2 * arch/arm/include/asm/unwind.h
4 * Copyright (C) 2008 ARM Limited
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.
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.
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
20 #ifndef __ASM_UNWIND_H
21 #define __ASM_UNWIND_H
25 /* Unwind reason code according the the ARM EABI documents */
26 enum unwind_reason_code {
27 URC_OK = 0, /* operation completed successfully */
28 URC_CONTINUE_UNWIND = 8,
29 URC_FAILURE = 9 /* unspecified failure of some kind */
33 unsigned long addr_offset;
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;
46 extern struct unwind_table *unwind_table_add(unsigned long start,
48 unsigned long text_addr,
49 unsigned long text_size);
50 extern void unwind_table_del(struct unwind_table *tab);
51 extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
53 #endif /* !__ASSEMBLY__ */
55 #ifdef CONFIG_ARM_UNWIND
56 #define UNWIND(code...) code
58 #define UNWIND(code...)
61 #endif /* __ASM_UNWIND_H */