Yes, it looks like that library is ok.
I don't know how up-to-date these paths/filenames are but have you tried
looking in the various places described here:
https://github.com/machinekit/machinekit/blob/master/scripts/linuxcnc.in#L210
Machinekit terminated with an error. For simple cases more information
can be found in the following files:
$HOME/linuxcnc_debug.txt
$HOME/linuxcnc_print.txt
For other cases get more meaningfull information by restarting after
export DEBUG=5
and look at the output of:
/var/log/linuxcnc.log
dmesg
On Friday, May 12, 2023 at 12:29:24 PM UTC-6 fogl wrote:
> This is what i get:
>
> $ ldd /usr/lib/linuxcnc/rt-preempt/hal_pru_generic.so
> linux-vdso.so.1 (0xbeb23000)
> libgcc_s.so.1 => /lib/arm-linux-gnueabihf/libgcc_s.so.1 (0xb6f2b000)
> libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6e3d000)
> /lib/ld-linux-armhf.so.3 (0xb6f71000)
>
> But i am not sure what this means - that the library is ok?
>
> Regards
> Klemen
>
> On Fri, 12 May 2023 at 20:20, [email protected] <[email protected]> wrote:
>
>> Try running this command to see if a dependent library is missing:
>>
>> $ ldd /usr/lib/linuxcnc/rt-preempt/hal_pru_generic.so
>>
>> On Friday, May 12, 2023 at 12:06:20 PM UTC-6 fogl wrote:
>>
>>> Thank you for your reply,
>>>
>>> I tried both options, but with no luck:
>>> 1. loadrt prucode=/usr/lib/linuxcnc/rt-preempt/hal_pru_generic pru=0
>>> halname=hpg
>>>
>>> returns
>>>
>>> msgd:0 stopped
>>> rtapi:0 stopped
>>> rtapi_msgd command: /usr/libexec/linuxcnc/rtapi_msgd --instance=0
>>> --rtmsglevel=1 --usrmsglevel=1 --debug=1 --halsize=524288
>>> rtapi_app command: /usr/libexec/linuxcnc/rtapi_app_rt-preempt
>>> --instance=0 --debug=1
>>> stat: No such file or directory
>>> prutest.hal:6: insmod failed, returned -1:
>>> do_load_cmd: dlopen:
>>> prucode=/usr/lib/linuxcnc/rt-preempt/hal_pru_generic.so: cannot open shared
>>> object file: No such file or directory
>>> rpath=/usr/lib/linuxcnc/rt-preempt
>>>
>>> 2. loadrt prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.bin pru=0
>>> halname=hpg
>>>
>>> returns
>>>
>>> msgd:0 stopped
>>> rtapi:0 stopped
>>> rtapi_msgd command: /usr/libexec/linuxcnc/rtapi_msgd --instance=0
>>> --rtmsglevel=1 --usrmsglevel=1 --debug=1 --halsize=524288
>>> rtapi_app command: /usr/libexec/linuxcnc/rtapi_app_rt-preempt
>>> --instance=0 --debug=1
>>> stat: No such file or directory
>>> prutest.hal:6: insmod failed, returned -1:
>>> do_load_cmd: dlopen: prucode=/usr/lib/linuxcnc/rt-preempt/
>>> pru_generic.bin.so: cannot open shared object file: No such file or
>>> directory
>>>
>>> Regards
>>> Klemen
>>>
>>>
>>>
>>>
>>> On Fri, 12 May 2023 at 17:25, Charles Steinkuehler <
>>> [email protected]> wrote:
>>>
>>>> Your output indicates dlopen is looking for "pru_generic.so" but your
>>>> filesystem only has "hal_pru_generic.so".
>>>>
>>>> You need to fix the script(s) trying to load the PRU HAL module or make
>>>> a symlink or something so the file dlopen is looking for actually
>>>> exists.
>>>>
>>>> On 5/12/2023 9:38 AM, fogl wrote:
>>>> > Hello everybody,
>>>> >
>>>> > I am stuck with machinekit and pru. I am running a single line .hal
>>>> file:
>>>> > loadrt prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic pru=0
>>>> halname=hpg
>>>> >
>>>> > This returns:
>>>> > msgd:0 stopped
>>>> > rtapi:0 stopped
>>>> > rtapi_msgd command: /usr/libexec/linuxcnc/rtapi_msgd --instance=0
>>>> > --rtmsglevel=1 --usrmsglevel=1 --debug=1 --halsize=524288
>>>> > rtapi_app command: /usr/libexec/linuxcnc/rtapi_app_rt-preempt
>>>> --instance=0
>>>> > --debug=1
>>>> > stat: No such file or directory
>>>> > prutest.hal:6: insmod failed, returned -1:
>>>> > do_load_cmd: dlopen:
>>>> prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.so:
>>>> > cannot open shared object file: No such file or directory
>>>> > rpath=/usr/lib/linuxcnc/rt-preempt
>>>> >
>>>> > Even though the file is actually there:
>>>> > $ ls /usr/lib/linuxcnc/rt-preempt | grep pru
>>>> > hal_pru.so
>>>> > hal_pru_generic.so
>>>> > hal_prudebug.so
>>>> > pru_decamux.bin
>>>> > pru_decamux.dbg
>>>> > pru_generic.bin
>>>> > pru_generic.dbg
>>>> >
>>>> > This is my linuxcnc.log (export DEBUG=5):
>>>> > May 12 14:19:23 beaglebone rtapi:0: do_load_cmd: dlopen:
>>>> > prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.so: cannot open
>>>> shared
>>>> > object file:$
>>>> > May 12 14:19:23 beaglebone rtapi:0: rpath=/usr/lib/linuxcnc/rt-preempt
>>>> > May 12 14:19:23 beaglebone rtapi:0: 1:rtapi_app:4613:user do_load_cmd:
>>>> > dlopen: prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.so: cannot
>>>> op$
>>>> > May 12 14:19:23 beaglebone rtapi:0: 1:rtapi_app:4613:user
>>>> > rpath=/usr/lib/linuxcnc/rt-preempt
>>>> > May 12 14:19:24 beaglebone msgd:0: rtapi_app exit detected - scheduled
>>>> > shutdown
>>>> > May 12 14:19:26 beaglebone msgd:0: msgd shutting down
>>>> > May 12 14:28:07 beaglebone rtapi:0: do_load_cmd: dlopen:
>>>> > prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.so: cannot open
>>>> shared
>>>> > object file:$
>>>> > May 12 14:28:07 beaglebone rtapi:0: rpath=/usr/lib/linuxcnc/rt-preempt
>>>> > May 12 14:28:07 beaglebone rtapi:0: 1:rtapi_app:4766:user do_load_cmd:
>>>> > dlopen: prucode=/usr/lib/linuxcnc/rt-preempt/pru_generic.so: cannot
>>>> op$
>>>> > May 12 14:28:07 beaglebone rtapi:0: 1:rtapi_app:4766:user
>>>> > rpath=/usr/lib/linuxcnc/rt-preempt
>>>> > May 12 14:28:08 beaglebone msgd:0: rtapi_app exit detected - scheduled
>>>> > shutdown
>>>> > May 12 14:28:10 beaglebone msgd:0: msgd shutting down
>>>> >
>>>> >
>>>> > $ uname -a
>>>> > Linux beaglebone 4.19.120-bone-rt-r50 #1stretch PREEMPT RT Fri May 8
>>>> > 22:45:31 UTC 2020 armv7l GNU/Linux
>>>> >
>>>> > Every help would be very much appreciated,
>>>> > Regards,
>>>> > Klemen
>>>> >
>>>>
>>>> --
>>>> Charles Steinkuehler
>>>> [email protected]
>>>>
>>> --
>>
> website: http://www.machinekit.io blog: http://blog.machinekit.io github:
>> https://github.com/machinekit
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