(no-debug-fun-returns-debug-fun condition))))
(format stream
"~&Cannot return values from ~:[frame~;~:*~S~] since ~
- the debug information lacks details about returning ~
- values here."
+ the debug information lacks details about returning ~
+ values here."
fun)))))
(define-condition no-debug-blocks (debug-condition)
;;;; frames
;;; This is used in FIND-ESCAPED-FRAME and with the bogus components
-;;; and LRAs used for :FUN-END breakpoints. When a components
+;;; and LRAs used for :FUN-END breakpoints. When a component's
;;; debug-info slot is :BOGUS-LRA, then the REAL-LRA-SLOT contains the
;;; real component to continue executing, as opposed to the bogus
;;; component which appeared in some frame's LRA location.
#!-sb-fluid (declaim (inline control-stack-pointer-valid-p))
(defun control-stack-pointer-valid-p (x)
(declare (type system-area-pointer x))
- #!-stack-grows-downward-not-upward
- (and (sap< x (current-sp))
- (sap<= (int-sap control-stack-start)
- x)
- (zerop (logand (sap-int x) #b11)))
- #!+stack-grows-downward-not-upward
- (and (sap>= x (current-sp))
- (sap> (int-sap control-stack-end) x)
- (zerop (logand (sap-int x) #b11))))
+ (let* (#!-stack-grows-downward-not-upward
+ (control-stack-start
+ (descriptor-sap *control-stack-start*))
+ #!+stack-grows-downward-not-upward
+ (control-stack-end
+ (descriptor-sap *control-stack-end*)))
+ #!-stack-grows-downward-not-upward
+ (and (sap< x (current-sp))
+ (sap<= control-stack-start x)
+ (zerop (logand (sap-int x) #b11)))
+ #!+stack-grows-downward-not-upward
+ (and (sap>= x (current-sp))
+ (sap> control-stack-end x)
+ (zerop (logand (sap-int x) #b11)))))
-#!+x86
(sb!alien:define-alien-routine component-ptr-from-pc (system-area-pointer)
(pc system-area-pointer))
-#!+x86
(defun component-from-component-ptr (component-ptr)
(declare (type system-area-pointer component-ptr))
(make-lisp-obj (logior (sap-int component-ptr)
(when (control-stack-pointer-valid-p fp)
#!+x86
(multiple-value-bind (ra ofp) (x86-call-context fp)
- (compute-calling-frame ofp ra frame))
+ (and ra (compute-calling-frame ofp ra frame)))
#!-x86
(compute-calling-frame
#!-alpha
(#.lra-save-offset
(setf (sap-ref-sap pointer (- (* (1+ stack-slot) 4))) value))))))
+(defun foreign-function-backtrace-name (sap)
+ (let ((name (foreign-symbol-in-address sap)))
+ (if name
+ (format nil "foreign function: ~A" name)
+ (format nil "foreign function: #x~X" (sap-int sap)))))
+
;;; This returns a frame for the one existing in time immediately
;;; prior to the frame referenced by current-fp. This is current-fp's
;;; caller or the next frame down the control stack. If there is no
"undefined function"))
(:foreign-function
(make-bogus-debug-fun
- "foreign function call land"))
+ (foreign-function-backtrace-name
+ (int-sap (get-lisp-obj-address lra)))))
((nil)
(make-bogus-debug-fun
"bogus stack frame"))
"undefined function"))
(:foreign-function
(make-bogus-debug-fun
- "foreign function call land"))
+ (foreign-function-backtrace-name ra)))
((nil)
(make-bogus-debug-fun
"bogus stack frame"))
(if up-frame (1+ (frame-number up-frame)) 0)
escaped)))))
+(defun nth-interrupt-context (n)
+ (declare (type (unsigned-byte 32) n)
+ (optimize (speed 3) (safety 0)))
+ (sb!alien:sap-alien (sb!vm::current-thread-offset-sap
+ (+ sb!vm::thread-interrupt-contexts-offset n))
+ (* os-context-t)))
+
#!+x86
(defun find-escaped-frame (frame-pointer)
(declare (type system-area-pointer frame-pointer))
(/noshow0 "entering FIND-ESCAPED-FRAME")
(dotimes (index *free-interrupt-context-index* (values nil 0 nil))
- (sb!alien:with-alien
- ((lisp-interrupt-contexts (array (* os-context-t) nil) :extern))
(/noshow0 "at head of WITH-ALIEN")
- (let ((context (sb!alien:deref lisp-interrupt-contexts index)))
+ (let ((context (nth-interrupt-context index)))
(/noshow0 "got CONTEXT")
(when (= (sap-int frame-pointer)
(sb!vm:context-register context sb!vm::cfp-offset))
pc-offset code))
(/noshow0 "returning from FIND-ESCAPED-FRAME")
(return
- (values code pc-offset context))))))))))
+ (values code pc-offset context)))))))))
#!-x86
(defun find-escaped-frame (frame-pointer)
(declare (type system-area-pointer frame-pointer))
(dotimes (index *free-interrupt-context-index* (values nil 0 nil))
- (sb!alien:with-alien
- ((lisp-interrupt-contexts (array (* os-context-t) nil) :extern))
- (let ((scp (sb!alien:deref lisp-interrupt-contexts index)))
- (when (= (sap-int frame-pointer)
- (sb!vm:context-register scp sb!vm::cfp-offset))
- (without-gcing
- (let ((code (code-object-from-bits
- (sb!vm:context-register scp sb!vm::code-offset))))
- (when (symbolp code)
- (return (values code 0 scp)))
- (let* ((code-header-len (* (get-header-data code)
- sb!vm:n-word-bytes))
- (pc-offset
- (- (sap-int (sb!vm:context-pc scp))
- (- (get-lisp-obj-address code)
- sb!vm:other-pointer-lowtag)
- code-header-len)))
- ;; Check to see whether we were executing in a branch
- ;; delay slot.
- #!+(or pmax sgi) ; pmax only (and broken anyway)
- (when (logbitp 31 (sb!alien:slot scp '%mips::sc-cause))
- (incf pc-offset sb!vm:n-word-bytes))
- (unless (<= 0 pc-offset
- (* (code-header-ref code sb!vm:code-code-size-slot)
- sb!vm:n-word-bytes))
- ;; We were in an assembly routine. Therefore, use the
- ;; LRA as the pc.
- (setf pc-offset
- (- (sb!vm:context-register scp sb!vm::lra-offset)
- (get-lisp-obj-address code)
- code-header-len)))
- (return
- (if (eq (%code-debug-info code) :bogus-lra)
- (let ((real-lra (code-header-ref code
- real-lra-slot)))
- (values (lra-code-header real-lra)
- (get-header-data real-lra)
- nil))
- (values code pc-offset scp)))))))))))
+ (let ((scp (nth-interrupt-context index)))
+ (when (= (sap-int frame-pointer)
+ (sb!vm:context-register scp sb!vm::cfp-offset))
+ (without-gcing
+ (let ((code (code-object-from-bits
+ (sb!vm:context-register scp sb!vm::code-offset))))
+ (when (symbolp code)
+ (return (values code 0 scp)))
+ (let* ((code-header-len (* (get-header-data code)
+ sb!vm:n-word-bytes))
+ (pc-offset
+ (- (sap-int (sb!vm:context-pc scp))
+ (- (get-lisp-obj-address code)
+ sb!vm:other-pointer-lowtag)
+ code-header-len)))
+ ;; Check to see whether we were executing in a branch
+ ;; delay slot.
+ #!+(or pmax sgi) ; pmax only (and broken anyway)
+ (when (logbitp 31 (sb!alien:slot scp '%mips::sc-cause))
+ (incf pc-offset sb!vm:n-word-bytes))
+ (let ((code-size (* (code-header-ref code
+ sb!vm:code-code-size-slot)
+ sb!vm:n-word-bytes)))
+ (unless (<= 0 pc-offset code-size)
+ ;; We were in an assembly routine.
+ (multiple-value-bind (new-pc-offset computed-return)
+ (find-pc-from-assembly-fun code scp)
+ (setf pc-offset new-pc-offset)
+ (unless (<= 0 pc-offset code-size)
+ (cerror
+ "Set PC-OFFSET to zero and continue backtrace."
+ 'bug
+ :format-control
+ "~@<PC-OFFSET (~D) not in code object. Frame details:~
+ ~2I~:@_PC: #X~X~:@_CODE: ~S~:@_CODE FUN: ~S~:@_LRA: ~
+ #X~X~:@_COMPUTED RETURN: #X~X.~:>"
+ :format-arguments
+ (list pc-offset
+ (sap-int (sb!vm:context-pc scp))
+ code
+ (%code-entry-points code)
+ (sb!vm:context-register scp sb!vm::lra-offset)
+ computed-return))
+ ;; We failed to pinpoint where PC is, but set
+ ;; pc-offset to 0 to keep the backtrace from
+ ;; exploding.
+ (setf pc-offset 0)))))
+ (return
+ (if (eq (%code-debug-info code) :bogus-lra)
+ (let ((real-lra (code-header-ref code
+ real-lra-slot)))
+ (values (lra-code-header real-lra)
+ (get-header-data real-lra)
+ nil))
+ (values code pc-offset scp))))))))))
+
+#!-x86
+(defun find-pc-from-assembly-fun (code scp)
+ "Finds the PC for the return from an assembly routine properly.
+For some architectures (such as PPC) this will not be the $LRA
+register."
+ (let ((return-machine-address (sb!vm::return-machine-address scp))
+ (code-header-len (* (get-header-data code) sb!vm:n-word-bytes)))
+ (values (- return-machine-address
+ (- (get-lisp-obj-address code)
+ sb!vm:other-pointer-lowtag)
+ code-header-len)
+ return-machine-address)))
;;; Find the code object corresponding to the object represented by
;;; bits and return it. We assume bogus functions correspond to the
(fun-debug-fun (%closure-fun fun)))
(#.sb!vm:funcallable-instance-header-widetag
(fun-debug-fun (funcallable-instance-fun fun)))
- ((#.sb!vm:simple-fun-header-widetag
- #.sb!vm:closure-fun-header-widetag)
+ (#.sb!vm:simple-fun-header-widetag
(let* ((name (%simple-fun-name fun))
(component (fun-code-header fun))
(res (find-if
(let* ((len (length vars))
(width (length (format nil "~W" (1- len)))))
(dotimes (i len)
- (setf (compiled-debug-var-symbol (svref vars i))
- (intern (format nil "ARG-~V,'0D" width i)
- ;; KLUDGE: It's somewhat nasty to have a bare
- ;; package name string here. It would be
- ;; nicer to have #.(FIND-PACKAGE "SB!DEBUG")
- ;; instead, since then at least it would transform
- ;; correctly under package renaming and stuff.
- ;; However, genesis can't handle dumped packages..
- ;; -- WHN 20000129
- ;;
- ;; FIXME: Maybe this could be fixed by moving the
- ;; whole debug-int.lisp file to warm init? (after
- ;; which dumping a #.(FIND-PACKAGE ..) expression
- ;; would work fine) If this is possible, it would
- ;; probably be a good thing, since minimizing the
- ;; amount of stuff in cold init is basically good.
- (or (find-package "SB-DEBUG")
- (find-package "SB!DEBUG")))))))
+ (without-package-locks
+ (setf (compiled-debug-var-symbol (svref vars i))
+ (intern (format nil "ARG-~V,'0D" width i)
+ ;; KLUDGE: It's somewhat nasty to have a bare
+ ;; package name string here. It would be
+ ;; nicer to have #.(FIND-PACKAGE "SB!DEBUG")
+ ;; instead, since then at least it would transform
+ ;; correctly under package renaming and stuff.
+ ;; However, genesis can't handle dumped packages..
+ ;; -- WHN 20000129
+ ;;
+ ;; FIXME: Maybe this could be fixed by moving the
+ ;; whole debug-int.lisp file to warm init? (after
+ ;; which dumping a #.(FIND-PACKAGE ..) expression
+ ;; would work fine) If this is possible, it would
+ ;; probably be a good thing, since minimizing the
+ ;; amount of stuff in cold init is basically good.
+ (or (find-package "SB-DEBUG")
+ (find-package "SB!DEBUG"))))))))
;;; Parse the packed representation of DEBUG-VARs from
;;; DEBUG-FUN's SB!C::COMPILED-DEBUG-FUN, returning a vector
(zerop (logand val 3))
;; character
(and (zerop (logand val #xffff0000)) ; Top bits zero
- (= (logand val #xff) sb!vm:base-char-widetag)) ; char tag
+ (= (logand val #xff) sb!vm:character-widetag)) ; char tag
;; unbound marker
(= val sb!vm:unbound-marker-widetag)
;; pointer
(sb!sys:without-gcing
(with-escaped-value (val) (sb!kernel:make-lisp-obj val))))
- (#.sb!vm:base-char-reg-sc-number
+ (#.sb!vm:character-reg-sc-number
(with-escaped-value (val)
(code-char val)))
(#.sb!vm:sap-reg-sc-number
sb!vm:n-word-bytes)))))
(#.sb!vm:control-stack-sc-number
(sb!kernel:stack-ref fp (sb!c:sc-offset-offset sc-offset)))
- (#.sb!vm:base-char-stack-sc-number
+ (#.sb!vm:character-stack-sc-number
(with-nfp (nfp)
(code-char (sb!sys:sap-ref-32 nfp (* (sb!c:sc-offset-offset sc-offset)
sb!vm:n-word-bytes)))))
(without-gcing
(with-escaped-value (val)
(make-valid-lisp-obj val))))
- (#.sb!vm:base-char-reg-sc-number
+ (#.sb!vm:character-reg-sc-number
(with-escaped-value (val)
(code-char val)))
(#.sb!vm:sap-reg-sc-number
sb!vm:n-word-bytes)))))
(#.sb!vm:control-stack-sc-number
(stack-ref fp (sb!c:sc-offset-offset sc-offset)))
- (#.sb!vm:base-char-stack-sc-number
+ (#.sb!vm:character-stack-sc-number
(code-char
(sap-ref-32 fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:n-word-bytes)))))
(without-gcing
(set-escaped-value
(get-lisp-obj-address value))))
- (#.sb!vm:base-char-reg-sc-number
+ (#.sb!vm:character-reg-sc-number
(set-escaped-value (char-code value)))
(#.sb!vm:sap-reg-sc-number
(set-escaped-value (sap-int value)))
(the long-float (realpart value)))))
(#.sb!vm:control-stack-sc-number
(setf (stack-ref fp (sb!c:sc-offset-offset sc-offset)) value))
- (#.sb!vm:base-char-stack-sc-number
+ (#.sb!vm:character-stack-sc-number
(with-nfp (nfp)
(setf (sap-ref-32 nfp (* (sb!c:sc-offset-offset sc-offset)
sb!vm:n-word-bytes))
(without-gcing
(set-escaped-value
(get-lisp-obj-address value))))
- (#.sb!vm:base-char-reg-sc-number
+ (#.sb!vm:character-reg-sc-number
(set-escaped-value (char-code value)))
(#.sb!vm:sap-reg-sc-number
(set-escaped-value (sap-int value)))
(imagpart (the (complex long-float) value))))
(#.sb!vm:control-stack-sc-number
(setf (stack-ref fp (sb!c:sc-offset-offset sc-offset)) value))
- (#.sb!vm:base-char-stack-sc-number
+ (#.sb!vm:character-stack-sc-number
(setf (sap-ref-32 fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:n-word-bytes)))
(char-code (the character value))))
(compiled-debug-fun-compiler-debug-fun what))
:standard)
(error ":FUN-END breakpoints are currently unsupported ~
- for the known return convention."))
+ for the known return convention."))
(let* ((bpt (%make-breakpoint hook-fun what kind info))
(starter (compiled-debug-fun-end-starter what)))
;;; instruction.
(defun make-bogus-lra (real-lra &optional known-return-p)
(without-gcing
+ ;; These are really code labels, not variables: but this way we get
+ ;; their addresses.
(let* ((src-start (foreign-symbol-address "fun_end_breakpoint_guts"))
(src-end (foreign-symbol-address "fun_end_breakpoint_end"))
(trap-loc (foreign-symbol-address "fun_end_breakpoint_trap"))
(length (sap- src-end src-start))
(code-object
- (%primitive
- #!-(and x86 gencgc) sb!c:allocate-code-object
- #!+(and x86 gencgc) sb!c::allocate-dynamic-code-object
- (1+ bogus-lra-constants)
- length))
+ (%primitive 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)
;; (There used to be more cases back before sbcl-0.7.0, when
;; we did special tricks to debug the IR1 interpreter.)
))
-
-(defun print-code-locations (function)
- (let ((debug-fun (fun-debug-fun function)))
- (do-debug-fun-blocks (block debug-fun)
- (do-debug-block-locations (loc block)
- (fill-in-code-location loc)
- (format t "~S code location at ~W"
- (compiled-code-location-kind loc)
- (compiled-code-location-pc loc))
- (sb!debug::print-code-location-source-form loc 0)
- (terpri)))))
projects / sbcl.git / blobdiff