Messages in this thread | | | Subject | Re: [PATCH] ppc32: removed usage of <asm/segment.h> | From | Miklos Szeredi <> | Date | Wed, 17 Aug 2005 11:15:39 +0200 |
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> > There are perfectly valid uses of kernel headers from userspace. For > > example if a program uses the netlink interface, it should include > > <linux/netlink.h>. It's the interface definition after all. > > > > Glibc headers also include <linux/*> and <asm/*> in quite few places. > > But these files in /usr/include/ aren't provided by the kernel anymore.
They are provided by _one_ kernel, not necessarily the running kernel.
That doesn't make them any less a kernel header.
So if some userspace program depends on header <linux/x.h> to get the interface definition for feature x, and you remove <linux/x.h> from the current kernel, it _will_ break the userspace program some time later, when glibc picks up the new kernel.
Having said that that, <asm/segment.h> may or may not be validly exported to userspace.
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