Re: How perl debugger breakpoint works?

When compiling code with the debugger active, Perl replaces what would normally be nextstate ops with dbstate ops. The latter check for breakpoints when encountered. See pp_dbstate in pp_ctl.c.

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Re^2: How perl debugger breakpoint works? by PerlOnTheWay (Monk) on Sep 06, 2011 at 02:54 UTC
Where does Perl replace `nextstate` with `dbstate`? When I search `OPf_SPECIAL`,there're too many stuff popped up..	[reply] [d/l] [select]
Re^3: How perl debugger breakpoint works? by chromatic (Archbishop) on Sep 06, 2011 at 07:36 UTC
See the `newSTATEOP` function in op.c. The optree generator calls this function during compilation.	[reply] [d/l]