2 * This software is part of the SBCL system. See the README file for
5 * This software is derived from the CMU CL system, which was
6 * written at Carnegie Mellon University and released into the
7 * public domain. The software is in the public domain and is
8 * provided with absolutely no warranty. See the COPYING and CREDITS
9 * files for more information.
12 #ifndef _INCLUDED_GLOBALS_H_
13 #define _INCLUDED_GLOBALS_H_
15 #ifndef LANGUAGE_ASSEMBLY
16 # include <sys/types.h>
23 /* Currently threads live only on x86oid platforms, but this thing
24 * cannot ever work with threads, so... */
25 #if !defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
26 #define FOREIGN_FUNCTION_CALL_FLAG
29 #ifndef LANGUAGE_ASSEMBLY
31 #ifdef FOREIGN_FUNCTION_CALL_FLAG
32 extern int foreign_function_call_active;
35 extern size_t dynamic_space_size;
37 #ifdef LISP_FEATURE_WIN32
38 #define ENVIRON _environ
40 #define ENVIRON environ
42 extern char **ENVIRON;
44 #if defined(LISP_FEATURE_SB_THREAD)
45 extern pthread_key_t specials;
48 extern lispobj *current_control_stack_pointer;
49 extern lispobj *current_control_frame_pointer;
50 # if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
51 extern lispobj *current_binding_stack_pointer;
54 #if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
55 /* This is unused on X86 and X86_64, but is used as the global
56 * allocation pointer by the cheney GC, and, in some instances, as
57 * the global allocation pointer on PPC/GENCGC. This should probably
58 * be cleaned up such that it only needs to exist on cheney. At the
59 * moment, it is also used by the GENCGC, to hold the pseudo_atomic
60 * bits, and is tightly coupled to reg_ALLOC by the assembly
62 extern lispobj *dynamic_space_free_pointer;
65 # ifndef LISP_FEATURE_GENCGC
66 extern lispobj *current_auto_gc_trigger;
69 extern lispobj *current_dynamic_space;
71 extern void globals_init(void);
73 #else /* LANGUAGE_ASSEMBLY */
75 # ifdef LISP_FEATURE_MIPS
77 # define EXTERN(name,bytes) .globl name
79 # define EXTERN(name,bytes) .extern name bytes
83 # ifdef LISP_FEATURE_SPARC
85 # define EXTERN(name,bytes) .global name
87 # define EXTERN(name,bytes) .global _ ## name
91 # ifdef LISP_FEATURE_ALPHA
93 # define EXTERN(name,bytes) .globl name
97 # ifdef LISP_FEATURE_PPC
98 # ifdef LISP_FEATURE_DARWIN
99 # define EXTERN(name,bytes) .globl _/**/name
101 # define EXTERN(name,bytes) .globl name
105 # if defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64)
106 # define EXTERN(name,bytes) .global name
109 # if defined(LISP_FEATURE_ALPHA) || defined(LISP_FEATURE_X86_64)
110 # define POINTERSIZE 8
112 # define POINTERSIZE 4
115 #ifdef FOREIGN_FUNCTION_CALL_FLAG
116 EXTERN(foreign_function_call_active, 4)
119 EXTERN(current_control_stack_pointer, POINTERSIZE)
120 EXTERN(current_control_frame_pointer, POINTERSIZE)
121 # if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
122 EXTERN(current_binding_stack_pointer, POINTERSIZE)
124 # ifndef LISP_FEATURE_GENCGC
125 EXTERN(dynamic_space_free_pointer, POINTERSIZE)
128 #endif /* LANGUAGE_ASSEMBLY */
130 #endif /* _INCLUDED_GLOBALS_H_ */