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Elf64_sym

Elf64_sym->value

Access the |ACL2|::|VALUE| field of a elf64_sym bit structure.

Signature
(elf64_sym->value x) → value
Arguments: x — Guard (elf64_sym-p x).
Returns: value — Type (elf_bits64-p value).

Definitions and Theorems

Function: elf64_sym->value

(defun elf64_sym->value (x)
  (declare (xargs :guard (elf64_sym-p x)))
  (mbe :logic
       (let ((x (elf64_sym-fix x)))
         (part-select x :low 64 :width 64))
       :exec (the (unsigned-byte 64)
                  (logand (the (unsigned-byte 64)
                               18446744073709551615)
                          (the (unsigned-byte 128)
                               (ash (the (unsigned-byte 192) x)
                                    -64))))))

Theorem: elf_bits64-p-of-elf64_sym->value

(defthm elf_bits64-p-of-elf64_sym->value
  (b* ((value (elf64_sym->value x)))
    (elf_bits64-p value))
  :rule-classes :rewrite)

Theorem: elf64_sym->value-of-elf64_sym-fix-x

(defthm elf64_sym->value-of-elf64_sym-fix-x
  (equal (elf64_sym->value (elf64_sym-fix x))
         (elf64_sym->value x)))

Theorem: elf64_sym->value-elf64_sym-equiv-congruence-on-x

(defthm elf64_sym->value-elf64_sym-equiv-congruence-on-x
  (implies (elf64_sym-equiv x x-equiv)
           (equal (elf64_sym->value x)
                  (elf64_sym->value x-equiv)))
  :rule-classes :congruence)

Theorem: elf64_sym->value-of-elf64_sym

(defthm elf64_sym->value-of-elf64_sym
 (equal
     (elf64_sym->value (elf64_sym name info other shndx value size))
     (elf_bits64-fix value)))

Theorem: elf64_sym->value-of-write-with-mask

(defthm elf64_sym->value-of-write-with-mask
  (implies
       (and (fty::bitstruct-read-over-write-hyps
                 x elf64_sym-equiv-under-mask)
            (elf64_sym-equiv-under-mask x y fty::mask)
            (equal (logand (lognot fty::mask)
                           340282366920938463444927863358058659840)
                   0))
       (equal (elf64_sym->value x)
              (elf64_sym->value y))))