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.
40 static inline int pt_regs_trap_type(struct pt_regs *regs)
42 return regs->magic & 0x1ff;
45 static inline int pt_regs_clear_trap_type(struct pt_regs *regs)
47 return regs->magic &= ~0x1ff;
50 static inline bool pt_regs_is_syscall(struct pt_regs *regs)
52 int tt = pt_regs_trap_type(regs);
54 return (tt == 0x110 || tt == 0x111 || tt == 0x16d);
62 unsigned int u_regs[16]; /* globals and ins */
81 #define UREG_FP UREG_I6
82 #define UREG_RETPC UREG_I7
84 /* A V9 register window */
86 unsigned long locals[8];
90 /* A 32-bit register window. */
92 unsigned int locals[8];
96 /* A V9 Sparc stack frame */
98 unsigned long locals[8];
100 struct sparc_stackf *fp;
101 unsigned long callers_pc;
103 unsigned long xargs[6];
104 unsigned long xxargs[1];
107 /* A 32-bit Sparc stack frame */
108 struct sparc_stackf32 {
109 unsigned int locals[8];
112 unsigned int callers_pc;
113 unsigned int structptr;
114 unsigned int xargs[6];
115 unsigned int xxargs[1];
119 unsigned long locals[8];
120 unsigned long ins[8];
121 unsigned long _unused;
122 struct pt_regs *regs;
125 #define TRACEREG_SZ sizeof(struct pt_regs)
126 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
128 #define TRACEREG32_SZ sizeof(struct pt_regs32)
129 #define STACKFRAME32_SZ sizeof(struct sparc_stackf32)
133 #define __ARCH_WANT_COMPAT_SYS_PTRACE
135 #define force_successful_syscall_return() \
136 do { current_thread_info()->syscall_noerror = 1; \
138 #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
139 #define instruction_pointer(regs) ((regs)->tpc)
140 #define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
142 extern unsigned long profile_pc(struct pt_regs *);
144 #define profile_pc(regs) instruction_pointer(regs)
146 extern void show_regs(struct pt_regs *);
147 extern void __show_regs(struct pt_regs *);
150 #else /* __ASSEMBLY__ */
151 /* For assembly code. */
152 #define TRACEREG_SZ 0xa0
153 #define STACKFRAME_SZ 0xc0
155 #define TRACEREG32_SZ 0x50
156 #define STACKFRAME32_SZ 0x60
160 #define STACK_BIAS 2047
163 /* These are for pt_regs. */
164 #define PT_V9_G0 0x00
165 #define PT_V9_G1 0x08
166 #define PT_V9_G2 0x10
167 #define PT_V9_G3 0x18
168 #define PT_V9_G4 0x20
169 #define PT_V9_G5 0x28
170 #define PT_V9_G6 0x30
171 #define PT_V9_G7 0x38
172 #define PT_V9_I0 0x40
173 #define PT_V9_I1 0x48
174 #define PT_V9_I2 0x50
175 #define PT_V9_I3 0x58
176 #define PT_V9_I4 0x60
177 #define PT_V9_I5 0x68
178 #define PT_V9_I6 0x70
179 #define PT_V9_FP PT_V9_I6
180 #define PT_V9_I7 0x78
181 #define PT_V9_TSTATE 0x80
182 #define PT_V9_TPC 0x88
183 #define PT_V9_TNPC 0x90
185 #define PT_V9_MAGIC 0x9c
186 #define PT_TSTATE PT_V9_TSTATE
187 #define PT_TPC PT_V9_TPC
188 #define PT_TNPC PT_V9_TNPC
190 /* These for pt_regs32. */
214 /* Reg_window offsets */
215 #define RW_V9_L0 0x00
216 #define RW_V9_L1 0x08
217 #define RW_V9_L2 0x10
218 #define RW_V9_L3 0x18
219 #define RW_V9_L4 0x20
220 #define RW_V9_L5 0x28
221 #define RW_V9_L6 0x30
222 #define RW_V9_L7 0x38
223 #define RW_V9_I0 0x40
224 #define RW_V9_I1 0x48
225 #define RW_V9_I2 0x50
226 #define RW_V9_I3 0x58
227 #define RW_V9_I4 0x60
228 #define RW_V9_I5 0x68
229 #define RW_V9_I6 0x70
230 #define RW_V9_I7 0x78
249 /* Stack_frame offsets */
250 #define SF_V9_L0 0x00
251 #define SF_V9_L1 0x08
252 #define SF_V9_L2 0x10
253 #define SF_V9_L3 0x18
254 #define SF_V9_L4 0x20
255 #define SF_V9_L5 0x28
256 #define SF_V9_L6 0x30
257 #define SF_V9_L7 0x38
258 #define SF_V9_I0 0x40
259 #define SF_V9_I1 0x48
260 #define SF_V9_I2 0x50
261 #define SF_V9_I3 0x58
262 #define SF_V9_I4 0x60
263 #define SF_V9_I5 0x68
264 #define SF_V9_FP 0x70
265 #define SF_V9_PC 0x78
266 #define SF_V9_RETP 0x80
267 #define SF_V9_XARG0 0x88
268 #define SF_V9_XARG1 0x90
269 #define SF_V9_XARG2 0x98
270 #define SF_V9_XARG3 0xa0
271 #define SF_V9_XARG4 0xa8
272 #define SF_V9_XARG5 0xb0
273 #define SF_V9_XXARG 0xb8
292 #define SF_XARG0 0x44
293 #define SF_XARG1 0x48
294 #define SF_XARG2 0x4c
295 #define SF_XARG3 0x50
296 #define SF_XARG4 0x54
297 #define SF_XARG5 0x58
298 #define SF_XXARG 0x5c
300 /* Stuff for the ptrace system call */
301 #define PTRACE_GETREGS 12
302 #define PTRACE_SETREGS 13
303 #define PTRACE_GETFPREGS 14
304 #define PTRACE_SETFPREGS 15
305 #define PTRACE_READDATA 16
306 #define PTRACE_WRITEDATA 17
307 #define PTRACE_READTEXT 18
308 #define PTRACE_WRITETEXT 19
309 #define PTRACE_GETFPAREGS 20
310 #define PTRACE_SETFPAREGS 21
312 /* There are for debugging 64-bit processes, either from a 32 or 64 bit
313 * parent. Thus their complements are for debugging 32-bit processes only.
316 #define PTRACE_GETREGS64 22
317 #define PTRACE_SETREGS64 23
318 /* PTRACE_SYSCALL is 24 */
319 #define PTRACE_GETFPREGS64 25
320 #define PTRACE_SETFPREGS64 26
322 #endif /* !(_SPARC64_PTRACE_H) */