On Wed, Jul 18, 2007 at 09:13:08PM -0400, Daniel Gryniewicz wrote:
> Actually, the Gentoo headers are not particularly close to the kernel
> headers. They are heavily "sanitized", meaning that all kinds of things
> that userspace is "not supposed to use" are removed. This makes it very
> hard for things like UML, that are heavily tied to the kernel, to build.
UML isn't heavily tied to the kernel in the way that you mean, I think.
However, it does explore some obscure parts of the API. For example,
the elimination of user.h makes it impossible to use
PTRACE_SETFP[X]REGS, as there is no way to tell what size buffer
should be passed in.
I'm all for minimizing the headers exported to userspace (and have
made a small contribution in that direction - ptrace-abi.h). I'm
happy to make UML stop using things it shouldn't. At the same time,
it should be possible to use the full userspace API.
Jeff
--
Work email - jdike at linux dot intel dot com
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