Dear Linux folks,
Playing with rcutorture
(`tools/testing/selftests/rcutorture/bin/torture.sh`), a Linux kernel
build failed, because the script sets and exports the environment
variable `KVM`. I was able to reproduce that manually (on x86_64):
$ make defconfig
$ scripts/config -m KVM
$ scripts/config -m KVM_INTEL
$ scripts/config -d KVM_AMD
$ scripts/config -d KVM_XEN
$ scripts/config -d KVM_MMU_AUDIT
$ export KVM=XXX
$ make arch/x86/kvm/kvm.o
[…]
LINK /dev/shm/linux-kvm/tools/objtool/objtool
make[2]: *** No rule to make target 'arch/x86/kvm/XXX/kvm_main.o',
needed by 'arch/x86/kvm/kvm.o'. Stop.
make[1]: *** [scripts/Makefile.build:550: arch/x86/kvm] Error 2
make: *** [Makefile:1831: arch/x86] Error 2
The directory `arch/x86/kvm/XXX` is created somehow.
Is that expected? Do you know what is going on? I wasn’t able to
reproduce this with other variables like `SND_HDA` for example.
Kind regards,
Paul
