1 /* $Id: ptrace.h,v 1.14 2002/02/09 19:49:32 davem Exp $ */
2 #ifndef _SPARC64_PTRACE_H
3 #define _SPARC64_PTRACE_H
5 #include <asm/pstate.h>
7 /* This struct defines the way the registers are stored on the
8 * stack during a system call and basically all traps.
11 #define PT_REGS_MAGIC 0x57ac6c00
16 unsigned long u_regs[16]; /* globals and ins */
22 /* We encode a magic number, PT_REGS_MAGIC, along
23 * with the %tt (trap type) register value at trap
24 * entry time. The magic number allows us to identify
25 * accurately a trap stack frame in the stack
26 * unwinder, and the %tt value allows us to test
27 * things like "in a system call" etc. for an arbitray
30 * The PT_REGS_MAGIC is choosen such that it can be
31 * loaded completely using just a sethi instruction.
41 unsigned int u_regs[16]; /* globals and ins */
60 #define UREG_FP UREG_I6
61 #define UREG_RETPC UREG_I7
63 /* A V9 register window */
65 unsigned long locals[8];
69 /* A 32-bit register window. */
71 unsigned int locals[8];
75 /* A V9 Sparc stack frame */
77 unsigned long locals[8];
79 struct sparc_stackf *fp;
80 unsigned long callers_pc;
82 unsigned long xargs[6];
83 unsigned long xxargs[1];
86 /* A 32-bit Sparc stack frame */
87 struct sparc_stackf32 {
88 unsigned int locals[8];
91 unsigned int callers_pc;
92 unsigned int structptr;
93 unsigned int xargs[6];
94 unsigned int xxargs[1];
98 unsigned long locals[8];
100 unsigned long _unused;
101 struct pt_regs *regs;
104 #define TRACEREG_SZ sizeof(struct pt_regs)
105 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
107 #define TRACEREG32_SZ sizeof(struct pt_regs32)
108 #define STACKFRAME32_SZ sizeof(struct sparc_stackf32)
112 #define __ARCH_WANT_COMPAT_SYS_PTRACE
114 #define force_successful_syscall_return() \
115 do { current_thread_info()->syscall_noerror = 1; \
117 #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
118 #define instruction_pointer(regs) ((regs)->tpc)
119 #define regs_return_value(regs) ((regs)->u_regs[UREG_I0])
121 extern unsigned long profile_pc(struct pt_regs *);
123 #define profile_pc(regs) instruction_pointer(regs)
125 extern void show_regs(struct pt_regs *);
126 extern void __show_regs(struct pt_regs *);
129 #else /* __ASSEMBLY__ */
130 /* For assembly code. */
131 #define TRACEREG_SZ 0xa0
132 #define STACKFRAME_SZ 0xc0
134 #define TRACEREG32_SZ 0x50
135 #define STACKFRAME32_SZ 0x60
139 #define STACK_BIAS 2047
142 /* These are for pt_regs. */
143 #define PT_V9_G0 0x00
144 #define PT_V9_G1 0x08
145 #define PT_V9_G2 0x10
146 #define PT_V9_G3 0x18
147 #define PT_V9_G4 0x20
148 #define PT_V9_G5 0x28
149 #define PT_V9_G6 0x30
150 #define PT_V9_G7 0x38
151 #define PT_V9_I0 0x40
152 #define PT_V9_I1 0x48
153 #define PT_V9_I2 0x50
154 #define PT_V9_I3 0x58
155 #define PT_V9_I4 0x60
156 #define PT_V9_I5 0x68
157 #define PT_V9_I6 0x70
158 #define PT_V9_FP PT_V9_I6
159 #define PT_V9_I7 0x78
160 #define PT_V9_TSTATE 0x80
161 #define PT_V9_TPC 0x88
162 #define PT_V9_TNPC 0x90
164 #define PT_V9_MAGIC 0x9c
165 #define PT_TSTATE PT_V9_TSTATE
166 #define PT_TPC PT_V9_TPC
167 #define PT_TNPC PT_V9_TNPC
169 /* These for pt_regs32. */
193 /* Reg_window offsets */
194 #define RW_V9_L0 0x00
195 #define RW_V9_L1 0x08
196 #define RW_V9_L2 0x10
197 #define RW_V9_L3 0x18
198 #define RW_V9_L4 0x20
199 #define RW_V9_L5 0x28
200 #define RW_V9_L6 0x30
201 #define RW_V9_L7 0x38
202 #define RW_V9_I0 0x40
203 #define RW_V9_I1 0x48
204 #define RW_V9_I2 0x50
205 #define RW_V9_I3 0x58
206 #define RW_V9_I4 0x60
207 #define RW_V9_I5 0x68
208 #define RW_V9_I6 0x70
209 #define RW_V9_I7 0x78
228 /* Stack_frame offsets */
229 #define SF_V9_L0 0x00
230 #define SF_V9_L1 0x08
231 #define SF_V9_L2 0x10
232 #define SF_V9_L3 0x18
233 #define SF_V9_L4 0x20
234 #define SF_V9_L5 0x28
235 #define SF_V9_L6 0x30
236 #define SF_V9_L7 0x38
237 #define SF_V9_I0 0x40
238 #define SF_V9_I1 0x48
239 #define SF_V9_I2 0x50
240 #define SF_V9_I3 0x58
241 #define SF_V9_I4 0x60
242 #define SF_V9_I5 0x68
243 #define SF_V9_FP 0x70
244 #define SF_V9_PC 0x78
245 #define SF_V9_RETP 0x80
246 #define SF_V9_XARG0 0x88
247 #define SF_V9_XARG1 0x90
248 #define SF_V9_XARG2 0x98
249 #define SF_V9_XARG3 0xa0
250 #define SF_V9_XARG4 0xa8
251 #define SF_V9_XARG5 0xb0
252 #define SF_V9_XXARG 0xb8
271 #define SF_XARG0 0x44
272 #define SF_XARG1 0x48
273 #define SF_XARG2 0x4c
274 #define SF_XARG3 0x50
275 #define SF_XARG4 0x54
276 #define SF_XARG5 0x58
277 #define SF_XXARG 0x5c
279 /* Stuff for the ptrace system call */
280 #define PTRACE_GETREGS 12
281 #define PTRACE_SETREGS 13
282 #define PTRACE_GETFPREGS 14
283 #define PTRACE_SETFPREGS 15
284 #define PTRACE_READDATA 16
285 #define PTRACE_WRITEDATA 17
286 #define PTRACE_READTEXT 18
287 #define PTRACE_WRITETEXT 19
288 #define PTRACE_GETFPAREGS 20
289 #define PTRACE_SETFPAREGS 21
291 /* There are for debugging 64-bit processes, either from a 32 or 64 bit
292 * parent. Thus their complements are for debugging 32-bit processes only.
295 #define PTRACE_GETREGS64 22
296 #define PTRACE_SETREGS64 23
297 /* PTRACE_SYSCALL is 24 */
298 #define PTRACE_GETFPREGS64 25
299 #define PTRACE_SETFPREGS64 26
301 #endif /* !(_SPARC64_PTRACE_H) */