YELLOW="\E[1;33m"
COLOR_BLUE="\E[1;34m"
COLOR_RESET="\E[0m"
# $1: color, $2: text
print_color() {
echo -e "${START_PRINT:-}${*}${COLOR_RESET}"
}
print() {
print_color "${COLOR_GREEN}${*}"
}
printinfo() {
print_color "${COLOR_BLUE}${*}"
}
printerr() {
print_color "${COLOR_RED}${*}" >&2
}
if is_github_action; then
# $1: description
log_section_start() {
echo -e "\n::group::${COLOR_YELLOW}${*}${COLOR_RESET}"
}
log_section_end() {
echo -e "::endgroup::\n"
}
else
# $1: description
log_section_start() {
printinfo "${@}"
}
log_section_end() {
true
}
fi
# $1: mode
is_mode_normal() {
[[ "${1}" == *"normal" ]]
}
# $1: mode
is_mode_debug() {
[[ "${1}" == *"debug" ]]
}
# $1: mode
is_mode_btf() {
[[ "${1}" == "btf-"* ]]
}
# $1: mode
_get_results_dir() {
echo "${RESULTS_DIR_BASE}/$(git rev-parse --short HEAD || echo "UNKNOWN")/${HOSTNAME}/${1}"
}
# $1: pid
kill_wait() {
local pid="${1}"
if [ -z "${pid}" ]; then
return
fi
kill "${pid}"
while [ -d "/proc/${pid}" ]; do
sleep 0.1
done
}
# $1: bridge name
_add_bridge() { local router static
local br="${1}"
local i="${br//[^0-9]/}" # only the numbers
local prefix="10.0.${i}"
local conf="/tmp/udhcpd-${br}.conf"
local pidfile="/var/run/udhcpd-${br}.pid"
local leases="/var/lib/misc/udhcpd-${br}.leases"
VIRTME_RUN_OPTS+=("--net=bridge=${br}")
if [ -n "${INPUT_MAC_ADDRESS_PREFIX}" ]; then
static="static_lease ${INPUT_MAC_ADDRESS_PREFIX%=*}:0${i} ${prefix}.${INPUT_MAC_ADDRESS_PREFIX#*=}"
fi
# already launched?
if grep -wq "${br}" /etc/qemu/bridge.conf; then
if [ -n "${static}" ]; then
echo "${static}" >> "${conf}"
kill_wait "$(<"${pidfile}")"
busybox udhcpd "${conf}"
fi
return 0
fi
echo "allow ${br}" >> /etc/qemu/bridge.conf
brctl addbr "${br}"
ip addr add "${prefix}.1/24" dev "${br}"
ip link set "${br}" up
# one default address
if [ "${i}" = "0" ]; then
router="opt router ${prefix}.1"
fi
cat <<-EOF > "${conf}"
start ${prefix}.2
end ${prefix}.254
interface ${br}
pidfile ${pidfile}
lease_file ${leases}
opt subnet 255.255.255.0
${router}
${static}
EOF
touch "${leases}" # to avoid a warning
busybox udhcpd "${conf}"
}
_setup_bridges() {
chmod u+s /usr/lib/qemu/qemu-bridge-helper
mkdir -p /etc/qemu
touch /etc/qemu/bridge.conf
chmod 755 /etc/qemu/bridge.conf
sysctl -w net.bridge.bridge-nf-call-ip6tables=0
sysctl -w net.bridge.bridge-nf-call-iptables=0
sysctl -w net.bridge.bridge-nf-call-arptables=0
# only v4 for the moment
if ! iptables -t nat -C POSTROUTING -s 10.0.0.0/16 -o eth0 -j MASQUERADE 2>/dev/null; then
iptables -t nat -A POSTROUTING -s 10.0.0.0/16 -o eth0 -j MASQUERADE
fi
if [ -n "${INPUT_MAC_ADDRESS_PREFIX}" ]; then
VIRTME_RUN_OPTS+=("--net-mac-address" "${INPUT_MAC_ADDRESS_PREFIX%=*}:00")
fi
local br
for br in "${@}"; do
_add_bridge "${br}"
done
}
setup_env() { local mode
mode="${1}"
log_section_start "Setup environment"
EXIT_TITLE="${EXIT_TITLE}: ${mode}" # only one mode
if [ -n "${INPUT_RUN_TESTS_ONLY}" ]; then
EXIT_TITLE="${EXIT_TITLE} (only ${INPUT_RUN_TESTS_ONLY})"
fi
if [ -n "${INPUT_RUN_TESTS_EXCEPT}" ]; then
EXIT_TITLE="${EXIT_TITLE} (except ${INPUT_RUN_TESTS_EXCEPT})"
fi
# Avoid 'unsafe repository' error: we need to get the rev/tag later from
# this docker image
git config --global --replace-all safe.directory "${KERNEL_SRC}" || true
# Set a name, just in case for automations
git config --global user.name "MPTCP Virtme Docker"
git config --global user.email "[email protected]"
# Avoid a long advice
git config --global advice.detachedHead false
mkdir -p "/root/.config/gdb"
echo "add-auto-load-safe-path ${KERNEL_SRC}/scripts/gdb/vmlinux-gdb.py" \
> "/root/.config/gdb/gdbinit"
VIRTME_BUILD_DIR="${VIRTME_WORKDIR}/build"
with_clang && VIRTME_BUILD_DIR+="-clang"
is_mode_debug "${mode}" && VIRTME_BUILD_DIR+="-debug"
is_mode_btf "${mode}" && VIRTME_BUILD_DIR+="-btf"
[ -n "${INPUT_BUILD_SUFFIX}" ] && VIRTME_BUILD_DIR+="-${INPUT_BUILD_SUFFIX}"
VIRTME_PERF_DIR="${VIRTME_BUILD_DIR}/tools/perf"
VIRTME_TOOLS_SBIN_DIR="${VIRTME_BUILD_DIR}/tools/sbin"
VIRTME_CACHE_DIR="${VIRTME_BUILD_DIR}/.cache"
VIRTME_KCONFIG="${VIRTME_BUILD_DIR}/.config"
if [ -n "${INPUT_CCACHE_DIR}" ]; then
export CCACHE_DIR="${VIRTME_WORKDIR}/${INPUT_CCACHE_DIR}"
else
export CCACHE_DIR="${VIRTME_WORKDIR}/ccache"
with_clang && CCACHE_DIR+="-clang"
is_mode_debug "${mode}" && CCACHE_DIR+="-debug"
is_mode_btf "${mode}" && CCACHE_DIR+="-btf"
[ -n "${INPUT_BUILD_SUFFIX}" ] && CCACHE_DIR+="-${INPUT_BUILD_SUFFIX}"
fi
read -ra MAKE_ARGS <<< "${INPUT_MAKE_ARGS}"
with_clang && MAKE_ARGS+=(LLVM=1 LLVM_IAS=1 CC=clang ARCH="${VIRTME_ARCH}")
MAKE_ARGS_O=("${MAKE_ARGS[@]}" O="${VIRTME_BUILD_DIR}")
export KBUILD_OUTPUT="${VIRTME_BUILD_DIR}"
export KCONFIG_CONFIG="${VIRTME_KCONFIG}"
if [ "${INPUT_CLEAN}" = 1 ]; then
rm -rf "${VIRTME_BUILD_DIR}" "${VIRTME_PERF_DIR}"
fi
mkdir -p \
"${VIRTME_BUILD_DIR}" \
"${VIRTME_SCRIPTS_DIR}" \
"${VIRTME_HEADERS_DIR}" \
"${VIRTME_PERF_DIR}" \
"${VIRTME_CACHE_DIR}" \
"${CCACHE_DIR}"
chmod 777 "${VIRTME_CACHE_DIR}" # to let users writting files there, e.g. clangd
rm -rf "${VIRTME_CURRENT_BUILD_DIR}"
ln -s "${VIRTME_BUILD_DIR}" "${VIRTME_CURRENT_BUILD_DIR}"
if is_ci; then
# Root dir: not to have to go down dirs to get artifacts
RESULTS_DIR="${KERNEL_SRC}${INPUT_CI_RESULTS_DIR:+/${INPUT_CI_RESULTS_DIR}}"
: "${INPUT_CPUS:=$(nproc)}" # use all available resources
: "${INPUT_GCOV:=1}"
# The CI doesn't need to access to the outside world, so no '--net'
else
# avoid override
RESULTS_DIR="$(_get_results_dir "${mode}")"
rm -rf "${RESULTS_DIR}"
: "${INPUT_CPUS:=2}" # limit to 2 cores for now
: "${INPUT_GCOV:=0}"
# add net support, can be useful, but delay the start of the tests (~1 sec?)
if [ -z "${INPUT_NET_BRIDGES}" ]; then
VIRTME_RUN_OPTS+=("--net")
fi
fi
if [ -n "${INPUT_NET_BRIDGES}" ]; then
local bridges
IFS=',' read -ra bridges <<< "${INPUT_NET_BRIDGES}"
_setup_bridges "${bridges[@]}"
fi
: "${INPUT_RAM:="$((2048 * (1 + INPUT_GCOV)))M"}" # More needed for GCOV, not to swap
VIRTME_RUN_OPTS+=(
--kdir "${VIRTME_BUILD_DIR}"
--cpus "${INPUT_CPUS}"
--memory "${INPUT_RAM}"
)
if [ "${INPUT_FULL_DUMP}" = 1 ]; then
VIRTME_RUN_OPTS+=(--disable-microvm)
VIRTME_RUN_QEMU_OPTS+=(-device vmcoreinfo)
fi
# To avoid overriding files
if [ "${INPUT_VSOCK_CID}" != "${DEFAULT_VSOCK_CID}" ]; then
RESULTS_DIR+="/${INPUT_VSOCK_CID}"
fi
mkdir -p "${RESULTS_DIR}"
OUTPUT_VIRTME="${RESULTS_DIR}/output.log"
TESTS_SUMMARY="${RESULTS_DIR}/summary.txt"
CONCLUSION="${RESULTS_DIR}/conclusion.txt"
KMEMLEAK="${RESULTS_DIR}/kmemleak.txt"
LCOV_FILE="${RESULTS_DIR}/kernel.lcov"
LCOV_TXT="${RESULTS_DIR}/coverage.txt"
LCOV_HTML="${RESULTS_DIR}/lcov"
KVERSION=$(make -C "${KERNEL_SRC}" -s kernelversion) ## 5.17.0 or 5.17.0-rc8
KVER_MAJ=${KVERSION%%.*} ## 5
KVER_MIN=${KVERSION#*.} ## 17.0*
KVER_MIC=${KVER_MIN#*.} ## 0
KVER_MIN=${KVER_MIN%%.*} ## 17
# without rc, it means we probably already merged with net-next
if [[ ! "${KVERSION}" =~ rc ]] && [ "${KVER_MIC}" = 0 ]; then
KVER_MIN=$((KVER_MIN + 1))
# max .19 because Linus has 20 fingers
if [ ${KVER_MIN} -gt 19 ]; then
KVER_MAJ=$((KVER_MAJ + 1))
KVER_MIN=0
fi
fi
if [ "${KVER_MAJ}" -lt 5 ] ||
{ [ "${KVER_MAJ}" -eq 5 ] && [ "${KVER_MIN}" -le 10 ]; }; then
# virtiofs doesn't seem to be supported on old kernels
VIRTME_RUN_OPTS+=(--force-9p)
fi
if [ "${KVER_MAJ}" -gt 6 ] ||
{ [ "${KVER_MAJ}" -eq 6 ] && [ "${KVER_MIN}" -gt 6 ]; }; then
# vsock console seems working fine from >6.6
VSOCK_OK=1
else
VSOCK_OK=0
fi
log_section_end
}
_get_last_iproute_version() {
curl https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/refs/tags 2>/dev/null | \
grep "/tag/?h=v[0-9]" | \
cut -d\' -f2 | cut -d= -f2 | \
sort -Vu | \
tail -n1
}
check_last_iproute() { local last curr
# only check on CI
if ! is_ci; then
return 0
fi
# skip the check for stable, fine not to have the latest version
if [ "${INPUT_PACKETDRILL_STABLE}" = "1" ]; then
return 0
fi
log_section_start "Check IPRoute2 version"
last="$(_get_last_iproute_version)"
curr="v$(ip -V | sed 's/.*iproute2-\([0-9.]\+\).*/\1/')"
if [ "${curr}" = "${last}" ]; then
printinfo "IPRoute2: using the last version: ${last}"
else
printerr "WARN: IPRoute2: not the last version: ${curr} < ${last}"
fi
log_section_end
}
_check_source_exec_one() {
local src="${1}"
local reason="${2}"
if [ -f "${src}" ]; then
printinfo "This script file exists and will be used ${reason}: $(basename "${src}")"
cat -n "${src}"
if is_ci || [ "${INPUT_NO_BLOCK}" = "1" ]; then
printinfo "Check source exec: not blocking"
else
print "Press Enter to continue (use 'INPUT_NO_BLOCK=1' to avoid this)"
read -r
fi
fi
}
check_source_exec_all() {
log_section_start "Check extented exec files"
_check_source_exec_one "${VIRTME_EXEC_PRE}" "before the tests suite"
_check_source_exec_one "${VIRTME_EXEC_RUN}" "to replace the execution of the whole tests suite"
_check_source_exec_one "${VIRTME_EXEC_POST}" "after the tests suite"
log_section_end
}
_make_j() {
make -j"$(nproc)" -l"$(nproc)" "${@}"
}
_make() {
_make_j "${MAKE_ARGS[@]}" "${@}"
}
_make_o() {
_make_j "${MAKE_ARGS_O[@]}" "${@}"
}
# $1: source ; $2: target
_add_symlink() {
local src="${1}"
local dst="${2}"
if [ -e "${dst}" ] && [ ! -L "${dst}" ]; then
printerr "${dst} already exists and is not a symlink, please remove it"
return 1
fi
ln -sf "${src}" "${dst}"
}
# $1: mode ; [rest: extra kconfig]
gen_kconfig() { local mode kconfig=() vck rc=0
mode="${1}"
shift
log_section_start "Generate kernel config"
vck=(--arch "${VIRTME_ARCH}" --defconfig --custom "${SELFTESTS_CONFIG}")
if is_mode_debug "${mode}"; then
kconfig+=(
-e NET_NS_REFCNT_TRACKER # useful for 'net' tests
-d SLUB_DEBUG_ON # perf impact is too important
)
local debug_config="kernel/configs/debug.config"
# Introduced in v5.17
if [ ! -s "${debug_config}" ]; then
debug_config="${VIRTME_CACHE_DIR}/debug.config"
curl "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/kernel/configs/debug.config" > "${debug_config}"
fi
vck+=(--custom "${debug_config}")
else
# low-overhead sampling-based memory safety error detector.
# Only in non-debug: KASAN is more precise
kconfig+=(-e KFENCE)
fi
# stop at the first oops or lockup, no need to continue in a bad state
kconfig+=(
-e PANIC_ON_OOPS
-e SOFTLOCKUP_DETECTOR
-e BOOTPARAM_SOFTLOCKUP_PANIC # instead of blocking
-e HARDLOCKUP_DETECTOR
-e BOOTPARAM_HUNG_TASK_PANIC # instead of blocking
-e DETECT_HUNG_TASK
-e BOOTPARAM_HUNG_TASK_PANIC # instead of blocking
)
# Debug info for developers
kconfig+=(-e DEBUG_INFO -e DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT -e GDB_SCRIPTS)
if with_clang; then
kconfig+=(-e DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT)
else
# decode_stacktrace.sh script reports '??:?' with GCC and DWARF5
kconfig+=(-e DEBUG_INFO_DWARF4)
fi
# Compressed (old/new option)
kconfig+=(-e DEBUG_INFO_COMPRESSED -e DEBUG_INFO_COMPRESSED_ZLIB)
# We need more debug info but it is slow to generate
if is_mode_btf "${mode}"; then
vck+=(--custom "${BPFTESTS_CONFIG}")
kconfig+=(-e DEBUG_INFO_BTF_MODULES -e MODULE_ALLOW_BTF_MISMATCH)
# Fix ./include/linux/if.h:28:10: fatal error:
# sys/socket.h: no such file or directory
kconfig+=(-d IA32_EMULATION)
elif is_ci || [ "${mode}" != "debsym" ]; then
kconfig+=(-e DEBUG_INFO_REDUCED -e DEBUG_INFO_SPLIT)
fi
# GCov for the CI
if [ "${INPUT_GCOV}" = 1 ]; then
kconfig+=(-e GCOV_KERNEL -e GCOV_PROFILE_MPTCP)
fi
# Debug tools for developers
kconfig+=(
-e DYNAMIC_DEBUG --set-val CONSOLE_LOGLEVEL_DEFAULT 8
-e FTRACE -e FUNCTION_TRACER -e DYNAMIC_FTRACE
-e FTRACE_SYSCALLS -e HIST_TRIGGERS
)
# Extra sanity checks in networking: for the moment, small checks
kconfig+=(-e DEBUG_NET)
# Extra options needed for MPTCP KUnit tests
kconfig+=(-m KUNIT -e KUNIT_DEBUGFS -d KUNIT_ALL_TESTS -m MPTCP_KUNIT_TEST)
# Options for BPF
kconfig+=(-e BPF_JIT -e BPF_SYSCALL)
# Extra options needed for packetdrill
# note: we still need SHA1 for fallback tests with v0
kconfig+=(-e TUN -e CRYPTO_USER_API_HASH -e CRYPTO_SHA1)
# Useful to reproduce issue
kconfig+=(-e NET_SCH_TBF)
# Disable retpoline to accelerate tests
kconfig+=(-d RETPOLINE)
# Disable components we don't need
kconfig+=(
-d PCCARD -d MACINTOSH_DRIVERS -d SOUND -d USB_SUPPORT
-d NEW_LEDS -d SURFACE_PLATFORMS -d DRM -d FB -d ATA
-d MISC_FILESYSTEMS
)
# extra config
if [ -s "${1:-}" ]; then
local i
for i in "${@}"; do
# These options are already set by virtme, to avoid
# duplicated output in the terminal, e.g. syzbot options
sed -i 's/console=\S\+ //g;s/earlyprintk=\S\+ //g' "${i}"
vck+=(--custom "${i}")
done
# Disable components present in syzbot and not needed here
kconfig+=(
-d WLAN -d WIRELESS -d HAMRADIO -d CAN -d BT -d CAIF -d NFC
-d MEDIA_SUPPORT -d INFINIBAND -d STAGING -d HID
-d X86_PLATFORM_DEVICES -d BATMAN_ADV -d OPENVSWITCH -d MPLS
-d QRTR -d IP_DCCP -d RDS -d DLM -d IP_SCTP
-d BCACHEFS_FS -d F2FS_FS -d BTRFS_FS -d OCFS2_FS -d XFS_FS
-d JFS_FS -d ISO9660_FS -d NFS_FS -d NFSD
-d CEPH_FS -d CIFS -d SMB_SERVER -d AFS_FS -d TTY_PRINTK
)
# Disable all net vendors, except Intel, for their e1000 driver
# shellcheck disable=SC2207 # we do want to split
kconfig+=($(grep "^config NET_VENDOR_" drivers/net/ethernet/*/Kconfig |
awk '{ print "-d " $2 }'))
kconfig+=(-e NET_VENDOR_INTEL)
else
kconfig+=("${@}")
fi
# KBUILD_OUTPUT is used by virtme
"${VIRTME_CONFIGKERNEL}" "${vck[@]}" "${MAKE_ARGS_O[@]}" || rc=${?}
./scripts/config --file "${VIRTME_KCONFIG}" "${kconfig[@]}" || rc=${?}
_make_o olddefconfig || rc=${?}
if is_ci; then
# Useful to help reproducing issues later
zstd -19 -T0 "${VIRTME_KCONFIG}" -o "${RESULTS_DIR}/config.zstd" || rc=${?}
fi
log_section_end
return ${rc}
}
build_kernel() { local rc=0
log_section_start "Build kernel"
if [ "${INPUT_GCOV}" = 1 ]; then
KCFLAGS="-fprofile-update=atomic" _make_o || rc=${?}
else
_make_o || rc=${?}
fi
# virtme will mount a tmpfs there + symlink to .virtme_mods
mkdir -p /lib/modules
log_section_end
return ${rc}
}
build_compile_commands() { local rc=0
log_section_start "Build compile_commands.json"
_make_o compile_commands.json || rc=${?}
log_section_end
return ${rc}
}
install_kernel_headers() { local rc=0
log_section_start "Install kernel headers"
# for BPFTrace and cie
cp -r include/ "${VIRTME_BUILD_DIR}"
_make_o headers_install INSTALL_HDR_PATH="${VIRTME_HEADERS_DIR}" || rc=${?}
log_section_end
return ${rc}
}
build_perf() { local rc=0
if [ "${INPUT_BUILD_SKIP_PERF}" = 1 ]; then
printinfo "Skip Perf build"
return 0
fi
log_section_start "Build Perf"
cd tools/perf
_make O="${VIRTME_PERF_DIR}" DESTDIR=/usr install || rc=${?}
cd "${KERNEL_SRC}"
log_section_end
return ${rc}
}
build_gdb_index() { local rc=0
if readelf -S vmlinux 2>/dev/null | grep -q ".gdb_index"; then
printinfo "Skip GDB Index build: already there"
return 0
fi
log_section_start "Build GDB Index"
ln -sf "${VIRTME_CURRENT_BUILD_DIR}/vmlinux" .
ln -sf "${VIRTME_CURRENT_BUILD_DIR}/scripts/gdb/linux/constants.py" scripts/gdb/linux/
GDB=gdb-multiarch gdb-add-index vmlinux || rc=${?}
log_section_end
return ${rc}
}
build() {
if [ "${INPUT_BUILD_SKIP}" = 1 ]; then
printinfo "Skip kernel build"
return 0
fi
ccache_stat
build_kernel
if with_clang; then
build_compile_commands || true # nice to have
fi
build_gdb_index
install_kernel_headers
build_perf
ccache_stat
}
build_selftests() { local rc=0
if [ "${INPUT_BUILD_SKIP_SELFTESTS}" = 1 ]; then
printinfo "Skip selftests build"
return 0
fi
log_section_start "Build the selftests $(basename "${SELFTESTS_DIR}")"
_make_o KHDR_INCLUDES="-I${VIRTME_HEADERS_DIR}/include" -C "${SELFTESTS_DIR}" || rc=${?}
log_section_end
return ${rc}
}
build_bpftests() { local rc=0
if [ "${INPUT_BUILD_SKIP_BPFTESTS}" = 1 ]; then
printinfo "Skip bpftests build"
return 0
fi
log_section_start "Build BPFTests"
_make_o KHDR_INCLUDES="-I${VIRTME_HEADERS_DIR}/include" -C "${BPFTESTS_DIR}" || rc=${?}
log_section_end
return ${rc}
}
build_packetdrill() { local old_pwd kversion branch rc=0
if [ "${INPUT_BUILD_SKIP_PACKETDRILL}" = 1 ]; then
printinfo "Skip Packetdrill build"
return 0
fi
log_section_start "Build Packetdrill"
old_pwd="${PWD}"
# make sure we have the last stable tests
cd /opt/packetdrill/
if [ "${INPUT_PACKETDRILL_NO_SYNC}" = "1" ]; then
printinfo "Packetdrill: no sync"
else
git fetch origin
branch="${PACKETDRILL_GIT_BRANCH}"
if [ "${INPUT_PACKETDRILL_STABLE}" = "1" ]; then
kversion="mptcp-${KVER_MAJ}.${KVER_MIN}"
# set the new branch only if it exists. If not, take the dev one
if git show-ref --quiet "refs/remotes/origin/${kversion}"; then
branch="${kversion}"
fi
fi
git checkout -f "origin/${branch}"
fi
cd gtests/net/packetdrill/
./configure
_make || rc=${?}
if [ "${INPUT_PACKETDRILL_NO_MORE_TOLERANCE}" = "1" ]; then
printinfo "Packetdrill: not modifying the tolerance"
else
cd ../mptcp
# reduce debug logs: too much
set_trace_off
local pf val new_val
for pf in $(git grep -l "^--tolerance_usecs="); do
# shellcheck disable=SC2013 # to filter duplicated ones
for val in $(grep "^--tolerance_usecs=" "${pf}" | cut -d= -f2 | sort -u); do
if is_mode_debug "${mode}"; then
# Increase tolerance in debug mode:
# the environment can be very slow
new_val=$((val * 8))
else
# Triple the time in normal mode:
# public CI can be quite loaded...
new_val=$((val * 3))
fi
sed -i "s/^--tolerance_usecs=${val}$/--tolerance_usecs=${new_val}/g" "${pf}"
done
done
set_trace_on
fi
cd "${old_pwd}"
log_section_end
return ${rc}
}
build_tests() { local mode
mode="${1}"
build_selftests
if is_mode_btf "${mode}"; then
build_bpftests
fi
build_packetdrill
}
prepare() {
printinfo "Prepare the environment"
cat <<EOF > "${BASH_PROFILE}"
export KERNEL_BUILD_DIR="${VIRTME_BUILD_DIR}"
export KERNEL_SRC_DIR="${KERNEL_SRC}"
export PATH="\${PATH}:${VIRTME_TOOLS_SBIN_DIR}"
EOF
# add colours to the prompt if OK
if [ "${INPUT_SELFTESTS_MPTCP_LIB_COLOR_FORCE}" = 1 ]; then
# shellcheck disable=SC2016 # escaped on purpose
local ps1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
echo "PS1='${ps1}'" >> "${BASH_PROFILE}"
fi
if [ -f "${VIRTME_PREPARE_POST}" ]; then
# shellcheck source=/dev/null
source "${VIRTME_PREPARE_POST}"
fi
}
run() {
printinfo "Run the virtme script: manual"
"${VIRTME_RUN}" "${VIRTME_RUN_OPTS[@]}" ${VIRTME_RUN_QEMU_OPTS:+--qemu-opts "${VIRTME_RUN_QEMU_OPTS[@]}"}
}
run_expect() { local mode timestamps_sec_stop no_tap=1
mode="${1}"
EXPECT=1
if is_ci; then
no_tap=0 # we want subtests
timestamps_sec_stop=$(date +%s)
# max - compilation time - before/after script
VIRTME_EXPECT_TEST_TIMEOUT=$((INPUT_CI_TIMEOUT_SEC - (timestamps_sec_stop - TIMESTAMPS_SEC_START) - VIRTME_CI_ESTIMATED_EXTRA_TIME))
else
# disable timeout
VIRTME_EXPECT_TEST_TIMEOUT="${INPUT_EXPECT_TIMEOUT}"
fi
# force a stop in case of panic, but avoid a reboot in "expect" mode
VIRTME_RUN_OPTS+=(--kopt panic=-1)
VIRTME_RUN_QEMU_OPTS+=(-no-reboot)
printinfo "Run the virtme script: expect (timeout: ${VIRTME_EXPECT_TEST_TIMEOUT})"
cat <<EOF > "${VIRTME_SCRIPT}"
#! /bin/bash
if [ "${INPUT_TRACE}" = "1" ]; then
set -x
fi
# useful for virtme-exec-run
TAP_PREFIX="${KERNEL_SRC}/tools/testing/selftests/kselftest/prefix.pl"
RESULTS_DIR="${RESULTS_DIR}"
OUTPUT_VIRTME="${OUTPUT_VIRTME}"
KUNIT_CORE_LOADED=0
MAX_THREADS=${INPUT_MAX_THREADS:-$((INPUT_CPUS * 2))}
export SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES="${INPUT_SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES}"
export SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY="${INPUT_SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY}"
export SELFTESTS_MPTCP_LIB_COLOR_FORCE="${INPUT_SELFTESTS_MPTCP_LIB_COLOR_FORCE}"
export SELFTESTS_MPTCP_LIB_NO_TAP="${no_tap}"
set_max_threads() {
# if QEmu without KVM support
if [[ "${mode}" == *"debug" ]] ||
{ [ "\$(cat /sys/devices/virtual/dmi/id/sys_vendor)" = "QEMU" ] &&
[ "\$(cat /sys/devices/system/clocksource/clocksource0/current_clocksource)" != "kvm-clock" ]; }; then
MAX_THREADS=$((MAX_THREADS / 2)) # avoid too many concurrent work
fi
}
if [ "${GITHUB_ACTIONS}" = "true" ]; then
# \$1: description
log_section_start() {
echo -e "\n::group::${COLOR_YELLOW}\${*}${COLOR_RESET}"
}
log_section_end() {
echo -e "::endgroup::\n"
}
else
# \$1: description
log_section_start() {
echo -e "${COLOR_BLUE}\${*}${COLOR_RESET}"
}
log_section_end() {
true
}