Build DPC++ toolchain with libc++ library undefined symbol `_ZN2cl4sycl3ext6oneapi10level_zero12make_contextERKSt6vectorINS0_6deviceESaIS5_EEmb' referenced in expression

[haonanya]

Build DPC++ toolchain with libc++ library, some link error occured:
[9/41] Linking CXX shared library lib/libsycl.so.5.4.0-0 FAILED: lib/libsycl.so.5.4.0-0 : && /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-maybe-uninitialized -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wmisleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -Wall -Wextra -Wno-deprecated-declarations -Werror -O3 -DNDEBUG -Wl,-z,defs -Wl,-z,nodelete -shared -Wl,-soname,libsycl.so.5 -o lib/libsycl.so.5.4.0-0 tools/sycl/source/CMakeFiles/sycl_object.dir/backend/opencl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/backend/level_zero.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/backend.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/accessor_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/allowlist.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/buffer_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/builtins_common.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/builtins_geometric.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/builtins_integer.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/builtins_math.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/builtins_relational.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/pi.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/common.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/config.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/context_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/device_binary_image.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/device_filter.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/device_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/error_handling/enqueue_kernel.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/event_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/filter_selector_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/force_device.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/global_handler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/helpers.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/handler_proxy.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/image_accessor_util.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/image_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/kernel_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/kernel_program_cache.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/memory_manager.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/platform_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/program_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/program_manager/program_manager.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/queue_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/online_compiler/online_compiler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/os_util.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/persistent_device_code_cache.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/platform_util.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/reduction.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/sampler_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/stream_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/commands.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/leaves_collection.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/scheduler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/scheduler_helpers.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/graph_processor.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/scheduler/graph_builder.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/spec_constant_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/sycl_mem_obj_t.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/usm/usm_impl.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/util.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/accessor.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/context.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/device.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/device_selector.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/event.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/exception.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/exception_list.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/function_pointer.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/half_type.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/handler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/interop_handle.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/interop_handler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/kernel.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/kernel_bundle.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/platform.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/program.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/queue.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/sampler.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/stream.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/spirv_ops.cpp.o tools/sycl/source/CMakeFiles/sycl_object.dir/detail/posix_pi.cpp.o -Wl,-rpath,/home/haonanya/workspace/llvm/buildWithLibcpp/lib: lib/libxpti.a -Wl,/home/haonanya/workspace/llvm/sycl/source/abi_replacements_linux.txt -Wl,--version-script=/home/haonanya/workspace/llvm/sycl/source/ld-version-script.txt -ldl lib/libOpenCL.so.1.2 -ldl -lpthread -L/home/haonanya/workspace/llvm-project/build/lib/ -Wl,-rpath,/home/haonanya/workspace/llvm-project/build/lib/ -nodefaultlibs -lc++ -lc++abi -lm -lc -lgcc_s -lgcc && : /home/haonanya/workspace/llvm/sycl/source/abi_replacements_linux.txt:4: undefined symbol _ZN2cl4sycl3ext6oneapi10level_zero12make_contextERKSt6vectorINS0_6deviceESaIS5_EEmb' referenced in expression
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.`

I have build libc++ with LLVM 12, and I follow the steps on https://github.com/intel/llvm/blob/sycl/sycl/doc/GetStartedGuide.md#build-dpc-toolchain-with-libc-library. I remember that it was build successful long time ago. When I pull latest changes, it begins to build failed, could you please help to figure out how to resolve the link error?
Thanks very much.

[alexbatashev]

@haonanya I suggest you commenting these lines as a workaround:

llvm/sycl/source/CMakeLists.txt

Lines 55 to 57 in 0c33048

	set(abi_linker_script "${CMAKE_CURRENT_SOURCE_DIR}/abi_replacements_linux.txt")
	target_link_libraries(
	${LIB_NAME} PRIVATE "-Wl,${abi_linker_script}")

[haonanya]

Yes, command is right, please update CMakeList.txt using the workaround.

[linuxcpp6]

This CMakeList.txt alrealy has these four lines.

[alexbatashev]

@TechnologyAndEducation you should comment them out.

[linuxcpp6]

@TechnologyAndEducation you should comment them out.
Thanks

[linuxcpp6]

it solved

[haonanya]

Thanks @alexbatashev offer workaround.

llvm/sycl/source/CMakeLists.txt

Lines 55 to 58 in 0c33048

	set(abi_linker_script "${CMAKE_CURRENT_SOURCE_DIR}/abi_replacements_linux.txt")
	target_link_libraries(
	${LIB_NAME} PRIVATE "-Wl,${abi_linker_script}")
	set_target_properties(${LIB_NAME} PROPERTIES LINK_DEPENDS ${abi_linker_script})