Date: Wed, 7 Jul 2021 17:06:33 -0400 From: Ryan Stone <rysto32@gmail.com> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Cc: Dimitry Andric <dim@freebsd.org> Subject: clang build failure with WITH_LLVM_TARGET_BPF=yes Message-ID: <CAFMmRNxSHPN41gQS5z53FeGRabQ6O4vT0_gi%2BBQbd1vRjKkS9g@mail.gmail.com>
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I have the following option enabled in src.conf, and I'm getting this build failure in clang. Disabling the option seems to fix the build. ld: error: undefined symbol: llvm::initializeBPFAdjustOptPass(llvm::PassRegistry&) >>> referenced by BPFTargetMachine.cpp >>> BPFTargetMachine.o:(LLVMInitializeBPFTarget) in archive /usr/obj/srcpool/src/rstone/freebsd/amd64.amd64/tmp/obj-tools/lib/clan g/libllvm/libllvm.a ld: error: undefined symbol: llvm::initializeBPFCheckAndAdjustIRPass(llvm::PassRegistry&) >>> referenced by BPFTargetMachine.cpp >>> BPFTargetMachine.o:(LLVMInitializeBPFTarget) in archive /usr/obj/srcpool/src/rstone/freebsd/amd64.amd64/tmp/obj-tools/lib/clan g/libllvm/libllvm.a ld: error: undefined symbol: llvm::createBPFCheckAndAdjustIR() >>> referenced by BPFTargetMachine.cpp >>> BPFTargetMachine.o:((anonymous namespace)::BPFPassConfig::addIRPasses()) in archive /usr/obj/srcpool/src/rstone/freebsd/amd64. amd64/tmp/obj-tools/lib/clang/libllvm/libllvm.a ld: error: undefined symbol: llvm::createBPFAdjustOpt() >>> referenced by BPFTargetMachine.cpp >>> BPFTargetMachine.o:(std::__1::__function::__func<llvm::BPFTargetMachine::adjustPassManager(llvm::PassManagerBuilder&)::$_2, st d::__1::allocator<llvm::BPFTargetMachine::adjustPassManager(llvm::PassManagerBuilder&)::$_2>, void (llvm::PassManagerBuilder const&, llvm::legac y::PassManagerBase&)>::operator()(llvm::PassManagerBuilder const&, llvm::legacy::PassManagerBase&)) in archive /usr/obj/srcpool/src/rstone/freeb sd/amd64.amd64/tmp/obj-tools/lib/clang/libllvm/libllvm.a ld: error: undefined symbol: llvm::BPFAdjustOptPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) >>> referenced by BPFTargetMachine.cpp >>> BPFTargetMachine.o:(llvm::detail::PassModel<llvm::Module, llvm::BPFAdjustOptPass, llvm::PreservedAnalyses, llvm::AnalysisManag er<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)) in archive /usr/obj/srcpool/src/rstone/freebsd/amd64.amd64/tmp/obj -tools/lib/clang/libllvm/libllvm.a
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