Regression caused by checkin.

[Khem Raj]

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