From: Arvind Sankar <nivedita@alum.mit.edu>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: linux-efi@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Arvind Sankar <nivedita@alum.mit.edu>
Subject: Re: [PATCH v2 3/3] x86/boot/compressed: get rid of GOT fixup code
Date: Sat, 23 May 2020 11:17:58 -0400 [thread overview]
Message-ID: <20200523151758.GB1189358@rani.riverdale.lan> (raw)
In-Reply-To: <20200523120021.34996-4-ardb@kernel.org>
On Sat, May 23, 2020 at 02:00:21PM +0200, Ard Biesheuvel wrote:
> In a previous patch, we have eliminated GOT entries from the decompressor
> binary and added an assertion that the .got section is empty. This means
> that the GOT fixup routines that exist in both the 32-bit and 64-bit
> startup routines have become dead code, and can be removed.
>
> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
> diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
> index 60a99dfb9d72..d91fdda51aa8 100644
> --- a/arch/x86/boot/compressed/vmlinux.lds.S
> +++ b/arch/x86/boot/compressed/vmlinux.lds.S
> @@ -43,9 +43,7 @@ SECTIONS
> _erodata = . ;
> }
> .got : {
> - _got = .;
> KEEP(*(.got))
> - _egot = .;
> }
> .got.plt : {
> KEEP(*(.got.plt))
> --
> 2.20.1
>
I think you can get rid of both the KEEP's here as well?
next prev parent reply other threads:[~2020-05-23 15:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-23 12:00 [PATCH v2 0/3] x86/boot: get rid of GOT entries and associated fixup code Ard Biesheuvel
2020-05-23 12:00 ` [PATCH v2 1/3] x86/boot/compressed: move .got.plt entries out of the .got section Ard Biesheuvel
2020-05-24 15:08 ` Ingo Molnar
2020-05-24 15:11 ` Ard Biesheuvel
2020-05-24 15:14 ` Ingo Molnar
2020-05-23 12:00 ` [PATCH v2 2/3] x86/boot/compressed: force hidden visibility for all symbol references Ard Biesheuvel
2020-05-24 15:12 ` Ingo Molnar
2020-05-24 15:15 ` Ard Biesheuvel
2020-05-27 14:36 ` Arvind Sankar
2020-05-27 18:29 ` Brian Gerst
2020-05-27 18:30 ` Ard Biesheuvel
2020-05-28 7:46 ` Ard Biesheuvel
2020-05-23 12:00 ` [PATCH v2 3/3] x86/boot/compressed: get rid of GOT fixup code Ard Biesheuvel
2020-05-23 15:17 ` Arvind Sankar [this message]
2020-05-24 8:42 ` Ard Biesheuvel
2020-05-23 15:16 ` [PATCH v2 0/3] x86/boot: get rid of GOT entries and associated " Arvind Sankar
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