From patchwork Mon Nov 14 11:43:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Slaby X-Patchwork-Id: 19765 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp2098408wru; Mon, 14 Nov 2022 03:49:56 -0800 (PST) X-Google-Smtp-Source: AA0mqf4HhaIAt51VgrAgOI9nLFg+398zkHBjB+WkpUz6xPM7iRbiXbDj4cttnhZ2WMEiJrhZy6Ew X-Received: by 2002:a17:906:a450:b0:7ad:a3c6:6797 with SMTP id cb16-20020a170906a45000b007ada3c66797mr10200352ejb.665.1668426596286; Mon, 14 Nov 2022 03:49:56 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1668426596; cv=none; d=google.com; s=arc-20160816; b=0Omb2LhtiXr7NAeOWc1Afmo8uMqNu4TlmbjSREuJVZvp8d2L9JeQWuVDPZF/CjtxCN 5ZxCZIEXF35LbW0mUTAE6Qgn0HPKMGE8V29EutdR7H0iWzvCism2PgBKlKw/W9S0PWW7 fk562SSA33n5lDqSLWu6ZLh9NLJOlCuDAr4hRo2kXdnZdM80BGY1hVZK8vIiZIOx0DD3 inLSehohGJceN0araKK5xaZYNFPT8edSKoXzsu+SfYtw35S7HG3nwt7wRVQGFCIhbNOD b1rv7PEcDYflVTHAOT508cX7bqsWxnFcpe08FqV50mew+pmgsVLVs8aj+YmubzJOJ6g3 I7kw== 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=3i1STPuiGNu48uDX1Jx2DZLOnelbou1vTah7BljaFYs=; b=T0/aT1dKdj3ySQARNhebKS8NyzArImwBLALGSaB05HIBJiQEYoQ+dyaUxNw7KjgkoA anTbKiurWJvAUjwlKyBYC5zJ2q43nGXiOmvbfESQjzbEJefTYdfgBXPeDKtKJKHjaVfv ekDh7GGG2Sydq7t5yd8qUvN3s/cq01162xuIUstbwNg+7D2Y34VNXDMJBXD421lK7mjf vSxfk22/y/OCGEdpKpG79BT9kWdBeT505V8zoKX15VS6XW49Ddz1tXGwBjmLfgP6J4j5 8UJ26M3Z95hdwreB3XxIxCpHJk4LWBWsyV28Onn+sOINNMs1vWBNLZ4cRj2bAI0ntrxw tINg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=vH2xVVq9; 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 z14-20020a05640235ce00b004615855c483si8769784edc.98.2022.11.14.03.49.32; Mon, 14 Nov 2022 03:49:56 -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=vH2xVVq9; 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 S236866AbiKNLsV (ORCPT + 99 others); Mon, 14 Nov 2022 06:48:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236947AbiKNLra (ORCPT ); Mon, 14 Nov 2022 06:47:30 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07582222B4; Mon, 14 Nov 2022 03:45:30 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 9A2BC61093; Mon, 14 Nov 2022 11:45:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3DC2FC433B5; Mon, 14 Nov 2022 11:45:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668426329; bh=VHTSznvRU1NJt50Gn5cdfooru5h/hvP+AUl+sJEGPhU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vH2xVVq9a7oMkBu897W0gAjD0uxcCuvGq364us9j38XwBhoYpK8lFuUcFpiWDuxut Rsu0/3S/RibVjT4IyA5Ub6bRkMIFahMLJwEj0f0edsEqkwxelhgus+v7RrQCCfLaZl yen5wyyk4N+ExrJ4A27S61XQL3Gi4R11PvTXF6VSm+z9OG0ugUmGYAZ2tYiI+92bq8 VksRgFcyAPLh+LqhvXh0lLNY46bkwx/tzkFbOSiak1O6hcRKUI5jXUvXny8xqmM125 4+VUObmU1Ll+vN5aesZZUCHC75DdkqIjkZ5a+I8GAGHUQ4gfH9jf9Ytd/AE+00JKhF BioFZgDVl2A4w== From: "Jiri Slaby (SUSE)" To: linux-kernel@vger.kernel.org Cc: Andi Kleen , Masahiro Yamada , Michal Marek , Nick Desaulniers , linux-kbuild@vger.kernel.org, Martin Liska , Jiri Slaby Subject: [PATCH 38/46] Kbuild, lto: don't include weak source file symbols in System.map Date: Mon, 14 Nov 2022 12:43:36 +0100 Message-Id: <20221114114344.18650-39-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?1749472086176281372?= X-GMAIL-MSGID: =?utf-8?q?1749472086176281372?= From: Andi Kleen The gcc LTO build can generate some extra weak source code file name symbols on the second kallsyms link like: 0000000002fdf20a W head64.c.552cf5a6 This causes the "Inconsistent kallsyms data" error due to mismatches in the stage1 vs stage2 kallsyms link. Filter those out when generating the System.map. 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/mksysmap | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/mksysmap b/scripts/mksysmap index 16a08b8ef2f8..0f19a44ab136 100755 --- a/scripts/mksysmap +++ b/scripts/mksysmap @@ -34,6 +34,7 @@ # U - undefined global symbols # N - debugging symbols # w - local weak symbols +# W - weak symbols if they contain .c. # readprofile starts reading symbols when _stext is found, and # continue until it finds a symbol which is not either of 'T', 't', @@ -57,4 +58,5 @@ $NM -n $1 | grep -v \ -e ' __kstrtab_' \ -e ' __kstrtabns_' \ -e ' L0$' \ + -e ' W .*\.c\.' \ > $2