ARM Compiler toolchain Using the Linker - ARM Information Center

8.8 What is a root region?
8.8.1 See also
Using scatter files
A root region is a region with the same load and execution address. The initial entry point of the
image must be in a root region. If the initial entry point is not in a root region, the link fails and
the linker gives an error message.
Example 8-3 Root region with the same load and execution address
LR_1 0x040000 ; load region starts at 0x40000
{ ; start of execution region descriptions
ER_RO 0x040000 ; load address = execution address
{
* (+RO) ; all RO sections (must include section with
; initial entry point)
}
... ; rest of scatter-loading description
}
Tasks
• Creating root execution regions on page 8-14
• Using the FIXED attribute to create root regions on page 8-17
• About placing ARM C and C++ library code on page 8-47.
Concepts
• The image structure on page 4-3.
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