From: Harish Sadineni <[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)
Linux rust build infrastructure does not currently support ccache (Opened bug[0]). Quick summary: There are 2 issues: $HOSTCC is not escaped and rustc expect a path (and not a command) Disable ccache if KERNEL_RUST_SUPPORT is 'True' for kernel and kernel module builds, including auxiliary tooling such as make-mod-scripts. More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 [0]: https://github.com/Rust-for-Linux/linux/issues/1224 Co-developed-by: Yoann Congal <[email protected]> Signed-off-by: El Mehdi YOUNES <[email protected]> Cc: Alban MOIZAN <[email protected]> Signed-off-by: Yoann Congal <[email protected]> Signed-off-by: Harish Sadineni <[email protected]> --- meta/classes-recipe/kernel-yocto-rust.bbclass | 7 +++++++ .../make-mod-scripts/make-mod-scripts_1.0.bb | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass index fd9ee91c79..608ccc4609 100644 --- a/meta/classes-recipe/kernel-yocto-rust.bbclass +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass @@ -16,3 +16,10 @@ do_kernel_configme[depends] += "${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..6226382001 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_RUST_SUPPORT', 'True', '1', '0', d)}" -- 2.49.0
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