(defpackage :sb-introspect
(:use "CL")
- (:export "FUNCTION-ARGLIST"
+ (:export "ALLOCATION-INFORMATION"
+ "FUNCTION-ARGLIST"
+ "FUNCTION-LAMBDA-LIST"
+ "DEFTYPE-LAMBDA-LIST"
"VALID-FUNCTION-NAME-P"
"FIND-DEFINITION-SOURCE"
"FIND-DEFINITION-SOURCES-BY-NAME"
(declaim (ftype (function (function) debug-info) function-debug-info))
(defun function-debug-info (function)
- (let* ((function-object (sb-kernel::%closure-fun function))
+ (let* ((function-object (sb-kernel::%fun-fun function))
(function-header (sb-kernel:fun-code-header function-object)))
(sb-kernel:%code-debug-info function-header)))
(not (eq type :generic-function)))
(find-definition-source fun)))))
((:type)
- (let ((expander-fun (sb-int:info :type :expander name)))
- (when expander-fun
- (find-definition-source expander-fun))))
+ ;; Source locations for types are saved separately when the expander
+ ;; is a closure without a good source-location.
+ (let ((loc (sb-int:info :type :source-location name)))
+ (if loc
+ (translate-source-location loc)
+ (let ((expander-fun (sb-int:info :type :expander name)))
+ (when expander-fun
+ (find-definition-source expander-fun))))))
((:method)
(when (fboundp name)
(let ((fun (real-fdefinition name)))
(find-definition-source class)))))
((:method-combination)
(let ((combination-fun
- (ignore-errors (find-method #'sb-mop:find-method-combination
- nil
- (list (find-class 'generic-function)
- (list 'eql name)
- t)))))
+ (find-method #'sb-mop:find-method-combination
+ nil
+ (list (find-class 'generic-function)
+ (list 'eql name)
+ t)
+ nil)))
(when combination-fun
(find-definition-source combination-fun))))
((:package)
(tlf (if debug-fun (sb-c::compiled-debug-fun-tlf-number debug-fun))))
(make-definition-source
:pathname
- (if (eql (sb-c::debug-source-from debug-source) :file)
- (parse-namestring (sb-c::debug-source-name debug-source)))
+ ;; KLUDGE: at the moment, we don't record the correct toplevel
+ ;; form number for forms processed by EVAL (including EVAL-WHEN
+ ;; :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)))
:character-offset
(if tlf
(elt (sb-c::debug-source-start-positions debug-source) tlf))
;; FIXME there may be other structure predicate functions
(member self (list *struct-predicate*))))
-;;; FIXME: maybe this should be renamed as FUNCTION-LAMBDA-LIST?
(defun function-arglist (function)
+ "Deprecated alias for FUNCTION-LAMBDA-LIST."
+ (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, and generic functions. Signals error if
-not found"
+Works for special-operators, macros, simple functions, interpreted functions,
+and generic functions. Signals an error if FUNCTION is not a valid extended
+function designator."
(cond ((valid-function-name-p function)
- (function-arglist (or (and (symbolp function)
- (macro-function function))
- (fdefinition function))))
+ (function-lambda-list (or (and (symbolp function)
+ (macro-function function))
+ (fdefinition function))))
((typep function 'generic-function)
(sb-pcl::generic-function-pretty-arglist function))
#+sb-eval
((typep function 'sb-eval:interpreted-function)
(sb-eval:interpreted-function-lambda-list function))
- (t (sb-kernel:%simple-fun-arglist (sb-kernel:%fun-fun function)))))
+ (t
+ (sb-kernel:%simple-fun-arglist (sb-kernel:%fun-fun function)))))
+
+(defun deftype-lambda-list (typespec-operator)
+ "Returns the lambda list of TYPESPEC-OPERATOR as first return
+value, and a flag whether the arglist could be found as second
+value."
+ (sb-int:info :type :lambda-list typespec-operator))
(defun struct-accessor-structure-class (function)
(let ((self (sb-vm::%simple-fun-self function)))
((or null sb-impl::funcallable-instance)
nil)
(function
- (sb-kernel::%closure-fun functoid))))
+ (sb-kernel::%fun-fun functoid))))
(defun collect-xref (kind-index wanted-name)
(let ((ret nil))
;; from the table if available.
(let* ((simple-fun (get-simple-fun value))
(xrefs (when simple-fun
- (sb-vm::%simple-fun-xrefs simple-fun)))
+ (sb-kernel:%simple-fun-xrefs simple-fun)))
(array (when xrefs
(aref xrefs kind-index))))
;; Loop through the name/path xref entries in the table
definition-source pairs."
(collect-xref #.(position :macroexpands sb-c::*xref-kinds*) macro-name))
+;;;; ALLOCATION INTROSPECTION
+
+(defun allocation-information (object)
+ #+sb-doc
+ "Returns information about the allocation of OBJECT. Primary return value
+indicates the general type of allocation: :IMMEDIATE, :HEAP, :STACK,
+or :FOREIGN.
+
+Possible secondary return value provides additional information about the
+allocation.
+
+For :HEAP objects the secondary value is a plist:
+
+ :SPACE
+ Inficates the heap segment the object is allocated in.
+
+ :GENERATION
+ Is the current generation of the object: 0 for nursery, 6 for pseudo-static
+ generation loaded from core. (GENCGC and :SPACE :DYNAMIC only.)
+
+ :LARGE
+ Indicates a \"large\" object subject to non-copying
+ promotion. (GENCGC and :SPACE :DYNAMIC only.)
+
+ :PINNED
+ Indicates that the page(s) on which the object resides are kept live due
+ to conservative references. Note that object may reside on a pinned page
+ 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.)
+
+For :STACK objects secondary value is the thread on whose stack the object is
+allocated.
+
+Expected use-cases include introspection to gain insight into allocation and
+GC behaviour and restricting memoization to heap-allocated arguments.
+
+Experimental: interface subject to change."
+ ;; FIXME: Would be nice to provide the size of the object as well, though
+ ;; maybe that should be a separate function, and something like MAP-PARTS
+ ;; for mapping over parts of arbitrary objects so users can get "deep sizes"
+ ;; as well if they want to.
+ ;;
+ ;; FIXME: For the memoization use-case possibly we should also provide a
+ ;; simpler HEAP-ALLOCATED-P, since that doesn't require disabling the GC
+ ;; scanning threads for negative answers? Similarly, STACK-ALLOCATED-P for
+ ;; checking if an object has been stack-allocated by a given thread for
+ ;; testing purposes might not come amiss.
+ (if (typep object '(or fixnum character))
+ (values :immediate nil)
+ (let ((plist
+ (sb-sys:without-gcing
+ ;; Disable GC so the object cannot move to another page while
+ ;; we have the address.
+ (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))
+ :read-only)
+ ((< sb-vm:static-space-start addr
+ (* sb-vm:*static-space-free-pointer*
+ sb-vm:n-word-bytes))
+ :static)
+ ((< (sb-kernel:current-dynamic-space-start) addr
+ (sb-sys:sap-int (sb-kernel:dynamic-space-free-pointer)))
+ :dynamic))))
+ (when space
+ #+gencgc
+ (if (eq :dynamic space)
+ (let ((index (sb-vm::find-page-index addr)))
+ (symbol-macrolet ((page (sb-alien:deref sb-vm::page-table index)))
+ (let ((flags (sb-alien:slot page 'sb-vm::flags)))
+ (list :space space
+ :generation (sb-alien:slot page 'sb-vm::gen)
+ :write-protected (logbitp 0 flags)
+ :pinned (logbitp 5 flags)
+ :large (logbitp 6 flags)))))
+ (list :space space))
+ #-gencgc
+ (list :space space))))))
+ (cond (plist
+ (values :heap plist))
+ (t
+ (let ((sap (sb-sys:int-sap (sb-kernel:get-lisp-obj-address object))))
+ ;; FIXME: Check other stacks as well.
+ #+sb-thread
+ (dolist (thread (sb-thread:list-all-threads))
+ (let ((c-start (sb-di::descriptor-sap
+ (sb-thread::%symbol-value-in-thread
+ 'sb-vm:*control-stack-start*
+ thread)))
+ (c-end (sb-di::descriptor-sap
+ (sb-thread::%symbol-value-in-thread
+ 'sb-vm:*control-stack-end*
+ thread))))
+ (when (and c-start c-end)
+ (when (and (sb-sys:sap<= c-start sap)
+ (sb-sys:sap< sap c-end))
+ (return-from allocation-information
+ (values :stack thread))))))
+ #-sb-thread
+ (when (sb-vm:control-stack-pointer-valid-p sap nil)
+ (return-from allocation-information
+ (values :stack sb-thread::*current-thread*))))
+ :foreign)))))
+
(provide 'sb-introspect)
projects / sbcl.git / blobdiff