This is the mail archive of the cygwin@cygwin.com mailing list for the Cygwin project.


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: /proc/uptime etc. - NtQuerySystemInformation() needs bigger structure


> >> --- 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



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/


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