Export a separate object file for every routine

[dariox86]

I performed a matching decompilation of a few C functions from an old Windows 95 video game. Having tried out a few different approaches I came to the conclusion that I need to automate the process to speed things up. objdiff seems to fit the bill, but it looks like it needs a single object file for every single source function. I could not find a way to use ghidra-delinker-extension to export a single object file for every routine. Am I missing something obvious?

[boricj]

If you need to bulk export lots of object files, you can use Ghidra's scripting capabilities to drive the analyzer and/or exporters programatically. I'm aware of three such scripts out there:

• My own DelinkProgram.java for headless usage. I wrote this to integrate delinking as part of a build system, for a modding framework. If it's for a one-off or once in a while export, you probably want to use an interactive version instead, it's a bit of a hassle to set up.
• th06's ExportDelinker.java for interactive usage, driven by a CSV file.
• FUELDecompilation's delink.py for interactive usage, driven by a JSON file. It's no longer used by that project, but it's still relevant for your usecase.

Most power users of my extension write their own scripts to automate their workflows. I should add more example scripts in this repository to demonstrate this aspect.

[dariox86]

Actually what I need is a one-off solution. I tried all the solutions you pointed out without success.

• DelinkProgram.java informs me that the process is finished, although I see no file being generated.
• ExportDelinker.java throws an error message: «Cannot load from object array because the return value of "java.lang.Class.getEnumConstants()" is null», etc..
• delink.py asks for a JSON file with the functions to be exported, but I do not know how to generate such file.

I am not fond of Ghidra's user interface, thus I am not familiar nor comfortable with both Ghidra's workflow and its scripting languages. Eventually I will find a way on my own. Thank you very much for your support!