selftests: Pass VMLINUX_BTF to runqslower Makefile
Add a VMLINUX_BTF variable with the locally-built path when calling the runqslower Makefile from selftests. This makes sure a simple 'make' invocation in the selftests dir works even when there is no BTF information for the running kernel. Do a wildcard expansion and include the same paths for BTF for the running kernel as in the runqslower Makefile, to make it possible to build selftests without having a vmlinux in the local tree. Also fix the make invocation to use $(OUTPUT)/tools as the destination directory instead of $(CURDIR)/tools. Fixes: 3a0d3092 ("selftests/bpf: Build runqslower from selftests") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/157952560344.1683545.2723631988771664417.stgit@toke.dk
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