blob: c168113fa3c45da9869f883c8961a690c45e2c1f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
{ lib, stdenvNoLibs, buildPackages
, gcc, glibc
, libiberty
}:
let
stdenv = stdenvNoLibs;
gccConfigureFlags = gcc.cc.configureFlags ++ [
"--disable-fixincludes"
"--disable-intl"
"--enable-threads=posix"
"--with-glibc-version=${glibc.version}"
# these are required in order to prevent inhibit_libc=true,
# which will cripple libgcc's unwinder; see:
# https://github.com/NixOS/nixpkgs/issues/213453#issuecomment-1616346163
"--with-headers=${lib.getDev glibc}/include"
"--with-native-system-header-dir=${lib.getDev glibc}${glibc.incdir or "/include"}"
"--with-build-sysroot=/"
];
in stdenv.mkDerivation (finalAttrs: {
pname = "libgcc";
inherit (gcc.cc) src version;
outputs = [ "out" "dev" ];
strictDeps = true;
depsBuildBuild = [ buildPackages.stdenv.cc ];
nativeBuildInputs = [ libiberty ];
buildInputs = [ glibc ];
postUnpack = ''
mkdir -p ./build
buildRoot=$(readlink -e "./build")
'';
postPatch =
gcc.cc.passthru.forceLibgccToBuildCrtStuff
+ ''
sourceRoot=$(readlink -e "./libgcc")
'';
hardeningDisable = [ "pie" ];
preConfigure =
''
# Drop in libiberty, as external builds are not expected
cd "$buildRoot"
(
mkdir -p build-${stdenv.buildPlatform.config}/libiberty/
cd build-${stdenv.buildPlatform.config}/libiberty/
ln -s ${buildPackages.libiberty}/lib/libiberty.a ./
)
mkdir -p "$buildRoot/gcc"
cd "$buildRoot/gcc"
(
# We "shift" the tools over to fake platforms perspective from the previous stage.
export AS_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$AS_FOR_BUILD
export CC_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CC_FOR_BUILD
export CPP_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CPP_FOR_BUILD
export CXX_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CXX_FOR_BUILD
export LD_FOR_BUILD=${buildPackages.stdenv.cc.bintools}/bin/$LD_FOR_BUILD
export AS=$AS_FOR_BUILD
export CC=$CC_FOR_BUILD
export CPP=$CPP_FOR_BUILD
export CXX=$CXX_FOR_BUILD
export LD=$LD_FOR_BUILD
export AS_FOR_TARGET=${stdenv.cc}/bin/$AS
export CC_FOR_TARGET=${stdenv.cc}/bin/$CC
export CPP_FOR_TARGET=${stdenv.cc}/bin/$CPP
export LD_FOR_TARGET=${stdenv.cc.bintools}/bin/$LD
# We define GENERATOR_FILE so nothing bothers looking for GNU GMP.
export NIX_CFLAGS_COMPILE_FOR_BUILD+=' -DGENERATOR_FILE=1'
"$sourceRoot/../gcc/configure" ${lib.concatStringsSep " " gccConfigureFlags}
# We remove the `libgcc.mvar` deps so that the bootstrap xgcc isn't built.
sed -e 's,libgcc.mvars:.*$,libgcc.mvars:,' -i Makefile
make \
config.h \
libgcc.mvars \
tconfig.h \
tm.h \
options.h \
insn-constants.h \
'' + lib.optionalString stdenv.targetPlatform.isM68k ''
sysroot-suffix.h \
'' + lib.optionalString stdenv.targetPlatform.isAarch32 ''
arm-isa.h \
arm-cpu.h \
'' + ''
insn-modes.h
)
mkdir -p "$buildRoot/gcc/include"
# Preparing to configure + build libgcc itself
mkdir -p "$buildRoot/gcc/${stdenv.hostPlatform.config}/libgcc"
cd "$buildRoot/gcc/${stdenv.hostPlatform.config}/libgcc"
configureScript=$sourceRoot/configure
chmod +x "$configureScript"
export AS_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$AS_FOR_BUILD
export CC_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CC_FOR_BUILD
export CPP_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CPP_FOR_BUILD
export CXX_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CXX_FOR_BUILD
export LD_FOR_BUILD=${buildPackages.stdenv.cc.bintools}/bin/$LD_FOR_BUILD
export AS=${stdenv.cc}/bin/$AS
export CC=${stdenv.cc}/bin/$CC
export CPP=${stdenv.cc}/bin/$CPP
export CXX=${stdenv.cc}/bin/$CXX
export LD=${stdenv.cc.bintools}/bin/$LD
export AS_FOR_TARGET=${stdenv.cc}/bin/$AS_FOR_TARGET
export CC_FOR_TARGET=${stdenv.cc}/bin/$CC_FOR_TARGET
export CPP_FOR_TARGET=${stdenv.cc}/bin/$CPP_FOR_TARGET
export LD_FOR_TARGET=${stdenv.cc.bintools}/bin/$LD_FOR_TARGET
'';
configurePlatforms = [ "build" "host" ];
configureFlags = [
"cross_compiling=true"
"--disable-gcov"
"--with-glibc-version=${glibc.version}"
];
makeFlags = [ "MULTIBUILDTOP:=../" ];
postInstall = ''
moveToOutput "lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}/include" "$dev"
mkdir -p "$out/lib" "$dev/include"
ln -s "$out/lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}"/* "$out/lib"
ln -s "$dev/lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}/include"/* "$dev/include/"
'';
})
|