kernel/linux/arch/alpha/mm/extable.c

   1 /*
   2  * linux/arch/alpha/mm/extable.c
   3  */
   4
   5 #include <linux/config.h>
   6 #include <linux/module.h>
   7 #include <asm/uaccess.h>
   8
   9 void sort_extable(struct exception_table_entry *start,
  10                   struct exception_table_entry *finish)
  11 {
  12 }
  13
  14 const struct exception_table_entry *
  15 search_extable(const struct exception_table_entry *first,
  16                const struct exception_table_entry *last,
  17                unsigned long value)
  18 {
  19         while (first <= last) {
  20                 const struct exception_table_entry *mid;
  21                 unsigned long mid_value;
  22
  23                 mid = (last - first) / 2 + first;
  24                 mid_value = (unsigned long)&mid->insn + mid->insn;
  25                 if (mid_value == value)
  26                         return mid;
  27                 else if (mid_value < value)
  28                         first = mid+1;
  29                 else
  30                         last = mid-1;
  31         }
  32
  33         return NULL;
  34 }