How to make gdb not ask me "y or n"?

Question

When I use GDB command add-symbol-file to load the symbol, GDB always asks me 'y or n', like this:

gdb> add-symbol-file mydrv.ko 0xa0070000
add symbol table from file "mydrv.ko" at
        .text_addr = 0xa0070000
(y or n)

How to make it not ask and execute quietly?

Try `set confirm off`. – Mark Plotnick Aug 21 '14 at 11:43 — Mark Plotnick, Aug 21 '14 at 11:43
@MarkPlotnick, Thanks very much. It works! – xmllmx Aug 21 '14 at 11:47 — xmllmx, Aug 21 '14 at 11:47

Mark Plotnick · Accepted Answer · 2018-02-14T17:47:42.277

gdb will ask you to confirm certain commands, if the value of the confirm setting is on. From Optional Warnings and Messages:

set confirm off
Disables confirmation requests. Note that running GDB with the --batch option (see -batch) also automatically disables confirmation requests.

set confirm on
Enables confirmation requests (the default).

show confirm
Displays state of confirmation requests.

That's a single global setting for confirm. In case you want to disable confirmation just for the add-symbol-file command, you can define two hooks, which will run before and after the command:

(gdb) define hook-add-symbol-file
set confirm off
end
(gdb) define hookpost-add-symbol-file
set confirm on
end

If you want to disable confirmation just for a single invocation of a command, precede it with the server keyword, which is part of gdb's annotation system.

How to make gdb not ask me "y or n"?

1 Answers1