[llvm-dev] opt: undefined symbol: _ZN4llvm9DebugFlagE

Krzysztof Parzyszek via llvm-dev llvm-dev at lists.llvm.org
Fri Oct 30 10:02:12 PDT 2015

On 10/30/2015 11:01 AM, Irini via llvm-dev wrote:
> I try to run my pass by executing:
>      opt -load ../../../Release+Asserts/lib/MyPass.so -MyPassName
> But I get this error:
> Error opening '../../../Release+Asserts/lib/MyPass.so':
> ../../../Release+Asserts/lib/MyPass.so: undefined symbol:
> _ZN4llvm9DebugFlagE
>    -load request ignored.
> opt: Unknown command line argument '-MyPassName'. Try: 'opt -help'

Is your "opt" built with NDEBUG?


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