Linux kernel: Difference between revisions

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VisualWikitext

@@ Line 24: / Line 24: @@
 </syntaxHighlight>
 <syntaxhighlight lang="nix">
-nix-repl> :l <nixpkgs>
+nix-repl> pkgs = import <nixpkgs> {}
 Added 12607 variables.
-nix-repl> pkgs.linuxPackages
+nix-repl> pkgs.linuxKernel.packages
 pkgs.linuxPackages                           pkgs.linuxPackages_custom
 pkgs.linuxPackages-libre                     pkgs.linuxPackages_custom_tinyconfig_kernel
@@ Line 241: / Line 241: @@
 Please provide a comparison with other distributions' kernel:
-- arch: https://github.com/archlinux/svntogit-packages/blob/packages/linux/trunk/config
-- debian: https://salsa.debian.org/kernel-team/linux/blob/master/debian/config/config and the ARCH specific ones
+* Arch: https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/blob/main/config
+* Debian: https://salsa.debian.org/kernel-team/linux/blob/master/debian/config/config and the ARCH specific ones
 == Booting a kernel from a custom source ==
@@ Line 291: / Line 292: @@
      owner = "aramg";
      repo = "droidcam";
-     rev = "v${version}";
+     tag = "v${version}";
      hash = "1d9qpnmqa3pfwsrpjnxdz76ipk4w37bbxyrazchh4vslnfc886fx";
    };
@@ Line 445: / Line 446: @@
 <syntaxHighlight lang=console>
 $ nix-shell
-# to configure
+$ # to configure
 $ nix-shell> make $makeFlags defconfig -j $(nproc)
-# to build
+$ # to build
 $ nix-shell> make $makeFlags -j $(nproc)
 </syntaxHighlight>
@@ Line 466: / Line 467: @@
 <syntaxHighlight lang=console>
 $ nix-shell
-# to configure
+$ # to configure
 $ nix-shell> make $makeFlags defconfig -j $(nproc)
-# to build
+$ # to build
 $ nix-shell> make $makeFlags -j $(nproc)
 </syntaxHighlight>
@@ Line 474: / Line 475: @@
 === Overriding kernel packages ===
-In order to override <code>linuxPackages</code>, use the <code>extend</code> attribute. Example:
+In order to override <code>linuxPackages</code>, an alias of <code>linuxKernel.packages</code>, use the <code>extend</code> attribute. Example:
 <syntaxHighlight lang=nix>
@@ Line 498: / Line 499: @@
      })
    ];
+</syntaxHighlight>
+You can also use <code>kernelPackagesExtensions</code> in a similar fashion to override <code>linuxKernel.packages</code>:
+<syntaxHighlight lang=nix>
+nixpkgs.overlays = [
+  (_: prev: {
+    kernelPackagesExtensions = prev.kernelPackagesExtensions ++ [
+      (_: linuxPrev: {
+        digimend = linuxPrev.digimend.overrideAttrs (prevAttrs: {
+          postPatch = prevAttrs.postPatch or "" + ''
+            substituteInPlace "hid-uclogic-core.c" \
+              --replace-fail "del_timer_sync" "timer_shutdown_sync"
+          '';
+        });
+      })
+    ];
+  })
+];
 </syntaxHighlight>
@@ Line 594: / Line 614: @@
 }
 </syntaxhighlight>
-== Troubleshooting ==
-=== Build fails ===
-==== Too high ram usage ====
-turn off <code>DEBUG_INFO_BTF</code>
 == See also ==