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-rw-r--r--include/asm-sparc/ptrace_64.h346
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diff --git a/include/asm-sparc/ptrace_64.h b/include/asm-sparc/ptrace_64.h
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1#ifndef _SPARC64_PTRACE_H
2#define _SPARC64_PTRACE_H
3
4#include <asm/pstate.h>
5
6/* This struct defines the way the registers are stored on the
7 * stack during a system call and basically all traps.
8 */
9
10/* This magic value must have the low 9 bits clear,
11 * as that is where we encode the %tt value, see below.
12 */
13#define PT_REGS_MAGIC 0x57ac6c00
14
15#ifndef __ASSEMBLY__
16
17#include <linux/types.h>
18
19struct pt_regs {
20 unsigned long u_regs[16]; /* globals and ins */
21 unsigned long tstate;
22 unsigned long tpc;
23 unsigned long tnpc;
24 unsigned int y;
25
26 /* We encode a magic number, PT_REGS_MAGIC, along
27 * with the %tt (trap type) register value at trap
28 * entry time. The magic number allows us to identify
29 * accurately a trap stack frame in the stack
30 * unwinder, and the %tt value allows us to test
31 * things like "in a system call" etc. for an arbitray
32 * process.
33 *
34 * The PT_REGS_MAGIC is choosen such that it can be
35 * loaded completely using just a sethi instruction.
36 */
37 unsigned int magic;
38};
39
40static inline int pt_regs_trap_type(struct pt_regs *regs)
41{
42 return regs->magic & 0x1ff;
43}
44
45static inline bool pt_regs_is_syscall(struct pt_regs *regs)
46{
47 return (regs->tstate & TSTATE_SYSCALL);
48}
49
50static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
51{
52 return (regs->tstate &= ~TSTATE_SYSCALL);
53}
54
55struct pt_regs32 {
56 unsigned int psr;
57 unsigned int pc;
58 unsigned int npc;
59 unsigned int y;
60 unsigned int u_regs[16]; /* globals and ins */
61};
62
63#define UREG_G0 0
64#define UREG_G1 1
65#define UREG_G2 2
66#define UREG_G3 3
67#define UREG_G4 4
68#define UREG_G5 5
69#define UREG_G6 6
70#define UREG_G7 7
71#define UREG_I0 8
72#define UREG_I1 9
73#define UREG_I2 10
74#define UREG_I3 11
75#define UREG_I4 12
76#define UREG_I5 13
77#define UREG_I6 14
78#define UREG_I7 15
79#define UREG_FP UREG_I6
80#define UREG_RETPC UREG_I7
81
82/* A V9 register window */
83struct reg_window {
84 unsigned long locals[8];
85 unsigned long ins[8];
86};
87
88/* A 32-bit register window. */
89struct reg_window32 {
90 unsigned int locals[8];
91 unsigned int ins[8];
92};
93
94/* A V9 Sparc stack frame */
95struct sparc_stackf {
96 unsigned long locals[8];
97 unsigned long ins[6];
98 struct sparc_stackf *fp;
99 unsigned long callers_pc;
100 char *structptr;
101 unsigned long xargs[6];
102 unsigned long xxargs[1];
103};
104
105/* A 32-bit Sparc stack frame */
106struct sparc_stackf32 {
107 unsigned int locals[8];
108 unsigned int ins[6];
109 unsigned int fp;
110 unsigned int callers_pc;
111 unsigned int structptr;
112 unsigned int xargs[6];
113 unsigned int xxargs[1];
114};
115
116struct sparc_trapf {
117 unsigned long locals[8];
118 unsigned long ins[8];
119 unsigned long _unused;
120 struct pt_regs *regs;
121};
122
123#define TRACEREG_SZ sizeof(struct pt_regs)
124#define STACKFRAME_SZ sizeof(struct sparc_stackf)
125
126#define TRACEREG32_SZ sizeof(struct pt_regs32)
127#define STACKFRAME32_SZ sizeof(struct sparc_stackf32)
128
129#ifdef __KERNEL__
130
131struct global_reg_snapshot {
132 unsigned long tstate;
133 unsigned long tpc;
134 unsigned long tnpc;
135 unsigned long o7;
136 unsigned long i7;
137 struct thread_info *thread;
138 unsigned long pad1;
139 unsigned long pad2;
140};
141
142#define __ARCH_WANT_COMPAT_SYS_PTRACE
143
144#define force_successful_syscall_return() \
145do { current_thread_info()->syscall_noerror = 1; \
146} while (0)
147#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
148#define instruction_pointer(regs) ((regs)->tpc)
149#define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
150#ifdef CONFIG_SMP
151extern unsigned long profile_pc(struct pt_regs *);
152#else
153#define profile_pc(regs) instruction_pointer(regs)
154#endif
155extern void show_regs(struct pt_regs *);
156extern void __show_regs(struct pt_regs *);
157#endif
158
159#else /* __ASSEMBLY__ */
160/* For assembly code. */
161#define TRACEREG_SZ 0xa0
162#define STACKFRAME_SZ 0xc0
163
164#define TRACEREG32_SZ 0x50
165#define STACKFRAME32_SZ 0x60
166#endif
167
168#ifdef __KERNEL__
169#define STACK_BIAS 2047
170#endif
171
172/* These are for pt_regs. */
173#define PT_V9_G0 0x00
174#define PT_V9_G1 0x08
175#define PT_V9_G2 0x10
176#define PT_V9_G3 0x18
177#define PT_V9_G4 0x20
178#define PT_V9_G5 0x28
179#define PT_V9_G6 0x30
180#define PT_V9_G7 0x38
181#define PT_V9_I0 0x40
182#define PT_V9_I1 0x48
183#define PT_V9_I2 0x50
184#define PT_V9_I3 0x58
185#define PT_V9_I4 0x60
186#define PT_V9_I5 0x68
187#define PT_V9_I6 0x70
188#define PT_V9_FP PT_V9_I6
189#define PT_V9_I7 0x78
190#define PT_V9_TSTATE 0x80
191#define PT_V9_TPC 0x88
192#define PT_V9_TNPC 0x90
193#define PT_V9_Y 0x98
194#define PT_V9_MAGIC 0x9c
195#define PT_TSTATE PT_V9_TSTATE
196#define PT_TPC PT_V9_TPC
197#define PT_TNPC PT_V9_TNPC
198
199/* These for pt_regs32. */
200#define PT_PSR 0x0
201#define PT_PC 0x4
202#define PT_NPC 0x8
203#define PT_Y 0xc
204#define PT_G0 0x10
205#define PT_WIM PT_G0
206#define PT_G1 0x14
207#define PT_G2 0x18
208#define PT_G3 0x1c
209#define PT_G4 0x20
210#define PT_G5 0x24
211#define PT_G6 0x28
212#define PT_G7 0x2c
213#define PT_I0 0x30
214#define PT_I1 0x34
215#define PT_I2 0x38
216#define PT_I3 0x3c
217#define PT_I4 0x40
218#define PT_I5 0x44
219#define PT_I6 0x48
220#define PT_FP PT_I6
221#define PT_I7 0x4c
222
223/* Reg_window offsets */
224#define RW_V9_L0 0x00
225#define RW_V9_L1 0x08
226#define RW_V9_L2 0x10
227#define RW_V9_L3 0x18
228#define RW_V9_L4 0x20
229#define RW_V9_L5 0x28
230#define RW_V9_L6 0x30
231#define RW_V9_L7 0x38
232#define RW_V9_I0 0x40
233#define RW_V9_I1 0x48
234#define RW_V9_I2 0x50
235#define RW_V9_I3 0x58
236#define RW_V9_I4 0x60
237#define RW_V9_I5 0x68
238#define RW_V9_I6 0x70
239#define RW_V9_I7 0x78
240
241#define RW_L0 0x00
242#define RW_L1 0x04
243#define RW_L2 0x08
244#define RW_L3 0x0c
245#define RW_L4 0x10
246#define RW_L5 0x14
247#define RW_L6 0x18
248#define RW_L7 0x1c
249#define RW_I0 0x20
250#define RW_I1 0x24
251#define RW_I2 0x28
252#define RW_I3 0x2c
253#define RW_I4 0x30
254#define RW_I5 0x34
255#define RW_I6 0x38
256#define RW_I7 0x3c
257
258/* Stack_frame offsets */
259#define SF_V9_L0 0x00
260#define SF_V9_L1 0x08
261#define SF_V9_L2 0x10
262#define SF_V9_L3 0x18
263#define SF_V9_L4 0x20
264#define SF_V9_L5 0x28
265#define SF_V9_L6 0x30
266#define SF_V9_L7 0x38
267#define SF_V9_I0 0x40
268#define SF_V9_I1 0x48
269#define SF_V9_I2 0x50
270#define SF_V9_I3 0x58
271#define SF_V9_I4 0x60
272#define SF_V9_I5 0x68
273#define SF_V9_FP 0x70
274#define SF_V9_PC 0x78
275#define SF_V9_RETP 0x80
276#define SF_V9_XARG0 0x88
277#define SF_V9_XARG1 0x90
278#define SF_V9_XARG2 0x98
279#define SF_V9_XARG3 0xa0
280#define SF_V9_XARG4 0xa8
281#define SF_V9_XARG5 0xb0
282#define SF_V9_XXARG 0xb8
283
284#define SF_L0 0x00
285#define SF_L1 0x04
286#define SF_L2 0x08
287#define SF_L3 0x0c
288#define SF_L4 0x10
289#define SF_L5 0x14
290#define SF_L6 0x18
291#define SF_L7 0x1c
292#define SF_I0 0x20
293#define SF_I1 0x24
294#define SF_I2 0x28
295#define SF_I3 0x2c
296#define SF_I4 0x30
297#define SF_I5 0x34
298#define SF_FP 0x38
299#define SF_PC 0x3c
300#define SF_RETP 0x40
301#define SF_XARG0 0x44
302#define SF_XARG1 0x48
303#define SF_XARG2 0x4c
304#define SF_XARG3 0x50
305#define SF_XARG4 0x54
306#define SF_XARG5 0x58
307#define SF_XXARG 0x5c
308
309#ifdef __KERNEL__
310
311/* global_reg_snapshot offsets */
312#define GR_SNAP_TSTATE 0x00
313#define GR_SNAP_TPC 0x08
314#define GR_SNAP_TNPC 0x10
315#define GR_SNAP_O7 0x18
316#define GR_SNAP_I7 0x20
317#define GR_SNAP_THREAD 0x28
318#define GR_SNAP_PAD1 0x30
319#define GR_SNAP_PAD2 0x38
320
321#endif /* __KERNEL__ */
322
323/* Stuff for the ptrace system call */
324#define PTRACE_SPARC_DETACH 11
325#define PTRACE_GETREGS 12
326#define PTRACE_SETREGS 13
327#define PTRACE_GETFPREGS 14
328#define PTRACE_SETFPREGS 15
329#define PTRACE_READDATA 16
330#define PTRACE_WRITEDATA 17
331#define PTRACE_READTEXT 18
332#define PTRACE_WRITETEXT 19
333#define PTRACE_GETFPAREGS 20
334#define PTRACE_SETFPAREGS 21
335
336/* There are for debugging 64-bit processes, either from a 32 or 64 bit
337 * parent. Thus their complements are for debugging 32-bit processes only.
338 */
339
340#define PTRACE_GETREGS64 22
341#define PTRACE_SETREGS64 23
342/* PTRACE_SYSCALL is 24 */
343#define PTRACE_GETFPREGS64 25
344#define PTRACE_SETFPREGS64 26
345
346#endif /* !(_SPARC64_PTRACE_H) */