On 5/24/19 3:36 AM, Quentin Monnet wrote: > Hi, > This series adds an option to bpftool to make it print additional > information via libbpf and the kernel verifier when attempting to load > programs. > > A new API function is added to libbpf in order to pass the log_level from > bpftool with the bpf_object__* part of the API. > > Options for a finer control over the log levels to use for libbpf and the > verifier could be added in the future, if desired. > > v3: > - Fix and clarify commit logs. > > v2: > - Do not add distinct options for libbpf and verifier logs, just keep the > one that sets all log levels to their maximum. Rename the option. > - Do not offer a way to pick desired log levels. The choice is "use the > option to print all logs" or "stick with the defaults". > - Do not export BPF_LOG_* flags to user header. > - Update all man pages (most bpftool operations use libbpf and may print > libbpf logs). Verifier logs are only used when attempting to load > programs for now, so bpftool-prog.rst and bpftool.rst remain the only > pages updated in that regard. > > Previous discussion available at: > https://lore.kernel.org/bpf/20190523105426.3938-1-quentin.monnet@xxxxxxxxxxxxx/ > https://lore.kernel.org/bpf/20190429095227.9745-1-quentin.monnet@xxxxxxxxxxxxx/ The series looks good to me. Acked-by: Yonghong Song <yhs@xxxxxx> > > Quentin Monnet (3): > tools: bpftool: add -d option to get debug output from libbpf > libbpf: add bpf_object__load_xattr() API function to pass log_level > tools: bpftool: make -d option print debug output from verifier > > .../bpf/bpftool/Documentation/bpftool-btf.rst | 4 +++ > .../bpftool/Documentation/bpftool-cgroup.rst | 4 +++ > .../bpftool/Documentation/bpftool-feature.rst | 4 +++ > .../bpf/bpftool/Documentation/bpftool-map.rst | 4 +++ > .../bpf/bpftool/Documentation/bpftool-net.rst | 4 +++ > .../bpftool/Documentation/bpftool-perf.rst | 4 +++ > .../bpftool/Documentation/bpftool-prog.rst | 5 ++++ > tools/bpf/bpftool/Documentation/bpftool.rst | 4 +++ > tools/bpf/bpftool/bash-completion/bpftool | 2 +- > tools/bpf/bpftool/main.c | 16 ++++++++++- > tools/bpf/bpftool/main.h | 1 + > tools/bpf/bpftool/prog.c | 27 ++++++++++++------- > tools/lib/bpf/Makefile | 2 +- > tools/lib/bpf/libbpf.c | 20 +++++++++++--- > tools/lib/bpf/libbpf.h | 6 +++++ > tools/lib/bpf/libbpf.map | 5 ++++ > 16 files changed, 96 insertions(+), 16 deletions(-) >
