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(parent: b239ec2) | patch
libbpf: Prevent loading vmlinux BTF twice
authorAndrii Nakryiko <andriin@fb.com>
Wed, 24 Jun 2020 04:38:05 +0000 (21:38 -0700)
committerDaniel Borkmann <daniel@iogearbox.net>
Wed, 24 Jun 2020 14:08:17 +0000 (16:08 +0200)
commitea054d066a963e503e057a89975680c9019e8f96
treeaed8438045c9eff287d4c183bd90f0ab59a76af2tree | snapshot
parentb239ec28c188337d622b3440e0730fd187fc2e3acommit | diff
libbpf: Prevent loading vmlinux BTF twice

Prevent loading/parsing vmlinux BTF twice in some cases: for CO-RE relocations
and for BTF-aware hooks (tp_btf, fentry/fexit, etc).

Fixes: 9ee00b480ff4 ("libbpf: Load btf_vmlinux only once per object.")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200624043805.1794620-1-andriin@fb.com
tools/lib/bpf/libbpf.c diff | blob | history
Linux Kernel Source Tree.