https://github.com/iij/mruby-mdebug
mruby debugger
https://github.com/iij/mruby-mdebug
Last synced: about 1 month ago
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mruby debugger
- Host: GitHub
- URL: https://github.com/iij/mruby-mdebug
- Owner: iij
- Created: 2013-04-18T03:20:56.000Z (about 12 years ago)
- Default Branch: master
- Last Pushed: 2013-06-21T07:48:19.000Z (almost 12 years ago)
- Last Synced: 2025-01-29T00:30:42.393Z (3 months ago)
- Language: C
- Size: 117 KB
- Stars: 2
- Watchers: 10
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# mruby-mdebug
**(pre-alpha release)**
mruby-mdebug helps you to debug mruby script and mruby interpreter.
## How to use
0. install GNU readline library
1. add 2 lines to your build\_config.rb
```Ruby
conf.cc.defines << %w(ENABLE_DEBUG)
conf.gem :github => "iij/mruby-mdebug"
```
2. build mruby
3. run ``bin/mrdb``
## Example
```text
% bin/mrdb c1.rb
mruby debugger
c1.rb:23:end
(mrdb)l
=> l
[18, 25] in c1.rb
18 end
19
20 def z
21 true
22 end
=> 23 end
24 p A.new.a
(mrdb)vm
=> vm
Callinfo:
ci[0]: nregs=4, ridx=0, eidx=0, stackidx=0, method=(null), irep 469
Stack (base) [* => mrb->stack]:
004 (MODULE:0x208e93b10)
003 (CLASS:0x208e942c0)
002 false
001 false
*000 main
Rescue list:
(none)
Ensure list:
(none)
Environment:
(none)
(mrdb)l 9
=> l 9
[4, 14] in c1.rb
4 begin
5 b
6 rescue TypeError
7 r = self.z
8 end
9 [ r, @e ]
10 end
11
12 def b
13 begin
(mrdb)b 7
=> b 7
(mrdb)c
=> c
c1.rb:7: r = self.z
(mrdb)l
=> l
[2, 12] in c1.rb
2 def a
3 r = @e = false
4 begin
5 b
6 rescue TypeError
=> 7 r = self.z
8 end
9 [ r, @e ]
10 end
11
(mrdb)vm
=> vm
Callinfo:
ci[1]: nregs=5, ridx=0, eidx=0, stackidx=0, method=a, irep 471
ci[0]: nregs=4, ridx=0, eidx=0, stackidx=0, method=(null), irep 469
Stack (base) [* => mrb->stack]:
005 (OBJECT:0x208e937b0)
004 false
003 false
*002 (OBJECT:0x208e938a0)
001 main
000 main
Rescue list:
(none)
Ensure list:
(none)
Environment:
(none)
(mrdb)
Bye.
```
## Available Commands
```text
MRuby Debugger help
b[reak] set a breakpoint
c[ont] continue
h[elp] show command reference
l[ist] show source code
n[ext] step program
vm show internal structures of VM
```