GV is a "glob", short for "typeglob", as in "a bunch of types". They are used as symbol table entries, although they can exist outside the symbol table, so they aren't necessarily global. open my $fh, ... populates $fh with a reference to a "non-global" glob.

In reply to Re^2: Where to find info on low level perl internals names? by ikegami
in thread Where to find info on low level perl internals names? by Anonymous Monk

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