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1da177e4 LT |
1 | #ifndef _CRIS_ARCH_PTRACE_H |
2 | #define _CRIS_ARCH_PTRACE_H | |
3 | ||
4 | /* Frame types */ | |
5 | ||
6 | #define CRIS_FRAME_NORMAL 0 /* normal frame without SBFS stacking */ | |
7 | #define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return | |
8 | path */ | |
9 | ||
10 | /* Register numbers in the ptrace system call interface */ | |
11 | ||
12 | #define PT_FRAMETYPE 0 | |
13 | #define PT_ORIG_R10 1 | |
14 | #define PT_R13 2 | |
15 | #define PT_R12 3 | |
16 | #define PT_R11 4 | |
17 | #define PT_R10 5 | |
18 | #define PT_R9 6 | |
19 | #define PT_R8 7 | |
20 | #define PT_R7 8 | |
21 | #define PT_R6 9 | |
22 | #define PT_R5 10 | |
23 | #define PT_R4 11 | |
24 | #define PT_R3 12 | |
25 | #define PT_R2 13 | |
26 | #define PT_R1 14 | |
27 | #define PT_R0 15 | |
28 | #define PT_MOF 16 | |
29 | #define PT_DCCR 17 | |
30 | #define PT_SRP 18 | |
31 | #define PT_IRP 19 /* This is actually the debugged process' PC */ | |
32 | #define PT_CSRINSTR 20 /* CPU Status record remnants - | |
33 | valid if frametype == busfault */ | |
34 | #define PT_CSRADDR 21 | |
35 | #define PT_CSRDATA 22 | |
36 | #define PT_USP 23 /* special case - USP is not in the pt_regs */ | |
37 | #define PT_MAX 23 | |
38 | ||
39 | /* Condition code bit numbers. The same numbers apply to CCR of course, | |
40 | but we use DCCR everywhere else, so let's try and be consistent. */ | |
41 | #define C_DCCR_BITNR 0 | |
42 | #define V_DCCR_BITNR 1 | |
43 | #define Z_DCCR_BITNR 2 | |
44 | #define N_DCCR_BITNR 3 | |
45 | #define X_DCCR_BITNR 4 | |
46 | #define I_DCCR_BITNR 5 | |
47 | #define B_DCCR_BITNR 6 | |
48 | #define M_DCCR_BITNR 7 | |
49 | #define U_DCCR_BITNR 8 | |
50 | #define P_DCCR_BITNR 9 | |
51 | #define F_DCCR_BITNR 10 | |
52 | ||
53 | /* pt_regs not only specifices the format in the user-struct during | |
54 | * ptrace but is also the frame format used in the kernel prologue/epilogues | |
55 | * themselves | |
56 | */ | |
57 | ||
58 | struct pt_regs { | |
59 | unsigned long frametype; /* type of stackframe */ | |
60 | unsigned long orig_r10; | |
61 | /* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */ | |
62 | unsigned long r13; | |
63 | unsigned long r12; | |
64 | unsigned long r11; | |
65 | unsigned long r10; | |
66 | unsigned long r9; | |
67 | unsigned long r8; | |
68 | unsigned long r7; | |
69 | unsigned long r6; | |
70 | unsigned long r5; | |
71 | unsigned long r4; | |
72 | unsigned long r3; | |
73 | unsigned long r2; | |
74 | unsigned long r1; | |
75 | unsigned long r0; | |
76 | unsigned long mof; | |
77 | unsigned long dccr; | |
78 | unsigned long srp; | |
79 | unsigned long irp; /* This is actually the debugged process' PC */ | |
80 | unsigned long csrinstr; | |
81 | unsigned long csraddr; | |
82 | unsigned long csrdata; | |
83 | }; | |
84 | ||
85 | /* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S) | |
86 | * when doing a context-switch. it is used (apart from in resume) when a new | |
87 | * thread is made and we need to make _resume (which is starting it for the | |
88 | * first time) realise what is going on. | |
89 | * | |
90 | * Actually, the use is very close to the thread struct (TSS) in that both the | |
91 | * switch_stack and the TSS are used to keep thread stuff when switching in | |
92 | * _resume. | |
93 | */ | |
94 | ||
95 | struct switch_stack { | |
96 | unsigned long r9; | |
97 | unsigned long r8; | |
98 | unsigned long r7; | |
99 | unsigned long r6; | |
100 | unsigned long r5; | |
101 | unsigned long r4; | |
102 | unsigned long r3; | |
103 | unsigned long r2; | |
104 | unsigned long r1; | |
105 | unsigned long r0; | |
106 | unsigned long return_ip; /* ip that _resume will return to */ | |
107 | }; | |
108 | ||
109 | /* bit 8 is user-mode flag */ | |
110 | #define user_mode(regs) (((regs)->dccr & 0x100) != 0) | |
111 | #define instruction_pointer(regs) ((regs)->irp) | |
112 | #define profile_pc(regs) instruction_pointer(regs) | |
113 | extern void show_regs(struct pt_regs *); | |
114 | ||
115 | #endif |