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RealView Linker and Utilities Guide
Preface Introduction The Linker Command Syntax About armlink
Input to armlink Output from armlink Ordering command-line options Specifying command-line options with an environmen armlink command syntax Accessing help and information Project template options Specifying an input file list Controlling linker behavior Specifying the output type and the output filename Specifying memory map information for the image Controlling debug information Controlling image contents Controlling veneer generation Specifying Byte Addressing mode Generating image-related information Controlling linker diagnostics Using a via file Miscellaneous Using the Basic Linker Functionality Accessing Image Symbols Using Scatter-loading Description Files Using the ARM Librarian Using fromelfOutput from armlink
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| Home > The Linker Command Syntax > About armlink > Output from armlink | |||
Output from a successful invocation of armlink is one of the following:
an executable image in ELF format
a partially-linked object in ORC_Keil_OBJECT format
a relocatable object in ORC_Keil_OBJECT format.
For simple images, ELF executable files contain segments that are approximately equivalent to RO and RW output sections in the image. An ELF executable file also has ELF sections that contain the image output sections.
You can use fromelf to convert an executable image to other file formats. See Chapter 7 Using fromelf for more information.
When you use the linker to construct an executable image, it:
resolves symbolic references between the input object files
extracts object modules from libraries to satisfy otherwise unsatisfied symbolic references
sorts input sections according to their attributes and names, and merges similarly attributed and named sections into contiguous chunks
removes unused sections
eliminates duplicate common groups and common code, data, and debug sections
organizes object fragments into memory regions according to the grouping and placement information provided
assigns addresses to relocatable values
generates an executable image.
See Specifying the image structure for more information.
When you use the linker to construct a partially‑linked object, it:
eliminates duplicate copies of debug sections
minimizes the size of the symbol table
leaves unresolved references unresolved
merges Comdat groups
generates an object that can be used as an input to a subsequent link step.
Note
If you use partial linking, you cannot refer to the component objects by name in a scatter‑loading description file.
| Copyright © 2007 ARM Limited. All rights reserved. | ARM DUI 0377A |
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