On Thu, Aug 26, 2021 at 12:40 PM Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > Adding support to load tracing program with new BPF_F_MULTI_FUNC flag, > that allows the program to be loaded without specific function to be > attached to. Are there any benefits to using a new load flag vs having separate expected attach types like FENTRY_MULTI/FEXIT_MULTI? I find load flags a bigger pain to work with compared to expected attach type (and expected attach type should be more apparent in BPF link info, bpftool output, etc). > > Such program will be allowed to be attached to multiple functions > in following patches. > > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> > --- > include/linux/bpf.h | 1 + > include/uapi/linux/bpf.h | 7 +++++++ > kernel/bpf/syscall.c | 35 +++++++++++++++++++++++++++++----- > kernel/bpf/verifier.c | 3 ++- > tools/include/uapi/linux/bpf.h | 7 +++++++ > 5 files changed, 47 insertions(+), 6 deletions(-) > [...]
