j1clark@ucsd.edu writes:

Am Donnerstag den, 28. Mdrz 2002, um 09:51, schrieb Sean Morrell:

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I would like to use some of the functions provided by the standard c or

...

c++ library from a KEXT. Is this possible? For instance, I would like

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to

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use sin to debug some problems in my audio driver.

That's rather sinful... but anyway, perhaps because of my 'age', I would

immediately assume the libc functions are not reentrant, hence would

cause problems in the kernel. Even if there were 'thread' safe versions,

I would probably extract those functions out of the libc sources, and

compile them with 'my_driver_sin', etc. renaming, given that many libc

functions often drag in other functions which may eventually drag

in far more, and both useless and not remotely 'kernel' functions.

(Heck, I've not looked, but does the kernel printf even support

floats...)

If IOLog uses printf, then no it doesn't support floats, or %f anyway. Ah ... reentrancy. Thanks for the reminder. Though I don't think it would be an issue here. I only need the user space lib for testing. And only a single thread would be calling sin, any routines called by sin, or the entire user space library. Anyway, I just created a makeshift sin function using a small sine table. It will do for testing. Thanks _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.