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iometa

Extracts C++ class runtime information from an arm64 Darwin kernel.
Class names, inheritance, vtables, methods, etc.

Building

Should be simple enough:

make

Links against CoreFoundation and IOKit though, so probably only works on Darwin platforms.

Usage

Run with no arguments for exhaustive help.

Examples:

iometa kernel                                   # List all classes
iometa -a kernel                                # List all classes with more info
iometa -A kernel                                # List all classes and print all virtual methods
iometa -AC IOSurfaceRoot kernel                 # Print info and methods of class IOSurfaceRoot
iometa -Ae IOSurfaceRoot kernel                 # Print info and methods of all classes extending IOSurfaceRoot
iometa -Ap IOSurfaceRoot kernel                 # Print info and methods of all classes from which IOSurfaceRoot inherits
iometa -AB com.apple.iokit.IOSurface kernel     # Print info and methods of classes from kext com.apple.iokit.IOSurface
iometa -M kernel >map.txt                       # Create symbol map
iometa -A kernel map.txt                        # List all classes with virtual methods, and resymbolicate them
iometa -R kernel map.txt                        # Generate a radare2 script file with all symbols

For more info on symbol maps and resymbolication, see /sym.

License

MPL2 with Exhibit B.