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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _PTRACE32_H
2#define _PTRACE32_H
3
Dan Smitheaf1b6f2009-03-26 15:24:40 +01004#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */
Martin Schwidefsky63506c42008-07-14 09:58:54 +02005#include "compat_linux.h" /* needed for psw_compat_t */
Linus Torvalds1da177e2005-04-16 15:20:36 -07006
7typedef struct {
Dan Smitheaf1b6f2009-03-26 15:24:40 +01008 __u32 cr[NUM_CR_WORDS];
Linus Torvalds1da177e2005-04-16 15:20:36 -07009} per_cr_words32;
10
11typedef struct {
12 __u16 perc_atmid; /* 0x096 */
13 __u32 address; /* 0x098 */
14 __u8 access_id; /* 0x0a1 */
15} per_lowcore_words32;
16
17typedef struct {
18 union {
19 per_cr_words32 words;
20 } control_regs;
21 /*
22 * Use these flags instead of setting em_instruction_fetch
23 * directly they are used so that single stepping can be
24 * switched on & off while not affecting other tracing
25 */
26 unsigned single_step : 1;
27 unsigned instruction_fetch : 1;
28 unsigned : 30;
29 /*
30 * These addresses are copied into cr10 & cr11 if single
31 * stepping is switched off
32 */
33 __u32 starting_addr;
34 __u32 ending_addr;
35 union {
36 per_lowcore_words32 words;
37 } lowcore;
38} per_struct32;
39
40struct user_regs_struct32
41{
Martin Schwidefsky63506c42008-07-14 09:58:54 +020042 psw_compat_t psw;
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 u32 gprs[NUM_GPRS];
44 u32 acrs[NUM_ACRS];
45 u32 orig_gpr2;
Jarod Wilson3d6e48f2008-09-09 12:38:56 +020046 /* nb: there's a 4-byte hole here */
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 s390_fp_regs fp_regs;
48 /*
49 * These per registers are in here so that gdb can modify them
50 * itself as there is no "official" ptrace interface for hardware
51 * watchpoints. This is the way intel does it.
52 */
53 per_struct32 per_info;
54 u32 ieee_instruction_pointer;
55 /* Used to give failing instruction back to user for ieee exceptions */
56};
57
58struct user32 {
59 /* We start with the registers, to mimic the way that "memory"
60 is returned from the ptrace(3,...) function. */
61 struct user_regs_struct32 regs; /* Where the registers are actually stored */
62 /* The rest of this junk is to help gdb figure out what goes where */
63 u32 u_tsize; /* Text segment size (pages). */
64 u32 u_dsize; /* Data segment size (pages). */
65 u32 u_ssize; /* Stack segment size (pages). */
66 u32 start_code; /* Starting virtual address of text. */
67 u32 start_stack; /* Starting virtual address of stack area.
68 This is actually the bottom of the stack,
69 the top of the stack is always found in the
70 esp register. */
71 s32 signal; /* Signal that caused the core dump. */
72 u32 u_ar0; /* Used by gdb to help find the values for */
73 /* the registers. */
74 u32 magic; /* To uniquely identify a core file */
75 char u_comm[32]; /* User command that was responsible */
76};
77
78typedef struct
79{
80 __u32 len;
81 __u32 kernel_addr;
82 __u32 process_addr;
83} ptrace_area_emu31;
84
85#endif /* _PTRACE32_H */