Use this function to convert stab register @var{stab_regnr} into @value{GDBN}
regnum. If not defined, no conversion will be done.
-@item SYMBOL_RELOADING_DEFAULT
-@findex SYMBOL_RELOADING_DEFAULT
-The default value of the ``symbol-reloading'' variable. (Never defined in
-current sources.)
-
@item TARGET_CHAR_BIT
@findex TARGET_CHAR_BIT
Number of bits in a char; defaults to 8.