mirror of
https://github.com/NixOS/nixpkgs.git
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d8a0307a5d
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.
120 lines
4.6 KiB
Nix
120 lines
4.6 KiB
Nix
{ stdenv, appleDerivation, cpio, bootstrap_cmds, xnu, Libc, Libm, libdispatch, cctools, Libinfo,
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dyld, Csu, architecture, libclosure, CarbonHeaders, ncurses, CommonCrypto, copyfile,
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removefile, libresolv, Libnotify, libpthread, mDNSResponder, launchd, libutil, version }:
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appleDerivation rec {
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phases = [ "unpackPhase" "installPhase" ];
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buildInputs = [ cpio ];
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installPhase = ''
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export NIX_ENFORCE_PURITY=
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mkdir -p $out/lib $out/include
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# Set up our include directories
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(cd ${xnu}/include && find . -name '*.h' -or -name '*.defs' | cpio -pdm $out/include)
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cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/Availability*.h $out/include
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cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/stdarg.h $out/include
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for dep in ${Libc} ${Libm} ${Libinfo} ${dyld} ${architecture} ${libclosure} ${CarbonHeaders} \
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${libdispatch} ${ncurses.dev} ${CommonCrypto} ${copyfile} ${removefile} ${libresolv} \
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${Libnotify} ${mDNSResponder} ${launchd} ${libutil} ${libpthread}; do
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(cd $dep/include && find . -name '*.h' | cpio -pdm $out/include)
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done
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(cd ${cctools}/include/mach-o && find . -name '*.h' | cpio -pdm $out/include/mach-o)
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cat <<EOF > $out/include/TargetConditionals.h
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#ifndef __TARGETCONDITIONALS__
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#define __TARGETCONDITIONALS__
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#define TARGET_OS_MAC 1
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#define TARGET_OS_WIN32 0
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#define TARGET_OS_UNIX 0
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#define TARGET_OS_EMBEDDED 0
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#define TARGET_OS_IPHONE 0
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#define TARGET_IPHONE_SIMULATOR 0
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#define TARGET_OS_LINUX 0
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#define TARGET_CPU_PPC 0
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#define TARGET_CPU_PPC64 0
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#define TARGET_CPU_68K 0
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#define TARGET_CPU_X86 0
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#define TARGET_CPU_X86_64 1
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#define TARGET_CPU_ARM 0
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#define TARGET_CPU_MIPS 0
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#define TARGET_CPU_SPARC 0
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#define TARGET_CPU_ALPHA 0
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#define TARGET_RT_MAC_CFM 0
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#define TARGET_RT_MAC_MACHO 1
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#define TARGET_RT_LITTLE_ENDIAN 1
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#define TARGET_RT_BIG_ENDIAN 0
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#define TARGET_RT_64_BIT 1
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#endif /* __TARGETCONDITIONALS__ */
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EOF
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# The startup object files
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cp ${Csu}/lib/* $out/lib
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# Narrowly speaking, these would work if we re-exported libsystem_c and libsystem_kernel,
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# but we also need to run the original central libsystem constructor (which initializes
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# a ton of crap for its consitutent libraries) so we link against the central library here.
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mkdir -p $out/lib/system
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ld -macosx_version_min 10.7 -arch x86_64 -dylib \
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-o $out/lib/system/libsystem_c.dylib \
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/usr/lib/libSystem.dylib \
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-reexported_symbols_list ${./system_c_symbols}
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ld -macosx_version_min 10.7 -arch x86_64 -dylib \
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-o $out/lib/system/libsystem_kernel.dylib \
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/usr/lib/libSystem.dylib \
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-reexported_symbols_list ${./system_kernel_symbols}
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libs=$(otool -arch x86_64 -L /usr/lib/libSystem.dylib | tail -n +3 | awk '{ print $1 }')
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for i in $libs; do
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if [ "$i" != "/usr/lib/system/libsystem_kernel.dylib" ] && [ "$i" != "/usr/lib/system/libsystem_c.dylib" ]; then
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args="$args -reexport_library $i"
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fi
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done
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ld -macosx_version_min 10.7 \
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-arch x86_64 \
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-dylib \
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-o $out/lib/libSystem.B.dylib \
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-compatibility_version 1.0 \
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-current_version 1226.10.1 \
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-reexport_library $out/lib/system/libsystem_c.dylib \
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-reexport_library $out/lib/system/libsystem_kernel.dylib \
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$args
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ln -s libSystem.B.dylib $out/lib/libSystem.dylib
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# Set up links to pretend we work like a conventional unix (Apple's design, not mine!)
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for name in c dbm dl info m mx poll proc pthread rpcsvc util gcc_s.10.4 gcc_s.10.5; do
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ln -s libSystem.dylib $out/lib/lib$name.dylib
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done
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# This probably doesn't belong here, but we want to stay similar to glibc, which includes resolv internally...
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cp ${libresolv}/lib/libresolv.9.dylib $out/lib/libresolv.9.dylib
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resolv_libSystem=$(otool -L "$out/lib/libresolv.9.dylib" | tail -n +3 | grep -o "$NIX_STORE.*-\S*") || true
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echo $libs
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chmod +w $out/lib/libresolv.9.dylib
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install_name_tool \
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-id $out/lib/libresolv.9.dylib \
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-change "$resolv_libSystem" $out/lib/libSystem.dylib \
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-delete_rpath ${libresolv}/lib \
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$out/lib/libresolv.9.dylib
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ln -s libresolv.9.dylib $out/lib/libresolv.dylib
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'';
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meta = with stdenv.lib; {
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description = "The Mac OS libc/libSystem (impure symlinks to binaries with pure headers)";
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maintainers = with maintainers; [ copumpkin gridaphobe ];
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platforms = platforms.darwin;
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license = licenses.apsl20;
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};
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}
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