Re: [PATCH RFC] gcc-plugins: Handle GCC version mismatch for OOT modules

Josh Poimboeuf
2021-01-25T22:22:13Z

On Mon, Jan 25, 2021 at 02:03:07PM -0800, Kees Cook wrote:
> On Mon, Jan 25, 2021 at 02:42:10PM -0600, Josh Poimboeuf wrote:
> > When a GCC version mismatch is detected, print a warning and disable the
> > plugin. The only exception is the RANDSTRUCT plugin which needs all
> > code to see the same struct layouts. In that case print an error.
>
> I prefer this patch as-is: only randstruct needs a hard failure. The
> others likely work (in fact, randstruct likely works too).

I'm curious about this last statement, why would randstruct likely work?

Even struct module has '__randomize_layout', wouldn't basic module init
go splat?

--
Josh