From mboxrd@z Thu Jan 1 00:00:00 1970 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 35801C678D4 for ; Wed, 1 Mar 2023 23:34:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229529AbjCAXeE (ORCPT ); Wed, 1 Mar 2023 18:34:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229470AbjCAXeD (ORCPT ); Wed, 1 Mar 2023 18:34:03 -0500 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6254A46148 for ; Wed, 1 Mar 2023 15:34:02 -0800 (PST) Received: by mail-pl1-x62c.google.com with SMTP id i3so15758909plg.6 for ; Wed, 01 Mar 2023 15:34:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1677713642; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=HRnbOushIGayii8e9TGHD8AmU4agQakFfKEOxWBRoZo=; b=evRAyZPfhF8pt9QwB2EGm3mqEdexSnOnOxQ+hq9/DxelpWGEHqXeJgEIPPYdxc/yLw SsgzjdTlqhiVgjLFT5qREnUiTmgGg+FBSum/VxL2YXwXXYyQB9OXS3brQGT/EV7tJxS1 VQG1olQFAByH4KbC2bR5wyTc7Ho4UQmvOvcr10/pglzCGcDfsQay/zoE1Z8iWq1dcd2s YaOlNesN514nTspp28A4uUjpr0FJN+KZ9nwOL+RHwLVSNbuU0I/ZcWKUwG2uz67TxquO vtl0XuEr2Jzd/lwI+V/jSFYnacBIQa7JoTDFeQPZfcN0Mnci0F83fTmBVoZIZsMT3e3/ BTzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1677713642; h=content-transfer-encoding:cc: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=HRnbOushIGayii8e9TGHD8AmU4agQakFfKEOxWBRoZo=; b=jTG5TI9Fj7eymYRnyjdN3Zxxs17vwGpS5AVf53GXXnbp9vqJ76be7IDRTmL2ieuqqQ 7eyUAq2w5uQNV/t5ZY+45AJ8CRHHzTYXaDr6N49MmWcodW2Fiq5pFuF5Sz0tsoBbnuSj fThq+IpMS4BBhni9iEB1VgwTEmdI/0qhHuDv6FJ2TkVlF66UB5Yogx2mZBHD7LHyNeo3 g/cHHmDCKNoWuJoM9Bf53PwZzaFgyW4ZSezZaOl+VQnpj+XaGt5iCChO2McIWLqDB3im ifA8uSP/YgTOrDINUsOGc3Hs/nyI0wqGYrzQznqXIJS/GY1QL5bJurNqs2ykMHEX7hMt T9Sw== X-Gm-Message-State: AO0yUKX4ClMWvN+/tgW6+TXVTgvPbNud3d4oUA4GXwtdqzHU2ZVhK5TJ fm7ybgsrMCYiO2iXPT1TDkJC3ItsvvDdoO+gBP1P1Q== X-Google-Smtp-Source: AK7set9vQaIGnJBnZuSGxWwvYgDfU1W97KSAF9pAQ7TcZ1kC9CiIP88cqyAB9y22n8IVJ6JkCmAvfbchZO2qI3QrgoE= X-Received: by 2002:a17:903:44e:b0:19a:87dd:9206 with SMTP id iw14-20020a170903044e00b0019a87dd9206mr2961850plb.0.1677713641493; Wed, 01 Mar 2023 15:34:01 -0800 (PST) MIME-Version: 1.0 References: <20230301075402.4578-1-quic_johmoo@quicinc.com> <41d287fa-3a0a-cac6-4595-ad47ef873d79@quicinc.com> <0c92e7b8-e415-8ad5-14e7-d94f18c3fa25@quicinc.com> In-Reply-To: From: Nick Desaulniers Date: Wed, 1 Mar 2023 15:33:50 -0800 Message-ID: Subject: Re: [PATCH v2 0/2] Validating UAPI backwards compatibility To: John Moon Cc: Masahiro Yamada , Nathan Chancellor , Nicolas Schier , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Greg Kroah-Hartman , Randy Dunlap , Arnd Bergmann , Bjorn Andersson , Todd Kjos , Matthias Maennich , Giuliano Procida , kernel-team@android.com, libabigail@sourceware.org, Jordan Crouse , Trilok Soni , Satya Durga Srinivasu Prabhala , Elliot Berman Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Wed, Mar 1, 2023 at 2:33=E2=80=AFPM John Moon = wrote: > > With some additional help from Nick offline, we determined that the > issue isn't with clang, but with libdw (from elfutils). You need at > least libdw version 0.171 for the abidiff tool to work correctly with > clang (in this particular case). Ubuntu 18.04 ships with version 0.170. > > If there's any interest, it'd be fairly easy to add a check for this > condition under the check_deps() function in the script. Good job John; mind sending a v3 with that addition, and the commit message updated? --=20 Thanks, ~Nick Desaulniers From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C357EC7EE23 for ; Wed, 1 Mar 2023 23:35:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PXuSveYqDxnNLPVcuy3yQLbkzqGD/fGetiPthvJaF7U=; b=Nc73Eje9nYdqgQ KYPuw0PLBnyAusnRNB+a7CF2M6r3WzDTVAzU+5N8I7BamEZ0sh8FYGa5QA64BKJfmQ3+gLWHVRFSI UUyC7MKf0+o0uBgIV++kDR8u25HnlyiDIAq+7NCZH6oKtYQ0cXcfTSXCop8QIR6rl0mps06d/oLxm yixatgY8kg8UGtz4tYpQW0L1Y+y5wLX7AZ3q8vIcK7r9X3rFIMod+89n8A3v8a3cNJLve+0iVbDVd BTtqRzqMnzcEfFCkEz9hS/HXCFLeoN2N90IIyQ/o1Bds91SdvFGDegpk5O2Vq8VFPEdMr7USz6/Jt eC0JSEcPjxgh9G6410Mw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXVxW-000GYb-Kl; Wed, 01 Mar 2023 23:34:06 +0000 Received: from mail-pj1-x102a.google.com ([2607:f8b0:4864:20::102a]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pXVxT-000GXX-Ge for linux-arm-kernel@lists.infradead.org; Wed, 01 Mar 2023 23:34:04 +0000 Received: by mail-pj1-x102a.google.com with SMTP id x34so15099271pjj.0 for ; Wed, 01 Mar 2023 15:34:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1677713642; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=HRnbOushIGayii8e9TGHD8AmU4agQakFfKEOxWBRoZo=; b=evRAyZPfhF8pt9QwB2EGm3mqEdexSnOnOxQ+hq9/DxelpWGEHqXeJgEIPPYdxc/yLw SsgzjdTlqhiVgjLFT5qREnUiTmgGg+FBSum/VxL2YXwXXYyQB9OXS3brQGT/EV7tJxS1 VQG1olQFAByH4KbC2bR5wyTc7Ho4UQmvOvcr10/pglzCGcDfsQay/zoE1Z8iWq1dcd2s YaOlNesN514nTspp28A4uUjpr0FJN+KZ9nwOL+RHwLVSNbuU0I/ZcWKUwG2uz67TxquO vtl0XuEr2Jzd/lwI+V/jSFYnacBIQa7JoTDFeQPZfcN0Mnci0F83fTmBVoZIZsMT3e3/ BTzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1677713642; h=content-transfer-encoding:cc: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=HRnbOushIGayii8e9TGHD8AmU4agQakFfKEOxWBRoZo=; b=eYIex1k9zA6/LtJTV76QgCCrnXNZjab+KtKWNnoJsKEt9wFFZyS95+jpwjn0SE08sB yZKdeorhdVu7zoGeTeZIKtTiEgEJG5aH59Bhrv+7MNVT3zLVR9rFqB52wFQcA2q4TZcB BtJ/C1YV4HBXRWM2IFtYXzHe1d5zZt1P0ebogP0FnnNzoX073uTdvGufZN9VgBqGZnkV C+NmkUaz2kVwnIj2d7MOQGPGDzQyn7E4TmftRY6VyRCMDF4CatK0P6i05GwjQqiFT+R3 FTq7se0CU2JyB3Sd3CNu2zXa6aPJuHggFhIYKfOpfTN/lBwr2EH54mzQtx83O0eETNpH +4cQ== X-Gm-Message-State: AO0yUKVAf6y0t5m7njHG9ALIurtRuZ1LCo8dYr3M1vnrkjW6RYBF1Y4N ZdQ+1xqCPtX6UHoP7QyenK5W1JbzgCB+a0dWlFmTzg== X-Google-Smtp-Source: AK7set9vQaIGnJBnZuSGxWwvYgDfU1W97KSAF9pAQ7TcZ1kC9CiIP88cqyAB9y22n8IVJ6JkCmAvfbchZO2qI3QrgoE= X-Received: by 2002:a17:903:44e:b0:19a:87dd:9206 with SMTP id iw14-20020a170903044e00b0019a87dd9206mr2961850plb.0.1677713641493; Wed, 01 Mar 2023 15:34:01 -0800 (PST) MIME-Version: 1.0 References: <20230301075402.4578-1-quic_johmoo@quicinc.com> <41d287fa-3a0a-cac6-4595-ad47ef873d79@quicinc.com> <0c92e7b8-e415-8ad5-14e7-d94f18c3fa25@quicinc.com> In-Reply-To: From: Nick Desaulniers Date: Wed, 1 Mar 2023 15:33:50 -0800 Message-ID: Subject: Re: [PATCH v2 0/2] Validating UAPI backwards compatibility To: John Moon Cc: Masahiro Yamada , Nathan Chancellor , Nicolas Schier , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Greg Kroah-Hartman , Randy Dunlap , Arnd Bergmann , Bjorn Andersson , Todd Kjos , Matthias Maennich , Giuliano Procida , kernel-team@android.com, libabigail@sourceware.org, Jordan Crouse , Trilok Soni , Satya Durga Srinivasu Prabhala , Elliot Berman X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230301_153403_611532_CBF7528C X-CRM114-Status: GOOD ( 12.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gV2VkLCBNYXIgMSwgMjAyMyBhdCAyOjMz4oCvUE0gSm9obiBNb29uIDxxdWljX2pvaG1vb0Bx dWljaW5jLmNvbT4gd3JvdGU6Cj4KPiBXaXRoIHNvbWUgYWRkaXRpb25hbCBoZWxwIGZyb20gTmlj ayBvZmZsaW5lLCB3ZSBkZXRlcm1pbmVkIHRoYXQgdGhlCj4gaXNzdWUgaXNuJ3Qgd2l0aCBjbGFu ZywgYnV0IHdpdGggbGliZHcgKGZyb20gZWxmdXRpbHMpLiBZb3UgbmVlZCBhdAo+IGxlYXN0IGxp YmR3IHZlcnNpb24gMC4xNzEgZm9yIHRoZSBhYmlkaWZmIHRvb2wgdG8gd29yayBjb3JyZWN0bHkg d2l0aAo+IGNsYW5nIChpbiB0aGlzIHBhcnRpY3VsYXIgY2FzZSkuIFVidW50dSAxOC4wNCBzaGlw cyB3aXRoIHZlcnNpb24gMC4xNzAuCj4KPiBJZiB0aGVyZSdzIGFueSBpbnRlcmVzdCwgaXQnZCBi ZSBmYWlybHkgZWFzeSB0byBhZGQgYSBjaGVjayBmb3IgdGhpcwo+IGNvbmRpdGlvbiB1bmRlciB0 aGUgY2hlY2tfZGVwcygpIGZ1bmN0aW9uIGluIHRoZSBzY3JpcHQuCgpHb29kIGpvYiBKb2huOyBt aW5kIHNlbmRpbmcgYSB2MyB3aXRoIHRoYXQgYWRkaXRpb24sIGFuZCB0aGUgY29tbWl0Cm1lc3Nh Z2UgdXBkYXRlZD8KLS0gClRoYW5rcywKfk5pY2sgRGVzYXVsbmllcnMKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGlu ZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMu aW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK