You can get more information by calling caller in list context

Actually (caller)[0] does call it in list context. The number of arguments to caller matters, though: 

$ perl -wle 'sub foo { my @l = caller(); return scalar @l }; print foo
+()'
3
$ perl -wle 'sub foo { my @l = caller(0); return scalar @l }; print fo
+o()'
10

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In reply to Re^2: Identify the package a subroutine is being called from by moritz
in thread Identify the package a subroutine is being called from by Herkum

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