summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/unwind.h
blob: 311ad3d6658ae38032b45c8f170fc393105c342f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/*
 * arch/arm/include/asm/unwind.h
 *
 * Copyright (C) 2008 ARM Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#ifndef __ASM_UNWIND_H
#define __ASM_UNWIND_H

#ifndef __ASSEMBLY__

/* Unwind reason code according the the ARM EABI documents */
enum unwind_reason_code {
	URC_OK = 0,			/* operation completed successfully */
	URC_CONTINUE_UNWIND = 8,
	URC_FAILURE = 9			/* unspecified failure of some kind */
};

struct unwind_idx {
	unsigned long addr;
	unsigned long insn;
};

struct unwind_table {
	struct list_head list;
	struct unwind_idx *start;
	struct unwind_idx *stop;
	unsigned long begin_addr;
	unsigned long end_addr;
};

extern struct unwind_table *unwind_table_add(unsigned long start,
					     unsigned long size,
					     unsigned long text_addr,
					     unsigned long text_size);
extern void unwind_table_del(struct unwind_table *tab);
extern void unwind_backtrace(struct pt_regs *regs);

#endif	/* !__ASSEMBLY__ */

#endif	/* __ASM_UNWIND_H */