Complex location

Daniel Jacobowitz drow@false.org
Thu Jan 18 16:32:00 GMT 2007


On Thu, Jan 18, 2007 at 05:19:26PM +0100, Fabian Cenedese wrote:
> Hi
> 
> Gdb (6.5) often just says:
> 
> (gdb) info scope Inos.cpp:556
> Scope for Inos.cpp:556:
> Symbol this is a variable with complex or multiple locations (DWARF2), length 4.
> Symbol var1 is a variable with complex or multiple locations (DWARF2), length 4.
> Symbol var2 is a variable with complex or multiple locations (DWARF2), length 4.
> 
> However how can this be complex?

Ask the compiler.  It probably moves from one register to another at
some point in the life of the function.

> "In general, we need a location expression pretty-printer - this is
> quite complicated, so no one's done it yet."
> 
> Seems like that is still the case, is that correct?

Yes.  I know this bugs Jim too :-)

-- 
Daniel Jacobowitz
CodeSourcery



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