This class is defined in metasm/os/gnu_exports.rb
It defines an EXPORT constant, a Hash, whose keys are the standard linux API symbol names, and values are the library name where you can find this symbol.
The equivallent for windows is WindowsExports
The main usage of this class is the automatic generation of the core/ELF.txt dynamic tag DT_NEEDED from the external symbols referenced by a binary during compilation.
This is done in the automagic_symbols method.
The current version holds the symbols of the debian glibc, from libc.so.6 and libdl.so.2.
Ruby symbols are also defined, from libruby1.8.so.1.8.