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kernel/linux-rt-4.4.41/arch/hexagon/include/asm/kgdb.h 1.36 KB
5113f6f70   김현기   kernel add
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  /*
   * arch/hexagon/include/asm/kgdb.h - Hexagon KGDB Support
   *
   * Copyright (c) 2011, The Linux Foundation. All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 and
   * only version 2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   * 02110-1301, USA.
   */
  
  #ifndef __HEXAGON_KGDB_H__
  #define __HEXAGON_KGDB_H__
  
  #define BREAK_INSTR_SIZE 4
  #define CACHE_FLUSH_IS_SAFE   1
  #define BUFMAX       ((NUMREGBYTES * 2) + 512)
  
  static inline void arch_kgdb_breakpoint(void)
  {
  	asm("trap0(#0xDB)");
  }
  
  /* Registers:
   * 32 gpr + sa0/1 + lc0/1 + m0/1 + gp + ugp + pred + pc = 42 total.
   * vm regs = psp+elr+est+badva = 4
   * syscall+restart = 2 more
   * also add cs0/1 = 2
   * so 48 = 42 + 4 + 2 + 2
   */
  #define DBG_USER_REGS 42
  #define DBG_MAX_REG_NUM (DBG_USER_REGS + 8)
  #define NUMREGBYTES  (DBG_MAX_REG_NUM*4)
  
  #endif /* __HEXAGON_KGDB_H__ */