[LLVMdev] Link error building llc

[Neale Ferguson]

I ran with VERBOSE=1 and see:

g++ -I/home/neale/LLVM/llvm/include -I/home/neale/LLVM/llvm/tools/llc
-D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -g
-fno-exceptions -fPIC  -Woverloaded-virtual    -pedantic -Wall -W
-Wwrite-strings -Wno-long-long -Wunused -Wno-unused-parameter  -g  -Wl,-R
-Wl,/home/neale/LLVM/llvm/Debug/bin -Wl,-export-dynamic
-L/home/neale/LLVM/llvm/Debug/lib -L/home/neale/LLVM/llvm/Debug/lib  -o
/home/neale/LLVM/llvm/Debug/bin/llc
/home/neale/LLVM/llvm/tools/llc/Debug/llc.o  \
        -lLLVMBitReader /home/neale/LLVM/llvm/Debug/lib/LLVMCBackend.o
-lLLVMCodeGen -lLLVMScalarOpts -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis
/home/neale/LLVM/llvm/Debug/lib/LLVMCppBackend.o -lLLVMTarget -lLLVMCore
-lLLVMSupport -lLLVMSystem   -lpthread -ldl -lm -lelf
/home/neale/LLVM/llvm/tools/llc/Debug/llc.o: In function
`ForceCodegenLinking':
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h:45:
undefined reference to
`llvm::createBURRListDAGScheduler(llvm::SelectionDAGISel*, bool)'
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h:46:
undefined reference to
`llvm::createTDRRListDAGScheduler(llvm::SelectionDAGISel*, bool)'
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h:47:
undefined reference to
`llvm::createTDListDAGScheduler(llvm::SelectionDAGISel*, bool)'
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h:48:
undefined reference to
`llvm::createFastDAGScheduler(llvm::SelectionDAGISel*, bool)'
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h:49:
undefined reference to
`llvm::createDefaultScheduler(llvm::SelectionDAGISel*, bool)'
/home/neale/LLVM/llvm/tools/llc/Debug/llc.o: In function
`ForceAsmWriterLinking':
/home/neale/LLVM/llvm/include/llvm/CodeGen/LinkAllAsmWriterComponents.h:30:
undefined reference to `llvm::linkOcamlGCPrinter()'
collect2: ld returned 1 exit status

So it appears to be missing LLVMSelectionDAG in the link specification. I've
been trying to wade through the Makefile* files to see how the link
specification is generated but am not getting anywhere. So my question is
how/where is this generated?

Neale


On 4/7/09 6:16 PM, "Anton Korobeynikov" <anton at korobeynikov.info> wrote:

> Hello, Neale
> 
>> These entry points are in modules that have been compiled and placed into an
>> archive. (e.g. llvm::createBURRListDAGScheduler is in ScheduleDAGRRList.cpp
>> whose object is placed in ./Debug/lib/libLLVMSelectionDAG.a).
>> 
>> I'm sure I've missed a configuration option or something trivial like that
>> but my newbie brain can't determine what it is.
> make VERBOSE=1 is your friend. Is the all necessary stuff linked in?