[lld] [llvm] [DTLTO][ELF][COFF] Add archive support for DTLTO. (PR #157043)

Wed Dec 31 00:45:32 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `amdgpu-offload-ubuntu-22-cmake-build-only` running on `rocm-docker-ubu-22` while building `cross-project-tests,lld,llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/203/builds/32825

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 4 (annotate) failure: '../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py --jobs=32' (failure)
...
[3108/8273] Creating library symlink lib/libLLVMMCDisassembler.so
[3109/8273] Linking CXX shared library lib/libLLVMSPIRVInfo.so.22.0git
[3110/8273] Building NVVMOps.h.inc...
[3111/8273] Creating library symlink lib/libLLVMMCA.so
[3112/8273] Linking CXX shared library lib/libLLVMDWARFCFIChecker.so.22.0git
[3113/8273] Creating library symlink lib/libLLVMSPIRVInfo.so
[3114/8273] Creating library symlink lib/libLLVMDWARFCFIChecker.so
[3115/8273] Linking CXX shared library lib/libLLVMFrontendHLSL.so.22.0git
[3116/8273] Linking CXX shared library lib/libLLVMCFGuard.so.22.0git
[3117/8273] Linking CXX shared library lib/libLLVMDTLTO.so.22.0git
FAILED: lib/libLLVMDTLTO.so.22.0git 
: && /usr/bin/c++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libLLVMDTLTO.so.22.0git -o lib/libLLVMDTLTO.so.22.0git lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/lib:"  lib/libLLVMCore.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/lib && :
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `std::_Sp_counted_ptr<llvm::lto::InputFile*, (__gnu_cxx::_Lock_policy)2>::_M_dispose()':
DTLTO.cpp:(.text._ZNSt15_Sp_counted_ptrIPN4llvm3lto9InputFileELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv[_ZNSt15_Sp_counted_ptrIPN4llvm3lto9InputFileELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv]+0x12): undefined reference to `llvm::lto::InputFile::~InputFile()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::~DTLTO()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD2Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x66): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD2Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x295): undefined reference to `llvm::lto::LTO::~LTO()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::~DTLTO()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD0Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x66): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD0Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x279): undefined reference to `llvm::lto::LTO::~LTO()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::isThinArchive(llvm::StringRef) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO13isThinArchiveENS_9StringRefE+0x6fa): undefined reference to `llvm::identify_magic(llvm::StringRef)'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::removeTempFiles()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO15removeTempFilesEv+0x4e): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::addInput(std::unique_ptr<llvm::lto::InputFile, std::default_delete<llvm::lto::InputFile> >) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO8addInputESt10unique_ptrINS0_9InputFileESt14default_deleteIS3_EE+0xaf): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO8addInputESt10unique_ptrINS0_9InputFileESt14default_deleteIS3_EE+0x166): undefined reference to `llvm::lto::InputFile::getSingleBitcodeModule()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::saveInputArchiveMember(llvm::lto::InputFile*) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO22saveInputArchiveMemberEPNS0_9InputFileE+0x32): undefined reference to `llvm::lto::InputFile::getName() const'
collect2: error: ld returned 1 exit status
[3118/8273] Creating library symlink lib/libLLVMFrontendHLSL.so
[3119/8273] Creating library symlink lib/libLLVMCFGuard.so
[3120/8273] Building TosaOps.h.inc...
[3121/8273] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/OffloadBundle.cpp.o
[3122/8273] Building NVVMOpsAttributes.h.inc...
[3123/8273] Building NVVMOpsEnums.cpp.inc...
[3124/8273] Building SPIRVSerialization.inc...
[3125/8273] Linking CXX shared library lib/libLLVMSPIRVDesc.so.22.0git
[3126/8273] Building NVVMOpsEnums.h.inc...
[3127/8273] Linking CXX shared library lib/libLLVMAsmParser.so.22.0git
[3128/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
[3129/8273] Building CXX object lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o
[3130/8273] Building CXX object lib/Bitcode/Writer/CMakeFiles/LLVMBitWriter.dir/BitcodeWriter.cpp.o
[3131/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
[3132/8273] Building X86GenRegisterInfo.inc...
[3133/8273] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ThreadSafeModule.cpp.o
[3134/8273] Building CXX object lib/ToolDrivers/llvm-lib/CMakeFiles/LLVMLibDriver.dir/LibDriver.cpp.o
[3135/8273] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
[3136/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
Step 7 (build cmake config) failure: build cmake config (failure)
...
[3108/8273] Creating library symlink lib/libLLVMMCDisassembler.so
[3109/8273] Linking CXX shared library lib/libLLVMSPIRVInfo.so.22.0git
[3110/8273] Building NVVMOps.h.inc...
[3111/8273] Creating library symlink lib/libLLVMMCA.so
[3112/8273] Linking CXX shared library lib/libLLVMDWARFCFIChecker.so.22.0git
[3113/8273] Creating library symlink lib/libLLVMSPIRVInfo.so
[3114/8273] Creating library symlink lib/libLLVMDWARFCFIChecker.so
[3115/8273] Linking CXX shared library lib/libLLVMFrontendHLSL.so.22.0git
[3116/8273] Linking CXX shared library lib/libLLVMCFGuard.so.22.0git
[3117/8273] Linking CXX shared library lib/libLLVMDTLTO.so.22.0git
FAILED: lib/libLLVMDTLTO.so.22.0git 
: && /usr/bin/c++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libLLVMDTLTO.so.22.0git -o lib/libLLVMDTLTO.so.22.0git lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/lib:"  lib/libLLVMCore.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-ubuntu-22-cmake-build-only/build/lib && :
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `std::_Sp_counted_ptr<llvm::lto::InputFile*, (__gnu_cxx::_Lock_policy)2>::_M_dispose()':
DTLTO.cpp:(.text._ZNSt15_Sp_counted_ptrIPN4llvm3lto9InputFileELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv[_ZNSt15_Sp_counted_ptrIPN4llvm3lto9InputFileELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv]+0x12): undefined reference to `llvm::lto::InputFile::~InputFile()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::~DTLTO()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD2Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x66): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD2Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x295): undefined reference to `llvm::lto::LTO::~LTO()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::~DTLTO()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD0Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x66): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTOD0Ev[_ZN4llvm3lto5DTLTOD5Ev]+0x279): undefined reference to `llvm::lto::LTO::~LTO()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::isThinArchive(llvm::StringRef) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO13isThinArchiveENS_9StringRefE+0x6fa): undefined reference to `llvm::identify_magic(llvm::StringRef)'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::removeTempFiles()':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO15removeTempFilesEv+0x4e): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::addInput(std::unique_ptr<llvm::lto::InputFile, std::default_delete<llvm::lto::InputFile> >) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO8addInputESt10unique_ptrINS0_9InputFileESt14default_deleteIS3_EE+0xaf): undefined reference to `llvm::lto::InputFile::getName() const'
/usr/bin/ld: DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO8addInputESt10unique_ptrINS0_9InputFileESt14default_deleteIS3_EE+0x166): undefined reference to `llvm::lto::InputFile::getSingleBitcodeModule()'
/usr/bin/ld: lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o: in function `llvm::lto::DTLTO::saveInputArchiveMember(llvm::lto::InputFile*) [clone .localalias]':
DTLTO.cpp:(.text._ZN4llvm3lto5DTLTO22saveInputArchiveMemberEPNS0_9InputFileE+0x32): undefined reference to `llvm::lto::InputFile::getName() const'
collect2: error: ld returned 1 exit status
[3118/8273] Creating library symlink lib/libLLVMFrontendHLSL.so
[3119/8273] Creating library symlink lib/libLLVMCFGuard.so
[3120/8273] Building TosaOps.h.inc...
[3121/8273] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/OffloadBundle.cpp.o
[3122/8273] Building NVVMOpsAttributes.h.inc...
[3123/8273] Building NVVMOpsEnums.cpp.inc...
[3124/8273] Building SPIRVSerialization.inc...
[3125/8273] Linking CXX shared library lib/libLLVMSPIRVDesc.so.22.0git
[3126/8273] Building NVVMOpsEnums.h.inc...
[3127/8273] Linking CXX shared library lib/libLLVMAsmParser.so.22.0git
[3128/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
[3129/8273] Building CXX object lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o
[3130/8273] Building CXX object lib/Bitcode/Writer/CMakeFiles/LLVMBitWriter.dir/BitcodeWriter.cpp.o
[3131/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
[3132/8273] Building X86GenRegisterInfo.inc...
[3133/8273] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ThreadSafeModule.cpp.o
[3134/8273] Building CXX object lib/ToolDrivers/llvm-lib/CMakeFiles/LLVMLibDriver.dir/LibDriver.cpp.o
[3135/8273] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
[3136/8273] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/157043