Merge pull request #45820 from obsidiansystems/dont-use-obsolete-platform-aliases

treewide: Dont use obsolete platform aliases

36 files changed, 75 insertions, 85 deletions

diff --git a/pkgs/os-specific/linux/alsa-plugins/wrapper.nix b/pkgs/os-specific/linux/alsa-plugins/wrapper.nix
index 7dbd01bf058e..60262a14c9b2 100644
--- a/pkgs/os-specific/linux/alsa-plugins/wrapper.nix
+++ b/pkgs/os-specific/linux/alsa-plugins/wrapper.nix
@@ -1,5 +1,5 @@
 { writeScriptBin, stdenv, alsaPlugins }:
-writeScriptBin "ap${if stdenv.system == "i686-linux" then "32" else "64"}" ''
+writeScriptBin "ap${if stdenv.hostPlatform.system == "i686-linux" then "32" else "64"}" ''
   #/bin/sh
   ALSA_PLUGIN_DIRS=${alsaPlugins}/lib/alsa-lib "$@"
 ''
diff --git a/pkgs/os-specific/linux/amdgpu-pro/default.nix b/pkgs/os-specific/linux/amdgpu-pro/default.nix
index 97658c831eb0..b72944a49eb1 100644
--- a/pkgs/os-specific/linux/amdgpu-pro/default.nix
+++ b/pkgs/os-specific/linux/amdgpu-pro/default.nix
@@ -16,9 +16,9 @@ let
   bitness = if stdenv.is64bit then "64" else "32";
 
   libArch =
-    if stdenv.system == "i686-linux" then
+    if stdenv.hostPlatform.system == "i686-linux" then
       "i386-linux-gnu"
-    else if stdenv.system == "x86_64-linux" then
+    else if stdenv.hostPlatform.system == "x86_64-linux" then
       "x86_64-linux-gnu"
     else throw "amdgpu-pro is Linux only. Sorry. The build was stopped.";
 
diff --git a/pkgs/os-specific/linux/ati-drivers/default.nix b/pkgs/os-specific/linux/ati-drivers/default.nix
index df6fa3555fee..d5d42faa913e 100644
--- a/pkgs/os-specific/linux/ati-drivers/default.nix
+++ b/pkgs/os-specific/linux/ati-drivers/default.nix
@@ -37,9 +37,9 @@ stdenv.mkDerivation rec {
   build = "15.302";
 
   linuxonly =
-    if stdenv.system == "i686-linux" then
+    if stdenv.hostPlatform.system == "i686-linux" then
       true
-    else if stdenv.system == "x86_64-linux" then
+    else if stdenv.hostPlatform.system == "x86_64-linux" then
       true
     else throw "ati-drivers are Linux only. Sorry. The build was stopped.";
 
diff --git a/pkgs/os-specific/linux/broadcom-sta/default.nix b/pkgs/os-specific/linux/broadcom-sta/default.nix
index 9848882f3b86..541539522f85 100644
--- a/pkgs/os-specific/linux/broadcom-sta/default.nix
+++ b/pkgs/os-specific/linux/broadcom-sta/default.nix
@@ -7,7 +7,7 @@ let
     x86_64-linux = "1gj485qqr190idilacpxwgqyw21il03zph2rddizgj7fbd6pfyaz";
   };
 
-  arch = stdenv.lib.optionalString (stdenv.system == "x86_64-linux") "_64";
+  arch = stdenv.lib.optionalString (stdenv.hostPlatform.system == "x86_64-linux") "_64";
   tarballVersion = stdenv.lib.replaceStrings ["."] ["_"] version;
   tarball = "hybrid-v35${arch}-nodebug-pcoem-${tarballVersion}.tar.gz";
 in
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "https://docs.broadcom.com/docs-and-downloads/docs/linux_sta/${tarball}";
-    sha256 = hashes.${stdenv.system} or (throw "Unsupported system: ${stdenv.system}");
+    sha256 = hashes.${stdenv.hostPlatform.system} or (throw "Unsupported system: ${stdenv.hostPlatform.system}");
   };
 
   hardeningDisable = [ "pic" ];
diff --git a/pkgs/os-specific/linux/busybox/sandbox-shell.nix b/pkgs/os-specific/linux/busybox/sandbox-shell.nix
index b94fae7f787b..de8865ba3acc 100644
--- a/pkgs/os-specific/linux/busybox/sandbox-shell.nix
+++ b/pkgs/os-specific/linux/busybox/sandbox-shell.nix
@@ -1,9 +1,9 @@
-{ busybox, hostPlatform }:
+{ busybox, stdenv}:
 
 # Minimal shell for use as basic /bin/sh in sandbox builds
 busybox.override {
   # musl roadmap has RISC-V support projected for 1.1.20
-  useMusl = !hostPlatform.isRiscV;
+  useMusl = !stdenv.hostPlatform.isRiscV;
   enableStatic = true;
   enableMinimal = true;
   extraConfig = ''
diff --git a/pkgs/os-specific/linux/displaylink/default.nix b/pkgs/os-specific/linux/displaylink/default.nix
index ad42590ad19c..af8c790e325f 100644
--- a/pkgs/os-specific/linux/displaylink/default.nix
+++ b/pkgs/os-specific/linux/displaylink/default.nix
@@ -3,8 +3,8 @@
 
 let
   arch =
-    if stdenv.system == "x86_64-linux" then "x64"
-    else if stdenv.system == "i686-linux" then "x86"
+    if stdenv.hostPlatform.system == "x86_64-linux" then "x64"
+    else if stdenv.hostPlatform.system == "i686-linux" then "x86"
     else throw "Unsupported architecture";
   bins = "${arch}-ubuntu-1604";
   libPath = lib.makeLibraryPath [ stdenv.cc.cc utillinux libusb1 evdi ];
diff --git a/pkgs/os-specific/linux/fusionio/util.nix b/pkgs/os-specific/linux/fusionio/util.nix
index 0f1e2748c889..6327a95f39d7 100644
--- a/pkgs/os-specific/linux/fusionio/util.nix
+++ b/pkgs/os-specific/linux/fusionio/util.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
     description = "Fusionio command line utilities";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
-    broken = stdenv.system != "x86_64-linux";
+    broken = stdenv.hostPlatform.system != "x86_64-linux";
     maintainers = with maintainers; [ wkennington ];
   };
 }
diff --git a/pkgs/os-specific/linux/fusionio/vsl.nix b/pkgs/os-specific/linux/fusionio/vsl.nix
index 665c4b4d0813..6ebe2e0cdaf5 100644
--- a/pkgs/os-specific/linux/fusionio/vsl.nix
+++ b/pkgs/os-specific/linux/fusionio/vsl.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
     description = "Kernel driver for accessing fusion-io cards";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
-    broken = stdenv.system != "x86_64-linux";
+    broken = stdenv.hostPlatform.system != "x86_64-linux";
     maintainers = with maintainers; [ wkennington ];
   };
 }
diff --git a/pkgs/os-specific/linux/kernel-headers/default.nix b/pkgs/os-specific/linux/kernel-headers/default.nix
index 677bb076b0c8..e82b785f624a 100644
--- a/pkgs/os-specific/linux/kernel-headers/default.nix
+++ b/pkgs/os-specific/linux/kernel-headers/default.nix
@@ -1,9 +1,8 @@
 { stdenvNoCC, lib, buildPackages
-, hostPlatform
 , fetchurl, perl
 }:
 
-assert hostPlatform.isLinux;
+assert stdenvNoCC.hostPlatform.isLinux;
 
 let
   common = { version, sha256, patches ? null }: stdenvNoCC.mkDerivation {
@@ -14,14 +13,14 @@ let
       inherit sha256;
     };
 
-    ARCH = hostPlatform.platform.kernelArch;
+    ARCH = stdenvNoCC.hostPlatform.platform.kernelArch;
 
     # It may look odd that we use `stdenvNoCC`, and yet explicit depend on a cc.
     # We do this so we have a build->build, not build->host, C compiler.
     depsBuildBuild = [ buildPackages.stdenv.cc ];
     nativeBuildInputs = [ perl ];
 
-    extraIncludeDirs = lib.optional hostPlatform.isPowerPC ["ppc"];
+    extraIncludeDirs = lib.optional stdenvNoCC.hostPlatform.isPowerPC ["ppc"];
 
     # "patches" array defaults to 'null' to avoid changing hash
     # and causing mass rebuild
diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index bf99729b33e3..27a615d7bb96 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -114,7 +114,7 @@ let
       IP_DCCP_CCID3      = no; # experimental
       CLS_U32_PERF       = yes;
       CLS_U32_MARK       = yes;
-      BPF_JIT            = when (stdenv.system == "x86_64-linux") yes;
+      BPF_JIT            = when (stdenv.hostPlatform.system == "x86_64-linux") yes;
       WAN                = yes;
       # Required by systemd per-cgroup firewalling
       CGROUP_BPF                  = option yes;
@@ -184,7 +184,7 @@ let
       FB_VESA             = yes;
       FRAMEBUFFER_CONSOLE = yes;
       FRAMEBUFFER_CONSOLE_ROTATION = yes;
-      FB_GEODE            = when (stdenv.system == "i686-linux") yes;
+      FB_GEODE            = when (stdenv.hostPlatform.system == "i686-linux") yes;
     };
 
     video = {
@@ -497,7 +497,7 @@ let
     };
 
     # Support x2APIC (which requires IRQ remapping)
-    x2apic = optionalAttrs (stdenv.system == "x86_64-linux") {
+    x2apic = optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {
       X86_X2APIC = yes;
       IRQ_REMAP  = yes;
     };
diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index 4af5e80a655a..e424dff596d3 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -35,15 +35,14 @@
   # symbolic name and `patch' is the actual patch.  The patch may
   # optionally be compressed with gzip or bzip2.
   kernelPatches ? []
-, ignoreConfigErrors ? hostPlatform.platform.name != "pc" ||
-                       hostPlatform != stdenv.buildPlatform
+, ignoreConfigErrors ? stdenv.hostPlatform.platform.name != "pc" ||
+                       stdenv.hostPlatform != stdenv.buildPlatform
 , extraMeta ? {}
-, hostPlatform
 
-# easy overrides to hostPlatform.platform members
-, autoModules ? hostPlatform.platform.kernelAutoModules
-, preferBuiltin ? hostPlatform.platform.kernelPreferBuiltin or false
-, kernelArch ? hostPlatform.platform.kernelArch
+# easy overrides to stdenv.hostPlatform.platform members
+, autoModules ? stdenv.hostPlatform.platform.kernelAutoModules
+, preferBuiltin ? stdenv.hostPlatform.platform.kernelPreferBuiltin or false
+, kernelArch ? stdenv.hostPlatform.platform.kernelArch
 
 , mkValueOverride ? null
 , ...
@@ -69,7 +68,7 @@ let
     inherit stdenv version structuredExtraConfig mkValueOverride;
 
     # append extraConfig for backwards compatibility but also means the user can't override the kernelExtraConfig part
-    extraConfig = extraConfig + lib.optionalString (hostPlatform.platform ? kernelExtraConfig) hostPlatform.platform.kernelExtraConfig;
+    extraConfig = extraConfig + lib.optionalString (stdenv.hostPlatform.platform ? kernelExtraConfig) stdenv.hostPlatform.platform.kernelExtraConfig;
 
     features = kernelFeatures; # Ensure we know of all extra patches, etc.
   };
@@ -93,11 +92,11 @@ let
     nativeBuildInputs = [ perl ]
       ++ lib.optionals (stdenv.lib.versionAtLeast version "4.16") [ bison flex ];
 
-    platformName = hostPlatform.platform.name;
+    platformName = stdenv.hostPlatform.platform.name;
     # e.g. "defconfig"
-    kernelBaseConfig = if defconfig != null then defconfig else hostPlatform.platform.kernelBaseConfig;
+    kernelBaseConfig = if defconfig != null then defconfig else stdenv.hostPlatform.platform.kernelBaseConfig;
     # e.g. "bzImage"
-    kernelTarget = hostPlatform.platform.kernelTarget;
+    kernelTarget = stdenv.hostPlatform.platform.kernelTarget;
 
     prePatch = kernel.prePatch + ''
       # Patch kconfig to print "###" after every question so that
@@ -128,7 +127,7 @@ let
   };
 
   kernel = (callPackage ./manual-config.nix {}) {
-    inherit version modDirVersion src kernelPatches stdenv extraMeta configfile hostPlatform;
+    inherit version modDirVersion src kernelPatches stdenv extraMeta configfile;
 
     config = { CONFIG_MODULES = "y"; CONFIG_FW_LOADER = "m"; };
   };
diff --git a/pkgs/os-specific/linux/kernel/linux-4.14.nix b/pkgs/os-specific/linux/kernel/linux-4.14.nix
index bbc985925030..000764eca9b3 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.14.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.14.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
 
 with stdenv.lib;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-4.17.nix b/pkgs/os-specific/linux/kernel/linux-4.17.nix
index c9a79fd23cba..5c13f366221e 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.17.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.17.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
 
 with stdenv.lib;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-4.18.nix b/pkgs/os-specific/linux/kernel/linux-4.18.nix
index bbd0bbfbb21c..e76beadc27bf 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.18.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.18.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
 
 with stdenv.lib;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-4.4.nix b/pkgs/os-specific/linux/kernel/linux-4.4.nix
index a4433cc434c5..7c5f345e3400 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.4.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.4.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.4.153";
diff --git a/pkgs/os-specific/linux/kernel/linux-4.9.nix b/pkgs/os-specific/linux/kernel/linux-4.9.nix
index 8fa710a0e469..ed0075b7876b 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.9.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.9.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.9.124";
diff --git a/pkgs/os-specific/linux/kernel/linux-beagleboard.nix b/pkgs/os-specific/linux/kernel/linux-beagleboard.nix
index 4f0ff53c59ce..e98104f11ca9 100644
--- a/pkgs/os-specific/linux/kernel/linux-beagleboard.nix
+++ b/pkgs/os-specific/linux/kernel/linux-beagleboard.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ubootTools, dtc, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ubootTools, dtc, ... } @ args:
 
 let
   modDirVersion = "4.14.12";
diff --git a/pkgs/os-specific/linux/kernel/linux-copperhead-lts.nix b/pkgs/os-specific/linux/kernel/linux-copperhead-lts.nix
index 85ad00efcd67..366cfd39e4af 100644
--- a/pkgs/os-specific/linux/kernel/linux-copperhead-lts.nix
+++ b/pkgs/os-specific/linux/kernel/linux-copperhead-lts.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ... } @ args:
 
 with stdenv.lib;
 
diff --git a/pkgs/os-specific/linux/kernel/linux-hardkernel-4.14.nix b/pkgs/os-specific/linux/kernel/linux-hardkernel-4.14.nix
index 2bce56e1e529..d1d7d240cce5 100644
--- a/pkgs/os-specific/linux/kernel/linux-hardkernel-4.14.nix
+++ b/pkgs/os-specific/linux/kernel/linux-hardkernel-4.14.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, libelf, utillinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, libelf, utillinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.14.66-147";
diff --git a/pkgs/os-specific/linux/kernel/linux-mptcp-93.nix b/pkgs/os-specific/linux/kernel/linux-mptcp-93.nix
index 2efe357cbd68..8be59fbea903 100644
--- a/pkgs/os-specific/linux/kernel/linux-mptcp-93.nix
+++ b/pkgs/os-specific/linux/kernel/linux-mptcp-93.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ... } @ args:
 
 buildLinux (rec {
   mptcpVersion = "0.93";
diff --git a/pkgs/os-specific/linux/kernel/linux-mptcp.nix b/pkgs/os-specific/linux/kernel/linux-mptcp.nix
index a439fd0a6ec5..8014cb565267 100644
--- a/pkgs/os-specific/linux/kernel/linux-mptcp.nix
+++ b/pkgs/os-specific/linux/kernel/linux-mptcp.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ... } @ args:
 
 buildLinux (rec {
   mptcpVersion = "0.94";
diff --git a/pkgs/os-specific/linux/kernel/linux-riscv.nix b/pkgs/os-specific/linux/kernel/linux-riscv.nix
index 60370311865f..dbc69144c4da 100644
--- a/pkgs/os-specific/linux/kernel/linux-riscv.nix
+++ b/pkgs/os-specific/linux/kernel/linux-riscv.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, libelf, utillinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, libelf, utillinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.16-rc6";
diff --git a/pkgs/os-specific/linux/kernel/linux-rpi.nix b/pkgs/os-specific/linux/kernel/linux-rpi.nix
index e68a0ed26719..e6d7b1cee9db 100644
--- a/pkgs/os-specific/linux/kernel/linux-rpi.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rpi.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ... } @ args:
 
 let
   modDirVersion = "4.14.50";
@@ -18,7 +18,7 @@ stdenv.lib.overrideDerivation (buildLinux (args // rec {
   defconfig = {
     "armv6l-linux" = "bcmrpi_defconfig";
     "armv7l-linux" = "bcm2709_defconfig";
-  }.${stdenv.system} or (throw "linux_rpi not supported on '${stdenv.system}'");
+  }.${stdenv.hostPlatform.system} or (throw "linux_rpi not supported on '${stdenv.hostPlatform.system}'");
 
   features = {
     efiBootStub = false;
diff --git a/pkgs/os-specific/linux/kernel/linux-samus-4.12.nix b/pkgs/os-specific/linux/kernel/linux-samus-4.12.nix
index 442c89675119..0a936c6c053b 100644
--- a/pkgs/os-specific/linux/kernel/linux-samus-4.12.nix
+++ b/pkgs/os-specific/linux/kernel/linux-samus-4.12.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchFromGitHub, perl, buildLinux, ncurses, ... } @ args:
+{ stdenv, buildPackages, fetchFromGitHub, perl, buildLinux, ncurses, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.12.2";
diff --git a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
index 1fb9866f4e95..f9d2bd11813e 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchgit, perl, buildLinux, ... } @ args:
+{ stdenv, buildPackages, fetchgit, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.16.2018.08.03";
diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index c2feeceb0729..44f267bf7151 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, libelf, utillinux, ... } @ args:
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, libelf, utillinux, ... } @ args:
 
 buildLinux (args // rec {
   version = "4.19-rc1";
diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index 33aa22abaf22..2cc83e62d11e 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -36,8 +36,6 @@ in {
   allowImportFromDerivation ? false,
   # ignored
   features ? null,
-
-  hostPlatform
 }:
 
 let
@@ -56,8 +54,8 @@ let
 
   commonMakeFlags = [
     "O=$(buildRoot)"
-  ] ++ stdenv.lib.optionals (hostPlatform.platform ? kernelMakeFlags)
-    hostPlatform.platform.kernelMakeFlags;
+  ] ++ stdenv.lib.optionals (stdenv.hostPlatform.platform ? kernelMakeFlags)
+    stdenv.hostPlatform.platform.kernelMakeFlags;
 
   drvAttrs = config_: platform: kernelPatches: configfile:
     let
@@ -255,7 +253,7 @@ in
 
 assert stdenv.lib.versionAtLeast version "4.14" -> libelf != null;
 assert stdenv.lib.versionAtLeast version "4.15" -> utillinux != null;
-stdenv.mkDerivation ((drvAttrs config hostPlatform.platform kernelPatches configfile) // {
+stdenv.mkDerivation ((drvAttrs config stdenv.hostPlatform.platform kernelPatches configfile) // {
   name = "linux-${version}";
 
   enableParallelBuilding = true;
@@ -279,5 +277,5 @@ stdenv.mkDerivation ((drvAttrs config hostPlatform.platform kernelPatches config
     "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
   ];
 
-  karch = hostPlatform.platform.kernelArch;
+  karch = stdenv.hostPlatform.platform.kernelArch;
 })
diff --git a/pkgs/os-specific/linux/klibc/default.nix b/pkgs/os-specific/linux/klibc/default.nix
index c503b982aa29..8cae61d56a92 100644
--- a/pkgs/os-specific/linux/klibc/default.nix
+++ b/pkgs/os-specific/linux/klibc/default.nix
@@ -1,6 +1,4 @@
-{ stdenv, fetchurl, linuxHeaders, perl
-, buildPlatform, hostPlatform
-}:
+{ stdenv, fetchurl, linuxHeaders, perl }:
 
 let
   commonMakeFlags = [
@@ -25,12 +23,12 @@ stdenv.mkDerivation rec {
   hardeningDisable = [ "format" "stackprotector" ];
 
   makeFlags = commonMakeFlags ++ [
-    "KLIBCARCH=${hostPlatform.platform.kernelArch}"
+    "KLIBCARCH=${stdenv.hostPlatform.platform.kernelArch}"
     "KLIBCKERNELSRC=${linuxHeaders}"
   ] # TODO(@Ericson2314): We now can get the ABI from
-    # `hostPlatform.parsed.abi`, is this still a good idea?
-    ++ stdenv.lib.optional (hostPlatform.platform.kernelArch == "arm") "CONFIG_AEABI=y"
-    ++ stdenv.lib.optional (hostPlatform != buildPlatform) "CROSS_COMPILE=${stdenv.cc.targetPrefix}";
+    # `stdenv.hostPlatform.parsed.abi`, is this still a good idea?
+    ++ stdenv.lib.optional (stdenv.hostPlatform.platform.kernelArch == "arm") "CONFIG_AEABI=y"
+    ++ stdenv.lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) "CROSS_COMPILE=${stdenv.cc.targetPrefix}";
 
   # Install static binaries as well.
   postInstall = ''
diff --git a/pkgs/os-specific/linux/mdadm/default.nix b/pkgs/os-specific/linux/mdadm/default.nix
index 6de666630bb3..52a5f16bc52c 100644
--- a/pkgs/os-specific/linux/mdadm/default.nix
+++ b/pkgs/os-specific/linux/mdadm/default.nix
@@ -1,6 +1,5 @@
 { stdenv, writeScript
 , fetchurl, groff
-, buildPlatform, hostPlatform
 }:
 
 let
@@ -32,7 +31,7 @@ stdenv.mkDerivation rec {
     "NIXOS=1" "INSTALL=install" "INSTALL_BINDIR=$(out)/sbin"
     "MANDIR=$(out)/share/man" "RUN_DIR=/dev/.mdadm"
     "STRIP="
-  ] ++ stdenv.lib.optionals (hostPlatform != buildPlatform) [
+  ] ++ stdenv.lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
     "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
   ];
 
diff --git a/pkgs/os-specific/linux/musl/default.nix b/pkgs/os-specific/linux/musl/default.nix
index e586539db08d..9628ec516763 100644
--- a/pkgs/os-specific/linux/musl/default.nix
+++ b/pkgs/os-specific/linux/musl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, hostPlatform
+{ stdenv, lib, fetchurl
 , linuxHeaders ? null
 , useBSDCompatHeaders ? true
 }:
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
     configureFlagsArray+=("--syslibdir=$out/lib")
   '';
 
-  CFLAGS="-fstack-protector-strong" + lib.optionalString hostPlatform.isPower " -mlong-double-64";
+  CFLAGS="-fstack-protector-strong" + lib.optionalString stdenv.hostPlatform.isPower " -mlong-double-64";
 
   configureFlags = [
     "--enable-shared"
diff --git a/pkgs/os-specific/linux/nvidia-x11/generic.nix b/pkgs/os-specific/linux/nvidia-x11/generic.nix
index 0ededc08050d..06125787a588 100644
--- a/pkgs/os-specific/linux/nvidia-x11/generic.nix
+++ b/pkgs/os-specific/linux/nvidia-x11/generic.nix
@@ -34,22 +34,22 @@ let
     builder = ./builder.sh;
 
     src =
-      if stdenv.system == "i686-linux" then
+      if stdenv.hostPlatform.system == "i686-linux" then
         fetchurl {
           url = "https://download.nvidia.com/XFree86/Linux-x86/${version}/NVIDIA-Linux-x86-${version}${pkgSuffix}.run";
           sha256 = sha256_32bit;
         }
-      else if stdenv.system == "x86_64-linux" then
+      else if stdenv.hostPlatform.system == "x86_64-linux" then
         fetchurl {
           url = "https://download.nvidia.com/XFree86/Linux-x86_64/${version}/NVIDIA-Linux-x86_64-${version}${pkgSuffix}.run";
           sha256 = sha256_64bit;
         }
-      else throw "nvidia-x11 does not support platform ${stdenv.system}";
+      else throw "nvidia-x11 does not support platform ${stdenv.hostPlatform.system}";
 
     patches = if libsOnly then null else patches;
     inherit prePatch;
     inherit version useGLVND useProfiles;
-    inherit (stdenv) system;
+    inherit (stdenv.hostPlatform) system;
 
     outputs = [ "out" ] ++ optional (!libsOnly) "bin";
     outputDev = if libsOnly then null else "bin";
diff --git a/pkgs/os-specific/linux/pam/default.nix b/pkgs/os-specific/linux/pam/default.nix
index 0e7033972496..9db581ad527d 100644
--- a/pkgs/os-specific/linux/pam/default.nix
+++ b/pkgs/os-specific/linux/pam/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPackages, hostPlatform, fetchurl, fetchpatch, flex, cracklib, db4 }:
+{ stdenv, buildPackages, fetchurl, fetchpatch, flex, cracklib, db4 }:
 
 stdenv.mkDerivation rec {
   name = "linux-pam-${version}";
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
     sha256 = "1fyi04d5nsh8ivd0rn2y0z83ylgc0licz7kifbb6xxi2ylgfs6i4";
   };
 
-  patches = stdenv.lib.optionals (hostPlatform.libc == "musl") [
+  patches = stdenv.lib.optionals (stdenv.hostPlatform.libc == "musl") [
     (fetchpatch {
       url = "https://git.alpinelinux.org/cgit/aports/plain/main/linux-pam/fix-compat.patch?id=05a62bda8ec255d7049a2bd4cf0fdc4b32bdb2cc";
       sha256 = "1h5yp5h2mqp1fcwiwwklyfpa69a3i03ya32pivs60fd7g5bqa7sf";
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   preConfigure = ''
     configureFlags="$configureFlags --includedir=$out/include/security"
-  '' + stdenv.lib.optionalString (hostPlatform.libc == "musl") ''
+  '' + stdenv.lib.optionalString (stdenv.hostPlatform.libc == "musl") ''
       # export ac_cv_search_crypt=no
       # (taken from Alpine linux, apparently insecure but also doesn't build O:))
       # disable insecure modules
diff --git a/pkgs/os-specific/linux/prl-tools/default.nix b/pkgs/os-specific/linux/prl-tools/default.nix
index be93ff6f2eb9..1a4919a5d9d4 100644
--- a/pkgs/os-specific/linux/prl-tools/default.nix
+++ b/pkgs/os-specific/linux/prl-tools/default.nix
@@ -10,8 +10,8 @@ assert kernel != null -> stdenv.lib.versionOlder kernel.version "4.15";
 
 let xorgFullVer = (builtins.parseDrvName xorg.xorgserver.name).version;
     xorgVer = lib.concatStringsSep "." (lib.take 2 (lib.splitString "." xorgFullVer));
-    x64 = if stdenv.system == "x86_64-linux" then true
-          else if stdenv.system == "i686-linux" then false
+    x64 = if stdenv.hostPlatform.system == "x86_64-linux" then true
+          else if stdenv.hostPlatform.system == "i686-linux" then false
           else throw "Parallels Tools for Linux only support {x86-64,i686}-linux targets";
 in
 stdenv.mkDerivation rec {
diff --git a/pkgs/os-specific/linux/shadow/default.nix b/pkgs/os-specific/linux/shadow/default.nix
index 885ea3421f65..8c778e72b704 100644
--- a/pkgs/os-specific/linux/shadow/default.nix
+++ b/pkgs/os-specific/linux/shadow/default.nix
@@ -1,15 +1,14 @@
 { stdenv, fetchpatch, fetchFromGitHub, autoreconfHook, libxslt, libxml2
 , docbook_xml_dtd_412, docbook_xsl, gnome-doc-utils, flex, bison
 , pam ? null, glibcCross ? null
-, buildPlatform, hostPlatform
 }:
 
 let
 
   glibc =
-    if hostPlatform != buildPlatform
+    if stdenv.hostPlatform != stdenv.buildPlatform
     then glibcCross
-    else assert hostPlatform.libc == "glibc"; stdenv.cc.libc;
+    else assert stdenv.hostPlatform.libc == "glibc"; stdenv.cc.libc;
 
   dots_in_usernames = fetchpatch {
     url = http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-apps/shadow/files/shadow-4.1.3-dots-in-usernames.patch;
@@ -63,9 +62,9 @@ stdenv.mkDerivation rec {
   configureFlags = [
     "--enable-man"
     "--with-group-name-max-length=32"
-  ] ++ stdenv.lib.optional (hostPlatform.libc != "glibc") "--disable-nscd";
+  ] ++ stdenv.lib.optional (stdenv.hostPlatform.libc != "glibc") "--disable-nscd";
 
-  preBuild = stdenv.lib.optionalString (hostPlatform.libc == "glibc")
+  preBuild = stdenv.lib.optionalString (stdenv.hostPlatform.libc == "glibc")
     ''
       substituteInPlace lib/nscd.c --replace /usr/sbin/nscd ${glibc.bin}/bin/nscd
     '';
diff --git a/pkgs/os-specific/linux/systemd/default.nix b/pkgs/os-specific/linux/systemd/default.nix
index 912ba5b5e0ef..b4caa63799c7 100644
--- a/pkgs/os-specific/linux/systemd/default.nix
+++ b/pkgs/os-specific/linux/systemd/default.nix
@@ -8,7 +8,6 @@
 , ninja, meson, python3Packages, glibcLocales
 , patchelf
 , getent
-, hostPlatform
 , buildPackages
 , withSelinux ? false, libselinux
 , withLibseccomp ? libseccomp.meta.available, libseccomp
@@ -79,7 +78,7 @@ in stdenv.mkDerivation rec {
     "-Dsystem-gid-max=499"
     # "-Dtime-epoch=1"
 
-    (if stdenv.isAarch32 || stdenv.isAarch64 || !hostPlatform.isEfi then "-Dgnu-efi=false" else "-Dgnu-efi=true")
+    (if stdenv.isAarch32 || stdenv.isAarch64 || !stdenv.hostPlatform.isEfi then "-Dgnu-efi=false" else "-Dgnu-efi=true")
     "-Defi-libdir=${toString gnu-efi}/lib"
     "-Defi-includedir=${toString gnu-efi}/include/efi"
     "-Defi-ldsdir=${toString gnu-efi}/lib"
diff --git a/pkgs/os-specific/linux/uclibc/default.nix b/pkgs/os-specific/linux/uclibc/default.nix
index 3da12c41dc12..de1e47faf666 100644
--- a/pkgs/os-specific/linux/uclibc/default.nix
+++ b/pkgs/os-specific/linux/uclibc/default.nix
@@ -1,6 +1,5 @@
 { stdenv, buildPackages
 , fetchurl, linuxHeaders, libiconvReal
-, buildPlatform, hostPlatform
 , extraConfig ? ""
 }:
 
@@ -40,7 +39,7 @@ let
     UCLIBC_SUSV4_LEGACY y
     UCLIBC_HAS_THREADS_NATIVE y
     KERNEL_HEADERS "${linuxHeaders}/include"
-  '' + stdenv.lib.optionalString (stdenv.isAarch32 && buildPlatform != hostPlatform) ''
+  '' + stdenv.lib.optionalString (stdenv.isAarch32 && stdenv.buildPlatform != stdenv.hostPlatform) ''
     CONFIG_ARM_EABI y
     ARCH_WANTS_BIG_ENDIAN n
     ARCH_BIG_ENDIAN n
@@ -69,7 +68,7 @@ stdenv.mkDerivation {
     cat << EOF | parseconfig
     ${nixConfig}
     ${extraConfig}
-    ${hostPlatform.platform.uclibc.extraConfig or ""}
+    ${stdenv.hostPlatform.platform.uclibc.extraConfig or ""}
     EOF
     ( set +o pipefail; yes "" | make oldconfig )
   '';
@@ -82,7 +81,7 @@ stdenv.mkDerivation {
   depsBuildBuild = [ buildPackages.stdenv.cc ];
 
   makeFlags = [
-    "ARCH=${hostPlatform.parsed.cpu.name}"
+    "ARCH=${stdenv.hostPlatform.parsed.cpu.name}"
     "VERBOSE=1"
   ] ++ stdenv.lib.optionals (stdenv.buildPlatform != stdenv.hostPlatform) [
     "CROSS=${stdenv.cc.targetPrefix}"