IDAObjcTypes

A collection of (public and private) types and functions definitions useful for Objective-C binaries analysis.

Why even?

Would you rather re-define the same functions or types over and over as you work with different binaries?

Usage (IDA Pro)

Go to

File > Load file > Parse C header file

IDA.h

Or, run this IDA command:

idaapi.idc_parse_types("/path/to/IDAObjcTypes/IDA.h", idc.PT_FILE)

Usage (Ghidra)

1. Go to

   File > Parse C Source

   .
2. (Go to 6. if it's not the first time you do this) Clone

   objc_mac_carbon.prf

   profile into a new profile, called

   OBJC.prf

   , for example.
3. Remove everything in

   Source files to parse

   , and add

   IDA.h

   to the list.
4. Add two additional flags:

   -D__EA64__ -DGHIDRA

   to Parse Options.
5. Save

   OBJC.prf

   profile as you might use it later.
6. Click

   Parse to Program

   , click

   Proceed

   if anything pops up.
7. Check

   Data Type Manager

   window (at bottom-left), (long) right-click at
   and select

   Apply Function Data Types

   .

Ghidra limitation

You have to manually specify the size of enum members if what you get is incorrect.

Included Frameworks/Libraries

More to be added as the owner reverses more binaries. - AppSupport - AudioToolbox - AVFoundation - CommonCrypto - CoreAnimation - CoreAudio - CoreFoundation - CoreGraphics - CoreMedia - CoreText - CoreServices - CoreVideo - CydiaSubstrate (if you ever want to RE tweaks) - Darwin - Foundation - GraphicsServices - IOKit - IOSurface - Kernel - MobileGestalt - Security - Swift (WIP, PRs welcome) - System (libSystem) - UIKit - dyld - icu - objc - os - pthread - sandbox - sqlite - xpc