Function Walk

pcsx2/DebugTools/MipsStackWalk.cpp:189–233

	}

	std::vector<StackFrame> Walk(DebugInterface* cpu, u32 pc, u32 ra, u32 sp, u32 threadEntry)
	{
		std::vector<StackFrame> frames;
		StackFrame current;
		current.pc = pc;
		current.sp = sp;
		current.entry = INVALIDTARGET;
		current.stackSize = -1;

		u32 prevEntry = INVALIDTARGET;
		while (pc != threadEntry)
		{
			u32 possibleEntry = GuessEntry(cpu, current.pc);
			if (DetermineFrameInfo(cpu, current, possibleEntry, threadEntry, ra))
			{
				frames.push_back(current);
				if (current.entry == threadEntry || GuessEntry(cpu, current.entry) == threadEntry)
				{
					break;
				}
				if (current.entry == prevEntry || frames.size() >= MAX_DEPTH)
				{
					// Recursion, means we're screwed.  Let's just give up.
					break;
				}
				prevEntry = current.entry;

				current.pc = ra;
				current.sp += current.stackSize;
				ra = INVALIDTARGET;
				current.entry = INVALIDTARGET;
				current.stackSize = -1;
			}
			else
			{
				// Well, we got as far as we could.
				current.entry = possibleEntry;
				current.stackSize = 0;
				frames.push_back(current);
				break;
			}
		}

		return frames;
	}
}; // namespace MipsStackWalk