On Fri, Jan 17, 2020 at 1:28 PM KP Singh <kpsingh@xxxxxxxxxxxx> wrote: > > From: KP Singh <kpsingh@xxxxxxxxxx> > > As more programs (TRACING, STRUCT_OPS, and upcoming LSM) use vmlinux > BTF information, loading the BTF vmlinux information for every program > in an object is sub-optimal. The fix was originally proposed in: > > https://lore.kernel.org/bpf/CAEf4BzZodr3LKJuM7QwD38BiEH02Cc1UbtnGpVkCJ00Mf+V_Qg@xxxxxxxxxxxxxx/ > > The btf_vmlinux is populated in the object if any of the programs in > the object requires it just before the programs are loaded and freed > after the programs finish loading. > > Reported-by: Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> > Reviewed-by: Brendan Jackman <jackmanb@xxxxxxxxxxxx> > Signed-off-by: KP Singh <kpsingh@xxxxxxxxxx> > --- Looks great! Acked-by: Andrii Nakryiko <andriin@xxxxxx> > tools/lib/bpf/libbpf.c | 153 +++++++++++++++++++++++++++-------------- > 1 file changed, 101 insertions(+), 52 deletions(-) > [...]
