7ff58e4a86
The default version (modprobe-small) is missing important features, and can also be _extremely_ slow (on purpose[1]). The non-small modprobe implementation doesn't have all features enabled by default, so by changing implementation we'd be risking regression. To mitigate that, I've ensured every feature checked for in modprobe.c is enabled. So unless there's functionality that's _only_ in modprobe-small, we should be fine. [1]: https://git.busybox.net/busybox/tree/modutils/Config.src?h=1_34_1#n8
151 lines
4.2 KiB
Nix
151 lines
4.2 KiB
Nix
{ stdenv, lib, buildPackages, fetchurl, fetchFromGitLab
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, enableStatic ? stdenv.hostPlatform.isStatic
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, enableMinimal ? false
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# Allow forcing musl without switching stdenv itself, e.g. for our bootstrapping:
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# nix build -f pkgs/top-level/release.nix stdenvBootstrapTools.x86_64-linux.dist
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, useMusl ? stdenv.hostPlatform.libc == "musl", musl
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, extraConfig ? ""
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}:
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assert stdenv.hostPlatform.libc == "musl" -> useMusl;
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let
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configParser = ''
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function parseconfig {
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while read LINE; do
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NAME=`echo "$LINE" | cut -d \ -f 1`
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OPTION=`echo "$LINE" | cut -d \ -f 2`
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if ! [[ "$NAME" =~ ^CONFIG_ ]]; then continue; fi
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echo "parseconfig: removing $NAME"
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sed -i /$NAME'\(=\| \)'/d .config
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echo "parseconfig: setting $NAME=$OPTION"
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echo "$NAME=$OPTION" >> .config
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done
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}
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'';
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libcConfig = lib.optionalString useMusl ''
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CONFIG_FEATURE_UTMP n
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CONFIG_FEATURE_WTMP n
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'';
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# The debian version lags behind the upstream version and also contains
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# a debian-specific suffix. We only fetch the debian repository to get the
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# default.script
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debianVersion = "1.30.1-6";
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debianSource = fetchFromGitLab {
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domain = "salsa.debian.org";
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owner = "installer-team";
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repo = "busybox";
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rev = "debian/1%${debianVersion}";
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sha256 = "sha256-6r0RXtmqGXtJbvLSD1Ma1xpqR8oXL2bBKaUE/cSENL8=";
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};
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debianDispatcherScript = "${debianSource}/debian/tree/udhcpc/etc/udhcpc/default.script";
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outDispatchPath = "$out/default.script";
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in
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stdenv.mkDerivation rec {
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pname = "busybox";
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version = "1.34.1";
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# Note to whoever is updating busybox: please verify that:
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# nix-build pkgs/stdenv/linux/make-bootstrap-tools.nix -A test
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# still builds after the update.
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src = fetchurl {
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url = "https://busybox.net/downloads/${pname}-${version}.tar.bz2";
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sha256 = "0jfm9fik7nv4w21zqdg830pddgkdjmplmna9yjn9ck1lwn4vsps1";
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};
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hardeningDisable = [ "format" "pie" ]
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++ lib.optionals enableStatic [ "fortify" ];
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patches = [
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./busybox-in-store.patch
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] ++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) ./clang-cross.patch;
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postPatch = "patchShebangs .";
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configurePhase = ''
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export KCONFIG_NOTIMESTAMP=1
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make ${if enableMinimal then "allnoconfig" else "defconfig"}
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${configParser}
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cat << EOF | parseconfig
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CONFIG_PREFIX "$out"
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CONFIG_INSTALL_NO_USR y
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CONFIG_LFS y
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# More features for modprobe.
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${lib.optionalString (!enableMinimal) ''
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CONFIG_FEATURE_MODPROBE_BLACKLIST y
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CONFIG_FEATURE_MODUTILS_ALIAS y
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CONFIG_FEATURE_MODUTILS_SYMBOLS y
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CONFIG_MODPROBE_SMALL n
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''}
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${lib.optionalString enableStatic ''
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CONFIG_STATIC y
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''}
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# Use the external mount.cifs program.
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CONFIG_FEATURE_MOUNT_CIFS n
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CONFIG_FEATURE_MOUNT_HELPERS y
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# Set paths for console fonts.
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CONFIG_DEFAULT_SETFONT_DIR "/etc/kbd"
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# Bump from 4KB, much faster I/O
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CONFIG_FEATURE_COPYBUF_KB 64
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# Set the path for the udhcpc script
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CONFIG_UDHCPC_DEFAULT_SCRIPT "${outDispatchPath}"
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${extraConfig}
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CONFIG_CROSS_COMPILER_PREFIX "${stdenv.cc.targetPrefix}"
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${libcConfig}
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EOF
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make oldconfig
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runHook postConfigure
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'';
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postConfigure = lib.optionalString (useMusl && stdenv.hostPlatform.libc != "musl") ''
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makeFlagsArray+=("CC=${stdenv.cc.targetPrefix}cc -isystem ${musl.dev}/include -B${musl}/lib -L${musl}/lib")
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'';
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postInstall = ''
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sed -e '
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1 a busybox() { '$out'/bin/busybox "$@"; }\
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logger() { '$out'/bin/logger "$@"; }\
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' ${debianDispatcherScript} > ${outDispatchPath}
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chmod 555 ${outDispatchPath}
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HOST_PATH=$out/bin patchShebangs --host ${outDispatchPath}
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'';
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strictDeps = true;
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depsBuildBuild = [ buildPackages.stdenv.cc ];
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buildInputs = lib.optionals (enableStatic && !useMusl && stdenv.cc.libc ? static) [ stdenv.cc.libc stdenv.cc.libc.static ];
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enableParallelBuilding = true;
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doCheck = false; # tries to access the net
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meta = with lib; {
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description = "Tiny versions of common UNIX utilities in a single small executable";
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homepage = "https://busybox.net/";
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license = licenses.gpl2Only;
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maintainers = with maintainers; [ TethysSvensson qyliss ];
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platforms = platforms.linux;
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priority = 10;
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};
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}
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