[llvm-dev] Link error on Linux

Mehdi Amini via llvm-dev llvm-dev at lists.llvm.org
Fri Mar 25 00:47:40 PDT 2016 

Looking again at your link line, I think static library has to appear after their uses. So try to put the .o before the list of library.

-- 
Mehdi

> On Mar 25, 2016, at 12:41 AM, Russell Wallace <russell.wallace at gmail.com> wrote:
> 
> Yeah, seems to.
> 
> a at a-VirtualBox:~$ nm /home/a/build//lib/libLLVMSupport.a  | grep ZN4llvm4outsEv
>                  U _ZN4llvm4outsEv
>                  U _ZN4llvm4outsEv
> 0000000000000000 b _ZGVZN4llvm4outsEvE1S
> 0000000000000000 T _ZN4llvm4outsEv
> 0000000000000000 r _ZZN4llvm4outsEvE19__PRETTY_FUNCTION__
> 0000000000000000 b _ZZN4llvm4outsEvE1S
>                  U _ZN4llvm4outsEv
> 
> I can try building with RTTI, it'll just take a few hours to run the build.
> 
> On Fri, Mar 25, 2016 at 7:38 AM, Mehdi Amini <mehdi.amini at apple.com <mailto:mehdi.amini at apple.com>> wrote:
> Since the log tells you that llvm::outs() is not found, and since it is supposed to be found in libLLVMSupport.a, you can try:
> 
> $ nm /home/a/build//lib/libLLVMSupport.a  | grep ZN4llvm4outsEv
> ...
> 0000000000002070 T __ZN4llvm4outsEv
> ...
> 
> 
> The output should have the symbol defined.
> 
> -- 
> Mehdi
> 
> 
> 
>> On Mar 25, 2016, at 12:18 AM, Russell Wallace via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>> 
>> Tried that just now, same result.
>> 
>> On Fri, Mar 25, 2016 at 6:58 AM, Snehasish Kumar <kumar.snehasish at gmail.com <mailto:kumar.snehasish at gmail.com>> wrote:
>> Hi Russel,
>> 
>> Can you try compiling aklo.o using -fno-rtti prior to linking?
>> 
>> On Thu, Mar 24, 2016 at 11:44 PM, Russell Wallace via llvm-dev
>> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>> > I'm trying to link a program with LLVM on Linux. I've managed to take out
>> > the test files from 'llvm-config --libs' but now it's getting errors with
>> > missing symbols. The same program successfully links with the same version
>> > of LLVM (3.8) on Windows, so it's not a problem with the code per se, it's
>> > some kind of configuration issue. Any ideas?
>> >
>> > g++ -std=c++11 -I/home/a/llvm/include -I/home/a/build/include
>> > -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
>> > -D__STDC_LIMIT_MACROS -g -O2 -L/home/a/build//lib
>> > -lLLVMLTO -lLLVMObjCARCOpts -lLLVMSymbolize -lLLVMDebugInfoPDB
>> > -lLLVMDebugInfoDWARF -lLLVMXCoreDisassembler -lLLVMXCoreCodeGen
>> > -lLLVMXCoreDesc -lLLVMXCoreInfo -lLLVMXCoreAsmPrinter
>> > -lLLVMSystemZDisassembler -lLLVMSystemZCodeGen -lLLVMSystemZAsmParser
>> > -lLLVMSystemZDesc -lLLVMSystemZInfo -lLLVMSystemZAsmPrinter
>> > -lLLVMSparcDisassembler -lLLVMSparcCodeGen -lLLVMSparcAsmParser
>> > -lLLVMSparcDesc -lLLVMSparcInfo -lLLVMSparcAsmPrinter
>> > -lLLVMPowerPCDisassembler -lLLVMPowerPCCodeGen -lLLVMPowerPCAsmParser
>> > -lLLVMPowerPCDesc -lLLVMPowerPCInfo -lLLVMPowerPCAsmPrinter
>> > -lLLVMNVPTXCodeGen -lLLVMNVPTXDesc -lLLVMNVPTXInfo -lLLVMNVPTXAsmPrinter
>> > -lLLVMMSP430CodeGen -lLLVMMSP430Desc -lLLVMMSP430Info -lLLVMMSP430AsmPrinter
>> > -lLLVMMipsDisassembler -lLLVMMipsCodeGen -lLLVMMipsAsmParser -lLLVMMipsDesc
>> > -lLLVMMipsInfo -lLLVMMipsAsmPrinter -lLLVMHexagonDisassembler
>> > -lLLVMHexagonCodeGen -lLLVMHexagonAsmParser -lLLVMHexagonDesc
>> > -lLLVMHexagonInfo -lLLVMCppBackendCodeGen -lLLVMCppBackendInfo
>> > -lLLVMBPFCodeGen -lLLVMBPFDesc -lLLVMBPFInfo -lLLVMBPFAsmPrinter
>> > -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc
>> > -lLLVMARMInfo -lLLVMARMAsmPrinter -lLLVMAMDGPUCodeGen -lLLVMAMDGPUAsmParser
>> > -lLLVMAMDGPUDesc -lLLVMAMDGPUUtils -lLLVMAMDGPUInfo -lLLVMAMDGPUAsmPrinter
>> > -lLLVMAArch64Disassembler -lLLVMAArch64CodeGen -lLLVMAArch64AsmParser
>> > -lLLVMAArch64Desc -lLLVMAArch64Info -lLLVMAArch64AsmPrinter
>> > -lLLVMAArch64Utils -lLLVMMIRParser -lLLVMLibDriver -lLLVMOption
>> > -lLLVMTableGen -lLLVMLineEditor -lLLVMX86Disassembler -lLLVMX86AsmParser
>> > -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc
>> > -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils
>> > -lLLVMMCJIT -lLLVMPasses -lLLVMipo -lLLVMVectorize -lLLVMLinker
>> > -lLLVMIRReader -lLLVMAsmParser -lLLVMDebugInfoCodeView -lLLVMInterpreter
>> > -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMInstrumentation
>> > -lLLVMProfileData -lLLVMBitWriter -lLLVMOrcJIT -lLLVMTransformUtils
>> > -lLLVMExecutionEngine -lLLVMTarget -lLLVMAnalysis -lLLVMRuntimeDyld
>> > -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMMC -lLLVMCore
>> > -lLLVMSupport                        -ldl -lpthread -ltinfo  -o aklo
>> > aklo-aklo.o
>> > aklo-aklo.o: In function `operator()':
>> > /mnt/a2/aklo.cpp:442: undefined reference to `llvm::outs()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(llvm::StringRef)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `operator()':
>> > /mnt/a2/aklo.cpp:443: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:447: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:450: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:452: undefined reference to `llvm::outs()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char const*)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(llvm::StringRef)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `operator()':
>> > /mnt/a2/aklo.cpp:430: undefined reference to `llvm::errs()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:141: undefined reference to
>> > `llvm::raw_ostream::write(unsigned char)'
>> > aklo-aklo.o: In function `error(std::string)':
>> > /mnt/a2/aklo.cpp:172: undefined reference to
>> > `llvm::SourceMgr::PrintMessage(llvm::SMLoc, llvm::SourceMgr::DiagKind,
>> > llvm::Twine const&, llvm::ArrayRef<llvm::SMRange>,
>> > llvm::ArrayRef<llvm::SMFixIt>, bool) const'
>> > aklo-aklo.o: In function `print(long)':
>> > /mnt/a2/aklo.cpp:388: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:393: undefined reference to `llvm::outs()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:141: undefined reference to
>> > `llvm::raw_ostream::write(unsigned char)'
>> > aklo-aklo.o: In function `print(long)':
>> > /mnt/a2/aklo.cpp:395: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:401: undefined reference to `llvm::outs()'
>> > /mnt/a2/aklo.cpp:398: undefined reference to `llvm::outs()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:141: undefined reference to
>> > `llvm::raw_ostream::write(unsigned char)'
>> > aklo-aklo.o: In function `llvm::StringMap<long,
>> > llvm::MallocAllocator>::find(llvm::StringRef) const':
>> > /home/a/llvm/include/llvm/ADT/StringMap.h:284: undefined reference to
>> > `llvm::StringMapImpl::FindKey(llvm::StringRef) const'
>> > aklo-aklo.o: In function `llvm::StringMap<long,
>> > llvm::MallocAllocator>::insert(std::pair<llvm::StringRef, long>)':
>> > /home/a/llvm/include/llvm/ADT/StringMap.h:331: undefined reference to
>> > `llvm::StringMapImpl::LookupBucketFor(llvm::StringRef)'
>> > /home/a/llvm/include/llvm/ADT/StringMap.h:344: undefined reference to
>> > `llvm::StringMapImpl::RehashTable(unsigned int)'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char const*)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(std::string
>> > const&)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:184: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `print(long)':
>> > /mnt/a2/aklo.cpp:398: undefined reference to
>> > `llvm::raw_ostream::operator<<(long)'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:141: undefined reference to
>> > `llvm::raw_ostream::write(unsigned char)'
>> > aklo-aklo.o: In function `llvm::cl::list<std::string, bool,
>> > llvm::cl::parser<std::string> >::getOptionWidth() const':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:1387: undefined reference to
>> > `llvm::cl::basic_parser_impl::getOptionWidth(llvm::cl::Option const&) const'
>> > aklo-aklo.o: In function `llvm::cl::list<std::string, bool,
>> > llvm::cl::parser<std::string> >::printOptionInfo(unsigned long) const':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:1390: undefined reference to
>> > `llvm::cl::basic_parser_impl::printOptionInfo(llvm::cl::Option const&,
>> > unsigned long) const'
>> > aklo-aklo.o: In function `~basic_parser':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:763: undefined reference to
>> > `vtable for llvm::cl::basic_parser<std::string>'
>> > aklo-aklo.o: In function `~Option':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:290: undefined reference to
>> > `vtable for llvm::cl::Option'
>> > aklo-aklo.o: In function `~basic_parser':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:763: undefined reference to
>> > `vtable for llvm::cl::basic_parser<std::string>'
>> > aklo-aklo.o: In function `~Option':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:290: undefined reference to
>> > `vtable for llvm::cl::Option'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(llvm::StringRef)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:166: undefined reference to
>> > `llvm::raw_ostream::write(char const*, unsigned long)'
>> > aklo-aklo.o: In function `main':
>> > /mnt/a2/aklo.cpp:434: undefined reference to
>> > `llvm::sys::PrintStackTraceOnErrorSignal(bool)'
>> > aklo-aklo.o: In function `PrettyStackTraceProgram':
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:63: undefined reference
>> > to `llvm::PrettyStackTraceEntry::PrettyStackTraceEntry()'
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:63: undefined reference
>> > to `vtable for llvm::PrettyStackTraceProgram'
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:64: undefined reference
>> > to `llvm::EnablePrettyStackTrace()'
>> > aklo-aklo.o: In function `main':
>> > /mnt/a2/aklo.cpp:456: undefined reference to
>> > `llvm::cl::AddExtraVersionPrinter(void (*)())'
>> > /mnt/a2/aklo.cpp:457: undefined reference to
>> > `llvm::cl::ParseCommandLineOptions(int, char const* const*, char const*)'
>> > /mnt/a2/aklo.cpp:460: undefined reference to
>> > `llvm::MemoryBuffer::getFileOrSTDIN(llvm::Twine const&, long, bool)'
>> > /mnt/a2/aklo.cpp:469: undefined reference to `llvm::outs()'
>> > aklo-aklo.o: In function `~PrettyStackTraceProgram':
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:58: undefined reference
>> > to `vtable for llvm::PrettyStackTraceProgram'
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:58: undefined reference
>> > to `llvm::PrettyStackTraceEntry::~PrettyStackTraceEntry()'
>> > aklo-aklo.o: In function `llvm::raw_ostream::operator<<(char)':
>> > /home/a/llvm/include/llvm/Support/raw_ostream.h:141: undefined reference to
>> > `llvm::raw_ostream::write(unsigned char)'
>> > aklo-aklo.o: In function `main':
>> > /mnt/a2/aklo.cpp:463: undefined reference to `llvm::errs()'
>> > /mnt/a2/aklo.cpp:463: undefined reference to `llvm::SMDiagnostic::print(char
>> > const*, llvm::raw_ostream&, bool, bool) const'
>> > aklo-aklo.o: In function `PrettyStackTraceProgram':
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:63: undefined reference
>> > to `llvm::PrettyStackTraceEntry::~PrettyStackTraceEntry()'
>> > aklo-aklo.o: In function `~PrettyStackTraceProgram':
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:58: undefined reference
>> > to `vtable for llvm::PrettyStackTraceProgram'
>> > /home/a/llvm/include/llvm/Support/PrettyStackTrace.h:58: undefined reference
>> > to `llvm::PrettyStackTraceEntry::~PrettyStackTraceEntry()'
>> > aklo-aklo.o: In function `__static_initialization_and_destruction_0':
>> > /mnt/a2/aklo.cpp:164: undefined reference to `llvm::SourceMgr::~SourceMgr()'
>> > aklo-aklo.o: In function `Option':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:253: undefined reference to
>> > `vtable for llvm::cl::Option'
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:253: undefined reference to
>> > `llvm::cl::GeneralCategory'
>> > aklo-aklo.o: In function `parser':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:938: undefined reference to
>> > `vtable for llvm::cl::parser<std::string>'
>> > aklo-aklo.o: In function `llvm::cl::list<std::string, bool,
>> > llvm::cl::parser<std::string> >::done()':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:1398: undefined reference to
>> > `llvm::cl::Option::addArgument()'
>> > aklo-aklo.o: In function `~basic_parser':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:763: undefined reference to
>> > `vtable for llvm::cl::basic_parser<std::string>'
>> > aklo-aklo.o: In function `~Option':
>> > /home/a/llvm/include/llvm/Support/CommandLine.h:290: undefined reference to
>> > `vtable for llvm::cl::Option'
>> > aklo-aklo.o:(.rodata._ZTIN4llvm2cl4listISsbNS0_6parserISsEEEE[_ZTIN4llvm2cl4listISsbNS0_6parserISsEEEE]+0x18):
>> > undefined reference to `typeinfo for llvm::cl::Option'
>> > aklo-aklo.o:(.rodata._ZTVN4llvm2cl4listISsbNS0_6parserISsEEEE[_ZTVN4llvm2cl4listISsbNS0_6parserISsEEEE]+0x20):
>> > undefined reference to `llvm::cl::Option::anchor()'
>> > aklo-aklo.o:(.rodata._ZTVN4llvm2cl4listISsbNS0_6parserISsEEEE[_ZTVN4llvm2cl4listISsbNS0_6parserISsEEEE]+0x48):
>> > undefined reference to `llvm::cl::Option::addOccurrence(unsigned int,
>> > llvm::StringRef, llvm::StringRef, bool)'
>> > collect2: error: ld returned 1 exit status
>> >
>> >
>> > _______________________________________________
>> > LLVM Developers mailing list
>> > llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev <http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev>
>> >
>> 
>> 
>> 
>> --
>> Snehasish Kumar
>> School of Computing Science
>> Simon Fraser University
>> 
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev <http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev>
> 
> 

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