linux/tools/testing
Kamal Mostafa 1a3449c194 selftests/bpf: Clarify build error if no vmlinux
If Makefile cannot find any of the vmlinux's in its VMLINUX_BTF_PATHS list,
it tries to run btftool incorrectly, with VMLINUX_BTF unset:

    bpftool btf dump file $(VMLINUX_BTF) format c

Such that the keyword 'format' is misinterpreted as the path to vmlinux.
The resulting build error message is fairly cryptic:

      GEN      vmlinux.h
    Error: failed to load BTF from format: No such file or directory

This patch makes the failure reason clearer by yielding this instead:

    Makefile:...: *** Cannot find a vmlinux for VMLINUX_BTF at any of
    "{paths}".  Stop.

Fixes: acbd06206b ("selftests/bpf: Add vmlinux.h selftest exercising tracing of syscalls")
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201215182011.15755-1-kamal@canonical.com
2020-12-16 10:04:34 -08:00
..
fault-injection
ktest ktest.pl: Fix incorrect reboot for grub2bls 2020-11-30 16:29:40 -05:00
kunit kunit: tool: fix extra trailing \n in raw + parsed test output 2020-11-10 13:44:35 -07:00
nvdimm x86, libnvdimm/test: Remove COPY_MC_TEST 2020-10-26 18:08:35 +01:00
radix-tree ida: Free allocated bitmap in error path 2020-10-07 09:11:33 -04:00
scatterlist drm for 5.11-rc1 2020-12-14 11:07:56 -08:00
selftests selftests/bpf: Clarify build error if no vmlinux 2020-12-16 10:04:34 -08:00
vsock