X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fgeneric%2Fobjdef.lisp;h=16f8a6bca9d1170c67d36c52f72c830c76551c77;hb=77c80b85dc9ae9bde0692d4193187bfca507b936;hp=0e9d11e19aa3d532d364b3eb0de9231fe6c43b7d;hpb=040e4e707e4f7bc9bda2ab78774fd9205c44ee1f;p=sbcl.git

diff --git a/src/compiler/generic/objdef.lisp b/src/compiler/generic/objdef.lisp
index 0e9d11e..16f8a6b 100644
--- a/src/compiler/generic/objdef.lisp
+++ b/src/compiler/generic/objdef.lisp
@@ -96,6 +96,8 @@
 
 (define-primitive-object (array :lowtag other-pointer-lowtag
 				:widetag t)
+  ;; FILL-POINTER of an ARRAY is in the same place as LENGTH of a
+  ;; VECTOR -- see SHRINK-VECTOR.
   (fill-pointer :type index
 		:ref-trans %array-fill-pointer
 		:ref-known (flushable foldable)
@@ -131,6 +133,8 @@
 (define-primitive-object (vector :type vector
 				 :lowtag other-pointer-lowtag
 				 :widetag t)
+  ;; FILL-POINTER of an ARRAY is in the same place as LENGTH of a
+  ;; VECTOR -- see SHRINK-VECTOR.
   (length :ref-trans sb!c::vector-length
 	  :type index)
   (data :rest-p t :c-type #!-alpha "unsigned long" #!+alpha "u32"))
@@ -326,8 +330,7 @@
   ;; subtract 3 from (sb-kernel:get-lisp-obj-address 'NIL) you get the
   ;; first data slot, and if you subtract 7 you get a symbol header.
 
-  (value #!-sb-thread :set-trans #!-sb-thread %set-symbol-value
-	 :init :unbound)		;also the CAR of NIL-as-end-of-list
+  (value :init :unbound)		;also the CAR of NIL-as-end-of-list
   (hash)				;the CDR of NIL-as-end-of-list
 
   (plist :ref-trans symbol-plist
@@ -370,18 +373,19 @@
   ;; unbound_marker is borrowed very briefly at thread startup to 
   ;; pass the address of initial-function into new_thread_trampoline 
   (unbound-marker :init :unbound) ; tls[0] = UNBOUND_MARKER_WIDETAG 
-  (binding-stack-start :c-type "lispobj *")
-  (binding-stack-pointer :c-type "lispobj *")
-  (control-stack-start :c-type "lispobj *")
-  (control-stack-end :c-type "lispobj *")
-  (alien-stack-start :c-type "lispobj *")
-  (alien-stack-pointer :c-type "lispobj *")
-  (alloc-region :c-type "struct alloc_region" :length 5)
   (pid :c-type "pid_t")
+  (binding-stack-start :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  (binding-stack-pointer :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  (control-stack-start :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  (control-stack-end :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  (alien-stack-start :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  (alien-stack-pointer :c-type "lispobj *" :length #!+alpha 2 #!-alpha 1)
+  #!+gencgc (alloc-region :c-type "struct alloc_region" :length 5)
   (tls-cookie)				;  on x86, the LDT index 
-  (this :c-type "struct thread *")
-  (next :c-type "struct thread *")
-  (pseudo-atomic-atomic)
-  (pseudo-atomic-interrupted)
-  (interrupt-data :c-type "struct interrupt_data *")
+  (this :c-type "struct thread *" :length #!+alpha 2 #!-alpha 1)
+  (next :c-type "struct thread *" :length #!+alpha 2 #!-alpha 1)
+  #!+x86 (pseudo-atomic-atomic)
+  #!+x86 (pseudo-atomic-interrupted)
+  (interrupt-data :c-type "struct interrupt_data *" 
+		  :length #!+alpha 2 #!-alpha 1)
   (interrupt-contexts :c-type "os_context_t *" :rest-p t))