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<== Date ==> <== Thread ==>

Subject: Re: RTEMS5 with epics-base
From: Michael Davidsaver <mdavidsaver@gmail.com>
To: "Heinz P. Junkes" <junkes@fhi-berlin.mpg.de>
Cc: EPICS Core Talk <core-talk@aps.anl.gov>
Date: Wed, 7 Nov 2018 07:25:49 -0800
The commit with this API change, dated 23 March 2018, is

https://git.rtems.org/rtems/commit/?h=4.10&id=b50468c6bff4e770aa038b9f87e514a2a1da906b

On 11/7/18 7:02 AM, Heinz P. Junkes wrote:
> they changed the Thread_Control_struct
> 
> I applied the following changes to epics-base:

Would this break 4.9.x?  Probably yet another ifdef is required...
(maybe defining an accessor macro)


> diff --git a/modules/libcom/src/osi/os/RTEMS/osdThread.c b/modules/libcom/src/osi/os/RTEMS/osdThread.c
> index 769e958..2db1ca5 100644
> --- a/modules/libcom/src/osi/os/RTEMS/osdThread.c
> +++ b/modules/libcom/src/osi/os/RTEMS/osdThread.c
> @@ -640,17 +640,17 @@ showInternalTaskInfo (rtems_id tid)
>       * that priority should be displayed, not the value truncated to
>       * the EPICS range.
>       */
> -    epicsPri = 199-thread.real_priority;
> +    epicsPri = 199-thread.Priority_node.real_priority;
>      if (epicsPri < 0)
>          fprintf(epicsGetStdout(),"   <0");
>      else if (epicsPri > 99)
>          fprintf(epicsGetStdout(),"  >99");
>      else
>          fprintf(epicsGetStdout()," %4d", epicsPri);
> -    if (thread.current_priority == thread.real_priority)
> -        fprintf(epicsGetStdout(),"%4d    ", (int)thread.current_priority);
> +    if (thread.Priority_node.current_priority == thread.Priority_node.real_priority)
> +        fprintf(epicsGetStdout(),"%4d    ", (int)thread.Priority_node.current_priority);
>      else
> -        fprintf(epicsGetStdout(),"%4d/%-3d", (int)thread.real_priority, (int)thread.current_priority);
> +        fprintf(epicsGetStdout(),"%4d/%-3d", (int)thread.Priority_node.real_priority, (int)thread.Priority_node.current_priority);
>      showBitmap (bitbuf, thread.current_state, taskState);
>      fprintf(epicsGetStdout(),"%8.8s", bitbuf);
>      if (thread.current_state & (STATES_WAITING_FOR_SEMAPHORE |
> 
> 
> On 11/6/18 8:21 PM, Michael Davidsaver wrote:
>> On 11/6/18 11:07 AM, Heinz P. Junkes wrote:
>>> Hi Mike,
>>>
>>> thank you for your mail.
>>>
>>> On 11/6/18 7:00 PM, Michael Davidsaver wrote:
>>>> How did you get this toolchain?  I'm wondering if you have some "contamination"
>>>> from other/newer toolchains?
>>> The usual way but with branch 4.10 instead of master.
>> Ha, what "usual" way?  My recipe differs from this.
>>
>> https://github.com/mdavidsaver/rsb/blob/4.10/.ci/build.sh
>>
>> I was going to suggest that you try to run this yourself, but then I noticed
>> that the most recent travis-ci run had failed because a source file
>> http://www.multiprecision.org/mpc/download/mpc-0.8.1.tar.gz
>> has vanished (now a 500).
>>
>> This may be fixed on the 4.10 branch of the upstream rsb repository,
>> but I don't have the patience to update right now.  The rtems-source-builder
>> has been nothing but trouble for me.  Old version or new, it seems to be
>> perpetually broken in one way or the other.
>>
>>
>>> git clone git://git.rtems.org/rtems.git
>>> git clone git://git.rtems.org/rtems-tools.git
>>> git clone git://git.rtems.org/rtems-source-builder.git
>>>
>>> cd into rtems: git checkout origin/4.10
>>>
>>> cd into rtems-tools: git checkout origin/4.10
>>>
>>> cd into rtems-source-builder: git checkout origin/4.10
>>>
>>> waf configure --prefix=/home/h1/RTEMS/rtems/4.10 build install
>>>
>>> source-builder/sb-set-builder --log log.i386.4.10.log --prefix=/home/h1/RTEMS/rtems/4.10 4.10/rtems-i386
>>>
>>> rtems-source-builder/source-builder/sb-bootstrap
>>>
>>> rtems/configure --enable-maintainer-mode --prefix=/home/h1/RTEMS/rtems/4.10 --target=i386-rtems4.10 --enable-rtemsbsp="pc386" --enable-cxx --enable-networking --enable-tests=samples
>>>
>>> In RTEMS/rtems/4.10/i386-rtems4.10/pc386/lib/include/rtems/score/thread.h
>>>
>>> real_priority is defined in struct Thread_Priority_node
>>>
>>> ...
>>>
>>> /**
>>>   * @brief Encapsulates base and inherited priority.
>>>   */
>>> typedef struct Thread_Priority_node {
>>>    Chain_Node                   Node;
>>>    /** current priority = min(real_priority, min(Inherited_priorities)) */
>>>    Priority_Control             current_priority;
>>>    /** base priority irrespective of inheritance/ceiling */
>>>    Priority_Control             real_priority;
>>>    /** NULL if not waiting, or the mutex blocked upon
>>>     * if waiting. If not NULL, then this Priority_node is on the mutex holder's
>>>     * Priority_node.Inherited_priorities list. */
>>>    struct CORE_mutex_Control   *waiting_to_hold;
>>>    /** Priority Queue of thread Priority_nodes blocked by this one, thus
>>>     * possibly contributing their priority to the current_priority. */
>>>    Chain_Control                Inherited_priorities;
>>> } Thread_Priority_node;
>>> ...
>>>
>>> I will investigate further,
>>>
>>> Heinz
>>>
>>>> If you want you can try to test using the pre-built toolchain I created for the travis-ci builder.
>>>> These are built for use in an Ubuntu Linux environment.
>>>>
>>>> https://github.com/mdavidsaver/rsb/releases
>>>>
>>>> In this toolchain the Thread_Control struct is
>>>>
>>>> /home/travis/.rtems/i386-rtems4.10/pc386/lib/include/rtems/score/thread.h
>>>>
>>>> and 'real_priority' and 'current_priority' are unconditional members.
>>>>
>>>>
>>>> On 11/6/18 9:44 AM, Heinz P. Junkes wrote:
>>>>> Try to compile epics-base against rtems 4.10 for i368 target (pc368) and get
>>>>>
>>>>> /home/h1/RTEMS/rtems/4.10/bin/i386-rtems4.10-gcc --pipe -B/home/h1/RTEMS/rtems/4.10/i386-rtems4.10/pc386/lib/ -specs bsp_specs -qrtems   -fasm   -mtune=i386 -DUNIX      -O2 -g -g   -Wall           -I. -I../O.Common -I. -I../../src/osi/compiler/gcc -I../../src/osi/compiler/default -I. -I../../src/osi/os/RTEMS -I../../src/osi/os/posix -I../../src/osi/os/default -I.. -I../../src/as -I../../src/bucketLib -I../../src/calc -I../../src/cvtFast -I../../src/cppStd -I../../src/cxxTemplates -I../../src/dbmf -I../../src/ellLib -I../../src/env -I../../src/error -I../../src/fdmgr -I../../src/flex -I../../src/freeList -I../../src/gpHash -I../../src/iocsh -I../../src/log -I../../src/macLib -I../../src/misc -I../../src/osi -I../../src/pool -I../../src/ring -I../../src/taskwd -I../../src/timer -I../../src/yacc -I../../src/yacc -I../../src/yajl -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include/compiler/gcc -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include/os/RTEMS
>>>>> -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include/compiler/gcc -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include/os/RTEMS -I/home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/include -c ../../src/osi/os/RTEMS/osdThread.c
>>>>> ../../src/osi/os/RTEMS/osdThread.c: In function 'showInternalTaskInfo':
>>>>> ../../src/osi/os/RTEMS/osdThread.c:643: error: 'Thread_Control' has no member named 'real_priority'
>>>>> ../../src/osi/os/RTEMS/osdThread.c:650: error: 'Thread_Control' has no member named 'current_priority'
>>>>> ../../src/osi/os/RTEMS/osdThread.c:650: error: 'Thread_Control' has no member named 'real_priority'
>>>>> ../../src/osi/os/RTEMS/osdThread.c:651: error: 'Thread_Control' has no member named 'current_priority'
>>>>> ../../src/osi/os/RTEMS/osdThread.c:653: error: 'Thread_Control' has no member named 'real_priority'
>>>>> ../../src/osi/os/RTEMS/osdThread.c:653: error: 'Thread_Control' has no member named 'current_priority'
>>>>> /home/h1/WIP/EPICS_PORT/4.10/epics-base/epics-base/configure/RULES_BUILD:232: recipe for target 'osdThread.o' failed
>>>>> make[4]: *** [osdThread.o] Error 1
>>>>>
>>>>> Heinz
>>>>>
>>>>>
>>>>>
>>>>>     11/3/18 12:12 PM, Heinz Junkes wrote:
>>>>>
>>>>>> Hello friends,
>>>>>>
>>>>>> unfortunately, it's only now that I get back to taking care of rtems-5 for epics-base.
>>>>>>
>>>>>> And unfortunately, I haven't really taken care of travis-ci yet. I found the last "travis-run” for rtems 4.10:
>>>>>> https://travis-ci.org/epics-base/epics-base/jobs/450069785.
>>>>>> I'm going to try to replay this on my computer first.
>>>>>>
>>>>>> Do I see it right that I should then try to do exactly that with rtems-5. So on the qemu-system-x86 with the rtems i386 bsp?
>>>>>>
>>>>>> The next step would then be on my hardware mvme6100? And maybe also on the qemu for mvme3100?
>>>>>> @Michael: Can you write me again where I can get the qemu mvme3100 from?
>>>>>> I'll try my luck and hope to make it to Melbourne.
>>>>>> Heinz
>>>>>>
>>>>> ----------------------------------------------------------------------
>>>>> Das FHI verarbeitet, speichert und loescht Daten im Rahmen seiner
>>>>> Geschaeftstaetigkeit gemaess der Datenschutz-Grundverordnung (DSGVO)
>>>>> [General Data Protection Regulation (GDPR)] der Europaeischen Union.
>>>>>
> 
> 
> ----------------------------------------------------------------------
> Das FHI verarbeitet, speichert und loescht Daten im Rahmen seiner
> Geschaeftstaetigkeit gemaess der Datenschutz-Grundverordnung (DSGVO)
> [General Data Protection Regulation (GDPR)] der Europaeischen Union.
> 


References:
RTEMS5 with epics-base Heinz Junkes
Re: RTEMS5 with epics-base Heinz P. Junkes
Re: RTEMS5 with epics-base Michael Davidsaver
Re: RTEMS5 with epics-base Heinz P. Junkes
Re: RTEMS5 with epics-base Michael Davidsaver
Re: RTEMS5 with epics-base Heinz P. Junkes

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