On 5/18/21 1:12 PM, Marco Barisione wrote:
> On 18 May 2021, at 10:59, Tom de Vries <tdevries@suse.de> wrote:
>> Hi,
>>
>> While trying to reproduce a failing test-case from the testsuite on the
>> command line using a gdb command script, I ran into the problem that a command
>> failed which stopped script execution.
>>
>> I could work around this by splitting the script at each error, but I realized
>> it would be nice if I could tell gdb to ignore the error.
>>
>> Inspired by make, I chose the '-' prefix.
> 
> As MI commands are prefixed by “-“, isn’t there a risk of confusion?
> 

Ah, right, I tend to forget about MI, good point.

> There’s also a “-” command (see tui/tui-win.c) which will stop working with
> your patch.

I see, that's:
...
$ gdb -q -batch -ex "help -"
Scroll window backward.
Usage: - [N] [WIN]
Scroll window WIN N lines backwards.  Both WIN and N are optional, N
defaults to 1, and WIN defaults to the currently focused window.
...

FWIW, did not find any documentation for this command.

Anyway, the '-' prefix seems a poor choice.

I've updated the patch to implement the ignore-errors idiom natively (so
it also works without python).

Also, I've managed to fix the hang, by copying some code from
execute_gdb_command.

Thanks,
- Tom