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machines and the function stack MIPS
based computers use an unusual stack frame, which sometimes requires GDB
to search backward in the object code to find the beginning of a function.
To improve response time
(especially for embedded applications, where GDB may be restricted to a
slow serial line for this search) you may want to limit the size of this
search, using one of the following commands.
set heuristic-fence-post limit
Restrict GDB to examining
at most limit bytes
in its search for the beginning of a function.
A value of 0
(the default) means there is no limit. However, except for 0,
the larger the limit the more bytes heuristic-fence-post
must search and therefore the longer it takes to run.
show heuristic-fence-post
Display the current limit.
These commands are available
only when GDB is configured for debugging programs on MIPS processors.