Fix: debian kernel version parsing

[lttng-modules.git] / abi-debian-version.sh

diff --git a/abi-debian-version.sh b/abi-debian-version.sh
index 310d6a802fbc228609d81f61daa62d4a702c4d85..36da2129dabf84f26eee8c7f071da7cb0a19b56f 100755 (executable)
--- a/abi-debian-version.sh
+++ b/abi-debian-version.sh
@@ -12,24 +12,26 @@ fi
 
 # Assuming KPATH is the target kernel headers directory
 DEB_PACKAGE_VERSION=$(sed -rn 's/^#define LINUX_PACKAGE_ID " Debian (.*)"/\1/p' ${KPATH}/include/generated/package.h)
+
 # Ignore backports part
 DEB_PACKAGE_VERSION=$(echo ${DEB_PACKAGE_VERSION} | sed -r 's/~(bpo|deb).*//')
+
+# ckt (Canonical Kernel Team) kernels were used for a while during the jessie
+# cycle, their versionning is a bit different. They track the upstream vanilla
+# stable updates but they don't update the minor version number and instead add
+# an additionnal -cktX. They were all 3.16.7-cktX and after a while the version
+# switched back to upstream style at 3.16.36.
+
 # Get -ckt update number, if present
 KERNEL_CKT_UPDATE=$(echo ${DEB_PACKAGE_VERSION} | sed -rn 's/^[0-9]+\.[0-9]+\.[0-9]+-ckt([0-9]+).*/\1/p')
-
-# Only care about the rest if it is a -ckt kernel, making sure we do not
-# clash with older Debian kernels (e.g. Debian 3.2.65-1+deb7u2).
-if [ -z "${KERNEL_CKT_UPDATE}" ]; then
-       echo 0
-       exit 0
-fi
+test -n "${KERNEL_CKT_UPDATE}" || KERNEL_CKT_UPDATE=0
 
 # Get package revision
 DEB_PACKAGE_REVISION=$(echo ${DEB_PACKAGE_VERSION} | sed -r 's/.*-([^-]+)$/\1/')
 # Get non-sec update number
 DEB_PACKAGE_REVISION_BASE=$(echo ${DEB_PACKAGE_REVISION} | sed -r 's/^([0-9]+).*/\1/')
 # Get security update number, if present
-DEB_PACKAGE_REVISION_SECURITY=$(echo ${DEB_PACKAGE_REVISION} | sed -rn 's/.*\+(squeeze|deb[0-9])+u([0-9]+)$/\1/p')
+DEB_PACKAGE_REVISION_SECURITY=$(echo ${DEB_PACKAGE_REVISION} | sed -rn 's/.*\+(squeeze|deb[0-9]+)+u([0-9]+)$/\2/p')
 test -n "${DEB_PACKAGE_REVISION_SECURITY}" || DEB_PACKAGE_REVISION_SECURITY=0
 # Combine all update numbers into one
 DEB_API_VERSION=$((KERNEL_CKT_UPDATE * 10000 + DEB_PACKAGE_REVISION_BASE * 100 + DEB_PACKAGE_REVISION_SECURITY))