47 lines
1.5 KiB
Nix
47 lines
1.5 KiB
Nix
|
pkgs: stdenv:
|
||
|
|
let
|
||
|
|
inherit (pkgs) addAttrsToDerivation mimalloc overrideCC;
|
||
|
|
inherit (pkgs.lib) getLib optionalAttrs optionals toList;
|
||
|
|
inherit (pkgs.llvmPackages_latest) clangUseLLVM bintools;
|
||
|
|
inherit (stdenv) targetPlatform;
|
||
|
|
|
||
|
|
cflags = [
|
||
|
|
"-pipe" # Prefer pipes over temporary files between stages
|
||
|
|
"-O2" # Safe compiler optimisations
|
||
|
|
"-flto=thin"
|
||
|
|
];
|
||
|
|
|
||
|
|
ldflags = [
|
||
|
|
"-O2" # Enable tail merging of strings
|
||
|
|
"--hash-style=gnu" # Produce only DT_GNU_HASH
|
||
|
|
"--icf=safe" # Fold identical code where safe
|
||
|
|
"--lto-O2"
|
||
|
|
|
||
|
|
"-L${getLib mimalloc}/lib" "-lmimalloc"
|
||
|
|
];
|
||
|
|
|
||
|
|
rustflags = [
|
||
|
|
"-C opt-level=2"
|
||
|
|
"-C linker-flavor=lld"
|
||
|
|
"-C lto=thin"
|
||
|
|
"-C linker-plugin-lto"
|
||
|
|
] ++ optionals (targetPlatform.isx86_64 && targetPlatform ? gcc.arch) [
|
||
|
|
"-C target-cpu=${targetPlatform.gcc.arch}"
|
||
|
|
] ++ map (flag: "-C link-arg=${flag}") ldflags;
|
||
|
|
|
||
|
|
in addAttrsToDerivation (base: {
|
||
|
|
env = (base.env or { }) // optionalAttrs (!base ? NIX_CFLAGS_COMPILE) {
|
||
|
|
NIX_CFLAGS_COMPILE =
|
||
|
|
toString (toList base.env.NIX_CFLAGS_COMPILE or [ ] ++ cflags);
|
||
|
|
} // optionalAttrs (base ? env.NIX_LDFLAGS) {
|
||
|
|
NIX_LDFLAGS =
|
||
|
|
toString (toList base.env.NIX_LDFLAGS or [ ] ++ ldflags);
|
||
|
|
};
|
||
|
|
|
||
|
|
NIX_RUSTFLAGS = toList base.NIX_RUSTFLAGS or [ ] ++ rustflags;
|
||
|
|
} // optionalAttrs (base ? env.NIX_CFLAGS) {
|
||
|
|
NIX_CFLAGS_COMPILE = toList base.NIX_CFLAGS_COMPILE or [ ] ++ cflags;
|
||
|
|
} // optionalAttrs (!base ? env.NIX_LDFLAGS) {
|
||
|
|
NIX_LDFLAGS = toList base.NIX_LDFLAGS or [ ] ++ ldflags;
|
||
|
|
}) (overrideCC stdenv (clangUseLLVM.override { inherit bintools; }))
|