From 316119069d4aa2d715f943069ee9c28a83df598c Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Mon, 10 Jul 2023 07:57:02 +0900
Subject: [PATCH] backtrace.c (each_backtrace): skip callinfo without
 debug_info

---
 src/backtrace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/backtrace.c b/src/backtrace.c
index 751f6ef8b..8455bb84b 100644
--- a/src/backtrace.c
+++ b/src/backtrace.c
@@ -34,6 +34,7 @@ count_backtrace(mrb_state *mrb, ptrdiff_t ciidx)
     else {
       irep = ci->proc->body.irep;
       if (!irep) continue;
+      if (!irep->debug_info) continue;
       if (!mrb->c->cibase[i].pc) {
         continue;
       }
@@ -72,6 +73,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, each_backtrace_func func, void *
     else {
       loc.irep = ci->proc->body.irep;
       if (!loc.irep) continue;
+      if (!loc.irep->debug_info) continue;
       if (mrb->c->cibase[i].pc) {
         pc = &mrb->c->cibase[i].pc[-1];
       }
@@ -90,6 +92,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, each_backtrace_func func, void *
 
         loc.irep = ci->proc->body.irep;
         if (!loc.irep) continue;
+        if (!loc.irep->debug_info) continue;
 
         if (mrb->c->cibase[j].pc) {
           pc = &mrb->c->cibase[j].pc[-1];