Relative expressions and ASSERT

[Daniel Jacobowitz]

On Mon, Dec 20, 2010 at 11:29:09PM +1030, Alan Modra wrote:
> On Fri, Dec 17, 2010 at 11:41:40AM -0800, H.J. Lu wrote:
> > The updated patch with a new testcase.
> 
> I think this is a better solution, works on current binutils testsuite,
> the testcases in PR12066, and on kernel builds I tried.  You can
> even describe linker behaviour without too much embarassment.
> 
> I added an option to allow people to experiment with a consistent
> linker expression resolver by setting
>   __ld_compatibility = 221 ;
> somewhere in their linker scripts.  This treats numbers and absolute
> symbols as numbers everywhere, the most flexible arrangement since
> you can force a number to be an absolute address by using ABSOLUTE(),
> but you can't do the reverse.

I'd use a new syntax for setting the compatibility version, because
if a program relies on the new behavior, then the linker script ought
to be rejected by an old linker.

I have a wee bit of fear in maintaining more than one version...

-- 
Daniel Jacobowitz
CodeSourcery