Standardize commonly used bpf enum names by introducing helper methods to
libbpf.
When applications require enum to string mapping the related code is
copy-pasted from bpftool. It hardens maintenance, e.g. when new enum
values are added.
Patches 0001-0003 introduce __MAX_BPF_PROG_TYPE and __MAX_BPF_MAP_TYPE enum
type.
Patches 0004-0006 introduce helpers methods
libbpf_str_from_(prog|map|attach)_type and
libbpf_(prog|map|attach)_type_from_str.
Patches 0007-0008 extend and rename test_section_names test.
Patches 0009-0010 introduce the helpers to bpftool.
An alternative for adding __MAX_BPF_(PROG|MAP)_TYPE is using an erroneous
result of bpf_(prog|map|attach)_type_(from|to)_str as an indicator of
loop bound. The disadvantages are: tests won't fail when a string name
is not provided for a new enum value; whoever wants to loop over enum
values should be aware about this side feature of newly introduced helpers.
Julia Kartseva (10):
bpf: introduce __MAX_BPF_PROG_TYPE and __MAX_BPF_MAP_TYPE enum values
tools/bpf: sync bpf.h to tools/
tools/bpf: handle __MAX_BPF_(PROG|MAP)_TYPE in switch statements
tools/bpf: add libbpf_prog_type_(from|to)_str helpers
tools/bpf: add libbpf_map_type_(from|to)_str helpers
tools/bpf: add libbpf_attach_type_(from|to)_str
selftests/bpf: extend test_section_names with type_(from|to)_str
selftests/bpf: rename test_section_names to
test_section_and_type_names
tools/bpftool: use libbpf_(prog|map)_type_to_str helpers
tools/bpftool: use libbpf_attach_type_to_str helper
include/uapi/linux/bpf.h | 6 +
tools/bpf/bpftool/cgroup.c | 60 +--
tools/bpf/bpftool/feature.c | 47 ++-
tools/bpf/bpftool/main.h | 33 --
tools/bpf/bpftool/map.c | 80 +---
tools/bpf/bpftool/prog.c | 31 +-
tools/include/uapi/linux/bpf.h | 6 +
tools/lib/bpf/libbpf.c | 153 +++++++
tools/lib/bpf/libbpf.h | 17 +
tools/lib/bpf/libbpf.map | 6 +
tools/lib/bpf/libbpf_probes.c | 2 +
tools/testing/selftests/bpf/Makefile | 2 +-
.../bpf/test_section_and_type_names.c | 378 ++++++++++++++++++
.../selftests/bpf/test_section_names.c | 233 -----------
14 files changed, 673 insertions(+), 381 deletions(-)
create mode 100644 tools/testing/selftests/bpf/test_section_and_type_names.c
delete mode 100644 tools/testing/selftests/bpf/test_section_names.c
--
2.17.1
