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

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Wed, 2025-09-17 at 13:06 +0200, Mathieu Dubois-Briand via lists.openembedded.org wrote:
> 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.

This is a horrible one.

For a bit of background and the fun we had in pseudo with this:

https://git.yoctoproject.org/pseudo/commit/?id=865ca5b647bba47ca5c4d3e65597d9a25d4261bf

Cheers,

Richard