On Wed, 2026-02-04 at 13:31 +0100, Yoann Congal wrote: > On Wed Feb 4, 2026 at 1:05 PM CET, Paul Barker wrote: > > On Thu, 2026-01-29 at 08:39 -0800, Sadineni, Harish via > > lists.openembedded.org wrote: > > > From: Yoann Congal <[email protected]> > > > > > > Currently, a ccache enabled build fails with: > > > | HOSTRUSTC scripts/generate_rust_target > > > | HOSTCC scripts/kallsyms > > > | HOSTCC scripts/sorttable > > > | HOSTCC scripts/asn1_compiler > > > | TOUCH include/generated/gcc-plugins.h > > > | DESCEND objtool > > > | error: multiple input filenames provided (first two filenames are gcc > > > and > > > .../tmp/work-shared/qemux86-64/kernel-source/scripts/generate_rust_target.rs) > > > > > > when using ccache, value of "HOSTCC=cache gcc" when this value is passing > > > to rustc, It is thinking gcc is a input file. when ccache is not used > > > "HOSTCC=gcc" is passed. > > > > > > Disable ccache for kernel build if rust-kernel is enabled to workaround > > > this. > > > > > > Signed-off-by: El Mehdi YOUNES <[email protected]> > > > Signed-off-by: Yoann Congal <[email protected]> > > > Signed-off-by: Harish Sadineni <[email protected]> > > > > This patch is good, but we should try to get the issue resolved upstream > > if we can so that ccache can be used. > > > > Has this been reported upstream yet? Could you also open a bug in our > > bugzilla to track this? > > Hello, > > For context, a lengthy discussion happened on this patch here: > https://lore.kernel.org/openembedded-core/ca+tgqk9yd2wwkrhmkhoff-8n0cescsefwd2dxr4sbo9fdqx...@mail.gmail.com/t/#u > > And, sadly, we lack resources at the moment on our side to follow-up on this > :-/
Putting some links alongside this to more details would probably at least help a bit, particularly if ccache upstream documents it is imcompatible with rust... Cheers, Richard
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