core/pkgs/stdenv/linux/make-bootstrap-tools.nix
2024-05-13 11:34:52 -04:00

295 lines
11 KiB
Nix

{ pkgs ? import ../../.. {} }:
let
libc = pkgs.stdenv.cc.libc;
patchelf = pkgs.patchelf.overrideAttrs(previousAttrs: {
NIX_CFLAGS_COMPILE = (previousAttrs.NIX_CFLAGS_COMPILE or []) ++ [ "-static-libgcc" "-static-libstdc++" ];
NIX_CFLAGS_LINK = (previousAttrs.NIX_CFLAGS_LINK or []) ++ [ "-static-libgcc" "-static-libstdc++" ];
});
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 = lib.meta.availableOn stdenv.hostPlatform musl;
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 =
let
# ${libc.src}/sysdeps/unix/sysv/linux/loongarch/lp64/libnsl.abilist does not exist!
withLibnsl = !stdenv.hostPlatform.isLoongArch64;
in
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
'' + lib.optionalString withLibnsl ''
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
# Copy all runtime files to enable non-PIE, PIE, static PIE and profile-generated builds
cp -d ${libc.out}/lib/*.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-wrapped $out/bin/gzip
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.pcre2.out}/lib/libpcre2*.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 ${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 ${isl.out}/lib/libisl*.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
'' + 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 = [];
};
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 $out/bin
sed --version
find --version
diff --version
patch --version
make --version
awk --version
grep --version
gcc --version
'' + lib.optionalString (stdenv.hostPlatform.libc == "glibc") ''
rtld=$(echo ${bootstrapTools}/lib/${builtins.unsafeDiscardStringContext /* only basename */ (builtins.baseNameOf binutils.dynamicLinker)})
libc_includes=${bootstrapTools}/include-glibc
'' + lib.optionalString (stdenv.hostPlatform.libc == "musl") ''
rtld=$(echo ${bootstrapTools}/lib/ld-musl*.so.?)
libc_includes=${bootstrapTools}/include-libc
'' + ''
# path to version-specific libraries, like libstdc++.so
cxx_libs=$(echo ${bootstrapTools}/lib/gcc/*/*)
export CPP="cpp -idirafter $libc_includes -B${bootstrapTools}"
export CC="gcc -idirafter $libc_includes -B${bootstrapTools} -Wl,-dynamic-linker,$rtld -Wl,-rpath,${bootstrapTools}/lib -Wl,-rpath,$cxx_libs"
export CXX="g++ -idirafter $libc_includes -B${bootstrapTools} -Wl,-dynamic-linker,$rtld -Wl,-rpath,${bootstrapTools}/lib -Wl,-rpath,$cxx_libs"
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
'';
};
}