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