tree be96b11f4bdd8494e6c1f2f44fcb7a725237ecc4
parent 18f4fccbf314fdb07d276f4cd3eaf53f1825550d
author Kumar Kartikeya Dwivedi <memxor@gmail.com> 1633137477 +0530
committer Alexei Starovoitov <ast@kernel.org> 1633478862 -0700

bpf: selftests: Add selftests for module kfunc support

This adds selftests that tests the success and failure path for modules
kfuncs (in presence of invalid kfunc calls) for both libbpf and
gen_loader. It also adds a prog_test kfunc_btf_id_list so that we can
add module BTF ID set from bpf_testmod.

This also introduces  a couple of test cases to verifier selftests for
validating whether we get an error or not depending on if invalid kfunc
call remains after elimination of unreachable instructions.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211002011757.311265-10-memxor@gmail.com