nixpkgs/pkgs/stdenv/linux/default.nix

305 lines
9.4 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 ? builtins.currentSystem
, allPackages ? import ../../top-level/all-packages.nix
, platform ? null, config ? {} }:
rec {
lib = import ../../../lib;
bootstrapFiles =
if system == "i686-linux" then import ./bootstrap/i686.nix
else if system == "x86_64-linux" then import ./bootstrap/x86_64.nix
else if system == "armv5tel-linux" then import ./bootstrap/armv5tel.nix
else if system == "armv6l-linux" then import ./bootstrap/armv6l.nix
else if system == "armv7l-linux" then import ./bootstrap/armv6l.nix
else if system == "mips64el-linux" then import ./bootstrap/loongson2f.nix
else abort "unsupported platform for the pure Linux stdenv";
commonPreHook =
''
export NIX_ENFORCE_PURITY=1
${if system == "x86_64-linux" then "NIX_LIB64_IN_SELF_RPATH=1" else ""}
${if system == "mips64el-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.
# Download and unpack the bootstrap tools (coreutils, GCC, Glibc, ...).
bootstrapTools = derivation {
name = "bootstrap-tools";
builder = bootstrapFiles.sh;
args =
if system == "armv5tel-linux" || system == "armv6l-linux"
|| system == "armv7l-linux"
then [ ./scripts/unpack-bootstrap-tools-arm.sh ]
else [ ./scripts/unpack-bootstrap-tools.sh ];
# FIXME: get rid of curl.
inherit (bootstrapFiles) bzip2 mkdir curl cpio;
tarball = import <nix/fetchurl.nix> {
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 ? (pkgs: {}), extraBuildInputs ? [], fetchurl }:
import ../generic {
inherit system config extraBuildInputs;
name = "stdenv-linux-boot";
preHook =
''
# 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 ];
fetchurlBoot = fetchurl;
inherit gcc;
# Having the proper 'platform' in all the stdenvs allows getting proper
# linuxHeaders for example.
extraAttrs = extraAttrs // { inherit platform; };
overrides = pkgs: (overrides pkgs) // {
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 = ''
mkdir -p $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" }:
lib.makeOverridable (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.
stdenvLinuxBoot1Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot1;
};
binutils1 = stdenvLinuxBoot1Pkgs.binutils.override { gold = false; };
# 3) 2nd stdenv that we will use to build only Glibc.
stdenvLinuxBoot2 = stdenvBootFun {
gcc = wrapGCC {
libc = bootstrapGlibc;
binutils = binutils1;
coreutils = bootstrapTools;
};
overrides = pkgs: {
inherit (stdenvLinuxBoot1Pkgs) perl;
};
inherit fetchurl;
};
# 4) These are the packages that we can build with the 2nd
# stdenv.
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 5. It still uses the recent
# binutils and rest of the bootstrap tools, including GCC.
stdenvLinuxBoot3 = stdenvBootFun {
gcc = wrapGCC {
binutils = binutils1;
coreutils = bootstrapTools;
libc = stdenvLinuxGlibc;
};
overrides = pkgs: {
glibc = stdenvLinuxGlibc;
inherit (stdenvLinuxBoot1Pkgs) perl;
# Link GCC statically against GMP etc. This makes sense because
# these builds of the libraries are only used by GCC, so it
# reduces the size of the stdenv closure.
gmp = pkgs.gmp.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
mpfr = pkgs.mpfr.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
mpc = pkgs.mpc.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
isl = pkgs.isl.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
cloog = pkgs.cloog.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
ppl = pkgs.ppl.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
};
extraAttrs = {
glibc = stdenvLinuxGlibc; # Required by gcc47 build
};
extraBuildInputs = [ stdenvLinuxBoot2Pkgs.patchelf stdenvLinuxBoot1Pkgs.paxctl ];
inherit fetchurl;
};
# 7) The packages that can be built using the third stdenv.
stdenvLinuxBoot3Pkgs = allPackages {
inherit system platform;
bootStdenv = stdenvLinuxBoot3;
};
# 8) Construct a fourth stdenv identical to the second, except that
# this one uses the new GCC from step 7. The other tools
# (e.g. coreutils) are still from the bootstrap tools.
stdenvLinuxBoot4 = stdenvBootFun {
gcc = wrapGCC rec {
binutils = binutils1;
coreutils = bootstrapTools;
libc = stdenvLinuxGlibc;
gcc = stdenvLinuxBoot3Pkgs.gcc.gcc;
name = "";
};
extraBuildInputs = [ stdenvLinuxBoot2Pkgs.patchelf stdenvLinuxBoot3Pkgs.xz ];
overrides = pkgs: {
inherit (stdenvLinuxBoot1Pkgs) perl;
inherit (stdenvLinuxBoot3Pkgs) gettext gnum4 gmp;
};
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 and GCC, and
# adds in a new binutils that doesn't depend on bootstrap-tools,
# as well as 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 {
inherit system config;
preHook =
''
# Make "strip" produce deterministic output, by setting
# timestamps etc. to a fixed value.
commonStripFlags="--enable-deterministic-archives"
${commonPreHook}
'';
initialPath =
((import ../common-path.nix) {pkgs = stdenvLinuxBoot4Pkgs;});
extraBuildInputs =
[ stdenvLinuxBoot4Pkgs.patchelf stdenvLinuxBoot4Pkgs.paxctl ];
gcc = wrapGCC rec {
inherit (stdenvLinuxBoot4Pkgs) binutils coreutils;
libc = stdenvLinuxGlibc;
gcc = stdenvLinuxBoot4.gcc.gcc;
shell = stdenvLinuxBoot4Pkgs.bash + "/bin/bash";
name = "";
};
shell = stdenvLinuxBoot4Pkgs.bash + "/bin/bash";
fetchurlBoot = fetchurl;
extraAttrs = {
glibc = stdenvLinuxGlibc;
inherit platform bootstrapTools;
shellPackage = stdenvLinuxBoot4Pkgs.bash;
};
overrides = pkgs: {
inherit gcc;
inherit (stdenvLinuxBoot3Pkgs) glibc;
inherit (stdenvLinuxBoot4Pkgs) binutils;
inherit (stdenvLinuxBoot4Pkgs)
gzip bzip2 xz bash coreutils diffutils findutils gawk
gnumake gnused gnutar gnugrep gnupatch patchelf
attr acl paxctl;
};
};
}