+static inline os_context_t *get_interrupt_context_for_thread(struct thread *th)
+{
+ return th->interrupt_contexts
+ [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
+}
+
+/* This is clearly per-arch and possibly even per-OS code, but we can't
+ * put it somewhere sensible like x86-linux-os.c because it needs too
+ * much stuff like struct thread and all_threads to be defined, which
+ * usually aren't by that time. So, it's here instead. Sorry */
+
+static inline struct thread *arch_os_get_current_thread() {
+#if defined(LISP_FEATURE_SB_THREAD) && defined (LISP_FEATURE_X86)
+ register struct thread *me=0;
+ if(all_threads)
+ __asm__ __volatile__ ("movl %%fs:%c1,%0" : "=r" (me)
+ : "i" (offsetof (struct thread,this)));
+ return me;
+#else
+ return all_threads;
+#endif
+}
+
+
+int arch_os_thread_init(struct thread *thread);
+extern void create_initial_thread(lispobj);