ARM Compiler toolchain Using the Linker - ARM Information Center

Features of the Base Platform linking model
Example 11-4 Invalid scatter file example for a load region that requires a PLT section
# This is not valid. All execution regions containing code are marked OVERLAY.
LR_NEEDING_PLT 0x8000
{
ER_1 +0 OVERLAY
{
*(+RO)
}
ER_2 +0
{
*(+RW)
}
}
• If a load region requires a PLT section, then the PLT section must be placed within the
load region. By default, if a load region requires a PLT section, the linker places the PLT
section in the first execution region containing code. You can override this choice with a
scatter-loading selector.
If there is more than one load region containing code, the PLT section for a load region
with name name is .plt_name. If there is only one load region containing code, the PLT
section is called .plt.
The following examples show valid and invalid scatter files that place a PLT section:
Example 11-5 Valid scatter file example for placing a PLT section
#This is valid. The PLT section for LR1 is placed in LR1.
LR1 0x8000
{
ER1 +0
{
*(+RO)
}
ER2 +0
{
*(.plt_LR1)
}
}
LR2 0x10000
{
ER1 +0
{
*(other_code)
}
}
Example 11-6 Invalid scatter file example for placing a PLT section
#This is not valid. The PLT section of LR1 has been placed in LR2.
LR1 0x8000
{
ER1 +0
{
*(+RO)
}
}
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