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