nixpkgs/pkgs/stdenv/linux/make-bootstrap-tools.nix
Alyssa Ross 5643714dea stdenvBootstrapTools: inherit {cross,local}System
It's expected that attributes in the top-level package set will all use
that package set, but this wasn't the case for the bootstrap tools.
This led some very confusing behaviour:

- pkgsMusl.stdenvBootstrapTools would build glibc bootstrap tools
- stdenvBootstrapTools was _always_ cross compiled, even if
  Nixpkgs wasn't, because it always set crossSystem.  This also didn't
  match the behaviour of using make-bootstrap-tools.nix as an
  entrypoint, where crossSystem would default to null.

For the Linux stdenv, I've made the ideal fix, which is to make pkgs an
argument rather than taking the arguments for pkgs, and then
re-importing it.  This means it'll always use exactly the same package
set that's calling it, and should also mean faster eval due to not
importing Nixpkgs twice.

The Darwin stdenv is more complicated, and I'm not able to easily test
it, so I wasn't confident in making the same fix there.  Instead, I've
just made sure crossSystem and localSystem are set to the correct values
so they're not always cross compiled and match the parent package set's.
It would still be preferable if somebody could make Darwin's
make-bootstrap-tools.nix take pkgs as an argument, rather than all the
arguments for pkgs.
2022-05-31 14:32:27 +00:00

306 lines
11 KiB
Nix

{ pkgs ? import ../../.. {} }:
let
libc = pkgs.stdenv.cc.libc;
in with pkgs; rec {
coreutilsMinimal = coreutils.override (args: {
# We want coreutils without ACL/attr support.
aclSupport = false;
attrSupport = false;
# Our tooling currently can't handle scripts in bin/, only ELFs and symlinks.
singleBinary = "symlinks";
});
tarMinimal = gnutar.override { acl = null; };
busyboxMinimal = busybox.override {
useMusl = !stdenv.targetPlatform.isRiscV;
enableStatic = true;
enableMinimal = true;
extraConfig = ''
CONFIG_ASH y
CONFIG_ASH_ECHO y
CONFIG_ASH_TEST y
CONFIG_ASH_OPTIMIZE_FOR_SIZE y
CONFIG_MKDIR y
CONFIG_TAR y
CONFIG_UNXZ y
'';
};
bootGCC = gcc.cc.override { enableLTO = false; };
bootBinutils = binutils.bintools.override {
withAllTargets = false;
# Don't need two linkers, disable whatever's not primary/default.
enableGold = false;
# bootstrap is easier w/static
enableShared = false;
};
build =
stdenv.mkDerivation {
name = "stdenv-bootstrap-tools";
meta = {
# Increase priority to unblock nixpkgs-unstable
# https://github.com/NixOS/nixpkgs/pull/104679#issuecomment-732267288
schedulingPriority = 200;
};
nativeBuildInputs = [ buildPackages.nukeReferences buildPackages.cpio ];
buildCommand = ''
set -x
mkdir -p $out/bin $out/lib $out/libexec
'' + (if (stdenv.hostPlatform.libc == "glibc") then ''
# Copy what we need of Glibc.
cp -d ${libc.out}/lib/ld*.so* $out/lib
cp -d ${libc.out}/lib/libc*.so* $out/lib
cp -d ${libc.out}/lib/libc_nonshared.a $out/lib
cp -d ${libc.out}/lib/libm*.so* $out/lib
cp -d ${libc.out}/lib/libdl*.so* $out/lib
cp -d ${libc.out}/lib/librt*.so* $out/lib
cp -d ${libc.out}/lib/libpthread*.so* $out/lib
cp -d ${libc.out}/lib/libnsl*.so* $out/lib
cp -d ${libc.out}/lib/libutil*.so* $out/lib
cp -d ${libc.out}/lib/libnss*.so* $out/lib
cp -d ${libc.out}/lib/libresolv*.so* $out/lib
cp -d ${libc.out}/lib/crt?.o $out/lib
# Hacky compat with our current unpack-bootstrap-tools.sh
ln -s librt.so "$out"/lib/librt-dummy.so
cp -rL ${libc.dev}/include $out
chmod -R u+w "$out"
# libc can contain linker scripts: find them, copy their deps,
# and get rid of absolute paths (nuke-refs would make them useless)
local lScripts=$(grep --files-with-matches --max-count=1 'GNU ld script' -R "$out/lib")
cp -d -t "$out/lib/" $(cat $lScripts | tr " " "\n" | grep -F '${libc.out}' | sort -u)
for f in $lScripts; do
substituteInPlace "$f" --replace '${libc.out}/lib/' ""
done
# Hopefully we won't need these.
rm -rf $out/include/mtd $out/include/rdma $out/include/sound $out/include/video
find $out/include -name .install -exec rm {} \;
find $out/include -name ..install.cmd -exec rm {} \;
mv $out/include $out/include-glibc
'' else if (stdenv.hostPlatform.libc == "musl") then ''
# Copy what we need from musl
cp ${libc.out}/lib/* $out/lib
cp -rL ${libc.dev}/include $out
chmod -R u+w "$out"
rm -rf $out/include/mtd $out/include/rdma $out/include/sound $out/include/video
find $out/include -name .install -exec rm {} \;
find $out/include -name ..install.cmd -exec rm {} \;
mv $out/include $out/include-libc
'' else throw "unsupported libc for bootstrap tools")
+ ''
# Copy coreutils, bash, etc.
cp -d ${coreutilsMinimal.out}/bin/* $out/bin
(cd $out/bin && rm vdir dir sha*sum pinky factor pathchk runcon shuf who whoami shred users)
cp ${bash.out}/bin/bash $out/bin
cp ${findutils.out}/bin/find $out/bin
cp ${findutils.out}/bin/xargs $out/bin
cp -d ${diffutils.out}/bin/* $out/bin
cp -d ${gnused.out}/bin/* $out/bin
cp -d ${gnugrep.out}/bin/grep $out/bin
cp ${gawk.out}/bin/gawk $out/bin
cp -d ${gawk.out}/bin/awk $out/bin
cp ${tarMinimal.out}/bin/tar $out/bin
cp ${gzip.out}/bin/gzip $out/bin
cp ${bzip2.bin}/bin/bzip2 $out/bin
cp -d ${gnumake.out}/bin/* $out/bin
cp -d ${patch}/bin/* $out/bin
cp ${patchelf}/bin/* $out/bin
cp -d ${gnugrep.pcre.out}/lib/libpcre*.so* $out/lib # needed by grep
# Copy what we need of GCC.
cp -d ${bootGCC.out}/bin/gcc $out/bin
cp -d ${bootGCC.out}/bin/cpp $out/bin
cp -d ${bootGCC.out}/bin/g++ $out/bin
cp -d ${bootGCC.lib}/lib/libgcc_s.so* $out/lib
cp -d ${bootGCC.lib}/lib/libstdc++.so* $out/lib
cp -d ${bootGCC.out}/lib/libssp.a* $out/lib
cp -d ${bootGCC.out}/lib/libssp_nonshared.a $out/lib
cp -rd ${bootGCC.out}/lib/gcc $out/lib
chmod -R u+w $out/lib
rm -f $out/lib/gcc/*/*/include*/linux
rm -f $out/lib/gcc/*/*/include*/sound
rm -rf $out/lib/gcc/*/*/include*/root
rm -f $out/lib/gcc/*/*/include-fixed/asm
rm -rf $out/lib/gcc/*/*/plugin
#rm -f $out/lib/gcc/*/*/*.a
cp -rd ${bootGCC.out}/libexec/* $out/libexec
chmod -R u+w $out/libexec
rm -rf $out/libexec/gcc/*/*/plugin
mkdir -p $out/include
cp -rd ${bootGCC.out}/include/c++ $out/include
chmod -R u+w $out/include
rm -rf $out/include/c++/*/ext/pb_ds
rm -rf $out/include/c++/*/ext/parallel
cp -d ${gmpxx.out}/lib/libgmp*.so* $out/lib
cp -d ${mpfr.out}/lib/libmpfr*.so* $out/lib
cp -d ${libmpc.out}/lib/libmpc*.so* $out/lib
cp -d ${zlib.out}/lib/libz.so* $out/lib
cp -d ${libelf}/lib/libelf.so* $out/lib
'' + lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
# These needed for cross but not native tools because the stdenv
# GCC has certain things built in statically. See
# pkgs/stdenv/linux/default.nix for the details.
cp -d ${isl_0_20.out}/lib/libisl*.so* $out/lib
'' + lib.optionalString (stdenv.hostPlatform.isRiscV) ''
# libatomic is required on RiscV platform for C/C++ atomics and pthread
# even though they may be translated into native instructions.
cp -d ${bootGCC.out}/lib/libatomic.a* $out/lib
'' + ''
cp -d ${bzip2.out}/lib/libbz2.so* $out/lib
# Copy binutils.
for i in as ld ar ranlib nm strip readelf objdump; do
cp ${bootBinutils.out}/bin/$i $out/bin
done
cp -r '${lib.getLib binutils.bintools}'/lib/* "$out/lib/"
chmod -R u+w $out
# Strip executables even further.
for i in $out/bin/* $out/libexec/gcc/*/*/*; do
if test -x $i -a ! -L $i; then
chmod +w $i
$STRIP -s $i || true
fi
done
nuke-refs $out/bin/*
nuke-refs $out/lib/*
nuke-refs $out/lib/*/*
nuke-refs $out/libexec/gcc/*/*/*
nuke-refs $out/lib/gcc/*/*/*
nuke-refs $out/lib/gcc/*/*/include-fixed/*{,/*}
mkdir $out/.pack
mv $out/* $out/.pack
mv $out/.pack $out/pack
mkdir $out/on-server
XZ_OPT="-9 -e" tar cvJf $out/on-server/bootstrap-tools.tar.xz --hard-dereference --sort=name --numeric-owner --owner=0 --group=0 --mtime=@1 -C $out/pack .
cp ${busyboxMinimal}/bin/busybox $out/on-server
chmod u+w $out/on-server/busybox
nuke-refs $out/on-server/busybox
''; # */
# The result should not contain any references (store paths) so
# that we can safely copy them out of the store and to other
# locations in the store.
allowedReferences = [];
};
dist = stdenv.mkDerivation {
name = "stdenv-bootstrap-tools";
meta = {
# Increase priority to unblock nixpkgs-unstable
# https://github.com/NixOS/nixpkgs/pull/104679#issuecomment-732267288
schedulingPriority = 200;
};
buildCommand = ''
mkdir -p $out/nix-support
echo "file tarball ${build}/on-server/bootstrap-tools.tar.xz" >> $out/nix-support/hydra-build-products
echo "file busybox ${build}/on-server/busybox" >> $out/nix-support/hydra-build-products
'';
};
bootstrapFiles = {
# Make them their own store paths to test that busybox still works when the binary is named /nix/store/HASH-busybox
busybox = runCommand "busybox" {} "cp ${build}/on-server/busybox $out";
bootstrapTools = runCommand "bootstrap-tools.tar.xz" {} "cp ${build}/on-server/bootstrap-tools.tar.xz $out";
};
bootstrapTools =
let extraAttrs = lib.optionalAttrs
config.contentAddressedByDefault
{
__contentAddressed = true;
outputHashAlgo = "sha256";
outputHashMode = "recursive";
};
in
if (stdenv.hostPlatform.libc == "glibc") then
import ./bootstrap-tools {
inherit (stdenv.buildPlatform) system; # Used to determine where to build
inherit bootstrapFiles extraAttrs;
}
else if (stdenv.hostPlatform.libc == "musl") then
import ./bootstrap-tools-musl {
inherit (stdenv.buildPlatform) system; # Used to determine where to build
inherit bootstrapFiles extraAttrs;
}
else throw "unsupported libc";
test = derivation {
name = "test-bootstrap-tools";
inherit (stdenv.hostPlatform) system; # We cannot "cross test"
builder = bootstrapFiles.busybox;
args = [ "ash" "-e" "-c" "eval \"$buildCommand\"" ];
buildCommand = ''
export PATH=${bootstrapTools}/bin
ls -l
mkdir $out
mkdir $out/bin
sed --version
find --version
diff --version
patch --version
make --version
awk --version
grep --version
gcc --version
'' + lib.optionalString (stdenv.hostPlatform.libc == "glibc") ''
ldlinux=$(echo ${bootstrapTools}/lib/${builtins.baseNameOf binutils.dynamicLinker})
export CPP="cpp -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools}"
export CC="gcc -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${bootstrapTools}/lib"
export CXX="g++ -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${bootstrapTools}/lib"
'' + lib.optionalString (stdenv.hostPlatform.libc == "musl") ''
ldmusl=$(echo ${bootstrapTools}/lib/ld-musl*.so.?)
export CPP="cpp -idirafter ${bootstrapTools}/include-libc -B${bootstrapTools}"
export CC="gcc -idirafter ${bootstrapTools}/include-libc -B${bootstrapTools} -Wl,-dynamic-linker,$ldmusl -Wl,-rpath,${bootstrapTools}/lib"
export CXX="g++ -idirafter ${bootstrapTools}/include-libc -B${bootstrapTools} -Wl,-dynamic-linker,$ldmusl -Wl,-rpath,${bootstrapTools}/lib"
'' + ''
echo '#include <stdio.h>' >> foo.c
echo '#include <limits.h>' >> foo.c
echo 'int main() { printf("Hello World\\n"); return 0; }' >> foo.c
$CC -o $out/bin/foo foo.c
$out/bin/foo
echo '#include <iostream>' >> bar.cc
echo 'int main() { std::cout << "Hello World\\n"; }' >> bar.cc
$CXX -v -o $out/bin/bar bar.cc
$out/bin/bar
tar xvf ${hello.src}
cd hello-*
./configure --prefix=$out
make
make install
'';
};
}