[patch] PR40134, use a linker script on arm-linux to link with -lgcc_s -lgcc

[Dave Korn]

Jakub Jelinek wrote:
> On Tue, Jul 07, 2009 at 01:01:03PM +0100, Dave Korn wrote:
>>> The major exception here are the dfp bits, here I'd think we should remove
>>> them from libgcc.a and put into libgcc_dfp.a or something similar
>>> (and have libgcc_dfp.so too).
>>   Argh.  We don't have DFP on cygwin yet but probably want to add support
>> soon.  What's the issue with this?  Shouldn't those kind of simple maths
>> routines be in the shared libgcc and linked from there anyway?
> 
> Certainly not, it is huge and rarely used.
> E.g. on i?86-linux, linking all of libgcc.a objects except bid*.o into a
> shared library is ~ 80KB .text, .5 KB .rodata, with the dfp stuff also in
> it is ~ 900KB of .text, ~ 1.9 MB .rodata.  As libgcc_s is linked into a huge
> number of apps, this would be certainly not acceptable.

  Wow, never realised it was so big.  Putting it in its own .so certainly
makes sense to me.  (Reassured to know it's just the size, and not a
correctness issue.)

    cheers,
      DaveK