[PATCH v2 1/4] packagegroups: Add packagegroup-core-buildessential-rust

[PATCH v2 1/4] packagegroups: Add packagegroup-core-buildessential-rust

[Harish.Sadineni]

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

Introduce packagegroup-core-buildessential-rust to provide the
on-target dependencies required for building Rust-based kernel
modules, including the Rust toolchain, bindgen, and libclang.

Set PACKAGE_ARCH to TUNE_PKGARCH instead of the packagegroup
default of "all", since libclang is dynamically renamed per
build (e.g. libclang22.1), which is incompatible with an
allarch packagegroup.

On riscv64, also pull in clang, lld, and llvm-bin, since rust
support in the kernel on riscv64 requires the LLVM/Clang
toolchain rather than gcc.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 .../packagegroup-core-buildessential-rust.bb  | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 meta/recipes-core/packagegroups/packagegroup-core-buildessential-rust.bb

diff --git a/meta/recipes-core/packagegroups/packagegroup-core-buildessential-rust.bb b/meta/recipes-core/packagegroups/packagegroup-core-buildessential-rust.bb
new file mode 100644
index 0000000000..c1993af9aa
--- /dev/null
+++ b/meta/recipes-core/packagegroups/packagegroup-core-buildessential-rust.bb
@@ -0,0 +1,23 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+SUMMARY = "Essential build dependencies for building rust kernel modules in image"
+
+PACKAGE_ARCH = "${TUNE_PKGARCH}"
+
+inherit packagegroup
+
+RDEPENDS:${PN} = "\
+    bindgen-cli \
+    libclang \
+    rust \
+    rust-src-lib \
+    rust-tools-rustfmt \
+"
+
+RDEPENDS:${PN}:append:riscv64 = "\
+    clang \
+    lld \
+    llvm-bin \
+"
-- 
2.51.0

[PATCH v2 2/4] packagegroups: add nativesdk-packagegroup-sdk-host-rust

[Harish.Sadineni]

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

Add a new nativesdk packagegroup providing the dependencies needed to
build external/out-of-tree rust modules in sdk.

Set PACKAGE_ARCH to TUNE_PKGARCH instead of the packagegroup
default of "all", since nativesdk-libclang is dynamically
renamed per build (e.g. nativesdk-libclang22.1), which is
incompatible with an allarch packagegroup.

Add this to TOOLCHAIN_HOST_TASK to include it in the SDK.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 .../nativesdk-packagegroup-sdk-host-rust.bb      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb

diff --git a/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
new file mode 100644
index 0000000000..b10d420acd
--- /dev/null
+++ b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
@@ -0,0 +1,16 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+SUMMARY = "Dependent packages for building external rust modules"
+
+PACKAGE_ARCH = "${TUNE_PKGARCH}"
+
+inherit packagegroup
+inherit_defer nativesdk
+
+RDEPENDS:${PN} = "\
+    nativesdk-rust-src-lib \
+    nativesdk-bindgen-cli \
+    nativesdk-libclang \
+"
-- 
2.51.0

Re: [PATCH v2 2/4] packagegroups: add nativesdk-packagegroup-sdk-host-rust

[Paul Barker]

[-- Attachment #1: Type: text/plain, Size: 1795 bytes --]

On Fri, 2026-07-17 at 06:01 -0700, Harish.Sadineni@windriver.com wrote:
> From: Harish Sadineni <Harish.Sadineni@windriver.com>
> 
> Add a new nativesdk packagegroup providing the dependencies needed to
> build external/out-of-tree rust modules in sdk.
> 
> Set PACKAGE_ARCH to TUNE_PKGARCH instead of the packagegroup
> default of "all", since nativesdk-libclang is dynamically
> renamed per build (e.g. nativesdk-libclang22.1), which is
> incompatible with an allarch packagegroup.
> 
> Add this to TOOLCHAIN_HOST_TASK to include it in the SDK.
> 
> Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
> ---
>  .../nativesdk-packagegroup-sdk-host-rust.bb      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>  create mode 100644 meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
> 
> diff --git a/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
> new file mode 100644
> index 0000000000..b10d420acd
> --- /dev/null
> +++ b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
> @@ -0,0 +1,16 @@
> +#
> +# SPDX-License-Identifier: MIT
> +#
> +
> +SUMMARY = "Dependent packages for building external rust modules"
> +
> +PACKAGE_ARCH = "${TUNE_PKGARCH}"
> +
> +inherit packagegroup
> +inherit_defer nativesdk
> +
> +RDEPENDS:${PN} = "\
> +    nativesdk-rust-src-lib \
> +    nativesdk-bindgen-cli \
> +    nativesdk-libclang \
> +"

Hi Harish,

We've merged this patch but did have a follow-up question: should this
packagegroup include dependencies on nativesdk-rustc and
nativesdk-rust-tools-rustfmt? If so, please send a new patch to add
them.

Best regards,

-- 
Paul Barker


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Re: [PATCH v2 2/4] packagegroups: add nativesdk-packagegroup-sdk-host-rust

[Harish Sadineni]

On 24-07-2026 07:43 pm, Paul Barker wrote:
> On Fri, 2026-07-17 at 06:01 -0700, Harish.Sadineni@windriver.com wrote:
>> From: Harish Sadineni <Harish.Sadineni@windriver.com>
>>
>> Add a new nativesdk packagegroup providing the dependencies needed to
>> build external/out-of-tree rust modules in sdk.
>>
>> Set PACKAGE_ARCH to TUNE_PKGARCH instead of the packagegroup
>> default of "all", since nativesdk-libclang is dynamically
>> renamed per build (e.g. nativesdk-libclang22.1), which is
>> incompatible with an allarch packagegroup.
>>
>> Add this to TOOLCHAIN_HOST_TASK to include it in the SDK.
>>
>> Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
>> ---
>>   .../nativesdk-packagegroup-sdk-host-rust.bb      | 16 ++++++++++++++++
>>   1 file changed, 16 insertions(+)
>>   create mode 100644 meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
>>
>> diff --git a/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
>> new file mode 100644
>> index 0000000000..b10d420acd
>> --- /dev/null
>> +++ b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-rust.bb
>> @@ -0,0 +1,16 @@
>> +#
>> +# SPDX-License-Identifier: MIT
>> +#
>> +
>> +SUMMARY = "Dependent packages for building external rust modules"
>> +
>> +PACKAGE_ARCH = "${TUNE_PKGARCH}"
>> +
>> +inherit packagegroup
>> +inherit_defer nativesdk
>> +
>> +RDEPENDS:${PN} = "\
>> +    nativesdk-rust-src-lib \
>> +    nativesdk-bindgen-cli \
>> +    nativesdk-libclang \
>> +"
> Hi Harish,
>
> We've merged this patch but did have a follow-up question: should this
> packagegroup include dependencies on nativesdk-rustc and
> nativesdk-rust-tools-rustfmt? If so, please send a new patch to add
> them.

Hi Paul,

nativesdk-rust and nativesdk-rust-tools-rustfmt will be added into SDK 
with 'packagegroup-rust-cross-canadian'.
And, this packagegroup-rust-cross-canadian is not added here in this 
package group since it will be pulled by SDK_TOOLCHAIN_LANGS = "rust"

Thanks,
Harish

>
> Best regards,
>

[PATCH v2 3/4] packagegroups: add nativesdk-packagegroup-sdk-host-clang

[Harish.Sadineni]

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

Add a new nativesdk packagegroup providing the clang, lld, and
llvm-bin dependencies needed to build external/out-of-tree
modules in the SDK using the LLVM/Clang toolchain.

Rust support in the kernel on riscv64 requires the LLVM/Clang
toolchain rather than gcc, so this packagegroup is intended to
be added alongside nativesdk-packagegroup-sdk-rust when the SDK
targets riscv64.

Add this to TOOLCHAIN_HOST_TASK to include it in the SDK.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 .../nativesdk-packagegroup-sdk-host-clang.bb       | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-clang.bb

diff --git a/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-clang.bb b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-clang.bb
new file mode 100644
index 0000000000..d6ee2120cf
--- /dev/null
+++ b/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host-clang.bb
@@ -0,0 +1,14 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+SUMMARY = "Dependent packages for building external kernel modules using clang"
+
+inherit packagegroup
+inherit_defer nativesdk
+
+RDEPENDS:${PN} = "\
+    nativesdk-clang \
+    nativesdk-lld \
+    nativesdk-llvm-bin \
+"
-- 
2.51.0

[PATCH v2 4/4] populate_sdk_base: add kernel-devsrc via SDK_TOOLCHAIN_LANGS

[Harish.Sadineni]

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

Add a new "kernel" value for SDK_TOOLCHAIN_LANGS that pulls
kernel-devsrc into TOOLCHAIN_TARGET_TASK. This allows kernel
development headers/sources to be included in the SDK.

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 meta/classes-recipe/populate_sdk_base.bbclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/classes-recipe/populate_sdk_base.bbclass b/meta/classes-recipe/populate_sdk_base.bbclass
index b427ff2761..1d9faecc16 100644
--- a/meta/classes-recipe/populate_sdk_base.bbclass
+++ b/meta/classes-recipe/populate_sdk_base.bbclass
@@ -80,6 +80,7 @@ TOOLCHAIN_TARGET_TASK ?= " \
     ${@multilib_pkg_extend(d, 'packagegroup-core-standalone-sdk-target')} \
     ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'go', multilib_pkg_extend(d, 'packagegroup-go-sdk-target'), '', d)} \
     ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'rust', multilib_pkg_extend(d, 'libstd-rs'), '', d)} \
+    ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'kernel', 'kernel-devsrc', '', d)} \
     target-sdk-provides-dummy \
 "
 TOOLCHAIN_TARGET_TASK_ATTEMPTONLY ?= ""
-- 
2.51.0