ptrace.h

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/*
 * Copyright (C) 2004-2006 Atmel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef _UAPI__ASM_AVR32_PTRACE_H
#define _UAPI__ASM_AVR32_PTRACE_H

#define PTRACE_GETREGS      12
#define PTRACE_SETREGS      13

/*
 * Status Register bits
 */
#define SR_H        0x20000000
#define SR_J        0x10000000
#define SR_DM       0x08000000
#define SR_D        0x04000000
#define MODE_NMI    0x01c00000
#define MODE_EXCEPTION  0x01800000
#define MODE_INT3   0x01400000
#define MODE_INT2   0x01000000
#define MODE_INT1   0x00c00000
#define MODE_INT0   0x00800000
#define MODE_SUPERVISOR 0x00400000
#define MODE_USER   0x00000000
#define MODE_MASK   0x01c00000
#define SR_EM       0x00200000
#define SR_I3M      0x00100000
#define SR_I2M      0x00080000
#define SR_I1M      0x00040000
#define SR_I0M      0x00020000
#define SR_GM       0x00010000

#define SR_H_BIT    29
#define SR_J_BIT    28
#define SR_DM_BIT   27
#define SR_D_BIT    26
#define MODE_SHIFT  22
#define SR_EM_BIT   21
#define SR_I3M_BIT  20
#define SR_I2M_BIT  19
#define SR_I1M_BIT  18
#define SR_I0M_BIT  17
#define SR_GM_BIT   16

/* The user-visible part */
#define SR_L        0x00000020
#define SR_Q        0x00000010
#define SR_V        0x00000008
#define SR_N        0x00000004
#define SR_Z        0x00000002
#define SR_C        0x00000001

#define SR_L_BIT    5
#define SR_Q_BIT    4
#define SR_V_BIT    3
#define SR_N_BIT    2
#define SR_Z_BIT    1
#define SR_C_BIT    0

/*
 * The order is defined by the stmts instruction. r0 is stored first,
 * so it gets the highest address.
 *
 * Registers 0-12 are general-purpose registers (r12 is normally used for
 * the function return value).
 * Register 13 is the stack pointer
 * Register 14 is the link register
 * Register 15 is the program counter (retrieved from the RAR sysreg)
 */
#define FRAME_SIZE_FULL 72
#define REG_R12_ORIG    68
#define REG_R0      64
#define REG_R1      60
#define REG_R2      56
#define REG_R3      52
#define REG_R4      48
#define REG_R5      44
#define REG_R6      40
#define REG_R7      36
#define REG_R8      32
#define REG_R9      28
#define REG_R10     24
#define REG_R11     20
#define REG_R12     16
#define REG_SP      12
#define REG_LR       8

#define FRAME_SIZE_MIN   8
#define REG_PC       4
#define REG_SR       0

#ifndef __ASSEMBLY__
struct pt_regs {
    /* These are always saved */
    unsigned long sr;
    unsigned long pc;

    /* These are sometimes saved */
    unsigned long lr;
    unsigned long sp;
    unsigned long r12;
    unsigned long r11;
    unsigned long r10;
    unsigned long r9;
    unsigned long r8;
    unsigned long r7;
    unsigned long r6;
    unsigned long r5;
    unsigned long r4;
    unsigned long r3;
    unsigned long r2;
    unsigned long r1;
    unsigned long r0;

    /* Only saved on system call */
    unsigned long r12_orig;
};


#endif /* ! __ASSEMBLY__ */

#endif /* _UAPI__ASM_AVR32_PTRACE_H */