Song Liu 5d99cb2c86 bpf: Fail PERF_EVENT_IOC_SET_BPF when bpf_get_[stack|stackid] cannot work ... bpf_get_[stack|stackid] on perf_events with precise_ip uses callchain attached to perf_sample_data. If this callchain is not presented, do not allow attaching BPF program that calls bpf_get_[stack|stackid] to this event. In the error case, -EPROTO is returned so that libbpf can identify this error and print proper hint message. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200723180648.1429892-3-songliubraving@fb.com		2020-07-25 20:16:34 -07:00
..
callchain.c
core.c	bpf: Fail PERF_EVENT_IOC_SET_BPF when bpf_get_[stack|stackid] cannot work	2020-07-25 20:16:34 -07:00
hw_breakpoint.c
internal.h
Makefile
ring_buffer.c
uprobes.c