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perlrun/debguts: Connect -dt and PERL5DB_THREADS a bit better #23274

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Merged
merged 1 commit into from
May 14, 2025
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perlrun/debguts: Connect -dt and PERL5DB_THREADS a bit better #23274

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6 changes: 6 additions & 0 deletions pod/perldebguts.pod
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,12 @@ Perl inserts the contents of C<$ENV{PERL5DB}> (or C<BEGIN {require

=item *

If the C<-dt> switch is supplied, C<PERL5DB_THREADED=1> is set in the
environment. C<perl5db.pl> or your custom debugger can use this to
enable threading support.

=item *

Each array C<@{"_<$filename"}> holds the lines of $filename for a
file compiled by Perl. The same is also true for C<eval>ed strings
that contain subroutines, or which are currently being executed.
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5 changes: 3 additions & 2 deletions pod/perlrun.pod
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Expand Up @@ -365,8 +365,9 @@ X<-d> X<-dt>
=item B<-dt>

runs the program under the Perl debugger. See L<perldebug>.
If B<t> is specified, it indicates to the debugger that threads
will be used in the code being debugged.
If B<t> is specified, C<PERL5DB_THREADED=1> is set in the environment
to indicate to the debugger that threads will be used in the code
being debugged.

=item B<-d:>I<MOD[=bar,baz]>
X<-d> X<-dt>
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