2 * Copyright (c) 1994 by Xerox Corporation. All rights reserved.
3 * Copyright (c) 1996 by Silicon Graphics. All rights reserved.
4 * Copyright (c) 1998 by Fergus Henderson. All rights reserved.
5 * Copyright (c) 2000-2009 by Hewlett-Packard Development Company.
8 * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
9 * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
11 * Permission is hereby granted to use or copy this program
12 * for any purpose, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
18 #ifndef GC_DARWIN_STOP_WORLD_H
19 #define GC_DARWIN_STOP_WORLD_H
21 #if !defined(GC_DARWIN_THREADS)
22 # error darwin_stop_world.h included without GC_DARWIN_THREADS defined
25 #include <mach/mach.h>
26 #include <mach/thread_act.h>
28 struct thread_stop_info {
29 mach_port_t mach_thread;
30 ptr_t stack_ptr; /* Valid only when thread is in a "blocked" state. */
33 #ifndef DARWIN_DONT_PARSE_STACK
34 GC_INNER ptr_t GC_FindTopOfStack(unsigned long);
38 GC_INNER void GC_mprotect_stop(void);
39 GC_INNER void GC_mprotect_resume(void);
42 #if defined(PARALLEL_MARK) && !defined(GC_NO_THREADS_DISCOVERY)
43 GC_INNER GC_bool GC_is_mach_marker(thread_act_t);