 RealView Linker and Utilities Guide | |
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RealView Linker and Utilities Guide
Preface Introduction The Linker Command Syntax Using the Basic Linker Functionality Accessing Image Symbols
ARM/Thumb synonyms Accessing linker-defined symbols Region-related symbols Section-related symbols Importing linker-defined symbols Accessing symbols in another image Creating a symdefs file Reading a symdefs file Symdefs file format Hiding and renaming global symbols Steering file format Steering file commands Using $Super$$ and $Sub$$ to override symbol defin Using Scatter-loading Description Files Using the ARM Librarian Using fromelfARM/Thumb synonyms
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The linker enables multiple definitions of a symbol to coexist in an image, only if each definition is associated with a different processor state. armlink applies the following rules when a reference is made to a symbol with ARM/Thumb synonyms:
B,BL, orBLXinstructions to a symbol from ARM state resolve to the ARM definition.B,BL, orBLXinstructions to a symbol from Thumb state resolve to the Thumb definition.
Any other reference to the symbol resolves to the first definition encountered by the linker. In this case, armlink displays a warning that specifies the chosen symbol.
| Copyright © 2007 ARM Limited. All rights reserved. | ARM DUI 0377A |
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