LXR linux/arch/nios2/include/asm/kgdb.h

   1/*
   2 * Copyright (C) 2015 Altera Corporation
   3 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
   4 *
   5 * Based on the code posted by Kazuyasu on the Altera Forum at:
   6 * http://www.alteraforum.com/forum/showpost.php?p=77003&postcount=20
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 *
  21 */
  22
  23#ifndef _ASM_NIOS2_KGDB_H
  24#define _ASM_NIOS2_KGDB_H
  25
  26#define CACHE_FLUSH_IS_SAFE     1
  27#define BUFMAX                  2048
  28
  29enum regnames {
  30        GDB_R0 = 0,
  31        GDB_AT,
  32        GDB_R2,
  33        GDB_R3,
  34        GDB_R4,
  35        GDB_R5,
  36        GDB_R6,
  37        GDB_R7,
  38        GDB_R8,
  39        GDB_R9,
  40        GDB_R10,
  41        GDB_R11,
  42        GDB_R12,
  43        GDB_R13,
  44        GDB_R14,
  45        GDB_R15,
  46        GDB_R16,
  47        GDB_R17,
  48        GDB_R18,
  49        GDB_R19,
  50        GDB_R20,
  51        GDB_R21,
  52        GDB_R22,
  53        GDB_R23,
  54        GDB_ET,
  55        GDB_BT,
  56        GDB_GP,
  57        GDB_SP,
  58        GDB_FP,
  59        GDB_EA,
  60        GDB_BA,
  61        GDB_RA,
  62        GDB_PC,
  63        GDB_STATUS,
  64        GDB_ESTATUS,
  65        GDB_BSTATUS,
  66        GDB_IENABLE,
  67        GDB_IPENDING,
  68        GDB_CPUID,
  69        GDB_CTL6,
  70        GDB_EXCEPTION,
  71        GDB_PTEADDR,
  72        GDB_TLBACC,
  73        GDB_TLBMISC,
  74        GDB_ECCINJ,
  75        GDB_BADADDR,
  76        GDB_CONFIG,
  77        GDB_MPUBASE,
  78        GDB_MPUACC,
  79        /* do not change the last entry or anything below! */
  80        GDB_NUMREGBYTES         /* number of registers */
  81};
  82
  83#define GDB_SIZEOF_REG          sizeof(u32)
  84#define DBG_MAX_REG_NUM (49)
  85#define NUMREGBYTES             (DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))
  86
  87#define BREAK_INSTR_SIZE        4
  88static inline void arch_kgdb_breakpoint(void)
  89{
  90        __asm__ __volatile__("trap 30\n");
  91}
  92
  93#endif /* _ASM_NIOS2_KGDB_H */
  94