141 lines
4.1 KiB
Nix
141 lines
4.1 KiB
Nix
{ lib
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, stdenv
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, buildPackages
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, fetchurl
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, linuxHeaders
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, libiconvReal
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, extraConfig ? ""
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}:
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let
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isCross = (stdenv.buildPlatform != stdenv.hostPlatform);
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configParser = ''
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function parseconfig {
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set -x
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while read LINE; do
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NAME=`echo "$LINE" | cut -d \ -f 1`
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OPTION=`echo "$LINE" | cut -d \ -f 2`
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if test -z "$NAME"; then
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continue
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fi
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echo "parseconfig: removing $NAME"
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sed -i /^$NAME=/d .config
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#if test "$OPTION" != n; then
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echo "parseconfig: setting $NAME=$OPTION"
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echo "$NAME=$OPTION" >> .config
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#fi
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done
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set +x
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}
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'';
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# UCLIBC_SUSV4_LEGACY defines 'tmpnam', needed for gcc libstdc++ builds.
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nixConfig = ''
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RUNTIME_PREFIX "/"
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DEVEL_PREFIX "/"
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UCLIBC_HAS_WCHAR y
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UCLIBC_HAS_FTW y
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UCLIBC_HAS_RPC y
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DO_C99_MATH y
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UCLIBC_HAS_PROGRAM_INVOCATION_NAME y
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UCLIBC_HAS_RESOLVER_SUPPORT y
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UCLIBC_SUSV4_LEGACY y
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UCLIBC_HAS_THREADS_NATIVE y
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KERNEL_HEADERS "${linuxHeaders}/include"
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'' + lib.optionalString (stdenv.hostPlatform.gcc.float or "" == "soft") ''
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UCLIBC_HAS_FPU n
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'' + lib.optionalString (stdenv.isAarch32 && isCross) ''
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CONFIG_ARM_EABI y
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ARCH_WANTS_BIG_ENDIAN n
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ARCH_BIG_ENDIAN n
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ARCH_WANTS_LITTLE_ENDIAN y
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ARCH_LITTLE_ENDIAN y
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UCLIBC_HAS_FPU n
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'';
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in
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stdenv.mkDerivation rec {
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pname = "uclibc-ng";
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version = "1.0.44";
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src = fetchurl {
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url = "https://downloads.uclibc-ng.org/releases/${version}/uClibc-ng-${version}.tar.xz";
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sha256 = "sha256-ffnZh5VYJzgvHCQA2lE0Vr7Ltvhovf03c3Jl8cvuyZQ=";
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};
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# 'ftw' needed to build acl, a coreutils dependency
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configurePhase = ''
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make defconfig
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${configParser}
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cat << EOF | parseconfig
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${nixConfig}
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${extraConfig}
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${stdenv.hostPlatform.uclibc.extraConfig or ""}
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EOF
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( set +o pipefail; yes "" | make oldconfig )
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'';
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hardeningDisable = [ "stackprotector" ];
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# Cross stripping hurts.
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dontStrip = isCross;
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depsBuildBuild = [ buildPackages.stdenv.cc ];
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makeFlags = [
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"ARCH=${stdenv.hostPlatform.linuxArch}"
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"TARGET_ARCH=${stdenv.hostPlatform.linuxArch}"
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"VERBOSE=1"
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] ++ lib.optionals (isCross) [
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"CROSS=${stdenv.cc.targetPrefix}"
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];
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# `make libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelrwlock.h`:
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# error: bits/sysnum.h: No such file or directory
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enableParallelBuilding = false;
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installPhase = ''
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runHook preInstall
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mkdir -p $out
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make $makeFlags PREFIX=$out VERBOSE=1 install
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(cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
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# libpthread.so may not exist, so I do || true
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sed -i s@/lib/@$out/lib/@g $out/lib/libc.so $out/lib/libpthread.so || true
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runHook postInstall
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'';
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meta = with lib; {
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homepage = "https://uclibc-ng.org";
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description = "Embedded C library";
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longDescription = ''
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uClibc-ng is a small C library for developing embedded Linux systems. It
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is much smaller than the GNU C Library, but nearly all applications
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supported by glibc also work perfectly with uClibc-ng.
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Porting applications from glibc to uClibc-ng typically involves just
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recompiling the source code. uClibc-ng supports shared libraries and
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threading. It currently runs on standard Linux and MMU-less (also known as
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uClinux) systems with support for Aarch64, Alpha, ARC, ARM, AVR32,
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Blackfin, CRIS, C-Sky, C6X, FR-V, H8/300, HPPA, i386, IA64, KVX, LM32,
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M68K/Coldfire, Metag, Microblaze, MIPS, MIPS64, NDS32, NIOS2, OpenRISC,
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PowerPC, RISCV64, Sparc, Sparc64, SuperH, Tile, X86_64 and XTENSA
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processors. Alpha, FR-V, HPPA, IA64, LM32, NIOS2, Tile and Sparc64 are
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experimental and need more testing.
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'';
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license = licenses.lgpl2Plus;
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maintainers = with maintainers; [ rasendubi AndersonTorres ];
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platforms = platforms.linux;
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badPlatforms = platforms.aarch64;
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};
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passthru = {
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# Derivations may check for the existance of this attribute, to know what to
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# link to.
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libiconv = libiconvReal;
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};
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}
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