1 files changed, 25 insertions, 0 deletions
diff --git a/wasm/machine.h b/wasm/machine.h
new file mode 100644
index 0000000000..1a60e51d11
--- /dev/null
+++ b/wasm/machine.h
@@ -0,0 +1,25 @@
+#ifndef RB_WASM_SUPPORT_MACHINE_H
+#define RB_WASM_SUPPORT_MACHINE_H
+
+// Function pointer used as scan callbacks
+typedef void (*rb_wasm_scan_func)(void*, void*);
+
+// Scan WebAssembly locals in the all call stack (like registers) spilled by Asyncify
+// Used by conservative GC
+void rb_wasm_scan_locals(rb_wasm_scan_func scan);
+
+// Get base address of userland C-stack memory space in WebAssembly. Used by conservative GC
+void *rb_wasm_stack_get_base(void);
+
+
+// Get the current stack pointer
+void *rb_wasm_get_stack_pointer(void);
+
+// Set the current stack pointer
+void rb_wasm_set_stack_pointer(void *sp);
+
+// Returns the Asyncify buffer of next rewinding if unwound for spilling locals.
+// Used by the top level Asyncify handling in wasm/runtime.c
+void *rb_wasm_handle_scan_unwind(void);
+
+#endif