nixpkgs/pkgs/stdenv/linux/default.nix
Shea Levy 4d70ba6cc9 Merge from trunk up through r28790
svn path=/nixpkgs/branches/stdenv-updates/; revision=28792
2011-08-24 19:16:43 +00:00

300 lines
8.6 KiB
Nix

# 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.
# The function defaults are for easy testing.
{system ? "i686-linux", allPackages ? import ../../top-level/all-packages.nix, platform}:
rec {
bootstrapFiles =
if system == "i686-linux" then import ./bootstrap/i686
else if system == "x86_64-linux" then import ./bootstrap/x86_64
else if system == "powerpc-linux" then import ./bootstrap/powerpc
else if system == "armv5tel-linux" then import ./bootstrap/armv5tel
else if system == "mips64-linux" then import ./bootstrap/loongson2f
else abort "unsupported platform for the pure Linux stdenv";
commonPreHook =
''
export NIX_ENFORCE_PURITY=1
havePatchELF=1
${if system == "x86_64-linux" then "NIX_LIB64_IN_SELF_RPATH=1" else ""}
${if system == "mips64-linux" then "NIX_LIB32_IN_SELF_RPATH=1" else ""}
'';
# The bootstrap process proceeds in several steps.
# 1) Create a standard environment by downloading pre-built binaries
# of coreutils, GCC, etc.
# This function downloads a file.
download = {url, sha256}: derivation {
name = baseNameOf (toString url);
builder = bootstrapFiles.sh;
inherit system url;
inherit (bootstrapFiles) bzip2 mkdir curl cpio ln;
args = [ ./scripts/download.sh ];
outputHashAlgo = "sha256";
outputHash = sha256;
impureEnvVars = [ "http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy" ];
};
# Download and unpack the bootstrap tools (coreutils, GCC, Glibc, ...).
bootstrapTools = derivation {
name = "bootstrap-tools";
builder = bootstrapFiles.sh;
args = if (system == "armv5tel-linux") then
([ ./scripts/unpack-bootstrap-tools-arm.sh ])
else
([ ./scripts/unpack-bootstrap-tools.sh ]);
inherit (bootstrapFiles) bzip2 mkdir curl cpio;
tarball = download {
inherit (bootstrapFiles.bootstrapTools) url sha256;
};
inherit system;
# Needed by the GCC wrapper.
langC = true;
langCC = true;
};
# This function builds the various standard environments used during
# the bootstrap.
stdenvBootFun =
{gcc, extraAttrs ? {}, overrides ? {}, extraPath ? [], fetchurl}:
import ../generic {
inherit system;
name = "stdenv-linux-boot";
param1 = bootstrapTools;
preHook = builtins.toFile "prehook.sh"
''
# Don't patch #!/interpreter because it leads to retained
# dependencies on the bootstrapTools in the final stdenv.
dontPatchShebangs=1
${commonPreHook}
'';
shell = "${bootstrapTools}/bin/sh";
initialPath = [bootstrapTools] ++ extraPath;
fetchurlBoot = fetchurl;
inherit gcc;
# Having the proper 'platform' in all the stdenvs allows getting proper
# linuxHeaders for example.
extraAttrs = extraAttrs // { inherit platform; };
overrides = overrides // {
inherit fetchurl;
};
};
# Build a dummy stdenv with no GCC or working fetchurl. This is
# because we need a stdenv to build the GCC wrapper and fetchurl.
stdenvLinuxBoot0 = stdenvBootFun {
gcc = "/no-such-path";
fetchurl = null;
};
fetchurl = import ../../build-support/fetchurl {
stdenv = stdenvLinuxBoot0;
curl = bootstrapTools;
};
# The Glibc include directory cannot have the same prefix as the GCC
# include directory, since GCC gets confused otherwise (it will
# search the Glibc headers before the GCC headers). So create a
# dummy Glibc.
bootstrapGlibc = stdenvLinuxBoot0.mkDerivation {
name = "bootstrap-glibc";
buildCommand = ''
ensureDir $out
ln -s ${bootstrapTools}/lib $out/lib
ln -s ${bootstrapTools}/include-glibc $out/include
'';
};
# A helper function to call gcc-wrapper.
wrapGCC =
{gcc ? bootstrapTools, libc, binutils, coreutils, shell ? "", name ? "bootstrap-gcc-wrapper"}:
import ../../build-support/gcc-wrapper {
nativeTools = false;
nativeLibc = false;
inherit gcc binutils coreutils libc shell name;
stdenv = stdenvLinuxBoot0;
};
# Create the first "real" standard environment. This one consists
# of bootstrap tools only, and a minimal Glibc to keep the GCC
# configure script happy.
stdenvLinuxBoot1 = stdenvBootFun {
gcc = wrapGCC {
libc = bootstrapGlibc;
binutils = bootstrapTools;
coreutils = bootstrapTools;
};
inherit fetchurl;
};
# 2) These are the packages that we can build with the first
# stdenv. We only need binutils, because recent glibcs
# require recent binutils, and those in bootstrap-tools may
# be too old. (in step 3).
stdenvLinuxBoot1Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot1;
};
firstBinutils = stdenvLinuxBoot1Pkgs.binutils;
# 3) 2nd stdenv that we will use to build only the glibc.
stdenvLinuxBoot2 = stdenvBootFun {
gcc = wrapGCC {
libc = bootstrapGlibc;
binutils = firstBinutils;
coreutils = bootstrapTools;
};
inherit fetchurl;
};
# 4) These are the packages that we can build with the 2nd
# stdenv. We only need Glibc (in step 5).
stdenvLinuxBoot2Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot2;
};
# 5) Build Glibc with the bootstrap tools. The result is the full,
# dynamically linked, final Glibc.
stdenvLinuxGlibc = stdenvLinuxBoot2Pkgs.glibc;
# 6) Construct a third stdenv identical to the 2nd, except that
# this one uses the Glibc built in step 3. It still uses
# the recent binutils and rest of the bootstrap tools, including GCC.
stdenvLinuxBoot3 = stdenvBootFun {
gcc = wrapGCC {
binutils = stdenvLinuxBoot1Pkgs.binutils;
coreutils = bootstrapTools;
libc = stdenvLinuxGlibc;
};
overrides = {
glibc = stdenvLinuxGlibc;
inherit (stdenvLinuxBoot1Pkgs) perl;
};
inherit fetchurl;
};
# 7) The packages that can be built using the third stdenv.
stdenvLinuxBoot3Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot3;
};
gccWithStaticLibs = stdenvLinuxBoot3Pkgs.gcc.gcc.override (rec {
ppl = stdenvLinuxBoot3Pkgs.ppl.override {
static = true;
gmpxx = stdenvLinuxBoot3Pkgs.gmpxx.override {
static = true;
};
};
cloogppl = stdenvLinuxBoot3Pkgs.cloogppl.override {
inherit ppl;
static = true;
};
});
# 8) Construct a fourth 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 from the
# bootstrap tools.
stdenvLinuxBoot4 = stdenvBootFun {
gcc = wrapGCC rec {
inherit (stdenvLinuxBoot3Pkgs) binutils;
coreutils = bootstrapTools;
libc = stdenvLinuxGlibc;
gcc = gccWithStaticLibs;
name = "";
};
overrides = {
inherit (stdenvLinuxBoot1Pkgs) perl;
};
inherit fetchurl;
};
# 9) The packages that can be built using the fourth stdenv.
stdenvLinuxBoot4Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot4;
};
# 10) Construct the final stdenv. It uses the Glibc, GCC and
# Binutils built above, and adds in dynamically linked versions
# of all other tools.
#
# When updating stdenvLinux, make sure that the result has no
# dependency (`nix-store -qR') on bootstrapTools or the
# first binutils built.
stdenvLinux = import ../generic rec {
name = "stdenv-linux";
inherit system;
preHook = builtins.toFile "prehook.sh" commonPreHook;
initialPath =
((import ../common-path.nix) {pkgs = stdenvLinuxBoot4Pkgs;})
++ [stdenvLinuxBoot4Pkgs.patchelf];
gcc = wrapGCC rec {
inherit (stdenvLinuxBoot3Pkgs) binutils;
inherit (stdenvLinuxBoot4Pkgs) coreutils;
libc = stdenvLinuxGlibc;
gcc = gccWithStaticLibs;
shell = stdenvLinuxBoot4Pkgs.bash + "/bin/bash";
name = "";
};
shell = stdenvLinuxBoot4Pkgs.bash + "/bin/bash";
fetchurlBoot = fetchurl;
extraAttrs = {
inherit (stdenvLinuxBoot3Pkgs) glibc;
inherit platform;
};
overrides = {
inherit gcc;
inherit (stdenvLinuxBoot3Pkgs) binutils glibc;
inherit (stdenvLinuxBoot4Pkgs)
gzip bzip2 bash coreutils diffutils findutils gawk
gnumake gnused gnutar gnugrep gnupatch patchelf
attr acl;
};
};
}