linux-kernel - Re: [PATCH v4 4/4] powerpc: Book3S 64-bit "heavyweight" KASAN support

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Message-ID: <87fthgmuab.fsf@mpe.ellerman.id.au>
Date:   Thu, 19 Dec 2019 22:25:32 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Daniel Axtens <dja@...ens.net>,
        Christophe Leroy <christophe.leroy@....fr>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linuxppc-dev@...ts.ozlabs.org, kasan-dev@...glegroups.com,
        aneesh.kumar@...ux.ibm.com, bsingharora@...il.com
Subject: Re: [PATCH v4 4/4] powerpc: Book3S 64-bit "heavyweight" KASAN support

Daniel Axtens <dja@...ens.net> writes:
> Christophe Leroy <christophe.leroy@....fr> writes:
>> On 12/19/2019 12:36 AM, Daniel Axtens wrote:
>>> KASAN support on Book3S is a bit tricky to get right:
...
>>> diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h
>>> index 296e51c2f066..f18268cbdc33 100644
>>> --- a/arch/powerpc/include/asm/kasan.h
>>> +++ b/arch/powerpc/include/asm/kasan.h
>>> @@ -2,6 +2,9 @@
>>>   #ifndef __ASM_KASAN_H
>>>   #define __ASM_KASAN_H
>>>   
>>> +#include <asm/page.h>
>>> +#include <asm/pgtable.h>
>>
>> What do you need asm/pgtable.h for ?
>>
>> Build failure due to circular inclusion of asm/pgtable.h:
>
> I see there's a lot of ppc32 stuff, I clearly need to bite the bullet
> and get a ppc32 toolchain so I can squash these without chewing up any
> more of your time. I'll sort that out and send a new spin.

I think you run Ubuntu, in which case it should just be:

$ apt install gcc-powerpc-linux-gnu

cheers