nixpkgs/pkgs/stdenv/darwin/unpack-bootstrap-tools-aarch64.sh
a-n-n-a-l-e-e ce789e7e35
llvmPackages_{12,13,14,15,16,17,git}.{libcxx,libcxxabi}: merge libcxxabi into libcxx (#292043)
- merge libcxxabi into libcxx for LLVM 12, 13, 14, 15, 16, 17, and git.
- remove the link time workaround `-lc++ -lc++abi` from 58 packages as it is no longer required.
- fixes https://github.com/NixOS/nixpkgs/issues/166205
- provides alternative fixes for. https://github.com/NixOS/nixpkgs/issues/269548 https://github.com/NixOS/nix/issues/9640
- pkgsCross.x86_64-freebsd builds work again

This change can be represented in 3 stages
1. merge libcxxabi into libcxx -- files: pkgs/development/compilers/llvm/[12, git]/{libcxx, libcxxabi}
2. update stdenv to account for merge -- files: stdenv.{adapters, cc.wrapper, darwin}
3. remove all references to libcxxabi outside of llvm (about 58 packages modified)

### merging libcxxabi into libcxx
- take the union of the libcxxabi and libcxx cmake flags
- eliminate the libcxx-headers-only package - it was only needed to break libcxx <-> libcxxabi circular dependency
- libcxx.cxxabi is removed. external cxxabi (freebsd) will symlink headers / libs into libcxx.
- darwin will re-export the libcxxabi symbols into libcxx so linking `-lc++` is sufficient.
- linux/freebsd `libc++.so` is a linker script `LINK(libc++.so.1, -lc++abi)` making `-lc++` sufficient.
- libcxx/default.nix [12, 17] are identical except for patches and `LIBCXX_ADDITIONAL_LIBRARIES` (only used in 16+)
- git/libcxx/defaul.nix  does not link with -nostdlib when useLLVM is true so flag is removed. this is not much different than before as libcxxabi used -nostdlib where libcxx did not, so libc was linked in anyway.

### stdenv changes
- darwin bootstrap, remove references to libcxxabi and cxxabi
- cc-wrapper: remove c++ link workaround when libcxx.cxxabi doesn't exist (still exists for LLVM pre 12)
- adapter: update overrideLibcxx to account for a pkgs.stdenv that only has libcxx

### 58 package updates
- remove `NIX_LDFLAGS = "-l${stdenv.cc.libcxx.cxxabi.libName}` as no longer needed
- swift, nodejs_v8 remove libcxxabi references in the clang override

https://github.com/NixOS/nixpkgs/pull/292043
2024-03-11 03:53:37 -07:00

58 lines
1.3 KiB
Bash

set -euo pipefail
# Unpack the bootstrap tools tarball.
echo Unpacking the bootstrap tools...
$mkdir $out
$bzip2 -d < $tarball | (cd $out && $cpio -i)
export PATH=$out/bin
# Fix codesign wrapper paths
sed -i \
-e "1c\
#!$out/bin/bash" \
-e "s|[^( ]*\bsigtool\b|$out/bin/sigtool|g" \
$out/bin/codesign
updateInstallName() {
local path="$1"
cp "$path" "$path.new"
install_name_tool -id "$path" "$path.new"
# workaround for https://github.com/NixOS/nixpkgs/issues/294518
# libc++.1.0.dylib contains wrong LC_RPATH
if [[ ${path} == *libc++.1.0.dylib ]]; then
install_name_tool -add_rpath @loader_path/.. "${path}.new"
fi
codesign -f -i "$(basename "$path")" -s - "$path.new"
mv -f "$path.new" "$path"
}
find $out
ln -s bash $out/bin/sh
ln -s bzip2 $out/bin/bunzip2
find $out/lib -type f -name '*.dylib' -print0 | while IFS= read -r -d $'\0' lib; do
updateInstallName "$lib"
done
# 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 \"\$@\"" >> $out/bin/fgrep
cat >$out/bin/dsymutil << EOF
#!$out/bin/sh
EOF
chmod +x $out/bin/egrep $out/bin/fgrep $out/bin/dsymutil