mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-21 05:04:00 +00:00
130 lines
4.2 KiB
Nix
130 lines
4.2 KiB
Nix
{ stdenv, lib, fetchurl
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, linuxHeaders ? null
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, useBSDCompatHeaders ? true
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}:
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let
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cdefs_h = fetchurl {
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url = "http://git.alpinelinux.org/cgit/aports/plain/main/libc-dev/sys-cdefs.h";
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sha256 = "16l3dqnfq0f20rzbkhc38v74nqcsh9n3f343bpczqq8b1rz6vfrh";
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};
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queue_h = fetchurl {
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url = "http://git.alpinelinux.org/cgit/aports/plain/main/libc-dev/sys-queue.h";
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sha256 = "12qm82id7zys92a1qh2l1qf2wqgq6jr4qlbjmqyfffz3s3nhfd61";
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};
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tree_h = fetchurl {
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url = "http://git.alpinelinux.org/cgit/aports/plain/main/libc-dev/sys-tree.h";
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sha256 = "14igk6k00bnpfw660qhswagyhvr0gfqg4q55dxvaaq7ikfkrir71";
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};
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# iconv tool, implemented by musl author.
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# Original: http://git.etalabs.net/cgit/noxcuse/plain/src/iconv.c?id=02d288d89683e99fd18fe9f54d4e731a6c474a4f
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# We use copy from Alpine which fixes error messages, see:
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# https://git.alpinelinux.org/aports/commit/main/musl/iconv.c?id=a3d97e95f766c9c378194ee49361b375f093b26f
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iconv_c = fetchurl {
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name = "iconv.c";
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url = "https://git.alpinelinux.org/aports/plain/main/musl/iconv.c?id=a3d97e95f766c9c378194ee49361b375f093b26f";
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sha256 = "1mzxnc2ncq8lw9x6n7p00fvfklc9p3wfv28m68j0dfz5l8q2k6pp";
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};
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arch = if stdenv.hostPlatform.isx86_64
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then "x86_64"
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else if stdenv.hostPlatform.isx86_32
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then "i386"
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else null;
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in
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stdenv.mkDerivation rec {
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pname = "musl";
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version = "1.2.0";
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src = fetchurl {
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url = "https://www.musl-libc.org/releases/${pname}-${version}.tar.gz";
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sha256 = "1s6lix02k1ijm4nmhzpmwzk5w6xfkhn70nvvk8zjs51r24cpppn6";
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};
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enableParallelBuilding = true;
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# Disable auto-adding stack protector flags,
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# so musl can selectively disable as needed
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hardeningDisable = [ "stackprotector" ];
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# Leave these, be friendlier to debuggers/perf tools
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# Don't force them on, but don't force off either
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postPatch = ''
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substituteInPlace configure \
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--replace -fno-unwind-tables "" \
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--replace -fno-asynchronous-unwind-tables ""
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'';
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patches = [
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# Minor touchup to build system making dynamic linker symlink relative
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(fetchurl {
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url = "https://raw.githubusercontent.com/openwrt/openwrt/87606e25afac6776d1bbc67ed284434ec5a832b4/toolchain/musl/patches/300-relative.patch";
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sha256 = "0hfadrycb60sm6hb6by4ycgaqc9sgrhh42k39v8xpmcvdzxrsq2n";
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})
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];
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CFLAGS = [ "-fstack-protector-strong" ]
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++ lib.optional stdenv.hostPlatform.isPower "-mlong-double-64";
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configureFlags = [
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"--enable-shared"
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"--enable-static"
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"--enable-debug"
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"--enable-wrapper=all"
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"--syslibdir=${placeholder "out"}/lib"
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];
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outputs = [ "out" "dev" ];
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dontDisableStatic = true;
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separateDebugInfo = true;
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NIX_DONT_SET_RPATH = true;
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postInstall = ''
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# Not sure why, but link in all but scsi directory as that's what uclibc/glibc do.
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# Apparently glibc provides scsi itself?
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(cd $dev/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
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# Strip debug out of the static library
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$STRIP -S $out/lib/libc.a
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mkdir -p $out/bin
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# Create 'ldd' symlink, builtin
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ln -rs $out/lib/libc.so $out/bin/ldd
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# (impure) cc wrapper around musl for interactive usuage
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for i in musl-gcc musl-clang ld.musl-clang; do
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moveToOutput bin/$i $dev
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done
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moveToOutput lib/musl-gcc.specs $dev
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substituteInPlace $dev/bin/musl-gcc \
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--replace $out/lib/musl-gcc.specs $dev/lib/musl-gcc.specs
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# provide 'iconv' utility, using just-built headers, libc/ldso
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$CC ${iconv_c} -o $out/bin/iconv \
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-I$dev/include \
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-L$out/lib -Wl,-rpath=$out/lib \
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-lc \
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-B $out/lib \
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-Wl,-dynamic-linker=$(ls $out/lib/ld-*)
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'' + lib.optionalString (arch != null) ''
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# Create 'libc.musl-$arch' symlink
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ln -rs $out/lib/libc.so $out/lib/libc.musl-${arch}.so.1
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'' + lib.optionalString useBSDCompatHeaders ''
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install -D ${queue_h} $dev/include/sys/queue.h
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install -D ${cdefs_h} $dev/include/sys/cdefs.h
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install -D ${tree_h} $dev/include/sys/tree.h
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'';
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passthru.linuxHeaders = linuxHeaders;
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meta = with lib; {
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description = "An efficient, small, quality libc implementation";
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homepage = "http://www.musl-libc.org";
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license = licenses.mit;
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platforms = platforms.linux;
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maintainers = with maintainers; [ thoughtpolice dtzWill ];
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};
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}
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