;;; 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)
(if standard
(make-wired-tn *backend-t-primitive-type* register-arg-scn lra-offset)
(make-restricted-tn *backend-t-primitive-type* register-arg-scn)))
-;;; Make-Old-FP-Passing-Location -- Interface
-;;;
-;;; Similar to Make-Return-PC-Passing-Location, but makes a location to pass
-;;; Old-FP in. This is (obviously) wired in the standard convention, but is
-;;; totally unrestricted in non-standard conventions, since we can always fetch
-;;; it off of the stack using the arg pointer.
-;;;
+;;; This is similar to MAKE-RETURN-PC-PASSING-LOCATION, but makes a
+;;; location to pass OLD-FP in. This is (obviously) wired in the
+;;; 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)
(if standard
(make-wired-tn *fixnum-primitive-type* immediate-arg-scn ocfp-offset)
(make-normal-tn *fixnum-primitive-type*)))
-;;; Make-Old-FP-Save-Location, Make-Return-PC-Save-Location -- Interface
-;;;
-;;; 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.
-;;;
+;;; 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)
(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)
(specify-save-tn
(physenv-debug-live-tn (make-normal-tn *backend-t-primitive-type*) env)
(!def-vm-support-routine make-number-stack-pointer-tn ()
(make-normal-tn *fixnum-primitive-type*))
-;;; Make-Unknown-Values-Locations -- Interface
-;;;
-;;; Return a list of TNs that can be used to represent an unknown-values
+;;; 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 ()
(list (make-stack-pointer-tn)
(make-normal-tn *fixnum-primitive-type*)))
-
-;;; Select-Component-Format -- Interface
-;;;
-;;; This function is called by the Entry-Analyze phase, allowing
-;;; VM-dependent initialization of the IR2-Component structure. We push
+;;; This function is called by the ENTRY-ANALYZE phase, allowing
+;;; 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)
(declare (type component component))
(dotimes (i code-constants-offset)
\f
;;;; Frame hackery:
-;;; Return the number of bytes needed for the current non-descriptor stack
-;;; frame. Non-descriptor stack frames must be multiples of 16 bytes under
-;;; the PPC SVr4 ABI (though the EABI may be less restrictive.) Two words
-;;; are reserved for the stack backlink and saved LR (see SB!VM::NUMBER-STACK-
-;;; DISPLACEMENT.)
-;;;
-;;; Duh. PPC Linux (and VxWorks) adhere to the EABI.
-
;;; this is the first function in this file that differs materially from
;;; ../alpha/call.lisp
(defun bytes-needed-for-non-descriptor-stack-frame ()
- (logandc2 (+ 7 number-stack-displacement
- (* (sb-allocated-size 'non-descriptor-stack) sb!vm:n-word-bytes))
- 7))
+ (logandc2 (+ +stack-alignment-bytes+ number-stack-displacement
+ (* (sb-allocated-size 'non-descriptor-stack) n-word-bytes))
+ +stack-alignment-bytes+))
;;; Used for setting up the Old-FP in local call.
(emit-label start-lab)
;; Allocate function header.
(inst simple-fun-header-word)
- (dotimes (i (1- sb!vm:simple-fun-code-offset))
+ (dotimes (i (1- simple-fun-code-offset))
(inst word 0))
(let* ((entry-point (gen-label)))
(emit-label entry-point)
;;; Emit code needed at the return-point from an unknown-values call
-;;; for a fixed number of values. Values is the head of the TN-Ref
+;;; for a fixed number of values. Values is the head of the TN-REF
;;; list for the locations that the values are to be received into.
;;; Nvals is the number of values that are to be received (should
;;; equal the length of Values).
;;;
-;;; Move-Temp is a Descriptor-Reg TN used as a temporary.
+;;; MOVE-TEMP is a DESCRIPTOR-REG TN used as a temporary.
;;;
;;; This code exploits the fact that in the unknown-values convention,
;;; a single value return returns at the return PC + 8, whereas a
\f
;;;; Unknown values receiving:
-;;; Receive-Unknown-Values -- Internal
-;;;
;;; Emit code needed at the return point for an unknown-values call for an
;;; arbitrary number of values.
;;;
;;; arguments, we don't bother allocating a partial frame, and instead set FP
;;; to SP just before the call.
-;;; Define-Full-Call -- Internal
-;;;
;;; This macro helps in the definition of full call VOPs by avoiding code
;;; replication in defining the cross-product VOPs.
;;;
-;;; Name is the name of the VOP to define.
+;;; NAME is the name of the VOP to define.
;;;
-;;; Named is true if the first argument is a symbol whose global function
+;;; NAMED is true if the first argument is a symbol whose global function
;;; definition is to be called.
;;;
-;;; Return is either :Fixed, :Unknown or :Tail:
-;;; -- If :Fixed, then the call is for a fixed number of values, returned in
+;;; RETURN is either :FIXED, :UNKNOWN or :TAIL:
+;;; -- If :FIXED, then the call is for a fixed number of values, returned in
;;; the standard passing locations (passed as result operands).
-;;; -- If :Unknown, then the result values are pushed on the stack, and the
+;;; -- If :UNKNOWN, then the result values are pushed on the stack, and the
;;; result values are specified by the Start and Count as in the
;;; unknown-values continuation representation.
-;;; -- If :Tail, then do a tail-recursive call. No values are returned.
+;;; -- If :TAIL, then do a tail-recursive call. No values are returned.
;;; The Old-Fp and Return-PC are passed as the second and third arguments.
;;;
;;; In non-tail calls, the pointer to the stack arguments is passed as the last
-;;; fixed argument. If Variable is false, then the passing locations are
-;;; passed as a more arg. Variable is true if there are a variable number of
-;;; arguments passed on the stack. Variable cannot be specified with :Tail
+;;; fixed argument. If VARIABLE is false, then the passing locations are
+;;; passed as a more arg. VARIABLE is true if there are a variable number of
+;;; arguments passed on the stack. VARIABLE cannot be specified with :TAIL
;;; return. TR variable argument call is implemented separately.
;;;
;;; In tail call with fixed arguments, the passing locations are passed as a
;;; more arg, but there is no new-FP, since the arguments have been set up in
;;; the current frame.
-;;;
(defmacro define-full-call (name named return variable)
(assert (not (and variable (eq return :tail))))
`(define-vop (,name
(do-next-filler))
(constant
(loadw lexenv code-tn (tn-offset arg-fun)
- sb!vm:other-pointer-lowtag)
+ other-pointer-lowtag)
(do-next-filler)))
- (loadw function lexenv sb!vm:closure-fun-slot
- sb!vm:fun-pointer-lowtag)
+ (loadw function lexenv closure-fun-slot
+ fun-pointer-lowtag)
(do-next-filler)
(inst addi entry-point function
(- (ash simple-fun-code-offset word-shift)
(emit-label loop)
;; *--dst = *--src, --count
- (inst addi src src (- sb!vm:n-word-bytes))
+ (inst addi src src (- n-word-bytes))
(inst addic. count count (- (fixnumize 1)))
(loadw temp src)
- (inst addi dst dst (- sb!vm:n-word-bytes))
+ (inst addi dst dst (- n-word-bytes))
(storew temp dst)
(inst bgt loop)
projects / sbcl.git / blobdiff