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=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 6E963C433E0 for ; Fri, 26 Jun 2020 20:53:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39FC020720 for ; Fri, 26 Jun 2020 20:53:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="vBN1uw2G" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725803AbgFZUxu (ORCPT ); Fri, 26 Jun 2020 16:53:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725793AbgFZUxu (ORCPT ); Fri, 26 Jun 2020 16:53:50 -0400 Received: from mail-qt1-x844.google.com (mail-qt1-x844.google.com [IPv6:2607:f8b0:4864:20::844]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CA1BC03E979; Fri, 26 Jun 2020 13:53:50 -0700 (PDT) Received: by mail-qt1-x844.google.com with SMTP id o38so8515186qtf.6; Fri, 26 Jun 2020 13:53:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=mxcyMm7JBj93gJinroz3hDVgZv/8ciunH7mozYt+4hU=; b=vBN1uw2GNtct8AG5j6IZkjggV9dHSOTu+ms/jOrFy5tJ1Cxa3Jkyr+BWmCn7+mmm6i zNdp9b4RngoX9G8PkjHpQcjFnPjkY2LvmBCioVqjeyL0DISsEwNcNYY1gJ0fKRgQ2Ysd +EsNLjueJiIJC1rEVq0zE/13BA7jVk23+QfPbzExqKTYJ/WYzc8vosfZ2HO9rz0Bn+7m DhFGQ5noi7yOv3cVDai17JwdzKTwNQYad4oQI1WcSn+uIwqrb3MugJ7Ir7yoyCYVANbA y4hyytkeMg9ICnGJ+rBUmahx9KnIPDNT8v828qHUhGOUm/NnQpy8l2Bks+bnvZ1WhuE2 qThQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=mxcyMm7JBj93gJinroz3hDVgZv/8ciunH7mozYt+4hU=; b=OPCoOUvN31i/fdGlkqCSFUqdgJaJ1IQ2hdMWSJMgfflObB+8aR2/BRHRwzM46tUWzj GtZAVwWM7oGQX5Fnyx0pAvt3qhAh97EQIwEDKSe8PrNxbixu4rP7S1AgRZBy6ujvH07h jLRgajtlIqIKl74q2bo8aARV+hTbPDVdJXNmwB86AhEuBsa68VMaNq2v1u0/yrHa5mzX CFvoRAhAbH6fBMyTG4SiCqWZnym93oEpVmafnC+KU8S3sDfhLaKiH/IIkoX5vZdQyM7N 8EFDdL3u9XiCMC5Kvl+BGf3ewWKX+7EEluBeK7/uwA8yzzHoOTgesfDJAwu8zDR32FeU BC4A== X-Gm-Message-State: AOAM532l5eSWiG/Q+bXtyzNbOUB8wZ3I/LqH26GJwX1LAC0+sv3FLM1q c9acdU9c2dzCUsMA0AJI/N8TWLiLlwM7IjHcy5o= X-Google-Smtp-Source: ABdhPJz7cc3iGXzM1A4EhpOI/TjIxNKA6kJ0TSdZnFVoXUCRVeuuDIpK4FkUbai4eyBmo/fl5AMUrqdVgKoFcEYNvAM= X-Received: by 2002:ac8:2bba:: with SMTP id m55mr4720657qtm.171.1593204829569; Fri, 26 Jun 2020 13:53:49 -0700 (PDT) MIME-Version: 1.0 References: <20200625221304.2817194-1-jolsa@kernel.org> <20200625221304.2817194-2-jolsa@kernel.org> In-Reply-To: <20200625221304.2817194-2-jolsa@kernel.org> From: Andrii Nakryiko Date: Fri, 26 Jun 2020 13:53:38 -0700 Message-ID: Subject: Re: [PATCH v4 bpf-next 01/14] bpf: Add resolve_btfids tool to resolve BTF IDs in ELF object To: Jiri Olsa Cc: Alexei Starovoitov , Daniel Borkmann , Networking , bpf , Song Liu , Yonghong Song , Martin KaFai Lau , David Miller , John Fastabend , Wenbo Zhang , KP Singh , Andrii Nakryiko , Brendan Gregg , Florent Revest , Al Viro Content-Type: text/plain; charset="UTF-8" Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Thu, Jun 25, 2020 at 4:48 PM Jiri Olsa wrote: > > The resolve_btfids tool scans elf object for .BTF_ids section > and resolves its symbols with BTF ID values. > > It will be used to during linking time to resolve arrays of BTF > ID values used in verifier, so these IDs do not need to be > resolved in runtime. > > The expected layout of .BTF_ids section is described in btfid.c > header. Related kernel changes are coming in following changes. > > Signed-off-by: Jiri Olsa > --- > tools/bpf/resolve_btfids/Build | 26 ++ > tools/bpf/resolve_btfids/Makefile | 76 ++++ > tools/bpf/resolve_btfids/main.c | 716 ++++++++++++++++++++++++++++++ > 3 files changed, 818 insertions(+) > create mode 100644 tools/bpf/resolve_btfids/Build > create mode 100644 tools/bpf/resolve_btfids/Makefile > create mode 100644 tools/bpf/resolve_btfids/main.c > LGTM. Acked-by: Andrii Nakryiko [...]