Re: [OE-core] [PATCH] llvm: enable LLVMgold.so build by adding binutils dependency

Antonin Godard
2026-01-14T15:58:26Z

Hi,

On Tue Jan 13, 2026 at 11:54 PM CET, mark.yang via lists.openembedded.org wrote:
> From: "mark.yang" <mark.yang@lge.com>
>
> Currently, LLVMgold.so is not built because the binutils headers
> are missing during the build process.
>
> This allows LLVM to find the necessary headers and build the LLVMgold.so,
> which is required for Link Time Optimization (LTO) support properly.
>
> Signed-off-by: mark.yang <mark.yang@lge.com>
> ---
> meta/recipes-devtools/clang/llvm_git.bb | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/meta/recipes-devtools/clang/llvm_git.bb b/meta/recipes-devtools/clang/llvm_git.bb
> index 96ea383731..bed9988c1a 100644
> --- a/meta/recipes-devtools/clang/llvm_git.bb
> +++ b/meta/recipes-devtools/clang/llvm_git.bb
> @@ -11,7 +11,7 @@ require common-source.inc
>
> LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=8a15a0759ef07f2682d2ba4b893c9afe"
>
> -DEPENDS = "llvm-tblgen-native libffi libxml2 zlib zstd"
> +DEPENDS = "llvm-tblgen-native libffi libxml2 zlib zstd binutils"
>
> inherit cmake pkgconfig lib_package multilib_header
>
> @@ -50,6 +50,7 @@ EXTRA_OECMAKE += "-DCMAKE_BUILD_TYPE=MinSizeRel \
> -DLLVM_TOOL_YAML2OBJ_BUILD=OFF \
> -DLLVM_NATIVE_TOOL_DIR=${STAGING_BINDIR_NATIVE} \
> -DLLVM_TABLEGEN=${STAGING_BINDIR_NATIVE}/llvm-tblgen \
> + -DLLVM_BINUTILS_INCDIR=${STAGING_INCDIR} \
> -DCROSS_TOOLCHAIN_FLAGS_NATIVE='-DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain-native.cmake' \
> "
>

I think this triggered the following error on our test infrastructure:

NOTE: Running task 9262 of 9824 (virtual:native:/srv/pokybuild/yocto-worker/qemux86-64-ltp/build/layers/openembedded-core/meta/recipes-devtools/clang/libclc_git.bb:do_create_spdx)
ERROR: llvm-21.1.8-r1 do_package: QA Issue: llvm: Files/directories were installed but not shipped in any package:
/usr/lib/LLVMgold.so

Can you have a look?

https://autobuilder.yoctoproject.org/valkyrie/#/builders/63/builds/2846
https://autobuilder.yoctoproject.org/valkyrie/api/v2/logs/4942824/raw_inline

Antonin

--
Antonin Godard, Bootlin
Embedded Linux and Kernel engineering