[Flightgear-devel] Re: Undefined Symbols
[FlightGear-Devel readers: this is another installment in my quest to get FlightGear compiled under Mac OS X. I now have a good lead on the final link failure, I think. If you have any knowledge of linker naming conventions, symbol tables, and the like, I would appreciate your comments. Thanks. P.S. Everything is being built from CVS.] Previous make's were failing, unable to find gen_leaf or ssgVtxTable::ssgVtxTable. Sometime recently the call to gen_leaf was removed from the CVS code. Instead, three other symbols are now not being found. Here's the final make command along with output: david@Cynosure ~/FlightGear/src/main $ make g++ -DPKGLIBDIR=\"/Users/david/lib/FlightGear\" -g -O2 -D_REENTRANT -L/Users/david/lib -L/usr/X11R6/lib -o fgfs main.o fg_commands.o fg_init.o fg_io.o fg_props.o fgfs.o globals.o logger.o options.o splash.o util.o viewer.o viewmgr.o location.o ../../src/Aircraft/libAircraft.a ../../src/ATC/libATC.a ../../src/Autopilot/libAutopilot.a ../../src/Cockpit/libCockpit.a ../../src/Cockpit/built_in/libBuilt_in.a ../../src/Controls/libControls.a ../../src/FDM/libFlight.a ../../src/FDM/Balloon/libBalloon.a ../../src/FDM/ExternalNet/libExternalNet.a ../../src/FDM/JSBSim/libJSBSim.a ../../src/FDM/YASim/libYASim.a ../../src/FDM/JSBSim/filtersjb/libfiltersjb.a ../../src/FDM/LaRCsim/libLaRCsim.a ../../src/FDM/UIUCModel/libUIUCModel.a ../../src/GUI/libGUI.a ../../src/Input/libInput.a ../../src/Instrumentation/libInstrumentation.a ../../src/Model/libModel.a ../../src/Navaids/libNavaids.a ../../src/Scenery/libScenery.a ../../src/Scripting/libScripting.a ../../src/Sound/libSound.a ../../src/Airports/libAirports.a ../../src/Network/libNetwork.a ../../src/NetworkOLK/libNetworkOLK.a ../../src/Objects/libObjects.a ../../src/Systems/libSystems.a ../../src/Time/libTime.a ../../src/Environment/libEnvironment.a -lsgroute -lsgsky -lsgephem -lsgtiming -lsgio -lsgscreen -lsgmath -lsgbucket -lsgdebug -lsgmagvar -lsgmisc -lsgxml -lsgserial -lsgthreads -lplibpu -lplibfnt -lplibjs -lplibnet -lplibssg -lplibsg -lplibul -lplibpsl -lmk4 -lz -lpthread -lm -framework GLUT -framework OpenGL -framework Carbon -lobjc -lplibsl -lplibsm -framework IOKit -framework CoreFoundation -lm ld: warning table of contents of library: ../../src/FDM/JSBSim/libJSBSim.a not sorted slower link editing will result (use the ranlib(1) -s option) ld: Undefined symbols: trTileSize(_TRctx*, long, long, long) trImageSize(_TRctx*, long, long) trTileBuffer(_TRctx*, unsigned long, unsigned long, void*) ssgVtxTable::ssgVtxTable[in-charge](unsigned, ssgVertexArray*, ssgNormalArray*, ssgTexCoordArray*, ssgColourArray*) make: *** [fgfs] Error 1 I have been using nm to poke around and believe I know what is going on, even if I don't know how to fix it: david@Cynosure ~ $ nm -o lib/libsgscreen.a FlightGear/src/GUI/gui_funcs.o | egrep 'trTileSize|trImageSize|trTileBuffer' lib/libsgscreen.a:tr.o:1564 S _Z10trTileSizeP6_TRctxiii.eh lib/libsgscreen.a:tr.o:158c S _Z11trImageSizeP6_TRctxii.eh lib/libsgscreen.a:tr.o:01d4 T __Z10trTileSizeP6_TRctxiii FlightGear/src/GUI/gui_funcs.o: U __Z10trTileSizeP6_TRctxlll lib/libsgscreen.a:tr.o:03c8 T __Z11trImageSizeP6_TRctxii FlightGear/src/GUI/gui_funcs.o: U __Z11trImageSizeP6_TRctxll lib/libsgscreen.a:tr.o:036c T __Z12trTileBufferP6_TRctxjjPv FlightGear/src/GUI/gui_funcs.o: U __Z12trTileBufferP6_TRctxmmPv If you look closely at the "T" lines and the "U" lines, you will see that the symbol names do not match! No wonder the final link fails. I guess I need some way to get the compiler to generate the same symbol names. The other unfound symbol, ssgVtxTable::ssgVtxTable[in-charge] is trickier, but I found it. The sad thing is, the symbol names match, so I don't know why the symbol is not found. david@Cynosure ~ $ nm `find plib -type f -name \*.o -print` | egrep ssgVtxTable | egrep '^.[TU]' | sort +0.11 | uniq > foo david@Cynosure ~ $ nm `find FlightGear -type f -name \*.o -print` | egrep ssgVtxTable | egrep '^.[TU]' | sort +0.11 | uniq > bar david@Cynosure ~ $ cat bar U __ZN11ssgVtxTableC1EmP14ssgVertexArrayP14ssgNormalArrayP16ssgTexCoordArrayP14ssgColourArray david@Cynosure ~ $ egrep __ZN11ssgVtxTableC1EmP14ssgVertexArrayP14ssgNormalArrayP16ssgTexCoordArrayP14ssgColourArray foo U __ZN11ssgVtxTableC1EmP14ssgVertexArrayP14ssgNormalArrayP16ssgTexCoordArrayP14ssgColourArray 050c T __ZN11ssgVtxTableC1EmP14ssgVertexArrayP14ssgNormalArrayP16ssgTexCoordArrayP14ssgColourArray Regards, David K. Drum [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] Re: Undefined Symbols
Quoth David Drum: > I have been using nm to poke around and believe I know what is going on, > even if I don't know how to fix it: > > david@Cynosure ~ > $ nm -o lib/libsgscreen.a FlightGear/src/GUI/gui_funcs.o | egrep >'trTileSize|trImageSize|trTileBuffer' > lib/libsgscreen.a:tr.o:1564 S _Z10trTileSizeP6_TRctxiii.eh > lib/libsgscreen.a:tr.o:158c S _Z11trImageSizeP6_TRctxii.eh > lib/libsgscreen.a:tr.o:01d4 T __Z10trTileSizeP6_TRctxiii > FlightGear/src/GUI/gui_funcs.o: U __Z10trTileSizeP6_TRctxlll > lib/libsgscreen.a:tr.o:03c8 T __Z11trImageSizeP6_TRctxii > FlightGear/src/GUI/gui_funcs.o: U __Z11trImageSizeP6_TRctxll > lib/libsgscreen.a:tr.o:036c T __Z12trTileBufferP6_TRctxjjPv > FlightGear/src/GUI/gui_funcs.o: U __Z12trTileBufferP6_TRctxmmPv > > If you look closely at the "T" lines and the "U" lines, you will see that > the symbol names do not match! No wonder the final link fails. I guess > I need some way to get the compiler to generate the same symbol names. I have just solved this problem using the brute-force method: # get rid of the current object file david@Cynosure ~/FlightGear/src/GUI $ rm gui_funcs.o # remake the object file david@Cynosure ~/FlightGear/src/GUI $ make source='gui_funcs.cxx' object='gui_funcs.o' libtool=no \ depfile='.deps/gui_funcs.Po' tmpdepfile='.deps/gui_funcs.TPo' \ depmode=gcc3 /bin/sh ../../depcomp \ g++ -DHAVE_CONFIG_H -I. -I. -I../../src/Include -I../.. -I../../src -I/Users/david/include -I/usr/X11R6/include -g -O2 -D_REENTRANT -c -o gui_funcs.o `test -f 'gui_funcs.cxx' || echo './'`gui_funcs.cxx rm -f libGUI.a ar cru libGUI.a new_gui.o dialog.o menubar.o gui.o gui_funcs.o gui_local.o mouse.o net_dlg.o preset_dlg.o prop_picker.o sgVec3Slider.o trackball.o ranlib libGUI.a # verify that the wrong symbol names are still being generated david@Cynosure ~/FlightGear/src/GUI $ egrep -l '__Z10trTileSizeP6_TRctxlll|__Z11trImageSizeP6_TRctxll|__Z12trTileBufferP6_TRctxmmPv' gui_funcs.o gui_funcs.o # change to correct symbol names david@Cynosure ~/FlightGear/src/GUI $ perl -p -i -e 's+__Z10trTileSizeP6_TRctxlll+__Z10trTileSizeP6_TRctxiii+g;s+__Z11trImageSizeP6_TRctxll+__Z11trImageSizeP6_TRctxii+g;s+__Z12trTileBufferP6_TRctxmmPv+__Z12trTileBufferP6_TRctxjjPv+g;' gui_funcs.o # remake david@Cynosure ~/FlightGear/src/GUI $ rm libGUI.a david@Cynosure ~/FlightGear/src/GUI $ make rm -f libGUI.a ar cru libGUI.a new_gui.o dialog.o menubar.o gui.o gui_funcs.o gui_local.o mouse.o net_dlg.o preset_dlg.o prop_picker.o sgVec3Slider.o trackball.o ranlib libGUI.a # see if the final link likes the new library david@Cynosure ~/FlightGear/src/GUI $ cd ../Main david@Cynosure ~/FlightGear/src/Main $ make g++ -DPKGLIBDIR=\"/Users/david/lib/FlightGear\" -g -O2 -D_REENTRANT -L/Users/david/lib -L/usr/X11R6/lib -o fgfs main.o fg_commands.o fg_init.o fg_io.o fg_props.o fgfs.o globals.o logger.o options.o splash.o util.o viewer.o viewmgr.o location.o ../../src/Aircraft/libAircraft.a ../../src/ATC/libATC.a ../../src/Autopilot/libAutopilot.a ../../src/Cockpit/libCockpit.a ../../src/Cockpit/built_in/libBuilt_in.a ../../src/Controls/libControls.a ../../src/FDM/libFlight.a ../../src/FDM/Balloon/libBalloon.a ../../src/FDM/ExternalNet/libExternalNet.a ../../src/FDM/JSBSim/libJSBSim.a ../../src/FDM/YASim/libYASim.a ../../src/FDM/JSBSim/filtersjb/libfiltersjb.a ../../src/FDM/LaRCsim/libLaRCsim.a ../../src/FDM/UIUCModel/libUIUCModel.a ../../src/GUI/libGUI.a ../../src/Input/libInput.a ../../src/Instrumentation/libInstrumentation.a ../../src/Model/libModel.a ../../src/Navaids/libNavaids.a ../../src/Scenery/libScenery.a ../../src/Scripting/libScripting.a ../../src/Sound/libSound.a ../../src/Airports/libAirports.a ../../src/Network/libNetwork.a ../../src/NetworkOLK/libNetworkOLK.a ../../src/Objects/libObjects.a ../../src/Systems/libSystems.a ../../src/Time/libTime.a ../../src/Environment/libEnvironment.a -lsgroute -lsgsky -lsgephem -lsgtiming -lsgio -lsgscreen -lsgmath -lsgbucket -lsgdebug -lsgmagvar -lsgmisc -lsgxml -lsgserial -lsgthreads -lplibpu -lplibfnt -lplibjs -lplibnet -lplibssg -lplibsg -lplibul -lplibpsl -lmk4 -lz -lpthread -lm -framework GLUT -framework OpenGL -framework Carbon -lobjc -lplibsl -lplibsm -framework IOKit -framework CoreFoundation -lm ld: warning table of contents of library: ../../src/FDM/JSBSim/libJSBSim.a not sorted slower link editing will result (use the ranlib(1) -s option) ld: Undefined symbols: ssgVtxTable::ssgVtxTable[in-charge](unsigned, ssgVertexArray*, ssgNormalArray*, ssgTexCoordArray*, ssgColourArray*) make: *** [fgfs] Error 1 Woo-hoo! An ugly method, but I'll take it. Now for the last error... Regards, David K. Drum [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Undefined Symbols
On Tue, 18 Feb 2003 16:05:26 -0600 David Drum <[EMAIL PROTECTED]> wrote: > [FlightGear-Devel readers: this is another installment in my quest > to get FlightGear compiled under Mac OS X. I now have a good lead on > the final link failure, I think. If you have any knowledge of linker > naming conventions, symbol tables, and the like, I would appreciate > your comments. Thanks. P.S. Everything is being built from CVS.] > > Previous make's were failing, unable to find gen_leaf or > ssgVtxTable::ssgVtxTable. > > Sometime recently the call to gen_leaf was removed from the CVS code. > Instead, three other symbols are now not being found. Here's the final > make command along with output: > > david@Cynosure ~/FlightGear/src/main > $ make > g++ -DPKGLIBDIR=\"/Users/david/lib/FlightGear\" -g -O2 -D_REENTRANT > -L/Users/david/lib -L/usr/X11R6/lib -o fgfs main.o fg_commands.o fg_init.o > fg_io.o fg_props.o fgfs.o globals.o logger.o options.o splash.o util.o > viewer.o viewmgr.o location.o ../../src/Aircraft/libAircraft.a > ../../src/ATC/libATC.a ../../src/Autopilot/libAutopilot.a > ../../src/Cockpit/libCockpit.a ../../src/Cockpit/built_in/libBuilt_in.a > ../../src/Controls/libControls.a ../../src/FDM/libFlight.a > ../../src/FDM/Balloon/libBalloon.a > ../../src/FDM/ExternalNet/libExternalNet.a ../../src/FDM/JSBSim/libJSBSim.a > ../../src/FDM/YASim/libYASim.a ../../src/FDM/JSBSim/filtersjb/libfiltersjb.a > ../../src/FDM/LaRCsim/libLaRCsim.a ../../src/FDM/UIUCModel/libUIUCModel.a > ../../src/GUI/libGUI.a ../../src/Input/libInput.a > ../../src/Instrumentation/libInstrumentation.a ../../src/Model/libModel.a > ../../src/Navaids/libNavaids.a ../../src/Scenery/libScenery.a > ../../src/Scripting/libScripting.a ../../src/Sound/libSound.a > ../../src/Airports/libAirports.a ../../src/Network/libNetwork.a > ../../src/NetworkOLK/libNetworkOLK.a ../../src/Objects/libObjects.a > ../../src/Systems/libSystems.a ../../src/Time/libTime.a > ../../src/Environment/libEnvironment.a -lsgroute -lsgsky -lsgephem > -lsgtiming -lsgio -lsgscreen -lsgmath -lsgbucket -lsgdebug -lsgmagvar > -lsgmisc -lsgxml -lsgserial -lsgthreads -lplibpu -lplibfnt -lplibjs > -lplibnet -lplibssg -lplibsg -lplibul -lplibpsl -lmk4 -lz -lpthread -lm > -framework GLUT -framework OpenGL -framework Carbon -lobjc -lplibsl -lplibsm > -framework IOKit -framework CoreFoundation -lm ld: warning table of contents > of library: ../../src/FDM/JSBSim/libJSBSim.a not sorted slower link editing > will result (use the ranlib(1) -s option) ld: Undefined symbols: > trTileSize(_TRctx*, long, long, long) > trImageSize(_TRctx*, long, long) > trTileBuffer(_TRctx*, unsigned long, unsigned long, void*) > ssgVtxTable::ssgVtxTable[in-charge](unsigned, ssgVertexArray*, > ssgNormalArray*, ssgTexCoordArray*, ssgColourArray*) make: *** [fgfs] Error > 1 > > I have been using nm to poke around and believe I know what is going on, > even if I don't know how to fix it: > > david@Cynosure ~ > $ nm -o lib/libsgscreen.a FlightGear/src/GUI/gui_funcs.o | egrep > 'trTileSize|trImageSize|trTileBuffer' > lib/libsgscreen.a:tr.o:1564 S _Z10trTileSizeP6_TRctxiii.eh > lib/libsgscreen.a:tr.o:158c S _Z11trImageSizeP6_TRctxii.eh > lib/libsgscreen.a:tr.o:01d4 T __Z10trTileSizeP6_TRctxiii > FlightGear/src/GUI/gui_funcs.o: U __Z10trTileSizeP6_TRctxlll > lib/libsgscreen.a:tr.o:03c8 T __Z11trImageSizeP6_TRctxii > FlightGear/src/GUI/gui_funcs.o: U __Z11trImageSizeP6_TRctxll > lib/libsgscreen.a:tr.o:036c T __Z12trTileBufferP6_TRctxjjPv > FlightGear/src/GUI/gui_funcs.o: U __Z12trTileBufferP6_TRctxmmPv > > If you look closely at the "T" lines and the "U" lines, you will see that > the symbol names do not match! No wonder the final link fails. I guess > I need some way to get the compiler to generate the same symbol names. > >From simgear/screen/tr.h: extern void trTileSize(TRcontext *tr, GLint width, GLint height, GLint border); It looks like GLint is defined as an int when compiling SimGear but is long when compiling FlightGear. Bernie ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Undefined Symbols
Quoth Bernie Bright: > From simgear/screen/tr.h: > > extern void trTileSize(TRcontext *tr, GLint width, GLint height, GLint border); > > It looks like GLint is defined as an int when compiling SimGear but > is long when compiling FlightGear. Thank you for the interpretation. The gui_funcs.cxx define of GLint is coming from /System/Library/Frameworks/OpenGL.framework/Headers/gl.h (the Mac OS X distribution of OpenGL). The tr.cxx define of GLint is coming from /usr/X11R6/include/GL/gl.h (the Mac OS X distribution of X11). I'll have to mull this one over a bit. Regards, David K. Drum [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Undefined Symbols
Bernie Bright wrote: From simgear/screen/tr.h: extern void trTileSize(TRcontext *tr, GLint width, GLint height, GLint border); It looks like GLint is defined as an int when compiling SimGear but is long when compiling FlightGear. Ouch, what a horrible way to find thise kind of problems. I guess this asks for a compiler problem report. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
