From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id 09a/Ik7BTWDMHgAAWB0awg (envelope-from ) for ; Sun, 14 Mar 2021 03:54:54 -0400 Received: by simark.ca (Postfix, from userid 112) id 805151EF78; Sun, 14 Mar 2021 03:54:54 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id D34461E54D for ; Sun, 14 Mar 2021 03:54:53 -0400 (EDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 597443857C6B; Sun, 14 Mar 2021 07:54:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 597443857C6B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1615708493; bh=R/fJWKsbdUBh2bxAoH6pTK8vX4X6U6yGOzovWc6PEdI=; h=References:In-Reply-To:Date:Subject:To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=Lp9hSJ3hPEOtLoy0caRCncWnttuPscvwaTyJJPoNS/NtIF9jHN8oIPwkLIF3s0/Ha i9WNbHszkdiOyUEDPOzTDNnP7K04HibP9Uxuw9d8Y7wV3mNzPg6qEtq/oaUwcWX2b4 eC4Zy6JNmh8uvuEqpT2nV2Q+ujc8nHL5WH4TGRPk= Received: from mail-il1-x134.google.com (mail-il1-x134.google.com [IPv6:2607:f8b0:4864:20::134]) by sourceware.org (Postfix) with ESMTPS id 7D7CA3857C6B for ; Sun, 14 Mar 2021 07:54:50 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 7D7CA3857C6B Received: by mail-il1-x134.google.com with SMTP id i18so6509902ilq.13 for ; Sat, 13 Mar 2021 23:54:50 -0800 (PST) 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:content-transfer-encoding; bh=R/fJWKsbdUBh2bxAoH6pTK8vX4X6U6yGOzovWc6PEdI=; b=m7LK4AXfXEQW8RDU3ond6gdis4GANJxjmrJqaLvKGqZsWW8Nb5NINOROblVr/KqceH ieTyW1kK+baCLkkT54sTU8y7BN6dlB2U7vhfDKVK1hvZA3vblncsCU8XUWDCSZ19JvsL H412kDRHDrNXSeSYtoSA94TV8q/X9ol4Uh6Cijj1CI9QNUi4RtkErzsE1NvyGIx8hysY PQSR2zN1Y0/UU8Krn1Ej6A5TAjuoOvblSHwq932dHm7/3PAYK2BJWfTWQQQ9vG9EeaHa ABrHKCzsIRTctYEB29B0EaFCERCWhU/iSSpv3WyZvuaCFTH5hO7vVVZtZ2YtLTv3P60O PErw== X-Gm-Message-State: AOAM533J+rhwqK3rp0EqYlGAobPeedeGklIF7vKNoMDY82rNBrz5LEkK KJGNdMA4pCATRUQKEcYvqv3zQPr+0aKGDnE1CabFDu0DdMDbIg== X-Google-Smtp-Source: ABdhPJzSBP5YRGbga3tXpErWpFQfnj+t1zQfrNATsPI9FFl+p18i9oUk5DqBTsxOloBzZy7UBUFFTRPE7CJi2pyis4o= X-Received: by 2002:a92:c883:: with SMTP id w3mr8769170ilo.212.1615708489921; Sat, 13 Mar 2021 23:54:49 -0800 (PST) MIME-Version: 1.0 References: <83h7loun5e.fsf@gnu.org> <87h7le42jf.fsf@linux-m68k.org> In-Reply-To: <87h7le42jf.fsf@linux-m68k.org> Date: Sun, 14 Mar 2021 03:54:06 -0400 Message-ID: Subject: Re: Demangling in backtraces To: gdb@sourceware.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jeffrey Walton via Gdb Reply-To: noloader@gmail.com Errors-To: gdb-bounces@sourceware.org Sender: "Gdb" On Sun, Mar 14, 2021 at 3:48 AM Andreas Schwab wrot= e: > > On M=C3=A4r 06 2021, Eli Zaretskii via Gdb wrote: > > > I have built a C program linked against libgccjit. When it crashes, > > the backtrace shows mangled names, like this: > > > > #0 0x70f5ac3e in libgccjit-0!_Z17gimple_build_callP9tree_nodejz () > > Is this prefix part of the symbol name? A valid mangled name must start > with _Z. It looks like the prefix 'libgccjit-0!' is causing trouble: $ echo '_Z17gimple_build_callP9tree_nodejz' | c++filt gimple_build_call(tree_node*, unsigned int, ...) $ echo 'libgccjit-0!_Z17gimple_build_callP9tree_nodejz' libgccjit-0!_Z17gimple_build_callP9tree_nodejz Jeff