{ device ? (import devices/gl-ar750.nix) , phram ? false }: let overlay = import ./overlay.nix; nixpkgs = import ( device.system // {overlays = [overlay]; }); inherit (nixpkgs.pkgs) callPackage writeText liminix; inherit (nixpkgs.lib) concatStringsSep; config = (import ./merge-modules.nix) [ ./modules/base.nix ({ lib, ... } : { config = { inherit (device) kernel; }; }) ./modules/s6 ./modules/users.nix (if phram then ./modules/phram.nix else (args: {})) ] nixpkgs.pkgs; squashfs = liminix.builders.squashfs config.filesystem.contents; kernel = callPackage ./kernel { inherit (config.kernel) config checkedConfig; }; outputs = rec { inherit squashfs kernel; dtb = kernel.dtb { dts = "qca9531_glinet_gl-ar750.dts"; }; uimage = kernel.uimage { commandLine = concatStringsSep " " config.boot.commandLine; inherit (device.boot) loadAddress entryPoint; inherit (kernel) vmlinux; inherit dtb; }; combined-image = nixpkgs.pkgs.runCommand "firmware.bin" { nativeBuildInputs = [ nixpkgs.buildPackages.ubootTools ]; } '' mkdir $out dd if=${uimage} of=$out/firmware.bin bs=128k conv=sync dd if=${squashfs} of=$out/firmware.bin bs=128k conv=sync,nocreat,notrunc oflag=append ''; boot-scr = let inherit (nixpkgs.lib.trivial) toHexString; uimageStart = 10485760; # 0xa00000 squashfsStart = uimageStart + 2 * 1024 * 1024; squashfsSize = 8; cmd = "mtdparts=phram0:${toString squashfsSize}M(nix) phram.phram=phram0,0x${toHexString squashfsStart},${toString squashfsSize}Mi memmap=${toString squashfsSize}M\$0x${toHexString squashfsStart} root=1f00"; in nixpkgs.pkgs.buildPackages.writeScript "firmware.bin" '' setenv serverip 192.168.8.148 setenv ipaddr 192.168.8.251 setenv bootargs '${concatStringsSep " " config.boot.commandLine} ${cmd}' tftp 0x8${toHexString uimageStart} result/uimage ; tftp 0x8${toHexString squashfsStart} result/squashfs bootm 0x${toHexString uimageStart} ''; directory = nixpkgs.pkgs.runCommand "liminix" {} '' mkdir $out cd $out ln -s ${squashfs} squashfs ln -s ${kernel.vmlinux} vmlinux ln -s ${manifest} manifest ln -s ${uimage} uimage ${if phram then "ln -s ${boot-scr} boot.scr" else ""} ln -s ${boot-scr} flash.scr ''; # this exists so that you can run "nix-store -q --tree" on it and find # out what's in the image, which is nice if it's unexpectedly huge manifest = writeText "manifest.json" (builtins.toJSON config.filesystem.contents); tftpd = nixpkgs.pkgs.buildPackages.tufted; }; in { outputs = outputs // { default = outputs.${device.outputs.default}; }; # this is just here as a convenience, so that we can get a # cross-compiling nix-shell for any package we're customizing inherit (nixpkgs) pkgs; }