1 files changed, 7 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index a0f9388df7..7860c2d505 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -903,8 +903,15 @@ typedef struct rb_execution_context_struct {
     } machine;
 } rb_execution_context_t;
 
+// Set the vm_stack pointer in the execution context.
 void rb_ec_set_vm_stack(rb_execution_context_t *ec, VALUE *stack, size_t size);
 
+// Initialize the vm_stack pointer in the execution context and push the initial stack frame.
+// @param ec the execution context to update.
+// @param stack a pointer to the stack to use.
+// @param size the size of the stack, as in `VALUE stack[size]`.
+void rb_ec_initialize_vm_stack(rb_execution_context_t *ec, VALUE *stack, size_t size);
+
 typedef struct rb_thread_struct {
     struct list_node vmlt_node;
     VALUE self;