Create a per-interpeter debug scratchpad container

and use that for the regexec debugging.

p4raw-id: //depot/perl@13110

1 files changed, 12 insertions, 0 deletions

diff --git a/perl.h b/perl.h
index e816534fd5..e0250aec41 100644
--- a/perl.h
+++ b/perl.h
@@ -3106,6 +3106,18 @@ enum {		/* pass one of these to get_vtbl */
 #define RsPARA(sv)    (SvPOK(sv) && ! SvCUR(sv))
 #define RsRECORD(sv)  (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
 
+#ifdef DEBUGGING
+/* A struct for keeping various DEBUGGING related stuff
+ * neatly packed.  Currently only scratch variables for
+ * constructing debug output are included. */
+struct perl_debug_pad {
+  SV pad[3];
+};
+
+#define PERL_DEBUG_PAD(i)	&(PL_debug_pad.pad[i])
+#define PERL_DEBUG_PAD_ZERO(i)	(sv_setpvn(PERL_DEBUG_PAD(i), "", 0), PERL_DEBUG_PAD(i))
+#endif
+
 /* Enable variables which are pointers to functions */
 typedef void (CPERLscope(*peep_t))(pTHX_ OP* o);
 typedef regexp*(CPERLscope(*regcomp_t)) (pTHX_ char* exp, char* xend, PMOP* pm);