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Date: Wed, 24 Jun 2020 14:31:29 -0700
From: Sami Tolvanen <>
To: Nick Desaulniers <>
Cc: Masahiro Yamada <>, Will Deacon <>,
	Greg Kroah-Hartman <>,
	"Paul E. McKenney" <>,
	Kees Cook <>,
	clang-built-linux <>,
	Kernel Hardening <>,
	linux-arch <>,
	Linux ARM <>,
	Linux Kbuild mailing list <>,
	LKML <>,,
	"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <>
Subject: Re: [PATCH 07/22] kbuild: lto: merge module sections

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 <> 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


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