DBG

What is DBG?

DBG is a Go debugger, written primarily in Go. It really needs a new name.

Building

Currently, DBG requires the following patch to be applied to your Go source to build.

Features

• Attach to (trace) a running process
• Ability to launch a process and begin debugging it
• Set breakpoints
• Single step through a process
• Next through a process (step over / out of subroutines)
• Never retype commands, empty line defaults to previous command

Usage

The debugger can be launched in two ways:

• Provide the name of the program you want to debug, and the debugger will launch it for you.

  $ dbg -proc path/to/program

• Provide the pid of a currently running process, and the debugger will attach and begin the session.

  $ dbg -pid 44839

Once inside a debugging session, the following commands may be used:

• break - Set break point at the entry point of a function, or at a specific file/line. Example: break foo.go:13.

• step - Single step through program.

• next - Step over to next source line.

Upcoming features

• Handle Gos multithreaded nature better (follow goroutine accross thread contexts)
• In-scope variable evaluation
• In-scope variable setting
• Readline integration
• Ability to launch debugging session from debugged program, with breakpoint set correctly
• Support for OS X

License

MIT