llvmorg-16.0.0-rc1 Stage 2 build failure (default linker is LLD, shared libraries)

[amy-kwan]

When performing a multistage shared library build of LLVM 16.0.0 rc1 on Power with LLD as the default linker, the following build failure is encountered on the second stage:

FAILED: lib/libLTO.so.16git
: && /home/amyk/llvm/lld-shared-lib2/stage1/bin/clang++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete -fuse-ld=lld -Wl,--color-diagnostics   -Wl,--gc-sections  -Wl,--version-script,"/home/amyk/llvm/lld-shared-lib2/stage2/tools/lto/LTO.exports" -shared -Wl,-soname,libLTO.so.16git -o lib/libLTO.so.16git tools/lto/CMakeFiles/LTO.dir/LTODisassembler.cpp.o tools/lto/CMakeFiles/LTO.dir/lto.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib"  lib/libLLVMAArch64AsmParser.so.16git  lib/libLLVMAMDGPUAsmParser.so.16git  lib/libLLVMARMAsmParser.so.16git  lib/libLLVMAVRAsmParser.so.16git  lib/libLLVMBPFAsmParser.so.16git  lib/libLLVMMipsAsmParser.so.16git  lib/libLLVMMSP430AsmParser.so.16git  lib/libLLVMPowerPCAsmParser.so.16git  lib/libLLVMRISCVAsmParser.so.16git  lib/libLLVMSparcAsmParser.so.16git  lib/libLLVMSystemZAsmParser.so.16git  lib/libLLVMVEAsmParser.so.16git  lib/libLLVMWebAssemblyAsmParser.so.16git  lib/libLLVMX86AsmParser.so.16git  lib/libLLVMAArch64CodeGen.so.16git  lib/libLLVMAMDGPUCodeGen.so.16git  lib/libLLVMARMCodeGen.so.16git  lib/libLLVMAVRCodeGen.so.16git  lib/libLLVMBPFCodeGen.so.16git  lib/libLLVMHexagonCodeGen.so.16git  lib/libLLVMLanaiCodeGen.so.16git  lib/libLLVMMipsCodeGen.so.16git  lib/libLLVMMSP430CodeGen.so.16git  lib/libLLVMNVPTXCodeGen.so.16git  lib/libLLVMPowerPCCodeGen.so.16git  lib/libLLVMRISCVCodeGen.so.16git  lib/libLLVMSparcCodeGen.so.16git  lib/libLLVMSystemZCodeGen.so.16git  lib/libLLVMVECodeGen.so.16git  lib/libLLVMWebAssemblyCodeGen.so.16git  lib/libLLVMX86CodeGen.so.16git  lib/libLLVMXCoreCodeGen.so.16git  lib/libLLVMAVRDesc.so.16git  lib/libLLVMBPFDesc.so.16git  lib/libLLVMMipsDesc.so.16git  lib/libLLVMMSP430Desc.so.16git  lib/libLLVMNVPTXDesc.so.16git  lib/libLLVMPowerPCDesc.so.16git  lib/libLLVMSparcDesc.so.16git  lib/libLLVMVEDesc.so.16git  lib/libLLVMX86Desc.so.16git  lib/libLLVMXCoreDesc.so.16git  lib/libLLVMAArch64Disassembler.so.16git  lib/libLLVMAMDGPUDisassembler.so.16git  lib/libLLVMARMDisassembler.so.16git  lib/libLLVMAVRDisassembler.so.16git  lib/libLLVMBPFDisassembler.so.16git  lib/libLLVMHexagonDisassembler.so.16git  lib/libLLVMLanaiDisassembler.so.16git  lib/libLLVMMipsDisassembler.so.16git  lib/libLLVMMSP430Disassembler.so.16git  lib/libLLVMPowerPCDisassembler.so.16git  lib/libLLVMRISCVDisassembler.so.16git  lib/libLLVMSparcDisassembler.so.16git  lib/libLLVMSystemZDisassembler.so.16git  lib/libLLVMVEDisassembler.so.16git  lib/libLLVMWebAssemblyDisassembler.so.16git  lib/libLLVMX86Disassembler.so.16git  lib/libLLVMXCoreDisassembler.so.16git  lib/libLLVMAVRInfo.so.16git  lib/libLLVMBPFInfo.so.16git  lib/libLLVMMipsInfo.so.16git  lib/libLLVMMSP430Info.so.16git  lib/libLLVMNVPTXInfo.so.16git  lib/libLLVMPowerPCInfo.so.16git  lib/libLLVMSparcInfo.so.16git  lib/libLLVMVEInfo.so.16git  lib/libLLVMX86Info.so.16git  lib/libLLVMXCoreInfo.so.16git  lib/libLLVMLTO.so.16git  lib/libLLVMHexagonAsmParser.so.16git  lib/libLLVMLanaiAsmParser.so.16git  lib/libLLVMAArch64Desc.so.16git  lib/libLLVMAArch64Info.so.16git  lib/libLLVMAMDGPUDesc.so.16git  lib/libLLVMAMDGPUInfo.so.16git  lib/libLLVMARMDesc.so.16git  lib/libLLVMARMInfo.so.16git  lib/libLLVMHexagonDesc.so.16git  lib/libLLVMHexagonInfo.so.16git  lib/libLLVMLanaiDesc.so.16git  lib/libLLVMLanaiInfo.so.16git  lib/libLLVMRISCVDesc.so.16git  lib/libLLVMRISCVInfo.so.16git  lib/libLLVMSystemZDesc.so.16git  lib/libLLVMSystemZInfo.so.16git  lib/libLLVMWebAssemblyDesc.so.16git  lib/libLLVMWebAssemblyInfo.so.16git  lib/libLLVMMCDisassembler.so.16git  lib/libLLVMCodeGen.so.16git  lib/libLLVMTarget.so.16git  lib/libLLVMMC.so.16git  lib/libLLVMBitReader.so.16git  lib/libLLVMCore.so.16git  lib/libLLVMSupport.so.16git  -Wl,-rpath-link,/home/amyk/llvm/lld-shared-lib2/stage2/lib && :
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMCreateDisasm' failed: symbol not defined
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMCreateDisasmCPU' failed: symbol not defined
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMDisasmDispose' failed: symbol not defined
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMDisasmInstruction' failed: symbol not defined
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMSetDisasmOptions' failed: symbol not defined
ld.lld: error: version script assignment of 'LLVM_16' to symbol 'LLVMCreateDisasmCPUFeatures' failed: symbol not defined
clang-16: error: linker command failed with exit code 1 (use -v to see invocation)
[4020/5862] Building CXX object tools/clang/lib/AST...iles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o
ninja: build stopped: subcommand failed.

This is seen as a result of 241dbd3.

[amy-kwan]

The following fixes have been committed to main and resolves this build failure:

• c294bdd
• bf07de3

We would like to backport these commits into release/16.x to resolve the second stage build failures seen on Power.

/cherry-pick c294bdd c294bdd

[llvmbot]

Failed to cherry-pick: c294bdd

https://github.com/llvm/llvm-project/actions/runs/4107490472

Please manually backport the fix and push it to your github fork. Once this is done, please add a comment like this:

/branch <user>/<repo>/<branch>

[amy-kwan]

/branch amy-kwan/llvm-project/amykIssue60568

[llvmbot]

/pull-request llvm/llvm-project-release-prs#279