2014-05-03 20:31:52 +00:00
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# DBG
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2014-07-21 16:40:21 +00:00
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### What is DBG?
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2014-05-03 20:31:52 +00:00
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2014-07-21 16:44:53 +00:00
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DBG is a Go debugger, written primarily in Go. It really needs a new name.
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2014-05-03 20:31:52 +00:00
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2014-08-23 13:50:18 +00:00
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### Building
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2014-08-27 22:47:04 +00:00
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Currently, DBG requires the following [patch](https://codereview.appspot.com/117280043/) to be applied to your Go source to build.
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2014-08-23 13:50:18 +00:00
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2014-07-21 16:40:21 +00:00
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### Features
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* Attach to (trace) a running process
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2014-08-27 22:51:56 +00:00
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* Ability to launch a process and begin debugging it
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2014-07-21 16:40:21 +00:00
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* Set breakpoints
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* Single step through a process
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* Next through a process (step over / out of subroutines)
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* Never retype commands, empty line defaults to previous command
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### Usage
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2014-08-27 22:51:56 +00:00
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The debugger can be launched in two ways:
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* Provide the name of the program you want to debug, and the debugger will launch it for you.
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2014-08-28 01:33:46 +00:00
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```
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2014-08-27 22:51:56 +00:00
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$ dbg -proc path/to/program
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2014-08-28 01:33:46 +00:00
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```
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2014-08-27 22:51:56 +00:00
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* Provide the pid of a currently running process, and the debugger will attach and begin the session.
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2014-08-28 01:33:46 +00:00
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```
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2014-08-28 01:19:15 +00:00
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$ sudo dbg -pid 44839
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2014-08-28 01:33:46 +00:00
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```
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2014-08-27 22:51:56 +00:00
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Once inside a debugging session, the following commands may be used:
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2014-07-21 16:41:50 +00:00
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* `break` - Set break point at the entry point of a function, or at a specific file/line. Example: `break foo.go:13`.
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2014-07-21 16:40:21 +00:00
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2014-07-21 16:41:50 +00:00
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* `step` - Single step through program.
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2014-07-21 16:40:21 +00:00
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2014-07-21 16:41:50 +00:00
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* `next` - Step over to next source line.
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2014-07-21 16:40:21 +00:00
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### Upcoming features
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2014-09-12 13:13:14 +00:00
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* Handle Gos multithreaded nature better
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2014-07-21 16:40:21 +00:00
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* In-scope variable evaluation
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* In-scope variable setting
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* Readline integration
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2014-07-30 00:00:03 +00:00
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* Support for OS X
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2014-07-21 16:40:21 +00:00
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### License
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2014-05-03 20:31:52 +00:00
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MIT
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