Controls the veneer layout when
--largeregions mode is on.
is one of:
The linker places veneers to ensure they can be reached by the largest amount of
sections that use the veneer. Veneer reuse between execution regions is permitted.
This type minimizes the number of veneers that are required but disrupts the structure
of the image the most.
Collects veneers from a contiguous range of the execution region
Places all the veneers generated from that range into a pool.
Places that pool at the end of the range.
A large execution region might have more than one range and therefore more than one
pool. Although this type has much less impact on the structure of image, it has fewer
opportunities for reuse. This is because a range of code cannot reuse a veneer in
another pool. The linker calculates the range based on the presence of branch
instructions that the linker predicts might require veneers. A branch is predicted to
require a veneer when either:
You can set the size of the contingency with the
--veneer_pool_size= option. By default the
contingency size is set to 102400 bytes. The
option provides information on how the linker has placed veneer pools.
You must use
--largeregions with this option.