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Re: [Mingw-users] Undefined references when linking with mingw32-gcc
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From: Sultan S. <jav...@gm...> - 2011-12-18 07:06:12
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By the way, is this a known issue with MinGW gcc? Seems odd that the order of arguments to the compiler should cause a problem like this. (Forgive my naivete if this is a silly question - I'm a java developer, so I don't get to play in C/C++ that often.) -S. On Sun, Dec 18, 2011 at 1:57 AM, Sultan Saini <jav...@gm...> wrote: > @LRN, yes, I do have extern "C" wrappers in my headers. Thank you *very > much* for your suggestion to switch around the arguments in the call to the > linker - that seems to have cleaned up most of the problems (you have no > idea how relieved I am at the moment - thank you). What remains appears to > be straightforward missing __declspec macros (they must have been getting > lost in the noise). > > @Emanuel, the only reason I didn't want to do the port is time > constraints. However, even as I write this, I had pretty decided that that > would have been my next step. > > Thanks for the speedy responses. You have made me a very happy camper > today :-) > > -S. > > > On Sun, Dec 18, 2011 at 1:19 AM, Emanuel Falkenauer < > E.F...@op...> wrote: > >> Hi,**** >> >> ** ** >> >> I'm not sure this could be of any help, but I have a pretty extensive >> palette of JNI DLLs… and thy are ALL written in C++ and compiled with >> mingw32-g++ (and even its 64bit version, i.e. x86_64-w64-mingw32-g++)! The >> headers generated by Java are fully compatible with C++ (no idea why you >> would stick to C).**** >> >> ** ** >> >> Good luck,**** >> >> ** ** >> >> Emanuel**** >> >> ** ** >> >> *De :* Sultan Saini [mailto:jav...@gm...] >> *Envoyé :* Sunday, 18 December, 2011 06:19 >> *À :* MinGW Users List >> *Objet :* Re: [Mingw-users] Undefined references when linking with >> mingw32-gcc**** >> >> ** ** >> >> Yes, I contemplated that. The thing is that I'd really rather not rewrite >> one of the jni source files in C++. It's currently using the C >> implementation of the JNI api. It feels like I'm missing something obvious >> and important that will fix this problem for me. I'm hoping someone is able >> to point it out.**** >> >> ** ** >> >> -Sultan.**** >> >> On Sat, Dec 17, 2011 at 11:51 PM, xunxun <xun...@gm...> wrote:*** >> * >> >> Using mingw32-g++ please**** >> >> >> On Sun, Dec 18, 2011 at 12:42 PM, Sultan Saini <jav...@gm...> >> wrote: >> > Hello, >> > >> > I'm trying to build a small jni dll with mingw gcc and am having trouble >> > during the linking step of the build. >> > >> > The linker command is thus: >> > >> > /c/MinGW/bin/mingw32-gcc.exe -w -fPIC -lstdc++ -shared -mwindows >> > -LC:/MinGW/lib/glut -LC:/MinGW/lib/GLU -LC:/MinGW/lib/GL -lm >> > -LC:/MinGW/lib/glib-2.0 -lopengl32 -lglu32 -lglut32 -lglib-2.0 >> build/gl2ps.o >> > build/gl2psjni.o build/mathml2ps.o -o build/gl2psjni.dll >> > >> > Here is a list of undefined symbols from the individual object files: >> > $ nm -C -u build/gl2ps.o >> > U _imp___iob >> > U cos >> > U ctime >> > U destroyEPSOutput >> > U fflush >> > U fprintf >> > U fputc >> > U free >> > U fwrite >> > U getEPS >> > U getFontDefinitionsMemSize >> > U glBegin@4 >> > U glBitmap@28 >> > U glEnd@0 >> > U glFeedbackBuffer@12 >> > U glGetBooleanv@8 >> > U glGetFloatv@8 >> > U glGetIntegerv@8 >> > U glIsEnabled@4 >> > U glPassThrough@4 >> > U glRenderMode@4 >> > U glVertex3f@12 >> > U gmtime >> > U log10 >> > U malloc >> > U popFontDefinitions >> > U pow >> > U qsort >> > U realloc >> > U sin >> > U sprintf >> > U sqrt >> > U strcpy >> > U strncpy >> > U time >> > U vfprintf >> > $ nm -C -u build/gl2psjni.o >> > U fopen >> > U free >> > U gl2psBeginPage >> > U gl2psBeginViewport >> > U gl2psBlendFunc >> > U gl2psDisable >> > U gl2psDrawPixels >> > U gl2psEnable >> > U gl2psEndPage >> > U gl2psEndViewport >> > U gl2psGetFileExtension >> > U gl2psGetFormat >> > U gl2psGetFormatDescription >> > U gl2psGetOptions >> > U gl2psLineWidth >> > U gl2psMathML >> > U gl2psMathMLFooter >> > U gl2psMathMLHeader >> > U gl2psPointSize >> > U gl2psSetOptions >> > U gl2psSpecial >> > U gl2psText >> > U gl2psTextOpt >> > U malloc >> > U printf >> > U puts >> > $ nm -C -u build/mathml2ps.o >> > U _Unwind_Resume >> > U std::string::find_last_not_of(char const*, unsigned int) >> const >> > U std::string::data() const >> > U std::string::find(char const*, unsigned int) const >> > U std::string::find(std::string const&, unsigned int) const >> > U std::string::size() const >> > U std::string::c_str() const >> > U std::string::length() const >> > U std::string::substr(unsigned int, unsigned int) const >> > U std::string::compare(char const*) const >> > U std::basic_ostringstream<char, std::char_traits<char>, >> > std::allocator<char> >::str() const >> > U std::allocator<char>::allocator() >> > U std::allocator<char>::~allocator() >> > U std::string::erase(unsigned int, unsigned int) >> > U std::string::append(std::string const&) >> > U std::basic_string<char, std::char_traits<char>, >> > std::allocator<char> >::basic_string(char const*, std::allocator<char> >> > const&) >> > U std::basic_string<char, std::char_traits<char>, >> > std::allocator<char> >::basic_string(std::string const&) >> > U std::basic_string<char, std::char_traits<char>, >> > std::allocator<char> >::~basic_string() >> > U std::string::operator=(std::string const&) >> > U std::basic_ostringstream<char, std::char_traits<char>, >> > std::allocator<char> >::basic_ostringstream(std::_Ios_Openmode) >> > U std::basic_ostringstream<char, std::char_traits<char>, >> > std::allocator<char> >::~basic_ostringstream() >> > U std::ios_base::Init::Init() >> > U std::ios_base::Init::~Init() >> > U std::__throw_bad_alloc() >> > U std::__throw_length_error(char const*) >> > U operator delete(void*) >> > U operator new(unsigned int) >> > U __cxa_begin_catch >> > U __cxa_end_catch >> > U __cxa_rethrow >> > U __gxx_personality_v0 >> > U _assert >> > U _imp___ZN10MathViewNS10fileExistsEPKc >> > U >> > >> _imp___ZN10PS_Backend6createERK8SmartPtrI14AbstractLoggerERKS0_I13ConfigurationE >> > U _imp___ZN12FontDataBase6createEv >> > U _imp___ZN13Configuration16getBinaryVersionEv >> > U _imp___ZN13Configuration21getConfigurationPathsEv >> > U _imp___ZN13ConfigurationC1Ev >> > U _imp___ZN14AbstractLoggerC2Ev >> > U >> > >> _imp___ZN15T1_FontDataBase6createERK8SmartPtrI14AbstractLoggerERKS0_I13ConfigurationEb >> > U _imp___ZN16libxml2_MathView10loadBufferEPKc >> > U >> > >> _imp___ZN16libxml2_MathView17loadConfigurationERK8SmartPtrI14AbstractLoggerERKS0_I13ConfigurationERKSs >> > U >> > >> _imp___ZN16libxml2_MathView22loadOperatorDictionaryERK8SmartPtrI14AbstractLoggerERKS0_I24MathMLOperatorDictionaryERKSs >> > U >> _imp___ZN16libxml2_MathView6createERK8SmartPtrI14AbstractLoggerE >> > U >> _imp___ZN17FormattingContextC1ERK8SmartPtrI17MathGraphicDeviceE >> > U _imp___ZN17FormattingContextD1Ev >> > U >> > >> _imp___ZN22MathMLNamespaceContextC1ERK8SmartPtrI4ViewERKS0_I17MathGraphicDeviceE >> > U _imp___ZN24MathMLOperatorDictionaryC1Ev >> > U _imp___ZN25PS_StreamRenderingContext11documentEndEv >> > U >> > >> _imp___ZN25PS_StreamRenderingContext13documentStartERK5fixedIiLi10EES3_RK11BoundingBoxPKc >> > U >> > >> _imp___ZN25PS_StreamRenderingContextC1ERK8SmartPtrI14AbstractLoggerERSoS0_I12FontDataBaseE >> > U _imp___ZN25PS_StreamRenderingContextD1Ev >> > U _imp___ZN4View16resetRootElementEv >> > U _imp___ZN4View17setAvailableWidthERK5fixedIiLi10EE >> > U _imp___ZN4View18setDefaultFontSizeEj >> > U >> > >> _imp___ZN4View21setOperatorDictionaryERK8SmartPtrI24MathMLOperatorDictionaryE >> > U >> > >> _imp___ZN4View25setMathMLNamespaceContextERK8SmartPtrI22MathMLNamespaceContextE >> > U _imp___ZN4View27getDefaultConfigurationPathEv >> > U _imp___ZN4View32getDefaultOperatorDictionaryPathEv >> > U _imp___ZNK13Configuration13getStringListERKSs >> > U >> > _imp___ZNK13Configuration6getIntERK8SmartPtrI14AbstractLoggerERKSsi >> > U >> > _imp___ZNK13Configuration9getStringERK8SmartPtrI14AbstractLoggerERKSsS6_ >> > U _imp___ZNK14AbstractLogger11setLogLevelE10LogLevelId >> > U _imp___ZNK14AbstractLogger3outE10LogLevelIdPKcz >> > U _imp___ZNK4View14getBoundingBoxEv >> > U _imp___ZNK4View6renderER16RenderingContextRK5fixedIiLi10EES5_ >> > U _imp___ZTV6Logger >> > U atexit >> > U free >> > U malloc >> > U strcat >> > U strcpy >> > U strdup >> > U strncpy >> > U strtof >> > U strtok >> > >> > What is very confusing is all the undefined references from the stdc++ >> > library and standard C functions (malloc, strcat etc). >> > >> > I must be missing something, because there are also undefined references >> > even between these objects. For instance, gl2psjni.o has undefined >> > references that *should* be there from gl2ps.o (gl2psBeginPage, >> > gl2psBeginViewport etc). >> > >> > Any insights would be greatly appreciated, and many thanks in advance >> for >> > taking the time to read this. >> > >> > -Sultan. >> > >> >> >> >> **** >> >> -- >> Best Regards, >> xunxun >> >> >> ------------------------------------------------------------------------------ >> Learn Windows Azure Live! Tuesday, Dec 13, 2011 >> Microsoft is holding a special Learn Windows Azure training event for >> developers. It will provide a great way to learn Windows Azure and what it >> provides. You can attend the event by watching it streamed LIVE online. >> Learn more at http://p.sf.net/sfu/ms-windowsazure >> _______________________________________________ >> MinGW-users mailing list >> Min...@li... >> >> This list observes the Etiquette found at >> http://www.mingw.org/Mailing_Lists. >> We ask that you be polite and do the same. Disregard for the list >> etiquette may cause your account to be moderated. >> >> _______________________________________________ >> You may change your MinGW Account Options or unsubscribe at: >> https://lists.sourceforge.net/lists/listinfo/mingw-users >> Also: mailto:min...@li... >> ?subject=unsubscribe**** >> >> >> >> **** >> >> ** ** >> >> -- >> -sultan**** >> >> >> ------------------------------------------------------------------------------ >> Learn Windows Azure Live! Tuesday, Dec 13, 2011 >> Microsoft is holding a special Learn Windows Azure training event for >> developers. It will provide a great way to learn Windows Azure and what it >> provides. You can attend the event by watching it streamed LIVE online. >> Learn more at http://p.sf.net/sfu/ms-windowsazure >> _______________________________________________ >> MinGW-users mailing list >> Min...@li... >> >> This list observes the Etiquette found at >> http://www.mingw.org/Mailing_Lists. >> We ask that you be polite and do the same. Disregard for the list >> etiquette may cause your account to be moderated. >> >> _______________________________________________ >> You may change your MinGW Account Options or unsubscribe at: >> https://lists.sourceforge.net/lists/listinfo/mingw-users >> Also: mailto:min...@li... >> ?subject=unsubscribe >> > > > > -- > -sultan > -- -sultan |