scripts/abi-rhel-version.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
   3 # SPDX-FileCopyrightText: 2016-2018 EfficiOS Inc.
   4
   5 # First argument is the path to the kernel headers.
   6 KPATH="$1"
   7
   8 if [ ! -f "${KPATH}/include/generated/uapi/linux/version.h" ]; then
   9         echo 0
  10         exit 0
  11 fi
  12
  13 # Assuming KPATH is the target kernel headers directory
  14 RHEL_RELEASE=$(sed -rn 's/^#define RHEL_RELEASE "(.*)"/\1/p' "${KPATH}/include/generated/uapi/linux/version.h")
  15
  16 RHEL_RELEASE_MAJOR=$(echo "${RHEL_RELEASE}" | sed -r 's/^([0-9]+)\.([0-9]+)\.([0-9]+)/\1/')
  17 RHEL_RELEASE_MINOR=$(echo "${RHEL_RELEASE}" | sed -r 's/^([0-9]+)\.([0-9]+)\.([0-9]+)/\2/')
  18 RHEL_RELEASE_PATCH=$(echo "${RHEL_RELEASE}" | sed -r 's/^([0-9]+)\.([0-9]+)\.([0-9]+)/\3/')
  19
  20 # Combine all update numbers into one
  21 RHEL_API_VERSION=$((RHEL_RELEASE_MAJOR * 10000 + RHEL_RELEASE_MINOR * 100 + RHEL_RELEASE_PATCH))
  22
  23 echo ${RHEL_API_VERSION}