abap debugger

Please note that we are recording this live session!

Welcome to your WebEx Live Session!

The New ABAP Debugger has grown up

Session start: 2 pm

Approx. duration: 90 min

Trainer: Christoph StoeckBoris Gebhardt

SAP AG 2003 Title of Presentation, Speaker Name / 2

Content

Motivation

Architecture & Handling

UI Basics

New ABAP Frontend Editor

Variable Display & Navigation

Comparing Variables (Diff-Tool)

Breakpoints & Watchpoints

Debugger Framework

Summary, Open Points & Outlook

Q&A


Content

Motivation


UI Basics





Debugger Framework


Q&A


Motivation – The Classic Debugger

We have already a powerfulABAP debugger.

Why do we need a newone ??


Motivation – The New ABAP Debugger

… Therefore


Current Status – Classic Debugger

Classic Debugger

Technology Debugger and debuggee run in the same (internal) session Debugger dynpros placed “in-between”

Consequences Not all ABAP code can be debugged (no RPERFs: Conversion / Field exit)) Not free of side effects (F1, F4 help, list output) Implementation of new features not always straight-forward No chance to use modern UI techniques (no ABAP allowed in the debugger !)

We need a new ABAP debugger technology


Goals – New ABAP Debugger

Higher productivity for development & support

using ABAP debugger

More robust debugger architecture (no side effects)

Possibility to implement new features (e.g. a diff tool for internal tables) faster and with less risks

More flexible & extensible state-of-the-art debugger UI

Use two separated sessions for the debugger and the application


Content

Motivation


UI Basics





Debugger Framework


Q&A


Two Process Architecture

Session 1 - Debuggee

ABAP VM

The New Debugger is attached to an “external session”

Session 2 - Debugger

UI

Debugger Engine/h


Two Process Architecture - Consequences

• The New Debugger is started in a separated session, after prompting “/h”• The debuggee is inactive while the debugger is active.

Advantage: During debugging you still see your last screen input

/h



• The debugger is still available but inactive, when the program finished• The debugger is not closed as long as the debuggee session is alive !• You may detach the debugger by prompting “/hx” in the debuggee session

Advantage: The debugger with all your settings, variables, breakpoints,…is always available, when you restart debugging !



Demo



Classic Debugger New Debugger

Subject that is being debugged

Internal session (roll area) ( breakpoints ) UI settings tool content, e.g. variableslost in new roll area

External session (GUI window) breakpoints UI settings tool content, e.g. variablesNOT lost-> /hx closes debugger-> option: close automatically

Window where the debugger is presented in

Same window like application

Separate window last input screen visible focus follows active window

Both debugger: differences in handling


Content

Motivation


UI Basics





Debugger Framework


Q&A


UI Basics

Demo


New Debugger UI – Main Parts

Source line / SY-FieldsControl Area

Process Info

Desktops

Tools


New Debugger UI – Desktops

The New Debugger provides:• Three user specific desktops, which you can customize and save as your favorite debugger environment• Seven standard desktops, which should cover most of the common working conditions in the debugger:

•Standard: Stepping through the code (Editor, Stack, Quick Watch)•Structures: Display structures•Tables: Display tables•Objects: Display objects•DetailDispls: Display strings , simple fields …•Break-/Watchpoints: Maintain your break-/watch-/checkpoints•Diff Compare Variables

Save current layout of the user specific desktops.The customizing of the standard desktops is NOT saved !

User specific desktops Standard desktops


Customize The New Debugger UI – Customize layout

Layout customizing can be also done via context menu.

With the standard “Back” button (F3) you can “Undo” all your layout changes

Close ToolCreate ToolExchange ToolFull screen modeMaximize horizontallySwap ToolServices of the tool

Change size


Customize The New Debugger UI – Tools

You may create up to 4 instances of one tool on one desktop. ( e.g. to compare 4 internal tables )

Available Tools: New with 7.0


Customize The New Debugger UI – Tool Services

All features of a tool can be accessed via the tool service button…

…or the context menu


Content

Motivation


New ABAP Debugger UI Basics





Debugger Framework


Q&A


ABAP Frontend Editor

Main features•Syntax coloring

•Block marking / folding

•Display variable content & type

•Easy BP handling

New ABAP Frontend Editor will be part of standard 6.40 GUI within the next month.

But for colleagues who can‘t wait an installer is availble:

\\pwdf1018\d031288\ab4\setup.vbs

FAQ’s: OSS note 812186


ABAP Frontend Editor

Demo


ABAP Frontend Editor – Source Display features

•Syntax coloring

•Block marking / folding

•Display scope

•Convenient vertical and horizontal scrolling

•Powerful search functionality

•Control (layout, colors, …) can be customized


ABAP Frontend Editor – Display Variable Content

Mouse pointer hovers over variable: -> Variable content and type is

displayed in a quick infowindow.

In the control option dialog you can disable the quick info or adapt the reaction time.


ABAP Frontend Editor – Set Breakpoints

Set / Delete breakpoints by clicking in the left (breakpoint) column .

Double-Clicking in the code will no longer set or delete breakpoints.Deactivate /Activate the breakpoint via context menu.


ABAP Frontend Editor – Context Menu

Editor Context Menu contains:

• local control features like “Find”,“Outlining”

• Debug features like maintain BP, Jump to statement …)

• Other services including layout customizing


Content

Motivation


UI Basics





Debugger Framework


Q&A


Variable Display – New ABAP Debugger Version 6.40

Variable Fast Display

Navigation to Detail View


Variable Display – New ABAP Debugger Version 6.40


Variables & Navigation – Version 7.0

Demo


Variable Display I

Quick info in ABAP Front-end Control

Variable Fast Display

Detail View


Variable Display II

Data Explorer


Variable Display: Globals and Locals

Globals and locals can be activated in the option dialog


Download Parameters To Function Builder

The current parameters of a function module can be stored in the function builder test framework.

Function builder test data dictionary


Loaded Programs - Globals

Display all global variables of the loaded programs


Variable Navigation: Source = Editor

Double click onvariable


Variable Navigation: Source = Variable fast display

Double click onvariable


Content

Motivation


UI Basics





Debugger Framework


Q&A


Diff Tool

Diff tool: Compare two compatible ABAP variables: e.g. two tables, objects, structures, strings,…

Diff tool provides differences concerning type and value.For value differences the ABAP IF semantic is used.

Why is XLINE <> XLINE2?Find the difference !!

(XLINE and XLINE2 are only 2000 bytes long …)

Use the brand new debugger Diff tool !



Demo


Diff Tool – Navigation To Connected Detail Views


Diff Tool – Start New Diff For Subcomponents

For subcomponents of type reference or internal table no “deep diff” is executed. But in the corresponding result lines you find again a diff button to start a comparison for these sub components.You may use the history tab to get back to the first result list.


Content

Motivation


UI Basics





Debugger Framework


Q&A


Breakpoints

How many different breakpoint kinds do exist ?

Debugger breakpoints• scope: debugging session• set in : debugger

Session breakpoints• scope: logon session• set in : development workbench

User (external) breakpoints• scope: all logon sessions (for one user on one server)• set in : development workbench


Breakpoints

Debugger

Debugger

Debugger

Logon Session 3

Debugger

Debugger

Debugger

Logon Session 2

Debugger

Debugger

Debugger

Logon Session 1

All logon sessions of one user on one server


Breakpoints – Create A Breakpoint

Create/Delete a breakpoint in the Editor by clicking on the breakpoint column

F4 help on• classes / methods• function modules• …


Breakpoints – Maintain Breakpoints

Create/Delete/Activate/Deactivate breakpoints

Specify how often the breakpoint shall be skipped before stopping


Breakpoints – New Debugger

Demo


Watchpoints

Check content changes of ABAP variables

• specify variable• stop on change of variable • all global, local variables possible• including internal tables• not possible: debugger symbols pointing into internal tables

e.g.: “itab[1]-comp”

• specify variable & condition• stop when variable changes AND condition is true• condition restricted to two operands and 1 operator• built-in functions ( “lines( )” and “strlen( )” ) possible

e.g.: “sy-subrc <> 0” or “strlen( string ) > 10”

• can be activated / inactivated


Watchpoints

When stopping at a watchpoint

• value of “old” variable is available (reference to WP clone)• Diff-tool can be used to be guided to difference(s)

WP clone accessibleConnection to diff-tool


Breakpoints – New Debugger

Demo


Content

Motivation

New ABAP Debugger Core Basics






Debugger Framework


Q&A


Debugger Tools – New Tools - Architecture

Debugger EngineADI

Debugger UI framework

TOOL_FACTORY

OK_CODE_HANDLER

SUBSCREEN_HANDLER

Tool interface

Function group- screens

Tool classIF_TPDA_TOOL

Stack Editor Breakpoints

Tools

…

The New ABAP Debugger UI frameworks makes it very easy to “plug in” new tools.


Debugger UI Framework – Reuse In Other Applications

The New ABAP Debugger UI can be reused by other applications:

E.g. the new ABAP Runtime Analysis uses the Debugger UI Framework


Content

Motivation







Debugger Framework


Q&A


New ABAP Debugger – Features 7.00

Match and extent functionality of Classic Debugger Insert, delete rows of internal tables Watchpoints “External” debugging

RFC BSP: view or single step on both: BSP and ABAP-source WebDynpro ABAP Attach/Batch debugging: use “attach” in sm50 or “jdbg” in sm37 Update debugging ITS based services

Memory Analysis Tool ( Integration of Memory Inspector ) Miscellaneous

Explicit start of garbage collector Explicit DB commit / DB rollback Exception handling

Navigate to source position, where exception was raisedOption: create exception object always

not possible with Classic ABAP Debugger



New functionality ( New Tools ) Integration of New Edit Control

Syntax highlighting Tool tip on hovering for variables content

Diff-Tool Easily navigate through differences of internal tables, structures, etc …

Data Explorer Navigation through and display of data object graphs

Loaded Programs Overview of all loaded programs Identification of program groups and program heads Displays all global data of a specified loaded programs

Dynpro-Analysis dynpro and container tree dynpro and container properties

System areas : internal



New functionality ( miscellaneous ) Variable Fast Display

Display of all global variables Display of all local variables

Identification of procedure interfaceSave function module parameters for se37 test environment

Stack Complete Dynpro & ABAP Stack

Save debugging sessionLayoutBreakpointsOptions and settings


Outlook: 7.1

WebDynpro support Breakpoints

Conditions BPs on program change (SY-REPID problem) BPs in dynpro flow logic BPs on objects

Macro debugging Advanced “external debugging”

SHO: automated area creationESI

“Simple Transformation” debugging Changing long fields Stack of calling internal sessions Statement tracing

Your input is welcome:

http://bis:1080 -> ABAP Request Portal

http://bis:1080/


Content

Motivation







Debugger Framework


Q&A


Q&A

Questions?


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abap debugger