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 /*
  17  * $Header$
  18  */
  19
  20 #include <stdio.h>
  21
  22 #include "runtime.h"
  23 #include "sbcl.h"
  24 #include "globals.h"
  25
  26 int foreign_function_call_active;
  27
  28 lispobj *current_control_stack_pointer;
  29 lispobj *current_control_frame_pointer;
  30 #ifndef BINDING_STACK_POINTER
  31 lispobj *current_binding_stack_pointer;
  32 #endif
  33
  34 lispobj *control_stack;
  35 #ifdef __i386__
  36 lispobj *control_stack_end;
  37 #endif
  38
  39 #ifndef ALLOCATION_POINTER
  40 lispobj *dynamic_space_free_pointer;
  41 #endif
  42 #ifndef INTERNAL_GC_TRIGGER
  43 lispobj *current_auto_gc_trigger;
  44 #endif
  45
  46 void globals_init(void)
  47 {
  48     /* Space, stack, and free pointer vars are initialized by
  49      * validate() and coreparse(). */
  50
  51 #ifndef INTERNAL_GC_TRIGGER
  52     /* no GC trigger yet */
  53     current_auto_gc_trigger = NULL;
  54 #endif
  55
  56     /* Set foreign function call active. */
  57     foreign_function_call_active = 1;
  58
  59     /* Initialize the current Lisp state. */
  60 #ifndef __i386__
  61     current_control_stack_pointer = control_stack;
  62 #else
  63     current_control_stack_pointer = control_stack_end;
  64 #endif
  65
  66     current_control_frame_pointer = (lispobj *)0;
  67 #ifndef BINDING_STACK_POINTER
  68     current_binding_stack_pointer = BINDING_STACK_START;
  69 #endif
  70 }