From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
Subject: Re: The time(2) man page conflicts with glibc
Date: Tue, 15 Dec 2015 13:38:26 -0500
Message-ID: <20151215183826.GY11489@vapier.lan>
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To: Zack Weinberg <zackw-VmQCmMdMyN0AvxtiuMwx3w@public.gmane.org>
Cc: "H.J. Lu" <hjl.tools-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, "Michael Kerrisk (man-pages)" <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, libc-alpha <libc-alpha-9JcytcrH/bA+uJoB2kUjGw@public.gmane.org>, linux-man <linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
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On 15 Dec 2015 10:19, Zack Weinberg wrote:
> On Tue, Dec 15, 2015 at 9:55 AM, Mike Frysinger wrote:
> > On 15 Dec 2015 09:14, Zack Weinberg wrote:
> >> Given the extreme obsolescence of the argument to `time`, I would
> >> recommend that the *kernel* be changed to fire an actual SIGSEGV
> >> instead of returning -EFAULT from the syscall version of `time`, and
> >> then that can be the documented behavior, with the historic behavior
> >> relegated to the BUGS section of the manpage.
> >
> > meh.  it would be out of character for the kernel to do this.
>=20
> Why?

because it returns EFAULT for other syscalls when you pass bad pointers.
projects like LTP utilize that to verify edge case functionality.
-mike

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