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 X-Spam-Level: X-Spam-Status: No, score=-21.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53C39C433E0 for ; Fri, 12 Mar 2021 22:42:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A0D464F69 for ; Fri, 12 Mar 2021 22:42:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235598AbhCLWmQ (ORCPT ); Fri, 12 Mar 2021 17:42:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235589AbhCLWlp (ORCPT ); Fri, 12 Mar 2021 17:41:45 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16595C061574 for ; Fri, 12 Mar 2021 14:41:45 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id f81so30710694yba.8 for ; Fri, 12 Mar 2021 14:41:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=n62ZXlNKUIkGTReX7MmHBLgk3X3V3EW5NpQWFJzdSTA=; b=aLhrSS1Nwvx9iyYPtCrZODRxYwey1++byvUcw++hpshNbVmJZNuPtkU03Ivn2MSqSM i9DHhM9UrfLrgDuo1iG0QurKd4840oIfLU2RUiHBBON466AdyqgYuiVLYRQpAV9YWW3a kPmUaAclUxQrux4076L0Rqb4gifdSJjoqaAfpkSs4TvG8xAzKmvy8ta00HkHRwrmntTU /G6huvVMhPVt4T3BFYEirBWr+vfK6JRK4R8yCng22cvOBvKEyQyzJE4OLHf6j/z+ypEF V/2ZaMhlburbGEpg2rdl7cPzOZmvJqHNDUOtPUcEFSlOYDxC7QoFmvPxPUM+acQEveUQ yr0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=n62ZXlNKUIkGTReX7MmHBLgk3X3V3EW5NpQWFJzdSTA=; b=p26pNLpOU1ViG9bVlVt0IylfiXNdgiI4vvPUfOnsPc5rP7w6MgSa6ybwb0G3Uc6hoV 3s+O7eeYIFiXBvIx3tTeviGt0pw5Xh7Bgp9bkoqZ1YqHe6fo/SFj5yCFbQJhVYfVO5ds O/eNaJfN9+RnQ6JpEmJDsgYH1/475A26sYWHxOevKiZVGz3YsDeIGGhcnZ5w1kfUOeK6 zEUHQdcPuC3BtEWj27EePvXO/hWwRAKgub2iGhr1XBFaxKNgnBHquvLkTHsjuDCuUnk4 BTbZ+QohEyexF30QiahLeeJCJv/v5B278u8OMC0Sgg7Vm4RgEhAcWyGXEytZ3S7H8hCI NohQ== X-Gm-Message-State: AOAM531edXB7rzJbgQ+GgkT7InPC09IAQ+Z2HBHZCkbepNXdgxu6/H5e k7ZvobFbr5vytTLDQjhG53jTI64VF69+iijZsxM= X-Google-Smtp-Source: ABdhPJz2oQ+G7JS6YVQOmBxyT6jWmv/C/U+k0ZBL3BYwO1mGCg63BYC9R9xmgOxmF0f6pY48IRqUxfdfdpuqe0c4dGw= X-Received: from ndesaulniers1.mtv.corp.google.com ([2620:15c:211:202:f1f4:3252:5898:ad84]) (user=ndesaulniers job=sendgmr) by 2002:a25:6189:: with SMTP id v131mr20618833ybb.481.1615588904059; Fri, 12 Mar 2021 14:41:44 -0800 (PST) Date: Fri, 12 Mar 2021 14:41:30 -0800 In-Reply-To: <20210312220518.rz6cjh33bkwaumzz@archlinux-ax161> Message-Id: <20210312224132.3413602-1-ndesaulniers@google.com> Mime-Version: 1.0 References: <20210312220518.rz6cjh33bkwaumzz@archlinux-ax161> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v2 0/2] gcov fixes for clang-11 From: Nick Desaulniers To: Peter Oberparleiter , Andrew Morton Cc: Nathan Chancellor , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Fangrui Song , Prasad Sodagudi , Nick Desaulniers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org LLVM changed the expected function signatures for llvm_gcda_start_file() and llvm_gcda_emit_function() in the clang-11 release. Users of clang-11 or newer may have noticed their kernels failing to boot due to a panic when enabling CONFIG_GCOV_KERNEL=y +CONFIG_GCOV_PROFILE_ALL=y. Fix up the function signatures so calling these functions doesn't panic the kernel. The first patch should allow us to backport it to stable; the second drops support for older toolchains. Link: https://reviews.llvm.org/rGcdd683b516d147925212724b09ec6fb792a40041 Link: https://reviews.llvm.org/rG13a633b438b6500ecad9e4f936ebadf3411d0f44 Nick Desaulniers (2): gcov: fix clang-11+ support gcov: clang: drop support for clang-10 and older kernel/gcov/Kconfig | 1 + kernel/gcov/clang.c | 32 ++++++++------------------------ 2 files changed, 9 insertions(+), 24 deletions(-) base-commit: f78d76e72a4671ea52d12752d92077788b4f5d50 -- 2.31.0.rc2.261.g7f71774620-goog