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-rw-r--r--src/rt/rust_builtin.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 5e7357c9b7b..fe4e75fb8d2 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -930,6 +930,13 @@ rust_begin_unwind(uintptr_t token) {
 #endif
 }
 
+extern int get_num_cpus();
+
+extern "C" CDECL uintptr_t
+rust_get_num_cpus() {
+    return get_num_cpus();
+}
+
 //
 // Local Variables:
 // mode: C++