This is the mail archive of the libc-hacker@sourceware.org mailing list for the glibc project.

Note that libc-hacker is a closed list. You may look at the archives of this list, but subscription and posting are not open.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH] PPC fenv fixes. 3rd update

From: Richard Henderson <rth at twiddle dot net>
To: Jakub Jelinek <jakub at redhat dot com>
Cc: Steven Munroe <munroesj at us dot ibm dot com>, Glibc hackers <libc-hacker at sources dot redhat dot com>, Ulrich Drepper <drepper at redhat dot com>, Peter Eberlein <eberlein at us dot ibm dot com>
Date: Mon, 16 Apr 2007 17:07:25 -0700
Subject: Re: [PATCH] PPC fenv fixes. 3rd update
References: <20070322145345.GZ1826@sunsite.mff.cuni.cz> <4602FCE5.7060203@us.ibm.com> <460941B8.2050501@us.ibm.com> <20070327160708.GA355@devserv.devel.redhat.com> <46096124.6050504@us.ibm.com> <460A8D78.6060303@us.ibm.com> <20070405022655.GA29766@twiddle.net> <46157538.5050407@us.ibm.com> <20070414173839.GL1826@sunsite.mff.cuni.cz>

On Sat, Apr 14, 2007 at 07:38:39PM +0200, Jakub Jelinek wrote:
> Hm, why can't you use the magic numbers?  fesetenv takes (fenv_t *envp)
> on all arches, yet all but ppc manage to handle magic numbers.

Assuming a userland has all bits available for user mapping,
there may be no easy space to reserve.  In which case I'd export
some dummy variables from libc, and compare vs their addresses.

r~

References:
- Re: [PATCH] PPC fenv fixes.
  - From: Richard Henderson
- [PATCH] PPC fenv fixes. 3rd update
  - From: Steven Munroe
- Re: [PATCH] PPC fenv fixes. 3rd update
  - From: Jakub Jelinek

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]