Merge branches 'fixes' and 'misc' into for-next
[linux-2.6-microblaze.git] / arch / arm / include / 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 */
14 enum 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
20 struct unwind_idx {
21         unsigned long addr_offset;
22         unsigned long insn;
23 };
24
25 struct 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
34 extern struct unwind_table *unwind_table_add(unsigned long start,
35                                              unsigned long size,
36                                              unsigned long text_addr,
37                                              unsigned long text_size);
38 extern void unwind_table_del(struct unwind_table *tab);
39 extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk,
40                              const char *loglvl);
41
42 #endif  /* !__ASSEMBLY__ */
43
44 #ifdef CONFIG_ARM_UNWIND
45 #define UNWIND(code...)         code
46 #else
47 #define UNWIND(code...)
48 #endif
49
50 #endif  /* __ASM_UNWIND_H */