[clang] [llvm] [Offload][libsycl][clang-sycl-linker] Simplify SYCL Offload wrapping (PR #193876)

Mon Apr 27 14:46:23 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `amdgpu-offload-build-only` running on `AMD-bb-w-02` while building `clang,libsycl,llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/226/builds/5459

<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)
...
[8492/8587] Linking CXX shared library lib/libFortranUtils.so.23.0git
[8493/8587] Creating library symlink lib/libFortranUtils.so
[8494/8587] Linking CXX shared library lib/libFIROpenACCSupport.so.23.0git
[8495/8587] Creating library symlink lib/libFIROpenACCSupport.so
[8496/8587] Linking CXX shared library lib/libFIRTestOpenACCInterfaces.so.23.0git
[8497/8587] Creating library symlink lib/libFIRTestOpenACCInterfaces.so
[8498/8587] Linking CXX shared library lib/libFIROpenACCAnalysis.so.23.0git
[8499/8587] Creating library symlink lib/libFIROpenACCAnalysis.so
[8500/8587] Building CXX object tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o
[8501/8587] Linking CXX executable bin/clang-sycl-linker
FAILED: bin/clang-sycl-linker 
: && /opt/rh/gcc-toolset-13/root/usr/bin/c++ -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-dangling-reference -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-dangling-pointer -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-build-only/build/./lib  -Wl,--gc-sections tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o -o bin/clang-sycl-linker  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-build-only/build/lib:"  lib/libLLVMAMDGPUCodeGen.so.23.0git  lib/libLLVMAMDGPUAsmParser.so.23.0git  lib/libLLVMAMDGPUDisassembler.so.23.0git  lib/libLLVMSPIRVCodeGen.so.23.0git  lib/libLLVMSPIRVDesc.so.23.0git  lib/libLLVMSPIRVInfo.so.23.0git  lib/libLLVMX86CodeGen.so.23.0git  lib/libLLVMX86AsmParser.so.23.0git  lib/libLLVMX86Desc.so.23.0git  lib/libLLVMX86Disassembler.so.23.0git  lib/libLLVMX86Info.so.23.0git  lib/libLLVMOption.so.23.0git  -lpthread  lib/libclangBasic.so.23.0git  lib/libLLVMAMDGPUDesc.so.23.0git  lib/libLLVMAMDGPUInfo.so.23.0git  lib/libLLVMAMDGPUUtils.so.23.0git  lib/libLLVMLinker.so.23.0git  lib/libLLVMTarget.so.23.0git  lib/libLLVMBitWriter.so.23.0git  lib/libLLVMAnalysis.so.23.0git  lib/libLLVMObject.so.23.0git  lib/libLLVMIRReader.so.23.0git  lib/libLLVMMC.so.23.0git  lib/libLLVMCore.so.23.0git  lib/libLLVMBinaryFormat.so.23.0git  lib/libLLVMTargetParser.so.23.0git  lib/libLLVMSupport.so.23.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-build-only/build/lib && :
/opt/rh/gcc-toolset-13/root/usr/libexec/gcc/x86_64-redhat-linux/13/ld: tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o: undefined reference to symbol '_ZN4llvm10offloading4sycl16writeSymbolTableENS_8ArrayRefINS_9StringRefEEERNS_11SmallStringILj0EEE'
/opt/rh/gcc-toolset-13/root/usr/libexec/gcc/x86_64-redhat-linux/13/ld: /home/botworker/bbot/amdgpu-offload-build-only/build/./lib/libLLVMFrontendOffloading.so.23.0git: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[8502/8587] Linking CXX shared library lib/libFIROpenACCTransforms.so.23.0git
[8503/8587] Linking CXX shared library lib/libFIRCodeGen.so.23.0git
[8504/8587] Linking CXX shared library lib/libFlangOpenMPTransforms.so.23.0git
[8505/8587] Linking CXX executable bin/fir-lsp-server
[8506/8587] Building CXX object tools/clang/tools/clang-linker-wrapper/CMakeFiles/clang-linker-wrapper.dir/ClangLinkerWrapper.cpp.o
[8507/8587] Building CXX object tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenModule.cpp.o
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 62, in step
    yield
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 53, in main
    run_command(["ninja"])
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 75, in run_command
    util.report_run_cmd(cmd, cwd=directory)
  File "/home/botworker/bbot/amdgpu-offload-build-only/llvm-zorg/zorg/buildbot/builders/annotated/util.py", line 49, in report_run_cmd
    subprocess.check_call(cmd, shell=shell, *args, **kwargs)
  File "/usr/lib64/python3.6/subprocess.py", line 311, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ninja']' returned non-zero exit status 1.
@@@STEP_FAILURE@@@
Step 7 (build cmake config) failure: build cmake config (failure)
...
[8492/8587] Linking CXX shared library lib/libFortranUtils.so.23.0git
[8493/8587] Creating library symlink lib/libFortranUtils.so
[8494/8587] Linking CXX shared library lib/libFIROpenACCSupport.so.23.0git
[8495/8587] Creating library symlink lib/libFIROpenACCSupport.so
[8496/8587] Linking CXX shared library lib/libFIRTestOpenACCInterfaces.so.23.0git
[8497/8587] Creating library symlink lib/libFIRTestOpenACCInterfaces.so
[8498/8587] Linking CXX shared library lib/libFIROpenACCAnalysis.so.23.0git
[8499/8587] Creating library symlink lib/libFIROpenACCAnalysis.so
[8500/8587] Building CXX object tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o
[8501/8587] Linking CXX executable bin/clang-sycl-linker
FAILED: bin/clang-sycl-linker 
: && /opt/rh/gcc-toolset-13/root/usr/bin/c++ -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-dangling-reference -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-dangling-pointer -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-build-only/build/./lib  -Wl,--gc-sections tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o -o bin/clang-sycl-linker  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-build-only/build/lib:"  lib/libLLVMAMDGPUCodeGen.so.23.0git  lib/libLLVMAMDGPUAsmParser.so.23.0git  lib/libLLVMAMDGPUDisassembler.so.23.0git  lib/libLLVMSPIRVCodeGen.so.23.0git  lib/libLLVMSPIRVDesc.so.23.0git  lib/libLLVMSPIRVInfo.so.23.0git  lib/libLLVMX86CodeGen.so.23.0git  lib/libLLVMX86AsmParser.so.23.0git  lib/libLLVMX86Desc.so.23.0git  lib/libLLVMX86Disassembler.so.23.0git  lib/libLLVMX86Info.so.23.0git  lib/libLLVMOption.so.23.0git  -lpthread  lib/libclangBasic.so.23.0git  lib/libLLVMAMDGPUDesc.so.23.0git  lib/libLLVMAMDGPUInfo.so.23.0git  lib/libLLVMAMDGPUUtils.so.23.0git  lib/libLLVMLinker.so.23.0git  lib/libLLVMTarget.so.23.0git  lib/libLLVMBitWriter.so.23.0git  lib/libLLVMAnalysis.so.23.0git  lib/libLLVMObject.so.23.0git  lib/libLLVMIRReader.so.23.0git  lib/libLLVMMC.so.23.0git  lib/libLLVMCore.so.23.0git  lib/libLLVMBinaryFormat.so.23.0git  lib/libLLVMTargetParser.so.23.0git  lib/libLLVMSupport.so.23.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-build-only/build/lib && :
/opt/rh/gcc-toolset-13/root/usr/libexec/gcc/x86_64-redhat-linux/13/ld: tools/clang/tools/clang-sycl-linker/CMakeFiles/clang-sycl-linker.dir/ClangSYCLLinker.cpp.o: undefined reference to symbol '_ZN4llvm10offloading4sycl16writeSymbolTableENS_8ArrayRefINS_9StringRefEEERNS_11SmallStringILj0EEE'
/opt/rh/gcc-toolset-13/root/usr/libexec/gcc/x86_64-redhat-linux/13/ld: /home/botworker/bbot/amdgpu-offload-build-only/build/./lib/libLLVMFrontendOffloading.so.23.0git: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[8502/8587] Linking CXX shared library lib/libFIROpenACCTransforms.so.23.0git
[8503/8587] Linking CXX shared library lib/libFIRCodeGen.so.23.0git
[8504/8587] Linking CXX shared library lib/libFlangOpenMPTransforms.so.23.0git
[8505/8587] Linking CXX executable bin/fir-lsp-server
[8506/8587] Building CXX object tools/clang/tools/clang-linker-wrapper/CMakeFiles/clang-linker-wrapper.dir/ClangLinkerWrapper.cpp.o
[8507/8587] Building CXX object tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenModule.cpp.o
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 62, in step
    yield
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 53, in main
    run_command(["ninja"])
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 75, in run_command
    util.report_run_cmd(cmd, cwd=directory)
  File "/home/botworker/bbot/amdgpu-offload-build-only/llvm-zorg/zorg/buildbot/builders/annotated/util.py", line 49, in report_run_cmd
    subprocess.check_call(cmd, shell=shell, *args, **kwargs)
  File "/usr/lib64/python3.6/subprocess.py", line 311, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ninja']' returned non-zero exit status 1.
program finished with exit code 0
elapsedTime=81.570821

```

</details>

https://github.com/llvm/llvm-project/pull/193876