gdb/i386-nat.h

   1 /* Native-dependent code for the i386.
   2
   3    Low level functions to implement Oeprating System specific
   4    code to manipulate I386 debug registers.
   5
   6    Copyright (C) 2009-2014 Free Software Foundation, Inc.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #ifndef I386_NAT_H
  24 #define I386_NAT_H 1
  25
  26 #include "nat/i386-dregs.h"
  27
  28 /* Hardware-assisted breakpoints and watchpoints.  */
  29
  30 /* Add watchpoint methods to the provided target_ops.
  31    Targets using i386 family debug registers for watchpoints should call
  32    this.  */
  33 struct target_ops;
  34 extern void i386_use_watchpoints (struct target_ops *);
  35
  36 /* Use this function to set i386_dr_low debug_register_length field
  37    rather than setting it directly to check that the length is only
  38    set once.  It also enables the 'maint set/show show-debug-regs'
  39    command.  */
  40
  41 extern void i386_set_debug_register_length (int len);
  42
  43 /* Use this function to reset the i386-nat.c debug register state.  */
  44
  45 extern void i386_cleanup_dregs (void);
  46
  47 /* Return a pointer to the local mirror of the debug registers of
  48    process PID.  */
  49
  50 extern struct i386_debug_reg_state *i386_debug_reg_state (pid_t pid);
  51
  52 /* Called whenever GDB is no longer debugging process PID.  It deletes
  53    data structures that keep track of debug register state.  */
  54
  55 extern void i386_forget_process (pid_t pid);
  56
  57 #endif /* I386_NAT_H */