;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
-(in-package "SB!UNIX")
+(in-package "SB!WIN32")
;;;
;;; An awful lot of this stuff is stubbed out for now. We basically
;;;
;;; This specific bit of functionality may well be implemented entirely
;;; in the runtime.
-#|
+#||
(defun sigint-%break (format-string &rest format-arguments)
(flet ((break-it ()
(apply #'%break 'sigint format-string format-arguments)))
(sb!thread:interrupt-thread (sb!thread::foreground-thread) #'break-it)))
-|#
+||#
\f
-;;; Actual exception handler. We hit something the runtime doesn't
-;;; want to or know how to deal with (that is, not a sigtrap or gc
-;;; wp violation), so it calls us here.
+;;; Map Windows Exception code to condition names: symbols or strings
+(defvar *exception-code-map*
+ (macrolet ((cons-name (symbol)
+ `(cons ,symbol ,(remove #\+ (substitute #\_ #\- (string symbol))))))
+ (list
+ ;; Floating point exceptions
+ (cons +exception-flt-divide-by-zero+ 'division-by-zero)
+ (cons +exception-flt-invalid-operation+ 'floating-point-invalid-operation)
+ (cons +exception-flt-underflow+ 'floating-point-underflow)
+ (cons +exception-flt-overflow+ 'floating-point-overflow)
+ (cons +exception-flt-inexact-result+ 'floating-point-inexact)
+ (cons +exception-flt-denormal-operand+ 'floating-point-exception)
+ (cons +exception-flt-stack-check+ 'floating-point-exception)
+ ;; Stack overflow
+ (cons +exception-stack-overflow+ 'sb!kernel::control-stack-exhausted)
+ ;; Various
+ (cons-name +exception-single-step+)
+ (cons-name +exception-access-violation+) ; FIXME: should turn into MEMORY-FAULT-ERROR
+ ; plus the faulting address
+ (cons-name +exception-array-bounds-exceeded+)
+ (cons-name +exception-breakpoint+)
+ (cons-name +exception-datatype-misalignment+)
+ (cons-name +exception-illegal-instruction+)
+ (cons-name +exception-in-page-error+)
+ (cons-name +exception-int-divide-by-zero+)
+ (cons-name +exception-int-overflow+)
+ (cons-name +exception-invalid-disposition+)
+ (cons-name +exception-noncontinuable-exception+)
+ (cons-name +exception-priv-instruction+))))
+
+(define-alien-type ()
+ (struct exception-record
+ (exception-code dword)
+ (exception-flags dword)
+ (exception-record system-area-pointer)
+ (exception-address system-area-pointer)
+ (number-parameters dword)
+ (exception-information system-area-pointer)))
-(defun sb!kernel:handle-win32-exception (context exception-record)
- (error "An exception occured! Context ~A, exception-record ~A."
- context exception-record))
+;;; Actual exception handler. We hit something the runtime doesn't
+;;; want to or know how to deal with (that is, not a sigtrap or gc wp
+;;; violation), so it calls us here.
+(defun sb!kernel:handle-win32-exception (context-sap exception-record-sap)
+ (let* ((record (deref (sap-alien exception-record-sap (* (struct exception-record)))))
+ (code (slot record 'exception-code))
+ (condition-name (cdr (assoc code *exception-code-map*)))
+ (sb!debug:*stack-top-hint* (nth-value 1 (sb!kernel:find-interrupted-name-and-frame))))
+ (if condition-name
+ (error condition-name)
+ (error "An exception occurred in context ~S: ~S. (Exception code: ~S)"
+ context-sap exception-record-sap code))))
\f
;;;; etc.