Re: New fhpd commands: ptype & plocation

[Teresa Thomas <tthomas@redhat.com>]

Phil Muldoon wrote:
> Apart from the output code, and parsing code in fhpd, is the "get the 
> location" code placed in a utility class somewhere? Can you give a 
> programming example of given variable foo, how to get a location or 
> locations in memory of where it resides?
Following is an example taken from /Variable.java/:

    // Get the DWARF operations that describe the variable's location 
from its DIE
    List ops = variableDie.getFormData(frame.getAdjustedAddress());
    // Create a LocationExpression from it
    LocationExpression locationExpression = new 
LocationExpression(frame, variableDie, ops);
    // Decode the expression to get the location and create a 
PieceLocation from it
    PieceLocation pieceLocation = new 
PieceLocation(locationExpression.decode(this.getType(frame).getSize()));

pieceLocation will now contain the (list of) location(s). You can print 
it by using its toPrint function, manipulate
its bytes, etc. [Refer /Location.java /and /PieceLocation.java/ (or ping 
me :-) ) for its other functions]