DB_COMMAND, DB_SHOW_COMMAND, DB_SHOW_ALL_COMMAND — Extends the ddb command set

       This manual page was written by Guillaume Ballet <gballet@gmail.com>.

Debian                                           August 27, 2008                                   DB_COMMAND(9)

       The  DB_COMMAND()  macro adds command_name to the list of top-level commands.  Invoking command_name from
       ddb will call command_function.

       The DB_SHOW_COMMAND() and DB_SHOW_ALL_COMMAND() are roughly  equivalent  to  DB_COMMAND()  but  in  these
       cases, command_name is a sub-command of the ddb show command and showall command, respectively.

       The  general command syntax: command[/modifier] address[,count], translates into the following parameters
       for command_function:

             addr          The address passed to the command as an argument.

             have_addr     A boolean value that is true if the addr field is valid.

             count         The number of quad words starting at offset addr that the command must process.

             modif         A pointer to the string of modifiers.  That is, a series of symbols used to pass some
                           options to the command.  For example, the  examine  command  will  display  words  in
                           decimal form if it is passed the modifier "d".

       In your module, the command is declared as:

       DB_COMMAND(mycmd, my_cmd_func)
       {
               if (have_addr)
                       db_printf("Calling my command with address %p\n", addr);
       }

       Then, when in ddb:

       db>mycmd0x1000Callingmycommandwithaddress0x1000db>

       DB_COMMAND, DB_SHOW_COMMAND, DB_SHOW_ALL_COMMAND — Extends the ddb command set

ddb(4)

#include<ddb/ddb.h>DB_COMMAND(command_name, command_function);

       DB_SHOW_COMMAND(command_name, command_function);

       DB_SHOW_ALL_COMMAND(command_name, command_function);