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
|
{ lib, stdenv, llvm_meta, cmake, fetch, libcxx, libunwind, llvm, version
, enableShared ? !stdenv.hostPlatform.isStatic
}:
stdenv.mkDerivation {
pname = "libcxxabi";
inherit version;
src = fetch "libcxxabi" "0yqs722y76cwvmfsq0lb917r9m3fci7bf5z3yzl71yz9n88ghzm9";
outputs = [ "out" "dev" ];
postUnpack = ''
unpackFile ${libcxx.src}
unpackFile ${llvm.src}
cmakeFlags+=" -DLLVM_PATH=$PWD/$(ls -d llvm-*) -DLIBCXXABI_LIBCXX_PATH=$PWD/$(ls -d libcxx-*)"
'' + lib.optionalString stdenv.isDarwin ''
export TRIPLE=x86_64-apple-darwin
'' + lib.optionalString stdenv.hostPlatform.isMusl ''
patch -p1 -d $(ls -d libcxx-*) -i ${../../libcxx-0001-musl-hacks.patch}
'' + lib.optionalString stdenv.hostPlatform.isWasm ''
patch -p1 -d $(ls -d llvm-*) -i ${./wasm.patch}
'';
patches = [
./no-threads.patch
./gnu-install-dirs.patch
];
nativeBuildInputs = [ cmake ];
buildInputs = lib.optional (!stdenv.isDarwin && !stdenv.hostPlatform.isWasm) libunwind;
cmakeFlags = lib.optionals (stdenv.hostPlatform.useLLVM or false) [
"-DLLVM_ENABLE_LIBCXX=ON"
"-DLIBCXXABI_USE_LLVM_UNWINDER=ON"
] ++ lib.optionals stdenv.hostPlatform.isWasm [
"-DLIBCXXABI_ENABLE_THREADS=OFF"
"-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF"
] ++ lib.optionals (!enableShared) [
"-DLIBCXXABI_ENABLE_SHARED=OFF"
];
preInstall = lib.optionalString stdenv.isDarwin ''
for file in lib/*.dylib; do
# Fix up the install name. Preserve the basename, just replace the path.
installName="$out/lib/$(basename $(otool -D $file | tail -n 1))"
# this should be done in CMake, but having trouble figuring out
# the magic combination of necessary CMake variables
# if you fancy a try, take a look at
# https://gitlab.kitware.com/cmake/community/-/wikis/doc/cmake/RPATH-handling
${stdenv.cc.targetPrefix}install_name_tool -id $installName $file
# cc-wrapper passes '-lc++abi' to all c++ link steps, but that causes
# libcxxabi to sometimes link against a different version of itself.
# Here we simply make that second reference point to ourselves.
for other in $(otool -L $file | awk '$1 ~ "/libc\\+\\+abi" { print $1 }'); do
${stdenv.cc.targetPrefix}install_name_tool -change $other $installName $file
done
done
'';
postInstall = ''
mkdir -p "$dev/include"
install -m 644 ../include/${if stdenv.isDarwin then "*" else "cxxabi.h"} "$dev/include"
'';
meta = llvm_meta // {
homepage = "https://libcxxabi.llvm.org/";
description = "Provides C++ standard library support";
longDescription = ''
libc++abi is a new implementation of low level support for a standard C++ library.
'';
# "All of the code in libc++abi is dual licensed under the MIT license and
# the UIUC License (a BSD-like license)":
license = with lib.licenses; [ mit ncsa ];
maintainers = llvm_meta.maintainers ++ [ lib.maintainers.vlstill ];
};
}
|