linux-kernel - Re: [RFC5 PATCH v6 00/21] ILP32 for ARM64

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Date:	Fri, 19 Feb 2016 09:23:35 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Yury Norov <ynorov@...iumnetworks.com>,
	"Zhangjian (Bamvor)" <bamvor.zhangjian@...wei.com>,
	pinskia@...il.com, Prasun.Kapoor@...iumnetworks.com,
	catalin.marinas@....com, heiko.carstens@...ibm.com,
	linux-kernel@...r.kernel.org, agraf@...e.de,
	klimov.linux@...il.com, broonie@...nel.org,
	jan.dakinevich@...il.com, joseph@...esourcery.com, schwab@...e.de,
	schwidefsky@...ibm.com, Nathan_Lynch@...tor.com,
	christoph.muellner@...obroma-systems.com
Subject: Re: [RFC5 PATCH v6 00/21] ILP32 for ARM64

On Friday 19 February 2016 01:35:06 Yury Norov wrote:
> 
> Hi Bamvor, everybody,
> 
> I have new glibc that follows new ABI:
> https://github.com/norov/glibc/tree/new-api

Ah, very good!

> It's very draft and dirty, but you can try it with RFC5.
> My fail list for ltplite looks like this:
> pipeio_4                       FAIL       11   
> abort01                        FAIL       2    
> clone02                        FAIL       4    
> kill10                         FAIL       2    
> kill11                         FAIL       2    
> lstat01A                       FAIL       1    
> lstat02                        FAIL       1    
> mmap16                         FAIL       6    
> nanosleep03                    FAIL       1    
> nftw01                         FAIL       1    
> nftw6401                       FAIL       1    
> open12                         FAIL       2    
> pathconf01                     FAIL       1    
> pipe07                         FAIL       2    
> profil01                       FAIL       11   
> readdir01                      FAIL       1    
> readlink01A                    FAIL       1    
> rename11                       FAIL       2    
> rmdir02                        FAIL       2    
> sigaltstack01                  FAIL       1    
> sigaltstack02                  FAIL       1    
> stat03                         FAIL       1    
> stat04                         FAIL       1    
> stat06                         FAIL       1    
> umount2_01                     FAIL       2    
> umount2_02                     FAIL       2    
> umount2_03                     FAIL       2    
> utime06                        FAIL       2    
> writev01                       FAIL       1    
> mtest06                        FAIL       11   
> rwtest01                       FAIL       2    
> rwtest02                       FAIL       2    
> rwtest03                       FAIL       2    
> rwtest04                       FAIL       2    
> rwtest05                       FAIL       2

I have no idea whether this is good news or bad news ;-)

In https://github.com/norov/glibc/commit/351b8728fdb365bd4852ac113601ddf38153fdfc
I see that you are passing __IPC_64, I thought we had already resolved
that in the kernel. We might need to go back to this.

In https://github.com/norov/glibc/commit/5d4290435e428267171ece871539b76e1d079d11
you are defining a struct __kernel_stat64 in the glibc. Is this the expected
way to do it? I would have thought you'd get the definition from the kernel
headers.
 
	Arnd