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

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `bolt-x86_64-ubuntu-shared` running on `bolt-worker` while building `cross-project-tests,lld,llvm` at step 6 "test-build-bolt-check-bolt".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/151/builds/7936

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

```
Step 6 (test-build-bolt-check-bolt) failure: test (failure)
...
11.143 [1490/18/196] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/SymbolTable.cpp.o
11.172 [1489/18/197] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/Symbols.cpp.o
11.206 [1488/18/198] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/SyntheticSections.cpp.o
11.233 [1487/18/199] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/Target.cpp.o
11.263 [1486/18/200] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/UnwindInfoSection.cpp.o
11.293 [1485/18/201] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/Writer.cpp.o
11.325 [1484/18/202] Building CXX object tools/lld/tools/lld/CMakeFiles/lld.dir/lld.cpp.o
11.347 [1483/18/203] Building CXX object tools/lld/tools/lld/CMakeFiles/lld.dir/lld-driver.cpp.o
11.780 [1482/18/204] Building CXX object lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o
11.870 [1481/18/205] 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 -fuse-ld=lld -Wl,--color-diagnostics   -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/worker/bolt-worker2/bolt-x86_64-ubuntu-shared/build/lib:"  lib/libLLVMCore.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/worker/bolt-worker2/bolt-x86_64-ubuntu-shared/build/lib && :
ld.lld: error: undefined symbol: llvm::lto::InputFile::~InputFile()
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(std::_Sp_counted_ptr<llvm::lto::InputFile*, (__gnu_cxx::_Lock_policy)2>::_M_dispose())

ld.lld: error: undefined symbol: llvm::lto::InputFile::getName() const
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::~DTLTO())
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::~DTLTO())
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::removeTempFiles())
>>> referenced 2 more times

ld.lld: error: undefined symbol: llvm::lto::LTO::~LTO()
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::~DTLTO())
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::~DTLTO())

ld.lld: error: undefined symbol: llvm::identify_magic(llvm::StringRef)
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::isThinArchive(llvm::StringRef) (.localalias))

ld.lld: error: undefined symbol: llvm::lto::InputFile::getSingleBitcodeModule()
>>> referenced by DTLTO.cpp
>>>               lib/DTLTO/CMakeFiles/LLVMDTLTO.dir/DTLTO.cpp.o:(llvm::lto::DTLTO::addInput(std::unique_ptr<llvm::lto::InputFile, std::default_delete<llvm::lto::InputFile>>) (.localalias))
collect2: error: ld returned 1 exit status
12.877 [1481/17/206] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
13.524 [1481/16/207] Building CXX object tools/lld/COFF/CMakeFiles/lldCOFF.dir/LTO.cpp.o
13.719 [1481/15/208] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
14.385 [1481/14/209] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/DriverUtils.cpp.o
14.999 [1481/13/210] Building CXX object tools/lld/ELF/CMakeFiles/lldELF.dir/LTO.cpp.o
15.251 [1481/12/211] Building CXX object tools/lld/COFF/CMakeFiles/lldCOFF.dir/SymbolTable.cpp.o
15.890 [1481/11/212] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
16.177 [1481/10/213] Building CXX object tools/lld/MachO/CMakeFiles/lldMachO.dir/LTO.cpp.o
16.610 [1481/9/214] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/ThinLTOCodeGenerator.cpp.o
17.827 [1481/8/215] Building CXX object tools/lld/COFF/CMakeFiles/lldCOFF.dir/InputFiles.cpp.o

```

</details>

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