[Bug c++/86469] Dwarf Error: Offset (1678049557) greater than or equal to .debug_str size (5846).

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86469

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |doko at gcc dot gnu.org

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jonny Grant from comment #7)
> (In reply to rguenther@suse.de from comment #6)
> > On Thu, 12 Jul 2018, jg at jguk dot org wrote:
> > 
> > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86469
> > > 
> > > --- Comment #5 from Jonny Grant <jg at jguk dot org> ---
> > > Richard,
> > > Ok I will have a look at that soon...
> > > 
> > > Could I ask, do you know if GCC already has dwarf sanity checks when outputting
> > >  .debug_str size to check offsets are not larger than the size?
> > 
> > It does have a lot of sanity checks but I don't remember any specific
> > one for offsets into sections.
> 
> Would be good to add some sanity checks.. offsets into a buffer are always
> risky...

It's not so easy given the assembler is involved here, too.

> > Note you are using a pre-release of GCC 8.1 so maybe make sure to update
> > that.
> > 
> > What version of binutils are you using?
> 
> $ ld --version
> GNU ld (GNU Binutils for Ubuntu) 2.30

good

> yes, I'm using 8.0.1 from Ubuntu.. wish distros had latest releases of
> things like GCC...

I'm pretty sure Ubuntu has packages for GCC 8.1[.1]