topic Re: Creating a dump file from a C program in Operating System - OpenVMS

Creating a dump file from a C program

omarf — Mon, 27 Mar 2006 18:33:09 GMT

Hi
How do we create a .DMP file from a C program. My program is basically a kill program and I want to add the functionality to create a dump file. Could you please give an example how to do that...
Thanks...

Re: Creating a dump file from a C program

Volker Halle — Tue, 28 Mar 2006 02:39:00 GMT

Omarf,

if you want your C program to create a process dump of itself, use LIB$STOP(SS$_IMGDMP);

To force a process dump of another process, you might have to spawn the DCL command:

$ STOP/ID=xxx/DUMP=NOW

Note that this command creates a process dump, but does not terminate the process. So if you then want to 'kill' the process, you would have to call $FORCEX or $DELPRC, after allowing enough time for the process dump to be written.

Volker.

Re: Creating a dump file from a C program

omarf — Tue, 28 Mar 2006 18:39:03 GMT

Thanks Guys
I did it using sys$sigprc with a ss$_imgdmp and then did a lib$signal. All works
Cheers

Re: Creating a dump file from a C program

Ian Miller. — Wed, 29 Mar 2006 05:26:27 GMT

Re: Creating a dump file from a C program

Volker Halle — Fri, 25 Aug 2006 08:24:22 GMT

Sorry.

I have been made aware, that I have given a wrong command to be used to force a process dump.

The correct command is:

$ SET PROC/DUMP=NOW/ID=

The /DUMP=NOW qualifier has been added in OpenVMS Alpha V7.3.

Volker.