Re: CVS commit: src/libexec/ld.elf_so/arch/powerpc

[Chuck Silvers <chuq%chuq.com@localhost>]

On Fri, Oct 28, 2011 at 07:53:22AM +0100, David Laight wrote:
> On Wed, Oct 26, 2011 at 03:56:58PM +0000, Chuck Silvers wrote:
> > Module Name:        src
> > Committed By:       chs
> > Date:               Wed Oct 26 15:56:58 UTC 2011
> > 
> > Modified Files:
> >     src/libexec/ld.elf_so/arch/powerpc: Makefile.inc
> > 
> > Log Message:
> > avoid linker warnings with the new binutils by not forcing ld.elf_so
> > to be soft-float.  the floating-point usage in ld.elf_so is only
> > because of stdarg functions like printf(), and gcc 4.5 is good
> > about not actually executing the FP instructions in such functions
> > unless FP values are passed to them, which ld.elf_so doesn't do.
> 
> I thought gcc had a habit of using FP registers for memory copy?
> (Or some other integer-only action)
> Or is that only a problem with specific architectures due to the
> way the instruction set has been defined to gcc.

that kind of thing is always platform-specific.
the only FP instructions that I see in ld.elf_so on powerpc are for stdarg 
stuff,
so it doesn't look like it's a problem here.

-Chuck