diff options
| author | Eduard Zingerman <eddyz87@gmail.com> | 2024-06-13 10:50:10 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-06-17 14:38:31 -0700 |
| commit | c86f180ffc993975fed5907a869fc9b1555d0cfb (patch) | |
| tree | 1c5545c9dc0b385fc326588e4f247f6ba830cc8f /tools/testing/selftests/bpf/prog_tests/bpf_iter.c | |
| parent | affdeb50616b190c3236cc2bf116e1b931a43be2 (diff) | |
libbpf: Make btf_parse_elf process .BTF.base transparently
Update btf_parse_elf() to check if .BTF.base section is present.
The logic is as follows:
if .BTF.base section exists:
distilled_base := btf_new(.BTF.base)
if distilled_base:
btf := btf_new(.BTF, .base_btf=distilled_base)
if base_btf:
btf_relocate(btf, base_btf)
else:
btf := btf_new(.BTF)
return btf
In other words:
- if .BTF.base section exists, load BTF from it and use it as a base
for .BTF load;
- if base_btf is specified and .BTF.base section exist, relocate newly
loaded .BTF against base_btf.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240613095014.357981-6-alan.maguire@oracle.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/bpf_iter.c')
0 files changed, 0 insertions, 0 deletions