Re: Why does mips define elf_backend_sign_extend_vma to true?

[Daniel Jacobowitz <drow@mvista.com>]

On Wed, Aug 08, 2001 at 09:02:49AM -0700, H . J . Lu wrote:
> 
> I am willing to buy it. The immediate problem is in
> 
> struct obj_section *
> find_pc_sect_section (CORE_ADDR pc, struct sec *section)
> {
>   struct obj_section *s;
>   struct objfile *objfile;
> 
>   ALL_OBJSECTIONS (objfile, s)
>     if ((section == 0 || section == s->the_bfd_section) &&
>         s->addr <= pc && pc < s->endaddr)
>       return (s);
> 
>   return (NULL);
> }
> 
> s->addr and s->endaddr came from BFD with sign extension. But `pc' is
> not, which has the bit 31 set. All of them have the type of CORE_ADDR.
> Any suggestions? I am not sure if it is the only problem in gdb.

PC should be already be sign extended at this point... in my tests, it
is.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer