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=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 F405EC433DB for ; Fri, 5 Feb 2021 17:54:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 955BC64DE8 for ; Fri, 5 Feb 2021 17:54:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233507AbhBEQLh (ORCPT ); Fri, 5 Feb 2021 11:11:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232226AbhBEQGc (ORCPT ); Fri, 5 Feb 2021 11:06:32 -0500 Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8105C06178A; Fri, 5 Feb 2021 09:48:14 -0800 (PST) Received: by mail-il1-x12b.google.com with SMTP id a16so6574787ilq.5; Fri, 05 Feb 2021 09:48:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:reply-to:from:date:message-id :subject:to:cc; bh=Nzg2Y6oVl+tLUz3k5gFodM3ChMzuciBTFCA8xI93+E4=; b=mzh3bA4P1GVt2poO+pGX1uSo08aLxLImENFo2eSBX4r53MeU/8TValwGQTeFEgDtU7 lKHDmzQxxcByjhX2sqUModDOkxjFskCKrRHDVW2JxmsZJ6e46wTYssM2hUibPy3D575B +jiGZSpMJopbVXsVGES4zUpKbTO120TxkYuoCr1N+71+l1IoBgUEYm9J0MAvHIb3xQYN U02XCrB+fqb8iKbZUeZlydA5JBo6bn2lTQbFCFqBghzYs0XSkzuag28jmlcAFPL7pJBs A1emkUP1XvbD0fvgbbf4yBI0E9pfs/zBPtHcjpiQvb6DuSgFfLhXIIDmOpVzHTvXxBxz hfKw== 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:reply-to :from:date:message-id:subject:to:cc; bh=Nzg2Y6oVl+tLUz3k5gFodM3ChMzuciBTFCA8xI93+E4=; b=BB36qj54RZFrwS2IObITEL9B3w8Kn+NRdUCNvQ8ph2yExjztrRUlijrASxDee0ESNE xKHAV26hSKhs5avat208HdfIPBROq6W9+/jIZhDTpNYaI5YAhCuh4dvOIz7d1PwR/x4R 87/D8Z3CdKPDp4CiiF26apYY83/jiJboBp5c33c9cq8wHkOagQ/IDbzpYXpVB8Syy7q4 DPTT5/o2m9j2QgON7Bau/rdSjRQQexEDY5kel6biKUSR/PY61ZxHcmsxKpkH4vfkWSDb SxMaFWPJxdy4EiXYwkY9qRG8BQpEUEspheokaO+jTxFavRkJGfSPju6F1VDSo0u+8cmF UP4A== X-Gm-Message-State: AOAM533soWQgcbQnSbmdvH/BOt+eCHxD7I0CCaGriEEhAfuq+y20khvS nE0YaMv5+DwLd6Wr+wvTLAHIp+zIawZUgMdX8J4= X-Google-Smtp-Source: ABdhPJzobqn7E2KduFsjD69vXwZuE2qkuShXvhD42PLKIrCEKwFrkYSvozWmQwUT8xJtc1AHzxZCoN9XFC6rq//XVWg= X-Received: by 2002:a92:58ce:: with SMTP id z75mr5018753ilf.209.1612547294004; Fri, 05 Feb 2021 09:48:14 -0800 (PST) MIME-Version: 1.0 References: <20210204220741.GA920417@kernel.org> <20210205152823.GD920417@kernel.org> In-Reply-To: <20210205152823.GD920417@kernel.org> Reply-To: sedat.dilek@gmail.com From: Sedat Dilek Date: Fri, 5 Feb 2021 18:48:02 +0100 Message-ID: Subject: Re: ERROR: INT DW_ATE_unsigned_1 Error emitting BTF type To: Arnaldo Carvalho de Melo Cc: dwarves@vger.kernel.org, Linux Kernel Mailing List , bpf@vger.kernel.org, Jiri Olsa , Jan Engelhardt , Domenico Andreoli , Matthias Schwarzott , Andrii Nakryiko , Yonghong Song , Mark Wieelard , Paul Moore , Ondrej Mosnacek , =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= , Tom Stellard Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 5, 2021 at 4:28 PM Arnaldo Carvalho de Melo wrote: > > Em Fri, Feb 05, 2021 at 04:23:59PM +0100, Sedat Dilek escreveu: > > On Fri, Feb 5, 2021 at 3:41 PM Sedat Dilek wrote: > > > > > > On Fri, Feb 5, 2021 at 3:37 PM Sedat Dilek wrote: > > > > > > > > Hi, > > > > > > > > when building with pahole v1.20 and binutils v2.35.2 plus Clang > > > > v12.0.0-rc1 and DWARF-v5 I see: > > > > ... > > > > + info BTF .btf.vmlinux.bin.o > > > > + [ != silent_ ] > > > > + printf %-7s %s\n BTF .btf.vmlinux.bin.o > > > > BTF .btf.vmlinux.bin.o > > > > + LLVM_OBJCOPY=/opt/binutils/bin/objcopy /opt/pahole/bin/pahole -J > > > > .tmp_vmlinux.btf > > > > [115] INT DW_ATE_unsigned_1 Error emitting BTF type > > > > Encountered error while encoding BTF. > > > > > > Grepping the pahole sources: > > > > > > $ git grep DW_ATE > > > dwarf_loader.c: bt->is_bool = encoding == DW_ATE_boolean; > > > dwarf_loader.c: bt->is_signed = encoding == DW_ATE_signed; > > > > > > Missing DW_ATE_unsigned encoding? > > > > > > > Checked the LLVM sources: > > > > clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = > > llvm::dwarf::DW_ATE_unsigned_char; > > clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = llvm::dwarf::DW_ATE_unsigned; > > clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = > > llvm::dwarf::DW_ATE_unsigned_fixed; > > clang/lib/CodeGen/CGDebugInfo.cpp: > > ? llvm::dwarf::DW_ATE_unsigned > > ... > > lld/test/wasm/debuginfo.test:CHECK-NEXT: DW_AT_encoding > > (DW_ATE_unsigned) > > > > So, I will switch from GNU ld.bfd v2.35.2 to LLD-12. > > Thanks for the research, probably your conclusion is correct, can you go > the next step and add that part and check if the end result is the > expected one? > Still building... Can you give me a hand on what has to be changed in dwarves/pahole? I guess switching from ld.bfd to ld.lld will show the same ERROR. - Sedat -