IBM AS/400 manual into a, Using, Crtpgm

Binding

Modules

into a

Program

In addition to binding modules together,

you can also bind them

to

se

grams (type *SRVPGM). Service programs allow you to code and maintain mod

separately from the program modules. Common

routines can be created as

programs

and

if

the routine

changes,

the

change

can be incorporated

the service program again. The programs

that

use

these

common routines

have to be recreated. For information on creating service programs see

“Creating

a

Service

Program”

on page 91.

For information on the binding

process

and

the

binder,ILE Conceptsrefer. to

the

Using

the

CRTPGM

Command

The

Create

Program

(CRTPGM)

command

creates

a program

object

from

one

or

more

previously

created

modules

and,

if

required,

one

or

more

service

You can bind modules created by any of

the

ILE

Create

Module

command

CRTRPGMOD,

CRTCMOD,

CRTCBLMOD,

or

CRTCLMOD.

Note: The modules and/or service programs required must have been crea prior to using the CRTPGM command.

Before you create a program object using the CRTPGM command, you shoul

1.Establish a program name.

2.Identify the module or modules, and if required, service programs bind into a program object.

3.Identify the entry module.

You	indicate which module contains the program entry procedure throu
ENTMOD	parameter		of CRTPGM.	The	default is ENTMOD(*FIRST), meaning
that	the	module	containing	the	first program entry procedure found
the	MODULE	parameter is		the	entry module.

Assuming you have only one module with a main procedure, that is, al modules but one have NOMAIN specified, you can accept the default Alternatively, you can specify (*ONLY); this will provide a check that one module has a main procedure. For example, in both of the follow ations you could specify ENTMOD(*ONLY).

¹ You bind an RPG module to a C module without a main() function.

¹You bind two RPG modules, where one has NOMAIN on the control spe ification.

Note: If

you

are binding

more than one ILE RPG

module

with

a

main

dure, then you should specify the

name of

the

module

that y

receive

control

when

the

program

is

called.

You

can

also

speci

*FIRST

if

the

module

with

a main

procedure

precedes

any

othe

modules with main procedures on the list specified for the MO parameter.

4. Identify the activation group that the program is to use.

Specify the named activation group QILE if your program has no spec

requirements

or

if

you

are not sure which group to

use.

In

gener

idea

to

run

an

application

in

its

own activation

group. Therefore, y

to name the

activation

group

after

the

application.

Note

that

the

default

activation

group

for CRTPGM

is

*NEW.

This

means

your

program

will run

in

its

own

activation group,

and

the

activation

82 ILE RPG for AS/400 Programmer's Guide