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Re: [Qemu-devel] Syscall 269

From: Paul Brook
Subject: Re: [Qemu-devel] Syscall 269
Date: Thu, 18 Nov 2004 13:03:47 +0000
User-agent: KMail/1.7.1

On Thursday 18 November 2004 09:38, James Pellow wrote:
> Hi All,
> I am trying to chroot to a gentoo flavor of arm linux on my AMD
> tbird-1.4GHz. I have set up binfmt_misc and qemu to allow me to do the
> chroot, and all seems to be working well.  Now I wanted to emerge some
> stuff, and I get the following message:
> qemu: Unsupported syscall: 269.
> Looking at the arm linux kernel source, I see that 269 is utimes.  Looking
> at the source code for qemu it seems that all I have to do is to add a
> define for TARGET_NR_utimes in all linux-user/*/syscall_nr.h and then add a
> new case in linux-user/syscall.c.
> So, I gave it a shot.  The patch is at the bottom of this message.  This is
> the first time I have looked at the qemu sources, so I am likely missing
> something, but the patch does seem to allow emerge to work properly under
> gentoo.  If a correct implementation requires more work, I am happy to do
> that too, just let me know.  BTW, I am not subscribed to this list to
> please CC me.

You also need to do proper 32/64bit and big/little endian conversion of struct 
timeval. It happens to work in your case because arm-linux and i686-linux 
both use the same word size and endianness.


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