Re: [PATCH 26/27] [AARCH64] Change type of __align to long long

From	Andreas Schwab <schwab@suse.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH 26/27] [AARCH64] Change type of __align to long long
Date	2016-07-06 12:40 +0200
Message-ID	<rRSpj-81D-3@gated-at.bofh.it> (permalink)
References	<rMoBA-2OV-31@gated-at.bofh.it> <rMp4B-3gc-15@gated-at.bofh.it> <rMrzr-4Ln-1@gated-at.bofh.it>
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"Zhangjian (Bamvor)" <bamvor.zhangjian@huawei.com> writes:

> Hi, Yury
>
> On 2016/6/21 13:07, Yury Norov wrote:
>> From: Andrew Pinski <apinski@cavium.com>
>>
>> So that ILP32 is aligned to 64bits.
>>
>> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
>> ---
>>   sysdeps/aarch64/nptl/bits/semaphore.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/sysdeps/aarch64/nptl/bits/semaphore.h b/sysdeps/aarch64/nptl/bits/semaphore.h
>> index 3cc5b37..3fe6047 100644
>> --- a/sysdeps/aarch64/nptl/bits/semaphore.h
>> +++ b/sysdeps/aarch64/nptl/bits/semaphore.h
>> @@ -31,5 +31,5 @@
>>   typedef union
>>   {
>>     char __size[__SIZEOF_SEM_T];
>> -  long int __align;
>> +  long long int __align;
> Why we need align to 64bit?

Because aarch64 defines __HAVE_64B_ATOMICS.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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Re: [PATCH 26/27] [AARCH64] Change type of __align to long long Andreas Schwab <schwab@suse.de> - 2016-07-06 12:40 +0200

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