H-Series Application Migration Guide (H06.03+)

Contents

H-Series Application Migration Guide—429855-006

3. TNS/E Native Architecture Features

TNS/E Native Development Tools (continued)

TNS/E Native Linker and Loader 2-7

Native Object File Tool 2-9

TNS/E Native Mode Debugging Tools 2-9

H-Series Common Run-Time Environment (CRE) Changes 2-15

New Memory Block Functions 2-16

New Memory Allocation Function 2-16

Developing TNS/R Native Programs on H-Series Systems 2-16

Setting Up a Cross-Platform Development Environment on the PC 2-17

3. TNS/E Native Architecture Features

TNS/E Native Process Environment 3-1

TNS/E Native Processes 3-1

Process Attributes 3-2

Process Organization 3-2

Code Segments 3-3

Data Segments 3-4

TNS/E Object File Format 3-5

Signals on H-Series Systems 3-5

Illegal Operation Causes Different Signal in H-Series 3-5

Dynamic-Link Libraries (DLLs) 3-5

TNS/R Non-PIC Migration Considerations 3-7

TNS/R PIC Migration Considerations 3-8

4. General Programming Issues

Preparing Programs for Migration 4-1

Maintaining Common Source Code for TNS/R and TNS/E Native Compilers 4-1

Misaligned Data Causes Performance Loss 4-2

Misalignments in TNS/R Native Programs 4-2

Misalignments in TNS/E Native Programs 4-3

Detecting Data Misalignments 4-3

Adjusting For Increased DCT Limits 4-3

Optimizing on TNS/E Might Expose Errors 4-5

Possible Programming Errors 4-5

Examples of Programming Errors 4-6

Creating Unstructured Enscribe Files Might Require Program Changes 4-6

DDL Dictionary Conversion Required 4-7

setjmp Buffers Have Different Size and Alignment Requirements 4-7