From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753153AbbFYKiS (ORCPT ); Thu, 25 Jun 2015 06:38:18 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:23937 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751692AbbFYKhz (ORCPT ); Thu, 25 Jun 2015 06:37:55 -0400 From: Wang Nan To: , , , , , , , , , , CC: , , , , Subject: [RFC PATCH 0/3] tracing, perf tools: Attach BPF program on uprobe events Date: Thu, 25 Jun 2015 10:37:22 +0000 Message-ID: <1435228645-116055-1-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.197.200] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.558BD9F6.0050,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: a740ec27db922fecc25f6298945ee3b5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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