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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 CFF9ACA9EAF for ; Sun, 27 Oct 2019 21:04:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A3E57214E0 for ; Sun, 27 Oct 2019 21:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210283; bh=OEMEAnqXLXECNbzBi+S+06vmw7HQa6AKkVWSqlb1UlM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vwTHGTlRwBNlHfsn9D8X2/QbB5DcxlDnJbtXa8E4qD1rvrK0dBZgRiAXb5umTh9j8 YYQ5XnqnXmzABO+C0Yk1kkyLfqCFu+MKQy16HLjh0VwM9MTcYa7wT9heIDNzGFmgjB XrokMYdWfiSVR3otiYgANngdU3mMJEYDW0FBf0zY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727570AbfJ0VEm (ORCPT ); Sun, 27 Oct 2019 17:04:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:50384 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727275AbfJ0VEl (ORCPT ); Sun, 27 Oct 2019 17:04:41 -0400 Received: from localhost (100.50.158.77.rev.sfr.net [77.158.50.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CB7DA2064A; Sun, 27 Oct 2019 21:04:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210280; bh=OEMEAnqXLXECNbzBi+S+06vmw7HQa6AKkVWSqlb1UlM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x3nzn7YV7wXweFLKfSqJY3Ifonl5iei8eQRMxdVh0S5KLBouQI7Bp3HLu9V14IJOF kHuqf0cQe2HjpIKXqZHxilej4YesTHc9+9uQqQZsSU4yOfoyCHpvk0T5oH1SKqlJR+ GU8FRNApJPkKkeYTqe8IveQ8MxrXCqcM8F/KQ3to= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jacob Keller , Randy Dunlap , Masahiro Yamada , Sasha Levin Subject: [PATCH 4.9 11/49] namespace: fix namespace.pl script to support relative paths Date: Sun, 27 Oct 2019 22:00:49 +0100 Message-Id: <20191027203126.358110065@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191027203119.468466356@linuxfoundation.org> References: <20191027203119.468466356@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jacob Keller [ Upstream commit 82fdd12b95727640c9a8233c09d602e4518e71f7 ] The namespace.pl script does not work properly if objtree is not set to an absolute path. The do_nm function is run from within the find function, which changes directories. Because of this, appending objtree, $File::Find::dir, and $source, will return a path which is not valid from the current directory. This used to work when objtree was set to an absolute path when using "make namespacecheck". It appears to have not worked when calling ./scripts/namespace.pl directly. This behavior was changed in 7e1c04779efd ("kbuild: Use relative path for $(objtree)", 2014-05-14) Rather than fixing the Makefile to set objtree to an absolute path, just fix namespace.pl to work when srctree and objtree are relative. Also fix the script to use an absolute path for these by default. Use the File::Spec module for this purpose. It's been part of perl 5 since 5.005. The curdir() function is used to get the current directory when the objtree and srctree aren't set in the environment. rel2abs() is used to convert possibly relative objtree and srctree environment variables to absolute paths. Finally, the catfile() function is used instead of string appending paths together, since this is more robust when joining paths together. Signed-off-by: Jacob Keller Acked-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Masahiro Yamada Signed-off-by: Sasha Levin --- scripts/namespace.pl | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/scripts/namespace.pl b/scripts/namespace.pl index 9f3c9d47a4a5d..4dddd4c01b625 100755 --- a/scripts/namespace.pl +++ b/scripts/namespace.pl @@ -65,13 +65,14 @@ require 5; # at least perl 5 use strict; use File::Find; +use File::Spec; my $nm = ($ENV{'NM'} || "nm") . " -p"; my $objdump = ($ENV{'OBJDUMP'} || "objdump") . " -s -j .comment"; -my $srctree = ""; -my $objtree = ""; -$srctree = "$ENV{'srctree'}/" if (exists($ENV{'srctree'})); -$objtree = "$ENV{'objtree'}/" if (exists($ENV{'objtree'})); +my $srctree = File::Spec->curdir(); +my $objtree = File::Spec->curdir(); +$srctree = File::Spec->rel2abs($ENV{'srctree'}) if (exists($ENV{'srctree'})); +$objtree = File::Spec->rel2abs($ENV{'objtree'}) if (exists($ENV{'objtree'})); if ($#ARGV != -1) { print STDERR "usage: $0 takes no parameters\n"; @@ -231,9 +232,9 @@ sub do_nm } ($source = $basename) =~ s/\.o$//; if (-e "$source.c" || -e "$source.S") { - $source = "$objtree$File::Find::dir/$source"; + $source = File::Spec->catfile($objtree, $File::Find::dir, $source) } else { - $source = "$srctree$File::Find::dir/$source"; + $source = File::Spec->catfile($srctree, $File::Find::dir, $source) } if (! -e "$source.c" && ! -e "$source.S") { # No obvious source, exclude the object if it is conglomerate -- 2.20.1