diff options
Diffstat (limited to 'arch/sparc/include/asm/ptrace.h')
-rw-r--r-- | arch/sparc/include/asm/ptrace.h | 448 |
1 files changed, 444 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/ptrace.h b/arch/sparc/include/asm/ptrace.h index 6dcbe2eed2e2..30b0b797dc0c 100644 --- a/arch/sparc/include/asm/ptrace.h +++ b/arch/sparc/include/asm/ptrace.h | |||
@@ -1,8 +1,448 @@ | |||
1 | #ifndef ___ASM_SPARC_PTRACE_H | 1 | #ifndef __SPARC_PTRACE_H |
2 | #define ___ASM_SPARC_PTRACE_H | 2 | #define __SPARC_PTRACE_H |
3 | |||
3 | #if defined(__sparc__) && defined(__arch64__) | 4 | #if defined(__sparc__) && defined(__arch64__) |
4 | #include <asm/ptrace_64.h> | 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 | * | ||
36 | * The PT_REGS_MAGIC is choosen such that it can be | ||
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__) */ | ||
5 | #else | 91 | #else |
6 | #include <asm/ptrace_32.h> | 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) | ||
208 | #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) | ||
209 | #define regs_return_value(regs) ((regs)->u_regs[UREG_I0]) | ||
210 | #ifdef CONFIG_SMP | ||
211 | extern unsigned long profile_pc(struct pt_regs *); | ||
212 | #else | ||
213 | #define profile_pc(regs) instruction_pointer(regs) | ||
7 | #endif | 214 | #endif |
215 | extern void show_regs(struct pt_regs *); | ||
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 *); | ||
259 | extern void show_regs(struct pt_regs *); | ||
260 | #endif /* (__KERNEL__) */ | ||
261 | |||
262 | #else /* (!__ASSEMBLY__) */ | ||
263 | /* For assembly code. */ | ||
264 | #define TRACEREG_SZ 0x50 | ||
265 | #define STACKFRAME_SZ 0x60 | ||
266 | #endif /* (!__ASSEMBLY__) */ | ||
267 | |||
268 | #endif /* (defined(__sparc__) && defined(__arch64__)) */ | ||
269 | |||
270 | #ifdef __KERNEL__ | ||
271 | #define STACK_BIAS 2047 | ||
8 | #endif | 272 | #endif |
273 | |||
274 | /* These are for pt_regs. */ | ||
275 | #define PT_V9_G0 0x00 | ||
276 | #define PT_V9_G1 0x08 | ||
277 | #define PT_V9_G2 0x10 | ||
278 | #define PT_V9_G3 0x18 | ||
279 | #define PT_V9_G4 0x20 | ||
280 | #define PT_V9_G5 0x28 | ||
281 | #define PT_V9_G6 0x30 | ||
282 | #define PT_V9_G7 0x38 | ||
283 | #define PT_V9_I0 0x40 | ||
284 | #define PT_V9_I1 0x48 | ||
285 | #define PT_V9_I2 0x50 | ||
286 | #define PT_V9_I3 0x58 | ||
287 | #define PT_V9_I4 0x60 | ||
288 | #define PT_V9_I5 0x68 | ||
289 | #define PT_V9_I6 0x70 | ||
290 | #define PT_V9_FP PT_V9_I6 | ||
291 | #define PT_V9_I7 0x78 | ||
292 | #define PT_V9_TSTATE 0x80 | ||
293 | #define PT_V9_TPC 0x88 | ||
294 | #define PT_V9_TNPC 0x90 | ||
295 | #define PT_V9_Y 0x98 | ||
296 | #define PT_V9_MAGIC 0x9c | ||
297 | #define PT_TSTATE PT_V9_TSTATE | ||
298 | #define PT_TPC PT_V9_TPC | ||
299 | #define PT_TNPC PT_V9_TNPC | ||
300 | |||
301 | /* These for pt_regs32. */ | ||
302 | #define PT_PSR 0x0 | ||
303 | #define PT_PC 0x4 | ||
304 | #define PT_NPC 0x8 | ||
305 | #define PT_Y 0xc | ||
306 | #define PT_G0 0x10 | ||
307 | #define PT_WIM PT_G0 | ||
308 | #define PT_G1 0x14 | ||
309 | #define PT_G2 0x18 | ||
310 | #define PT_G3 0x1c | ||
311 | #define PT_G4 0x20 | ||
312 | #define PT_G5 0x24 | ||
313 | #define PT_G6 0x28 | ||
314 | #define PT_G7 0x2c | ||
315 | #define PT_I0 0x30 | ||
316 | #define PT_I1 0x34 | ||
317 | #define PT_I2 0x38 | ||
318 | #define PT_I3 0x3c | ||
319 | #define PT_I4 0x40 | ||
320 | #define PT_I5 0x44 | ||
321 | #define PT_I6 0x48 | ||
322 | #define PT_FP PT_I6 | ||
323 | #define PT_I7 0x4c | ||
324 | |||
325 | /* Reg_window offsets */ | ||
326 | #define RW_V9_L0 0x00 | ||
327 | #define RW_V9_L1 0x08 | ||
328 | #define RW_V9_L2 0x10 | ||
329 | #define RW_V9_L3 0x18 | ||
330 | #define RW_V9_L4 0x20 | ||
331 | #define RW_V9_L5 0x28 | ||
332 | #define RW_V9_L6 0x30 | ||
333 | #define RW_V9_L7 0x38 | ||
334 | #define RW_V9_I0 0x40 | ||
335 | #define RW_V9_I1 0x48 | ||
336 | #define RW_V9_I2 0x50 | ||
337 | #define RW_V9_I3 0x58 | ||
338 | #define RW_V9_I4 0x60 | ||
339 | #define RW_V9_I5 0x68 | ||
340 | #define RW_V9_I6 0x70 | ||
341 | #define RW_V9_I7 0x78 | ||
342 | |||
343 | #define RW_L0 0x00 | ||
344 | #define RW_L1 0x04 | ||
345 | #define RW_L2 0x08 | ||
346 | #define RW_L3 0x0c | ||
347 | #define RW_L4 0x10 | ||
348 | #define RW_L5 0x14 | ||
349 | #define RW_L6 0x18 | ||
350 | #define RW_L7 0x1c | ||
351 | #define RW_I0 0x20 | ||
352 | #define RW_I1 0x24 | ||
353 | #define RW_I2 0x28 | ||
354 | #define RW_I3 0x2c | ||
355 | #define RW_I4 0x30 | ||
356 | #define RW_I5 0x34 | ||
357 | #define RW_I6 0x38 | ||
358 | #define RW_I7 0x3c | ||
359 | |||
360 | /* Stack_frame offsets */ | ||
361 | #define SF_V9_L0 0x00 | ||
362 | #define SF_V9_L1 0x08 | ||
363 | #define SF_V9_L2 0x10 | ||
364 | #define SF_V9_L3 0x18 | ||
365 | #define SF_V9_L4 0x20 | ||
366 | #define SF_V9_L5 0x28 | ||
367 | #define SF_V9_L6 0x30 | ||
368 | #define SF_V9_L7 0x38 | ||
369 | #define SF_V9_I0 0x40 | ||
370 | #define SF_V9_I1 0x48 | ||
371 | #define SF_V9_I2 0x50 | ||
372 | #define SF_V9_I3 0x58 | ||
373 | #define SF_V9_I4 0x60 | ||
374 | #define SF_V9_I5 0x68 | ||
375 | #define SF_V9_FP 0x70 | ||
376 | #define SF_V9_PC 0x78 | ||
377 | #define SF_V9_RETP 0x80 | ||
378 | #define SF_V9_XARG0 0x88 | ||
379 | #define SF_V9_XARG1 0x90 | ||
380 | #define SF_V9_XARG2 0x98 | ||
381 | #define SF_V9_XARG3 0xa0 | ||
382 | #define SF_V9_XARG4 0xa8 | ||
383 | #define SF_V9_XARG5 0xb0 | ||
384 | #define SF_V9_XXARG 0xb8 | ||
385 | |||
386 | #define SF_L0 0x00 | ||
387 | #define SF_L1 0x04 | ||
388 | #define SF_L2 0x08 | ||
389 | #define SF_L3 0x0c | ||
390 | #define SF_L4 0x10 | ||
391 | #define SF_L5 0x14 | ||
392 | #define SF_L6 0x18 | ||
393 | #define SF_L7 0x1c | ||
394 | #define SF_I0 0x20 | ||
395 | #define SF_I1 0x24 | ||
396 | #define SF_I2 0x28 | ||
397 | #define SF_I3 0x2c | ||
398 | #define SF_I4 0x30 | ||
399 | #define SF_I5 0x34 | ||
400 | #define SF_FP 0x38 | ||
401 | #define SF_PC 0x3c | ||
402 | #define SF_RETP 0x40 | ||
403 | #define SF_XARG0 0x44 | ||
404 | #define SF_XARG1 0x48 | ||
405 | #define SF_XARG2 0x4c | ||
406 | #define SF_XARG3 0x50 | ||
407 | #define SF_XARG4 0x54 | ||
408 | #define SF_XARG5 0x58 | ||
409 | #define SF_XXARG 0x5c | ||
410 | |||
411 | #ifdef __KERNEL__ | ||
412 | |||
413 | /* global_reg_snapshot offsets */ | ||
414 | #define GR_SNAP_TSTATE 0x00 | ||
415 | #define GR_SNAP_TPC 0x08 | ||
416 | #define GR_SNAP_TNPC 0x10 | ||
417 | #define GR_SNAP_O7 0x18 | ||
418 | #define GR_SNAP_I7 0x20 | ||
419 | #define GR_SNAP_RPC 0x28 | ||
420 | #define GR_SNAP_THREAD 0x30 | ||
421 | #define GR_SNAP_PAD1 0x38 | ||
422 | |||
423 | #endif /* __KERNEL__ */ | ||
424 | |||
425 | /* Stuff for the ptrace system call */ | ||
426 | #define PTRACE_SPARC_DETACH 11 | ||
427 | #define PTRACE_GETREGS 12 | ||
428 | #define PTRACE_SETREGS 13 | ||
429 | #define PTRACE_GETFPREGS 14 | ||
430 | #define PTRACE_SETFPREGS 15 | ||
431 | #define PTRACE_READDATA 16 | ||
432 | #define PTRACE_WRITEDATA 17 | ||
433 | #define PTRACE_READTEXT 18 | ||
434 | #define PTRACE_WRITETEXT 19 | ||
435 | #define PTRACE_GETFPAREGS 20 | ||
436 | #define PTRACE_SETFPAREGS 21 | ||
437 | |||
438 | /* There are for debugging 64-bit processes, either from a 32 or 64 bit | ||
439 | * parent. Thus their complements are for debugging 32-bit processes only. | ||
440 | */ | ||
441 | |||
442 | #define PTRACE_GETREGS64 22 | ||
443 | #define PTRACE_SETREGS64 23 | ||
444 | /* PTRACE_SYSCALL is 24 */ | ||
445 | #define PTRACE_GETFPREGS64 25 | ||
446 | #define PTRACE_SETFPREGS64 26 | ||
447 | |||
448 | #endif /* !(__SPARC_PTRACE_H) */ | ||