[cfe-dev] Clang builds a working Linux Kernel (Boots to RL5 with SMP, networking and X, self hosts)

[Douglas Gregor]

On Oct 24, 2010, at 11:28 PM, Bryce Lelbach wrote:

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> Clang can now compile a functional Linux Kernel (version 2.6.36, SMP).

Very cool!

> I'm going to try to clean up some of my modifications to Clang (mostly hacks in
> CodeGen stuff, local labels (not 100% done yet), explicit register variables, 
> a more complete implementation of GNU inline assembly constraints). Some of my
> changes implement the sort of cryptic GNUtensions that I sense most Clang devs
> would find distasteful (I haven't added support for anything explicitly stated
> as unsupported on the clang website).


We do have the -fheinous-gnu-extensions option, if we are forced to implement something in Clang that is exceedingly tasteless. 

I don't know much about the Linux kernel community, but I've found that many other projects have been very receptive to fixes that get their code building with Clang. 

	- Doug