;;; addressable object
(def!constant n-byte-bits 8)
+;;; The size in bytes of the GENCGC pages. Should be a multiple of the
+;;; architecture code size.
+(def!constant gencgc-page-size 4096)
+
(def!constant float-sign-shift 31)
;;; comment from CMU CL:
;;; where to put the different spaces.
+;;; Currently the read-only and static spaces must be located in low
+;;; memory (certainly under the 4GB limit, very probably under 2GB
+;;; limit). This is due to the inability of using immediate values of
+;;; more than 32 bits (31 bits if you take sign extension into
+;;; account) in any other instructions except MOV. Removing this limit
+;;; would be possible, but probably not worth the time and code bloat
+;;; it would cause. -- JES, 2005-12-11
+
(def!constant read-only-space-start #x20000000)
(def!constant read-only-space-end #x27ff0000)
(defvar *allocation-pointer*)
(defvar *binding-stack-pointer*)
-;;; FIXME: !COLD-INIT probably doesn't need
-;;; to be in the static symbols table any more.
-;;;
-;;; FIXME: some of these symbols are shared by all backends,
-;;; and should be factored out into a common file.
(defparameter *static-symbols*
- '(t
-
- ;; The C startup code must fill these in.
- *posix-argv*
-
- ;; functions that the C code needs to call. When adding to this list,
- ;; also add a `frob' form in genesis.lisp finish-symbols.
- sub-gc
- sb!kernel::internal-error
- sb!kernel::control-stack-exhausted-error
- sb!kernel::undefined-alien-variable-error
- sb!kernel::undefined-alien-function-error
- sb!kernel::memory-fault-error
- sb!di::handle-breakpoint
- fdefinition-object
-
- ;; free pointers
- ;;
- ;; Note that these are FIXNUM word counts, not (as one might
- ;; expect) byte counts or SAPs. The reason seems to be that by
- ;; representing them this way, we can avoid consing bignums.
- ;; -- WHN 2000-10-02
- *read-only-space-free-pointer*
- *static-space-free-pointer*
- *initial-dynamic-space-free-pointer*
-
- ;; things needed for non-local exit
- *current-catch-block*
- *current-unwind-protect-block*
- *alien-stack*
-
- ;; interrupt handling
- *pseudo-atomic-atomic*
- *pseudo-atomic-interrupted*
- sb!unix::*interrupts-enabled*
- sb!unix::*interrupt-pending*
- *free-interrupt-context-index*
- *gc-inhibit*
- #!+sb-thread *stop-for-gc-pending*
- *gc-pending*
-
- *free-tls-index*
- *tls-index-lock*
-
- *allocation-pointer*
- *binding-stack-pointer*
- *binding-stack-start*
- *control-stack-start*
- *control-stack-end*
-
- ;; the floating point constants
- *fp-constant-0d0*
- *fp-constant-1d0*
- *fp-constant-0f0*
- *fp-constant-1f0*
-
- ;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the
- ;; common slot unbound check.
- ;;
- ;; FIXME: In SBCL, the CLOS code has become sufficiently tightly
- ;; integrated into the system that it'd probably make sense to use
- ;; the ordinary unbound marker for this.
- sb!pcl::..slot-unbound..))
+ (append
+ *common-static-symbols*
+ *c-callable-static-symbols*
+ '(*alien-stack*
+
+ ;; interrupt handling
+ *pseudo-atomic-bits*
+
+ #!+sb-thread *stop-for-gc-pending*
+
+ #!+sb-thread *free-tls-index*
+ #!+sb-thread *tls-index-lock*
+
+ *allocation-pointer*
+ *binding-stack-pointer*
+
+ ;; the floating point constants
+ *fp-constant-0d0*
+ *fp-constant-1d0*
+ *fp-constant-0f0*
+ *fp-constant-1f0*
+
+ ;; For GC-AND-SAVE
+ *restart-lisp-function*
+
+ ;; Needed for callbacks to work across saving cores. see
+ ;; ALIEN-CALLBACK-ASSEMBLER-WRAPPER in c-call.lisp for gory
+ ;; details.
+ sb!alien::*enter-alien-callback*
+
+ ;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the
+ ;; common slot unbound check.
+ ;;
+ ;; FIXME: In SBCL, the CLOS code has become sufficiently tightly
+ ;; integrated into the system that it'd probably make sense to
+ ;; use the ordinary unbound marker for this.
+ ;;
+ ;; FIXME II: if it doesn't make sense, why is this X86-ish only?
+ sb!pcl::..slot-unbound..)))
(defparameter *static-funs*
'(length
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