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Date: Sun, 21 Apr 2013 12:46:24 -0700
From: Kees Cook <>
To: Ingo Molnar <>
Cc: "H. Peter Anvin" <>, LKML <>, 
	"" <>, 
	"" <>, Thomas Gleixner <>, 
	Ingo Molnar <>, David Woodhouse <>, 
	Jiri Kosina <>, Olaf Hering <>, Yinghai Lu <>, 
	Matt Fleming <>, Gokul Caushik <>, 
	Josh Triplett <>, Joe Millenbach <>, 
	Alexander Duyck <>, Jacob Shin <>, 
	Pekka Enberg <>, Eric Northup <>, 
	Dan Rosenberg <>, Julien Tinnes <>, 
	Will Drewry <>
Subject: Re: [PATCH] x86: kaslr: move ELF relocation handling to C

On Sun, Apr 21, 2013 at 2:13 AM, Ingo Molnar <> wrote:
> * Kees Cook <> wrote:
>> Moves the relocation handling into C, after decompression. Only
>> kernels that need relocation support will use the code. The new
>> CONFIG_RANDOMIZE_BASE does not yet do anything except turn on this logic
>> for 64-bit kernels.
> So why not keep the inactive CONFIG_RANDOMIZE_BASE hunks in a separate
> patch, and just have this one clean, orthogonal patch that moves
> relocation handling into C?

I had wanted there to be a way to test building with 64-bit
relocations. With this patch and CONFIG_RANDOMIZE_BASE=y, I could do
that. Would you rather I remove those pieces?


Kees Cook
Chrome OS Security

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