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C
& C++ for Coverage and Operations
Overview
This
course is designed to give Coverage and Operations
staff a detailed introduction to C & C++ in the
TPF Environment.
Staff are often required to work with and debug
newer programs written in C or C++ without having
taken any formal programming training in these
languages. Students
will be taken through the layout of C and C++
programs, the structure of the language, compilation
units and linkage, header files and Dump Analysis.
This course is not designed to teach
programming itself, but enable staff to understand and
interpret existing programs.
It is a practical 5 day course with lectures,
interspersed with exercises to consolidate the
knowledge gained.
Pre-requisites
Prior
Mainframe Assembler and TPF knowledge is required.
Audience
Any
staff who are required to work with exisiting programs
written in ISOC or C++ for the TPF Platform..
Objectives
By the end of the course, the delegates will be
able, with the aid of course notes to:
·
Understand the layout and structure of C
& C++ programs in TPF.
·
Identify header files used within
compilation units.
·
Understand the use of the Build Script
for building DLMs and DLLs.
·
Use the ISOC Build Script information
and the listing to identify the source code
instruction in error.
·
Use the Listing to identify variables
held in registers vs the stack.
·
Locate function stacks within a dump and
identify variable values within the stack.
·
Identify static variables and global
variables in the static stack.
Course
Outline
| Introduction |
Objectives
Terminology |
| Program
Structure |
Data
Types, variables, enums, typedefs
Decision Making
Loops
Functions
Compilation Units
The DLM and DLL
C vs C++
C++ - Classes and Methods overview |
| Listings |
Interpreting
Pseudo Assembler
Optimisation and its uses
Function Prologs and Epilogs
Understanding the Stack |
| DLM
& DLL |
Components
Build Scripts (makefile)
Understanding the output from Build Process |
| PreProcessor |
#pragma
options
Understanding Conditional Compilations |
| Header
Files |
Standard
TPF Header Files
DSect vs Header File
#Pragma Pack and _Packed
Pitfalls |
| Optimisation |
Register
vs Stack Usage
Inlining |
| Assembler |
Interfacing
with existing programs
TPF_regs structure |
| Linkages |
Identify
different linkage types
Function and Variable descriptors
Static Storage – in depth |
| Program
Interfaces |
C
to C/C++
C to Assembler
Assembler to C
Parameter List |
| Dump
Analysis |
Review
existing knowledge
Example Ctl3 and Ctl75
ISOC Dump Tags
The ISOC Task Control Area
Function stacks and their layout
Identifying variable and parameter values
Heap Storage and its Layout
DLM and DLL Dump Analysis |
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