Re: [coreboot] [commit] r5286 - ...

[Segher Boessenkool]

> > > > -extern unsigned char AmlCode[];
> > > > +extern const acpi_header_t AmlCode;
> > >
> > > And we're positive, this always does the right thing with gcc?
> >
> > I am told that AmlCode is defined as array of (unsigned) char in
> > some other file.  Declaring it as some other type here is not
> > valid C, and *will* break with GCC, with some options (-combine
> > or LTO at least) -- it will not compile.
>
> The biggest worry for me is incorrect execution.  If it doesn't compile
> when
> it breaks, then that's a good thing.

It will probably _work_ with current GCC and no whole-program stuff,
but how do you *know* it does?  Better to just fix it.

Segher