diff options
Diffstat (limited to 'nixpkgs/pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix')
| -rw-r--r-- | nixpkgs/pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix b/nixpkgs/pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix new file mode 100644 index 000000000000..1e34ad1e5e44 --- /dev/null +++ b/nixpkgs/pkgs/build-support/build-fhsenv-bubblewrap/buildFHSEnv.nix @@ -0,0 +1,266 @@ +{ lib +, stdenv +, runCommandLocal +, buildEnv +, writeText +, writeShellScriptBin +, pkgs +, pkgsi686Linux +}: + +{ profile ? "" +, targetPkgs ? pkgs: [] +, multiPkgs ? pkgs: [] +, multiArch ? false # Whether to include 32bit packages +, extraBuildCommands ? "" +, extraBuildCommandsMulti ? "" +, extraOutputsToInstall ? [] +, ... # for name, or pname+version +} @ args: + +# HOWTO: +# All packages (most likely programs) returned from targetPkgs will only be +# installed once--matching the host's architecture (64bit on x86_64 and 32bit on +# x86). +# +# Packages (most likely libraries) returned from multiPkgs are installed +# once on x86 systems and twice on x86_64 systems. +# On x86 they are merged with packages from targetPkgs. +# On x86_64 they are added to targetPkgs and in addition their 32bit +# versions are also installed. The final directory structure looks as +# follows: +# /lib32 will include 32bit libraries from multiPkgs +# /lib64 will include 64bit libraries from multiPkgs and targetPkgs +# /lib will link to /lib32 + +let + inherit (stdenv) is64bit; + + name = if (args ? pname && args ? version) + then "${args.pname}-${args.version}" + else args.name; + + # "use of glibc_multi is only supported on x86_64-linux" + isMultiBuild = multiArch && stdenv.system == "x86_64-linux"; + isTargetBuild = !isMultiBuild; + + # list of packages (usually programs) which match the host's architecture + # (which includes stuff from multiPkgs) + targetPaths = targetPkgs pkgs ++ (if multiPkgs == null then [] else multiPkgs pkgs); + + # list of packages which are for x86 (only multiPkgs, only for x86_64 hosts) + multiPaths = multiPkgs pkgsi686Linux; + + # base packages of the chroot + # these match the host's architecture, glibc_multi is used for multilib + # builds. glibcLocales must be before glibc or glibc_multi as otherwiese + # the wrong LOCALE_ARCHIVE will be used where only C.UTF-8 is available. + baseTargetPaths = with pkgs; [ + glibcLocales + (if isMultiBuild then glibc_multi else glibc) + (toString gcc.cc.lib) + bashInteractiveFHS + coreutils + less + shadow + su + gawk + diffutils + findutils + gnused + gnugrep + gnutar + gzip + bzip2 + xz + ]; + baseMultiPaths = with pkgsi686Linux; [ + (toString gcc.cc.lib) + ]; + + ldconfig = writeShellScriptBin "ldconfig" '' + # due to a glibc bug, 64-bit ldconfig complains about patchelf'd 32-bit libraries, so we use 32-bit ldconfig when we have them + exec ${if isMultiBuild then pkgsi686Linux.glibc.bin else pkgs.glibc.bin}/bin/ldconfig -f /etc/ld.so.conf -C /etc/ld.so.cache "$@" + ''; + + etcProfile = writeText "profile" '' + export PS1='${name}-chrootenv:\u@\h:\w\$ ' + export LOCALE_ARCHIVE='/usr/lib/locale/locale-archive' + export LD_LIBRARY_PATH="/run/opengl-driver/lib:/run/opengl-driver-32/lib''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH" + export PATH="/run/wrappers/bin:/usr/bin:/usr/sbin:$PATH" + export TZDIR='/etc/zoneinfo' + + # XDG_DATA_DIRS is used by pressure-vessel (steam proton) and vulkan loaders to find the corresponding icd + export XDG_DATA_DIRS=$XDG_DATA_DIRS''${XDG_DATA_DIRS:+:}/run/opengl-driver/share:/run/opengl-driver-32/share + + # Following XDG spec [1], XDG_DATA_DIRS should default to "/usr/local/share:/usr/share". + # In nix, it is commonly set without containing these values, so we add them as fallback. + # + # [1] <https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html> + case ":$XDG_DATA_DIRS:" in + *:/usr/local/share:*) ;; + *) export XDG_DATA_DIRS="$XDG_DATA_DIRS''${XDG_DATA_DIRS:+:}/usr/local/share" ;; + esac + case ":$XDG_DATA_DIRS:" in + *:/usr/share:*) ;; + *) export XDG_DATA_DIRS="$XDG_DATA_DIRS''${XDG_DATA_DIRS:+:}/usr/share" ;; + esac + + # Force compilers and other tools to look in default search paths + unset NIX_ENFORCE_PURITY + export NIX_BINTOOLS_WRAPPER_TARGET_HOST_${stdenv.cc.suffixSalt}=1 + export NIX_CC_WRAPPER_TARGET_HOST_${stdenv.cc.suffixSalt}=1 + export NIX_CFLAGS_COMPILE='-idirafter /usr/include' + export NIX_CFLAGS_LINK='-L/usr/lib -L/usr/lib32' + export NIX_LDFLAGS='-L/usr/lib -L/usr/lib32' + export PKG_CONFIG_PATH=/usr/lib/pkgconfig + export ACLOCAL_PATH=/usr/share/aclocal + + ${profile} + ''; + + # Compose /etc for the chroot environment + etcPkg = runCommandLocal "${name}-chrootenv-etc" { } '' + mkdir -p $out/etc + pushd $out/etc + + # environment variables + ln -s ${etcProfile} profile + + # symlink /etc/mtab -> /proc/mounts (compat for old userspace progs) + ln -s /proc/mounts mtab + ''; + + # Composes a /usr-like directory structure + staticUsrProfileTarget = buildEnv { + name = "${name}-usr-target"; + # ldconfig wrapper must come first so it overrides the original ldconfig + paths = [ etcPkg ldconfig ] ++ baseTargetPaths ++ targetPaths; + extraOutputsToInstall = [ "out" "lib" "bin" ] ++ extraOutputsToInstall; + ignoreCollisions = true; + postBuild = '' + if [[ -d $out/share/gsettings-schemas/ ]]; then + # Recreate the standard schemas directory if its a symlink to make it writable + if [[ -L $out/share/glib-2.0 ]]; then + target=$(readlink $out/share/glib-2.0) + rm $out/share/glib-2.0 + mkdir $out/share/glib-2.0 + ln -fs $target/* $out/share/glib-2.0 + fi + + if [[ -L $out/share/glib-2.0/schemas ]]; then + target=$(readlink $out/share/glib-2.0/schemas) + rm $out/share/glib-2.0/schemas + mkdir $out/share/glib-2.0/schemas + ln -fs $target/* $out/share/glib-2.0/schemas + fi + + mkdir -p $out/share/glib-2.0/schemas + + for d in $out/share/gsettings-schemas/*; do + # Force symlink, in case there are duplicates + ln -fs $d/glib-2.0/schemas/*.xml $out/share/glib-2.0/schemas + ln -fs $d/glib-2.0/schemas/*.gschema.override $out/share/glib-2.0/schemas + done + + # and compile them + ${pkgs.glib.dev}/bin/glib-compile-schemas $out/share/glib-2.0/schemas + fi + ''; + }; + + staticUsrProfileMulti = buildEnv { + name = "${name}-usr-multi"; + paths = baseMultiPaths ++ multiPaths; + extraOutputsToInstall = [ "out" "lib" ] ++ extraOutputsToInstall; + ignoreCollisions = true; + }; + + # setup library paths only for the targeted architecture + setupLibDirsTarget = '' + # link content of targetPaths + cp -rsHf ${staticUsrProfileTarget}/lib lib + ln -s lib lib${if is64bit then "64" else "32"} + ''; + + # setup /lib, /lib32 and /lib64 + setupLibDirsMulti = '' + mkdir -m0755 lib32 + mkdir -m0755 lib64 + ln -s lib64 lib + + # copy glibc stuff + cp -rsHf ${staticUsrProfileTarget}/lib/32/* lib32/ + chmod u+w -R lib32/ + + # copy content of multiPaths (32bit libs) + if [ -d ${staticUsrProfileMulti}/lib ]; then + cp -rsHf ${staticUsrProfileMulti}/lib/* lib32/ + chmod u+w -R lib32/ + fi + + # copy content of targetPaths (64bit libs) + cp -rsHf ${staticUsrProfileTarget}/lib/* lib64/ + chmod u+w -R lib64/ + + # symlink 32-bit ld-linux.so + ln -Ls ${staticUsrProfileTarget}/lib/32/ld-linux.so.2 lib/ + ''; + + setupLibDirs = if isTargetBuild + then setupLibDirsTarget + else setupLibDirsMulti; + + # the target profile is the actual profile that will be used for the chroot + setupTargetProfile = '' + mkdir -m0755 usr + pushd usr + + ${setupLibDirs} + + '' + lib.optionalString isMultiBuild '' + if [ -d "${staticUsrProfileMulti}/share" ]; then + cp -rLf ${staticUsrProfileMulti}/share share + fi + '' + '' + if [ -d "${staticUsrProfileTarget}/share" ]; then + if [ -d share ]; then + chmod -R 755 share + cp -rLTf ${staticUsrProfileTarget}/share share + else + cp -rsHf ${staticUsrProfileTarget}/share share + fi + fi + for i in bin sbin include; do + if [ -d "${staticUsrProfileTarget}/$i" ]; then + cp -rsHf "${staticUsrProfileTarget}/$i" "$i" + fi + done + cd .. + + for i in var etc opt; do + if [ -d "${staticUsrProfileTarget}/$i" ]; then + cp -rsHf "${staticUsrProfileTarget}/$i" "$i" + fi + done + for i in usr/{bin,sbin,lib,lib32,lib64}; do + if [ -d "$i" ]; then + ln -s "$i" + fi + done + + popd + ''; + +in runCommandLocal "${name}-fhs" { + passthru = { + inherit args baseTargetPaths targetPaths baseMultiPaths ldconfig isMultiBuild; + }; +} '' + mkdir -p $out + pushd $out + + ${setupTargetProfile} + ${extraBuildCommands} + ${lib.optionalString isMultiBuild extraBuildCommandsMulti} +'' |