RE: ezca for 3.15

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Hi Pete,

 

Rather than creating the Makefile yourself, it is easier to let EPICS create most of it for you.  I just successfully built your testenable application this way.  Here are the steps I followed.

 

Create a new application directory and cd to it

> mkdir testEnable

> cd testEnable

 

Run the makeBaseApp.pl perl script, telling it to create a caClient application type:

 

> /usr/local/epics/base-7.0.3.1/bin/linux-x86_64/makeBaseApp.pl -b /usr/local/epics/base-7.0.3.1 -t caClient testEnable

 

Go to the configure directory and edit RELEASE

 

> cd ../configure/

 

(edit RELEASE and add a line like the following to tell it to look in the EPICS extensions directory.  It will look in the include/ directory for include files and the lib/linux-x86_64 directory for libraries.

 

EXTENSIONS = /usr/local/epics/extensions_new

 

Go to the testEnableApp directory and edit the Makefile.

 

> cd ../testEnableApp/

 

(modify the provided Makefile so it looks like this)

 

*****************************

TOP=..

 

include $(TOP)/configure/CONFIG

#----------------------------------------

#  ADD MACRO DEFINITIONS AFTER THIS LINE

#=============================

 

PROD_HOST += testenable

testenable_SRCS += testenable.c

testenable_LIBS += ezca

testenable_LIBS += $(EPICS_BASE_HOST_LIBS)

 

include $(TOP)/configure/RULES

#----------------------------------------

#  ADD RULES AFTER THIS LINE

*****************************

 

To avoid compiler warnings I changed your testenable.c program to declare main() to return int, and added return 0;

 

*****************************

#include <cadef.h>

#include <ezca.h>

int main()

{

int d;

int s[384];

   ezcaGet("det1.TSEN", ezcaLong, 384, &s);

   ezcaGet("det1.CHAN",ezcaLong,1,&d);

   s[d]=1;

  ezcaPut("det1.TSEN", ezcaLong, 1, s);

  return 0;

} /* end main() */

*****************************

 

Then I just typed "make" and it built fine.

 

*****************************

corvette:~/devel/testEnable/testEnableApp>make

perl -CSD /usr/local/epics/base-7.0.3.1/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../..

mkdir -p O.Common

make -C O.linux-x86_64 -f ../Makefile TOP=../.. \

    T_A=linux-x86_64 install

make[1]: Entering directory `/home/epics/devel/testEnable/testEnableApp/O.linux-x86_64'

perl -CSD /usr/local/epics/base-7.0.3.1/bin/linux-x86_64/mkmf.pl  -m testenable.d -I. -I../O.Common -I. -I. -I.. -I../../include/compiler/gcc -I../../include/os/Linux -I../../include   -I/usr/local/epics/extensions_new/include -I/usr/local/epics/base-7.0.3.1/include/compiler/gcc -I/usr/local/epics/base-7.0.3.1/include/os/Linux -I/usr/local/epics/base-7.0.3.1/include        testenable.o ../testenable.c

make[1]: Leaving directory `/home/epics/devel/testEnable/testEnableApp/O.linux-x86_64'

make[1]: Entering directory `/home/epics/devel/testEnable/testEnableApp/O.linux-x86_64'

/usr/bin/gcc  -D_GNU_SOURCE -D_DEFAULT_SOURCE           -D_X86_64_  -DUNIX  -Dlinux     -O3   -Wall      -mtune=generic      -m64  -I. -I../O.Common -I. -I. -I.. -I../../include/compiler/gcc -I../../include/os/Linux -I../../include   -I/usr/local/epics/extensions_new/include -I/usr/local/epics/base-7.0.3.1/include/compiler/gcc -I/usr/local/epics/base-7.0.3.1/include/os/Linux -I/usr/local/epics/base-7.0.3.1/include        -c ../testenable.c

/usr/bin/g++ -o testenable  -L/home/epics/devel/testEnable/lib/linux-x86_64 -L/usr/local/epics/base-7.0.3.1/lib/linux-x86_64 -L/usr/local/epics/extensions_new/lib/linux-x86_64 -Wl,-rpath,/home/epics/devel/testEnable/lib/linux-x86_64 -Wl,-rpath,/usr/local/epics/base-7.0.3.1/lib/linux-x86_64 -Wl,-rpath,/usr/local/epics/extensions_new/lib/linux-x86_64           -rdynamic -m64         testenable.o    -lezca -lca -lCom

Installing created executable ../../bin/linux-x86_64/testenable

make[1]: Leaving directory `/home/epics/devel/testEnable/testEnableApp/O.linux-x86_64'

*****************************

 

Mark

 

 

From: Siddons, David <siddons at bnl.gov>

Sent: Monday, February 3, 2020 11:51 AM

To: Mark Rivers <rivers at cars.uchicago.edu>

Cc: tech-talk <tech-talk at aps.anl.gov>

Subject: Re: ezca for 3.15

 

Hi Mark,

   Added cadef.h and get:

 

gcc -c -fPIC -I/home/peter/epics/extensions/include -I/home/peter/epics/base/include -I/home/peter/epics/base/include/os/Linux testenable.c

In file included from /home/peter/epics/base/include/epicsTypes.h:19:0,

                 from /home/peter/epics/base/include/caerr.h:31,

                 from /home/peter/epics/base/include/cadef.h:48,

                 from testenable.c:1:

/home/peter/epics/base/include/compilerDependencies.h:19:10: fatal error: compilerSpecific.h: No such file or directory

 #include "compilerSpecific.h"

          ^~~~~~~~~~~~~~~~~~~~

compilation terminated.

 

I hacked a Makefile, and the above was generated when I used it. I got the same error when I used the single compile line I had before. I've attached the c file and the makefile. Any suggestions?

Pete.

 

________________________________________

From: Mark Rivers <mailto:rivers at cars.uchicago.edu>

Sent: Saturday, February 1, 2020 5:13 PM

To: Siddons, David <mailto:siddons at bnl.gov>

Cc: tech-talk <mailto:tech-talk at aps.anl.gov>

Subject: Re: ezca for 3.15

 

Hi Peter,

 

 

You need this to add this line in your program:

 

 

#include <cadef.h>

 

 

before

 

 

#include <ezca.h>

 

 

Because ezca.h uses chid, it should really be including cadef itself.  But it doesn't.

 

 

Mark

 

 

 

________________________________

From: Siddons, David <mailto:siddons at bnl.gov>

Sent: Saturday, February 1, 2020 3:53 PM

To: Mark Rivers

Cc: tech-talk

Subject: Re: ezca for 3.15

 

Hi Mark,

   OK, I rebuilt my extensions directory, and built ezca. All went well. When I try to use ezca I hit problems. Here is my simple program; it reads a vector, changes one element and then writes it back:

 

#include <ezca.h>

main()

{

int d;

int s[384];

   ezcaGet("det1.TSEN", ezcaLong, 384, &s);

   ezcaGet("det1.CHAN",ezcaLong,1,&d);

   s[d]=1;

  ezcaPut("det1.TSEN", ezcaLong, 1, s);

}

 

and my compile line:

gcc -o testenable -L/home/peter/epics/extensions-master/lib -I/home/peter/epics/extensions-master/include -I//home/peter/epics/base-3.15.6/include/ -lezca testenable.c

 

which gets me:

 

In file included from testenable.c:1:0:

/home/peter/epics/extensions-master/include/ezca.h:77:61: error: unknown type name ‘chid’; did you mean ‘void’?

 epicsShareFunc int epicsShareAPI ezcaPvToChid(char *pvname, chid **cid);

                                                             ^~~~

                                                             void

/home/peter/epics/extensions-master/include/ezca.h:103:2: error: unknown type name ‘TS_STAMP’

  TS_STAMP *timestamp, short *status, short *severity);

  ^~~~~~~~

/home/peter/epics/extensions-master/include/ezca.h:107:45: error: unknown type name ‘TS_STAMP’

  char ezcatype, int nelem, void *data_buff, TS_STAMP *timestamp,

                                             ^~~~~~~~

testenable.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]

 main()

 ^~~~

 

 

So what am I doing wrong?

Pete.

 

________________________________

From: Mark Rivers <mailto:rivers at cars.uchicago.edu>

Sent: Saturday, February 1, 2020 3:56 PM

To: Siddons, David <mailto:siddons at bnl.gov>

Cc: tech-talk <mailto:tech-talk at aps.anl.gov>

Subject: Re: ezca for 3.15

 

Hi Pete,

 

 

I suspect you may be using an old version of ezca?  The latest version is here:

 

https://github.com/epics-extensions/extensions

 

<https://github.com:epics-extensions/extensions>

 

I just built successfully with that version on base 7.0.3.1, so I am pretty sure 3.15 will build fine as well.

 

 

Here is the output when building:

 

corvette:extensions_new/src/ezca>make

perl -CSD /corvette/usr/local/epics/base-7.0.3.1/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../../..

mkdir -p O.Common

make -C O.linux-x86_64 -f ../Makefile TOP=../../.. \

    T_A=linux-x86_64 install

make[1]: Entering directory `/usr/local/epics/extensions_new/src/ezca/O.linux-x86_64'

perl -CSD /corvette/usr/local/epics/base-7.0.3.1/bin/linux-x86_64/mkmf.pl  -m ezca.d -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include -I/corvette/usr/local/epics/base-7.0.3.1/include/compiler/gcc -I/corvette/usr/local/epics/base-7.0.3.1/include/os/Linux -I/corvette/usr/local/epics/base-7.0.3.1/include   -I../../../include           ezca.o ../ezca.c

make[1]: Leaving directory `/usr/local/epics/extensions_new/src/ezca/O.linux-x86_64'

make[1]: Entering directory `/usr/local/epics/extensions_new/src/ezca/O.linux-x86_64'

/usr/bin/gcc  -D_GNU_SOURCE -D_DEFAULT_SOURCE           -D_X86_64_  -DUNIX  -Dlinux     -O3   -Wall      -mtune=generic      -m64 -fPIC -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include -I/corvette/usr/local/epics/base-7.0.3.1/include/compiler/gcc -I/corvette/usr/local/epics/base-7.0.3.1/include/os/Linux -I/corvette/usr/local/epics/base-7.0.3.1/include   -I../../../include           -c ../ezca.c

../ezca.c: In function 'pop_channel':

../ezca.c:7731:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Wformat=]

    sizeof(struct channel)*NODESPERMAL, Channel_avail_hdr);

                  ^

../ezca.c:7731:18: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]

../ezca.c: In function 'pop_monitor':

../ezca.c:7812:21: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Wformat=]

       sizeof(struct monitor)*NODESPERMAL, Monitor_avail_hdr);

                     ^

../ezca.c:7812:21: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]

../ezca.c: In function 'pop_work':

../ezca.c:7893:21: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Wformat=]

       sizeof(struct work)*NODESPERMAL, Work_avail_hdr);

                     ^

../ezca.c:7893:21: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]

/usr/bin/ar -rc    libezca.a    ezca.o

/usr/bin/ranlib libezca.a

/usr/bin/g++ -o libezca.so -shared -fPIC -Wl,-hlibezca.so -L/usr/local/epics/extensions_new/lib/linux-x86_64 -L/usr/local/epics/base-7.0.3.1/lib/linux-x86_64 -Wl,-rpath,/usr/local/epics/extensions_new/lib/linux-x86_64 -Wl,-rpath,/usr/local/epics/base-7.0.3.1/lib/linux-x86_64           -rdynamic -m64         ezca.o    -lca -lCom   -lpthread   -lreadline -lm -lrt -ldl -lgcc

Installing shared library ../../../lib/linux-x86_64/libezca.so

Installing library ../../../lib/linux-x86_64/libezca.a

 

 

 

Cheers,

 

Mark

 

 

________________________________

From: Tech-talk <mailto:tech-talk-bounces at aps.anl.gov> on behalf of Siddons, David via Tech-talk <mailto:tech-talk at aps.anl.gov>

Sent: Saturday, February 1, 2020 2:33 PM

To: EPICS Tech Talk

Subject: ezca for 3.15

 

I want to use ezca with 3.15, but it seems to be a mess of missing header files, presumably things dropped with 3.15 (e.g. tsDefs.h, cadef.h). Has anyone made it work?

Pete.