1/*
 2 * arch/arm/include/asm/unwind.h
 3 *
 4 * Copyright (C) 2008 ARM Limited
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#ifndef __ASM_UNWIND_H
21#define __ASM_UNWIND_H
22
23#ifndef __ASSEMBLY__
24
25/* Unwind reason code according the the ARM EABI documents */
26enum unwind_reason_code {
27	URC_OK = 0,			/* operation completed successfully */
28	URC_CONTINUE_UNWIND = 8,
29	URC_FAILURE = 9			/* unspecified failure of some kind */
30};
31
32struct unwind_idx {
33	unsigned long addr_offset;
34	unsigned long insn;
35};
36
37struct unwind_table {
38	struct list_head list;
39	const struct unwind_idx *start;
40	const struct unwind_idx *origin;
41	const struct unwind_idx *stop;
42	unsigned long begin_addr;
43	unsigned long end_addr;
44};
45
46extern struct unwind_table *unwind_table_add(unsigned long start,
47					     unsigned long size,
48					     unsigned long text_addr,
49					     unsigned long text_size);
50extern void unwind_table_del(struct unwind_table *tab);
51extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
52
53#endif	/* !__ASSEMBLY__ */
54
55#ifdef CONFIG_ARM_UNWIND
56#define UNWIND(code...)		code
57#else
58#define UNWIND(code...)
59#endif
60
61#endif	/* __ASM_UNWIND_H */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * arch/arm/include/asm/unwind.h
 4 *
 5 * Copyright (C) 2008 ARM Limited
 
 
 
 
 
 
 
 
 
 
 
 
 
 6 */
 7
 8#ifndef __ASM_UNWIND_H
 9#define __ASM_UNWIND_H
10
11#ifndef __ASSEMBLY__
12
13/* Unwind reason code according the the ARM EABI documents */
14enum unwind_reason_code {
15	URC_OK = 0,			/* operation completed successfully */
16	URC_CONTINUE_UNWIND = 8,
17	URC_FAILURE = 9			/* unspecified failure of some kind */
18};
19
20struct unwind_idx {
21	unsigned long addr_offset;
22	unsigned long insn;
23};
24
25struct unwind_table {
26	struct list_head list;
27	const struct unwind_idx *start;
28	const struct unwind_idx *origin;
29	const struct unwind_idx *stop;
30	unsigned long begin_addr;
31	unsigned long end_addr;
32};
33
34extern struct unwind_table *unwind_table_add(unsigned long start,
35					     unsigned long size,
36					     unsigned long text_addr,
37					     unsigned long text_size);
38extern void unwind_table_del(struct unwind_table *tab);
39extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
40
41#endif	/* !__ASSEMBLY__ */
42
43#ifdef CONFIG_ARM_UNWIND
44#define UNWIND(code...)		code
45#else
46#define UNWIND(code...)
47#endif
48
49#endif	/* __ASM_UNWIND_H */