Re: GNU gcc ld script problem

[Daniel Jacobowitz <drow at mvista dot com>]

Hey Richard, resident IRIX sucker..... *duck*

Do you have any comments on this?  I just ran into yet another problem
in GDB that would be fixed by keeping the lazy loading stubs out of
.text.

On Sun, Feb 29, 2004 at 04:57:40PM -0500, Daniel Jacobowitz wrote:
> On Wed, Feb 25, 2004 at 11:29:25AM -0800, Nathan Field wrote:
> > This has been dormant for a while, but will newer binutils put the .stub 
> > sections into their own section in the final binary? We don't really care 
> > whether it's called a .plt section, though as Daniel notes the .stub 
> > sections serve a similar purpose to the PLT so it seems reasonable to use 
> > that name.
> > 
> > The GNU linker does this for all other archs (at least that I know of), 
> > why should it not do it for MIPS?
> 
> The question is what effect it will have on IRIX's extremely picky
> tools.  I have no idea; Richard might know...
> 
> > 
> > 	nathan
> > 
> > On Thu, 5 Feb 2004, Daniel Jacobowitz wrote:
> > 
> > > On Thu, Feb 05, 2004 at 01:04:27PM -0500, Ian Lance Taylor wrote:
> > > > Nathan Field <ndf@ghs.com> writes:
> > > > 
> > > > > 	But the contents of the .stub section *are* the PLT for each
> > > > > object. I should have been clearer about that. Perhaps the real bug is
> > > > > that the compiler is associating .plt sections in objects to .stub
> > > > > sections? As far as I can tell the only thing which is put into the .stub 
> > > > > section is the PLT, but I've only looked at fairly simple test cases.
> > > > 
> > > > In what sense is your .stub section the PLT?  When using ELF the PLT
> > > > requires special dynamic relocations.  Those are normally created
> > > > automatically by the linker when it builds the PLT.  Do those exist
> > > > for your .stub section?
> > > 
> > > No, MIPS does not use _JUMP_SLOT relocations.  The .stub entries serve
> > > a similar purpose to the PLT, but they work directly out of the .got. 
> > > Like the .plt, they are linker-generated.
> > > 
> > > The net effect is basically the same.
> > > 
> > > 
> > 
> > -- 
> > Nathan Field (ndf@ghs.com)			          All gone.
> > 
> > But the trouble with analogies is that analogies are like goldfish:
> > sometimes they have nothing to do with the topic at hand.
> >         -- Crispin (from a posting to the Bugtraq mailing list)
> > 
> > 
> 
> -- 
> Daniel Jacobowitz
> MontaVista Software                         Debian GNU/Linux Developer
> 

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer