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/* 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 */