Re: [PATCH 07/22] kbuild: lto: merge module sections

Sami Tolvanen
2020-06-24T21:31:53Z

On Wed, Jun 24, 2020 at 02:01:59PM -0700, 'Nick Desaulniers' via Clang Built Linux wrote:
> On Wed, Jun 24, 2020 at 1:33 PM Sami Tolvanen <samitolvanen@google.com> wrote:
> >
> > LLD always splits sections with LTO, which increases module sizes. This
> > change adds a linker script that merges the split sections in the final
> > module and discards the .eh_frame section that LLD may generate.
>
> For discarding .eh_frame, Kees is currently fighting with a series
> that I would really like to see land that enables warnings on orphan
> section placement. I don't see any new flags to inhibit .eh_frame
> generation, or discard it in the linker script, so I'd expect it to be
> treated as an orphan section and kept. Was that missed, or should
> that be removed from the commit message?

It should be removed from the commit message, thanks for pointing it
out.

Sami