From patchwork Mon Nov 14 11:43:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Slaby X-Patchwork-Id: 19761 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp2098330wru; Mon, 14 Nov 2022 03:49:43 -0800 (PST) X-Google-Smtp-Source: AA0mqf5ekR3D0Z/GEpmvV6x2vub7o2C0bM4IRwa3tuxzvb04bo7PeWM8iHvk9GuUiilTicCC2oZY X-Received: by 2002:a50:d0d0:0:b0:459:2d37:dfbd with SMTP id g16-20020a50d0d0000000b004592d37dfbdmr11017185edf.336.1668426583506; Mon, 14 Nov 2022 03:49:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1668426583; cv=none; d=google.com; s=arc-20160816; b=RypQs1OS3rPg33Fz3CAfBGgj7QUNh4rFyx+31UQ40XleUG4hXGZuFUSWN+mpFZkhHI Icj722vjCPAQRxR1cZZnfNbVoF8TBI4X7fazKiclgT0gMdDz2KCtuvx4iRfWWSHDJY// k1Bm2JBUvlDbmiG+OaRjk32nbPaDDMIUW0XOIErRX7x3yMmzCepWLmR2fCfOPOc+RvrW JH/+6qSiBChIfaevBNImLRTmS49OTeSKU6ccnDODJNiK38MLhUkD21+UfPWlNgvtsGDv gxhYUYLu06yoQxtYkYM4a0JEinBB/1a8mqNa3oE1XnENh8rXaYPTGH/C7Dtacv92Q83Z 1jJw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=6Ezq5SFDYzCCTWSyWKFzFvPjHZwQb/GJmO95NlsqwJg=; b=NLj6gea0WgZGWUaBc6Zi5/ElQ7LWLO9MQZMHxBMEh/z4vPhKHZFFE6wFCkGpfJX+Bf 5w6a8DElHpIbl4AJBJLXNPDqOy3DYf3vdJwg3m+ests2IB9cmw8kyjTGOG0B/cgbL+y0 QHzlrwARd8L0jBQ2Zy4Bxzxay1+2zRlwh2QQxN/cSpK2HFggXV2N0ojgLbTc+yjlCems gXhReyivcTvYSWpeO8nG9v7d3J+/FOeNM+uJ9/ZCXDFpvA+xT1rJNk3Z2TI5VgJYH/NR ZJOdR1/80qPj0qDDtTYfHMOvtQyr68d86WGNLlm9Q2dEPKa6av9RWDH9fQnLdYB8v+Gy A7uA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=F4KLVe8Q; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id wu14-20020a170906eece00b007a8dddc7ec8si9196521ejb.382.2022.11.14.03.49.20; Mon, 14 Nov 2022 03:49:43 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=F4KLVe8Q; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236623AbiKNLsE (ORCPT + 99 others); Mon, 14 Nov 2022 06:48:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236874AbiKNLrM (ORCPT ); Mon, 14 Nov 2022 06:47:12 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9488E25EBD; Mon, 14 Nov 2022 03:45:23 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 45B37B80E26; Mon, 14 Nov 2022 11:45:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF98FC433C1; Mon, 14 Nov 2022 11:45:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668426320; bh=DJF+imgy2HAxwvL4BHvytn2wHCCnLG9Lu7S4hynUjxw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F4KLVe8QD97rdiLvx0ybBKluX02uyPznww0DIzficAchO+9g5a627u9P/z0nD682k OtGx4Ppr4+qjnsK0CkMv+SJsF0CikUkpWdPEu+cbAUS9yjVgtS+Us8ZZVPC4LU1JPv b/N4tv8tXiXLdB6DTEZ4/BkwygPZqexBuh20hhiOgsgGptRq0/GoyA0HFXDr5URhsZ DxACqxfyXs4loradezI38i/S0zOEhS/+Q/nDm3n/ltR8xMwKH8R9r1WwM1F3XKjqw/ Kb3EVH4XNqZyglviCHlikYMRMFV+K+T9v2iDSBhFPuODIOEC2c9zsk8bnkcJfhc1iZ LEZf0p+BLa2nA== From: "Jiri Slaby (SUSE)" To: linux-kernel@vger.kernel.org Cc: Andi Kleen , Masahiro Yamada , Michal Marek , Nick Desaulniers , linux-kbuild@vger.kernel.org, Andi Kleen , Martin Liska , Jiri Slaby Subject: [PATCH 34/46] scripts, lto: disable gcc LTO for some mod sources Date: Mon, 14 Nov 2022 12:43:32 +0100 Message-Id: <20221114114344.18650-35-jirislaby@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221114114344.18650-1-jirislaby@kernel.org> References: <20221114114344.18650-1-jirislaby@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749472072853920625?= X-GMAIL-MSGID: =?utf-8?q?1749472072853920625?= From: Andi Kleen The mod tools scan assembler (devicetable-offsets.s) to generate symbols into devicetable-offsets.h and binary (empty.o) to find out ELF setup. That doesn't work with LTO. So just disable LTO for empty.o and devicetable-offsets.s. Cc: Masahiro Yamada Cc: Michal Marek Cc: Nick Desaulniers Cc: linux-kbuild@vger.kernel.org Signed-off-by: Andi Kleen Signed-off-by: Martin Liska Signed-off-by: Jiri Slaby --- scripts/mod/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index c9e38ad937fd..aa3465d6bc4a 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 OBJECT_FILES_NON_STANDARD := y CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO) +CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO_GCC) hostprogs-always-y += modpost mk_elfconfig always-y += empty.o @@ -9,6 +10,8 @@ modpost-objs := modpost.o file2alias.o sumversion.o devicetable-offsets-file := devicetable-offsets.h +$(obj)/devicetable-offsets.s: KBUILD_CFLAGS += $(DISABLE_LTO_GCC) + $(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE $(call filechk,offsets,__DEVICETABLE_OFFSETS_H__)