The caller function will let you do that.

Example: 

sub foo {
    my $calling_sub = (caller 1)[3];
    $calling_sub = 'the main block' if !defined $calling_sub;
    print "called from: $calling_sub\n";
}

sub bar {
    foo();
}

bar();  # prints: called from: main::bar
foo();  # prints: called from: the main block

[download]

Personally, when I need additional log information depending on context, I prefer to use explicit parameters for the logging function. This way, I have more control on the logging protocol, and the individual context tags at each logger call make it easy to map log messages back to the related pieces of code without exposing program internals in the logs. I do not depend on a one-to-one relationship between subroutine names and things worth while to log, either.

Example: 

# using Sys::Syslog log levels
sub open_db {
    my $dbname = shift;
    # ...
    if (defined $dbh) {
        log_this(LOG_NOTICE, 'OPEN_DB', $dbname, 'db connection establ
+ished');
    }
    else {
        log_this(LOG_ERR, 'OPEN_DB_NOK', $dbname, 'db connection faile
+d');
    }
}

[download]

In reply to Re: Reference sub name by martin
in thread Reference sub name by ewhitt

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