Rewrite modules-related packaging

* Replace module-init-tools by kmod
* Drop MODULE_DIR patch

We'll maintain /lib/modules/modversion symlink instead. This way both
module-init-tools and libkmod will work without patches.

svn path=/nixpkgs/branches/kmod-MODULE_DIR/; revision=33428

pkgs/applications/virtualization/virtualbox/default.nix

@@ -82,8 +82,7 @@ stdenv.mkDerivation {
     
     # Install kernel module
     cd src
-    kernelVersion=$(cd ${kernel}/lib/modules; ls)
-    export MODULE_DIR=$out/lib/modules/$kernelVersion/misc
+    export MODULE_DIR=$out/lib/modules/${kernel.modDirVersion}/misc
     
     # Remove root ownership stuff, since this does not work in a chroot environment
     for i in `find . -name Makefile`; do

pkgs/applications/virtualization/virtualbox/guest-additions/default.nix

@@ -114,12 +114,11 @@ stdenv.mkDerivation {
     for i in *
     do
         cd $i
-	kernelVersion=$(cd ${kernel}/lib/modules; ls)
-	export MODULE_DIR=$out/lib/modules/$kernelVersion/misc
-	find . -type f | xargs sed -i -e "s|-o root||g" \
-	                              -e "s|-g root||g"
-	make install
-	cd ..
+        export MODULE_DIR=$out/lib/modules/${kernel.modDirVersion}/misc
+        find . -type f | xargs sed -i -e "s|-o root||g" \
+                                      -e "s|-g root||g"
+        make install
+        cd ..
     done    
   '';
 

pkgs/build-support/kernel/modules-closure.nix

@@ -1,15 +1,15 @@
-# Given a kernel build (with modules in $kernel/lib/modules/VERSION),
+# Given a modules tree (with modules in $modulesTree/lib/modules/VERSION),
 # produce a module tree in $out/lib/modules/VERSION that contains only
 # the modules identified by `rootModules', plus their dependencies.
 # Also generate an appropriate modules.dep.
 
-{ stdenv, kernel, nukeReferences, rootModules
-, module_init_tools, allowMissing ? false }:
+{ stdenv, modulesTree, nukeReferences, rootModules
+, kmod, allowMissing ? false }:
 
 stdenv.mkDerivation {
-  name = kernel.name + "-shrunk";
+  name = modulesTree.name + "-shrunk";
   builder = ./modules-closure.sh;
   buildInputs = [nukeReferences];
-  inherit kernel rootModules module_init_tools allowMissing;
+  inherit modulesTree rootModules kmod allowMissing;
   allowedReferences = ["out"];
 }

pkgs/build-support/kernel/modules-closure.sh

@@ -2,19 +2,17 @@ source $stdenv/setup
 
 set -o pipefail
 
-PATH=$module_init_tools/sbin:$PATH
-
-version=$(cd $kernel/lib/modules && ls -d *)
+PATH=$kmod/sbin:$PATH
+version=$(cd $modulesTree/lib/modules && ls -d *)
 
 echo "kernel version is $version"
 
-export MODULE_DIR=$(readlink -f $kernel/lib/modules/)
-
+mkdir empty
 # Determine the dependencies of each root module.
 closure=
 for module in $rootModules; do
     echo "root module: $module"
-    deps=$(modprobe --config /dev/null --set-version "$version" --show-depends "$module" \
+    deps=$(modprobe -S "$version" -d "$modulesTree" --show-depends "$module" \
         | sed 's/^insmod //') \
         || if test -z "$allowMissing"; then exit 1; fi
     #for i in $deps; do echo $i; done
@@ -41,4 +39,4 @@ for module in $closure; do
     echo $target >> $out/insmod-list
 done
 
-MODULE_DIR=$out/lib/modules/ depmod -a $version
+depmod -b $out -a $version

pkgs/os-specific/linux/kernel/builder.sh

@@ -70,14 +70,8 @@ installPhase() {
     cp vmlinux $out
 
     if grep -q "CONFIG_MODULES=y" .config; then
-        # Install the modules in $out/lib/modules with matching paths
-        # in modules.dep (i.e., refererring to $out/lib/modules, not
-        # /lib/modules).  The depmod_opts= is to prevent the kernel
-        # from passing `-b PATH' to depmod.
-        export MODULE_DIR=$out/lib/modules/
-        substituteInPlace Makefile --replace '-b $(INSTALL_MOD_PATH)' ''
         make modules_install \
-            DEPMOD=$module_init_tools/sbin/depmod depmod_opts= \
+            DEPMOD=$module_init_tools/sbin/depmod \
             $makeFlags "${makeFlagsArray[@]}" \
             $installFlags "${installFlagsArray[@]}"
 

pkgs/os-specific/linux/kernel/linux-3.0.nix

@@ -229,10 +229,6 @@ import ./generic.nix (
   rec {
     version = "3.0.24";
 
-    preConfigure = ''
-      substituteInPlace scripts/depmod.sh --replace '-b "$INSTALL_MOD_PATH"' ""
-    '';
-
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.bz2";
       sha256 = "0j783ivlgg66jvasxaapimyzaqyn61jlz4abhkynckr4h5hrpvw4";

pkgs/os-specific/linux/kernel/linux-3.1.nix

@@ -229,10 +229,6 @@ import ./generic.nix (
   rec {
     version = "3.1.10";
 
-    preConfigure = ''
-      substituteInPlace scripts/depmod.sh --replace '-b "$INSTALL_MOD_PATH"' ""
-    '';
-
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.bz2";
       sha256 = "1vcpbh7wnc9smw2l5ci27a5p0rgmc1a5dc6a1aljm6f6wcfic8lz";

pkgs/os-specific/linux/kernel/linux-3.2.nix

@@ -231,10 +231,6 @@ import ./generic.nix (
 
     modDirVersion = version;
 
-    preConfigure = ''
-      substituteInPlace scripts/depmod.sh --replace '-b "$INSTALL_MOD_PATH"' ""
-    '';
-
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v3.0/${if testing then "testing/" else ""}linux-${version}.tar.bz2";
       sha256 = "1hacfmf08ydzf4xlg6wkkckl5icj7w9h3nh17myz1s67bp7q61qs";

pkgs/os-specific/linux/kernel/linux-3.3.nix

@@ -231,10 +231,6 @@ import ./generic.nix (
 
     modDirVersion = "3.3.0";
 
-    preConfigure = ''
-      substituteInPlace scripts/depmod.sh --replace '-b "$INSTALL_MOD_PATH"' ""
-    '';
-
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v3.0/${if testing then "testing/" else ""}linux-${version}.tar.bz2";
       sha256 = "0czk8bj46r3r95iz6gi7xkavhjx847s5p9248vabi0c1wjs6kmlg";

pkgs/os-specific/linux/module-init-tools/aggregator.nix → pkgs/os-specific/linux/kmod/aggregator.nix

@@ -1,4 +1,4 @@
-{stdenv, module_init_tools, modules, buildEnv}:
+{stdenv, kmod, modules, buildEnv}:
 
 buildEnv {
   name = "kernel-modules";
@@ -21,7 +21,8 @@ buildEnv {
       # kernel version number, otherwise depmod will use `uname -r'.
       if test -w $out/lib/modules/$kernelVersion; then
           rm -f $out/lib/modules/$kernelVersion/modules.*
-          MODULE_DIR=$out/lib/modules/ ${module_init_tools}/sbin/depmod -a $kernelVersion
+          echo ${kmod}/sbin/depmod -b $out -a $kernelVersion
+          ${kmod}/sbin/depmod -b $out -a $kernelVersion
       fi
     '';
 }

pkgs/os-specific/linux/kmod/default.nix

@@ -8,10 +8,18 @@ stdenv.mkDerivation {
     sha256 = "1xvsy2zcfdimj4j5b5yyxaqx2byabmwq8qlzjm0hqzpyxxgfw1lq";
   };
 
-  buildInputs = [ pkgconfig xz zlib ];
+  buildInputs = [ xz zlib ];
+  buildNativeInputs = [ pkgconfig ];
 
   configureFlags = [ "--with-xz" "--with-zlib" ];
 
+  postInstall = ''
+    mkdir -p $out/sbin
+    for i in depmod insmod lsmod modinfo modprobe rmmod; do
+      ln -sv ../bin/kmod $out/sbin/$i
+    done
+    '';
+
   meta = {
     homepage = http://www.kernel.org/pub/linux/utils/kernel/kmod/;
     description = "Tools for loading and managing Linux kernel modules";