perf_counter tools: add help texts

Add Documentation/perf-stat.txt and Documentation/perf-top.txt.

The template that was used for it: Documentation/git-add.txt from Git.

Fix up small bugs to make these help texts show up both in the 'perf'
common-command summary output screen, and on the individual help screens.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 143 insertions, 6 deletions

diff --git a/Documentation/perf_counter/Documentation/perf-stat.txt b/Documentation/perf_counter/Documentation/perf-stat.txt
new file mode 100644
index 000000000000..7fcab271e570
--- /dev/null
+++ b/Documentation/perf_counter/Documentation/perf-stat.txt
@@ -0,0 +1,76 @@
+perf-stat(1)
+==========
+
+NAME
+----
+perf-stat - Run a command and gather performance counter statistics
+
+SYNOPSIS
+--------
+[verse]
+'perf stat' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
+
+DESCRIPTION
+-----------
+This command runs a command and gathers performance counter statistics
+from it.
+
+
+OPTIONS
+-------
+<command>...::
+        Any command you can specify in a shell.
+
+-e::
+--event=::
+                             0:0: cpu-cycles          
+                             0:0: cycles              
+                             0:1: instructions        
+                             0:2: cache-references    
+                             0:3: cache-misses        
+                             0:4: branch-instructions 
+                             0:4: branches            
+                             0:5: branch-misses       
+                             0:6: bus-cycles          
+                             1:0: cpu-clock           
+                             1:1: task-clock          
+                             1:2: page-faults         
+                             1:2: faults              
+                             1:5: minor-faults        
+                             1:6: major-faults        
+                             1:3: context-switches    
+                             1:3: cs                  
+                             1:4: cpu-migrations      
+                             1:4: migrations          
+                           rNNN: raw PMU events (eventsel+umask)
+
+-a::
+        system-wide collection
+
+-l::
+        scale counter values
+
+Configuration
+-------------
+
+EXAMPLES
+--------
+
+$ perf stat sleep 1
+
+ Performance counter stats for 'sleep':
+
+       0.678356  task clock ticks     (msecs)
+              7  context switches     (events)
+              4  CPU migrations       (events)
+            232  pagefaults           (events)
+        1810403  CPU cycles           (events)
+         946759  instructions         (events)
+          18952  cache references     (events)
+           4885  cache misses         (events)
+
+ Wall-clock time elapsed:  1001.252894 msecs
+
+SEE ALSO
+--------
+linkperf:git-tops[1]
diff --git a/Documentation/perf_counter/Documentation/perf-top.txt b/Documentation/perf_counter/Documentation/perf-top.txt
new file mode 100644
index 000000000000..057333b72534
--- /dev/null
+++ b/Documentation/perf_counter/Documentation/perf-top.txt
@@ -0,0 +1,61 @@
+perf-top(1)
+==========
+
+NAME
+----
+perf-top - Run a command and profile it
+
+SYNOPSIS
+--------
+[verse]
+'perf top' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
+
+DESCRIPTION
+-----------
+This command runs a command and gathers a performance counter profile
+from it.
+
+
+OPTIONS
+-------
+<command>...::
+        Any command you can specify in a shell.
+
+-e::
+--event=::
+                             0:0: cpu-cycles          
+                             0:0: cycles              
+                             0:1: instructions        
+                             0:2: cache-references    
+                             0:3: cache-misses        
+                             0:4: branch-instructions 
+                             0:4: branches            
+                             0:5: branch-misses       
+                             0:6: bus-cycles          
+                             1:0: cpu-clock           
+                             1:1: task-clock          
+                             1:2: page-faults         
+                             1:2: faults              
+                             1:5: minor-faults        
+                             1:6: major-faults        
+                             1:3: context-switches    
+                             1:3: cs                  
+                             1:4: cpu-migrations      
+                             1:4: migrations          
+                           rNNN: raw PMU events (eventsel+umask)
+
+-a::
+        system-wide collection
+
+-l::
+        scale counter values
+
+Configuration
+-------------
+
+EXAMPLES
+--------
+
+SEE ALSO
+--------
+linkperf:git-stat[1]
diff --git a/Documentation/perf_counter/builtin.h b/Documentation/perf_counter/builtin.h
index a3bb6cd6bed3..605323c691f1 100644
--- a/Documentation/perf_counter/builtin.h
+++ b/Documentation/perf_counter/builtin.h
@@ -14,6 +14,6 @@ extern void prune_packed_objects(int);
 extern int read_line_with_nul(char *buf, int size, FILE *file);
 extern int check_pager_config(const char *cmd);
 
-extern int cmd_top(int argc, char **argv, const char *prefix);
-extern int cmd_stat(int argc, char **argv, const char *prefix);
+extern int cmd_top(int argc, const char **argv, const char *prefix);
+extern int cmd_stat(int argc, const char **argv, const char *prefix);
 #endif
diff --git a/Documentation/perf_counter/generate-cmdlist.sh b/Documentation/perf_counter/generate-cmdlist.sh
index 75c68d948fd3..f06f6fd148f8 100755
--- a/Documentation/perf_counter/generate-cmdlist.sh
+++ b/Documentation/perf_counter/generate-cmdlist.sh
@@ -9,16 +9,16 @@ struct cmdname_help
 
 static struct cmdname_help common_cmds[] = {"
 
-sed -n -e 's/^git-\([^  ]*\)[   ].* common.*/\1/p' command-list.txt |
+sed -n -e 's/^perf-\([^         ]*\)[   ].* common.*/\1/p' command-list.txt |
 sort |
 while read cmd
 do
      sed -n '
-     /^NAME/,/git-'"$cmd"'/H
+     /^NAME/,/perf-'"$cmd"'/H
      ${
             x
-            s/.*git-'"$cmd"' - \(.*\)/  {"'"$cmd"'", "\1"},/
+            s/.*perf-'"$cmd"' - \(.*\)/  {"'"$cmd"'", "\1"},/
             p
-     }' "Documentation/git-$cmd.txt"
+     }' "Documentation/perf-$cmd.txt"
 done
 echo "};"