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Re: mi tty commands


On Sun, Jul 10, 2005 at 11:08:12PM +0200, Mark Kettenis wrote:
>    Date: Wed, 6 Jul 2005 10:54:49 -0400
>    From: Bob Rossi <bob@brasko.net>
> 
>    On Sun, Jul 03, 2005 at 02:43:25PM -0400, Daniel Jacobowitz wrote:
>    > On Sat, Jun 18, 2005 at 08:29:21AM -0400, Bob Rossi wrote:
>    > > Index: gdb/ChangeLog
>    > > +	* fork-child.c (fork-inferior): Use accessor function for
>    > > +	inferior_io_terminal.
>    > > +	* infcmd.c (inferior_io_terminal): Make static.
>    > > +	(set_inferior_io_terminal): New function.
>    > > +	(get_inferior_io_terminal): Ditto.
>    > > +	(tty_command): Use accessor function.
>    > > +	(_initialize_infcmd): Add inferior_tty setshow variable.
>    > > +	(_initialize_infcmd): Remove tty command.
>    > > +	(_initialize_infcmd): Add a tty command that is an alias.
>    > > +	* inferior.h (set_inferior_io_terminal): New prototype.
>    > > +	(get_inferior_io_terminal): Ditto.
>    > > +	(new_tty_prefork): Add const qualifier to parameter.
>    > > +	* inflow.c (inferior_thisrun_terminal): Add const qualifier.
>    > > +	(new_tty_prefork): Add const qualifier to parameter.
>    > > +	* nto-procfs (procfs_create_inferior): Use accessor function.
>    > > +	(procfs_create_inferior): Add const qualifier to locals.
>    > > +	* win32-nat.c (child_create_inferior): Ditto.
>    > > +	* mi/mi-cmd-env.c (mi_cmd_inferior_tty_set): New function.
>    > > +	(mi_cmd_inferior_tty_set): Ditto.
>    > > +	* mi/mi-cmds.c (mi_cmds): Add inferior-tty-set and inferior-tty-show
>    > > +	* mi/mi-cmds.h (mi_cmd_inferior_tty_set): Add prototype.
>    > > +	(mi_cmd_inferior_tty_show): Ditto.
>    > > 
>    > > Index: gdb/doc/ChangeLog
>    > > +	* gdb.texinfo (GDB/MI Miscellaneous Commands): Add -inferior-tty-set
>    > > +	and -inferior-tty-show.
>    > > +	(Input/Output): Document "set/show inferior-tty" and tty alias.
>    > > 
>    > > Index: gdb/testsuite/ChangeLog
>    > > +	* gdb.mi/mi-basics.exp (test_setshow_inferior_tty): Test MI tty
>    > > +	command.
>    > 
>    > This is almost completely OK now!  Two minor fixes:
> 
>    Thanks very much! Committed. Now the interesting patches are coming :)
> 
> Bob, please make sure there are no regressions from your patch before
> you check things in.  I now get:
> 
> FAIL: gdb.base/default.exp: tty
> FAIL: gdb.base/help.exp: help tty
> 
> because the output of the tty command changed.  In the past we had:
> 
> (gdb) tty
> Argument required (terminal name for running target process).
> 
> whereas now we have
> 
> (gdb) tty
> Argument required (filename to set it to.).
> 
> I don't really consider this an improvement...

Does anyone know why the "tty" command gives the "default" message when
I have,

   /* add the filename of the terminal connected to inferior I/O */
   add_setshow_filename_cmd ("inferior-tty", class_run,
                             &inferior_io_terminal, _("\
   Set terminal for future runs of program being debugged."), _("\
   Show terminal for future runs of program being debugged."), _("\
   Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist);

   add_com_alias ("tty", "set inferior-tty", class_alias, 0);

I would expect the alias to take on the usage note from the command it
points to. Either that, or allow me to explicitly give it a usage note.
Any suggestions?

Thanks,
Bob Rossi


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