From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by sourceware.org (Postfix) with ESMTPS id B0C9C3850202 for ; Fri, 26 Aug 2022 19:45:26 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B0C9C3850202 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=linaro.org Received: by mail-pg1-x533.google.com with SMTP id s206so2254585pgs.3 for ; Fri, 26 Aug 2022 12:45:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc; bh=XAmVFQ5SJwlKKoe7REzFdyTzs/jIapB7p20VdfGcXdU=; b=kWWVNidbD9x6BDOTF875ommjQ8MPpFbYj6l6J1Y701qTgqTMtQqsN8e9JzWsvOaZf4 8DTBTBVT4qOMArP/b0dd3LZznPE2BlhtK1+FHRrPTh+OBuO3zdyhOzUoRSa7HK/yFLs3 JcX/+xJCzlwgVEZECYtn2T8h4AJ9B6DfONb4/svIjgMni+aRrPZCWsfcjF56OuU89Y4G lw4k1jiilDrxvXYKkGWzhouQmhZBN9rsYnDtF7KEO6me7J44gUYUDWx6596Ki8RhDXE9 aHtULWelFY+BPhDgPMaXjMtUoaYJXrdRt8qMLIARJfAk1l3CSO7j8AeId2K2U06LvicH MSKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc; bh=XAmVFQ5SJwlKKoe7REzFdyTzs/jIapB7p20VdfGcXdU=; b=DsZhCL3TIaGm5zd8sw+7MjBxIGji9fQu0+neHv/DLyZpC+ETL9AfFU6pQa/l9ZBFzR oOoMWGzMj6J87C72+bRgFmOhIYa8BTBFL7DhDgO0VzBG59HhP/gZ4j0D0d/AJc5dEwKK r6r6AiZ+p7dJuxD8W1VBOSUDpDVtDFlyTZD/c8X6+NLmc6zm2x1cm8p3FzYa2655Boxj fNTdBxQb4EXaBs0BlA/OgmE6kwasCUn3+zWgR1HAiHBHtb7LInzxLqjzRVP8Vf5sUcKo /TLJTvOUvE8w2Ifjk85zpfy0IYIw3u6snmFc48261WKOQHpu4AbhjFoq4f2oZjk4IBc9 q6iw== X-Gm-Message-State: ACgBeo0jrYhmC2YrH1IZfrNJGxEQCErd8FFgIS8GeS1nJS4Nobpgb8fZ bb3MgNdmCsZ9OxjOA7RzynktDhoUOEogCA== X-Google-Smtp-Source: AA6agR5ua7nOz57TqLg/Is6CeNUMlbPzgFd+teBAeRQNM8I2Pa1qFINSPHS1GX7BMD2WltPo+aXMpQ== X-Received: by 2002:a63:b24e:0:b0:42a:b42b:3826 with SMTP id t14-20020a63b24e000000b0042ab42b3826mr4367016pgo.605.1661543125429; Fri, 26 Aug 2022 12:45:25 -0700 (PDT) Received: from ?IPV6:2602:47:d49d:ec01:68d8:30f3:fbd7:6f7f? ([2602:47:d49d:ec01:68d8:30f3:fbd7:6f7f]) by smtp.gmail.com with ESMTPSA id z3-20020aa79483000000b0052dfe83e19csm2201379pfk.16.2022.08.26.12.45.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 26 Aug 2022 12:45:24 -0700 (PDT) Message-ID: <10cbed26-dc3c-3a55-8e39-95916c614dbb@linaro.org> Date: Fri, 26 Aug 2022 12:45:23 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [RESEND PATCH] Makeconfig: Set pie-ccflag to -fPIE by default Content-Language: en-US To: "H.J. Lu" , Wilco Dijkstra Cc: Adhemerval Zanella , GNU C Library References: From: Richard Henderson In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE,URIBL_BLACK autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 8/26/22 12:02, H.J. Lu wrote: > On Fri, Aug 26, 2022 at 11:39 AM Wilco Dijkstra via Libc-alpha >> However this exposes a bug: it appears all symbols, including hidden symbols, >> are always accessed via the GOT in libc.a even when they don't in libc.so. As a >> result PIE code quality is actually worse than PIC... This affects libc_single_threaded > > Is this issue processor specific? I wouldn't think so. r~