Enables and disables Virtual Function Elimination (VFE) in C++.
VFE enables unused virtual functions to be removed from code. When VFE is enabled, the
compiler places the information in special sections with the prefix
.arm_vfe_. These sections are ignored by linkers that are not VFE-aware,
because they are not referenced by the rest of the code. Therefore, they do not increase the
size of the executable. However, they increase the size of the object files.
Objects that are being linked into shared objects should not contain VFE information.
--no_vfe when compiling these objects.
This option is effective only if the source language is C++.
The default is
--vfe, except for the case where legacy object files
compiled with a pre-RVCT v2.1 compiler do not contain VFE information.