diff --git a/library/bdwgc/src/lib.rs b/library/bdwgc/src/lib.rs
index 76064af9c4303..dbb732a1e8d78 100644
--- a/library/bdwgc/src/lib.rs
+++ b/library/bdwgc/src/lib.rs
@@ -88,4 +88,6 @@ extern "C" {
     pub fn GC_init_tls_rootset(rootset: *mut u8);
 
     pub fn GC_ignore_warn_proc(proc: *mut u8, word: usize);
+
+    pub fn GC_finalized_total() -> u64;
 }
diff --git a/library/std/src/gc.rs b/library/std/src/gc.rs
index 737cf2ac84a95..7af0e547c25d5 100644
--- a/library/std/src/gc.rs
+++ b/library/std/src/gc.rs
@@ -181,6 +181,9 @@ impl GcAllocator {
 ////////////////////////////////////////////////////////////////////////////////
 // Free functions
 ////////////////////////////////////////////////////////////////////////////////
+pub fn finalized_total() -> u64 {
+    unsafe { bdwgc::GC_finalized_total() }
+}
 
 pub fn init() {
     unsafe { bdwgc::GC_set_markers_count(1) }
diff --git a/src/bdwgc b/src/bdwgc
index 9bfdaa2aeaf7a..be14dd1e8ee84 160000
--- a/src/bdwgc
+++ b/src/bdwgc
@@ -1 +1 @@
-Subproject commit 9bfdaa2aeaf7a2becb18f72e5c9bc147a039baae
+Subproject commit be14dd1e8ee84ef93b1a7eec565ea79b10fc3a9c