abi-rhel-version.sh

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