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/arch/parisc/include/asm/unwind.h

https://github.com/aicjofs/android_kernel_lge_v500_20d_f2fs
C Header | 79 lines | 65 code | 9 blank | 5 comment | 0 complexity | 1d18cb7badc1ed257cae2d679b5b0f3a MD5 | raw file
 1#ifndef _UNWIND_H_
 2#define _UNWIND_H_
 3
 4#include <linux/list.h>
 5
 6/* From ABI specifications */
 7struct unwind_table_entry {
 8	unsigned int region_start;
 9	unsigned int region_end;
10	unsigned int Cannot_unwind:1; /* 0 */
11	unsigned int Millicode:1;	/* 1 */
12	unsigned int Millicode_save_sr0:1;	/* 2 */
13	unsigned int Region_description:2;	/* 3..4 */
14	unsigned int reserved1:1;	/* 5 */
15	unsigned int Entry_SR:1;	/* 6 */
16	unsigned int Entry_FR:4;	/* number saved *//* 7..10 */
17	unsigned int Entry_GR:5;	/* number saved *//* 11..15 */
18	unsigned int Args_stored:1;	/* 16 */
19	unsigned int Variable_Frame:1;	/* 17 */
20	unsigned int Separate_Package_Body:1;	/* 18 */
21	unsigned int Frame_Extension_Millicode:1;	/* 19 */
22	unsigned int Stack_Overflow_Check:1;	/* 20 */
23	unsigned int Two_Instruction_SP_Increment:1;	/* 21 */
24	unsigned int Ada_Region:1;	/* 22 */
25	unsigned int cxx_info:1;	/* 23 */
26	unsigned int cxx_try_catch:1;	/* 24 */
27	unsigned int sched_entry_seq:1;	/* 25 */
28	unsigned int reserved2:1;	/* 26 */
29	unsigned int Save_SP:1;	/* 27 */
30	unsigned int Save_RP:1;	/* 28 */
31	unsigned int Save_MRP_in_frame:1;	/* 29 */
32	unsigned int extn_ptr_defined:1;	/* 30 */
33	unsigned int Cleanup_defined:1;	/* 31 */
34	
35	unsigned int MPE_XL_interrupt_marker:1;	/* 0 */
36	unsigned int HP_UX_interrupt_marker:1;	/* 1 */
37	unsigned int Large_frame:1;	/* 2 */
38	unsigned int Pseudo_SP_Set:1;	/* 3 */
39	unsigned int reserved4:1;	/* 4 */
40	unsigned int Total_frame_size:27;	/* 5..31 */
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	/* Eventually we would like to be able to get at any of the registers
57	   available; but for now we only try to get the sp and ip for each
58	   frame */
59	/* struct pt_regs regs; */
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