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