1.4 KiB
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, however this change is vendored until Go 1.4 lands, so the project is go get-able.
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
- Readline integration
Usage
The debugger can be launched in three ways:
-
Allow it to compile, run, and attach to a program:
$ dbg -run -
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.
$ sudo 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. -
print $var- Evaluate a variable.
Upcoming features
- Handle Gos multithreaded nature better
- In-scope variable evaluation
- In-scope variable setting
- Support for OS X
License
MIT