Merge branch 'egil/lcnt' into ccase/r13b04_dev

* egil/lcnt:
  Add test suite for lcnt in tools
  Add lcnt:rt_opt/1 bindings to erts_debug
  Add runtime option to enable/disable lcnt stats
  Add auto width on string output
  Add lcnt documentation
  Add lock profiling tool

OTP-8424  Add lock profiling tool.

          The Lock profiling tool, lcnt, can make use of the internal lock
          statistics when the runtime system is built with this feature
          enabled.

          This provides a mechanism to examine potential lock bottlenecks
          within the runtime itself.

          - Add erts_debug:lock_counters({copy_save, bool()}). This option
          enables or disables statistics saving for destroyed processes and
          ets-tables. Enabling this might consume a lot of memory.

          - Add id-numbering for lock classes which is otherwise undefined.

1 files changed, 9 insertions, 3 deletions

diff --git a/lib/tools/doc/src/ref_man.xml b/lib/tools/doc/src/ref_man.xml
index aea74e3746..d4861af9f3 100644
--- a/lib/tools/doc/src/ref_man.xml
+++ b/lib/tools/doc/src/ref_man.xml
@@ -4,7 +4,7 @@
 <application xmlns:xi="http://www.w3.org/2001/XInclude">
   <header>
     <copyright>
-      <year>1996</year><year>2009</year>
+      <year>1996</year><year>2010</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -13,12 +13,12 @@
       compliance with the License. You should have received a copy of the
       Erlang Public License along with this software. If not, it can be
       retrieved online at http://www.erlang.org/.
-    
+
       Software distributed under the License is distributed on an "AS IS"
       basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
       the License for the specific language governing rights and limitations
       under the License.
-    
+
     </legalnotice>
 
     <title>Tools Reference Manual</title>
@@ -51,9 +51,14 @@
        Erlang programs. Uses trace to file to minimize runtime
        performance impact, and displays time for calling and called 
        functions.</item>
+
       <tag><em>instrument</em></tag>
       <item>Utility functions for obtaining and analysing resource usage
        in an instrumented Erlang runtime system.</item>
+
+      <tag><em>lcnt</em></tag>
+      <item>A lock profiling tool for the Erlang runtime system.</item>
+
       <tag><em>make</em></tag>
       <item>A make utility for Erlang similar to UNIX make.</item>
       <tag><em>tags</em></tag>
@@ -70,6 +75,7 @@
   <xi:include href="erlang_mode.xml"/>
   <xi:include href="fprof.xml"/>
   <xi:include href="instrument.xml"/>
+  <xi:include href="lcnt.xml"/>
   <xi:include href="make.xml"/>
   <xi:include href="tags.xml"/>
   <xi:include href="xref.xml"/>