mirror of
https://github.com/xddxdd/nix-cachyos-kernel.git
synced 2026-07-03 11:08:07 +02:00
59 lines
1.6 KiB
Nix
59 lines
1.6 KiB
Nix
{
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pkgs,
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lib,
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...
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}:
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rec {
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# https://github.com/NixOS/nixpkgs/pull/129806
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# https://github.com/lovesegfault/nix-config/blob/master/nix/overlays/linux-lto.nix
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noBintools = {
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bootBintools = null;
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bootBintoolsNoLibc = null;
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};
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hostLLVM = pkgs.pkgsBuildHost.llvmPackages.override noBintools;
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buildLLVM = pkgs.pkgsBuildBuild.llvmPackages.override noBintools;
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ltoMakeflags = [
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"LLVM=1"
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"LLVM_IAS=1"
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"CC=${buildLLVM.clangUseLLVM}/bin/clang"
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"LD=${buildLLVM.lld}/bin/ld.lld"
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"HOSTLD=${hostLLVM.lld}/bin/ld.lld"
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"AR=${buildLLVM.llvm}/bin/llvm-ar"
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"HOSTAR=${hostLLVM.llvm}/bin/llvm-ar"
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"NM=${buildLLVM.llvm}/bin/llvm-nm"
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"STRIP=${buildLLVM.llvm}/bin/llvm-strip"
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"OBJCOPY=${buildLLVM.llvm}/bin/llvm-objcopy"
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"OBJDUMP=${buildLLVM.llvm}/bin/llvm-objdump"
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"READELF=${buildLLVM.llvm}/bin/llvm-readelf"
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"HOSTCC=${hostLLVM.clangUseLLVM}/bin/clang"
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"HOSTCXX=${hostLLVM.clangUseLLVM}/bin/clang++"
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# Mute nixpkgs CC wrapper warnings for Clang+LTO
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"NIX_CC_WRAPPER_SUPPRESS_TARGET_WARNING=1"
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];
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stdenvLLVM =
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let
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mkLLVMPlatform =
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platform:
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platform
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// {
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linux-kernel = platform.linux-kernel // {
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makeFlags = (platform.linux-kernel.makeFlags or [ ]) ++ ltoMakeflags;
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};
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};
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stdenv' = pkgs.overrideCC hostLLVM.stdenv hostLLVM.clangUseLLVM;
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in
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stdenv'.override (old: {
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hostPlatform = mkLLVMPlatform stdenv'.hostPlatform;
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buildPlatform = mkLLVMPlatform stdenv'.buildPlatform;
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extraNativeBuildInputs = [
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hostLLVM.lld
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pkgs.patchelf
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];
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});
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}
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