1#include <asm/interrupt.h>
2#include <asm/kprobes.h>
3
4struct soft_mask_table_entry {
5	unsigned long start;
6	unsigned long end;
7};
8
9struct restart_table_entry {
10	unsigned long start;
11	unsigned long end;
12	unsigned long fixup;
13};
14
15extern struct soft_mask_table_entry __start___soft_mask_table[];
16extern struct soft_mask_table_entry __stop___soft_mask_table[];
17
18extern struct restart_table_entry __start___restart_table[];
19extern struct restart_table_entry __stop___restart_table[];
20
21/* Given an address, look for it in the soft mask table */
22bool search_kernel_soft_mask_table(unsigned long addr)
23{
24	struct soft_mask_table_entry *smte = __start___soft_mask_table;
25
26	while (smte < __stop___soft_mask_table) {
27		unsigned long start = smte->start;
28		unsigned long end = smte->end;
29
30		if (addr >= start && addr < end)
31			return true;
32
33		smte++;
34	}
35	return false;
36}
37NOKPROBE_SYMBOL(search_kernel_soft_mask_table);
38
39/* Given an address, look for it in the kernel exception table */
40unsigned long search_kernel_restart_table(unsigned long addr)
41{
42	struct restart_table_entry *rte = __start___restart_table;
43
44	while (rte < __stop___restart_table) {
45		unsigned long start = rte->start;
46		unsigned long end = rte->end;
47		unsigned long fixup = rte->fixup;
48
49		if (addr >= start && addr < end)
50			return fixup;
51
52		rte++;
53	}
54	return 0;
55}
56NOKPROBE_SYMBOL(search_kernel_restart_table);
57