Experimental Physics and
Industrial Control System

"Amit Chauhan" <[email protected]> · Wed, 30 Jul 2014 12:38:35 +0530

Dear Mark,

This is further to our trials of compiling EPICS for 'VxWorks 6.9'

We ran the 'make' from Visual Studio (2010) Command Prompt.

I am attaching following with this mail:

(1) CONFIG_SITE.Common.vxWorksCommon  : This is the only file we have
modified.

(2) make_output.txt : output of the make process (with error message
appended at the bottom )

(3) errMsg.jpg : This is a pop-up message we encountered 42 times  towards
the end of 'make' . We had to press 'OK' everytime to proceed.

During this trial no changes were made related to the ringPointer.

We would just like to add that when we are buidling EPICS base 3.14.12.4
with Visual Studio 2010 for 'Windows' as target, we are not encountering any
errors.

It is just that when we select 'vxWorks' as target the problems arise.

Regards,

Amit Chauhan
RRCAT, Indore 

-----Original Message-----
From: Mark Rivers [mailto:[email protected]] 
Sent: Tuesday, July 29, 2014 8:05 AM
To: Amit Chauhan; 'Dirk Zimoch'; 'Eric Norum'
Cc: 'Bhavna Merh'
Subject: RE: EPICS on VxWorks6.9

Hi Amit,

I have not heard back from you about this.

As I said, many people including me are building EPICS base 3.14.12.4 with
Visual Studio 2010 and are not seeing the errors you are seeing.  So there
must be something different about your configuration.

Mark

________________________________________
From: Mark Rivers
Sent: Tuesday, July 22, 2014 6:35 AM
To: Amit Chauhan; 'Dirk Zimoch'; 'Eric Norum'
Cc: [email protected]; 'Bhavna Merh'
Subject: RE: EPICS on VxWorks6.9

Hi Amit,

I think the fact that you are building for vxWorks 6.9 is not relevant.  It
is failing when building for the host, which is win32-x86.  But you are
using Visual Studio 2010, which many of us are using without any problems.

Please do the following:

At the top level of base type:

make realclean realuninstall

Then type

make

and send the complete output when it fails.

Also please tell us what files you have modified in base/configure/os, and
how you have changed them.

Mark

________________________________________
From: Amit Chauhan [[email protected]]
Sent: Tuesday, July 22, 2014 12:46 AM
To: Mark Rivers; 'Dirk Zimoch'; 'Eric Norum'
Cc: [email protected]; 'Bhavna Merh'
Subject: RE: EPICS on VxWorks6.9

Hi,

Thanks to Mark and Dirk for taking their time out to dwell into the problem.

I am using Visual Studio 2010.

As suggested, I have NOT removed volatile keyword, but I have type casted
buffer as :

delete [ ] (T**) buffer;

As a result the make process has progressed beyond the point where it was
flagging error related to ringpointer.

But now the make process is stopping with following errors related to a file
named 'epicsSingleton.h' :

base-3-14-12-4\\include
..\\..\\..\\src\\libCom\\cxxTemplates\\epicsOnce.cpp
epicsOnce.cpp
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(37) : error C2039:
'size_t' : is not a member of 'std'
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(82) : error C2955:
'epicsSingleton' : use of class template requires template argument list
        ..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(78) : see
declaration of 'epicsSingleton'
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(87) : error C2244:
'epicsSingleton<TYPE>::reference::reference::reference' : unable to resolve
function overload
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(89) : error C2954:
template definitions cannot nest
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(57) : error C2027: use of
undefined type 'epicsSingleton<class epicsMutex>'
        ..\..\..\src\libCom\cxxTemplates\epicsOnce.cpp(40) : see reference
to class template instantiation 'epicsSingleton<class epicsMutex>' being
compiled
..\..\..\src\libCom\cxxTemplates\epicsSingleton.h(57) : error C2027: use of
undefined type 'epicsSingleton<class tsFreeList<class epicsOnceImpl,16,class
epicsMutex> >'
        ..\..\..\src\libCom\cxxTemplates\epicsOnce.cpp(48) : see reference
to class template instantiation 'epicsSingleton<class tsFreeList<class
epicsOnceImpl,16,class epicsMutex> >' being compiled
make[3]: Leaving directory `C:/EPICS/base-3-14-12-4/src/libCom/O.win32-x86'
make[2]: Leaving directory `C:/EPICS/base-3-14-12-4/src/libCom'
make[1]: Leaving directory `C:/EPICS/base-3-14-12-4/src'

I am relatively new to EPICS and for the first time trying to build it for
VxWorks.
Suggestions to resolve these issues will be of help.

Regards,

Amit Chauhan
RRCAT, Indore

-----Original Message-----
From: Mark Rivers [mailto:[email protected]]
Sent: Monday, July 21, 2014 5:56 PM
To: Dirk Zimoch; Eric Norum; [email protected]
Cc: [email protected]
Subject: RE: EPICS on VxWorks6.9

> I just see that this is not a problem with vxWorks 6.9 but with the
> Windows host build.

> Eric, have you tested your change with Windows?

That change was done in EPICS base 3.14.10 in 2008.  We have certainly built
a lot on Windows since then!

The question is what version of Visual Studio is Amit using?  He did not
tell us that in the original post.  I have used Visual Studio 2008 and 2010
to compile base since 2008 and have not had this problem.  I suspect that
Amit is using a more recent version of Visual Studio?

Mark

________________________________________
From: Dirk Zimoch [[email protected]]
Sent: Monday, July 21, 2014 3:15 AM
To: Mark Rivers; Eric Norum
Cc: [email protected]
Subject: Re: EPICS on VxWorks6.9

On 16.07.2014 20:40, Mark Rivers wrote:
>> The problem is
>>      T  * volatile * buffer;
>> in epicsRingPointer.h.
>> I am not sure if "volatile" really makes any sense here.I strongly
suggest NOT removing the volatile keyword.
>
>
> In October 2008 we struggled with a very nasty bug in epicsRingPointer.h.
The symptoms were:
>
> - Only failed on multi-processor systems
> - Only failed with recent versions of gcc with optimization enabled
> - Only failed 1 in 100,000 times
>
> Eric Norum fixed the problem.  The changes included the following
(comparison of epicsRingPointer.h from base 3.14.8.2 and 3.14.12.4)
>
>
> -private: // Data
> -    int nextPush;
> -    int nextPop;
> +private: /* Data */
> +    volatile int nextPush;
> +    volatile int nextPop;
>       int size;
> -    T **buffer;
> +    T  * volatile * buffer;
>   };
>
> So he added that volatile keyword, and it would need a lot of testing to
prove it is not needed.
>
> Mark

In that case the volatile needs to be removed for the delete, because it
seems that the compiler thinks that there is no delete operator for
arrays of volatiles and implicitly converting volatile away is
considered impossible.

I just see that this is not a problem with vxWorks 6.9 but with the
Windows host build.

Eric, have you tested your change with Windows?

>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
On Behalf Of Dirk Zimoch
> Sent: Wednesday, July 16, 2014 7:00 AM
> To: [email protected]
> Subject: Re: EPICS on VxWorks6.9
>
> Newer C++ compilers consider more and more things in EPICS errors. And
> maybe they are right.
>
> The problem is
>       T  * volatile * buffer;
> in epicsRingPointer.h.
>
> I am not sure if "volatile" really makes any sense here.
>
> The other possibility is to cast away the "void" in the destructor.
>
> delete [ ] (T*) buffer;
>
> Or whatever the nicer C++ syntax is (probably using const_cast<T*>()?)
>
> Dirk
>
> On 16.07.2014 08:14, Amit Chauhan wrote:
>> Hi,
>>
>> We are trying to put EPICS on VxWorks.
>>
>> Various information related to our setup are:
>>
>>            EPICS base version : 3.14.12.4
>>
>>            VxWorks Version : 6.9
>>
>> Workbench version : 3.3
>>
>>            Host Architecture : win32 on x86
>>
>>            Target Architecture: ppc-32
>>
>>            Target Board :  MVME-5500 with PowerPC 7447 processor
>>
>> On running the 'make' command, the EPICS build stops after a while with
>> an error.
>>
>> *_Following is the output of the make command:_*
>>
>> make -C ./configure install
>>
>> make[1]: Entering directory `C:/EPICS/base-3-14-12-4/configure'
>>
>> perl ../src/tools/makeMakefile.pl O.win32-x86 ../..
>>
>> perl ../src/tools/makeMakefile.pl O.vxWorks-ppc32 ../..
>>
>> perl -MExtUtils::Command -e mkpath O.Common
>>
>> make -C O.win32-x86 -f ../Makefile TOP=../.. T_A=win32-x86 install
>>
>> make[2]: Entering directory
`C:/EPICS/base-3-14-12-4/configure/O.win32-x86'
>>
>> make[2]: Nothing to be done for `install'.
>>
>> make[2]: Leaving directory
`C:/EPICS/base-3-14-12-4/configure/O.win32-x86'
>>
>> make -C O.vxWorks-ppc32 -f ../Makefile TOP=../.. T_A=vxWorks-ppc32
install
>>
>> make[2]: Entering directory
>> `C:/EPICS/base-3-14-12-4/configure/O.vxWorks-ppc32'
>>
>> make[2]: Nothing to be done for `install'.
>>
>> make[2]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/configure/O.vxWorks-ppc32'
>>
>> make[1]: Leaving directory `C:/EPICS/base-3-14-12-4/configure'
>>
>> make -C ./src install
>>
>> make[1]: Entering directory `C:/EPICS/base-3-14-12-4/src'
>>
>> make -C ./tools install
>>
>> make[2]: Entering directory `C:/EPICS/base-3-14-12-4/src/tools'
>>
>> perl ../../src/tools/makeMakefile.pl O.win32-x86 ../../..
>>
>> perl ../../src/tools/makeMakefile.pl O.vxWorks-ppc32 ../../..
>>
>> perl -MExtUtils::Command -e mkpath O.Common
>>
>> make -C O.win32-x86 -f ../Makefile TOP=../../.. T_A=win32-x86 install
>>
>> make[3]: Entering directory
`C:/EPICS/base-3-14-12-4/src/tools/O.win32-x86'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
`C:/EPICS/base-3-14-12-4/src/tools/O.win32-x86'
>>
>> make -C O.vxWorks-ppc32 -f ../Makefile TOP=../../.. T_A=vxWorks-ppc32
>> install
>>
>> make[3]: Entering directory
>> `C:/EPICS/base-3-14-12-4/src/tools/O.vxWorks-ppc32'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/src/tools/O.vxWorks-ppc32'
>>
>> make[2]: Leaving directory `C:/EPICS/base-3-14-12-4/src/tools'
>>
>> make -C ./makeBaseApp install
>>
>> make[2]: Entering directory `C:/EPICS/base-3-14-12-4/src/makeBaseApp'
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl O.win32-x86
>> ../../..
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl
>> O.vxWorks-ppc32 ../../..
>>
>> perl -MExtUtils::Command -e mkpath O.Common
>>
>> make -C O.win32-x86 -f ../Makefile TOP=../../.. T_A=win32-x86 install
>>
>> make[3]: Entering directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseApp/O.win32-x86'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseApp/O.win32-x86'
>>
>> make -C O.vxWorks-ppc32 -f ../Makefile TOP=../../.. T_A=vxWorks-ppc32
>> install
>>
>> make[3]: Entering directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseApp/O.vxWorks-ppc32'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseApp/O.vxWorks-ppc32'
>>
>> make[2]: Leaving directory `C:/EPICS/base-3-14-12-4/src/makeBaseApp'
>>
>> make -C ./makeBaseExt install
>>
>> make[2]: Entering directory `C:/EPICS/base-3-14-12-4/src/makeBaseExt'
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl O.win32-x86
>> ../../..
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl
>> O.vxWorks-ppc32 ../../..
>>
>> perl -MExtUtils::Command -e mkpath O.Common
>>
>> make -C O.win32-x86 -f ../Makefile TOP=../../.. T_A=win32-x86 install
>>
>> make[3]: Entering directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseExt/O.win32-x86'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseExt/O.win32-x86'
>>
>> make -C O.vxWorks-ppc32 -f ../Makefile TOP=../../.. T_A=vxWorks-ppc32
>> install
>>
>> make[3]: Entering directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseExt/O.vxWorks-ppc32'
>>
>> make[3]: Nothing to be done for `install'.
>>
>> make[3]: Leaving directory
>> `C:/EPICS/base-3-14-12-4/src/makeBaseExt/O.vxWorks-ppc32'
>>
>> make[2]: Leaving directory `C:/EPICS/base-3-14-12-4/src/makeBaseExt'
>>
>> make -C ./libCom install
>>
>> make[2]: Entering directory `C:/EPICS/base-3-14-12-4/src/libCom'
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl O.win32-x86
>> ../../..
>>
>> perl C:\EPICS\base-3-14-12-4/bin/win32-x86/makeMakefile.pl
>> O.vxWorks-ppc32 ../../..
>>
>> perl -MExtUtils::Command -e mkpath O.Common
>>
>> make -C O.win32-x86 -f ../Makefile TOP=../../.. T_A=win32-x86 install
>>
>> make[3]: Entering directory
`C:/EPICS/base-3-14-12-4/src/libCom/O.win32-x86'
>>
>> perl ../../../src/libCom/misc/makeEpicsVersion.pl
>> ../../../configure/CONFIG_BASE_VERSION ../O.Common
>>
>> Building epicsVersion.h from ../../../configure/CONFIG_BASE_VERSION
>>
>> Found EPICS Version 3.14.12.4
>>
>> "Installing generated generic include file
>> C:\EPICS\base-3-14-12-4/include/epicsVersion.h"
>>
>> rc -l 0x409 -I. -I../O.Common -I. -I../../../src/libCom/osi/os/WIN32
>> -I../../../src/libCom/osi/os/default -I..
>> -I../../../src/libCom/bucketLib -I../../../src/libCom/ring
>> -I../../../src/libCom/calc -I../../../src/libCom/cvtFast
>> -I../../../src/libCom/cppStd -I../../../src/libCom/cxxTemplates
>> -I../../../src/libCom/dbmf -I../../../src/libCom/ellLib
>> -I../../../src/libCom/env -I../../../src/libCom/error
>> -I../../../src/libCom/fdmgr -I../../../src/libCom/freeList
>> -I../../../src/libCom/gpHash -I../../../src/libCom/iocsh
>> -I../../../src/libCom/logClient -I../../../src/libCom/macLib
>> -I../../../src/libCom/misc -I../../../src/libCom/osi
>> -I../../../src/libCom/taskwd -I../../../src/libCom/timer
>> -I../../../src/libCom/tsDefs -IC:\EPICS\base-3-14-12-4/include/os/WIN32
>> -IC:\EPICS\base-3-14-12-4/include -fo Com.res ../Com.rc
>>
>> cl -c /nologo /D__STDC__=0 /D_CRT_SECURE_NO_DEPRECATE
>> /D_CRT_NONSTDC_NO_DEPRECATE   /Ox /GL   /W3 /w44355       /MT
>> -DEPICS_DLL_NO -I. -I..\\O.Common -I.
>> -I..\\..\\..\\src\\libCom\\osi\\os\\WIN32
>> -I..\\..\\..\\src\\libCom\\osi\\os\\default -I..
>> -I..\\..\\..\\src\\libCom\\bucketLib -I..\\..\\..\\src\\libCom\\ring
>> -I..\\..\\..\\src\\libCom\\calc -I..\\..\\..\\src\\libCom\\cvtFast
>> -I..\\..\\..\\src\\libCom\\cppStd
>> -I..\\..\\..\\src\\libCom\\cxxTemplates -I..\\..\\..\\src\\libCom\\dbmf
>> -I..\\..\\..\\src\\libCom\\ellLib -I..\\..\\..\\src\\libCom\\env
>> -I..\\..\\..\\src\\libCom\\error -I..\\..\\..\\src\\libCom\\fdmgr
>> -I..\\..\\..\\src\\libCom\\freeList -I..\\..\\..\\src\\libCom\\gpHash
>> -I..\\..\\..\\src\\libCom\\iocsh -I..\\..\\..\\src\\libCom\\logClient
>> -I..\\..\\..\\src\\libCom\\macLib -I..\\..\\..\\src\\libCom\\misc
>> -I..\\..\\..\\src\\libCom\\osi -I..\\..\\..\\src\\libCom\\taskwd
>> -I..\\..\\..\\src\\libCom\\timer -I..\\..\\..\\src\\libCom\\tsDefs
>> -IC:\EPICS\base-3-14-12-4\\include\\os\\WIN32
>> -IC:\EPICS\base-3-14-12-4\\include
>> ..\\..\\..\\src\\libCom\\bucketLib\\bucketLib.c
>>
>> bucketLib.c
>>
>> cl /nologo /EHsc /GR -c /nologo /D__STDC__=0 /D_CRT_SECURE_NO_DEPRECATE
>> /D_CRT_NONSTDC_NO_DEPRECATE /Ox /GL   /W3 /w44355       /MT
>> -DEPICS_DLL_NO /TP   -I. -I..\\O.Common -I.
>> -I..\\..\\..\\src\\libCom\\osi\\os\\WIN32
>> -I..\\..\\..\\src\\libCom\\osi\\os\\default -I..
>> -I..\\..\\..\\src\\libCom\\bucketLib -I..\\..\\..\\src\\libCom\\ring
>> -I..\\..\\..\\src\\libCom\\calc -I..\\..\\..\\src\\libCom\\cvtFast
>> -I..\\..\\..\\src\\libCom\\cppStd
>> -I..\\..\\..\\src\\libCom\\cxxTemplates -I..\\..\\..\\src\\libCom\\dbmf
>> -I..\\..\\..\\src\\libCom\\ellLib -I..\\..\\..\\src\\libCom\\env
>> -I..\\..\\..\\src\\libCom\\error -I..\\..\\..\\src\\libCom\\fdmgr
>> -I..\\..\\..\\src\\libCom\\freeList -I..\\..\\..\\src\\libCom\\gpHash
>> -I..\\..\\..\\src\\libCom\\iocsh -I..\\..\\..\\src\\libCom\\logClient
>> -I..\\..\\..\\src\\libCom\\macLib -I..\\..\\..\\src\\libCom\\misc
>> -I..\\..\\..\\src\\libCom\\osi -I..\\..\\..\\src\\libCom\\taskwd
>> -I..\\..\\..\\src\\libCom\\timer -I..\\..\\..\\src\\libCom\\tsDefs
>> -IC:\EPICS\base-3-14-12-4\\include\\os\\WIN32
>> -IC:\EPICS\base-3-14-12-4\\include
>> ..\\..\\..\\src\\libCom\\ring\\epicsRingPointer.cpp
>>
>> epicsRingPointer.cpp
>>
>> ..\..\..\src\libCom\ring\epicsRingPointer.h(93) : *error C2664: 'delete'
>> : cannot convert parameter 1 from 'void *volatile * ' to 'void *'*
>>
>> *        Conversion loses qualifiers*
>>
>> ..\..\..\src\libCom\ring\epicsRingPointer.cpp(82) : while compiling
>> class-template member function '__thiscall
>> epicsRingPointer<void>::~epicsRingPointer<void>(void)'
>>
>> make[3]: Leaving directory
`C:/EPICS/base-3-14-12-4/src/libCom/O.win32-x86'
>>
>> make[2]: Leaving directory `C:/EPICS/base-3-14-12-4/src/libCom'
>>
>> make[1]: Leaving directory `C:/EPICS/base-3-14-12-4/src'
>>
>> */The following code is written in epicsRingPointer.h (line 93):/*
>>
>> inline epicsRingPointer<T>:: ~epicsRingPointer( )
>>
>> { delete [ ] buffer; }
>>
>> If anyone can suggest us the solution to overcome this error it will be
>> of help to us.
>>
>> Regards,
>>
>> Amit Chauhan,
>>
>> RRCAT, Indore
>>
>
>
>

=

=

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System