Re: [OE-core] [PATCH v4 00/16] Enable rust support for linux kernel

["Antonin Godard" <antonin.godard@bootlin.com>]

Hi,

On Thu Jan 22, 2026 at 12:53 PM CET, Harish via lists.openembedded.org Sadineni wrote:
>
> On 1/21/2026 8:46 PM, Antonin Godard wrote:
>> CAUTION: This email comes from a non Wind River email account!
>> Do not click links or open attachments unless you recognize the sender and know the content is safe.
>>
>> Hi,
>>
>> On Tue Jan 20, 2026 at 7:41 PM CET, Harish via lists.openembedded.org Sadineni wrote:
>>> This patch series was tested on Autobuilder:
>>> https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/3193
>>> https://autobuilder.yoctoproject.org/valkyrie/#/builders/35/builds/3056
>> Thanks for your efforts on this. However I think it triggers issues in other
>> builders as you can see from this a-full run (a-full is the complete Autobuilder
>> testing run):
>>
>> https://autobuilder.yoctoproject.org/valkyrie/#/builders/29/builds/3101
>>
>> For example, the first failure in the list (beaglebone builder):
>>
>> | error: linking with `/srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/work/x86_64-nativesdk-pokysdk-linux/nativesdk-rust/1.92.0/wrapper/build-rust-ccld` failed: exit status: 1
>> |   |
>> |   = note:  "/srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/work/x86_64-nativesdk-pokysdk-linux/nativesdk-rust/1.92.0/wrapper/build-rust-ccld" "-m64" "/tmp/rustcBDQQCc/symbols.o" "<75 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcBDQQCc/raw-dylibs" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/work/x86_64-nativesdk-pokysdk-linux/nativesdk-rust/1.92.0/recipe-sysroot/usr/local/oe-sdk-hardcoded-buildpath/sysroots/x86_64-pokysdk-linux/usr/lib" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/work/x86_64-nativesdk-pokysdk-linux/nativesdk-rust/1.92.0/sources/rustc-1.92.0-src/build/bootstrap/debug/deps/rustdoc-92c720c010da8c74" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" "-lz" "-lzstd"
>> |   = note: some arguments are omitted. use `--verbose` to show all linker arguments
>> |   = note: /srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/hosttools/ld: cannot find /usr/local/oe-sdk-hardcoded-buildpath/sysroots/x86_64-pokysdk-linux/lib/libm.so.6: No such file or directory
>> |           /srv/pokybuild/yocto-worker/beaglebone/build/build/tmp/hosttools/ld: cannot find /usr/local/oe-sdk-hardcoded-buildpath/sysroots/x86_64-pokysdk-linux/lib/libmvec.so.1: No such file or directory
>> |           collect2: error: ld returned 1 exit status
>>
>>
>> https://autobuilder.yoctoproject.org/valkyrie/#/builders/2/builds/3084
>> https://autobuilder.yoctoproject.org/valkyrie/api/v2/logs/5052191/raw_inline
>>
>> Can you have a look at these failures?
> Thanks for reporting this.
> The error indicates that the linker is unable to locate libm.so.6 and 
> libmvec.so.6 in the recipe sysroot.
> These libraries are normally provided by glibc, and this issue does not 
> appear to be caused by our patches, as we are not able to reproduce it 
> locally.
> Could you please re-test the series once more to confirm?
>
> Thanks,
> Harish

Ok, thanks for testing again on your side. It may have been related to another
commit on my branch as I'm not facing the issues again. I'll re-add the series
to my branch - sorry for the false alarm!

Antonin

-- 
Antonin Godard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com