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https://github.com/NixOS/nixpkgs
synced 2024-10-18 10:50:13 -04:00
e0464e4788
In preparation for the deprecation of `stdenv.isX`. These shorthands are not conducive to cross-compilation because they hide the platforms. Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way One example of why this is bad and especially affects compiler packages https://www.github.com/NixOS/nixpkgs/pull/343059 There are too many files to go through manually but a treewide should get users thinking when they see a `hostPlatform.isX` in a place where it doesn't make sense. ``` fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is" fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is" ```
59 lines
1.9 KiB
Nix
59 lines
1.9 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib) last splitString mkOption types optionals;
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libDir = pkgs.stdenv.hostPlatform.libDir;
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ldsoBasename = builtins.unsafeDiscardStringContext (last (splitString "/" pkgs.stdenv.cc.bintools.dynamicLinker));
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# Hard-code to avoid creating another instance of nixpkgs. Also avoids eval errors in some cases.
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libDir32 = "lib"; # pkgs.pkgsi686Linux.stdenv.hostPlatform.libDir
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ldsoBasename32 = "ld-linux.so.2"; # last (splitString "/" pkgs.pkgsi686Linux.stdenv.cc.bintools.dynamicLinker)
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in {
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options = {
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environment.ldso = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = ''
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The executable to link into the normal FHS location of the ELF loader.
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'';
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};
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environment.ldso32 = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = ''
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The executable to link into the normal FHS location of the 32-bit ELF loader.
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This currently only works on x86_64 architectures.
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'';
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};
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};
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config = {
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assertions = [
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{ assertion = isNull config.environment.ldso32 || pkgs.stdenv.hostPlatform.isx86_64;
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message = "Option environment.ldso32 currently only works on x86_64.";
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}
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];
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systemd.tmpfiles.rules = (
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if isNull config.environment.ldso then [
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"r /${libDir}/${ldsoBasename} - - - - -"
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] else [
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"d /${libDir} 0755 root root - -"
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"L+ /${libDir}/${ldsoBasename} - - - - ${config.environment.ldso}"
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]
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) ++ optionals pkgs.stdenv.hostPlatform.isx86_64 (
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if isNull config.environment.ldso32 then [
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"r /${libDir32}/${ldsoBasename32} - - - - -"
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] else [
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"d /${libDir32} 0755 root root - -"
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"L+ /${libDir32}/${ldsoBasename32} - - - - ${config.environment.ldso32}"
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]
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);
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};
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meta.maintainers = with lib.maintainers; [ tejing ];
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}
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