Re: [OE-core] [PATCH v3 1/8] clang: improve opt-viewer PACKAGECONFIG

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Mon Sep 15, 2025 at 9:11 PM CEST, Ross Burton via lists.openembedded.org wrote:
> Instead of patching the python module detection, we can use the hidden
> option LLVM_TOOL_OPT_VIEWER_BUILD.
>
> Signed-off-by: Ross Burton <ross.burton@arm.com>
> ---

Hi Ross,

Sorry, but it looks like one of these patches is breaking tc tests:

ERROR: clang-native-21.1.1-r0 do_compile: Execution of '/srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/temp/run.do_compile.1114131' failed with exit code 1
...
/clang-tblgen.dir/ClangCommentHTMLNamedCharacterReferenceEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangCommentHTMLTagsEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangDataCollectorsEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangDiagnosticsEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangOpcodesEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangOpenCLBuiltinEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangOptionDocEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangSACheckersEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangSyntaxEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangTypeNodesEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/MveEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/NeonEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/RISCVVEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/SveEmitter.cpp.o utils/TableGen/CMakeFiles/clang-tblgen.dir/TableGen.cpp.o -o bin/clang-tblgen  /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/recipe-sysroot-native/usr/lib/libLLVMSupport.a  /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/recipe-sysroot-native/usr/lib/libLLVMTableGen.a  /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/recipe-sysroot-native/usr/lib/libLLVMSupport.a  -lrt  -ldl  -lm  -lz  -lzstd  /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/recipe-sysroot-native/usr/lib/libLLVMDemangle.a && :
| /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/hosttools/ld: /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/work/x86_64-linux/clang-native/21.1.1/recipe-sysroot-native/usr/lib/libLLVMTableGen.a(TGLexer.cpp.o): in function `llvm::TGLexer::LexNumber() [clone .localalias]':
| TGLexer.cpp:(.text._ZN4llvm7TGLexer9LexNumberEv+0xea): undefined reference to `__isoc23_strtoll'
| /srv/pokybuild/yocto-worker/qemuarm64-tc/build/build-st-3689262/tmp/hosttools/ld: TGLexer.cpp:(.text._ZN4llvm7TGLexer9LexNumberEv+0xf1): undefined reference to `__isoc23_strtoull'

https://autobuilder.yoctoproject.org/valkyrie/#/builders/5/builds/2313
https://autobuilder.yoctoproject.org/valkyrie/#/builders/28/builds/2308

On the good news, reproducibility issues seem to be gone.

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com