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106174d0 LFT |
1 | /* |
2 | * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> | |
3 | * Copyright (C) 2004 Microtronix Datacom Ltd | |
4 | * | |
5 | * based on m68k asm/processor.h | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General Public | |
8 | * License. See the file "COPYING" in the main directory of this archive | |
9 | * for more details. | |
10 | */ | |
11 | ||
12 | #ifndef _UAPI_ASM_NIOS2_PTRACE_H | |
13 | #define _UAPI_ASM_NIOS2_PTRACE_H | |
14 | ||
15 | #ifndef __ASSEMBLY__ | |
16 | ||
17 | /* | |
18 | * Register numbers used by 'ptrace' system call interface. | |
19 | */ | |
20 | ||
21 | /* GP registers */ | |
22 | #define PTR_R0 0 | |
23 | #define PTR_R1 1 | |
24 | #define PTR_R2 2 | |
25 | #define PTR_R3 3 | |
26 | #define PTR_R4 4 | |
27 | #define PTR_R5 5 | |
28 | #define PTR_R6 6 | |
29 | #define PTR_R7 7 | |
30 | #define PTR_R8 8 | |
31 | #define PTR_R9 9 | |
32 | #define PTR_R10 10 | |
33 | #define PTR_R11 11 | |
34 | #define PTR_R12 12 | |
35 | #define PTR_R13 13 | |
36 | #define PTR_R14 14 | |
37 | #define PTR_R15 15 | |
38 | #define PTR_R16 16 | |
39 | #define PTR_R17 17 | |
40 | #define PTR_R18 18 | |
41 | #define PTR_R19 19 | |
42 | #define PTR_R20 20 | |
43 | #define PTR_R21 21 | |
44 | #define PTR_R22 22 | |
45 | #define PTR_R23 23 | |
46 | #define PTR_R24 24 | |
47 | #define PTR_R25 25 | |
48 | #define PTR_GP 26 | |
49 | #define PTR_SP 27 | |
50 | #define PTR_FP 28 | |
51 | #define PTR_EA 29 | |
52 | #define PTR_BA 30 | |
53 | #define PTR_RA 31 | |
54 | /* Control registers */ | |
55 | #define PTR_PC 32 | |
56 | #define PTR_STATUS 33 | |
57 | #define PTR_ESTATUS 34 | |
58 | #define PTR_BSTATUS 35 | |
59 | #define PTR_IENABLE 36 | |
60 | #define PTR_IPENDING 37 | |
61 | #define PTR_CPUID 38 | |
62 | #define PTR_CTL6 39 | |
63 | #define PTR_CTL7 40 | |
64 | #define PTR_PTEADDR 41 | |
65 | #define PTR_TLBACC 42 | |
66 | #define PTR_TLBMISC 43 | |
67 | ||
68 | #define NUM_PTRACE_REG (PTR_TLBMISC + 1) | |
69 | ||
70 | /* this struct defines the way the registers are stored on the | |
71 | stack during a system call. | |
72 | ||
73 | There is a fake_regs in setup.c that has to match pt_regs.*/ | |
74 | ||
75 | struct pt_regs { | |
76 | unsigned long r8; /* r8-r15 Caller-saved GP registers */ | |
77 | unsigned long r9; | |
78 | unsigned long r10; | |
79 | unsigned long r11; | |
80 | unsigned long r12; | |
81 | unsigned long r13; | |
82 | unsigned long r14; | |
83 | unsigned long r15; | |
84 | unsigned long r1; /* Assembler temporary */ | |
85 | unsigned long r2; /* Retval LS 32bits */ | |
86 | unsigned long r3; /* Retval MS 32bits */ | |
87 | unsigned long r4; /* r4-r7 Register arguments */ | |
88 | unsigned long r5; | |
89 | unsigned long r6; | |
90 | unsigned long r7; | |
91 | unsigned long orig_r2; /* Copy of r2 ?? */ | |
92 | unsigned long ra; /* Return address */ | |
93 | unsigned long fp; /* Frame pointer */ | |
94 | unsigned long sp; /* Stack pointer */ | |
95 | unsigned long gp; /* Global pointer */ | |
96 | unsigned long estatus; | |
97 | unsigned long ea; /* Exception return address (pc) */ | |
98 | unsigned long orig_r7; | |
99 | }; | |
100 | ||
101 | /* | |
102 | * This is the extended stack used by signal handlers and the context | |
103 | * switcher: it's pushed after the normal "struct pt_regs". | |
104 | */ | |
105 | struct switch_stack { | |
106 | unsigned long r16; /* r16-r23 Callee-saved GP registers */ | |
107 | unsigned long r17; | |
108 | unsigned long r18; | |
109 | unsigned long r19; | |
110 | unsigned long r20; | |
111 | unsigned long r21; | |
112 | unsigned long r22; | |
113 | unsigned long r23; | |
114 | unsigned long fp; | |
115 | unsigned long gp; | |
116 | unsigned long ra; | |
117 | }; | |
118 | ||
119 | #endif /* __ASSEMBLY__ */ | |
120 | #endif /* _UAPI_ASM_NIOS2_PTRACE_H */ |