From 21feb209a893d356c1be6d96b11d79a978b62163 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@peterzhu.ca>
Date: Fri, 18 Oct 2024 10:43:55 -0400
Subject: [PATCH] Implement rb_gc_impl_prepare_heap

---
 gc/mmtk.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gc/mmtk.c b/gc/mmtk.c
index 12947f5d8facdd..3fb5aa39e2fd94 100644
--- a/gc/mmtk.c
+++ b/gc/mmtk.c
@@ -568,10 +568,16 @@ rb_gc_impl_during_gc_p(void *objspace_ptr)
     return false;
 }
 
+static void
+rb_gc_impl_prepare_heap_i(MMTk_ObjectReference obj, void *d)
+{
+    rb_gc_prepare_heap_process_object((VALUE)obj);
+}
+
 void
 rb_gc_impl_prepare_heap(void *objspace_ptr)
 {
-    // TODO
+    mmtk_enumerate_objects(rb_gc_impl_prepare_heap_i, NULL);
 }
 
 void