231 lines
7 KiB
Nix
231 lines
7 KiB
Nix
# This file constructs the standard build environment for the
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# Linux/i686 platform. It's completely pure; that is, it relies on no
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# external (non-Nix) tools, such as /usr/bin/gcc, and it contains a C
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# compiler and linker that do not search in default locations,
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# ensuring purity of components produced by it.
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{allPackages}:
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rec {
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system = "i686-linux";
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# The bootstrap process proceeds in several steps.
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# 1) Create a standard environment by downloading pre-built
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# statically linked binaries of coreutils, gcc, etc.
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# To fetch the pre-built binaries, we use a statically linked `curl'
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# binary which is unpacked here.
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curl = derivation {
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name = "curl";
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builder = ./tools/bash;
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tar = ./tools/tar;
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bunzip2 = ./tools/bunzip2;
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cp = ./tools/cp;
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curl = ./tools/curl-7.15.1-static.tar.bz2;
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inherit system;
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args = [ ./scripts/unpack-curl.sh ];
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};
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# This function downloads a file.
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download = {url, md5, pkgname}: derivation {
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name = baseNameOf (toString url);
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builder = ./tools/bash;
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inherit system curl url;
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args = [ ./scripts/download.sh ];
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# Nix 0.8 fixed-output derivations.
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outputHashAlgo = "md5";
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outputHash = md5;
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# Compatibility with Nix <= 0.7.
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id = md5;
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};
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# This function downloads and unpacks a file.
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downloadAndUnpack =
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{ url, md5, pkgname, postProcess ? [], addToPath ? []
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, extra ? null, extra2 ? null
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, extra3 ? null, extra4? null, patchelf ? null}:
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derivation {
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name = pkgname;
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builder = ./tools/bash;
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tar = ./tools/tar;
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bunzip2 = ./tools/bunzip2;
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cp = ./tools/cp;
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args = [ ./scripts/unpack.sh ];
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tarball = download {inherit url md5 pkgname;};
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inherit system postProcess addToPath extra extra2 extra3 extra4 patchelf;
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};
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# The various statically linked components that make up the standard
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# environment.
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staticTools = downloadAndUnpack {
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url = http://nix.cs.uu.nl/dist/tarballs/stdenv-linux/static-tools.tar.bz2;
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pkgname = "static-tools";
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md5 = "90578c603079313123e8c754a85e40d7";
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};
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binutils = downloadAndUnpack {
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url = http://nix.cs.uu.nl/dist/tarballs/stdenv-linux/binutils-2.15-static.tar.bz2;
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pkgname = "binutils";
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md5 = "9c134038b7f1894a4b307d600207047c";
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};
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staticGCC = (downloadAndUnpack {
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url = http://nix.cs.uu.nl/dist/tarballs/stdenv-linux/gcc-3.4.2-static.tar.bz2;
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pkgname = "gcc";
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md5 = "600452fac470a49a41ea81d39c209f35";
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postProcess = [./scripts/fix-outpath.sh];
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addToPath = [staticTools];
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}) // { langC = true; langCC = false; langF77 = false; };
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glibc = downloadAndUnpack {
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url = http://nix.cs.uu.nl/dist/tarballs/stdenv-linux/glibc-2.3.3-static.tar.bz2;
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pkgname = "glibc";
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md5 = "36ff244e666c60784edfe1cc66f68e4c";
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postProcess = [./scripts/fix-outpath.sh];
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addToPath = [staticTools];
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};
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# A helper function to call gcc-wrapper.
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wrapGCC =
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{gcc ? staticGCC, glibc, binutils, shell ? ""}:
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(import ../../build-support/gcc-wrapper) {
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nativeTools = false;
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nativeGlibc = false;
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inherit gcc binutils glibc shell;
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stdenv = stdenvInitial;
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};
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# The "fake" standard environment used to build "real" standard
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# environments. It consists of just the basic statically linked
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# tools.
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stdenvInitial = let {
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body = derivation {
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name = "stdenv-linux-initial";
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builder = ./tools/bash;
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args = [ ./scripts/builder-stdenv-initial.sh ];
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inherit system staticTools;
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} // {
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# !!! too much duplication with stdenv/generic/default.nix
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mkDerivation = attrs: (derivation ((removeAttrs attrs ["meta"]) // {
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builder = ./tools/bash;
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args = ["-e" attrs.builder];
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stdenv = body;
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system = body.system;
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})) // { meta = if attrs ? meta then attrs.meta else {}; };
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shell = ./tools/bash;
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};
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};
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# This function builds the various standard environments used during
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# the bootstrap.
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stdenvBootFun =
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{gcc, staticGlibc, extraAttrs ? {}}:
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import ../generic {
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name = "stdenv-linux-boot";
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param1 = if staticGlibc then "static" else "dynamic";
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preHook = ./prehook.sh;
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stdenv = stdenvInitial;
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shell = ./tools/bash;
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initialPath = [
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staticTools
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];
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inherit gcc extraAttrs;
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};
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# Create the first "real" standard environment. This one consists
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# of statically linked components only, and a minimal glibc to keep
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# the gcc configure script happy.
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stdenvLinuxBoot1 = stdenvBootFun {
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# Use the statically linked, downloaded glibc/gcc/binutils.
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gcc = wrapGCC {inherit glibc binutils;};
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staticGlibc = true;
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extraAttrs = {inherit curl;};
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};
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# 2) These are the packages that we can build with the first
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# stdenv. We only need Glibc (in step 3).
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stdenvLinuxBoot1Pkgs = allPackages {
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inherit system;
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bootStdenv = stdenvLinuxBoot1;
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};
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# 3) Build Glibc with the statically linked tools. The result is the
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# full, dynamically linked, final Glibc.
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stdenvLinuxGlibc = stdenvLinuxBoot1Pkgs.glibc;
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# 4) Construct a second stdenv identical to the first, except that
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# this one uses the Glibc built in step 3. It still uses
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# statically linked tools.
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stdenvLinuxBoot2 = removeAttrs (stdenvBootFun {
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staticGlibc = false;
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gcc = wrapGCC {inherit binutils; glibc = stdenvLinuxGlibc;};
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extraAttrs = {inherit curl; glibc = stdenvLinuxGlibc;};
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}) ["gcc" "binutils"];
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# 5) The packages that can be built using the second stdenv.
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stdenvLinuxBoot2Pkgs = allPackages {
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inherit system;
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bootStdenv = stdenvLinuxBoot2;
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};
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# 6) Construct a third stdenv identical to the second, except that
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# this one uses the dynamically linked GCC and Binutils from step
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# 5. The other tools (e.g. coreutils) are still static.
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stdenvLinuxBoot3 = stdenvBootFun {
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staticGlibc = false;
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gcc = wrapGCC {
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inherit (stdenvLinuxBoot2Pkgs) binutils;
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glibc = stdenvLinuxGlibc;
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gcc = stdenvLinuxBoot2Pkgs.gcc.gcc;
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};
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extraAttrs = {inherit curl;};
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};
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# 7) The packages that can be built using the third stdenv.
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stdenvLinuxBoot3Pkgs = allPackages {
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inherit system;
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bootStdenv = stdenvLinuxBoot3;
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};
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# 8) Construct the final stdenv. It uses the Glibc, GCC and
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# Binutils built above, and adds in dynamically linked versions
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# of all other tools.
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stdenvLinux = (import ../generic) {
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name = "stdenv-linux";
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preHook = ./prehook.sh;
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initialPath = [
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((import ../common-path.nix) {pkgs = stdenvLinuxBoot3Pkgs;})
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stdenvLinuxBoot3Pkgs.patchelf
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];
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stdenv = stdenvInitial;
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gcc = wrapGCC {
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inherit (stdenvLinuxBoot2Pkgs) binutils;
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glibc = stdenvLinuxGlibc;
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gcc = stdenvLinuxBoot2Pkgs.gcc.gcc;
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shell = stdenvLinuxBoot3Pkgs.bash + "/bin/sh";
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};
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shell = stdenvLinuxBoot3Pkgs.bash + "/bin/sh";
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extraAttrs = {
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curl = stdenvLinuxBoot3Pkgs.realCurl;
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inherit (stdenvLinuxBoot2Pkgs) binutils /* gcc */ glibc;
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inherit (stdenvLinuxBoot3Pkgs)
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gzip bzip2 bash coreutils diffutils findutils gawk
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gnumake gnused gnutar gnugrep patch patchelf;
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};
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};
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}
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