gdb/gdbserver/mem-break.h

   1 /* Memory breakpoint interfaces for the remote server for GDB.
   2    Copyright (C) 2002, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
   3
   4    Contributed by MontaVista Software.
   5
   6    This file is part of GDB.
   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 3 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 #ifndef MEM_BREAK_H
  22 #define MEM_BREAK_H
  23
  24 /* Breakpoints are opaque.  */
  25
  26 /* Create a new breakpoint at WHERE, and call HANDLER when
  27    it is hit.  HANDLER should return 1 if the breakpoint
  28    should be deleted, 0 otherwise.  */
  29
  30 void set_breakpoint_at (CORE_ADDR where,
  31                         int (*handler) (CORE_ADDR));
  32
  33 /* Delete a breakpoint previously inserted at ADDR with
  34    set_breakpoint_at.  */
  35
  36 void delete_breakpoint_at (CORE_ADDR addr);
  37
  38 /* Create a reinsertion breakpoint at STOP_AT for the breakpoint
  39    currently at STOP_PC (and temporarily remove the breakpoint at
  40    STOP_PC).  */
  41
  42 void reinsert_breakpoint_by_bp (CORE_ADDR stop_pc, CORE_ADDR stop_at);
  43
  44 /* Change the status of the breakpoint at WHERE to inserted.  */
  45
  46 void reinsert_breakpoint (CORE_ADDR where);
  47
  48 /* Change the status of the breakpoint at WHERE to uninserted.  */
  49
  50 void uninsert_breakpoint (CORE_ADDR where);
  51
  52 /* See if any breakpoint claims ownership of STOP_PC.  Call the handler for
  53    the breakpoint, if found.  */
  54
  55 int check_breakpoints (CORE_ADDR stop_pc);
  56
  57 /* See if any breakpoints shadow the target memory area from MEM_ADDR
  58    to MEM_ADDR + MEM_LEN.  Update the data already read from the target
  59    (in BUF) if necessary.  */
  60
  61 void check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
  62
  63 /* See if any breakpoints shadow the target memory area from MEM_ADDR
  64    to MEM_ADDR + MEM_LEN.  Update the data to be written to the target
  65    (in BUF) if necessary, as well as the original data for any breakpoints.  */
  66
  67 void check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
  68
  69 /* Set the byte pattern to insert for memory breakpoints.  This function
  70    must be called before any breakpoints are set.  */
  71
  72 void set_breakpoint_data (const unsigned char *bp_data, int bp_len);
  73
  74 /* Delete all breakpoints.  */
  75
  76 void delete_all_breakpoints (void);
  77
  78 /* Delete all breakpoints, but do not try to un-insert them from the
  79    inferior.  */
  80
  81 void free_all_breakpoints (struct process_info *proc);
  82
  83 #endif /* MEM_BREAK_H */