gnu/dist/gdb6/gdb/config/ia64/nm-linux.h

   1 /* Native support for GNU/Linux, for GDB, the GNU debugger.
   2
   3    Copyright 1999, 2000, 2001, 2004, 2005
   4    Free Software Foundation, Inc.
   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 2 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, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef NM_LINUX_H
  24 #define NM_LINUX_H
  25
  26 struct target_ops;
  27
  28 #include "config/nm-linux.h"
  29
  30 /* This is the amount to subtract from u.u_ar0
  31    to get the offset in the core file of the register values.  */
  32 #define KERNEL_U_ADDR 0x0
  33
  34 /* Note:  It seems likely that we'll have to eventually define
  35    FETCH_INFERIOR_REGISTERS.  But until that time, we'll make do
  36    with the following. */
  37
  38 #define CANNOT_FETCH_REGISTER(regno) ia64_cannot_fetch_register(regno)
  39 extern int ia64_cannot_fetch_register (int regno);
  40
  41 #define CANNOT_STORE_REGISTER(regno) ia64_cannot_store_register(regno)
  42 extern int ia64_cannot_store_register (int regno);
  43
  44 #define U_REGS_OFFSET 0
  45
  46 /* Hardware watchpoints */
  47
  48 #define TARGET_CAN_USE_HARDWARE_WATCHPOINT(type, cnt, ot) 1
  49
  50 /* The IA-64 architecture can step over a watch point (without triggering
  51    it again) if the "dd" (data debug fault disable) bit in the processor
  52    status word is set.
  53
  54    This PSR bit is set in ia64_linux_stopped_by_watchpoint when the
  55    code there has determined that a hardware watchpoint has indeed
  56    been hit.  The CPU will then be able to execute one instruction
  57    without triggering a watchpoint. */
  58 #define HAVE_STEPPABLE_WATCHPOINT 1
  59
  60 #define STOPPED_BY_WATCHPOINT(W) \
  61   ia64_linux_stopped_by_watchpoint ()
  62 extern int ia64_linux_stopped_by_watchpoint ();
  63
  64 #define target_stopped_data_address(target, x) \
  65   ia64_linux_stopped_data_address(x)
  66 extern int ia64_linux_stopped_data_address (CORE_ADDR *addr_p);
  67
  68 #define target_insert_watchpoint(addr, len, type) \
  69   ia64_linux_insert_watchpoint (inferior_ptid, addr, len, type)
  70 extern int ia64_linux_insert_watchpoint (ptid_t ptid, CORE_ADDR addr,
  71                                          int len, int rw);
  72
  73 #define target_remove_watchpoint(addr, len, type) \
  74   ia64_linux_remove_watchpoint (inferior_ptid, addr, len)
  75 extern int ia64_linux_remove_watchpoint (ptid_t ptid, CORE_ADDR addr,
  76                                          int len);
  77
  78 #endif /* #ifndef NM_LINUX_H */