65 lines
1.6 KiB
Nix
65 lines
1.6 KiB
Nix
{ lib, clangStdenv, clang-sierraHack-stdenv }:
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let
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makeBigExe = stdenv: prefix: rec {
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count = 500;
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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 "$out/lib"
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'';
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}) count;
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finalExe = stdenv.mkDerivation rec {
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name = "${prefix}-final-asdf";
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unpackPhase = ''
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src=$PWD
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cat << 'EOF' > main.cxx
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#include <assert.h>
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${toString (lib.genList (i: "extern \"C\" unsigned int asdf_${toString i}(void); ") count)}
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unsigned int (*funs[])(void) = {
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${toString (lib.genList (i: "asdf_${toString i},") count)}
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};
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int main(int argc, char **argv) {
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unsigned int i = 0;
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for (auto f : funs) {
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assert(f() == i++);
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}
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return 0;
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}
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EOF
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'';
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buildPhase = ''
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$CC -std=c++11 main.cxx ${toString (map (x: "-l${x.name}") sillyLibs)} -o asdf
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'';
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buildInputs = sillyLibs;
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installPhase = ''
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mkdir -p "$out/bin"
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mv asdf "$out/bin"
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'';
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};
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};
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in {
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good = makeBigExe clang-sierraHack-stdenv "good";
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bad = makeBigExe clangStdenv "bad";
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}
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