Jiri Benc 4967ae9ab4 selftests, bpf: Fix makefile dependencies on libbpf ... [ Upstream commit d888eaac4f ] When building bpf selftest with make -j, I'm randomly getting build failures such as this one: In file included from progs/bpf_flow.c:19: [...]/tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h:11:10: fatal error: 'bpf_helper_defs.h' file not found #include "bpf_helper_defs.h" ^~~~~~~~~~~~~~~~~~~ The file that fails the build varies between runs but it's always in the progs/ subdir. The reason is a missing make dependency on libbpf for the .o files in progs/. There was a dependency before commit 3ac2e20fba but that commit removed it to prevent unneeded rebuilds. However, that only works if libbpf has been built already; the 'wildcard' prerequisite does not trigger when there's no bpf_helper_defs.h generated yet. Keep the libbpf as an order-only prerequisite to satisfy both goals. It is always built before the progs/ objects but it does not trigger unnecessary rebuilds by itself. Fixes: 3ac2e20fba ("selftests/bpf: BPF object files should depend only on libbpf headers") Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/ee84ab66436fba05a197f952af23c98d90eb6243.1632758415.git.jbenc@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-10-06 15:55:55 +02:00
..
fault-injection
ktest	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
kunit	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
nvdimm	device-dax: add dis-contiguous resource support	2020-10-13 18:38:28 -07:00
radix-tree	idr test suite: Create anchor before launching throbber	2021-04-16 11:43:21 +02:00
scatterlist	tools/testing/scatterlist: Fix test to compile and run	2020-11-17 20:02:20 -04:00
selftests	selftests, bpf: Fix makefile dependencies on libbpf	2021-10-06 15:55:55 +02:00
vsock