On Fri, Apr 8, 2022 at 11:14 AM Andrii Nakryiko <andrii@xxxxxxxxxx> wrote: > > Fix the issue accidentally discovered during libbpf USDT support testing. > Libbpf overzealously complained about CO-RE relocations belonging to the code > of a __weak subprog that got overriden by another instance of that function. > > Fix the issue fixed, return back to __weak __hidden annotation for USDT "With the issue fixed", sigh... > BPF-side APIs. > > And add CO-RE relos to linked_funcs selftest to ensure such combo keeps > working going forward. > > Andrii Nakryiko (3): > libbpf: don't error out on CO-RE relos for overriden weak subprogs > libbpf: use weak hidden modifier for USDT BPF-side API functions > selftests/bpf: add CO-RE relos into linked_funcs selftests > > tools/lib/bpf/libbpf.c | 15 +++++++++++---- > tools/lib/bpf/usdt.bpf.h | 6 +++--- > tools/testing/selftests/bpf/progs/linked_funcs1.c | 8 ++++++++ > tools/testing/selftests/bpf/progs/linked_funcs2.c | 8 ++++++++ > 4 files changed, 30 insertions(+), 7 deletions(-) > > -- > 2.30.2 >
