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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

Examples of module and input section specifications

8.5.3 Examples of module and input section specifications

Examples of module_select_pattern specifications and input_section_selector specifications.

Examples of module_select_pattern specifications are:
  • * matches any module or library.
  • *.o matches any object module.
  • math.o matches the math.o module.
  • *armlib* matches all C libraries supplied by ARM®.
  • "file 1.o" matches the file file 1.o.
  • *math.lib matches any library path ending with math.lib, for example, C:\apps\lib\math\satmath.lib.
Examples of input_section_selector specifications are:
  • +RO is an input section attribute that matches all RO code and all RO data.
  • +RW,+ZI is an input section attribute that matches all RW code, all RW data, and all ZI data.
  • BLOCK_42 is an input section pattern that matches sections named BLOCK_42. There can be multiple ELF sections with the same BLOCK_42 name that possess different attributes, for example +RO-CODE,+RW.
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