D'oh. I don't know why I though Joao was on Windows... Thanks for the
correction!
Note that lldb is the clang debugger and it works slightly different
than GDB. But you can do the same things.
On 17.11.2021 15:07, Lucas Cordiviola wrote:
@Christof,
I think Joao is needing the *macOS* pdmax.
@Joao,
Everything that Christof said applies if you follow the macOS part:
https://github.com/pure-data/pure-data/blob/master/INSTALL.txt
you just need to install xcode with this command on a terminal:
xcode-select --install
macOS debugger is included and its called (and invoked with) "lldb".
I used it one or two times only. I'm not a mac user.
--
Mensaje telepatico asistido por maquinas.
On 11/17/2021 10:32 AM, Christof Ressi wrote:
You would have to build the pdmax external from source with debug
symbols to get meaningful information in the debugger. This means you
would need to setup Msys2, as described in the "Windows" section in
https://github.com/pure-data/pure-data/blob/master/INSTALL.txt.
Actually, if the aim is to only get a stacktrace, it is not necessary
to install a graphical frontend for GDB, you can also run GDB from
the command line.
I you never compiled somthing from source it can be a bit
overwhelming at first, but it's a valuable skill to have. There are a
few Windows people on the list who can help you out (including myself).
So I would say it's not trivial, but also not impossible :-)
---
That's what I'm doing to debug subprocesses (I also needed to do this
with [vstplugin~] a few times):
1) run Pd with DSP off and start the subprocess (here: [pd~ start()
2) find the PID of the subprocess, e.g. with "tasklist | grep <name>"
or with ProcessExplorer
3) attach to the subprocess; terminal:
https://stackoverflow.com/questions/14370972/how-to-attach-a-process-in-gdb;
Qt Creator: "Start Debuggin" -> "Attach to Running Application"
4) turn on DSP and wait for the subprocess to crash
If the subprocess crashes immediately even with DSP turned off,
things are a bit harder.
---
If you can build pdmax with Visual Studio (I don't know if this is
supported?) then things are even easier because VS has a very good
built-in graphical debugger that can also attach to running applications.
Christof
On 17.11.2021 14:04, João Pais wrote:
is that something a "normal user" like me (someone that only uses
the surface of the software) can do, or it has to do with C or any
other custom compiled/prepared versions?
On Wed, 17 Nov 2021 at 01:06, Christof Ressi
<[email protected]> wrote:
You can attach GDB to a running or even a not-yet-running
application.
When that application crashes, you get a backtrace. That's how I
found
the crash in the [pd~] subprocess.
Personally, I use Qt Creator because it has a nice graphical
front-end
for GDB where I can easily step through functions while looking
at the
code, watch local variables, etc.
Christof
On 17.11.2021 00:49, Miller Puckette via Pd-list wrote:
> If by any chance you're using pd 0.52 (test version) then I think
> it can crash when used as a subprocess (this should be fixed
for the next
> test release). If you're using Pd 0.51-4 the problem is
something else.
>
> The "broken pipe" message means the subprocess died suddenly
for some reason.
> But I can't think of an easy way to figure out what killed it.
>
> cheers
> Miller
>
> On Sat, Nov 06, 2021 at 08:45:28PM +0100, João Pais wrote:
>> Hello list,
>>
>> I have a max patch with pd inside through the pd~ object. But
I'm getting
>> the "broken pipe" error in some cases in a mac, such as:
>>
>> - in a compiled standalone it usually works
>>
>> - in the original patch it doesn't
>>
>> - both patches were made in the same system, with the latest
pdmax and pd
>> versions were used. I'm not sure anymore which max version or
macos system
>> was used to compile the standalone, if that's important (it
was either max 7
>> or 8).
>>
>> I don't have access to a mac myself, but the system where it
was tested was
>> a 11.6, with Max 8. It seems to me that in some systems it
works, and in
>> other it doesn't - but I don't have enough hard data to prove it.
>>
>> Best,
>>
>> Joao
>>
>>
>>
>>
>> _______________________________________________
>> [email protected] mailing list
>> UNSUBSCRIBE and account-management ->
https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.puredata.info_listinfo_pd-2Dlist&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=sR96adpeL4KB76yEfQG-D8WqWrtlw2sW2qCwz_nEjLiuLt0KgKMIh-Lc-HCrSJcC&s=K9LPmjo4sdbRhF9wuUqbYoL5l1WxeUKav5yEeAse22o&e=
<https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.puredata.info_listinfo_pd-2Dlist&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=sR96adpeL4KB76yEfQG-D8WqWrtlw2sW2qCwz_nEjLiuLt0KgKMIh-Lc-HCrSJcC&s=K9LPmjo4sdbRhF9wuUqbYoL5l1WxeUKav5yEeAse22o&e=>
_______________________________________________
[email protected] mailing list
UNSUBSCRIBE and account-management ->
https://lists.puredata.info/listinfo/pd-list
_______________________________________________
[email protected] mailing list
UNSUBSCRIBE and account-management
->https://lists.puredata.info/listinfo/pd-list
_______________________________________________
[email protected] mailing list
UNSUBSCRIBE and account-management
->https://lists.puredata.info/listinfo/pd-list
_______________________________________________
[email protected] mailing list
UNSUBSCRIBE and account-management ->
https://lists.puredata.info/listinfo/pd-list
