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Elf32_sym

Elf32_sym->value

Access the |ACL2|::|VALUE| field of a elf32_sym bit structure.

Signature
(elf32_sym->value x) → value
Arguments: x — Guard (elf32_sym-p x).
Returns: value — Type (elf_bits32-p value).

Definitions and Theorems

Function: elf32_sym->value

(defun elf32_sym->value (x)
  (declare (xargs :guard (elf32_sym-p x)))
  (mbe :logic
       (let ((x (elf32_sym-fix x)))
         (part-select x :low 32 :width 32))
       :exec (the (unsigned-byte 32)
                  (logand (the (unsigned-byte 32) 4294967295)
                          (the (unsigned-byte 96)
                               (ash (the (unsigned-byte 128) x)
                                    -32))))))

Theorem: elf_bits32-p-of-elf32_sym->value

(defthm elf_bits32-p-of-elf32_sym->value
  (b* ((value (elf32_sym->value x)))
    (elf_bits32-p value))
  :rule-classes :rewrite)

Theorem: elf32_sym->value-of-elf32_sym-fix-x

(defthm elf32_sym->value-of-elf32_sym-fix-x
  (equal (elf32_sym->value (elf32_sym-fix x))
         (elf32_sym->value x)))

Theorem: elf32_sym->value-elf32_sym-equiv-congruence-on-x

(defthm elf32_sym->value-elf32_sym-equiv-congruence-on-x
  (implies (elf32_sym-equiv x x-equiv)
           (equal (elf32_sym->value x)
                  (elf32_sym->value x-equiv)))
  :rule-classes :congruence)

Theorem: elf32_sym->value-of-elf32_sym

(defthm elf32_sym->value-of-elf32_sym
 (equal
     (elf32_sym->value (elf32_sym name value size info other shndx))
     (elf_bits32-fix value)))

Theorem: elf32_sym->value-of-write-with-mask

(defthm elf32_sym->value-of-write-with-mask
  (implies (and (fty::bitstruct-read-over-write-hyps
                     x elf32_sym-equiv-under-mask)
                (elf32_sym-equiv-under-mask x y fty::mask)
                (equal (logand (lognot fty::mask)
                               18446744069414584320)
                       0))
           (equal (elf32_sym->value x)
                  (elf32_sym->value y))))