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=-15.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable 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 D6E26C433E0 for ; Wed, 24 Feb 2021 20:19:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 94AB060202 for ; Wed, 24 Feb 2021 20:19:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235513AbhBXUSz (ORCPT ); Wed, 24 Feb 2021 15:18:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235728AbhBXUSG (ORCPT ); Wed, 24 Feb 2021 15:18:06 -0500 Received: from mail-oi1-x22e.google.com (mail-oi1-x22e.google.com [IPv6:2607:f8b0:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C529C061574; Wed, 24 Feb 2021 12:17:26 -0800 (PST) Received: by mail-oi1-x22e.google.com with SMTP id 18so3715765oiz.7; Wed, 24 Feb 2021 12:17:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ylNlgfdcvRYOD6kXq/95XnGE6RgCAMqXvQ1uBMMg7TU=; b=RhNsZyzXgtTZGyid5j7nVxfjC5vdc5cxSATcD8rc+cg00YD/Uu1qopgE0wLckdrrfh AMbMPE6l42p5jtO2qEMlB6RBoiy/u6oeOfBKxB9YDRU+CyIdVN+OqiFMfONkZ5OBUyJT pYqWHcQ9YjSGTuxG6MK2ztRqiuOxyxd7MkbB895Aoxto9JgmmfUqRh2iu5hVc54oWKUI Gq97bliEvUmmhPnIPYtuOBB/ESNbs1xmeQ5jhfh/sAVUw4iaxufO7htAed0SwH5o4oJe scdddBN+FqryhHDKlk8OmTM346/xXlWpfcKrSkUNbd9PEEnxF6oU6vnbhOaAA+zbLoP9 RTHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=ylNlgfdcvRYOD6kXq/95XnGE6RgCAMqXvQ1uBMMg7TU=; b=YGC7euZ5PUqaO7Xk+uCvufUqnIKXA2RBj6FjYNmpe29GjRa9zcy2/91LbNfrlu8JJi 67FqRsz09rCaIFgAiQ/S+xAY98+cN0XNFbM/OPh1HvyKZ7jGRT/0iDF36yxQ4iRmnf5S lIte+f2olPsa2VFMVQcE/Dq/2kLSdEhl57oEvaNh2zUCmqlGBBbs6AtqPmiQDHqEw822 FWhKKosySqiDZgQqLDBFzeJW7A0qRYFkOe1SBeU4qkY0i1TJqP4vPehIdyvEC9Ukf+so TIQKUzBmHu5/dWOS/9FKuGp/fSZNaE31yhCC1sSxk16CRUC5iCv2H03jHRn189QmPola tcMA== X-Gm-Message-State: AOAM5324hpkIL5vSocIcPEx6ITCxnKxoEZYpOrRU0V1rKz5GkL34DPKI 1xf+9oL08N+PB/xjSzdnRhI= X-Google-Smtp-Source: ABdhPJzDBcW556aZO7mgeeunZgHfhSVx/5GFriwJvwVEbAj9sOwTknCGBEak65KhGzHJp7g/DrTp8Q== X-Received: by 2002:aca:ad0d:: with SMTP id w13mr3743625oie.170.1614197845430; Wed, 24 Feb 2021 12:17:25 -0800 (PST) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id n93sm572233ota.37.2021.02.24.12.17.24 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 24 Feb 2021 12:17:24 -0800 (PST) Sender: Guenter Roeck Date: Wed, 24 Feb 2021 12:17:23 -0800 From: Guenter Roeck To: Sami Tolvanen Cc: Masahiro Yamada , Steven Rostedt , Will Deacon , Josh Poimboeuf , Peter Zijlstra , Greg Kroah-Hartman , "Paul E. McKenney" , Kees Cook , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-parisc@vger.kernel.org, Helge Deller Subject: Re: [PATCH v9 01/16] tracing: move function tracer options to Kconfig (causing parisc build failures) Message-ID: <20210224201723.GA69309@roeck-us.net> References: <20201211184633.3213045-1-samitolvanen@google.com> <20201211184633.3213045-2-samitolvanen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201211184633.3213045-2-samitolvanen@google.com> User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Fri, Dec 11, 2020 at 10:46:18AM -0800, Sami Tolvanen wrote: > Move function tracer options to Kconfig to make it easier to add > new methods for generating __mcount_loc, and to make the options > available also when building kernel modules. > > Note that FTRACE_MCOUNT_USE_* options are updated on rebuild and > therefore, work even if the .config was generated in a different > environment. > > Signed-off-by: Sami Tolvanen > Acked-by: Steven Rostedt (VMware) With this patch in place, parisc:allmodconfig no longer builds. Error log: Arch parisc is not supported with CONFIG_FTRACE_MCOUNT_RECORD at scripts/recordmcount.pl line 405. make[2]: *** [scripts/mod/empty.o] Error 2 Due to this problem, CONFIG_FTRACE_MCOUNT_RECORD can no longer be enabled in parisc builds. Since that is auto-selected by DYNAMIC_FTRACE, DYNAMIC_FTRACE can no longer be enabled, and with it everything that depends on it. Bisect log attached. Guenter --- # bad: [414eece95b98b209cef0f49cfcac108fd00b8ced] Merge tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux # good: [b12b47249688915e987a9a2a393b522f86f6b7ab] Merge tag 'powerpc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux git bisect start '414eece95b98' 'b12b47249688' # bad: [f6e1e1d1e149802ed4062fa514c2d184d30aacdf] Merge tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 git bisect bad f6e1e1d1e149802ed4062fa514c2d184d30aacdf # bad: [79db4d2293eba2ce6265a341bedf6caecad5eeb3] Merge tag 'clang-lto-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux git bisect bad 79db4d2293eba2ce6265a341bedf6caecad5eeb3 # good: [9d5032f97e9e0655e8c507ab1f43237e31520b00] dt-bindings: mediatek: mt8192: Fix dt_binding_check warning git bisect good 9d5032f97e9e0655e8c507ab1f43237e31520b00 # good: [f81f213850ca84b3d5e59e17d17acb2ecfc24076] Merge tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmi git bisect good f81f213850ca84b3d5e59e17d17acb2ecfc24076 # bad: [112b6a8e038d793d016e330f53acb9383ac504b3] arm64: allow LTO to be selected git bisect bad 112b6a8e038d793d016e330f53acb9383ac504b3 # bad: [3578ad11f3fba07e64c26d8db68cfd3dde28c59e] init: lto: fix PREL32 relocations git bisect bad 3578ad11f3fba07e64c26d8db68cfd3dde28c59e # bad: [22d429e75f24d114d99223389d6ba7047e952e32] kbuild: lto: limit inlining git bisect bad 22d429e75f24d114d99223389d6ba7047e952e32 # bad: [dc5723b02e523b2c4a68667f7e28c65018f7202f] kbuild: add support for Clang LTO git bisect bad dc5723b02e523b2c4a68667f7e28c65018f7202f # bad: [3b15cdc15956673ba1551d79bceae471436ac6a9] tracing: move function tracer options to Kconfig git bisect bad 3b15cdc15956673ba1551d79bceae471436ac6a9 # first bad commit: [3b15cdc15956673ba1551d79bceae471436ac6a9] tracing: move function tracer options to Kconfig