When the compiler passes an aggregate (class, struct, union, array,
etc.) to a function it will always pass a pointer (the difference
between passing by value, ref, or pointer is just language semantics).
Given that, you should be able to typedef the struct in dtrace and then
reference ((TextItem*) argN)->string (remember arg0 is the this pointer
if it's a member function).
I don't know whether dtrace can handle member function declarations (it
certainly can't call them!), so you may need to declare a struct type
which shadows all the data members of TextItem.
Ryan
wynne wang wrote:
Hi
If we'd trace an input parameter, which is infact an C++ class , such as
TextItem, anyway we could trace the contents inside the TextItem ?
Example, it has a member named string, we'd get the contents of
TextItem.string.
Any advice?
Wynne
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