;;; duplicate COMPILED-DEBUG-FUN structures.
(defvar *compiled-debug-funs* (make-hash-table :test 'eq))
-;;; Make a COMPILED-DEBUG-FUN for a SB!C::COMPILER-DEBUG-FUN
-;;; and its component. This maps the latter to the former in
-;;; *COMPILED-DEBUG-FUNS*. If there already is a
-;;; COMPILED-DEBUG-FUN, then this returns it from
-;;; *COMPILED-DEBUG-FUNS*.
+;;; Make a COMPILED-DEBUG-FUN for a SB!C::COMPILER-DEBUG-FUN and its
+;;; component. This maps the latter to the former in
+;;; *COMPILED-DEBUG-FUNS*. If there already is a COMPILED-DEBUG-FUN,
+;;; then this returns it from *COMPILED-DEBUG-FUNS*.
+;;;
+;;; FIXME: It seems this table can potentially grow without bounds,
+;;; and retains roots to functions that might otherwise be collected.
(defun make-compiled-debug-fun (compiler-debug-fun component)
- (or (gethash compiler-debug-fun *compiled-debug-funs*)
- (setf (gethash compiler-debug-fun *compiled-debug-funs*)
- (%make-compiled-debug-fun compiler-debug-fun component))))
+ (let ((table *compiled-debug-funs*))
+ (with-locked-hash-table (table)
+ (or (gethash compiler-debug-fun table)
+ (setf (gethash compiler-debug-fun table)
+ (%make-compiled-debug-fun compiler-debug-fun component))))))
(defstruct (bogus-debug-fun
(:include debug-fun)
((not (frame-p frame)))
(setf (frame-number frame) number)))
+(defun find-saved-frame-down (fp up-frame)
+ (multiple-value-bind (saved-fp saved-pc) (sb!c:find-saved-fp-and-pc fp)
+ (when saved-fp
+ (compute-calling-frame (descriptor-sap saved-fp) saved-pc up-frame))))
+
;;; Return the frame immediately below FRAME on the stack; or when
;;; FRAME is the bottom of the stack, return NIL.
(defun frame-down (frame)
(when (control-stack-pointer-valid-p fp)
#!+(or x86 x86-64)
(multiple-value-bind (ok ra ofp) (x86-call-context fp)
- (and ok
- (compute-calling-frame ofp ra frame)))
+ (if ok
+ (compute-calling-frame ofp ra frame)
+ (find-saved-frame-down fp frame)))
#!-(or x86 x86-64)
(compute-calling-frame
#!-alpha
;; pointer
#!+(or x86 x86-64)
(not (zerop (valid-lisp-pointer-p (int-sap val))))
- ;; FIXME: There is no fundamental reason not to use the above
- ;; function on other platforms as well, but I didn't have
- ;; others available while doing this. --NS 2007-06-21
- #!-(or x86 x86-64)
- (and (logbitp 0 val)
- (or (< sb!vm:read-only-space-start val
- (* sb!vm:*read-only-space-free-pointer*
- sb!vm:n-word-bytes))
- (< sb!vm:static-space-start val
- (* sb!vm:*static-space-free-pointer*
- sb!vm:n-word-bytes))
- (< (current-dynamic-space-start) val
- (sap-int (dynamic-space-free-pointer))))))
+ ;; FIXME: There is no fundamental reason not to use the above
+ ;; function on other platforms as well, but I didn't have
+ ;; others available while doing this. --NS 2007-06-21
+ #!-(or x86 x86-64)
+ (and (logbitp 0 val)
+ (or (< sb!vm:read-only-space-start val
+ (* sb!vm:*read-only-space-free-pointer*
+ sb!vm:n-word-bytes))
+ (< sb!vm:static-space-start val
+ (* sb!vm:*static-space-free-pointer*
+ sb!vm:n-word-bytes))
+ (< (current-dynamic-space-start) val
+ (sap-int (dynamic-space-free-pointer))))))
(values (%make-lisp-obj val) t)
(if errorp
(error "~S is not a valid argument to ~S"
;;; Given the DEFUN, 3 gets you the LET, 1 gets you the bindings, 0
;;; gets the first binding, and 1 gets the AREF form.
-;;; temporary buffer used to build form-number => source-path translation in
-;;; FORM-NUMBER-TRANSLATIONS
-(defvar *form-number-temp* (make-array 10 :fill-pointer 0 :adjustable t))
-
-;;; table used to detect CAR circularities in FORM-NUMBER-TRANSLATIONS
-(defvar *form-number-circularity-table* (make-hash-table :test 'eq))
-
;;; This returns a table mapping form numbers to source-paths. A
;;; source-path indicates a descent into the TOPLEVEL-FORM form,
;;; going directly to the subform corressponding to the form number.
;;; NODE-SOURCE-PATH; that is, the first element is the form number and
;;; the last is the TOPLEVEL-FORM number.
(defun form-number-translations (form tlf-number)
- (clrhash *form-number-circularity-table*)
- (setf (fill-pointer *form-number-temp*) 0)
- (sub-translate-form-numbers form (list tlf-number))
- (coerce *form-number-temp* 'simple-vector))
-(defun sub-translate-form-numbers (form path)
- (unless (gethash form *form-number-circularity-table*)
- (setf (gethash form *form-number-circularity-table*) t)
- (vector-push-extend (cons (fill-pointer *form-number-temp*) path)
- *form-number-temp*)
- (let ((pos 0)
- (subform form)
- (trail form))
- (declare (fixnum pos))
- (macrolet ((frob ()
- '(progn
- (when (atom subform) (return))
- (let ((fm (car subform)))
- (when (consp fm)
- (sub-translate-form-numbers fm (cons pos path)))
- (incf pos))
- (setq subform (cdr subform))
- (when (eq subform trail) (return)))))
- (loop
- (frob)
- (frob)
- (setq trail (cdr trail)))))))
+ (let ((seen nil)
+ (translations (make-array 12 :fill-pointer 0 :adjustable t)))
+ (labels ((translate1 (form path)
+ (unless (member form seen)
+ (push form seen)
+ (vector-push-extend (cons (fill-pointer translations) path)
+ translations)
+ (let ((pos 0)
+ (subform form)
+ (trail form))
+ (declare (fixnum pos))
+ (macrolet ((frob ()
+ '(progn
+ (when (atom subform) (return))
+ (let ((fm (car subform)))
+ (when (consp fm)
+ (translate1 fm (cons pos path)))
+ (incf pos))
+ (setq subform (cdr subform))
+ (when (eq subform trail) (return)))))
+ (loop
+ (frob)
+ (frob)
+ (setq trail (cdr trail))))))))
+ (translate1 form (list tlf-number)))
+ (coerce translations 'simple-vector)))
;;; FORM is a top level form, and path is a source-path into it. This
;;; returns the form indicated by the source-path. Context is the
;;; This maps bogus-lra-components to cookies, so that
;;; HANDLE-FUN-END-BREAKPOINT can find the appropriate cookie for the
;;; breakpoint hook.
-(defvar *fun-end-cookies* (make-hash-table :test 'eq))
+(defvar *fun-end-cookies* (make-hash-table :test 'eq :synchronized t))
;;; This returns a hook function for the start helper breakpoint
;;; associated with a :FUN-END breakpoint. The returned function
;;;; breakpoint handlers (layer between C and exported interface)
;;; This maps components to a mapping of offsets to BREAKPOINT-DATAs.
-(defvar *component-breakpoint-offsets* (make-hash-table :test 'eq))
+(defvar *component-breakpoint-offsets* (make-hash-table :test 'eq :synchronized t))
;;; This returns the BREAKPOINT-DATA object associated with component cross
;;; offset. If none exists, this makes one, installs it, and returns it.
;;; We use this when there are no longer any active breakpoints
;;; corresponding to DATA.
(defun delete-breakpoint-data (data)
+ ;; Again, this looks brittle. Is there no danger of being interrupted
+ ;; here?
(let* ((component (breakpoint-data-component data))
(offsets (delete (breakpoint-data-offset data)
(gethash component *component-breakpoint-offsets*)
;;; [old C code] or HANDLE-FUN-END-BREAKPOINT calls this directly
;;; [new C code].
(defun handle-fun-end-breakpoint-aux (breakpoints data signal-context)
+ ;; FIXME: This looks brittle: what if we are interrupted somewhere
+ ;; here? ...or do we have interrupts disabled here?
(delete-breakpoint-data data)
(let* ((scp
(locally
(trap-loc (foreign-symbol-sap "fun_end_breakpoint_trap"))
(length (sap- src-end src-start))
(code-object
- (%primitive sb!c:allocate-code-object (1+ bogus-lra-constants)
- length))
+ (sb!c:allocate-code-object (1+ bogus-lra-constants) length))
(dst-start (code-instructions code-object)))
(declare (type system-area-pointer
src-start src-end dst-start trap-loc)
;; sense in signaling the condition.
(when step-info
(let ((*step-frame*
- #+(or x86 x86-64)
+ #!+(or x86 x86-64)
(signal-context-frame (sb!alien::alien-sap context))
- #-(or x86 x86-64)
+ #!-(or x86 x86-64)
;; KLUDGE: Use the first non-foreign frame as the
;; *STACK-TOP-HINT*. Getting the frame from the signal
;; context as on x86 would be cleaner, but
projects / sbcl.git / blobdiff