From 474ea2b7eef0beb5b4c01eb1943091926a6ec910 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Fri, 12 Sep 2008 20:00:00 +0000
Subject: [PATCH] Add Exmap, a Linux-specific tool to examine process memory
 usage.

svn path=/nixpkgs/trunk/; revision=12857
---
 pkgs/os-specific/linux/exmap/default.nix | 56 ++++++++++++++++++++++++
 pkgs/top-level/all-packages.nix          |  5 +++
 2 files changed, 61 insertions(+)
 create mode 100644 pkgs/os-specific/linux/exmap/default.nix

diff --git a/pkgs/os-specific/linux/exmap/default.nix b/pkgs/os-specific/linux/exmap/default.nix
new file mode 100644
index 000000000000..da5e00e33772
--- /dev/null
+++ b/pkgs/os-specific/linux/exmap/default.nix
@@ -0,0 +1,56 @@
+{ fetchurl, stdenv, kernel, pkgconfig, gtkmm, boost, pcre }:
+
+stdenv.mkDerivation rec {
+  name = "exmap-0.10";
+
+  src = fetchurl {
+    url = "http://www.berthels.co.uk/exmap/download/${name}.tgz";
+    sha256 = "0z00dhl6bdmaz7p9wlvnj0izf0zlrlkv34fz449kxyislpzzxmgn";
+  };
+
+  patchPhase = ''
+    substituteInPlace "kernel/Makefile" \
+      --replace '/lib/modules/$(shell uname -r)/build' \
+                ${kernel}/lib/modules/*/build
+
+    # The `proc_root' variable (the root of `/proc') is no longer exported
+    # since 2.6.26.  Fortunately, one can pass `NULL' instead of `&proc_root'.
+    # See http://lkml.org/lkml/2008/3/30/57 .
+    substituteInPlace "kernel/exmap.c" \
+      --replace "&proc_root" "NULL"
+
+    substituteInPlace "src/Makefile" --replace "-Werror" ""
+  '';
+
+  buildInputs = [ kernel pkgconfig gtkmm boost pcre ];
+
+  buildPhase = "make build";
+
+  # XXX: The tests can only be run one the `exmap' module is loaded.
+  doCheck = false;
+  #checkPhase = "make test"
+
+  installPhase = ''
+    ensureDir "$out/share/${name}"
+    cp kernel/*.ko "$out/share/${name}"
+
+    ensureDir "$out/bin"
+    cp src/{gexmap,exmtool,elftool,showproc} "$out/bin"
+  '';
+
+  meta = {
+    description = "Exmap, a tool showing the physical memory usage of processes";
+
+    longDescription = ''
+      Exmap is a utility which takes a snapshot of how the physical
+      memory and swap space are currently used by all the processes on
+      your system.  It examines which page of memory are shared between
+      which processes, so that it can share the cost of the pages
+      fairly when calculating usage totals.
+    '';
+
+    homepage = http://www.berthels.co.uk/exmap/;
+
+    license = "GPLv2+";
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1b427499dadc..bb2885101008 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5229,6 +5229,11 @@ let
       inherit fetchurl stdenv kernel;
     };
 
+    exmap = import ../os-specific/linux/exmap {
+      inherit fetchurl stdenv kernel boost pcre pkgconfig;
+      inherit (gtkLibs) gtkmm;
+    };
+
     iwlwifi = import ../os-specific/linux/iwlwifi {
       inherit fetchurl stdenv kernel;
     };