50 lines
2 KiB
Nix
50 lines
2 KiB
Nix
{ lib, pkgs, ... }: { ... }@attrs: let
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stdenv = attrs.stdenv or attrs.baseStdenv;
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pkgs' = attrs.pkgs or attrs.buildPackages;
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inherit (pkgs'.stdenv.cc) isClang;
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inherit (pkgs'.stdenv.cc.bintools) isLLVM;
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in pkgs.addAttrsToDerivation (prevAttrs: let
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inherit (lib) optionals optionalAttrs toList;
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inherit (stdenv) targetPlatform;
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ffpContract = prevAttrs.ffpContract or true;
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autoVarInit = prevAttrs.autoVarInit or null;
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boundsCheck = prevAttrs.boundsCheck or false;
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overrideAlloc = prevAttrs.overrideAlloc or true;
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inputs = optionals overrideAlloc [ pkgs.mimalloc ];
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cflags = [ "-pipe" ]
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++ optionals isClang [ "-ffp-contract=fast-honor-pragmas" ]
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++ optionals isLLVM [ "-flto" ]
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++ optionals (autoVarInit != null) [ "-ftrivial-auto-var-init=${autoVarInit}" ]
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++ optionals boundsCheck [ "-fsanitize-trap=bounds,object-size,vla-bound" ];
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ldflags = [ "-O2" "--hash-style=gnu" ]
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++ optionals isLLVM [ "--icf=safe" "--lto-O2" ]
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++ optionals overrideAlloc [ "-lmimalloc" ];
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rustflags = [
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"-C" "opt-level=2"
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"-C" "linker-flavor=ld.lld"
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"-C" "lto"
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"-C" "linker-plugin-lto"
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"-C" "target-cpu=${targetPlatform.gcc.arch}"
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] ++ (map (flag: [ "-C" "link-arg=${flag}" ]) ldflags |> lib.flatten);
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goflags = [ "-ldflags=-linkmode=external" ];
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in {
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buildInputs = prevAttrs.buildInputs or [ ] ++ inputs;
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env = prevAttrs.env or { } // optionalAttrs (!prevAttrs ? NIX_CFLAGS_COMPILE) {
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NIX_CFLAGS_COMPILE = toList prevAttrs.env.NIX_CFLAGS_COMPILE or [ ] ++ cflags |> toString;
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} // optionalAttrs (prevAttrs ? env.NIX_LDFLAGS) {
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NIX_LDFLAGS = toList prevAttrs.env.NIX_LDFLAGS or [ ] ++ ldflags |> toString;
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};
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NIX_RUSTFLAGS = prevAttrs.NIX_RUSTFLAGS or [ ] ++ rustflags;
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GOFLAGS = prevAttrs.GOFLAGS or [ ] ++ goflags;
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} // optionalAttrs (prevAttrs ? NIX_CFLAGS_COMPILE) {
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NIX_CFLAGS_COMPILE = toList prevAttrs.NIX_CFLAGS_COMPILE or [ ] ++ cflags;
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} // optionalAttrs (!prevAttrs ? env.NIX_LDFLAGS) {
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NIX_LDFLAGS = lib.toList prevAttrs.NIX_LDFLAGS or [ ] ++ ldflags;
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}) stdenv
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