From Steven Johnson <sbjohnson@ozemail.com.au>:
This set of changes add "hookpost-" as an expansion on the original
hooking of commands to GDB. A Hook may now be run "AFTER" execution of
a command as well as before.
* command.h (struct cmd_list_element): Changed elements hook and hookee
to hook_pre and hookee_pre respectively. Added hook_post and hookee_post
for the post hook command operation. Added hook_in so that an executing
hook can be flagged to prevent recursion.
* command.c (add_cmd): Changed initilization of cmd_list_element to
reflect above changes.
(delete_cmd): Remove both pre and post hooks.
(help_cmd): Notify that the command has pre and/or post hooks.
* infrun.c (normal_stop): Change references to hook_pre from hook.
* top.c (execute_command): Run both pre and post hooks.
(define_command): Allow definition of both pre and post hooks.
The definition of pre-hooks is done as before, with the "hook-"
prefix for backward compatibility.
From David Whedon <dwhedon@gordian.com>
* top.c (execute_command): Checks all commands beore executing
to see if the user needs to be warned that the command is
deprecated, warns user if appropriate.
(add_info), (add_info_alias), (add_com) , (add_com_alias): Changed
return values from void to struct cmd_list_element *.
* command.c (lookup_cmd_1): Check aliases before following link
in case user needs to be warned about a deprecated alias.
(deprecate_cmd): new exported function for command deprecation,
sets flags and posibly a replacement string.
(deprecated_cmd_warning): New exported funciton to warn user about
a deprecated command.
(lookup_cmd_composition): New exported function that determines
alias, prefix_command, and cmd based on a string. This is useful
is we want to full name of a command.
* command.h : Added prototypes for deprecate_cmd,
deprecated_warn_user and lookup_cmd_composition, added flags to
the cmd_list_element structure, changed return values for
add_com_* and add_info_* from void to cmd_list_element.
* maint.c : (maintenance_deprecate): New function to deprecate a
command. This exists only so that the testsuite can deprecate
commands at runtime and check the warning behavior.
(maintenance_undeprecate) : New function, drops deprecated flags.
(maintenance_do_deprecate): Actually does the (un)deprecation.
(initialize_maint_cmds): Added the above new deprecate commands.
