1.0.41.21: runtime: Current stack and frame pointers are per-thread data.

[sbcl.git] / src / runtime / globals.h

diff --git a/src/runtime/globals.h b/src/runtime/globals.h
index 6989820..e807eee 100644 (file)
--- a/src/runtime/globals.h
+++ b/src/runtime/globals.h
@@ -9,72 +9,130 @@
  * files for more information.
  */
 
-#if !defined(_INCLUDE_GLOBALS_H_)
+#ifndef _INCLUDED_GLOBALS_H_
 #define _INCLUDED_GLOBALS_H_
 
 #ifndef LANGUAGE_ASSEMBLY
+# include <sys/types.h>
+# include <unistd.h>
+# include "runtime.h"
+#endif
+
+#include "sbcl.h"
 
-#include "runtime.h"
+#ifndef LANGUAGE_ASSEMBLY
 
+#ifdef LISP_FEATURE_SB_THREAD
+#define foreign_function_call_active_p(thread) \
+    (thread->foreign_function_call_active)
+#else
 extern int foreign_function_call_active;
+#define foreign_function_call_active_p(thread) \
+    foreign_function_call_active
+#endif
+
+extern size_t dynamic_space_size;
+extern size_t thread_control_stack_size;
+
+extern struct runtime_options *runtime_options;
+
+#ifdef LISP_FEATURE_WIN32
+#define ENVIRON _environ
+#else
+#define ENVIRON environ
+#endif
+extern char **ENVIRON;
+
+#if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_GCC_TLS)
+extern pthread_key_t specials;
+#endif
 
+#if !defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_C_STACK_IS_CONTROL_STACK)
 extern lispobj *current_control_stack_pointer;
+#endif
+#if defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64) || !defined(LISP_FEATURE_SB_THREAD)
 extern lispobj *current_control_frame_pointer;
-#if !defined(__i386__)
+#endif
+#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64) && !defined(LISP_FEATURE_SB_THREAD)
 extern lispobj *current_binding_stack_pointer;
 #endif
 
-#if !defined(__i386__)
-/* FIXME: Why doesn't the x86 need this? */
+#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
+/* This is unused on X86 and X86_64, but is used as the global
+ *  allocation pointer by the cheney GC, and, in some instances, as
+ *  the global allocation pointer on PPC/GENCGC. This should probably
+ *  be cleaned up such that it only needs to exist on cheney. At the
+ *  moment, it is also used by the GENCGC, to hold the pseudo_atomic
+ *  bits, and is tightly coupled to reg_ALLOC by the assembly
+ *  routines. */
 extern lispobj *dynamic_space_free_pointer;
-extern lispobj *current_auto_gc_trigger;
 #endif
 
+# ifndef LISP_FEATURE_GENCGC
+extern lispobj *current_auto_gc_trigger;
+# endif
+
 extern lispobj *current_dynamic_space;
 
 extern void globals_init(void);
 
-#else  LANGUAGE_ASSEMBLY
+#else /* LANGUAGE_ASSEMBLY */
 
-#ifdef mips
-#define EXTERN(name,bytes) .extern name bytes
-#endif
+# ifdef LISP_FEATURE_MIPS
+#  ifdef __linux__
+#   define EXTERN(name,bytes) .globl name
+#  else
+#   define EXTERN(name,bytes) .extern name bytes
+#  endif
+# endif
 /**/
-#ifdef sparc
-#ifdef SVR4
-#define EXTERN(name,bytes) .global name
-#else
-#define EXTERN(name,bytes) .global _ ## name
-#endif
-#endif
+# ifdef LISP_FEATURE_SPARC
+#  ifdef SVR4
+#   define EXTERN(name,bytes) .global name
+#  else
+#   define EXTERN(name,bytes) .global _ ## name
+#  endif
+# endif
 /**/
-#ifdef alpha
-#ifdef __linux__
-#define EXTERN(name,bytes) .globl name 
-#endif
-#endif
-#ifdef __i386__
-#ifdef __linux__
-/* I'm very dubious about this.  Linux hasn't used _ on external names
- * since ELF became prevalent - i.e. about 1996, on x86    -dan 20010125 */
-#define EXTERN(name,bytes) .globl _/**/name
-#else
-#define EXTERN(name,bytes) .global _ ## name
-#endif
-#endif
+# ifdef LISP_FEATURE_ALPHA
+#  ifdef __linux__
+#   define EXTERN(name,bytes) .globl name
+#  endif
+# endif
+/**/
+# ifdef LISP_FEATURE_PPC
+#  ifdef LISP_FEATURE_DARWIN
+#   define EXTERN(name,bytes) .globl _ ## name
+#  else
+#   define EXTERN(name,bytes) .globl name
+#  endif
+# endif
+/**/
+# if defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64)
+#  define EXTERN(name,bytes) .global name
+# endif
 
-EXTERN(foreign_function_call_active, 4)
+# if defined(LISP_FEATURE_ALPHA) || defined(LISP_FEATURE_X86_64)
+#  define POINTERSIZE 8
+# else
+#  define POINTERSIZE 4
+# endif
 
-EXTERN(current_control_stack_pointer, 4)
-EXTERN(current_control_frame_pointer, 4)
-EXTERN(current_binding_stack_pointer, 4)
-EXTERN(dynamic_space_free_pointer, 4)
-EXTERN(current_dynamic_space, 4)
+#ifndef LISP_FEATURE_SB_THREAD
+EXTERN(foreign_function_call_active, 4)
+#endif
 
-#ifdef mips
-EXTERN(current_flags_register, 4)
+#if !defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_C_STACK_IS_CONTROL_STACK)
+EXTERN(current_control_stack_pointer, POINTERSIZE)
 #endif
+EXTERN(current_control_frame_pointer, POINTERSIZE)
+# if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
+EXTERN(current_binding_stack_pointer, POINTERSIZE)
+# endif
+# ifndef LISP_FEATURE_GENCGC
+EXTERN(dynamic_space_free_pointer, POINTERSIZE)
+# endif
 
-#endif LANGUAGE_ASSEMBLY
+#endif /* LANGUAGE_ASSEMBLY */
 
-#endif _INCLUDED_GLOBALS_H_
+#endif /* _INCLUDED_GLOBALS_H_ */