Re: Recent changes to sysctl.h breaks glibc

H. Peter Anvin (hpa@zytor.com)
20 May 2003 15:10:08 -0700

Followup to: <200305200111.h4K1BJPc026622@turing-police.cc.vt.edu>
By author: Valdis.Kletnieks@vt.edu
In newsgroup: linux.dev.kernel
>
> > For a lot of system calls it is actively dangerous to assume dev_t ==
> > __kernel_dev_t. As glibc does some cute things in there.
>
> I thought that sort of fun and games was *WHY* userspace can't use the
> kernel headers in the first place?
>

Indeed. Because they try to export dev_t, not __kernel_dev_t (unless
you know exactly what you're doing, which most people don't.)

dev_t should be defined by the library ABI, not by the kernel ABI.

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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