1#ifndef __SPARC_PTRACE_H 2#define __SPARC_PTRACE_H 3 4#if defined(__sparc__) && defined(__arch64__) 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 21struct 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 42struct 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 */ 51struct reg_window { 52 unsigned long locals[8]; 53 unsigned long ins[8]; 54}; 55 56/* A 32-bit register window. */ 57struct reg_window32 { 58 unsigned int locals[8]; 59 unsigned int ins[8]; 60}; 61 62/* A V9 Sparc stack frame */ 63struct 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 */ 74struct 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 84struct 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__) */ 91#else 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 101struct 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. */ 110struct reg_window32 { 111 unsigned long locals[8]; 112 unsigned long ins[8]; 113}; 114 115/* A Sparc stack frame */ 116struct 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 168static inline int pt_regs_trap_type(struct pt_regs *regs) 169{ 170 return regs->magic & 0x1ff; 171} 172 173static inline bool pt_regs_is_syscall(struct pt_regs *regs) 174{ 175 return (regs->tstate & TSTATE_SYSCALL); 176} 177 178static 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 191struct 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}; 201extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; 202 203#define force_successful_syscall_return() \ 204do { 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 211extern unsigned long profile_pc(struct pt_regs *); 212#else 213#define profile_pc(regs) instruction_pointer(regs) 214#endif 215extern 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 237static inline bool pt_regs_is_syscall(struct pt_regs *regs) 238{ 239 return (regs->psr & PSR_SYSCALL); 240} 241 242static 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]) 258unsigned long profile_pc(struct pt_regs *); 259extern 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 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) */ 449