[PATCH 0/2] Fix compilation of net selftests

[Stefan Bader]

BugLink: https://bugs.launchpad.net/bugs/1829812

In cf651d7007 "selftests/bpf: skip verifier tests for unsupported
program types" (v5.0.7) the selftests start to use a function which
was not backported, yet.

The following 2 patches which were cherry-picked (the second one
with -C2) from upstream add the required capabilities and probes:

Quentin Monnet (2):
  tools: bpftool: add basic probe capability, probe syscall availability
  tools: bpftool: add probes for eBPF program types

It is somewhat large but most is additions and all to tools sub-
directory which is not part of the kernel.

-Stefan

 .../bpftool/Documentation/bpftool-cgroup.rst  |   1 +
 .../bpftool/Documentation/bpftool-feature.rst |  60 ++++++
 .../bpf/bpftool/Documentation/bpftool-map.rst |   1 +
 .../bpf/bpftool/Documentation/bpftool-net.rst |   1 +
 .../bpftool/Documentation/bpftool-perf.rst    |   1 +
 .../bpftool/Documentation/bpftool-prog.rst    |   1 +
 tools/bpf/bpftool/Documentation/bpftool.rst   |   1 +
 tools/bpf/bpftool/feature.c                   | 177 ++++++++++++++++++
 tools/bpf/bpftool/main.c                      |   3 +-
 tools/bpf/bpftool/main.h                      |   1 +
 tools/lib/bpf/Build                           |   2 +-
 tools/lib/bpf/libbpf.h                        |  11 ++
 tools/lib/bpf/libbpf.map                      |   5 +
 tools/lib/bpf/libbpf_probes.c                 |  95 ++++++++++
 14 files changed, 358 insertions(+), 2 deletions(-)
 create mode 100644 tools/bpf/bpftool/Documentation/bpftool-feature.rst
 create mode 100644 tools/bpf/bpftool/feature.c
 create mode 100644 tools/lib/bpf/libbpf_probes.c

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2.17.1