;;; TODO
;;; 1) structs don't have within-file location info. problem for the
-;;; structure itself, accessors and the predicate
+;;; structure itself, accessors, the copier and the predicate
;;; 3) error handling. Signal random errors, or handle and resignal 'our'
;;; error, or return NIL?
;;; 4) FIXMEs
(:export "ALLOCATION-INFORMATION"
"FUNCTION-ARGLIST"
"FUNCTION-LAMBDA-LIST"
+ "FUNCTION-TYPE"
"DEFTYPE-LAMBDA-LIST"
"VALID-FUNCTION-NAME-P"
"FIND-DEFINITION-SOURCE"
"DEFINITION-NOT-FOUND" "DEFINITION-NAME"
"FIND-FUNCTION-CALLEES"
"FIND-FUNCTION-CALLERS"
+ "MAP-ROOT"
"WHO-BINDS"
"WHO-CALLS"
"WHO-REFERENCES"
(elt (sb-c::compiled-debug-info-fun-map debug-info) 0))
(defun valid-function-name-p (name)
- "True if NAME denotes a function name that can be passed to MACRO-FUNCTION or FDEFINITION "
+ "True if NAME denotes a valid function name, ie. one that can be passed to
+FBOUNDP."
(and (sb-int:valid-function-name-p name) t))
;;;; Finding definitions
((:function :generic-function)
(when (and (fboundp name)
(or (not (symbolp name))
- (not (macro-function name))))
+ (not (macro-function name))
+ (special-operator-p name)))
(let ((fun (real-fdefinition name)))
(when (eq (not (typep fun 'generic-function))
(not (eq type :generic-function)))
((struct-predicate-p object)
(find-definition-source
(struct-predicate-structure-class object)))
+ ((struct-copier-p object)
+ (find-definition-source
+ (struct-copier-structure-class object)))
(t
(find-function-definition-source object))))
((or condition standard-object structure-object)
;; :COMPILE-TOPLEVEL). Until that's fixed, don't return a
;; DEFINITION-SOURCE with a pathname. (When that's fixed, take
;; out the (not (debug-source-form ...)) test.
- (if (and (sb-c::debug-source-namestring debug-source)
- (not (sb-c::debug-source-form debug-source)))
- (parse-namestring (sb-c::debug-source-namestring debug-source)))
+ (when (stringp (sb-c::debug-source-namestring debug-source))
+ (parse-namestring (sb-c::debug-source-namestring debug-source)))
:character-offset
(if tlf
(elt (sb-c::debug-source-start-positions debug-source) tlf))
(sb-vm::%simple-fun-self #'(setf definition-source-pathname)))
(defvar *struct-predicate*
(sb-vm::%simple-fun-self #'definition-source-p))
+(defvar *struct-copier*
+ (sb-vm::%simple-fun-self #'copy-definition-source))
(defun struct-accessor-p (function)
(let ((self (sb-vm::%simple-fun-self function)))
(member self (list *struct-slotplace-reader*
*struct-slotplace-writer*))))
+(defun struct-copier-p (function)
+ (let ((self (sb-vm::%simple-fun-self function)))
+ ;; FIXME there may be other structure copier functions
+ (member self (list *struct-copier*))))
+
(defun struct-predicate-p (function)
(let ((self (sb-vm::%simple-fun-self function)))
;; FIXME there may be other structure predicate functions
(member self (list *struct-predicate*))))
-(defun function-arglist (function)
- "Deprecated alias for FUNCTION-LAMBDA-LIST."
+(sb-int:define-deprecated-function :late "1.0.24.5" function-arglist function-lambda-list
+ (function)
(function-lambda-list function))
-(define-compiler-macro function-arglist (function)
- (sb-int:deprecation-warning 'function-arglist 'function-lambda-list)
- `(function-lambda-list ,function))
-
(defun function-lambda-list (function)
"Describe the lambda list for the extended function designator FUNCTION.
Works for special-operators, macros, simple functions, interpreted functions,
(sb-int:info :type :lambda-list typespec-operator))))
(t (values nil nil))))
+(defun function-type (function-designator)
+ "Returns the ftype of FUNCTION-DESIGNATOR, or NIL."
+ (flet ((ftype-of (function-designator)
+ (sb-kernel:type-specifier
+ (sb-int:info :function :type function-designator))))
+ (etypecase function-designator
+ (symbol
+ (when (and (fboundp function-designator)
+ (not (macro-function function-designator))
+ (not (special-operator-p function-designator)))
+ (ftype-of function-designator)))
+ (cons
+ (when (and (sb-int:legal-fun-name-p function-designator)
+ (fboundp function-designator))
+ (ftype-of function-designator)))
+ (generic-function
+ (function-type (sb-pcl:generic-function-name function-designator)))
+ (function
+ ;; Give declared type in globaldb priority over derived type
+ ;; because it contains more accurate information e.g. for
+ ;; struct-accessors.
+ (let ((type (function-type (sb-kernel:%fun-name
+ (sb-impl::%fun-fun function-designator)))))
+ (if type
+ type
+ (sb-impl::%fun-type function-designator)))))))
+
+;;; FIXME: These three are pretty terrible. Can we place have some proper metadata
+;;; instead.
+
(defun struct-accessor-structure-class (function)
(let ((self (sb-vm::%simple-fun-self function)))
(cond
(sb-kernel:%closure-index-ref function 1)))))
)))
+(defun struct-copier-structure-class (function)
+ (let ((self (sb-vm::%simple-fun-self function)))
+ (cond
+ ((member self (list *struct-copier*))
+ (find-class
+ (sb-kernel::classoid-name
+ (sb-kernel::layout-classoid
+ (sb-kernel:%closure-index-ref function 0)))))
+ )))
+
(defun struct-predicate-structure-class (function)
(let ((self (sb-vm::%simple-fun-self function)))
(cond
(loop for i from 0 below (length array) by 2
for xref-name = (aref array i)
for xref-path = (aref array (1+ i))
- do (when (eql xref-name wanted-name)
+ do (when (equal xref-name wanted-name)
(let ((source-location
(find-function-definition-source simple-fun)))
;; Use the more accurate source path from
even if :PINNED in NIL if the GC has not had the need to mark the the page
as pinned. (GENCGC and :SPACE :DYNAMIC only.)
+ :WRITE-PROTECTED
+ Indicates that the page on which the object starts is write-protected,
+ which indicates for :BOXED objects that it hasn't been written to since
+ the last GC of its generation. (GENCGC and :SPACE :DYNAMIC only.)
+
+ :PAGE
+ The index of the page the object resides on. (GENGC and :SPACE :DYNAMIC
+ only.)
+
For :STACK objects secondary value is the thread on whose stack the object is
allocated.
(let* ((addr (sb-kernel:get-lisp-obj-address object))
(space
(cond ((< sb-vm:read-only-space-start addr
- (* sb-vm:*read-only-space-free-pointer*
- sb-vm:n-word-bytes))
+ (ash sb-vm:*read-only-space-free-pointer*
+ sb-vm:n-fixnum-tag-bits))
:read-only)
((< sb-vm:static-space-start addr
- (* sb-vm:*static-space-free-pointer*
- sb-vm:n-word-bytes))
+ (ash sb-vm:*static-space-free-pointer*
+ sb-vm:n-fixnum-tag-bits))
:static)
((< (sb-kernel:current-dynamic-space-start) addr
(sb-sys:sap-int (sb-kernel:dynamic-space-free-pointer)))
:write-protected (logbitp 0 flags)
:boxed (logbitp 2 flags)
:pinned (logbitp 5 flags)
- :large (logbitp 6 flags)))))
+ :large (logbitp 6 flags)
+ :page index))))
(list :space space))
#-gencgc
(list :space space))))))
(values :stack sb-thread::*current-thread*))))
:foreign)))))
+(defun map-root (function object &key simple (ext t))
+ "Call FUNCTION with all non-immediate objects pointed to by OBJECT.
+Returns OBJECT.
+
+If SIMPLE is true (default is NIL), elides those pointers that are not
+notionally part of certain built-in objects, but backpointers to a
+conceptual parent: eg. elides the pointer from a SYMBOL to the
+corresponding PACKAGE.
+
+If EXT is true (default is T), includes some pointers that are not
+actually contained in the object, but found in certain well-known
+indirect containers: FDEFINITIONs, EQL specializers, classes, and
+thread-local symbol values in other threads fall into this category.
+
+NOTE: calling MAP-ROOT with a THREAD does not currently map over
+conservative roots from the thread registers and interrupt contexts.
+
+Experimental: interface subject to change."
+ (let ((fun (coerce function 'function))
+ (seen (sb-int:alloc-xset)))
+ (flet ((call (part)
+ (when (and (member (sb-kernel:lowtag-of part)
+ `(,sb-vm:instance-pointer-lowtag
+ ,sb-vm:list-pointer-lowtag
+ ,sb-vm:fun-pointer-lowtag
+ ,sb-vm:other-pointer-lowtag))
+ (not (sb-int:xset-member-p part seen)))
+ (sb-int:add-to-xset part seen)
+ (funcall fun part))))
+ (when ext
+ (let ((table sb-pcl::*eql-specializer-table*))
+ (call (sb-int:with-locked-system-table (table)
+ (gethash object table)))))
+ (etypecase object
+ ((or bignum float sb-sys:system-area-pointer fixnum))
+ (sb-ext:weak-pointer
+ (call (sb-ext:weak-pointer-value object)))
+ (cons
+ (call (car object))
+ (call (cdr object))
+ (when (and ext (ignore-errors (fboundp object)))
+ (call (fdefinition object))))
+ (ratio
+ (call (numerator object))
+ (call (denominator object)))
+ (complex
+ (call (realpart object))
+ (call (realpart object)))
+ (sb-vm::instance
+ (let* ((len (sb-kernel:%instance-length object))
+ (nuntagged (if (typep object 'structure-object)
+ (sb-kernel:layout-n-untagged-slots
+ (sb-kernel:%instance-layout object))
+ 0)))
+ (dotimes (i (- len nuntagged))
+ (call (sb-kernel:%instance-ref object i))))
+ #+sb-thread
+ (when (typep object 'sb-thread:thread)
+ (cond ((eq object sb-thread:*current-thread*)
+ (dolist (value (sb-thread::%thread-local-references))
+ (call value))
+ (sb-vm::map-stack-references #'call))
+ (t
+ ;; KLUDGE: INTERRUPT-THREAD is Not Nice (tm), but
+ ;; the alternative would be stopping the world...
+ #+sb-thread
+ (let ((sem (sb-thread:make-semaphore))
+ (refs nil))
+ (handler-case
+ (progn
+ (sb-thread:interrupt-thread
+ object
+ (lambda ()
+ (setf refs (sb-thread::%thread-local-references))
+ (sb-vm::map-stack-references (lambda (x) (push x refs)))
+ (sb-thread:signal-semaphore sem)))
+ (sb-thread:wait-on-semaphore sem))
+ (sb-thread:interrupt-thread-error ()))
+ (mapc #'call refs))))))
+ (array
+ (if (simple-vector-p object)
+ (dotimes (i (length object))
+ (call (aref object i)))
+ (when (sb-kernel:array-header-p object)
+ (call (sb-kernel::%array-data-vector object))
+ (call (sb-kernel::%array-displaced-p object))
+ (unless simple
+ (call (sb-kernel::%array-displaced-from object))))))
+ (sb-kernel:code-component
+ (call (sb-kernel:%code-entry-points object))
+ (call (sb-kernel:%code-debug-info object))
+ (loop for i from sb-vm:code-constants-offset
+ below (sb-kernel:get-header-data object)
+ do (call (sb-kernel:code-header-ref object i))))
+ (sb-kernel:fdefn
+ (call (sb-kernel:fdefn-name object))
+ (call (sb-kernel:fdefn-fun object)))
+ (sb-kernel:simple-fun
+ (unless simple
+ (call (sb-kernel:%simple-fun-next object)))
+ (call (sb-kernel:fun-code-header object))
+ (call (sb-kernel:%simple-fun-name object))
+ (call (sb-kernel:%simple-fun-arglist object))
+ (call (sb-kernel:%simple-fun-type object))
+ (call (sb-kernel:%simple-fun-info object)))
+ (sb-kernel:closure
+ (call (sb-kernel:%closure-fun object))
+ (sb-kernel:do-closure-values (x object)
+ (call x)))
+ (sb-kernel:funcallable-instance
+ (call (sb-kernel:%funcallable-instance-function object))
+ (loop for i from 1 below (- (1+ (sb-kernel:get-closure-length object))
+ sb-vm::funcallable-instance-info-offset)
+ do (call (sb-kernel:%funcallable-instance-info object i))))
+ (symbol
+ (when ext
+ (dolist (thread (sb-thread:list-all-threads))
+ (call (sb-thread:symbol-value-in-thread object thread nil))))
+ (handler-case
+ ;; We don't have GLOBAL-BOUNDP, and there's no ERRORP arg.
+ (call (sb-ext:symbol-global-value object))
+ (unbound-variable ()))
+ (when (and ext (ignore-errors (fboundp object)))
+ (call (fdefinition object))
+ (call (macro-function object))
+ (let ((class (find-class object nil)))
+ (when class (call class))))
+ (call (symbol-plist object))
+ (call (symbol-name object))
+ (unless simple
+ (call (symbol-package object))))
+ (sb-kernel::random-class
+ (case (sb-kernel:widetag-of object)
+ (#.sb-vm::value-cell-header-widetag
+ (call (sb-kernel::value-cell-ref object)))
+ (t
+ (warn "~&MAP-ROOT: Unknown widetag ~S: ~S~%"
+ (sb-kernel:widetag-of object) object)))))))
+ object)
projects / sbcl.git / blobdiff