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76c956be5c
Some packages don’t work correctly with pie. Here I disable it for: - busybox - linux kernel - kexectools I also get rid of the Musl conditional for disabling pie in GCC and Binutils. Some day we might want to enable PIE without Musl and it will be useful to have the *just* work with our compiler and linkers.
110 lines
2.7 KiB
Nix
110 lines
2.7 KiB
Nix
{ stdenv, lib, buildPackages, fetchurl
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, enableStatic ? false
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, enableMinimal ? false
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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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in
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stdenv.mkDerivation rec {
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name = "busybox-1.29.3";
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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/${name}.tar.bz2";
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sha256 = "1dzg45vgy2w1xcd3p6h8d76ykhabbvk1h0lf8yb24ikrwlv8cr4p";
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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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];
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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 "$out"
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CONFIG_INSTALL_NO_USR y
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CONFIG_LFS y
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${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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${extraConfig}
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CONFIG_CROSS_COMPILER_PREFIX "${stdenv.cc.targetPrefix}"
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${libcConfig}
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EOF
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make oldconfig
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runHook postConfigure
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'';
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postConfigure = lib.optionalString useMusl ''
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makeFlagsArray+=("CC=${stdenv.cc.targetPrefix}cc -isystem ${musl.dev}/include -B${musl}/lib -L${musl}/lib")
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'';
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depsBuildBuild = [ buildPackages.stdenv.cc ];
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buildInputs = lib.optionals (enableStatic && !useMusl) [ 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 stdenv.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.gpl2;
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maintainers = with maintainers; [ ];
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platforms = platforms.linux;
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};
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}
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