linux-kernel - [RFC PATCH 0/3] tracing, perf tools: Attach BPF program on uprobe events

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Date:	Thu, 25 Jun 2015 10:37:22 +0000
From:	Wang Nan <wangnan0@...wei.com>
To:	<acme@...nel.org>, <ast@...mgrid.com>, <brendan.d.gregg@...il.com>,
	<daniel@...earbox.net>, <namhyung@...nel.org>,
	<masami.hiramatsu.pt@...achi.com>, <paulus@...ba.org>,
	<a.p.zijlstra@...llo.nl>, <mingo@...hat.com>, <jolsa@...nel.org>,
	<dsahern@...il.com>
CC:	<linux-kernel@...r.kernel.org>, <lizefan@...wei.com>,
	<hekuang@...wei.com>, <xiakaixu@...wei.com>, <pi3orama@....com>
Subject: [RFC PATCH 0/3] tracing, perf tools: Attach BPF program on uprobe events

This 3 patches demonstrate how to attach BPF programs on uprobe events.
They are based on '[RFC PATCH v8 00/49] perf tools: filtering events
using eBPF programs'.

The first patch fix a bug in perf probe.

The second patch is a kernel side patch, which minimic procedures for kprobe
events processing on uprobe events.

The final patch improve BPF object section name to allow perf probing at
uprobe string.

With this 3 patches perf now can connect user space events and kernel
space events with eBPF maps. I believe some useful things could be done.

Wang Nan (3):
  perf probe: Init symbol as kprobe if any pev is kprobe
  tracing, perf: Implement BPF programs attached to uprobes
  perf tools: Support attach BPF program on uprobe events

 include/linux/ftrace_event.h  |  5 +++
 kernel/events/core.c          |  4 +--
 kernel/trace/trace_uprobe.c   |  5 +++
 tools/perf/util/bpf-loader.c  | 78 +++++++++++++++++++++++++++++++++++++++----
 tools/perf/util/probe-event.c | 15 ++++++++-
 5 files changed, 97 insertions(+), 10 deletions(-)

-- 
1.8.3.4

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