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fix backtraces, broken since the program-bindings format change

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* module/system/vm/frame.scm (frame-bindings): Fix for new binding
  format; actually use the bindings accessors.
  (frame-lookup-binding): Clarify.
This commit is contained in:
Andy Wingo 2008-10-16 13:56:41 +02:00
parent f580ec0f56
commit cc588f740f
1 changed files with 4 additions and 7 deletions
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11
module/system/vm/frame.scm
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@ -172,15 +172,12 @@
;; FIXME handle #f program-bindings return
(define (frame-bindings frame addr)
(do ((bs (program-bindings (frame-program frame)) (cdr bs))
(ls '() (if (cdar bs) (cons (cdar bs) ls) (cdr ls))))
((or (null? bs) (> (caar bs) addr))
(apply append ls))))
(filter (lambda (b) (and (>= addr (binding:start b))
(<= addr (binding:end b))))
(program-bindings (frame-program frame))))
(define (frame-lookup-binding frame addr sym)
(do ((bs (frame-bindings frame addr) (cdr bs)))
((or (null? bs) (eq? sym (binding:name (car bs))))
(and (pair? bs) (car bs)))))
(assq sym (reverse (frame-bindings frame addr))))
(define (frame-object-binding frame addr obj)
(do ((bs (frame-bindings frame addr) (cdr bs)))