Re: message explanation

[Tim Combs]

It could be a couple of things that I can think of right off.
Depending on the compiler and debugger there is a 
construct called a location expression in DWARF2 debugging entries. 
That says that a variable is valid from PC X to PC Y.  When its outside
of that PC range the variable is no longer valid.  
-or-
If you have set a watchpoint with an expression (at least this is true
in GDB, I think) and the variable that that expression depends on goes
out of scope (you leave the function or leave the compilation unit  (.o)).
Then GDB disables the watchpoint.

My 2 cents.
Tim
address@hidden 


On Thu, Feb 07, 2002 at 09:10:59AM -0500, Hirsch, Elliot wrote:
> Hi,
> I received the following message during a ddd session:
> 
> Watchpoint 3 deleted because the program has left the block in which its
> expression is valid.
> 0xfeas1ed9c in Vos_Mutex_Acquire () from
> /tools/opnet.../sun_sparc_solaris/lib/libopvos.so
> 
> What does this mean? Did me program enter an invalid area? Am I leaking
> memory? How do I avoid this?
> Thanks in advance for your help,
> Elliot
> 
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