Messages in this thread | | | Date | Wed, 29 Mar 2006 22:26:41 +0000 | From | Pavel Machek <> | Subject | Re: [RFC][PATCH 1/2] Create initial kernel ABI header infrastructure |
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Hi!
> I plan to add a lot of other definitions to this file > later on. For example different architectures have > different notions of what a __kernel_ino_t is (unsigned > int versus unsigned long). I may rename this file as > types.h, but from looking through the code I figure I'll > have enough general purpose declarations about "This > architecture has blah" that a separate stddef.h file > will be worth it. > > >(and... why do you prefix these with _KABI? that's a > >mistake imo. Don't bother with that. Really. Either > >these need exporting to userspace, but then either use > >__ as prefix or don't use a prefix. But KABI.. No.) > > According to the various standards all symbols beginning > with __ are reserved for "The Implementation", including > the compiler, the standard library, the kernel, etc. In > order to avoid clashing with any/all of those, I picked > the __KABI_ and __kabi_ prefixes for uniqueness. In > theory I could just use __, but there are problems with > that too. For example, note how the current compiler.h > files redefine __always_inline to mean something kinda > different. The GCC manual says we should be able to > write this:
__KABI_ everywhere will just make your headers totally unreadable. Please don't do that.
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