Perl — log every subroutine

• Log::ger::For::Class — Add logging to class
• Debug::Trace
• Debug::LTrace
• Log::Trace — Provides a unified approach to tracing
• Thorium::Roles::Trace [2011]

Targeted injection:

• Log::Localized

'Trace'-focused modules that can be controlled to only include specific packages or calls:

• Devel::TraceMethods [2005]
• Data::Dump::Trace->autowrap($class)
• Devel::Trace::Fork
• Debug::Trace
• Devel::DumpTrace
• OpenTelemetry
• Devel::CallTrace — Intended to be 'extended' in the OO sense of the word.