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 #define PTRACE_GETFDPIC 31 36 37 #define PTRACE_GETFDPIC_EXEC 0 38 #define PTRACE_GETFDPIC_INTERP 1 39 40 /* 41 * PSR bits 42 * Note on V7M there is no mode contained in the PSR 43 */ 44 #define USR26_MODE 0x00000000 45 #define FIQ26_MODE 0x00000001 46 #define IRQ26_MODE 0x00000002 47 #define SVC26_MODE 0x00000003 48 #if defined(__KERNEL__) && defined(CONFIG_CPU_V7M) 49 /* 50 * Use 0 here to get code right that creates a userspace 51 * or kernel space thread. 52 */ 53 #define USR_MODE 0x00000000 54 #define SVC_MODE 0x00000000 55 #else 56 #define USR_MODE 0x00000010 57 #define SVC_MODE 0x00000013 58 #endif 59 #define FIQ_MODE 0x00000011 60 #define IRQ_MODE 0x00000012 61 #define MON_MODE 0x00000016 62 #define ABT_MODE 0x00000017 63 #define HYP_MODE 0x0000001a 64 #define UND_MODE 0x0000001b 65 #define SYSTEM_MODE 0x0000001f 66 #define MODE32_BIT 0x00000010 67 #define MODE_MASK 0x0000001f 68 69 #define V4_PSR_T_BIT 0x00000020 /* >= V4T, but not V7M */ 70 #define V7M_PSR_T_BIT 0x01000000 71 #if defined(__KERNEL__) && defined(CONFIG_CPU_V7M) 72 #define PSR_T_BIT V7M_PSR_T_BIT 73 #else 74 /* for compatibility */ 75 #define PSR_T_BIT V4_PSR_T_BIT 76 #endif 77 78 #define PSR_F_BIT 0x00000040 /* >= V4, but not V7M */ 79 #define PSR_I_BIT 0x00000080 /* >= V4, but not V7M */ 80 #define PSR_A_BIT 0x00000100 /* >= V6, but not V7M */ 81 #define PSR_E_BIT 0x00000200 /* >= V6, but not V7M */ 82 #define PSR_J_BIT 0x01000000 /* >= V5J, but not V7M */ 83 #define PSR_Q_BIT 0x08000000 /* >= V5E, including V7M */ 84 #define PSR_V_BIT 0x10000000 85 #define PSR_C_BIT 0x20000000 86 #define PSR_Z_BIT 0x40000000 87 #define PSR_N_BIT 0x80000000 88 89 /* 90 * Groups of PSR bits 91 */ 92 #define PSR_f 0xff000000 /* Flags */ 93 #define PSR_s 0x00ff0000 /* Status */ 94 #define PSR_x 0x0000ff00 /* Extension */ 95 #define PSR_c 0x000000ff /* Control */ 96 97 /* 98 * ARMv7 groups of PSR bits 99 */ 100 #define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */ 101 #define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */ 102 #define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */ 103 #define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */ 104 105 /* 106 * Default endianness state 107 */ 108 #ifdef CONFIG_CPU_ENDIAN_BE8 109 #define PSR_ENDSTATE PSR_E_BIT 110 #else 111 #define PSR_ENDSTATE 0 112 #endif 113 114 /* 115 * These are 'magic' values for PTRACE_PEEKUSR that return info about where a 116 * process is located in memory. 117 */ 118 #define PT_TEXT_ADDR 0x10000 119 #define PT_DATA_ADDR 0x10004 120 #define PT_TEXT_END_ADDR 0x10008 121 122 #ifndef __ASSEMBLY__ 123 124 /* 125 * This struct defines the way the registers are stored on the 126 * stack during a system call. Note that sizeof(struct pt_regs) 127 * has to be a multiple of 8. 128 */ 129 #ifndef __KERNEL__ 130 struct pt_regs { 131 long uregs[18]; 132 }; 133 #endif /* __KERNEL__ */ 134 135 #define ARM_cpsr uregs[16] 136 #define ARM_pc uregs[15] 137 #define ARM_lr uregs[14] 138 #define ARM_sp uregs[13] 139 #define ARM_ip uregs[12] 140 #define ARM_fp uregs[11] 141 #define ARM_r10 uregs[10] 142 #define ARM_r9 uregs[9] 143 #define ARM_r8 uregs[8] 144 #define ARM_r7 uregs[7] 145 #define ARM_r6 uregs[6] 146 #define ARM_r5 uregs[5] 147 #define ARM_r4 uregs[4] 148 #define ARM_r3 uregs[3] 149 #define ARM_r2 uregs[2] 150 #define ARM_r1 uregs[1] 151 #define ARM_r0 uregs[0] 152 #define ARM_ORIG_r0 uregs[17] 153 154 /* 155 * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS 156 * and core dumps. 157 */ 158 #define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ ) 159 160 161 #endif /* __ASSEMBLY__ */ 162 163 #endif /* _UAPI__ASM_ARM_PTRACE_H */ 164