Andrii Nakryiko 197afc6314 libbpf: Don't attempt to load unused subprog as an entry-point BPF program ... If BPF code contains unused BPF subprogram and there are no other subprogram calls (which can realistically happen in real-world applications given sufficiently smart Clang code optimizations), libbpf will erroneously assume that subprograms are entry-point programs and will attempt to load them with UNSPEC program type. Fix by not relying on subcall instructions and rather detect it based on the structure of BPF object's sections. Fixes: 9a94f277c4 ("tools: libbpf: restore the ability to load programs from .text section") Reported-by: Dmitrii Banshchikov <dbanschikov@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201107000251.256821-1-andrii@kernel.org		2020-11-09 22:15:23 +01:00
..
fault-injection
ktest	Updates for ktest 5.9	2020-08-10 19:16:26 -07:00
kunit	kunit: tools: fix kunit_tool tests for parsing test plans	2020-10-26 13:25:40 -06:00
nvdimm	device-dax: add dis-contiguous resource support	2020-10-13 18:38:28 -07:00
radix-tree	ida: Free allocated bitmap in error path	2020-10-07 09:11:33 -04:00
scatterlist	lib/scatterlist: Add support in dynamic allocation of SG table from pages	2020-10-05 20:45:45 -03:00
selftests	libbpf: Don't attempt to load unused subprog as an entry-point BPF program	2020-11-09 22:15:23 +01:00
vsock