linux-kernel - Re: futex(2) man page update help request

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Date:	Thu, 15 May 2014 17:35:44 +0200
From:	chrubis@...e.cz
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Darren Hart <dvhart@...ux.intel.com>,
	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Jakub Jelinek <jakub@...hat.com>,
	"linux-man@...r.kernel.org" <linux-man@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Davidlohr Bueso <davidlohr.bueso@...com>,
	Arnd Bergmann <arnd@...db.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Linux API <linux-api@...r.kernel.org>,
	Carlos O'Donell <carlos@...hat.com>
Subject: Re: futex(2) man page update help request

Hi!
> > However, unless I'm sorely mistaken, the larger problem is that glibc
> > removed the futex() call entirely, so these man pages don't describe
> > something users even have access to anymore. I had to revert to calling
> > the syscalls directly in the futextest test suite because of this:
> > 
> > http://git.kernel.org/cgit/linux/kernel/git/dvhart/futextest.git/tree/inclu
> > de/futextest.h#n67
> > 
> 
> This really comes down to the fact that we should have a libinux which
> contains the basic system call wrapper machinery for Linux specific
> things and nothing else.
> 
> syscall(3) is toxic and breaks randomly on some platforms.

+1

And while cleaning the LTP[1] testcases, we are slowly extracting the
special cases into commont code.

[1] http://linux-test-project.github.io/

-- 
Cyril Hrubis
chrubis@...e.cz
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