text: /* Memory breakpoint interfaces for the remote server for GDB.
     Copyright 2002
     Free Software Foundation, Inc.
  
     Contributed by MontaVista Software.
  
     This file is part of GDB.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
  
     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., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.  */
  
  #ifndef MEM_BREAK_H
  #define MEM_BREAK_H
  
  /* Breakpoints are opaque.  */
  
  /* Create a new breakpoint at WHERE, and call HANDLER when
     it is hit.  */
  
  void set_breakpoint_at (CORE_ADDR where,
  			void (*handler) (CORE_ADDR));
  
  /* Create a reinsertion breakpoint at STOP_AT for the breakpoint
     currently at STOP_PC (and temporarily remove the breakpoint at
     STOP_PC).  */
  
  void reinsert_breakpoint_by_bp (CORE_ADDR stop_pc, CORE_ADDR stop_at);
  
  /* Change the status of the breakpoint at WHERE to inserted.  */
  
  void reinsert_breakpoint (CORE_ADDR where);
  
  /* Change the status of the breakpoint at WHERE to uninserted.  */
  
  void uninsert_breakpoint (CORE_ADDR where);
  
  /* See if any breakpoint claims ownership of STOP_PC.  Call the handler for
     the breakpoint, if found.  */
  
  int check_breakpoints (CORE_ADDR stop_pc);
  
  /* See if any breakpoints shadow the target memory area from MEM_ADDR
     to MEM_ADDR + MEM_LEN.  Update the data already read from the target
     (in BUF) if necessary.  */
  
  void check_mem_read (CORE_ADDR mem_addr, char *buf, int mem_len);
  
  /* See if any breakpoints shadow the target memory area from MEM_ADDR
     to MEM_ADDR + MEM_LEN.  Update the data to be written to the target
     (in BUF) if necessary, as well as the original data for any breakpoints.  */
  
  void check_mem_write (CORE_ADDR mem_addr, char *buf, int mem_len);
  
  /* Set the byte pattern to insert for memory breakpoints.  This function
     must be called before any breakpoints are set.  */
  
  void set_breakpoint_data (const char *bp_data, int bp_len);
  
  #endif /* MEM_BREAK_H */
  