[RFA] Don't warn when using ld --wrap and code in Thumb-state on ARM

[H.J. Lu]

On Tue, Apr 6, 2010 at 1:23 PM, Ian Lance Taylor <iant@google.com> wrote:
> Alan Modra <amodra@gmail.com> writes:
>
>> On Mon, Mar 29, 2010 at 04:48:27PM +0100, Matthew Gretton-Dann wrote:
>>> However, this change in symbol type is usually allowed for function
>>> symbols - _bfd_elf_merge_symbol indicates this.  But in this case this
>>> hasn't been allowed because the test for both symbols being function
>>> type symbols is done after an early exit for weak symbols.
>>>
>>> The fix is to move the test for merging two function symbols, and so
>>> whether to allow a symbol type change earlier in _bfd_elf_merge_symbol.
>>
>> I'd rather see a fix to the check for weak versioned symbols.  Ian
>> added that code here:
>> cvs diff -r 1.10 -r 1.11 elflink.h
>
> http://sourceware.org/ml/binutils/1999-q3/msg00042.html
>
> and follow-ups.
>
>
>> And made a fix here:
>> cvs diff -r 1.19 -r 1.20 elflink.h
>
> http://sourceware.org/ml/binutils/1999-q3/msg00254.html
>
> and follow-ups.
>

FWIW, their testcases may be:

http://sourceware.org/ml/binutils/1999-q3/msg00030.html
http://sourceware.org/ml/binutils/1999-q3/msg00031.html

They are related to weak symbol handling in older glibc.
Newer glibc treats weak symbols in DSO as strong symbols.


-- 
H.J.