[PATCH bpf-next 0/2] bpftool: Support symbolic map creation flags

[Tianyi Chen]

This series adds comma-separated BPF_F_* names to map create flags,
while retaining base-0 numeric input. It also documents the syntax,
completes names within lists, and tests the resulting kernel map flags
and invalid-input diagnostics.

This addresses the map creation part of:
https://github.com/libbpf/bpftool/issues/57

The series is based on bpf-next and is independent of the ring buffer
and batch-dump series sent alongside it.

Validation:
- Full bpftool build and focused BPF selftests build with LLVM 20.
- All 29 bpftool_map_flags subtests passed in an x86-64 KVM guest
  running Linux 7.3.0-rc1, using a bpftool built with only this series.
- Bash syntax and actual completion candidates checked with and without
  comma in COMP_WORDBREAKS; bpftool-map man page generated successfully.

Only focused BPF tests were run; this does not claim a full BPF selftest
suite run. Strict checkpatch has no errors or checks; its new-file
warning is covered by the existing BPF/selftests MAINTAINERS patterns.


Integration check: these three independent series also applied and built
together with my previously posted recursive map-dump v2 series. The
combined 64 subtests passed with no skips or failures in the same guest.

Tianyi Chen (2):
  bpftool: Accept symbolic map creation flags
  selftests/bpf: Cover symbolic bpftool map creation flags

 .../bpf/bpftool/Documentation/bpftool-map.rst | 13 ++-
 tools/bpf/bpftool/bash-completion/bpftool     | 25 ++++-
 tools/bpf/bpftool/map.c                       | 77 ++++++++++++++-
 .../bpf/prog_tests/bpftool_map_flags.c        | 99 +++++++++++++++++++
 4 files changed, 208 insertions(+), 6 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_map_flags.c

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2.55.0