tjh.dev
1{ runCommand,
2clang,
3gcc64,
4gcc32,
5glibc_multi
6}:
7
8let
9 combine = basegcc: runCommand "combine-gcc-libc" {} ''
10 mkdir -p $out
11 cp -r ${basegcc.cc}/lib $out/lib
12
13 chmod u+rw -R $out/lib
14 cp -r ${basegcc.libc}/lib/* $(ls -d $out/lib/gcc/*/*)
15 '';
16 gcc_multi_sysroot = runCommand "gcc-multi-sysroot" {
17 passthru = {
18 inherit (gcc64) version;
19 lib = gcc_multi_sysroot;
20 };
21 } ''
22 mkdir -p $out/lib{,64}/gcc
23
24 ln -s ${combine gcc64}/lib/gcc/* $out/lib64/gcc/
25 ln -s ${combine gcc32}/lib/gcc/* $out/lib/gcc/
26 # XXX: This shouldn't be needed, clang just doesn't look for "i686-unknown"
27 ln -s $out/lib/gcc/i686-unknown-linux-gnu $out/lib/gcc/i686-pc-linux-gnu
28
29
30 # includes
31 mkdir -p $out/include
32 ln -s ${glibc_multi.dev}/include/* $out/include
33 ln -s ${gcc64.cc}/include/c++ $out/include/c++
34
35 # dynamic linkers
36 mkdir -p $out/lib/32
37 ln -s ${glibc_multi.out}/lib/ld-linux* $out/lib
38 ln -s ${glibc_multi.out}/lib/32/ld-linux* $out/lib/32/
39 '';
40
41 clangMulti = clang.override {
42 # Only used for providing expected structure re:dynamic linkers, AFAIK Most
43 # of the magic is done by setting the --gcc-toolchain option via
44 # `gccForLibs`.
45 libc = gcc_multi_sysroot;
46
47 bintools = clang.bintools.override {
48 libc = gcc_multi_sysroot;
49 };
50
51 gccForLibs = gcc_multi_sysroot // {
52 inherit (glibc_multi) libgcc;
53 langCC =
54 assert (gcc64.cc.langCC != gcc32.cc.langCC)
55 -> throw "(gcc64.cc.langCC=${gcc64.cc.langCC}) != (gcc32.cc.langCC=${gcc32.cc.langCC})";
56 gcc64.cc.langCC;
57 };
58 };
59
60in clangMulti