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Re: [RFC6 PATCH v6 00/21] ILP32 for ARM64
- From: Andreas Schwab <schwab at suse dot de>
- To: Joseph Myers <joseph at codesourcery dot com>
- Cc: Arnd Bergmann <arnd at arndb dot de>, Szabolcs Nagy <szabolcs dot nagy at arm dot com>, Yury Norov <ynorov at caviumnetworks dot com>, <catalin dot marinas at arm dot com>, <linux-arm-kernel at lists dot infradead dot org>, <linux-kernel at vger dot kernel dot org>, <nd at arm dot com>, <linux-arch at vger dot kernel dot org>, <linux-s390 at vger dot kernel dot org>, <pinskia at gmail dot com>, <Prasun dot Kapoor at caviumnetworks dot com>, <broonie at kernel dot org>, <linux-doc at vger dot kernel dot org>, <heiko dot carstens at de dot ibm dot com>, <agraf at suse dot de>, <klimov dot linux at gmail dot com>, <bamvor dot zhangjian at huawei dot com>, <schwidefsky at de dot ibm dot com>, <Nathan_Lynch at mentor dot com>, <christoph dot muellner at theobroma-systems dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Tue, 17 May 2016 18:02:36 +0200
- Subject: Re: [RFC6 PATCH v6 00/21] ILP32 for ARM64
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- References: <1459894127-17698-1-git-send-email-ynorov at caviumnetworks dot com> <573B0A4D dot 4090704 at arm dot com> <4173531 dot IRSphtVpg9 at wuerfel> <alpine dot DEB dot 2 dot 20 dot 1605171542340 dot 24255 at digraph dot polyomino dot org dot uk>
Joseph Myers <joseph@codesourcery.com> writes:
> On Tue, 17 May 2016, Arnd Bergmann wrote:
>
>> I think it has become easier to override now and we just need to
>> update sysdeps/unix/sysv/linux/generic/bits/typesizes.h to set
>>
>> #define __INO64_T_TYPE __UQUAD_TYPE
>> #define __OFF64_T_TYPE __UQUAD_TYPE
>> #define __OFF_T_MATCHES_OFF64_T 1
>> #define __INO_T_MATCHES_INO64_T 1
>>
>> for new architectures (obviously not the ones that already use the
>> 32-bit types). I haven't tries this, so there may be other things
>> that are required.
>
> I think more than that would be needed to get struct stat to match and get
> things aliased for that (which is presumably desirable).
Looking at sysdeps/unix/sysv/linux/generic/bits/stat.h, there is at
least blkcnt_t that differs between stat and stat64. And you probably
want to alias statfs and statfs64 as well, ie. fs{blk,fil}cnt_t.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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