linux-kernel - Re: [PATCH v3] scripts: Create objdump-func helper script

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Message-ID: <20220421085244.GL2731@worktop.programming.kicks-ass.net>
Date:   Thu, 21 Apr 2022 10:52:44 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Miroslav Benes <mbenes@...e.cz>, Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v3] scripts: Create objdump-func helper script

On Wed, Apr 20, 2022 at 10:16:36AM -0700, Josh Poimboeuf wrote:

> +${OBJDUMP} -wdr $OBJ | gawk -M -v f=$FUNC '/^$/ { P=0; } $0 ~ "<" f ">:" { P=1; O=strtonum("0x" $1); } { if (P) { o=strtonum("0x" $1); printf("%04x ", o-O); print $0; } }'

Two noteworthy changes:

 - $@ went missing, I've occasionally abused that to add extra argument
   to objdump.

 - you removed the glob after FUNC, I had that so that .cold and
   .constprop etc.. variants of the function also show up.

I don't suppose either one are super important, but esp. that latter one
has been convenient.