[ECOS] Question CYGNUM_KERNEL_THREADS_DATA_MAX?

Andrew Lunn andrew.lunn@ascom.ch
Tue Jan 28 09:00:00 GMT 2003


On Tue, Jan 28, 2003 at 04:22:10AM +0000, Jonathan Larmour wrote:
> Andrew Lunn wrote:
> >It seems to me the cdl legal_value is wrong. 
> >
> >There is a bitmap kept for which kernel thread data entries are in
> >use. So for example, if thread entry 10 is in use, bit 10 of
> >thread_data_map will be reset. Now thread_data_map is of type
> >cyg_count32. ie its 32 bits. So the upper legal value should be 31,
> >not 65535. 32 may work, but that depends on what value 1<<32 gives.
> 
> One too big for a 32-bit word certainly! I've corrected this in CVS.

Thats what im relying on. 1<<32 should be 0 on most processors. If so,
it all works out correct. But its not something i would trust unless
it was written down in some standard and gcc actually implements that
standard.

   Andrew

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