From: Steven Rostedt <rostedt@goodmis.org>
To: Li Hong <lihong.hi@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9] tracing: recordmcount.pl Remove the redundant code
Date: Tue, 27 Oct 2009 16:51:41 -0400 [thread overview]
Message-ID: <1256676701.26028.465.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <20091027070540.GI22032@uhli>
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@gmail.com>
> 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@gmail.com>
>
> 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.
next prev parent reply other threads:[~2009-10-27 20:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 6:54 [PATCH 1/9] tracing: recordmcount.pl Amend the documentation according to the implementation Li Hong
2009-10-27 6:57 ` [PATCH 2/9] tracing: recordmcount.pl Correct the check on the number of parameters Li Hong
2009-10-30 16:19 ` [tip:tracing/core] tracing: Correct the check for number of arguments in recordmcount.pl tip-bot for Li Hong
2009-10-27 6:58 ` [PATCH 3/9] tracing: recordmcount.pl Support absolute path check on $inputfile Li Hong
2009-10-27 20:12 ` Steven Rostedt
2009-10-27 7:00 ` [PATCH 4/9] tracing: recordmcount.pl Objcopy check should disable local reference correctly Li Hong
2009-10-27 20:16 ` Steven Rostedt
2009-10-27 7:01 ` [PATCH 5/9] tracing: recordmcount.pl Clarify the logic on mcount section check Li Hong
2009-10-27 20:18 ` Steven Rostedt
2009-10-27 7:02 ` [PATCH 6/9] tracing: recordmcount.pl Exit early if no work to do Li Hong
2009-10-27 20:20 ` Steven Rostedt
2009-10-27 7:03 ` [PATCH 7/9] tracing: recordmcount.pl Combine the condition validation in update_funcs Li Hong
2009-10-27 20:22 ` Steven Rostedt
2009-10-27 7:04 ` [PATCH 8/9] tracing: recordmcount.pl We won't use weak function as reference, remove the check Li Hong
2009-10-27 20:25 ` Steven Rostedt
2009-10-27 7:05 ` [PATCH 9/9] tracing: recordmcount.pl Remove the redundant code Li Hong
2009-10-27 20:51 ` Steven Rostedt [this message]
2009-10-27 20:04 ` [PATCH 1/9] tracing: recordmcount.pl Amend the documentation according to the implementation Steven Rostedt
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