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