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[v8,03/14] kernel-yocto-rust: enable Rust kernel support via 'make rustavailable'.

Message ID 20260309174346.3384212-4-Harish.Sadineni@windriver.com
State Under Review
Headers show
Series Enable rust support for linux kernel | expand

Commit Message

Harish Sadineni March 9, 2026, 5:43 p.m. UTC 
From: Harish Sadineni <Harish.Sadineni@windriver.com>

This change adds support for Rust-enabled kernel builds by:

-Extending do_kernel_configme dependencies to include rust-native,
 clang-native, and bindgen-cli-native.

-Invoking make rustavailable during do_kernel_configme() to prepare the
 kernel build environment for Rust.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 meta/classes-recipe/kernel-yocto-rust.bbclass | 12 ++++++++++++
 meta/classes-recipe/kernel-yocto.bbclass      |  2 ++
 2 files changed, 14 insertions(+)
 create mode 100644 meta/classes-recipe/kernel-yocto-rust.bbclass
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Patch

diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass
new file mode 100644
index 0000000000..7acc81764f
--- /dev/null
+++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
@@ -0,0 +1,12 @@ 
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+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}"
+
+do_kernel_configme:append () {
+        oe_runmake -C ${S} O=${B} rustavailable
+}
diff --git a/meta/classes-recipe/kernel-yocto.bbclass b/meta/classes-recipe/kernel-yocto.bbclass
index e53bf15194..00271e466b 100644
--- a/meta/classes-recipe/kernel-yocto.bbclass
+++ b/meta/classes-recipe/kernel-yocto.bbclass
@@ -4,6 +4,8 @@ 
 # SPDX-License-Identifier: MIT
 #
 
+inherit_defer ${@'kernel-yocto-rust' if bb.utils.to_boolean(d.getVar('KERNEL_RUST_SUPPORT')) else ''}
+
 # remove tasks that modify the source tree in case externalsrc is inherited
 SRCTREECOVEREDTASKS += "do_validate_branches do_kernel_configcheck do_kernel_checkout do_fetch do_unpack do_patch"
 PATCH_GIT_USER_EMAIL ?= "kernel-yocto@oe"