[Vm-dev] How to debug vm without heartbeat interrupting

[Javier Pimás]

Cool, thanks for the answer. I had tried with handle, but with the wrong
signal, SIGTRAP, and heartbeats kept popping. I'll check disabling the
others and also with the supressHeartbeatFlag.

Cheers,
Javier.

On Wed, Feb 15, 2012 at 3:17 PM, Eliot Miranda <eliot.miranda at gmail.com>wrote:

>
> (oops, let me reply again; there are *three* ways :) )
>
> On Wed, Feb 15, 2012 at 4:40 AM, Javier Pimás <elpochodelagente at gmail.com>wrote:
>
>>
>> I want to debug asm instruction per instruction with gdb, but the
>> heartbeat keeps interrupting. Is there a way to disable it or make gdb
>> ignore it in some way?
>
>
> Yes, at three levels.  First, signals, via
>
> handle SIGUSR1 nostop noprint noignore
> handle SIGUSR2 nostop noprint noignore
> handle SIGALRM nostop noprint noignore
> handle SIGPOLL nostop noprint noignore
> handle SIGPIPE nostop noprint noignore
>
> etc.  This can and should be put in ~/.gdbinit (find mine attached; note
> its called gdbinit only because I can't attach .gdbinit; you need to rename
> it when you install it; pbreg prints my Bochs instance in the JIT
> simulator; feel free to delete that :) )
>
>
> Second, to avoid the effect that the heartbeat has on control flow (e.g.
> causing a process switch) you can set suppressHeartbeatFlag to 1, while
> running via
>
> (gdb) set var suppressHeartbeatFlag = 1
>
> or from start-up via the -noheartbeat flag, e.g.
>
> (gdb) run -noheartbeat myimage.image
>
> HTH
> Eliot
>
>
>> Cheers,
>> Javier
>>
>> --
>> Lic. Javier Pimás
>> Ciudad de Buenos Aires
>>
>
>


-- 
Lic. Javier Pimás
Ciudad de Buenos Aires
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