2 * garbage collection - shared definitions for modules "inside" the GC system
6 * This software is part of the SBCL system. See the README file for
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.
16 #ifndef _GC_INTERNAL_H_
17 #define _GC_INTERNAL_H_
20 #define gc_assert(ex) do { \
21 if (!(ex)) gc_abort(); \
26 #define gc_abort() lose("GC invariant lost, file \"%s\", line %d", \
29 #define CEILING(x,y) (((x) + ((y) - 1)) & (~((y) - 1)))
30 #define NWORDS(x,y) (CEILING((x),(y)) / (y))
32 /* FIXME: Shouldn't this be defined in sbcl.h? */
33 #define FUN_RAW_ADDR_OFFSET (6*sizeof(lispobj) - FUN_POINTER_LOWTAG)
35 /* values for the *_alloc_* parameters */
38 #define UNBOXED_PAGE 2
41 #define ALLOC_UNBOXED 1
44 void *gc_general_alloc(int nbytes,int unboxed_p,int quick_p);
46 extern int (*scavtab[256])(lispobj *where, lispobj object);
47 extern lispobj (*transother[256])(lispobj object);
48 extern int (*sizetab[256])(lispobj *where);
50 extern struct weak_pointer *weak_pointers; /* in gc-common.c */
52 extern void scavenge(lispobj *start, long n_words);
53 extern void scan_weak_pointers(void);
55 lispobj copy_large_unboxed_object(lispobj object, int nwords);
56 lispobj copy_unboxed_object(lispobj object, int nwords);
57 lispobj copy_large_object(lispobj object, int nwords);
58 lispobj copy_object(lispobj object, int nwords);
60 #ifdef LISP_FEATURE_GENCGC
61 #include "gencgc-internal.h"
63 #include "cheneygc-internal.h"
66 #endif /* _GC_INTERNAL_H_ */