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38 lines
1.5 KiB
Nix
38 lines
1.5 KiB
Nix
{ stdenv, version, fetch, cmake, python, llvm, libcxxabi }:
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with stdenv.lib;
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stdenv.mkDerivation {
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pname = "compiler-rt";
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inherit version;
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src = fetch "compiler-rt" "1fcr3jn24yr8lh36nc0c4ikli4744i2q9m1ik67p1jymwwaixkgl";
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nativeBuildInputs = [ cmake python llvm ];
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buildInputs = stdenv.lib.optional stdenv.hostPlatform.isDarwin libcxxabi;
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configureFlags = [
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"-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON"
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];
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outputs = [ "out" "dev" ];
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patches = [
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./compiler-rt-codesign.patch # Revert compiler-rt commit that makes codesign mandatory
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] ++ optional stdenv.hostPlatform.isMusl ./sanitizers-nongnu.patch;
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# TSAN requires XPC on Darwin, which we have no public/free source files for. We can depend on the Apple frameworks
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# to get it, but they're unfree. Since LLVM is rather central to the stdenv, we patch out TSAN support so that Hydra
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# can build this. If we didn't do it, basically the entire nixpkgs on Darwin would have an unfree dependency and we'd
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# get no binary cache for the entire platform. If you really find yourself wanting the TSAN, make this controllable by
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# a flag and turn the flag off during the stdenv build.
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postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
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substituteInPlace cmake/config-ix.cmake \
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--replace 'set(COMPILER_RT_HAS_TSAN TRUE)' 'set(COMPILER_RT_HAS_TSAN FALSE)'
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'';
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# Hack around weird upsream RPATH bug
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postInstall = stdenv.lib.optionalString stdenv.isDarwin ''
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ln -s "$out/lib"/*/* "$out/lib"
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'';
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enableParallelBuilding = true;
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}
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