(in-package "SB!DI")
-(file-comment
- "$Header$")
-
;;; FIXME: There are an awful lot of package prefixes in this code.
;;; Couldn't we have SB-DI use the SB-C and SB-VM packages?
\f
()
#!+sb-doc
(:documentation
- "All debug-conditions inherit from this type. These are serious conditions
+ "All DEBUG-CONDITIONs inherit from this type. These are serious conditions
that must be handled, but they are not programmer errors."))
(define-condition no-debug-info (debug-condition)
- ()
+ ((code-component :reader no-debug-info-code-component
+ :initarg :code-component))
#!+sb-doc
- (:documentation "There is absolutely no debugging information available.")
+ (:documentation "There is no usable debugging information available.")
(:report (lambda (condition stream)
(declare (ignore condition))
(fresh-line stream)
- (write-line "No debugging information available." stream))))
+ (format stream
+ "no debug information available for ~S~%"
+ (no-debug-info-code-component condition)))))
(define-condition no-debug-function-returns (debug-condition)
((debug-function :reader no-debug-function-returns-debug-function
:initarg :debug-function))
#!+sb-doc
(:documentation
- "The system could not return values from a frame with debug-function since
+ "The system could not return values from a frame with DEBUG-FUNCTION since
it lacked information about returning values.")
(:report (lambda (condition stream)
(let ((fun (debug-function-function
"All programmer errors from using the interface for building debugging
tools inherit from this type."))
-(define-condition unhandled-condition (debug-error)
- ((condition :reader unhandled-condition-condition :initarg :condition))
+(define-condition unhandled-debug-condition (debug-error)
+ ((condition :reader unhandled-debug-condition-condition :initarg :condition))
(:report (lambda (condition stream)
(format stream "~&unhandled DEBUG-CONDITION:~%~A"
- (unhandled-condition-condition condition)))))
+ (unhandled-debug-condition-condition condition)))))
(define-condition unknown-code-location (debug-error)
((code-location :reader unknown-code-location-code-location
(frame :reader frame-function-mismatch-frame :initarg :frame)
(form :reader frame-function-mismatch-form :initarg :form))
(:report (lambda (condition stream)
- (format stream
- "~&Form was preprocessed for ~S,~% but called on ~S:~% ~S"
- (frame-function-mismatch-code-location condition)
- (frame-function-mismatch-frame condition)
- (frame-function-mismatch-form condition)))))
-
-;;; This signals debug-conditions. If they go unhandled, then signal an
-;;; unhandled-condition error.
+ (format
+ stream
+ "~&Form was preprocessed for ~S,~% but called on ~S:~% ~S"
+ (frame-function-mismatch-code-location condition)
+ (frame-function-mismatch-frame condition)
+ (frame-function-mismatch-form condition)))))
+
+;;; This signals debug-conditions. If they go unhandled, then signal
+;;; an UNHANDLED-DEBUG-CONDITION error.
;;;
;;; ??? Get SIGNAL in the right package!
(defmacro debug-signal (datum &rest arguments)
`(let ((condition (make-condition ,datum ,@arguments)))
(signal condition)
- (error 'unhandled-condition :condition condition)))
+ (error 'unhandled-debug-condition :condition condition)))
\f
;;;; structures
;;;;
#!-sb-fluid (declaim (inline cstack-pointer-valid-p))
(defun cstack-pointer-valid-p (x)
(declare (type system-area-pointer x))
- #!-x86
+ #!-x86 ; stack grows toward high address values
(and (sap< x (current-sp))
- (sap<= #!-gengc (sb!alien:alien-sap
- (sb!alien:extern-alien "control_stack" (* t)))
+ (sap<= #!-gengc (int-sap control-stack-start)
#!+gengc (mutator-control-stack-base)
x)
(zerop (logand (sap-int x) #b11)))
- #!+x86 ;; stack grows to low address values
+ #!+x86 ; stack grows toward low address values
(and (sap>= x (current-sp))
- (sap> (sb!alien:alien-sap (sb!alien:extern-alien "control_stack_end"
- (* t)))
- x)
+ (sap> (int-sap control-stack-end) x)
(zerop (logand (sap-int x) #b11))))
#!+(or gengc x86)
;; Not the first page which is unmapped.
(>= (sap-int ra) 4096)
;; Not a Lisp stack pointer.
- (or (sap< ra (current-sp))
- (sap>= ra (sb!alien:alien-sap
- (sb!alien:extern-alien "control_stack_end" (* t)))))))
+ (not (cstack-pointer-valid-p ra))))
;;; Try to find a valid previous stack. This is complex on the x86 as
;;; it can jump between C and Lisp frames. To help find a valid frame
(let ((info (%code-debug-info component)))
(cond
((not info)
- (debug-signal 'no-debug-info))
+ (debug-signal 'no-debug-info :code-component component))
((eq info :bogus-lra)
(make-bogus-debug-function "function end breakpoint"))
(t
(let* ((locations
(dotimes (k (sb!c::read-var-integer blocks i)
(result locations-buffer))
- (let ((kind (svref sb!c::compiled-code-location-kinds
+ (let ((kind (svref sb!c::*compiled-code-location-kinds*
(aref+ blocks i)))
(pc (+ last-pc
(sb!c::read-var-integer blocks i)))
(if (logtest flags sb!c::minimal-debug-function-setf-bit)
`(setf ,base)
base))
- :kind (svref sb!c::minimal-debug-function-kinds
+ :kind (svref sb!c::*minimal-debug-function-kinds*
(ldb sb!c::minimal-debug-function-kind-byte options))
:variables
(when vars-p
(or (compiled-debug-var-save-sc-offset debug-var)
(compiled-debug-var-sc-offset debug-var))))))
+;;; a helper function for working with possibly-invalid values:
+;;; Do (MAKE-LISP-OBJ VAL) only if the value looks valid.
+;;;
+;;; (Such values can arise in registers on machines with conservative
+;;; GC, and might also arise in debug variable locations when
+;;; those variables are invalid.)
+(defun make-valid-lisp-obj (val)
+ (/show0 "entering MAKE-VALID-LISP-OBJ, VAL=..")
+ #!+sb-show (%primitive print (sb!impl::hexstr val))
+ (if (or
+ ;; fixnum
+ (zerop (logand val 3))
+ ;; character
+ (and (zerop (logand val #xffff0000)) ; Top bits zero
+ (= (logand val #xff) sb!vm:base-char-type)) ; Char tag
+ ;; unbound marker
+ (= val sb!vm:unbound-marker-type)
+ ;; pointer
+ (and (logand val 1)
+ ;; Check that the pointer is valid. XXX Could do a better
+ ;; job. FIXME: e.g. by calling out to an is_valid_pointer
+ ;; routine in the C runtime support code
+ (or (< sb!vm:read-only-space-start val
+ (* sb!vm:*read-only-space-free-pointer*
+ sb!vm:word-bytes))
+ (< sb!vm:static-space-start val
+ (* sb!vm:*static-space-free-pointer*
+ sb!vm:word-bytes))
+ (< sb!vm:dynamic-space-start val
+ (sap-int (dynamic-space-free-pointer))))))
+ (make-lisp-obj val)
+ :invalid-object))
+
;;; CMU CL had
;;; (DEFUN SUB-ACCESS-DEBUG-VAR-SLOT (FP SC-OFFSET &OPTIONAL ESCAPED) ..)
;;; code for this case.
#!+x86
(defun sub-access-debug-var-slot (fp sc-offset &optional escaped)
(declare (type system-area-pointer fp))
+ (/show0 "entering SUB-ACCESS-DEBUG-VAR-SLOT, FP,SC-OFFSET,ESCAPED=..")
+ #!+sb-show (%primitive print (sb!impl::hexstr fp))
+ #!+sb-show (%primitive print (sb!impl::hexstr sc-offset))
+ #!+sb-show (%primitive print (sb!impl::hexstr escaped))
(macrolet ((with-escaped-value ((var) &body forms)
`(if escaped
- (let ((,var (sb!vm:context-register
- escaped (sb!c:sc-offset-offset sc-offset))))
- ,@forms)
- :invalid-value-for-unescaped-register-storage))
+ (let ((,var (sb!vm:context-register
+ escaped
+ (sb!c:sc-offset-offset sc-offset))))
+ (/show0 "in escaped case, ,VAR value=..")
+ #!+sb-show (%primitive print (sb!impl::hexstr ,var))
+ ,@forms)
+ :invalid-value-for-unescaped-register-storage))
(escaped-float-value (format)
`(if escaped
- (sb!vm:context-float-register
- escaped (sb!c:sc-offset-offset sc-offset) ',format)
- :invalid-value-for-unescaped-register-storage))
+ (sb!vm:context-float-register
+ escaped (sb!c:sc-offset-offset sc-offset) ',format)
+ :invalid-value-for-unescaped-register-storage))
(escaped-complex-float-value (format)
`(if escaped
- (complex
- (sb!vm:context-float-register
- escaped (sb!c:sc-offset-offset sc-offset) ',format)
- (sb!vm:context-float-register
- escaped (1+ (sb!c:sc-offset-offset sc-offset)) ',format))
- :invalid-value-for-unescaped-register-storage))
- ;; The debug variable locations are not always valid, and
- ;; on the x86 locations can contain raw values. To
- ;; prevent later problems from invalid objects, they are
- ;; filtered here.
- (make-valid-lisp-obj (val)
- `(if (or
- ;; fixnum
- (zerop (logand ,val 3))
- ;; character
- (and (zerop (logand ,val #xffff0000)) ; Top bits zero
- (= (logand ,val #xff) sb!vm:base-char-type)) ; Char tag
- ;; unbound marker
- (= ,val sb!vm:unbound-marker-type)
- ;; pointer
- (and (logand ,val 1)
- ;; Check that the pointer is valid. XXX Could do a
- ;; better job.
- (or (< (sb!impl::read-only-space-start) ,val
- (* sb!impl::*read-only-space-free-pointer*
- sb!vm:word-bytes))
- (< (sb!impl::static-space-start) ,val
- (* sb!impl::*static-space-free-pointer*
- sb!vm:word-bytes))
- (< (sb!impl::current-dynamic-space-start) ,val
- (sap-int (dynamic-space-free-pointer))))))
- (make-lisp-obj ,val)
- :invalid-object)))
+ (complex
+ (sb!vm:context-float-register
+ escaped (sb!c:sc-offset-offset sc-offset) ',format)
+ (sb!vm:context-float-register
+ escaped (1+ (sb!c:sc-offset-offset sc-offset)) ',format))
+ :invalid-value-for-unescaped-register-storage)))
(ecase (sb!c:sc-offset-scn sc-offset)
((#.sb!vm:any-reg-sc-number #.sb!vm:descriptor-reg-sc-number)
+ (/show0 "case of ANY-REG-SC-NUMBER or DESCRIPTOR-REG-SC-NUMBER")
(without-gcing
(with-escaped-value (val)
+ (/show0 "VAL=..")
+ #!+sb-show (%primitive print (sb!impl::hexstr val))
(make-valid-lisp-obj val))))
(#.sb!vm:base-char-reg-sc-number
+ (/show0 "case of BASE-CHAR-REG-SC-NUMBER")
(with-escaped-value (val)
(code-char val)))
(#.sb!vm:sap-reg-sc-number
+ (/show0 "case of SAP-REG-SC-NUMBER")
(with-escaped-value (val)
(int-sap val)))
(#.sb!vm:signed-reg-sc-number
+ (/show0 "case of SIGNED-REG-SC-NUMBER")
(with-escaped-value (val)
(if (logbitp (1- sb!vm:word-bits) val)
(logior val (ash -1 sb!vm:word-bits))
val)))
(#.sb!vm:unsigned-reg-sc-number
+ (/show0 "case of UNSIGNED-REG-SC-NUMBER")
(with-escaped-value (val)
val))
(#.sb!vm:single-reg-sc-number
+ (/show0 "case of SINGLE-REG-SC-NUMBER")
(escaped-float-value single-float))
(#.sb!vm:double-reg-sc-number
+ (/show0 "case of DOUBLE-REG-SC-NUMBER")
(escaped-float-value double-float))
#!+long-float
(#.sb!vm:long-reg-sc-number
+ (/show0 "case of LONG-REG-SC-NUMBER")
(escaped-float-value long-float))
(#.sb!vm:complex-single-reg-sc-number
+ (/show0 "case of COMPLEX-SINGLE-REG-SC-NUMBER")
(escaped-complex-float-value single-float))
(#.sb!vm:complex-double-reg-sc-number
+ (/show0 "case of COMPLEX-DOUBLE-REG-SC-NUMBER")
(escaped-complex-float-value double-float))
#!+long-float
(#.sb!vm:complex-long-reg-sc-number
+ (/show0 "case of COMPLEX-LONG-REG-SC-NUMBER")
(escaped-complex-float-value long-float))
(#.sb!vm:single-stack-sc-number
+ (/show0 "case of SINGLE-STACK-SC-NUMBER")
(sap-ref-single fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes))))
(#.sb!vm:double-stack-sc-number
+ (/show0 "case of DOUBLE-STACK-SC-NUMBER")
(sap-ref-double fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 2)
sb!vm:word-bytes))))
#!+long-float
(#.sb!vm:long-stack-sc-number
+ (/show0 "case of LONG-STACK-SC-NUMBER")
(sap-ref-long fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 3)
sb!vm:word-bytes))))
(#.sb!vm:complex-single-stack-sc-number
+ (/show0 "case of COMPLEX-STACK-SC-NUMBER")
(complex
(sap-ref-single fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes)))
(sap-ref-single fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 2)
sb!vm:word-bytes)))))
(#.sb!vm:complex-double-stack-sc-number
+ (/show0 "case of COMPLEX-DOUBLE-STACK-SC-NUMBER")
(complex
(sap-ref-double fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 2)
sb!vm:word-bytes)))
sb!vm:word-bytes)))))
#!+long-float
(#.sb!vm:complex-long-stack-sc-number
+ (/show0 "case of COMPLEX-LONG-STACK-SC-NUMBER")
(complex
(sap-ref-long fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 3)
sb!vm:word-bytes)))
(sap-ref-long fp (- (* (+ (sb!c:sc-offset-offset sc-offset) 6)
sb!vm:word-bytes)))))
(#.sb!vm:control-stack-sc-number
+ (/show0 "case of CONTROL-STACK-SC-NUMBER")
(stack-ref fp (sb!c:sc-offset-offset sc-offset)))
(#.sb!vm:base-char-stack-sc-number
+ (/show0 "case of BASE-CHAR-STACK-SC-NUMBER")
(code-char
(sap-ref-32 fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes)))))
(#.sb!vm:unsigned-stack-sc-number
+ (/show0 "case of UNSIGNED-STACK-SC-NUMBER")
(sap-ref-32 fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes))))
(#.sb!vm:signed-stack-sc-number
+ (/show0 "case of SIGNED-STACK-SC-NUMBER")
(signed-sap-ref-32 fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes))))
(#.sb!vm:sap-stack-sc-number
+ (/show0 "case of SAP-STACK-SC-NUMBER")
(sap-ref-sap fp (- (* (1+ (sb!c:sc-offset-offset sc-offset))
sb!vm:word-bytes)))))))
;;; debugging-tool break instruction. This does NOT handle all breaks;
;;; for example, it does not handle breaks for internal errors.
(defun handle-breakpoint (offset component signal-context)
+ (/show0 "entering HANDLE-BREAKPOINT")
(let ((data (breakpoint-data component offset nil)))
(unless data
(error "unknown breakpoint in ~S at offset ~S"
;;; This handles code-location and debug-function :FUNCTION-START
;;; breakpoints.
(defun handle-breakpoint-aux (breakpoints data offset component signal-context)
+ (/show0 "entering HANDLE-BREAKPOINT-AUX")
(unless breakpoints
(error "internal error: breakpoint that nobody wants"))
(unless (member data *executing-breakpoint-hooks*)
bpt)))))
(defun handle-function-end-breakpoint (offset component context)
+ (/show0 "entering HANDLE-FUNCTION-END-BREAKPOINT")
(let ((data (breakpoint-data component offset nil)))
(unless data
(error "unknown breakpoint in ~S at offset ~S"
;;; [old C code] or HANDLE-FUNCTION-END-BREAKPOINT calls this directly
;;; [new C code].
(defun handle-function-end-breakpoint-aux (breakpoints data signal-context)
+ (/show0 "entering HANDLE-FUNCTION-END-BREAKPOINT-AUX")
(delete-breakpoint-data data)
(let* ((scp
(locally
#!+x86 sb!vm::ebx-offset)))
(nargs (make-lisp-obj
(sb!vm:context-register scp sb!vm::nargs-offset)))
- (reg-arg-offsets '#.sb!vm::register-arg-offsets)
+ (reg-arg-offsets '#.sb!vm::*register-arg-offsets*)
(results nil))
(without-gcing
(dotimes (arg-num nargs)
results)))
(nreverse results)))
-;;;; MAKE-BOGUS-LRA (used for :function-end breakpoints)
+;;;; MAKE-BOGUS-LRA (used for :FUNCTION-END breakpoints)
(defconstant
bogus-lra-constants
projects / sbcl.git / blobdiff