linux-kernel - Re: [PATCH] scripts : mksysmap : NM variable missed the value,so fixed

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Message-ID: <20191017171006.GA4995@Gentoo>
Date:   Thu, 17 Oct 2019 22:40:09 +0530
From:   Bhaskar Chowdhury <unixbhaskar@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     yamada.masahiro@...ionext.com, michal.lkml@...kovi.net,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org
Subject: Re: [PATCH] scripts : mksysmap : NM variable missed the value,so
 fixed

On 08:48 Thu 17 Oct 2019, Randy Dunlap wrote:
>On 10/17/19 3:25 AM, Bhaskar Chowdhury wrote:
>> This patch will provide the missing value for NM variable.
>> 
>
>Hi,
>
>Does this patch fix some build error that you have encountered?
>If so, please describe it and how to cause it.
>
Okay, I tried to do that ,the script spit out not finding the nm.
Now, the sole reason being I misread it in the first place.
>
>> Signed-off-by: Bhaskar Chowdhury <unixbhaskar@...il.com>
>> ---
>> TO all,
>> Adjusted the subject line, missed in previous one,sorry
>> 
>>  scripts/mksysmap | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/scripts/mksysmap b/scripts/mksysmap
>> index a35acc0d0b82..4b2f45c45f14 100755
>> --- a/scripts/mksysmap
>> +++ b/scripts/mksysmap
>> @@ -40,5 +40,5 @@
>>  # 'W' or 'w'. __crc_ are 'A' and placed in the middle
>>  # so we just ignore them to let readprofile continue to work.
>>  # (At least sparc64 has __crc_ in the middle).
>> -
>> +NM=$(which nm)
>
>That's not the POSIX way to do that.  It should be
>
>NM=$(command -v nm)
>
>But why is this needed at all?
>The top-level Makefile exports the NM variable (and many more) to scripts
>that it calls.
>
Misread it. 
>>  $NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( .L\)' > $2
>> --
>> 2.21.0
>> 
>
Sorry about the noise. Thanks Randy for catch up lackluster stuff.
>
>-- 
>~Randy
>

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