This manpage patch relates to the addition of the
PERF_EVENT_IOC_SET_BPF ioctl in the following commit:
commit 2541517c32be2531e0da59dfd7efc1ce844644f5
Author: Alexei Starovoitov <a...@plumgrid.com>
tracing, perf: Implement BPF programs attached to kprobes
Signed-off-by: Alexei Starovoitov <a...@plumgrid.com>
Reviewed-by: Steven Rostedt <rost...@goodmis.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <a...@infradead.org>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Daniel Borkmann <dan...@iogearbox.net>
Cc: David S. Miller <da...@davemloft.net>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Peter Zijlstra <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/1427312966-8434-4-git-send-email-...@plumgrid.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Vince Weaver <vincent.wea...@maine.edu>
diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index a6b90ec..09eda9a 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -2570,6 +2570,19 @@ This returns the event ID value for the given event file
descriptor.
The argument is a pointer to a 64-bit unsigned integer
to hold the result.
+.TP
+.BR PERF_EVENT_IOC_SET_BPF " (since Linux 4.1)"
+.\" commit 2541517c32be2531e0da59dfd7efc1ce844644f5
+This allows attaching a Berkeley Packet Filter (BPF)
+program to an existing kprobe tracepoint event.
+You need
+.B CAP_SYS_ADMIN
+privileges to use this ioctl.
+
+The argument is a BPF program file descriptor that was created by
+a previous
+.BR bpf (2)
+system call.
.SS Using prctl
A process can enable or disable all the event groups that are
attached to it using the
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