It's pretty common for applications to want to parse raw (binary) BTF data from file, as opposed to parsing it from ELF sections. It's also pretty common for tools to not care whether given file is ELF or raw BTF format. This patch series exposes internal raw BTF parsing API and adds generic variant of BTF parsing, which will efficiently determine the format of a given fail and will parse BTF appropriately. Patches #2 and #3 removes re-implementations of such APIs from bpftool and resolve_btfids tools. Andrii Nakryiko (3): libbpf: add btf__parse_raw() and generic btf__parse() APIs tools/bpftool: use libbpf's btf__parse() API for parsing BTF from file tools/resolve_btfids: use libbpf's btf__parse() API tools/bpf/bpftool/btf.c | 54 +------------ tools/bpf/resolve_btfids/.gitignore | 4 + tools/bpf/resolve_btfids/main.c | 58 +------------- tools/lib/bpf/btf.c | 114 +++++++++++++++++++--------- tools/lib/bpf/btf.h | 5 +- tools/lib/bpf/libbpf.map | 2 + 6 files changed, 89 insertions(+), 148 deletions(-) create mode 100644 tools/bpf/resolve_btfids/.gitignore -- 2.24.1
