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• Mach-o-reader

Fill-data-common-section-bytes

Signature

(fill-data-common-section-bytes h-size 
                                lc-size remaining-file mach-o state) 
 
  → 
(mv err new-mach-o new-state)

Arguments

remaining-file — Guard (byte-listp remaining-file).

Returns

new-mach-o — Type (good-mach-o-p new-mach-o), given (good-mach-o-p mach-o).

new-state — Type (state-p new-state), given (state-p state).

Definitions and Theorems

Function: fill-data-common-section-bytes

(defun fill-data-common-section-bytes
       (h-size lc-size remaining-file mach-o state)
 (declare (xargs :stobjs (mach-o state)))
 (declare (type (unsigned-byte 64) h-size)
          (type (unsigned-byte 64) lc-size))
 (declare (xargs :guard (byte-listp remaining-file)))
 (let ((__function__ 'fill-data-common-section-bytes))
  (declare (ignorable __function__))
  (b*
   ((size (@data-common-section-size mach-o))
    (offset (@data-common-section-offset mach-o))
    (section (if (equal size 0)
                 nil
               (if (not (natp (- offset (+ h-size lc-size))))
                   t
                 (take size
                       (nthcdr (- offset (+ h-size lc-size))
                               remaining-file)))))
    ((when (not (byte-listp section)))
     (cw
      "EOF encountered unexpectedly. DATA::common section could not be read.~%")
     (mv t mach-o state))
    (mach-o (!data-common-section-bytes section mach-o)))
   (mv nil mach-o state))))

Theorem: good-mach-o-p-of-fill-data-common-section-bytes.new-mach-o

(defthm good-mach-o-p-of-fill-data-common-section-bytes.new-mach-o
  (implies (good-mach-o-p mach-o)
           (b* (((mv ?err ?new-mach-o ?new-state)
                 (fill-data-common-section-bytes
                      h-size
                      lc-size remaining-file mach-o state)))
             (good-mach-o-p new-mach-o)))
  :rule-classes :rewrite)

Theorem: state-p-of-fill-data-common-section-bytes.new-state

(defthm state-p-of-fill-data-common-section-bytes.new-state
  (implies (state-p state)
           (b* (((mv ?err ?new-mach-o ?new-state)
                 (fill-data-common-section-bytes
                      h-size
                      lc-size remaining-file mach-o state)))
             (state-p new-state)))
  :rule-classes :rewrite)