Add DWARF expression evaluation #7
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DWARF expressions use a mini stack machine for computing variable locations. Debuggers evaluate them step-by-step, pausing when they need external data (registers, memory, CFA), and the callback pattern makes this elegant and architecture-independent. Here we implement just enough to support building a debugger which evaluates expressions and provides data to the Requires* callbacks.
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DWARF expressions use a mini stack machine for computing variable locations. Debuggers evaluate them step-by-step, pausing when they need external data (registers, memory, CFA), and the callback pattern makes this elegant and architecture-independent. Here we implement just enough to support building a debugger which evaluates expressions and provides data to the Requires* callbacks.