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Attn: JonY -- Re: Bug in ddk headers when used from cygwin

Hey, JonY ---

On 4/9/2013 9:58 AM, Corinna Vinschen wrote:
On Apr  9 09:19, Charles Wilson wrote:
On 4/9/2013 5:16 AM, Corinna Vinschen wrote:
On Apr  8 13:54, Charles Wilson wrote:
But doesn't this mean that the cygwin's w32api package should
exclude all of the ddk headers; it's not simply a case that you
"shouldn't" use ddk/*.h, but that you actually cannot, because
compilation will fail.

The absence of intrin.h was a bug, but otherwise you could still use
the ddk headers for what they are supposed to be:  Writing device
drives and other kernel stuff.  The difference is just that the ddk
headers from mingw-w64 cannot be used together with the user space
headers like windows.h, but that's not different from "upstream".

...but is it reasonable to create a *cygwin* device driver or kernel
mode item?  If you're using the cygwin compiler, then you're linking
against the cygwin dll -- which makes a bunch of usermode w32 calls
under the hood.  If it's bad juju to mix ddk/ kernel mode stuff with
w32api/ user mode stuff, then any "cygwin" device driver is, by
definition, bad juju.

If I'm correct, then the *cygwin* w32api-headers package (and
cygwin64-w32api-headers) should exclude ddk/ from their deliverable
footprint, even if intrin.h is added back to the toplevel w32api/
include directory for other reasons.

Well, actually I don't really care one way or the other.  You may want
to discuss this with JonY.

Any thoughts on this -- the idea that the cygwin (and cygwin64) package of


should be stripped of any ddk-related items, as they can't actually be mixed with the usable-from-cygwin user mode w32 items?

Arguably this might break some things -- such as the (old version of) csih/getVolInfo -- but they are actually already broken, with the (bug or compile failure) just waiting to be exposed.


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