src/runtime/cheneygc-internal.h

   1 /*
   2  * This software is part of the SBCL system. See the README file for
   3  * more information.
   4  *
   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.
  10  */
  11
  12 #include "os.h" /* for os_context_t */
  13
  14 extern lispobj *from_space;
  15 extern lispobj *from_space_free_pointer;
  16
  17 extern lispobj *new_space;
  18 extern lispobj *new_space_free_pointer;
  19
  20
  21 /* predicates */
  22 /* #if defined(DEBUG_SPACE_PREDICATES) */
  23 #if 0
  24 boolean
  25 from_space_p(lispobj object)
  26 {
  27     lispobj *ptr;
  28
  29     /* this can be called for untagged pointers as well as for
  30        descriptors, so this assertion's not applicable
  31        gc_assert(is_lisp_pointer(object));
  32     */
  33     ptr = (lispobj *) native_pointer(object);
  34
  35     return ((from_space <= ptr) &&
  36             (ptr < from_space_free_pointer));
  37 }
  38
  39 boolean
  40 new_space_p(lispobj object)
  41 {
  42     lispobj *ptr;
  43
  44     /*    gc_assert(is_lisp_pointer(object)); */
  45
  46     ptr = (lispobj *) native_pointer(object);
  47
  48     return ((new_space <= ptr) &&
  49             (ptr < new_space_free_pointer));
  50 }
  51
  52 #else
  53
  54 #define from_space_p(ptr) \
  55         ((from_space <= ((lispobj *) ((pointer_sized_uint_t) ptr))) && \
  56          (((lispobj *) ((pointer_sized_uint_t) ptr))< from_space_free_pointer))
  57
  58 #define new_space_p(ptr) \
  59         ((new_space <= ((lispobj *) ((pointer_sized_uint_t) ptr))) && \
  60          (((lispobj *) ((pointer_sized_uint_t) ptr)) < new_space_free_pointer))
  61
  62 #endif
  63
  64 extern boolean cheneygc_handle_wp_violation(os_context_t*, void*);