> On Sunday 23 September 2001  1:26 pm, Ben Harris wrote:
> > On Sun, 23 Sep 2001, Chris Gilbert wrote:
> > > > Still to do:
> > > > * (gcc) Ensure 8-byte stack alignment on function entry
> > >
> > > I presume that we also need to ensure that asm code that calls c funcs
> > > does this as well, I'm just looking for something I can do to help get
> > > ARM ELF ready for prime time.
> >
> > Yes.  If you can find any assembly functions that do this, they should be
> > fixed.
> 
> Lots of them throughout the place need to be checked.  I'm happy to do this, 
> yes I'm volunteering to check the .S files.  I'm not going to check toolchain 
> dirs as I believe they're more the realm of those fiddling with toolchain 
> stuff (and you need to have signed a gnu agreement etc etc)
> 
> I'll start working through the list of obvious files to check (based on 
> grepping for C_LABEL)

A cool thing to do would be to put in some sort of diagnostic that we 
could enable once the toolchain is made to DTRT.  Some sort of test like

#ifdef CHECK_STACK_ALIGNMENT
	tst	sp, #7
	ldrne	r0, Lstack_align_panic
	blne	C_LABEL(panic)
#endif

This could be put in at almost any place where we can assert that the 
stack must be aligned. (Which is only at function boundaries).

R.