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 "sbcl.h"
  20 #include "runtime.h"
  21
  22 extern int foreign_function_call_active;
  23 extern boolean stop_the_world;
  24
  25 extern lispobj *current_control_stack_pointer;
  26 extern lispobj *current_control_frame_pointer;
  27 #if !defined(LISP_FEATURE_X86)
  28 extern lispobj *current_binding_stack_pointer;
  29 #endif
  30
  31 #if !defined(LISP_FEATURE_X86)
  32 /* FIXME: Why doesn't the x86 need this? */
  33 extern lispobj *dynamic_space_free_pointer;
  34 extern lispobj *current_auto_gc_trigger;
  35 #endif
  36
  37 extern lispobj *current_dynamic_space;
  38 extern pid_t parent_pid;
  39 extern boolean stop_the_world;
  40
  41 extern void globals_init(void);
  42
  43 #else /* LANGUAGE_ASSEMBLY */
  44
  45 #ifdef mips
  46 #define EXTERN(name,bytes) .extern name bytes
  47 #endif
  48 /**/
  49 #ifdef sparc
  50 #ifdef SVR4
  51 #define EXTERN(name,bytes) .global name
  52 #else
  53 #define EXTERN(name,bytes) .global _ ## name
  54 #endif
  55 #endif
  56 /**/
  57 #ifdef alpha
  58 #ifdef __linux__
  59 #define EXTERN(name,bytes) .globl name
  60 #endif
  61 #endif
  62 #ifdef ppc
  63 #ifdef LISP_FEATURE_DARWIN
  64 #define EXTERN(name,bytes) .globl _/**/name
  65 #else
  66 #define EXTERN(name,bytes) .globl name
  67 #endif
  68 #endif
  69 #ifdef LISP_FEATURE_X86
  70 #ifdef __linux__
  71 /* I'm very dubious about this.  Linux hasn't used _ on external names
  72  * since ELF became prevalent - i.e. about 1996, on x86    -dan 20010125 */
  73 #define EXTERN(name,bytes) .globl _/**/name
  74 #else
  75 #define EXTERN(name,bytes) .global _ ## name
  76 #endif
  77 #endif
  78
  79 /* FIXME : these sizes are, incidentally, bogus on Alpha.  But the
  80  * EXTERN macro doesn't use its second arg anyway, so no immediate harm
  81  * done   -dan 2002.05.07
  82  */
  83
  84 EXTERN(foreign_function_call_active, 4)
  85
  86 EXTERN(current_control_stack_pointer, 4)
  87 EXTERN(current_control_frame_pointer, 4)
  88 EXTERN(current_binding_stack_pointer, 4)
  89 EXTERN(dynamic_space_free_pointer, 4)
  90 EXTERN(current_dynamic_space, 4)
  91
  92 #ifdef mips
  93 EXTERN(current_flags_register, 4)
  94 #endif
  95
  96 #endif /* LANGUAGE_ASSEMBLY */
  97
  98 #endif /* _INCLUDED_GLOBALS_H_ */