Re: [PATCH 9/9] tracing: recordmcount.pl Remove the redundant code

From: Steven Rostedt
Date: Tue Oct 27 2009 - 16:51:53 EST


On Tue, 2009-10-27 at 15:05 +0800, Li Hong wrote:
> >From d0aa71d523b6315fd3ea0ee66fddb020a625856f Mon Sep 17 00:00:00 2001
> From: Li Hong <lihong.hi@xxxxxxxxx>
> Date: Tue, 27 Oct 2009 13:28:53 +0800
> Subject: [PATCH] tracing: recordmcount.pl Remove the redundant code
>
> If an object file has some local symbols and objcopy doesn't support local
> reference, we have exited before the real work starts. So remove the redundant
> check in update_funcs.

Are you sure? Where does it exit? Even if I add patch 6, you can still
have a section that does not have any globals in it.

-- Steve

>
> Signed-off-by: Li Hong <lihong.hi@xxxxxxxxx>
>
> diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
> index 867c24a..ff3a9eb 100755
> --- a/scripts/recordmcount.pl
> +++ b/scripts/recordmcount.pl
> @@ -353,14 +353,7 @@ sub update_funcs
> return unless ($ref_func and @offsets);
>
> # is this function static? If so, note this fact.
> - if (defined $locals{$ref_func}) {
> -
> - # only use locals if objcopy supports globalize-symbols
> - if (!$can_use_local) {
> - return;
> - }
> - $convert{$ref_func} = 1;
> - }
> + $convert{$ref_func} = 1 if $locals{$ref_func};
>
> # Loop through all the mcount caller offsets and print a reference
> # to the caller based from the ref_func.

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