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Re: Can objdump show friendly symbolic function name?
On Wed, 21 Jul 2010, Richard Sandiford wrote:
> >> It would certainly be possible to do the same thing in objdump,
> >> and FWIW, I did wonder about that when adding the readelf -A GOT dump.
> >> The problem is that, in a multi-GOT world, the annotations are only
> >> ever going to be a best guess. If the disassembler sees:
> >>
> >> lw $2,-32000(gp)
> >>
> >> it doesn't in general know whether gp points to the primary
> >> (ABI-defined) GOT, or to some secondary GOT. If it guesses
> >> right, the annotation would be useful, but if it guesses wrong,
> >> the annotation would be very misleading. This is different from
> >> the current <foo> markers, which are always accurate (or at least,
> >> _should_ always be accurate).
> >
> > Can the GOT pointer switch between GOTs within a single function?
>
> No.
I suppose it should be moderately easy to decode the prologue of each
function then to see which GOT $gp refers to.
Maciej