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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 750D3C43381 for ; Wed, 27 Feb 2019 13:21:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3FB432133D for ; Wed, 27 Feb 2019 13:21:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730373AbfB0NVw (ORCPT ); Wed, 27 Feb 2019 08:21:52 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46986 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726122AbfB0NVv (ORCPT ); Wed, 27 Feb 2019 08:21:51 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C06D230BDE77; Wed, 27 Feb 2019 13:21:50 +0000 (UTC) Received: from krava (unknown [10.43.17.18]) by smtp.corp.redhat.com (Postfix) with SMTP id A06B15D6B6; Wed, 27 Feb 2019 13:21:48 +0000 (UTC) Date: Wed, 27 Feb 2019 14:21:47 +0100 From: Jiri Olsa To: Song Liu Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, kernel-team@fb.com, peterz@infradead.org, acme@redhat.com, jolsa@kernel.org, namhyung@kernel.org Subject: Re: [PATCH v4 perf,bpf 12/15] perf, bpf: enable annotation of bpf program Message-ID: <20190227132147.GH18893@krava> References: <20190226002019.3748539-1-songliubraving@fb.com> <20190226002019.3748539-13-songliubraving@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190226002019.3748539-13-songliubraving@fb.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Wed, 27 Feb 2019 13:21:50 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 25, 2019 at 04:20:16PM -0800, Song Liu wrote: SNIP > diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c > index 093352e93d50..0bc9ec69f38a 100644 > --- a/tools/perf/util/util.c > +++ b/tools/perf/util/util.c > @@ -506,3 +506,13 @@ const char *perf_tip(const char *dirpath) > > return tip; > } > + > +void get_exec_path(char *tpath, size_t size) > +{ > + const char *path = "/proc/self/exe"; > + ssize_t len; > + > + len = readlink(path, tpath, size - 1); > + assert(len > 0); > + tpath[len] = 0; > +} we have now helper for that, please rebase this on top of arnaldo's perf/core: 94816add0005 perf tools: Add perf_exe() helper to find perf binary jirka