Messages in this thread | | | Date | Wed, 25 Feb 2009 02:05:11 -0500 | From | Kyle McMartin <> | Subject | Re: [rfc] headers_check cleanups break the whole world |
| |
On Wed, Feb 25, 2009 at 07:56:32AM +0100, Ingo Molnar wrote: > Note that if user-space is "playing utterly stupid games", it > can cause trouble no matter what scheme we pick - so we have to > filter out the reasonable problems that we should and can fix in > the kernel. >
Yeah, sorry, I should have been clearer, libcap does stupid #define _LINUX_TYPES_H_ typedef unsigned int __u32; #include <linux/header.h>
Which is just horribly broken when it's included early in a file and then we try to #include <asm/sigcontext.h> (and doesn't get the rest of those types since it now includes <linux/types.h> instead of <asm/types.h>) (coreutils was doing this.)
The real case is something like using the dvb headers, which legitimately is trying to include both <sys/*.h> and then <linux/dvb/*.h> and expecting it to work.
The footnote in the prior mail was really just an example of why not having just the plain __u32 et al types in their own header.
regards, Kyle
| |