56 lines
2.2 KiB
Nix
56 lines
2.2 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;
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inherit (stdenv) buildPlatform hostPlatform targetPlatform;
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inherit (stdenv.cc) isClang nativePrefix targetPrefix;
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inherit (stdenv.cc.bintools) isLLVM;
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inherit (lib) optionals optionalAttrs toList;
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in pkgs.addAttrsToDerivation (prevAttrs: let
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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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cflags = [ "-pipe" "-fno-semantic-interposition" ]
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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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"-C" "link-arg=-O2"
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"-C" "link-arg=--hash-style=gnu"
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"-C" "link-arg=--icf=safe"
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"-C" "link-arg=--lto-O2"
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] ++ optionals overrideAlloc [ "-C" "link-arg=-lmimalloc" ];
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goflags = [ "-ldflags=-linkmode=external" ];
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in {
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buildInputs = prevAttrs.buildInputs or [ ]
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++ optionals overrideAlloc [ pkgs.mimalloc ];
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env = prevAttrs.env or { }
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// optionalAttrs (prevAttrs ? env.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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NIX_RUSTFLAGS = toList prevAttrs.NIX_RUSTFLAGS or [ ] ++ rustflags;
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GOFLAGS = toList prevAttrs.NIX_GOFLAGS or [ ] ++ goflags;
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}
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// optionalAttrs (!prevAttrs ? env.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 = toList prevAttrs.NIX_LDFLAGS or [ ] ++ ldflags; }
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) stdenv';
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