1#ifndef _PTRACE32_H
2#define _PTRACE32_H
3
4#include "compat_linux.h"  /* needed for _psw_t32 */
5
6typedef struct {
7	__u32 cr[3];
8} per_cr_words32;
9
10typedef struct {
11	__u16          perc_atmid;          /* 0x096 */
12	__u32          address;             /* 0x098 */
13	__u8           access_id;           /* 0x0a1 */
14} per_lowcore_words32;
15
16typedef struct {
17	union {
18		per_cr_words32   words;
19	} control_regs;
20	/*
21	 * Use these flags instead of setting em_instruction_fetch
22	 * directly they are used so that single stepping can be
23	 * switched on & off while not affecting other tracing
24	 */
25	unsigned  single_step       : 1;
26	unsigned  instruction_fetch : 1;
27	unsigned                    : 30;
28	/*
29	 * These addresses are copied into cr10 & cr11 if single
30	 * stepping is switched off
31	 */
32	__u32     starting_addr;
33	__u32     ending_addr;
34	union {
35		per_lowcore_words32 words;
36	} lowcore;
37} per_struct32;
38
39struct user_regs_struct32
40{
41	_psw_t32 psw;
42	u32 gprs[NUM_GPRS];
43	u32 acrs[NUM_ACRS];
44	u32 orig_gpr2;
45	s390_fp_regs fp_regs;
46	/*
47	 * These per registers are in here so that gdb can modify them
48	 * itself as there is no "official" ptrace interface for hardware
49	 * watchpoints. This is the way intel does it.
50	 */
51	per_struct32 per_info;
52	u32  ieee_instruction_pointer;
53	/* Used to give failing instruction back to user for ieee exceptions */
54};
55
56struct user32 {
57	/* We start with the registers, to mimic the way that "memory"
58	   is returned from the ptrace(3,...) function.  */
59	struct user_regs_struct32 regs; /* Where the registers are actually stored */
60	/* The rest of this junk is to help gdb figure out what goes where */
61	u32 u_tsize;		/* Text segment size (pages). */
62	u32 u_dsize;	        /* Data segment size (pages). */
63	u32 u_ssize;	        /* Stack segment size (pages). */
64	u32 start_code;         /* Starting virtual address of text. */
65	u32 start_stack;	/* Starting virtual address of stack area.
66				   This is actually the bottom of the stack,
67				   the top of the stack is always found in the
68				   esp register.  */
69	s32 signal;     	 /* Signal that caused the core dump. */
70	u32 u_ar0;               /* Used by gdb to help find the values for */
71	                         /* the registers. */
72	u32 magic;		 /* To uniquely identify a core file */
73	char u_comm[32];	 /* User command that was responsible */
74};
75
76typedef struct
77{
78	__u32   len;
79	__u32   kernel_addr;
80	__u32   process_addr;
81} ptrace_area_emu31;
82
83#endif /* _PTRACE32_H */
84