[llvm-dev] darwin bootstrap failure

Aaron Ballman via llvm-dev llvm-dev at lists.llvm.org
Sun Oct 15 08:06:47 PDT 2017 

On Sun, Oct 15, 2017 at 10:58 AM, Don Hinton <hintonda at gmail.com> wrote:
> Thanks Aaron.
>
> I don't have a Windows system, and haven't seen any buildbot failures, so I
> it's difficult to come up with a patch for something I can't reproduce
> locally or see any actual failures.  Could you send me the commands you used
> that uncovered the failure?

This was from building Clang + LLVM on Windows 10 with MSVC 2017 x64
Debug. My cmake command to generate the VS solution is pretty
uninteresting: cmake -G "Visual Studio 15 Win64" ..\llvm

I fixed a few of the link errors that Jack pointed out before
stumbling on the problem in AsmMatcherEmitter::run(). I wasn't
comfortable attempting to work around it there because the
DEBUG_WITH_TYPE macro was conflicting with trying to guard calls to
MatchableInfo::dump() with LLVM_ENABLE_DUMP.

I think this is another instance of "TableGen wasn't done along with
the rest of llvm" -- nothing about it should be Visual Studio- or
Windows-specific.

~Aaron

>
> thanks again...
> don
>
> On Sun, Oct 15, 2017 at 7:35 AM, Aaron Ballman <aaron at aaronballman.com>
> wrote:
>>
>> On Sat, Oct 14, 2017 at 11:25 AM, Don Hinton via llvm-dev
>> <llvm-dev at lists.llvm.org> wrote:
>> > Hi Jack:
>> >
>> > Yes, I was just looking at that.  Seems like TableGen wasn't done along
>> > with
>> > the rest of llvm.  I'll work up a complete patch shortly.
>>
>> This also broke the build for MSVC when doing a debug build (though no
>> builder seems to be picking up the failure!). After working around a
>> handful of link errors, I came to one that's going to require more
>> understanding of LLVM's tablegen than I have.
>>
>> Error LNK2019 unresolved external symbol "public: void __cdecl
>> `anonymous namespace'::MatchableInfo::dump(void)const "
>> (?dump at MatchableInfo@?A0xf4f1c304@@QEBAXXZ) referenced in function
>> "public: void __cdecl `anonymous
>> namespace'::AsmMatcherEmitter::run(class llvm::raw_ostream &)"
>> (?run at AsmMatcherEmitter@?A0xf4f1c304@@QEAAXAEAVraw_ostream at llvm@@@Z)
>> llvm-tblgen D:\llvm\2017\utils\TableGen\AsmMatcherEmitter.obj 1
>>
>> Since this has been broken for over a day and the fixes are
>> nontrivial, I've reverted your commit (r315590) in r315854. Hopefully
>> this doesn't cause you too many problems!
>>
>> ~Aaron
>>
>> >
>> > Btw, I'm curious how this happened.  Do you have a stale CMakeCache.txt
>> > by
>> > any chance?  You might check the value for LLVM_ENABLE_DUMP and see if
>> > it's
>> > consistent.
>> >
>> > Again, I'll gen up a complete patch shortly -- sorry for delay, had to
>> > walk
>> > my dog first...
>> >
>> > thanks...
>> > don
>> >
>> > On Sat, Oct 14, 2017 at 8:06 AM, Jack Howarth
>> > <howarth.mailing.lists at gmail.com> wrote:
>> >>
>> >>
>> >>
>> >> On Sat, Oct 14, 2017 at 10:25 AM, Don Hinton <hintonda at gmail.com>
>> >> wrote:
>> >>>
>> >>> Hi Jack:
>> >>>
>> >>> Looks like I missed this one in my recent change.
>> >>>
>> >>> Please let me know if this solves your problem:
>> >>>
>> >>> $ git diff
>> >>> diff --git a/utils/TableGen/InfoByHwMode.cpp
>> >>> b/utils/TableGen/InfoByHwMode.cpp
>> >>> index 7e1e1864356..8d3636432aa 100644
>> >>> --- a/utils/TableGen/InfoByHwMode.cpp
>> >>> +++ b/utils/TableGen/InfoByHwMode.cpp
>> >>> @@ -98,14 +98,16 @@ void ValueTypeByHwMode::writeToStream(raw_ostream
>> >>> &OS) const {
>> >>>    OS << '}';
>> >>>  }
>> >>>
>> >>> +#ifdef LLVM_ENABLE_DUMP
>> >>>  LLVM_DUMP_METHOD
>> >>>  void ValueTypeByHwMode::dump() const {
>> >>>    dbgs() << *this << '\n';
>> >>>  }
>> >>> +#endif
>> >>>
>> >>>  ValueTypeByHwMode llvm::getValueTypeByHwMode(Record *Rec,
>> >>>                                               const CodeGenHwModes
>> >>> &CGH)
>> >>> {
>> >>> -#ifndef NDEBUG
>> >>> +#ifdef LLVM_ENABLE_DUMP
>> >>>    if (!Rec->isSubClassOf("ValueType"))
>> >>>      Rec->dump();
>> >>>  #endif
>> >>>
>> >>>
>> >>> thanks...
>> >>> don
>> >>>
>> >>
>> >> The patch seems to be incomplete as it moves the failure to...
>> >>
>> >> [  6%] Linking CXX executable ../../bin/llvm-tblgen
>> >> cd /sw/src/fink.build/llvm60-6.0.0-1/build/stage1/utils/TableGen &&
>> >> /sw/bin/cmake -E cmake_link_script CMakeFiles/llvm-tblgen.dir/link.txt
>> >> --verbose=1
>> >> /sw/src/fink.build/llvm60-6.0.0-1/opt-bin/ccclang++  -fno-common -fPIC
>> >> -fvisibility-inlines-hidden -Werror=date-time
>> >> -Werror=unguarded-availability-new -std=c++11 -Wall -W
>> >> -Wno-unused-parameter
>> >> -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic
>> >> -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor
>> >> -Wdelete-non-virtual-dtor -Wstring-conversion -O3
>> >> -Wl,-search_paths_first
>> >> -Wl,-headerpad_max_install_names  -L/sw/lib  -Wl,-dead_strip
>> >> CMakeFiles/obj.llvm-tblgen.dir/AsmMatcherEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/AsmWriterEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/AsmWriterInst.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/Attributes.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CallingConvEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeEmitterGen.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenDAGPatterns.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenHwModes.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenInstruction.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenMapTable.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenRegisters.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenSchedule.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CodeGenTarget.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DAGISelEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherGen.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherOpt.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcher.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DFAPacketizerEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/DisassemblerEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/FastISelEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/FixedLenDecoderEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/GlobalISelEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/InfoByHwMode.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/InstrInfoEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/IntrinsicEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/OptParserEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/PseudoLoweringEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/RegisterBankEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/RegisterInfoEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/SearchableTableEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/SubtargetEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/SubtargetFeatureInfo.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/TableGen.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/Types.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/X86DisassemblerTables.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/X86EVEX2VEXTablesEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/X86FoldTablesEmitter.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/X86ModRMFilters.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/X86RecognizableInstr.cpp.o
>> >> CMakeFiles/obj.llvm-tblgen.dir/CTagsEmitter.cpp.o  -o
>> >> ../../bin/llvm-tblgen
>> >> -Wl,-rpath, at loader_path/../lib ../../lib/libLLVMSupport.a
>> >> ../../lib/libLLVMTableGen.a ../../lib/libLLVMSupport.a -lcurses -lz -lm
>> >> ../../lib/libLLVMDemangle.a
>> >> Undefined symbols for architecture x86_64:
>> >>   "llvm::SubtargetFeatureInfo::dump() const", referenced from:
>> >>       (anonymous namespace)::AsmMatcherInfo::buildInfo() in
>> >> AsmMatcherEmitter.cpp.o
>> >>   "(anonymous namespace)::MatchableInfo::dump() const", referenced
>> >> from:
>> >>       (anonymous namespace)::AsmMatcherEmitter::run(llvm::raw_ostream&)
>> >> in
>> >> AsmMatcherEmitter.cpp.o
>> >> ld: symbol(s) not found for architecture x86_64
>> >> clang: error: linker command failed with exit code 1 (use -v to see
>> >> invocation)
>> >> make[2]: *** [bin/llvm-tblgen] Error 1
>> >> make[1]: *** [utils/TableGen/CMakeFiles/llvm-tblgen.dir/all] Error 2
>> >> make: *** [all] Error 2
>> >>
>> >>         Jack
>> >>
>> >>>
>> >>>
>> >>> On Sat, Oct 14, 2017 at 6:06 AM, Jack Howarth via llvm-dev
>> >>> <llvm-dev at lists.llvm.org> wrote:
>> >>>>
>> >>>> Is anyone else seeing this bootstrap failure on current svn trunk?
>> >>>>
>> >>>> [  6%] Linking CXX executable ../../bin/llvm-tblgen
>> >>>> cd /sw/src/fink.build/llvm60-6.0.0-1/build/stage1/utils/TableGen &&
>> >>>> /sw/bin/cmake -E cmake_link_script
>> >>>> CMakeFiles/llvm-tblgen.dir/link.txt
>> >>>> --verbose=1
>> >>>> /sw/src/fink.build/llvm60-6.0.0-1/opt-bin/ccclang++  -fno-common
>> >>>> -fPIC
>> >>>> -fvisibility-inlines-hidden -Werror=date-time
>> >>>> -Werror=unguarded-availability-new -std=c++11 -Wall -W
>> >>>> -Wno-unused-parameter
>> >>>> -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic
>> >>>> -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor
>> >>>> -Wdelete-non-virtual-dtor -Wstring-conversion -O3
>> >>>> -Wl,-search_paths_first
>> >>>> -Wl,-headerpad_max_install_names  -L/sw/lib  -Wl,-dead_strip
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/AsmMatcherEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/AsmWriterEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/AsmWriterInst.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/Attributes.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CallingConvEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeEmitterGen.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenDAGPatterns.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenHwModes.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenInstruction.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenMapTable.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenRegisters.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenSchedule.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CodeGenTarget.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DAGISelEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherGen.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcherOpt.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DAGISelMatcher.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DFAPacketizerEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/DisassemblerEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/FastISelEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/FixedLenDecoderEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/GlobalISelEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/InfoByHwMode.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/InstrInfoEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/IntrinsicEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/OptParserEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/PseudoLoweringEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/RegisterBankEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/RegisterInfoEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/SearchableTableEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/SubtargetEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/SubtargetFeatureInfo.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/TableGen.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/Types.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/X86DisassemblerTables.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/X86EVEX2VEXTablesEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/X86FoldTablesEmitter.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/X86ModRMFilters.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/X86RecognizableInstr.cpp.o
>> >>>> CMakeFiles/obj.llvm-tblgen.dir/CTagsEmitter.cpp.o  -o
>> >>>> ../../bin/llvm-tblgen
>> >>>> -Wl,-rpath, at loader_path/../lib ../../lib/libLLVMSupport.a
>> >>>> ../../lib/libLLVMTableGen.a ../../lib/libLLVMSupport.a -lcurses -lz
>> >>>> -lm
>> >>>> ../../lib/libLLVMDemangle.a
>> >>>> Undefined symbols for architecture x86_64:
>> >>>>   "llvm::Record::dump() const", referenced from:
>> >>>>       llvm::getValueTypeByHwMode(llvm::Record*, llvm::CodeGenHwModes
>> >>>> const&) in InfoByHwMode.cpp.o
>> >>>>   "llvm::SubtargetFeatureInfo::dump() const", referenced from:
>> >>>>       (anonymous namespace)::AsmMatcherInfo::buildInfo() in
>> >>>> AsmMatcherEmitter.cpp.o
>> >>>>   "(anonymous namespace)::MatchableInfo::dump() const", referenced
>> >>>> from:
>> >>>>       (anonymous
>> >>>> namespace)::AsmMatcherEmitter::run(llvm::raw_ostream&)
>> >>>> in AsmMatcherEmitter.cpp.o
>> >>>> ld: symbol(s) not found for architecture x86_64
>> >>>> clang: error: linker command failed with exit code 1 (use -v to see
>> >>>> invocation)
>> >>>> make[2]: *** [bin/llvm-tblgen] Error 1
>> >>>> make[1]: *** [utils/TableGen/CMakeFiles/llvm-tblgen.dir/all] Error 2
>> >>>> make: *** [all] Error 2
>> >>>>
>> >>>> This is on x86_64-apple-darwin16 with Xcode 9.0.
>> >>>>          Jack
>> >>>>
>> >>>> _______________________________________________
>> >>>> LLVM Developers mailing list
>> >>>> llvm-dev at lists.llvm.org
>> >>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>> >>>>
>> >>>
>> >>
>> >
>> >
>> > _______________________________________________
>> > LLVM Developers mailing list
>> > llvm-dev at lists.llvm.org
>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>> >
>
>

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