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 force_successful_syscall_return() \
146 do { current_thread_info()->syscall_noerror = 1; \
148 #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
149 #define instruction_pointer(regs) ((regs)->tpc)
150 #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
151 #define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
153 extern unsigned long profile_pc(struct pt_regs *);
155 #define profile_pc(regs) instruction_pointer(regs)
157 extern void show_regs(struct pt_regs *);
160 #else /* __ASSEMBLY__ */
161 /* For assembly code. */
162 #define TRACEREG_SZ 0xa0
163 #define STACKFRAME_SZ 0xc0
165 #define TRACEREG32_SZ 0x50
166 #define STACKFRAME32_SZ 0x60
170 #define STACK_BIAS 2047
173 /* These are for pt_regs. */
174 #define PT_V9_G0 0x00
175 #define PT_V9_G1 0x08
176 #define PT_V9_G2 0x10
177 #define PT_V9_G3 0x18
178 #define PT_V9_G4 0x20
179 #define PT_V9_G5 0x28
180 #define PT_V9_G6 0x30
181 #define PT_V9_G7 0x38
182 #define PT_V9_I0 0x40
183 #define PT_V9_I1 0x48
184 #define PT_V9_I2 0x50
185 #define PT_V9_I3 0x58
186 #define PT_V9_I4 0x60
187 #define PT_V9_I5 0x68
188 #define PT_V9_I6 0x70
189 #define PT_V9_FP PT_V9_I6
190 #define PT_V9_I7 0x78
191 #define PT_V9_TSTATE 0x80
192 #define PT_V9_TPC 0x88
193 #define PT_V9_TNPC 0x90
195 #define PT_V9_MAGIC 0x9c
196 #define PT_TSTATE PT_V9_TSTATE
197 #define PT_TPC PT_V9_TPC
198 #define PT_TNPC PT_V9_TNPC
200 /* These for pt_regs32. */
224 /* Reg_window offsets */
225 #define RW_V9_L0 0x00
226 #define RW_V9_L1 0x08
227 #define RW_V9_L2 0x10
228 #define RW_V9_L3 0x18
229 #define RW_V9_L4 0x20
230 #define RW_V9_L5 0x28
231 #define RW_V9_L6 0x30
232 #define RW_V9_L7 0x38
233 #define RW_V9_I0 0x40
234 #define RW_V9_I1 0x48
235 #define RW_V9_I2 0x50
236 #define RW_V9_I3 0x58
237 #define RW_V9_I4 0x60
238 #define RW_V9_I5 0x68
239 #define RW_V9_I6 0x70
240 #define RW_V9_I7 0x78
259 /* Stack_frame offsets */
260 #define SF_V9_L0 0x00
261 #define SF_V9_L1 0x08
262 #define SF_V9_L2 0x10
263 #define SF_V9_L3 0x18
264 #define SF_V9_L4 0x20
265 #define SF_V9_L5 0x28
266 #define SF_V9_L6 0x30
267 #define SF_V9_L7 0x38
268 #define SF_V9_I0 0x40
269 #define SF_V9_I1 0x48
270 #define SF_V9_I2 0x50
271 #define SF_V9_I3 0x58
272 #define SF_V9_I4 0x60
273 #define SF_V9_I5 0x68
274 #define SF_V9_FP 0x70
275 #define SF_V9_PC 0x78
276 #define SF_V9_RETP 0x80
277 #define SF_V9_XARG0 0x88
278 #define SF_V9_XARG1 0x90
279 #define SF_V9_XARG2 0x98
280 #define SF_V9_XARG3 0xa0
281 #define SF_V9_XARG4 0xa8
282 #define SF_V9_XARG5 0xb0
283 #define SF_V9_XXARG 0xb8
302 #define SF_XARG0 0x44
303 #define SF_XARG1 0x48
304 #define SF_XARG2 0x4c
305 #define SF_XARG3 0x50
306 #define SF_XARG4 0x54
307 #define SF_XARG5 0x58
308 #define SF_XXARG 0x5c
312 /* global_reg_snapshot offsets */
313 #define GR_SNAP_TSTATE 0x00
314 #define GR_SNAP_TPC 0x08
315 #define GR_SNAP_TNPC 0x10
316 #define GR_SNAP_O7 0x18
317 #define GR_SNAP_I7 0x20
318 #define GR_SNAP_RPC 0x28
319 #define GR_SNAP_THREAD 0x30
320 #define GR_SNAP_PAD1 0x38
322 #endif /* __KERNEL__ */
324 /* Stuff for the ptrace system call */
325 #define PTRACE_SPARC_DETACH 11
326 #define PTRACE_GETREGS 12
327 #define PTRACE_SETREGS 13
328 #define PTRACE_GETFPREGS 14
329 #define PTRACE_SETFPREGS 15
330 #define PTRACE_READDATA 16
331 #define PTRACE_WRITEDATA 17
332 #define PTRACE_READTEXT 18
333 #define PTRACE_WRITETEXT 19
334 #define PTRACE_GETFPAREGS 20
335 #define PTRACE_SETFPAREGS 21
337 /* There are for debugging 64-bit processes, either from a 32 or 64 bit
338 * parent. Thus their complements are for debugging 32-bit processes only.
341 #define PTRACE_GETREGS64 22
342 #define PTRACE_SETREGS64 23
343 /* PTRACE_SYSCALL is 24 */
344 #define PTRACE_GETFPREGS64 25
345 #define PTRACE_SETFPREGS64 26
347 #endif /* !(_SPARC64_PTRACE_H) */