gnu/dist/gdb6/gdb/gdbserver/mem-break.h

   1 /* Memory breakpoint interfaces for the remote server for GDB.
   2    Copyright (C) 2002, 2005
   3    Free Software Foundation, Inc.
   4
   5    Contributed by MontaVista Software.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22    Boston, MA 02110-1301, USA.  */
  23
  24 #ifndef MEM_BREAK_H
  25 #define MEM_BREAK_H
  26
  27 /* Breakpoints are opaque.  */
  28
  29 /* Create a new breakpoint at WHERE, and call HANDLER when
  30    it is hit.  */
  31
  32 void set_breakpoint_at (CORE_ADDR where,
  33                         void (*handler) (CORE_ADDR));
  34
  35 /* Create a reinsertion breakpoint at STOP_AT for the breakpoint
  36    currently at STOP_PC (and temporarily remove the breakpoint at
  37    STOP_PC).  */
  38
  39 void reinsert_breakpoint_by_bp (CORE_ADDR stop_pc, CORE_ADDR stop_at);
  40
  41 /* Change the status of the breakpoint at WHERE to inserted.  */
  42
  43 void reinsert_breakpoint (CORE_ADDR where);
  44
  45 /* Change the status of the breakpoint at WHERE to uninserted.  */
  46
  47 void uninsert_breakpoint (CORE_ADDR where);
  48
  49 /* See if any breakpoint claims ownership of STOP_PC.  Call the handler for
  50    the breakpoint, if found.  */
  51
  52 int check_breakpoints (CORE_ADDR stop_pc);
  53
  54 /* See if any breakpoints shadow the target memory area from MEM_ADDR
  55    to MEM_ADDR + MEM_LEN.  Update the data already read from the target
  56    (in BUF) if necessary.  */
  57
  58 void check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
  59
  60 /* See if any breakpoints shadow the target memory area from MEM_ADDR
  61    to MEM_ADDR + MEM_LEN.  Update the data to be written to the target
  62    (in BUF) if necessary, as well as the original data for any breakpoints.  */
  63
  64 void check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
  65
  66 /* Set the byte pattern to insert for memory breakpoints.  This function
  67    must be called before any breakpoints are set.  */
  68
  69 void set_breakpoint_data (const unsigned char *bp_data, int bp_len);
  70
  71 #endif /* MEM_BREAK_H */