88 lines
2.9 KiB
Nix
88 lines
2.9 KiB
Nix
{ lib
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, stdenv
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, release_version
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, patches ? []
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, src ? null
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, llvm_meta
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, version
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, monorepoSrc ? null
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, runCommand
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, cmake
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, ninja
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, python3
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, libcxx
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, enableShared ? !stdenv.hostPlatform.isStatic
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}:
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let
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pname = "libunwind";
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src' = if monorepoSrc != null then
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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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'' + lib.optionalString (lib.versionAtLeast release_version "15") ''
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cp -r ${monorepoSrc}/llvm/utils "$out/llvm"
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cp -r ${monorepoSrc}/runtimes "$out"
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'') else src;
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hasPatches = builtins.length patches > 0;
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postUnpack = lib.optionalString (lib.versions.major release_version == "12") ''
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ln -s ${libcxx.src}/libcxx .
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ln -s ${libcxx.src}/llvm .
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'';
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prePatch = lib.optionalString (lib.versionAtLeast release_version "15" && (hasPatches || lib.versionOlder release_version "18")) ''
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cd ../${pname}
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chmod -R u+w .
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'';
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postPatch = lib.optionalString (lib.versionAtLeast release_version "15" && (hasPatches || lib.versionOlder release_version "18")) ''
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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 $out/lib/libunwind_shared.so
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'';
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in
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stdenv.mkDerivation (rec {
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inherit pname version patches;
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src = src';
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sourceRoot =
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if lib.versionOlder release_version "13" then null
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else if lib.versionAtLeast release_version "15" then "${src.name}/runtimes"
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else "${src.name}/${pname}";
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outputs = [ "out" "dev" ];
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nativeBuildInputs = [ cmake ] ++ lib.optionals (lib.versionAtLeast release_version "15") [
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ninja python3
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];
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cmakeFlags = lib.optional (lib.versionAtLeast release_version "15") "-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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} // (if postUnpack != "" then { inherit postUnpack; } else {})
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// (if (lib.versionAtLeast release_version "15") then { inherit postInstall; } else {})
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// (if prePatch != "" then { inherit prePatch; } else {})
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// (if postPatch != "" then { inherit postPatch; } else {}))
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