Re: Generating a loadable module for cexp (epics 3.14.12.3)

[Sue Witherspoon <withers@jlab.org>]

Thank you Till and Michael,
   Both suggestions fixed my problem!
-Sue
On 09/20/2013 09:13 PM, Michael Davidsaver wrote:
> This is what we use.  Tested with EPICS 3.14.11 and 3.14.12.3 w/ RTEMS
> 4.9.3.
>
> https://raw.github.com/epicsdeb/epics-base/master/debian/patches/0012-rtems-build-gesys-loadable-objects.patch
>
> On 09/20/13 12:10, Till Straumann wrote:
> > Your basic approach is correct. You'll just have to massage OP_SYS_LDFLAGS
> > and OP_SYS_LDLIBS at the right places. IIRC the structure of the EPICS
> > makefiles has changed (i.e. the order in which the different generic, host-
> > and target- specific CONFIG files are included). IIRC I set in
> >
> > os/CONFIG.$(EPICS_HOST_ARCH).$(T_A):
> >
> > OP_SYS_LDLIBS=
> > OP_SYS_LDFLAGS=$(CPU_CFLAGS) -Wl,-r -nostdlib
> >
> > HTH
> > - Till
> >
> > On 09/19/2013 02:33 PM, Sue Witherspoon wrote:
> > > Hi,
> > >       I've been using cexp for rtems 4.9.2, epics version 3.14.11 for some
> > > time now with little problem. Recently, I tried rebuilding
> > > my application using epics version 3.14.12.3. The build was successful
> > > with no errors but when I load the cexp module I get
> > > pages of load errors ( ...already exists...). See below.
> > >      What changed in the build process? Is there a fix for it? I did have
> > > a similar problem when I added the 'devIocStats' library to
> > > my epics 3.14.11 application but adding the following to my Makefile
> > > alleviated the problem.
> > > #  ADD RULES AFTER THIS LINE
> > > OP_SYS_LDLIBS = -g
> > >
> > > > Welcome to RTEMS GeSys
> > > > This system $Name:  $ was built on 20090323EDT11:17:38
> > > > $Id: init.c,v 1.42 2007-09-11 17:39:48 till Exp $
> > > > Installing TIOCGWINSZ line discipline: ok.
> > > > To skip initialization, press a key now...
> > > > Going to probe for Ethernet chips when initializing networking:
> > > > (supported are 3c509 (ISA), 3c90x (PCI) and eepro100 (PCI) variants).
> > > > NOTES:
> > > >     - Initializing a 3c90x may take a LONG time (~1min); PLUS: it NEEDS
> > > > media
> > > >       autonegotiation!
> > > >     - A BOOTP/DHCP server must supply my IF configuration
> > > >       (ip address, mask, [gateway, dns, ntp])
> > > > Ethernet address 0:E0:4B:2B:9E:E4
> > > > PCI IDs: 0x8086 0x1209 0x8086 0x70 0x10
> > > > Chip Type: 0
> > > > dec2114x : device 'dc1' not found on PCI bus
> > > > etherlink : No Etherlink devices found
> > > > 3C509: attach() called.
> > > > 3C509: isa_probe() looking for a card...
> > > > 3C509: isa_probe() fail to find a board.
> > > > bootpc_init: using network interface 'fxp1'
> > > > bootpc hw address is 0:e0:4b:2b:9e:e4
> > > > My ip address is 129 .57 .228 .69
> > > > Domain Name Server is 129 .57 .228 .40
> > > > Domain Name Server is 129 .57 .32 .100
> > > > Ignoring BOOTP/DHCP option code 150
> > > > Time Server is 129 .57 .228 .40
> > > > Time Server is 129 .57 .32 .100
> > > > Domain name is acc.jlab.org
> > > > Server name is 129.57.228.40
> > > > Boot file is /cs/dvl/iocs/iocpct3/boot/pxegrub
> > > > Subnet mask is 255 .255 .252 .0
> > > > Server ip address is 129 .57 .228 .40
> > > > Gateway ip address is 129 .57 .228 .1
> > > > Log server ip address is 129 .57 .250 .11
> > > > This is RTEMS-RPCIOD Release $Name: R_rtems_nfs_1_5 $
> > > > ($Id: rpcio.c,v 1.42 2007/06/12 04:47:25 strauman Exp $)
> > > >
> > > > Till Straumann, Stanford/SLAC/SSRL 2002
> > > > See LICENSE file for licensing info
> > > > This is RTEMS-NFS Release $Name: R_rtems_nfs_1_5 $
> > > > ($Id: nfs.c,v 1.48 2007/06/12 04:47:25 strauman Exp $)
> > > >
> > > > Till Straumann, Stanford/SLAC/SSRL 2002
> > > > See LICENSE file for licensing info
> > > > Trying to synchronize NTP...OK
> > > > Trying to mount 129.57.228.40:/cs/dvl on /boot
> > > > Change Dir to '/boot/iocs/iocpct3/'
> > > > Trying symfile 'BUILTIN', system script 'st.sys'
> > > > Type 'cexpsh.help()' for help (no quotes)
> > > > 'st.sys':
> > > >     # IOC: iocpct3
> > > >     # Location:
> > > >     ld    = cexpModuleLoad
> > > > 0x00107054 (1077332)
> > > >     unld  = cexpModuleUnload
> > > > 0x001079c8 (1079752)
> > > >     lsmod = cexpModuleInfo
> > > > 0x00107fe0 (1081312)
> > > >     rtems_rpc_start_portmapper(50)
> > > > 0x00000000 (0)
> > > >     #
> > > >     chdir ("/boot")
> > > > 0x00000000 (0)
> > > >     < iocs/Gesys-Rtems/misc/mnt_cfg.init
> > > > <'iocs/Gesys-Rtems/misc/mnt_cfg.init':
> > > >       nfsMount("devfs.acc.jlab.org","/cs/dvl","/cs/dvl")
> > > > Trying to mount 129.57.228.40:/cs/dvl on /cs/dvl
> > > > 0x00000000 (0)
> > > >       mkdir("/usr",0777)
> > > > 0x00000000 (0)
> > > >       mkdir("/usr/llapp4",0777)
> > > > 0x00000000 (0)
> > > >       nfsMount("devfs.acc.jlab.org","/usr/llapp4","/usr/llapp4")
> > > > Trying to mount 129.57.228.40:/usr/llapp4 on /usr/llapp4
> > > > 0x00000000 (0)
> > > >     #
> > > >     # Define HOME to op area
> > > >     HOME = "/cs/dvl/iocs/iocpct3"
> > > > 0x008d5ee0 (9264864)
> > > >     chdir (HOME)
> > > > 0x00000000 (0)
> > > >     #
> > > >     ld("rtemsV/ioUtil.obj")
> > > > 0x008d6020 (9265184)
> > > >     ld("rtemsV/miscUtils.obj")
> > > > 0x008d8740 (9275200)
> > > >     ld("rtemsV/ntpclock.obj") && rtemsNtpInitialize(0,0)
> > > > Trying to contact NTP server; (timeout ~1min.)... OK
> > > > NTP synchro code initialized; this is EXPERIMENTAL
> > > > WARNING: High resolution clock not implemented for this CPU
> > > >            please contribute to <ntpNanoclock/pcc.h>
> > > > 0x00000000 (0)
> > > >     setenv("TZ","EST5EDT,M 3.2.0,M 11.1.0",1)
> > > > 0x00000000 (0)
> > > >     tzset()
> > > > 0x00000000 (0)
> > > >     setenv("STARTUP","st.sys",1)
> > > > 0x00000000 (0)
> > > >     setenv("ST_CMD","st.cmd",1)
> > > > 0x00000000 (0)
> > > >     setenv("ENGINEER","withers",1)
> > > > 0x00000000 (0)
> > > >     setenv("LOCATION","Hall A",1)
> > > > 0x00000000 (0)
> > > >     sethostname("devfs",6)
> > > > 0x00000000 (0)
> > > >     ansiTiocGwinszInstall(0)
> > > > 0x00000000 (0)
> > > >     #####< st.cmd
> > > >
> > > > Type 'cexpsh.help()' for help (no quotes)
> > > > Cexp><st.cmd
> > > > 'st.cmd':
> > > >     ## Analogouse to startup.all
> > > >     ## You may have to change test to something else
> > > >     ## everywhere it appears in this file
> > > >     setenv("EPICS_CA_MAX_ARRAY_BYTES","100000")
> > > > 0x00000000 (0)
> > > >     ##############################################
> > > >     # Load Application Executable (that used cexpModuleLoad)
> > > >     ##############################################
> > > >     <startup.iocpct3Apps.obj
> > > > <'startup.iocpct3Apps.obj':
> > > >       # IOC: <IOC_TAG>
> > > >       # APP: iocpct3Apps
> > > >       # First load (objects)
> > > >
> > > >       iocpct3Apps_loaded=1
> > > > 0x00000001 (1)
> > > >
> > > >       # load module for <iocpct3Apps>
> > > >       #cexpModuleLoad("iocpct3AppsO/iocpct3Apps.obj")
> > > >       cexpModuleLoad("iocpct3AppsO/iocpct3Apps")
> > > > Symbol 'getch' already exists
> > > > Symbol 'console_read' already exists
> > > > Symbol 'BSP_install_rtems_irq_handler' already exists
> > > > Symbol 'finite' already exists
> > > > Symbol 'access_modes_assoc' already exists
> > > > Symbol 'herror' already exists
> > > > Symbol '__ieee754_log10' already exists
> > > > Symbol 'rt_ifmsg' already exists
> > > > Symbol 'MOU_Init' already exists
> > > > Symbol 'rtems_termios_dequeue_characters' already exists
> > > > Symbol 'rtems_libio_number_iops' already exists
> > > > Symbol '_Priority_Major_bit_map' already exists
> > > > Symbol 'rtems_gxx_key_delete' already exists
> > > > Symbol 'rip_ctloutput' already exists
> > > > Symbol 'rtems_task_create' already exists
> > > > Symbol '_Event_Sync_state' already exists
> > > > Symbol 'hard_math' already exists
> > > > Symbol '_TOD_Get' already exists
> > > > Symbol '_TOD_Get_uptime' already exists
> > > > Symbol '_ZN10__cxxabiv119__pointer_type_infoD1Ev' already exists
> > > > Symbol 'rtems_task_variable_add' already exists
> > > > Symbol 'in_localaddr' already exists
> > > > Symbol 'rn_addroute' already exists
> > > > Symbol '__fp_lock_all' already exists
> > > > Symbol '__p_time' already exists
> > > > Symbol 'sbflush' already exists
> > > > Symbol '_Bfree' already exists
> > > > Symbol '_ZNKSt9type_info15__is_function_pEv' already exists
> > > > Symbol '_ZNSt13runtime_errorC1ERKSs' already exists
> > > > Symbol 'rtems_libio_semaphore' already exists
> > > > Symbol 'pru_listen_notsupp' already exists
> > > > Symbol 'rtems_kbpoll' already exists
> > > > Symbol 'rewind' already exists
> > > > Symbol '_timezone' already exists
> > > > Symbol 'bind' already exists
> > > > Symbol '_Dual_ported_memory_Manager_initialization' already exists
> > > > Symbol 'rtems_exception_prologue_13' already exists
> > > > Symbol '_ZNSt10bad_typeidD2Ev' already exists
> > > > Symbol '__cxa_get_exception_ptr' already exists
> > > > Symbol '_Thread_Stack_Free' already exists
> > > > Symbol '_Objects_Get_name_as_string' already exists
> > > > Symbol '_Chain_Get' already exists
> > > > Symbol '__ns_name_ntop' already exists
> > > > Symbol 'tcp_keepinit' already exists
> > > > Symbol 'rtalloc_ign' already exists
> > > > Symbol '__hi0bits' already exists
> > > > Symbol 'printk' already exists
> > > > .
> > > (pages of the same)
> > > > Symbol 'rtems_exception_prologue_17' already exists
> > > > Symbol 'tcp_mssdflt' already exists
> > > > Symbol 'udbinfo' already exists
> > > > Error creating symbol table
> > > > 0x00000000 (0)

--
Sue Witherspoon
Staff Computer Scientist
Accelerator Controls Software
757-269-7579
Thomas Jefferson National Accelerator Facility