Messages in this thread | | | From | He Kuang <> | Subject | [RFC PATCH v5 0/3] Make eBPF programs output data to perf | Date | Tue, 14 Jul 2015 01:59:28 +0000 |
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Hi,
Previous patch v4 url: http://thread.gmane.org/gmane.linux.kernel/1993353
This version we output bpf trace events in a hex array, the results for three u64 integers in previous sample changed to this:
dd 1042 [000] 1296.122951: bpf:bpf_output_data: 7a ca aa c6 2d 01 00 00 95 87 ec ca 2d 01 00 00 1b bd 41 04 00 00 00 00
Users can interpret their own formats and get the result:
last=0x12dc6aaca7a, cur=0x12dcaec8795, del=0x441bd1b
v3-v4: - Change u64 array in trace event to u8. - Remove misleading 'perf event' in subject.
Thank you.
He Kuang (3): tracing/events: Fix wrong sample output by storing array length instead of size tools lib traceevent: Add function to get dynamic arrays length bpf: Introduce function for outputing trace event data
include/trace/events/bpf.h | 30 +++++++++++++ include/trace/trace_events.h | 5 ++- include/uapi/linux/bpf.h | 7 +++ kernel/trace/bpf_trace.c | 23 ++++++++++ samples/bpf/bpf_helpers.h | 2 + tools/lib/traceevent/event-parse.c | 52 ++++++++++++++++++++++ tools/lib/traceevent/event-parse.h | 1 + .../util/scripting-engines/trace-event-python.c | 1 + 8 files changed, 119 insertions(+), 2 deletions(-) create mode 100644 include/trace/events/bpf.h
-- 1.8.5.2
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