Received: by 2002:a25:31c3:0:0:0:0:0 with SMTP id x186csp1051601ybx; Thu, 7 Nov 2019 06:35:20 -0800 (PST) X-Google-Smtp-Source: APXvYqyr8zSrixR7LP0lUR/VcU4dTm/itteABZmdPBC7WdUXgtMe29OAl2XDP8tJeeowlGs/btwp X-Received: by 2002:aa7:c493:: with SMTP id m19mr3926102edq.39.1573137320160; Thu, 07 Nov 2019 06:35:20 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1573137320; cv=none; d=google.com; s=arc-20160816; b=vU7S1BtNSIqSfjJS7ix9rdullX0bI2VM/FutbC0t5XaZWqcuDLiyPOgQbuU2tqlzEe Gau5JrdWAyCK0iL8e3aaMqlNF86egfmhZG9Bm/T73eiCRig9FcmLufUDmjfPru4wr1Qu jqGUPj8n9LFv+AKOVfBrod2WsTWQ4lJe/Lhn98N4G4Bpc/13Sc59lXpZkS9yy1u++417 3OBVnTNpwZjm6r8MnSPoJQA2+O/Ug+jIq2erAbyd9PGE0kM5eHHhaIZ8m7vFLyHO7cne GC9cItwg8xeCP2HMi5KG/FakwQLJIcoyQKx76Zwb3kLDhErgOzfkfk8o2+xd4OXU46iI ZFaA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=tmFa95niB0RfcbLfGV0euiWHp6J10L7b9CwfKkarUuw=; b=TwGrMkapn6ZmYoTzL2EIbLlq44kCVaQ0SbVZ/vUaf6b2JpsYLoIbk4NaeDVY+fml/H cX0Z/SoQH/PF+IPIzGpztsS0u8vQjjtAZJrzylzMHwMgIyp0WJ1w5cpkUYnBXW+rpFVO jtveoC7tHQaxdWOLVA+420cPn1JhuvWeeeSacepdY1Bczwc7UQl10/wqmC3j1OqQESYx rDYrn4u4D+Ei9kojUV2O5cKKa/vwB8nxveQ4JKX5xSgySf+h1XPeweR7ZDA9YYJXkJg4 v6JINfxqr9C1vfwMZifnsCE9l4LLV5+QMp/XYkzhfuKrLenZTmTAc+B2S4m+OHavDw5t eoTA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id ce3si1725267edb.441.2019.11.07.06.34.55; Thu, 07 Nov 2019 06:35:20 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389455AbfKGOdB (ORCPT + 99 others); Thu, 7 Nov 2019 09:33:01 -0500 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]:60222 "EHLO out30-45.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389190AbfKGOdB (ORCPT ); Thu, 7 Nov 2019 09:33:01 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07487;MF=shile.zhang@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0ThQoCKT_1573137161; Received: from e18g09479.et15sqa.tbsite.net(mailfrom:shile.zhang@linux.alibaba.com fp:SMTPD_---0ThQoCKT_1573137161) by smtp.aliyun-inc.com(127.0.0.1); Thu, 07 Nov 2019 22:32:58 +0800 From: shile.zhang@linux.alibaba.com To: Masahiro Yamada , Michal Marek , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Josh Poimboeuf , x86@kernel.org Cc: "H . Peter Anvin" , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, Shile Zhang Subject: [RFC PATCH 4/4] x86/Kconfig: Add a Kconfig option to sort ORC tables at build time Date: Thu, 7 Nov 2019 22:32:05 +0800 Message-Id: <20191107143205.206606-5-shile.zhang@linux.alibaba.com> X-Mailer: git-send-email 2.24.0.rc2 In-Reply-To: <20191107143205.206606-1-shile.zhang@linux.alibaba.com> References: <20191107143205.206606-1-shile.zhang@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shile Zhang Add a new Kconfig BUILDTIME_ORCTABLE_SORT to control the ORC unwind tables at build time. Select for ORC unwinder on x86_64 by default. Signed-off-by: Shile Zhang --- arch/x86/Kconfig.debug | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index bf9cd83de777..320ff2af4837 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -335,6 +335,15 @@ config UNWINDER_GUESS endchoice +config BUILDTIME_ORCTABLE_SORT + bool "Sort ORC unwind tables at build time" + depends on X86_64 + depends on UNWINDER_ORC + default y + help + This option enables the build-time sorting for ORC unwind tables. It + can help to speed up kernel boot by skip the runtime sorting. + config FRAME_POINTER depends on !UNWINDER_ORC && !UNWINDER_GUESS bool -- 2.24.0.rc2