#endif
union interrupt_handler handler;
- /* FIXME: The CMU CL we forked off of had this Linux-only
- * operation here. Newer CMU CLs (e.g. 18c) have hairier
- * Linux/i386-only logic here. SBCL seems to be more reliable
- * without anything here. However, if we start supporting code
- * which sets the rounding mode, then we may want to do something
- * special to force the rounding mode back to some standard value
- * here, so that ISRs can have a standard environment. (OTOH, if
- * rounding modes are under user control, then perhaps we should
- * leave this up to the user.)
- *
- * In the absence of a test case to show that this is really a
- * problem, we just suppress this code completely (just like the
- * parallel code in maybe_now_maybe_later).
- * #ifdef __linux__
- * SET_FPU_CONTROL_WORD(context->__fpregs_mem.cw);
- * #endif */
-
+#ifdef LISP_FEATURE_LINUX
+ /* Under Linux, we appear to have to restore the fpu control word
+ from the context, as after the signal is delivered we appear to
+ have a null fpu control word. */
+ os_restore_fp_control(context);
+#endif
handler = interrupt_handlers[signal];
if (ARE_SAME_HANDLER(handler.c, SIG_IGN)) {
* interrupt time which should be ported into SBCL. Also see the
* analogous logic at the head of interrupt_handle_now for
* more related FIXME stuff.
- *
- * For now, we just suppress this code completely.
- * #ifdef __linux__
- * SET_FPU_CONTROL_WORD(context->__fpregs_mem.cw);
- * #endif */
-
+ */
+
+#ifdef LISP_FEATURE_LINUX
+ os_restore_fp_control(context);
+#endif
+
/* see comments at top of code/signal.lisp for what's going on here
* with INTERRUPTS_ENABLED/INTERRUPT_HANDLE_NOW
*/
* have to do it ourselves. Add small amount of space
* to tide us over while GC is inhibited
*/
- set_auto_gc_trigger((u32)dynamic_space_free_pointer
- -(u32)current_dynamic_space
- +(u32)os_vm_page_size);
+ set_auto_gc_trigger(DYNAMIC_SPACE_SIZE
+ -(u32)os_vm_page_size);
}
return 1;
} else {