[RFA/doco] Document task-specific breakpoints

[Joel Brobecker]

Hello Eli,

> > +Breakpoint 5, test_task_debug.tB.1 (_task=0x11ffffc60)
>                                 ^^^^^
> What is this part?  Should we explain it in some footnote?  And what
> about _task=0x11ffffc60 part, should it perhaps be explained, too?

Hmm, good point. These are actually old compiler artifacts that we
got rid of since writing that documentation.  The original testcase
was using what we call a task "entry" I believe, which is the reason
for the "_task" parameter. We could just as well have used a function
so I cleaned up the example to make it simpler.

> > +(@value{GDBP}) info tasks
> > +  ID       TID P-ID Pri State                 Name
> > +   1 140022020   0   15 Child Activation Wait main_task
> > +*  2 140045060   1   15 Running               t2
> 
> "Running"? shouldn't it be stopped at breakpoint?

In practice, yes, it is stopped. But this information is printed
from the point of view of the runtime. To the runtime, task "t2"
is running.

Attached is a new version of the documentation patch:

        * gdb.texinfo (Ada Tasks): Add documentation about task-specific
        breakpoints.
        (Set Breaks): Add reference to thread-specific and task-specific
        breakpoints.

Thanks,
-- 
Joel
-------------- next part --------------
A non-text attachment was scrubbed...
Name: task-doc.diff
Type: text/x-diff
Size: 2853 bytes
Desc: not available
URL: <http://sourceware.org/pipermail/gdb-patches/attachments/20090326/7859b239/attachment.bin>