linux-kernel - Re: [PATCH v2] tags: include headers before source files

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Date:	Wed, 17 Feb 2010 14:05:08 +0100
From:	Michal Marek <mmarek@...e.cz>
To:	Guennadi Liakhovetski <g.liakhovetski@....de>
Cc:	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH v2] tags: include headers before source files

On 8.2.2010 00:25, Guennadi Liakhovetski wrote:
> Currently looking up a structure definition in TAGS / tags takes one to
> one of multiple "static struct X" definitions in arch sources, which makes
> it for many structs practically impossible to get to the required header.
> This patch changes the order of sources being tagged to first scan
> architecture includes, then the top-level include/ directory, and only
> then the rest. It also takes into account, that many architectures have
> more than one include directory, i.e., not only arch/$ARCH/include, but
> also arch/$ARCH/mach-X/include etc.
> 
> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@....de>
> Reviewed-by: WANG Cong <xiyou.wangcong@...il.com>
> ---
> 
> v1 -> v2:
> 
> 1. check if $include variable is not empty - thanks, Michal, for testing

Thanks, applied with the following change added (+= is a bash extension):

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 6f0985d..c122041 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -33,7 +33,7 @@ fi
 find_arch_sources()
 {
        for i in $archincludedir; do
-               prune+="-wholename $i -prune -o "
+               prune="$prune -wholename $i -prune -o"
        done
        find ${tree}arch/$1 $ignore $prune -name "$2" -print;
 }
@@ -43,7 +43,7 @@ find_arch_include_sources()
 {
        include=$(find ${tree}arch/$1/ -name include -type d);
        if [ -n "$include" ]; then
-               archincludedir+="$include "
+               archincludedir="$archincludedir $include"
                find $include $ignore -name "$2" -print;
        fi
 }

Michal
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