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Re: [PATCH 1/3] Avoid duplication of _CLOEXEC and _NONBLOCK values
On Fri, 13 Aug 2010, Ulrich Drepper wrote:
> There just is no reason whatsoever to do any of this.
The fact that the SPARC versions of sys/inotify.h, sys/epoll.h and
sys/eventfd.h are out of sync with the generic Linux versions shows quite
clearly that something should be changed, as updates to the SPARC versions
of these files - in libc, not ports - are being missed when the generic
versions are updated, so the present system for maintaining these files is
not in fact working.
I suggest that the reason it is not working is that the presence of
multiple copies of these sys/* files violates the expectation that only
bits/* files require versions for multiple target architectures to be
updated - the prototypes and architecture-independent definitions should
be in the present sys/* headers, but the _CLOEXEC and _NONBLOCK values
should be in bits/* headers, and only the bits/* headers would be
duplicated for multiple targets, so making it much more obvious which
changes require target headers to be updated.
--
Joseph S. Myers
joseph@codesourcery.com