ptrace.h

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/*
 *  arch/arm/include/asm/ptrace.h
 *
 *  Copyright (C) 1996-2003 Russell King
 *
 * 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_ARM_PTRACE_H
#define _UAPI__ASM_ARM_PTRACE_H

#include <asm/hwcap.h>

#define PTRACE_GETREGS      12
#define PTRACE_SETREGS      13
#define PTRACE_GETFPREGS    14
#define PTRACE_SETFPREGS    15
/* PTRACE_ATTACH is 16 */
/* PTRACE_DETACH is 17 */
#define PTRACE_GETWMMXREGS  18
#define PTRACE_SETWMMXREGS  19
/* 20 is unused */
#define PTRACE_OLDSETOPTIONS    21
#define PTRACE_GET_THREAD_AREA  22
#define PTRACE_SET_SYSCALL  23
/* PTRACE_SYSCALL is 24 */
#define PTRACE_GETCRUNCHREGS    25
#define PTRACE_SETCRUNCHREGS    26
#define PTRACE_GETVFPREGS   27
#define PTRACE_SETVFPREGS   28
#define PTRACE_GETHBPREGS   29
#define PTRACE_SETHBPREGS   30

/*
 * PSR bits
 */
#define USR26_MODE  0x00000000
#define FIQ26_MODE  0x00000001
#define IRQ26_MODE  0x00000002
#define SVC26_MODE  0x00000003
#define USR_MODE    0x00000010
#define FIQ_MODE    0x00000011
#define IRQ_MODE    0x00000012
#define SVC_MODE    0x00000013
#define ABT_MODE    0x00000017
#define HYP_MODE    0x0000001a
#define UND_MODE    0x0000001b
#define SYSTEM_MODE 0x0000001f
#define MODE32_BIT  0x00000010
#define MODE_MASK   0x0000001f
#define PSR_T_BIT   0x00000020
#define PSR_F_BIT   0x00000040
#define PSR_I_BIT   0x00000080
#define PSR_A_BIT   0x00000100
#define PSR_E_BIT   0x00000200
#define PSR_J_BIT   0x01000000
#define PSR_Q_BIT   0x08000000
#define PSR_V_BIT   0x10000000
#define PSR_C_BIT   0x20000000
#define PSR_Z_BIT   0x40000000
#define PSR_N_BIT   0x80000000

/*
 * Groups of PSR bits
 */
#define PSR_f       0xff000000  /* Flags        */
#define PSR_s       0x00ff0000  /* Status       */
#define PSR_x       0x0000ff00  /* Extension        */
#define PSR_c       0x000000ff  /* Control      */

/*
 * ARMv7 groups of PSR bits
 */
#define APSR_MASK   0xf80f0000  /* N, Z, C, V, Q and GE flags */
#define PSR_ISET_MASK   0x01000010  /* ISA state (J, T) mask */
#define PSR_IT_MASK 0x0600fc00  /* If-Then execution state mask */
#define PSR_ENDIAN_MASK 0x00000200  /* Endianness state mask */

/*
 * Default endianness state
 */
#ifdef CONFIG_CPU_ENDIAN_BE8
#define PSR_ENDSTATE    PSR_E_BIT
#else
#define PSR_ENDSTATE    0
#endif

/* 
 * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
 * process is located in memory.
 */
#define PT_TEXT_ADDR        0x10000
#define PT_DATA_ADDR        0x10004
#define PT_TEXT_END_ADDR    0x10008

#ifndef __ASSEMBLY__

/*
 * This struct defines the way the registers are stored on the
 * stack during a system call.  Note that sizeof(struct pt_regs)
 * has to be a multiple of 8.
 */
#ifndef __KERNEL__
struct pt_regs {
    long uregs[18];
};
#endif /* __KERNEL__ */

#define ARM_cpsr    uregs[16]
#define ARM_pc      uregs[15]
#define ARM_lr      uregs[14]
#define ARM_sp      uregs[13]
#define ARM_ip      uregs[12]
#define ARM_fp      uregs[11]
#define ARM_r10     uregs[10]
#define ARM_r9      uregs[9]
#define ARM_r8      uregs[8]
#define ARM_r7      uregs[7]
#define ARM_r6      uregs[6]
#define ARM_r5      uregs[5]
#define ARM_r4      uregs[4]
#define ARM_r3      uregs[3]
#define ARM_r2      uregs[2]
#define ARM_r1      uregs[1]
#define ARM_r0      uregs[0]
#define ARM_ORIG_r0 uregs[17]

/*
 * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS
 * and core dumps.
 */
#define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ )


#endif /* __ASSEMBLY__ */

#endif /* _UAPI__ASM_ARM_PTRACE_H */