菜单
Get local variable names, types, and register/stack assignments from RB2 DWARF debug info. Shows parameters, locals (GPR/FPR/stack), and references for functions in the shared Milo engine. Ground truth for variable names/types when starting decomp.
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基于 SOC 职业分类
| name | rb2-locals |
| description | Get local variable names, types, and register/stack assignments from RB2 DWARF debug info. Shows parameters, locals (GPR/FPR/stack), and references for functions in the shared Milo engine. Ground truth for variable names/types when starting decomp. |
| argument-hint | [function-name] |
| allowed-tools | Bash(python3 *), Read, Grep, Glob |
Query the RB2 DWARF dump for function-level local variable information.
$ARGUMENTS - Function name. Accepts:
Class::Method — exact match (e.g., ClipCollide::Collide)ClassName — all methods of that class (e.g., ClipCollide)MethodName — all classes with that method (e.g., Collide)Run the lookup:
python3 scripts/orchestrator/rb2_locals.py "$ARGUMENTS"
Present the results to the user. Key sections:
Interpret for DC3 decomp:
/rb3-pair (RB3 source code) and /rb2-class (struct layouts) for full contextDecompile and analyze a function from Ghidra. Shows decompiled C code, switch statements, and cast operations. Use when investigating function structure or debugging type issues. Automatically resolves symbol names to correct functions. Need to skip sandbox to access Ghidra over network.
Run decomp-synth (the guided source-synthesis permuter) on a function — beam search over 112 behaviour-neutral C++ transforms (signed/unsigned, declaration reorder, branch polarity, variable extraction, …), each scored with objdiff, to drive a near-match toward 100%. Use when a function is below 100% and you want to automatically try source variations.
Diff stack-frame layouts between target and base for a function. Labels base-side slots with source variable names from a MSVC /Z7 CodeView recompile. Identifies SWAPPED pairs (decl-reorder candidates), SHIFTED slots, DIFFER (different variables in same slot), and TGT_ONLY / BASE_ONLY (extra/missing locals). Filters out callee-save slots.
Dump vtable layout for a class from original COFF .obj files. Maps each slot to the actual virtual function symbol AND its declaration-order name from the class header, so ICF-merged entries (OnlyReturns / merged_Returns1 / etc.) are still identifiable. Use when debugging vtable offset mismatches in objdiff.
Diff a DATA symbol (vtable ??_7Class@@6B@, RTTI, pointer/jump table, string pool, static initializer) between the target and the decompiled build, showing byte differences and — for each relocation slot — which function/symbol each side points to. Use when a data symbol is below 100%, or to find which vtable slot resolves to the wrong function. The MCP run_objdiff wrapper does not expose data diffs, so this calls objdiff-cli directly.
Run DC3's original Xbox 360 debug XEX on Xenia (Linux/Vulkan) and navigate to gameplay. Captures headless frames of menus, song select, loading, and in-game venues with 3D characters. Use when testing original binary behavior, capturing IK telemetry, or comparing Xbox vs native rendering.