/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *  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 /* obsolete */
#define PTRACE_SETCRUNCHREGS    26 /* obsolete */
#define PTRACE_GETVFPREGS       27
#define PTRACE_SETVFPREGS       28
#define PTRACE_GETHBPREGS       29
#define PTRACE_SETHBPREGS       30
#define PTRACE_GETFDPIC         31

#define PTRACE_GETFDPIC_EXEC    0
#define PTRACE_GETFDPIC_INTERP  1

/*
 * PSR bits
 * Note on V7M there is no mode contained in the PSR
 */
#define USR26_MODE      0x00000000
#define FIQ26_MODE      0x00000001
#define IRQ26_MODE      0x00000002
#define SVC26_MODE      0x00000003
#if defined(__KERNEL__) && defined(CONFIG_CPU_V7M)
/*
 * Use 0 here to get code right that creates a userspace
 * or kernel space thread.
 */
#define USR_MODE        0x00000000
#define SVC_MODE        0x00000000
#else
#define USR_MODE        0x00000010
#define SVC_MODE        0x00000013
#endif
#define FIQ_MODE        0x00000011
#define IRQ_MODE        0x00000012
#define MON_MODE        0x00000016
#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 V4_PSR_T_BIT    0x00000020      /* >= V4T, but not V7M */
#define V7M_PSR_T_BIT   0x01000000
#if defined(__KERNEL__) && defined(CONFIG_CPU_V7M)
#define PSR_T_BIT       V7M_PSR_T_BIT
#else
/* for compatibility */
#define PSR_T_BIT       V4_PSR_T_BIT
#endif

#define PSR_F_BIT       0x00000040      /* >= V4, but not V7M */
#define PSR_I_BIT       0x00000080      /* >= V4, but not V7M */
#define PSR_A_BIT       0x00000100      /* >= V6, but not V7M */
#define PSR_E_BIT       0x00000200      /* >= V6, but not V7M */
#define PSR_J_BIT       0x01000000      /* >= V5J, but not V7M */
#define PSR_Q_BIT       0x08000000      /* >= V5E, including V7M */
#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 */

/* 
 * 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 */