Question about args.exp test

Daniel Jacobowitz drow@false.org
Thu Apr 22 14:30:00 GMT 2004


On Thu, Apr 22, 2004 at 10:20:42AM -0400, Andrew Cagney wrote:
> >On Thu, Apr 22, 2004 at 09:33:34AM +0200, Corinna Vinschen wrote:
> >
> >>>On Apr 21 14:44, Daniel Jacobowitz wrote:
> >>
> >>>>> On Wed, Apr 21, 2004 at 06:40:40PM +0200, Corinna Vinschen wrote:
> >>>
> >>>>>> > Why is args.exp expecting two apostrophes and who's supposed to 
> >>>>>add them?
> >>>>>> > The args testapplication apparently isn't.
> >>>
> >>>>> 
> >>>>> IIRC, the comments are wrong.  The tests can not be fixed for the ARM
> >>>>> simulator, though - I spent several days trying.  Trace the path that
> >>>>> argv takes through from the GDB prompt to the inferior main(), if you
> >>>>> want some gruesome entertainment:
> >>>>>   - it is word split by GDB before invoking the sim
> >>>>>   - it is reconstructed into a string by the sim/RDI interface
> >>>>>   - it is word split again in either newlib or libgloss, in 
> >>>>handwritten
> >>>>>     assembly
> >>>>> 
> >>>>> The interface simply does not permit properly quoted arguments.
> >>
> >>>
> >>>Uh, that explains it.
> >>>
> >>>Thanks for the description,
> >
> >
> >Should probably be xfail'd for arm-elf.  I never did because,
> >conceptually, someone could be testing arm-elf with a different target
> >than the simulator and a differently protocol than RDI and a different
> >library than newlib - but in practice I doubt anyone does, so if you
> >want to stick a comment and some xfails in...
> 
> It's a bug.  There's nothing stopping someone fixing the sim target.

Did you read my reply at all?  The sim complies with the RDI mechanism
of passing information and syscalls to inferior programs.  The
mechanism is incapable of handling quoted arguments.  I don't think it
can be fixed.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer



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