Hi, This series adds several options to bpftool to make it print additional information via libbpf or the kernel verifier when attempting to load programs.
A first option is used to select the log level for libbpf, and a second one is used for the verifier level. A third option (with a short name) is added as a shortcut for printing all available information from both components. 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. Also, the flags defined to name the verifier log levels are moved from kernel headers to UAPI headers, in an effort to make it easier to users to pass the value they want. Quentin Monnet (6): tools: bpftool: add --log-libbpf option to get debug info from libbpf tools: bpftool: add --log-all option to print all possible log info libbpf: add bpf_object__load_xattr() API function to pass log_level bpf: make BPF_LOG_* flags available in UAPI header tools: bpf: report latest changes from BPF UAPI header to tools tools: bpftool: add --log-verifier option to print kernel debug logs include/linux/bpf_verifier.h | 3 - include/uapi/linux/bpf.h | 5 + .../bpftool/Documentation/bpftool-prog.rst | 20 ++++ tools/bpf/bpftool/bash-completion/bpftool | 46 +++++++- tools/bpf/bpftool/main.c | 105 ++++++++++++++++-- tools/bpf/bpftool/main.h | 1 + tools/bpf/bpftool/prog.c | 24 ++-- tools/include/uapi/linux/bpf.h | 5 + tools/lib/bpf/libbpf.c | 20 +++- tools/lib/bpf/libbpf.h | 6 + tools/lib/bpf/libbpf.map | 1 + 11 files changed, 211 insertions(+), 25 deletions(-) -- 2.17.1
