linux-kernel - Re: [PATCH] tools/perf: Increase symbol KSYM_NAME

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Message-ID: <CAOJsxLEY2YJv5G7nRKzM4UowVpPQrXKzmzP6eVShaXFYDySZ2A@mail.gmail.com>
Date:	Thu, 20 Oct 2011 12:14:06 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Cc:	Cyrill Gorcunov <gorcunov@...il.com>, a.p.zijlstra@...llo.nl,
	paulus@...ba.org, mingo@...e.hu, acme@...stprotocols.net,
	anton@...ba.org, daahern@...co.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/perf: Increase symbol KSYM_NAME_LEN size

On Thu, Oct 20, 2011 at 11:45 AM, Ricardo Ribalda Delgado
<ricardo.ribalda@...il.com> wrote:
> That is 4gb size :S..... I have tried making a dummy program
>
> int tttttt......ttttt (int a, int b){
> return a+b;
> }
>
> int main(int arg, char *[]argv){
>    return tttt....tttt(1,2);
> }
>
> and it has worked at least until t^16384 both in gcc and in gdb, and I
> guess it would have continue working until much more.
>
> Right now, I think we can increase it until 512, to be on the safe
> side, and keep it simple. What do you think?

If the limit is really 4G, I'm fine with whatever is the smallest
practical size. If 256 bytes works for you:

Acked-by: Pekka Enberg <penberg@...nel.org>
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