91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
| { lib, clangStdenv, clang-sierraHack-stdenv, stdenvNoCC }:
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| 
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| let
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|   makeBigExe = stdenv: prefix: rec {
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| 
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|     count = 320;
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| 
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|     sillyLibs = lib.genList (i: stdenv.mkDerivation rec {
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|       name = "${prefix}-fluff-${toString i}";
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|       unpackPhase = ''
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|         src=$PWD
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|         cat << 'EOF' > ${name}.c
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|         unsigned int asdf_${toString i}(void) {
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|           return ${toString i};
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|         }
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|         EOF
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|       '';
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|       buildPhase = ''
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|         $CC -std=c99 -shared ${name}.c -o lib${name}.dylib -Wl,-install_name,$out/lib/lib${name}.dylib
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|       '';
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|       installPhase = ''
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|         mkdir -p "$out/lib"
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|         mv lib${name}.dylib "$out/lib"
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|       '';
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|       meta.platforms = lib.platforms.darwin;
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|     }) count;
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| 
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|     finalExe = stdenv.mkDerivation {
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|       name = "${prefix}-final-asdf";
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|       unpackPhase = ''
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|         src=$PWD
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|         cat << 'EOF' > main.cxx
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| 
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|         #include <cstdlib>
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|         #include <iostream>
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| 
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|         ${toString (lib.genList (i: "extern \"C\" unsigned int asdf_${toString i}(void); ") count)}
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| 
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|         unsigned int (*funs[])(void) = {
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|           ${toString (lib.genList (i: "asdf_${toString i},") count)}
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|         };
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| 
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|         int main(int argc, char **argv) {
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|           bool ret;
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|           unsigned int i = 0;
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|           for (auto f : funs) {
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|             if (f() != i++) {
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|               std::cerr << "Failed to get expected response from function #" << i << std::endl;
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|               return EXIT_FAILURE;
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|             }
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|           }
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|           return EXIT_SUCCESS;
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|         }
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|         EOF
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|       '';
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|       buildPhase = ''
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|         $CXX -std=c++11 main.cxx ${toString (map (x: "-l${x.name}") sillyLibs)} -o ${prefix}-asdf
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|       '';
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|       buildInputs = sillyLibs;
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|       installPhase = ''
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|         mkdir -p "$out/bin"
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|         mv ${prefix}-asdf "$out/bin"
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|       '';
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|       meta.platforms = lib.platforms.darwin;
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|     };
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| 
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|   };
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| 
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|   good = makeBigExe clang-sierraHack-stdenv "good";
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| 
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|   bad  = makeBigExe clangStdenv             "bad";
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| 
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| in stdenvNoCC.mkDerivation {
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|   name = "macos-sierra-shared-test";
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|   buildInputs = [ good.finalExe bad.finalExe ];
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|   # TODO(@Ericson2314): Be impure or require exact MacOS version of builder?
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|   buildCommand = ''
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|     if bad-asdf &> /dev/null
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|     then echo "WARNING: bad-asdf did not fail, not running on sierra?" >&2
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|     else echo "bad-asdf should fail on sierra, OK" >&2
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|     fi
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| 
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|     # Must succeed on all supported MacOS versions
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|     good-asdf
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|     echo "good-asdf should succeed on sierra, OK"
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| 
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|     touch $out
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|   '';
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|   meta.platforms = lib.platforms.darwin;
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| }
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