[PATCH v7 05/14] kernel-yocto-rust: Fix for buildpaths errors when rust is enabled for kernel

Harish.Sadineni
2026-03-04T17:44:19Z

From: Harish Sadineni <Harish.Sadineni@windriver.com>

Fixes for buildpaths errors after enabling rust for linux-kernel

-Introduced KRUSTFLAGS to pass `--remap-path-prefix` to rustc while
building kernel with rust support.

Co-authored-by: El Mehdi YOUNES <elmehdi.younes@smile.fr>
Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
meta/classes-recipe/kernel-yocto-rust.bbclass | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass
index 7acc81764f..fd9ee91c79 100644
--- a/meta/classes-recipe/kernel-yocto-rust.bbclass
+++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
@@ -4,6 +4,12 @@
# SPDX-License-Identifier: MIT
#

+RUST_DEBUG_REMAP = "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR} \
+ --remap-path-prefix=${TMPDIR}/work-shared=${TARGET_DBGSRC_DIR} \
+"
+KRUSTFLAGS = " ${RUST_DEBUG_REMAP}"
+EXTRA_OEMAKE:append = " KRUSTFLAGS='${KRUSTFLAGS}'"
+
RUST_KERNEL_TASK_DEPENDS ?= "rust-native:do_populate_sysroot clang-native:do_populate_sysroot bindgen-cli-native:do_populate_sysroot"
do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}"

--
2.49.0