Re: Regression caused by checkin.

[Khem Raj <kraj at mvista dot com>]

Paul Brook wrote:

> On Friday 21 October 2005 20:51, Khem Raj wrote:
>  
>
> > Hi Nick
> >
> > While building glibc with latest binutils from CVS, gas reported an
> > error which was not there before. It is caused by this checkin
> >
> > http://sourceware.org/ml/binutils-cvs/2005-10/msg00047.html
> >
> > Here is a short test case from glibc to demonstrate the problem. This
> > assembles fine with assembler before this check in.
> >
> >
> > .globl foo
> > foo:
> > .long 0
> > .weak foo
> > foo = foo
> >    
>
> This has been fixed in recent glibc on most targets.
> Daniel Jacobowitz has patches for Arm.
>  
I believe he has not posted the patches yet.

The gcc 3.4 generated

   .text
.Ltext0:
   .weak    mcount
mcount = _mcount
......
       b mcount
      
for

extern __typeof (_mcount) mcount __attribute__ ((weak, alias ("_mcount")));

and assembler gave this error
Error: Local symbol `mcount' can't be equated to undefined symbol `_mcount'

This might be related to another patch from H. J. Lu.

> Paul
>  

--
Khem Raj <kraj@mvista.com>
MontaVista Software, Inc.
www.mvista.com