/*
* kgdb support for ARC
*
* Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
*
* 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 __ARC_KGDB_H__
#define __ARC_KGDB_H__

#ifdef CONFIG_KGDB

#include <asm/ptrace.h>

/* to ensure compatibility with Linux 2.6.35, we don't implement the get/set
* register API yet */
#undef DBG_MAX_REG_NUM

#define GDB_MAX_REGS 39

#define BREAK_INSTR_SIZE 2
#define CACHE_FLUSH_IS_SAFE 1
#define NUMREGBYTES (GDB_MAX_REGS * 4)
#define BUFMAX 2048

static inline void arch_kgdb_breakpoint(void)
{
__asm__ __volatile__ ("trap_s 0x4\n");
}

extern void kgdb_trap(struct pt_regs *regs);

enum arc700_linux_regnums {
_R0 = 0,
_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13,
_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24,
_R25, _R26,
_BTA = 27,
_LP_START = 28,
_LP_END = 29,
_LP_COUNT = 30,
_STATUS32 = 31,
_BLINK = 32,
_FP = 33,
__SP = 34,
_EFA = 35,
_RET = 36,
_ORIG_R8 = 37,
_STOP_PC = 38
};

#else
#define kgdb_trap(regs)
#endif

#endif /* __ARC_KGDB_H__ */