[RFC/RFA] testsuite/gdb.base/watch_thread_num.exp: Fix test for systems having hidden threads

[Luis Machado]

Hi Pierre,

On Wed, 2007-12-19 at 13:59 +0100, Pierre Muller wrote:
> This test currently fails on cygwin target
> and it does by timeout's which means that it takes a lot of time...
> The reason of the failure is that 
> thread #2 is a thread created internally by cygwin,
> for posix emulation, and thus never
> changes the value of the variable shared_var.

Thanks for pointing this out. I wasn't aware of that fact.
  
> 	* (gdb.base/watch_thread_num.exp): Add breakpoint at
> 	thread_function and record first explicitly generated
> 	thread number. 
> 	Use that thread number for thread specific watchpoint test.
> 	Add iteration number to repetitive tests.

Looks OK. Maybe just "Use thread number for testing" and "Add iteration
number" will do on those two phrases.

> +gdb_test "disable 2" "" "Disable breakpoint 2"

Maybe a comment on why this is being explicitly disabled because of
Cygwin?

The other portions of the patch look OK to me.

The patch has 29 passes on PPC as well.

Regards,

-- 
Luis Machado
Software Engineer 
IBM Linux Technology Center