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| author | Yonghong Song | 2019-02-02 01:14:15 +0100 |
|---|---|---|
| committer | Alexei Starovoitov | 2019-02-04 18:40:58 +0100 |
| commit | 9d100a19ffa519b17a0e998918337da5386e47fb (patch) | |
| tree | 33ba27812e8abc05913c8f57b654e30f1e1e1cd6 /tools/testing/selftests/bpf/test_btf.c | |
| parent | tools/bpf: move libbpf pr_* debug print functions to headers (diff) | |
| download | kernel-qcow2-linux-9d100a19ffa519b17a0e998918337da5386e47fb.tar.gz kernel-qcow2-linux-9d100a19ffa519b17a0e998918337da5386e47fb.tar.xz kernel-qcow2-linux-9d100a19ffa519b17a0e998918337da5386e47fb.zip | |
tools/bpf: print out btf log at LIBBPF_WARN level
Currently, the btf log is allocated and printed out in case
of error at LIBBPF_DEBUG level.
Such logs from kernel are very important for debugging.
For example, bpf syscall BPF_PROG_LOAD command can get
verifier logs back to user space. In function load_program()
of libbpf.c, the log buffer is allocated unconditionally
and printed out at pr_warning() level.
Let us do the similar thing here for btf. Allocate buffer
unconditionally and print out error logs at pr_warning() level.
This can reduce one global function and
optimize for common situations where pr_warning()
is activated either by default or by user supplied
debug output function.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/test_btf.c')
0 files changed, 0 insertions, 0 deletions