1.0.9.62: Performance and stability improvement of threading on FreeBSD
[sbcl.git] / src / runtime / globals.c
1 /*
2  * variables everybody needs to look at or frob on
3  */
4
5 /*
6  * This software is part of the SBCL system. See the README file for
7  * more information.
8  *
9  * This software is derived from the CMU CL system, which was
10  * written at Carnegie Mellon University and released into the
11  * public domain. The software is in the public domain and is
12  * provided with absolutely no warranty. See the COPYING and CREDITS
13  * files for more information.
14  */
15
16 #include <stdio.h>
17 #include <sys/types.h>
18 #include <unistd.h>
19
20 #include "sbcl.h"
21 #include "runtime.h"
22 #include "globals.h"
23 #include "validate.h"
24
25 #ifdef FOREIGN_FUNCTION_CALL_FLAG
26 int foreign_function_call_active;
27 #endif
28
29 lispobj *current_control_stack_pointer;
30 lispobj *current_control_frame_pointer;
31 #ifndef BINDING_STACK_POINTER
32 lispobj *current_binding_stack_pointer;
33 #endif
34
35 /* ALLOCATION_POINTER is x86 or RT.  Anyone want to do an RT port?   */
36
37 # if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
38 /* The Object Formerly Known As current_dynamic_space_free_pointer */
39 lispobj *dynamic_space_free_pointer;
40 #endif
41
42 #ifndef LISP_FEATURE_GENCGC /* GENCGC has its own way to record trigger */
43 lispobj *current_auto_gc_trigger;
44 #endif
45
46 #ifdef LISP_FEATURE_SB_THREAD
47 boolean stop_the_world=0;
48 #endif
49
50 /* For copying GCs, this points to the start of the dynamic space
51  * currently in use (that will become the from_space when the next GC
52  * is done).  For the GENCGC, it always points to DYNAMIC_SPACE_START. */
53 lispobj *current_dynamic_space;
54
55 #if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_GCC_TLS)
56 pthread_key_t specials=0;
57 #endif
58
59 void globals_init(void)
60 {
61     /* Space, stack, and free pointer vars are initialized by
62      * validate() and coreparse(). */
63     current_control_frame_pointer = (lispobj *)0;
64
65 #ifndef LISP_FEATURE_GENCGC
66     /* no GC trigger yet */
67     current_auto_gc_trigger = NULL;
68 #endif
69
70 #ifdef FOREIGN_FUNCTION_CALL_FLAG
71     foreign_function_call_active = 1;
72 #endif
73
74 #if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_GCC_TLS)
75     pthread_key_create(&specials,0);
76 #endif
77 }