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1 | #ifndef __SPARC_PTRACE_H |
2 | #define __SPARC_PTRACE_H | |
3 | ||
f5e706ad | 4 | #if defined(__sparc__) && defined(__arch64__) |
f3ec38d5 SR |
5 | /* 64 bit sparc */ |
6 | #include <asm/pstate.h> | |
7 | ||
8 | /* This struct defines the way the registers are stored on the | |
9 | * stack during a system call and basically all traps. | |
10 | */ | |
11 | ||
12 | /* This magic value must have the low 9 bits clear, | |
13 | * as that is where we encode the %tt value, see below. | |
14 | */ | |
15 | #define PT_REGS_MAGIC 0x57ac6c00 | |
16 | ||
17 | #ifndef __ASSEMBLY__ | |
18 | ||
19 | #include <linux/types.h> | |
20 | ||
21 | struct pt_regs { | |
22 | unsigned long u_regs[16]; /* globals and ins */ | |
23 | unsigned long tstate; | |
24 | unsigned long tpc; | |
25 | unsigned long tnpc; | |
26 | unsigned int y; | |
27 | ||
28 | /* We encode a magic number, PT_REGS_MAGIC, along | |
29 | * with the %tt (trap type) register value at trap | |
30 | * entry time. The magic number allows us to identify | |
31 | * accurately a trap stack frame in the stack | |
32 | * unwinder, and the %tt value allows us to test | |
33 | * things like "in a system call" etc. for an arbitray | |
34 | * process. | |
35 | * | |
25985edc | 36 | * The PT_REGS_MAGIC is chosen such that it can be |
f3ec38d5 SR |
37 | * loaded completely using just a sethi instruction. |
38 | */ | |
39 | unsigned int magic; | |
40 | }; | |
41 | ||
42 | struct pt_regs32 { | |
43 | unsigned int psr; | |
44 | unsigned int pc; | |
45 | unsigned int npc; | |
46 | unsigned int y; | |
47 | unsigned int u_regs[16]; /* globals and ins */ | |
48 | }; | |
49 | ||
50 | /* A V9 register window */ | |
51 | struct reg_window { | |
52 | unsigned long locals[8]; | |
53 | unsigned long ins[8]; | |
54 | }; | |
55 | ||
56 | /* A 32-bit register window. */ | |
57 | struct reg_window32 { | |
58 | unsigned int locals[8]; | |
59 | unsigned int ins[8]; | |
60 | }; | |
61 | ||
62 | /* A V9 Sparc stack frame */ | |
63 | struct sparc_stackf { | |
64 | unsigned long locals[8]; | |
65 | unsigned long ins[6]; | |
66 | struct sparc_stackf *fp; | |
67 | unsigned long callers_pc; | |
68 | char *structptr; | |
69 | unsigned long xargs[6]; | |
70 | unsigned long xxargs[1]; | |
71 | }; | |
72 | ||
73 | /* A 32-bit Sparc stack frame */ | |
74 | struct sparc_stackf32 { | |
75 | unsigned int locals[8]; | |
76 | unsigned int ins[6]; | |
77 | unsigned int fp; | |
78 | unsigned int callers_pc; | |
79 | unsigned int structptr; | |
80 | unsigned int xargs[6]; | |
81 | unsigned int xxargs[1]; | |
82 | }; | |
83 | ||
84 | struct sparc_trapf { | |
85 | unsigned long locals[8]; | |
86 | unsigned long ins[8]; | |
87 | unsigned long _unused; | |
88 | struct pt_regs *regs; | |
89 | }; | |
90 | #endif /* (!__ASSEMBLY__) */ | |
f5e706ad | 91 | #else |
f3ec38d5 SR |
92 | /* 32 bit sparc */ |
93 | ||
94 | #include <asm/psr.h> | |
95 | ||
96 | /* This struct defines the way the registers are stored on the | |
97 | * stack during a system call and basically all traps. | |
98 | */ | |
99 | #ifndef __ASSEMBLY__ | |
100 | ||
101 | struct pt_regs { | |
102 | unsigned long psr; | |
103 | unsigned long pc; | |
104 | unsigned long npc; | |
105 | unsigned long y; | |
106 | unsigned long u_regs[16]; /* globals and ins */ | |
107 | }; | |
108 | ||
109 | /* A 32-bit register window. */ | |
110 | struct reg_window32 { | |
111 | unsigned long locals[8]; | |
112 | unsigned long ins[8]; | |
113 | }; | |
114 | ||
115 | /* A Sparc stack frame */ | |
116 | struct sparc_stackf { | |
117 | unsigned long locals[8]; | |
118 | unsigned long ins[6]; | |
119 | struct sparc_stackf *fp; | |
120 | unsigned long callers_pc; | |
121 | char *structptr; | |
122 | unsigned long xargs[6]; | |
123 | unsigned long xxargs[1]; | |
124 | }; | |
125 | #endif /* (!__ASSEMBLY__) */ | |
126 | ||
127 | #endif /* (defined(__sparc__) && defined(__arch64__))*/ | |
128 | ||
129 | #ifndef __ASSEMBLY__ | |
130 | ||
131 | #define TRACEREG_SZ sizeof(struct pt_regs) | |
132 | #define STACKFRAME_SZ sizeof(struct sparc_stackf) | |
133 | ||
134 | #define TRACEREG32_SZ sizeof(struct pt_regs32) | |
135 | #define STACKFRAME32_SZ sizeof(struct sparc_stackf32) | |
136 | ||
137 | #endif /* (!__ASSEMBLY__) */ | |
138 | ||
139 | #define UREG_G0 0 | |
140 | #define UREG_G1 1 | |
141 | #define UREG_G2 2 | |
142 | #define UREG_G3 3 | |
143 | #define UREG_G4 4 | |
144 | #define UREG_G5 5 | |
145 | #define UREG_G6 6 | |
146 | #define UREG_G7 7 | |
147 | #define UREG_I0 8 | |
148 | #define UREG_I1 9 | |
149 | #define UREG_I2 10 | |
150 | #define UREG_I3 11 | |
151 | #define UREG_I4 12 | |
152 | #define UREG_I5 13 | |
153 | #define UREG_I6 14 | |
154 | #define UREG_I7 15 | |
155 | #define UREG_FP UREG_I6 | |
156 | #define UREG_RETPC UREG_I7 | |
157 | ||
158 | #if defined(__sparc__) && defined(__arch64__) | |
159 | /* 64 bit sparc */ | |
160 | ||
161 | #ifndef __ASSEMBLY__ | |
162 | ||
163 | #ifdef __KERNEL__ | |
164 | ||
165 | #include <linux/threads.h> | |
166 | #include <asm/system.h> | |
167 | ||
168 | static inline int pt_regs_trap_type(struct pt_regs *regs) | |
169 | { | |
170 | return regs->magic & 0x1ff; | |
171 | } | |
172 | ||
173 | static inline bool pt_regs_is_syscall(struct pt_regs *regs) | |
174 | { | |
175 | return (regs->tstate & TSTATE_SYSCALL); | |
176 | } | |
177 | ||
178 | static inline bool pt_regs_clear_syscall(struct pt_regs *regs) | |
179 | { | |
180 | return (regs->tstate &= ~TSTATE_SYSCALL); | |
181 | } | |
182 | ||
183 | #define arch_ptrace_stop_needed(exit_code, info) \ | |
184 | ({ flush_user_windows(); \ | |
185 | get_thread_wsaved() != 0; \ | |
186 | }) | |
187 | ||
188 | #define arch_ptrace_stop(exit_code, info) \ | |
189 | synchronize_user_stack() | |
190 | ||
191 | struct global_reg_snapshot { | |
192 | unsigned long tstate; | |
193 | unsigned long tpc; | |
194 | unsigned long tnpc; | |
195 | unsigned long o7; | |
196 | unsigned long i7; | |
197 | unsigned long rpc; | |
198 | struct thread_info *thread; | |
199 | unsigned long pad1; | |
200 | }; | |
201 | extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; | |
202 | ||
203 | #define force_successful_syscall_return() \ | |
204 | do { current_thread_info()->syscall_noerror = 1; \ | |
205 | } while (0) | |
206 | #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) | |
207 | #define instruction_pointer(regs) ((regs)->tpc) | |
33d8881a | 208 | #define instruction_pointer_set(regs, val) ((regs)->tpc = (val)) |
f3ec38d5 SR |
209 | #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) |
210 | #define regs_return_value(regs) ((regs)->u_regs[UREG_I0]) | |
211 | #ifdef CONFIG_SMP | |
212 | extern unsigned long profile_pc(struct pt_regs *); | |
213 | #else | |
214 | #define profile_pc(regs) instruction_pointer(regs) | |
1da177e4 | 215 | #endif |
f3ec38d5 SR |
216 | #endif /* (__KERNEL__) */ |
217 | ||
218 | #else /* __ASSEMBLY__ */ | |
219 | /* For assembly code. */ | |
220 | #define TRACEREG_SZ 0xa0 | |
221 | #define STACKFRAME_SZ 0xc0 | |
222 | ||
223 | #define TRACEREG32_SZ 0x50 | |
224 | #define STACKFRAME32_SZ 0x60 | |
225 | #endif /* __ASSEMBLY__ */ | |
226 | ||
227 | #else /* (defined(__sparc__) && defined(__arch64__)) */ | |
228 | ||
229 | /* 32 bit sparc */ | |
230 | ||
231 | #ifndef __ASSEMBLY__ | |
232 | ||
233 | #ifdef __KERNEL__ | |
234 | ||
235 | #include <asm/system.h> | |
236 | ||
237 | static inline bool pt_regs_is_syscall(struct pt_regs *regs) | |
238 | { | |
239 | return (regs->psr & PSR_SYSCALL); | |
240 | } | |
241 | ||
242 | static inline bool pt_regs_clear_syscall(struct pt_regs *regs) | |
243 | { | |
244 | return (regs->psr &= ~PSR_SYSCALL); | |
245 | } | |
246 | ||
247 | #define arch_ptrace_stop_needed(exit_code, info) \ | |
248 | ({ flush_user_windows(); \ | |
249 | current_thread_info()->w_saved != 0; \ | |
250 | }) | |
251 | ||
252 | #define arch_ptrace_stop(exit_code, info) \ | |
253 | synchronize_user_stack() | |
254 | ||
255 | #define user_mode(regs) (!((regs)->psr & PSR_PS)) | |
256 | #define instruction_pointer(regs) ((regs)->pc) | |
257 | #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) | |
258 | unsigned long profile_pc(struct pt_regs *); | |
f3ec38d5 SR |
259 | #endif /* (__KERNEL__) */ |
260 | ||
261 | #else /* (!__ASSEMBLY__) */ | |
262 | /* For assembly code. */ | |
263 | #define TRACEREG_SZ 0x50 | |
264 | #define STACKFRAME_SZ 0x60 | |
265 | #endif /* (!__ASSEMBLY__) */ | |
266 | ||
267 | #endif /* (defined(__sparc__) && defined(__arch64__)) */ | |
268 | ||
269 | #ifdef __KERNEL__ | |
270 | #define STACK_BIAS 2047 | |
1da177e4 | 271 | #endif |
f3ec38d5 SR |
272 | |
273 | /* These are for pt_regs. */ | |
274 | #define PT_V9_G0 0x00 | |
275 | #define PT_V9_G1 0x08 | |
276 | #define PT_V9_G2 0x10 | |
277 | #define PT_V9_G3 0x18 | |
278 | #define PT_V9_G4 0x20 | |
279 | #define PT_V9_G5 0x28 | |
280 | #define PT_V9_G6 0x30 | |
281 | #define PT_V9_G7 0x38 | |
282 | #define PT_V9_I0 0x40 | |
283 | #define PT_V9_I1 0x48 | |
284 | #define PT_V9_I2 0x50 | |
285 | #define PT_V9_I3 0x58 | |
286 | #define PT_V9_I4 0x60 | |
287 | #define PT_V9_I5 0x68 | |
288 | #define PT_V9_I6 0x70 | |
289 | #define PT_V9_FP PT_V9_I6 | |
290 | #define PT_V9_I7 0x78 | |
291 | #define PT_V9_TSTATE 0x80 | |
292 | #define PT_V9_TPC 0x88 | |
293 | #define PT_V9_TNPC 0x90 | |
294 | #define PT_V9_Y 0x98 | |
295 | #define PT_V9_MAGIC 0x9c | |
296 | #define PT_TSTATE PT_V9_TSTATE | |
297 | #define PT_TPC PT_V9_TPC | |
298 | #define PT_TNPC PT_V9_TNPC | |
299 | ||
300 | /* These for pt_regs32. */ | |
301 | #define PT_PSR 0x0 | |
302 | #define PT_PC 0x4 | |
303 | #define PT_NPC 0x8 | |
304 | #define PT_Y 0xc | |
305 | #define PT_G0 0x10 | |
306 | #define PT_WIM PT_G0 | |
307 | #define PT_G1 0x14 | |
308 | #define PT_G2 0x18 | |
309 | #define PT_G3 0x1c | |
310 | #define PT_G4 0x20 | |
311 | #define PT_G5 0x24 | |
312 | #define PT_G6 0x28 | |
313 | #define PT_G7 0x2c | |
314 | #define PT_I0 0x30 | |
315 | #define PT_I1 0x34 | |
316 | #define PT_I2 0x38 | |
317 | #define PT_I3 0x3c | |
318 | #define PT_I4 0x40 | |
319 | #define PT_I5 0x44 | |
320 | #define PT_I6 0x48 | |
321 | #define PT_FP PT_I6 | |
322 | #define PT_I7 0x4c | |
323 | ||
324 | /* Reg_window offsets */ | |
325 | #define RW_V9_L0 0x00 | |
326 | #define RW_V9_L1 0x08 | |
327 | #define RW_V9_L2 0x10 | |
328 | #define RW_V9_L3 0x18 | |
329 | #define RW_V9_L4 0x20 | |
330 | #define RW_V9_L5 0x28 | |
331 | #define RW_V9_L6 0x30 | |
332 | #define RW_V9_L7 0x38 | |
333 | #define RW_V9_I0 0x40 | |
334 | #define RW_V9_I1 0x48 | |
335 | #define RW_V9_I2 0x50 | |
336 | #define RW_V9_I3 0x58 | |
337 | #define RW_V9_I4 0x60 | |
338 | #define RW_V9_I5 0x68 | |
339 | #define RW_V9_I6 0x70 | |
340 | #define RW_V9_I7 0x78 | |
341 | ||
342 | #define RW_L0 0x00 | |
343 | #define RW_L1 0x04 | |
344 | #define RW_L2 0x08 | |
345 | #define RW_L3 0x0c | |
346 | #define RW_L4 0x10 | |
347 | #define RW_L5 0x14 | |
348 | #define RW_L6 0x18 | |
349 | #define RW_L7 0x1c | |
350 | #define RW_I0 0x20 | |
351 | #define RW_I1 0x24 | |
352 | #define RW_I2 0x28 | |
353 | #define RW_I3 0x2c | |
354 | #define RW_I4 0x30 | |
355 | #define RW_I5 0x34 | |
356 | #define RW_I6 0x38 | |
357 | #define RW_I7 0x3c | |
358 | ||
359 | /* Stack_frame offsets */ | |
360 | #define SF_V9_L0 0x00 | |
361 | #define SF_V9_L1 0x08 | |
362 | #define SF_V9_L2 0x10 | |
363 | #define SF_V9_L3 0x18 | |
364 | #define SF_V9_L4 0x20 | |
365 | #define SF_V9_L5 0x28 | |
366 | #define SF_V9_L6 0x30 | |
367 | #define SF_V9_L7 0x38 | |
368 | #define SF_V9_I0 0x40 | |
369 | #define SF_V9_I1 0x48 | |
370 | #define SF_V9_I2 0x50 | |
371 | #define SF_V9_I3 0x58 | |
372 | #define SF_V9_I4 0x60 | |
373 | #define SF_V9_I5 0x68 | |
374 | #define SF_V9_FP 0x70 | |
375 | #define SF_V9_PC 0x78 | |
376 | #define SF_V9_RETP 0x80 | |
377 | #define SF_V9_XARG0 0x88 | |
378 | #define SF_V9_XARG1 0x90 | |
379 | #define SF_V9_XARG2 0x98 | |
380 | #define SF_V9_XARG3 0xa0 | |
381 | #define SF_V9_XARG4 0xa8 | |
382 | #define SF_V9_XARG5 0xb0 | |
383 | #define SF_V9_XXARG 0xb8 | |
384 | ||
385 | #define SF_L0 0x00 | |
386 | #define SF_L1 0x04 | |
387 | #define SF_L2 0x08 | |
388 | #define SF_L3 0x0c | |
389 | #define SF_L4 0x10 | |
390 | #define SF_L5 0x14 | |
391 | #define SF_L6 0x18 | |
392 | #define SF_L7 0x1c | |
393 | #define SF_I0 0x20 | |
394 | #define SF_I1 0x24 | |
395 | #define SF_I2 0x28 | |
396 | #define SF_I3 0x2c | |
397 | #define SF_I4 0x30 | |
398 | #define SF_I5 0x34 | |
399 | #define SF_FP 0x38 | |
400 | #define SF_PC 0x3c | |
401 | #define SF_RETP 0x40 | |
402 | #define SF_XARG0 0x44 | |
403 | #define SF_XARG1 0x48 | |
404 | #define SF_XARG2 0x4c | |
405 | #define SF_XARG3 0x50 | |
406 | #define SF_XARG4 0x54 | |
407 | #define SF_XARG5 0x58 | |
408 | #define SF_XXARG 0x5c | |
409 | ||
410 | #ifdef __KERNEL__ | |
411 | ||
412 | /* global_reg_snapshot offsets */ | |
413 | #define GR_SNAP_TSTATE 0x00 | |
414 | #define GR_SNAP_TPC 0x08 | |
415 | #define GR_SNAP_TNPC 0x10 | |
416 | #define GR_SNAP_O7 0x18 | |
417 | #define GR_SNAP_I7 0x20 | |
418 | #define GR_SNAP_RPC 0x28 | |
419 | #define GR_SNAP_THREAD 0x30 | |
420 | #define GR_SNAP_PAD1 0x38 | |
421 | ||
422 | #endif /* __KERNEL__ */ | |
423 | ||
424 | /* Stuff for the ptrace system call */ | |
425 | #define PTRACE_SPARC_DETACH 11 | |
426 | #define PTRACE_GETREGS 12 | |
427 | #define PTRACE_SETREGS 13 | |
428 | #define PTRACE_GETFPREGS 14 | |
429 | #define PTRACE_SETFPREGS 15 | |
430 | #define PTRACE_READDATA 16 | |
431 | #define PTRACE_WRITEDATA 17 | |
432 | #define PTRACE_READTEXT 18 | |
433 | #define PTRACE_WRITETEXT 19 | |
434 | #define PTRACE_GETFPAREGS 20 | |
435 | #define PTRACE_SETFPAREGS 21 | |
436 | ||
437 | /* There are for debugging 64-bit processes, either from a 32 or 64 bit | |
438 | * parent. Thus their complements are for debugging 32-bit processes only. | |
439 | */ | |
440 | ||
441 | #define PTRACE_GETREGS64 22 | |
442 | #define PTRACE_SETREGS64 23 | |
443 | /* PTRACE_SYSCALL is 24 */ | |
444 | #define PTRACE_GETFPREGS64 25 | |
445 | #define PTRACE_SETFPREGS64 26 | |
446 | ||
447 | #endif /* !(__SPARC_PTRACE_H) */ |