scripts/rt-patch-version.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
   3
   4 # First argument is the path to the kernel headers.
   5 KPATH="$1"
   6
   7 VERSIONFILE=""
   8
   9 if [ -f "${KPATH}/localversion-rt" ]; then
  10         VERSIONFILE="${KPATH}/localversion-rt"
  11
  12 elif [ -f "${KPATH}/source/localversion-rt" ]; then
  13         VERSIONFILE="${KPATH}/source/localversion-rt"
  14 else
  15         echo 0
  16         exit 0
  17 fi
  18
  19 RT_PATCH_VERSION=$(sed -rn 's/^-rt([0-9]+)$/\1/p' "${VERSIONFILE}")
  20
  21 if [ "x${RT_PATCH_VERSION}" = "x" ]; then
  22         echo 0
  23         exit 0
  24 fi
  25
  26 echo "${RT_PATCH_VERSION}"