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/* $Id: ptrace.h,v 1.1 2005-12-20 11:32:11 jcastillo Exp $ */

#ifndef _SPARC_PTRACE_H

#define _SPARC_PTRACE_H

#include <asm/psr.h>

/* This struct defines the way the registers are stored on the

 * stack during a system call and basically all traps.

 */

#ifndef __ASSEMBLY__

struct pt_regs {

        unsigned long psr;

        unsigned long pc;

        unsigned long npc;

        unsigned long y;

        unsigned long u_regs[16]; /* globals and ins */

};

#define UREG_G0        0

#define UREG_G1        1

#define UREG_G2        2

#define UREG_G3        3

#define UREG_G4        4

#define UREG_G5        5

#define UREG_G6        6

#define UREG_G7        7

#define UREG_I0        8

#define UREG_I1        9

#define UREG_I2        10

#define UREG_I3        11

#define UREG_I4        12

#define UREG_I5        13

#define UREG_I6        14

#define UREG_I7        15

#define UREG_WIM       UREG_G0

#define UREG_FADDR     UREG_G0

#define UREG_FP        UREG_I6

#define UREG_RETPC     UREG_I7

/* A register window */

struct reg_window {

        unsigned long locals[8];

        unsigned long ins[8];

};

/* A Sparc stack frame */

struct sparc_stackf {

        unsigned long locals[8];

        unsigned long ins[6];

        struct sparc_stackf *fp;

        unsigned long callers_pc;

        char *structptr;

        unsigned long xargs[6];

        unsigned long xxargs[1];

};

#define TRACEREG_SZ   sizeof(struct pt_regs)

#define STACKFRAME_SZ sizeof(struct sparc_stackf)

#define REGWIN_SZ     sizeof(struct reg_window)

#ifdef __KERNEL__

#define user_mode(regs) (!((regs)->psr & PSR_PS))

#define instruction_pointer(regs) ((regs)->pc)

extern void show_regs(struct pt_regs *);

#endif

#else /* __ASSEMBLY__ */

/* For assembly code. */

#define TRACEREG_SZ       0x50

#define STACKFRAME_SZ     0x60

#define REGWIN_SZ         0x40

#endif

/* First generic task_struct offsets. sizeof(task_struct)=1576 */

#define TASK_STATE        0x000

#define TASK_PRIORITY     0x008

#define TASK_SIGNAL       0x00c

#define TASK_BLOCKED      0x010

#define TASK_FLAGS        0x014

#define TASK_SAVED_KSTACK 0x054

#define TASK_KSTACK_PG    0x058

/* Thread stuff. */

#define THREAD_UMASK      0x210

#define THREAD_SADDR      0x218

#define THREAD_SDESC      0x21c

#define THREAD_KSP        0x220

#define THREAD_KPC        0x224

#define THREAD_KPSR       0x228

#define THREAD_KWIM       0x22c

#define THREAD_FORK_KPSR  0x230

#define THREAD_FORK_KWIM  0x234

#define THREAD_REG_WINDOW 0x238

#define THREAD_STACK_PTRS 0x438

#define THREAD_W_SAVED    0x458

#define THREAD_FLOAT_REGS 0x460

#define THREAD_FSR        0x560

#define THREAD_SIGSTK     0x5e8

#define THREAD_MM     0x620

#define THREAD_MM_CTX     0x008

/* These are for pt_regs. */

#define PT_PSR    0x0

#define PT_PC     0x4

#define PT_NPC    0x8

#define PT_Y      0xc

#define PT_G0     0x10

#define PT_WIM    PT_G0

#define PT_G1     0x14

#define PT_G2     0x18

#define PT_G3     0x1c

#define PT_G4     0x20

#define PT_G5     0x24

#define PT_G6     0x28

#define PT_G7     0x2c

#define PT_I0     0x30

#define PT_I1     0x34

#define PT_I2     0x38

#define PT_I3     0x3c

#define PT_I4     0x40

#define PT_I5     0x44

#define PT_I6     0x48

#define PT_FP     PT_I6

#define PT_I7     0x4c

/* Reg_window offsets */

#define RW_L0     0x00

#define RW_L1     0x04

#define RW_L2     0x08

#define RW_L3     0x0c

#define RW_L4     0x10

#define RW_L5     0x14

#define RW_L6     0x18

#define RW_L7     0x1c

#define RW_I0     0x20

#define RW_I1     0x24

#define RW_I2     0x28

#define RW_I3     0x2c

#define RW_I4     0x30

#define RW_I5     0x34

#define RW_I6     0x38

#define RW_I7     0x3c

/* Stack_frame offsets */

#define SF_L0     0x00

#define SF_L1     0x04

#define SF_L2     0x08

#define SF_L3     0x0c

#define SF_L4     0x10

#define SF_L5     0x14

#define SF_L6     0x18

#define SF_L7     0x1c

#define SF_I0     0x20

#define SF_I1     0x24

#define SF_I2     0x28

#define SF_I3     0x2c

#define SF_I4     0x30

#define SF_I5     0x34

#define SF_FP     0x38

#define SF_PC     0x3c

#define SF_RETP   0x40

#define SF_XARG0  0x44

#define SF_XARG1  0x48

#define SF_XARG2  0x4c

#define SF_XARG3  0x50

#define SF_XARG4  0x54

#define SF_XARG5  0x58

#define SF_XXARG  0x5c

/* Stuff for the ptrace system call */

#define PTRACE_SUNATTACH          10

#define PTRACE_SUNDETACH          11

#define PTRACE_GETREGS            12

#define PTRACE_SETREGS            13

#define PTRACE_GETFPREGS          14

#define PTRACE_SETFPREGS          15

#define PTRACE_READDATA           16

#define PTRACE_WRITEDATA          17

#define PTRACE_READTEXT           18

#define PTRACE_WRITETEXT          19

#define PTRACE_GETFPAREGS         20

#define PTRACE_SETFPAREGS         21

#define PTRACE_GETUCODE           29  /* stupid bsd-ism */

#endif /* !(_SPARC_PTRACE_H) */