It seems that some perl versions ignoring any breakpoints set in START phase (may be even in any before the RUN one).

Working on debugger I've encountered a problem: with perl 5.22 all pre-set breakpoints works fine if they set on DB package loading, but in 5.18.2 - absolutely ignored. The only solution i've found for 5.18.2 is to set them only in RUN phase.

I'm sure that they are valid and respective @{::_<filename} allowed me to set them.

Can anyone enlighten me about this situation? Am I right? And what is the background here.

P.S. Seems that GLOBAL_PHASE is not an issue here. Something else...

Same problem with Centos 7 + 5.16

Answer from here:

%{'_<...'} hashes now set breakpoints on the corresponding @{'_<...'} rather than whichever array @DB::dbline is aliased to. perl #119799

In reply to [SOLVED] Breakpoints behaviour in some perl versions by hurricup

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