[PATCH] kernel-yocto-rust: Move rust kernel dependencies to bbclass

[PATCH] kernel-yocto-rust: Move rust kernel dependencies to bbclass

[Harish.Sadineni]

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

Move the rust kernel dpendencies from linux-yocto.inc to
kernel-yocto-rust.bbclass.

This centralizes Rust-specific configuration in the dedicated class,
which is intended to be inherited only when Rust kernel support is
enabled (e.g. via KERNEL_FEATURES).

Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
---
 meta/classes-recipe/kernel-yocto-rust.bbclass | 2 ++
 meta/recipes-kernel/linux/linux-yocto.inc     | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass
index 608ccc4609..49f2bfc1ae 100644
--- a/meta/classes-recipe/kernel-yocto-rust.bbclass
+++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
@@ -10,6 +10,8 @@ RUST_DEBUG_REMAP = "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR} \
 KRUSTFLAGS = " ${RUST_DEBUG_REMAP}"
 EXTRA_OEMAKE:append = " KRUSTFLAGS='${KRUSTFLAGS}'"
 
+RUST_KERNEL_DEPENDS ?= "clang-native rust-native bindgen-cli-native"
+DEPENDS += "${RUST_KERNEL_DEPENDS}"
 RUST_KERNEL_TASK_DEPENDS ?=  "rust-native:do_populate_sysroot clang-native:do_populate_sysroot bindgen-cli-native:do_populate_sysroot"
 do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}"
 
diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc
index f47873348a..4e230d405a 100644
--- a/meta/recipes-kernel/linux/linux-yocto.inc
+++ b/meta/recipes-kernel/linux/linux-yocto.inc
@@ -81,8 +81,6 @@ KERNEL_DEBUG ?= ""
 DEPENDS += '${@bb.utils.contains_any("ARCH", [ "x86", "arm64", "powerpc" ], "elfutils-native", "", d)}'
 DEPENDS += "openssl-native util-linux-native"
 DEPENDS += "gmp-native libmpc-native"
-RUST_KERNEL_DEPENDS ?= "${@bb.utils.contains('KERNEL_FEATURES', 'rust', 'clang-native rust-native bindgen-cli-native', '', d)}"
-DEPENDS += "${RUST_KERNEL_DEPENDS}"
 
 # Some options depend on CONFIG_PAHOLE_VERSION, so need to make pahole-native available before do_kernel_configme
 do_kernel_configme[depends] += '${@bb.utils.contains("KERNEL_DEBUG", "True", "pahole-native:do_populate_sysroot", "", d)}'
-- 
2.49.0

Re: [OE-core] [PATCH] kernel-yocto-rust: Move rust kernel dependencies to bbclass

[Jose Quaresma]

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Sadineni, Harish via lists.openembedded.org <Harish.Sadineni=
windriver.com@lists.openembedded.org> escreveu (terça, 17/03/2026 à(s)
18:08):

> From: Harish Sadineni <Harish.Sadineni@windriver.com>
>
> Move the rust kernel dpendencies from linux-yocto.inc to
> kernel-yocto-rust.bbclass.
>
> This centralizes Rust-specific configuration in the dedicated class,
> which is intended to be inherited only when Rust kernel support is
> enabled (e.g. via KERNEL_FEATURES).
>
> Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
> ---
>  meta/classes-recipe/kernel-yocto-rust.bbclass | 2 ++
>  meta/recipes-kernel/linux/linux-yocto.inc     | 2 --
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass
> b/meta/classes-recipe/kernel-yocto-rust.bbclass
> index 608ccc4609..49f2bfc1ae 100644
> --- a/meta/classes-recipe/kernel-yocto-rust.bbclass
> +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
> @@ -10,6 +10,8 @@ RUST_DEBUG_REMAP =
> "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR} \
>  KRUSTFLAGS = " ${RUST_DEBUG_REMAP}"
>  EXTRA_OEMAKE:append = " KRUSTFLAGS='${KRUSTFLAGS}'"
>
> +RUST_KERNEL_DEPENDS ?= "clang-native rust-native bindgen-cli-native"
> +DEPENDS += "${RUST_KERNEL_DEPENDS}"
>

Any special reason to have this RUST_KERNEL_DEPENDS variable? It is not
used anywhere else.
I wonder if just the DEPENDS could be used directly.

Jose


>  RUST_KERNEL_TASK_DEPENDS ?=  "rust-native:do_populate_sysroot
> clang-native:do_populate_sysroot bindgen-cli-native:do_populate_sysroot"
>  do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}"
>
> diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
> b/meta/recipes-kernel/linux/linux-yocto.inc
> index f47873348a..4e230d405a 100644
> --- a/meta/recipes-kernel/linux/linux-yocto.inc
> +++ b/meta/recipes-kernel/linux/linux-yocto.inc
> @@ -81,8 +81,6 @@ KERNEL_DEBUG ?= ""
>  DEPENDS += '${@bb.utils.contains_any("ARCH", [ "x86", "arm64", "powerpc"
> ], "elfutils-native", "", d)}'
>  DEPENDS += "openssl-native util-linux-native"
>  DEPENDS += "gmp-native libmpc-native"
> -RUST_KERNEL_DEPENDS ?= "${@bb.utils.contains('KERNEL_FEATURES', 'rust',
> 'clang-native rust-native bindgen-cli-native', '', d)}"
> -DEPENDS += "${RUST_KERNEL_DEPENDS}"
>
>  # Some options depend on CONFIG_PAHOLE_VERSION, so need to make
> pahole-native available before do_kernel_configme
>  do_kernel_configme[depends] += '${@bb.utils.contains("KERNEL_DEBUG",
> "True", "pahole-native:do_populate_sysroot", "", d)}'
> --
> 2.49.0
>
>
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>

-- 
Best regards,

José Quaresma

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Re: [OE-core] [PATCH] kernel-yocto-rust: Move rust kernel dependencies to bbclass

[Harish Sadineni]

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On 3/18/2026 1:31 AM, Jose Quaresma wrote:
> **
> *CAUTION: This email comes from a non Wind River email account!*
> Do not click links or open attachments unless you recognize the sender 
> and know the content is safe.
>
>
> Sadineni, Harish via lists.openembedded.org 
> <https://urldefense.com/v3/__http://lists.openembedded.org__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B_kjeB1qQ$> 
> <Harish.Sadineni=windriver.com@lists.openembedded.org> escreveu 
> (terça, 17/03/2026 à(s) 18:08):
>
>     From: Harish Sadineni <Harish.Sadineni@windriver.com>
>
>     Move the rust kernel dpendencies from linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>     to
>     kernel-yocto-rust.bbclass.
>
>     This centralizes Rust-specific configuration in the dedicated class,
>     which is intended to be inherited only when Rust kernel support is
>     enabled (e.g. via KERNEL_FEATURES).
>
>     Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
>     ---
>      meta/classes-recipe/kernel-yocto-rust.bbclass | 2 ++
>      meta/recipes-kernel/linux/linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$> 
>        | 2 --
>      2 files changed, 2 insertions(+), 2 deletions(-)
>
>     diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass
>     b/meta/classes-recipe/kernel-yocto-rust.bbclass
>     index 608ccc4609..49f2bfc1ae 100644
>     --- a/meta/classes-recipe/kernel-yocto-rust.bbclass
>     +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
>     @@ -10,6 +10,8 @@ RUST_DEBUG_REMAP =
>     "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR} \
>      KRUSTFLAGS = " ${RUST_DEBUG_REMAP}"
>      EXTRA_OEMAKE:append = " KRUSTFLAGS='${KRUSTFLAGS}'"
>
>     +RUST_KERNEL_DEPENDS ?= "clang-native rust-native bindgen-cli-native"
>     +DEPENDS += "${RUST_KERNEL_DEPENDS}"
>
>
> Any special reason to have this RUST_KERNEL_DEPENDS variable? It is 
> not used anywhere else.
> I wonder if just the DEPENDS could be used directly.

In earlier revisions, Bruce suggested keeping these dependencies in a 
variable assigned with ?=.
This approach makes it easier to customize them from bbappends and 
related use cases.

Thanks,
Harish

>
> Jose
>
>      RUST_KERNEL_TASK_DEPENDS ?= "rust-native:do_populate_sysroot
>     clang-native:do_populate_sysroot
>     bindgen-cli-native:do_populate_sysroot"
>      do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}"
>
>     diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>     b/meta/recipes-kernel/linux/linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>     index f47873348a..4e230d405a 100644
>     --- a/meta/recipes-kernel/linux/linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>     +++ b/meta/recipes-kernel/linux/linux-yocto.inc
>     <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>     @@ -81,8 +81,6 @@ KERNEL_DEBUG ?= ""
>      DEPENDS += '${@bb.utils.contains_any("ARCH", [ "x86", "arm64",
>     "powerpc" ], "elfutils-native", "", d)}'
>      DEPENDS += "openssl-native util-linux-native"
>      DEPENDS += "gmp-native libmpc-native"
>     -RUST_KERNEL_DEPENDS ?= "${@bb.utils.contains('KERNEL_FEATURES',
>     'rust', 'clang-native rust-native bindgen-cli-native', '', d)}"
>     -DEPENDS += "${RUST_KERNEL_DEPENDS}"
>
>      # Some options depend on CONFIG_PAHOLE_VERSION, so need to make
>     pahole-native available before do_kernel_configme
>      do_kernel_configme[depends] +=
>     '${@bb.utils.contains("KERNEL_DEBUG", "True",
>     "pahole-native:do_populate_sysroot", "", d)}'
>     -- 
>     2.49.0
>
>
>     -=-=-=-=-=-=-=-=-=-=-=-
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>     -=-=-=-=-=-=-=-=-=-=-=-
>
>
>
> -- 
> Best regards,
>
> José Quaresma

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Re: [OE-core] [PATCH] kernel-yocto-rust: Move rust kernel dependencies to bbclass

[Bruce Ashfield]

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On Wed, Mar 18, 2026 at 1:36 AM Sadineni, Harish via lists.openembedded.org
<Harish.Sadineni=windriver.com@lists.openembedded.org> wrote:

>
> On 3/18/2026 1:31 AM, Jose Quaresma wrote:
>
> *CAUTION: This email comes from a non Wind River email account!*
> Do not click links or open attachments unless you recognize the sender and
> know the content is safe.
>
>
> Sadineni, Harish via lists.openembedded.org
> <https://urldefense.com/v3/__http://lists.openembedded.org__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B_kjeB1qQ$>
> <Harish.Sadineni=windriver.com@lists.openembedded.org> escreveu (terça,
> 17/03/2026 à(s) 18:08):
>
>> From: Harish Sadineni <Harish.Sadineni@windriver.com>
>>
>> Move the rust kernel dpendencies from linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>> to
>> kernel-yocto-rust.bbclass.
>>
>> This centralizes Rust-specific configuration in the dedicated class,
>> which is intended to be inherited only when Rust kernel support is
>> enabled (e.g. via KERNEL_FEATURES).
>>
>> Signed-off-by: Harish Sadineni <Harish.Sadineni@windriver.com>
>> ---
>>  meta/classes-recipe/kernel-yocto-rust.bbclass | 2 ++
>>  meta/recipes-kernel/linux/linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>>    | 2 --
>>  2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass
>> b/meta/classes-recipe/kernel-yocto-rust.bbclass
>> index 608ccc4609..49f2bfc1ae 100644
>> --- a/meta/classes-recipe/kernel-yocto-rust.bbclass
>> +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass
>> @@ -10,6 +10,8 @@ RUST_DEBUG_REMAP =
>> "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR} \
>>  KRUSTFLAGS = " ${RUST_DEBUG_REMAP}"
>>  EXTRA_OEMAKE:append = " KRUSTFLAGS='${KRUSTFLAGS}'"
>>
>> +RUST_KERNEL_DEPENDS ?= "clang-native rust-native bindgen-cli-native"
>> +DEPENDS += "${RUST_KERNEL_DEPENDS}"
>>
>
> Any special reason to have this RUST_KERNEL_DEPENDS variable? It is not
> used anywhere else.
> I wonder if just the DEPENDS could be used directly.
>
> In earlier revisions, Bruce suggested keeping these dependencies in a
> variable assigned with ?=.
> This approach makes it easier to customize them from bbappends and related
> use cases.
>
>
Yes, exactly. This allows us (or someone like myself specifically) to
easily override the
behaviour without a :remove

Bruce



> Thanks,
> Harish
>
>
> Jose
>
>
>>  RUST_KERNEL_TASK_DEPENDS ?=  "rust-native:do_populate_sysroot
>> clang-native:do_populate_sysroot bindgen-cli-native:do_populate_sysroot"
>>  do_kernel_configme[depends] += "${RUST_KERNEL_TASK_DEPENDS}"
>>
>> diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>> b/meta/recipes-kernel/linux/linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>> index f47873348a..4e230d405a 100644
>> --- a/meta/recipes-kernel/linux/linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>> +++ b/meta/recipes-kernel/linux/linux-yocto.inc
>> <https://urldefense.com/v3/__http://linux-yocto.inc__;!!AjveYdw8EvQ!b2ICl_fijVSH2wVxqIv7GAO9M7s8y2roM4-SddwJPX71oFS2SfJg3Nz-LU_TqwuhSgmRgNbFlqz30xa1maTf9B9txvlTIQ$>
>> @@ -81,8 +81,6 @@ KERNEL_DEBUG ?= ""
>>  DEPENDS += '${@bb.utils.contains_any("ARCH", [ "x86", "arm64", "powerpc"
>> ], "elfutils-native", "", d)}'
>>  DEPENDS += "openssl-native util-linux-native"
>>  DEPENDS += "gmp-native libmpc-native"
>> -RUST_KERNEL_DEPENDS ?= "${@bb.utils.contains('KERNEL_FEATURES', 'rust',
>> 'clang-native rust-native bindgen-cli-native', '', d)}"
>> <$%7B@bb.utils.contains('KERNEL_FEATURES','rust','clang-nativerust-nativebindgen-cli-native','',d)%7D>
>> -DEPENDS += "${RUST_KERNEL_DEPENDS}"
>>
>>  # Some options depend on CONFIG_PAHOLE_VERSION, so need to make
>> pahole-native available before do_kernel_configme
>>  do_kernel_configme[depends] += '${@bb.utils.contains("KERNEL_DEBUG",
>> "True", "pahole-native:do_populate_sysroot", "", d)}'
>> --
>> 2.49.0
>>
>>
>>
>>
>>
>
> --
> Best regards,
>
> José Quaresma
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
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> bruce.ashfield@gmail.com]
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>

-- 
- Thou shalt not follow the NULL pointer, for chaos and madness await thee
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