pyrox.dev
lol
1{stdenv, fetchzip, linuxHeaders, libiconvReal, cross ? null, gccCross ? null,
2extraConfig ? ""}:
3
4assert stdenv.isLinux;
5assert cross != null -> gccCross != null;
6
7let
8 configParser = ''
9 function parseconfig {
10 set -x
11 while read LINE; do
12 NAME=`echo "$LINE" | cut -d \ -f 1`
13 OPTION=`echo "$LINE" | cut -d \ -f 2`
14
15 if test -z "$NAME"; then
16 continue
17 fi
18
19 echo "parseconfig: removing $NAME"
20 sed -i /^$NAME=/d .config
21
22 #if test "$OPTION" != n; then
23 echo "parseconfig: setting $NAME=$OPTION"
24 echo "$NAME=$OPTION" >> .config
25 #fi
26 done
27 set +x
28 }
29 '';
30
31 archMakeFlag = if cross != null then "ARCH=${cross.arch}" else "";
32 crossMakeFlag = if cross != null then "CROSS=${cross.config}-" else "";
33
34 # UCLIBC_SUSV4_LEGACY defines 'tmpnam', needed for gcc libstdc++ builds.
35 nixConfig = ''
36 RUNTIME_PREFIX "/"
37 DEVEL_PREFIX "/"
38 UCLIBC_HAS_WCHAR y
39 UCLIBC_HAS_FTW y
40 UCLIBC_HAS_RPC y
41 DO_C99_MATH y
42 UCLIBC_HAS_PROGRAM_INVOCATION_NAME y
43 UCLIBC_SUSV4_LEGACY y
44 UCLIBC_HAS_THREADS_NATIVE y
45 KERNEL_HEADERS "${linuxHeaders}/include"
46 '' + stdenv.lib.optionalString (stdenv.isArm && cross == null) ''
47 CONFIG_ARM_EABI y
48 ARCH_WANTS_BIG_ENDIAN n
49 ARCH_BIG_ENDIAN n
50 ARCH_WANTS_LITTLE_ENDIAN y
51 ARCH_LITTLE_ENDIAN y
52 UCLIBC_HAS_FPU n
53 '';
54
55 name = "uclibc-0.9.34-pre-20150131";
56 rev = "343f6b8f1f754e397632b0552e4afe586c8b392b";
57
58in
59
60stdenv.mkDerivation {
61 name = name + stdenv.lib.optionalString (cross != null) ("-" + cross.config);
62
63 src = fetchzip {
64 name = name + "-source";
65 url = "http://git.uclibc.org/uClibc/snapshot/uClibc-${rev}.tar.bz2";
66 sha256 = "1kgylzpid7da5i7wz7slh5q9rnq1m8bv5h9ilm76g0xwc2iwlhbw";
67 };
68
69 # 'ftw' needed to build acl, a coreutils dependency
70 configurePhase = ''
71 make defconfig ${archMakeFlag}
72 ${configParser}
73 cat << EOF | parseconfig
74 ${nixConfig}
75 ${extraConfig}
76 ${if cross != null then stdenv.lib.attrByPath [ "uclibc" "extraConfig" ] "" cross else ""}
77 $extraCrossConfig
78 EOF
79 make oldconfig
80 '';
81
82 # Cross stripping hurts.
83 dontStrip = cross != null;
84
85 makeFlags = [ crossMakeFlag "VERBOSE=1" ];
86
87 buildInputs = stdenv.lib.optional (gccCross != null) gccCross;
88
89 enableParallelBuilding = true;
90
91 installPhase = ''
92 mkdir -p $out
93 make PREFIX=$out VERBOSE=1 install ${crossMakeFlag}
94 (cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
95 # libpthread.so may not exist, so I do || true
96 sed -i s@/lib/@$out/lib/@g $out/lib/libc.so $out/lib/libpthread.so || true
97 '';
98
99 passthru = {
100 # Derivations may check for the existance of this attribute, to know what to link to.
101 libiconv = libiconvReal;
102 };
103
104 meta = {
105 homepage = http://www.uclibc.org/;
106 description = "A small implementation of the C library";
107 license = stdenv.lib.licenses.lgpl2;
108 };
109}