arch/arm/include/uapi/asm/ptrace.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  *  arch/arm/include/asm/ptrace.h
   4  *
   5  *  Copyright (C) 1996-2003 Russell King
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11 #ifndef _UAPI__ASM_ARM_PTRACE_H
  12 #define _UAPI__ASM_ARM_PTRACE_H
  13
  14 #include <asm/hwcap.h>
  15
  16 #define PTRACE_GETREGS          12
  17 #define PTRACE_SETREGS          13
  18 #define PTRACE_GETFPREGS        14
  19 #define PTRACE_SETFPREGS        15
  20 /* PTRACE_ATTACH is 16 */
  21 /* PTRACE_DETACH is 17 */
  22 #define PTRACE_GETWMMXREGS      18
  23 #define PTRACE_SETWMMXREGS      19
  24 /* 20 is unused */
  25 #define PTRACE_OLDSETOPTIONS    21
  26 #define PTRACE_GET_THREAD_AREA  22
  27 #define PTRACE_SET_SYSCALL      23
  28 /* PTRACE_SYSCALL is 24 */
  29 #define PTRACE_GETCRUNCHREGS    25
  30 #define PTRACE_SETCRUNCHREGS    26
  31 #define PTRACE_GETVFPREGS       27
  32 #define PTRACE_SETVFPREGS       28
  33 #define PTRACE_GETHBPREGS       29
  34 #define PTRACE_SETHBPREGS       30
  35
  36 /*
  37  * PSR bits
  38  * Note on V7M there is no mode contained in the PSR
  39  */
  40 #define USR26_MODE      0x00000000
  41 #define FIQ26_MODE      0x00000001
  42 #define IRQ26_MODE      0x00000002
  43 #define SVC26_MODE      0x00000003
  44 #if defined(__KERNEL__) && defined(CONFIG_CPU_V7M)
  45 /*
  46  * Use 0 here to get code right that creates a userspace
  47  * or kernel space thread.
  48  */
  49 #define USR_MODE        0x00000000
  50 #define SVC_MODE        0x00000000
  51 #else
  52 #define USR_MODE        0x00000010
  53 #define SVC_MODE        0x00000013
  54 #endif
  55 #define FIQ_MODE        0x00000011
  56 #define IRQ_MODE        0x00000012
  57 #define ABT_MODE        0x00000017
  58 #define HYP_MODE        0x0000001a
  59 #define UND_MODE        0x0000001b
  60 #define SYSTEM_MODE     0x0000001f
  61 #define MODE32_BIT      0x00000010
  62 #define MODE_MASK       0x0000001f
  63
  64 #define V4_PSR_T_BIT    0x00000020      /* >= V4T, but not V7M */
  65 #define V7M_PSR_T_BIT   0x01000000
  66 #if defined(__KERNEL__) && defined(CONFIG_CPU_V7M)
  67 #define PSR_T_BIT       V7M_PSR_T_BIT
  68 #else
  69 /* for compatibility */
  70 #define PSR_T_BIT       V4_PSR_T_BIT
  71 #endif
  72
  73 #define PSR_F_BIT       0x00000040      /* >= V4, but not V7M */
  74 #define PSR_I_BIT       0x00000080      /* >= V4, but not V7M */
  75 #define PSR_A_BIT       0x00000100      /* >= V6, but not V7M */
  76 #define PSR_E_BIT       0x00000200      /* >= V6, but not V7M */
  77 #define PSR_J_BIT       0x01000000      /* >= V5J, but not V7M */
  78 #define PSR_Q_BIT       0x08000000      /* >= V5E, including V7M */
  79 #define PSR_V_BIT       0x10000000
  80 #define PSR_C_BIT       0x20000000
  81 #define PSR_Z_BIT       0x40000000
  82 #define PSR_N_BIT       0x80000000
  83
  84 /*
  85  * Groups of PSR bits
  86  */
  87 #define PSR_f           0xff000000      /* Flags                */
  88 #define PSR_s           0x00ff0000      /* Status               */
  89 #define PSR_x           0x0000ff00      /* Extension            */
  90 #define PSR_c           0x000000ff      /* Control              */
  91
  92 /*
  93  * ARMv7 groups of PSR bits
  94  */
  95 #define APSR_MASK       0xf80f0000      /* N, Z, C, V, Q and GE flags */
  96 #define PSR_ISET_MASK   0x01000010      /* ISA state (J, T) mask */
  97 #define PSR_IT_MASK     0x0600fc00      /* If-Then execution state mask */
  98 #define PSR_ENDIAN_MASK 0x00000200      /* Endianness state mask */
  99
 100 /*
 101  * Default endianness state
 102  */
 103 #ifdef CONFIG_CPU_ENDIAN_BE8
 104 #define PSR_ENDSTATE    PSR_E_BIT
 105 #else
 106 #define PSR_ENDSTATE    0
 107 #endif
 108
 109 /*
 110  * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
 111  * process is located in memory.
 112  */
 113 #define PT_TEXT_ADDR            0x10000
 114 #define PT_DATA_ADDR            0x10004
 115 #define PT_TEXT_END_ADDR        0x10008
 116
 117 #ifndef __ASSEMBLY__
 118
 119 /*
 120  * This struct defines the way the registers are stored on the
 121  * stack during a system call.  Note that sizeof(struct pt_regs)
 122  * has to be a multiple of 8.
 123  */
 124 #ifndef __KERNEL__
 125 struct pt_regs {
 126         long uregs[18];
 127 };
 128 #endif /* __KERNEL__ */
 129
 130 #define ARM_cpsr        uregs[16]
 131 #define ARM_pc          uregs[15]
 132 #define ARM_lr          uregs[14]
 133 #define ARM_sp          uregs[13]
 134 #define ARM_ip          uregs[12]
 135 #define ARM_fp          uregs[11]
 136 #define ARM_r10         uregs[10]
 137 #define ARM_r9          uregs[9]
 138 #define ARM_r8          uregs[8]
 139 #define ARM_r7          uregs[7]
 140 #define ARM_r6          uregs[6]
 141 #define ARM_r5          uregs[5]
 142 #define ARM_r4          uregs[4]
 143 #define ARM_r3          uregs[3]
 144 #define ARM_r2          uregs[2]
 145 #define ARM_r1          uregs[1]
 146 #define ARM_r0          uregs[0]
 147 #define ARM_ORIG_r0     uregs[17]
 148
 149 /*
 150  * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS
 151  * and core dumps.
 152  */
 153 #define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ )
 154
 155
 156 #endif /* __ASSEMBLY__ */
 157
 158 #endif /* _UAPI__ASM_ARM_PTRACE_H */