Everhart,Glenn
From:	Jim Lahman [jlahman@cyberdrive.net]
Sent:	Monday, April 20, 1998 8:33 PM
To:	Info-VAX@Mvb.Saic.Com
Subject:	Re: VAX ALPHA C migration share problems
Here's a copy of my options file I have to update an  installed shareable
image:

Symbol_Vector=(CTS_LOCCOM=PSECT)
PSECT_ATTR=CTS_LOCCOM,shr

and here's a copy of my header file:

#ifdef RESERVE_SPACE
#define GLOBAL 
#else
#define GLOBAL extern
#endif

#pragma extern_model common_block shr

struct _loccom
{
    CTS_LOCGC location[MAX_LOC];
    long numLoc;
};

GLOBAL struct _loccom cts_loccom;

this header file is included in a C file all by itself which is compiled
and linked as follows as shown in this command procedure:

$!
$! Generated by Jim Lahman to compile and link msgcom.h
$!
$! DO_CC  := cc/define=VMS/share_globals/extern_model=common_block
$ DO_CC  := cc
$ DO_LINK := link/exe=cts_cmn:cts_loccom.EXE/shareable/map/full
$!
$ DO_CC CTS_LOCCOM.C
$ DO_LINK CTS_LOCCOM.OBJ, cts_loccom.opt/opt

I install all shareable images with the /write/share/open/head qualifiers


-- 
jpl
jlahman@cyberdrive.net

I have nothing to offer but blood, toil, sweat and tears.
   - Winston Churchill 


| In article <353B2910.7EB5B9B8@iies.es>, mcm <mcm@iies.es> writes:
| : I'm making the migration for a C application from VAX VMS to ALPHA VMS.
| 
|   "OpenVMS VAX" and "OpenVMS Alpha".
| 
| : I need to compile, link and install a shareable image in a ALPHA
| :OPENVMS machine, but i have problems.
| :
| : I can read the data at the share common but i canīt update them.
| 
|   What errors are you getting?  Access Violations (ACCVIOs)?
| 
|