Re: [PATCH] kallsyms: fix nonconverging kallsyms table with lld

[Arnd Bergmann]

On Thu, Jun 10, 2021 at 2:05 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> On Wed, Jun 09, 2021 at 10:30:23PM +0200, Arnd Bergmann wrote:
> > > I thought I'd see the added symbols, but it looks like the only difference
> > > between the two files is the addresses.
> > >
> > > What am I missing ?
> >
> > I probably misremembered the part about 'objdump --syms' and there was
> > something more to it.
> >
> > Maybe this was the last version before converging? It looks like the '<' version
> > has one extra symbol ompared to the '>' version. The diff has no context, but I
>
> It is the difference between step 1 and 2. Why would diff on objdump not
> show the additional symbol ? Is it possible that the symbol is not added
> to the object file ?

Note sure. The symbol must be in the object file, but perhaps the
'objdump --syms' output skips a different set of symbols compared
to the list that is used as input for kallsyms, which comes from '${NM}'.

Comparing the nm output might be another thing to try.

      Arnd