scripts/abi-debian-version.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
   3
   4 # First argument is the path to the kernel headers.
   5 KPATH="$1"
   6
   7 if [ ! -f "${KPATH}/include/generated/package.h" ]; then
   8         echo 0
   9         exit 0
  10 fi
  11
  12 # Debian snippet courtesy of Ben Hutchings
  13
  14 # Assuming KPATH is the target kernel headers directory
  15 DEB_PACKAGE_VERSION=$(sed -rn 's/^#define LINUX_PACKAGE_ID " Debian (.*)"/\1/p' "${KPATH}/include/generated/package.h")
  16
  17 # Ignore backports part
  18 DEB_PACKAGE_VERSION=$(echo "${DEB_PACKAGE_VERSION}" | sed -r 's/~(bpo|deb).*//')
  19
  20 # ckt (Canonical Kernel Team) kernels were used for a while during the jessie
  21 # cycle, their versionning is a bit different. They track the upstream vanilla
  22 # stable updates but they don't update the minor version number and instead add
  23 # an additionnal -cktX. They were all 3.16.7-cktX and after a while the version
  24 # switched back to upstream style at 3.16.36.
  25
  26 # Get -ckt update number, if present
  27 KERNEL_CKT_UPDATE=$(echo "${DEB_PACKAGE_VERSION}" | sed -rn 's/^[0-9]+\.[0-9]+\.[0-9]+-ckt([0-9]+).*/\1/p')
  28 test -n "${KERNEL_CKT_UPDATE}" || KERNEL_CKT_UPDATE=0
  29
  30 # Get package revision
  31 DEB_PACKAGE_REVISION=$(echo "${DEB_PACKAGE_VERSION}" | sed -r 's/.*-([^-]+)$/\1/')
  32 # Get non-sec update number
  33 DEB_PACKAGE_REVISION_BASE=$(echo "${DEB_PACKAGE_REVISION}" | sed -r 's/^([0-9]+).*/\1/')
  34 # Get security update number, if present
  35 DEB_PACKAGE_REVISION_SECURITY=$(echo "${DEB_PACKAGE_REVISION}" | sed -rn 's/.*\+(squeeze|deb[0-9]+)+u([0-9]+)$/\2/p')
  36 test -n "${DEB_PACKAGE_REVISION_SECURITY}" || DEB_PACKAGE_REVISION_SECURITY=0
  37 # Combine all update numbers into one
  38 DEB_API_VERSION=$((KERNEL_CKT_UPDATE * 10000 + DEB_PACKAGE_REVISION_BASE * 100 + DEB_PACKAGE_REVISION_SECURITY))
  39
  40 echo ${DEB_API_VERSION}