linux-kernel - Re: [RFC PATCH v6 00/17] ILP32 for ARM64

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Date:	Mon, 9 Nov 2015 22:52:32 +0800
From:	pinskia@...il.com
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Andreas Schwab <schwab@...e.de>,
	linux-arm-kernel@...ts.infradead.org,
	Yury Norov <ynorov@...iumnetworks.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v6 00/17] ILP32 for ARM64



> On Nov 9, 2015, at 10:36 PM, Arnd Bergmann <arnd@...db.de> wrote:
> 
>> On Monday 09 November 2015 15:33:51 Andreas Schwab wrote:
>> Arnd Bergmann <arnd@...db.de> writes:
>> 
>>>> On Monday 09 November 2015 14:23:59 Andreas Schwab wrote:
>>>> Yury Norov <ynorov@...iumnetworks.com> writes:
>>>> 
>>>>> This is what I run:
>>>>> https://github.com/norov/glibc/tree/thunderx-ilp32-32time_toff_t
>>>> 
>>>> That doesn't work for me:
>>>> 
>>>> ../sysdeps/unix/sysv/linux/generic/sysdep.h:24:22: error: ‘__NR_llseek’ undeclar
>>>> ed (first use in this function)
>>>> ../sysdeps/unix/sysv/linux/aarch64/sysdep.h:41:32: error: ‘__NR_fcntl64’ undeclared (first use in this function)
>>> 
>>> Did you re-export the kernel headers that you use as the base?
>> 
>> I'm using the patched 4.3 kernel headers.
> 
> Ok.
> 
>> Why is <asm/bitsperlong.h> defining __BITS_PER_LONG to 64 unconditionally?
> 
> It should not, that is a bug. I don't know how Yury built his glibc,
> but it can't work if __BITS_PER_LONG is wrong.


Looks like I had changed the header file manually for building glibc and Yury and myself missed that when  he updated the patches. 


Thanks,
Andrew

> 
>    Arnd
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