# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# Parameters
+arch=${arch:-}
+cross_arch=${cross_arch:-}
+ktag=${ktag:-}
+
+
## FUNCTIONS ##
# Kernel version compare functions
if [ "$outdir" = "." ]; then
koutput=""
else
- koutput="O=\"${outdir}\""
+ koutput="O=${outdir}"
fi
# Generate kernel configuration
- case "$kversion" in
+ case "$ktag" in
Ubuntu*)
+ if [ "${cross_arch}" = "powerpc" ]; then
+ if vergte "$KVERSION" "4.10"; then
+ echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
+ exit 0
+ fi
+ fi
fakeroot debian/rules clean
fakeroot debian/rules genconfigs
cp CONFIGS/"${ubuntu_config}" "${outdir}"/.config
# Debug
#cat "${outdir}"/.config
+ # On powerpc this object is required to link modules
+ if [ "${karch}" = "powerpc" ]; then
+ make arch/powerpc/lib/crtsavres.o CC="$CC" ${koutput}
+ fi
+
+ # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
+ if [ "${karch}" = "arm64" ]; then
+ if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+ make arch/arm64/kernel/ftrace-mod.o CC="$CC" ${koutput}
+ fi
+ fi
+
# Version specific tasks
- case "$kversion" in
+ case "$ktag" in
Ubuntu*)
# Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
- ABINUM="$(echo "$kversion" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
+ ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${outdir}"/include/generated/utsrelease.h
;;
esac
-
- # On powerpc this object is required to link modules
- if [ "${karch}" = "powerpc" ]; then
- make arch/powerpc/lib/crtsavres.o CC="$CC" ${koutput}
- fi
}
kdir="$1"
bdir="$2"
- # Get kernel version from source tree
- cd "${kdir}"
- kversion=$(make kernelversion)
-
# Enter lttng-modules source dir
cd "${LTTSRCDIR}"
# kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
# timekeeping subsystem. We want those build to fail.
- if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
- { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
+ if { vergte "$KVERSION" "3.10" && verlte "$KVERSION" "3.10.13"; } || \
+ { vergte "$KVERSION" "3.11" && verlte "$KVERSION" "3.11.2"; }; then
set +e
# Setup cross compile env if available
-if [ "x${cross_arch:-}" != "x" ]; then
+if [ "x${cross_arch}" != "x" ]; then
case "$cross_arch" in
"armhf")
oldconf_target="olddefconfig"
# Set arch specific values if we are not cross compiling
-elif [ "x${arch:-}" != "x" ]; then
+elif [ "x${arch}" != "x" ]; then
case "$arch" in
"x86-32")
# Enter linux source dir
cd "${LNXSRCDIR}"
+# Get kernel version from source tree
+KVERSION=$(make kernelversion)
+
prepare_lnx_sources "."
# For RT kernels, copy version file
cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LNXHDRDIR}/"
fi
+# On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
+if [ "${karch}" = "arm64" ]; then
+ if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+ cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LNXHDRDIR}/"
+ fi
+fi
+
+# Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
+if [ -f tools/objtool/objtool ]; then
+ cp -a --parents tools/objtool/objtool "${LNXHDRDIR}/"
+fi
+
# Copy modules related stuff, if available
if [ -s Module.symvers ]; then
cp Module.symvers "${LNXHDRDIR}"