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C/C++ Internals
Overview
This 3 day class is designed to build on existing knowledge of the
C/C++ product in the z/TPF environment. It will provide
programmers and support staff with the knowledge to debug programs and
identify system errors. The class includes frequent exercises to
reinforce knowledge gained during the lecture sessions.
Audience
TPF staff who require knowledge of the internals and architecture of
the C/C++ product in z/TPF. Students should have a reasonable
understanding of z/TPF. A working knowledge of C/C++ Coding
concepts is desirable.
Student
Numbers
The
maximum recommended student to instructor ratio is 12:1
Objectives
By the end of the course, the delegates will be able, with the aid of
course notes to:
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List the C/C++ register conventions.
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Identify Stack, Heap and Static storage.
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Describe compiler options and their impact on
generated object code.
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Understand various linkage mechanisms used in
C/C++ programs.
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Solve dumps in CSOs
(program and Library)
Course Outline
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Introduction
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Review
existing knowledge
Example programs
Register conventions
Storage classes
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Compiler
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Options
Generated code examples
Code Optimization
Inlining of functions.
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Stacks
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Stack
storage overview
Layout and header file
Allocation and deallocation
Usage
Static Storage - overview
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Linkages
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CSO
Linkages
Assembler Stub linkage
Exporting functions & Classes
Function & Variable Descriptors
Static Stack - In depth
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Heap
Storage
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Allocation
Memory layout
In-use, free & system nodes
Control 75 Dump Example
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Functions
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Passing
parameters - C and C++
Linkage
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Dump
Analysis
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Identifying
variables & parameters
Identifying Failing Instruction
Module map layout
Control 3 Example
Solving dumps in Programs
Solving dumps in Libraries
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