[Ovmsdev] Javascript

[Stephen Casner]

Well, I have tried several stages of rebuilding, but I still get an
immediate crash from duktape.

First I updated sources for ovms and esp-idf (the previous pull was
October 29).  Still crashed.

Then I changed from RELEASE to DEBUG to be like sdkconfig.default.hw31
but that failed to link because I still had bluetooth configured so
there was not enough space in IRAM, so I removed bluetooth and made
clean.  Still crashed.

Then I backed off to straight sdkconfig.default.hw31, though the make
procedure then added some more defaults that should be checked in.
Still crashed.

The most obvious question is whether there is something wrong with my
javascript file so that duktape is legitimately considering it in
error, but the source looks clean:

OVMS# vfs cat /store/scripts/helloworld.js
OvmsPrint("Hello world!\n”);
OVMS#

I don't have any other ideas yet.

                                                        -- Steve

On Sat, 22 Dec 2018, Stephen Casner wrote:

> Michael,
>
> I used the same sequence of commands that you did.  The only
> difference is that I did not capitalize World and I did include an
> exclamation point after it (since I did copy/paste from Mark's
> message).
>
> Maybe it is an insufficient free memory problem.  But I just tried
> again via an ssh console with this starting condition:
>
> Free 8-bit 91352/230700, 32-bit 1236/3144, SPIRAM 4032872/4194252
>
> That should be sufficient.
>
> Attached is a diff of sdkconfig.default.hw31 to my sdkconfig.  The
> only thing I noticed that might be an explanation is the optimization
> level set to RELEASE vs DEBUG.
>
>                                                         -- Steve
>
> On Sat, 22 Dec 2018, Michael Balzer wrote:
>
> > Steve,
> >
> > I just tried this:
> >
> > OVMS# vfs append 'OvmsPrint("Hello World\n");' /store/scripts/helloworld.js
> > OVMS# vfs cat /store/scripts/helloworld.js
> > OvmsPrint("Hello World\n");
> > OVMS# . helloworld.js
> > Hello World
> > OVMS#
> >
> > So no, the blank line isn't necessary.
> >
> > Regards,
> > Michael
> >
> >
> > Am 22.12.18 um 09:14 schrieb Stephen Casner:
> > > Mark,
> > >
> > > There is a blank line at the end of your script that I don't have.
> > > Perhaps that is required for javascript?  I'll try that soon.  On the
> > > other hand, crashing when the input format isn't as desired is not the
> > > best error handling approach.
> > >
> > > I do have some deviations from sdkconfig.default.hw31, but not in the
> > > spec for the duktape library.
> > >
> > >                                                         -- Steve
> > >
> > > On Sat, 22 Dec 2018, Mark Webb-Johnson wrote:
> > >
> > >> Steve,
> > >>
> > >> I get this:
> > >>
> > >> OVMS# vfs cat /sd/helloworld.js
> > >> OvmsPrint("Hello world\n");
> > >>
> > >> OVMS# . /sd/helloworld.js
> > >> Hello world
> > >>
> > >> Maybe your SDKCONFIG different than mine? I am using the sdkconfig.default.hw31.
> > >>
> > >> Regards, Mark.