SLF4P is a simple logging facade for Object Pascal, tested with Delphi 2009 / DUnit and Free Pascal 2.6.4 / FPCUnit and 3.0, inspired by SLF4J.
The source code contains bindings to the Log4D logging framework, a SimpleLogger and a NOPLogger implementation. DUnit and FPCUnit test projects are included. Wiki with usage example: https://github.com/michaelJustin/slf4p/wiki
Current release: 0.1.0-alpha