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From: lehmann@ans-netz.de (Oliver Lehmann)
Subject: [TUHS] Introduction
Date: Tue, 1 Jul 2008 20:35:41 +0200	[thread overview]
Message-ID: <20080701203541.df06d2b1.lehmann@ans-netz.de> (raw)
In-Reply-To: <20080701162102.4812f3d6@veda.cnb.uam.es>

Jose R. Valverde wrote:

> 	u.u_dirp.l = (caddr_t) ((long) (((saddr_t) (uap->linkname).l) & 0x7F00FFFF);

I've added a missing ) behind .l:

 	u.u_dirp.l = (caddr_t) ((long) (((saddr_t) (uap->linkname).l)) &
0x7F00FFFF);

And I've got:

"sys2.c":305: warning: struct/union or struct/union pointer required
"sys2.c":305: operands of CAST have incompatible types

> 	saddr_t aux;
> 
> 	aux.l = (caddr_t) uap->linkname;
> 	u.u_dirp.l = (caddr_t) ((long) aux.l & 0x7F00FFFF);

ldl	rr2,rr8(#4)
ldl	|_stkseg+~L1|(fp),rr2
and	r2,#32512
ldl	_u+78,rr2

> they actually had the original code
> 
> 	register struct a {
> 		char	*target;
> 		saddr_t	*linkname;
> 	} *uap;
> 	...
> 	u.u_dirp.l = (caddr_t)(((long)uap->linkname.l & 0x7F00FFFF);

Hm - my man page states, that link() needs a char * as 2nd parameter, but
I've tested it:

"sys2.c":305: operands of "&" have incompatible types
"sys2.c":305: illegal combination of pointer and integer
"sys2.c":305: syntax error

I also tried 

u.u_dirp.l = (caddr_t)(((long)((uap->linkname).l) & 0x7F00FFFF);

-- 
 Oliver Lehmann
  http://www.pofo.de/
  http://wishlist.ans-netz.de/



  reply	other threads:[~2008-07-01 18:35 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-04 11:57 Jose R. Valverde
2008-06-04 15:11 ` Oliver Lehmann
2008-06-04 15:16   ` Oliver Lehmann
2008-06-05 15:07 ` Jose R. Valverde
2008-06-05 17:59   ` Oliver Lehmann
2008-06-05 15:17 ` Jose R. Valverde
2008-06-05 17:45   ` Oliver Lehmann
2008-06-23 14:18   ` Jose R. Valverde
2008-06-23 16:11     ` Oliver Lehmann
2008-06-25  9:40       ` Jose R. Valverde
2008-06-25 10:25       ` Jose R. Valverde
2008-06-26 14:52         ` Oliver Lehmann
2008-06-27 12:24           ` Jose R. Valverde
2008-06-29  8:25             ` Oliver Lehmann
2008-06-30  9:30               ` Jose R. Valverde
2008-06-30 17:34                 ` Oliver Lehmann
2008-07-01 14:21                   ` Jose R. Valverde
2008-07-01 18:35                     ` Oliver Lehmann [this message]
2008-07-03 10:12                       ` Jose R. Valverde
2008-07-06 16:14                         ` Oliver Lehmann
2008-07-07  9:25                           ` [TUHS] SysIII/PDP-11 on SIMH (was Re: Introduction) Jose R. Valverde
2008-07-07  9:32                           ` [TUHS] Introduction Jose R. Valverde
2008-07-07 14:45                             ` Oliver Lehmann
2008-06-06  9:58 ` Jose R. Valverde
  -- strict thread matches above, loose matches on Subject: below --
2008-06-03  4:18 Oliver Lehmann

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