src/runtime/globals.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 #if !defined(_INCLUDE_GLOBALS_H_)
  13 #define _INCLUDED_GLOBALS_H_
  14
  15 #ifndef LANGUAGE_ASSEMBLY
  16
  17 #include <sys/types.h>
  18 #include <unistd.h>
  19 #include "runtime.h"
  20
  21 extern int foreign_function_call_active;
  22 extern boolean stop_the_world;
  23
  24 extern lispobj *current_control_stack_pointer;
  25 extern lispobj *current_control_frame_pointer;
  26 #if !defined(__i386__)
  27 extern lispobj *current_binding_stack_pointer;
  28 #endif
  29
  30 #if !defined(__i386__)
  31 /* FIXME: Why doesn't the x86 need this? */
  32 extern lispobj *dynamic_space_free_pointer;
  33 extern lispobj *current_auto_gc_trigger;
  34 #endif
  35
  36 extern lispobj *current_dynamic_space;
  37 extern pid_t parent_pid;
  38
  39 extern void globals_init(void);
  40
  41 #else /* LANGUAGE_ASSEMBLY */
  42
  43 #ifdef mips
  44 #define EXTERN(name,bytes) .extern name bytes
  45 #endif
  46 /**/
  47 #ifdef sparc
  48 #ifdef SVR4
  49 #define EXTERN(name,bytes) .global name
  50 #else
  51 #define EXTERN(name,bytes) .global _ ## name
  52 #endif
  53 #endif
  54 /**/
  55 #ifdef alpha
  56 #ifdef __linux__
  57 #define EXTERN(name,bytes) .globl name
  58 #endif
  59 #endif
  60 #ifdef ppc
  61 #define EXTERN(name,bytes) .globl name
  62 #endif
  63 #ifdef __i386__
  64 #ifdef __linux__
  65 /* I'm very dubious about this.  Linux hasn't used _ on external names
  66  * since ELF became prevalent - i.e. about 1996, on x86    -dan 20010125 */
  67 #define EXTERN(name,bytes) .globl _/**/name
  68 #else
  69 #define EXTERN(name,bytes) .global _ ## name
  70 #endif
  71 #endif
  72
  73 /* FIXME : these sizes are, incidentally, bogus on Alpha.  But the
  74  * EXTERN macro doesn't use its second arg anyway, so no immediate harm
  75  * done   -dan 2002.05.07
  76  */
  77
  78 EXTERN(foreign_function_call_active, 4)
  79
  80 EXTERN(current_control_stack_pointer, 4)
  81 EXTERN(current_control_frame_pointer, 4)
  82 EXTERN(current_binding_stack_pointer, 4)
  83 EXTERN(dynamic_space_free_pointer, 4)
  84 EXTERN(current_dynamic_space, 4)
  85
  86 #ifdef mips
  87 EXTERN(current_flags_register, 4)
  88 #endif
  89
  90 #endif /* LANGUAGE_ASSEMBLY */
  91
  92 #endif /* _INCLUDED_GLOBALS_H_ */