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Re: [simspark-devel] Link error: undefined reference to typeinfo for [...]
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From: Hedayat V. <hed...@ai...> - 2010-04-04 21:04:17
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Hi,<br>
IMHO, the problem is that this class (BallStateAspect) is defined in
the "soccer" plugin (in rcssserver3d project). Plugins are not linked
to the applications (e.g. rcssserver3d) in our project (also notice
that such libraries do not begin with "lib" prefix, so we have
soccer.so not libsoccer.so), so if you use a class defined in a plugin
you should link that library to your executable explicitly or include
the corresponding source files as the executable sources.<br>
<br>
Good luck,<br>
Hedayat<br>
<br>
<br>
<span>
<style type="text/css">blockquote {color: navy !important; background-color: RGB(245,245,245) !important; padding: 0 15 10 15 !important; margin: 15 0 0 0; border-left: #1010ff 2px solid;} blockquote blockquote {color: maroon !important; background-color: RGB(235,235,235) !important; border-left-color:maroon !important} blockquote blockquote blockquote {color: green !important; background-color: RGB(225,225,225) !important; border-left-color:teal !important} blockquote blockquote blockquote blockquote {color: purple !important; background-color: RGB(215,215,215) !important; border-left-color: purple !important} blockquote blockquote blockquote blockquote blockquote {color: teal !important; background-color: RGB(205,205,205) !important; border-left-color: green !important}</style><i><b>Huang
Yaolong
<a class="moz-txt-link-rfc2396E" href="mailto:air...@gm..."><air...@gm...></a></b></i>
wrote on 03/31/2010 10:36:02
AM +0450:</span><br>
<blockquote
style="border-left: 2px solid rgb(16, 16, 255); color: navy; background-color: rgb(245, 245, 245); padding-left: 15px;"
cite="mid:h2h...@ma..."
type="cite">Hi, all.<br>
<br>
Today I tried to modify the main.cpp in rcssserver3d and run my test.
But I got the following link error:<br>
-------------------------------------------- <br clear="all">
CMakeFiles/rcssserver3d.dir/main.cpp.o: In function
`boost::shared_ptr<BallStateAspect>
boost::shared_dynamic_cast<BallStateAspect,
zeitgeist::Leaf>(boost::shared_ptr<zeitgeist::Leaf>
const&)':<br>
main.cpp:(.text._ZN5boost19shared_dynamic_castI15BallStateAspectN9zeitgeist4LeafEEENS_10shared_ptrIT_EERKNS4_IT0_EE[boost::shared_ptr<BallStateAspect>
boost::shared_dynamic_cast<BallStateAspect,
zeitgeist::Leaf>(boost::shared_ptr<zeitgeist::Leaf>
const&)]+0x29):
undefined reference to `typeinfo for
BallStateAspect'<br>
collect2: ld returned 1 exit status<br>
make[2]: *** [rcssserver3d/rcssserver3d] Error 1<br>
make[1]: *** [rcssserver3d/CMakeFiles/rcssserver3d.dir/all] Error 2<br>
make: *** [all] Error 2<br>
---------------------------------------------<br>
<br>
Here is my modification: (main.cpp is the modified version,
main.bak.cpp is the original one)<br>
<br>
--- main.cpp��� 2010-03-31 13:54:31.000000000 +0800<br>
+++ main.bak.cpp��� 2010-03-24 13:02:38.000000000 +0800<br>
@@ -2,7 +2,7 @@<br>
��� this file is part of rcssserver3D<br>
��� Fri May 9 2003<br>
��� Copyright (C) 2003 Koblenz University<br>
-�� $Id: main.cpp 140 2010-01-10 23:45:10Z hedayat $<br>
+�� $Id: main.cpp 181 2010-02-28 10:55:34Z marianbuchta $<br>
�<br>
��� This program is free software; you can redistribute it and/or modify<br>
��� it under the terms of the GNU General Public License as published by<br>
@@ -25,12 +25,6 @@<br>
�#include <kerosin/renderserver/rendercontrol.h><br>
�#include <kerosin/inputserver/inputcontrol.h><br>
�<br>
-#include <salt/vector.h><br>
-#include <oxygen/agentaspect/agentaspect.h><br>
-#include <../plugin/soccer/ball/ball.h><br>
-#include <../plugin/soccer/soccerbase/soccerbase.h><br>
-#include <../plugin/soccer/soccertypes.h><br>
-#include <../plugin/soccer/ballstateaspect/ballstateaspect.h><br>
�#ifdef HAVE_CONFIG_H<br>
�#undef PACKAGE_NAME<br>
�#include <rcssserver3d_config.h><br>
@@ -77,7 +71,7 @@<br>
���� GetLog()->Normal()<br>
�������� << "rcssserver3d (formerly simspark), a monolithic
simulator 0.6.1\n"<br>
�������� << "Copyright (C) 2004 Markus Rollmann, \n"<br>
-������� << "Universit?t Koblenz.\n"<br>
+������� << "Universit�t Koblenz.\n"<br>
�������� << "Copyright (C) 2004-2009, "<br>
�������� << "The RoboCup Soccer Server Maintenance Group.\n"<br>
�������� << "\nType '--help' for further information\n\n";<br>
@@ -134,7 +128,7 @@<br>
���� GetScriptServer()->Run(mScriptPath);<br>
�<br>
���� // tell the inputControl node the loaction of our camera<br>
-��� shared_ptr<InputControl> inputCtr = GetInputControl();<br>
+��� boost::shared_ptr<InputControl> inputCtr = GetInputControl();<br>
���� if (inputCtr.get() != 0)<br>
���� {<br>
��������
inputCtr->SetFPSController("/usr/scene/camera/physics/controller");<br>
@@ -142,63 +136,26 @@<br>
�<br>
���� return true;<br>
�}<br>
-SimSpark sparkinstance("../../");<br>
-void Test(){<br>
- SimSpark *spark=&sparkinstance;<br>
- int cycle=0;<br>
- while(cycle<=0){<br>
-� cycle=spark->GetSimulationServer()->GetCycle();<br>
-� cout <<cycle <<endl;<br>
-� spark->GetLog()->Normal()<< "Simulation Server was
running\\n";<br>
- }<br>
- boost::shared_ptr<Ball> ball;<br>
- shared_ptr<Scene> scene=spark->GetActiveScene();<br>
- <br>
- /*<br>
- ball = shared_dynamic_cast<Ball><br>
-����������� (spark->GetCore()->Get(scene->GetFullPath() +
"Ball"));<br>
- shared_ptr<BallStateAspect> ballStateAspect =
shared_dynamic_cast<BallStateAspect><br>
-�����������
(spark->GetCore()->Get("/sys/server/gamecontrol/BallStateAspect"));<br>
- boost::shared_ptr<oxygen::AgentAspect> agent =
spark->GetSimulationServer()-><br>
-� GetGameControlServer()->GetAgentAspect(1);<br>
-� */<br>
- <br>
- <br>
-<br>
- const salt::Vector3f force(1.0,2.0,3.0);<br>
- const salt::Vector3f torque(1.0,2.0,3.0);<br>
- <br>
- //ball->SetAcceleration(cycle, force,torque,agent);<br>
- //ball->PrePhysicsUpdateInternal(10);<br>
- //spark->GetSimulationServer()->GetSceneServer()-><br>
- <br>
- while(true){<br>
-� //cout << agent->ID() << endl;<br>
- }<br>
-}<br>
�<br>
�int main(int argc, char** argv)<br>
�{<br>
���� // the spark app framework instance<br>
-�� <br>
- <br>
-��� if (! sparkinstance.Init(argc, argv))<br>
+��� SimSpark spark("../../");<br>
+<br>
+��� if (! spark.Init(argc, argv))<br>
���� {<br>
�������� return 1;<br>
���� }<br>
- boost::thread thrd(Test);<br>
- //thrd.detach();<br>
-�� <br>
- sparkinstance.GetSimulationServer()->Run(argc,argv);<br>
- thrd.join();<br>
�<br>
-��� shared_ptr<RenderControl> renderCtr =
sparkinstance.GetRenderControl();<br>
+��� spark.GetSimulationServer()->Run(argc,argv);<br>
+<br>
+��� boost::shared_ptr<RenderControl> renderCtr =
spark.GetRenderControl();<br>
���� if (renderCtr.get() != 0)<br>
���� {<br>
-������� sparkinstance.GetLog()->Normal()<br>
+������� spark.GetLog()->Normal()<br>
������������ << "Average FPS: "<br>
������������ << renderCtr->GetFramesRendered() /<br>
-����������� sparkinstance.GetSimulationServer()->GetTime()<br>
+����������� spark.GetSimulationServer()->GetTime()<br>
������������ << "\n";<br>
���� }<br>
�<br>
The link error appeared after I uncomment the following lines:<br>
===========================================<br>
- ball = shared_dynamic_cast<Ball><br>
-����������� (spark->GetCore()->Get(scene->GetFullPath() +
"Ball"));<br>
- shared_ptr<BallStateAspect> ballStateAspect =
shared_dynamic_cast<BallStateAspect><br>
-�����������
(spark->GetCore()->Get("/sys/server/gamecontrol/BallStateAspect"));<br>
- boost::shared_ptr<oxygen::AgentAspect> agent =
spark->GetSimulationServer()-><br>
-� GetGameControlServer()->GetAgentAspect(1);<br>
===========================================<br>
<br>
And I search on the net for the type of the error. It seems that some
classes in the hierarchy have some null non-pure virtual functions.<br>
What's the real problem about this error?? How do I get the
modification work??<br>
<br>
-- <br>
Best regards,<br>
Yaolong Huang(Curtis)<br>
<br>
Tianjin University, China<br>
<br>
Blog: <a moz-do-not-send="true" href="http://blog.csdn.net/airekans/">http://blog.csdn.net/airekans/</a><br>
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