From nobody Tue Apr 14 09:27:52 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E136C00144 for ; Tue, 2 Aug 2022 01:55:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235810AbiHBBzi (ORCPT ); Mon, 1 Aug 2022 21:55:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235735AbiHBByy (ORCPT ); Mon, 1 Aug 2022 21:54:54 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55C2A48CA4; Mon, 1 Aug 2022 18:53:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id C2BD7CE19F4; Tue, 2 Aug 2022 01:53:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7F69C433D7; Tue, 2 Aug 2022 01:53:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1659405202; bh=NuOpRdMsihtMLYOwhaS3C4UEtVr+be11RVn2cwjc27A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X8B0Rnx5hiPLbSQoil8jKzXGRaRTnT8LMR36JCM47QXX1Ycf4AmUmgZdAiE+oV1D3 o4p5tpjKvbuIxvWblx+XLusOwnoMU6JVRIQeGkHMDX7LDIKgYgCp8SdvuisfDOAcHI /K2RzIhggO2YLXfENgxZqpouWFDB5+RNR1Tf24TW6np5BTFSNusinvIZd8My4lONp9 SWViyeJwWFo86tWZWFMvYJrTd05pVn+TFyzn7AVIYFadgj9MKTzf+yRbEiYyc9O3IT dOQ5kkp0mkxS32epGd7W7pL6UdRODLdr8vuOSssLVHbsHfujhuZmldPwtkSpgM4U97 zQVwM3n+zstIw== From: Miguel Ojeda To: Linus Torvalds , Greg Kroah-Hartman Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Jarkko Sakkinen , Miguel Ojeda , Kees Cook , Alex Gaynor , Wedson Almeida Filho Subject: [PATCH v8 24/31] scripts: decode_stacktrace: demangle Rust symbols Date: Tue, 2 Aug 2022 03:50:11 +0200 Message-Id: <20220802015052.10452-25-ojeda@kernel.org> In-Reply-To: <20220802015052.10452-1-ojeda@kernel.org> References: <20220802015052.10452-1-ojeda@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Recent versions of both Binutils (`c++filt`) and LLVM (`llvm-cxxfilt`) provide Rust v0 mangling support. Reviewed-by: Kees Cook Co-developed-by: Alex Gaynor Signed-off-by: Alex Gaynor Co-developed-by: Wedson Almeida Filho Signed-off-by: Wedson Almeida Filho Signed-off-by: Miguel Ojeda --- scripts/decode_stacktrace.sh | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh index 7075e26ab2c4..564c5632e1a2 100755 --- a/scripts/decode_stacktrace.sh +++ b/scripts/decode_stacktrace.sh @@ -8,6 +8,14 @@ usage() { echo " $0 -r | [|auto] []" } =20 +# Try to find a Rust demangler +if type llvm-cxxfilt >/dev/null 2>&1 ; then + cppfilt=3Dllvm-cxxfilt +elif type c++filt >/dev/null 2>&1 ; then + cppfilt=3Dc++filt + cppfilt_opts=3D-i +fi + if [[ $1 =3D=3D "-r" ]] ; then vmlinux=3D"" basepath=3D"auto" @@ -180,6 +188,12 @@ parse_symbol() { # In the case of inlines, move everything to same line code=3D${code//$'\n'/' '} =20 + # Demangle if the name looks like a Rust symbol and if + # we got a Rust demangler + if [[ $name =3D~ ^_R && $cppfilt !=3D "" ]] ; then + name=3D$("$cppfilt" "$cppfilt_opts" "$name") + fi + # Replace old address with pretty line numbers symbol=3D"$segment$name ($code)" } --=20 2.37.1