mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-01-15 01:15:51 +00:00
b470a6b212
This change allows building new gcc during bootstrap without fear of
pulling in outdated libstdc++.so after g++ switched from bootstrapTools
to freshly built g++.
Noticed when tried to add early bootstrap stage to rebuild `gcc` before
`glibc` is fully untangled from `bootstrapTools` as a failure to built
`binutils`:
ld: dwp.o: in function `__gnu_cxx::new_allocator<gold::Dwp_output_file::Contribution>::allocate(unsigned long, void const*)':
/nix/store/...-gcc-11.3.0/include/c++/11.3.0/ext/new_allocator.h:116: undefined reference to `std::__throw_bad_array_new_length()'
The change survives existing bootstrap and unblockes early `gcc` bootstrap.
71 lines
2.1 KiB
Bash
71 lines
2.1 KiB
Bash
# Unpack the bootstrap tools tarball.
|
|
echo Unpacking the bootstrap tools...
|
|
$builder mkdir $out
|
|
< $tarball $builder unxz | $builder tar x -C $out
|
|
|
|
# Set the ELF interpreter / RPATH in the bootstrap binaries.
|
|
echo Patching the bootstrap tools...
|
|
|
|
if test -f $out/lib/ld.so.?; then
|
|
# MIPS case
|
|
LD_BINARY=$out/lib/ld.so.?
|
|
elif test -f $out/lib/ld64.so.?; then
|
|
# ppc64(le)
|
|
LD_BINARY=$out/lib/ld64.so.?
|
|
else
|
|
# i686, x86_64 and armv5tel
|
|
LD_BINARY=$out/lib/ld-*so.?
|
|
fi
|
|
|
|
# path to version-specific libraries, like libstdc++.so
|
|
LIBSTDCXX_SO_DIR=$(echo $out/lib/gcc/*/*)
|
|
|
|
# Move version-specific libraries out to avoid library mix when we
|
|
# upgrade gcc.
|
|
# TODO(trofi): update bootstrap tarball script and tarballs to put them
|
|
# into expected location directly.
|
|
LD_LIBRARY_PATH=$out/lib $LD_BINARY $out/bin/mv $out/lib/libstdc++.* $LIBSTDCXX_SO_DIR/
|
|
|
|
# On x86_64, ld-linux-x86-64.so.2 barfs on patchelf'ed programs. So
|
|
# use a copy of patchelf.
|
|
LD_LIBRARY_PATH=$out/lib $LD_BINARY $out/bin/cp $out/bin/patchelf .
|
|
|
|
for i in $out/bin/* $out/libexec/gcc/*/*/*; do
|
|
if [ -L "$i" ]; then continue; fi
|
|
if [ -z "${i##*/liblto*}" ]; then continue; fi
|
|
echo patching "$i"
|
|
LD_LIBRARY_PATH=$out/lib:$LIBSTDCXX_SO_DIR $LD_BINARY \
|
|
./patchelf --set-interpreter $LD_BINARY --set-rpath $out/lib:$LIBSTDCXX_SO_DIR --force-rpath "$i"
|
|
done
|
|
|
|
for i in $out/lib/librt-*.so $out/lib/libpcre*; do
|
|
if [ -L "$i" ]; then continue; fi
|
|
echo patching "$i"
|
|
$out/bin/patchelf --set-rpath $out/lib --force-rpath "$i"
|
|
done
|
|
|
|
export PATH=$out/bin
|
|
|
|
# Provide some additional symlinks.
|
|
ln -s bash $out/bin/sh
|
|
ln -s bzip2 $out/bin/bunzip2
|
|
|
|
# Provide a gunzip script.
|
|
cat > $out/bin/gunzip <<EOF
|
|
#!$out/bin/sh
|
|
exec $out/bin/gzip -d "\$@"
|
|
EOF
|
|
chmod +x $out/bin/gunzip
|
|
|
|
# Provide fgrep/egrep.
|
|
echo "#! $out/bin/sh" > $out/bin/egrep
|
|
echo "exec $out/bin/grep -E \"\$@\"" >> $out/bin/egrep
|
|
echo "#! $out/bin/sh" > $out/bin/fgrep
|
|
echo "exec $out/bin/grep -F \"\$@\"" >> $out/bin/fgrep
|
|
|
|
# Provide xz (actually only xz -d will work).
|
|
echo "#! $out/bin/sh" > $out/bin/xz
|
|
echo "exec $builder unxz \"\$@\"" >> $out/bin/xz
|
|
|
|
chmod +x $out/bin/egrep $out/bin/fgrep $out/bin/xz
|