[PATCH bpf-next v2 0/5] libbpf: rename btf__get_from_id() and btf__load() APIs, support split BTF
From: Quentin Monnet <hidden>
Date: 2021-07-21 15:38:14
Also in:
bpf
As part of the effort to move towards a v1.0 for libbpf [0], this set improves some confusing function names related to BTF loading from and to the kernel: - btf__load() becomes btf__load_into_kernel(). - btf__get_from_id becomes btf__load_from_kernel_by_id(). - A new version btf__load_from_kernel_by_id_split() extends the former to add support for split BTF. The old functions are not removed or marked as deprecated yet, there should be in a future libbpf version. The last patch is a trivial change to bpftool to add support for dumping split BTF objects by referencing them by their id (and not only by their BTF path). [0] https://github.com/libbpf/libbpf/wiki/Libbpf:-the-road-to-v1.0#btfh-apis v2: - Remove deprecation marking of legacy functions (patch 4/6 from v1). - Make btf__load_from_kernel_by_id{,_split}() return the btf struct. - Add new functions to v0.5.0 API (and not v0.6.0). Quentin Monnet (5): libbpf: rename btf__load() as btf__load_into_kernel() libbpf: rename btf__get_from_id() as btf__load_from_kernel_by_id() tools: replace btf__get_from_id() with btf__load_from_kernel_by_id() libbpf: add split BTF support for btf__load_from_kernel_by_id() tools: bpftool: support dumping split BTF by id tools/bpf/bpftool/btf.c | 8 ++--- tools/bpf/bpftool/btf_dumper.c | 6 ++-- tools/bpf/bpftool/map.c | 16 +++++----- tools/bpf/bpftool/prog.c | 29 +++++++++++------ tools/lib/bpf/btf.c | 33 ++++++++++++++------ tools/lib/bpf/btf.h | 4 +++ tools/lib/bpf/libbpf.c | 7 +++-- tools/lib/bpf/libbpf.map | 3 ++ tools/perf/util/bpf-event.c | 11 ++++--- tools/perf/util/bpf_counter.c | 12 +++++-- tools/testing/selftests/bpf/prog_tests/btf.c | 4 ++- 11 files changed, 86 insertions(+), 47 deletions(-) -- 2.30.2