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linux: build scripts_gdb #432405

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@raboof raboof commented Aug 10, 2025 •
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This makes it possible to set breakpoints in symbols loaded from kernel modules - like https://wiki.nixos.org/wiki/Kernel_Debugging_with_QEMU but with Nix-built kernels.

For now you will also need to apply https://lkml.org/lkml/2025/5/31/383 to the guest kernel to make lx-symbols actually work. remember to pass the nokaslr kernel parameter

Things done

  • Built on platform:
    • x86_64-linux
    • aarch64-linux
    • x86_64-darwin
    • aarch64-darwin
  • Tested, as applicable:
  • Ran nixpkgs-review on this PR. See nixpkgs-review usage.
  • Tested basic functionality of all binary files, usually in ./result/bin/.
  • Nixpkgs Release Notes
    • Package update: when the change is major or breaking.
  • NixOS Release Notes
    • Module addition: when adding a new NixOS module.
    • Module update: when the change is significant.
  • Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

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@nixpkgs-ci nixpkgs-ci bot added 2.status: merge conflict This PR has merge conflicts with the target branch 10.rebuild-linux: 501+ This PR causes many rebuilds on Linux and should normally target the staging branches. 10.rebuild-darwin: 1-10 This PR causes between 1 and 10 packages to rebuild on Darwin. 10.rebuild-linux: 2501-5000 This PR causes many rebuilds on Linux and should target the staging branches. 6.topic: kernel The Linux kernel labels Aug 10, 2025
@nix-owners nix-owners bot requested a review from thoughtpolice August 10, 2025 01:40
@raboof raboof changed the base branch from master to staging August 10, 2025 02:10
@nixpkgs-ci nixpkgs-ci bot closed this Aug 10, 2025
@nixpkgs-ci nixpkgs-ci bot reopened this Aug 10, 2025
@raboof raboof removed the 2.status: merge conflict This PR has merge conflicts with the target branch label Aug 10, 2025
alyssais
alyssais reviewed Aug 10, 2025
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@raboof raboof requested a review from alyssais August 10, 2025 14:39
alyssais
alyssais approved these changes Aug 17, 2025
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Looks fine

@nixpkgs-ci nixpkgs-ci bot added 12.approvals: 1 This PR was reviewed and approved by one person. 12.approved-by: package-maintainer This PR was reviewed and approved by a maintainer listed in any of the changed packages. labels Aug 17, 2025
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This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/nix-kernel-debug-symbols/5697/2

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@alyssais alyssais alyssais approved these changes

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6.topic: kernel The Linux kernel 10.rebuild-darwin: 1-10 This PR causes between 1 and 10 packages to rebuild on Darwin. 10.rebuild-linux: 501+ This PR causes many rebuilds on Linux and should normally target the staging branches. 10.rebuild-linux: 2501-5000 This PR causes many rebuilds on Linux and should target the staging branches. 12.approvals: 1 This PR was reviewed and approved by one person. 12.approved-by: package-maintainer This PR was reviewed and approved by a maintainer listed in any of the changed packages.
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