3.1.2. Load view and execution view of an
image
Image regions are placed in the system memory map at load
time. Before you can execute the image, you might have to move some
of its regions to their execution addresses and create the ZI output
sections. For example, initialized RW data might have to be copied
from its load address in ROM to its execution address in RAM.
The memory map of an image has the following distinct views (as
shown in Figure 3.2).
- Load view
Describes
each image region and section in terms of the address it is located
at when the image is loaded into memory, that is, the location before the
image starts executing.
- Execution view
Describes
each image region and section in terms of the address it is located
at while the image is executing.
Table 3.1 compares
the load and execution views.
Table 3.1. Comparing load and execution views
| Load | Description | Execution | Description |
|---|
| Load address | The address where a section, or region is loaded
into memory before the image containing it starts executing. The
load address of a section or a non-root region can differ from its
execution address. | Execution address | The address where a section or region is located
while the image containing it is being executed |
| Load region | A region in the load address space. | Execution region | A region in the execution address space |
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