Prefixes for libgcc symbols (C6X 9.5/11)

[H.J. Lu]

On Fri, May 13, 2011 at 9:10 AM, Bernd Schmidt <bernds@codesourcery.com> wrote:
> On 05/13/2011 04:26 PM, Joseph S. Myers wrote:
>> On Fri, 13 May 2011, Bernd Schmidt wrote:
>>
>>> The following patch adds a target hook and a corresponding LIBGCC2_
>>> macro which control the generation of library function names. It also
>>> makes libgcc-std.ver a generated file, built from libgcc-std.ver.in by
>>> replacing some placeholders with the correct prefixes. While I was
>>> there, I also added functionality to generate a version of this file
>>> with an extra underscore for the Blackfin port.
>>
>> But the linker was changed to use C symbol names in linker scripts and I
>> was told that this script in GCC would be removed in consequence.
>>
>> http://sourceware.org/ml/binutils/2010-12/msg00375.html
>
> Oh well. Dropped.
>
>> Any new target macro for use only in target libraries should, in my view,
>> be poisoned in the host system.h from the start to ensure that no-one
>> accidentally adds definitions to the host tm.h.  This would be alongside
>> the existing
>>
>> /* Target macros only used for code built for the target, that have
>>    moved to libgcc-tm.h.  */
>>  #pragma GCC poison DECLARE_LIBRARY_RENAMES
>
> Done. New patch below, now testing.
>
>

I think it may have caused:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49160


-- 
H.J.