From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa1-x35.google.com (mail-oa1-x35.google.com [IPv6:2001:4860:4864:20::35]) by sourceware.org (Postfix) with ESMTPS id A19CC3858C50 for ; Sat, 18 Mar 2023 15:46:17 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org A19CC3858C50 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-oa1-x35.google.com with SMTP id 586e51a60fabf-17786581fe1so8812289fac.10 for ; Sat, 18 Mar 2023 08:46:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679154377; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=A4sjb4wBs+IaZyGOMKhYaPKzRcgpCnJGrYJHaWKDXog=; b=fxiap9sfiH7OEDq1+y8KN9+H/Ym5THmGKU4bWXYrtalU/p5GcTAZyIllbnZfP4PCY4 KBPrRQXu9u7TjH/oD5IH1H6HAnHF0UC26roJu3MxsiO4wAjzmRot8sm57nAmM+AR7zOg WdBZy0b0hEuAxlUCmLR07NS8425ldFaYNI2CJRBtHecvL/At6X9khYcr1HxJm2HRuS// YPxeJsgvQwBmnbvQg5zCAkG/zgmOeo6F5FRiztW2IAKA0eoWosEQzdF7ST97oXsG9jqQ pQLzNbzxaCnOGMWKRF5MR41SW8//55jU3U6ILVGkaecT4WUmcLb3YvtB975ijfG+1msO 2Tsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679154377; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=A4sjb4wBs+IaZyGOMKhYaPKzRcgpCnJGrYJHaWKDXog=; b=53TQJYCaebp5vfUxq+q0Sb9skGhwYgEW4ecN4Taw4epNAs3IAiyl+UEwz/N3CTltWh UaXJryOzTPGFBNvVu0vQZ+E0oVIgE9HHDNuXlvfg6wiuepDr0icvoxiexpO3HykzDLUu CskX3pQD1TovtNwWrbM6EVS+bbIW5GieKrIer91N732e03KVTmxjslD67hVikQLUpsjw LLf6oVUyuqwyfA6ElOSy5HfLSgFBDfp34MwZr9rbqjYmaeM/rXD0odRHx7cJKIK0jZI5 l/sH3bC1Y2Hfw1G4iKZcynlsx4sZNYxnIERe829Neu6hb+UfkSyNXup1h378rOpGc5d+ XSRg== X-Gm-Message-State: AO0yUKXvgGqNbd7e/GORyxpEcqBURm0PqQQjMFl0qY2Rf8Lxm2fN3nA/ d87VoF5+J5wMKTpZF8QwcQ9ri7lXCelFfh7n9xj76Rsz X-Google-Smtp-Source: AK7set/SkMyj5+7sBXl4gToiHBxFrMQOhblTlGqjlJQpPIe0LfWZoLrOo2dfeoKYJUFGwiM/pSFkro8sHpwkMaHurk8= X-Received: by 2002:a05:6871:8e01:b0:177:c2fb:8cec with SMTP id zp1-20020a0568718e0100b00177c2fb8cecmr703103oab.9.1679154376718; Sat, 18 Mar 2023 08:46:16 -0700 (PDT) MIME-Version: 1.0 References: <87a60ayuns.fsf@igel.home> In-Reply-To: <87a60ayuns.fsf@igel.home> From: Tom Kacvinsky Date: Sat, 18 Mar 2023 11:46:05 -0400 Message-ID: Subject: Re: symbols To: Binutils Content-Type: multipart/alternative; boundary="00000000000025c0c105f72e986c" X-Spam-Status: No, score=-0.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: --00000000000025c0c105f72e986c Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Andreas, On Sat, Mar 18, 2023 at 10:57=E2=80=AFAM Andreas Schwab wrote: > On M=C3=A4r 18 2023, Tom Kacvinsky via Binutils wrote: > > > 50: 0000000000939cf0 8 OBJECT : 10 DEFAULT 29 > > _ZGVNSt7collateIwE2idE > > 10 is STB_GNU_UNIQUE. > > > That is definitely a C++ symbol, but libstdc++.so was not linked > > dynamically. I am wanting to know how one would get an > > symbol, and if there is a way of working around this at run time. This > > tool works fine on CenTOS 7 but not on CentOS 5. > > Looks like the CentOS 5 toolchain does not know about GNU_UNIQUE > symbols. > It turns out support for STB_GNU_UNIQUE was implemented in glibc 2.11. CentOS 7 is glibc 2.17 based (which is why the tool worked there) but the glibc version on CentOS 5 is 2.5. Because of that, I'm out of luck. Thanks for pointing me in the right direction. Tom --00000000000025c0c105f72e986c--