1 #ifndef _SPARC64_PTRACE_H
2 #define _SPARC64_PTRACE_H
4 #include <asm/pstate.h>
6 /* This struct defines the way the registers are stored on the
7 * stack during a system call and basically all traps.
10 /* This magic value must have the low 9 bits clear,
11 * as that is where we encode the %tt value, see below.
13 #define PT_REGS_MAGIC 0x57ac6c00
17 #include <linux/types.h>
20 unsigned long u_regs[16]; /* globals and ins */
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
34 * The PT_REGS_MAGIC is choosen such that it can be
35 * loaded completely using just a sethi instruction.
45 unsigned int u_regs[16]; /* globals and ins */
64 #define UREG_FP UREG_I6
65 #define UREG_RETPC UREG_I7
67 /* A V9 register window */
69 unsigned long locals[8];
73 /* A 32-bit register window. */
75 unsigned int locals[8];
79 /* A V9 Sparc stack frame */
81 unsigned long locals[8];
83 struct sparc_stackf *fp;
84 unsigned long callers_pc;
86 unsigned long xargs[6];
87 unsigned long xxargs[1];
90 /* A 32-bit Sparc stack frame */
91 struct sparc_stackf32 {
92 unsigned int locals[8];
95 unsigned int callers_pc;
96 unsigned int structptr;
97 unsigned int xargs[6];
98 unsigned int xxargs[1];
102 unsigned long locals[8];
103 unsigned long ins[8];
104 unsigned long _unused;
105 struct pt_regs *regs;
108 #define TRACEREG_SZ sizeof(struct pt_regs)
109 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
111 #define TRACEREG32_SZ sizeof(struct pt_regs32)
112 #define STACKFRAME32_SZ sizeof(struct sparc_stackf32)
116 #include <linux/threads.h>
118 static inline int pt_regs_trap_type(struct pt_regs *regs)
120 return regs->magic & 0x1ff;
123 static inline bool pt_regs_is_syscall(struct pt_regs *regs)
125 return (regs->tstate & TSTATE_SYSCALL);
128 static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
130 return (regs->tstate &= ~TSTATE_SYSCALL);
133 struct global_reg_snapshot {
134 unsigned long tstate;
140 struct thread_info *thread;
143 extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
145 #define __ARCH_WANT_COMPAT_SYS_PTRACE
147 #define force_successful_syscall_return() \
148 do { current_thread_info()->syscall_noerror = 1; \
150 #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
151 #define instruction_pointer(regs) ((regs)->tpc)
152 #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
153 #define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
155 extern unsigned long profile_pc(struct pt_regs *);
157 #define profile_pc(regs) instruction_pointer(regs)
159 extern void show_regs(struct pt_regs *);
162 #else /* __ASSEMBLY__ */
163 /* For assembly code. */
164 #define TRACEREG_SZ 0xa0
165 #define STACKFRAME_SZ 0xc0
167 #define TRACEREG32_SZ 0x50
168 #define STACKFRAME32_SZ 0x60
172 #define STACK_BIAS 2047
175 /* These are for pt_regs. */
176 #define PT_V9_G0 0x00
177 #define PT_V9_G1 0x08
178 #define PT_V9_G2 0x10
179 #define PT_V9_G3 0x18
180 #define PT_V9_G4 0x20
181 #define PT_V9_G5 0x28
182 #define PT_V9_G6 0x30
183 #define PT_V9_G7 0x38
184 #define PT_V9_I0 0x40
185 #define PT_V9_I1 0x48
186 #define PT_V9_I2 0x50
187 #define PT_V9_I3 0x58
188 #define PT_V9_I4 0x60
189 #define PT_V9_I5 0x68
190 #define PT_V9_I6 0x70
191 #define PT_V9_FP PT_V9_I6
192 #define PT_V9_I7 0x78
193 #define PT_V9_TSTATE 0x80
194 #define PT_V9_TPC 0x88
195 #define PT_V9_TNPC 0x90
197 #define PT_V9_MAGIC 0x9c
198 #define PT_TSTATE PT_V9_TSTATE
199 #define PT_TPC PT_V9_TPC
200 #define PT_TNPC PT_V9_TNPC
202 /* These for pt_regs32. */
226 /* Reg_window offsets */
227 #define RW_V9_L0 0x00
228 #define RW_V9_L1 0x08
229 #define RW_V9_L2 0x10
230 #define RW_V9_L3 0x18
231 #define RW_V9_L4 0x20
232 #define RW_V9_L5 0x28
233 #define RW_V9_L6 0x30
234 #define RW_V9_L7 0x38
235 #define RW_V9_I0 0x40
236 #define RW_V9_I1 0x48
237 #define RW_V9_I2 0x50
238 #define RW_V9_I3 0x58
239 #define RW_V9_I4 0x60
240 #define RW_V9_I5 0x68
241 #define RW_V9_I6 0x70
242 #define RW_V9_I7 0x78
261 /* Stack_frame offsets */
262 #define SF_V9_L0 0x00
263 #define SF_V9_L1 0x08
264 #define SF_V9_L2 0x10
265 #define SF_V9_L3 0x18
266 #define SF_V9_L4 0x20
267 #define SF_V9_L5 0x28
268 #define SF_V9_L6 0x30
269 #define SF_V9_L7 0x38
270 #define SF_V9_I0 0x40
271 #define SF_V9_I1 0x48
272 #define SF_V9_I2 0x50
273 #define SF_V9_I3 0x58
274 #define SF_V9_I4 0x60
275 #define SF_V9_I5 0x68
276 #define SF_V9_FP 0x70
277 #define SF_V9_PC 0x78
278 #define SF_V9_RETP 0x80
279 #define SF_V9_XARG0 0x88
280 #define SF_V9_XARG1 0x90
281 #define SF_V9_XARG2 0x98
282 #define SF_V9_XARG3 0xa0
283 #define SF_V9_XARG4 0xa8
284 #define SF_V9_XARG5 0xb0
285 #define SF_V9_XXARG 0xb8
304 #define SF_XARG0 0x44
305 #define SF_XARG1 0x48
306 #define SF_XARG2 0x4c
307 #define SF_XARG3 0x50
308 #define SF_XARG4 0x54
309 #define SF_XARG5 0x58
310 #define SF_XXARG 0x5c
314 /* global_reg_snapshot offsets */
315 #define GR_SNAP_TSTATE 0x00
316 #define GR_SNAP_TPC 0x08
317 #define GR_SNAP_TNPC 0x10
318 #define GR_SNAP_O7 0x18
319 #define GR_SNAP_I7 0x20
320 #define GR_SNAP_RPC 0x28
321 #define GR_SNAP_THREAD 0x30
322 #define GR_SNAP_PAD1 0x38
324 #endif /* __KERNEL__ */
326 /* Stuff for the ptrace system call */
327 #define PTRACE_SPARC_DETACH 11
328 #define PTRACE_GETREGS 12
329 #define PTRACE_SETREGS 13
330 #define PTRACE_GETFPREGS 14
331 #define PTRACE_SETFPREGS 15
332 #define PTRACE_READDATA 16
333 #define PTRACE_WRITEDATA 17
334 #define PTRACE_READTEXT 18
335 #define PTRACE_WRITETEXT 19
336 #define PTRACE_GETFPAREGS 20
337 #define PTRACE_SETFPAREGS 21
339 /* There are for debugging 64-bit processes, either from a 32 or 64 bit
340 * parent. Thus their complements are for debugging 32-bit processes only.
343 #define PTRACE_GETREGS64 22
344 #define PTRACE_SETREGS64 23
345 /* PTRACE_SYSCALL is 24 */
346 #define PTRACE_GETFPREGS64 25
347 #define PTRACE_SETFPREGS64 26
349 #endif /* !(_SPARC64_PTRACE_H) */