nixpkgs/pkgs/os-specific/linux/busybox/default.nix
Tethys Svensson a9597f9573 busybox: Use git to fetch debian.script from debian
Debian has yanked the upstream tarball we use to get default.script. We
could simply bump the version number to get the new tarball, but to
avoid the problem in the future, we should instead fetch it from git.
2020-09-13 12:34:08 +02:00

145 lines
4.3 KiB
Nix

{ stdenv, lib, buildPackages, fetchurl, fetchFromGitLab
, enableStatic ? false
, enableMinimal ? false
# Allow forcing musl without switching stdenv itself, e.g. for our bootstrapping:
# nix build -f pkgs/top-level/release.nix stdenvBootstrapTools.x86_64-linux.dist
, useMusl ? stdenv.hostPlatform.libc == "musl", musl
, extraConfig ? ""
}:
assert stdenv.hostPlatform.libc == "musl" -> useMusl;
let
configParser = ''
function parseconfig {
while read LINE; do
NAME=`echo "$LINE" | cut -d \ -f 1`
OPTION=`echo "$LINE" | cut -d \ -f 2`
if ! [[ "$NAME" =~ ^CONFIG_ ]]; then continue; fi
echo "parseconfig: removing $NAME"
sed -i /$NAME'\(=\| \)'/d .config
echo "parseconfig: setting $NAME=$OPTION"
echo "$NAME=$OPTION" >> .config
done
}
'';
libcConfig = lib.optionalString useMusl ''
CONFIG_FEATURE_UTMP n
CONFIG_FEATURE_WTMP n
'';
# The debian version lacks behind the upstream version and also contains
# a debian-specific suffix. We only fetch the debian repository to get the
# default.script
debianVersion = "1.30.1-6";
debianSource = fetchFromGitLab {
domain = "salsa.debian.org";
owner = "installer-team";
repo = "busybox";
rev = "debian/1%${debianVersion}";
sha256 = "sha256-6r0RXtmqGXtJbvLSD1Ma1xpqR8oXL2bBKaUE/cSENL8=";
};
debianDispatcherScript = "${debianSource}/debian/tree/udhcpc/etc/udhcpc/default.script";
outDispatchPath = "$out/default.script";
in
stdenv.mkDerivation rec {
# TODO: When bumping this version, please validate whether the wget patch is present upstream
# and remove the patch if it is. The patch should be present upstream for all versions 1.32.0+.
# See NixOs/nixpkgs#94722 for context.
name = "busybox-1.31.1";
# Note to whoever is updating busybox: please verify that:
# nix-build pkgs/stdenv/linux/make-bootstrap-tools.nix -A test
# still builds after the update.
src = fetchurl {
url = "https://busybox.net/downloads/${name}.tar.bz2";
sha256 = "1659aabzp8w4hayr4z8kcpbk2z1q2wqhw7i1yb0l72b45ykl1yfh";
};
hardeningDisable = [ "format" "pie" ]
++ lib.optionals enableStatic [ "fortify" ];
patches = [
./busybox-in-store.patch
./0001-Fix-build-with-glibc-2.31.patch
./0001-wget-implement-TLS-verification-with-ENABLE_FEATURE_.patch
] ++ stdenv.lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) ./clang-cross.patch;
postPatch = "patchShebangs .";
configurePhase = ''
export KCONFIG_NOTIMESTAMP=1
make ${if enableMinimal then "allnoconfig" else "defconfig"}
${configParser}
cat << EOF | parseconfig
CONFIG_PREFIX "$out"
CONFIG_INSTALL_NO_USR y
CONFIG_LFS y
${lib.optionalString enableStatic ''
CONFIG_STATIC y
''}
# Use the external mount.cifs program.
CONFIG_FEATURE_MOUNT_CIFS n
CONFIG_FEATURE_MOUNT_HELPERS y
# Set paths for console fonts.
CONFIG_DEFAULT_SETFONT_DIR "/etc/kbd"
# Bump from 4KB, much faster I/O
CONFIG_FEATURE_COPYBUF_KB 64
# Set the path for the udhcpc script
CONFIG_UDHCPC_DEFAULT_SCRIPT "${outDispatchPath}"
${extraConfig}
CONFIG_CROSS_COMPILER_PREFIX "${stdenv.cc.targetPrefix}"
${libcConfig}
EOF
make oldconfig
runHook postConfigure
'';
postConfigure = lib.optionalString (useMusl && stdenv.hostPlatform.libc != "musl") ''
makeFlagsArray+=("CC=${stdenv.cc.targetPrefix}cc -isystem ${musl.dev}/include -B${musl}/lib -L${musl}/lib")
'';
postInstall = ''
sed -e '
1 a busybox() { '$out'/bin/busybox "$@"; }\
logger() { '$out'/bin/logger "$@"; }\
' ${debianDispatcherScript} > ${outDispatchPath}
chmod 555 ${outDispatchPath}
PATH=$out/bin patchShebangs ${outDispatchPath}
'';
depsBuildBuild = [ buildPackages.stdenv.cc ];
buildInputs = lib.optionals (enableStatic && !useMusl && stdenv.cc.libc ? static) [ stdenv.cc.libc stdenv.cc.libc.static ];
enableParallelBuilding = true;
doCheck = false; # tries to access the net
meta = with stdenv.lib; {
description = "Tiny versions of common UNIX utilities in a single small executable";
homepage = "https://busybox.net/";
license = licenses.gpl2;
maintainers = with maintainers; [ TethysSvensson ];
platforms = platforms.linux;
priority = 10;
};
}