delve/README.md
2014-09-12 08:12:54 -05:00

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# 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](https://codereview.appspot.com/117280043/) 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.
```
$ 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.
### Upcoming features
* Handle Gos multithreaded nature better (follow goroutine accross thread contexts)
* In-scope variable evaluation
* In-scope variable setting
* Readline integration
* Support for OS X
### License
MIT