forked from mirrors/nixpkgs
Refactor stage handling in stdenvLinux
Make stages explicit and generalize the pattern of having an stdenv and a pkgs collection for all stages to a common stage generating function called stageFun. Rewrite all stage handling with this new function. This commit doesn't change the outhash (or drvhash) of the stdenv.
This commit is contained in:
Gergely Risko
parent
142970b9eb
commit
350022247a
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@ -35,8 +35,8 @@ rec {
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# The bootstrap process proceeds in several steps.
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# 1) Create a standard environment by downloading pre-built binaries
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# of coreutils, GCC, etc.
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# Create a standard environment by downloading pre-built binaries of
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# coreutils, GCC, etc.
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# Download and unpack the bootstrap tools (coreutils, GCC, Glibc, ...).
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@ -67,11 +67,13 @@ rec {
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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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# the bootstrap. In all stages, we build an stdenv and the package
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# set that can be built with that stdenv.
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stageFun =
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{gcc, extraAttrs ? {}, overrides ? (pkgs: {}), extraPath ? []}:
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let thisStdenv = import ../generic {
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let
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thisStdenv = import ../generic {
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inherit system config;
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name = "stdenv-linux-boot";
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preHook =
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@ -84,7 +86,7 @@ rec {
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shell = "${bootstrapTools}/bin/sh";
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initialPath = [bootstrapTools] ++ extraPath;
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fetchurlBoot = import ../../build-support/fetchurl {
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stdenv = stdenvLinuxBoot0;
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stdenv = stage0.stdenv;
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curl = bootstrapTools;
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};
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inherit gcc;
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@ -93,26 +95,32 @@ rec {
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extraAttrs = extraAttrs // { inherit platform; };
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overrides = pkgs: (overrides pkgs) // { fetchurl = thisStdenv.fetchurlBoot; };
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};
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in thisStdenv;
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thisPkgs = allPackages {
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inherit system platform;
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bootStdenv = thisStdenv;
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};
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in { stdenv = thisStdenv; pkgs = thisPkgs; };
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# Build a dummy stdenv with no GCC or working fetchurl. This is
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# because we need a stdenv to build the GCC wrapper and fetchurl.
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stdenvLinuxBoot0 = stdenvBootFun {
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stage0 = stageFun {
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gcc = "/no-such-path";
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};
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# The Glibc include directory cannot have the same prefix as the GCC
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# include directory, since GCC gets confused otherwise (it will
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# search the Glibc headers before the GCC headers). So create a
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# dummy Glibc.
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bootstrapGlibc = stdenvLinuxBoot0.mkDerivation {
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name = "bootstrap-glibc";
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buildCommand = ''
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mkdir -p $out
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ln -s ${bootstrapTools}/lib $out/lib
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ln -s ${bootstrapTools}/include-glibc $out/include
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'';
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overrides = pkgs: {
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# The Glibc include directory cannot have the same prefix as the
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# GCC include directory, since GCC gets confused otherwise (it
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# will search the Glibc headers before the GCC headers). So
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# create a dummy Glibc here, which will be used in the stdenv of
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# stage1.
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glibc = stage0.stdenv.mkDerivation {
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name = "bootstrap-glibc";
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buildCommand = ''
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mkdir -p $out
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ln -s ${bootstrapTools}/lib $out/lib
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ln -s ${bootstrapTools}/include-glibc $out/include
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'';
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};
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};
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};
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@ -124,78 +132,58 @@ rec {
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nativeTools = false;
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nativeLibc = false;
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inherit gcc binutils coreutils libc name;
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stdenv = stdenvLinuxBoot0;
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stdenv = stage0.stdenv;
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};
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# Create the first "real" standard environment. This one consists
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# of bootstrap tools only, and a minimal Glibc to keep the GCC
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# configure script happy.
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stdenvLinuxBoot1 = stdenvBootFun {
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stage1 = stageFun {
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gcc = wrapGCC {
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gcc = bootstrapTools;
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libc = bootstrapGlibc;
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libc = stage0.pkgs.glibc;
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binutils = bootstrapTools;
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coreutils = bootstrapTools;
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name = "bootstrap-gcc-wrapper";
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};
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# Rebuild binutils to use from stage2 onwards.
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overrides = pkgs: {
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binutils = pkgs.binutils.override { gold = false; };
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};
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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 binutils, because recent Glibcs
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# require recent Binutils, and those in bootstrap-tools may
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# be too old.
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stdenvLinuxBoot1Pkgs = allPackages {
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inherit system platform;
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bootStdenv = stdenvLinuxBoot1;
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};
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binutils1 = stdenvLinuxBoot1Pkgs.binutils.override { gold = false; };
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# 3) 2nd stdenv that we will use to build only Glibc.
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stdenvLinuxBoot2 = stdenvBootFun {
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# 2nd stdenv that contains our own rebuilt binutils and is used for
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# compiling our own Glibc.
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stage2 = stageFun {
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gcc = wrapGCC {
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gcc = bootstrapTools;
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libc = bootstrapGlibc;
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binutils = binutils1;
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libc = stage0.pkgs.glibc;
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binutils = stage1.pkgs.binutils;
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coreutils = bootstrapTools;
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name = "bootstrap-gcc-wrapper";
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};
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overrides = pkgs: {
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inherit (stdenvLinuxBoot1Pkgs) perl;
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inherit (stage1.pkgs) perl;
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# This also contains the full, dynamically linked, final Glibc.
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};
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};
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# 4) These are the packages that we can build with the 2nd
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# stdenv.
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stdenvLinuxBoot2Pkgs = allPackages {
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inherit system platform;
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bootStdenv = stdenvLinuxBoot2;
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};
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# 5) Build Glibc with the bootstrap tools. The result is the full,
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# dynamically linked, final Glibc.
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stdenvLinuxGlibc = stdenvLinuxBoot2Pkgs.glibc;
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# 6) Construct a third stdenv identical to the 2nd, except that this
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# one uses the Glibc built in step 5. It still uses the recent
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# binutils and rest of the bootstrap tools, including GCC.
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stdenvLinuxBoot3 = stdenvBootFun {
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# Construct a third stdenv identical to the 2nd, except that this
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# one uses the rebuilt Glibc from stage2. It still uses the recent
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# binutils and rest of the bootstrap tools, including GCC.
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stage3 = stageFun {
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gcc = wrapGCC {
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gcc = bootstrapTools;
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libc = stdenvLinuxGlibc;
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binutils = binutils1;
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libc = stage2.pkgs.glibc;
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binutils = stage1.pkgs.binutils;
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coreutils = bootstrapTools;
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name = "bootstrap-gcc-wrapper";
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};
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overrides = pkgs: {
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glibc = stdenvLinuxGlibc;
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inherit (stdenvLinuxBoot1Pkgs) perl;
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inherit (stage2.pkgs) glibc perl;
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# Link GCC statically against GMP etc. This makes sense because
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# these builds of the libraries are only used by GCC, so it
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# reduces the size of the stdenv closure.
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@ -207,52 +195,37 @@ rec {
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ppl = pkgs.ppl.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
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};
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extraAttrs = {
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glibc = stdenvLinuxGlibc; # Required by gcc47 build
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glibc = stage2.pkgs.glibc; # Required by gcc47 build
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};
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extraPath = [ stdenvLinuxBoot1Pkgs.paxctl ];
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extraPath = [ stage1.pkgs.paxctl ];
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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 platform;
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bootStdenv = stdenvLinuxBoot3;
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};
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# 8) Construct a fourth stdenv identical to the second, except that
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# this one uses the new GCC from step 7. The other tools
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# (e.g. coreutils) are still from the bootstrap tools.
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stdenvLinuxBoot4 = stdenvBootFun {
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gcc = wrapGCC rec {
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gcc = stdenvLinuxBoot3Pkgs.gcc.gcc;
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libc = stdenvLinuxGlibc;
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binutils = binutils1;
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# Construct a fourth stdenv that uses the new GCC. But coreutils is
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# still from the bootstrap tools.
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stage4 = stageFun {
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gcc = wrapGCC {
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gcc = stage3.pkgs.gcc.gcc;
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libc = stage2.pkgs.glibc;
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binutils = stage1.pkgs.binutils;
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coreutils = bootstrapTools;
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name = "";
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};
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extraPath = [ stdenvLinuxBoot3Pkgs.xz ];
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extraPath = [ stage3.pkgs.xz ];
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overrides = pkgs: {
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inherit (stdenvLinuxBoot1Pkgs) perl;
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inherit (stdenvLinuxBoot3Pkgs) gettext gnum4 gmp;
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inherit (stage1.pkgs) perl;
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inherit (stage3.pkgs) gettext gnum4 gmp glibc;
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};
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};
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# 9) The packages that can be built using the fourth stdenv.
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stdenvLinuxBoot4Pkgs = allPackages {
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inherit system platform;
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bootStdenv = stdenvLinuxBoot4;
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};
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# 10) Construct the final stdenv. It uses the Glibc and GCC, and
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# adds in a new binutils that doesn't depend on bootstrap-tools,
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# as well as dynamically linked versions of all other tools.
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# Construct the final stdenv. It uses the Glibc and GCC, and adds
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# in a new binutils that doesn't depend on bootstrap-tools, as well
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# as dynamically linked versions of all other tools.
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#
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# When updating stdenvLinux, make sure that the result has no
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# dependency (`nix-store -qR') on bootstrapTools or the
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# first binutils built.
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# When updating stdenvLinux, make sure that the result has no
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# dependency (`nix-store -qR') on bootstrapTools or the first
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# binutils built.
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stdenvLinux = import ../generic rec {
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inherit system config;
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@ -265,31 +238,31 @@ rec {
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'';
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initialPath =
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((import ../common-path.nix) {pkgs = stdenvLinuxBoot4Pkgs;})
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++ [stdenvLinuxBoot4Pkgs.patchelf stdenvLinuxBoot4Pkgs.paxctl ];
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((import ../common-path.nix) {pkgs = stage4.pkgs;})
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++ [stage4.pkgs.patchelf stage4.pkgs.paxctl ];
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shell = stdenvLinuxBoot4Pkgs.bash + "/bin/bash";
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shell = stage4.pkgs.bash + "/bin/bash";
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gcc = (wrapGCC rec {
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gcc = stdenvLinuxBoot4.gcc.gcc;
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libc = stdenvLinuxGlibc;
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inherit (stdenvLinuxBoot4Pkgs) binutils coreutils;
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gcc = stage4.stdenv.gcc.gcc;
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libc = stage4.pkgs.glibc;
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inherit (stage4.pkgs) binutils coreutils;
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name = "";
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}).override { inherit shell; };
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fetchurlBoot = stdenvLinuxBoot0.fetchurlBoot;
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fetchurlBoot = stage4.stdenv.fetchurl;
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extraAttrs = {
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inherit (stdenvLinuxBoot3Pkgs) glibc;
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inherit (stage4.pkgs) glibc;
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inherit platform bootstrapTools;
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shellPackage = stdenvLinuxBoot4Pkgs.bash;
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shellPackage = stage4.pkgs.bash;
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};
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overrides = pkgs: {
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inherit gcc;
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inherit (stdenvLinuxBoot3Pkgs) glibc;
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inherit (stdenvLinuxBoot4Pkgs) binutils;
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inherit (stdenvLinuxBoot4Pkgs)
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inherit (stage3.pkgs) glibc;
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inherit (stage4.pkgs) binutils;
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inherit (stage4.pkgs)
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gzip bzip2 xz bash coreutils diffutils findutils gawk
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gnumake gnused gnutar gnugrep gnupatch patchelf
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attr acl paxctl;
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