Re: [PATCH 1/2] Add thread_info_cache_init() to all archs

From: Andrew Morton
Date: Wed May 21 2008 - 17:00:29 EST

On Wed, 21 May 2008 15:44:41 -0400
Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Wed, 2008-05-21 at 11:41 -0700, Andrew Morton wrote:
> >
> > yup, gcc bug. Discussed recently on lkml, "Subject: Re: huge gcc
> > 4.1.{0,1} __weak problem". I don't think anything ended up happening
> > about it though.
> Hrm... do you think we should work around ? ie. move the stubs to a
> separate .c file ?

istr that sticking an asm(""); in the weak function was a reliable
workaround. If we are going to to that it should be via

/* comment goes here */
#define gcc_screws_up_weak_stuff() asm("")

but that approach didn't seem very popular. It's a _bit_ fragile I
guess, but it's pretty easy to grep for missed workarounds.

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