nixpkgs/pkgs/os-specific/darwin/apple-source-releases/Libsystem/default.nix
Dan Peebles d8a0307a5d [darwin.stdenv] Fix to work on Sierra
This reinstates the libSystem selective symbol export machinery we used
to have, but locks it to the symbols that were present in 10.11 and skips
the actual compiled code we put into that library in favor of the system
initialization code. That should make it more stable and less likely to
do weird stuff than the last time we did this.
2016-10-12 00:08:13 -04:00

120 lines
4.6 KiB
Nix

{ stdenv, appleDerivation, cpio, bootstrap_cmds, xnu, Libc, Libm, libdispatch, cctools, Libinfo,
dyld, Csu, architecture, libclosure, CarbonHeaders, ncurses, CommonCrypto, copyfile,
removefile, libresolv, Libnotify, libpthread, mDNSResponder, launchd, libutil, version }:
appleDerivation rec {
phases = [ "unpackPhase" "installPhase" ];
buildInputs = [ cpio ];
installPhase = ''
export NIX_ENFORCE_PURITY=
mkdir -p $out/lib $out/include
# Set up our include directories
(cd ${xnu}/include && find . -name '*.h' -or -name '*.defs' | cpio -pdm $out/include)
cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/Availability*.h $out/include
cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/stdarg.h $out/include
for dep in ${Libc} ${Libm} ${Libinfo} ${dyld} ${architecture} ${libclosure} ${CarbonHeaders} \
${libdispatch} ${ncurses.dev} ${CommonCrypto} ${copyfile} ${removefile} ${libresolv} \
${Libnotify} ${mDNSResponder} ${launchd} ${libutil} ${libpthread}; do
(cd $dep/include && find . -name '*.h' | cpio -pdm $out/include)
done
(cd ${cctools}/include/mach-o && find . -name '*.h' | cpio -pdm $out/include/mach-o)
cat <<EOF > $out/include/TargetConditionals.h
#ifndef __TARGETCONDITIONALS__
#define __TARGETCONDITIONALS__
#define TARGET_OS_MAC 1
#define TARGET_OS_WIN32 0
#define TARGET_OS_UNIX 0
#define TARGET_OS_EMBEDDED 0
#define TARGET_OS_IPHONE 0
#define TARGET_IPHONE_SIMULATOR 0
#define TARGET_OS_LINUX 0
#define TARGET_CPU_PPC 0
#define TARGET_CPU_PPC64 0
#define TARGET_CPU_68K 0
#define TARGET_CPU_X86 0
#define TARGET_CPU_X86_64 1
#define TARGET_CPU_ARM 0
#define TARGET_CPU_MIPS 0
#define TARGET_CPU_SPARC 0
#define TARGET_CPU_ALPHA 0
#define TARGET_RT_MAC_CFM 0
#define TARGET_RT_MAC_MACHO 1
#define TARGET_RT_LITTLE_ENDIAN 1
#define TARGET_RT_BIG_ENDIAN 0
#define TARGET_RT_64_BIT 1
#endif /* __TARGETCONDITIONALS__ */
EOF
# The startup object files
cp ${Csu}/lib/* $out/lib
# Narrowly speaking, these would work if we re-exported libsystem_c and libsystem_kernel,
# but we also need to run the original central libsystem constructor (which initializes
# a ton of crap for its consitutent libraries) so we link against the central library here.
mkdir -p $out/lib/system
ld -macosx_version_min 10.7 -arch x86_64 -dylib \
-o $out/lib/system/libsystem_c.dylib \
/usr/lib/libSystem.dylib \
-reexported_symbols_list ${./system_c_symbols}
ld -macosx_version_min 10.7 -arch x86_64 -dylib \
-o $out/lib/system/libsystem_kernel.dylib \
/usr/lib/libSystem.dylib \
-reexported_symbols_list ${./system_kernel_symbols}
libs=$(otool -arch x86_64 -L /usr/lib/libSystem.dylib | tail -n +3 | awk '{ print $1 }')
for i in $libs; do
if [ "$i" != "/usr/lib/system/libsystem_kernel.dylib" ] && [ "$i" != "/usr/lib/system/libsystem_c.dylib" ]; then
args="$args -reexport_library $i"
fi
done
ld -macosx_version_min 10.7 \
-arch x86_64 \
-dylib \
-o $out/lib/libSystem.B.dylib \
-compatibility_version 1.0 \
-current_version 1226.10.1 \
-reexport_library $out/lib/system/libsystem_c.dylib \
-reexport_library $out/lib/system/libsystem_kernel.dylib \
$args
ln -s libSystem.B.dylib $out/lib/libSystem.dylib
# Set up links to pretend we work like a conventional unix (Apple's design, not mine!)
for name in c dbm dl info m mx poll proc pthread rpcsvc util gcc_s.10.4 gcc_s.10.5; do
ln -s libSystem.dylib $out/lib/lib$name.dylib
done
# This probably doesn't belong here, but we want to stay similar to glibc, which includes resolv internally...
cp ${libresolv}/lib/libresolv.9.dylib $out/lib/libresolv.9.dylib
resolv_libSystem=$(otool -L "$out/lib/libresolv.9.dylib" | tail -n +3 | grep -o "$NIX_STORE.*-\S*") || true
echo $libs
chmod +w $out/lib/libresolv.9.dylib
install_name_tool \
-id $out/lib/libresolv.9.dylib \
-change "$resolv_libSystem" $out/lib/libSystem.dylib \
-delete_rpath ${libresolv}/lib \
$out/lib/libresolv.9.dylib
ln -s libresolv.9.dylib $out/lib/libresolv.dylib
'';
meta = with stdenv.lib; {
description = "The Mac OS libc/libSystem (impure symlinks to binaries with pure headers)";
maintainers = with maintainers; [ copumpkin gridaphobe ];
platforms = platforms.darwin;
license = licenses.apsl20;
};
}