From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id UfKRARt5TWBFFwAAWB0awg (envelope-from ) for ; Sat, 13 Mar 2021 21:46:51 -0500 Received: by simark.ca (Postfix, from userid 112) id ECAC61EF78; Sat, 13 Mar 2021 21:46:50 -0500 (EST) 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 0E72D1E789 for ; Sat, 13 Mar 2021 21:46:50 -0500 (EST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 5FAF5385802A; Sun, 14 Mar 2021 02:46:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5FAF5385802A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1615690009; bh=LiWyAJvIhAn62L+Q3h4inAdoQckekW3Dr3uJHv/ZX5I=; h=Subject:To:References:Date:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=W1H/+CyXkmZuVBt+HRs476ot7cAJvdJa2GkHtNNL69VQD9W6/ph/d88aBpBMHybzP GC2JSECJj1VVvfkZ1F8gIIvHo7cM1CNBQEJ8+Qfwa8WNEbI/fkEkW8Z3lVPcpEbkN4 I5/AT1r7WMb4fnmbEF0f661tlGXyfjDqHQSbB2S4= Received: from smtp.polymtl.ca (smtp.polymtl.ca [132.207.4.11]) by sourceware.org (Postfix) with ESMTPS id 787B5385802A for ; Sun, 14 Mar 2021 02:46:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 787B5385802A Received: from simark.ca (simark.ca [158.69.221.121]) (authenticated bits=0) by smtp.polymtl.ca (8.14.7/8.14.7) with ESMTP id 12E2kWh0014293 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 13 Mar 2021 21:46:37 -0500 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp.polymtl.ca 12E2kWh0014293 Received: from [10.0.0.11] (192-222-157-6.qc.cable.ebox.net [192.222.157.6]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by simark.ca (Postfix) with ESMTPSA id 75A8D1E789; Sat, 13 Mar 2021 21:46:32 -0500 (EST) Subject: Re: Demangling in backtraces To: Eli Zaretskii , gdb@sourceware.org References: <83h7loun5e.fsf@gnu.org> <8335wzjuuk.fsf@gnu.org> Message-ID: <6005438b-e445-05f4-f063-d62016d2885a@polymtl.ca> Date: Sat, 13 Mar 2021 21:46:32 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <8335wzjuuk.fsf@gnu.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Poly-FromMTA: (simark.ca [158.69.221.121]) at Sun, 14 Mar 2021 02:46:32 +0000 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: Simon Marchi via Gdb Reply-To: Simon Marchi Errors-To: gdb-bounces@sourceware.org Sender: "Gdb" On 2021-03-13 3:55 a.m., Eli Zaretskii via Gdb wrote: > Ping! Does the silence mean we don't have such a feature in GDB? > >> Date: Sat, 06 Mar 2021 20:56:13 +0200 >> From: Eli Zaretskii via Gdb >> >> 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 () >> from D:\usr\bin\libgccjit-0.dll >> #1 0x7190fa7b in libgccjit-0!_ZN19evrp_range_analyzer5leaveEP15basic_block_def >> () from D:\usr\bin\libgccjit-0.dll >> #2 0x71910eef in libgccjit-0!_Z36stmt_uses_0_or_null_in_undefined_wayP6gimple >> () from D:\usr\bin\libgccjit-0.dll >> #3 0x710fba2c in libgccjit-0!_Z16execute_one_passP8opt_pass () >> from D:\usr\bin\libgccjit-0.dll >> >> (This is because libgccjit is written in C++, and because the DLL is >> stripped.) >> >> How can I cause GDB to demangle the function names when showing the >> backtrace in this case? I tried setting language to c++, but that >> didn't help. >> >> TIA >> I don't really know. I've tried making a toy program and shared library on Linux in C++, without debug symbols, and it "just works": #0 0x00007ffff7fc00ed in foo(int) () from ./libfoo.so #1 0x0000555555555147 in main () So maybe it's supposed to "just work" on Windows as well and it doesn't? I don't really have time to dig into it further. Simon