| Author |
Message |
< Erlang ~ Starting Debugger in Program, not in shell |
| chmaruni |
 Posted: Thu Mar 18, 2010 11:34 am |
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Joined: 07 Oct 2009
Posts: 4
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Hi,
I have some problems using the debugger. They might or might not be related.
To start, I use an Emakefile that looks something like this:
Code:
{ './src/*', [debug_info, {pa,".."},
{ i, "./include" },
{ outdir, "./ebin" }
]}.
and compile it with erl -make. So I am pretty sure that I include the debug info into the .beam file (oh, and I use a current Erlang R13B04).
If I now try to open the debugger in the shell with
Code:
Eshell V5.7.5 (abort with ^G)
1> im().
<0.34.0>
2> ii(analyzer).
** Invalid beam file or no abstract code: analyzer
error
3>
where 'analyzer' is a module of mine, you see that it doesn't work. The debugger window pops up as expected, but the error message sounds as if the beam file doesn't contain debugging info...
I obviously don't want to do a c(analyzer,[debug_info]) manually every time, so I hope that the erlang make tool can do that! I tried the debugger with a little toy project and a manual c(mymodule, [deebug_info]). on the terminal before which worked fine. But as I understand it, erl -make should work just as well, right? otherwise, this debug_info stuff in the Emakefile would be rather useless... I also would prefer to not use ecc +debug_info in a makefile because I'd like to avoid having an extra makefile unless I really have to (so I didn't try this option and couldn't tell you whether that works or not...)
My second question is whether it's possible to start the debugger from inside a program; so not from the shell. I start eunit to execute some tests and I tried to programmatically start a debugger and set a breakpoint in a test-function:
Code:
some_test() ->
i:im(),
i:ii(analyzer),
i:iaa([init]),
i:ib(analyzer, analyze, 2),
analyzer:analyze(one, two).
In this case, the debugger window opened but is closed again right away. I didn't see any error messages, but it could be that eunit just swallowed them. So it may very well be that this problem is exactly the same as the above, namely that the debugger cannot attach to the analyzer module and the test therefore executes normally without hitting the breakpoint. But I have no idea, to be honest...
Help would be appreciated!
Thanks
Christoph |
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| wuji |
| Posted: Sat Aug 11, 2012 1:19 am |
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Posts: 654
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| dongdongwu |
| Posted: Thu Sep 20, 2012 5:35 am |
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Posts: 236
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