IBM AS/400 manual Setting and Removing Unconditional Thread Breakpoints

Setting and Removing Breakpoints

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		Display Module		Source
Program:	DEBUGEX	Library:	MYLIB	Module:	DBGEX

84*---------------------------------------------------------------

85* Move 'a's to the data structure DS2. After the move, the

86* first occurrence of DS2 contains 10 character 'a's.

87*---------------------------------------------------------------

88	C	MOVE	*ALL'a'	DS2
89

90*---------------------------------------------------------------

91* Change the occurrence of DS2 to 2 and move 'b's to DS2,

92* making the first 10 bytes 'a's and the second 10 bytes 'b's

93*---------------------------------------------------------------

94	C	2	OCCUR	DS2
95	C		MOVE	*ALL'b'	DS2
96

97*---------------------------------------------------------------

98* Fld1a is an overlay field of Fld1. Since Fld1 is initialized

More...

Debug . . . _________________________________________________________________

_______________________________________________________________________________

F3=End program		F6=Add/Clear breakpoint		F10=Step	F11=Display variable
F12=Resume		F17=Watch variable	F18=Work with		watch	F24=More keys
Breakpoint	added	to line 88.

—

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Figure 81. Setting an Unconditional Job Breakpoint

5. After the breakpoint is set, press F3 (Exit) to leave the Display display. The breakpoint is not removed.

6.Call the program. When a breakpoint is reached, the program stops a Display Module Source display is shown again, with the line containing breakpoint highlighted. At this point you can step through the progr resume processing.

Setting and Removing Unconditional Thread Breakpoints

You can set or remove an unconditional thread breakpoint by using:

¹ The Work with Module Breakpoints display

¹ The TBREAK debug command to set a thread breakpoint in the current

¹ The CLEAR debug command to remove a thread breakpoint

To

set

an

unconditional

thread

breakpoint

using

the

Work

with

Module

Br

display:

¹

Type

1

(Add)

Optin

thefield.

¹

In theThread field, type the

thread

identifier.

¹

Fill

in

the

remaining

fields

as

if it

were

an

unconditional

job

brea

¹

Press Enter.

Note:

The Thread field

is displayed when

the

DEBUG

option

on

the

SPAWN

command

is

greater

than

or

equal

to one.

The

TBREAK

debug

command

has

the

same

syntax as the BREAK debug

command. Where

the BREAK

debug

command

sets

a

job

breakpoint

at

the

s

position

in

all

threads,

the

TBREAK

debug

command

sets a

thread breakpo

single

thread

—

the

current

thread.

180 ILE RPG for AS/400 Programmer's Guide