exit 0
fi
+ if [ "${cross_arch}" = "arm64" ] && verlt "${kversion}" "3.7"; then
+ echo "ARM64 support was added as of v3.7. Don't try to build it."
+ exit 0
+ fi
+
+ if [ "${cross_arch}" = "arm64" ] && verlt "${kversion}" "3.18"; then
+ echo "lttng-modules requires gcc >= 5.1 for ARM64 due to compiler bugs in gcc."
+ echo "gcc-5 support was added to the kernel as of v3.18. Don't this to build it."
+ exit 0
+ fi
+
if { verlt "$kversion" "4.4"; }; then
# Force gcc-4.8 for kernels before 4.4
selected_cc='gcc-4.8'
+ # Due to compiler bugs in gcc on arm64, lttng-modules disallows
+ # compilation with gcc < 5.1.
+ if [[ "${cross_arch}" == "arm64" ]] ; then
+ selected_cc='gcc-5.5'
+ export PATH="${PATH:-}:/usr/local/gcc5.5/bin"
+ export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:-}:/usr/local/gcc5.5/lib"
+ fi
selected_cc_version=$(echo "${selected_cc}" | cut -d'-' -f2)
else
for cc in $(list_gccs) ; do
_KCPPFLAGS=()
_HOSTCFLAGS=()
- if [ "$selected_cc" != "gcc-4.8" ]; then
+ if { vergte "$selected_cc_version" "6"; }; then
# Older kernel Makefiles do not expect the compiler to default to PIE
_KAFLAGS+=(-fno-pie)
_KCFLAGS+=(