[RFC] -mi-level command

[Andrew Cagney]

> Bonjour
> 
> 	Maybe there is a better way to do this, most clients of GDB/MI
> need a way to know the level to adjust the parsing or go around bugs in
> previous(or current version).
> 
> 	One problem with the code below is that mi_version() is returning ..."3"

Should it also include the gdb version string?
Should it indicate the range of supported MI versions?
(what ever is useful).

'gdb -i=mi2' should get you back to something that was released in 5.3. 
  "mi3" won't become official until GDB 6 is released, however, for it 
it return "2" would be wrong.

It will need documentation and a testcase.

Andrew

There is a problem here though

> I'll be happy to provide docs etc .. after.
> 8<---8<---------------------------------------
> Index: mi-cmds.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/mi/mi-cmds.c,v
> retrieving revision 1.12
> diff -u -r1.12 mi-cmds.c
> --- mi-cmds.c	4 May 2003 03:50:13 -0000	1.12
> +++ mi-cmds.c	7 May 2003 18:24:34 -0000
> @@ -96,6 +96,7 @@
>    {"kod-list", 0, 0},
>    {"kod-list-object-types", 0, 0},
>    {"kod-show", 0, 0},
> +  {"mi-level", 0, 0, mi_cmd_mi_level},
>    {"overlay-auto", 0, 0},
>    {"overlay-list-mapping-state", 0, 0},
>    {"overlay-list-overlays", 0, 0},
> Index: mi-cmds.h
> ===================================================================
> RCS file: /cvs/src/src/gdb/mi/mi-cmds.h,v
> retrieving revision 1.9
> diff -u -r1.9 mi-cmds.h
> --- mi-cmds.h	4 May 2003 03:50:13 -0000	1.9
> +++ mi-cmds.h	7 May 2003 18:24:34 -0000
> @@ -81,6 +81,7 @@
>  extern mi_cmd_args_ftype mi_cmd_exec_until;
>  extern mi_cmd_args_ftype mi_cmd_exec_interrupt;
>  extern mi_cmd_argv_ftype mi_cmd_file_list_exec_source_file;
> +extern mi_cmd_argv_ftype mi_cmd_mi_level;
>  extern mi_cmd_argv_ftype mi_cmd_gdb_exit;
>  extern mi_cmd_argv_ftype mi_cmd_interpreter_exec;
>  extern mi_cmd_argv_ftype mi_cmd_stack_info_depth;
> Index: mi-main.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/mi/mi-main.c,v
> retrieving revision 1.43
> diff -u -r1.43 mi-main.c
> --- mi-main.c	5 May 2003 17:56:57 -0000	1.43
> +++ mi-main.c	7 May 2003 18:24:34 -0000
> @@ -109,6 +109,13 @@
>     formalized. */
>  
>  enum mi_cmd_result
> +mi_cmd_mi_level (char *command, char **argv, int argc)
> +{
> +   ui_out_field_int (uiout, "level", mi_version(uiout));

Indentation, space before the lparen.

> +   return MI_CMD_DONE;
> +}
> +
> +enum mi_cmd_result
>  mi_cmd_gdb_exit (char *command, char **argv, int argc)
>  {
>    /* We have to print everything right here because we never return */
> 
> 


Andrew