The option is at the moment enabled for x86/64. The selection chain
should be
config RETPOLINE
select STACK_VALIDATION if HAVE_STACK_VALIDATION
config x86
select HAVE_STACK_VALIDATION if X86_64
cryptdev-linux:
make[4]: Entering directory '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/cryptodev-linux-cryptodev-linux-1.10'
make -C /store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/linux-4.14.113 M=/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/cryptodev-linux-cryptodev-linux-1.10 ARCH=x86 CROSS_COMPILE=x86_64-openwrt-linux-musl- modules
make[5]: Entering directory '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/linux-4.14.113'
make[6]: *** No rule to make target '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/cryptodev-linux-cryptodev-linux-1.10/ioctl.o', needed by '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/cryptodev-linux-cryptodev-linux-1.10/cryptodev.o'. Stop.
Makefile:1533: recipe for target '_module_/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/cryptodev-linux-cryptodev-linux-1.10' failed
Open vSwitch intree kmods
make[7]: Entering directory '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/openvswitch-2.11.0/datapath/linux'
make -C /store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/linux-4.14.111 ARCH=x86 M=/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/openvswitch-2.11.0/datapath/linux modules
make[8]: Entering directory '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/linux-4.14.111'
make[9]: *** No rule to make target 'tools/objtool/objtool', needed by '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/openvswitch-2.11.0/datapath/linux/actions.o'. Stop.
Makefile:1533: recipe for target '_module_/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/openvswitch-2.11.0/datapath/linux' failed
make[8]: *** [_module_/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/openvswitch-2.11.0/datapath/linux] Error 2
make[8]: Leaving directory '/store/buildbot/slave/x86_64/build/sdk/build_dir/target-x86_64_musl/linux-x86_64/linux-4.14.111'
Reference: builddeb: include objtool binary in headers package, https://patchwork.kernel.org/patch/9014071/
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>