diff options
| author | Yonghong Song <[email protected]> | 2018-11-21 11:22:42 -0800 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2018-11-21 22:22:17 +0100 |
| commit | 462c124c590fe633564192dbfa26e99af788a67c (patch) | |
| tree | 220411837f9cd15fc51a8de1eef1b104e85c526a /tools/lib/bpf/test_libbpf.cpp | |
| parent | f6161a8f3036caa45f225486be39783e99e0fa29 (diff) | |
bpf: fix a libbpf loader issue
Commit 2993e0515bb4 ("tools/bpf: add support to read .BTF.ext sections")
added support to read .BTF.ext sections from an object file, create
and pass prog_btf_fd and func_info to the kernel.
The program btf_fd (prog->btf_fd) is initialized to be -1 to please
zclose so we do not need special handling dur prog close.
Passing -1 to the kernel, however, will cause loading error.
Passing btf_fd 0 to the kernel if prog->btf_fd is invalid
fixed the problem.
Fixes: 2993e0515bb4 ("tools/bpf: add support to read .BTF.ext sections")
Reported-by: Andrey Ignatov <[email protected]>
Reported-by: Emre Cantimur <[email protected]>
Tested-by: Andrey Ignatov <[email protected]>
Signed-off-by: Yonghong Song <[email protected]>
Acked-by: Martin KaFai Lau <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Diffstat (limited to 'tools/lib/bpf/test_libbpf.cpp')
0 files changed, 0 insertions, 0 deletions