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#ifndef _ASMAXP_PTRACE_H

#define _ASMAXP_PTRACE_H

/*

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

 * kernel stack during a system call or other kernel entry

 *

 * NOTE! I want to minimize the overhead of system calls, so this

 * struct has as little information as possible.  I does not have

 *

 *  - floating point regs: the kernel doesn't change those

 *  - r9-15: saved by the C compiler

 *

 * This makes "fork()" and "exec()" a bit more complex, but should

 * give us low system call latency.

 */

struct pt_regs {

        unsigned long r0;

        unsigned long r1;

        unsigned long r2;

        unsigned long r3;

        unsigned long r4;

        unsigned long r5;

        unsigned long r6;

        unsigned long r7;

        unsigned long r8;

        unsigned long r19;

        unsigned long r20;

        unsigned long r21;

        unsigned long r22;

        unsigned long r23;

        unsigned long r24;

        unsigned long r25;

        unsigned long r26;

        unsigned long r27;

        unsigned long r28;

        unsigned long hae;

/* JRP - These are the values provided to a0-a2 by PALcode */

        unsigned long trap_a0;

        unsigned long trap_a1;

        unsigned long trap_a2;

/* These are saved by PAL-code: */

        unsigned long ps;

        unsigned long pc;

        unsigned long gp;

        unsigned long r16;

        unsigned long r17;

        unsigned long r18;

};

/*

 * This is the extended stack used by signal handlers and the context

 * switcher: it's pushed after the normal "struct pt_regs".

 */

struct switch_stack {

        unsigned long r9;

        unsigned long r10;

        unsigned long r11;

        unsigned long r12;

        unsigned long r13;

        unsigned long r14;

        unsigned long r15;

        unsigned long r26;

        unsigned long fp[32];   /* fp[31] is fpcr */

};

#ifdef __KERNEL__

#define user_mode(regs) ((regs)->ps & 8)

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

extern void show_regs(struct pt_regs *);

#endif

#endif