55bdd69411
This patch adds the base support for the ARMv7-M architecture. It consists of the corresponding arch/arm/mm/ files and various #ifdef's around the kernel. Exception handling is implemented by a subsequent patch. [ukleinek: squash in some changes originating from commit b5717ba (Cortex-M3: Add support for the Microcontroller Prototyping System) from the v2.6.33-arm1 patch stack, port to post 3.6, drop zImage support, drop reorganisation of pt_regs, assert CONFIG_CPU_V7M doesn't leak into installed headers and a few cosmetic changes] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Jonathan Austin <jonathan.austin@arm.com> Tested-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
157 lines
4 KiB
C
157 lines
4 KiB
C
/*
|
|
* 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
|
|
* 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 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 */
|
|
|
|
/*
|
|
* 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 */
|