Re: ezca for 3.15

["Siddons, David via Tech-talk" <tech-talk at aps.anl.gov>]

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 <rivers at cars.uchicago.edu>
Sent: Saturday, February 1, 2020 5:13 PM
To: Siddons, David <siddons at bnl.gov>
Cc: tech-talk <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 <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 <rivers at cars.uchicago.edu>
Sent: Saturday, February 1, 2020 3:56 PM
To: Siddons, David <siddons at bnl.gov>
Cc: tech-talk <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 <tech-talk-bounces at aps.anl.gov> on behalf of Siddons, David via Tech-talk <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.

Attachment: Makefile
Description: Makefile

#include <cadef.h>
#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);
} /* end main() */