From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE405C433F5 for ; Tue, 28 Sep 2021 09:54:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCD64610A2 for ; Tue, 28 Sep 2021 09:54:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239996AbhI1Jzp (ORCPT ); Tue, 28 Sep 2021 05:55:45 -0400 Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]:41458 "EHLO out30-133.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239840AbhI1Jzp (ORCPT ); Tue, 28 Sep 2021 05:55:45 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R531e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=chengshuyi@linux.alibaba.com;NM=1;PH=DS;RN=1;SR=0;TI=SMTPD_---0Upw1fcb_1632822844; Received: from B-39YZML7H-2200.local(mailfrom:chengshuyi@linux.alibaba.com fp:SMTPD_---0Upw1fcb_1632822844) by smtp.aliyun-inc.com(127.0.0.1); Tue, 28 Sep 2021 17:54:04 +0800 From: Shuyi Cheng Subject: How to attach a single bpf_program multiple times? To: bpf@vger.kernel.org Message-ID: Date: Tue, 28 Sep 2021 17:54:04 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Hi, everyone! When the ebpf program is the same, but attach to a different kprobe function, I have to recompile the entire program. If the kprobe function of bpf_program attach can be specified dynamically, then there is no need to modify the original program. Thanks!