From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: RFC: Use single pass kallsyms Date: Fri, 9 Aug 2013 09:03:16 -0700 Message-ID: <1376064199-8296-1-git-send-email-andi@firstfloor.org> Return-path: Sender: linux-kbuild-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-kbuild@vger.kernel.org, david.daney@cavium.com List-Id: linux-arch.vger.kernel.org This is my attempt to avoid extra link steps for kallsyms. Originally for LTO (where it gives dramatic build time improvements), but it also gives a nice build speedup on a standard build (-10s on my laptop) Even with this we still link two times (one more for modpost), but this may be eventually fixable too. Right now this is an RFC, I'm particularly interested in testing on more architectures. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com ([134.134.136.24]:39773 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934068Ab3HIQDb (ORCPT ); Fri, 9 Aug 2013 12:03:31 -0400 From: Andi Kleen Subject: RFC: Use single pass kallsyms Date: Fri, 9 Aug 2013 09:03:16 -0700 Message-ID: <1376064199-8296-1-git-send-email-andi@firstfloor.org> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-kbuild@vger.kernel.org, david.daney@cavium.com Message-ID: <20130809160316.Jkio4s0eU1DMHhuSVk3lhoEXj7Niq2iqK_3QhkH5dy4@z> This is my attempt to avoid extra link steps for kallsyms. Originally for LTO (where it gives dramatic build time improvements), but it also gives a nice build speedup on a standard build (-10s on my laptop) Even with this we still link two times (one more for modpost), but this may be eventually fixable too. Right now this is an RFC, I'm particularly interested in testing on more architectures.