6.11. Including library members
An object file may contain references to external objects
(functions and variables). The linker attempts to resolve these
references by matching them to definitions found in other object
files and libraries. A library is a collection of AOF files stored
in an ARM Library Format file. Usually, at least one library file
is specified in the input list. The important differences between
object files and libraries are:
each object file in the input list appears in the
output unconditionally, whether or not anything refers to it
a member from a library is included in the output
if, and only if, an object file or an already-included library member
makes a non-weak reference to it.
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