1 /* $Id: ptrace.h,v 1.25 1997/03/04 16:27:25 jj Exp $ */
2 #ifndef _SPARC_PTRACE_H
3 #define _SPARC_PTRACE_H
4
5 #include <asm/psr.h>
6
7 /* This struct defines the way the registers are stored on the
8 * stack during a system call and basically all traps.
9 */
10
11 #ifndef __ASSEMBLY__
12
13 struct pt_regs {
14 unsigned long psr;
15 unsigned long pc;
16 unsigned long npc;
17 unsigned long y;
18 unsigned long u_regs[16]; /* globals and ins */
19 };
20
21 #define UREG_G0 0
22 #define UREG_G1 1
23 #define UREG_G2 2
24 #define UREG_G3 3
25 #define UREG_G4 4
26 #define UREG_G5 5
27 #define UREG_G6 6
28 #define UREG_G7 7
29 #define UREG_I0 8
30 #define UREG_I1 9
31 #define UREG_I2 10
32 #define UREG_I3 11
33 #define UREG_I4 12
34 #define UREG_I5 13
35 #define UREG_I6 14
36 #define UREG_I7 15
37 #define UREG_WIM UREG_G0
38 #define UREG_FADDR UREG_G0
39 #define UREG_FP UREG_I6
40 #define UREG_RETPC UREG_I7
41
42 /* A register window */
43 struct reg_window {
44 unsigned long locals[8];
45 unsigned long ins[8];
46 };
47
48 /* A Sparc stack frame */
49 struct sparc_stackf {
50 unsigned long locals[8];
51 unsigned long ins[6];
52 struct sparc_stackf *fp;
53 unsigned long callers_pc;
54 char *structptr;
55 unsigned long xargs[6];
56 unsigned long xxargs[1];
57 };
58
59 #define TRACEREG_SZ sizeof(struct pt_regs)
60 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
61 #define REGWIN_SZ sizeof(struct reg_window)
62
63 #ifdef __KERNEL__
64 #define user_mode(regs) (!((regs)->psr & PSR_PS))
65 #define instruction_pointer(regs) ((regs)->pc)
66 extern void show_regs(struct pt_regs *);
67 #endif
68
69 #else /* __ASSEMBLY__ */
70 /* For assembly code. */
71 #define TRACEREG_SZ 0x50
72 #define STACKFRAME_SZ 0x60
73 #define REGWIN_SZ 0x40
74 #endif
75
76 #include <asm/asm_offsets.h>
77
78 /* These are for pt_regs. */
79 #define PT_PSR 0x0
80 #define PT_PC 0x4
81 #define PT_NPC 0x8
82 #define PT_Y 0xc
83 #define PT_G0 0x10
84 #define PT_WIM PT_G0
85 #define PT_G1 0x14
86 #define PT_G2 0x18
87 #define PT_G3 0x1c
88 #define PT_G4 0x20
89 #define PT_G5 0x24
90 #define PT_G6 0x28
91 #define PT_G7 0x2c
92 #define PT_I0 0x30
93 #define PT_I1 0x34
94 #define PT_I2 0x38
95 #define PT_I3 0x3c
96 #define PT_I4 0x40
97 #define PT_I5 0x44
98 #define PT_I6 0x48
99 #define PT_FP PT_I6
100 #define PT_I7 0x4c
101
102 /* Reg_window offsets */
103 #define RW_L0 0x00
104 #define RW_L1 0x04
105 #define RW_L2 0x08
106 #define RW_L3 0x0c
107 #define RW_L4 0x10
108 #define RW_L5 0x14
109 #define RW_L6 0x18
110 #define RW_L7 0x1c
111 #define RW_I0 0x20
112 #define RW_I1 0x24
113 #define RW_I2 0x28
114 #define RW_I3 0x2c
115 #define RW_I4 0x30
116 #define RW_I5 0x34
117 #define RW_I6 0x38
118 #define RW_I7 0x3c
119
120 /* Stack_frame offsets */
121 #define SF_L0 0x00
122 #define SF_L1 0x04
123 #define SF_L2 0x08
124 #define SF_L3 0x0c
125 #define SF_L4 0x10
126 #define SF_L5 0x14
127 #define SF_L6 0x18
128 #define SF_L7 0x1c
129 #define SF_I0 0x20
130 #define SF_I1 0x24
131 #define SF_I2 0x28
132 #define SF_I3 0x2c
133 #define SF_I4 0x30
134 #define SF_I5 0x34
135 #define SF_FP 0x38
136 #define SF_PC 0x3c
137 #define SF_RETP 0x40
138 #define SF_XARG0 0x44
139 #define SF_XARG1 0x48
140 #define SF_XARG2 0x4c
141 #define SF_XARG3 0x50
142 #define SF_XARG4 0x54
143 #define SF_XARG5 0x58
144 #define SF_XXARG 0x5c
145
146 /* Stuff for the ptrace system call */
147 #define PTRACE_SUNATTACH 10
148 #define PTRACE_SUNDETACH 11
149 #define PTRACE_GETREGS 12
150 #define PTRACE_SETREGS 13
151 #define PTRACE_GETFPREGS 14
152 #define PTRACE_SETFPREGS 15
153 #define PTRACE_READDATA 16
154 #define PTRACE_WRITEDATA 17
155 #define PTRACE_READTEXT 18
156 #define PTRACE_WRITETEXT 19
157 #define PTRACE_GETFPAREGS 20
158 #define PTRACE_SETFPAREGS 21
159
160 #define PTRACE_GETUCODE 29 /* stupid bsd-ism */
161
162
163 #endif /* !(_SPARC_PTRACE_H) */
164
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