1#ifndef _UNWIND_H_
2#define _UNWIND_H_
3
4#include <linux/list.h>
5
6
7struct unwind_table_entry {
8 unsigned int region_start;
9 unsigned int region_end;
10 unsigned int Cannot_unwind:1;
11 unsigned int Millicode:1;
12 unsigned int Millicode_save_sr0:1;
13 unsigned int Region_description:2;
14 unsigned int reserved1:1;
15 unsigned int Entry_SR:1;
16 unsigned int Entry_FR:4;
17 unsigned int Entry_GR:5;
18 unsigned int Args_stored:1;
19 unsigned int Variable_Frame:1;
20 unsigned int Separate_Package_Body:1;
21 unsigned int Frame_Extension_Millicode:1;
22 unsigned int Stack_Overflow_Check:1;
23 unsigned int Two_Instruction_SP_Increment:1;
24 unsigned int Ada_Region:1;
25 unsigned int cxx_info:1;
26 unsigned int cxx_try_catch:1;
27 unsigned int sched_entry_seq:1;
28 unsigned int reserved2:1;
29 unsigned int Save_SP:1;
30 unsigned int Save_RP:1;
31 unsigned int Save_MRP_in_frame:1;
32 unsigned int extn_ptr_defined:1;
33 unsigned int Cleanup_defined:1;
34
35 unsigned int MPE_XL_interrupt_marker:1;
36 unsigned int HP_UX_interrupt_marker:1;
37 unsigned int Large_frame:1;
38 unsigned int Pseudo_SP_Set:1;
39 unsigned int reserved4:1;
40 unsigned int Total_frame_size:27;
41};
42
43struct unwind_table {
44 struct list_head list;
45 const char *name;
46 unsigned long gp;
47 unsigned long base_addr;
48 unsigned long start;
49 unsigned long end;
50 const struct unwind_table_entry *table;
51 unsigned long length;
52};
53
54struct unwind_frame_info {
55 struct task_struct *t;
56
57
58
59
60 unsigned long sp, ip, rp, r31;
61 unsigned long prev_sp, prev_ip;
62};
63
64struct unwind_table *
65unwind_table_add(const char *name, unsigned long base_addr,
66 unsigned long gp, void *start, void *end);
67void
68unwind_table_remove(struct unwind_table *table);
69
70void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t,
71 struct pt_regs *regs);
72void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t);
73void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs);
74int unwind_once(struct unwind_frame_info *info);
75int unwind_to_user(struct unwind_frame_info *info);
76
77int unwind_init(void);
78
79#endif
80