recent binutils and mips64-linux

[Daniel Jacobowitz]

On Tue, Sep 23, 2003 at 12:45:36PM -0700, Zack Weinberg wrote:
> Daniel Jacobowitz <dan@debian.org> writes:
> 
> > On Tue, Sep 23, 2003 at 11:01:11AM -0700, Eric Christopher wrote:
> >> 
> >> I'm still trying to figure out why you are going through such weird
> >> contortions at all. I understand not having an elf64 loader. That's what
> >> the objcopy comment was for, everything else I don't understand. Why not
> >> compile for the abi you want?
> >
> > Compare the optimal way to load an address into a register when you
> > have a full 64-bit address space and when you know that addresses are
> > sign extended.  I'm told it saves over 100K of code.
> 
> Maybe what you really want is an -mdata-model=kernel switch (or some
> such spelling) that tells gcc to do the right thing in the first
> place?

GCC should get a switch to do this.  But GCC doesn't (does 3.4 yet?)
emit these itself anyway.  Binutils expands them from the dla macro.


-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer