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Re: 64bit bfd_vma vs 32bit address space in linker
On Tue, Apr 08, 2003 at 03:25:34AM -0300, Alexandre Oliva wrote:
> On Apr 8, 2003, Alan Modra <amodra at bigpond dot net dot au> wrote:
>
> > Without looking in detail at the code, I believe that bits_per_address
> > is exactly the right thing to use to implement the (currently missing
> > when BFD64) linker address wrap.
>
> I'm afraid it isn't. Consider 32-bit code (say o32) running on a
> 64-bit architecture (MIPS III). You do want to truncate addresses to
> 32 bits, since the ABI mandates 32-bit addresses, but bits_per_address
> will return 64.
So why isn't bits_per_address == 32 if the ABI says addresses are
32-bit?
--
Alan Modra
IBM OzLabs - Linux Technology Centre