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| author | Lluís Batlle i Rossell <viric@viric.name> | 2016-05-06 18:07:55 +0200 |
|---|---|---|
| committer | Lluís Batlle i Rossell <viric@viric.name> | 2016-05-06 18:11:03 +0200 |
| commit | 53a45825523566b8c9c5ff135e8ff75e05558d85 (patch) | |
| tree | 90aa4baf8e8f9367413f0ae6a1d7439887173294 | |
| parent | 5a0cde6c19dedd65d34617f48d7433b16862b67d (diff) | |
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Adding vmlinux to linux kernel 'dev' derivation.
It takes some extra 13MB (and in dev, not out), but allows perf to show kernel
symbols when profiling. I think it is worth it.
In my NixOS, I refer to it in the system derivation, for easy telling to perf
through /run/booted-system/vmlinux:
system.extraSystemBuilderCmds = ''
ln -s ${config.boot.kernelPackages.kernel.dev}/vmlinux $out/vmlinux
'';
| -rw-r--r-- | pkgs/os-specific/linux/kernel/manual-config.nix | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix index 5f2bc2d2c55b..8da8f20eae27 100644 --- a/pkgs/os-specific/linux/kernel/manual-config.nix +++ b/pkgs/os-specific/linux/kernel/manual-config.nix @@ -109,6 +109,7 @@ let buildFlags = [ "KBUILD_BUILD_VERSION=1-NixOS" platform.kernelTarget + "vmlinux" # for "perf" and things like that ] ++ optional isModular "modules"; installFlags = [ @@ -122,7 +123,10 @@ let if platform.kernelTarget == "zImage" then "zinstall" else "install") ]; - postInstall = (optionalString installsFirmware '' + postInstall = '' + mkdir -p $dev + cp $buildRoot/vmlinux $dev/ + '' + (optionalString installsFirmware '' mkdir -p $out/lib/firmware '') + (if (platform ? kernelDTB && platform.kernelDTB) then '' make $makeFlags "''${makeFlagsArray[@]}" dtbs |