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Linker User Guide

Preface Overview of the Linker Linking Models Supported by armlink Image Structure and Generation Linker Optimization Features Getting Image Details Accessing and Managing Symbols with armlink Scatter-loading Features Scatter File Syntax BNF notation used in scatter-loading description s Syntax of a scatter file Load region descriptions Components of a load region description Syntax of a load region description Load region attributes Inheritance rules for load region address attribut Inheritance rules for the RELOC address attribute Considerations when using a relative address +offs Execution region descriptions Components of an execution region description Syntax of an execution region description Execution region attributes Inheritance rules for execution region address att Considerations when using a relative address +offs Input section descriptions Components of an input section description Syntax of an input section description Examples of module and input section specification Expression evaluation in scatter files Expression usage in scatter files Expression rules in scatter files Execution address built-in functions for use in sc ScatterAssert function and load address related fu Symbol related function in a scatter file AlignExpr(expr, align) function GetPageSize() function SizeOfHeaders() function Example of aligning a base address in execution sp Scatter files containing relative base address loa Linker Command-line Options Linker Steering File Command Reference Via File Syntax

Components of an execution region description

8.4.1 Components of an execution region description

The components of an execution region description allow you to uniquely identify each execution region and its position in the parent load region, and to control what parts of an ELF file are placed in that execution region.

An execution region description has the following components:
  • A name (used by the linker to identify different execution regions).
  • A base address (either absolute or relative).
  • Attributes that specify the properties of the execution region.
  • An optional maximum size specification.
  • One or more input section descriptions (the modules placed into this execution region).
The following figure shows the components of a typical execution region description:
Figure 8-3 Components of an execution region description
Components of an execution region description

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