alaricsenat / nm-otool

Toy implementation of nm & otool

nm-otool

Toy implementation of nm & otool bsd commands. The general idea was to learn how a binary file work and how to parse it properly.

These tools only support mach-o files.

Build & run

Just run make, it will generate ft_nm and ft_otool.

Tests

You can test nm with some system binaries by launching make test_all. It will assert there is no output difference between my implementation and the current system implementation. Tests will take some time to complete!

ft_nm

Usage

./ft_nm -uUrpj [FILE ...]

Options

-u     Display only undefined symbols.
-U     Don't display undefined symbols.
-r     Sort in reverse order.
-p     Don't sort; display in symbol-table order.
-j     Just display the symbol names (no value or type).

ft_otool

Usage

./ft_otool -td [FILE ...]

Options

-t     Display the contents of the (__TEXT,__text) section.
-d     Display the contents of the (__DATA,__data) section.

This project is a student exercise and is by no mean intended to be used for real