framework: add custom_kernel_make_params extension hook

[iav]

Add a new extension hook point in run_kernel_make_internal() that allows extensions to modify kernel make parameters before compilation.

Extensions can now modify:

• common_make_params_quoted - parameters passed to make
• common_make_envs - environment variables for make

This enables features like CROSS_COMPILE_COMPAT for 32-bit compat vDSO on arm64 builds without modifying core build scripts.

#9216

How Has This Been Tested?

• Build with extension=arm64-compat-vdso
• Build with extension=arm64-compat-vdso KERNEL_COMPILER=clang
  Because of compilation error if clang used

Checklist:

Please delete options that are not relevant.

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Summary by CodeRabbit

• New Features
  • Added support for extending and customizing kernel build parameters and environment variables through a new extension hook, enabling greater flexibility in the kernel build process.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

📝 Walkthrough

Walkthrough

A kernel build script is enhanced with an extension hook mechanism that allows external extensions to customize kernel make parameters and environment variables before compilation begins, providing flexibility without modifying core build logic.

Changes

Cohort / File(s)	Change Summary
Kernel Make Extension Hook lib/functions/compilation/kernel-make.sh	Introduces call_extension_method "custom_kernel_make_params" hook after default parameters are assembled, allowing extensions to mutate common_make_params_quoted and common_make_envs before kernel compilation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A hook in the kernel, so clever and bright,
Extensions can dance in the build's morning light,
Parameters tweak'd with a custom flair,
Before make invokes with the utmost care! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: adding a custom_kernel_make_params extension hook to the framework, which directly aligns with the PR's objective and the file modification summary.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}