kernel-yocto-rust: Fix for buildpaths errors when rust is enabled for kernel

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>

diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass
index 7acc81764ffe4c48131b4f7ed74794d16299debd..fd9ee91c7923d89de1708bf9d577dd0025e79e17 100644 (file)
--- 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}"