This manpage patch relates to the addition of the
PERF_EVENT_IOC_SET_BPF ioctl in the following commit:
commit 2541517c32be2531e0da59dfd7efc1ce844644f5
Author: Alexei Starovoitov <[email protected]>
tracing, perf: Implement BPF programs attached to kprobes
Signed-off-by: Alexei Starovoitov <[email protected]>
Reviewed-by: Steven Rostedt <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link:
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Vince Weaver <[email protected]>
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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