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X-WM-Posted-At: avacado.atomice.net; Fri, 5 Jul 02 21:44:39 +0100
Message-ID: <016401c22464$c81034b0$0100a8c0@advent02>
From: "Chris January" <chris AT atomice DOT net>
To: <cygwin AT cygwin DOT com>
References: <E17QTq3-0004vt-0X AT anchor-post-33 DOT mail DOT demon DOT net> <004f01c22449$91da71a0$0100a8c0 AT advent02> <20020705200207 DOT GA11696 AT redhat DOT com>
Subject: Re: /proc/uptime etc. - NtQuerySystemInformation() needs bigger structure
Date: Fri, 5 Jul 2002 21:44:38 +0100
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> >> --- winsup/cygwin/ntdll.h.old 2002-05-30 21:21:04.000000000 +0100
> >> +++ winsup/cygwin/ntdll.h     2002-07-05 11:15:52.000000000 +0100
> >> @@ -58,6 +58,7 @@ typedef struct _SYSTEM_PROCESSOR_TIMES
> >>    LARGE_INTEGER DpcTime;
> >>    LARGE_INTEGER InterruptTime;
> >>    ULONG InterruptCount;
> >> +  ULONG Unused;
> >>  } SYSTEM_PROCESSOR_TIMES, *PSYSTEM_PROCESSOR_TIMES;
> >>
> >>  typedef LONG KPRIORITY;
> >
> >I will look at this patch tonight, but I would be grateful if you could
> >answer the following questions:
> >What version of binutils are you using?
> >If you compiled Cygwin using just the 1.3.12 sources with no
modifications,
> >does /proc/uptime have any content?
>
> I think this is a symptom of the fact that gcc uses different alignment
> than msvc.  If you add a __attribute__ ((aligned (8))) to the structure
> it should "fix" the problem.
>
> This is one thing that was fixed by the -fnative-struct gcc option which
> is, unfortunately, not available in gcc 3.1.
I remember getting /proc working with aligned (4). Either I remember
incorrectly or something strange is going on. Either way it would probably
do no harm to explicitly set the alignment of the structures in ntdll.h

Chris



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