[lldb-dev] lldb-server link failure with shared library configuration

[Greg Clayton via lldb-dev]

If we are pulling in the expression parser, that would explain our issues. If this currently happens in lldb-server we need to add LLVMRuntimeDyld to the link libraries. I know some people at Google have looked into getting lldb-server to link against as little as possible, and maybe this is just how things are for the time being. We should verify that. It would be nice if lldb-server didn't link against the expression parser if possible.

Greg

> On Aug 28, 2017, at 9:56 AM, Peeter Joot <peeterjoot at protonmail.com> wrote:
> 
> Hi Greg,
> 
> IRExecutionUnit.cpp looks like the origin of at least some of the undefined symbols:
> 
> .../llvm/include/llvm/ExecutionEngine/RTDyldMemoryManager.h:61: undefined reference to `vtable for llvm::RTDyldMemoryManager'                                                  
> 
> .../llvm/include/llvm/ExecutionEngine/JITSymbol.h:223: undefined reference to `vtable for llvm::JITSymbolResolver'                                                             
> 
> .../llvm/include/llvm/ExecutionEngine/RuntimeDyld.h:96: undefined reference to `vtable for llvm::RuntimeDyld::MemoryManager'                                                   
> 
> lib/liblldbExpression.a(IRExecutionUnit.cpp.o):(.data.rel.ro+0x90): undefined reference to `llvm::RTDyldMemoryManager::deregisterEHFrames()'
> 
> lib/liblldbExpression.a(IRExecutionUnit.cpp.o):(.data.rel.ro+0xa8): undefined reference to `llvm::RuntimeDyld::MemoryManager::anchor()'
> 
> lib/liblldbExpression.a(IRExecutionUnit.cpp.o):(.data.rel.ro+0x118): undefined reference to `llvm::JITSymbolResolver::anchor()'
> 
> lib/liblldbExpression.a(IRExecutionUnit.cpp.o):(.data.rel.ro._ZTVN4llvm18MCJITMemoryManagerE[_ZTVN4llvm18MCJITMemoryManagerE]+0x60): undefined reference to `llvm::RuntimeDyld:
> 
> :MemoryManager::anchor()'
> 
> 
> there are a couple of undefined vtable references in headers (also above), but it's not clear to me if these also neccessarily come from IRExectionUnix.cpp.
> 
> --
> Peeter
> 
> 

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