Re: [RFC][PATCH 05/16] objtool: Optimize find_symbol_by_index()

Josh Poimboeuf
2020-03-15T16:18:40Z

On Sun, Mar 15, 2020 at 11:09:19AM -0500, Josh Poimboeuf wrote:
> On Thu, Mar 12, 2020 at 02:41:12PM +0100, Peter Zijlstra wrote:
> > The symbol index is object wide, not per section, so it makes no sense
> > to have the symbol_hash be part of the section object. By moving it to
> > the elf object we avoid the linear sections iteration.
>
> I remember there was a specific reason for this oddity, but it eludes me
> now.
>
> This does make sense, assuming it doesn't break anything.

On second thought I guess it was the symbol_list which had this
intentional per-section structure (for a still unremembered reason).

Then the symbol_hash came later, and it just parroted the symbol_list
structure. So yeah, this change should be fine.

--
Josh