aboutsummaryrefslogtreecommitdiff
path: root/arch/alpha/mm/extable.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/alpha/mm/extable.c')
-rw-r--r--arch/alpha/mm/extable.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/alpha/mm/extable.c b/arch/alpha/mm/extable.c
new file mode 100644
index 000000000000..c3849baebd57
--- /dev/null
+++ b/arch/alpha/mm/extable.c
@@ -0,0 +1,34 @@
+/*
+ * linux/arch/alpha/mm/extable.c
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+void sort_extable(struct exception_table_entry *start,
+ struct exception_table_entry *finish)
+{
+}
+
+const struct exception_table_entry *
+search_extable(const struct exception_table_entry *first,
+ const struct exception_table_entry *last,
+ unsigned long value)
+{
+ while (first <= last) {
+ const struct exception_table_entry *mid;
+ unsigned long mid_value;
+
+ mid = (last - first) / 2 + first;
+ mid_value = (unsigned long)&mid->insn + mid->insn;
+ if (mid_value == value)
+ return mid;
+ else if (mid_value < value)
+ first = mid+1;
+ else
+ last = mid-1;
+ }
+
+ return NULL;
+}