How to map function name to coderef?

[Anonymous Monk]

Oh ye who hold all Perl wisdom!

My Perl foo is sufficient to understand the following:

#!/bin/env perl
use strict;
use warnings;
my $coderef = \&f;
print &$coderef, $/;
sub f {
    return 1;
}

...which simply outputs upon execution:

1

Yet, what I would really like is to map a string to the code reference of the function itself -- something similar to the following (syntax is incorrect...):

my $s = 'f';
print $s(), $/;

...which would give similar output as the preceding code.

Those that bear all ye knowledge, what is the syntactic incantation?

Thanks!