| Message ID | 20260313155920.2347101-8-Harish.Sadineni@windriver.com |
|---|---|
| State | Accepted, archived |
| Commit | d80d006ae85172eb5125b7e1b44d4dee48615c92 |
| Headers | show |
| Series | Enable rust support for linux kernel | expand |
On Fri, 2026-03-13 at 08:59 -0700, Harish.Sadineni@windriver.com wrote: > From: Harish Sadineni <Harish.Sadineni@windriver.com> > > 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) > > Linux rust build infrastructure does not currently support ccache (Opened bug[0]). > > Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc > expect a path (and not a command) > > Disable ccache if KERNEL_RUST_SUPPORT is 'True' for kernel and kernel module builds, including > auxiliary tooling such as make-mod-scripts. > > More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 > > [0]: https://github.com/Rust-for-Linux/linux/issues/1224 > > Co-developed-by: Yoann Congal <yoann.congal@smile.fr> > Signed-off-by: El Mehdi YOUNES <elmehdi.younes@smile.fr> > Cc: Alban MOIZAN <alban.moizan@smile.fr> > Signed-off-by: Yoann Congal <yoann.congal@smile.fr> > Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com> > --- > meta/classes-recipe/kernel-yocto-rust.bbclass | 7 +++++++ > .../make-mod-scripts/make-mod-scripts_1.0.bb | 7 +++++++ > 2 files changed, 14 insertions(+) > > diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass > index fd9ee91c79..608ccc4609 100644 > --- a/meta/classes-recipe/kernel-yocto-rust.bbclass > +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass > @@ -16,3 +16,10 @@ do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}" > do_kernel_configme:append () { > oe_runmake -C ${S} O=${B} rustavailable > } > + > +# Linux rust build infrastructure does not currently support ccache > +# see https://github.com/Rust-for-Linux/linux/issues/1224 > +# Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc expect a path (and not a command) > +# More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 > +# Disable ccache for kernel build if kernel rust support is enabled to workaround this. > +CCACHE_DISABLE ?= "1" > diff --git a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb > index 874e16e642..5fbc5c2154 100644 > --- a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb > +++ b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb > @@ -36,3 +36,10 @@ do_configure() { > -C ${STAGING_KERNEL_DIR} O=${STAGING_KERNEL_BUILDDIR} $t > done > } > + > +# Linux rust build infrastructure does not currently support ccache > +# see https://github.com/Rust-for-Linux/linux/issues/1224 > +# Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc expect a path (and not a command) > +# More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 > +# Disable ccache for kernel build if kernel rust support is enabled to workaround this > +CCACHE_DISABLE ?= "{@bb.utils.contains('KERNEL_FEATURES', 'rust', "1", "0", d)}" This fails to run, it is missing a '$'. No need to resend, I've fixed in what I'm testing on master-next. Cheers, Richard
diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass index fd9ee91c79..608ccc4609 100644 --- a/meta/classes-recipe/kernel-yocto-rust.bbclass +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass @@ -16,3 +16,10 @@ do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}" do_kernel_configme:append () { oe_runmake -C ${S} O=${B} rustavailable } + +# Linux rust build infrastructure does not currently support ccache +# see https://github.com/Rust-for-Linux/linux/issues/1224 +# Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc expect a path (and not a command) +# More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 +# Disable ccache for kernel build if kernel rust support is enabled to workaround this. +CCACHE_DISABLE ?= "1" diff --git a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb index 874e16e642..5fbc5c2154 100644 --- a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb +++ b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb @@ -36,3 +36,10 @@ do_configure() { -C ${STAGING_KERNEL_DIR} O=${STAGING_KERNEL_BUILDDIR} $t done } + +# Linux rust build infrastructure does not currently support ccache +# see https://github.com/Rust-for-Linux/linux/issues/1224 +# Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc expect a path (and not a command) +# More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 +# Disable ccache for kernel build if kernel rust support is enabled to workaround this +CCACHE_DISABLE ?= "{@bb.utils.contains('KERNEL_FEATURES', 'rust', "1", "0", d)}"