(make-ea :byte :base ,n-source :disp ,n-offset)))
(:big-endian
`(inst mov ,n-target
- (make-ea :byte :base ,n-source :disp (+ ,n-offset 4)))))))
+ (make-ea :byte :base ,n-source
+ :disp (+ ,n-offset (1- n-word-bytes))))))))
\f
;;;; allocation helpers
#!-sb-thread
(make-ea :qword
:scale 1 :disp
- (make-fixup (extern-alien-name "boxed_region") :foreign)))
+ (make-fixup "boxed_region" :foreign)))
;; thread->alloc_region.end_addr
(end-addr
#!+sb-thread
#!-sb-thread
(make-ea :qword
:scale 1 :disp
- (make-fixup (extern-alien-name "boxed_region") :foreign 8))))
+ (make-fixup "boxed_region" :foreign 8))))
(cond (in-elsewhere
(allocation-tramp alloc-tn size))
(t
;;; Allocate an other-pointer object of fixed SIZE with a single word
;;; header having the specified WIDETAG value. The result is placed in
;;; RESULT-TN.
-(defmacro with-fixed-allocation ((result-tn widetag size &optional inline)
+(defmacro with-fixed-allocation ((result-tn widetag size &optional inline stack-allocate-p)
&body forms)
(unless forms
(bug "empty &body in WITH-FIXED-ALLOCATION"))
- (once-only ((result-tn result-tn) (size size))
- `(pseudo-atomic
- (allocation ,result-tn (pad-data-block ,size) ,inline)
+ (once-only ((result-tn result-tn) (size size) (stack-allocate-p stack-allocate-p))
+ `(maybe-pseudo-atomic ,stack-allocate-p
+ (allocation ,result-tn (pad-data-block ,size) ,inline ,stack-allocate-p)
(storew (logior (ash (1- ,size) n-widetag-bits) ,widetag)
,result-tn)
(inst lea ,result-tn
(eval-when (#-sb-xc :compile-toplevel :load-toplevel :execute)
(defun emit-error-break (vop kind code values)
(let ((vector (gensym)))
- `((inst int 3) ; i386 breakpoint instruction
+ `((progn
+ #!-darwin (inst int 3) ; i386 breakpoint instruction
+ ;; On Darwin, we need to use #x0b0f instead of int3 in order
+ ;; to generate a SIGILL instead of a SIGTRAP as darwin/x86
+ ;; doesn't seem to be reliably firing SIGTRAP
+ ;; handlers. Hopefully this will be fixed by Apple at a
+ ;; later date. Do the same on x86-64 as we do on x86 until this gets
+ ;; sorted out.
+ #!+darwin (inst word #x0b0f))
+
;; The return PC points here; note the location for the debugger.
(let ((vop ,vop))
(when vop
\f
;;;; indexed references
+(defmacro define-full-compare-and-swap
+ (name type offset lowtag scs el-type &optional translate)
+ `(progn
+ (define-vop (,name)
+ ,@(when translate `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg) :to :eval)
+ (index :scs (any-reg) :to :result)
+ (old-value :scs ,scs :target rax)
+ (new-value :scs ,scs))
+ (:arg-types ,type tagged-num ,el-type ,el-type)
+ (:temporary (:sc descriptor-reg :offset rax-offset
+ :from (:argument 2) :to :result :target value) rax)
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 5
+ (move rax old-value)
+ #!+sb-thread
+ (inst lock)
+ (inst cmpxchg (make-ea :qword :base object :index index
+ :disp (- (* ,offset n-word-bytes) ,lowtag))
+ new-value)
+ (move value rax)))))
+
(defmacro define-full-reffer (name type offset lowtag scs el-type &optional translate)
`(progn
(define-vop (,name)
:disp (- (* (+ ,offset index) n-word-bytes)
,lowtag)))))))
+(defmacro define-full-reffer+offset (name type offset lowtag scs el-type &optional translate)
+ `(progn
+ (define-vop (,name)
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (index :scs (any-reg)))
+ (:info offset)
+ (:arg-types ,type tagged-num
+ (:constant (constant-displacement other-pointer-lowtag
+ n-word-bytes vector-data-offset)))
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 3 ; pw was 5
+ (inst mov value (make-ea :qword :base object :index index
+ :disp (- (* (+ ,offset offset) n-word-bytes)
+ ,lowtag)))))
+ (define-vop (,(symbolicate name "-C"))
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg)))
+ (:info index offset)
+ (:arg-types ,type
+ (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
+ ,(eval offset)))
+ (:constant (constant-displacement other-pointer-lowtag
+ n-word-bytes vector-data-offset)))
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 2 ; pw was 5
+ (inst mov value (make-ea :qword :base object
+ :disp (- (* (+ ,offset index offset) n-word-bytes)
+ ,lowtag)))))))
+
(defmacro define-full-setter (name type offset lowtag scs el-type &optional translate)
`(progn
(define-vop (,name)
value)
(move result value)))))
+(defmacro define-full-setter+offset (name type offset lowtag scs el-type &optional translate)
+ `(progn
+ (define-vop (,name)
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (index :scs (any-reg))
+ (value :scs ,scs :target result))
+ (:info offset)
+ (:arg-types ,type tagged-num
+ (:constant (constant-displacement other-pointer-lowtag
+ n-word-bytes
+ vector-data-offset))
+ ,el-type)
+ (:results (result :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 4 ; was 5
+ (inst mov (make-ea :qword :base object :index index
+ :disp (- (* (+ ,offset offset) n-word-bytes) ,lowtag))
+ value)
+ (move result value)))
+ (define-vop (,(symbolicate name "-C"))
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (value :scs ,scs :target result))
+ (:info index offset)
+ (:arg-types ,type
+ (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
+ ,(eval offset)))
+ (:constant (constant-displacement other-pointer-lowtag
+ n-word-bytes
+ vector-data-offset))
+ ,el-type)
+ (:results (result :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 3 ; was 5
+ (inst mov (make-ea :qword :base object
+ :disp (- (* (+ ,offset index offset) n-word-bytes)
+ ,lowtag))
+ value)
+ (move result value)))))
+
;;; helper for alien stuff.
-(defmacro with-pinned-objects ((&rest objects) &body body)
+(def!macro with-pinned-objects ((&rest objects) &body body)
"Arrange with the garbage collector that the pages occupied by
OBJECTS will not be moved in memory for the duration of BODY.
Useful for e.g. foreign calls where another thread may trigger
projects / sbcl.git / blobdiff