decomp-toolkit

GameCube/Wii decompilation project tools.

This provides various commands that assist with creating a build system that works across all major platforms without dealing with platform-specific C compilers, UNIX compatibility layers like msys2, or other idiosyncrasies.

Commands

ar create

Create a static library (.a) from the input objects.

$ dtk ar create out.a input_1.o input_2.o
# or
$ echo input_1.o >> rspfile
$ echo input_2.o >> rspfile
$ dtk ar create out.a @rspfile

demangle

Demangles CodeWarrior C++ symbols. A thin wrapper for cwdemangle.

$ dtk demangle 'BuildLight__9CGuiLightCFv'
CGuiLight::BuildLight() const

elf disasm

Disassemble an unstripped CodeWarrior ELF file into fully-split & fully-shiftable assembly files.

$ dtk disasm input.elf out

elf fixup

Fixes issues with GNU assembler-built objects to ensure compatibility with mwldeppc.

• Strips empty sections
• Generates section symbols for all allocatable sections
• Where possible, replaces section-relative relocations with direct relocations.
• Adds an (asm) suffix to the file symbol. (For matching progress calculation)

# input and output can be the same
$ dtk elf fixup file.o file.o

elf2dol

Creates a DOL file from the provided ELF file.

$ dtk elf2dol input.elf output.dol

map

Processes CodeWarrior map files and provides information about symbols and TUs.

$ dtk map entries Game.MAP 'Unit.o'
# Outputs all symbols that are referenced by Unit.o
# This is useful for finding deduplicated weak functions,
# which only show on first use in the link map.

$ dtk map symbol Game.MAP 'Function__5ClassFv'
# Outputs reference information for Function__5ClassFv
# CodeWarrior link maps can get very deeply nested,
# so this is useful for emitting direct references
# in a readable format.

shasum

Calculate and verify SHA-1 hashes.

$ dtk shasum baserom.dol
949c5ed7368aef547e0b0db1c3678f466e2afbff  baserom.dol

$ dtk shasum -c baserom.sha1 
baserom.dol: OK