What is this project?

A tool for patching binary files(.exe)

How To Build

To build patcher:
- Recommended compiler: MSYS2 with mingw-w64-i686-gcc
- cd into patcher directory and target make or mingw32-make
To build patch:
- Run FaP.exe to be create default config.txt.
- If necessary, correct the config file.
- Put patch files into patcher dir(hooks, section)
- Put base file(the copy will be patched) into patcher dir.
- Run FaP.exe
Config file options:
- oldfile specifies the path + file to be patched(base file)
- newfile specifies the path + file to be make.
- newsect the name of the section to be created(begins with ., max 8 chars)
- sectsize the size(hex) of newsect(to disable it, set 0)
- cflags common compiler flags.

Make hooks & section dirs.
- hooks for patches putting into existing sections.
- section for putting into new section.
Put .cpp files.
Make section.ld if not exists.
For section no special rules.
Hooks rules:
- In each hook file may be several hooks.
- For each hook need header: asm(".section h*; .set h*,**;")
  - * is hook name(max 6 chars), ** virtual address to be placed.
- For using symbols of section from asm need use macro QU.
  - Example: "JMP "QU(BuildUnit)";"
- Available .text.startup as STARTUP
Signature patches
- Make SigPatches.txt file.
- Available line types:
  - Empty line.
  - Line starts with // - comment.
  - Line pair, where first line is signature, second is patch.
- Signature and patch is hex bytes, that may be separate by space.
- ?? in signature or patch is skip byte.
- Patch may be shorten then signature. But not longer.
PatcherList
- May be defined only in section root.
- List definition: //PatcherList_arrayName
- List element definition: //PatcherList_arrayName_fieldName
- List link: extern void *arrayName[];