newbie: plugin loaded?

Sun Nov 13 01:13:29 UTC 2005

Brad Fuller wrote:

> Bert Freudenberg wrote:
>
>>
>> Am 12.11.2005 um 01:12 schrieb Brad Fuller:
>>
>>> Bert Freudenberg wrote:
>>>
>>>>
>>>> Am 11.11.2005 um 22:46 schrieb Brad Fuller:
>>>>
>>>>>
>>>>> $ ioLoadModule(/usr/local/lib/squeak/3.7-7/SoundPAPlugin):
>>>>>  /usr/local/lib/squeak/3.7-7/SoundPAPlugin: undefined symbol:   
>>>>> Pa_GetDeviceInfo
>>>>>
>>>>> Pa_GetDeviceInfo  is in a library accessible to all (usr/local/ 
>>>>> lib/ libportaudio.so).
>>>>
>>>>
>>>>
>>>>
>>>> You need to link libportaudio.so into SoundPAPlugin.
>>>
>>>
>>>
>>> doh! I was wrong.
>>> And, I can't figure out how slip in a library link so that I don't  
>>> have to create a custom makefile.
>>> I see from the documentation that you can use m4 macros or a  
>>> makefile.inc file. But, I can't figure out how to do it.
>>> Any pointers to docs would be much appreciated. Do you have any  
>>> examples?
>>
>>
>>
>> Sure:
>>
>> platforms/unix/plugins % grep PLIBS */Makefile.inc
>> ObjectiveCPlugin/Makefile.inc:PLIBS=    -Wl,-framework -Wl,Foundation
>>
>> ... which is used in:
>>
>> platforms/unix/plugins %  egrep -v '^(#|$)' ../config/Makefile.plg.in
>> [make_cfg]
>> [make_plg]
>> XINCLUDES       = [includes]
>> OBJS            = [targets]
>> TARGET          = [target]
>> PLIBS           = [plibs]
>> [make_inc]
>> $(TARGET) : $(OBJS) Makefile
>>         $(LINK) $(TARGET) $(OBJS) $(PLIBS)
>>         $(RANLIB) $(TARGET)
>> [make_targets]
>> .force :
>
>
> Thanks Bert, that's what I tried, but I forget to use "Wl". So, I 
> tried that but I still can't get the macros to work.
>
> I really have two problems that maybe you've seen.
>
> ** Problem 1:
> I've placed:
> PLIBS=Wl,-L/usr/local/lib/ Wl,-llibportaudio.so
> in Makefile.inc
>
> deleted Makefile, run config/configure (to create the Makefile)
> And the PLIBS = line is still empty.
>
> Don't know what to do about that.
>
> ====
> My second, more important problem, is I still get the runtime error 
> when manually editing the Makefile by placing:
> PLIBS        = Wl,-L/usr/local/lib/ Wl,-llibportaudio.so
>
> (I assume I need to pass the location with -L and the file with -l)
>
> During the link phase of the make, it seems to link ok, with no errors.
> And after "make install" I try the plugin in Squeak and I still 
> receive the error:
> ioLoadModule(/usr/local/lib/squeak/3.7-7/SoundPAPlugin):
>  /usr/local/lib/squeak/3.7-7/SoundPAPlugin: undefined symbol: 
> Pa_GetDeviceInfo
>
> I'm not familiar with what format the switches should be in to be 
> passed from libtool to ld. So, I tried just:
> PLIBS        = -Wl,/usr/local/lib/libportaudio.so
> (without the '-l') and that made a bit of progress. I didn't get the 
> "undefined symbol at runtime.
>
> However, I got a segmentation fault immediately. :-(
> It know my external file in the Cross directory was called because I 
> have a printf in the file that did print to the console and it printed.
> After the segfault, was a log that didn't make much sense. Here's the 
> top:
> ==
> PortAudio Test: output sine wave. SR = 44100, BufSize = 64
>
> Segmentation fault
>
> 2036700292 UndefinedObject>DoIt
> 2036668572 Compiler>evaluate:in:to:notifying:ifFail:logged:
> 2036669032 [] in ParagraphEditor>evaluateSelection
> 2036668388 BlockContext>on:do:
> 2036668296 ParagraphEditor>evaluateSelection
> 2036641436 [] in PluggableTextMorph>doIt
> 2036656868 [] in PluggableTextMorph>handleEdit:
> 2036656368 TextMorph>handleEdit:
> 2036640792 PluggableTextMorph>handleEdit:
> 2036640516 PluggableTextMorph>doIt
> 2036640424 StringHolder>perform:orSendTo:
> ==
>
> So maybe
> * the library is made wrong? It's a shared library.
> * Maybe I didn't set up the plugin (or primitive) correctly?
> * Maybe Squeak can't wait for a bit to play a sine wave. I didn't set 
> up any buffers in Squeak so I can't see how any garbage collection 
> would be a problem.
>
> This is a big problem, so I probably did something obviously wrong.
>
> Any ideas or pointers where to look is much appreciated.
>
> Thanks for your help!

I now assume I rcv'd the segfault because I didn't have the jackd running.
After starting up jackd and running the test from squeak, the computer 
locks up for about 30secs. then it comes alive again after Squeak dies. 
The console output is:

Killed

Which I assume is from Squeak.

Still, this problem might be an interaction between Squeak and portaudio 
library. Don't know what it could be though.
And still a serious problem.

BTW, I probably should have copied the complete Squeak dump (when jackd 
wasn't running). Here it is for history:
===
PortAudio Test: output sine wave. SR = 44100, BufSize = 64

Segmentation fault

2037525692 UndefinedObject>DoIt
2037493972 Compiler>evaluate:in:to:notifying:ifFail:logged:
2037494432 [] in ParagraphEditor>evaluateSelection
2037493788 BlockContext>on:do:
2037493696 ParagraphEditor>evaluateSelection
2037466836 [] in PluggableTextMorph>doIt
2037482268 [] in PluggableTextMorph>handleEdit:
2037481768 TextMorph>handleEdit:
2037466192 PluggableTextMorph>handleEdit:
2037465916 PluggableTextMorph>doIt
2037465824 StringHolder>perform:orSendTo:
2037465456 [] in MenuItemMorph>invokeWithEvent:
2037465180 BlockContext>ensure:
2037465088 Cursor>showWhile:
2037364312 MenuItemMorph>invokeWithEvent:
2037364204 MenuItemMorph>mouseUp:
2037364112 MenuItemMorph>handleMouseUp:
2037363880 MouseButtonEvent>sentTo:
2037363788 Morph>handleEvent:
2037363696 MorphicEventDispatcher>dispatchDefault:with:
2037363604 MorphicEventDispatcher>dispatchEvent:with:
2037363512 Morph>processEvent:using:
2037363420 MorphicEventDispatcher>dispatchDefault:with:
2037363312 MorphicEventDispatcher>dispatchEvent:with:
2037363180 Morph>processEvent:using:
2037363088 Morph>processEvent:
2037362996 MenuMorph>handleFocusEvent:
2037362720 [] in HandMorph>sendFocusEvent:to:clear:
2037362812 [] in PasteUpMorph>becomeActiveDuring:
2037362628 BlockContext>on:do:
2037362536 PasteUpMorph>becomeActiveDuring:
2037362352 HandMorph>sendFocusEvent:to:clear:
2037362260 HandMorph>sendEvent:focus:clear:
2037362116 HandMorph>sendMouseEvent:
2037362024 HandMorph>handleEvent:
2037361724 HandMorph>processEvents
2037361816 [] in WorldState>doOneCycleNowFor:
2037361632 SequenceableCollection>do:
2037361540 WorldState>handsDo:
2037361448 WorldState>doOneCycleNowFor:
2037361356 WorldState>doOneCycleFor:
2037361264 WorldState>doOneSubCycleFor:
2037361172 PasteUpMorph>doOneSubCycle
2037353224 MenuMorph>invokeModalAt:in:allowKeyboard:
2037353132 MenuMorph>invokeModal:
2037352824 MenuMorph>invokeModal
2037347456 PluggableTextMorph>yellowButtonActivity:
2037347364 TextMorphForEditView>mouseDown:
2037347268 Morph>handleMouseDown:
2037347176 MouseButtonEvent>sentTo:
2037347084 Morph>handleEvent:
2037346932 MorphicEventDispatcher>dispatchMouseDown:with:
2037346840 MorphicEventDispatcher>dispatchEvent:with:
2037346748 Morph>processEvent:using:
2037346604 MorphicEventDispatcher>dispatchMouseDown:with:
2037346460 MorphicEventDispatcher>dispatchEvent:with:
2037346368 Morph>processEvent:using:
2037346276 MorphicEventDispatcher>dispatchMouseDown:with:
2037346184 MorphicEventDispatcher>dispatchEvent:with:
2037346092 Morph>processEvent:using:
2037345880 MorphicEventDispatcher>dispatchMouseDown:with:
2037345788 MorphicEventDispatcher>dispatchEvent:with:
2037345696 Morph>processEvent:using:
2037345604 MorphicEventDispatcher>dispatchMouseDown:with:
2037345512 MorphicEventDispatcher>dispatchEvent:with:
2037345404 Morph>processEvent:using:
2037345312 PasteUpMorph>processEvent:using:
2037345128 Morph>processEvent:
2037345036 HandMorph>sendEvent:focus:clear:
2037344892 HandMorph>sendMouseEvent:
2037344800 HandMorph>handleEvent:
2037344580 HandMorph>processEvents
2037344672 [] in WorldState>doOneCycleNowFor:
2037344488 SequenceableCollection>do:
2037344396 WorldState>handsDo:
2037344304 WorldState>doOneCycleNowFor:
2037344212 WorldState>doOneCycleFor:
2037344120 PasteUpMorph>doOneCycle
2032032752 [] in Project class>spawnNewProcess
2032032936 [] in BlockContext>newProcess
Aborted