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Diffstat (limited to '')
-rwxr-xr-x | packaging/check-kernel-config.sh | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/packaging/check-kernel-config.sh b/packaging/check-kernel-config.sh new file mode 100755 index 00000000..515259c1 --- /dev/null +++ b/packaging/check-kernel-config.sh @@ -0,0 +1,76 @@ +#!/usr/bin/env bash + +get_kernel_version() { + r="$(uname -r | cut -f 1 -d '-')" + + read -r -a p <<< "$(echo "${r}" | tr '.' ' ')" + + printf "%03d%03d%03d" "${p[0]}" "${p[1]}" "${p[2]}" +} + +get_rh_version() { + if [ ! -f /etc/redhat-release ]; then + printf "000000000" + return + fi + + r="$(cut -f 4 -d ' ' < /etc/redhat-release)" + + read -r -a p <<< "$(echo "${r}" | tr '.' ' ')" + + printf "%03d%03d%03d" "${p[0]}" "${p[1]}" "${p[2]}" +} + +if [ "$(uname -s)" != "Linux" ]; then + echo >&2 "This does not appear to be a Linux system." + exit 1 +fi + +KERNEL_VERSION="$(uname -r)" + +if [ "$(get_kernel_version)" -lt 004014000 ] && [ "$(get_rh_version)" -lt 0070061810 ]; then + echo >&2 "WARNING: Your kernel appears to be older than 4.11 or you are using RH version older than 7.6.1810. This may still work in some cases, but probably won't." +fi + +CONFIG_PATH="" +MODULE_LOADED="" + +if modprobe configs 2> /dev/null; then + MODULE_LOADED=1 +fi + +if [ -r /proc/config.gz ]; then + CONFIG_PATH="/proc/config.gz" +elif [ -r "/lib/modules/${KERNEL_VERSION}/source/.config" ]; then + CONFIG_PATH="/lib/modules/${KERNEL_VERSION}/source/.config" +elif [ -r "/lib/modules/${KERNEL_VERSION}.x86_64/source/.config" ]; then + CONFIG_PATH="/lib/modules/${KERNEL_VERSION}.x86_64/source/.config" +elif [ -n "$(find /boot -name "config-${KERNEL_VERSION}*")" ]; then + CONFIG_PATH="$(find /boot -name "config-${KERNEL_VERSION}*" | head -n 1)" +fi + +if [ -n "${CONFIG_PATH}" ]; then + GREP='grep' + CAT='cat' + + if echo "${CONFIG_PATH}" | grep -q '.gz'; then + CAT='zcat' + fi + + REQUIRED_CONFIG="KPROBES KPROBES_ON_FTRACE HAVE_KPROBES BPF BPF_SYSCALL BPF_JIT" + + for required_config in ${REQUIRED_CONFIG}; do + # Fix issue https://github.com/netdata/netdata/issues/14668 + # if ! "${GREP}" -q "CONFIG_${required_config}=y" "${CONFIG_PATH}"; then + if ! { "${CAT}" "${CONFIG_PATH}" | "${GREP}" -q "CONFIG_${required_config}=y" >&2 >/dev/null; } ;then + echo >&2 " Missing Kernel Config: ${required_config}" + exit 1 + fi + done +fi + +if [ -n "${MODULE_LOADED}" ]; then + modprobe -r configs 2> /dev/null || true # Ignore failures from CONFIGS being builtin +fi + +exit 0 |