* Added add_debugger_command_etc() which is similar to

add_debugger_command(), but additionally takes parameters "usage"
  and "flags".
* Added add_debugger_command_alias() which creates another name for an
  existing command.
* Added print_debugger_command_usage() to print a command's usage.
* invoke_debugger_command() intercepts invocations with "--help" and
  prints the command's usage text, if it is known. If unknown, the
  command will be called normally.
* Made use of the new functions in debug.cpp.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23573 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/debug.h

@@ -70,6 +70,13 @@ extern bool		evaluate_debug_expression(const char* expression,
 					uint64* result, bool silent);
 extern int		evaluate_debug_command(const char* command);
 
+extern status_t	add_debugger_command_etc(const char* name,
+					debugger_command_hook func, const char* description,
+					const char* usage, uint32 flags);
+extern status_t	add_debugger_command_alias(const char* newName,
+					const char* oldName, const char* description);
+extern bool		print_debugger_command_usage(const char* command);
+
 extern void		_user_debug_output(const char *userString);
 
 #ifdef __cplusplus