#define OS_VM_PROT_WRITE PROT_WRITE
#define OS_VM_PROT_EXECUTE PROT_EXEC
-/* /usr/include/asm/sigcontext.h */
-typedef long os_context_register_t ;
+#define SIG_MEMORY_FAULT SIGSEGV
+
+#define SIG_INTERRUPT_THREAD (SIGRTMIN)
+#define SIG_STOP_FOR_GC (SIGRTMIN+1)
+