C<foreach my $x ...> in pseudo-fork()ed process may diddle

parent's memory; fix it by keeping track of the actual pad
offset rather than a raw pointer (this change is probably also
relevant to non-ithreads case to avoid fallout from reallocs of
the pad array, but is currently only enabled for the ithreads
case in the interests of minimal disruption to existing "well
tested" code)

p4raw-id: //depot/perl@7858

1 files changed, 7 insertions, 0 deletions

diff --git a/perlapi.c b/perlapi.c
index a2e73e4bd0..02c5aa3bca 100644
--- a/perlapi.c
+++ b/perlapi.c
@@ -2615,6 +2615,13 @@ Perl_save_re_context(pTHXo)
     ((CPerlObj*)pPerl)->Perl_save_re_context();
 }
 
+#undef  Perl_save_padsv
+void
+Perl_save_padsv(pTHXo_ PADOFFSET off)
+{
+    ((CPerlObj*)pPerl)->Perl_save_padsv(off);
+}
+
 #undef  Perl_save_sptr
 void
 Perl_save_sptr(pTHXo_ SV** sptr)