From: Brian Gerst <brgerst@gmail.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>,
"the arch/x86 maintainers" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH] x86: uapi: Fix __BITS_PER_LONG for x32
Date: Thu, 1 Oct 2015 09:02:37 -0400 [thread overview]
Message-ID: <CAMzpN2iRLgfEALJcOxVJ7c65oMS-Mu3hfq8gq+HrS+GnnNQ9dQ@mail.gmail.com> (raw)
In-Reply-To: <20151001082333.GA1486@gmail.com>
On Thu, Oct 1, 2015 at 4:23 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * Ben Hutchings <ben@decadent.org.uk> wrote:
>
>> diff --git a/arch/x86/include/uapi/asm/bitsperlong.h b/arch/x86/include/uapi/asm/bitsperlong.h
>> index b0ae1c4..217909b 100644
>> --- a/arch/x86/include/uapi/asm/bitsperlong.h
>> +++ b/arch/x86/include/uapi/asm/bitsperlong.h
>> @@ -1,7 +1,7 @@
>> #ifndef __ASM_X86_BITSPERLONG_H
>> #define __ASM_X86_BITSPERLONG_H
>>
>> -#ifdef __x86_64__
>> +#if defined(__x86_64__) && !defined(__ILP32__)
>> # define __BITS_PER_LONG 64
>
> Can we write this as:
>
> #ifdef __ILP64__
Do all versions of gcc/clang define that, even if x32 isn't supported?
--
Brian Gerst
next prev parent reply other threads:[~2015-10-01 13:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-01 0:40 [PATCH] x86: uapi: Fix __BITS_PER_LONG for x32 Ben Hutchings
2015-10-01 8:23 ` Ingo Molnar
2015-10-01 13:02 ` Brian Gerst [this message]
2015-10-01 20:54 ` Ben Hutchings
2015-10-02 1:52 ` Ben Hutchings
2015-10-02 7:45 ` [tip:x86/urgent] x86/headers/uapi: Fix __BITS_PER_LONG value for x32 builds tip-bot for Ben Hutchings
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