linux-kernel - Re: [tip:x86/urgent] x86/boot: Prevent KASLR and memmap collision

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Date:   Tue, 20 Dec 2016 09:31:18 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     dave.jiang@...el.com, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, hpa@...or.com
Cc:     linux-tip-commits@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: [tip:x86/urgent] x86/boot: Prevent KASLR and memmap collision


* tip-bot for Dave Jiang <tipbot@...or.com> wrote:

> Commit-ID:  d1a5058c063d9e0aaaf4d360d0f8074ee55ed096
> Gitweb:     http://git.kernel.org/tip/d1a5058c063d9e0aaaf4d360d0f8074ee55ed096
> Author:     Dave Jiang <dave.jiang@...el.com>
> AuthorDate: Tue, 29 Nov 2016 12:26:40 -0700
> Committer:  Thomas Gleixner <tglx@...utronix.de>
> CommitDate: Mon, 19 Dec 2016 12:27:52 +0100
> 
> x86/boot: Prevent KASLR and memmap collision

This commit breaks the 32-bit build (allyesconfig32 and allmodconfig32):

 ld: -r and -shared may not be used together
 scripts/Makefile.build:293: recipe for target 'arch/x86/boot/compressed/kaslr.o' failed
 make[2]: *** [arch/x86/boot/compressed/kaslr.o] Error 1
 make[2]: *** Waiting for unfinished jobs....

Thanks,

	Ingo