64 lines
1.8 KiB
Nix
64 lines
1.8 KiB
Nix
{ lib, stdenv, llvm_meta, version
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, monorepoSrc, runCommand
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, cmake
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, ninja
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, python3
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, enableShared ? !stdenv.hostPlatform.isStatic
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}:
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stdenv.mkDerivation rec {
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pname = "libunwind";
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inherit version;
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# I am not so comfortable giving libc++ and friends the whole monorepo as
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# requested, so I filter it to what is needed.
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src = runCommand "${pname}-src-${version}" {} ''
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mkdir -p "$out"
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cp -r ${monorepoSrc}/cmake "$out"
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cp -r ${monorepoSrc}/${pname} "$out"
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mkdir -p "$out/libcxx"
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cp -r ${monorepoSrc}/libcxx/cmake "$out/libcxx"
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cp -r ${monorepoSrc}/libcxx/utils "$out/libcxx"
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mkdir -p "$out/llvm"
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cp -r ${monorepoSrc}/llvm/cmake "$out/llvm"
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cp -r ${monorepoSrc}/llvm/utils "$out/llvm"
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cp -r ${monorepoSrc}/runtimes "$out"
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'';
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sourceRoot = "${src.name}/runtimes";
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prePatch = ''
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cd ../${pname}
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chmod -R u+w .
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'';
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postPatch = ''
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cd ../runtimes
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'';
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postInstall = lib.optionalString (enableShared && !stdenv.hostPlatform.isDarwin) ''
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# libcxxabi wants to link to libunwind_shared.so (?).
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ln -s $out/lib/libunwind.so $out/lib/libunwind_shared.so
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'';
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outputs = [ "out" "dev" ];
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nativeBuildInputs = [ cmake ninja python3 ];
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cmakeFlags = [
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"-DLLVM_ENABLE_RUNTIMES=libunwind"
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] ++ lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
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meta = llvm_meta // {
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# Details: https://github.com/llvm/llvm-project/blob/main/libunwind/docs/index.rst
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homepage = "https://clang.llvm.org/docs/Toolchain.html#unwind-library";
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description = "LLVM's unwinder library";
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longDescription = ''
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The unwind library provides a family of _Unwind_* functions implementing
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the language-neutral stack unwinding portion of the Itanium C++ ABI (Level
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I). It is a dependency of the C++ ABI library, and sometimes is a
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dependency of other runtimes.
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'';
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};
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}
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