[LLVMdev] generating ELF files on non-ELF platforms with MC

Bendersky, Eli
2012-01-04T12:59:08Z

The existence of tools like Wine, LBW and several MachO loaders on Linux is a
good indication that at least in most cases, it's possible to run code
packaged in some container format on a system favoring another container. In the
worst case, the dynamic loader may explicitly choke on some special features,
but empirically it seems that most code can run without problems (we
successfully executed many non-trivial workloads packaged inside ELF on
Windows).

Eli


-----Original Message-----
From: Anton Korobeynikov [mailto:anton at korobeynikov.info]
Sent: Wednesday, January 04, 2012 14:50
To: Bendersky, Eli
Cc: llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] generating ELF files on non-ELF platforms with MC

> Yes, what I mean is that I want to generate runnable Windows code, on
Windows, but package in ELF as the object file. Note that there's absolutely
no problem with this approach - in fact we have a functional prototype already.
> The reason for this is that I currently want to employ MC-JIT on both Linux
and Windows, without implementing two separate runtime dynamic loaders. I want
to implement just RuntimeDyldELF, and use it on both Windows and Linux.
Well... What will you do if you will need to support some windows-specific
binary stuff which does not exist in ELF world? I cannot think about something
in this area off-hand, but there might be something here.
And surely there are MachO features which do not exist in ELF world.

--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University
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