blob: 25bc1f5a791b6214d1e5a1ce247d156575c062cf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
#ifndef _CRIS_PTRACE_H
#define _CRIS_PTRACE_H
/* Register numbers in the ptrace system call interface */
#define PT_FRAMETYPE 0
#define PT_ORIG_R10 1
#define PT_R13 2
#define PT_R12 3
#define PT_R11 4
#define PT_R10 5
#define PT_R9 6
#define PT_R8 7
#define PT_R7 8
#define PT_R6 9
#define PT_R5 10
#define PT_R4 11
#define PT_R3 12
#define PT_R2 13
#define PT_R1 14
#define PT_R0 15
#define PT_MOF 16
#define PT_DCCR 17
#define PT_SRP 18
#define PT_IRP 19
#define PT_MAX 19
#define PT_USP 42 /* special case - USP is not in the pt_regs */
/* Frame types */
#define CRIS_FRAME_NORMAL 0 /* normal frame like pt_regs struct */
#define CRIS_FRAME_BUSFAULT 1 /* SBFS frame of 4 longwords on top, including irp */
#define CRIS_FRAME_FIXUP 2 /* SBFS frame which should do a normal return, not RBF */
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
/* pt_regs not only specifices the format in the user-struct during
* ptrace but is also the frame format used in the kernel prologue/epilogues
* themselves
*/
struct pt_regs {
unsigned long frametype; /* type of stackframe */
unsigned long orig_r10;
/* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */
unsigned long r13; /* 8 */
unsigned long r12; /* 12 */
unsigned long r11; /* 16 */
unsigned long r10; /* 20 */
unsigned long r9;
unsigned long r8;
unsigned long r7;
unsigned long r6;
unsigned long r5;
unsigned long r4;
unsigned long r3;
unsigned long r2;
unsigned long r1;
unsigned long r0;
unsigned long mof;
unsigned long dccr;
unsigned long srp;
unsigned long irp;
};
/* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S) when
doing a context-switch. it is used (apart from in resume) when a new thread is made
and we need to make _resume (which is starting it for the first time) realise what
is going on.
actually, the use is very close to the thread struct (TSS) in that both the switch_stack
and the TSS are used to keep thread stuff when switching in _resume.
*/
struct switch_stack {
unsigned long r9;
unsigned long r8;
unsigned long r7;
unsigned long r6;
unsigned long r5;
unsigned long r4;
unsigned long r3;
unsigned long r2;
unsigned long r1;
unsigned long r0;
unsigned long return_ip; /* ip that _resume will return to */
};
#ifdef __KERNEL__
/* bit 8 is user-mode flag */
#define user_mode(regs) ((regs)->dccr & 0x100)
#define instruction_pointer(regs) ((regs)->irp)
extern void show_regs(struct pt_regs *);
#endif
#endif /* _CRIS_PTRACE_H */
|
