;;; Return a wired TN describing the N'th full call argument passing
;;; location.
-(!def-vm-support-routine standard-arg-location (n)
+(defun standard-arg-location (n)
(declare (type unsigned-byte n))
(if (< n register-arg-count)
(make-wired-tn *backend-t-primitive-type*
;;; is true, then use the standard (full call) location, otherwise use
;;; any legal location. Even in the non-standard case, this may be
;;; restricted by a desire to use a subroutine call instruction.
-(!def-vm-support-routine make-return-pc-passing-location (standard)
+(defun make-return-pc-passing-location (standard)
(if standard
(make-wired-tn *backend-t-primitive-type* register-arg-scn lra-offset)
(make-restricted-tn *backend-t-primitive-type* register-arg-scn)))
;;; standard convention, but is totally unrestricted in non-standard
;;; conventions, since we can always fetch it off of the stack using
;;; the arg pointer.
-(!def-vm-support-routine make-old-fp-passing-location (standard)
+(defun make-old-fp-passing-location (standard)
(if standard
(make-wired-tn *fixnum-primitive-type* immediate-arg-scn ocfp-offset)
(make-normal-tn *fixnum-primitive-type*)))
;;; These functions make the TNs used to hold Old-FP and Return-PC
;;; within the current function. We treat these specially so that the
;;; debugger can find them at a known location.
-(!def-vm-support-routine make-old-fp-save-location (env)
+(defun make-old-fp-save-location (env)
(specify-save-tn
(physenv-debug-live-tn (make-normal-tn *fixnum-primitive-type*) env)
(make-wired-tn *fixnum-primitive-type*
control-stack-arg-scn
ocfp-save-offset)))
-(!def-vm-support-routine make-return-pc-save-location (env)
+(defun make-return-pc-save-location (env)
(let ((ptype *backend-t-primitive-type*))
(specify-save-tn
(physenv-debug-live-tn (make-normal-tn ptype) env)
;;; Make a TN for the standard argument count passing location. We
;;; only need to make the standard location, since a count is never
;;; passed when we are using non-standard conventions.
-(!def-vm-support-routine make-arg-count-location ()
+(defun make-arg-count-location ()
(make-wired-tn *fixnum-primitive-type* immediate-arg-scn nargs-offset))
;;; Make a TN to hold the number-stack frame pointer. This is
;;; allocated once per component, and is component-live.
-(!def-vm-support-routine make-nfp-tn ()
+(defun make-nfp-tn ()
(component-live-tn
(make-wired-tn *fixnum-primitive-type* immediate-arg-scn nfp-offset)))
-(!def-vm-support-routine make-stack-pointer-tn ()
+(defun make-stack-pointer-tn ()
(make-normal-tn *fixnum-primitive-type*))
-(!def-vm-support-routine make-number-stack-pointer-tn ()
+(defun make-number-stack-pointer-tn ()
(make-normal-tn *fixnum-primitive-type*))
;;; Return a list of TNs that can be used to represent an
;;; unknown-values continuation within a function.
-(!def-vm-support-routine make-unknown-values-locations ()
+(defun make-unknown-values-locations ()
(list (make-stack-pointer-tn)
(make-normal-tn *fixnum-primitive-type*)))
;;; VM-dependent initialization of the IR2-COMPONENT structure. We
;;; push placeholder entries in the CONSTANTS to leave room for
;;; additional noise in the code object header.
-(!def-vm-support-routine select-component-format (component)
+(defun select-component-format (component)
(declare (type component component))
(dotimes (i code-constants-offset)
(vector-push-extend nil
(when nfp
(inst addq nfp (bytes-needed-for-non-descriptor-stack-frame) val)))))
+;;; Accessing a slot from an earlier stack frame is definite hackery.
+(define-vop (ancestor-frame-ref)
+ (:args (frame-pointer :scs (descriptor-reg))
+ (variable-home-tn :load-if nil))
+ (:results (value :scs (descriptor-reg any-reg)))
+ (:policy :fast-safe)
+ (:generator 4
+ (aver (sc-is variable-home-tn control-stack))
+ (loadw value frame-pointer (tn-offset variable-home-tn))))
+(define-vop (ancestor-frame-set)
+ (:args (frame-pointer :scs (descriptor-reg))
+ (value :scs (descriptor-reg any-reg)))
+ (:results (variable-home-tn :load-if nil))
+ (:policy :fast-safe)
+ (:generator 4
+ (aver (sc-is variable-home-tn control-stack))
+ (storew value frame-pointer (tn-offset variable-home-tn))))
+
(define-vop (xep-allocate-frame)
(:info start-lab copy-more-arg-follows)
(:ignore copy-more-arg-follows)
(:generator 1
;; Make sure the function is aligned, and drop a label pointing to
;; this function header.
- (align n-lowtag-bits)
+ (emit-alignment n-lowtag-bits)
(trace-table-entry trace-table-fun-prologue)
(emit-label start-lab)
;; Allocate function header.
;; Compute CODE from the address of this entry point.
(let ((entry-point (gen-label)))
(emit-label entry-point)
- (inst compute-code-from-fn code-tn lip-tn entry-point temp)
+ (inst compute-code-from-lip code-tn lip-tn entry-point temp)
;; ### We should also save it on the stack so that the garbage
;; collector won't forget about us if we call anyone else.
)
nvals)
(:temporary (:scs (non-descriptor-reg)) temp))
\f
+;;; This hook by the codegen lets us insert code before fall-thru entry points,
+;;; local-call entry points, and tail-call entry points. The default does
+;;; nothing.
+(defun emit-block-header (start-label trampoline-label fall-thru-p alignp)
+ (declare (ignore fall-thru-p alignp))
+ (when trampoline-label
+ (emit-label trampoline-label))
+ (emit-label start-label))
+
+\f
;;;; local call with unknown values convention return
;;; Non-TR local call for a fixed number of values passed according to the
(:vop-var vop)
(:info ,@(unless (or variable (eq return :tail)) '(arg-locs))
,@(unless variable '(nargs))
- ,@(when (eq return :fixed) '(nvals)))
+ ,@(when (eq return :fixed) '(nvals))
+ step-instrumenting)
(:ignore #!+gengc ,@(unless (eq return :tail) '(return-pc-pass))
,@(unless (or variable (eq return :tail)) '(arg-locs))
- ,@(unless variable '(args)))
+ ,@(unless variable '(args))
+ ;; Step instrumentation for full calls not implemented yet.
+ ;; See the PPC backend for an example.
+ step-instrumenting)
(:temporary (:sc descriptor-reg
:offset ocfp-offset
(define-full-reffer more-arg * 0 0 (descriptor-reg any-reg) * %more-arg)
;;; Turn &MORE arg (context, count) into a list.
-(defoptimizer (%listify-rest-args stack-allocate-result) ((&rest args))
- t)
-
(define-vop (listify-rest-args)
(:args (context-arg :target context :scs (descriptor-reg))
(count-arg :target count :scs (any-reg)))
(frob unknown-key-arg-error unknown-key-arg-error
sb!c::%unknown-key-arg-error key)
(frob nil-fun-returned-error nil-fun-returned-error nil fun))
+
+;;; Single-stepping
+
+(define-vop (step-instrument-before-vop)
+ (:policy :fast-safe)
+ (:vop-var vop)
+ (:generator 3
+ ;; Stub! See the PPC backend for an example.
+ (note-this-location vop :step-before-vop)))
projects / sbcl.git / blobdiff