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Date: Sun, 7 Oct 2007 17:21:47 +0100
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] [RFC, PATCH] Support for loading 32 bit ELF files
	for 64 bit linux-user
Message-ID: <20071007162147.GB13192@networkno.de>
References: <f43fc5580710070545x7f065e3ayef303218b3997b33@mail.gmail.com>
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To: Blue Swirl <blauwirbel@gmail.com>
Cc: qemu-devel <qemu-devel@nongnu.org>

Blue Swirl wrote:
[snip]
> Index: qemu/linux-user/qemu.h
> ===================================================================
> --- qemu.orig/linux-user/qemu.h	2007-10-07 10:50:05.000000000 +0000
> +++ qemu/linux-user/qemu.h	2007-10-07 10:51:09.000000000 +0000
> @@ -33,6 +33,7 @@
>          target_ulong    data_offset;
>          char            **host_argv;
>  	int		personality;
> +        int             is_64bits;
>  };

I think the 64bit-ness should be part of the personality. In the end,
we need a notion of the ABI in use, not just a specific cpu feature flag.

(MIPS Linux has working support for 4 ABIs, and it could be up to a
dozen different variants counting the unimplemented bits.)


Thiemo