Re: [PATCH v2 10/18] arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS

Will Deacon
2017-11-16T11:50:04Z

On Wed, Nov 15, 2017 at 01:34:20PM -0800, Sami Tolvanen wrote:
> CONFIG_CLANG_LTO depends on GNU gold and due to a known bug, the
> linker crashes when ARM64_MODULE_PLTS is enabled:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=14592
>
> To work around the problem, this change removes NOLOAD from .plt
> and .init.plt, which allows us to link modules with ld.gold.

Why don't we just not do LTO if the toolchain is busted? This feels like
it will end up being a game of whack-a-mole as code could be introduced
that tickles known bugs on older toolchains.

Will