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[RFC,2/5] module.bbclass: Prepare out-of-tree rust module compilation

Message ID 20251119195540.2671856-3-yoann.congal@smile.fr
State New
Headers show
Series Kernel Rust out-of-tree module support | expand

Commit Message

Yoann Congal Nov. 19, 2025, 7:55 p.m. UTC 
From: Yoann Congal <yoann.congal@smile.fr>

Conditioned to the "rust-linux" DISTRO_FEATURES:
* Add dependency to rust-native
* Remap ${S} in compiled output to avoid buildpath errors

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
---
 meta/classes-recipe/module.bbclass | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/meta/classes-recipe/module.bbclass b/meta/classes-recipe/module.bbclass
index 4948e995c5d..7dbd4194d17 100644
--- a/meta/classes-recipe/module.bbclass
+++ b/meta/classes-recipe/module.bbclass
@@ -87,3 +87,11 @@  EXPORT_FUNCTIONS do_compile do_install
 KERNEL_MODULES_META_PACKAGE = "${PN}"
 FILES:${PN} = ""
 ALLOW_EMPTY:${PN} = "1"
+
+# Rust module support
+DEPENDS += "${@bb.utils.contains('DISTRO_FEATURES', 'rust-kernel', 'rust-native', '', d)}"
+
+RUST_DEBUG_REMAP ?= "--remap-path-prefix=${S}=${TARGET_DBGSRC_DIR}"
+KRUSTFLAGS:append = " ${RUST_DEBUG_REMAP}"
+EXTRA_OEMAKE:append = " ${@bb.utils.contains('DISTRO_FEATURES', 'rust-kernel', \
+                                             ' KRUSTFLAGS="${KRUSTFLAGS}"', '',d)}"