* word 3: last insn address + 4 bytes
* word 4: fixup code address
*
+ * Deleted entries are encoded as:
+ * word 1: unused
+ * word 2: -1
+ *
* See asm/uaccess.h for more details.
*/
continue;
}
+ /* A deleted entry; see trim_init_extable */
+ if (walk->fixup == -1)
+ continue;
+
if (walk->insn == value)
return walk;
}
return NULL;
}
+#ifdef CONFIG_MODULES
+/* We could memmove them around; easier to mark the trimmed ones. */
+void trim_init_extable(struct module *m)
+{
+ unsigned int i;
+ bool range;
+
+ for (i = 0; i < m->num_exentries; i += range ? 2 : 1) {
+ range = m->extable[i].fixup == 0;
+
+ if (within_module_init(m->extable[i].insn, m)) {
+ m->extable[i].fixup = -1;
+ if (range)
+ m->extable[i+1].fixup = -1;
+ }
+ if (range)
+ i++;
+ }
+}
+#endif /* CONFIG_MODULES */
+
/* Special extable search, which handles ranges. Returns fixup */
unsigned long search_extables_range(unsigned long addr, unsigned long *g2)
{